WO2008157213A2 - Methods, systems, and computer program products for identifying a serving home subscriber server (hss) in a communications network - Google Patents
Methods, systems, and computer program products for identifying a serving home subscriber server (hss) in a communications network Download PDFInfo
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- WO2008157213A2 WO2008157213A2 PCT/US2008/066675 US2008066675W WO2008157213A2 WO 2008157213 A2 WO2008157213 A2 WO 2008157213A2 US 2008066675 W US2008066675 W US 2008066675W WO 2008157213 A2 WO2008157213 A2 WO 2008157213A2
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W8/00—Network data management
- H04W8/02—Processing of mobility data, e.g. registration information at HLR [Home Location Register] or VLR [Visitor Location Register]; Transfer of mobility data, e.g. between HLR, VLR or external networks
- H04W8/04—Registration at HLR or HSS [Home Subscriber Server]
Definitions
- the subject matter described herein relates to optimizing a subscriber locator function (SLF) in an IP multimedia subsystem (IMS). More particularly, the subject matter described herein relates to methods, systems, and computer program products for identifying a serving home subscriber server (HSS) in a communications network.
- SLF subscriber locator function
- IMS IP multimedia subsystem
- IP Internet protocol
- IMS multimedia subsystem
- IMS 3GPP
- 3GPP Generation Partnership Project
- IMS bridges the gap between the existing traditional telecommunications technology and Internet technology, allowing network operators to offer a standardized, reusable platform with new, innovative services by enhancing real time, multimedia mobile services, such as voice services, video telephony, messaging, conferencing, and push services.
- IMS can be used to provide services for both mobile networks and fixed networks at the same time, providing unique mixtures of services with transparency to the end-user.
- IMS supports the establishment of any type of media session (e.g., voice, video, text, etc.) and provides the service creator the ability to combine services in the same session and dynamically modify sessions (e.g., adding a video component to an existing voice session).
- new and innovative user-to-user and multi-user services have become available, such as enhanced voice services, video telephony, chat, push-to-talk, and multimedia conferencing, all of which are based on the concept of a multimedia session.
- the underlying IMS infrastructure enables mobile IP communication services via its ability to find a user in the network and then to establish a session with the user.
- the key IMS components enabling mobility management are the call session control function (CSCF) and home subscriber server (HSS).
- CSCF call session control function
- HSS home subscriber server
- the CSCF is essentially a proxy, which aids in the setup and management of sessions and forwards messages between IMS networks.
- the HSS holds all of the key subscriber information and enables users (
- a network operator may include multiple HSSs in a network. If each of the multiple HSSs is identically provisioned, i.e., includes copies of the same subscriber data, the HSSs may operate in a load sharing manner and it is not necessary to have a location function to determine which HSS holds a particular subscriber's data. However, if the multiple HSSs do not include identical data, it is necessary to identify the HSS that contains a particular subscriber's data when attempting to establish a call involving that subscriber. IMS documentation defines a subscriber locator function (SLF) for locating the HSS serving a particular subscriber when the subscriber's network includes multiple HSS functions. However, the implementation of the SLF is not believed to be specified. Accordingly, there exists a need for improved methods, systems, and computer program products for identifying a serving home subscriber server in a communications network.
- SLF subscriber locator function
- the subject matter described herein comprises methods, systems, and computer program products for identifying a serving home subscriber server (HSS) in a communications network.
- One method includes obtaining a subscriber identifier from a message.
- An exceptions- based data structure contained in a database is accessed to locate a database entry associated with the subscriber identifier.
- a range-based data structure contained in the database is accessed to locate the database entry associated with the subscriber identifier if the exceptions-based data structure does not contain the database entry.
- the method also includes acquiring serving HSS data that corresponds to the located entry from either the exceptions-based data structure and the range-based data structure.
- the subject matter described herein for identifying a serving HSS may be implemented using a computer program product comprising computer executable instructions embodied in a computer readable medium.
- Exemplary computer readable media suitable for implementing the subject matter described herein includes disk memory devices, programmable logic devices, and application specific integrated circuits.
- a computer readable medium that implements the subject matter described herein may be distributed across multiple physical devices and/or computing platforms.
- Figure 1 is a network diagram illustrating exemplary communications network adapted to identify a serving home subscriber server according to an embodiment of the subject matter described herein;
- Figure 2 is a flow chart illustrating exemplary steps for identify a serving home subscriber server in a communications network according to an embodiment of the subject matter described herein;
- Figure 3 is a network diagram illustrating exemplary communications network adapted to identify a serving home subscriber server using an E.164 identifier according to an embodiment of the subject matter described herein; and Figure 4 is a flow chart illustrating exemplary steps for identifying a serving home subscriber server using an E.164 identifier in a communications network according to an embodiment of the subject matter described herein.
- FIG. 1 illustrates an exemplary communications network 100 in which the present subject matter may be implemented according to an embodiment of the subject matter described herein.
- network 100 may include an interrogating call session control function (I-CSCF) 102, a subscriber location function (SLF) 104, and a plurality of home subscriber servers (HSS) 106i... n .
- I-CSCF 102 and SLF 104 may each be located and supported by separate application servers in network 100.
- SLF 104 may be co-located / integrated with a network element, such as a CSCF element.
- network 100 includes an IMS network.
- I-CSCF 102 may be adapted to receive a call signaling message (e.g., message 121), such as a SIP INVITE message, sent from a calling party (e.g., a calling subscriber) to a called party (e.g., a called subscriber).
- a proxy call session control function may be adapted to receive the call signaling message.
- I-CSCF 102 (or P-CSCF) is configured to subsequently obtain subscriber information (e.g., a subscriber identifier associated with the calling subscriber, such as the calling subscriber number) from the call signaling message.
- subscriber information e.g., a subscriber identifier associated with the calling subscriber, such as the calling subscriber number
- I-CSCF 102 transmits a query message 122 containing the subscriber information to SLF 104.
- SLF 104 is a function that resides on a dedicated application server in network 100.
- SLF 104 may include database 108, which may be accessed in response to receiving query message 122, which is specifically addressed to SLF 104.
- SLF 104 serves the function of storing and providing HSS identification information that identifies a serving HSS node for a given calling subscriber and does not intercept any messages directed to an HSS node or other like registry node (e.g., an HLR).
- database 108 may include a hierarchical data structure that contains a range-based section 110 that is made up of block sections or ranges of subscriber identifiers (e.g., subscriber URI values) and corresponding HSS identifiers.
- database 108 may also contain an exceptions-based section 112, which includes subscriber identifiers (i.e., subscriber URI values) that are exceptions to the subscriber identifier-to-HSS identifier associations in ranged-based section 110. The relationship between the two sections is described below in greater detail.
- range-based section 110 contains subscriber identifier data that may include ranges of SIP:URI, TELURI, Mailto:URI, or other URI values.
- Each entry in section 110 includes an alphabetic or numeric (e.g., E.164 formatted subscriber identifiers, mobile subscriber ISDN identifiers, plain old telephone service (POTS) identifiers, international mobile station identifiers (IMSI), etc.) range of subscriber identifiers, as defined by the wild card or "*" character in each entry.
- the entry indicated by E* at VZW.com may include all subscriber URIs within the VZW.com domain that begin with "E".
- the entry indexed by 336241* may correspond to a range of subscriber directory numbers from 3362410000 - 3362419999.
- the wild card operator is shown in database 108 for illustrative purposes.
- ranges may be identified by values that indicate the start and end of a range.
- a range of telephone numbers for 9193800000 to 9193809999 may be identified by the telephones at the endpoints of the range, i.e., 9193800000 and 9193809999. Any suitable method for identifying a range is intended to be within the scope of the subject matter described herein.
- database 108 is capable of storing more subscribers (and serving HSS identification data) in the same amount of space. This configuration also allows for more efficient lookups since fewer entries need to be accessed as SLF 104 attempts to locate an entry that matches the subscriber identifier received in message 122.
- Subscriber identifier section 112 of database 108 may include a database section that contains entries of individual subscriber identifier values, such as a SIP:URI value or a Mailto:URI value. Each subscriber identifier entry in section 112 may be associated with a corresponding HSS identifier.
- Exceptions-based subscriber identifier section 112 may also include numeric or
- TehURI values such as POTS or mobile telephone numbers.
- POTS or mobile telephone numbers.
- TehURI values such as POTS or mobile telephone numbers.
- URI value Ellie@VZW.com or the telephone number 9193803232 may be included in the exceptions-based data.
- Each URI value in section 112 has a corresponding HSS identifier (e.g., Ellie@VZW.com is associated with HSS B).
- an entry in exceptions-based section 112 may include a range or block of entries not unlike the format in section 110.
- range-based data refers to a grouping of data by numeric, alphabetic, or alphanumeric ranges.
- a range-based grouping of telephone numbers may include a group of telephone numbers that fall within a numeric range.
- a range-based grouping of URIs may be all URIs that fall within the same alphanumeric range.
- exceptions-based-data refers to data that is within one of the ranges or groupings of range based data or outside of all of the groupings or ranges of range based data.
- the number 3362415656 in exceptions-based section 112 of database 108 is within the range of 3362410000-3462419999 specified in range based section 110.
- 3362415656 contains a different HSS identifier to the range defined for 336241 * . Accordingly, the HSS identification rule for the entry corresponding to 3362415656 is an exception to the rule defined for the remaining entries in the range 336241*. It will be appreciated that according to one embodiment, range-based section 110 of SLF database 108 may be thought of as default SLF routing rules, which are only utilized in the event that an exception-based SLF routing rule could not be located.
- SLF 104 Upon receiving a query message (e.g., message 122), SLF 104 initially access and searches exceptions-based section 112 using the subscriber identifier. Namely, SLF 104 compares and attempts to match the subscriber URI with the URI entries in section 112 via a cross-referenced comparison. If a matching entry is found in exceptions-based section 112, then the associated HSS identification data is obtained and provided to the requesting entity (e.g., I- CSCF 102). If a match is not located in the exceptions-based section 112, then range-based section 110 is subsequently searched using the subscriber identifier. In one embodiment, SLF 104 searches section 110 to determine if the subscriber identifier falls within a designated range specified by an entry.
- a "match” i.e., if subscriber identifier falls within a range
- the associated HSS identifier is obtained and provided to the requesting entity. If a match is not located, then a default
- HSS identifier may be returned or an error indicator may be returned to the requesting entity.
- Ellie@VZW.com is listed as an exception in section 112.
- the first entry in section 110 indicates that Ellie@VZW.com would normally be associated with HSS A.
- the first entry of section 210 includes a wildcard operator that indicates that all identifiers starting with the letter "E" in the VZW.com domain are supported by HSS A.
- this particular subscriber URI is instead supported by HSS B (as indicated) as opposed to HSS A.
- FIG. 2 is a flow chart illustrating the exemplary steps of a method 200 for determining a serving HSS in a communications network according to an embodiment of the subject matter described herein.
- a call setup message is received.
