CN104320812B - A kind of method, apparatus and system of joint transmission - Google Patents

A kind of method, apparatus and system of joint transmission Download PDF

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Publication number
CN104320812B
CN104320812B CN201410540142.7A CN201410540142A CN104320812B CN 104320812 B CN104320812 B CN 104320812B CN 201410540142 A CN201410540142 A CN 201410540142A CN 104320812 B CN104320812 B CN 104320812B
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China
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data packet
network element
communication system
discharge device
sent
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CN104320812A (en
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曹亘
范斌
韩潇
卢尧
孙雷
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China United Network Communications Group Co Ltd
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China United Network Communications Group Co Ltd
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
    • H04L69/30—Definitions, standards or architectural aspects of layered protocol stacks
    • H04L69/32—Architecture of open systems interconnection [OSI] 7-layer type protocol stacks, e.g. the interfaces between the data link level and the physical level
    • H04L69/322—Intralayer communication protocols among peer entities or protocol data unit [PDU] definitions
    • H04L69/324—Intralayer communication protocols among peer entities or protocol data unit [PDU] definitions in the data link layer [OSI layer 2], e.g. HDLC
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W80/00—Wireless network protocols or protocol adaptations to wireless operation
    • H04W80/02—Data link layer protocols

Abstract

The embodiment of the invention provides a kind of method, apparatus of joint transmission and systems, be related to mobile communication field, to realize different systems communication system to the transmission of the data of same mobile device during reduce as far as possible to communication system in the prior art can in hardware change.It include: to receive downlink data packet from core net；First downstream data packet is sent to the first network element, so that first downstream data packet is sent to UE by the first communication system, and second downstream data packet is sent to the second network element, so that second downstream data packet is sent to UE by the second communication system；Wherein, the first network element is for handling first downstream data packet according to the PDCP layer protocol in the first communication system, and the second network element is for handling second downstream data packet according to the PDCP layer protocol in the second communication system.

Description

A kind of method, apparatus and system of joint transmission
Technical field
The present invention relates to mobile communication field more particularly to the method, apparatus and system of a kind of joint transmission.
Background technique
With the development of wireless communication technique, communication system needs increasing transmission rate, to meet mobile device The requirement of transmission rate.
In order to realize the transmission of higher rate, 3GPP (The 3rdGeneration Partnership Project, the Three generations's partner program) propose carrier aggregation technology, using multiple carrier waves simultaneously to same UE (User Equipment, User equipment) mobile device services.But existing carrier aggregation technology can only be multiple in the communication system to same standard Carrier wave is polymerize, that is to say, that can only be passed using the communication system of a standard to the data of same UE in synchronization It is defeated.
In current communications systems, the communication system of multiple types, such as LTE (Long Term Evolution, long term evolution) (Wideband Code Division Multiple Access (wideband code division multiple access) system is common for a long time by system and WCDMA In the presence of.
LTE system and WCDMA system have identical layered protocol stack, are successively up PHY (physical from the bottom Layer, physical layer), MAC (Medium Access Control, medium access control) layer, RLC (Radio Link Control, wireless spread-spectrum technology) layer, PDCP (Packet Data Convergence Protocol, packet data convergence association View) layer, each layer carries out independent processing to data, has data interaction between each layer and adjacent layer.
In order to carry out transmission data using the communication system of different systems in synchronization for same UE, the prior art is proposed Different systems are passed through to user data in MAC layer or PHY layer communications system transmission.Illustratively, for downlink data, The data of the user are transmitted to the PDCP layer of LTE system by core net, through function treatments such as excessive compression, encryptions, after processing Data be transmitted to the rlc layer of LTE system and carry out the respective handling of rlc layer, then data are distributed, a part of data The MAC layer for being transmitted to LTE is handled, and the MAC layer that remainder data are transmitted to WCDMA is handled, then respective After PHY layer processing, the UE is sent data to by eating dishes without rice or wine.
It states during being carried out data transmission using different systems communication system to same mobile device, invents in realization At least there are the following problems in the prior art for people's discovery: since the function that different layers are realized is different, more leveling off to bottom and hardware Correlation it is bigger, function is realized more complicated, so being realized in the prior art by the MAC layer of lower level and PHY layer different The scheme of standard communication joint transmission, it is larger to the change of the hardware in communication system in the prior art, so that in reality It can be difficult to carry out because expense is excessive when during now.
Summary of the invention
The embodiment of the present invention provides the method, apparatus and system of a kind of different systems communication system joint transmission, realizes Different systems communication system is reduced to communication system in the prior art as far as possible during transmitting to the data of same mobile device System can in hardware change.
In order to achieve the above objectives, the embodiment of the present invention adopts the following technical scheme that
In a first aspect, the embodiment of the invention provides a kind of methods of joint transmission, comprising: polymerize discharge device from core Net receives downlink data packet；First downstream data packet in the downlink data packet is sent to first by the polymerization discharge device Network element, so that the first downstream data packet is sent to UE by the first communication system, and will be in the downlink data packet Second downstream data packet be sent to the second network element so that the second downstream data packet is sent by the second communication system To the UE；Wherein, first network element is located in first communication system, for according in first communication system PDCP layer protocol handles the first downstream data packet；Second network element is located in second communication system, uses In being handled according to the PDCP layer protocol in second communication system the second downstream data packet；Second downlink Data packet is the data packet in the downlink data packet in addition to the first downstream data packet.
Second aspect, the embodiment of the invention provides a kind of methods of joint transmission, comprising: network element receives polymerization distribution and sets The standby downlink data packet issued；The network element carries out the downlink data packet according to the PDCP layer protocol in affiliated communication system Processing, and by the communication system by the downstream packet transmission to UE.
The third aspect, the embodiment of the invention provides a kind of polymerization discharge devices, comprising: receiving unit is used for from core Net receives downlink data packet；Transmission unit, for the first downstream data packet in the downlink data packet to be sent to the first net Member, so that the first downstream data packet is sent to UE by the first communication system, and will be in the downlink data packet Second downstream data packet is sent to the second network element, so that being sent to the second downstream data packet by the second communication system The UE；Wherein, first network element is located in first communication system, for according in first communication system PDCP layer protocol handles the first downstream data packet；Second network element is located in second communication system, uses In being handled according to the PDCP layer protocol in second communication system the second downstream data packet；Second downlink Data packet is the data packet in the downlink data packet in addition to the first downstream data packet.
Fourth aspect, the embodiment of the invention provides a kind of network elements, comprising: receiving unit is set for receiving polymerization distribution The standby downlink data packet issued；That of processing is remote, for according to the PDCP layer protocol in affiliated communication system to the lower line number It is handled according to packet；Transmission unit, for by the communication system by the downstream packet transmission to UE.
