CN102369784A - Method, communication system and protocol entity for improving performance of relay network system - Google Patents
Method, communication system and protocol entity for improving performance of relay network system Download PDFInfo
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- 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
A method, communication system and protocol entity for improving the performance of relay network system are disclosed by embodiments of the present invention. The method comprises: relay radio link control (RRLC) layer entity receives the packets transmitted by at least two packet data convergence protocol (PDCP) layer entities; RRLC entity aggregates the packets; and RRLC entity transmits the aggregated packets to the radio link control (RLC) layer entity, thereby enabling the aggregated packets to be transmitted to the receiving device via RLC layer, MAC layer, and L1 layer. Utilizing the solution provided by embodiments of the present invention, the system performance of the relay network system is enhanced by making full use of the transmission resource over the wireless link from relay station to base station.
Description
Improve method, communication system and the protocol entity technical field of relay network system performance
The present invention relates to communication technical field, more particularly to a kind of method, communication system and the protocol entity of raising Zhong Ji Wang Network systematic functions.
Background technology
Due to IMT-Advanced, (ternational Mobile Telecommunications are senior）System needs blunt high power system capacity, higher frequency range provides the big bandwidth spectrum for meeting its capacity for IMT-Advanced systems, and the path loss and penetration loss of so high frequency range are all larger, so that the covering that base station has been difficult to realize in cell edge, therefore it is the capacity requirement for meeting IMT-Advanced, 3GPP (3rd Genera t ion Par tnershi p Project, third generation partner program）The LTE_Advanced technologies that standardization body proposes now just will relaying（Re lay) technology as it is a kind of improve power system capacity and covering candidate technologies studied.
In Chuan Tong Wang Network, the wireless connection between base station and terminal is direct wireless connection, that is, single-hop Wang Network.And relaying technique is to increase one or more relay stations between the base station and the terminal, the wireless signal for being responsible for sending base station by the relay station does one or many signal transactings or directly forwarding, until base station transmission signal is transferred into terminal.By taking better simply double bounce relaying as an example, a base station-terminal Radio Link is exactly divided into base station to relay station and relay station to two Radio Links of terminal, so as to have an opportunity a second-rate link replacing with two preferable links of quality, to obtain higher link capacity and more preferable covering.3GPP requires that LTE-Advanced nets Network has blunt good backwards compatibility for LTE terminal, that is, requires on the premise of any behavioral trait of existing LTE terminal is not changed, it is allowed to which LTE terminal obtains access service from relay station.This just determines that this link of relay station-terminal can support the interface between base station and terminal, i.e. Uu interfaces in former LTE Wang Network.And the interface for being used on relay station to base station this wireless links, at present ununified regulation, it is usually direct use Uu interfaces in the prior art.
According to the relevant criterion of 3GPP agreements, the protocol stack of Uu interface user planes is divided into four protocol sublayers, is respectively：PDCP (Packet Da ta Convergence Protocol, packet data convergence protocol）
Layer, RLC (Radio L ink Cont ro l, wireless chain control layer）Layer, MAC (Med ium Acces s Cont ro l, media access control layer）Layer and LI (layer 1, i.e. physical layer）Layer.
In the prior art, a PDCP entities in high-rise PDCP layer of radio bearer correspondence, the PDCP entities correspond to a RLC entity in rlc layer, that is to say, that PDCP entities and RLC entities be --- and it is corresponding.By taking the uplink communication process by relay station to base station as an example, when a packet on the radio bearer for receiving high level, some PDCP entity in relay station just exports a PDCP protocol Data Unit, i.e. PDCP PDU.And RLC entities will carry out again splitting and polymerizeing to the PDCP PDU received and export RLC PDU.MAC layer can carry out United Dispatching to the RLC PDU that all RLC entities are produced, but the packet only from same terminal can be just multiplexed on same transmission channel, be then sent to base station by L1 layers.Base station is received after data by L1 layers, successively in MAC layer, the rlc layer and PDCP layers of inverse operations performed to packet relative to relay station, so as to complete the uplink receiving process of data.
During the present invention is realized, inventor has found that at least there are the following problems in the prior art：According to existing data transfer mode, the data that every transmission channel on the Radio Link of relay station to base station is transmitted are only limited to the data of some terminal.And due to the limitation of definite transmission time interval resource, relative to the transmission channel between former terminal to base station, the capacity of relay station to the transmission channel between base station wants greatly many.Therefore, if still according to the data of existing transmission means transmission terminal, it will cause the huge waste of Radio Resource, and then relay station is made to turn into the transmission bottleneck of system to base station link.The content of the invention
The embodiments of the invention provide a kind of method, communication system and the protocol entity of raising Zhong Ji Wang Network systematic functions, to optimize the systematic function of Zhong Ji Wang Network systems.
The embodiment of the present invention is adopted the following technical scheme that：
A kind of method of raising Zhong Ji Wang Network systematic functions, including：
Service convergence layer RRLC entities receive the packet sent by least two packet data convergence protocol PDCP entities；
RRLC entities carry out converge operation to packet；
Packet after converge operation is sent to wireless chain control layer RLC entities, so that the packet after converge operation is transferred to receiving device through wireless chain control layer, media access control layer, L1 layers.
A kind of protocol entity, including：
Receiving unit, for receiving by the packet of at least two packet data convergence protocol PDCP entities transmission of relay station/base station side；
Unit is converged, for carrying out converge operation to the packet received by receiving unit；
Transmitting element, wireless chain control layer RLC entities for the packet after converge operation received by convergence unit to be sent to relay station/base station side, so that the packet after converge operation is transferred to base station/relay station through wireless chain control layer, media access control layer, 1 layer of L.
