CN102843730A - Method for transmitting data, network element side and UE (User Equipment) in joint transmission - Google Patents

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

The method of transfer of data, network element side and subscriber equipment in the joint transmission

Technical field

The present invention relates to third generation affiliate (3GPP) technology of the communications field, relate in particular to method, network element side and the subscriber equipment of transfer of data in a kind of joint transmission.

Background technology

The framework of existing 3GPP connecting system; As shown in Figure 1; Comprise wireless access mesh portions and core net part; Wherein the wireless access mesh portions comprises 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 all with core network element GPRS serving GPRS support node (SGSN; Serving GPRS Support Node) links to each other; The Access Network of LTE and core network element Mobility Management Entity (MME, Mobility Management Entity) link to each other.GERAN is meant base station sub-system (BSS, Base Station Subsystem), and BSS comprises base station controller (BSC, Base Station Controller) and base station (BS, Base Station); The access network elements of UMTS comprises radio network controller (RNC, Radio Network Controller) and base station (NodeB); The access network elements of LTE is evolution base station (eNB, Evolved NodeB).Subscriber equipment (UE, User Equipment) in order to ensure connected state can move between different connecting systems freely, has the S3 interface between SGSN and the MME, and this interface can be realized the switching of subscriber equipment between different access systems.

In order to realize higher transmission rate, 3GPP has proposed the technical scheme of carrier aggregation (Carrier Aggregation), utilizes a plurality of carrier waves to be the subscriber equipment service simultaneously.Existing carrier aggregation scheme mainly utilizes a plurality of carrier waves in the triangular web for subscriber equipment service to be provided simultaneously; (each carrier wave can be sub-district independently as utilizing carrier wave more than 2 or 2 among the UMTS; Also can be the resource carrier wave that transfer of data only is provided) keep communicating by letter with subscriber equipment simultaneously, perhaps utilize the carrier wave more than 2 or 2 to keep communicating by letter with subscriber equipment simultaneously among the LTE.Yet in the network of reality, because the number of carrier frequencies quantitative limitation, some mobile operator do not have enough frequencies to dispose a plurality of UMTS and LTE system simultaneously, and mobile operator can be according to the subscriber equipment quantity adjustment UMTS of access network and the carrier frequency number of LTE.Because long-term co-existence is understood by UMTS system and LTE system, when transmission rate that the capacity (restriction of carrier frequency) of individual system is not enough to provide high, people have expected adopting the scheme of different system combined transmission; This also can be called the carrier aggregation of interdepartmental system; As shown in Figure 2, subscriber equipment adopts two kinds of access technologies simultaneously, sets up two wireless links and is used to transmit data; Article one, be the Radio Link of the evolution base station of subscriber equipment and LTE; Another is the Radio Link of base station and RNC in subscriber equipment and the UMTS system, and this not only can obtain higher throughput, and can reach effect of load balance preferably.Before the scheme that does not adopt joint transmission; Load balancing between system can only be implemented through the method for switching, being redirected; If adopt the scheme of joint transmission; Network side can be adjusted the transmission rate of each subscriber equipment on different links dynamically according to the load of different access systems, can better realize load balancing.

When subscriber equipment adopts the scheme of joint transmission; User that it must possesses the ability of the hardware and software of supporting two kinds of access technologies simultaneously; Under the joint transmission mode, need to solve data and how to transmit through two systems, how to guarantee the problem of complete orderly transmission data.

Summary of the invention

In view of this; Main purpose of the present invention is to provide method, network element side and the subscriber equipment of transfer of data in a kind of joint transmission; Data transmission problems when having solved subscriber equipment and inserting two systems simultaneously; Help the rational distributing data of network side, help to improve the speed of the transfer of data of subscriber equipment.

For achieving the above object, technical scheme of the present invention is achieved in that

The sending method of downlink data in a kind of joint transmission provided by the invention, this method comprises:

Participate in the anchor point network element of joint transmission and the Data Transport Protocol framework that non-anchor point network element adopts medium access controls (MAC) layer packet distribution;

The MAC layer of said Data Transport Protocol framework comprises MAC-1 entity and the MAC-2 entity that is positioned at the anchor point network element, and the MAC-2 entity that is positioned at non-anchor point network element;

When the joint transmission data, the said MAC-1 entity that is positioned at the anchor point network element is distributed to each MAC-2 entity with downlink data packet, and the MAC-2 entity that receives downlink data packet sends to subscriber equipment with the downlink data packet of receiving.

In the such scheme, the Data Transport Protocol framework of said MAC layer packet distribution also comprises: PDCP (PDCP, Packet Data Convergence Protocol) layer and Radio Link control (RLC, Radio Link Control) layer;

Said anchor point network element passes through the PDCP entity of PDCP layer and the RLC entity of rlc layer successively with downlink data packet, generates rlc protocol data cell (PDU, Protocol Data Unit); The RLC entity sends to RLC PDU the MAC-1 entity of MAC layer.

In the such scheme, the said MAC-1 entity that is positioned at the anchor point network element is distributed to each MAC-2 entity with downlink data packet, for: said MAC-1 entity is distributed downlink data packet through data-interface to each MAC-2 entity according to predefined distribution policy;

Said predefined distribution policy is: the strategy that determines the ratio of distribution downlink data packet according to the strategy of the ratio distribution downlink data packet of setting or according to quality of wireless channel.

In the such scheme, this method further comprises:

Said subscriber equipment inside possesses anchor point network element place system's corresponding protocols stack and non-anchor point network element place system corresponding protocols stack; System's corresponding protocols stack is provided with MAC-1 entity and MAC-2 entity to subscriber equipment at said anchor point network element place; System's corresponding protocols stack is provided with the MAC-2 entity at said non-anchor point network element place, and between self MAC-1 entity and MAC-2 entity, sets up data-interface.

In the such scheme; This method further comprises: the physical layer of said subscriber equipment obtains downlink data packet; Through the MAC-2 entity of self inner anchor point network element place system corresponding protocols stack and/or the MAC-2 entity of non-anchor point network element place system corresponding protocols stack, the downlink data packet that obtains is sent to the MAC-1 entity of system corresponding protocols stack in anchor point network element place in the subscriber equipment;

The MAC-1 entity of anchor point network element place system corresponding protocols stack passes through the RLC entity and the PDCP entity of subscriber equipment successively with said downlink data packet in the said subscriber equipment, sends to application layer.

In the such scheme; This method further comprises: subscriber equipment is when sending the upstream data bag; MAC-1 entity through system corresponding protocols stack in anchor point network element place in self is distributed to each MAC-2 entity in self with the upstream data bag, and said MAC-2 entity passes through physical layer with upstream data Bao Faxiang anchor point network element and/or non-anchor point network element.

In the such scheme, this method further comprises: the physical layer of said anchor point network element and/or non-anchor point network element obtains the upstream data bag that subscriber equipment sends, and sends to the MAC-1 entity that is positioned at the anchor point network element through the MAC-2 entity that is positioned at self;

The said MAC-1 entity that is positioned at the anchor point network element sends to the PDCP entity through the RLC entity of said anchor point network element successively with said upstream data bag.

In the such scheme, said anchor point network element is for set up the access network elements of the system that Radio Resource control (RRC) is connected with subscriber equipment.

