CN102238757B

CN102238757B - Method and equipment for transmitting forwarding data by utilizing dedicated data radio bearer

Info

Publication number: CN102238757B
Application number: CN201010165501.7A
Authority: CN
Inventors: 刘佳敏; 鲍炜
Original assignee: China Academy of Telecommunications Technology CATT
Current assignee: China Academy of Telecommunications Technology CATT; Datang Mobile Communications Equipment Co Ltd
Priority date: 2010-04-30
Filing date: 2010-04-30
Publication date: 2014-07-23
Anticipated expiration: 2030-04-30
Also published as: CN102238757A

Abstract

The embodiment of the invention discloses a method and equipment for transmitting forwarding data by utilizing a dedicated data radio bearer. According to the application of the technical scheme disclosed by the embodiment of the invention, a forwarding channel is mapped into the dedicated data radio bearer for dedicatedly transmitting the forwarding data on an interface between a base station and rely nodes so that the forwarding data transmission is ensured, a longer time delay of forwarding data transmission, caused by the transmission of the forwarding data and normal user data on the same transmission channel, incapability of meeting requirement if switching interruption time delay and the user experience reduction are avoided, and the influences of the forwarding data on the normal data processing, such as hearder compression and the like are also avoided.

Description

A kind of method and apparatus that carries out forwarding data transmission by exclusive data radio bearer

Technical field

The present invention relates to communication technical field, particularly a kind of method and apparatus that carries out forwarding data transmission by exclusive data radio bearer (Data Radio Bearer, DRB).

Background technology

In following mobile communication system, for example, after in three generations (B3G:Beyond Third Generation) or LTE-A(Long Term Evolution-Advanced, senior Long Term Evolution) in, system will provide higher peak data rate and cell throughout, also need larger bandwidth simultaneously, unassigned bandwidth below 2GHz is little at present, and the part or all of bandwidth that B3G system needs can only be in higher frequency range, and for example 3GHz finds above.Frequency range is higher, and it is faster that radio wave propagation is decayed, and transmission range is shorter, therefore, under same overlay area, ensure continuous covering, needs more base station, and because base station has higher cost conventionally, this can increase the cost of arranging net undoubtedly.In order to solve the Cost Problems of arranging net, each manufacturer and standardization body begin one's study via node (Relay Node, RN) are incorporated in cellular system, increase and cover.

As shown in Figure 1, be the structural representation that in prior art, LTE-A system is introduced the network architecture after RN, RN is linked into core net by the donor cell under eNB, and core net do not have direct wireline interface, and each RN can control one or more communities.Under this framework, the interface between UE and RN is called Uu, and RN and DeNB(Donor Evolved Node B, base station) between interface be called Un.

As shown in Figure 2, for introducing the network topology schematic diagram of the network architecture of finally selecting after Relay node in prior art.Wherein, data transmission procedure and bearing relation are as follows:

At down direction, the PGW/SGW that the IP that issues UE wraps in UE is mapped as the GTP(GPRS Tunnelling Protocol of UE, general packet wireless service tunnel protocol) tunnel (tunnel), send to DeNB from the PGW/SGW of UE.DeNB is according to each UE EPS(Evolved Packet System, the grouping system of evolution) carrying QCI(QoS Class Identifier, service quality rating mark) UE GTP tunnel is mapped as one by one to the RN DRB of Un interface, the different UEs EPS carrying with identical QCI is mapped on same RN DRB.UE GTP tunnel is mapped as the UE DRB on Uu mouth by RN, and the bag of receiving is issued to UE.

At up direction, RN and DeNB complete similar carrying mapping function.

QoS(Quality of Service, service quality) mechanism is the critical function of EPS system, QoS mechanism provides certain transmission availability and reliability guarantee for different business, makes user in communication process, keep good experience.QoS in EPS controls and carries out based on carrying.End-to-end service comprises EPS carrying and external bearer.EPS carrying belongs to the category of EPS, and external bearer depends on the system beyond EPS.

EPS carrying framework in network configuration shown in Fig. 2 as shown in Figure 3.EPS between UE to PGW carrying is divided into UE to the E-RAB(E-UTRAN Radio Access Bearer between S-GW, E-UTRAN Radio Access Bearer) and S-GW to two sections of the S5/S8 carryings between P-GW.E-RAB can be divided into again UE to the Uu carrying between RN, and this is one section of radio bearer, and RN is to the S1 carrying between S-GW.

Introduce after RN one that EPS carrying is many: RN EPS carrying.Before setting up UE EPS carrying, RN EPS carrying exists conventionally.When RN starts, setting up Un carrying between RN and DeNB, is also one section of radio bearer, comprises RN SRB(Signalling Radio Bearer, Signaling Radio Bearer) (for command transmitting) and RN DRB(transmitting user data).S1 is carried on Un interface need to be mapped to transmission on RN DRB.

The UE all business data packet mutual with P-GW all need to be mapped in corresponding UE EPS carrying to be transmitted, and each network element node is dispatched packet according to the qos parameter carrying under business data packet and transmitted.

Wherein, it should be noted that, for LTE, E-RAB ID equals EPS Bearer ID.

The qos parameter of EPS carrying level comprises: ARP, QCI, GBR and MBR:

ARP(Allocation and Retention Priority characteristics): for definition, when resource-constrained, whether the foundation of a carrying, renewal are received or refusal.ARP is also applied to Access Network side, and whether definition, in the time of resource-constrained (as switched) generation unexpectedly, allows the carrying that certain has been set up to discharge.

QCI(QoS Class Identifier): the qos parameter that access network node is relevant, for controlling the transmission policy of packet, as the configuration of scheduling, receiving, queue management and link layer protocol.

GBR(GBR Guaranteed Bit Rate): be designated as a GBR transmission rate providing is provided.

MBR(Maximum Bit Rate): for a GBR is provided by the upper limit of the transmission rate providing, in current protocol version, MBR should equal GBR.

E-UTRAN(Evolved Universal Terrestrial Radio Access Network, the universal land radio access web of evolution) each node need to determine the packet that how to process in corresponding EPS carrying according to above-mentioned qos parameter, to meet the demand of QoS.QoS relevant parameter comprises that the information such as priority are clearly divided into 9 kinds of QCI in standard, is also the QCI information of carrying in current signaling, can know the information such as corresponding qos parameter and priority with QCI value.

In concrete application scenarios, UE can switch between RN and DeNB, RN and RN, RN and other eNB, specifically refer to UE due to link-quality or other reasons by its wireless connections by source eNB converting into target eNB.

In order to carry out data lossless switching, for user's face, need to carry out data forwarding (data forwarding), the object of data forwarding is the downlink data part that eNB not having enough time of receiving from core net in source sends to the downlink data of UE or confirm through UE, for up be source eNB receive do not meet the UE upstream data that order is submitted to high level and then is buffered in source eNB.The object of data forwarding be by source node, do not have enough time process data forwarding to destination node, proceed process, to ensure continuity and the non-destructive of UE data.Its process is as follows:

In handoff preparation phase, between source eNB and target eNB, set up user's face tunnel of data forwarding.Each E-RAB that need to carry out forwarding data sets up a tunnel for upstream data forward or for downlink data forward.In handover execution stage, user data is from source eNB forward to target eNB.Switched the stage, source eNB continues a to the last bag " end marker " of forwarding subscriber face data.Target eNB is received " end marker ", thinks that forwarding data completes.

