CN102149147A - Update method of radio bearer and relay station - Google Patents
Update method of radio bearer and relay station Download PDFInfo
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- CN102149147A CN102149147A CN2010101058196A CN201010105819A CN102149147A CN 102149147 A CN102149147 A CN 102149147A CN 2010101058196 A CN2010101058196 A CN 2010101058196A CN 201010105819 A CN201010105819 A CN 201010105819A CN 102149147 A CN102149147 A CN 102149147A
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Abstract
The embodiment of the invention discloses an updating method of a radio bearer and a relay station, relating to the technical field of communications and being used for improving the use ratio of air-interface resources. The method comprises the following steps: acquiring a first bearing message of user equipment (UE), wherein the first bearing message refers to the service quality of the radio bearer to be switched of the UE; when the service quality of radio bearing resources on a Un interface does not meet the switching requirements of the bearer of the UE, determining the requirements of the UE on the service quality of the radio bearing resources on the U interface in accordance with the first bearing message; and sending a bearing resource modification request to a core network, wherein the request carries the requirements of the UE on the service quality of the radio bearing resources on the Un interface, so that a donor base station can update the radio bearer on the Un interface in accordance with the requirements of the service quality. The updating method and the relay station in the embodiment of the invention are mainly applied to occasions in which relays exist.
Description
Technical field
The present invention relates to communication technical field, relate in particular to a kind of update method and relay station of radio bearer.
Background technology
In order to improve the wireless signal covering quality in cell edge heat-transmission point area, at senior long-term evolving network (Long Term Evolved-Advanced, LTE-A) introduced wireless relay (Relay) technology in the system, corresponding relay equipment is called via node (Relay Node, RN) or relay station (RelayStation, RS).Relay station communicates by air interface and base station, and is responsible for the wireless signal that the base station sends being done the one or many signal processing or directly transmitting, up to wireless signal be sent to subscriber equipment (User Equipment, UE).After having introduced relaying technique, the base station can be called as donor base station (DonorE-UTRAN Node B, DeNB).Wherein, the interface between relay station and the UE is the Uu interface, and the interface between relay station and the donor base station is the Un interface.
The grouping system of existing evolution (Evolved Packet System, EPS) in, when UE when source base station switches to target BS, source base station can send handoff request message to target BS.And target BS can need carry out being carried on of data forwarding for each and set up data forwarding GPRS tunnel protocol (GPRS Tunnel Protocol, GTP) tunnel between source base station and the target BS after receiving this handoff request message.After receiving the switching request acknowledgement message that is sent by source base station, this data forwarding tunnel is set up and is finished.After introducing relaying technique, when UE switched between RN and ordinary base station, the data forwarding between RN and the ordinary base station need be through the Un interface between them.
The inventor finds in realizing process of the present invention, in handoff procedure, prior art does not also have QoS (the Quality of Serivce for radio bearer resources on the Un interface, service quality) solution of upgrading, make that the radio bearer resources of the radio bearer resources of distributing on the Un interface and handoff procedure needs is incompatible, thereby caused to occur the waste of Un interface wireless bearing resource or transmitted the situation of loss of data, reduced the utilance of interface-free resources.
Summary of the invention
The embodiment of the invention provides a kind of update method and relay station of radio bearer, improves the utilance of interface-free resources.
The embodiment of the invention provides a kind of update method of radio bearer, comprises;
Obtain first beared information of subscriber equipment, described first beared information is the service quality of the to be switched radio bearer of described subscriber equipment;
The carrying that can not satisfy described subscriber equipment when the service quality of the radio bearer resources on the Un interface is switched when requiring, and determines the requirement of described subscriber equipment to the service quality of the radio bearer resources on the Un interface according to described first beared information;
Send bearing resource to affiliated core net and revise request, in described request, carry of the requirement of described subscriber equipment, make donor base station can be updated in the radio bearer on the described Un interface according to the requirement of described service quality to the service quality of the radio bearer resources on the Un interface.
The embodiment of the invention provides a kind of relay station, comprising:
Information acquisition unit is used to obtain the requirement of first beared information of subscriber equipment according to described service quality, and described first beared information is the service quality of the to be switched radio bearer of described subscriber equipment;
The demand acquiring unit, be used for the carrying that service quality when the radio bearer resources on the Un interface can not satisfy described subscriber equipment and switch when requiring, determine of the requirement of described subscriber equipment the service quality of the radio bearer resources on the Un interface according to described first beared information;
The resource updates unit, be used for sending bearing resource and revise request to affiliated core net, in described request, carry of the requirement of described subscriber equipment, make donor base station can be updated in the radio bearer on the described Un interface according to the requirement of described service quality to the service quality of the radio bearer resources on the Un interface.