5th aspect, the embodiment of the invention provides a kind of systems, comprising: polymerization discharge device, the first network element and second Network element；The polymerization discharge device is polymerization discharge device described in above-described embodiment；First network element is above-described embodiment The network element；Second network element is network element described in above-described embodiment.
The embodiment of the invention provides a kind of method, apparatus of joint transmission and systems, polymerize discharge device from core net Receive downlink data packet；First downstream data packet in downlink data packet is sent to the first network element, so that logical by first First downstream data packet is sent to UE by letter system, and the second downstream data packet in downlink data packet is sent to the second net Member, so that second downstream data packet is sent to the UE by the second communication system.Just can thus will from PDCP layers The data packet that core net issues in two different communication systems by being respectively processed.Due to respectively rlc layer, MAC layer, The processing of MAC layer, and be sent to UE process it is identical as process in the prior art, so the present embodiment is not needed to existing There are PDCP layers of framework below in technology to be changed, simultaneously because PDCP layers or more most processing is by software Form is handled, so the present invention is mainly changed the processing of software protocol function in the prior art, relative to Method in background technique greatly reduces the change of hardware.
Detailed description of the invention
In order to illustrate the technical solution of the embodiments of the present invention more clearly, below will be in embodiment or description of the prior art Required attached drawing is briefly described, it should be apparent that, the accompanying drawings in the following description is only some realities of the invention Example is applied, it for those of ordinary skill in the art, without creative efforts, can also be according to these attached drawings Obtain other attached drawings.
Fig. 1 is a kind of flow diagram of the method for joint transmission provided in an embodiment of the present invention；
Fig. 2 is communication system architecture schematic diagram in the prior art；
Fig. 3 is a kind of system architecture schematic diagram provided in an embodiment of the present invention；
Fig. 4 is another system architecture schematic diagram provided in an embodiment of the present invention；
Fig. 5 is another system architecture schematic diagram provided in an embodiment of the present invention；
Fig. 6 is the flow diagram of the method for another joint transmission provided in an embodiment of the present invention；
Fig. 7 is the flow diagram of the method for another joint transmission provided in an embodiment of the present invention；
Fig. 8 is the flow diagram of the method for another joint transmission provided in an embodiment of the present invention；
Fig. 9 is a kind of functional schematic for polymerizeing discharge device provided in an embodiment of the present invention；
Figure 10 is the functional schematic of another polymerization discharge device provided in an embodiment of the present invention；
Figure 11 is the functional schematic of another polymerization discharge device provided in an embodiment of the present invention；
Figure 12 is a kind of functional schematic of network element provided in an embodiment of the present invention；
Figure 13 is a kind of structural schematic diagram of system provided in an embodiment of the present invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other Embodiment shall fall within the protection scope of the present invention.
The embodiment of the invention provides a kind of methods of joint transmission, as shown in Figure 1, comprising:
101, polymerization discharge device receives downlink data packet from core net.
It should be noted that the downlink data packet of the description in all embodiments of the invention is to be sent to one with core net For the data packet of a UE, but all embodiments of the invention be suitable for any one at the same be connected to the first communication system with The UE (User Equipment, user equipment) of second communication system.
Specifically, polymerization discharge device receives at least two TCP/IP for needing to be sent to a certain UE that core net issues (Transmission Control Protocol/Internet Protocol, transmission control protocol/Internet Protocol) Data packet.
102, the first downstream data packet in downlink data packet is sent to the first network element by polymerization discharge device, and will be described Second downstream data packet in downlink data packet is sent to the second network element.
Wherein, the first network element is located in the first communication system, for according to the PDCP (Packet in the first communication system Data Convergence Protocol, Packet Data Convergence Protocol) layer protocol handles first downstream data packet, and Two network elements are located in the second communication system, for according to the PDCP layer protocol in the second communication system to second downstream data packet into Row processing；Second downstream data packet is the data packet in downlink data packet in addition to first downstream data packet.
By taking downlink data as an example, core of the invention thought is can be connected to the communication of two different systems simultaneously in UE Under the precondition of system (the first communication system and the second communication system), by by the data packet of core network to the UE from PDCP layers start just to be respectively allocated to the first communication system and the second communication system, distribute the data packet into the first communication system According to the first communication system PDCP layer protocol, RLC (Radio Link Control, wireless spread-spectrum technology) layer protocol, MAC (Medium Access Control, medium access control) layer protocol and PHY (physical layer, physical layer) agreement It is handled, and UE is sent to by the base station in the first communication system；Meanwhile distributing the data packet into the second communication system It is handled according to the second communication system PDCP layer protocol, rlc layer agreement, mac-layer protocol and PHY layer agreement, and passes through the Base station in two communication systems is sent to UE, final to realize the data progress combined using the communication system of different systems to the UE Transmission.
For all embodiments in the present invention, about the first communication system, the first network element, the second communication system and Two network elements are specifically arranged, and may include following two situation:
The first situation, the first communication system are LTE (Long Term Evolution, long term evolution) system or LTE-A (the subsequent evolution of LTE-Advanced, LTE) system, the first network element are the eNodeB (Evolved in LTE system or lte-a system The title of base station in Node B, evolved Node B, LTE)；Second communication system is WCDMA (Wideband Code Division Multiple Access, wideband code division multiple access) system or HSPA (High Speed Downlink Packet Access, high speed downlink packet access technology) system or HSPA evolution system；Second network element is WCDMA system or HSPA RNC (Radio Network Controller, radio network controller) in system or HSPA evolution system.
Second situation, the first communication system are WCDMA system or HSPA system or HSPA evolution system；First network element is RNC in WCDMA system or HSPA or HSPA evolution system system；Second communication system is LTE system or lte-a system；The Two network elements are the eNodeB in LTE system or lte-a system.
In the prior art, network element in WCDMA (or HSPA or HSPA evolution system) system and LTE (or LTE-A) system Framework is as shown in Figure 2.Wherein, the user data of WCDMA (or HSPA or HSPA evolution system) system passes through NodeB (i.e. base Stand), RNC, SGSN (Serving GPRS Support Node, GPRS serving GPRS support node) be connected to core net, LTE (or LTE-A) system user data are through eNodeB, P-GW (Packet Data Network Gateway, Packet Data Network's network diagram Close), S-GW (Serving Gateway, gateway), (Mobility Management Entity, mobile management are real by MME Body) it is connected to core net.