For the switching that relates to RN, the interface between RN and DeNB is the unique path that RN is connected with other nodes.No matter RN is as source eNB or target eNB, and user's forwarding data all needs by DeNB again to destination node.

If RN is as source node, the transmission path of forwarding data is sent to DeNB for first by RN, then is sent to destination node by DeNB.

If RN is as the destination node switching, the transmission path of forwarding data is for to be sent to DeNB by source node, then is sent to RN by DeNB.

Special, if UE switches between RN and DeNB, DeNB is source node or destination node, and DeNB transfers directly promoter or the terminator as forwarding data in no longer needing forwarding data to carry out, and forwarding data only need to transmit on Un interface.As can be seen here, relate in the handoff scenario of RN, user's forwarding data passage need to have corresponding mapping on the Un interface between RN and its DeNB, needs suitable DRB forwarding data is carried and transmit.

Realizing in process of the present invention, inventor finds that prior art at least exists following problem:

In prior art, X2 or S1 forwarding data passage all carry on wire link, lack to exclusive data radio bearer correlation map and the based Carrying Scheme at Un wave point.

Summary of the invention

The embodiment of the present invention provides a kind of method and apparatus that carries out forwarding data transmission by exclusive data radio bearer, sets up special exclusive data radio bearer, for carrying the switching forwarding data that mails to via node or send from via node.

For achieving the above object, the embodiment of the present invention provides a kind of method of carrying out forwarding data transmission by exclusive data radio bearer on the one hand, comprising:

When base station receive exclusive data radio bearer that network equipment sends set up Indication message time, described base station is set up and is exclusively used in the one or more exclusive data radio bearer that transmits forwarding data between described base station and via node;

Described base station and described via node carry out the transmission of forwarding data by described one or more exclusive data radio bearer;

In the time that described base station receives the releasing request message of exclusive data radio bearer of described network equipment transmission, described base station discharges described one or more exclusive data radio bearer.

On the other hand, the embodiment of the present invention also provides a kind of base station, comprising:

Communication module, sets up Indication message and/or the release Indication message of exclusive data radio bearer for what receive exclusive data radio bearer that network equipment sends;

Set up module, for receive when described communication module exclusive data radio bearer that network equipment sends set up Indication message time, set up and be exclusively used in the one or more exclusive data radio bearer that transmits forwarding data between described base station and via node;

Transport module, for being set up one or more exclusive data radio bearer and the described via node that module sets up and carried out the transmission of forwarding data by described;

Release module, when receive the releasing request message of the exclusive data radio bearer that described network equipment sends when described communication module, discharges described one or more exclusive data radio bearer.

On the other hand, the embodiment of the present invention also provides a kind of method of carrying out forwarding data transmission by exclusive data radio bearer, comprising:

Via node is set up Indication message according to the exclusive data radio bearer of base station, sets up with described base station the one or more exclusive data radio bearer that is exclusively used in transmission forwarding data;

The transmission of forwarding data is carried out by described one or more exclusive data radio bearer in described via node and described base station;

Described via node discharges Indication message according to the exclusive data radio bearer of described base station, discharges described one or more exclusive data radio bearer.

On the other hand, the embodiment of the present invention also provides a kind of via node, comprising:

Set up module, set up Indication message for the exclusive data radio bearer according to base station, set up with described base station the one or more exclusive data radio bearer that is exclusively used in transmission forwarding data;

Transport module, for being set up one or more exclusive data radio bearer and the described base station that module sets up and carried out the transmission of forwarding data by described;

Release module, for discharging Indication message according to the exclusive data radio bearer of described base station, discharges the described one or more exclusive data radio bearer that module is set up of setting up.

Compared with prior art, the present invention has the following advantages:

The technical scheme proposing by the application embodiment of the present invention, forward channel is mapped as on the interface between base station and via node to the exclusive data radio bearer of special transmission forwarding data, guarantee the transmission of forwarding data, avoid forwarding data and normal user data in identical transmission channel, to transmit caused forwarding data propagation delay time longer, handoff time delay does not meet the demands, user experiences reduction, also avoided forwarding data on normal data processing procedure as the impact of head compression etc.

Brief description of the drawings

In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.

Fig. 1 is the structural representation that in prior art, LTE-A system is introduced the network architecture after RN;

Fig. 2 is the network topology schematic diagram of introducing the network architecture of finally selecting after Relay node in prior art;

Fig. 3 is the network topology schematic diagram of introducing the carrying of the EPS in network system framework after Relay node in prior art;

Fig. 4 is that a kind of in the embodiment of the present invention carries out the method for forwarding data transmission at the schematic flow sheet of base station side by exclusive data radio bearer;

Fig. 5 is that a kind of method of forwarding data transmission of being undertaken by exclusive data radio bearer in the embodiment of the present invention is at the schematic flow sheet of via node side;

Fig. 6 is the schematic flow sheet that carries out the method for forwarding data transmission under a kind of concrete application scenarios in the embodiment of the present invention by exclusive data radio bearer;

Fig. 7 is the schematic flow sheet that carries out the method for forwarding data transmission under a kind of concrete application scenarios in the embodiment of the present invention by exclusive data radio bearer;

Fig. 8 is the schematic flow sheet that carries out the method for forwarding data transmission under a kind of concrete application scenarios in the embodiment of the present invention by exclusive data radio bearer;

Fig. 9 is the schematic flow sheet that carries out the method for forwarding data transmission under a kind of concrete application scenarios in the embodiment of the present invention by exclusive data radio bearer;

Figure 10 is the structural representation of a kind of base station in the embodiment of the present invention;

Figure 11 is the structural representation of a kind of via node in the embodiment of the present invention; .

Embodiment

As stated in the Background Art, in order to set up special exclusive data radio bearer, the embodiment of the present invention has proposed a kind of method of carrying out forwarding data transmission by exclusive data radio bearer.

As shown in Figure 4, be a kind of schematic flow sheet that carries out the method for forwarding data transmission by exclusive data radio bearer that the embodiment of the present invention provides, the method specifically comprises the following steps:

Step S401, when base station receive exclusive data radio bearer that network equipment sends set up Indication message time, base station is set up and is exclusively used in the one or more exclusive data radio bearer that transmits forwarding data between base station and via node.

Wherein, network equipment specifically refers to equipment of the core network, in concrete application scenarios, is RN MME.

The particular type of the equipment of concrete network side can need to be adjusted according to concrete scene, and such variation can't affect protection scope of the present invention.

Exclusive data radio bearer is specifically designed to transmission and switches forwarding data, and other user data in addition can not transmit thereon.

This step specifically comprises before realizing:

In the time that base station or relay node judges reach default exclusive data radio bearer trigger condition, base station or via node send the request message of setting up of exclusive data radio bearer to network equipment;

Confirm setting up after request message of exclusive data radio bearer at network equipment, base station receives the Indication message of setting up of exclusive data radio bearer that network equipment sends.

Wherein, default exclusive data radio bearer trigger condition, specifically comprises one or more in following three kinds of conditions:

Interface between condition one, base station and via node is enabled.

In concrete application scenarios, it is to judge by the foundation of whole SRB that concrete interface is enabled decision procedure.

Condition two, the current forwarding data that exists between base station and via node need to send.