In the such scheme, said when subscriber equipment is set up system that RRC is connected and is the UMTS system, RNC or base station that said anchor point network element is the UMTS system; Perhaps, said when subscriber equipment is set up system that RRC is connected and is the LTE system, said anchor point network element is the evolution base station of LTE system.

The method of reseptance of downlink data in a kind of joint transmission provided by the invention, this method comprises:

Subscriber equipment is provided with MAC-1 entity and MAC-2 entity at self inner anchor point network element place system corresponding protocols stack; At self inner non-anchor point network element place system corresponding protocols stack the MAC-2 entity is set, and between self MAC-1 entity and MAC-2 entity, sets up data-interface;

The physical layer of subscriber equipment obtains downlink data packet; Through the MAC-2 entity of self inner anchor point network element place system corresponding protocols stack and/or the MAC-2 entity of non-anchor point network element place system corresponding protocols stack, the downlink data packet that obtains is sent to the MAC-1 entity of system corresponding protocols stack in anchor point network element place in the subscriber equipment;

The MAC-1 entity of anchor point network element place system corresponding protocols stack passes through the RLC entity and the PDCP entity of subscriber equipment successively with said downlink data packet in the said subscriber equipment, sends to application layer.

The sending method of upstream data in a kind of joint transmission provided by the invention, this method comprises:

Subscriber equipment is provided with MAC-1 entity and MAC-2 entity at self inner anchor point network element place system corresponding protocols stack; At self inner non-anchor point network element place system corresponding protocols stack the MAC-2 entity is set, and between self MAC-1 entity and MAC-2 entity, sets up data-interface;

Subscriber equipment is when sending the upstream data bag; MAC-1 entity through system corresponding protocols stack in anchor point network element place in self is distributed to each MAC-2 entity in self with the upstream data bag, and said MAC-2 entity passes through physical layer with upstream data Bao Faxiang anchor point network element and/or non-anchor point network element.

The method of reseptance of upstream data in a kind of joint transmission provided by the invention, this method comprises:

Participate in the anchor point network element of joint transmission and the Data Transport Protocol framework that non-anchor point network element adopts MAC layer packet distribution;

The MAC layer of said Data Transport Protocol framework comprises MAC-1 entity and the MAC-2 entity that is positioned at the anchor point network element, and the MAC-2 entity that is positioned at non-anchor point network element;

The physical layer of anchor point network element and/or non-anchor point network element obtains the upstream data bag that subscriber equipment sends, and sends to the MAC-1 entity that is positioned at the anchor point network element through the MAC-2 entity that is positioned at self;

The said MAC-1 entity that is positioned at the anchor point network element sends to the PDCP entity through the RLC entity of said anchor point network element successively with said upstream data bag.

The network element side of transfer of data in a kind of joint transmission provided by the invention, this network element side comprises: anchor point network element and non-anchor point network element; Wherein,

Said anchor point network element and non-anchor point network element adopt the Data Transport Protocol framework of MAC layer packet distribution, and the MAC layer of said Data Transport Protocol framework comprises MAC-1 entity and the MAC-2 entity that is positioned at the anchor point network element, and the MAC-2 entity that is positioned at non-anchor point network element;

Said anchor point network element is used for when the joint transmission data, arrives each MAC-2 entity through the MAC-1 entity distribution downlink data packet that is positioned at self, and the MAC-2 entity of self sends to subscriber equipment with the downlink data packet of the MAC-1 entity distribution of receiving;

Said non-anchor point network element is used for sending to subscriber equipment through the downlink data packet that the MAC-2 entity of self is distributed the MAC-1 entity of receiving.

In the such scheme, said anchor point network element specifically is used for when the joint transmission data, and downlink data packet is sent to the MAC-1 entity through PDCP entity and RLC entity successively; The downlink data packet of receiving is distributed to MAC-2 entity that is each positioned at the anchor point network element and the MAC-2 entity that is positioned at non-anchor point network element through the MAC-1 entity.

The subscriber equipment of transfer of data in a kind of joint transmission provided by the invention, this subscriber equipment comprises: packet receiving element and protocol layer transmission unit; Wherein,

Said subscriber equipment is provided with MAC-1 entity and MAC-2 entity at self inner anchor point network element place system corresponding protocols stack; At self inner non-anchor point network element place system corresponding protocols stack the MAC-2 entity is set, and between self MAC-1 entity and MAC-2 entity, sets up data-interface;

Said packet receiving element is used for obtaining downlink data packet in physical layer;

The protocol layer transmission unit; Be used for the downlink data packet that obtains being sent to the MAC-1 entity of system corresponding protocols stack in anchor point network element place in the subscriber equipment through the MAC-2 entity of system corresponding protocols stack in anchor point network element place in the subscriber equipment and/or the MAC-2 entity of non-anchor point network element place system corresponding protocols stack; MAC-1 entity through system corresponding protocols stack in anchor point network element place in the said subscriber equipment passes through the RLC entity and the PDCP entity of subscriber equipment successively with said downlink data packet, sends to application layer.

The subscriber equipment of transfer of data in a kind of joint transmission provided by the invention, this subscriber equipment comprises: the packet transmitting element; Wherein,

Said subscriber equipment is provided with MAC-1 entity and MAC-2 entity at self inner anchor point network element place system corresponding protocols stack; At self inner non-anchor point network element place system corresponding protocols stack the MAC-2 entity is set, and between self MAC-1 entity and MAC-2 entity, sets up data-interface;

Said packet transmitting element; Be used for when sending the upstream data bag; MAC-1 entity through system corresponding protocols stack in anchor point network element place in the subscriber equipment is distributed to each MAC-2 entity in the subscriber equipment with the upstream data bag, and said MAC-2 entity passes through physical layer with upstream data Bao Faxiang anchor point network element and/or non-anchor point network element.

The network element side of transfer of data in a kind of joint transmission provided by the invention, this network element side comprises: anchor point network element and non-anchor point network element; Wherein,

Said anchor point network element and non-anchor point network element adopt the Data Transport Protocol framework of MAC layer packet distribution;

The MAC layer of said Data Transport Protocol framework comprises MAC-1 entity and the MAC-2 entity that is positioned at the anchor point network element, and the MAC-2 entity that is positioned at non-anchor point network element;

Said anchor point network element is used for when physical layer obtains the upstream data bag of subscriber equipment transmission, sending to the MAC-1 entity that is positioned at self through the MAC-2 entity that is positioned at self; Said MAC-1 entity sends to the PDCP entity through the RLC entity of said anchor point network element successively with the upstream data bag of receiving;

Non-anchor point network element is used for when physical layer obtains the upstream data bag of subscriber equipment transmission, sending to the MAC-1 entity that is positioned at the anchor point network element through the MAC-2 entity that is positioned at self.

The invention provides method, network element side and the subscriber equipment of transfer of data in a kind of joint transmission, participate in the anchor point network element of joint transmission and the Data Transport Protocol framework that non-anchor point network element adopts MAC layer packet distribution; The MAC layer of said Data Transport Protocol framework comprises MAC-1 entity and the MAC-2 entity that is positioned at the anchor point network element, and the MAC-2 entity that is positioned at non-anchor point network element; When the joint transmission data, the said MAC-1 entity that is positioned at the anchor point network element is distributed to each MAC-2 entity with downlink data packet, and the MAC-2 entity that receives downlink data packet sends to subscriber equipment with the downlink data packet of receiving; So, solve the data transmission problems under the joint transmission mode, helped the rational distributing data of network side, improved the speed of the transfer of data of subscriber equipment.