A kind of communication system, including：At least two packet data convergence protocol PDCP entities, service convergence layer RRLC entities, and wireless chain control layer RLC entities；Wherein PDCP is physically located at packet data convergence protocol, and RRLC is physically located at service convergence layer, and RLC is physically located at wireless chain control layer, and service convergence layer is located between packet data convergence protocol and wireless chain control layer；
PDCP entities, for being sent to RRLC entities from high-rise packet；
RRLC entities, the packet at least two PDCP entities to be sent carries out converge operation, and the packet after converge operation is sent into RLC entities；
RLC entities, for carrying out splitting/converging operation to the packet after converge operation received.The embodiment of the present invention improves method, communication system and the protocol entity of Zhong Ji Wang Network systematic functions, by passing through converge operation by newly-increased RRLC entities, by the packet of the radio bearer of at least two terminals by a transmission channel, the defect of the waste Radio Resource caused in the prior art by the packet of the radio bearer corresponding to one terminal of a transmission channel is overcome.Thus, the embodiment of the present invention takes full advantage of transfer resource of the relay station to this wireless links of base station, so as to optimize the systematic function of Zhong Ji Wang Network systems.
A kind of method of raising Zhong Ji Wang Network systematic functions, including：
Service convergence layer RRLC entities receive the packet sent by transmission equipment, and wherein packet is to be transferred to service convergence layer via L1 layers, media access control layer, wireless chain control layer；
RRLC entities carry out solution converge operation to packet；
Packet through solving converge operation is sent to corresponding packet data convergence protocol PDCP entities.A kind of protocol entity, including：
Receiving unit, for receiving the packet that relay station/base station is sent, wherein packet is transmitted by L1 layers, wireless chain control layer, the media access control layer of base station/relay station side；
Solution convergence unit, for carrying out solution converge operation to the packet received by receiving unit；Transmitting element, for the packet after solving converge operation received by solution convergence unit to be sent into the corresponding packet data convergence protocol PDCP entities in base station/relay station side.
A kind of communication system, including：At least two packet data convergence protocol PDCP entities, service convergence layer RRLC entities, and wireless chain control layer RLC entities；Wherein PDCP is physically located at packet data convergence protocol, and RRLC is physically located at service convergence layer, and RLC is physically located at wireless chain control layer, and service convergence layer is located between packet data convergence protocol and wireless chain control layer；
RLC entities, for carrying out the packet received to split/converging operation, and are sent to RRLC entities by the packet after processing；
RRLC entities, the packet for RLC entities to be sent carries out solution converge operation, and the packet after solving converge operation is sent into corresponding PDCP entities；
PDCP entities, for receiving the packet sent by RRLC entities.
The embodiment of the present invention improves method, communication system and the protocol entity of Zhong Ji Wang Network systematic functions, by the RRLC entities by increasing newly by solving converge operation, packet by the radio bearer of at least two terminals of a transmission channel is sent respectively to corresponding terminal, the defect of the waste Radio Resource caused in the prior art by the packet of the radio bearer corresponding to one terminal of a transmission channel is overcome.Thus, the embodiment of the present invention takes full advantage of transfer resource of the relay station to this wireless links of base station, so as to optimize the systematic function of Zhong Ji Wang Network systems.
Brief description of the drawings
In order to illustrate the technical solution of the embodiments of the present invention more clearly, the accompanying drawing used required in being described below to embodiment is briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, can also obtain other accompanying drawings according to these accompanying drawings.
The schematic diagram for the protocol infrastructure that Fig. 1 is set up for the principle based on the embodiment of the present invention；
Fig. 2 is the schematic diagram of the communication system of the embodiment of the present invention one；
Fig. 3 is the specific schematic diagram of the communication system of the embodiment of the present invention one；
Fig. 4 is the method flow diagram that the embodiment of the present invention three improves Zhong Ji Wang Network systematic functions；
The schematic diagram that Fig. 5 is RRLC PDU in the embodiment of the present invention three；
The another schematic diagram that Fig. 6 is RRLC PDU in the embodiment of the present invention three；
Fig. 7 is the another flow chart of method that the embodiment of the present invention three improves Zhong Ji Wang Network systematic functions；Fig. 8 is the method flow diagram of the raising Zhong Ji Wang Network systematic functions described in the embodiment of the present invention four；Fig. 9 is the schematic diagram of the protocol entity of the embodiment of the present invention seven；
Fig. 10 is the schematic diagram of the protocol entity of the embodiment of the present invention eight.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is only a part of embodiment of the invention, rather than whole embodiments.Based on the embodiment in the present invention, the every other embodiment that those of ordinary skill in the art are obtained under the premise of creative work is not made belongs to the scope of protection of the invention.
In embodiments of the present invention, there is the communication of both direction on relay station to base station this wireless links, we are referred to as up by the communication on relay station to base station direction, and the communication by base station to relay station direction is referred to as descending.Different to the Uu interfaces between base station from relay station of the prior art, the embodiment of the present invention is improved to the Uu interfaces between base station relay station, and the relay station after improvement is referred to as into Uu' interfaces to the interface between base station herein.
The Uu, the protocol stack of interface has five sublayer compositions, is respectively：PDCP layers, RRLC layers（Re l ay RLC, service convergence layer）, rlc layer, MAC layer and L1 layers.Wherein, PDCP layers, rlc layer, MAC layer and L1 layers it is identical with the definition of each protocol sublayers of Uu interfaces in 3GPP standards.Also, include multiple PDCP entities at PDCP layers, multiple RRLC entities are included at RRLC layers, are included in rlc layer
Multiple RLC entities.
In embodiments of the present invention, a high-rise radio bearer still can be associated with PDCP layers of a PDCP physically, but multiple PDCP entities will first be associated with a RRLC physically before RLC is associated with physically, then this RRLC entity is associated with a RLC physically again.In other words, unlike in the prior art, PDCP entities and RRLC entities are many-to-one relations, and RRLC entities and RLC entities are man-to-man relations, therefore PDCP entities and RLC entities realize many-to-one relation.Such a configuration relation is exactly based on, the packet on the radio bearer from different terminals converges to same RRLC PDU (Protoco l Da ta Un i t, protocol Data Unit by RRLC entities）In and send RLC entities to and split and polymerize, and be further multiplexed on same transmission channel by MAC layer entity, so as to reach the purpose of the same transmission channel on the data sharing relay station to base station link of multiple terminals.Fig. 1 show the schematic diagram for the protocol infrastructure that the principle based on the embodiment of the present invention is set up.
