CN102843730B - Method for transmitting data, network element side and UE (User Equipment) in joint transmission - Google Patents
Method for transmitting data, network element side and UE (User Equipment) in joint transmission Download PDFInfo
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- CN102843730B CN102843730B CN201110171606.8A CN201110171606A CN102843730B CN 102843730 B CN102843730 B CN 102843730B CN 201110171606 A CN201110171606 A CN 201110171606A CN 102843730 B CN102843730 B CN 102843730B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W28/00—Network traffic management; Network resource management
- H04W28/02—Traffic management, e.g. flow control or congestion control
- H04W28/08—Load balancing or load distribution
- H04W28/0867—Load balancing or load distribution among entities in the downlink
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W28/00—Network traffic management; Network resource management
- H04W28/02—Traffic management, e.g. flow control or congestion control
- H04W28/08—Load balancing or load distribution
- H04W28/086—Load balancing or load distribution among access entities
- H04W28/0861—Load balancing or load distribution among access entities between base stations
Abstract
The invention discloses a method for sending downlink data in joint transmission. The method comprises the following steps of distributing a data transmission protocol framework of a data package by adopting an MAC (Media Access Control) layer according to an anchor point network element and a non-anchor point network element which are involved in the joint transmission, wherein the MAC layer of the data transmission protocol framework comprises an MAC-1 entity and an MAC-2 entity which are positioned in the anchor point network element and an MAC-2 entity which is positioned in the non-anchor point network element; and distributing a downlink data package to each MAC-2 entity by the MAC-1 entity positioned in the anchor point network element during data joint transmission, and sending the received downlink data package to UE (User Equipment) by each MAC-2 entity which receives the downlink data package. The invention also simultaneously discloses a receiving method of the downlink data, a sending and receiving method of uplink data, a corresponding network element side and the UE in the joint transmission. According to the scheme disclosed by the invention, the data transmission problem in a joint transmission way is solved, the reasonable data distribution at the network element side is facilitated, and the data transmission rate of the UE is increased.
Description
Technical field
The present invention relates to third generation affiliate (3GPP) technology of the communications field, more particularly to number in a kind of joint transmission
According to the method for transmission, network element side network element and user equipment.
Background technology
The framework of existing 3GPP access systems, as shown in figure 1, including wireless access mesh portions and core network part, wherein
Wireless access mesh portions include GERAN (GSM EDGE Radio Access Network), UMTS (UMTS,
Universal Mobile Telecommunications System) access network and Long Term Evolution (LTE, Long Term
Evolution) access network.The access network of GERAN and UMTS with core network element GPRS serving GPRS support nodes (SGSN,
Serving GPRS Support Node) it is connected, the access network of LTE and core network element Mobility Management Entity (MME,
Mobility Management Entity) it is connected.GERAN refers to base station sub-system (BSS, Base Station
Subsystem), BSS includes base station controller (BSC, Base Station Controller) and base station (BS, Base
Station)；The access network elements of UMTS include radio network controller (RNC, Radio Network Controller) and base
Stand (NodeB)；The access network elements of LTE are evolution base station (eNB, Evolved NodeB).In order to ensure the user of connected state sets
Standby (UE, User Equipment) can be freely moved between different access systems, have S3 and connect between SGSN and MME
Mouthful, the interface can realize switching of the user equipment between different access systems.
In order to realize higher transfer rate, 3GPP proposes the technology of carrier aggregation (Carrier Aggregation)
Scheme, is user equipment service using multiple carrier waves simultaneously.Existing carrier aggregation scheme is mainly using more in triangular web
Individual carrier wave provides service for user equipment simultaneously, and in such as UMTS, using the carrier wave of 2 or more than 2, (each carrier wave can be only
Vertical cell, or only the resource carrier wave of offer data transfer) while keep communicating with user equipment, or profit in LTE
Keep communicating with user equipment with the carrier waves of 2 or more than 2 simultaneously.But in actual network, due to number of carrier frequencies
The restriction of amount, some mobile operator do not have enough frequencies while disposing multiple UMTS and LTE system, and mobile operator understands root
The carrier frequency number of UMTS and LTE is adjusted according to the number of user equipment of access network.As UMTS system and LTE system can be total to for a long time
Deposit, when the capacity (restriction of carrier frequency) of individual system is not enough to provide high transfer rate, it is thought that using different
The scheme of system combined transmission, this is referred to as the carrier aggregation of cross-system, as shown in Fig. 2 user equipment adopts two simultaneously
Kind of access technology, sets up two wireless links for transmission data, one be user equipment and the evolution base station of LTE radio chains
Road, another be user equipment with base station and RNC in UMTS system wireless link, this not only can obtain higher handling up
Amount, and the effect of preferable load balancing can be reached.Before scheme not using joint transmission, the load between system
The balanced method enforcement that can only pass through switching, redirect, if using the scheme of joint transmission, network side can be connect according to difference
Enter the load of system, dynamically adjust each user equipment transfer rate on different links, can preferably realize load
It is balanced.
When user equipment adopts the scheme of joint transmission, user equipment must possess while supporting the hard of two kinds of access technologies
The ability of part and software, under joint transmission mode, needs to solve how data are transmitted by two systems, how to guarantee
The problem of complete orderly transmission data.
The content of the invention
In view of this, present invention is primarily targeted at providing a kind of method of data transfer in joint transmission, network element side network element
And user equipment, solve user equipment at the same access two systems when data transmission problems, contribute to network side and reasonably divide
Data are sent out, the speed of the data transfer of user equipment is favorably improved.
To reach above-mentioned purpose, the technical scheme is that what is be achieved in that：
The sending method of downlink data in a kind of joint transmission that the present invention is provided, the method include：
The anchor point network element and non-anchor network element of joint transmission are participated in using medium education (MAC) layer packet distribution
Data Transport Protocol framework；
The MAC layer of the Data Transport Protocol framework includes the MAC-1 entities and MAC-2 entities positioned at anchor point network element, with
And positioned at the MAC-2 entities of non-anchor network element；
In joint transmission data, downlink data packet is distributed to each MAC-2 by the MAC-1 entities positioned at anchor point network element
The downlink data packet for receiving is sent to user equipment by entity, the MAC-2 entities for receiving downlink data packet.
In such scheme, the Data Transport Protocol framework of the MAC layer packet distribution also includes：Packet data convergence is assisted
View (PDCP, Packet Data Convergence Protocol) layer and wireless spread-spectrum technology (RLC, Radio Link
Control) layer；
Downlink data packet is sequentially passed through the anchor point network element RLC entities of the PDCP entities and rlc layer of PDCP layers, is generated
Rlc protocol data cell (PDU, Protocol Data Unit)；RLC PDU are sent to RLC entities the MAC-1 realities of MAC layer
Body.
In such scheme, downlink data packet is distributed to each MAC-2 entities by the MAC-1 entities positioned at anchor point network element,
For：The MAC-1 entities distribute downlink data to each MAC-2 entities by data-interface according to distribution policy set in advance
Bag；
The distribution policy set in advance is：Distribute the strategy of downlink data packet according to set proportion or according to nothing
Line channel quality determines the strategy of the ratio of distribution downlink data packet.
In such scheme, the method is further included：
Possess the corresponding protocol stack of anchor point network element place system and non-anchor network element place system inside the user equipment
Corresponding protocol stack, user equipment arrange MAC-1 entities and MAC-2 realities in the corresponding protocol stack of the anchor point network element place system
Body, arranges MAC-2 entities in the corresponding protocol stack of the non-anchor network element place system, and in -1 entity of self MAC and MAC-2
Data-interface is set up between entity.