Description of drawings

Fig. 1 is the configuration diagram of existing third generation partner program connecting system;

Fig. 2 is the structural representation that subscriber equipment adopts joint transmission in the prior art;

Fig. 3 realizes the schematic flow sheet of the sending method of downlink data in a kind of joint transmission for the present invention;

Fig. 4 is the schematic flow sheet that the embodiment of the invention one realizes downlink data transmitting method in the joint transmission;

Fig. 5 is the Data Transport Protocol configuration diagram of the MAC layer packet distribution of RNC in the embodiment of the invention one;

Fig. 6 is the schematic flow sheet that the embodiment of the invention two realizes downlink data transmitting method in the joint transmission;

Fig. 7 is the Data Transport Protocol configuration diagram of the MAC layer packet distribution of evolution base station 3 in the embodiment of the invention two.

Embodiment

Basic thought of the present invention is: participate in the anchor point network element of joint transmission and the Data Transport Protocol framework that non-anchor point network element adopts MAC layer packet distribution; The MAC layer of said Data Transport Protocol framework comprises MAC-1 entity and the MAC-2 entity that is positioned at the anchor point network element, and the MAC-2 entity that is positioned at non-anchor point network element; When the joint transmission data, the said MAC-1 entity that is positioned at the anchor point network element is distributed to each MAC-2 entity with downlink data packet, and the MAC-2 entity that receives downlink data packet sends to subscriber equipment with the downlink data packet of receiving.

Through accompanying drawing and specific embodiment the present invention is done further detailed description below.

The present invention realizes the sending method of downlink data in a kind of joint transmission, and is as shown in Figure 3, and this method comprises following step:

Step 101: participate in the anchor point network element of joint transmission and the Data Transport Protocol framework that non-anchor point network element adopts medium access controls (MAC) layer packet distribution;

In this step, the Data Transport Protocol framework of said MAC layer packet distribution comprises: PDCP layer, rlc layer and MAC layer; Wherein, said MAC layer comprises MAC-1 entity and the MAC-2 entity that is positioned at the anchor point network element, and the MAC-2 entity that is positioned at non-anchor point network element, communicates by letter through data-interface between said MAC-1 entity and the MAC-2 entity;

Concrete, when joint transmission disposed, anchor point network element, non-anchor point network element and user device configuration adopted the user plane parameter of the Data Transport Protocol framework of MAC layer packet distribution;

Said anchor point network element, non-anchor point network element and user device configuration adopt the user plane parameter of the Data Transport Protocol framework of MAC layer packet distribution; Comprise: after the anchor point network element is confirmed to carry out joint transmission; The user plane parameter of the Data Transport Protocol framework of MAC layer packet distribution is adopted in configuration; Said user plane parameter comprises: the data transmission parameters of PDCP layer PDCP entity, rlc layer RLC entity, MAC layer MAC-1 entity and MAC-2 entity, storage report parameter (BSR; Buffer Status Report) etc., and to non-anchor point network element send the joint transmission request; After said non-anchor point network element is received the joint transmission request, the MAC-2 entity to said subscriber equipment is set at self; The carrying that subscriber equipment sends according to the anchor point network element is set up or is reshuffled signaling and knows and carry out joint transmission, then disposes the user plane parameter of the Data Transport Protocol framework that self adopts MAC layer packet distribution.

Said user device configuration self adopts the user plane parameter of the Data Transport Protocol framework of MAC layer packet distribution; Comprise: the data transmission parameters of PDCP layer PDCP entity, rlc layer RLC entity, MAC layer MAC-1 entity and the MAC-2 entity of configure user equipment, storage report parameter etc., wherein said storage report parameter is optional; Said subscriber equipment inside possesses anchor point network element place system's corresponding protocols stack and non-anchor point network element place system corresponding protocols stack; System's corresponding protocols stack is provided with self MAC-1 entity and MAC-2 entity to subscriber equipment at said anchor point network element place; System's corresponding protocols stack is provided with self MAC-2 entity at said non-anchor point network element place, and between self MAC-1 entity and MAC-2 entity, sets up data-interface.

Step 102: when the joint transmission data, the MAC-1 entity that is positioned at the anchor point network element is distributed to each MAC-2 entity with downlink data packet;

Concrete, when the joint transmission data, the downlink data packet of anchor point network element is passed through PDCP entity and RLC entity successively, generates RLC PDU, and the RLC entity sends to the MAC-1 entity with RLC PDU; Said RLC PDU is MAC SDU after arriving the MAC-1 entity, and said MAC-1 entity is distributed to the downlink data packet of receiving through data-interface MAC-2 entity that is each positioned at the anchor point network element and the MAC-2 entity that is positioned at non-anchor point network element.Here, downlink data packet has realized functions such as encryption, segmentation after passing through PDCP entity and RLC entity successively; And; For the orderly transmission of downlink data packet, PDCP entity and RLC entity are to downlink data packet increase sequence number (SN, Sequence Number) separately.

In this step; Said MAC-1 entity is distributed to the downlink data packet of receiving through data-interface MAC-2 entity that is each positioned at the anchor point network element and the MAC-2 entity that is positioned at non-anchor point network element; Generally be: said MAC-1 entity is distributed downlink data packet through data-interface to each MAC-2 entity according to predefined distribution policy; As: anchor point network element and non-anchor point network element place system are respectively UMTS system and LTE system; Said predefined distribution policy is according to the ratio distribution downlink data packet of setting; When supposing that the ratio of setting is 1 to 1, the MAC-1 entity sends to the MAC-2 entity of UMTS system with descending 50% downlink data packet, and other 50% downlink data packet sends to the MAC-2 entity of LTE system; Perhaps; Said predefined distribution policy is the ratio according to quality of wireless channel decision distribution downlink data packet; Then the MAC-1 entity obtains the quality of wireless channel of anchor point network element and non-anchor point network element place system according to the measurement report of subscriber equipment; Wherein, the ratio that quality of wireless channel divides preferably is big, and the ratio of the branch that quality of wireless channel is relatively poor is little; For example; The quality of wireless channel that the MAC-1 entity obtains anchor point network element place system according to the measurement report of subscriber equipment is not suitable for transmitting the quality of wireless channel of data, non-anchor point network element place system when better, and the MAC-1 entity is to the MAC-2 entity distribution downlink data packet that is positioned at the anchor point network element, to the MAC-2 entity distribution downlink data packet that is positioned at non-anchor point network element; When the quality of wireless channel that the MAC-1 entity obtains better, the non-anchor point network element of the quality of wireless channel place system of anchor point network element place system according to the measurement report of subscriber equipment is not suitable for transmitting data; The MAC-1 entity is to the MAC-2 entity distribution downlink data packet that is positioned at the anchor point network element, not to the MAC-2 entity distribution downlink data packet that is positioned at non-anchor point network element; The MAC-1 entity obtains anchor point network element place system according to the measurement report of subscriber equipment quality of wireless channel all is fit to the transmission data with the quality of wireless channel of non-anchor point network element place system but the quality of wireless channel of anchor point network element place system when being better than the quality of wireless channel of non-anchor point network element place system, the MAC-1 entity to the ratio of the MAC-2 entity distribution downlink data packet that is positioned at the anchor point network element greater than the ratio of distributing downlink data packet to the MAC-2 entity that is positioned at non-anchor point network element; Or the like.