- I-CSCF 102 receives a SIP INVITE message (e.g., message 121 in Figure 1) intended for a designated called subscriber from a calling subscriber.
- the INVITE message may include this called and calling subscriber information in the "To" and "From" parameters, respectively, of the message header.
- the subscriber identifier is obtained from the call signaling message.
- I-CSCF 102 extracts a subscriber URI from INVITE message 121.
- a query message is sent to an SLF.
- I-CSCF 102 transmits an SLF query message (e.g., query message 122 in Figure 1), which includes the subscriber identifier, to SLF 104.
- query message 122 may be a Diameter query message that includes the subscriber URI value.
- the connection between I-CSCF 102 and SLF 104 may include a Diameter interface.
- an exceptions data structure is searched using the subscriber identifier.
- SLF 104 utilizes the received subscriber identifier to initially query an exceptions-based section 112 of database 108.
- exceptions-based section 112 of database 108 includes a list of individual subscriber identifier values (or "subranges" of subscriber identifier values) that are exceptions to the range-based entries in section 110.
- SLF 104 compares the subscriber identifier contained in query message 122 with the entries in section 112. If a matching entry is not found in exceptions-based section 112 by SLF 104, then method 200 continues to block
- method 200 proceeds to block 216.
- a range-based data structure is searched using the subscriber identifier.
- SLF 104 utilizes the received subscriber identifier to query a range-based section 112 of database 108 (since SLF 104 did not find an exception that matched the subscriber identifier). For example, SLF 104 compares the subscriber identifier with the ranges listed in section 110 to determine if the subscriber identifier falls within a particular range.
- the serving HSS identification data is obtained.
- the SLF 104 acquires the serving HSS identification data associated with the subscriber identifier from database 108 (i.e., either from exceptions section 112 or range section 110). For example, SLF 104 obtains the HSS identifier that corresponds to the matched exceptions-based section entry.
- the serving HSS identification data (e.g., HSS identifier) is sent to the original querying entity.
- SLF 104 transmits the HSS identification data associated with the subscriber identifier to I-CSCF 102.
- the serving HSS is queried.
- I-CSCF 102 uses the HSS identifier to query the appropriate HSS (e.g., one HSS of HSSs 106i...n).
- I-CSCF 102 attempts to obtain the identity of the S-CSCF that is designated to handle the subscriber's call from the queried HSS.
- the subject matter described herein may include querying an E.164 number mapping (ENUM) server in order to obtain an E.164 number, which may be used as a subscriber identifier to access an SLF routing data structure (e.g., database 108).
- ENUM E.164 number mapping
- FIG 3 illustrates an exemplary communications network 300 in which the present subject matter may be implemented according to an embodiment of the subject matter described herein.
- network 300 is similar to network 100 except for the addition of ENUM server 302 (e.g., a computer supporting an E.164-to-URI mapping function) and ENUM database 304.
- ENUM server 302 e.g., a computer supporting an E.164-to-URI mapping function
- E.164 numbers can be used as access keys to entries corresponding to numeric ranges and exceptions to those ranges in database 108.
- a query that seeks, from an ENUM server, an E.164 number corresponding to a URI is referred to herein as a reverse ENUM query because such a query requests the reverse of the normal E.164 to URI mapping performed by ENUM servers.
- ENUM server 302 is adapted to receive a reverse ENUM query 323 from SLF 104.
- Query 323 may include a subscriber identifier, such as a subscriber URI, that is initially received by SLF 104.
- ENUM server 302 uses the subscriber identifier to access database 304 in order to obtain an associated E.164 number via a URI-to-E.164 number translation.
- ENUM database 304 may include a data structure that contains a plurality of URIs and corresponding E.164 numbers (see Figure 3). The associated E.164 number resulting from the reverse ENUM translation is then provided to SLF 104.
- SLF 104 uses the E.164 number and is used to search an SLF data structure (e.g., database 108) and determine the serving HSS for the subscriber associated with the E.164 number in a similar manner mentioned above.
- FIG. 4 is a flow chart illustrating the exemplary steps of a method 400 for determining a serving HSS using an E.164 number in a communications network according to an embodiment of the subject matter described herein.
- a call setup message is received.
- I-CSCF 102 receives a SIP INVITE message 121 intended for a designated called party from a calling subscriber.
- the INVITE message may include a subscriber identifier, such as a calling subscriber number or subscriber URI.
- the subscriber identifier is extracted from the call signaling message.
- I-CSCF 102 extracts a subscriber URI from INVITE message 121.
- a query message is sent to a SLF.
- I-CSCF 102 transmits an SLF query message (e.g., query message 122), which includes the subscriber identifier, to SLF 104.
- SLF 104 analyzes the subscriber identifier to ascertain whether it is an E.164 based identifier.
- SLF 104 recognizes the subscriber identifier to be a subscriber URI that may be associated to an E.164 number. If the subscriber identifier is found to be an E.164 number, then method 400 proceeds to block 410 and continues normally.
- method 400 continues to block 407, where a reverse-ENUM query message containing the subscriber identifier is sent to ENUM server 302.
- ENUM server 302 receives the query message and performs a reverse ENUM translation to obtain an E.164 number associated with the subscriber identifier from the ENUM database 304.
- the E.164 number is sent to SLF 104 via a reverse response message 324.
- an exceptions data structure is searched using the subscriber identifier.
- SLF 104 utilizes the E.164 number contained in message 324 to initially query an exceptions-based section 112 of database 108.
- SLF 104 compares the E.164 number contained in message 122 with the entries in section 112. If a matching entry is not found in exceptions- based section 112 by SLF 104, then method 400 continues to block 414. If a matching entry is found, then method 400 proceeds to block 420.
- a range-based data structure is searched using the subscriber identifier.
- SLF 104 utilizes the received E.164 number to query a range-based section 112 of database 108. For example, SLF 104 compares the subscriber identifier with all of the ranges listed in section 110 to determine if the subscriber identifier falls within a particular range.
- the serving HSS identification data is obtained.
- the SLF 104 acquires the serving HSS identification data associated with the E.164 number from database 108.
- the serving HSS identification data (e.g., HSS identifier) is sent to the querying entity.
- SLF 104 transmits the HSS identification data associated with the E.164 number to I-CSCF 102 via a response message 325.
- the serving HSS is queried.
- I-CSCF I-CSCF
- the method 400 then ends.
- an SLF function of the present subject matter is adapted to query an ENUM function prior to performing SLF processing.
- an SLF function may receive a query message from a CSCF node that includes a numeric subscriber identifier (e.g., E.164 formatted telephone number).
- the SLF is adapted to generate an ENUM query that includes the numeric subscriber identifier, and transmit the query to an ENUM function.
- the SLF receives an ENUM response message, which includes a subscriber URI, from the ENUM function and is adapted to use perform SLF processing (such as that described previously in this disclosure) using the returned subscriber URI.
- the present subject matter relates to various methods, systems, and computer program products for identifying a serving HSS in a communications network. For example, by employing the range- based and exceptions-based data hierarchy, the present subject matter is able to facilitate the storage of data in a highly efficient manner. Thus, more data may be stored in a fewer number of entries in a database structure. Similarly, by using the associated two-stage lookup procedure, high-speed data searches for identifying a subscriber's serving HSS in an IMS network may be realized.
Abstract
Methods, systems, and computer program products for determining a serving home subscriber server (HSS) in a communications network are described. One method includes obtaining a subscriber identifier from a query message. An exceptions-based data structure contained in a database is accessed to locate a database entry associated with the subscriber identifier. Similarly, a range-based data structure contained in the database is accessed to locate the database entry associated with the subscriber identifier if the exceptions-based data structure does not contain the database entry. The method also includes acquiring serving HSS data corresponding to the located entry from either the exceptions-based data structure or the range-based data structure.
Description
DESCRIPTION
METHODS, SYSTEMS, AND COMPUTER PROGRAM PRODUCTS FOR IDENTIFYING A SERVING HOME SUBSCRIBER SERVER (HSS) IN A
COMMUNICATIONS NETWORK
RELATED APPLICATIONS
This application claims the benefit of U.S. Provisional Patent Application Serial No. 60/934,703, filed June 15, 2007 and U.S. Patent Application Serial No. 11/888,907, filed August 2, 2007; the disclosures of each which are incorporated herein by reference in their entireties.
TECHNICAL FIELD
The subject matter described herein relates to optimizing a subscriber locator function (SLF) in an IP multimedia subsystem (IMS). More particularly, the subject matter described herein relates to methods, systems, and computer program products for identifying a serving home subscriber server (HSS) in a communications network.
BACKGROUND Internet protocol (IP) multimedia subsystem (IMS) is defined by the Third
Generation Partnership Project (3GPP) as a mobile network infrastructure that enables the convergence of data, speech, and mobile network technology over an IP-based infrastructure. IMS bridges the gap between the existing traditional telecommunications technology and Internet technology, allowing network operators to offer a standardized, reusable platform with new, innovative services by enhancing real time, multimedia mobile services, such as voice services, video telephony, messaging, conferencing, and push services. IMS can be used to provide services for both mobile networks and fixed networks at the same time, providing unique mixtures of services with transparency to the end-user.
IMS supports the establishment of any type of media session (e.g., voice, video, text, etc.) and provides the service creator the ability to combine services in the same session and dynamically modify sessions (e.g., adding a
video component to an existing voice session). As a result, new and innovative user-to-user and multi-user services have become available, such as enhanced voice services, video telephony, chat, push-to-talk, and multimedia conferencing, all of which are based on the concept of a multimedia session. The underlying IMS infrastructure enables mobile IP communication services via its ability to find a user in the network and then to establish a session with the user. The key IMS components enabling mobility management are the call session control function (CSCF) and home subscriber server (HSS). The CSCF is essentially a proxy, which aids in the setup and management of sessions and forwards messages between IMS networks. The HSS holds all of the key subscriber information and enables users (or servers) to locate and communicate with other end users.
As the number of subscribers or processing load on an individual HSS increases, it may be desirable for a network operator to include multiple HSSs in a network. If each of the multiple HSSs is identically provisioned, i.e., includes copies of the same subscriber data, the HSSs may operate in a load sharing manner and it is not necessary to have a location function to determine which HSS holds a particular subscriber's data. However, if the multiple HSSs do not include identical data, it is necessary to identify the HSS that contains a particular subscriber's data when attempting to establish a call involving that subscriber. IMS documentation defines a subscriber locator function (SLF) for locating the HSS serving a particular subscriber when the subscriber's network includes multiple HSS functions. However, the implementation of the SLF is not believed to be specified. Accordingly, there exists a need for improved methods, systems, and computer program products for identifying a serving home subscriber server in a communications network.
SUMMARY According to one aspect, the subject matter described herein comprises methods, systems, and computer program products for identifying a serving home subscriber server (HSS) in a communications network. One method includes obtaining a subscriber identifier from a message. An exceptions-
based data structure contained in a database is accessed to locate a database entry associated with the subscriber identifier. Similarly, a range-based data structure contained in the database is accessed to locate the database entry associated with the subscriber identifier if the exceptions-based data structure does not contain the database entry. The method also includes acquiring serving HSS data that corresponds to the located entry from either the exceptions-based data structure and the range-based data structure.