It should be noted that if by the first net is regarded to the part that downlink data packet is handled according to PDCP layer protocol The PDCP module of member and the PDCP module of the second network element.In addition to PDCP module in so the first communication system and the second communication system Except, it further include RLC (Radio Link Control, wireless spread-spectrum technology) module, MAC (Medium Access Control, medium access control) module, PHY (physical layer, physical layer) module, for according to respective communication system In rlc layer agreement, mac-layer protocol and PHY layer agreement data packet is handled.
It should be noted that different communication system carry out PDCP layers, rlc layer, MAC layer and PHY layer treatment process, Identical as the treatment process in the prior art to PDCP layers of TCP/IP data progress, rlc layer, MAC layer and PHY layer, the present invention exists This is repeated no more.
Whether RLC module, MAC module, the PHY module of the first communication system regard the first communication system in the first network element Depending on concrete condition, similarly, whether the RLC module of the second communication system, MAC module, PHY module in the second network element regard second Depending on the concrete condition of communication system.
Specifically, if when communication system (the first communication system or the second communication system) is LTE system or lte-a system, Network element (the first network element or the second network element) is eNodeB, at this point, the RLC module of the communication system, MAC module, PHY module all exist In eNodeB.If communication system (the first communication system or the second communication system) is that WCDMA system or HSPA system or HSPA are drilled When into system, network element (the first network element or the second network element) is RNC, at this point, the RLC module of the communication system, MAC module, PHY mould Block is in NodeB (base station).
No matter the actual setting for the first communication system, the first network element, the second communication system and the second network element is A kind of situation or second situation, the framework in the embodiment of the present invention are all as shown in Figure 3.
It should be noted that polymerization discharge device is set independently of the first network element and the second network element, i.e. polymerization distribution in Fig. 3 It is standby independently of RNC and eNodeB, at this point, before step 102, it is also necessary to establish polymerization discharge device and establish respectively and described first Connection between PDCP layers of network element and the connection between the PDCP layer of second network element are used for transmission polymerization discharge device distribution To the TCP/IP data packet of the first network element and the second network element.But it polymerize discharge device in entity apparatus and also can integrate in the One network element or the second network element, i.e. polymerization discharge device are integrated in RNC or eNodeB.When polymerization discharge device is integrated in RNC, it is Framework of uniting is as shown in Figure 4；When polymerization discharge device is integrated in eNodeB, system architecture is as shown in figure 5, at this point, in step 102 Before, it is also necessary to the connection between RNC and eNodeB is established, polymerization discharge device is used for transmission and is distributed to the first network element or the second net The TCP/IP data packet of member.
Specifically, downlink data packet is divided into two groups, i.e. first downstream data packet and the second lower line number by polymerization discharge device According to packet, first downstream data packet is sent to the first network element of the first communication system, the first network element to first downstream data packet into PDCP layers of row processing, then by first downstream data packet in the first communication system according to rlc layer, MAC in the first communication system The processing mode of layer and PHY layer is successively handled, and is sent to UE finally by the base station in the first communication system；Meanwhile by second Downlink data packet is sent to the second network element of the second communication system, and the second network element carries out at PDCP layers second downstream data packet Reason, then by second downstream data packet in the second communication system according to rlc layer, MAC layer and PHY layer in the second communication system Processing mode successively handle, be sent to UE finally by the base station in the second communication system.
The embodiment of the invention provides a kind of methods of joint transmission, polymerize discharge device from core net and receive downlink data Packet；First downstream data packet in downlink data packet is sent to the first network element, so that passing through the first communication system for first Downlink data packet is sent to UE, and the second downstream data packet in downlink data packet is sent to the second network element, so that passing through Second downstream data packet is sent to the UE by the second communication system.The number that just can thus issue core net from PDCP layers According to packet by being respectively processed in two different communication systems.Due to respectively rlc layer, MAC layer, MAC layer processing, with And be sent to UE process it is identical as process in the prior art, so the present embodiment is not needed to PDCP layers in the prior art Framework below is changed, simultaneously because PDCP layers or more most processing is handled by way of software, So the present invention mainly the processing of software protocol function in the prior art is changed, with respect to the background art in side Method greatly reduces the change of hardware.
The embodiment of the invention provides a kind of methods of joint transmission, as shown in Figure 6, comprising:
601, network element receives the downlink data packet that polymerization discharge device issues.
It should be noted that the network element in the present embodiment can be the first network element in above-described embodiment, it is also possible to State the second network element in embodiment.It herein, is described from any one network element angle.
Specifically, network element receives the TCP/IP data packet that polymerization discharge device is issued from core net.
602, network element is handled downlink data packet according to the PDCP layer protocol in affiliated communication system, and logical by this Letter system is by downstream packet transmission to UE.
It should be noted that specifically, after network element receives TCP/IP data packet, according to PDCP layers of association in this communication system View handles downlink data packet, then by treated pass to RLC module in this communication system, MAC module and PHY module is successively handled according to the processing mode of rlc layer, MAC layer and PHY layer in this communication system respectively, finally by base Station is sent to UE.
It should be noted that network element according to the PDCP layer protocol in affiliated communication system to the treatment process of downlink data with The communication system is identical according to treatment process of the PDCP layer protocol to TCP/IP data packet in the prior art, and details are not described herein.
The embodiment of the invention provides a kind of methods of joint transmission, comprising: network element receives what polymerization discharge device issued Downlink data packet；Network element is handled downlink data packet according to the PDCP layer protocol in affiliated communication system, and passes through communication By downstream packet transmission to UE, the data packet that such network element issues core net passes through in two different communication systems system Be respectively processed, and in the processing of rlc layer, MAC layer, MAC layer respectively, and be sent to the process of UE in the prior art Process it is identical, so the present embodiment does not need to be changed PDCP layers of framework below in the prior art, simultaneously because PDCP layers or more most processing is handled by way of software, so the present invention is mainly in the prior art The processing of software protocol function be changed, with respect to the background art in method, the change of hardware is greatly reduced.
The embodiment of the invention provides a kind of methods of joint transmission, as shown in fig. 7, comprises:
701, polymerization discharge device receives downlink data packet from core net.
Specifically, can refer to step 101, details are not described herein.
702, data packet each in downlink data packet is numbered polymerization discharge device.
Specifically, sequencing of the polymerization discharge device according to content between downlink data packet, by received downlink data Packet is successively numbered.
It should be noted that distributing since the first communication system is different from the transmission rate of the second communication system to two The speed of data packet transmission in communication system is different, thus the sequence for the data packet that UE is received be not original data packet it Between sequence, if UE still carries out resolve packet according to the sequence of received data packet at this time, it would be possible that the obtained number of parsing According to mistake.