In the present embodiment, said anchor point network element is for set up the access network elements of the system that RRC is connected with subscriber equipment; Said when subscriber equipment is set up system that RRC is connected and is the UMTS system, RNC or base station that said anchor point network element is the UMTS system; Perhaps, said when subscriber equipment is set up system that RRC is connected and is the LTE system, the evolution base station that said anchor point network element is the LTE system etc.

In this step, when user device configuration inserted (HSPA) technical transmission data for adopting high-speed packet, promptly up was that high speed uplink packet inserts (HSUPA; High Speed Uplink Packet Access); Descending is that high speed downlink packet inserts (HSDPA, High Speed Downlink Packet Access), and the time slot of the spreading code that subscriber equipment uses, use spreading code etc. are by base stations control; Then in the UMTS system, said MAC-2 entity is arranged on the base station of UMTS system; When subscriber equipment was not configured to adopt HSPA technical transmission data, in the UMTS system, said MAC-2 entity was arranged on the RNC of UMTS system.

Step 103: the MAC-2 entity that receives downlink data packet sends to subscriber equipment with the downlink data packet of receiving;

Concrete, the MAC-2 entity that receives downlink data packet with the downlink data packet of receiving multiplexing after, send to the physical layer of subscriber equipment; The said MAC-2 entity that receives downlink data packet can be the MAC-2 entity that is positioned at the MAC-2 entity of anchor point network element and/or is positioned at non-anchor point network element.

Present embodiment further comprises the method for reseptance of downlink data in a kind of joint transmission, and this method comprises:

The physical layer of subscriber equipment is with the downlink data packet that obtains; Through the MAC-2 entity of self inner anchor point network element place system corresponding protocols stack and/or the MAC-2 entity of non-anchor point network element place system corresponding protocols stack; Send to the MAC-1 entity of system corresponding protocols stack in anchor point network element place in the subscriber equipment; Here, the MAC-2 entity of said self inner anchor point network element place system corresponding protocols stack and/or the MAC-2 entity of non-anchor point network element place system corresponding protocols stack also carry out demultiplexing (demultiplex) to downlink data packet; The MAC-1 entity of anchor point network element place system corresponding protocols stack passes through the RLC entity and the PDCP entity of subscriber equipment successively with said downlink data packet in the said subscriber equipment, sends to application layer;

Wherein, The combination that packet is complete sends to self PDCP entity to said RLC entity according to the SN of rlc layer, and said PDCP entity sends to application layer with packet according to the order of sequence according to the SN of PDCP layer; Like this, subscriber equipment can receive complete, orderly packet.

Present embodiment further comprises the sending method of upstream data in a kind of joint transmission, and this method comprises:

Subscriber equipment is when sending the upstream data bag, and the MAC-1 entity that belongs to system's corresponding protocols stack through anchor point network element in self is distributed to each MAC-2 entity in self with the upstream data bag;

Said MAC-2 entity passes through physical layer with upstream data Bao Faxiang anchor point network element and/or non-anchor point network element.

Present embodiment further comprises the method for reseptance of upstream data in a kind of joint transmission, and this method comprises:

The physical layer of anchor point network element and/or non-anchor point network element obtains the upstream data bag that subscriber equipment sends, and sends to the MAC-1 entity that is positioned at the anchor point network element through the MAC-2 entity that is positioned at self;

The said MAC-1 entity that is positioned at the anchor point network element sends to the PDCP entity through the RLC entity of said anchor point network element successively with said upstream data bag.

In order to realize said method, the present invention also provides the network element side of transfer of data in a kind of joint transmission, and this network element side comprises: anchor point network element and non-anchor point network element; Wherein,

Said anchor point network element and non-anchor point network element adopt the Data Transport Protocol framework of MAC layer packet distribution, and the MAC layer of said Data Transport Protocol framework comprises MAC-1 entity and the MAC-2 entity that is positioned at the anchor point network element, and the MAC-2 entity that is positioned at non-anchor point network element;

Said anchor point network element is used for when the joint transmission data, arrives each MAC-2 entity through the MAC-1 entity distribution downlink data packet that is positioned at self, and the MAC-2 entity of self sends to subscriber equipment with the downlink data packet of the MAC-1 entity distribution of receiving;

Said non-anchor point network element is used for sending to subscriber equipment through the downlink data packet that the MAC-2 entity of self is distributed the MAC-1 entity of receiving.

Said anchor point network element specifically is used for when the joint transmission data, and downlink data packet is sent to the MAC-1 entity through PDCP entity and RLC entity successively; The downlink data packet of receiving is distributed to MAC-2 entity that is each positioned at the anchor point network element and the MAC-2 entity that is positioned at non-anchor point network element through the MAC-1 entity.

Said anchor point network element is further used for through MAC-1 entity and data-interface, distributes downlink data packet according to predefined distribution policy to each MAC-2 entity.

Based on the said network element side, the present invention also provides the subscriber equipment of transfer of data in a kind of joint transmission, and this subscriber equipment comprises: packet receiving element and protocol layer transmission unit; Wherein,

Said subscriber equipment is provided with MAC-1 entity and MAC-2 entity at self inner anchor point network element place system corresponding protocols stack; At self inner non-anchor point network element place system corresponding protocols stack the MAC-2 entity is set, and between self MAC-1 entity and MAC-2 entity, sets up data-interface;

Said packet receiving element is used for obtaining downlink data packet in physical layer;

The protocol layer transmission unit; Be used for the downlink data packet that obtains being sent to the MAC-1 entity of system corresponding protocols stack in anchor point network element place in the subscriber equipment through the MAC-2 entity of system corresponding protocols stack in anchor point network element place in the subscriber equipment and/or the MAC-2 entity of non-anchor point network element place system corresponding protocols stack; MAC-1 entity through system corresponding protocols stack in anchor point network element place in the said subscriber equipment passes through the RLC entity and the PDCP entity of subscriber equipment successively with said downlink data packet, sends to application layer.

The present invention also provides the subscriber equipment of transfer of data in a kind of joint transmission, and this subscriber equipment comprises: the packet transmitting element; Wherein,

Said subscriber equipment is provided with MAC-1 entity and MAC-2 entity at self inner anchor point network element place system corresponding protocols stack; At self inner non-anchor point network element place system corresponding protocols stack the MAC-2 entity is set, and between self MAC-1 entity and MAC-2 entity, sets up data-interface;

Said packet transmitting element; Be used for when sending the upstream data bag; MAC-1 entity through system corresponding protocols stack in anchor point network element place in the subscriber equipment is distributed to each MAC-2 entity in the subscriber equipment with the upstream data bag, and said MAC-2 entity passes through physical layer with upstream data Bao Faxiang anchor point network element and/or non-anchor point network element.