In such scheme, the method is further included：The physical layer of the user equipment obtains downlink data packet, by certainly
The MAC-2 entities of the corresponding protocol stack of anchor point network element place system and/or the corresponding association of non-anchor network element place system inside body
The downlink data packet of acquisition is sent to system corresponding agreement in anchor point network element place in user equipment by the MAC-2 entities of view stack
The MAC-1 entities of stack；
In the user equipment, the MAC-1 entities of the corresponding protocol stack of anchor point network element place system are by the downlink data packet
The RLC entities and PDCP entities of user equipment are sequentially passed through, application layer is sent to.
In such scheme, the method is further included：User equipment send upstream data bag when, by anchor point in itself
Upstream data bag is distributed to each MAC-2 entities in itself by the MAC-1 entities of the corresponding protocol stack of network element place system, described
Upstream data bag is sent to anchor point network element and/or non-anchor network element by physical layer by MAC-2 entities.
In such scheme, the method is further included：The physical layer of the anchor point network element and/or non-anchor network element is used
The upstream data bag that family equipment sends, by being sent to the MAC-1 entities positioned at anchor point network element positioned at the MAC-2 entities of itself；
The upstream data bag is sequentially passed through the MAC-1 entities positioned at anchor point network element the RLC of the anchor point network element
Entity is sent to PDCP entities.
In such scheme, the anchor point network element is that the system that wireless heterogeneous networks (RRC) are connected is set up with user equipment
Access network elements.
It is in such scheme, described when system that RRC is connected has been set up with user equipment is UMTS system, the anchor point network element
RNC or base station for UMTS system；Or, it is described when system that RRC is connected has been set up with user equipment is LTE system, it is described
Evolution base station of the anchor point network element for LTE system.
The method of reseptance of downlink data in a kind of joint transmission that the present invention is provided, the method include：
User equipment arranges MAC-1 entities and MAC-2 realities in the corresponding protocol stack of therein anchor point network element place system
Body, at therein non-anchor network element place, the corresponding protocol stack of system arranges MAC-2 entities, and in -1 entity of self MAC and
Data-interface is set up between MAC-2 entities；
The physical layer of user equipment obtains downlink data packet, by the corresponding agreement of therein anchor point network element place system
The MAC-2 entities of the MAC-2 entities and/or the corresponding protocol stack of non-anchor network element place system of stack, the downlink data that will be obtained
Bag is sent to the MAC-1 entities of system corresponding protocol stack in anchor point network element place in user equipment；
In the user equipment, the MAC-1 entities of the corresponding protocol stack of anchor point network element place system are by the downlink data packet
The RLC entities and PDCP entities of user equipment are sequentially passed through, application layer is sent to.
The sending method of upstream data in a kind of joint transmission that the present invention is provided, the method include：
User equipment arranges MAC-1 entities and MAC-2 realities in the corresponding protocol stack of therein anchor point network element place system
Body, at therein non-anchor network element place, the corresponding protocol stack of system arranges MAC-2 entities, and in -1 entity of self MAC and
Data-interface is set up between MAC-2 entities；
User equipment send upstream data bag when, by system corresponding protocol stack in anchor point network element place in itself
Upstream data bag is distributed to each MAC-2 entities in itself by MAC-1 entities, and the MAC-2 entities pass through physical layer by upper line number
Anchor point network element and/or non-anchor network element are sent to according to bag.
The method of reseptance of upstream data in a kind of joint transmission that the present invention is provided, the method include：
Participate in the Data Transport Protocol frame of anchor point network element and non-anchor network element using MAC layer packet distribution of joint transmission
Structure；
The MAC layer of the Data Transport Protocol framework includes the MAC-1 entities and MAC-2 entities positioned at anchor point network element, with
And positioned at the MAC-2 entities of non-anchor network element；
The physical layer of anchor point network element and/or non-anchor network element obtains the upstream data bag that user equipment sends, by being located at
The MAC-2 entities of itself are sent to the MAC-1 entities positioned at anchor point network element；
The upstream data bag is sequentially passed through the MAC-1 entities positioned at anchor point network element the RLC of the anchor point network element
Entity is sent to PDCP entities.
The network element side network element of data transfer in a kind of joint transmission that the present invention is provided, the network element side network element include：Anchor point network element and non-
Anchor point network element；Wherein,
The anchor point network element and non-anchor network element adopt the Data Transport Protocol framework of MAC layer packet distribution, the number
Include the MAC-1 entities and MAC-2 entities positioned at anchor point network element according to the MAC layer of host-host protocol framework, and be located at non-anchor net
The MAC-2 entities of unit；
The anchor point network element, in joint transmission data, distributing downlink data by the MAC-1 entities positioned at itself
Each MAC-2 entities are wrapped, the downlink data packet that the MAC-1 entities for receiving are distributed is sent to user and is set by the MAC-2 entities of itself
It is standby；
The non-anchor network element, for the downlink data distributed the MAC-1 entities for receiving by the MAC-2 entities of itself
Bag is sent to user equipment.
In such scheme, the anchor point network element, specifically in joint transmission data, downlink data packet being sequentially passed through
PDCP entities and RLC entities are sent to MAC-1 entities；The downlink data packet for receiving is distributed to by MAC-1 entities and is each positioned at
The MAC-2 entities of anchor point network element and the MAC-2 entities positioned at non-anchor network element.
The user equipment of data transfer in a kind of joint transmission that the present invention is provided, the user equipment include：Packet connects
Receive unit and protocol layer transmission unit；Wherein,
The user equipment arranges MAC-1 entities and MAC- in the corresponding protocol stack of therein anchor point network element place system
2 entities, at therein non-anchor network element place, the corresponding protocol stack of system arranges MAC-2 entities, and in -1 entity of self MAC
Data-interface is set up and MAC-2 entities between；
The packet receiving unit, for obtaining downlink data packet in physical layer；
Protocol layer transmission unit, for the MAC-2 by system corresponding protocol stack in anchor point network element place in user equipment
The downlink data packet of acquisition is sent to use by the MAC-2 entities of entity and/or the corresponding protocol stack of non-anchor network element place system
The MAC-1 entities of the corresponding protocol stack of anchor point network element place system in the equipment of family；By anchor point network element institute in the user equipment
The downlink data packet is sequentially passed through the RLC entities and PDCP of user equipment in the MAC-1 entities of system corresponding protocol stack
Entity, is sent to application layer.
The user equipment of data transfer in a kind of joint transmission that the present invention is provided, the user equipment include：Packet is sent out
Send unit；Wherein,
The user equipment arranges MAC-1 entities and MAC- in the corresponding protocol stack of therein anchor point network element place system
2 entities, at therein non-anchor network element place, the corresponding protocol stack of system arranges MAC-2 entities, and in -1 entity of self MAC
Data-interface is set up and MAC-2 entities between；
The packet transmitting element, for when upstream data bag is sent, being located by anchor point network element in user equipment
Upstream data bag is distributed to each MAC-2 entities, the MAC-2 in user equipment by the MAC-1 entities of the corresponding protocol stack of system
Upstream data bag is sent to anchor point network element and/or non-anchor network element by physical layer by entity.
The network element side network element of data transfer in a kind of joint transmission that the present invention is provided, the network element side network element include：Anchor point network element and non-
Anchor point network element；Wherein,
The anchor point network element and non-anchor network element adopt the Data Transport Protocol framework of MAC layer packet distribution；
The MAC layer of the Data Transport Protocol framework includes the MAC-1 entities and MAC-2 entities positioned at anchor point network element, with
And positioned at the MAC-2 entities of non-anchor network element；
The anchor point network element, for when physical layer obtains the upstream data bag that user equipment sends, by positioned at itself
MAC-2 entities be sent to the MAC-1 entities positioned at itself；The upstream data bag for receiving is sequentially passed through by the MAC-1 entities
The RLC entities of the anchor point network element are sent to PDCP entities；
Non-anchor network element, for when physical layer obtains the upstream data bag that user equipment sends, by being located at itself
MAC-2 entities are sent to the MAC-1 entities positioned at anchor point network element.