The subject matter described herein for identifying a serving HSS may be implemented using a computer program product comprising computer executable instructions embodied in a computer readable medium. Exemplary computer readable media suitable for implementing the subject matter described herein includes disk memory devices, programmable logic devices, and application specific integrated circuits. In addition, a computer readable medium that implements the subject matter described herein may be distributed across multiple physical devices and/or computing platforms.
BRIEF DESCRIPTION OF THE DRAWINGS
Preferred embodiments of the subject matter described herein will now be explained with reference to the accompanying drawings of which: Figure 1 is a network diagram illustrating exemplary communications network adapted to identify a serving home subscriber server according to an embodiment of the subject matter described herein;
Figure 2 is a flow chart illustrating exemplary steps for identify a serving home subscriber server in a communications network according to an embodiment of the subject matter described herein; and
Figure 3 is a network diagram illustrating exemplary communications network adapted to identify a serving home subscriber server using an E.164 identifier according to an embodiment of the subject matter described herein; and Figure 4 is a flow chart illustrating exemplary steps for identifying a serving home subscriber server using an E.164 identifier in a communications network according to an embodiment of the subject matter described herein.
DETAILED DESCRIPTION
The present subject matter relates to systems and methods for identifying a serving home subscriber server (HSS) in a communications network. Figure 1 illustrates an exemplary communications network 100 in which the present subject matter may be implemented according to an embodiment of the subject matter described herein.
Referring to Figure 1 , network 100 may include an interrogating call session control function (I-CSCF) 102, a subscriber location function (SLF) 104, and a plurality of home subscriber servers (HSS) 106i...n. I-CSCF 102 and SLF 104 may each be located and supported by separate application servers in network 100. In other embodiments of the present subject matter, SLF 104 may be co-located / integrated with a network element, such as a CSCF element. In one embodiment, network 100 includes an IMS network.
In one embodiment, I-CSCF 102 may be adapted to receive a call signaling message (e.g., message 121), such as a SIP INVITE message, sent from a calling party (e.g., a calling subscriber) to a called party (e.g., a called subscriber). In an alternate embodiment, a proxy call session control function (P-CSCF) may be adapted to receive the call signaling message. In response to receiving message 121, I-CSCF 102 (or P-CSCF) is configured to subsequently obtain subscriber information (e.g., a subscriber identifier associated with the calling subscriber, such as the calling subscriber number) from the call signaling message. In order to locate a serving HSS of the calling subscriber (which is needed to further service the call), I-CSCF 102 transmits a query message 122 containing the subscriber information to SLF 104. In one embodiment, SLF 104 is a function that resides on a dedicated application server in network 100. SLF 104 may include database 108, which may be accessed in response to receiving query message 122, which is specifically addressed to SLF 104. Namely, SLF 104 serves the function of storing and providing HSS identification information that identifies a serving HSS node for a given calling subscriber and does not intercept any messages directed to an HSS node or other like registry node (e.g., an HLR). In one embodiment, database 108 may include a hierarchical data structure that contains a range-based section 110 that is made up of block sections or ranges
of subscriber identifiers (e.g., subscriber URI values) and corresponding HSS identifiers. Likewise, database 108 may also contain an exceptions-based section 112, which includes subscriber identifiers (i.e., subscriber URI values) that are exceptions to the subscriber identifier-to-HSS identifier associations in ranged-based section 110. The relationship between the two sections is described below in greater detail.
In one embodiment, range-based section 110 contains subscriber identifier data that may include ranges of SIP:URI, TELURI, Mailto:URI, or other URI values. Each entry in section 110 includes an alphabetic or numeric (e.g., E.164 formatted subscriber identifiers, mobile subscriber ISDN identifiers, plain old telephone service (POTS) identifiers, international mobile station identifiers (IMSI), etc.) range of subscriber identifiers, as defined by the wild card or "*" character in each entry. For example, the entry indicated by E* at VZW.com may include all subscriber URIs within the VZW.com domain that begin with "E". In another example, the entry indexed by 336241* may correspond to a range of subscriber directory numbers from 3362410000 - 3362419999. It should also be noted that the wild card operator is shown in database 108 for illustrative purposes. In an actual implementation, ranges may be identified by values that indicate the start and end of a range. For example, a range of telephone numbers for 9193800000 to 9193809999 may be identified by the telephones at the endpoints of the range, i.e., 9193800000 and 9193809999. Any suitable method for identifying a range is intended to be within the scope of the subject matter described herein.
By utilizing a data structure that employs a range (or block) of subscriber identifiers as opposed to numerous single entries of subscriber identifiers that represent the exact same information, database 108 is capable of storing more subscribers (and serving HSS identification data) in the same amount of space. This configuration also allows for more efficient lookups since fewer entries need to be accessed as SLF 104 attempts to locate an entry that matches the subscriber identifier received in message 122.
Subscriber identifier section 112 of database 108 may include a database section that contains entries of individual subscriber identifier values, such as a SIP:URI value or a Mailto:URI value. Each subscriber identifier entry
in section 112 may be associated with a corresponding HSS identifier.
Exceptions-based subscriber identifier section 112 may also include numeric or
TehURI values, such as POTS or mobile telephone numbers. For example, the
URI value Ellie@VZW.com or the telephone number 9193803232 may be included in the exceptions-based data. Each URI value in section 112 has a corresponding HSS identifier (e.g., Ellie@VZW.com is associated with HSS B).
In an alternate embodiment, an entry in exceptions-based section 112 may include a range or block of entries not unlike the format in section 110.
As used herein, the term "range-based data" refers to a grouping of data by numeric, alphabetic, or alphanumeric ranges. For example, a range-based grouping of telephone numbers may include a group of telephone numbers that fall within a numeric range. In another example, a range-based grouping of URIs may be all URIs that fall within the same alphanumeric range. The term "exceptions-based-data" refers to data that is within one of the ranges or groupings of range based data or outside of all of the groupings or ranges of range based data. For example, the number 3362415656 in exceptions-based section 112 of database 108 is within the range of 3362410000-3462419999 specified in range based section 110. However, 3362415656 contains a different HSS identifier to the range defined for 336241*. Accordingly, the HSS identification rule for the entry corresponding to 3362415656 is an exception to the rule defined for the remaining entries in the range 336241*. It will be appreciated that according to one embodiment, range-based section 110 of SLF database 108 may be thought of as default SLF routing rules, which are only utilized in the event that an exception-based SLF routing rule could not be located.
Upon receiving a query message (e.g., message 122), SLF 104 initially access and searches exceptions-based section 112 using the subscriber identifier. Namely, SLF 104 compares and attempts to match the subscriber URI with the URI entries in section 112 via a cross-referenced comparison. If a matching entry is found in exceptions-based section 112, then the associated HSS identification data is obtained and provided to the requesting entity (e.g., I- CSCF 102). If a match is not located in the exceptions-based section 112, then range-based section 110 is subsequently searched using the subscriber
identifier. In one embodiment, SLF 104 searches section 110 to determine if the subscriber identifier falls within a designated range specified by an entry.
If a "match" (i.e., if subscriber identifier falls within a range) is located in the ranged-based section 110, then the associated HSS identifier is obtained and provided to the requesting entity. If a match is not located, then a default
HSS identifier may be returned or an error indicator may be returned to the requesting entity.
For example, referring to database 108 in Figure 1 , Ellie@VZW.com is listed as an exception in section 112. The first entry in section 110 indicates that Ellie@VZW.com would normally be associated with HSS A. Notably, the first entry of section 210 includes a wildcard operator that indicates that all identifiers starting with the letter "E" in the VZW.com domain are supported by HSS A. However, since Ellie@VZW.com is listed as an exception in section 112, this particular subscriber URI is instead supported by HSS B (as indicated) as opposed to HSS A.
Figure 2 is a flow chart illustrating the exemplary steps of a method 200 for determining a serving HSS in a communications network according to an embodiment of the subject matter described herein. In block 202, a call setup message is received. In one embodiment, I-CSCF 102 receives a SIP INVITE message (e.g., message 121 in Figure 1) intended for a designated called subscriber from a calling subscriber. The INVITE message may include this called and calling subscriber information in the "To" and "From" parameters, respectively, of the message header.
In block 204, the subscriber identifier is obtained from the call signaling message. In one embodiment, I-CSCF 102 extracts a subscriber URI from INVITE message 121.
In block 206, a query message is sent to an SLF. For example, I-CSCF 102 transmits an SLF query message (e.g., query message 122 in Figure 1), which includes the subscriber identifier, to SLF 104. In one embodiment, query message 122 may be a Diameter query message that includes the subscriber URI value. In this scenario, the connection between I-CSCF 102 and SLF 104 may include a Diameter interface.
In block 208, an exceptions data structure is searched using the subscriber identifier. In one embodiment, SLF 104 utilizes the received subscriber identifier to initially query an exceptions-based section 112 of database 108. As mentioned above, exceptions-based section 112 of database 108 includes a list of individual subscriber identifier values (or "subranges" of subscriber identifier values) that are exceptions to the range-based entries in section 110.
In block 210, a determination is made as to whether the subscriber identifier matches one of the entries in exceptions-based section 212. In one embodiment, SLF 104 compares the subscriber identifier contained in query message 122 with the entries in section 112. If a matching entry is not found in exceptions-based section 112 by SLF 104, then method 200 continues to block
212. If a matching entry is found, then method 200 proceeds to block 216.
In block 212, a range-based data structure is searched using the subscriber identifier. In one embodiment, SLF 104 utilizes the received subscriber identifier to query a range-based section 112 of database 108 (since SLF 104 did not find an exception that matched the subscriber identifier). For example, SLF 104 compares the subscriber identifier with the ranges listed in section 110 to determine if the subscriber identifier falls within a particular range.
In block 214, a determination as to whether the subscriber identifier is included within a particular range listed in section 110. If a "match" is found (i.e., subscriber identifier is within a listed range), then method 200 continues to block 216. If a "match" is not found, then method 200 proceeds to block 220, where a predefined default HSS identifier is returned to I-CSCF 102. Alternatively, an error message may be sent to I-CSCF 102 indicating that a serving HSS cannot be found in either section 110 or section 112.
In block 216, the serving HSS identification data is obtained. In one embodiment, the SLF 104 acquires the serving HSS identification data associated with the subscriber identifier from database 108 (i.e., either from exceptions section 112 or range section 110). For example, SLF 104 obtains
the HSS identifier that corresponds to the matched exceptions-based section entry.
In block 218, the serving HSS identification data (e.g., HSS identifier) is sent to the original querying entity. In one embodiment, after finding a match from either section 110 or section 112, SLF 104 transmits the HSS identification data associated with the subscriber identifier to I-CSCF 102.
