Background technology
Long Term Evolution (LTE, Long Term Evolution) LTE (LTE-A of system and evolution, LTE-Advanced) system all is based on the communication system of scheduling of resource, subscriber equipment (UE, UserEquipment) by buffer status report (BSR, Buffer State Report) comes to report the data volume of the medium upstream data to be sent of the buffer memory of this UE to the base station, the base station is according to the data volume of the upstream data of this UE needs transmission, divide the uplink transmission resource that is used in the carrying upstream data for UE, wherein, trigger the triggering mode that BSR reports according to UE, BSR is divided into three types, is specially:
First type, conventional BSR (Regular BSR): if UE detects the higher data arrival of priority than the data of current storage in the buffer memory, then trigger reporting of Regular BSR, if UE has detected data and has arrived when not having data in the script buffer memory, then trigger reporting of Regular BSR, if store data in the overtime and buffer memory of Retx_BSR_Timer, then trigger reporting of Regular BSR;
Second type, periodicity BSR (Periodic BSR):, then trigger reporting of Periodic BSR if Periodic_BSR_Timer is overtime;
The third type, incidentally BSR (Padding BSR): if UE is when needs send MAC PDU, in uplink transmission resource, except the upstream data that carrying needs to send, also have available uplink transmission resource, then trigger Padding BSR.
After UE is distributed to uplink transmission resource in the base station, if UE just can all be carried on all upstream datas that need send in the uplink transmission resource of distribution, then UE no longer reports BSR to the base station, but directly send upstream data, if UE can not all be carried on all upstream datas that need send in the uplink transmission resource of distribution, then UE reports BSR to the base station, the BSR that the base station reports according to UE, determine the data volume of the upstream data that this UE need send, and then carry out the scheduling of uplink transmission resource according to the data volume of determining, if there is multiple BSR to trigger simultaneously, then UE only reports the highest BSR of priority.
If UE has triggered reporting of conventional BSR, and there is not an available uplink transmission resource, then this UE triggers dispatch request (SR, Scheduling Request), promptly send SR to the base station, the request base station distributes uplink transmission resource for this UE, and as shown in Figure 1, UE is as follows according to the detailed process of the uplink transmission resource transmission upstream data of base station assigns:
Step 11, UE sends SR to the base station;
Step 12, base station assigns are used to transmit the uplink transmission resource of BSR;
Step 13, the uplink transmission resource that UE distributes in step 12 according to this base station reports current BSR to this base station;
Step 14, base station are divided the uplink transmission resource that is used in transmit ascending data according to the BSR that receives for UE;
Step 15, UE is according to the uplink transmission resource of base station assigns, and the upstream data that needs is transferred to the base station sends to this base station.
If UE has comprised up-to-date BSR or whole upstream data in uplink, then cancel BSR and the SR that has triggered.In the Rel-9 stage, also introduced dispatch request and forbidden timer SR-ProhibitTimer.In the version before Rel-9, SR is once triggering, will follow-up all can send the Physical Uplink Control Channel (PUCCH of special-purpose SR (D-SR), Physical Uplink Control Channel) send on the resource, introducing SR-ProhibitTimer is in order to limit the time interval of twice SR transmission.SR-ProhibitTimer starts when D-SR sends or restarts, and just can send D-SR next time after SR-ProhibitTimer is overtime, and the SR cancellation need stop SR-ProhibitTimer simultaneously.
Based on competition (CB, Contention Based) uplink is meant that the base station will be carried at based on the uplink transmission resource distribution of competition based on sending to UE in the transmitting and scheduling order of competing, UE sends upstream data according to the uplink transmission resource based on competition of base station assigns, as shown in Figure 2, its concrete processing procedure is as follows:
Step 21, the base station will send to UE based on the uplink configuration information of competition, comprise the transmitting and scheduling identification information etc. based on competition in this uplink configuration information;
Step 22, this UE receives and stores above-mentioned uplink configuration information;
Step 23, the base station sends based on the transmitting and scheduling order of competing to this UE;
Step 24, this UE sends based on the transmission of competing to the base station according to the transmitting and scheduling order that receives;
Step 25, base station after receiving the transmission that UE sends based on competition, solutions that be at war with, and will comprise competition result that competition solves sign and feed back to and compete successful UE.
