CN103596230A - A network switching method and apparatus based on network load control - Google Patents
A network switching method and apparatus based on network load control Download PDFInfo
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- CN103596230A CN103596230A CN201210288309.6A CN201210288309A CN103596230A CN 103596230 A CN103596230 A CN 103596230A CN 201210288309 A CN201210288309 A CN 201210288309A CN 103596230 A CN103596230 A CN 103596230A
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Abstract
The embodiment of the invention discloses a network switching method and apparatus based on network load control. The method comprises initiating a request for measuring the load of a target access point AP through a mobile broadband network by a receiving terminal, wherein the request comprises the MAC address of the target AP; querying and obtaining the IP address of the target AP according to the MAC address of the target AP; transmitting the request to the target AP on the basis of the IP address of the target AP; receiving a measured result fed by the target AP, comparing the measured result and a set parameter threshold, and determining whether to execute the switch from the mobile broadband network to a wireless broadband network; and if network switching is determined, transmitting switching indication to a terminal in order that the terminal achieves the switch from the mobile broadband network to the wireless broadband network. The network switching apparatus is still capable of effectively maintaining the user rate in the mobile broadband network after switched to the wireless broadband network so as to further guarantee good user experience.
Description
Technical field
The present invention relates to many network cooperatings field of mobile broadband network and wireless broadband network, especially, relate to network method for switching between and device that a kind of load Network Based is controlled.
Background technology
At present, such as CDMA(Code Division Multiple Access, code division multiple access access), WCDMA(Wideband Code Division Multiple Access, Wideband Code Division Multiple Access (WCDMA) access), HSPA(High Speed Packet Access, high-speed packet access), LTE(Long Term Evolution, Long Term Evolution) etc. mobile broadband network with such as WiFi(Wireless Fidelity) the fusion of wireless broadband network collaboratively also become the focus that industry focuses on, the rete mirabile that present stage can have been realized the unified certification framework based on mobile broadband network+wireless broadband network switches.But terminal, only by the single judgement of WiFi signal strength signal intensity being determined whether to carry out the switching of rete mirabile, cannot be measured and judgement the WiFi network quality of the objective network being switched at present.
Realizing while switching between mobile broadband network and wireless broadband network, because terminal is used 2 independently communication modules, therefore can be first with switching after objective network set up communication link, and then the communication link of dismounting and former network.Wireless broadband network is in communication link process of establishing, owing to lacking the access control ability of load Network Based, therefore caused when mobile broadband network and wireless broadband network switch, the unidirectional successful switch of mobile broadband network may not guarantee user rate experience after wireless broadband network, and the user perceptibility after switching may be reduced.
Summary of the invention
The technical problem that the embodiment of the present invention will solve is to provide a kind of network method for switching between and device, can guarantee to be switched to the user rate after wireless broadband network from mobile broadband network.
One embodiment of the present of invention provide a kind of network method for switching between, comprise the request of the measurement target access point AP load that receiving terminal is initiated by mobile broadband network, comprise the MAC Address of target AP in request; The IP address that obtains target AP according to the MAC Address inquiry of target AP; The IP address of based target AP sends the request to target AP; The measurement result of receiving target AP feedback, compares the parameter thresholding of measurement result and setting, determines whether to carry out the switching to wireless broadband network from mobile broadband network; As determined, carry out switching between network, to terminal, send and switch indication, to realize the switching to wireless broadband network from mobile broadband network by terminal.
Another embodiment of the present invention also provides a kind of inter-network switching device, comprises request reception unit, and the request of the measurement target access point AP that initiates by mobile broadband network for receiving terminal load comprises the MAC Address of target AP in request; Address acquisition unit, for the IP address that obtains target AP according to the MAC Address inquiry of target AP; Request transmitting unit, sends the request to target AP for the IP address of based target AP; Switching judging unit, the measurement result for receiving target AP feedback, compares the parameter thresholding of measurement result and setting, determines whether to carry out the switching to wireless broadband network from mobile broadband network; Indication transmitting element, for carry out switching between network as determined, sends and switches indication to terminal, to realize the switching to wireless broadband network from mobile broadband network by terminal.
Network method for switching between and device that the embodiment of the present invention provides, based on existing mobile broadband+WiMAX unified certification framework, the measurement of AP side load in having increased newly wireless broadband network before mobile broadband network is switched to wireless broadband network, and after being compared, measured value and default thresholding determine again whether terminal carries out the switching to wireless broadband network from mobile broadband network, in this case, as will still can effectively keep the user rate in mobile broadband network after being switched to wireless broadband network, and then guaranteed that good user experiences.