Based on above-mentioned design principle, the embodiment of the present invention one provides a kind of communication system, as shown in Fig. 2, including：At least two packet data convergence protocol PDCP entities 11, service convergence layer RRLC entities 12, and wireless chain control layer RLC entities 13;Wherein the PDCP entities 11 are located at packet data convergence protocol, the RRLC entities 12 are located at service convergence layer, the RLC entities 13 are located at wireless chain control layer, and service convergence layer is located between the packet data convergence protocol and the wireless chain control layer.
PDCP entities 11 shown in Fig. 2, for being sent to RRLC entities 12 from high-rise packet；RRLC entities 12, the packet at least two PDCP entities 11 to be sent carries out converge operation, and the packet after converge operation is sent into RLC entities 13;RLC entities 13, for carrying out splitting/converging operation to the packet after converge operation received.
In order to deliver a packet to receiving device, as shown in Fig. 3, the system of the embodiment of the present invention one may also include：Media access control layer MAC entity 14, for by the packet multiplexing after segmented/converging operation to same transmission channel, receiving device to be transferred to through L1 layers.
Above-mentioned receiving device can be base station, or relay station.That is, in relay station side and base station side, may comprise communication system as shown in Figure 2 or Figure 3.
As seen from the above, the communication system of the embodiment of the present invention one, by being led to by newly-increased RRLC entities
Cross converge operation, by the packet of the radio bearer of at least two terminals by a transmission channel, the defect of the waste Radio Resource caused in the prior art by the packet of the radio bearer corresponding to one terminal of a transmission channel is overcome.Thus, the embodiment of the present invention takes full advantage of transfer resource of the relay station to this wireless links of base station, so as to optimize the systematic function of Zhong Ji Wang Network systems.
So, corresponding with the system shown in embodiment one, the embodiment of the present invention two also provides a kind of communication system, and its composition is identical with shown in Fig. 2 or Fig. 3.Unlike, in embodiment two, the packet after processing for carrying out the packet received to split/converging operation, and is sent to RRLC entities by RLC entities 13；RRLC entities 12, the packet for RLC entities 13 to be sent carries out solution converge operation, and the packet after solving converge operation is sent into corresponding PDCP entities 11;PDCP entities 11, for receiving the packet sent by RRLC entities 12.And send the packet that equipment is sent in order that obtaining receiving device and can accurately receive, media access control layer MAC entity 14, for that will be carried out being demultiplexed into logic channel by the L1 layers of packet received, and the packet after processing is sent to RLC entities 13.
Certainly, in a particular application, the system of the embodiment of the present invention one and embodiment two can also synthesize a system, this each entity being accomplished by the system is while have the described corresponding function in embodiment one and embodiment two, simply in different transmission directions, different functions are played.
The communication system of the embodiment of the present invention two, by the RRLC entities by increasing newly by solving converge operation, packet by the radio bearer of at least two terminals of a transmission channel is sent respectively to corresponding terminal, the defect of the waste Radio Resource caused in the prior art by the packet of the radio bearer corresponding to one terminal of a transmission channel is overcome.Thus, the embodiment of the present invention takes full advantage of transfer resource of the relay station to this wireless links of base station, so as to optimize the systematic function of Zhong Ji Wang Network systems.
As seen from the above description, the embodiment of the present invention may include the communication on uplink communication and downlink communication both direction, following embodiment three and example IV will be described by taking the processing mode of relay station and base station on up communication direction as an example respectively, and embodiment five and embodiment six will be described by taking the processing mode of relay station and base station on descending communication direction as an example respectively.
To improve the systematic function of Zhong Ji Wang Network systems, as shown in Fig. 4, the embodiment of the present invention three is provided
A kind of method of raising Zhong Ji Wang Network systematic functions, comprises the following steps：
Step 41, the service convergence layer RRLC entities of relay station side receive the packet sent by least two packet data convergence protocol PDCP entities.The packet that the PDCP entities are sent is the packet of the radio bearer from least two terminals.
Step 42, the RRLC entities of relay station side carry out converge operation to the packet.
During RRLC entities carry out converge operation to the packet, it can be realized by least following two modes：
Mode one：The RRLC entities include inside RLC entities and aggregation entity.First by the inside RLC entities in RRLC entities, internal rlc protocol data cell is generated according to the PDCP protocol Data Units of the packet sent by the PDCP entities, RRLC protocol Data Units are then generated according to the inside RLC protocol Data Units of generation by the aggregation entity in the RRLC entities.
Wherein the form of the inside rlc protocol data cell is identical with RLC PDU form, is herein the technical scheme of the accurately description embodiment of the present invention, is nominally being distinguish between the two.
And the structure and content of the RRLC PDU may include as shown in Figure 5：RRLC packet header and RRLC loads.Wherein, the RRLC loads include at least one internal RLC protocol Data Unit, and the RRLC packet header may include following information：
Data/control flag bit（), D/C for representing that the RRLC protocol Data Units are data protocol data unit or control protocol data cell.It can represent that the RRLC PDU are data protocol data unit with 1,0 represents that the RRLC PDU are control protocol data cell.
Converge flag bit（A), length is 1 bit, for representing that the protocol Data Unit is RRLC protocol Data Units or PDCP protocol Data Units, so that the packet received is sent to different protocol layers and handled by base station or relay station.It can represent that the PDU is RRLC protocol Data Units with 1,0 represents that the PDU is PDCP protocol Data Units.