Illustratively, if the data that core net needs to be transmitted to UE are surrounded by 6, data packet a, data packet b, data are followed successively by Wrap c, data packet d, data packet e, data packet f.At this point, data packet a, data packet b, data packet c are passed by the first communication system Defeated, data packet d, data packet e, data packet f are by the second communications system transmission, if the first communication system downlink transmission rate is the Two times of two communication system descending transmission rates, then the sequence that all data packets reach UE is data packet a, data packet b, data D, data packet c, data packet e, data packet f are wrapped, at this point, if UE is parsed according to the sequence of received data packet, then obtain The sequence of the alphabetic data script of data is not inconsistent, and causes the error in data parsed.
To sum up, so needing that data packet is numbered according to the sequence of the data packet received from core net, so that UE parses data packet according to number after receiving data packet.
703, polymerization discharge device obtains the downlink transmission rate of the first communication system and the downlink of the second communication system passes Defeated rate.
It should be noted that each layer of transmission rate is different in communication system, the downlink transmission rate in the present embodiment The downlink transmission rate and the second communication system for the first communication system that can be the downlink transmission rate of random layer, but obtain Downlink transmission rate must be corresponding layer transmission rate.For example, the downlink transmission rate of the first communication system is first The downlink transmission rate that PDCP layers of communication system, then the downlink transmission rate of corresponding second communication system is exactly second The downlink transmission rate that PDCP layers of communication system.
It should be noted that obtaining the downlink transmission rate of the first communication system and the downlink transfer speed of the second communication system Rate is can to pass through each communication system according to the downlink transmission rate distribution of two communication systems to guarantee when transmitting data packet The data packet of system transmission, to guarantee that all data packets are transmitted to UE in the shortest time.
It should be noted that polymerization discharge device can periodically acquire the downlink transmission rate and the of the first communication system The downlink transmission rate of two communication systems can also be obtained the downlink transmission rate of the first communication system and second with aperiodicity and be led to The downlink transmission rate of letter system.The present invention is without limitation.
Further, polymerization discharge device can lead to the downlink transmission rate of the first communication system received with second The downlink transmission rate of letter system is stored, and every reacquisition is once just updated the receipts being saved, such In the case of, the sequencing that do not fix between step 701-702 and step 703 can first carry out step 701-702, then hold Row step 703；Step 703 can also be first carried out, then executes step 701-702；It can be same with step 701-702 and step 703 Shi Zhihang, the present embodiment are to first carry out step 701-702, then for executing step 703.Alternatively, polymerization discharge device can also Led to when receiving the downlink data packet of core network every time, obtaining the downlink transmission rate and second of the first communication system The downlink transmission rate of letter system does not need logical to the downlink transmission rate of the first communication system and second in such cases The downlink transmission rate of letter system is stored, in such cases, it is necessary to first carry out step 701, then execute step 702 and 703, but the sequence between step 702 and step 703 is with no restrictions, can first carry out step 702, then execute step 703；? Step 703 can be first carried out, then executes step 702；It can be performed simultaneously with step 702 and step 703, the present embodiment is with elder generation Step 702 is executed, then for executing step 703.
704, polymerization discharge device is passed according to the downlink transmission rate of the first communication system and the downlink of the second communication system Defeated rate determines first downstream data packet and second downstream data packet from downlink data packet.
Wherein, second downstream data packet is the data packet in downlink data packet in addition to first downstream data packet.
Step 704 can have following two specific implementation, the first implementation, according to formulaMeter Point counting is assigned to the number of data packet in the number and the second communication system of the data packet of the first communication system.Wherein, N is the first net The received data packet total number from core network of member, v1It is the downlink transmission rate of the first communication system, v2It is the second communication The downlink transmission rate of system, n1It is to need to distribute to the data packet number of the first communication system, n2It is to need to distribute to second to lead to The data packet number of letter system.
Second of implementation, according to the size and the first communication system of all data packets of distribution to the first communication system The ratio of downlink transmission rate and the downlink distributed to the size of all data packets of the second communication system and the second communication system The ratio of transmission rate principle as equal as possible distributes data packet.
It should be noted that due to being only divided into first downstream data packet and second downstream data packet, institute in downlink data packet To have determined that out second downstream data packet while determining first downstream data packet in step 704.
705, the first downstream data packet in downlink data packet is sent to the first network element, the first network element by polymerization discharge device Receive first downstream data packet；It polymerize discharge device and the second downstream data packet in downlink data packet is sent to the second network element, Second network element receives second downstream data packet.
Wherein, the first network element is located in the first communication system, for being assisted according to the PDCP layer in first communication system View handles the first downstream data packet, and the second network element is located in the second communication system, for according to the second communication system PDCP layer protocol in system handles second downstream data packet.
Specifically, can refer to step 102, details are not described herein.
706, the first network element is handled first downstream data packet according to the PDCP layer protocol in the first communication system, and First downstream data packet is transmitted to UE by the first communication system.
Specifically, can refer to step 602, details are not described herein.
707, the second network element is handled second downstream data packet according to the PDCP layer protocol in the second communication system, and Second downstream data packet is transmitted to UE by the second communication system.
Specifically, can refer to step 602, details are not described herein.
It should be noted that the execution sequence of step 706 and step 707 be it is unfixed, step 706 can be first carried out, Step 707 is executed again；Step 707 can also be first carried out, then executes step 706, can be held simultaneously with step 706 and step 707 Row, the present invention are without limitation.The present embodiment is to first carry out step 706, then for executing step 707.
708, UE is according to from the received data packet of the first communication system and from the received data packet of the second communication system, according to Number is to data packet sequential processes.
Specifically, the data packet that UE is sent in the data packet and the second communication system for receiving the transmission of the first communication system, All packet sequences are parsed according to the number of data packet and obtain the data carried in data packet.
It should be noted that UE does not need etc. just to start to be handled after all data packets all reach, as long as received The number of data packet can continuously can be carried out handling.Illustratively, the data that core net needs to be transmitted to UE are surrounded by six It is a, it is respectively data packet 1 after number to data packet 6, data packet that UE is received is data packet 1, data packet 3 along sequence, this When, as long as receiving data packet 2, UE can start to start successively to parse to data packet 1, data packet 2 and data packet 3, without It needs just to be parsed until six data packets receive.