Accompanying drawing explanation
Accompanying drawing described herein is used to provide a further understanding of the present invention, forms the application's a part.In the accompanying drawings:
Fig. 1 is existing mobile broadband network and wireless broadband network coordinated groups planar network architecture schematic diagram.
Fig. 2 is the schematic flow sheet of an embodiment of network method for switching between of the present invention.
Fig. 3 is the schematic flow sheet that the present invention determines whether an example that carries out switching between network.
Fig. 4 is the schematic flow sheet of another embodiment of network method for switching between of the present invention.
Fig. 5 is the structural representation of an embodiment of inter-network switching device of the present invention.
Fig. 6 is the structural representation of another embodiment of inter-network switching device of the present invention.
Embodiment
With reference to the accompanying drawings the present invention is described more fully, exemplary embodiment of the present invention is wherein described.Exemplary embodiment of the present invention and explanation thereof are used for explaining the present invention, but do not form inappropriate limitation of the present invention.
To the description only actually of at least one exemplary embodiment, be illustrative below, never as any restriction to the present invention and application or use.
Fig. 1 is existing mobile broadband network and wireless broadband network coordinated groups planar network architecture schematic diagram.
As shown in Figure 1, take the collaborative unified certification framework of CDMA+WiFi describes as example.PDSN(Packet Data Service Node in Fig. 1, group data service node), AN-AAA(Access node-Authentication, Authorization and Accounting, access node-Certificate Authority and charging), HLR(Home Location Register, attaching position register), RNC(Radio Network Controller, radio network controller), BSC/PCF(Base Station Controller/Packet Control Function, base station controller/Packet Control Function), BTS(Base Transceiver Station, base station transceiver) be the standard network element of cdma network, AP(Access Point, access point), AC/BAS(Access Controller/Broadband Access Server, access control equipment/BAS Broadband Access Server) be the standard network element of WiFi network, WAG(Wireless Local Area Network Access Gateway, WLAN (wireless local area network) IAD) for realizing the WLAN (wireless local area network) IAD of unified certification, said network element is existing network network element.
Following embodiment of the present invention has increased inter-network switching device newly on the group-network construction basis shown in Fig. 1, this device is controlled receiving WiFi network load to be measured and rete mirabile is switched to carry out from the triggering of mobile terminal initiation, it will be deployed on public network, for it provides a public network IP address, the object IP address of terminal using this public network IP address as switchable load measurement request message.Terminal is set up communication link by mobile broadband network and this device, completes the information interaction of relevant handover request, and according to measurement result, makes the judgement of the whether switching to wireless broadband network from mobile broadband network.
Fig. 2 is the schematic flow sheet of an embodiment of network method for switching between of the present invention.
As shown in Figure 2, this embodiment can comprise the following steps:
S202, when terminal works is in mobile broadband network, it can periodically measure the signal strength signal intensity of each AP institute broadcast singal in wireless broadband network, when the network handoff threshold that the signal strength signal intensity of certain AP surpass to set being detected, this terminal sends the request of measurement target AP load, now, the request of the measurement target AP load that inter-network switching device receiving terminal is initiated by mobile broadband network, to carry out when mobile broadband network to wireless broadband network switches, not only consider signal strength signal intensity, also consider the load condition of target AP, wherein, the MAC Address that comprises target AP in this request, this target AP is that terminal is according to the determined access point of the signal strength signal intensity in measured wireless broadband network,
S204, the MAC(Mdium Access Control of AP prestores, media access control) mapping relations between address Yu QiIP address, after receiving the MAC Address of target AP, inquire about according to the MAC Address of target AP and above-mentioned mapping relations the IP address that obtains target AP;
S206, the request that terminal is initiated in the IP address of based target AP is sent to target AP;
S208, target AP self is periodically carried out parameter measurement, after receiving the request of measurement, by up-to-date measurement feedback to inter-network switching device, the measurement result of this device receiving target AP feedback, and the parameter thresholding of measurement result and setting is compared, to determine whether to carry out the switching to wireless broadband network from mobile broadband network;
S210, carries out switching between network as determined, to terminal, sends and switches indication, to realize the switching to wireless broadband network from mobile broadband network by terminal.
This embodiment is based on existing mobile broadband+WiMAX unified certification framework, the measurement of AP side load in having increased newly wireless broadband network before mobile broadband network is switched to wireless broadband network, and after being compared, measured value and default thresholding determine again whether terminal carries out the switching to wireless broadband network from mobile broadband network, in this case, as will still can effectively keep the user rate in mobile broadband network after being switched to wireless broadband network, and then guaranteed that good user experiences.Further, can also avoid causing AP congestion problems after mobile broadband network is switched to wireless broadband network.