In the prior art, when the base station is that UE has distributed uplink transmission resource, and this UE based on the uplink transmission resource of distributing after the base station sends upstream data, this UE will cancel the BSR and the SR of triggering, if the carrying out of this UE is the competition failure based on the competition result of the transmission of competition, and this moment, this UE can not send BSR and SR to the base station again, non-competing uplink transmission resource just can not be distributed for this UE in the base station, this has just caused the upstream data of this UE in time to be dispatched, can not send to the base station, overlong time can cause losing of UE storage data.
Embodiment
At length set forth to the main realization principle of embodiment of the invention technical scheme, embodiment and to the beneficial effect that should be able to reach below in conjunction with each accompanying drawing.
As shown in Figure 3, in the embodiment of the invention one, BSR and SR process flow figure, its processing procedure is as follows:
Step 31, UE receives the transmitting and scheduling order based on competition that the base station sends;
Step 32, UE sends based on the transmission of competing to this base station according to the transmitting and scheduling order that receives, and should comprise the BSR of this UE or all upstream datas to be sent in the transmission based on competition;
Step 33, UE receives the competition successful identification information that above-mentioned base station sends;
Step 34, UE after receiving above-mentioned competition successful identification information, BSR and/or SR that cancellation has triggered when sending above-mentioned transmission based on competition.
Wherein should can be following four kinds of situations based on the content that comprises in the transmission of competing:
First kind, only comprise the BSR of this UE;
Second kind, comprise BSR and the part upstream data to be sent of this UE;
The third comprises all upstream datas to be sent;
The 4th kind, comprise the BSR of all upstream datas to be sent and this UE.
In the embodiment of the invention, the BSR that when sending above-mentioned transmission based on competition, triggered of cancellation only, or only cancel the SR that when sending above-mentioned transmission based on competition, has triggered, can also cancel the BSR and the SR that when sending above-mentioned transmission based on competition, have triggered simultaneously.
In addition, above-mentioned competition successful identification information comprises at least a in the following information:
The base station is at the correct affirmation (ACK that sends behind the upstream data of this UE transmission that receives, Acknowledgment) information, ACK information is carried by the automatic repeat requests indicating channel of physical mixed (PHICH, Physical Hybrid Automatic Repeat Request Channel); The base station with the physical downlink control channel (PDCCH of the above-mentioned corresponding feedback time point of transmission transmission based on competition, Physical Downlink Control Channel) order, wherein the used scrambler of this PDCCH order is the Cell Radio Network Temporary Identifier/Identity, Cell-RNTI (C-RNTI, Cell-Radio NetworkTemporary Identity) of this UE; Carry medium Access Layer (MAC, the MediumAccess Control) control unit of the C-RNTI of this UE.
In the embodiment of the invention,, can also further stop SR-ProhibitTimer when cancelling the SR that has triggered so if disposed SR-ProhibitTimer.
By above-mentioned processing procedure as can be known, in the technical scheme that the embodiment of the invention one proposes, the transmitting and scheduling order that UE sends according to the base station based on competition, send based on the transmission of competing to the base station, should comprise the BSR of this UE or all upstream datas to be sent in the transmission based on competition, after the competition successful identification information that receives the base station transmission, BSR and/or SR that cancellation has triggered when sending above-mentioned transmission based on competition, if UE receives the competition successful identification information, prove that then the base station has correctly received above-mentioned transmission based on competition, this moment, this UE was identified in the base station, if comprised part upstream data to be sent in the transmission based on competition, then the base station can be carried out the follow-up scheduling of uplink transmission resource for this UE, if comprised whole upstream datas to be sent in the transmission based on competition, then this UE has not had upstream data to pass, this shows, competing successfully back cancellation BSR and/or SR based on the uplink of competition, can not influence UE to the base station transmits upstream data, this with regard to having solved because the problem that the upstream data of the UE that cancellation BSR and SR cause can't in time be dispatched.