At least one reserved bit（R), for realizing Function Extension, default value is zero；
RRLC protocol data unit sequence numbers（), SN the sequential delivery for RRLC protocol Data Units；Extension flag position（Ε Λ length is 1 bit, for representing in i-th of inside rlc protocol data
Whether internal RLC protocol Data Unit is also had after unit, and i is the integer more than or equal to 1.For example, can be represented after RLC PDU# i there is no RLC PDU with 0, represented also to have RLC PDU after RLC PDU# i with 1.
Cell is Wu Xian Wang Network temporary marks（C-RNTI J, for the unique mark terminal in a cell, its length is 16 bits, represents which terminal the RLC PDU# i in RRLC loads come from；
Logic Channel Identifier（LCIDJ, length is 5 bits, for one radio bearer of unique mark in a terminal, and the information of the radio bearer belonging to internal RLC protocol Data Units is determined with the cell together with the Xian Wang Network temporary marks；
Length Indication（Ll i), the length for representing internal RLC protocol Data Units；
Field is filled, 0 is filled in the filling field, the length to cause RRLC packet header is easy to machine processing as whole byte.
Mode two：The RRLC entities include aggregation entity.Aggregation entity in RRLC entities, RRLC protocol Data Units are generated according to the PDCP protocol Data Units of the packet sent by PDCP entities.
As shown in fig. 6, the RRLC protocol Data Units include RRLC packet header and RRLC loads.Wherein, the RRLC loads include at least one PDCP protocol Data Unit, and the RRLC packet header may include following information：Data/control flag bit（), D/C for representing that the RRLC protocol Data Units are data protocol data unit or control protocol data cell.It can represent that the RRLC PDU are data protocol data unit with 1,0 represents that the RRLC PDU are control protocol data cell.
Converge flag bit（A), length is 1 bit, for representing that the protocol Data Unit is RRLC protocol Data Units or PDCP protocol Data Units, so that the packet received is sent to different protocol layers and handled by base station or relay station.For example, can represent that the PDU is RRLC protocol Data Units with 1,0 represents that the PDU is PDCP protocol Data Units.
At least one reserved bit（R), for realizing Function Extension, default value is zero；
RRLC protocol data unit sequence numbers（), SN the sequential delivery for RRLC protocol Data Units；Extension flag position（Ei), length is 1 bit, and for representing whether there be PDCP protocol Data Units after i-th of PDCP protocol Data Unit, i is the integer more than or equal to 1.It can be represented with 0 in PDCP
There is no PDCP PDU after PDU#i, represented also to have PDCP PDU after PDCP PDU#i with 1.
Cell is Wu Xian Wang Network temporary marks（C-RNTIJ, for the unique mark terminal in a cell, its length is 16 bits, represents which terminal the PDCP PDU#i in RRLC loads come from；
Logic Channel Identifier（LCIDJ, length is 5 bits, for one radio bearer of unique mark in a terminal, and the information of the radio bearer belonging to PDCP protocol Data Units is determined with the cell together with the Xian Wang Network temporary marks；
Length Indication（), Lli for representing the length of PDCP protocol Data Units；
Field is filled, 0 is filled in the filling field, the length to cause RRLC packet header is easy to machine processing as whole byte.
Certainly, the RRLC entities can also carry out converge operation to the packet received by other means, not limited by the embodiment of the present invention.
Packet after converge operation is sent to the wireless chain control layer RLC entities for sending equipment by step 43, RRLC entities, so that the packet after converge operation is transferred to receiving device through wireless chain control layer, media access control layer, L1 layers.
In addition, to enable base station accurately to receive the packet of terminal, as illustrated, the method for the embodiment of the present invention three may also include：
Step 44, RLC entities to receiving the packet after converge operation split/converging operation after be sent to media access control layer MAC entity；
Step 45, the MAC entity are transferred to receiving device by the packet multiplexing received to same transmission channel by L1 layers.
Wherein, the processing procedure and mode of step 44 and step 45 with it is of the prior art identical, will not be repeated here.
As seen from the above, the method of the embodiment of the present invention three, by passing through converge operation by newly-increased RRLC entities, by the packet of the radio bearer of at least two terminals by a transmission channel, the defect of the waste Radio Resource caused in the prior art by the packet of the radio bearer corresponding to one terminal of a transmission channel is overcome.Thus, the embodiment of the present invention takes full advantage of relay station to base station
Transfer resource on this wireless links, so as to optimize the systematic function of Zhong Ji Wang Network systems.Method with the embodiment of the present invention three is corresponding, and the embodiment of the present invention four additionally provides a kind of method of raising Zhong Ji Wang Network systematic functions.This example IV is mainly the processing method for describing base station side corresponding with embodiment three-phase.
As shown in figure 8, the method for the raising Zhong Ji Wang Network systematic functions of the embodiment of the present invention four includes：Step 51, the service convergence layer RRLC entities of base station side receive the packet sent by transmission equipment, and the wherein packet is to be transferred to service convergence layer via L1 layers, media access control layer, wireless chain control layer.
Wherein, in this embodiment, the transmission equipment can refer to relay station.In the packet sent via L1 layers, MAC layers, rlc layer transmission by relay station, the packet sent by transmission equipment is modulated coding and the on wireless links processing such as transmission by the L1 layers first, and the packet after processing is sent to media access control layer MAC entity, then the packet is demultiplexed on logic channel by MAC entity, and it is sent to wireless chain control layer RLC entities, last RLC entities remove the RLC data protocol units received, and the packet after processing is sent into RRLC entities.
Step 52, the RRLC entities of the base station side carry out solution converge operation to the packet.
Equally, RRLC entities, which carry out solution converge operation to the packet, to be realized by least following two modes.