Such judgement can be that base station side is initiated, and base station side detects while needing to transmit forwarding data between RN on Un mouth, and base station is judged and need to be set up exclusive data radio bearer as forwarding data.

Also can be initiated by via node, detect that at via node while needing to transmit forwarding data between base station, via node is judged and need to be set up exclusive data radio bearer as forwarding data on Un mouth.

Step S402, base station and via node carry out the transmission of forwarding data by one or more exclusive data radio bearer.

Also there are following two kinds of situations in the processing of this step:

When between base station and via node, only set up one be exclusively used in transmission forwarding data exclusive data radio bearer time, base station and via node pass through the whole forwarding data of exclusive data radio bearer transmissions; Or,

When between base station and via node, set up many be exclusively used in transmission forwarding data exclusive data radio bearer time, base station and via node are according to default transmission rule, by the corresponding forwarding data of corresponding exclusive data radio bearer transmissions.

In concrete application scenarios, exclusive data radio bearer, be specially the exclusive data radio bearer of the up forwarding data of one-way transmission, or the exclusive data radio bearer of the descending forwarding data of one-way transmission, or the exclusive data radio bearer of the up forwarding data of transmitted in both directions and descending forwarding data.

Wherein, when between base station and via node, set up many be exclusively used in transmission forwarding data exclusive data radio bearer time, base station and via node, according to default transmission rule, by the corresponding forwarding data of corresponding exclusive data radio bearer transmissions, are specially:

Base station is according to the Indication message of network equipment or be directly that many exclusive data radio bearers that are exclusively used in transmission forwarding data are determined different transmission priorities according to preset strategy, and base station and via node have the forwarding data of respective priority by corresponding exclusive data radio bearer transmissions; Or,

Base station is according to the Indication message of network equipment or be directly that many exclusive data radio bearers that are exclusively used in transmission forwarding data are determined different QCI grade of transmission according to preset strategy, and base station and via node have the forwarding data of corresponding QCI grade by corresponding exclusive data radio bearer transmissions.

Wherein, base station is that many exclusive data radio bearers that are exclusively used in transmission forwarding data configure identical or different transmission mode.

It should be noted that, in the time of unnecessary one of special DRB, the mapping relations (for example forwarding data has 9 types, need to be mapped on two DRB) between forwarding data and special DRB can have three kinds: the one, and base station configuration, the 2nd, base station and RN be decision separately voluntarily, and the 3rd, the mapping of standard acquiescence.

Step S403, in the time that base station receives the releasing request message of exclusive data radio bearer that network equipment sends, base station discharges one or more exclusive data radio bearer.

This step specifically comprises before realizing:

In the time that base station or relay node judges reach default exclusive data radio bearer release conditions, base station or via node send the releasing request message of exclusive data radio bearer to network equipment;

Confirm at network equipment after the releasing request message of exclusive data radio bearer, base station receives the release Indication message of the exclusive data radio bearer of network equipment transmission.

Wherein, default exclusive data radio bearer release conditions, specifically comprises:

Interface between base station and via node stops or via node is closed; Or,

Base station or via node are determined the current end of transmission of forwarding data that needs transmission.

Before step S403, also comprise: base station receives the process of the modify request messages of the exclusive data radio bearer of network equipment transmission, is specially:

In the time that base station or relay node judges reach default exclusive data radio bearer modification condition, base station or via node send the modify request messages of exclusive data radio bearer to network equipment;

Confirm at network equipment after the modify request messages of exclusive data radio bearer, base station receives the amendment Indication message of the exclusive data radio bearer of network equipment transmission.

Wherein, default exclusive data radio bearer modification condition, specifically comprises:

The current QoS of base station and relay node judges does not meet current system requirements; Or,

Base station or via node are determined the forwarding data of the new needs transmission of current appearance, or the forwarding data transmitting disappears; Or,

Base station or via node are determined currently need to carry out resource adjustment.

According to above-mentioned amendment request, can modify to exclusive data radio bearer.

Above-mentioned handling process is the handling process of base station side, corresponding, the handling process of the via node side that the embodiment of the present invention also proposes.

As shown in Figure 5, a kind of method of forwarding data transmission of being undertaken by exclusive data radio bearer providing for the embodiment of the present invention is at the schematic flow sheet of via node side, and the method specifically comprises the following steps:

Step S501, via node are set up Indication message according to the exclusive data radio bearer of base station, set up with base station the one or more exclusive data radio bearer that is exclusively used in transmission forwarding data.

Before this step, also comprise:

In the time that relay node judges reaches default exclusive data radio bearer trigger condition, send exclusive data radio bearer to network side and set up request, make base station send exclusive data radio bearer and set up Indication message.

Wherein, default exclusive data radio bearer trigger condition, specifically comprises one or more in following two kinds of conditions:

Interface between condition one, via node and base-station node is enabled.

Condition two, the current forwarding data that exists between base station and via node of relay node judges need to send.

Condition one in the respective description of above-mentioned condition and step S401 and the explanation of condition two are similar, are not repeated.

Step S502, via node carry out the transmission of forwarding data by one or more exclusive data radio bearer and base station, are specially:

In the time only setting up an exclusive data radio bearer that is exclusively used in transmission forwarding data between via node and base station, via node is by the whole forwarding data between exclusive data radio bearer transmissions base station and via node; Or,

In the time setting up many exclusive data radio bearers that are exclusively used in transmission forwarding data between via node and base station, via node is according to default transmission rule, by corresponding forwarding data between corresponding exclusive data radio bearer transmissions base station and via node.

Wherein, when between base station and via node, set up many be exclusively used in transmission forwarding data exclusive data radio bearer time, the processing of this step further comprises:

Base station is that many exclusive data radio bearers that are exclusively used in transmission forwarding data are determined different transmission priorities, and via node has the forwarding data of respective priority by corresponding exclusive data radio bearer and base-station transmission; Or,

Base station is that many exclusive data radio bearers that are exclusively used in transmission forwarding data are determined different QCI grade of transmission, and via node has the forwarding data of corresponding QCI grade by corresponding exclusive data radio bearer transmissions.

Wherein, base station is also for many exclusive data radio bearers that are exclusively used in transmission forwarding data configure identical or different transmission mode.

Step S503, via node discharge Indication message according to the exclusive data radio bearer of base station, discharge one or more exclusive data radio bearer.

Wherein, in the time that relay node judges reaches default exclusive data radio bearer modification condition, send exclusive data radio bearer modification request message to network side, make base station send exclusive data radio bearer modification Indication message.

Concrete, default exclusive data radio bearer modification condition comprises:

Compared with prior art, the present invention has the following advantages:

Below, in conjunction with concrete application scenarios, the technical scheme that the embodiment of the present invention is proposed is elaborated.

In concrete application scenarios, the technical thought of the technical scheme that the embodiment of the present invention proposes is: special exclusive data radio bearer is set up in base station on the interface (Un interface) between itself and via node, for carrying the switching forwarding data that mails to RN or send from RN.

For convenience of explanation, in description later, the embodiment of the present invention directly represents base station with DeNB, and RN represents via node, and Un interface represents the interface between base station and via node, and the variation of concrete title can't affect protection scope of the present invention.