The update method of the described radio bearer of the embodiment of the invention and relay station, under the scene of relay station, when the service quality of the radio bearer resources on the Un interface can not satisfy requiring of described subscriber equipment, can upgrade the radio bearer on the described Un interface the requirement of the radio bearer resources on the Un interface according to the subscriber equipment that redefines, thereby avoided in the prior art having improved the control efficiency of resource owing to upgrading the wasting of resources that causes or the situation of loss of data to the radio bearer resources of Un interface.
Description of drawings
The flow chart of a kind of radio bearer resources method for updating that Fig. 1 provides for the embodiment of the invention;
The flow chart of another radio bearer resources method for updating that Fig. 2 provides for the embodiment of the invention;
The flow chart of another radio bearer resources method for updating that Fig. 3 provides for the embodiment of the invention;
The flow chart of another radio bearer resources method for updating that Fig. 4 provides for the embodiment of the invention;
The flow chart of another radio bearer resources method for updating that Fig. 5 provides for the embodiment of the invention;
The schematic diagram of a kind of relay station that Fig. 6 provides for the embodiment of the invention;
The schematic diagram of another relay station that Fig. 7 provides for the embodiment of the invention;
The structure chart of another relay station that Fig. 8 provides for the embodiment of the invention;
The schematic diagram of another relay station that Fig. 9 provides for the embodiment of the invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the invention, the technical scheme in the embodiment of the invention is clearly and completely described, obviously, described embodiment only is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills belong to the scope of protection of the invention not making the every other embodiment that is obtained under the creative work prerequisite.
The embodiment of the invention provides a kind of update method of radio bearer, as shown in Figure 1, comprising:
Step 11, relay station obtain first beared information of subscriber equipment, and described first beared information is the service quality of the to be switched radio bearer of described subscriber equipment.
In embodiments of the present invention, radio bearer can be done following classification: radio bearer that can switch and the radio bearer that can not switch wherein comprise the radio bearer that only can switch again and can switch the radio bearer that the line data of going forward side by side is transmitted in the radio bearer that can switch.Wherein, the described radio bearer that can switch again can be according to different application scenarioss as to be switched radio bearer.
Wherein, described first beared information can comprise the service quality that can switch the radio bearer that the line data of going forward side by side transmits, perhaps comprises the service quality of the service quality that can switch the radio bearer that the line data of going forward side by side transmits and the radio bearer that only can switch.
Step 12, the carrying that can not satisfy described subscriber equipment when the service quality of the radio bearer resources on the Un interface are switched when requiring, and described relay station is determined the requirement of described subscriber equipment to the service quality of the radio bearer resources on the Un interface according to described first beared information.
In embodiments of the present invention, according to different Relay application scenarioss, determine that can the service quality of the radio bearer resources on the described Un interface satisfy the mode difference of the requirement of described subscriber equipment.
For example, when subscriber equipment switches between relay station and target BS, can be to guarantee bit rate (Guaranteed BitRate according to the radio bearer of determining by described target BS that can switch the line data forwarding of going forward side by side, GBR) radio bearer and its up code check determine that less than descending code check the service quality of the radio bearer resources on the described Un interface can not satisfy the requirement of described subscriber equipment.Otherwise, when can switching of determining of the described target BS radio bearer that the line data of going forward side by side transmits is that can switching of determining of non-GBR radio bearer or the described target BS radio bearer that the line data of going forward side by side transmits is GBR radio bearer but its up code check during greater than descending code check, determine that the service quality of the radio bearer resources on the described Un interface can satisfy the requirement of described subscriber equipment.
When the radio bearer resources on the Un interface can not satisfy requiring of subscriber equipment, can determine the requirement of service quality of the up code check of described Un interface according to the described requirement that can switch the downlink data service quality of the radio bearer that the line data of going forward side by side transmits, redefine of the new requirement of described subscriber equipment to the radio bearer of Un interface, for example, the described descending code check that can switch the radio bearer of the line data forwarding of going forward side by side can be defined as the service quality of the up code check of described Un interface.
Again for example, when described subscriber equipment switches between source base station and relay station, can comprise that at least one guarantees the bit rate radio bearer, determines that the service quality of the radio bearer resources on the described Un interface can not satisfy the requirement of described subscriber equipment according to the radio bearer that can switch that described relay station is determined.Otherwise, when can switching of determining of the described target BS radio bearer that the line data of going forward side by side transmits is non-GBR radio bearer, determine that the service quality of the radio bearer resources on the described Un interface can satisfy the requirement of described subscriber equipment.
When the radio bearer resources on the Un interface can not satisfy requiring of subscriber equipment, can redefine of the new requirement of described subscriber equipment according to the quality of service requirement and the described quality of service requirement that can switch the line data forwarding of going forward side by side of the described radio bearer that can switch to the radio bearer of Un interface.For example, can with described radio bearer that can switch and the described assurance code check that can switch the radio bearer that the line data of going forward side by side transmits and as the assurance code check on the described Un interface.