Mode one：The RRLC entities include inside RLC entities and aggregation entity.The RRLC protocol Data Units sent by the RLC entities of wireless chain control layer are removed by the aggregation entity in the RRLC entities first, and the packet after processing is sent to the inside RLC entities of RRLC entities, then the inside rlc protocol data cell received by the aggregation entity is removed by the inside RLC entities in the RRLC entities, acquisition need to be sent to the packet of packet data convergence protocol PDCP entities.
In this fashion, the RRLC PDU are included content and form are with Fig. 5 Suo Shi and its corresponding in embodiment three describing identical.
Mode two：The RRLC entities include aggregation entity.Aggregation entity in RRLC entities removes the RRLC protocol Data Units sent by the RLC entities of wireless chain control layer, and acquisition need to be sent to grouped data remittance
The packet of poly- protocol layer PDCP entities.
In this fashion, the RRLC PDU are included content and form are with Fig. 6 Suo Shi and its corresponding in embodiment three describing identical.
Packet through solving converge operation is sent to corresponding packet data convergence protocol PDCP entities by step 53, the RRLC entities of the base station side.
It can be seen that by the method for the embodiment of the present invention four, by the RRLC entities by increasing newly by solving converge operation, packet by the radio bearer of at least two terminals of a transmission channel is sent respectively to corresponding terminal, the defect of the waste Radio Resource caused in the prior art by the packet of the radio bearer corresponding to one terminal of a transmission channel is overcome.Thus, the embodiment of the present invention takes full advantage of transfer resource of the relay station to this wireless links of base station, so as to optimize the systematic function of Zhong Ji Wang Network systems.
It will be described respectively on down direction in embodiment five and embodiment six, the processing procedure of base station side and relay station side.In embodiment five, the processing mode of base station side is identical with described in embodiment three, the difference is that the executive agent in embodiment three in each step becomes the corresponding executive agent of base station side；And in embodiment six, the processing mode of relay station side is also identical with described in example IV, unlike, the executive agent in example IV in each step becomes the corresponding executive agent of relay station side.The detailed process of realization is explained in detail below.
The embodiment of the present invention five provides a kind of method of raising Zhong Ji Wang Network systematic functions, comprises the following steps：
Step 61, the service convergence layer RRLC entities of base station side receive the packet sent by least two packet data convergence protocol PDCP entities.The packet that the PDCP entities are sent is the packet of the radio bearer from least two terminals.
Step 62, the RRLC entities of base station side carry out converge operation to the packet.
Wherein, the RRLC entities carry out the process of converge operation, identical with described in step 42.Packet after converge operation is sent to the wireless chain control layer RLC entities for sending equipment by step 63, RRLC entities, so that the packet after converge operation connects through wireless chain control layer, media
Enter key-course, L1 layer and be transferred to receiving device.
In addition, to enable relay station side accurately to receive the packet of terminal, the method for the embodiment of the present invention five may also include：
Step 64, RLC entities to receiving the packet after converge operation split/converging operation after be sent to media access control layer MAC entity；
Step 65, the MAC entity are transferred to receiving device by the packet multiplexing received to same transmission channel by L1 layers.
As seen from the above, the method of the embodiment of the present invention five, by passing through converge operation by newly-increased RRLC entities, by the packet of the radio bearer of at least two terminals by a transmission channel, the defect of the waste Radio Resource caused in the prior art by the packet of the radio bearer corresponding to one terminal of a transmission channel is overcome.Thus, the embodiment of the present invention takes full advantage of transfer resource of the relay station to this wireless links of base station, so as to optimize the systematic function of Zhong Ji Wang Network systems.
Corresponding with embodiment five, the embodiment of the present invention six additionally provides a kind of method of raising Zhong Ji Wang Network systematic functions, comprises the following steps：
Step 71, the service convergence layer RRLC entities of relay station side receive the packet sent by transmission equipment, and the wherein packet is to be transferred to service convergence layer via L1 layers, media access control layer, wireless chain control layer.
Step 72, the RRLC entities of the relay station side carry out solution converge operation to the packet.
Wherein, the process of RRLC entities progress solution converge operation is identical with described in step 52.Packet through solving converge operation is sent to corresponding packet data convergence protocol PDCP entities by step 73, the RRLC entities of the relay station side.
It can be seen that by the method for the embodiment of the present invention six, by the RRLC entities by increasing newly by solving converge operation, packet by the radio bearer of at least two terminals of a transmission channel is sent respectively to corresponding terminal, the defect of the waste Radio Resource caused in the prior art by the packet of the radio bearer corresponding to one terminal of a transmission channel is overcome.Thus, the embodiment of the present invention takes full advantage of transfer resource of the relay station to this wireless links of base station, so as to optimize Zhong Ji Wang Network systems
Systematic function.
One of ordinary skill in the art will appreciate that realizing all or part of flow in above-described embodiment method, computer program is can be by instruct the hardware of correlation to complete, described program can be stored in a computer read/write memory medium, the program is upon execution, it may include such as the flow of the embodiment of above-mentioned each method.Wherein, described storage medium can be magnetic disc, CD, read-only memory（Read-On ly Memory, ROM) or random access memory (Random Acce s s Memory, RAM) etc..
As shown in figure 9, the embodiment of the present invention seven additionally provides a kind of protocol entity.Including：
Receiving unit 81, for receiving by the packet of at least two packet data convergence protocol PDCP entities transmission of relay station/base station side；
Unit 82 is converged, for carrying out converge operation to the packet received by the receiving unit 81；Transmitting element 83, wireless chain control layer RLC entities for the packet after converge operation received by the convergence unit 82 to be sent to relay station/base station side, so that the packet after converge operation is transferred to base station/relay station through wireless chain control layer, media access control layer, L1 layers.
Wherein, the convergence unit 82 can be by the converge operation of the complete paired data bag of at least two modes.Therefore, the convergence unit 82 may include：First convergence module, for generating internal rlc protocol data cell according to the PDCP protocol Data Units sent by the PDCP entities of relay station/base station side；Second convergence module, the inside RLC protocol Data Units for being generated according to first convergence module generate RRLC protocol Data Units.Or, the convergence unit 82 may also include：3rd convergence module, for generating RRLC protocol Data Units according to the PDCP protocol Data Units sent by the PDCP entities of relay station/base station side.