Provide more specifically execution mode below.
As shown in Figure 4, in the embodiment of the invention one, BSR and SR processing method specific implementation flow chart, its concrete processing procedure is as follows:
Step 41, UE triggers SR, and monitors the transmitting and scheduling order based on competition that the base station sends;
Step 42, the base station sends based on the transmitting and scheduling order of competing to UE, should be based on the resource identification that carries in the transmitting and scheduling order of competing based on the uplink transmission resource of competition;
Step 43, UE sends the transmission based on competition on the uplink transmission resource of the resource identification correspondence that receives, should comprise the BSR of this UE or all upstream datas to be sent in the transmission based on competition, and UE monitors non-competing transmitting and scheduling order simultaneously;
Step 44, the base station receives the transmission based on competition, if correct the reception then should be competed successfully based on the transmission of competition, this moment, this base station sent the competition successful identification information to this UE;
Wherein, step 41 (UE triggers SR) and step 42 (base station sends the transmitting and scheduling order based on competition) are two processes fully independently, there is not precedence relationship, there is not causality yet, and the base station is before competing successfully, can not discern and send this UE based on the transmission of competition, also just can not discern send this based on the UE of the transmission of competition and the SR that receives whether from same UE.
In the embodiment of the invention, if the base station correctly receives the transmission based on competition that UE sends, promptly compete successfully, then can send this UE, the untreated SR in this base station do not handle, if the incorrect transmission that receives this UE transmission in base station based on competition, i.e. competition failure, then the base station can not send any indication information to this UE.
Step 45, after UE received above-mentioned competition successful identification information, BSR and/or SR that cancellation has triggered when sending above-mentioned transmission based on competition be not if UE receives above-mentioned competition successful identification information, then keep BSR and the SR that has triggered, and in the time can sending BSR or SR, continue to send.
Accordingly, the embodiment of the invention one also provides a kind of UE, and its structure comprises first receiving element 51, transmitting element 52, second receiving element 53 and cancellation unit 54 as shown in Figure 5, wherein:
First receiving element 51 is used to receive the transmitting and scheduling order based on competition that the base station sends;
Transmitting element 52 is used for the transmitting and scheduling order that receives according to first receiving element 51, sends transmission based on competition to above-mentioned base station, should comprise the BSR of this UE or all upstream datas to be sent in the transmission based on competition;
Second receiving element 53 is used to receive the competition successful identification information that this base station sends;
Cancellation unit 54 is used for after second receiving element 53 receives above-mentioned competition successful identification information, BSR and/or SR that cancellation has triggered when sending above-mentioned transmission based on competition.
Preferably, the competition successful identification information that receives of second receiving element 53 comprises at least a in the following information:
The base station is in the correct ACK information that sends behind the upstream data of this UE transmission that receives;
Is ordering with the above-mentioned PDCCH that sends based on the corresponding feedback time point of the transmission of competition the base station, and the used scrambler of this PDCCH order is the C-RNTI of this UE;
Carry the MAC Control Element of the C-RNTI of this UE.
Preferably, if the SR that the cancellation of cancellation unit 54 has triggered when the transmission that sends based on competition, then this UE subscriber equipment also comprises stop element, is used to stop SR-ProhibitTimer.