The embodiment of the invention provides a kind of methods of joint transmission, polymerize discharge device from core net and receive downlink data Packet, by downlink data packet number, and according to the downlink transfer of the downlink transmission rate of the first communication system and the second communication system Rate will be respectively allocated to the first communication system in downlink data packet and the second communication system is handled, logical eventually by first Letter system and the second communication system are transmitted separately to UE, and UE is handled all packet sequences according to number, in this way, can Passed through in two different communication systems with the data packet for just issuing core net from PDCP layers and be respectively processed, and divided The processing of other rlc layer, MAC layer, MAC layer, and be sent to UE process it is identical as process in the prior art, so this implementation Example does not need to be changed PDCP layers of framework below in the prior art, simultaneously because PDCP layers or more most place Reason be handled by way of software, so the present invention be mainly to the processing of software protocol function in the prior art into Row change, with respect to the background art in method, the change of hardware is greatly reduced.Further, by according to the first communication The downlink transmission rate of system and the distribution of the downlink transmission rate of the second communication system pass through the first communication system and the second communication The data packet of system transmission, can make full use of two communication systems to transmit downlink data packet, so that all downlink data packets The time for being transmitted to UE shortens as far as possible.
The embodiment of the invention provides a kind of method of joint transmission, the present embodiment is by taking upstream data packet as an example, such as Fig. 8 It is shown, this method comprises:
801, the first network element receives the first upstream data packet that the RLC module of the first communication system is sent.
Specifically, UE will need by the partial data of core network by the PHY layer of the first communication system, MAC layer, After rlc layer is handled, it is transmitted to the first network element.
Further, if UE by it is in need be numbered by the data packet of core network, then the first network element connects The the first upstream data packet received carries number.
802, the second network element receives the second upstream data packet that the RLC module of the second communication system is sent.
It should be noted that the first upstream data packet and the second upstream data packet in the present embodiment are needed from the same UE It is transmitted to the data packet of core net.
Specifically, UE will need by the partial data of core network by the PHY layer of the second communication system, MAC layer, After rlc layer is handled, it is transmitted to the second network element.
Further, if UE by it is in need be numbered by the data packet of core network, then the second network element connects The the second upstream data packet received carries number.
803, the first network element is handled the first upstream data packet according to the PDCP layer protocol in the first communication system, and By treated, the first upstream data packet is sent to polymerization discharge device, and polymerization discharge device receives the first upstream data packet.
It should be noted that the first network element according to the PDCP layer protocol in the first communication system to the first upstream data packet into The process of row processing, it is identical as the processing mode of data packet that PDCP layers of the first communication system of the prior art reports rlc layer, This is repeated no more.
804, the second network element is handled the second upstream data packet according to the PDCP layer protocol in the second communication system, and By treated, the second upstream data packet is sent to polymerization discharge device, and polymerization discharge device receives the second upstream data packet.
It should be noted that the second network element according to the PDCP layer protocol in the second communication system to the second upstream data packet into The process of row processing, it is identical as the processing mode of data packet that PDCP layers of the second communication system of the prior art reports rlc layer, This is repeated no more.
It should be noted that the sequence between step 801,802,803,804 only needs to guarantee step 801 in step 803 Before, and step 802 is before step 804.For the sequencing between step 801,803 and step 802,804, The present invention is with no restrictions.
805, the first upstream data packet is combined to obtain uplink in sequence by polymerization discharge device with the second upstream data packet Data packet, and upstream data packet is transmitted to core net.
It should be noted that due to the data packet after the first communication system and the second communications system transmission sequence with The sequence that data packet is sent at UE may not be identical, so needing according to the sequence of the transmission data packet of UE script to all data Packet is successively handled, i.e., combines to obtain upstream data packet in sequence with the second upstream data packet by the first upstream data packet.
Further, each data packet is taken in each data packet and the second upstream data packet in the first upstream data packet In the case where number, polymerization discharge device will according to the number of the first upstream data packet and the number of the second upstream data packet First upstream data packet and the second upstream data packet combine to obtain upstream data packet according to number order.
It should be noted that since the first upstream data packet and the second upstream data packet being combined according to number Afterwards, package number and data packet in the core network be transmitted without relationship, the number that upstream data packet carries can be removed.
The embodiment of the invention provides a kind of method of joint transmission, the first network element receives the RLC mould of the first communication system The first upstream data packet that block is sent, the second network element receive the second upstream data packet that the RLC module of the second communication system is sent； First network element is handled the first upstream data packet according to the PDCP layer protocol in the first communication system, and will treated the One upstream data packet is sent to polymerization discharge device, and polymerization discharge device receives the first upstream data packet, and the second network element is according to the PDCP layer protocol in two communication systems handles the second upstream data packet, and the second upstream data packet is sent out by treated It send to polymerization discharge device, polymerization discharge device receives the second upstream data packet；It polymerize discharge device for the first upstream data packet It combines to obtain upstream data packet in sequence with the second upstream data packet, and upstream data packet is transmitted to core net.In this way, UE The data for needing to be sent to core net are passed through into the first communication system PHY layer, MAC layer, rlc layer, PDCP layers of processing and the respectively Two communication system PHY layers, MAC layer, rlc layer, PDCP layers of processing are set then in polymerization discharge device convergence by polymerizeing distribution Standby to be sent to core net, the present embodiment does not need to be changed PDCP layers of framework below in the prior art, simultaneously because PDCP layers or more most processing is handled by way of software, so the present invention is mainly in the prior art The protocol functions of software aspects be changed, with respect to the background art in the communication system joint transmission using different systems Method, the change of hardware is greatly reduced.
As shown in figure 9, it is a kind of functional schematic for polymerizeing discharge device provided in an embodiment of the present invention.With reference to Fig. 9 Shown, which includes: receiving unit 901 and transmission unit 902.
Receiving unit 901, for receiving downlink data packet from core net；
Transmission unit 902, for the first downstream data packet in the downlink data packet to be sent to the first network element, so that The first downstream data packet is sent to by UE by the first communication system, and by the second downlink in the downlink data packet Data packet is sent to the second network element, so that the second downstream data packet is sent to the UE by the second communication system； Wherein, first network element is located in first communication system, for being assisted according to the PDCP layer in first communication system View handles the first downstream data packet；Second network element is located in second communication system, for according to institute The PDCP layer protocol stated in the second communication system handles the second downstream data packet；The second downstream data packet is Data packet in the downlink data packet in addition to the first downstream data packet.
Further, as shown in Figure 10, the polymerization discharge device further includes；Processing unit 903；
The polymerization discharge device is independently of first network element, and independently of second network element；Alternatively, the polymerization Discharge device is integrated in first network element；Alternatively, the polymerization discharge device is integrated in second network element；
The processing unit 903 is used in the polymerization discharge device independently of first network element, and independently of described In the case where second network element, the PDCP layer of the connection and second network element between PDCP layers of first network element is established respectively Between connection；Alternatively, being established and second net in the case where the polymerization discharge device is integrated in first network element Connection between the PDCP layer of member；Alternatively, in the case where the polymerization discharge device is integrated in second network element, establish with Connection between the PDCP layer of first network element.