Also, the protocol entity shown in Fig. 9 is located in the service convergence layer of relay station or base station.
As seen from the above, the protocol entity of the embodiment of the present invention seven, converge operation is passed through by convergence unit, by the packet of the radio bearer of at least two terminals by a transmission channel, the defect of the waste Radio Resource caused in the prior art by the packet of the radio bearer corresponding to one terminal of a transmission channel is overcome.Thus, the embodiment of the present invention seven takes full advantage of transfer resource of the relay station to this wireless links of base station, so as to optimize the systematic function of Zhong Ji Wang Network systems.
As shown in Fig. 10, the embodiment of the present invention eight additionally provides a kind of protocol entity.Including：
Receiving unit 91, for receiving the packet that relay station/base station is sent, the wherein packet is transmitted by L1 layers, wireless chain control layer, the media access control layer of base station/relay station side；
Solution convergence unit 92, for carrying out solution converge operation to the packet received by the receiving unit 91；Transmitting element 93, for the packet after solving converge operation received by solution convergence unit 92 to be sent into the corresponding packet data convergence protocol PDCP entities in base station/relay station side.
Corresponding with embodiment seven, solution convergence unit 92 also can be by the solution converge operation of the complete paired data bag of at least two modes.Therefore, solution convergence unit 92 includes：First solution convergence module, for removing by the RRLC protocol Data Units of the RLC entities transmission of the wireless chain control layer of base station/relay station side, and is sent to the second solution convergence module by the packet after processing；Second solution convergence module, for removing the inside rlc protocol data cell received by the first solution convergence module, obtains the packet for the packet data convergence protocol PDCP entities that need to be sent to base station/relay station side.
Or, solution convergence unit 92 may also include：3rd solution convergence module, for removing by the RRLC protocol Data Units of the RLC entities transmission of the wireless chain control layer of the base station/relay station side, obtains the packet for the packet data convergence protocol PDCP entities that need to be sent to base station/relay station side.
Equally, the protocol entity shown in Fig. 10 can be located in the service convergence layer of relay station or base station.
It can be seen that by the method for the embodiment of the present invention six, by solution convergence unit by solving converge operation, packet by the radio bearer of at least two terminals of a transmission channel is sent respectively to corresponding terminal, the defect of the waste Radio Resource caused in the prior art by the packet of the radio bearer corresponding to one terminal of a transmission channel is overcome.Thus, the embodiment of the present invention eight takes full advantage of transfer resource of the relay station to this wireless links of base station, so as to optimize the systematic function of Zhong Ji Wang Network systems.
Certainly, in a particular application, the function of each corresponding functional module in the protocol entity shown in Fig. 9 and Fig. 10 can be also integrated in same functional module and realized.And the protocol entity for being integrated with the function of Fig. 9 and Fig. 10 the corresponding function module can be located at relay station side or base station side, simply on different communication directions, each functional module plays its corresponding function.
In addition, the embodiment of the present invention can be mainly used in the technical fields such as Zhong Ji Wang Network.
In summary, the embodiment of the present invention improves method, communication system and the protocol entity of Zhong Ji Wang Network systematic functions, the packet of the radio bearer of at least two terminals is passed through into a transmission channel by newly-increased RRLC entities, or the packet Jing Guo one transmission channel is respectively transmitted to corresponding terminal, overcome the defect of the waste Radio Resource caused in the prior art by the packet of the radio bearer corresponding to one terminal of a transmission channel.Thus, the embodiment of the present invention takes full advantage of transfer resource of the relay station to this wireless links of base station, so as to optimize the systematic function of Zhong Ji Wang Network systems.
It is described above; only embodiment of the invention, but protection scope of the present invention is not limited thereto, any one skilled in the art the invention discloses technical scope in; change or replacement can be readily occurred in, should be all included within the scope of the present invention.Therefore, protection scope of the present invention should be based on the protection scope of the described claims.
Claims (1)
- Claims1st, a kind of method of raising Zhong Ji Wang Network systematic functions, it is characterised in that including：Service convergence layer RRLC entities receive the packet sent by least two packet data convergence protocol PDCP entities；The RRLC entities carry out converge operation to the packet；The packet after converge operation is sent to wireless chain control layer RLC entities, so that the packet after converge operation is transferred to receiving device through wireless chain control layer, media access control layer, L1 layers.2nd, according to the method described in claim 1, it is characterised in that the RRLC entities include inside RLC entities and aggregation entity；The RRLC entities carry out converge operation to packet to be included：The PDCP protocol Data Units that the internal RLC entities are sent according to the PDCP entities generate internal rlc protocol data cell；The aggregation entity generates RRLC protocol Data Units according to the inside RLC protocol Data Units of the generation.3rd, method according to claim 2, it is characterised in that the RRLC protocol Data Units include：RRLC packet header and RRLC loads；Wherein, the RRLC loads include at least one internal RLC protocol Data Unit；The RRLC packet header includes following information：Data/control flag bit, for representing that the RRLC protocol Data Units are data protocol data unit or control protocol data cell；Flag bit is converged, for representing that the protocol Data Unit is RRLC protocol Data Units or PDCP protocol Data Units；At least one reserved bit, for realizing Function Extension, default value is zero；RRLC protocol data unit sequence numbers, the sequential delivery for RRLC protocol Data Units；Extension flag position, for representing whether there be internal RLC protocol Data Units after i-th of inside rlc protocol data cell, i is the integer more than or equal to 1； Cell is Wu Xian Wang Network temporary marks, for the unique mark terminal in a cell；Logic Channel Identifier, for one radio