Alternatively, in the request that terminal sends, can also comprise the parameter that request target AP measures.Like this, required judgement parameter in the time of can being undertaken switching between network by terminal configuration.
Particularly, the parameter that request target AP measures can include but not limited to the number-of-packet of number of terminals online under current AP, the descending re-transmission of wireless channel, the current signal to noise ratio of the misdata bag number of reception and the terminal that AP receives.
After above-mentioned parameter or self being determined in target AP to the parameter feedback that need report is to inter-network switching device, its current signal to noise ratio by number of terminals, the number-of-packet of the descending re-transmission of wireless channel, the misdata bag number of reception and the terminal that AP receives online under current AP of target AP feedback compares with corresponding parameter thresholding respectively; If number of terminals, the number-of-packet of the descending re-transmission of wireless channel and the misdata bag number receiving online under the current AP of target AP feedback are all less than corresponding parameter thresholding, and the number that the current signal to noise ratio of the terminal receiving at AP is greater than corresponding parameter thresholding is less than while setting quantity, determine and carry out the switching to wireless broadband network from mobile broadband network, otherwise, do not carry out between network and switch.
Fig. 3 is the schematic flow sheet that the present invention determines whether an example that carries out switching between network.
Network load switchover policy server hypothesis for adjudicate whether carry out several parameters of switching between network thresholding respectively: under current AP online number of terminals thresholding be the number-of-packet thresholding of A, the descending re-transmission of wireless channel be the misdata bag of B, reception count thresholding be the current signal-noise ratio threshold of the terminal that receives of C, AP be D(for example, 20dB), the current signal to noise ratio of the terminal that receives of AP surpasses the terminal quantity thresholding E of thresholding D.
As shown in Figure 3, can comprise the following steps:
S302, adjudicates according to number of terminals online under current AP, if the measured value about number of terminals online under current AP of target AP feedback is more than or equal to A, performs step S310, otherwise execution step S304;
S304, adjudicates according to the number-of-packet of the descending re-transmission of wireless channel, if the measured value of the number-of-packet about the descending re-transmission of wireless channel of target AP feedback is more than or equal to B, performs step S310, otherwise execution step S306;
S306, adjudicates according to the misdata bag number receiving, if the measured value of the misdata bag number about reception of target AP feedback is more than or equal to C, performs step S310, otherwise execution step S308;
S308, the current signal to noise ratio of the current signal to noise ratio of the terminal receiving according to AP and the terminal that AP receives surpasses the terminal quantity of thresholding D and adjudicates, if the measured value of the current signal to noise ratio of the terminal receiving about AP of target AP feedback is more than or equal to the terminal quantity that the measured value of D and current signal to noise ratio is more than or equal to D and is more than or equal to E, perform step S310, otherwise execution step S312;
S310, network load switchover policy server issues indication to terminal, refuses this handover request, and terminal is ended the switching to wireless broadband network from mobile broadband network;
S312, network load switchover policy server issues indication to terminal, permits this handover request, and terminal is carried out the switching to wireless broadband network from mobile broadband network.
It is to be noted, to parameter: number of terminals, the number-of-packet of the descending re-transmission of wireless channel online under current AP are, the judgement of the current signal to noise ratio of the misdata bag number of reception and the terminal that AP receives is not limited in the order of above-mentioned S302, S304, S306 and S308, and the order of these steps can exchange arbitrarily.
Fig. 4 is the schematic flow sheet of another embodiment of network method for switching between of the present invention.
Consider current carrier network maintenance system framework, on AP upper strata, there is a unified WiFi wireless network management system, so in this embodiment, for the ease of realizing and actual O&M, can increase again the function that a network load switchover policy server is realized inter-network switching device jointly newly by the WiFi wireless network management system based in existing network.Wherein, network load handover measurement server and WiFi wireless network management system are all deployed on public network, by network load switchover policy server access WiFi wireless network management system, obtain the current load condition of switching target AP.