Said packet transmitting element specifically is used for MAC-1 entity and data-interface through system corresponding protocols stack in anchor point network element place in the subscriber equipment, according to predefined distribution policy each MAC-2 entity distribution downlink data packet in subscriber equipment; Said predefined distribution policy comprises: according to the strategy of the ratio distribution downlink data packet of setting or according to the strategy of the ratio of quality of wireless channel decision distribution downlink data packet etc.

Based on above-mentioned subscriber equipment, the present invention also provides the network element side of transfer of data in a kind of joint transmission, and this network element side comprises: anchor point network element and non-anchor point network element; Wherein,

Said anchor point network element and non-anchor point network element adopt the Data Transport Protocol framework of MAC layer packet distribution;

The MAC layer of said Data Transport Protocol framework comprises MAC-1 entity and the MAC-2 entity that is positioned at the anchor point network element, and the MAC-2 entity that is positioned at non-anchor point network element;

Said anchor point network element is used for when physical layer obtains the upstream data bag of subscriber equipment transmission, sending to the MAC-1 entity that is positioned at self through the MAC-2 entity that is positioned at self; Said MAC-1 entity sends to the PDCP entity through the RLC entity of said anchor point network element successively with the upstream data bag of receiving;

Non-anchor point network element is used for when physical layer obtains the upstream data bag of subscriber equipment transmission, sending to the MAC-1 entity that is positioned at the anchor point network element through the MAC-2 entity that is positioned at self.

Specify the implementation procedure and the principle of method of the present invention below in conjunction with specific embodiment.

Embodiment one

In the present embodiment, user equipment (UE) 1 resides in 1 jurisdiction district 1, base station in the UMTS system, is in idle condition, and base station 1 is administered by RNC.The sub-district 2 that has identical covering (or overlapping covering) with sub-district 1 is administered by evolution base station 2, and evolution base station 2 belongs to the LTE system.In the UMTS system, have Iub interface between RNC and the base station 1.Because RNC possibly implement joint transmission with the evolution base station 2 among the LTE, so has set up new interface between RNC and the evolution base station 2, is used for Data transmission and control signaling.Interface between RNC and the evolution base station 2 is set up can be by operation and maintenance (Operation &Maintenance) server implementation.Present embodiment is realized downlink data transmitting method in a kind of joint transmission, and is as shown in Figure 4, and this method comprises following step:

Step 201,1 initiation inserts UE1 at random in the sub-district, sends the RRC connection request to RNC;

Step 202, RNC accepts the connection request that UE1 sends, and returns RRC to UE1 and connects foundation (RRC Connection Setup) signaling, and the configuration parameter that comprises Signaling Radio Bearer (SRB, Signaling Radio Bearer) in the signaling is set up in said RRC connection;

Step 203, UE1 uses RRC and connects the configuration parameter of setting up SRB in the signaling, sends RRC connection foundation to RNC and accomplishes (RRC Connection Setup Complete) signaling;

Said RRC connects foundation and accomplishes the ability information that also comprises UE1 in the signaling, and promptly UE1 supports the ability information of joint transmission.

So far, UE1 has set up RRC with RNC and has been connected.

Step 204, UE1 sends initial direct-sending (Initial Direct Transfer) signaling to RNC, wherein comprises the Non-Access Stratum signaling, i.e. service request; RNC sends to core net with service request after receiving the initial direct-sending signaling;

Step 205; After core net is received service request; After the user equipment authority identification success; Return RAB assignment request (Radio Access Bearer Assignment Request) to RNC, wherein comprise the QoS parameter of Data Radio Bearer (the Data Radio Bearer) DRB1 that needs set up etc.

In this step, the DRB1 that the carrying correspondence of said RAB assignment request is eated dishes without rice or wine, in the present embodiment, the message transmission rate that DRB1 needs is very high, and the data rate that promptly comprises in the QoS parameter is very high.

Step 206; The Radio Resource that RNC detects sub-district 1 has satisfied not the message transmission rate demand of DRB1; RNC selects the Target cell of sub-district 2 as joint transmission; The user plane parameter of the Data Transport Protocol framework of RNC configuration self MAC layer packet distribution, and through and evolution base station 2 between interface send the joint transmission requests to evolution base station 2;

In this step, the Data Transport Protocol framework of the MAC layer packet distribution of said RNC is as shown in Figure 5, comprising: PDCP layer, rlc layer and MAC layer; Wherein, the MAC layer comprises MAC-1 entity and the MAC-2 entity that is positioned at RNC, and the MAC-2 entity that is positioned at evolution base station 2;

The user plane parameter of the Data Transport Protocol framework of said RNC configuration self MAC layer packet distribution; Be specially: the data transmission parameters of said RNC configuration self PDCP layer PDCP entity, rlc layer RLC entity, MAC layer MAC-1 entity and MAC-2 entity, storage report parameter etc., wherein said storage report parameter is optional;

The QoS parameter information of DRB1 and the cell identity information of sub-district 2 have been comprised in the said joint transmission request;

The Radio Resource that Radio Resource that said RNC has used according to sub-district 1 and DRB1 needs take draws sub-district 1 and has satisfied not the decision-making of DRB1 demand.

Further, said RNC sends measurement configuration to UE1, selects the Target cell of sub-district 2 as joint transmission according to the measurement report that UE1 returns.

Present embodiment is not defined for the signaling title that expression need be set up interdepartmental system joint transmission; Present embodiment does not limit MAC layer definite title divided into two parts yet; Present embodiment adopts the title of MAC-1 entity and MAC-2 entity, in reality, can adopt other title; Like MAC-Share entity and MAC-Schedule entity etc.; Wherein MAC-1 entity or MAC-Share entity possess the function of packet distribution, and MAC-2 entity or MAC-Schedule entity possess the function of scheduling of resource, and MAC-2 entity or MAC-Schedule entity scheduling resource send packet through physical layer.

Step 207 after evolution base station 2 is received the joint transmission request, is accepted and should be asked, and distributes the Radio Resource of UE1 in sub-district 2, returns assigned radio resource through the joint transmission response to RNC, and at self the MAC-2 entity to UE1 is set;

Saidly return assigned radio resource to RNC and comprise one of following at least: the RNTI in sub-district 2, scrambler, random access parameter, physical layer configuration parameter etc.

Step 208; After RNC receives the joint transmission response that evolution base station 2 returns; Distribute the Radio Resource of UE1 in sub-district 1; Send to carry to UE1 through the RRC signaling and to set up signaling, said carrying sets up that to comprise RNC in the signaling be that UE1 assigned radio resource and evolution base station 2 are the UE1 assigned radio resource;

Signaling is set up in said carrying can multiplexing existing RRC signaling; Set up or radio bearer is reshuffled or RRC connects and reshuffles like radio bearer; Also can increase the RRC signaling newly, this RRC signaling is carried at and is the Radio Resource of user equipment allocation in each joint transmission system.