And in embodiments of the present invention, subscriber equipment (User Equipment, UE) to service quality (the Quality of Service of radio bearer resources on the Un interface, QoS) requirement, can determine according to the described requirement that can switch the descending rate services quality of the radio bearer that the line data of going forward side by side transmits, perhaps can also and describedly can switch the quality of service requirement that the line data of going forward side by side transmits and determine according to the quality of service requirement of the described radio bearer that can switch.
Step 13, described relay station send bearing resource to affiliated core net and revise request, in described request, carry of the requirement of described subscriber equipment, make donor base station can be updated in the radio bearer on the described Un interface the service quality of the radio bearer resources on the Un interface.
Wherein, affiliated core net refers to the affiliated core net of described relay station.In concrete the application, described relay station mainly be with affiliated core net in gateway SGW (Serving Gateway, gateway)/PGW (Packet Gateway, packet gateway) communicate.
By as can be seen above, exist under the scene of relay station, utilize the method for the embodiment of the invention, when the service quality of the radio bearer resources on the Un interface can not satisfy requiring of described subscriber equipment, can upgrade the radio bearer on the described Un interface the requirement of the radio bearer resources on the Un interface according to the subscriber equipment that redefines, thereby avoided in the prior art having improved the control efficiency of resource owing to upgrading the wasting of resources that causes or the situation of loss of data to the radio bearer resources of Un interface.
In addition, in above-mentioned steps 12, when relay station is determined described subscriber equipment to the requiring of the service quality of the radio bearer resources on the Un interface according to described first beared information, also can be the radio bearer that is used to transmit data on the described Un interface assigns than higher distribution and keeps priority (Allocation andRetention Priority, ARP), and described ARP be carried at described bearing resource revise in the request, when making the radio bearer of described donor base station on upgrading described Un interface according to the preferential radio bearer resources that guarantees to be used on the described Un interface data forwarding of described ARP.Perhaps, can also send an indication, indicate described core net priority allocation bearing resource by relay station core net under it.
Describing subscriber equipment under different handoff scenario below in conjunction with different embodiment, is the renewal that how to realize the radio bearer on the Un interface.Wherein, what embodiment shown in Figure 2 and embodiment shown in Figure 3 described is the scape that the switching place of subscriber equipment between relay station and target BS shows, what embodiment shown in Figure 4 and embodiment shown in Figure 5 described is the handoff scenario of subscriber equipment between source base station and relay station.
As shown in Figure 2, the update method of the radio bearer of further embodiment of this invention comprises the steps:
Step 21, UE carry the metrical information of UE to neighbor cell to the relay station reporting measurement reports in described measurement report.
Step 22, described relay station are according to the metrical information in the described measurement report, decision is initiated to switch to target BS, the gateway (SGW/PGW) of core net sends handoff request message (Handover Request) to described target BS under donor base station (DeNB), relay station, and, in described message, carry the information of the radio bearer that needs switching and the information that the radio bearer of the line data forwarding of going forward side by side is switched in the suggestion of described relay station.
Step 23, described target BS are determined and can be switched which radio bearer according to its other resources situation.For the radio bearer that can switch,, then, this radio bearer transmits Tunnel End Point Identifier for distributing if described target BS allows it is carried out data forwarding.
Step 24, described target BS are according to path opposite in the step 22, promptly the gateway of core net, donor base station send switching request acknowledgement message (Handover RequestACK) to described relay station under relay station, in described message, comprise and to switch but can not carry out the sign of the radio bearer of data forwarding, the forwarding Tunnel End Point Identifier that can switch the sign of the radio bearer that the line data of going forward side by side transmits and distribute for described radio bearer.
Step 25, described relay station are according to the switching request acknowledgement message of receiving, obtain the sign of the radio bearer that can switch the line data forwarding of going forward side by side, and search the radio bearer of storage and the corresponding relation of qos requirement according to its sign, obtain the qos requirement of this radio bearer.At this, the described radio bearer that can switch the line data forwarding of going forward side by side can be described as to be switched radio bearer.
Step 26, described relay station determine that can the QoS of the radio bearer on the Un interface satisfy the requirement of the QoS of data forwarding.
Concrete determination methods can be, can to switch radio bearer that the line data of going forward side by side transmits be that can switching of determining of non-GBR carrying or the described target BS radio bearer that the line data of going forward side by side transmits is GBR radio bearer but its up code check during greater than descending code check when described, and the QoS of the radio bearer on the Un interface can meet the demands.At this moment, flow process finishes.
When switching radio bearer that the line data of going forward side by side transmits is GBR radio bearer and its up code check during less than descending code check, and the radio bearer QoS on the Un interface can not meet the demands.When the radio bearer QoS on the Un interface can not meet the demands, relay station redefined the requirement of QoS of the radio bearer of Un interface according to switching beared information that the line data of going forward side by side transmits.In concrete the application, can determine the requirement of service quality of the up code check of described Un interface according to the described requirement that can switch the descending rate services quality of the radio bearer that the line data of going forward side by side transmits.Perhaps also can adopt other modes.