In block 222, the serving HSS is queried. In one embodiment, I-CSCF 102 uses the HSS identifier to query the appropriate HSS (e.g., one HSS of HSSs 106i...n). In one embodiment, I-CSCF 102 attempts to obtain the identity of the S-CSCF that is designated to handle the subscriber's call from the queried HSS.
In one embodiment, the subject matter described herein may include querying an E.164 number mapping (ENUM) server in order to obtain an E.164 number, which may be used as a subscriber identifier to access an SLF routing data structure (e.g., database 108). Figure 3 illustrates an exemplary communications network 300 in which the present subject matter may be implemented according to an embodiment of the subject matter described herein. In one embodiment, network 300 is similar to network 100 except for the addition of ENUM server 302 (e.g., a computer supporting an E.164-to-URI mapping function) and ENUM database 304. One reason that it may be desirable to identify an E.164 number corresponding to a URI is that E.164 numbers can be used as access keys to entries corresponding to numeric ranges and exceptions to those ranges in database 108. A query that seeks, from an ENUM server, an E.164 number corresponding to a URI is referred to herein as a reverse ENUM query because such a query requests the reverse of the normal E.164 to URI mapping performed by ENUM servers.
In one embodiment, ENUM server 302 is adapted to receive a reverse ENUM query 323 from SLF 104. Query 323 may include a subscriber identifier, such as a subscriber URI, that is initially received by SLF 104. After receiving query 323, ENUM server 302 uses the subscriber identifier to access database 304 in order to obtain an associated E.164 number via a URI-to-E.164 number translation. In one embodiment, ENUM database 304 may include a data structure that contains a plurality of URIs and corresponding E.164 numbers
(see Figure 3). The associated E.164 number resulting from the reverse ENUM translation is then provided to SLF 104. SLF 104 then uses the E.164 number and is used to search an SLF data structure (e.g., database 108) and determine the serving HSS for the subscriber associated with the E.164 number in a similar manner mentioned above.
Figure 4 is a flow chart illustrating the exemplary steps of a method 400 for determining a serving HSS using an E.164 number in a communications network according to an embodiment of the subject matter described herein. In block 402, a call setup message is received. In one embodiment, I-CSCF 102 receives a SIP INVITE message 121 intended for a designated called party from a calling subscriber. The INVITE message may include a subscriber identifier, such as a calling subscriber number or subscriber URI.
In block 404, the subscriber identifier is extracted from the call signaling message. In one embodiment, I-CSCF 102 extracts a subscriber URI from INVITE message 121.
In block 405, a query message is sent to a SLF. For example, I-CSCF 102 transmits an SLF query message (e.g., query message 122), which includes the subscriber identifier, to SLF 104.
In block 406, a determination is made as to whether the subscriber identifier is an E.164 identifier. In one embodiment, SLF 104 analyzes the subscriber identifier to ascertain whether it is an E.164 based identifier. In one embodiment, SLF 104 recognizes the subscriber identifier to be a subscriber URI that may be associated to an E.164 number. If the subscriber identifier is found to be an E.164 number, then method 400 proceeds to block 410 and continues normally.
If the subscriber identifier is found not to be an E.164 identifier, then method 400 continues to block 407, where a reverse-ENUM query message containing the subscriber identifier is sent to ENUM server 302. In block 408, ENUM server 302 receives the query message and performs a reverse ENUM translation to obtain an E.164 number associated with the subscriber identifier from the ENUM database 304. In block 409, the E.164 number is sent to SLF 104 via a reverse response message 324.
In block 410, an exceptions data structure is searched using the subscriber identifier. In one embodiment, SLF 104 utilizes the E.164 number contained in message 324 to initially query an exceptions-based section 112 of database 108. In block 412, a determination is made as to whether the E.164 number matches one of the entries in exceptions-based section 112. In one embodiment, SLF 104 compares the E.164 number contained in message 122 with the entries in section 112. If a matching entry is not found in exceptions- based section 112 by SLF 104, then method 400 continues to block 414. If a matching entry is found, then method 400 proceeds to block 420.
In block 414, a range-based data structure is searched using the subscriber identifier. In one embodiment, SLF 104 utilizes the received E.164 number to query a range-based section 112 of database 108. For example, SLF 104 compares the subscriber identifier with all of the ranges listed in section 110 to determine if the subscriber identifier falls within a particular range.
In block 416, a determination as to whether the subscriber identifier matches or falls within a particular range listed in section 110. If a match is found, then method 400 continues to block 420. If a match is not found, then method 400 proceeds to block 418, where predefined default HSS identification data is sent to I-CSCF 102. Alternatively, an error message may be sent to I- CSCF 102 indicating that a serving HSS cannot be found in either section 110 or section 112.
In block 420, the serving HSS identification data is obtained. In one embodiment, the SLF 104 acquires the serving HSS identification data associated with the E.164 number from database 108.
In block 422, the serving HSS identification data (e.g., HSS identifier) is sent to the querying entity. In one embodiment, after finding a match from either section 110 or section 112, SLF 104 transmits the HSS identification data associated with the E.164 number to I-CSCF 102 via a response message 325.
In block 424, the serving HSS is queried. In one embodiment, I-CSCF
102 uses the HSS identification data to query the appropriate HSS of HSS
106i...n to obtain the identity of a serving S-CSCF. The method 400 then ends.
In yet another embodiment, it may be desirable for an ENUM translation (i.e., E.164-to-URl translation) to be performed prior to performing SLF processing. In this case, an SLF function of the present subject matter is adapted to query an ENUM function prior to performing SLF processing. For example, an SLF function may receive a query message from a CSCF node that includes a numeric subscriber identifier (e.g., E.164 formatted telephone number). The SLF is adapted to generate an ENUM query that includes the numeric subscriber identifier, and transmit the query to an ENUM function. The SLF receives an ENUM response message, which includes a subscriber URI, from the ENUM function and is adapted to use perform SLF processing (such as that described previously in this disclosure) using the returned subscriber URI.
As described above, the present subject matter relates to various methods, systems, and computer program products for identifying a serving HSS in a communications network. For example, by employing the range- based and exceptions-based data hierarchy, the present subject matter is able to facilitate the storage of data in a highly efficient manner. Thus, more data may be stored in a fewer number of entries in a database structure. Similarly, by using the associated two-stage lookup procedure, high-speed data searches for identifying a subscriber's serving HSS in an IMS network may be realized.
It will be understood that various details of the subject matter described herein may be changed without departing from the scope of the subject matter described herein. Furthermore, the foregoing description is for the purpose of illustration only, and not for the purpose of limitation, as the subject matter described herein is defined by the claims as set forth hereinafter.
Claims
1. A method for identifying a serving home subscriber server (HSS) in a communications network, comprising: obtaining a subscriber identifier from a message; accessing an exceptions-based data structure contained in a database to locate an exceptions-based database entry associated with the subscriber identifier; accessing a range-based data structure contained in the database to locate a range-based database entry associated with the subscriber identifier if the exceptions-based data structure does not contain the exceptions-based database entry; and acquiring serving HSS identification data corresponding to the located database entry.
2. The method of claim 1 wherein the message comprises a query message requesting the serving HSS data associated with the subscriber identifier.
3. The method of claim 2 wherein the query message is sent by an interrogating call session control function (I-CSCF).
4. The method of claim 3 comprising providing the serving HSS data to the I-CSCF.
5. The method of claim 4 comprising querying an HSS indicated in the serving HSS data to obtain serving call session control function (S-CSCF) data associated with the subscriber identifier.
6. The method of claim 1 wherein the subscriber identifier comprises at least one of a subscriber uniform resource identifier (URI) and a telephone number.
7. The method of claim 1 wherein at least one entry of the range-based data structure specifies a numeric range.
8. The method of claim 1 wherein at least one entry of the range-based data structure specifies an alphabetic range.
9. The method of claim 1 wherein at least one entry of the range-based data structure specifies an alphanumeric range.
10. The method of claim 1 wherein at least one entry in the exceptions- based data structure is indexed by a subscriber identifier within a range corresponding to an entry in the range-based data structure but includes different serving HSS information from the entry in the range-based data structure.
11. The method of claim 1 wherein at least one entry in the exceptions- based data structure is indexed by a subscriber identifier that is outside of all of the ranges corresponding to entries in the range-based data structure.
12. The method of claim 1 wherein obtaining a subscriber identifier comprises initiating a reverse E.164 numbering (ENUM) lookup and obtaining a reverse ENUM response containing an E.164 subscriber number that is used as the subscriber identifier.
13. The method of claim 1 wherein obtaining a subscriber identifier comprises initiating an ENUM lookup and obtaining an ENUM response containing a URI that is used as the subscriber identifier.
14. A computer-readable medium having stored thereon a data structure for associating subscriber identifiers with IP Multimedia Subsystem (IMS) home subscription servers (HSSs), comprising:
(a) a range-based data structure that associates serving HSSs with ranges of subscriber identifier values; and (b) an exceptions-based data structure that associates serving HSSs with individual subscriber identifier values, the exceptions-based data structure including entries that are exceptions to entries in the range-based data structure.
15. The computer-readable medium of claim 14 wherein the ranges of subscriber identifier values include a range comprising numeric values.
16. The computer-readable medium of claim 14 wherein the ranges of subscriber identifier values include a range comprising alphabetic values.
17. The computer-readable medium of claim 14 wherein the ranges of subscriber identifier values include a range comprising alphanumeric values.
18. The computer-readable medium of claim 14 wherein at least one entry in the exceptions-based data structure is indexed by a subscriber identifier within a range corresponding to an entry in the range-based data structure but includes different serving HSS information from the entry in the range-based data structure.
19. The computer-readable medium of claim 14 wherein at least one entry in the exceptions-based data structure is indexed by a subscriber identifier that is outside of the ranges of subscriber identifier values.
20. A system for identifying a serving home subscriber server (HSS) in a communications network, comprising: a database including a range-based data structure that includes range- based entries corresponding to subscriber identifier ranges and serving HSS data respectively associated with the range-based entries and an exceptions- based data structure that includes exceptions-based entries corresponding to subscriber identifiers that indicate exceptions to the entries corresponding to the subscriber identifier ranges and serving HSS data respectively associated with the exceptions-based entries; and a subscriber locator function (SLF) for accessing the exceptions-based data structure to locate an exceptions-based entry associated with a subscriber identifier, accessing the range-based data structure to locate a range-based database entry associated with the subscriber identifier if the exceptions-based data structure does not contain the exceptions-based database entry, and acquiring serving HSS data corresponding to the located database entry.
21. The system of claim 20 comprising a requesting interrogating call session control function (I-CSCF), wherein the SLF is adapted to provide the serving HSS data to the requesting I-CSCF.
22. The system of claim 21 wherein the I-CSCF is adapted to query an HSS indicated in the serving HSS data to obtain serving call session control function (S-CSCF) data associated with the subscriber identifier.
23. The system of claim 20 wherein the subscriber identifier comprises at least one of a subscriber uniform resource identifier (URI) and a telephone number.