The invention provides the method for data transfer, network element side network element and user equipment in a kind of joint transmission, participate in joint and pass
Defeated anchor point network element and non-anchor network element adopt the Data Transport Protocol framework of MAC layer packet distribution；The data transfer association
The MAC layer of view framework includes the MAC-1 entities and MAC-2 entities positioned at anchor point network element, and positioned at the MAC-2 of non-anchor network element
Entity；In joint transmission data, downlink data packet is distributed to each MAC-2 realities by the MAC-1 entities positioned at anchor point network element
The downlink data packet for receiving is sent to user equipment by body, the MAC-2 entities for receiving downlink data packet；Thus, solving
Data transmission problems under joint transmission mode, contribute to network side and reasonably distribute data, and the data for improving user equipment are passed
Defeated speed.
Description of the drawings
Fig. 1 is the configuration diagram of existing third generation partner program access system；
Fig. 2 adopts the structural representation of joint transmission for user equipment in prior art；
Fig. 3 is the schematic flow sheet of the sending method that the present invention realizes downlink data in a kind of joint transmission；
Fig. 4 is the schematic flow sheet of the method that the embodiment of the present invention one realizes downlink data transmission in joint transmission；
Fig. 5 is the Data Transport Protocol configuration diagram of the MAC layer packet distribution of RNC in the embodiment of the present invention one；
Fig. 6 is the schematic flow sheet of the method that the embodiment of the present invention two realizes downlink data transmission in joint transmission；
Fig. 7 is that the Data Transport Protocol framework of the MAC layer packet distribution of evolution base station 3 in the embodiment of the present invention two is illustrated
Figure.
Specific embodiment
The present invention basic thought be：The anchor point network element and non-anchor network element for participating in joint transmission distributes number using MAC layer
According to the Data Transport Protocol framework of bag；The MAC layer of the Data Transport Protocol framework includes the MAC-1 entities positioned at anchor point network element
With MAC-2 entities, and positioned at the MAC-2 entities of non-anchor network element；It is in joint transmission data, described positioned at anchor point network element
Downlink data packet is distributed to each MAC-2 entities by MAC-1 entities, and the MAC-2 entities for receiving downlink data packet will be received down
Row packet is sent to user equipment.
Below by drawings and the specific embodiments, the present invention is described in further detail.
The present invention realizes a kind of sending method of downlink data in joint transmission, as shown in figure 3, the method include it is following several
Individual step：
Step 101：The anchor point network element and non-anchor network element for participating in joint transmission is distributed using medium education (MAC) layer
The Data Transport Protocol framework of packet；
In this step, the Data Transport Protocol framework of the MAC layer packet distribution includes：PDCP layers, rlc layer and MAC
Layer；Wherein, the MAC layer includes the MAC-1 entities and MAC-2 entities positioned at anchor point network element, and positioned at non-anchor network element
MAC-2 entities, pass through data interface communication between the MAC-1 entities and MAC-2 entities；
Specifically, when joint transmission is configured, anchor point network element, non-anchor network element and user device configuration are using MAC layer point
Send out the user plane parameter of the Data Transport Protocol framework of packet；
The anchor point network element, non-anchor network element and user device configuration are assisted using the data transfer of MAC layer packet distribution
The user plane parameter of view framework, including：After the determination of anchor point network element carries out joint transmission, configuration is using MAC layer packet distribution
The user plane parameter of Data Transport Protocol framework, the user plane parameter include：PDCP layer PDCP entities, rlc layer RLC entities,
The data transmission parameters of MAC layer MAC-1 entity and MAC-2 entities, storage report parameter (BSR, Buffer Status
Report) etc., and joint transmission request is sent to non-anchor network element；After the non-anchor network element receives joint transmission request,
Itself arranges the MAC-2 entities for the user equipment；User equipment is set up or is matched somebody with somebody again according to the carrying that anchor point network element sends
Confidence order is known carries out joint transmission, then configure itself user using the Data Transport Protocol framework of MAC layer packet distribution
Face parameter.
User plane ginseng of the user device configuration itself using the Data Transport Protocol framework of MAC layer packet distribution
Number, including：Configure PDCP layer PDCP entities, rlc layer RLC entities, MAC layer MAC-1 entity and the MAC-2 entities of user equipment
Data transmission parameters, storage report parameter etc., wherein the storage report parameter is optional；Possess inside the user equipment
The corresponding protocol stack of anchor point network element place system and the corresponding protocol stack of non-anchor network element place system, user equipment is in the anchor
System corresponding protocol stack in point network element place arranges -1 entity of self MAC and MAC-2 entities, and being located in the non-anchor network element is
Corresponding protocol stack of uniting arranges -2 entity of self MAC, and between -1 entity of self MAC and MAC-2 entities sets up data-interface.
Step 102：In joint transmission data, downlink data packet is distributed to respectively by the MAC-1 entities positioned at anchor point network element
MAC-2 entities；
Specifically, in joint transmission data, the downlink data packet of anchor point network element sequentially passes through PDCP entities and RLC realities
Body, generates RLC PDU, and RLC PDU are sent to MAC-1 entities by RLC entities；The RLC PDU are after reaching MAC-1 entities
The downlink data packet for receiving is distributed to the MAC- for being each positioned at anchor point network element by data-interface for MAC SDU, the MAC-1 entities
2 entities and the MAC-2 entities positioned at non-anchor network element.Here, after downlink data packet sequentially passes through PDCP entities and RLC entities,
The function such as have been carried out encrypting, be segmented, also, for the orderly transmission of downlink data packet, PDCP entities and RLC entities are to descending
Packet increases respective serial number (SN, Sequence Number).
In this step, the downlink data packet for receiving is distributed to by data-interface and is each positioned at anchor point by the MAC-1 entities
The MAC-2 entities of network element and the MAC-2 entities positioned at non-anchor network element, usually：The MAC-1 entities are according to set in advance
Distribution policy distributes downlink data packet to each MAC-2 entities by data-interface, such as：System that anchor point network element and non-anchor network element are located
System is respectively UMTS system and LTE system, and the distribution policy set in advance is to distribute downlink data according to set proportion
Bag, it is assumed that when the ratio for setting is as 1 to 1, descending 50% downlink data packet is sent to MAC-1 entities the MAC- of UMTS system
2 entities, in addition 50% downlink data packet be sent to the MAC-2 entities of LTE system；Or, the distribution plan set in advance
The ratio of distribution downlink data packet is determined according to quality of wireless channel slightly, then measurement report of the MAC-1 entities according to user equipment
The quality of wireless channel for obtaining anchor point network element and non-anchor network element place system is accused, wherein, what quality of wireless channel preferably divided
Ratio is big, and the poor ratio divided of quality of wireless channel is little, and for example, MAC-1 entities are obtained according to the measurement report of user equipment
The quality of wireless channel of anchor point network element place system is not suitable for transmission data, the quality of wireless channel of non-anchor network element place system
When preferably, MAC-1 entities do not distribute downlink data packet to the MAC-2 entities positioned at anchor point network element, to positioned at non-anchor network element
MAC-2 entities distribute downlink data packet；MAC-1 entities obtain anchor point network element place system according to the measurement report of user equipment
Quality of wireless channel is preferably, the quality of wireless channel of non-anchor network element place system is when being not suitable for transmission data, MAC-1 entities to
Positioned at the MAC-2 entities distribution downlink data packet of anchor point network element, not to the lower line number of MAC-2 entities distribution positioned at non-anchor network element
According to bag；MAC-1 entities according to the measurement report of user equipment obtain the quality of wireless channel of anchor point network element place system with it is non-anchor
The quality of wireless channel of point network element place system is suitable for transmission data but the quality of wireless channel of anchor point network element place system is good
When the quality of wireless channel of non-anchor network element place system, MAC-1 entities are under the MAC-2 entities distribution positioned at anchor point network element
The ratio of row packet is more than the ratio for distributing downlink data packet to the MAC-2 entities positioned at non-anchor network element；Etc..