bearer of unique mark in a terminal, and determines with the cell information of the radio bearer belonging to internal RLC protocol Data Units together with the Xian Wang Network temporary marks；Length Indication, the length for representing internal RLC protocol Data Units；Field is filled, 0 is filled in the filling field so that the length in RRLC packet header is whole byte, is easy to machine processing.4th, according to the method described in claim 1, it is characterised in that the RRLC entities include aggregation entity；The RRLC entities carry out converge operation to the packet to be included：Data cell.5th, method according to claim 4, it is characterised in that the RRLC protocol Data Units include RRLC packet header and RRLC loads；Wherein, the RRLC loads include at least one PDCP protocol Data Unit；The RRLC packet header at least includes following information：Data/control flag bit, for representing that the RRLC protocol Data Units are data protocol data unit or control protocol data cell；Flag bit is converged, for representing that the protocol Data Unit is RRLC protocol Data Units or PDCP protocol Data Units；At least one reserved bit, for realizing Function Extension, default value is zero；RRLC protocol data unit sequence numbers, the sequential delivery for RRLC protocol Data Units；Extension flag position, for representing whether there be PDCP protocol Data Units after i-th of PDCP protocol Data Unit, i is the integer more than or equal to 1；Cell is Wu Xian Wang Network temporary marks, for the unique mark terminal in a cell；Logic Channel Identifier, for one radio bearer of unique mark in a terminal, and determines with the cell information of the radio bearer belonging to PDCP protocol Data Units together with the Xian Wang Network temporary marks；Length Indication, the length for representing PDCP protocol Data Units； Field is filled, 0 is filled in the filling field so that the length in RRLC packet header is whole byte, is easy to machine processing.6th, according to claim 1-5 any one methods described, it is characterised in that the packet by after converge operation is transferred to receiving device through wireless chain control layer, media access control layer, L1 layers to be included：The RLC entities to receiving the packet after converge operation split/converging operation after be sent to the media access control layer MAC entity；The MAC entity is transferred to the receiving device by the packet multiplexing received to same transmission channel by 1 layer of the L.7th, method according to claim 6, it is characterised in that the receiving device includes base station or relay station.8th, a kind of method of raising Zhong Ji Wang Network systematic functions, it is characterised in that including：Service convergence layer RRLC entities receive the packet sent by transmission equipment, wherein the packet is to be transferred to the service convergence layer via L1 layers, media access control layer, wireless chain control layer；The RRLC entities carry out solution converge operation to the packet；The packet through solving converge operation is sent to corresponding packet data convergence protocol PDCP entities.9th, method according to claim 8, it is characterised in that the RRLC entities include inside RLC entities and aggregation entity；The RRLC entities, which carry out solution converge operation to the packet, to be included：The aggregation entity removes the RRLC protocol Data Units sent by the RLC entities of the wireless chain control layer, and the packet after processing is sent to the inside RLC entities of the RRLC entities；The internal RLC entities remove the inside rlc protocol data cell received by the aggregation entity, and acquisition need to be sent to the packet of the packet data convergence protocol PDCP entities.10, method according to claim 8, it is characterised in that the RRLC entities include aggregation entity；The RRLC entities, which carry out solution converge operation to the packet, to be included：The aggregation entity removes the RRLC protocol Data Units sent by the RLC entities of the wireless chain control layer, and acquisition need to be sent to the packet of packet data convergence protocol PDCP entities. 11, according to any one methods describeds of claim 8-1 0, it is characterised in that the step of service convergence layer RRLC entities receive the packet sent by transmission equipment before, methods described also includes：The packet sent by the transmission equipment is handled, and the packet after processing is sent into the media access control layer MAC entity by described L1 layers；The packet is demultiplexed on logic channel by the MAC entities, and is sent to the wireless chain control layer RLC entities；The RLC entities remove the RLC data protocol units received, and the packet after processing is sent into the RRLC entities.12nd, the method according to right wants 11, it is characterised in that the transmission equipment includes relay station or base station.13, a kind of protocol entity, it is characterised in that including：Receiving unit, for receiving by the packet of at least two packet data convergence protocol PDCP entities transmission of relay station/base station side；Unit is converged, for carrying out converge operation to the packet received by the receiving unit；Transmitting element, wireless chain control layer RLC entities for the packet after converge operation received by the convergence unit to be sent to relay station/base station side, so that the packet after converge operation is transferred to the base station/relay station through wireless chain control layer, media access control layer, L1 layers.14th, the protocol entity according to claim 13, it is characterised in that the convergence unit includes：First convergence module, for generating internal rlc protocol data cell according to the PDCP protocol Data Units sent by the PDCP entities of the relay station/base station side；Second convergence module, the inside RLC protocol Data Units for being generated according to first convergence module generate RRLC protocol Data Units.15th, the protocol entity according to claim 13, it is characterised in that the convergence unit includes：3rd convergence module, for generating RRLC protocol Data Units according to the PDCP protocol Data Units sent by the PDCP entities of the relay station/base station side.16th, according to any described protocol entities of claim 1 3-15, it is characterised in that the agreement is real Body is located at the relay station or the service convergence layer of base station.17th, a kind of protocol entity, it is characterised in that including：Receiving unit, for receiving the packet that relay station/base station is sent, wherein the packet is transmitted via L1 layers, wireless chain control layer, the media access control layer of base station/relay station side；Solution convergence unit, for carrying out solution converge operation to the packet received by the receiving unit；Transmitting element, for the packet after solving converge operation received by the solution convergence unit to be sent into the corresponding packet data convergence protocol PDCP entities in base