Step 209, after UE1 received that signaling is set up in carrying, obtaining evolution base station 2 was the Radio Resource of UE1 configuration for Radio Resource and the RNC that UE1 disposes, the user plane parameter of the Data Transport Protocol framework of configuration MAC layer packet distribution;

In this step; UE1 inside possesses UMTS system corresponding protocols stack and LTE system corresponding protocols stack; UE1 is provided with self MAC-1 entity and MAC-2 entity at UMTS system corresponding protocols stack; At LTE system corresponding protocols stack self MAC-2 entity is set, and between self MAC-1 entity and MAC-2 entity, sets up data-interface; The data transmission parameters of PDCP layer PDCP entity, rlc layer RLC entity, MAC layer MAC-1 entity and the MAC-2 entity of UE1 configuration self, storage report parameter etc., wherein said storage report parameter is optional.

Need to prove here; In step 209, UE1 receives in the Radio Resource of sub-district 2 can comprise random access resource, and this random access resource is distributed by evolution base station 2; Send to UE1 via RNC, 2 initiations insert the acquisition uplink synchronous to UE1 at random in the sub-district according to this random access resource.

Consider that operator is when the network of layout joint transmission; In order to reduce the stationary problem of subscriber equipment in different system; The UMTS system becomes synchronous regime with the LTE system deployment, promptly UE1 obtain with UMTS synchronously after, obtain automatically with the LTE system synchronously; UE1 need 2 enforcements not insert the acquisition uplink synchronous in the sub-district at random like this, and this moment, sub-district 2 can not comprise random access resource for the UE1 assigned radio resource.

Step 210: when the joint transmission data, the MAC-1 entity that is positioned at RNC is distributed to downlink data packet the MAC-2 entity that is positioned at RNC and evolution base station 2;

Concrete, when the joint transmission data, the downlink data packet of RNC is passed through PDCP entity and RLC entity successively, generates RLC PDU, and the RLC entity sends to the MAC-1 entity with RLC PDU; Said RLC PDU is MAC SDU after arriving the MAC-1 entity, and said MAC-1 entity is distributed to the downlink data packet of receiving MAC-2 entity that is each positioned at RNC and the MAC-2 entity that is positioned at base station 2 through data-interface according to predefined distribution policy.Here, downlink data packet realized functions such as encryption, segmentation, and for the orderly transmission of downlink data packet, PDCP entity and RLC entity is to downlink data packet increase SN separately after passing through PDCP entity and RLC entity successively.

Step 211: the MAC-2 entity that receives downlink data packet sends to UE1 with the downlink data packet of receiving;

Concrete, the MAC-2 entity in said RNC and the evolution base station 2 when receiving downlink data packet, respectively with the downlink data packet of receiving multiplexing after, send to the physical layer of UE1.

Step 212:UE1 obtains partial data after the packet that obtains is merged.

Concrete; The physical layer of UE1 is with the downlink data packet that obtains; Through the MAC-2 entity of self inner UMTS system corresponding protocols stack and/or the MAC-2 entity of LTE system corresponding protocols stack; Send to the MAC-1 entity of UMTS system corresponding protocols stack in the UE1, here, the MAC-2 entity of said self inner UMTS system corresponding protocols stack and/or the MAC-2 entity of LTE system corresponding protocols stack also carry out demultiplexing to downlink data packet; The MAC-1 entity of UMTS system corresponding protocols stack passes through RLC entity and the PDCP entity of UE1 successively with said downlink data packet in the said UE1, sends to application layer;

Wherein, the combination that packet is complete sends to self PDCP entity to said RLC entity according to the SN of rlc layer, and said PDCP entity sends to application layer with packet according to the order of sequence according to the SN of PDCP layer, and like this, UE1 can receive complete, orderly packet.

In the present embodiment, RNC is the anchor point network element, and the evolution base station 2 of LTE system is non-anchor point network element.

Embodiment two

In the present embodiment, user equipment (UE) 2 is in connection status through LTE system access network, and UE2 inserts evolution base station 3 jurisdiction districts 3, and promptly evolution base station 3 has been set up the RRC connection for UE2.Base station 4 in the UMTS system is administered by RNC, the covering area overlapping of 4 jurisdiction districts 4, base station and sub-district 3.

The application scenarios of present embodiment is: UE2 has set up a Data Radio Bearer (DRB, Data Radio Bearer), below representes with DRB 1.If UE2 needs a newly-built Data Radio Bearer DRB2; And evolution base station 3 is not when having enough resources to satisfy the QoS parameter demand of new DRB2 of UE2; Because evolution base station 3 has been known UE2 and has been possessed the ability of supporting joint transmission when the UE2 access network, so evolution base station 3 hopes to use the mode of joint transmission to make UE2 can obtain more Radio Resource.Evolution base station 3 knows that through the measurement report that UE2 reports UE2 records the signal quality of sub-district 4 above predetermined thresholding, and evolution base station 3 is a UE2 configuration joint transmission.Downlink data transmitting method in the present embodiment joint transmission, as shown in Figure 6, comprise following step:

Step 301, the user plane parameter of the Data Transport Protocol framework of evolution base station 3 configuration self MAC layer packet distribution, through and RNC between interface send the joint transmission request to RNC;

In this step, the Data Transport Protocol framework of the MAC layer packet distribution of said evolution base station 3 is as shown in Figure 7, comprising: PDCP layer, rlc layer and MAC layer; Wherein, the MAC layer comprises MAC-1 entity and the MAC-2 entity that is positioned at evolution base station 3, and the MAC-2 entity that is positioned at RNC;

The user plane parameter of the Data Transport Protocol framework of said evolution base station 3 configuration self MAC layer packet distribution is specially: the data transmission parameters of said evolution base station 3 configurations self PDCP layer PDCP entity, rlc layer RLC entity, MAC layer MAC-1 entity and MAC-2 entity, storage report parameter etc.;

Comprise the QoS parameter information of DRB2 and the cell identity information of sub-district 4 in the said joint transmission request.

Step 302; After RNC receives the joint transmission request; Accepting should request, distribute UE2 in the sub-district 4 Radio Resource, return assigned radio resource through the joint transmission response to evolution base station 3; And at the MAC-2 entity that self is provided with to UE2, the data transmission parameters of configuration MAC-2 entity, storage report parameter etc.;

Saidly return assigned radio resource to evolution base station 3 and be included in RNTI among sub-district 4 or the RNC, scrambler, random access parameter, physical layer configuration parameter etc.;

In this step, said distribution UE2 is 4 Radio Resource in the sub-district, generally be QoS parameter according to DRB2 distribute UE2 in the sub-district 4 Radio Resource, the DRB2 transfer of data requirement of As soon as possible Promising Policy subscriber equipment.

Step 303; After evolution base station 3 is received the joint transmission response that RNC returns; Distribute the Radio Resource of UE2 in sub-district 3; Send to carry to UE2 through the RRC signaling and to set up signaling, said carrying sets up that to comprise evolution base station 3 in the signaling be the Radio Resource that UE2 disposes for the Radio Resource and the RNC of UE2 configuration;

It is one of following that the said Radio Resource in sub-district 4 of this step comprises at least: the RNTI in sub-district 4, scrambler, random access parameter or physical layer configuration parameter etc.

Step 304, after UE2 received that signaling is set up in carrying, obtaining evolution base station 3 was the Radio Resource of UE2 configuration for Radio Resource and the RNC that UE2 disposes, the user plane parameter of the Data Transport Protocol framework of configuration MAC layer packet distribution;

The said user plane parameter of this step comprises: the data transmission parameters of PDCP layer PDCP entity, rlc layer RLC entity, MAC layer MAC-1 entity and the MAC-2 entity of UE2, storage report parameter etc.