24. The system of claim 20 wherein the entries of the range-based data structure include ranges comprising numeric values.
25. The system of claim 20 wherein the entries of the range-based data structure include ranges comprising alphabetic values.
26. The system of claim 20 wherein the entries of the range-based data structure include ranges comprising alphanumeric values.
27. The system of claim 20 wherein at least one entry in the exceptions- based data structure is indexed by a subscriber identifier within a range corresponding to an entry in the range-based data structure but includes different serving HSS information from the entry in the range-based data structure.
28. The system of claim 20 wherein at least one entry in the exceptions- based data structure is indexed by a subscriber identifier that is outside of all of the ranges corresponding to entries in the range-based data structure.
29. The system of claim 20 wherein the SLF is adapted to initiate a reverse E.164 number (ENUM) lookup and to obtain a reverse ENUM response containing an E.164 subscriber number that is used as the subscriber identifier.
30. The system of claim 20 wherein the SLF is adapted to initiate an ENUM lookup and to obtain an ENUM. response containing a URI that is used as the subscriber identifier.
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Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7787445B2 (en) | 2006-07-20 | 2010-08-31 | Tekelec | Methods, systems, and computer program products for routing and processing ENUM queries |
US7848767B2 (en) | 2002-10-15 | 2010-12-07 | Tekelec | Methods and systems for migrating between application layer mobile signaling protocols |
US7889716B2 (en) | 2005-12-01 | 2011-02-15 | Tekelec | Methods, systems, and computer program products for using an E.164 number (ENUM) database for message service message routing resolution among 2G and subsequent generation network systems |
US7916857B2 (en) | 2006-02-15 | 2011-03-29 | Tekelec | Methods, systems, and computer readable media for selectively processing or redirecting signaling connection control part (SCCP) messages |
US8184798B2 (en) | 2006-06-13 | 2012-05-22 | Tekelec | Methods, systems and computer program products for accessing number portability (NP) and E.164 number (ENUM) data using a common NP/ENUM data locator structure |
US8254551B2 (en) | 2006-12-07 | 2012-08-28 | Tekelec, Inc. | Methods, systems, and computer program products for providing quality of service using E.164 number mapping (ENUM) data in a communications network |
US8452325B2 (en) | 2009-05-11 | 2013-05-28 | Tekelec, Inc. | Methods, systems, and computer readable media for providing scalable number portability (NP) home location register (HLR) |
US8538000B2 (en) | 2007-08-10 | 2013-09-17 | Tekelec, Inc. | Methods, systems, and computer program products for performing message deposit transaction screening |
US8594679B2 (en) | 2008-03-07 | 2013-11-26 | Tekelec Global, Inc. | Methods, systems, and computer readable media for routing a message service message through a communications network |
US8613073B2 (en) | 2009-10-16 | 2013-12-17 | Tekelec, Inc. | Methods, systems, and computer readable media for providing diameter signaling router with firewall functionality |
US8644355B2 (en) | 2010-12-23 | 2014-02-04 | Tekelec, Inc. | Methods, systems, and computer readable media for modifying a diameter signaling message directed to a charging function node |
US8750292B2 (en) | 2010-02-25 | 2014-06-10 | Tekelec, Inc. | Systems, methods, and computer readable media for using a signaling message routing node to provide backup subscriber information management service |
US8831016B2 (en) | 2011-03-18 | 2014-09-09 | Tekelec, Inc. | Methods, systems, and computer readable media for configurable diameter address resolution |
US8855654B2 (en) | 2013-01-28 | 2014-10-07 | Tekelec Global, Inc. | Methods, systems, and computer readable media for tracking and communicating long term evolution (LTE) handset communication capability |
US9021014B2 (en) | 2009-03-25 | 2015-04-28 | Tekelec, Inc. | Methods, systems, and computer readable media for providing home subscriber server (HSS) proxy |
US9100796B2 (en) | 2011-12-15 | 2015-08-04 | Tekelec, Inc. | Methods, systems, and computer readable media for seamless roaming between diameter and non-diameter networks |
US9313759B2 (en) | 2009-10-16 | 2016-04-12 | Tekelec, Inc. | Methods, systems, and computer readable media for providing triggerless equipment identity register (EIR) service in a diameter network |
US9584959B2 (en) | 2008-11-24 | 2017-02-28 | Tekelec Global, Inc. | Systems, methods, and computer readable media for location-sensitive called-party number translation in a telecommunications network |
US9635526B2 (en) | 2013-03-15 | 2017-04-25 | Tekelec, Inc. | Methods, systems, and computer readable media for utilizing a diameter proxy agent to communicate short message service (SMS) messages |
Families Citing this family (33)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2008052004A1 (en) | 2006-10-23 | 2008-05-02 | T-Mobile Usa, Inc. | System and method for managing access point functionality and configuration |
US20110060771A1 (en) * | 2007-02-21 | 2011-03-10 | Miguel Angel Monjas Llorente | Method And Apparatuses For Handling Storage Of User Data In 3G Digital Cellular Telecommunication Systems |
EP2061212B1 (en) | 2007-11-13 | 2018-06-20 | Cellular Communications Equipment Llc | Method, apparatus and program product for merging communication sessions in an IMS |
US8885635B2 (en) * | 2008-07-17 | 2014-11-11 | T-Mobile Usa, Inc. | System and method for selectively provisioning telecommunications services between an access point and a telecommunications network using a subscriber identifier |
US8619545B2 (en) * | 2008-07-17 | 2013-12-31 | T-Mobile Usa, Inc. | System and method for selectively provisioning telecommunications services between an access point and a telecommunications network based on landline telephone detection |
US8953620B2 (en) * | 2008-07-17 | 2015-02-10 | T-Mobile Usa, Inc. | System and method for selectively provisioning telecommunications services between an access point and a telecommunications network using a subscriber identifier |
US8320344B2 (en) | 2009-02-27 | 2012-11-27 | T-Mobile Usa, Inc. | System and method for provisioning telecommunications services between an access point and a telecommunications network and providing a missing information notification |
US8484457B2 (en) * | 2009-03-10 | 2013-07-09 | T-Mobile Usa, Inc. | Method of securely pairing devices with an access point for an IP-based wireless network |
MX2012001096A (en) * | 2009-07-31 | 2012-02-28 | Ericsson Telefon Ab L M | Locating subscription data in a multi-tenant network. |
US8750126B2 (en) | 2009-10-16 | 2014-06-10 | Tekelec, Inc. | Methods, systems, and computer readable media for multi-interface monitoring and correlation of diameter signaling information |
IN2012CN06918A (en) * | 2010-02-12 | 2015-05-29 | Tekelec Inc | |
EP2534811B1 (en) | 2010-02-12 | 2018-08-08 | Tekelec, Inc. | Methods, systems, and computer readable media for diameter network management |
EP2666263B1 (en) | 2011-01-21 | 2019-07-24 | Tekelec, Inc. | Methods, systems, and computer readable media for screening diameter messages within a diameter signaling router (dsr) having a distributed message processor architecture |
CN103493522B (en) | 2011-03-03 | 2016-12-07 | 泰科来股份有限公司 | For enriching the method for Diameter signaling message, system and computer-readable medium |
JP4978976B1 (en) * | 2011-10-13 | 2012-07-18 | インベスター・ネットワークス株式会社 | Shareholder management device, shareholder management method and program |
JP5809048B2 (en) * | 2011-12-26 | 2015-11-10 | Kddi株式会社 | Terminal authentication method based on switching of IP subsystem network and proxy subscriber information server |
US8730951B2 (en) * | 2012-06-01 | 2014-05-20 | At&T Intellectual Property I, Lp | Apparatus and methods for origination of voice and messaging communication in a network |
US9647980B2 (en) | 2012-06-07 | 2017-05-09 | At&T Intellectual Property I, L.P. | Apparatus and methods for a scalable communications network |
US9015327B2 (en) | 2012-06-11 | 2015-04-21 | At&T Intellectual Property I, Lp | Apparatus and methods for flexible communicatons in a network |
US9148388B2 (en) | 2013-05-23 | 2015-09-29 | Tekelec, Inc. | Methods, systems, and computer readable media for performing enhanced service routing |
US9537775B2 (en) | 2013-09-23 | 2017-01-03 | Oracle International Corporation | Methods, systems, and computer readable media for diameter load and overload information and virtualization |
US9888001B2 (en) | 2014-01-28 | 2018-02-06 | Oracle International Corporation | Methods, systems, and computer readable media for negotiating diameter capabilities |
CN105610881B9 (en) * | 2014-11-06 | 2019-06-21 | 阿里巴巴集团控股有限公司 | Distributed cache range query method, device and system |
US10027760B2 (en) | 2015-05-22 | 2018-07-17 | Oracle International Corporation | Methods, systems, and computer readable media for short and long term policy and charging rules function (PCRF) load balancing |
US10951519B2 (en) | 2015-06-17 | 2021-03-16 | Oracle International Corporation | Methods, systems, and computer readable media for multi-protocol stateful routing |
US10117127B2 (en) | 2015-07-08 | 2018-10-30 | Oracle International Corporation | Methods, systems, and computer readable media for communicating radio access network congestion status information for large numbers of users |
US9923984B2 (en) | 2015-10-30 | 2018-03-20 | Oracle International Corporation | Methods, systems, and computer readable media for remote authentication dial in user service (RADIUS) message loop detection and mitigation |
US9668135B2 (en) | 2015-08-14 | 2017-05-30 | Oracle International Corporation | Methods, systems, and computer readable media for providing access network signaling protocol interworking for user authentication |
US9668134B2 (en) | 2015-08-14 | 2017-05-30 | Oracle International Corporation | Methods, systems, and computer readable media for providing access network protocol interworking and authentication proxying |
US10084755B2 (en) | 2015-08-14 | 2018-09-25 | Oracle International Corporation | Methods, systems, and computer readable media for remote authentication dial in user service (RADIUS) proxy and diameter agent address resolution |
US10554661B2 (en) | 2015-08-14 | 2020-02-04 | Oracle International Corporation | Methods, systems, and computer readable media for providing access network session correlation for policy control |