As shown in Figure 6, in the embodiment of the invention two, BSR and SR process flow figure, its processing procedure is as follows:
Step 61, UE receives the first transmitting and scheduling order based on competition that the base station sends;
Step 62, UE sends based on the transmission of competing to this base station according to the first transmitting and scheduling order that receives, and should comprise the BSR of this UE or all upstream datas to be sent in the transmission based on competition;
Step 63, UE receives the second non-competing transmitting and scheduling order that above-mentioned base station sends after the transmission that sends based on competition;
Step 64, UE sends non-competing transmission according to the second transmitting and scheduling order that receives to above-mentioned base station, comprises the BSR of this UE or all upstream datas to be sent in the above-mentioned non-competing transmission;
Step 65, UE after sending above-mentioned non-competing transmission, BSR and/or SR that cancellation has triggered when sending above-mentioned non-competing transmission.
Wherein, above-mentioned based on competition transmission and non-competing transmission in the content that comprises all can be following four kinds of situations:
First kind, only comprise the BSR of this UE;
Second kind, comprise BSR and the part upstream data to be sent of this UE;
The third comprises all upstream datas to be sent;
The 4th kind, comprise the BSR of all upstream datas to be sent and this UE.
In the embodiment of the invention, the BSR that triggered when sending above-mentioned non-competing transmission of cancellation only, or only cancel the SR that has triggered when sending above-mentioned non-competing transmission can also cancel the BSR and the SR that have triggered simultaneously when sending above-mentioned non-competing transmission.
In addition, in the embodiment of the invention, UE also further comprised the step that sends SR to this base station before the second non-competing transmitting and scheduling order that receives the base station transmission, and the base station is that this UE distributes non-competing uplink transmission resource according to the SR that receives.
In the embodiment of the invention,, can also further stop SR-ProhibitTimer when cancelling the SR that has triggered so if disposed SR-ProhibitTimer.
By above-mentioned processing procedure as can be known, in the technical scheme that the embodiment of the invention two proposes, the first transmitting and scheduling order that UE sends according to the base station based on competition, send based on the transmission of competing to this base station, should comprise the BSR of this UE or all upstream datas to be sent in the transmission based on competition, this UE is according to the second non-competing transmitting and scheduling order of base station transmission then, send non-competing transmission to this base station, comprise the BSR of this UE or all upstream datas to be sent in this non-competing transmission, this UE cancels BSR and/or the SR that has triggered when sending non-competing transmission then, because UE has sent non-competing transmission to the base station, then this UE can be identified in the base station, if not comprised part upstream data to be sent in the competition transmission, then the base station can be carried out the follow-up scheduling of uplink transmission resource for this UE, if not comprised whole upstream datas to be sent in the competition transmission, then this UE has not had upstream data to pass, this shows, sending non-competing transmission back cancellation BSR and/or SR, can not influence UE to the base station transmits upstream data, this with regard to having solved because the problem that the upstream data of this UE that cancellation BSR and SR cause can't in time be dispatched.
Provide more specifically execution mode below.
As shown in Figure 7, in the embodiment of the invention two, BSR and SR processing method specific implementation flow chart, its concrete processing procedure is as follows:
Step 71, UE triggers SR, and monitors the transmitting and scheduling order based on competition that the base station sends;
Step 72, the base station sends based on the transmitting and scheduling order of competing to UE, should be based on the resource identification that carries in the transmitting and scheduling order of competing based on the uplink transmission resource of competition;
Step 73, UE sends the transmission based on competition on the uplink transmission resource of the resource identification correspondence that receives, should comprise the BSR of this UE or all upstream datas to be sent in the transmission based on competition, and UE monitors non-competing transmitting and scheduling order simultaneously;
Step 74, the base station receives the transmission based on competition, if correct the reception, then should compete successfully based on the transmission of competition, this moment, this base station sent the competition successful identification information to this UE, if the incorrect transmission that receives this UE transmission in base station based on competition, i.e. competition failure, then the base station can not send any indication information to this UE;
Wherein, step 71 (UE triggers SR) and step 72 (base station sends the transmitting and scheduling order based on competition) are two processes fully independently, there is not precedence relationship, there is not causality yet, and the base station is before competing successfully, can not discern and send this UE based on the transmission of competition, also just can not discern send this based on the UE of the transmission of competition and the SR that receives whether from same UE.