Step 305: when the joint transmission data, the MAC-1 entity that is positioned at evolution base station 3 is distributed to downlink data packet the MAC-2 entity that is positioned at RNC and evolution base station 3;

Concrete, when the joint transmission data, the downlink data packet of evolution base station 3 is passed through PDCP entity and RLC entity successively, generates RLC PDU, and the RLC entity sends to the MAC-1 entity with RLC PDU; Said RLC PDU is MAC SDU after arriving the MAC-1 entity, and said MAC-1 entity is distributed to the downlink data packet of receiving MAC-2 entity that is each positioned at RNC and the MAC-2 entity that is positioned at base station 3 through data-interface according to predefined distribution policy.Here, downlink data packet realized functions such as encryption, segmentation, and for the orderly transmission of downlink data packet, PDCP entity and RLC entity is to downlink data packet increase SN separately after passing through PDCP entity and RLC entity successively.

Step 306: the MAC-2 entity that receives downlink data packet sends to UE2 with the downlink data packet of receiving;

Concrete, the MAC-2 entity in said RNC and the evolution base station 3 when receiving downlink data packet, respectively with the downlink data packet of receiving multiplexing after, send to the physical layer of UE2.

Step 307:UE2 obtains partial data after the downlink data packet that obtains is merged.

Concrete; The physical layer of UE2 is with the downlink data packet that obtains; Through the MAC-2 entity of self inner UMTS system corresponding protocols stack and/or the MAC-2 entity of LTE system corresponding protocols stack; Send to the MAC-1 entity of LTE system corresponding protocols stack in the UE2, here, the MAC-2 entity of said self inner UMTS system corresponding protocols stack and/or the MAC-2 entity of LTE system corresponding protocols stack also carry out demultiplexing to downlink data packet; The MAC-1 entity of LTE system corresponding protocols stack passes through RLC entity and the PDCP entity of UE2 successively with said downlink data packet in the said UE2, sends to application layer;

Wherein, The combination that packet is complete sends to self PDCP entity to said RLC entity according to the SN of rlc layer, and said PDCP entity sends to application layer with packet according to the order of sequence according to the SN of PDCP layer; Like this, UE2 can receive complete, orderly downlink data packet.

In the present embodiment, evolution base station 3 is the anchor point network element, and RNC is non-anchor point network element.

Present embodiment also has other implementation; If UE2 uses the HSPA technology in the UMTS side; The MAC-2 entity can be positioned at base station 4, base station 3 can through and RNC between interface transmit user's downlink data packet, and then by RNC through and base station 4 between interface pass to base station 4; MAC-2 entity in the base station 4 is responsible for scheduling of resource, and downlink data packet is sent to UE2; Perhaps set up direct interface between base station 3 and the base station 4, base station 3 is transmitted user's downlink data packet through said interface to base station 4, and the MAC-2 entity in the base station 4 is responsible for scheduling of resource, and downlink data packet is sent to UE2.

In the present embodiment; Said MAC-1 entity is distributed to the downlink data packet of receiving MAC-2 entity that is each positioned at RNC and the MAC-2 entity that is positioned at base station 3 through data-interface according to predefined distribution policy; Generally be: the MAC-1 entity determines the ratio of distribution downlink data packet according to quality of wireless channel according to ratio packet distribution of setting or MAC-1 entity; As: the MAC-1 entity is adjusted the ratio of downlink data packet distribution dynamically according to the quality of wireless channel of measured sub-district 3 of UE2 and sub-district 4; If sub-district 3 is identical with the quality of wireless channel of sub-district 4, then can be according to 1: 1 ratio distribution downlink data packet; If the quality of wireless channel of sub-district 3 is better, then can some downlink data packet of overabsorption give the MAC-2 entity that is positioned at base station 3, the link transmission data good through quality of wireless channel can obtain higher throughput.

The above is merely preferred embodiment of the present invention, is not to be used to limit protection scope of the present invention.

Claims (17)

1. the sending method of downlink data in the joint transmission is characterized in that this method comprises:

Participate in the anchor point network element of joint transmission and the Data Transport Protocol framework that non-anchor point network element adopts medium access controls (MAC) layer packet distribution;

The MAC layer of said Data Transport Protocol framework comprises MAC-1 entity and the MAC-2 entity that is positioned at the anchor point network element, and the MAC-2 entity that is positioned at non-anchor point network element;

When the joint transmission data, the said MAC-1 entity that is positioned at the anchor point network element is distributed to each MAC-2 entity with downlink data packet, and the MAC-2 entity that receives downlink data packet sends to subscriber equipment with the downlink data packet of receiving.

2. method according to claim 1 is characterized in that, the Data Transport Protocol framework of said MAC layer packet distribution also comprises: PDCP (PDCP) layer and Radio Link control (RLC) layer;

Said anchor point network element passes through the PDCP entity of PDCP layer and the RLC entity of rlc layer successively with downlink data packet, generates rlc protocol data cell (PDU); The RLC entity sends to RLC PDU the MAC-1 entity of MAC layer.

3. method according to claim 1; It is characterized in that; The said MAC-1 entity that is positioned at the anchor point network element is distributed to each MAC-2 entity with downlink data packet, for: said MAC-1 entity is distributed downlink data packet through data-interface to each MAC-2 entity according to predefined distribution policy;

Said predefined distribution policy is: the strategy that determines the ratio of distribution downlink data packet according to the strategy of the ratio distribution downlink data packet of setting or according to quality of wireless channel.

4. method according to claim 1 is characterized in that, this method further comprises:

Said subscriber equipment inside possesses anchor point network element place system's corresponding protocols stack and non-anchor point network element place system corresponding protocols stack; System's corresponding protocols stack is provided with MAC-1 entity and MAC-2 entity to subscriber equipment at said anchor point network element place; System's corresponding protocols stack is provided with the MAC-2 entity at said non-anchor point network element place, and between self MAC-1 entity and MAC-2 entity, sets up data-interface.

5. method according to claim 4; It is characterized in that; This method further comprises: the physical layer of said subscriber equipment obtains downlink data packet; Through the MAC-2 entity of self inner anchor point network element place system corresponding protocols stack and/or the MAC-2 entity of non-anchor point network element place system corresponding protocols stack, the downlink data packet that obtains is sent to the MAC-1 entity of system corresponding protocols stack in anchor point network element place in the subscriber equipment;

The MAC-1 entity of anchor point network element place system corresponding protocols stack passes through the RLC entity and the PDCP entity of subscriber equipment successively with said downlink data packet in the said subscriber equipment, sends to application layer.

6. method according to claim 4; It is characterized in that; This method further comprises: subscriber equipment is when sending the upstream data bag; MAC-1 entity through system corresponding protocols stack in anchor point network element place in self is distributed to each MAC-2 entity in self with the upstream data bag, and said MAC-2 entity passes through physical layer with upstream data Bao Faxiang anchor point network element and/or non-anchor point network element.