In the present embodiment, the anchor point network element is the access network elements that the system that RRC is connected has been set up with user equipment；Institute
State and system that RRC is connected set up with user equipment when being UMTS system, RNC or base of the anchor point network element for UMTS system
Stand；Or, described when system that RRC is connected has been set up with user equipment is LTE system, the anchor point network element is LTE system
Evolution base station etc..
It is in this step, when user device configuration is to access (HSPA) technical transmission data using high-speed packet, i.e., up
It is high speed uplink packet access (HSUPA, High Speed Uplink Packet Access), descending is high speed downlink packet
Access (HSDPA, High Speed Downlink Packet Access), spreading code that user equipment is used, use spreading code
Time slot etc. by base station control, then in the umts system, the MAC-2 entity setting ups are in the base station of UMTS system；Work as user
Equipment is configured without when being using HSPA technical transmission data, and in the umts system, the MAC-2 entity setting ups are in UMTS system
RNC.
Step 103：The downlink data packet for receiving is sent to user equipment by the MAC-2 entities for receiving downlink data packet；
Specifically, after the MAC-2 entities of downlink data packet being received by the downlink data packet for receiving multiplexing, be sent to user
The physical layer of equipment；It is described receive downlink data packet MAC-2 entities can be positioned at anchor point network element MAC-2 entities and/
Or positioned at the MAC-2 entities of non-anchor network element.
The present embodiment further includes a kind of method of reseptance of downlink data in joint transmission, and the method includes：
The downlink data packet that the physical layer of user equipment will be obtained, it is corresponding by therein anchor point network element place system
The MAC-2 entities of the MAC-2 entities and/or the corresponding protocol stack of non-anchor network element place system of protocol stack, are sent to user and set
The MAC-1 entities of the corresponding protocol stack of standby interior anchor point network element place system, here, therein anchor point network element place system
The MAC-2 entities of the MAC-2 entities and/or the corresponding protocol stack of non-anchor network element place system of corresponding protocol stack are also to descending
Packet is demultiplexed (demultiplex)；System corresponding protocol stack in anchor point network element place in the user equipment
The downlink data packet is sequentially passed through MAC-1 entities the RLC entities and PDCP entities of user equipment, is sent to application layer；
Wherein, packet complete combination is sent to the PDCP entities of itself according to the SN of rlc layer by the RLC entities,
The PDCP entities sequentially deliver a packet to application layer according to the SN of PDCP layers, and so, user equipment can have been received
Whole, orderly packet.
The present embodiment further comprises a kind of sending method of upstream data in joint transmission, and the method includes：
User equipment send upstream data bag when, by system corresponding protocol stack in anchor point network element place in itself
Upstream data bag is distributed to each MAC-2 entities in itself by MAC-1 entities；
Upstream data bag is sent to anchor point network element and/or non-anchor network element by physical layer by the MAC-2 entities.
The present embodiment further comprises a kind of method of reseptance of upstream data in joint transmission, and the method includes：
The physical layer of anchor point network element and/or non-anchor network element obtains the upstream data bag that user equipment sends, by being located at
The MAC-2 entities of itself are sent to the MAC-1 entities positioned at anchor point network element；
The upstream data bag is sequentially passed through the MAC-1 entities positioned at anchor point network element the RLC of the anchor point network element
Entity is sent to PDCP entities.
In order to realize said method, the present invention also provides a kind of network element side network element of data transfer in joint transmission, the network element side network element
Including：Anchor point network element and non-anchor network element；Wherein,
The anchor point network element and non-anchor network element adopt the Data Transport Protocol framework of MAC layer packet distribution, the number
Include the MAC-1 entities and MAC-2 entities positioned at anchor point network element according to the MAC layer of host-host protocol framework, and be located at non-anchor net
The MAC-2 entities of unit；
The anchor point network element, in joint transmission data, distributing downlink data by the MAC-1 entities positioned at itself
Each MAC-2 entities are wrapped, the downlink data packet that the MAC-1 entities for receiving are distributed is sent to user and is set by the MAC-2 entities of itself
It is standby；
The non-anchor network element, for the downlink data distributed the MAC-1 entities for receiving by the MAC-2 entities of itself
Bag is sent to user equipment.
The anchor point network element, specifically in joint transmission data, by downlink data packet sequentially pass through PDCP entities and
RLC entities are sent to MAC-1 entities；The downlink data packet for receiving is distributed to by MAC-1 entities and is each positioned at anchor point network element
MAC-2 entities and the MAC-2 entities positioned at non-anchor network element.
The anchor point network element, is further used for by MAC-1 entities and data-interface, according to distribution policy set in advance
Distribute downlink data packet to each MAC-2 entities.
Based on said network element side, the present invention also provides a kind of user equipment of data transfer in joint transmission, and the user sets
It is standby to include：Packet receiving unit and protocol layer transmission unit；Wherein,
The user equipment arranges MAC-1 entities and MAC- in the corresponding protocol stack of therein anchor point network element place system
2 entities, at therein non-anchor network element place, the corresponding protocol stack of system arranges MAC-2 entities, and in -1 entity of self MAC
Data-interface is set up and MAC-2 entities between；
The packet receiving unit, for obtaining downlink data packet in physical layer；
Protocol layer transmission unit, for the MAC-2 by system corresponding protocol stack in anchor point network element place in user equipment
The downlink data packet of acquisition is sent to use by the MAC-2 entities of entity and/or the corresponding protocol stack of non-anchor network element place system
The MAC-1 entities of the corresponding protocol stack of anchor point network element place system in the equipment of family；By anchor point network element institute in the user equipment
The downlink data packet is sequentially passed through the RLC entities and PDCP of user equipment in the MAC-1 entities of system corresponding protocol stack
Entity, is sent to application layer.
The present invention also provides a kind of user equipment of data transfer in joint transmission, and the user equipment includes：Packet is sent out
Send unit；Wherein,
The user equipment arranges MAC-1 entities and MAC- in the corresponding protocol stack of therein anchor point network element place system
2 entities, at therein non-anchor network element place, the corresponding protocol stack of system arranges MAC-2 entities, and in -1 entity of self MAC
Data-interface is set up and MAC-2 entities between；
The packet transmitting element, for when upstream data bag is sent, being located by anchor point network element in user equipment
Upstream data bag is distributed to each MAC-2 entities, the MAC-2 in user equipment by the MAC-1 entities of the corresponding protocol stack of system
Upstream data bag is sent to anchor point network element and/or non-anchor network element by physical layer by entity.
The packet transmitting element, specifically for by system corresponding protocol stack in anchor point network element place in user equipment
MAC-1 entities and data-interface, according to distribution policy set in advance to the lower line number of each MAC-2 entities distribution in user equipment
According to bag；The distribution policy set in advance includes：Distribute the strategy of downlink data packet according to set proportion or according to wireless
Channel quality determines strategy of ratio of distribution downlink data packet etc..