In the embodiment of the invention,, promptly compete successfully if the base station correctly receives the transmission based on competition that UE sends, then can to this UE transmission, the untreated SR in this base station do not handle.
Step 75, base station receive the SR that this UE sends, and send non-competing transmitting and scheduling order according to this SR to UE, carry the resource identification of the uplink transmission resource of base station assigns in this non-competing transmitting and scheduling order;
Step 76, UE sends non-competing transmission on the uplink transmission resource of the resource identification correspondence that receives, comprise the BSR of this UE or all upstream datas to be sent in this non-competing transmission;
Step 77, UE after sending above-mentioned non-competing transmission, BSR and/or SR that cancellation has triggered when sending above-mentioned non-competing transmission.
Accordingly, the embodiment of the invention two also provides a kind of UE, and its structure comprises first receiving element 81, first transmitting element 82, second receiving element 83, second transmitting element 84 and cancellation unit 85 as shown in Figure 8, wherein:
First receiving element 81 is used to receive the first transmitting and scheduling order based on competition that the base station sends;
First transmitting element 82 is used for the first transmitting and scheduling order that receives according to first receiving element 81, sends transmission based on competition to above-mentioned base station, comprises the BSR of this UE or all upstream datas to be sent in the transmission based on competition;
Second receiving element 83 is used for receiving the second non-competing transmitting and scheduling order that above-mentioned base station sends after first receiving element 81 receives the first transmitting and scheduling order;
Second transmitting element 84 is used for the second transmitting and scheduling order that receives according to second receiving element 83, sends non-competing transmission to above-mentioned base station, comprises the BSR of this UE or all upstream datas to be sent in the non-competing transmission;
Cancellation unit 85 is used at second transmitting element 84 after above-mentioned base station sends non-competing transmission, BSR and/or SR that cancellation has triggered when sending above-mentioned non-competing transmission.
Preferably, this UE also comprises the 3rd transmitting element, is used for sending SR to this base station before second receiving element 83 receives the second non-competing transmitting and scheduling order of base station transmission.
Preferably, if the SR that the cancellation of cancellation unit 85 has triggered when the transmission that sends based on competition, then this UE subscriber equipment also comprises stop element, is used to stop SR-ProhibitTimer.
As shown in Figure 9, in the embodiment of the invention three, BSR and SR process flow figure, its processing procedure is as follows:
Step 91, UE receives the transmitting and scheduling order based on competition that the base station sends;
Step 92, UE sends based on the transmission of competing to this base station according to the transmitting and scheduling order that receives, and should comprise described UE all upstream datas to be sent in the transmission based on competition;
Step 93, after determining this transmitting uplink data piece that comprises can not retransmit in based on transmission of competition, BSR and/or SR that cancellation has triggered when sending this based on the transmission of competition.
Wherein should can be following two kinds of situations based on the content that comprises in the transmission of competing:
First kind, comprise all upstream datas to be sent;
Second kind, comprise the BSR of all upstream datas to be sent and this UE.
In the embodiment of the invention, the BSR that when sending above-mentioned transmission based on competition, triggered of cancellation only, or only cancel the SR that when sending above-mentioned transmission based on competition, has triggered, can also cancel the BSR and the SR that when sending above-mentioned transmission based on competition, have triggered simultaneously.
In the embodiment of the invention,, can also further stop SR-ProhibitTimer when cancelling the SR that has triggered so if disposed SR-ProhibitTimer.