The technical scheme proposing according to the embodiment of the present invention, in DeNB side, DeNB sets up one or more of exclusive data radio bearers for transmitting the forwarding data of switching on Un interface, specifically comprise by exclusive data radio bearer and receive the forwarding data that RN sends, and in subsequent treatment, corresponding forwarding data is transferred to destination node, or the forwarding data of sending from source node is transferred to RN at exclusive data radio bearer, source node now may be DeNB itself or miscellaneous equipment.

On the other hand, in RN side, RN receive that DeNB sends about the configuration information of setting up exclusive data radio bearer, and need the data of forward to destination node to DeNB transmission on this DRB, or receive the forwarding data from source node being forwarded by DeNB on this DRB.

Concrete, can take following two kinds of allocation plans to exclusive data radio bearer on Un interface:

Scheme one, only configure an exclusive data radio bearer

This DRB can be unidirectional uplink/downlink channel or two-way up-downgoing channel, wherein:

When up channel is used for transmitting RN as source node, need to be to all forwarding data of destination node forward;

When down channel is used for transmitting RN as destination node, all forwarding data by source node through transferring before DeNB.

Scheme two, configure multiple exclusive data radio bearers simultaneously

These DRB all can be unidirectional uplink/downlink channel or two-way up-downgoing channel, wherein:

When every up channel is used for transmitting RN as source node, need to be to the specific QCI grade of destination node forward or the forwarding data of certain priority;

When every down channel is used for transmitting RN as destination node, by the specific QCI grade transferring before source node process DeNB or the forwarding data of certain priority.

In concrete application scenarios, multiple exclusive data radio bearers can configure similar and different transmission mode (RLC AM/UM), have different priority and logic channel configuration attribute.

Further, DeNB can take following measures to its priority of DRB and the QCI processing that are specifically designed to transmission forwarding data:

Priority and the QCI of exclusive data radio bearer that is specifically designed to transmission forwarding data is set to higher grade, for example: be made as limit priority or only lower than Un interface SRB and S1 and X2 signaling, but higher than the priority of other normal user data; Or,

Forwarding data DRB, corresponding to a certain specifically higher QCI grade, is processed according to priority and QCI parameter; Or,

According to the needs of concrete application scenarios, the priority of forwarding data DRB is done to dynamic adjustment according to the data priority of transmission.

On the other hand, in the time that there is multiple QCI the data inside that need to transmit on forwarding data DRB, DeNB and RN can be by the sequential delivery time of advent, or carry out from high to low the transmission of forwarding data according to priority orders.

Need to further illustrate, DeNB can take following manner set up, revise and delete to exclusive data radio bearer on Un interface:

Mode one, semi-static configuration, according to the interval life cycle of determining DRB of the life period of Un interface.

After Un interface is enabled, synchronize with X2 for transmitting RN and the DRB of S1 signaling, DeNB completes the process of establishing of the exclusive data radio bearer for transmitting forwarding data immediately, and exclusive data radio bearer existed in the Un interface duration always, can have reprovision modification process.

Need to abandon or RN shutdown when Un interface goes wrong, RN gets back to IDLE state, and the whole DRB of Un interface and SRB must discharge etc. in situation, and DeNB is to carrying out dispose procedure for the exclusive data radio bearer that transmits forwarding data on Un interface.

In such cases, exclusive data radio bearer is enabled and is set up with Un interface, and abandoning and discharge with Un interface.

Mode two, dynamic-configuration, according to the life cycle of the transmission Location of requirement exclusive data radio bearer of forwarding data.

DeNB is according to the demand of the forwarding data between self and RN, and to Un interface, for transmitting, the DRB of forwarding data sets up, amendment and dispose procedure.

In concrete application scenarios, such demand can be that DeNB initiates, also can be that RN initiates, be carrying foundation, amendment and the releasing request that RN can initiatively initiate the above-mentioned exclusive data radio bearer that is exclusively used in transmission forwarding data, to being specifically designed to the operations such as the DRB of transmission forwarding data modifies on Un interface.

Wherein, foundation, amendment and the dispose procedure that DeNB initiates is to pass through the MME(Mobility Management Entity of S11 interface to RN by the P-GW node that is integrated in the RN in DeNB, Mobility Management Entity) request is set up, amendment and discharge exclusive data radio bearer, foundation, amendment and the dispose procedure that RN initiates be RN pass through S1 interface to the MME request of RN set up, amendment and discharge exclusive data radio bearer.The MME of RN receives that the processing procedure after two requests is all similar, initiates the loading establishing process of exclusive data radio bearer to DeNB.

There is above-mentioned explanation to find out, in concrete application scenarios, carrying foundation, amendment and the releasing request of the exclusive data radio bearer that RN initiatively initiates are realized by send corresponding request message to network side, in this process, may also there is the processing procedure of network side to respective request, after processing successfully, the Indication message that network side is set up corresponding exclusive data radio bearer, revise or discharged sends to base station, realizes operation accordingly.

Below, further by following multiple concrete application scenarios, the technical scheme of the embodiment of the present invention is described.

Application scenarios one, 1 of Un interface configuration are specifically designed to the DRB of transmission forwarding data, and this DRB is along with Un interface synchronization is set up and discharges.

In base station side, corresponding processing procedure as shown in Figure 6, is described as follows:

Step S601, enable when Un interface, Un interface related SR B and security configuration complete, or Un interface is when setting up for the DRB of S1 and/or X2 signaling or afterwards, DeNB sets up 1 exclusive data radio bearer that is specifically designed to transmission forwarding data.

This exclusive data radio bearer is the exclusive data radio bearer of the up forwarding data of transmitted in both directions and descending forwarding data, also can be the exclusive data radio bearer of the up forwarding data of one-way transmission, or the exclusive data radio bearer of the descending forwarding data of one-way transmission.

Step S602, DeNB and RN realize forwarding data transmission by this exclusive data radio bearer.

This step comprises two kinds of situations:

Situation one, UE under RN switch, the up-downgoing data that need to be buffered in RN to UE according to configuration are carried out forward to destination node, DeNB receives the forwarding data that RN sends on the exclusive data radio bearer that is specifically designed to transmission forwarding data, and these data are mail to destination node;

Situation two, when there being UE to be switched to RN from other nodes, the up-downgoing data that need to be buffered in source node to UE according to configuration are carried out forward to RN, DeNB first receives the forwarding data from source node, then these data are transferred to RN on the exclusive data radio bearer that is specifically designed to transmission forwarding data.

Step S603, when going wrong, need close or stop Un interface, the SRB on Un interface and when all DRB need to discharge, and DeNB discharges the DRB that is specifically designed to transmission forwarding data.

It should be noted that, under RN normal operation, generally the step S601 that is finished that starts shooting, cyclically perform step the various situations in S602, only have in the time that generation is abnormal and just can carry out step S603, can also comprise at pilot process the process that the exclusive data radio bearer to being specifically designed to data forwarding is modified.In the following examples, be specifically designed in the exclusive data radio bearer situation identical with Un interface life cycle of transmission forwarding data, all meet this explanation.

Corresponding with the situation of above-mentioned base station side, be described as follows in the handling process of RN side:

RN sets up and releasing operation exclusive data radio bearer according to the signaling of DeNB, and according to configuration parameter corresponding operating, after exclusive data radio bearer is set up, the forwarding data of needs transmission is transmitted on exclusive data radio bearer, or receive forwarding data respective handling on exclusive data radio bearer.