Based on above-mentioned user equipment, the present invention also provides a kind of network element side network element of data transfer in joint transmission, the network element side network element
Including：Anchor point network element and non-anchor network element；Wherein,
The anchor point network element and non-anchor network element adopt the Data Transport Protocol framework of MAC layer packet distribution；
The MAC layer of the Data Transport Protocol framework includes the MAC-1 entities and MAC-2 entities positioned at anchor point network element, with
And positioned at the MAC-2 entities of non-anchor network element；
The anchor point network element, for when physical layer obtains the upstream data bag that user equipment sends, by positioned at itself
MAC-2 entities be sent to the MAC-1 entities positioned at itself；The upstream data bag for receiving is sequentially passed through by the MAC-1 entities
The RLC entities of the anchor point network element are sent to PDCP entities；
Non-anchor network element, for when physical layer obtains the upstream data bag that user equipment sends, by being located at itself
MAC-2 entities are sent to the MAC-1 entities positioned at anchor point network element.
The method of the present invention is described in detail with reference to specific embodiment and realizes process and principle.
Embodiment one
In the present embodiment, resident 1 jurisdiction district 1 of base station in the umts system of user equipment (UE) 1, in idle condition,
Base station 1 is administered by RNC.The cell 2 with cell 1 with identical covering (or overlapping covering) is administered by evolution base station 2, evolution base station
2 belong to LTE system.In the umts system, Iub interface is had between RNC and base station 1.As RNC may be with the evolution in LTE
Base station 2 implements new interface is established between joint transmission, therefore RNC and evolution base station 2, for transmitting data and control letter
Order.Interface between RNC and evolution base station 2 is set up can be by operation and maintenance (Operation ＆Maintenance) server
Implement.The method that the present embodiment realizes downlink data transmission in a kind of joint transmission, as shown in figure 4, the method include it is following several
Individual step：
Step 201, UE1 initiate Stochastic accessing in cell 1, send RRC connection request to RNC；
Step 202, RNC receive the connection request of UE1 transmissions, return RRC connection establishments (RRC Connection to UE1
Setup) signaling, includes Signaling Radio Bearer (SRB, Signaling Radio Bearer) in the RRC connection establishments signaling
Configuration parameter；
Step 203, the configuration parameter of SRB in UE1 application RRC connection establishment signalings send RRC connection establishments to RNC complete
Into (RRC Connection Setup Complete) signaling；
The RRC connection establishments also include the ability information of UE1 in completing signaling, i.e. UE1 supports the ability of joint transmission
Information.
So far, UE1 establishes RRC with RNC and is connected.
Step 204, UE1 send initial direct-sending (Initial Direct Transfer) signaling to RNC, wherein comprising non-
Access Layer signaling, i.e. service request；After RNC receives initial direct-sending signaling, service request is sent to into core net；
Step 205, after core net receives service request, to user equipment authority identification success after, to RNC return wireless access hold
Assignment request (Radio Access Bearer Assignment Request) is carried, wherein wireless comprising the data for needing to set up
Carry QoS parameter of (Data Radio Bearer) DRB1 etc..
In this step, the corresponding DRB1 for eating dishes without rice or wine of carrying of the RAB assignment request, in the present embodiment,
The message transmission rate that DRB1 needs is very high, i.e., the data rate for including in QoS parameter is very high.
Step 206, RNC detect the message transmission rate demand that the Radio Resource of cell 1 can not meet DRB1, RNC choosings
Cell 2 is selected as the Target cell of joint transmission, the Data Transport Protocol framework of RNC configuration self MAC layer packet distributions
User plane parameter, and joint transmission request is sent to evolution base station 2 by the interface between evolution base station 2；
In this step, the Data Transport Protocol framework of the MAC layer packet distribution of the RNC as shown in figure 5, including：
PDCP layers, rlc layer and MAC layer；Wherein, MAC layer includes the MAC-1 entities and MAC-2 entities positioned at RNC, and is located at evolution
The MAC-2 entities of base station 2；
The user plane parameter of the Data Transport Protocol framework of the RNC configurations self MAC layer packet distribution, specially：
The RNC configures the data of itself PDCP layer PDCP entities, rlc layer RLC entities, MAC layer MAC-1 entity and MAC-2 entities and passes
Defeated parameter, storage report parameter etc., wherein the storage report parameter is optional；
The cell identity information of the QoS parameter information and cell 2 of DRB1 is contained in the joint transmission request；
The Radio Resource and DRB1 that the RNC has been used according to cell 1 needs the Radio Resource for taking, and show that cell 1 is full
The foot not decision-making of DRB1 demands.
Further, the RNC sends measurement configuration to UE1, selects 2 conduct of cell according to the measurement report that UE1 is returned
The Target cell of joint transmission.
The present embodiment is not limited to be needed to set up the signaling title of cross-system joint transmission for representing, the present embodiment is not also limited
Determine MAC layer and be divided into two-part definite title, the present embodiment adopts the title of MAC-1 entities and MAC-2 entities, in practice,
Can be using other titles, such as MAC-Share entities and MAC-Schedule entities etc., wherein MAC-1 entities or MAC-
Share entities possess the function of packet distribution, and MAC-2 entities or MAC-Schedule entities possess the function of scheduling of resource,
MAC-2 entities or MAC-Schedule entities scheduling resources send packet by physical layer.
Step 207, after evolution base station 2 receives joint transmission request, receives the request, and UE1 is wireless in cell 2 for distribution
Resource, is responded to RNC the Radio Resource for returning distribution, and arranges the MAC-2 entities for UE1 at itself by joint transmission；
The Radio Resource that distribution is returned to RNC at least includes one below：It is RNTI, scrambler in cell 2, random
Access parameter, physical layer configuration parameter etc..
Step 208, after RNC receives the joint transmission response of the return of evolution base station 2, distributes wireless moneys of the UE1 in cell 1
Source, sends carrying to UE1 by RRC signaling and sets up signaling, and it is the wireless of UE1 distribution that the carrying is set up and RNC is included in signaling
Resource and the Radio Resource that evolution base station 2 is UE1 distribution；
The carrying is set up signaling and can be multiplexed existing RRC signaling, such as radio bearer set up, or radio bearer match somebody with somebody again
Put, or RRC connections reconfigure, it is also possible to newly increase RRC signaling, it is use that the RRC signaling is carried in each joint transmission system
The Radio Resource of family equipment distribution.
Step 209, UE1 are received after carrying sets up signaling, are obtained evolution base station 2 and for the Radio Resource and RNC of UE1 configurations are
The Radio Resource of UE1 configurations, configures the user plane parameter of the Data Transport Protocol framework of MAC layer packet distribution；
In this step, inside UE1, possess the corresponding protocol stack of UMTS system and the corresponding protocol stack of LTE system, UE1 exists
The corresponding protocol stack of UMTS system arranges -1 entity of self MAC and MAC-2 entities, arranges certainly in the corresponding protocol stack of LTE system
Body MAC-2 entities, and data-interface is set up between -1 entity of self MAC and MAC-2 entities；UE1 configures the PDCP layers of itself
The data transmission parameters of PDCP entities, rlc layer RLC entities, MAC layer MAC-1 entity and MAC-2 entities, storage report parameter etc.,
Wherein described storage report parameter is optional.
Herein it should be noted that in step 209, UE1 can include Stochastic accessing in receiving the Radio Resource of cell 2
Resource, the random access resource are distributed by evolution base station 2, are sent to UE1 via RNC, and UE1 is according to the random access resource little
Initiate Stochastic accessing and obtain uplink synchronous in area 2.
In view of operator in the network of layout joint transmission, in order to reduce synchronization of the user equipment in different system
Problem, UMTS system and LTE system are deployed to synchronous regime, i.e. UE1 after acquirement is synchronous with UMTS, automatically obtain and LTE
The synchronization of system, such UE1 need not be implemented Stochastic accessing in cell 2 and obtain uplink synchronous, and now cell 2 is UE1 distribution
Radio Resource can not include random access resource.