By above-mentioned processing procedure as can be known, in the technical scheme that the embodiment of the invention three proposes, the transmitting and scheduling order that UE sends according to the base station based on competition, send based on the transmission of competing to this base station, comprise this UE all upstream datas to be sent in the transmission based on competition, and determine above-mentioned after the transmission of uplink data piece that comprises can not retransmit in based on the transmission of competition, BSR and/or SR that cancellation has triggered when sending above-mentioned transmission based on competition, owing to comprised all upstream datas in the transmission based on competition, and the transmitting uplink data piece that sends can not retransmit, this moment, this UE did not have upstream data to pass, therefore cancel BSR this moment and/or SR can not influence UE to the base station transmits upstream data, this with regard to having solved because the problem that the upstream data of this UE that cancellation BSR and SR cause can't in time be dispatched.
Provide more specifically execution mode below.
As shown in figure 10, in the embodiment of the invention three, BSR and SR processing method specific implementation flow chart, its concrete processing procedure is as follows:
Step 101, UE triggers SR, and monitors the transmitting and scheduling order based on competition that the base station sends;
Step 102, the base station sends based on the transmitting and scheduling order of competing to UE, should be based on the resource identification that carries in the transmitting and scheduling order of competing based on the uplink transmission resource of competition;
Step 103, UE sends the transmission based on competition on the uplink transmission resource of the resource identification correspondence that receives, should comprise the BSR of this UE or all upstream datas to be sent in the transmission based on competition, and UE monitors non-competing transmitting and scheduling order simultaneously;
Step 104, the transmitting uplink data piece based in the transmission of competition that UE determines transmission can not retransmit, then cancel the BSR and/or the SR that when sending above-mentioned transmission based on competition, have triggered, if determining the transmitting uplink data piece based in the transmission of competition of transmission can retransmit, then keep BSR and the SR that has triggered, and in the time can sending BSR or SR, continue to send;
Step 105, the base station receives the transmission based on competition, if correct the reception, then should compete successfully based on the transmission of competition, this moment, this base station sent the competition successful identification information to this UE, if the incorrect transmission that receives this UE transmission in base station based on competition, i.e. competition failure, then the base station can not send any indication information to this UE.
Wherein, step 101 (UE triggers SR) and step 102 (base station sends the transmitting and scheduling order based on competition) are two processes fully independently, there is not precedence relationship, there is not causality yet, and the base station is before competing successfully, can not discern and send this UE based on the transmission of competition, also just can not discern send this based on the UE of the transmission of competition and the SR that receives whether from same UE.
In the embodiment of the invention,, promptly compete successfully if the base station correctly receives the transmission based on competition that UE sends, then can to this UE transmission, the untreated SR in this base station do not handle.
Accordingly, the embodiment of the invention three also provides a kind of UE, and its structure comprises receiving element 111, transmitting element 112, determining unit 113 and cancellation unit 114 as shown in figure 11, wherein:
Receiving element 111 is used to receive the transmitting and scheduling order based on competition that the base station sends;
Transmitting element 112 is used for the transmitting and scheduling order that receives according to receiving element 111, sends transmission based on competition to above-mentioned base station, should comprise this UE all upstream datas to be sent in the transmission based on competition;
Determining unit 113 is used for determining that the above-mentioned transmitting uplink data piece that comprises based on the transmission of competition can not retransmit;
Cancellation unit 114 is used for after determining unit 113 is determined the above-mentioned transmitting uplink data piece that comprises of transmission based on competition and can not be retransmitted, BSR and/or SR that cancellation has triggered when sending above-mentioned transmission based on competition.
Preferably, if the SR that the cancellation of cancellation unit 114 has triggered when the transmission that sends based on competition, then this UE subscriber equipment also comprises stop element, is used to stop SR-ProhibitTimer.
Obviously, those skilled in the art can carry out various changes and modification to the present invention and not break away from the spirit and scope of the present invention.Like this, if of the present invention these are revised and modification belongs within the scope of claim of the present invention and equivalent technologies thereof, then the present invention also is intended to comprise these changes and modification interior.