As shown in Figure 4, this embodiment can comprise the following steps:
S402, terminal is worked under mobile broadband network, when measuring the mean value of target AP signal strength signal intensity within certain a period of time and reach a certain thresholding, by mobile broadband network, to network load switchover policy server, send the request of switching target AP load of measuring, wherein, the MAC Address that comprises target AP in this request;
S404, network load switchover policy server is with HTTP(Hypertext Transfer Protocol, HTML (Hypertext Markup Language)) request mode authenticates to be logined after WiFi wireless network management system, trigger WiFi wireless network management system and send load measurement request to target AP, in HTTP get message, comprise and login the relevant performance parameter title of load that the user name of the wireless webmaster of WiFi and the MAC Address of password, target AP and request target AP are measured, particularly, these performance parameters can be as described in Table 1:
Table 1
S406, WiFi wireless network management system matches the IP address of this target AP according to the MAC Address of target AP, set up and the writing to each other of AP, and load measurement request is sent to target AP by the mode of PING;
S408, in target AP, there is a MIB(Management Information Base, management information bank), wherein except device configuration information, also comprise AP performance statistics parameter, target AP can periodically be measured the parameter shown in following table 2, after receiving the request of measurement, target AP can be according to the measurement feedback of the parameter to be measured of carrying in request to WiFi wireless network management system, while not comprising measurement parameter in the request of measuring, target AP also can all feed back to WiFi wireless network management system by all parameters in following table 2, by WiFi wireless network management system and/or network load handover measurement server, determine and utilize which parameter decision whether to realize the switching to wireless broadband network from mobile broadband network:
Table 2
S410, WiFi wireless network management system all feeds back to network load switchover policy server in the http response mode such as HTTP 200OK by the load measurement result of target AP feedback;
S412, network load switchover policy server compares the parameter thresholding of the target AP load measurement result of obtaining and setting respectively, judge whether terminal will carry out the switching of WiFi wireless network, as determined, switch, will switch indication feedback to terminal, if do not switched, also can send the instruction of not switching to terminal;
S414, terminal, by switching according to the indication of obtaining, is known still and is resided on mobile broadband network.
Switching in this embodiment is still initiated automatically by terminal, before switching, in mobile broadband network side, increased the load judgement of switching target AP based on WiFi wireless network, in whole handover request process business do not interrupt, user's unaware, simultaneously, if terminal can be switched to WiFi wireless network, its user rate is experienced and can not declined, and has guaranteed user's perceptibility.
One of ordinary skill in the art will appreciate that, whole and the part steps that realizes said method embodiment can complete by the relevant hardware of program command, aforesaid program can be stored in a computing equipment read/write memory medium, this program is when carrying out, execution comprises the step of said method embodiment, and aforesaid storage medium can comprise the various media that can be program code stored such as ROM, RAM, magnetic disc and CD.
Fig. 5 is the structural representation of an embodiment of inter-network switching device of the present invention.
As shown in Figure 5, the device 50 in this embodiment can comprise request reception unit 502, address acquisition unit 504, request transmitting unit 506, switching judging unit 508 and indication transmitting element 510.
Wherein, the request of measurement target access point AP that request reception unit 502 receiving terminals are initiated by mobile broadband network load, comprises the MAC Address of target AP in request; The IP address that address acquisition unit 504 is obtained target AP according to the MAC Address inquiry of target AP; The IP address of request transmitting unit 506 based target AP sends the request to target AP; The measurement result of switching judging unit 508 receiving target AP feedbacks, compares the parameter thresholding of measurement result and setting, determines whether to carry out the switching to wireless broadband network from mobile broadband network; As determined, carry out switching between network, indicate transmitting element 510 to send and switch indication to terminal, to realize the switching to wireless broadband network from mobile broadband network by terminal.
Further, in the request that terminal sends to inter-network switching device, also comprise the parameter that request target AP measures, particularly, the parameter that request target AP measures can include but not limited to the number-of-packet of number of terminals online under current AP, the descending re-transmission of wireless channel, the current signal to noise ratio of the misdata bag number of reception and the terminal that AP receives.
The target AP of changing to be cut that terminal is tentatively determined is that terminal is according to the determined access point of the signal strength signal intensity in measured wireless broadband network.
Fig. 6 is the structural representation of another embodiment of inter-network switching device of the present invention.
As shown in Figure 6, compare with the embodiment in Fig. 5, the switching judging unit 602 in the device 60 in this embodiment can comprise parameter relatively subelement 602a and definite subelement 602b.
Wherein, parameter comparison subelement 602a compares the current signal to noise ratio of number of terminals, the number-of-packet of the descending re-transmission of wireless channel, the misdata bag number of reception and the terminal that AP receives online under the current AP of target AP feedback respectively with corresponding parameter thresholding; If number of terminals, the number-of-packet of the descending re-transmission of wireless channel and the misdata bag number receiving online under the current AP of target AP feedback are all less than corresponding parameter thresholding, and the number that the current signal to noise ratio of the terminal receiving at AP is greater than corresponding parameter thresholding is less than while setting quantity, determine that subelement 602b determines execution switching to wireless broadband network from mobile broadband network, otherwise, do not carry out between network and switch.