Step 210：In joint transmission data, the MAC-1 entities positioned at RNC are distributed to downlink data packet positioned at RNC
With the MAC-2 entities of evolution base station 2；
Specifically, in joint transmission data, the downlink data packet of RNC sequentially passes through PDCP entities and RLC entities, generates
RLC PDU are sent to MAC-1 entities by RLC PDU, RLC entity；The RLC PDU are MAC after reaching MAC-1 entities
The downlink data packet for receiving is distributed to respectively according to distribution policy set in advance by SDU, the MAC-1 entities by data-interface
MAC-2 entities positioned at RNC and the MAC-2 entities positioned at base station 2.Here, downlink data packet sequentially passes through PDCP entities and RLC
The function such as after entity, have been carried out encrypting, be segmented, also, for the orderly transmission of downlink data packet, PDCP entities and RLC realities
Body increases respective SN to downlink data packet.
Step 211：The downlink data packet for receiving is sent to UE1 by the MAC-2 entities for receiving downlink data packet；
Specifically, the MAC-2 entities in the RNC and evolution base station 2 will be received respectively when downlink data packet is received
Downlink data packet multiplexing after, be sent to the physical layer of UE1.
Step 212：UE1 will obtain partial data after the packet combining of acquisition.
Specifically, the downlink data packet that the physical layer of UE1 will be obtained, by the corresponding protocol stack of therein UMTS system
MAC-2 entities and/or the corresponding protocol stack of LTE system MAC-2 entities, be sent to the corresponding agreement of UMTS system in UE1
The MAC-1 entities of stack, here, the MAC-2 entities and/or LTE system pair of the corresponding protocol stack of the therein UMTS system
The MAC-2 entities of the protocol stack answered also are demultiplexed to downlink data packet；The corresponding protocol stack of UMTS system in the UE1
The downlink data packet is sequentially passed through MAC-1 entities the RLC entities and PDCP entities of UE1, is sent to application layer；
Wherein, packet complete combination is sent to the PDCP entities of itself according to the SN of rlc layer by the RLC entities,
The PDCP entities sequentially deliver a packet to application layer according to the SN of PDCP layers, so, UE1 can receive completely, have
The packet of sequence.
In the present embodiment, RNC is anchor point network element, and the evolution base station 2 of LTE system is non-anchor network element.
Embodiment two
In the present embodiment, user equipment (UE) 2 is in connection status by LTE system access network, and UE2 accesses evolution base station
3 jurisdiction districts 3, i.e. evolution base station 3 establish RRC connections for UE2.Base station 4 in UMTS system is administered by RNC, base station 4
Jurisdiction district 4 and the covering area overlapping of cell 3.
The application scenarios of the present embodiment are：UE2 has been set up data radio bearer (DRB, a Data Radio
Bearer), represented with DRB 1 below.If UE2 needs newly-built data radio bearer DRB2, and evolution base station 3 is without enough
The resource new DRB2 that meets UE2 QoS parameter demand when, as evolution base station 3 has been obtained in UE2 access networks
Know that UE2 possesses the ability for supporting joint transmission, therefore evolution base station 3 is desirable for the mode of joint transmission and UE2 is obtained
Obtain more Radio Resources.The measurement report that evolution base station 3 is reported by UE2, knows that UE2 measures the signal quality of cell 4 and surpasses
Predetermined thresholding is crossed, evolution base station 3 is that UE2 configures joint transmission.The method of downlink data transmission in the present embodiment joint transmission,
As shown in fig. 6, including following step：
Step 301, the user plane ginseng of the Data Transport Protocol framework of the configuration self MAC layer packet distribution of evolution base station 3
Number, sends joint transmission request to RNC by the interface between RNC；
In this step, the Data Transport Protocol framework of the MAC layer packet distribution of the evolution base station 3 is as shown in fig. 7, bag
Include：PDCP layers, rlc layer and MAC layer；Wherein, MAC layer includes the MAC-1 entities and MAC-2 entities positioned at evolution base station 3, and
Positioned at the MAC-2 entities of RNC；
The user plane parameter of the Data Transport Protocol framework of the configuration self MAC layer packet distribution of the evolution base station 3, tool
Body is：The evolution base station 3 configures itself PDCP layer PDCP entities, rlc layer RLC entities, MAC layer MAC-1 entity and MAC-2 realities
The data transmission parameters of body, storage report parameter etc.；
The cell identity information of the QoS parameter information comprising DRB2 and cell 4 in the joint transmission request.
Step 302, after RNC receives joint transmission request, receives the request, distributes Radio Resources of the UE2 in cell 4, leads to
Cross joint transmission and respond to evolution base station 3 Radio Resource for returning distribution, and the MAC-2 entities for UE2 are set at itself, match somebody with somebody
Put data transmission parameters, storage report parameter of MAC-2 entities etc.；
The Radio Resource that distribution is returned to evolution base station 3 be included in cell 4 or RNC in RNTI, scrambler, connect at random
Enter parameter, physical layer configuration parameter etc.；
In this step, Radio Resources of the distribution UE2 in cell 4, usually according to the QoS parameter of DRB2 point
With UE2 in the Radio Resource of cell 4, the DRB2 data transportation requirements of user equipment are met as far as possible.
Step 303, after evolution base station 3 receives the joint transmission response of RNC returns, distributes UE2 wireless moneys in cell 3
Source, sends carrying to UE2 by RRC signaling and sets up signaling, and the carrying is set up in signaling and configured for UE2 comprising evolution base station 3
Radio Resource and RNC be UE2 configuration Radio Resource；
Radio Resource described in this step within the cell 4 at least includes one below：RNTI within the cell 4, scrambler, with
Machine access parameter or physical layer configuration parameter etc..
Step 304, UE2 are received after carrying sets up signaling, and obtaining Radio Resource and RNC that evolution base station 3 is UE2 configurations is
The Radio Resource of UE2 configurations, configures the user plane parameter of the Data Transport Protocol framework of MAC layer packet distribution；
Described in this step, user plane parameter includes：The PDCP layer PDCP entities of UE2, rlc layer RLC entities, MAC layer MAC-1
The data transmission parameters of entity and MAC-2 entities, storage report parameter etc..
Step 305：In joint transmission data, downlink data packet is distributed to position by the MAC-1 entities positioned at evolution base station 3
In the MAC-2 entities of RNC and evolution base station 3；
Specifically, in joint transmission data, the downlink data packet of evolution base station 3 sequentially passes through PDCP entities and RLC realities
Body, generates RLC PDU, and RLC PDU are sent to MAC-1 entities by RLC entities；The RLC PDU are after reaching MAC-1 entities
The downlink data packet for receiving is distributed according to distribution policy set in advance by MAC SDU, the MAC-1 entities by data-interface
To the MAC-2 entities for being each positioned at RNC and the MAC-2 entities positioned at base station 3.Here, downlink data packet sequentially passes through PDCP entities
After RLC entities, the function such as have been carried out encrypting, be segmented, also, for the orderly transmission of downlink data packet, PDCP entities and
RLC entities increase respective SN to downlink data packet.
Step 306：The downlink data packet for receiving is sent to UE2 by the MAC-2 entities for receiving downlink data packet；
Specifically, the MAC-2 entities in the RNC and evolution base station 3 will be received respectively when downlink data packet is received
Downlink data packet multiplexing after, be sent to the physical layer of UE2.
Step 307：UE2 obtains partial data after the downlink data packet of acquisition is merged.