7. method according to claim 6; It is characterized in that; This method further comprises: the physical layer of said anchor point network element and/or non-anchor point network element obtains the upstream data bag that subscriber equipment sends, and sends to the MAC-1 entity that is positioned at the anchor point network element through the MAC-2 entity that is positioned at self;

The said MAC-1 entity that is positioned at the anchor point network element sends to the PDCP entity through the RLC entity of said anchor point network element successively with said upstream data bag.

8. according to each described method of claim 1 to 7, it is characterized in that said anchor point network element is for set up the access network elements of the system that Radio Resource control (RRC) is connected with subscriber equipment.

9. method according to claim 8 is characterized in that, and is said when subscriber equipment is set up system that RRC is connected and is UMTS (UMTS) system, RNC or base station that said anchor point network element is the UMTS system; Perhaps, said when subscriber equipment is set up system that RRC is connected and is Long Term Evolution (LTE) system, said anchor point network element is the evolution base station of LTE system.

10. the method for reseptance of downlink data in the joint transmission is characterized in that this method comprises:

Subscriber equipment is provided with MAC-1 entity and MAC-2 entity at self inner anchor point network element place system corresponding protocols stack; At self inner non-anchor point network element place system corresponding protocols stack the MAC-2 entity is set, and between self MAC-1 entity and MAC-2 entity, sets up data-interface;

The physical layer of subscriber equipment obtains downlink data packet; Through the MAC-2 entity of self inner anchor point network element place system corresponding protocols stack and/or the MAC-2 entity of non-anchor point network element place system corresponding protocols stack, the downlink data packet that obtains is sent to the MAC-1 entity of system corresponding protocols stack in anchor point network element place in the subscriber equipment;

The MAC-1 entity of anchor point network element place system corresponding protocols stack passes through the RLC entity and the PDCP entity of subscriber equipment successively with said downlink data packet in the said subscriber equipment, sends to application layer.

11. the sending method of upstream data in the joint transmission is characterized in that this method comprises:

Subscriber equipment is provided with MAC-1 entity and MAC-2 entity at self inner anchor point network element place system corresponding protocols stack; At self inner non-anchor point network element place system corresponding protocols stack the MAC-2 entity is set, and between self MAC-1 entity and MAC-2 entity, sets up data-interface;

Subscriber equipment is when sending the upstream data bag; MAC-1 entity through system corresponding protocols stack in anchor point network element place in self is distributed to each MAC-2 entity in self with the upstream data bag, and said MAC-2 entity passes through physical layer with upstream data Bao Faxiang anchor point network element and/or non-anchor point network element.

12. the method for reseptance of upstream data in the joint transmission is characterized in that this method comprises:

Participate in the anchor point network element of joint transmission and the Data Transport Protocol framework that non-anchor point network element adopts MAC layer packet distribution;

The MAC layer of said Data Transport Protocol framework comprises MAC-1 entity and the MAC-2 entity that is positioned at the anchor point network element, and the MAC-2 entity that is positioned at non-anchor point network element;

The physical layer of anchor point network element and/or non-anchor point network element obtains the upstream data bag that subscriber equipment sends, and sends to the MAC-1 entity that is positioned at the anchor point network element through the MAC-2 entity that is positioned at self;

The said MAC-1 entity that is positioned at the anchor point network element sends to the PDCP entity through the RLC entity of said anchor point network element successively with said upstream data bag.

13. the network element side of transfer of data is characterized in that this network element side comprises: anchor point network element and non-anchor point network element in the joint transmission; Wherein,

Said anchor point network element and non-anchor point network element adopt the Data Transport Protocol framework of MAC layer packet distribution, and the MAC layer of said Data Transport Protocol framework comprises MAC-1 entity and the MAC-2 entity that is positioned at the anchor point network element, and the MAC-2 entity that is positioned at non-anchor point network element;

Said anchor point network element is used for when the joint transmission data, arrives each MAC-2 entity through the MAC-1 entity distribution downlink data packet that is positioned at self, and the MAC-2 entity of self sends to subscriber equipment with the downlink data packet of the MAC-1 entity distribution of receiving;

Said non-anchor point network element is used for sending to subscriber equipment through the downlink data packet that the MAC-2 entity of self is distributed the MAC-1 entity of receiving.

14. network element side according to claim 13 is characterized in that, said anchor point network element specifically is used for when the joint transmission data, and downlink data packet is sent to the MAC-1 entity through PDCP entity and RLC entity successively; The downlink data packet of receiving is distributed to MAC-2 entity that is each positioned at the anchor point network element and the MAC-2 entity that is positioned at non-anchor point network element through the MAC-1 entity.

15. the subscriber equipment of transfer of data is characterized in that this subscriber equipment comprises: packet receiving element and protocol layer transmission unit in the joint transmission; Wherein,

Said subscriber equipment is provided with MAC-1 entity and MAC-2 entity at self inner anchor point network element place system corresponding protocols stack; At self inner non-anchor point network element place system corresponding protocols stack the MAC-2 entity is set, and between self MAC-1 entity and MAC-2 entity, sets up data-interface;

Said packet receiving element is used for obtaining downlink data packet in physical layer;

The protocol layer transmission unit; Be used for the downlink data packet that obtains being sent to the MAC-1 entity of system corresponding protocols stack in anchor point network element place in the subscriber equipment through the MAC-2 entity of system corresponding protocols stack in anchor point network element place in the subscriber equipment and/or the MAC-2 entity of non-anchor point network element place system corresponding protocols stack; MAC-1 entity through system corresponding protocols stack in anchor point network element place in the said subscriber equipment passes through the RLC entity and the PDCP entity of subscriber equipment successively with said downlink data packet, sends to application layer.

16. the subscriber equipment of transfer of data is characterized in that this subscriber equipment comprises: the packet transmitting element in the joint transmission; Wherein,

Said subscriber equipment is provided with MAC-1 entity and MAC-2 entity at self inner anchor point network element place system corresponding protocols stack; At self inner non-anchor point network element place system corresponding protocols stack the MAC-2 entity is set, and between self MAC-1 entity and MAC-2 entity, sets up data-interface;

Said packet transmitting element; Be used for when sending the upstream data bag; MAC-1 entity through system corresponding protocols stack in anchor point network element place in the subscriber equipment is distributed to each MAC-2 entity in the subscriber equipment with the upstream data bag, and said MAC-2 entity passes through physical layer with upstream data Bao Faxiang anchor point network element and/or non-anchor point network element.

17. the network element side of transfer of data is characterized in that this network element side comprises: anchor point network element and non-anchor point network element in the joint transmission; Wherein,

Said anchor point network element and non-anchor point network element adopt the Data Transport Protocol framework of MAC layer packet distribution;

The MAC layer of said Data Transport Protocol framework comprises MAC-1 entity and the MAC-2 entity that is positioned at the anchor point network element, and the MAC-2 entity that is positioned at non-anchor point network element;

Said anchor point network element is used for when physical layer obtains the upstream data bag of subscriber equipment transmission, sending to the MAC-1 entity that is positioned at self through the MAC-2 entity that is positioned at self; Said MAC-1 entity sends to the PDCP entity through the RLC entity of said anchor point network element successively with the upstream data bag of receiving;

Non-anchor point network element is used for when physical layer obtains the upstream data bag of subscriber equipment transmission, sending to the MAC-1 entity that is positioned at the anchor point network element through the MAC-2 entity that is positioned at self.

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