In concrete application scenarios, technical descriptioon as the aforementioned, RN also can initiatively initiate to carry foundation, amendment and releasing request, the exclusive data radio bearer that is specifically designed to transmission forwarding data on Un interface is modified, concrete processing procedure, is not repeated to step S503 with reference to aforesaid step S501.

Application scenarios two, 1 of Un interface configuration are specifically designed to the DRB of transmission forwarding data, and whether this DRB is along with having the demand of forwarding data set up and discharge

In base station side, corresponding processing procedure as shown in Figure 7, is described as follows:

Step S701, enable when Un interface, Un interface related SR B and security configuration complete, or Un interface set up for the DRB of S1 and/or X2 signaling, and DeNB and RN enter normal operating state separately.

Step S702, in the time existing forwarding data to send between DeNB and RN, set up exclusive data radio bearer.

This step specifically comprises following two kinds of situations:

Situation one, UE under RN switch, DeNB detects that this handover request received and had the demand of forwarding data by destination node, for example: relevant Handover request ACK message detected, DeNB sets up 1 DRB that is specifically designed to transmission forwarding data on Un interface, this DRB can be two-way, also can be that UM is unidirectional according to the setup of attribute of carrying data, only include a up channel.

Situation two, when there being UE to be switched to RN from other nodes, DeNB detects that this handover request received and had the demand of forwarding data by destination node, relevant Handover request ACK message for example detected, DeNB sets up 1 DRB that is specifically designed to transmission forwarding data on Un interface, and this DRB can only include a down channel.

Step S703, DeNB and RN carry out forwarding data transmission by this exclusive data radio bearer.

Two kinds of situations in corresponding step S702, this step also can be divided into following two kinds of situations:

Situation one, the up-downgoing data that need to be buffered in RN to UE according to configuration are carried out forward to destination node, and DeNB receives the forwarding data that RN sends on the DRB that is specifically designed to transmission forwarding data, and these data are mail to destination node.

Situation two, the up-downgoing data that need to be buffered in source node to UE according to configuration are carried out forward to RN, and DeNB first receives the forwarding data from source node, then these data are transferred to RN on the Un DRB that is specifically designed to transmission forwarding data;

Step S704, when the whole end of transmissions of this forwarding data, Un interface is for the DRB of forwarding data again without follow-up related data transmission, need to discharge time, DeNB transmits forwarding data DRB to being specifically designed to discharges.

Wherein, DeNB is detecting the demand of forwarding data, but now exclusive data radio bearer is set up, special DeNB, without again setting up, directly uses the existing exclusive data radio bearer transmissions for forwarding data or receives forwarding data.In the time that certain UE switches, its whole forwarding data are end of transmission on Un interface, but now also have the forwarding data of other UE on Un interface, to transmit, exclusive data radio bearer can not be deleted, and should ensure that the forwarding data of all UE that need transmit on this Un interface all can normal transmission.Especially, in order to reduce the time delay of data forwarding and handoff as far as possible, DeNB also can proper extension exclusive data radio bearer time to live, for example, in the time that the initial DeNB that switches initiation detects handover request, just set up in advance exclusive data radio bearer, or when DeNB detects that the number of connected state UE under RN and/or motion conditions meet some requirements, think that the probability now switching is very large, also can set up in advance exclusive data radio bearer.

Same, in the time discharging exclusive data radio bearer, also can leave certain surplus, consider the probability height that next data forwarding arrives, although take not have forwarding data to transmit, discharge again after still retaining exclusive data radio bearer a period of time.For example, while can thering is no transfer of data on exclusive data radio bearer, start a timer, when this timer expiry, still do not have data on this DRB, to transmit, discharge this DRB; If before timer expiry, there are again new data to transmit on this DRB, cancel timer, until transfer of data is complete on all this exclusive data radio bearers, again start timer, loop process above.

Explanation in operation and the aforesaid application scenarios one of corresponding RN side is similar, is not repeated.

Application scenarios three, 2 of Un interface configuration are specifically designed to the exclusive data radio bearer of transmission forwarding data, and this exclusive data radio bearer is along with Un interface synchronization is set up and discharges

In base station side, corresponding processing procedure as shown in Figure 8, is described as follows:

Step S801, enable when Un interface, Un interface related SR B and security configuration complete, or Un interface is when setting up for the DRB of S1 and/or X2 signaling or afterwards, DeNB sets up 2 exclusive data radio bearers.

This DRB can comprise each one of up-downgoing channel.These two exclusive data radio bearers can have different priority or QCI, the even configuration such as transmission mode (RLC AM/UM).In configuration signal, also can carry every DRB and be respectively used to carry the information such as the forwarding data of which QCI or priority, also can not mandatory provision, and depend on DeNB and RN algorithm separately.

Step S802, DeNB and RN realize forwarding data transmission by this exclusive data radio bearer.

This step comprises two kinds of situations:

Situation one, UE under RN switch, the up-downgoing data that need to be buffered in RN to UE according to configuration are carried out forward to destination node, DeNB receives the forwarding data that RN sends on the DRB that is specifically designed to transmission forwarding data, and these data are mail to destination node.

Situation two, when there being UE to be switched to RN from other nodes, the up-downgoing data that need to be buffered in source node to UE according to configuration are carried out forward to RN, DeNB first receives the forwarding data from source node, then these data are specifically designed on the Un DRB that transmits forwarding data and are transferred to respectively RN according to not coexisting of priority and QCI grade.

Step S803, when going wrong, need close or stop Un interface, the SRB on Un interface and when all DRB need to discharge, and DeNB discharges the DRB that is specifically designed to transmission forwarding data.

Wherein, DeNB or RN are in the time judging which forwarding data transmits on which bar DRB, the forwarding data that general principle is high priority and high QCI grade transmits on the DRB of high priority, otherwise the forwarding data of low priority and low QCI grade transmits on the DRB of low priority.

Application scenarios four, 9 of Un interface configuration are specifically designed to the DRB of transmission forwarding data, and this DRB is along with Un interface synchronization is set up and discharges.

In base station side, corresponding processing procedure as shown in Figure 9, is described as follows:

Step S901, enable when Un interface, Un interface related SR B and security configuration complete, or Un interface is when setting up for the DRB of S1 and/or X2 signaling or afterwards, DeNB sets up 9 exclusive data radio bearers.

Each DRB can comprise each one of up-downgoing channel.These 9 special DRB are respectively used to transmit the forwarding data of 9 kinds of QCI grades.

Step S902, DeNB and RN realize forwarding data transmission by corresponding exclusive data radio bearer.

This step comprises two kinds of situations:

Step S903, when going wrong, need close or stop Un interface, the SRB on Un interface and when all DRB need to discharge, and DeNB discharges the DRB that is specifically designed to transmission forwarding data.

Wherein, DeNB or RN, in the time judging which forwarding data transmits on which bar DRB, take data and 9 pairs of modes that DRB shines upon one by one of 9 kinds of QCI grades.

Compared with prior art, the present invention has the following advantages:

The technical scheme proposing in order to realize the above-mentioned embodiment of the present invention, the embodiment of the present invention also provides a kind of terminal equipment and a kind of network equipment.