Specifically, the downlink data packet that the physical layer of UE2 will be obtained, by the corresponding protocol stack of therein UMTS system
MAC-2 entities and/or the corresponding protocol stack of LTE system MAC-2 entities, be sent to the corresponding protocol stack of LTE system in UE2
MAC-1 entities, here, the MAC-2 entities and/or LTE system correspondence of the corresponding protocol stack of the therein UMTS system
The MAC-2 entities of protocol stack also downlink data packet is demultiplexed；The corresponding protocol stack of LTE system in the UE2
The downlink data packet is sequentially passed through MAC-1 entities the RLC entities and PDCP entities of UE2, is sent to application layer；
Wherein, packet complete combination is sent to the PDCP entities of itself according to the SN of rlc layer by the RLC entities,
The PDCP entities sequentially deliver a packet to application layer according to the SN of PDCP layers, so, UE2 can receive completely, have
The downlink data packet of sequence.
In the present embodiment, evolution base station 3 is anchor point network element, and RNC is non-anchor network element.
The present embodiment also has other implementations, if UE2 uses HSPA technologies in UMTS sides, MAC-2 entities can be with
Positioned at base station 4, the downlink data packet of user can be transmitted in base station 3 by the interface between RNC, then again by RNC by with
Interface between base station 4 passes to base station 4, and the MAC-2 entities in base station 4 are responsible for scheduling of resource, and downlink data packet is sent to
UE2；Or direct interface between base station 3 and base station 4, is set up, the lower line number of user is transmitted in base station 3 by the interface to base station 4
According to bag, the MAC-2 entities in base station 4 are responsible for scheduling of resource, downlink data packet are sent to UE2.
In the present embodiment, the MAC-1 entities are by data-interface by the downlink data packet for receiving according to set in advance
Distribution policy is distributed to the MAC-2 entities and the MAC-2 entities positioned at base station 3 for being each positioned at RNC, usually：MAC-1 entities according to
The ratio packet distribution or MAC-1 entities of setting determines the ratio of distribution downlink data packet according to quality of wireless channel, such as：
MAC-1 entities dynamically adjust the ratio of downlink data packet distribution according to the quality of wireless channel of cell 3 and cell 4 measured by UE2
Example, if cell 3 is identical with the quality of wireless channel of cell 4, can be according to 1: 1 ratio distribution downlink data packet；If
The quality of wireless channel of cell 3 more preferably, then can pass through with some downlink data packets of overabsorption to the MAC-2 entities positioned at base station 3
The good link transmission data of quality of wireless channel can obtain higher handling capacity.
The above, only presently preferred embodiments of the present invention is not intended to limit protection scope of the present invention.
Claims (17)
1. in a kind of joint transmission downlink data sending method, it is characterised in that the method includes：
Participate in the data of anchor point network element and non-anchor network element using medium education (MAC) layer packet distribution of joint transmission
Host-host protocol framework；
The MAC layer of the Data Transport Protocol framework includes the MAC-1 entities and MAC-2 entities positioned at anchor point network element, Yi Jiwei
In the MAC-2 entities of non-anchor network element；
In joint transmission data, downlink data packet is distributed to each MAC-2 realities by the MAC-1 entities positioned at anchor point network element
The downlink data packet for receiving is sent to user equipment by body, the MAC-2 entities for receiving downlink data packet.
2. method according to claim 1, it is characterised in that the Data Transport Protocol frame of the MAC layer packet distribution
Structure also includes：PDCP (PDCP) layer and wireless spread-spectrum technology (RLC) layer；
Downlink data packet is sequentially passed through the anchor point network element RLC entities of the PDCP entities and rlc layer of PDCP layers, generates RLC
Protocol Data Unit (PDU)；RLC PDU are sent to RLC entities the MAC-1 entities of MAC layer.
3. method according to claim 1, it is characterised in that the MAC-1 entities positioned at anchor point network element are by lower line number
Each MAC-2 entities are distributed to according to bag, are：The MAC-1 entities are according to distribution policy set in advance by data-interface to each
MAC-2 entities distribute downlink data packet；
The distribution policy set in advance is：Distribute the strategy of downlink data packet according to set proportion or according to wireless communication
Road quality determines the strategy of the ratio of distribution downlink data packet.
4. method according to claim 1, it is characterised in that the method is further included：
Possesses system corresponding protocol stack in anchor point network element place inside the user equipment corresponding with non-anchor network element place system
Protocol stack, user equipment arranges MAC-1 entities and MAC-2 entities in the corresponding protocol stack of the anchor point network element place system,
In the non-anchor network element place system corresponding protocol stack, MAC-2 entities are set, and in -1 entity of self MAC and MAC-2 realities
Data-interface is set up between body.
5. method according to claim 4, it is characterised in that the method is further included：The physics of the user equipment
Layer obtains downlink data packet, by the MAC-2 entities of the corresponding protocol stack of therein anchor point network element place system and/or non-anchor
The downlink data packet of acquisition is sent to anchor point in user equipment by the MAC-2 entities of the corresponding protocol stack of point network element place system
The MAC-1 entities of the corresponding protocol stack of network element place system；
In the user equipment MAC-1 entities of the corresponding protocol stack of anchor point network element place system by the downlink data packet successively
Through the RLC entities and PDCP entities of user equipment, application layer is sent to.
6. method according to claim 4, it is characterised in that the method is further included：User equipment is sending up
During packet, upstream data bag is distributed to by the MAC-1 entities of system corresponding protocol stack in anchor point network element place in itself
Upstream data bag is sent to anchor point network element and/or non-anchor by physical layer by each MAC-2 entities in itself, the MAC-2 entities
Network element.
7. method according to claim 6, it is characterised in that the method is further included：The anchor point network element and/or non-
The physical layer of anchor point network element obtains the upstream data bag that user equipment sends, and is sent in place by the MAC-2 entities positioned at itself
In the MAC-1 entities of anchor point network element；
The upstream data bag is sequentially passed through the MAC-1 entities positioned at anchor point network element the RLC entities of the anchor point network element
It is sent to PDCP entities.
8. the method according to any one of claim 1 to 7, it is characterised in that the anchor point network element for user equipment
Set up the access network elements of the system that wireless heterogeneous networks (RRC) connect.
9. method according to claim 8, it is characterised in that described the system that RRC is connected has been set up with user equipment to be
During UMTS (UMTS) system, RNC or base station of the anchor point network element for UMTS system；Or, it is described with
User equipment set up RRC connection system be Long Term Evolution (LTE) system when, the anchor point network element for LTE system evolution base
Stand.
10. in a kind of joint transmission downlink data method of reseptance, it is characterised in that the method includes：
User equipment arranges MAC-1 entities and MAC-2 entities in the corresponding protocol stack of therein anchor point network element place system,
System corresponding protocol stack in therein non-anchor network element place arranges MAC-2 entities, and in -1 entity of self MAC and MAC-2
Data-interface is set up between entity；
The physical layer of user equipment obtains downlink data packet, by the corresponding protocol stack of therein anchor point network element place system
The MAC-2 entities of MAC-2 entities and/or the corresponding protocol stack of non-anchor network element place system, the downlink data packet for obtaining is sent out
Give the MAC-1 entities of system corresponding protocol stack in anchor point network element place in user equipment；
In the user equipment MAC-1 entities of the corresponding protocol stack of anchor point network element place system by the downlink data packet successively
Through the RLC entities and PDCP entities of user equipment, application layer is sent to.
The sending method of upstream data in a kind of 11. joint transmissions, it is characterised in that the method includes：
User equipment arranges MAC-1 entities and MAC-2 entities in the corresponding protocol stack of therein anchor point network element place system,
System corresponding protocol stack in therein non-anchor network element place arranges MAC-2 entities, and in -1 entity of self MAC and MAC-2
Data-interface is set up between entity；
User equipment send upstream data bag when, by the MAC-1 of system corresponding protocol stack in anchor point network element place in itself
Upstream data bag is distributed to each MAC-2 entities in itself by entity, and upstream data bag is sent out by the MAC-2 entities by physical layer
To anchor point network element and/or non-anchor network element.