station/relay station side.18th, protocol entity according to claim 17, it is characterised in that the solution convergence unit includes：First solution convergence module, for removing by the RRLC protocol Data Units of the RLC entities transmission of the wireless chain control layer of the base station/relay station side, and is sent to the second solution convergence module by the packet after processing；Second solution convergence module, for removing the inside rlc protocol data cell received by the described first solution convergence module, obtains the packet for the packet data convergence protocol PDCP entities that need to be sent to the base station/relay station side.19th, protocol entity according to claim 17, it is characterised in that the solution convergence unit includes：3rd solution convergence module, for removing by the RRLC protocol Data Units of the RLC entities transmission of the wireless chain control layer of the base station/relay station side, the packet for the packet data convergence protocol PDCP entities that need to be sent to the base station/relay station side is obtained.20th, according to any described protocol entities of claim 1 7-19, it is characterised in that the protocol entity is located at the relay station or the service convergence layer of base station.21st, a kind of communication system, it is characterised in that including：At least two packet data convergence protocol PDCP entities, service convergence layer RRLC entities, and wireless chain control layer RLC entities；Wherein described PDCP is physically located at packet data convergence protocol, the RRLC is physically located at service convergence layer, the RLC is physically located at wireless chain control layer, and the service convergence layer is located between the packet data convergence protocol and the wireless chain control layer；The PDCP entities, for being sent to the RRLC entities from high-rise packet；The RRLC entities, the packet at least two PDCP entities to be sent carries out convergence behaviour Make, and the packet after converge operation is sent to the RLC entities；The RLC entities, for carrying out splitting/converging operation to the packet after converge operation received.22nd, system according to claim 21, it is characterised in that also include：Media access control layer MAC entity, for by the packet multiplexing after the segmented/converging operation to same transmission channel, receiving device to be transferred to through L1 layers.23rd, a kind of communication system, it is characterised in that including：At least two packet data convergence protocol PDCP entities, service convergence layer RRLC entities, and wireless chain control layer RLC entities；Wherein described PDCP is physically located at packet data convergence protocol, the RRLC is physically located at service convergence layer, the RLC is physically located at wireless chain control layer, and the service convergence layer is located between the packet data convergence protocol and the wireless chain control layer；The RLC entities, for carrying out the packet received to split/converging operation, and are sent to the RRLC entities by the packet after processing；The RRLC entities, the packet for the RLC entities to be sent carries out solution converge operation, and the packet after solving converge operation is sent into corresponding PDCP entities；The PDCP entities, for receiving the packet sent by the RRLC entities.24th, system according to claim 23, it is characterised in that also include：Media access control layer MAC entity, for that will be carried out being demultiplexed into logic channel by the L1 layers of packet received, and is sent to the RLC entities by the packet after processing.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/CN2009/070764 WO2010102453A1 (en) | 2009-03-12 | 2009-03-12 | Method, communication system and protocol entity for improving performance of relay network system |
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| CN102369784A true CN102369784A (en) | 2012-03-07 |
| CN102369784B CN102369784B (en) | 2014-03-12 |
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| WO (1) | WO2010102453A1 (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105635081A (en) * | 2014-11-07 | 2016-06-01 | 中国移动通信集团公司 | Method and device for transmitting message |
| CN107295459A (en) * | 2016-03-30 | 2017-10-24 | 财团法人工业技术研究院 | Communication system, communication device, base station and method for D2D communication |
| WO2019101211A1 (en) * | 2017-11-27 | 2019-05-31 | 华为技术有限公司 | Communication method, communication node, and system |
| CN110447261A (en) * | 2017-03-23 | 2019-11-12 | Oppo广东移动通信有限公司 | Transmit method, terminal device and the network equipment of data |
| US10524162B2 (en) | 2016-03-30 | 2019-12-31 | Industrial Technology Research Institute | Communication device and method thereof for D2D communications |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1913534B (en) * | 2006-08-17 | 2010-12-01 | 华为技术有限公司 | Data processing method and communication equipment |
| TWI466518B (en) * | 2006-12-12 | 2014-12-21 | Interdigital Tech Corp | Method and apparatus for transmitting and receiving a packet via high speed downlink packet access |
| CN101141347B (en) * | 2007-05-24 | 2012-12-19 | 中兴通讯股份有限公司 | Multi-path ethernet signal gathering apparatus and method |
-
2009
- 2009-03-12 WO PCT/CN2009/070764 patent/WO2010102453A1/en active Application Filing
- 2009-03-12 CN CN200980157586.XA patent/CN102369784B/en not_active Expired - Fee Related
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105635081A (en) * | 2014-11-07 | 2016-06-01 | 中国移动通信集团公司 | Method and device for transmitting message |
| CN105635081B (en) * | 2014-11-07 | 2018-10-26 | 中国移动通信集团公司 | A kind of method and device that message is sent |
| CN107295459A (en) * | 2016-03-30 | 2017-10-24 | 财团法人工业技术研究院 | Communication system, communication device, base station and method for D2D communication |
| CN107295459B (en) * | 2016-03-30 | 2019-12-03 | 财团法人工业技术研究院 | Communication system, communication device, base station and method for D2D communication |
| US10524162B2 (en) | 2016-03-30 | 2019-12-31 | Industrial Technology Research Institute | Communication device and method thereof for D2D communications |
| CN110447261A (en) * | 2017-03-23 | 2019-11-12 | Oppo广东移动通信有限公司 | Transmit method, terminal device and the network equipment of data |
| CN110447261B (en) * | 2017-03-23 | 2024-03-01 | Oppo广东移动通信有限公司 | Method for transmitting data, terminal device and network device |
| WO2019101211A1 (en) * | 2017-11-27 | 2019-05-31 | 华为技术有限公司 | Communication method, communication node, and system |
| CN109842440A (en) * | 2017-11-27 | 2019-06-04 | 华为技术有限公司 | A kind of communication means, communication node and system |
| CN109842440B (en) * | 2017-11-27 | 2021-08-27 | 华为技术有限公司 | Communication method, communication node and system |
| US11483058B2 (en) | 2017-11-27 | 2022-10-25 | Huawei Technologies Co., Ltd. | Communication method, communications node, and system |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2010102453A1 (en) | 2010-09-16 |
| CN102369784B (en) | 2014-03-12 |
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