Wherein, the structural representation of a kind of base station that the embodiment of the present invention proposes as shown in figure 10, comprising:

Communication module 101, sets up Indication message and/or the release Indication message of exclusive data radio bearer for what receive exclusive data radio bearer that network equipment sends;

Set up module 102, for receive when communication module 101 exclusive data radio bearer that network equipment sends set up Indication message time, set up and be exclusively used in the one or more exclusive data radio bearer that transmits forwarding data between base station and via node;

Transport module 103, for carrying out the transmission of forwarding data by setting up one or more exclusive data radio bearer and the via node that module 102 sets up;

Release module 104, when receive the releasing request message of exclusive data radio bearer that network equipment sends when communication module 101, discharges one or more exclusive data radio bearer.

Further, also comprise module 105 and judge module 106 be set,

Module 105 is set, for exclusive data radio bearer trigger condition, exclusive data radio bearer release conditions and exclusive data radio bearer modification condition are set;

Judge module 106, for judging whether to reach the set exclusive data radio bearer trigger condition of module 105, exclusive data radio bearer release conditions or the exclusive data radio bearer modification condition of arranging;

Wherein, the set exclusive data radio bearer trigger condition of module 105 is set, specifically comprises that the interface between base station and via node is enabled, or the current forwarding data that exists between base station and via node needs to send;

The set exclusive data radio bearer release conditions of module 105 is set, specifically comprises that interface between base station and via node stops or via node is closed, or base station or via node are determined the current end of transmission of forwarding data that needs transmission;

The set exclusive data radio bearer modification condition of module 105 is set, specifically comprise that the current QoS of base station and relay node judges does not meet current system requirements, or base station or via node are determined the forwarding data of the new needs transmission of current appearance, or the forwarding data transmitting disappears, or base station or via node are determined and currently need to be carried out resource adjustment.

Preferably, what communication module 101 received exclusive data radio bearer that network equipment sends sets up Indication message, is specially:

When judge module 106 judgement reaches when exclusive data radio bearer trigger condition that module 105 arranges or exclusive data radio bearer release conditions are set, communication module 101 sends the releasing request message of setting up request message or exclusive data radio bearer of exclusive data radio bearer to network equipment;

Confirm at network equipment after the releasing request message of setting up request message or exclusive data radio bearer of exclusive data radio bearer, communication module 101 receives the Indication message of setting up of setting up Indication message or exclusive data radio bearer of the exclusive data radio bearer of network equipment transmission.

Preferably,

When setting up while setting up many exclusive data radio bearers that are exclusively used in transmission forwarding data between module 102 and via node, module 105 is set and is also used to many exclusive data radio bearers that are exclusively used in transmission forwarding data that corresponding transmission rule is set, and/or be that many exclusive data radio bearers that are exclusively used in transmission forwarding data configure identical or different transmission mode.

In concrete application scenarios,

When setting up while only setting up an exclusive data radio bearer that is exclusively used in transmission forwarding data between module 102 and via node, transport module 103 is by the whole forwarding data between exclusive data radio bearer transmissions base station and via node; Or,

When setting up while setting up many exclusive data radio bearers that are exclusively used in transmission forwarding data between module 102 and via node, transport module 103 is according to the set transmission rule of module 105 is set, by corresponding forwarding data between corresponding exclusive data radio bearer transmissions base station and via node;

Wherein, exclusive data radio bearer, be specially the exclusive data radio bearer of the up forwarding data of one-way transmission, or the exclusive data radio bearer of the descending forwarding data of one-way transmission, or the exclusive data radio bearer of the up forwarding data of transmitted in both directions and descending forwarding data.

Further, the structural representation of a kind of via node that the embodiment of the present invention proposes as shown in figure 11, comprising:

Communication module 111, for receiving, the exclusive data radio bearer of base station transmission is set up Indication message or exclusive data radio bearer discharges Indication message

Set up module 112, set up Indication message for the exclusive data radio bearer according to base station, set up with base station the one or more exclusive data radio bearer that is exclusively used in transmission forwarding data;

Transport module 113, for carrying out the transmission of forwarding data with base station by the one or more exclusive data radio bearer of setting up module 112 and setting up;

Release module 114, for discharging Indication message according to the exclusive data radio bearer of base station, discharges and sets up the one or more exclusive data radio bearer that module 112 is set up.

Further, also comprise module 115 and judge module 116 be set,

Module 115 is set, for exclusive data radio bearer trigger condition is set, exclusive data radio bearer release conditions and exclusive data radio bearer modification condition;

Judge module 116, for judging whether to reach the set exclusive data radio bearer trigger condition of module 115, exclusive data radio bearer release conditions or the exclusive data radio bearer modification condition of arranging;

Wherein, the set exclusive data radio bearer trigger condition of module 115 is set, specifically comprises that the interface between base station and via node is enabled, or the current forwarding data that exists between base station and via node needs to send;

The set exclusive data radio bearer release conditions of module 115 is set, specifically comprises that interface between base station and via node stops or via node is closed, or base station or via node are determined the current end of transmission of forwarding data that needs transmission;

The set exclusive data radio bearer modification condition of module 115 is set, specifically comprise that the current QoS of base station and relay node judges does not meet current system requirements, or base station or via node are determined the forwarding data of the new needs transmission of current appearance, or the forwarding data transmitting disappears, or base station or via node are determined and currently need to be carried out resource adjustment.

Preferably,

When judge module 116 judgement reaches when exclusive data radio bearer trigger condition that module 115 arranges or exclusive data radio bearer release conditions are set, communication module 111 sends the releasing request message of setting up request message or exclusive data radio bearer of exclusive data radio bearer to network equipment;

Confirm the releasing request message of setting up request message or exclusive data radio bearer of exclusive data radio bearer at network equipment, and send to base station after the release Indication message of setting up Indication message or exclusive data radio bearer of exclusive data radio bearer, communication module 111 receives the Indication message of setting up of setting up Indication message or exclusive data radio bearer of the exclusive data radio bearer of base station transmission.

Preferably,

When setting up while setting up many exclusive data radio bearers that are exclusively used in transmission forwarding data between module 112 and via node, module 115 is set and is also used to many exclusive data radio bearers that are exclusively used in transmission forwarding data that corresponding transmission rule is set, and/or be that many exclusive data radio bearers that are exclusively used in transmission forwarding data configure identical or different transmission mode.

Preferably,

When setting up while only setting up an exclusive data radio bearer that is exclusively used in transmission forwarding data between module 112 and via node, transport module 113 is by the whole forwarding data between exclusive data radio bearer transmissions base station and via node; Or,

When setting up while setting up many exclusive data radio bearers that are exclusively used in transmission forwarding data between module 112 and via node, transport module 113 is according to the set transmission rule of module 115 is set, by corresponding forwarding data between corresponding exclusive data radio bearer transmissions base station and via node;

Compared with prior art, the present invention has the following advantages:

Through the above description of the embodiments, those skilled in the art can be well understood to the present invention and can realize by hardware, and the mode that also can add necessary general hardware platform by software realizes.Based on such understanding, technical scheme of the present invention can embody with the form of software product, it (can be CD-ROM that this software product can be stored in a non-volatile memory medium, USB flash disk, portable hard drive etc.) in, comprise that each implements the method described in scene in order to make a computer equipment (can be personal computer, service end, or the network equipment etc.) carry out the present invention in some instructions.