Further, as shown in figure 11, polymerization discharge device further include: acquiring unit 904 and determination unit 905；
The acquiring unit 904, downlink transmission rate and described second for obtaining first communication system communicate The downlink transmission rate of system；
The determination unit 905, for being communicated according to the downlink transmission rate of first communication system and described second The downlink transmission rate of system determines the first downstream data packet and the second lower line number from the downlink data packet According to packet.
Further, the processing unit 903 is also used to for data packet each in the downlink data packet being numbered, So that the UE is according to the number to the first downstream data packet and the second downstream data package-restructuring.
Further, the receiving unit 901, be also used to receive first reported by network elements the first upstream data packet and Second upstream data packet of second reported by network elements；The first upstream data packet and the second upstream data packet are described UE is transmitted to the data packet of the core net；
The processing unit 903 is also used to the first upstream data packet with the second upstream data packet according to suitable Sequence combines to obtain upstream data packet；
The transmission unit 902 is also used to the upstream data packet being transmitted to the core net.
Specifically, each data packet in each data packet and the second upstream data packet in the first upstream data packet Carry number；
Correspondingly, the processing unit 903, specifically for the number and described second according to the first upstream data packet The first upstream data packet and the second upstream data packet are combined to obtain by the number of upstream data packet according to number order The upstream data packet.
Further, first communication system includes: long term evolution LTE system or LTE subsequent evolution LTE-A system System；First network element includes: the eNodeB in base station eNodeB or the lte-a system in the LTE system；Institute Stating the second communication system includes；Wideband code division multiple access WCDMA system or high speed downlink packet access technology HSPA system System or HSPA evolution system；Second network element includes: the radio network controller (RNC) in the WCDMA system.Or The RNC in RNC or the HSPA evolution system in the HSPA system；
Alternatively, first communication system includes: the WCDMA system perhaps the HSPA system or the HSPA Evolution system；RNC in WCDMA system described in first network element.Perhaps the RNC or described in the HSPA system RNC in HSPA evolution system；Second communication system includes: the LTE system or the lte-a system；Described Two network elements include: the eNodeB in the LTE system or eNodeB in the lte-a system.
The embodiment of the invention provides a kind of polymerization discharge devices, polymerize discharge device from core net and receive downlink data Packet；First downstream data packet in downlink data packet is sent to the first network element, so that passing through the first communication system for first Downlink data packet is sent to UE, and the second downstream data packet in downlink data packet is sent to the second network element, so that passing through Second downstream data packet is sent to the UE by the second communication system.The number that just can thus issue core net from PDCP layers According to packet by being respectively processed in two different communication systems.Due to respectively rlc layer, MAC layer, MAC layer processing, with And be sent to UE process it is identical as process in the prior art, so the present embodiment is not needed to PDCP layers in the prior art Framework below is changed, simultaneously because PDCP layers or more most processing is handled by way of software, So the present invention mainly the processing of software protocol function in the prior art is changed, with respect to the background art in side Method greatly reduces the change of hardware.
It as shown in figure 12, is a kind of functional schematic of network element provided in an embodiment of the present invention.It, should with reference to shown in Figure 12 Network element includes: receiving unit 1201, processing unit 1202 and transmission unit 1203.
Receiving unit 1201, the downlink data packet issued for receiving polymerization discharge device；
Processing unit 1202, for according to the PDCP layer protocol in affiliated communication system to the downlink data packet at Reason；
Transmission unit 1203, for by the communication system by the downstream packet transmission to UE.
Further, the receiving unit 1201 is also used to receive the upper line number that the RLC module of affiliated communication system is sent According to packet；
The processing unit 1202 is also used to according to the PDCP layer protocol in affiliated communication system to the upstream data packet It is handled；
The transmission unit 1203, is also used to that the upstream data packet is sent to that the polymerization distribution is set by treated It is standby.
The embodiment of the invention provides a kind of network element, network element receives the downlink data packet that polymerization discharge device issues；Network element Downlink data packet is handled according to the PDCP layer protocol in affiliated communication system, and passes through communication system for downlink data packet It is transmitted to UE, such network element, which passes through the data packet that core net issues in two different communication systems, to be respectively processed, and And respectively rlc layer, MAC layer, MAC layer processing, and be sent to UE process it is identical as process in the prior art, so The present embodiment does not need to be changed PDCP layers of framework below in the prior art, simultaneously because PDCP layers or more big portion The processing divided is handled by way of software, so the present invention is mainly to software protocol function in the prior art Processing is changed, with respect to the background art in method, the change of hardware is greatly reduced.
It as shown in figure 13, is a kind of structural schematic diagram of system provided in an embodiment of the present invention.It, should with reference to shown in Figure 13 System includes: polymerization discharge device 1301, the first network element 1302 and the second network element 1303；
The polymerization discharge device 1301 is polymerization discharge device described in above-described embodiment；
First network element 1302 is network element described in above-described embodiment；
Second network element 1303 is network element described in above-described embodiment.
The embodiment of the invention provides a kind of communication system, the RLC module that the first network element receives the first communication system is sent The first upstream data packet, the second network element receive the second communication system RLC module send the second upstream data packet；First net Member is handled the first upstream data packet according to the PDCP layer protocol in the first communication system, and will treated the first uplink Data packet is sent to polymerization discharge device, and polymerization discharge device receives the first upstream data packet, and the second network element is according to the second communication PDCP layer protocol in system handles the second upstream data packet, and will treated that the second upstream data packet is sent to is poly- Discharge device is closed, polymerization discharge device receives the second upstream data packet；It polymerize discharge device for the first upstream data packet and second Upstream data packet combines in sequence obtains upstream data packet, and upstream data packet is transmitted to core net.In this way, UE will need The data for being sent to core net pass through the first communication system PHY layer, MAC layer, rlc layer, PDCP layers of processing and the second communication respectively System PHY layer, MAC layer, rlc layer, PDCP layers of processing are sent then in polymerization discharge device convergence by polymerization discharge device To core net, the present embodiment does not need to be changed PDCP layers of framework below in the prior art, simultaneously because PDCP layers Or more it is most processing be handled by way of software, so the present invention mainly to software in the prior art The protocol function of aspect is changed, with respect to the background art in the communication system joint transmission using different systems side Method greatly reduces the change of hardware.