In addition, also can be the radio bearer that is used to transmit data on the described Un interface and assign, make the preferential radio bearer resources that guarantees to be used for data forwarding on described Un interface than higher ARP.Execution in step 27 then.
Mobile management entity (the Mobility ManagementEntity of step 27, described relay station core net under it, MME) gateway of core net (SGW/PGW) sends bearing resource and revises request under it, carries the described requirement that can switch the radio bearer of the line data forwarding of going forward side by side to the QoS of the radio bearer of Un interface that redefines in this request.Then, determine whether to allow the requirement to QoS of described relay station transmission by described gateway.
Step 28, if allow, then described gateway sends the resource modifying request by described MME to donor base station (DeNB), described donor base station is revised radio bearer current on the Un interface with increase QoS or rebulid new radio bearer according to described request.Otherwise flow process finishes.
So far, finished the radio bearer resources renewal process of UE before the switching that switches to target BS by relay station.By said process, can make the QoS of the radio bearer on the Un interface and the qos requirement that can switch the radio bearer that the line data of going forward side by side transmits adapt, thereby improve the utilance of interface-free resources.
As shown in Figure 3, the update method of the radio bearer of further embodiment of this invention can comprise the steps:
Step 301-308, identical with step 21-28 among the embodiment shown in Figure 2.
Step 39, described relay station send switching command message to UE, comprise the configuration information of described target BS in described message.At the same time, can carry out to switch the data forwarding of the radio bearer that line data transmits of going forward side by side.
Step 310, described UE carry out radio configuration according to described switching command message, and send handoff completion message to described target BS.
Step 311, described target BS are initiated the path switching flow, and the downlink data path of the gateway (SGW) of described UE is switched to target BS.
After step 312, path switching were finished, the gateway (SGW/PGW) of described target BS core net under relay station, donor base station sent the customer equipment context release message to relay station.
Step 313, described relay station judge whether the radio bearer QoS on the described Un interface needs to upgrade after receiving described message.
Concrete method can be: if the Data-carrying of described UE all is non-GBR radio bearer, then the radio bearer on the Un interface need not upgrade.If the Data-carrying of described UE comprises one or more GBR radio bearers, then need the radio bearer on the Un interface is upgraded.At this moment, described relay station can be according to the mode in the step 28, and the gateway of core net sends the resource modifying request under it.Then, described gateway sends this request to donor base station again,, comprise the up-downgoing data of UE and transmit the shared radio bearer resources of data to reduce QoS or discharge the radio bearer resources that this UE takies on the Un interface by the radio bearer on the described donor base station modification Un receiving port.
Perhaps, after the data forwarding of step 309 is finished, for saving interface-free resources, relay station can at first ask donor base station to discharge this UE radio bearer resources that user data is transmitted on the Un interface after the data forwarding buffering area is empty or is sending end marker packet.Then in step 313, after receiving the customer equipment context release message, what the request donor base station discharged UE is used for the shared radio bearer resources of up-downgoing transfer of data.And the data forwarding deadline can be before step 310,311,312, any one step of 313 or afterwards.Wherein, the mode of the radio bearer resources on the request donor base station release Un interface is identical with the process of description in the step 27.
So far, finished the renewal process of the radio bearer of UE in the whole handoff procedure that switches to target BS by relay station.By said process, can make the QoS of the radio bearer on the Un interface and the qos requirement that can switch the radio bearer that the line data of going forward side by side transmits adapt, thereby improve the utilance of interface-free resources, and can further save interface-free resources.
As shown in Figure 4, the update method of the radio bearer of further embodiment of this invention comprises the steps:
Step 41, UE carry the metrical information of UE to neighbor cell to the source base station reporting measurement reports in described measurement report.
Step 42, described source base station are according to the metrical information in the described measurement report, decision is initiated to switch to relay station, the gateway of core net (SGW/PGW), donor base station (DeNB) send handoff request message (Handover Request) to described relay station under relay station, and, in described message, carry the information of the radio bearer that needs switching and the information that the radio bearer of the line data forwarding of going forward side by side is switched in the suggestion of described source base station.Described beared information comprises bearing identification and bearer quality of service information etc.
Step 43, described relay station are determined and can be switched which radio bearer according to its other resources situation, promptly determine the radio bearer that only can switch and can switch the radio bearer that the line data of going forward side by side is transmitted.At this, radio bearer that only can switch and the radio bearer that can switch the line data forwarding of going forward side by side are referred to as to be switched radio bearer.For the radio bearer that can switch,, then, this radio bearer transmits Tunnel End Point Identifier for distributing if described relay station allows it is carried out data forwarding.
The QoS of the radio bearer that step 44, described relay station basis only can be switched and the described QoS that can switch the radio bearer of the line data forwarding of going forward side by side judge that can the radio bearer QoS on the Un interface satisfy the requirement of switching radio bearer and forwarding data.