It will be appreciated by those skilled in the art that accompanying drawing is a schematic diagram of preferably implementing scene, the module in accompanying drawing or flow process might not be that enforcement the present invention is necessary.

It will be appreciated by those skilled in the art that the module in the device of implementing in scene can be distributed in the device of implementing scene according to implementing scene description, also can carry out respective change and be arranged in the one or more devices that are different from this enforcement scene.The module of above-mentioned enforcement scene can be merged into a module, also can further split into multiple submodules.

The invention described above sequence number, just to describing, does not represent the quality of implementing scene.

Disclosed is above only several concrete enforcement scene of the present invention, and still, the present invention is not limited thereto, and the changes that any person skilled in the art can think of all should fall into protection scope of the present invention.

Claims

1. a method of carrying out forwarding data transmission by exclusive data radio bearer, is characterized in that, comprising:

In the time that described base station receives the release Indication message of exclusive data radio bearer of described network equipment transmission, described base station discharges described one or more exclusive data radio bearer;

Wherein, described base station receives the release Indication message of the exclusive data radio bearer of described network equipment transmission, is specially:

In the time that described base station or described relay node judges reach default exclusive data radio bearer release conditions, described base station or described via node send the releasing request message of exclusive data radio bearer to described network equipment;

Confirm at described network equipment after the releasing request message of described exclusive data radio bearer, described base station receives the release Indication message of the exclusive data radio bearer of described network equipment transmission.

2. the method for claim 1, is characterized in that, what described base station received exclusive data radio bearer that network equipment sends sets up Indication message, is specially:

In the time that described base station or described relay node judges reach default exclusive data radio bearer trigger condition, described base station or described via node send the request message of setting up of exclusive data radio bearer to described network equipment;

Confirm setting up after request message of described exclusive data radio bearer at described network equipment, described base station receives the Indication message of setting up of exclusive data radio bearer that described network equipment sends.

3. method as claimed in claim 2, is characterized in that, described default exclusive data radio bearer trigger condition, specifically comprises:

Interface between described base station and described via node is enabled; Or,

The current forwarding data that exists between described base station and described via node needs to send.

4. the method for claim 1, is characterized in that, described base station and described via node carry out the transmission of forwarding data by described one or more exclusive data radio bearer and described via node, are specially:

When between described base station and via node, only set up one be exclusively used in transmission forwarding data exclusive data radio bearer time, described base station and described via node are by the whole forwarding data of described exclusive data radio bearer transmissions; Or,

When between described base station and via node, set up many be exclusively used in transmission forwarding data exclusive data radio bearer time, described base station and described via node are according to default transmission rule, by the corresponding forwarding data of corresponding exclusive data radio bearer transmissions.

5. method as claimed in claim 4, is characterized in that, described exclusive data radio bearer, is specially:

The exclusive data radio bearer of the up forwarding data of one-way transmission; Or,

The exclusive data radio bearer of the descending forwarding data of one-way transmission; Or,

The exclusive data radio bearer of the up forwarding data of transmitted in both directions and descending forwarding data.

6. method as claimed in claim 4, it is characterized in that, when between described base station and via node, set up many be exclusively used in transmission forwarding data exclusive data radio bearer time, described base station and described via node are according to default transmission rule, by the corresponding forwarding data of corresponding exclusive data radio bearer transmissions, be specially:

Described base station is according to the Indication message of network equipment or be directly that described many exclusive data radio bearers that are exclusively used in transmission forwarding data are determined different transmission priorities according to preset strategy, and described base station and described via node have the forwarding data of respective priority by corresponding exclusive data radio bearer transmissions; Or,

Described base station is according to the Indication message of network equipment or be directly that described many exclusive data radio bearers that are exclusively used in transmission forwarding data are determined different QCI grade of transmission according to preset strategy, and described base station and described via node have the forwarding data of corresponding QCI grade by corresponding exclusive data radio bearer transmissions;

Wherein, described base station is that described many exclusive data radio bearers that are exclusively used in transmission forwarding data configure identical or different transmission mode.

7. the method for claim 1, is characterized in that, described default exclusive data radio bearer release conditions, specifically comprises:

Interface between described base station and described via node stops or described via node is closed; Or,

Described base station or described via node are determined the current end of transmission of forwarding data that needs transmission.

8. the method for claim 1, is characterized in that, also comprises:

Described base station receives the amendment Indication message of the exclusive data radio bearer of described network equipment transmission, is specially:

In the time that described base station or described relay node judges reach default exclusive data radio bearer modification condition, described base station or described via node send the modify request messages of exclusive data radio bearer to described network equipment;

Confirm at described network equipment after the modify request messages of described exclusive data radio bearer, described base station receives the amendment Indication message of the exclusive data radio bearer of described network equipment transmission.

9. method as claimed in claim 8, is characterized in that, described default exclusive data radio bearer modification condition, specifically comprises:

The current QoS of described base station and described relay node judges does not meet current system requirements; Or,

Described base station or described via node are determined the forwarding data of the new needs transmission of current appearance, or the current part or all of end of transmission of forwarding data that needs transmission; Or,

Described base station or described via node are determined currently need to carry out resource adjustment.

10. a base station, is characterized in that, comprising:

Release module, when receive the release Indication message of the exclusive data radio bearer that described network equipment sends when described communication module, discharges described one or more exclusive data radio bearer;

Wherein, described base station also comprises: module and judge module are set,

The described module that arranges, for arranging exclusive data radio bearer release conditions;

Described judge module, for judging whether to reach the described set exclusive data radio bearer release conditions of module that arranges;

Described communication module receives the release Indication message of the exclusive data radio bearer of network equipment transmission, is specially:

In the time that described judge module judgement reaches the described exclusive data radio bearer release conditions that module setting is set, described communication module sends the releasing request message of exclusive data radio bearer to described network equipment;

Confirm at described network equipment after the releasing request message of described exclusive data radio bearer, described communication module receives the release Indication message of the exclusive data radio bearer of described network equipment transmission.

11. base stations as claimed in claim 10, is characterized in that,

The described module that arranges, also for arranging exclusive data radio bearer trigger condition and exclusive data radio bearer modification condition;

Described judge module, also for judging whether to reach the described set exclusive data radio bearer trigger condition of module or the exclusive data radio bearer modification condition of arranging;

Wherein, the described set exclusive data radio bearer trigger condition of module that arranges, specifically comprises that the interface between described base station and described via node is enabled, or the current forwarding data that exists between described base station and described via node needs to send;

The described set exclusive data radio bearer release conditions of module that arranges, specifically comprise that interface between described base station and described via node stops or described via node is closed, or described base station or described via node are determined the current end of transmission of forwarding data that needs transmission;

The described set exclusive data radio bearer modification condition of module that arranges, specifically comprise that the current QoS of described base station and described relay node judges does not meet current system requirements, or described base station or described via node are determined the forwarding data of the new needs transmission of current appearance, or the forwarding data transmitting disappears, or described base station or described via node are determined and currently need to be carried out resource adjustment.

12. base stations as claimed in claim 11, is characterized in that, what described communication module received exclusive data radio bearer that network equipment sends sets up Indication message, is specially:

In the time that described judge module judgement reaches the described exclusive data radio bearer trigger condition that module setting is set, described communication module sends the request message of setting up of exclusive data radio bearer to described network equipment;

Confirm setting up after request message of described exclusive data radio bearer at described network equipment, described communication module receives the Indication message of setting up of exclusive data radio bearer that described network equipment sends.