CN112203272B (en) * | 2019-07-08 | 2023-09-08 | 中国移动通信集团浙江有限公司 | Abnormality diagnosis method, device and computing equipment for moving HSS (home subscriber server) user |
US11283883B1 (en) | 2020-11-09 | 2022-03-22 | Oracle International Corporation | Methods, systems, and computer readable media for providing optimized binding support function (BSF) packet data unit (PDU) session binding discovery responses |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20060002400A1 (en) | 2004-07-01 | 2006-01-05 | Brad Kenyon | Telecommunications system and method for forwarding messages based upon subscriber identification information |
US20060136557A1 (en) | 2004-12-17 | 2006-06-22 | Tekelec | Methods, systems, and computer program products for clustering and communicating between Internet protocol multimedia subsystem (IMS) entities |
US20070115934A1 (en) | 2005-11-22 | 2007-05-24 | Samsung Electronics Co., Ltd. | Method and system for locating subscriber data in an IP multimedia subsystem |
Family Cites Families (165)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4310727A (en) | 1980-02-04 | 1982-01-12 | Bell Telephone Laboratories, Incorporated | Method of processing special service telephone calls |
US4754479A (en) | 1986-09-17 | 1988-06-28 | American Telephone And Telegraph Company | Station number portability |
US5089954A (en) | 1988-08-08 | 1992-02-18 | Bell Communications Research, Inc. | Method for handling conversational transactions in a distributed processing environment |
DE69027412T2 (en) | 1989-06-30 | 1997-01-30 | Nippon Telegraph & Telephone | PERSONAL TRANSMISSION SYSTEM |
US5210787A (en) | 1991-02-05 | 1993-05-11 | Telefonaktiebolaget L M Ericsson | Subscriber interrogation point |
FI87963C (en) | 1991-06-06 | 1993-03-10 | Telenokia Oy | FOERFARANDE FOER BILDANDE AV ETT ANKOMMANDE SAMTAL TILL EN RADIOTELEFON I ETT CELLRADIOTELEFONSYSTEM |
US5237604A (en) | 1991-06-28 | 1993-08-17 | At&T Bell Laboratories | Arrangement for serving a telephone office code from two switching systems |
US5502726A (en) | 1992-01-31 | 1996-03-26 | Nellcor Incorporated | Serial layered medical network |
US5247571A (en) | 1992-02-28 | 1993-09-21 | Bell Atlantic Network Services, Inc. | Area wide centrex |
NL9201090A (en) | 1992-06-19 | 1994-01-17 | Nederland Ptt | METHOD FOR MANAGING USER DATA FROM A USER MOVABLE FROM A BASIC WORKPLACE IN A TELECOMMUNICATIONS NETWORK AT ANOTHER POWER PLANT TO ANOTHER WORKPLACE RELATED TO ANOTHER POWER PLANT. |
EP0614322B1 (en) | 1993-01-21 | 2000-04-05 | AT&T Corp. | Directory structure for large scale telecommunications network allowing location of roaming mobile subscribers |
JPH06245240A (en) | 1993-02-12 | 1994-09-02 | Nec Corp | System for connecting public line and private line |
SE501088C2 (en) | 1993-03-31 | 1994-11-07 | Ericsson Telefon Ab L M | Restoration of a home database in mobile radio systems |
US5430719A (en) | 1993-06-28 | 1995-07-04 | Bellsouth Corporation | Mediation of open advanced intelligent network interface by shared execution environment |
US5481603A (en) | 1993-09-28 | 1996-01-02 | At&T Corp. | Intelligent call processing based upon complete identification of calling station |
AU678310B2 (en) | 1993-10-26 | 1997-05-22 | Telefonaktiebolaget Lm Ericsson (Publ) | A system and method for routing messages in radio communication systems |
US5504804A (en) | 1994-01-19 | 1996-04-02 | Telefonaktiebolaget Lm Ericsson | Providing individual subscriber services in a cellular mobile communications network |
EP0666700A1 (en) | 1994-02-03 | 1995-08-09 | AT&T Corp. | Virtual mobile location area |
US5526400A (en) | 1994-04-01 | 1996-06-11 | Telefonaktiebolaget Lm Ericsson | System for routing calls to mobile subscribers |
US5457736A (en) | 1994-04-12 | 1995-10-10 | U S West Technologies, Inc. | System and method for providing microcellular personal communications services (PCS) utilizing embedded switches |
GB9420098D0 (en) | 1994-10-05 | 1994-11-16 | Orange Personal Comm Serv Ltd | Telecommunication system |
US5579372A (en) | 1994-12-12 | 1996-11-26 | Telefonaktiebolaget Lm Ericsson | Flow control method for short message service - busy subscriber |
US5623532A (en) | 1995-01-12 | 1997-04-22 | Telefonaktiebolaget Lm Ericsson | Hardware and data redundant architecture for nodes in a communications system |
US5706286A (en) | 1995-04-19 | 1998-01-06 | Mci Communications Corporation | SS7 gateway |
US5978464A (en) | 1995-06-30 | 1999-11-02 | Siemens Information And Communications Networks, Inc. | Method for updating a local switch internal database in system having different service providers within a common numbering plan area |
US5822694A (en) | 1995-06-30 | 1998-10-13 | Motorala, Inc. | Method and apparatus for providing communication services to a communication unit based on registration type |
US5854982A (en) | 1995-08-21 | 1998-12-29 | Motorola, Inc. | Communication system architecture and method of routing therefor |
US5819178A (en) | 1996-01-05 | 1998-10-06 | Northern Telecom Limited | Methods and apparatus for accessing subscriber information in interconnected wireless telecommunications networks |
AU1865197A (en) | 1996-03-08 | 1997-09-22 | Stentor Resource Centre Inc. | Providing number portability by means of enhanced routing tables |
US6014557A (en) | 1996-03-14 | 2000-01-11 | Bellsouth Intellectual Property Corporation | Apparatus and methods for providing wireless system fraud and visibility data |
US5878347A (en) | 1996-03-26 | 1999-03-02 | Ericsson, Inc. | Routing a data signal to a mobile station within a telecommunications network |
US5953662A (en) | 1996-04-30 | 1999-09-14 | Ericsson, Inc. | Dual home location registers in a mobile radio system |
US5711002A (en) | 1996-05-14 | 1998-01-20 | Telefonaktiebolaget Lm Ericsson (Publ) | Transfer-to c-number message triggering of a routing request message within a cellular telephone network |
US5689548A (en) | 1996-05-21 | 1997-11-18 | Ericsson, Inc. | Emergency call back using MSC numbers |
US5878348A (en) | 1996-05-30 | 1999-03-02 | Telefonaktiebolaget Lm Ericsson (Publ) | System and method for implementing multiple home location registers for a single mobile station in a cellular telecommunications network |
US5890063A (en) | 1996-06-03 | 1999-03-30 | Ericsson Inc. | Downloading of routing numbers to donor switches within a telecommunications network |
GB2314733B (en) | 1996-06-27 | 2001-01-17 | Northern Telecom Ltd | Cellular communications system |
US6236365B1 (en) | 1996-09-09 | 2001-05-22 | Tracbeam, Llc | Location of a mobile station using a plurality of commercial wireless infrastructures |
US5832382A (en) | 1996-09-16 | 1998-11-03 | Ericsson Inc. | Optimized routing of mobile calls within a telecommunications network |
US5953663A (en) | 1996-09-25 | 1999-09-14 | Ericsson Inc. | Rerouting an incoming call to a ported telecommunications terminal |
US6205210B1 (en) | 1996-11-04 | 2001-03-20 | Nortel Networks Limited | Method for improved automatic message accounting in telephony |
US6138016A (en) | 1996-12-04 | 2000-10-24 | Nortel Networks Corporation | Distributing location tracking functionality in wireless telephone systems |
US6011803A (en) | 1997-01-13 | 2000-01-04 | Lucent Technologies Inc. | Distributed-protocol server |
US5983217A (en) | 1997-03-21 | 1999-11-09 | At&T Corp | Apparatus and method for querying replicated databases |
US6018657A (en) | 1997-05-05 | 2000-01-25 | Highwaymaster Communications, Inc. | System and method for communicating a message using a cellular telephone network |
NL1006862C2 (en) | 1997-08-27 | 1999-03-17 | Libertel Bv | Method and system for handling calls for communication equipment with a subscriber number, which has been taken from a first operator to a second operator, particularly suitable for use in mobile communication systems. |
US6148204A (en) | 1997-09-12 | 2000-11-14 | Motorola, Inc. | Method and apparatus for a distributed location register |
US6411632B2 (en) | 1997-09-16 | 2002-06-25 | Telefonaktiebolaget Lm Ericsson (Publ) | Network hub for interconnecting a wireless office environment with a public cellular telephone network |
US6138023A (en) | 1997-09-23 | 2000-10-24 | Lucent Technologies, Inc. | Method for porting a directory number from one wireless service provider to another |
USH1895H (en) | 1997-09-26 | 2000-10-03 | Dsc/Celcore, Inc. | Application provider and method for communication |
US6161017A (en) | 1997-10-07 | 2000-12-12 | Telefonaktiebolaget Lm Ericsson | Method of routing calls to portable numbers in a radio telecommunications network |
US6049714A (en) | 1997-10-31 | 2000-04-11 | Ericsson, Inc. | Implementing number portability using a flexible numbering register and an interwork link register |
US6006098A (en) | 1997-11-06 | 1999-12-21 | Alcatel Usa Sourcing, L.P. | System and method for application location register routing in a telecommunications network |
US6505046B1 (en) | 1997-11-19 | 2003-01-07 | Nortel Networks Limited | Method and apparatus for distributing location-based messages in a wireless communication network |
US6115463A (en) | 1997-11-21 | 2000-09-05 | Telefonaktiebolaget Lm Ericsson (Publ) | Migration of subscriber data between home location registers of a telecommunications system |
US6138017A (en) | 1997-12-08 | 2000-10-24 | Nortel Networks Limited | Cellular communications system |
US6137806A (en) | 1997-12-22 | 2000-10-24 | Northern Telecom Limited | Intelligent network with alternate routing of signalling messages, and method of operating such network |
US6263212B1 (en) | 1998-02-17 | 2001-07-17 | Alcatel Usa Sourcing, L.P. | Short message service center |
US6240296B1 (en) | 1998-03-10 | 2001-05-29 | Verizon Laboratories Inc. | Method and apparatus for supporting short message services in a wireless number portability environment |
US6192242B1 (en) | 1998-03-16 | 2001-02-20 | Lucent Technologies Inc. | Method for poring a mobile directory number from one wireless service provider to another |
US6308075B1 (en) | 1998-05-04 | 2001-10-23 | Adc Telecommunications, Inc. | Method and apparatus for routing short messages |
US6463055B1 (en) | 1998-06-01 | 2002-10-08 | Telefonaktiebolaget L M Ericsson (Publ) | Integrated radio telecommunications network and method of interworking an ANSI-41 network and the general packet radio service (GPRS) |
US6539077B1 (en) | 1998-06-05 | 2003-03-25 | Netnumber.Com, Inc. | Method and apparatus for correlating a unique identifier, such as a PSTN telephone number, to an internet address to enable communications over the internet |
US6434144B1 (en) | 1998-07-06 | 2002-08-13 | Aleksey Romanov | Multi-level table lookup |
WO2000016583A1 (en) | 1998-09-14 | 2000-03-23 | Curt Wong | Method for providing number portability in a telecommunications network |