In several embodiments provided herein, it should be understood that disclosed system, device and method can be with It realizes by another way.For example, the apparatus embodiments described above are merely exemplary, for example, the unit It divides, only a kind of logical function partition, there may be another division manner in actual implementation, such as multiple units or components It can be combined or can be integrated into another system, or some features can be ignored or not executed.Another point, it is shown or The mutual coupling, direct-coupling or communication connection discussed can be through some interfaces, the indirect coupling of device or unit It closes or communicates to connect, can be electrical property, mechanical or other forms.
The unit as illustrated by the separation member may or may not be physically separated, aobvious as unit The component shown may or may not be physical unit, it can and it is in one place, or may be distributed over multiple In network unit.It can select some or all of unit therein according to the actual needs to realize the mesh of this embodiment scheme 's.
It, can also be in addition, the functional units in various embodiments of the present invention may be integrated into one processing unit It is that the independent physics of each unit includes, can also be integrated in one unit with two or more units.Above-mentioned integrated list Member both can take the form of hardware realization, can also realize in the form of hardware adds SFU software functional unit.
The above-mentioned integrated unit being realized in the form of SFU software functional unit can store and computer-readable deposit at one In storage media.Above-mentioned SFU software functional unit is stored in a storage medium, including some instructions are used so that a computer Equipment (can be personal computer, server or the network equipment etc.) executes the portion of each embodiment the method for the present invention Step by step.And storage medium above-mentioned includes: USB flash disk, mobile hard disk, read-only memory (Read-Only Memory, abbreviation ROM), random access memory (Random Access Memory, abbreviation RAM), magnetic or disk etc. are various can store The medium of program code.
Finally, it should be noted that the above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although Present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that: it still may be used To modify the technical solutions described in the foregoing embodiments or equivalent replacement of some of the technical features； And these are modified or replaceed, technical solution of various embodiments of the present invention that it does not separate the essence of the corresponding technical solution spirit and Range.

Claims (19)

1. a kind of method of joint transmission characterized by comprising
It polymerize discharge device and receives downlink data packet from core net；
First downstream data packet in the downlink data packet is sent to the first network element by the polymerization discharge device, so that logical It crosses the first communication system and the first downstream data packet is sent to user equipment (UE), and by second in the downlink data packet Downlink data packet is sent to the second network element, so that being sent to the second downstream data packet by the second communication system described UE；Wherein, first network element is located in first communication system, for according to the packet count in first communication system The first downstream data packet is handled according to convergence protocol PDCP layer protocol；Second network element is located at second communication In system, for being handled according to the PDCP layer protocol in second communication system the second downstream data packet；Institute Stating second downstream data packet is the data packet in the downlink data packet in addition to the first downstream data packet；
Wherein, first communication system and second communication system are the communication systems of two different systems.
2. the method according to claim 1, wherein
The polymerization discharge device is independently of first network element, and independently of second network element；Alternatively, the polymerization distribution Integration of equipments is in first network element；Alternatively, the polymerization discharge device is integrated in second network element；
The first downstream data packet in the downlink data packet is sent to the first network element in the polymerization discharge device, and by institute The second downstream data packet stated in downlink data packet is sent to before the second network element, further includes:
It is described poly- in the case where the polymerization discharge device is independently of first network element and independently of second network element Discharge device is closed to establish respectively between the connection between PDCP layers of first network element and the PDCP layer of second network element Connection；
Alternatively, in the case where the polymerization discharge device is integrated in first network element, the polymerization discharge device establish with Connection between the PDCP layer of second network element；
Alternatively, in the case where the polymerization discharge device is integrated in second network element, the polymerization discharge device establish with Connection between the PDCP layer of first network element.
3. method according to claim 1 or 2, which is characterized in that in the polymerization discharge device by the downlink data First downstream data packet in packet is sent to the first network element, and the second downstream data packet in the downlink data packet is sent to Before second network element, further includes:
The polymerization discharge device obtains under the downlink transmission rate and second communication system of first communication system Row transmission rate；
The polymerization discharge device is according under the downlink transmission rate and second communication system of first communication system Row transmission rate determines the first downstream data packet and the second downstream data packet from the downlink data packet.
4. according to the method described in claim 3, it is characterized in that, the polymerization discharge device from core net reception under line number After packet, the first downstream data packet in the downlink data packet is sent to the first network element by the polymerization discharge device, and Second downstream data packet in the downlink data packet is sent to before the second network element, further includes:
Data packet each in the downlink data packet is numbered the polymerization discharge device, so that the UE is according to Number is to the first downstream data packet and the second downstream data package-restructuring.
5. the method according to claim 1, wherein further include:
The polymerization discharge device receives the first upstream data packet and second reported by network elements of first reported by network elements Second upstream data packet；The first upstream data packet and the second upstream data packet are that the UE is transmitted to the core net Data packet；
The first upstream data packet is combined to obtain in sequence by the polymerization discharge device with the second upstream data packet Upstream data packet, and the upstream data packet is transmitted to the core net.
6. according to the method described in claim 5, it is characterized in that, each data packet and described in the first upstream data packet Each data packet carries number in second upstream data packet；
The first upstream data packet is combined to obtain in sequence by the polymerization discharge device with the second upstream data packet Upstream data packet includes:
The polymerization discharge device will according to the number of the first upstream data packet and the number of the second upstream data packet The first upstream data packet and the second upstream data packet combine to obtain the upstream data packet according to number order.
7. the method according to claim 1, wherein
First communication system includes: long term evolution LTE system or the subsequent evolution lte-a system of LTE；
First network element includes: the eNodeB in base station eNodeB or the lte-a system in the LTE system；
Second communication system includes: wideband code division multiple access WCDMA system or high speed downlink packet access technology HSPA system or HSPA evolution system；
Second network element includes: the radio network controller (RNC) in the WCDMA system；Or in the HSPA system RNC in RNC or the HSPA evolution system；
Alternatively,
First communication system includes: the WCDMA system perhaps the HSPA system or the HSPA evolution system；
RNC in WCDMA system described in first network element；Perhaps the RNC in the HSPA system or the HSPA evolution RNC in system；
Second communication system includes: the LTE system or the lte-a system；
Second network element includes: the eNodeB in the LTE system or eNodeB in the lte-a system.