13. base stations as claimed in claim 11, is characterized in that,

Set up while setting up many exclusive data radio bearers that are exclusively used in transmission forwarding data between module and via node when described, the described module that arranges is also used to described many exclusive data radio bearers that are exclusively used in transmission forwarding data that corresponding transmission rule is set, and/or is that described many exclusive data radio bearers that are exclusively used in transmission forwarding data configure identical or different transmission mode.

14. base stations as claimed in claim 10, is characterized in that,

Set up while only setting up an exclusive data radio bearer that is exclusively used in transmission forwarding data between module and via node when described, described transport module is by the whole forwarding data between base station described in described exclusive data radio bearer transmissions and described via node; Or,

Set up while setting up many exclusive data radio bearers that are exclusively used in transmission forwarding data between module and via node when described, described transport module is according to the described set transmission rule of module that arranges, by corresponding forwarding data between base station described in corresponding exclusive data radio bearer transmissions and described via node;

Wherein, described exclusive data radio bearer, be specially the exclusive data radio bearer of the up forwarding data of one-way transmission, or the exclusive data radio bearer of the descending forwarding data of one-way transmission, or the exclusive data radio bearer of the up forwarding data of transmitted in both directions and descending forwarding data.

15. 1 kinds are carried out the method for forwarding data transmission by exclusive data radio bearer, it is characterized in that, comprising:

Described via node discharges Indication message according to the exclusive data radio bearer of described base station, discharges described one or more exclusive data radio bearer;

Wherein, described via node discharges Indication message according to the exclusive data radio bearer of described base station, before discharging described one or more exclusive data radio bearer, also comprises:

In the time that described relay node judges reaches default exclusive data radio bearer release conditions, send exclusive data radio bearer releasing request message to network side, make described base station send exclusive data radio bearer and discharge Indication message.

16. methods as claimed in claim 15, it is characterized in that, described via node is set up Indication message according to the exclusive data radio bearer of base station, before setting up the one or more exclusive data radio bearer that is exclusively used in transmission forwarding data, also comprises with described base station:

In the time that described relay node judges reaches default exclusive data radio bearer trigger condition, send exclusive data radio bearer to network side and set up request message, make described base station send exclusive data radio bearer and set up Indication message.

17. methods as claimed in claim 16, is characterized in that, described default exclusive data radio bearer trigger condition, specifically comprises:

Interface between described via node and described base-station node is enabled; Or,

18. methods as claimed in claim 15, is characterized in that, the transmission of forwarding data is carried out by described one or more exclusive data radio bearer in described via node and described base station, is specially:

When between described via node and described base station, only set up one be exclusively used in transmission forwarding data exclusive data radio bearer time, described via node and described base station are by the whole forwarding data of described exclusive data radio bearer transmissions; Or,

When between described via node and described base station, set up many be exclusively used in transmission forwarding data exclusive data radio bearer time, described via node and described base station are according to default transmission rule, by the corresponding forwarding data of corresponding exclusive data radio bearer transmissions.

19. methods as claimed in claim 18, is characterized in that, described exclusive data radio bearer, is specially:

20. methods as claimed in claim 18, it is characterized in that, when between described via node and described base station, set up many be exclusively used in transmission forwarding data exclusive data radio bearer time, described via node is according to default transmission rule, by corresponding forwarding data between base station described in corresponding exclusive data radio bearer transmissions and described via node, be specially:

Described base station is that described many exclusive data radio bearers that are exclusively used in transmission forwarding data configure different transmission priorities, and described via node and described base station have the forwarding data of respective priority by corresponding exclusive data radio bearer and described base-station transmission; Or,

Described base station is that described many exclusive data radio bearers that are exclusively used in transmission forwarding data configure different QCI grade of transmission, and described via node and described base station have the forwarding data of corresponding QCI grade by corresponding exclusive data radio bearer transmissions;

Wherein, described base station is also for described many exclusive data radio bearers that are exclusively used in transmission forwarding data configure identical or different transmission mode.

21. methods as claimed in claim 15, is characterized in that, described default exclusive data radio bearer release conditions, specifically comprises:

22. methods as claimed in claim 15, is characterized in that, also comprise:

In the time that described relay node judges reaches default exclusive data radio bearer modification condition, send exclusive data radio bearer modification request message to network side, make described base station send exclusive data radio bearer modification Indication message.

23. methods as claimed in claim 22, is characterized in that, described default exclusive data radio bearer modification condition, specifically comprises:

Described base station or described via node are determined the forwarding data of the new needs transmission of current appearance, or the forwarding data transmitting disappears; Or,

24. 1 kinds of via nodes, is characterized in that, comprising:

Communication module, for receiving, the exclusive data radio bearer of base station transmission is set up Indication message or exclusive data radio bearer discharges Indication message;

Transport module, for being set up the one or more exclusive data radio bearer that module sets up and carried out the transmission of forwarding data by described with described base station;

Release module, for discharging Indication message according to the exclusive data radio bearer of described base station, discharges the described one or more exclusive data radio bearer that module is set up of setting up;

Wherein, described via node also comprises: module and judge module are set,

In the time that described judge module judgement reaches the described exclusive data radio bearer release conditions that module setting is set, described communication module sends the releasing request message of exclusive data radio bearer to network equipment;

Confirm the releasing request message of described exclusive data radio bearer at described network equipment, and send to described base station after the release Indication message of exclusive data radio bearer, described communication module receives the release Indication message of the exclusive data radio bearer of described base station transmission.

25. via nodes as claimed in claim 24, is characterized in that,

The described module that arranges, for arranging exclusive data radio bearer trigger condition and exclusive data radio bearer modification condition;

Described judge module, for judging whether to reach the described set exclusive data radio bearer trigger condition of module or the exclusive data radio bearer modification condition of arranging;

26. via nodes as claimed in claim 25, is characterized in that,

In the time that described judge module judgement reaches the described exclusive data radio bearer trigger condition that module setting is set, described communication module sends the request message of setting up of exclusive data radio bearer to network equipment;

Confirm the request message of setting up of described exclusive data radio bearer at described network equipment, and sending the setting up after Indication message of exclusive data radio bearer to described base station, described communication module receives the Indication message of setting up of exclusive data radio bearer that described base station sends.

27. via nodes as claimed in claim 25, is characterized in that,

Set up while setting up many exclusive data radio bearers that are exclusively used in transmission forwarding data between module and base station when described, the described module that arranges is also used to described many exclusive data radio bearers that are exclusively used in transmission forwarding data that corresponding transmission rule is set, and/or is that described many exclusive data radio bearers that are exclusively used in transmission forwarding data configure identical or different transmission mode.

28. via nodes as claimed in claim 24, is characterized in that,

Set up while only setting up an exclusive data radio bearer that is exclusively used in transmission forwarding data between module and base station when described, described transport module is by the whole forwarding data between base station described in described exclusive data radio bearer transmissions and described via node; Or,

Set up while setting up many exclusive data radio bearers that are exclusively used in transmission forwarding data between module and base station when described, described transport module is according to the described set transmission rule of module that arranges, by corresponding forwarding data between base station described in corresponding exclusive data radio bearer transmissions and described via node;