US6560216B1 (en) | 1998-09-17 | 2003-05-06 | Openwave Systems Inc. | Data network computing device call processing |
KR100289333B1 (en) | 1998-12-02 | 2001-05-02 | 정선종 | How to handle translation of portability title for number portability |
US6377674B1 (en) | 1998-12-30 | 2002-04-23 | At&T Corp. | Method for global title translation processing |
US6950441B1 (en) | 1999-03-30 | 2005-09-27 | Sonus Networks, Inc. | System and method to internetwork telecommunication networks of different protocols |
US6639981B1 (en) | 1999-04-05 | 2003-10-28 | Tekelec | Methods and systems for routing signaling messages associated with ported subscribers in a communications network |
AU4424100A (en) | 1999-04-12 | 2000-11-14 | Telefonaktiebolaget Lm Ericsson (Publ) | Support for features associated with a subscriber in networks with a gateway location register and a visitor location register |
US6424832B1 (en) | 1999-04-29 | 2002-07-23 | Telefonaktiebolaget L M Ericsson (Publ) | Method of supporting functionality for roamer port calls in a radio telecomminications network in which number portability is implemented |
US6515997B1 (en) | 1999-05-17 | 2003-02-04 | Ericsson Inc. | Method and system for automatic configuration of a gateway translation function |
US6560456B1 (en) | 1999-05-24 | 2003-05-06 | Openwave Systems, Inc. | System and method for providing subscriber-initiated information over the short message service (SMS) or a microbrowser |
US6594258B1 (en) | 1999-05-26 | 2003-07-15 | Ericsson Inc. | Integrated home location register and IP-SS7 gateway |
US6683881B1 (en) | 1999-05-28 | 2004-01-27 | Ericsson Inc. | Interface between an SS7 gateway and an IP network |
US6611516B1 (en) | 1999-06-21 | 2003-08-26 | Nokia Telecommunications Oyj | Short message service support over a packet-switched telephony network |
JP2001086546A (en) | 1999-08-23 | 2001-03-30 | Swisscom Ag | Signal transmitting method for electric communication network and converting device |
IE20000748A1 (en) | 1999-09-17 | 2001-04-04 | Markport Ltd | A short message gateway |
US6836477B1 (en) | 1999-12-23 | 2004-12-28 | Tekelec | Methods and systems for routing messages in a communications network |
US6662017B2 (en) | 1999-12-23 | 2003-12-09 | Tekelec | Methods and systems for routing messages associated with ported subscribers in a mobile communications network |
US7092505B2 (en) | 1999-12-23 | 2006-08-15 | Tekelec | Methods and systems for universal, automatic service selection in a telecommunications signaling network |
AU2001227879A1 (en) | 2000-01-21 | 2001-07-31 | Tekelec | Methods and systems for routing messages associated with ported subscribers in amobile communications network |
SE518840C2 (en) | 2000-04-19 | 2002-11-26 | Microsoft Corp | Procedure for providing access to data |
US6647113B2 (en) | 2000-05-05 | 2003-11-11 | Tekelec | Methods and systems for providing universal triggerless number portability |
US6577723B1 (en) | 2000-07-13 | 2003-06-10 | At&T Wireless Service, Inc. | Application of TCAP criteria in SCCP routing |
EP1303994B1 (en) | 2000-07-14 | 2005-09-28 | Tekelec | Triggerless screening services |
US6917612B2 (en) | 2000-09-01 | 2005-07-12 | Telefonaktiebolaged L M Ericsson | System and method for address resolution in internet protocol (IP)-based networks |
US6693897B1 (en) | 2000-11-10 | 2004-02-17 | Sbc Technology Resources, Inc. | Method and system of screening and control of telephone calls while using a packet-switched data network |
US8467502B2 (en) | 2001-02-27 | 2013-06-18 | Verizon Data Services Llc | Interactive assistant for managing telephone communications |
US20020147845A1 (en) * | 2001-03-06 | 2002-10-10 | Juan-Antonio Sanchez-Herrero | Flexible user distribution between user's serving entities |
US6731926B1 (en) | 2001-04-02 | 2004-05-04 | Bellsouth Intellectual Property Corporation | System and method for delivering a message waiting indicator message to a wireless system |
US6934534B1 (en) | 2001-04-25 | 2005-08-23 | At&T Corp. | Common mobility management protocol for multimedia applications, systems and services |
US6795701B1 (en) | 2002-05-31 | 2004-09-21 | Transat Technologies, Inc. | Adaptable radio link for wireless communication networks |
CA2445768C (en) | 2001-05-11 | 2012-10-23 | Nokia Corporation | Mobile instant messaging and presence service |
US20020176382A1 (en) | 2001-05-24 | 2002-11-28 | Telefonaktiebolaget Lm Ericsson (Publ) | Method and system for integration of second generation and third generation wireless networks |
US7010002B2 (en) | 2001-06-14 | 2006-03-07 | At&T Corp. | Broadband network with enterprise wireless communication method for residential and business environment |
AU2002345899A1 (en) | 2001-06-26 | 2003-03-03 | Versada Networks, Inc. | Transcoding sms-based streamed messages to sip-based ip signals in wireless and wireline networks |
US7027582B2 (en) | 2001-07-06 | 2006-04-11 | Telefonaktiebolaget L M Ericsson (Publ) | Method and apparatus for resolving an entity identifier into an internet address using a domain name system (DNS) server and an entity identifier portability database |
US6871070B2 (en) | 2001-07-31 | 2005-03-22 | Lucent Technologies Inc. | Communication system for providing roaming between an internet protocol multimedia system and a circuit-switched domain |
US7039037B2 (en) | 2001-08-20 | 2006-05-02 | Wang Jiwei R | Method and apparatus for providing service selection, redirection and managing of subscriber access to multiple WAP (Wireless Application Protocol) gateways simultaneously |
US6658260B2 (en) | 2001-09-05 | 2003-12-02 | Telecommunication Systems, Inc. | Inter-carrier short messaging service providing phone number only experience |
US7221951B2 (en) | 2001-09-17 | 2007-05-22 | Level Z, L.L.C. | Method and system for short message service exchange and teleconferencing |
US6775737B1 (en) | 2001-10-09 | 2004-08-10 | Cisco Technology, Inc. | Method and apparatus for allocating and using range identifiers as input values to content-addressable memories |
US7079524B2 (en) | 2001-10-11 | 2006-07-18 | Tekelec | Methods and systems for off-loading a-interface short message service (SMS) message traffic in a wireless communications network |
US6839421B2 (en) | 2001-10-29 | 2005-01-04 | Telefonaktiebolaget Lm Ericsson (Publ) | Method and apparatus to carry out resolution of entity identifier in circuit-switched networks by using a domain name system |
EP1309207A1 (en) | 2001-11-06 | 2003-05-07 | Telefonaktiebolaget L M Ericsson (Publ) | Number portability resolving apparatus |
US7657253B2 (en) | 2001-11-16 | 2010-02-02 | At&T Mobility Ii Llc | System and method for providing message notification |
US20030109271A1 (en) | 2001-11-16 | 2003-06-12 | Lewis John Ervin | Telecommunications system messaging infrastructure |
US20030193967A1 (en) | 2001-12-31 | 2003-10-16 | Gregg Fenton | Method, apparatus and system for processing multimedia messages |
US7274683B2 (en) | 2002-01-07 | 2007-09-25 | Motorola, Inc. | Method and apparatus for a telecommunications network to communicate using an internet protocol |
US6993038B2 (en) | 2002-06-11 | 2006-01-31 | Tekelec | Methods and systems for automatically provisioning address translation information in a mobile services node address translation database |
FR2841072A1 (en) | 2002-06-14 | 2003-12-19 | France Telecom | System for consulting and updating DNS servers and LDAP directories, includes using protocol management unit for searching IP address of server hosting first database and transmitting request for reading and updating record to server |
US7881308B2 (en) | 2002-06-18 | 2011-02-01 | Hewlett-Packard Development Company, L.P. | Method and system for providing telecommunication subscriber services without provisioning or maintenance |
US7320026B2 (en) | 2002-06-27 | 2008-01-15 | At&T Bls Intellectual Property, Inc. | Intersystem messaging using ENUM standard |
SE0202059D0 (en) | 2002-07-02 | 2002-07-02 | Ericsson Telefon Ab L M | Method and apparatus for routing a service request in a telecommunication system |
WO2004008786A1 (en) | 2002-07-16 | 2004-01-22 | Nokia Corporation | Optimized routing between communication networks |
KR100501157B1 (en) | 2002-08-26 | 2005-07-18 | 에스케이 텔레콤주식회사 | Address Process Method For Short Message Service Center In WCDMA Network |
FR2845235A1 (en) | 2002-10-01 | 2004-04-02 | Cegetel | Instantaneous voice messaging procedure produces multimedia message file with calling user data and read request field with deletion from server after reading |
US7397773B2 (en) | 2002-10-22 | 2008-07-08 | Qualcomm Incorporated | GSM cell broadcast SMS message transmission in CDMA communication systems |
KR100464319B1 (en) | 2002-11-06 | 2004-12-31 | 삼성전자주식회사 | Network architecture for use in next mobile communication system and data communication method using the same |
US20040142707A1 (en) | 2003-01-17 | 2004-07-22 | David Midkiff | Inter-carrier short text message delivery |
GB0306830D0 (en) * | 2003-03-25 | 2003-04-30 | Nokia Corp | Routing messages |
KR20030040291A (en) | 2003-04-16 | 2003-05-22 | 허세진 | Method, Program, Media, and Device to register ENUM name, resolve ENUM name, manage and restart ENUM name server |
EP1623584B1 (en) | 2003-05-09 | 2017-07-19 | Tekelec Global, Inc. | Method and apparatus for providing of short message gateway functionality in a telecommunications network |
FI20030797A0 (en) | 2003-05-27 | 2003-05-27 | Nokia Corp | Improving Database Performance on a Name Server System |
US7860498B2 (en) | 2003-12-01 | 2010-12-28 | Sybase 365, Inc. | System and method for virtual carrier addressing and routing for global short message service |
US8458277B2 (en) | 2004-01-22 | 2013-06-04 | Verizon Business Global Llc | Method and system for providing universal relay services |
KR100823128B1 (en) * | 2004-06-30 | 2008-04-21 | 삼성전자주식회사 | Apparatus and method of information management in multimedia service providing system |
DE102004035084A1 (en) * | 2004-07-20 | 2006-02-16 | Elmotec Statomat Vertriebs Gmbh | Method and device for producing a coil winding for stators or rotors of electrical machines as well as stator or rotor to be produced therewith |
JP4336263B2 (en) | 2004-07-23 | 2009-09-30 | パナソニック株式会社 | IP telephone system, IP telephone apparatus and calling method |
JP4603913B2 (en) | 2004-08-06 | 2010-12-22 | パナソニック株式会社 | IP telephone apparatus and IP telephone system |
US20060034256A1 (en) | 2004-08-13 | 2006-02-16 | Nokia Corporation | System and method for service discovery during connection setup in a wireless environment |
US7170982B2 (en) | 2004-08-26 | 2007-01-30 | Lucent Technologies Inc. | Call authorization and billing message routing capability |