8. a kind of method of joint transmission characterized by comprising
Network element receives the downlink data packet that polymerization discharge device issues；
The network element according to the Packet Data Convergence Protocol PDCP layer protocol in affiliated communication system to the downlink data packet into Row processing, and by the communication system by the downstream packet transmission to user equipment (UE)；
Wherein, the polymerization discharge device receives downlink data packet from core net；
The network element is the first network element or the second network element；
First downstream data packet in the downlink data packet is sent to the first network element by the polymerization discharge device, so that logical It crosses the first communication system and the first downstream data packet is sent to user equipment (UE), and by second in the downlink data packet Downlink data packet is sent to the second network element, so that being sent to the second downstream data packet by the second communication system described UE；Wherein, first network element is located in first communication system, for according to the packet count in first communication system The first downstream data packet is handled according to convergence protocol PDCP layer protocol；Second network element is located at second communication In system, for being handled according to the PDCP layer protocol in second communication system the second downstream data packet；Institute Stating second downstream data packet is the data packet in the downlink data packet in addition to the first downstream data packet；
Wherein, first communication system and second communication system are the communication systems of two different systems；
The method that the downlink data packet is handled are as follows:
It polymerize discharge device according to the sequencing of content between downlink data packet, received downlink data packet is successively compiled Number.
9. according to the method described in claim 8, it is characterized by further comprising:
The network element receives the upstream data packet that the wireless spread-spectrum technology RLC module of affiliated communication system is sent；
The network element is handled the upstream data packet according to the PDCP layer protocol in affiliated communication system, and will be after processing The upstream data packet be sent to the polymerization discharge device.
10. a kind of polymerization discharge device characterized by comprising
Receiving unit, for receiving downlink data packet from core net；
Transmission unit, for the first downstream data packet in the downlink data packet to be sent to the first network element, so that passing through The first downstream data packet is sent to UE by the first communication system, and by the second downstream data packet in the downlink data packet It is sent to the second network element, so that the second downstream data packet is sent to the UE by the second communication system；Wherein, institute The first network element is stated to be located in first communication system, for according to the PDCP layer protocol in first communication system to described First downstream data packet is handled；Second network element is located in second communication system, for logical according to described second PDCP layer protocol in letter system handles the second downstream data packet；The second downstream data packet is the downlink Data packet in data packet in addition to the first downstream data packet；
Wherein, first communication system and second communication system are the communication systems of two different systems.
11. equipment according to claim 10, which is characterized in that further include: processing unit；
The polymerization discharge device is independently of first network element, and independently of second network element；Alternatively, the polymerization distribution Integration of equipments is in first network element；Alternatively, the polymerization discharge device is integrated in second network element；
The processing unit is used in the polymerization discharge device independently of first network element, and independently of second net In the case where member, establish between the connection between PDCP layers of first network element and the PDCP layer of second network element respectively Connection；
Alternatively, being established and second network element in the case where the polymerization discharge device is integrated in first network element Connection between PDCP layers；
Alternatively, being established and first network element in the case where the polymerization discharge device is integrated in second network element Connection between PDCP layers.
12. equipment described in 0 or 11 according to claim 1, which is characterized in that further include: acquiring unit and determination unit；
The acquiring unit, under the downlink transmission rate and second communication system for obtaining first communication system Row transmission rate；
The determination unit, under the downlink transmission rate and second communication system according to first communication system Row transmission rate determines the first downstream data packet and the second downstream data packet from the downlink data packet.
13. equipment according to claim 11, which is characterized in that the processing unit is also used to the downlink data packet In each data packet be numbered so that the UE according to it is described number under the first downstream data packet and described second Row data package-restructuring.
14. equipment according to claim 11, which is characterized in that
The receiving unit is also used to receive the first upstream data packet and second reported by network elements of first reported by network elements The second upstream data packet；The first upstream data packet and the second upstream data packet are that the UE is transmitted to the core The data packet of net；
The processing unit is also used to combine the first upstream data packet in sequence with the second upstream data packet To upstream data packet；
The transmission unit is also used to the upstream data packet being transmitted to the core net.
15. equipment according to claim 14, which is characterized in that each data packet and institute in the first upstream data packet It states each data packet in the second upstream data packet and carries number；
The processing unit, specifically for according to the number of the first upstream data packet and the volume of the second upstream data packet It number combines the first upstream data packet and the second upstream data packet to obtain the upstream data packet according to number order.
16. equipment according to claim 10, which is characterized in that
First communication system includes: long term evolution LTE system or the subsequent evolution lte-a system of LTE；
First network element includes: the eNodeB in base station eNodeB or the lte-a system in the LTE system；
Second communication system includes: wideband code division multiple access WCDMA system or high speed downlink packet access technology HSPA system or HSPA evolution system；
Second network element includes: the radio network controller (RNC) in the WCDMA system；Or in the HSPA system RNC in RNC or the HSPA evolution system；
Alternatively,
First communication system includes: the WCDMA system perhaps the HSPA system or the HSPA evolution system；
RNC in WCDMA system described in first network element；Perhaps the RNC in the HSPA system or the HSPA evolution RNC in system；
Second communication system includes: the LTE system or the lte-a system；
Second network element includes: the eNodeB in the LTE system or eNodeB in the lte-a system.
17. a kind of network element applied to joint transmission characterized by comprising
Receiving unit, the downlink data packet issued for receiving polymerization discharge device；
Processing unit, for being handled according to the PDCP layer protocol in affiliated communication system the downlink data packet；
Transmission unit, for by the communication system by the downstream packet transmission to UE；
The network element is the first network element or the second network element；
Wherein, the polymerization discharge device receives downlink data packet from core net；
First downstream data packet in the downlink data packet is sent to the first network element by the polymerization discharge device, so that logical It crosses the first communication system and the first downstream data packet is sent to user equipment (UE), and by second in the downlink data packet Downlink data packet is sent to the second network element, so that being sent to the second downstream data packet by the second communication system described UE；Wherein, first network element is located in first communication system, for according to the packet count in first communication system The first downstream data packet is handled according to convergence protocol PDCP layer protocol；Second network element is located at second communication In system, for being handled according to the PDCP layer protocol in second communication system the second downstream data packet；Institute Stating second downstream data packet is the data packet in the downlink data packet in addition to the first downstream data packet；
Wherein, first communication system and second communication system are the communication systems of two different systems；
The method that the downlink data packet is handled are as follows:
It polymerize discharge device according to the sequencing of content between downlink data packet, received downlink data packet is successively compiled Number.
18. network element according to claim 17, which is characterized in that
The receiving unit is also used to receive the upstream data packet that the wireless spread-spectrum technology RLC module of affiliated communication system is sent；
The processing unit is also used to according to the PDCP layer protocol in affiliated communication system to the upstream data packet Reason；
The transmission unit, is also used to that the upstream data packet is sent to the polymerization discharge device by treated.
19. a kind of joint transmission system characterized by comprising polymerization discharge device, the first network element and the second network element；
The polymerization discharge device is the described in any item polymerization discharge devices of claim 10-16；
First network element is network element described in claim 17 or 18；
Second network element is network element described in claim 17 or 18.
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