The method of reseptance of upstream data in a kind of 12. joint transmissions, it is characterised in that the method includes：
Participate in the Data Transport Protocol framework of anchor point network element and non-anchor network element using MAC layer packet distribution of joint transmission；
The MAC layer of the Data Transport Protocol framework includes the MAC-1 entities and MAC-2 entities positioned at anchor point network element, Yi Jiwei
In the MAC-2 entities of non-anchor network element；
The physical layer of anchor point network element and/or non-anchor network element obtains the upstream data bag that user equipment sends, by positioned at itself
MAC-2 entities be sent to the MAC-1 entities positioned at anchor point network element；
The upstream data bag is sequentially passed through the MAC-1 entities positioned at anchor point network element the RLC entities of the anchor point network element
It is sent to PDCP entities.
The network element side network element of data transfer in a kind of 13. joint transmissions, it is characterised in that the network element side network element includes：Anchor point network element and non-anchor
Point network element；Wherein,
The anchor point network element and non-anchor network element adopt the Data Transport Protocol framework of MAC layer packet distribution, the data to pass
The MAC layer of defeated protocol infrastructure includes the MAC-1 entities and MAC-2 entities positioned at anchor point network element, and positioned at non-anchor network element
MAC-2 entities；
The anchor point network element, in joint transmission data, distributing downlink data packet by the MAC-1 entities positioned at itself and arriving
The downlink data packet that the MAC-1 entities for receiving are distributed is sent to user equipment by each MAC-2 entities, the MAC-2 entities of itself；
The non-anchor network element, the downlink data packet for being distributed the MAC-1 entities for receiving by the MAC-2 entities of itself are sent out
Give user equipment.
14. network element side network elements according to claim 13, it is characterised in that the anchor point network element, specifically in joint transmission
During data, downlink data packet is sequentially passed through into PDCP entities and RLC entities are sent to MAC-1 entities；To be received by MAC-1 entities
To downlink data packet be distributed to the MAC-2 entities and the MAC-2 entities positioned at non-anchor network element that are each positioned at anchor point network element.
The user equipment of data transfer in a kind of 15. joint transmissions, it is characterised in that the user equipment includes：Packet is received
Unit and protocol layer transmission unit；Wherein,
The user equipment arranges MAC-1 entities and MAC-2 realities in the corresponding protocol stack of therein anchor point network element place system
Body, at therein non-anchor network element place, the corresponding protocol stack of system arranges MAC-2 entities, and in -1 entity of self MAC and
Data-interface is set up between MAC-2 entities；
The packet receiving unit, for obtaining downlink data packet in physical layer；
Protocol layer transmission unit, for the MAC-2 entities by system corresponding protocol stack in anchor point network element place in user equipment
And/or the MAC-2 entities of the corresponding protocol stack of non-anchor network element place system, the downlink data packet of acquisition is sent to into user and is set
The MAC-1 entities of the corresponding protocol stack of standby interior anchor point network element place system；By system that anchor point network element in the user equipment is located
The downlink data packet is sequentially passed through the MAC-1 entities of corresponding protocol stack of uniting the RLC entities and PDCP entities of user equipment,
It is sent to application layer.
The user equipment of data transfer in a kind of 16. joint transmissions, it is characterised in that the user equipment includes：Packet sends
Unit；Wherein,
The user equipment arranges MAC-1 entities and MAC-2 realities in the corresponding protocol stack of therein anchor point network element place system
Body, at therein non-anchor network element place, the corresponding protocol stack of system arranges MAC-2 entities, and in -1 entity of self MAC and
Data-interface is set up between MAC-2 entities；
The packet transmitting element, for when upstream data bag is sent, by anchor point network element place system in user equipment
Upstream data bag is distributed to each MAC-2 entities in user equipment, the MAC-2 entities by the MAC-1 entities of corresponding protocol stack
Upstream data bag is sent to by anchor point network element and/or non-anchor network element by physical layer.
The network element side network element of data transfer in a kind of 17. joint transmissions, it is characterised in that the network element side network element includes：Anchor point network element and non-anchor
Point network element；Wherein,
The anchor point network element and non-anchor network element adopt the Data Transport Protocol framework of MAC layer packet distribution；
The MAC layer of the Data Transport Protocol framework includes the MAC-1 entities and MAC-2 entities positioned at anchor point network element, Yi Jiwei
In the MAC-2 entities of non-anchor network element；
The anchor point network element, for when physical layer obtains the upstream data bag that user equipment sends, by being located at itself
MAC-2 entities are sent to the MAC-1 entities positioned at itself；The upstream data bag for receiving is sequentially passed through institute by the MAC-1 entities
The RLC entities for stating anchor point network element are sent to PDCP entities；
Non-anchor network element, for when physical layer obtains the upstream data bag that user equipment sends, by positioned at the MAC-2 of itself
Entity is sent to the MAC-1 entities positioned at anchor point network element.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110171606.8A CN102843730B (en) | 2011-06-23 | 2011-06-23 | Method for transmitting data, network element side and UE (User Equipment) in joint transmission |
| PCT/CN2012/072214 WO2012174889A1 (en) | 2011-06-23 | 2012-03-12 | Method for transmitting data in joint transmission, network element side and user equipment |
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| CN201110171606.8A CN102843730B (en) | 2011-06-23 | 2011-06-23 | Method for transmitting data, network element side and UE (User Equipment) in joint transmission |
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| CN104322099B (en) * | 2013-04-26 | 2018-10-19 | 华为技术有限公司 | Service shunting method, apparatus and system |
| CN104320812B (en) * | 2014-10-13 | 2018-12-28 | 中国联合网络通信集团有限公司 | A kind of method, apparatus and system of joint transmission |
| WO2017045100A1 (en) * | 2015-09-14 | 2017-03-23 | 华为技术有限公司 | Data transmission method based on multiple base stations and multiple carriers, and base stations |
| WO2017117776A1 (en) * | 2016-01-07 | 2017-07-13 | Telefonaktiebolaget Lm Ericsson (Publ) | Methods and devices for downlink flow control in wireless communication systems |
| CN110649942A (en) * | 2018-06-27 | 2020-01-03 | 华为技术有限公司 | Joint transmission method and device |
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| WO2010131850A2 (en) * | 2009-05-11 | 2010-11-18 | 엘지전자 주식회사 | Method and apparatus for transmitting and receiving duplicate data in a multicarrier wireless communication system |
| US8804633B2 (en) * | 2009-11-05 | 2014-08-12 | Innovative Sonic Corporation | Method and apparatus to trigger a random access procedure for carrier aggregation in a wireless communication network |
| CN102014515B (en) * | 2009-12-31 | 2014-01-29 | 电信科学技术研究院 | Random access method, equipment and system |
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| WO2006101812A2 (en) * | 2005-03-22 | 2006-09-28 | Interdigital Technology Corporation | Method and apparatus for rate compatible dirty paper coding |
| CN101064728A (en) * | 2006-04-30 | 2007-10-31 | 中兴通讯股份有限公司 | TD-SCDMA system based random access controlling method |
| CN101179476A (en) * | 2006-11-09 | 2008-05-14 | 大唐移动通信设备有限公司 | Method, device and system for transmitting MBMS service using HSDPA |
| US20090175214A1 (en) * | 2008-01-02 | 2009-07-09 | Interdigital Technology Corporation | Method and apparatus for cooperative wireless communications |
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