US7298833B2 (en) | 2004-09-29 | 2007-11-20 | Avaya Integrated Cabinet Solutions, Inc. | Wireless device to manage cross-network telecommunication services |
US7453876B2 (en) | 2004-09-30 | 2008-11-18 | Lucent Technologies Inc. | Method and apparatus for providing distributed SLF routing capability in an internet multimedia subsystem (IMS) network |
GB2435587B (en) | 2004-12-13 | 2008-10-01 | Transnexus Inc | Method and system for securely authorizing VOIP interconnections between anonymous peers of VOIP networks |
US20070165554A1 (en) | 2004-12-23 | 2007-07-19 | Agovo Communications Inc. | System, Method and Portable Communication Device |
DE102005009793A1 (en) | 2004-12-30 | 2006-07-13 | Siemens Ag | A method for content-based prioritization of voice messages in a communication system |
US8194640B2 (en) | 2004-12-31 | 2012-06-05 | Genband Us Llc | Voice over IP (VoIP) network infrastructure components and method |
US7702092B2 (en) | 2005-05-02 | 2010-04-20 | At&T Intellectual Property I, L.P. | Communication system and method of routing calls to a terminating end point |
US7953415B2 (en) | 2005-06-03 | 2011-05-31 | Alcatel-Lucent Usa Inc. | Method and system for wireless number portability |
EP1742452A1 (en) | 2005-07-05 | 2007-01-10 | Markport Limited | Spam protection system for voice calls |
US20090103707A1 (en) | 2005-07-28 | 2009-04-23 | Mcgary Faith | System and method for enhanced ENUM applications |
US7975037B2 (en) * | 2005-07-29 | 2011-07-05 | Verizon Patent And Licensing Inc. | Policy engine in an Internet Protocol multimedia subsystem |
US7796578B2 (en) * | 2005-10-05 | 2010-09-14 | Cingular Wireless Ii, Llc | Resolution of IP addresses associated with a telephone number utilizing query flags |
PL1938554T3 (en) | 2005-10-21 | 2010-05-31 | Ericsson Telefon Ab L M | Ims call routing using tel-uris |
US8085757B2 (en) | 2005-11-07 | 2011-12-27 | At&T Intellectual Property I, L.P. | Caller-controlled routing to non-SIP/non-TEL URI destinations for an IMS-based ENUM query |
US7889716B2 (en) | 2005-12-01 | 2011-02-15 | Tekelec | Methods, systems, and computer program products for using an E.164 number (ENUM) database for message service message routing resolution among 2G and subsequent generation network systems |
WO2007092205A2 (en) | 2006-02-06 | 2007-08-16 | Tekelec | Methods, systems, and computer program products for indexing, validating, recovering and consolidating a database indexed by range-bound numeric data |
US20070203909A1 (en) | 2006-02-28 | 2007-08-30 | Tekelec | Methods, systems, and computer program products for indexing, validating, recovering, and consolidating a database indexed by range-bound numeric data |
EP1819125A1 (en) | 2006-02-10 | 2007-08-15 | Siemens S.p.A. | Method and apparatus to deliver precustomized business card multimedia contents through IMS based PLMNs for improving the existing calling line identification service |
US8184798B2 (en) | 2006-06-13 | 2012-05-22 | Tekelec | Methods, systems and computer program products for accessing number portability (NP) and E.164 number (ENUM) data using a common NP/ENUM data locator structure |
CN1968267A (en) * | 2006-06-30 | 2007-05-23 | 华为技术有限公司 | Server positioning function network element and application method thereof |
US7630485B2 (en) | 2006-07-06 | 2009-12-08 | At&T Intellectual Property I, L.P. | Method and system to bypass ENUM to reach a callee via a PSTN or a PLMN |
US7787445B2 (en) | 2006-07-20 | 2010-08-31 | Tekelec | Methods, systems, and computer program products for routing and processing ENUM queries |
US20080065746A1 (en) | 2006-09-07 | 2008-03-13 | Ace*Comm Corporation | Consumer configurable mobile communication web filtering solution |
US8218531B2 (en) * | 2007-04-09 | 2012-07-10 | At&T Intellectual Property I, Lp | System for improving operations in an IMS network |
US9049209B2 (en) * | 2007-05-08 | 2015-06-02 | At&T Intellectual Property I, L.P. | Methods and apparatus to route a communication session in an internet protocol (IP) multimedia subsystem (IMS) network |
US8538000B2 (en) | 2007-08-10 | 2013-09-17 | Tekelec, Inc. | Methods, systems, and computer program products for performing message deposit transaction screening |
US8468267B2 (en) | 2007-12-01 | 2013-06-18 | Alcatel Lucent | IMS diameter router with load balancing |
US8594679B2 (en) | 2008-03-07 | 2013-11-26 | Tekelec Global, Inc. | Methods, systems, and computer readable media for routing a message service message through a communications network |
US7746864B1 (en) | 2008-04-30 | 2010-06-29 | Cello Partnership | System and method for routing inter-carrier short message service or multimedia message service messages |
US8452325B2 (en) | 2009-05-11 | 2013-05-28 | Tekelec, Inc. | Methods, systems, and computer readable media for providing scalable number portability (NP) home location register (HLR) |
CN102656845B (en) | 2009-10-16 | 2015-04-01 | 泰克莱克股份有限公司 | Methods, systems, and computer readable media for providing diameter signaling router with integrated monitoring and/or firewall functionality |
-
2007
- 2007-08-02 US US11/888,907 patent/US7996541B2/en active Active
-
2008
- 2008-06-12 CN CN201611185795.3A patent/CN106454790A/en active Pending
- 2008-06-12 EP EP08770806.1A patent/EP2165557B1/en active Active
- 2008-06-12 WO PCT/US2008/066675 patent/WO2008157213A2/en active Application Filing
- 2008-06-12 CN CN200880103119A patent/CN101855921A/en active Pending
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20060002400A1 (en) | 2004-07-01 | 2006-01-05 | Brad Kenyon | Telecommunications system and method for forwarding messages based upon subscriber identification information |
US20060136557A1 (en) | 2004-12-17 | 2006-06-22 | Tekelec | Methods, systems, and computer program products for clustering and communicating between Internet protocol multimedia subsystem (IMS) entities |
US20070115934A1 (en) | 2005-11-22 | 2007-05-24 | Samsung Electronics Co., Ltd. | Method and system for locating subscriber data in an IP multimedia subsystem |
Non-Patent Citations (2)
Title |
---|
"3 GPP STANDARD; 3GPP TS 23.228, 3RD GENERATION PARTNERSHIP PROJECT (3GPP", 1 June 2007, MOBILE COMPETENCE CENTRE, article "3rd Generation Partnership Project; Technical Specification Group Services and System Aspects; IP Multimedia Subsystem (IMS); Stage 2 (Release 8", pages: 1 - 226 |
See also references of EP2165557A4 |
Cited By (21)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7848767B2 (en) | 2002-10-15 | 2010-12-07 | Tekelec | Methods and systems for migrating between application layer mobile signaling protocols |
US7889716B2 (en) | 2005-12-01 | 2011-02-15 | Tekelec | Methods, systems, and computer program products for using an E.164 number (ENUM) database for message service message routing resolution among 2G and subsequent generation network systems |
US7916857B2 (en) | 2006-02-15 | 2011-03-29 | Tekelec | Methods, systems, and computer readable media for selectively processing or redirecting signaling connection control part (SCCP) messages |
US8184798B2 (en) | 2006-06-13 | 2012-05-22 | Tekelec | Methods, systems and computer program products for accessing number portability (NP) and E.164 number (ENUM) data using a common NP/ENUM data locator structure |
US7787445B2 (en) | 2006-07-20 | 2010-08-31 | Tekelec | Methods, systems, and computer program products for routing and processing ENUM queries |
US8254551B2 (en) | 2006-12-07 | 2012-08-28 | Tekelec, Inc. | Methods, systems, and computer program products for providing quality of service using E.164 number mapping (ENUM) data in a communications network |
US8538000B2 (en) | 2007-08-10 | 2013-09-17 | Tekelec, Inc. | Methods, systems, and computer program products for performing message deposit transaction screening |
US8594679B2 (en) | 2008-03-07 | 2013-11-26 | Tekelec Global, Inc. | Methods, systems, and computer readable media for routing a message service message through a communications network |
US9584959B2 (en) | 2008-11-24 | 2017-02-28 | Tekelec Global, Inc. | Systems, methods, and computer readable media for location-sensitive called-party number translation in a telecommunications network |
US9021014B2 (en) | 2009-03-25 | 2015-04-28 | Tekelec, Inc. | Methods, systems, and computer readable media for providing home subscriber server (HSS) proxy |
US8452325B2 (en) | 2009-05-11 | 2013-05-28 | Tekelec, Inc. | Methods, systems, and computer readable media for providing scalable number portability (NP) home location register (HLR) |
US8958306B2 (en) | 2009-10-16 | 2015-02-17 | Tekelec, Inc. | Methods, systems, and computer readable media for providing diameter signaling router with integrated monitoring functionality |
US8613073B2 (en) | 2009-10-16 | 2013-12-17 | Tekelec, Inc. | Methods, systems, and computer readable media for providing diameter signaling router with firewall functionality |
US9313759B2 (en) | 2009-10-16 | 2016-04-12 | Tekelec, Inc. | Methods, systems, and computer readable media for providing triggerless equipment identity register (EIR) service in a diameter network |
US9647986B2 (en) | 2009-10-16 | 2017-05-09 | Tekelec, Inc. | Methods, systems, and computer readable media for providing diameter signaling router with firewall functionality |
US8750292B2 (en) | 2010-02-25 | 2014-06-10 | Tekelec, Inc. | Systems, methods, and computer readable media for using a signaling message routing node to provide backup subscriber information management service |
US8644355B2 (en) | 2010-12-23 | 2014-02-04 | Tekelec, Inc. | Methods, systems, and computer readable media for modifying a diameter signaling message directed to a charging function node |
US8831016B2 (en) | 2011-03-18 | 2014-09-09 | Tekelec, Inc. | Methods, systems, and computer readable media for configurable diameter address resolution |
US9100796B2 (en) | 2011-12-15 | 2015-08-04 | Tekelec, Inc. | Methods, systems, and computer readable media for seamless roaming between diameter and non-diameter networks |
US8855654B2 (en) | 2013-01-28 | 2014-10-07 | Tekelec Global, Inc. | Methods, systems, and computer readable media for tracking and communicating long term evolution (LTE) handset communication capability |
US9635526B2 (en) | 2013-03-15 | 2017-04-25 | Tekelec, Inc. | Methods, systems, and computer readable media for utilizing a diameter proxy agent to communicate short message service (SMS) messages |
Also Published As
Publication number | Publication date |
---|---|
EP2165557B1 (en) | 2015-05-27 |
US7996541B2 (en) | 2011-08-09 |
EP2165557A2 (en) | 2010-03-24 |
US20080311917A1 (en) | 2008-12-18 |
CN106454790A (en) | 2017-02-22 |
WO2008157213A3 (en) | 2009-03-12 |
CN101855921A (en) | 2010-10-06 |
EP2165557A4 (en) | 2014-01-01 |
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