Concrete determination methods can be: if to be switched radio bearer (comprise the radio bearer that only can switch and can switch the radio bearer that the line data of going forward side by side is transmitted) right and wrong GBR radio bearer all, the radio bearer QoS on the Un interface can satisfy the requirement of switching radio bearer and forwarding data so.At this moment, flow process finishes.If to be switched radio bearer comprises one or more GBR radio bearer, the radio bearer QoS on the Un interface can not satisfy the requirement of switching radio bearer and transmitting data so.
When the radio bearer QoS on the Un interface can not meet the demands, according to the radio bearer information that only can switch and can switch the requirement of QoS that radio bearer information that the line data of going forward side by side transmits redefines the radio bearer of Un interface.In detailed process, can according to the assurance code check of the described radio bearer that only can switch and the described assurance code check addition that can switch the radio bearer that the line data of going forward side by side transmits and determine of the requirement of described subscriber equipment to the service quality of the radio bearer resources on the Un interface.
In addition, also can be the radio bearer that is used to transmit data on the described Un interface and assign, make the preferential radio bearer resources that guarantees to be used for data forwarding on described Un interface than higher ARP.Execution in step 45 then.
The mobile management entity of step 45, described relay station core net under it, send bearing resource to gateway (SGW/PGW) and revise request, in this request, carry the described requirement that can switch the radio bearer of the line data forwarding of going forward side by side to the QoS of the radio bearer of Un interface that redefines.Described gateway determines whether to allow the requirement of the QoS that described relay station sends.
Step 46, if allow, then described gateway sends the resource modifying request by described MME to donor base station (DeNB), described donor base station is revised radio bearer current on the Un interface to increase QoS or to rebulid new radio bearer, execution in step 47 according to described request.Otherwise flow process finishes.
Step 47, described relay station promptly send switching request acknowledgement message (Handover Request ACK) through the gateway of donor base station, affiliated core net to described source base station according to path opposite in the step 42, the sign that in described message, comprises the radio bearer that can switch, the forwarding Tunnel End Point Identifier that can switch the sign of the radio bearer that the line data of going forward side by side transmits and distribute for described radio bearer.
So far, finished the renewal process of the radio bearer of UE before the switching that switches to relay station by source base station.By said process, can make the QoS of the radio bearer on the Un interface and the qos requirement that can switch the radio bearer that the line data of going forward side by side transmits adapt, thereby improve the utilance of interface-free resources.
As shown in Figure 5, the update method of the radio bearer of further embodiment of this invention can comprise the steps:
Step 501-507, identical with the step 41-47 of embodiment shown in Figure 4.
Step 508, described source base station send switching command message to UE, comprise the configuration information of described relay station in described message.At the same time, described source base station can be in the forwarding of the enterprising line data in forwarding tunnel that distributes.
Step 509, after data forwarding is finished, relay station can discharge this UE is used for data forwarding on the Un interface radio bearer resources according to the mode request donor base station in the step 45 after receiving the end marker packet that source base station sends.
Step 510, described UE carry out radio configuration according to described switching command message, and send handoff completion message to described relay station.
Step 511, relay station are initiated the path switching flow, and the downlink data path of the gateway (SGW/PGW) of described UE is switched to relay station.
After step 512, path switching were finished, the gateway (SGW/PGW) of described relay station core net under donor base station, relay station sent the customer equipment context release message to source base station.
So far, finished the renewal process of UE at the radio bearer of the whole switching that switches to relay station by source base station.By said process, can make the QoS of the radio bearer on the Un interface and the qos requirement that can switch the radio bearer that the line data of going forward side by side transmits adapt, thereby improve the utilance of interface-free resources.
Simultaneously, in the flow process of the invention described above embodiment, it is directly mutual between source base station and target BS switching message.And, also can use the described method of the embodiment of the invention in the S1 flow process, different is that in the S1 flow process, it is mutual between source base station, MME and target BS three switching message.
One of ordinary skill in the art will appreciate that all or part of flow process that realizes in the foregoing description method, be to instruct relevant hardware to finish by computer program, described program can be stored in the computer read/write memory medium, this program can comprise the flow process as the embodiment of above-mentioned each side method when carrying out.Wherein, described storage medium can be magnetic disc, CD, read-only storage memory body (Read-Only Memory, ROM) or at random store memory body (Random Access Memory, RAM) etc.
In addition, as shown in Figure 6, the embodiment of the invention also provides a kind of relay station, comprising: information acquisition unit 61, be used to obtain first beared information of subscriber equipment, and described first beared information is the service quality of the to be switched radio bearer of described subscriber equipment; Demand acquiring unit 62, be used for the carrying that service quality when the radio bearer resources on the Un interface can not satisfy described subscriber equipment and switch when requiring, determine of the requirement of described subscriber equipment the service quality of the radio bearer resources on the Un interface according to described first beared information; Resource updates unit 63, the service quality of the radio bearer on the described Un interface is used for when can not satisfy requiring of described subscriber equipment, send bearing resource to affiliated core net and revise request, in described request, carry of the requirement of described subscriber equipment, make donor base station can be updated in the radio bearer on the described Un interface according to the requirement of described service quality to the service quality of the radio bearer resources on the Un interface.