In this specification, each embodiment all adopts the mode of going forward one by one to describe, and what each embodiment stressed is and the difference of other embodiment that part identical with similar between each embodiment can cross-references.For device embodiment, because it is substantially similar to embodiment of the method, so description is fairly simple, relevant part can be referring to the explanation of embodiment of the method part.
Although specific embodiments more of the present invention are had been described in detail by example, it should be appreciated by those skilled in the art, above example is only in order to describe, rather than in order to limit the scope of the invention.It should be appreciated by those skilled in the art, can without departing from the scope and spirit of the present invention, above embodiment be modified.Scope of the present invention is limited by claims.
Claims (10)
1. a network method for switching between, is characterized in that, comprising:
The request of measurement target access point AP that receiving terminal is initiated by mobile broadband network load, comprises the MAC Address of target AP in described request;
The IP address that obtains described target AP according to the MAC Address inquiry of described target AP;
IP address based on described target AP is sent to described target AP by described request;
The measurement result that receives described target AP feedback, compares the parameter thresholding of described measurement result and setting, determines whether to carry out the switching to wireless broadband network from described mobile broadband network;
As determined, carry out switching between network, to described terminal, send and switch indication, to be realized the switching to described wireless broadband network from described mobile broadband network by described terminal.
2. network method for switching between according to claim 1, is characterized in that, also comprises the parameter that request target AP measures in described request.
3. network method for switching between according to claim 1, is characterized in that, described target AP is that described terminal is according to the determined access point of the signal strength signal intensity in measured wireless broadband network.
4. network method for switching between according to claim 2, it is characterized in that, the parameter that described request target AP is measured comprises the number-of-packet of number of terminals online under current AP, the descending re-transmission of wireless channel, the current signal to noise ratio of the misdata bag number of reception and the terminal that AP receives.
5. network method for switching between according to claim 1, is characterized in that, the parameter thresholding of described measurement result and setting is compared, and determines whether that the step of carrying out the switching to wireless broadband network from described mobile broadband network comprises:
The current signal to noise ratio of number of terminals, the number-of-packet of the descending re-transmission of wireless channel, the misdata bag number of reception and the terminal that AP receives online under the current AP of described target AP feedback is compared with corresponding parameter thresholding respectively;
If number of terminals, the number-of-packet of the descending re-transmission of wireless channel and the misdata bag number receiving online under the current AP of described target AP feedback are all less than corresponding parameter thresholding, and the number that the current signal to noise ratio of the terminal receiving at AP is greater than corresponding parameter thresholding is less than while setting quantity, determine and carry out the switching to described wireless broadband network from described mobile broadband network, otherwise, do not carry out between network and switch.
6. an inter-network switching device, is characterized in that, comprising:
Request reception unit, the request of the measurement target access point AP initiating by mobile broadband network for receiving terminal load, comprises the MAC Address of target AP in described request;
Address acquisition unit, for the IP address that obtains described target AP according to the MAC Address inquiry of described target AP;
Request transmitting unit, is sent to described target AP for the IP address based on described target AP by described request;
Switching judging unit, for receiving the measurement result of described target AP feedback, compares the parameter thresholding of described measurement result and setting, determines whether to carry out the switching to wireless broadband network from described mobile broadband network;
Indication transmitting element, for carry out switching between network as determined, sends and switches indication to described terminal, to be realized the switching to described wireless broadband network from described mobile broadband network by described terminal.
7. inter-network switching device according to claim 6, is characterized in that, also comprises the parameter that request target AP measures in described request.
8. inter-network switching device according to claim 6, is characterized in that, described target AP is that described terminal is according to the determined access point of the signal strength signal intensity in measured wireless broadband network.
9. inter-network switching device according to claim 7, it is characterized in that, the parameter that described request target AP is measured comprises the number-of-packet of number of terminals online under current AP, the descending re-transmission of wireless channel, the current signal to noise ratio of the misdata bag number of reception and the terminal that AP receives.
10. inter-network switching device according to claim 6, is characterized in that, described switching judging unit comprises:
Parameter is subelement relatively, for the current signal to noise ratio of number of terminals, the number-of-packet of the descending re-transmission of wireless channel, the misdata bag number of reception and the terminal that AP receives online under the current AP of described target AP feedback is compared with corresponding parameter thresholding respectively;
Determine subelement, if number of terminals, the number-of-packet of the descending re-transmission of wireless channel and the misdata bag number receiving online under the current AP for described target AP feedback are all less than corresponding parameter thresholding, and the number that the current signal to noise ratio of the terminal receiving at AP is greater than corresponding parameter thresholding is less than while setting quantity, determine and carry out the switching to described wireless broadband network from described mobile broadband network, otherwise, do not carry out between network and switch.
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Application publication date: 20140219 |