Exist under the scene of relay station, utilize the relay station of the embodiment of the invention, when the service quality of the radio bearer resources on the Un interface can not satisfy requiring of described subscriber equipment, can upgrade the radio bearer on the described Un interface the requirement of the radio bearer resources on the Un interface according to the subscriber equipment that redefines, thereby avoided in the prior art having improved the control efficiency of resource owing to upgrading the wasting of resources that causes or the situation of loss of data to the radio bearer resources of Un interface.
As shown in Figure 7, when UE switched to target BS by relay station, described to be switched radio bearer was for switching the radio bearer that the line data of going forward side by side is transmitted.On relay station basis shown in Figure 6, in the relay station of further embodiment of this invention, described information acquisition unit 61 comprises: the first message sink module, be used to receive the switching request acknowledgement message that sends from described target BS, comprise in described switching request acknowledgement message that wherein described target BS confirms to switch the sign of the radio bearer that line data transmits of going forward side by side; The first demand acquisition module is used for according to described sign, obtains the described requirement that can switch the service quality of the radio bearer that the line data of going forward side by side transmits.
At this moment, described demand acquiring unit concrete 62 comprises: first judge module is used to judge that can the service quality of the radio bearer resources on the described Un interface satisfy the requirement of described subscriber equipment; The first demand determination module, be used for when the service quality of the radio bearer resources on the described Un interface can not satisfy requiring of described subscriber equipment, determine the requirement of service quality of the up code check of described Un interface according to the requirement of the service quality of the described descending code check that can switch the radio bearer that the line data of going forward side by side transmits.
But the wherein description among the determination methods reference method embodiment of first judge module.
In addition, in order further to save interface-free resources, as shown in Figure 7, the relay station of further embodiment of this invention also can comprise: data forwarding unit 65 is used to transmit the described data that can switch the radio bearer of the line data forwarding of going forward side by side; The first resource releasing unit 66 is used for discharging the radio bearer resources that is used to transmit described data on the described Un interface when described forwarding of data is finished; The second resource releasing unit 67 is used for discharging the radio bearer resources that is used for described subscriber equipment up-downgoing transfer of data on the described Un interface according to the customer equipment context release message that receives.
Perhaps, as shown in Figure 8, the relay station of further embodiment of this invention also can comprise: message sink unit 68 is used to receive the customer equipment context release message of described target BS; Information resources releasing unit 69 is used for according to the customer equipment context release message that receives, and discharges the radio bearer resources that is used to transmit the radio bearer resources of described data on the described Un interface and is used for described subscriber equipment up-downgoing transfer of data.
As shown in Figure 9, when UE switched to target BS by relay station, described to be switched radio bearer comprises can switch the go forward side by side radio bearer of line data forwarding and the radio bearer that only can switch.On relay station basis shown in Figure 6, in the relay station of further embodiment of this invention, described information acquisition unit 61 comprises: first acquisition module, be used to receive the handoff request message that described source base station sends, obtain the information that described source base station is proposed the service quality of the sign of the radio bearer that switches and described carrying; Second acquisition module, be used for according to described handoff request message and own resource situation, determine the radio bearer only can switch and can switch the radio bearer that the line data of going forward side by side is transmitted, and the information that obtains the described radio bearer that only can switch and can switch the service quality of the radio bearer that the line data of going forward side by side transmits.
Described demand acquiring unit 62 second judge modules are used to judge that the service quality of the radio bearer on the described Un interface can not satisfy the requirement of described subscriber equipment; The second demand determination module, be used for when the service quality of the radio bearer resources on the described Un interface can not satisfy requiring of described subscriber equipment, according to the assurance code check of the described radio bearer that only can switch and the described assurance code check addition that can switch the radio bearer that the line data of going forward side by side transmits and determine of the requirement of described subscriber equipment to the service quality of the radio bearer resources on the Un interface.
But the wherein description among the determination methods reference method embodiment of first judge module.
In addition, in further embodiment of this invention, described relay station also can comprise: Data Receiving unit 71 is used for receiving the forwarding data; The 4th resource releasing unit 72 is used for after described forwarding of data is finished, and discharges the radio bearer resources that is used to transmit described data on the described Un interface.
In addition, in the embodiment of above-mentioned relay station, described demand acquiring unit 62 also can be and is used to transmit the radio bearer appointment of data on the described Un interface than higher ARP.At this moment, described demand updating block 63 also is used for revising request at the described bearing resource that sends to affiliated core net and carries described ARP, when making the radio bearer of described donor base station on upgrading described Un interface according to the preferential radio bearer resources that guarantees to be used on the described Un interface data forwarding of described ARP.As seen from the above, utilize the relay station of the embodiment of the invention, improved utilance and user's impression of interface-free resources.
The above; only be the specific embodiment of the present invention, but protection scope of the present invention is not limited thereto, anyly is familiar with those skilled in the art in the technical scope that the present invention discloses; can expect easily changing or replacing, all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection range of described claim.
Claims (20)
1. the update method of a radio bearer is characterized in that, comprises;
Obtain first beared information of subscriber equipment, described first beared information is the service quality of the to be switched radio bearer of described subscriber equipment;
The carrying that can not satisfy described subscriber equipment when the service quality of the radio bearer resources on the Un interface is switched when requiring, and determines the requirement of described subscriber equipment to the service quality of the radio bearer resources on the Un interface according to described first beared information;
Send bearing resource to affiliated core net and revise request, in described request, carry of the requirement of described subscriber equipment, make donor base station can be updated in the radio bearer on the described Un interface according to the requirement of described service quality to the service quality of the radio bearer resources on the Un interface.
2. method according to claim 1 is characterized in that, described to be switched radio bearer is for switching the radio bearer that the line data of going forward side by side is transmitted;
When described subscriber equipment switched to target BS by relay station, described first beared information that obtains subscriber equipment comprised:
Reception is from the switching request acknowledgement message that described target BS sends, and comprises in the described switching request acknowledgement message that described target BS confirms to switch the sign of the radio bearer that line data transmits of going forward side by side;
According to described sign, obtain the described requirement that can switch the service quality of the radio bearer that the line data of going forward side by side transmits.
3. method according to claim 2 is characterized in that, the service quality of the radio bearer resources on described definite described Un interface can not satisfy the carrying switching requirement of described subscriber equipment, comprising:
If describedly can switch radio bearer that the line data of going forward side by side transmits for guaranteeing bit rate radio bearer and the described up code check that can switch the radio bearer that the line data of going forward side by side transmits less than descending code check, requirement is switched in the carrying that the service quality of determining the radio bearer resources on the described Un interface can not satisfy described subscriber equipment.
4. method according to claim 2 is characterized in that, describedly determines the requirement of described subscriber equipment to the service quality of the radio bearer resources on the Un interface according to described first beared information, comprising:
Determine the requirement of service quality of the up code check of described Un interface according to the requirement of the service quality of the described descending code check that can switch the radio bearer that the line data of going forward side by side transmits.
5. method according to claim 2 is characterized in that, described donor base station was updated in radio bearer on the described Un interface according to the requirement of described service quality after, described method also comprised:
Transmit the described data that can switch the radio bearer of the line data forwarding of going forward side by side;
When described forwarding of data is finished, discharge the radio bearer resources that is used to transmit described data on the described Un interface;
According to the customer equipment context release message that receives, discharge the radio bearer resources that is used for described subscriber equipment up-downgoing transfer of data on the described Un interface.
6. method according to claim 2 is characterized in that, described donor base station was updated in radio bearer on the described Un interface according to the requirement of described service quality after, described method also comprised:
Receive the customer equipment context release message of described target BS;
According to described customer equipment context release message, discharge the radio bearer resources that is used to transmit the radio bearer resources of described data on the described Un interface and is used for described subscriber equipment up-downgoing transfer of data.
7. method according to claim 1 is characterized in that, described to be switched radio bearer comprises can switch the go forward side by side radio bearer of line data forwarding and the radio bearer that only can switch;
When described subscriber equipment switched to relay station by source base station, described first beared information that obtains comprised:
Receive the handoff request message that described source base station sends, obtain the information that described source base station is proposed the service quality of the sign of the radio bearer that switches and described radio bearer;
According to described handoff request message and own resource situation, determine the radio bearer only can switch and can switch the radio bearer that the line data of going forward side by side is transmitted, and the information that obtains the described radio bearer that only can switch and can switch the service quality of the radio bearer that the line data of going forward side by side transmits.
8. method according to claim 7 is characterized in that, the carrying switching that the service quality of the radio bearer resources on described definite described Un interface can not satisfy described subscriber equipment requires to comprise:
If described to be switched radio bearer comprises that at least one guarantees the bit rate radio bearer, determine that the service quality of the radio bearer resources on the described Un interface can not satisfy the carrying switching requirement of described subscriber equipment.
9. method according to claim 7 is characterized in that, describedly determines the requirement of described subscriber equipment to the service quality of the radio bearer resources on the Un interface according to described first beared information, comprising:
According to the assurance code check of the described radio bearer that only can switch and the described assurance code check addition that can switch the radio bearer that the line data of going forward side by side transmits and determine of the requirement of described subscriber equipment to the service quality of the radio bearer resources on the Un interface.
10. method according to claim 7 is characterized in that, described donor base station was updated in radio bearer on the described Un interface according to the requirement of described service quality after, described method also comprised:
Receive and transmit data;
After described forwarding of data is finished, discharge the radio bearer resources that is used to transmit described data on the described Un interface.
11., it is characterized in that according to claim 4 or 9 described methods, describedly determine of the requirement of described subscriber equipment to the service quality of the radio bearer resources on the Un interface according to described first beared information, comprising:
For being used to transmit the radio bearer assigned priority ARP of data on the described Un interface;
The described modification in the request to the bearing resource that affiliated core net sends also comprises described ARP so that during the radio bearer of described donor base station on upgrading described Un interface according to the preferential radio bearer resources that guarantees to be used on the described Un interface data forwarding of described ARP.
12. a relay station is characterized in that, comprising:
Information acquisition unit is used to obtain first beared information of subscriber equipment, and described first beared information is the service quality of the to be switched radio bearer of described subscriber equipment;
The demand acquiring unit, be used for the carrying that service quality when the radio bearer resources on the Un interface can not satisfy described subscriber equipment and switch when requiring, determine of the requirement of described subscriber equipment the service quality of the radio bearer resources on the Un interface according to described first beared information;
The resource updates unit, be used for sending bearing resource and revise request to affiliated core net, in described request, carry of the requirement of described subscriber equipment, make donor base station can be updated in the radio bearer on the described Un interface according to the requirement of described service quality to the service quality of the radio bearer resources on the Un interface.
13. relay station according to claim 12 is characterized in that, described to be switched radio bearer is for switching the radio bearer that the line data of going forward side by side is transmitted;
When subscriber equipment switched to target BS by relay station, described information acquisition unit comprised:
The first message sink module is used to receive the switching request acknowledgement message that sends from described target BS, comprises in described switching request acknowledgement message that wherein described target BS confirms to switch the sign of the radio bearer that line data transmits of going forward side by side;
The first demand acquisition module is used for according to described sign, obtains the described requirement that can switch the service quality of the radio bearer that the line data of going forward side by side transmits.
14. relay station according to claim 13 is characterized in that, described demand acquiring unit comprises:
First judge module is used to judge that can the service quality of the radio bearer resources on the described Un interface satisfy the requirement of described subscriber equipment;
The first demand determination module, be used for when the service quality of the radio bearer resources on the described Un interface can not satisfy requiring of described subscriber equipment, determine the requirement of service quality of the up code check of described Un interface according to the requirement of the service quality of the described descending code check that can switch the radio bearer that the line data of going forward side by side transmits.
15. relay station according to claim 13 is characterized in that, described device also comprises:
The data forwarding unit is used to transmit the described data that can switch the radio bearer of the line data forwarding of going forward side by side;
The first resource releasing unit is used for discharging the radio bearer resources that is used to transmit described data on the described Un interface when described forwarding of data is finished;
The second resource releasing unit is used for discharging the radio bearer resources that is used for described subscriber equipment up-downgoing transfer of data on the described Un interface according to the customer equipment context release message that receives.
16. relay station according to claim 13 is characterized in that, described device also comprises:
The message sink unit is used to receive the customer equipment context release message of described target BS;
The information resources releasing unit is used for according to described customer equipment context release message, discharges the radio bearer resources that is used to transmit the radio bearer resources of described data on the described Un interface and is used for described subscriber equipment up-downgoing transfer of data.
17. relay station according to claim 12 is characterized in that, described to be switched radio bearer comprises can switch the go forward side by side radio bearer of line data forwarding and the radio bearer that only can switch; When subscriber equipment switched to relay station by source base station, described information acquisition unit comprised
First acquisition module is used to receive the handoff request message that described source base station sends, and obtains the information that described source base station is proposed the service quality of the sign of the radio bearer that switches and described radio bearer;
Second acquisition module, be used for according to described handoff request message and own resource situation, determine the radio bearer only can switch and can switch the radio bearer that the line data of going forward side by side is transmitted, and the information that obtains the described radio bearer that only can switch and can switch the service quality of the radio bearer that the line data of going forward side by side transmits.
18. relay station according to claim 17 is characterized in that, described demand acquiring unit comprises:
Second judge module is used to judge that the service quality of the radio bearer on the described Un interface can not satisfy the requirement of described subscriber equipment;
The second demand determination module, be used for when the service quality of the radio bearer resources on the described Un interface can not satisfy requiring of described subscriber equipment, according to the assurance code check of the described radio bearer that only can switch and the described assurance code check addition that can switch the radio bearer that the line data of going forward side by side transmits and determine of the requirement of described subscriber equipment to the service quality of the radio bearer resources on the Un interface.
19. relay station according to claim 17 is characterized in that, described device also comprises:
The Data Receiving unit is used for receiving the forwarding data;
The 4th resource releasing unit is used for after described forwarding of data is finished, and discharges the radio bearer resources that is used to transmit described data on the described Un interface.
20., it is characterized in that described demand acquiring unit also is used to the radio bearer appointment ARP that is used to transmit data on the described Un interface according to claim 14 or 18 described relay stations;
Described resource updates element resources updating block, also be used for revising request and carry described ARP at the described bearing resource that sends to affiliated core net, when making the radio bearer of described donor base station on upgrading described Un interface according to the preferential radio bearer resources that guarantees to be used on the described Un interface data forwarding of described ARP.
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