CN101998550B - Method and device for assigning RNTI (Radio Network Temporary Identifier) in carrier aggregation system - Google Patents
Method and device for assigning RNTI (Radio Network Temporary Identifier) in carrier aggregation system Download PDFInfo
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- CN101998550B CN101998550B CN200910090798.2A CN200910090798A CN101998550B CN 101998550 B CN101998550 B CN 101998550B CN 200910090798 A CN200910090798 A CN 200910090798A CN 101998550 B CN101998550 B CN 101998550B
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Abstract
The invention discloses a method for assigning an RNTI (Radio Network Temporary Identifier) in a carrier aggregation system, comprising the following steps of: for each aggregation cell accessed by a user terminal, respectively and independently assigning the RNTI for the user terminal according to an access request of the user terminal; and carrying out the user terminal identification, scheduling and data receiving and transmitting on the RNTI assigned by the user terminal. In the invention, for each aggregation cell accessed by the user terminal, the RNTI is respectively and independently assigned for the user terminal according to the access request of the user terminal, thereby each aggregation cell can independently assign the RNTI for the user terminal according to the aggregation cell and carry out the scheduling, data receiving and transmitting and other operations of the user terminal.
Description
Technical field
The present invention relates to communication field, relate in particular to the method and apparatus that in a kind of carrier aggregation system, RNTI distributes.
Background technology
LTE (Long Term Evolution, Long Term Evolution) in system, by PDCCH (PhysicalDownlink Control Channel, Physical Downlink Control Channel) send the resource scheduling information of uplink downlink, by RNTI (Radio Network Temporary Identifier, Radio Network Temporary Identifier) distinguish the kind of the upper schedule information of PDCCH, comprise paging information, system information, PDSCH (PhysicalDownlink Shared Channel, Physical Downlink Shared Channel) or PUSCH (Physical UplinkShared Channel, Physical Uplink Shared Channel) go up the information relevant to user data etc.For example, the corresponding paging information of P-RNTI, SI-RNTI correspondence system information, UE (the User Equipment on the corresponding PDSCH of C-RNTI and PUSCH, user terminal) information, the power control information on the corresponding PUCCH of TPC-PUSCH-RNTI and TPC-PUCCH-RNTI and PUSCH.
Wherein, C-RNTI is corresponding one by one with UE, for the UE in RRC (Radio Resource Control, Radio Resource is controlled) connection status one of community unique identification.When UE detects the C-RNTI corresponding with it on PDCCH, UE will receive or send data on the resource location in DCI corresponding to this C-RNTI (DownlinkControl Information, Downlink Control Information) indication or association.
When UE does not have C-RNTI, network can be that UE distributes a T-C-RNTI (interim identify label) at the initial random access phase of UE.Once the random of UE accesses successfully, UE will be made as the T-C-RNTI of network allocation the C-RNTI of oneself.
Concrete, as shown in Figure 1, the UE in RRC idle condition, by obtain the C-RNTI of self based on the random access of competition, comprises the following steps:
Step 101, UE sends random access leader sequence preamble to network side.
Step 102, network side sends the Msg2 response message of random access leader sequence to UE, and this message is included as the T-C-RNTI of UE distribution etc.
Step 103, UE detects accidental access response message on PDCCH, and sends Msg3 message on the ascending resource position of its indication.Msg3 carries CCCH (Common Control Channel, Common Control Channel) SDU (Service Data Unit, Service Data Unit), for the identity of informing network UE with the solution that is at war with.
Step 104, network side sends the response of Msg3 message to UE, i.e. and competition solves message.If comprise UE competition in competition solution message, solve ID (Identification, sign), and the UE comprising competition solves the CCCH SDU that ID and UE carry in Msg3 and matches, UE thinks and is successfully completed random access, and T-C-RNTI is set to the C-RNTI of UE.
In prior art, when UE switches between source base station and target BS, can obtain target BS is the C-RNTI that UE distributes, Figure 2 shows that the LET network architecture that UE switches, when UE need to carry out base station switching, if exist X2 to connect between base station, can complete handoff procedure by X2 interface; If eNB does not have X2 interface between (base station), can complete by S1 interface.
The process that completes switching by X2 interface as shown in Figure 3, specifically comprises the following steps:
(0) measurement report that source eNB reports based on UE and RRM (Radio Resource Management, RRM) information judgement UE need to switch.
(1) source eNB sends handover request message to target eNB, carries UE and switch to target eNB the necessary information of preparing in handover request information.
(2) if the resource that switching UE is used goes through in target eNB, Target cell will configure corresponding resource for this UE so, and send handover request Ack message to source eNB.Handover request Ack message comprises UE while switching to target eNB required parameter information, comprises that target eNB is the C-RNTI that UE distributes.
(3) source eNB, after receiving the handover request Ack message that target eNB sends, sends switching command information to UE, and indication UE switches to target eNB.In the switching command that source eNB sends to UE, comprise the content in the handover request Ack message that target eNB sends to source eNB.
(4), after receiving switching command, UE execution is synchronizeed with target eNB.If in switching command dispensing special-purpose RACH preamble, use uncontested random access procedure access Target cell, if there is no the RACH preamble of dispensing special use, use based on competition random access procedure access Target cell.
(5) when UE successfully accesses behind Target cell, UE sends and has switched (handover complete) message, to target eNB, indicates the switching flow of UE to complete.Behind UE target approach community, will use the C-RNTI that target eNB is its distribution to receive down dispatch information.
The process that completes switching by S1 interface as shown in Figure 4, the reciprocal process of source eNB and target eNB is by MME (Mobility Management Enetity, Mobility Management Entity) realize, and after switching flow completes, by target eNB, to MME, send and switched notification message, due to overall process with by X2 interface, complete the similar process of switching, do not repeat them here.
UE obtains after the C-RNTI of self, if in normal data transmit-receive process, the C-RNTI of oneself detected, reception or the transmission in the enterprising row data of corresponding video resource according to the schedule information of carrying in DCI corresponding to this C-RNTI on PDCCH.
LTE system can also be distributed SPS-RNTI (Semi-Persistent Scheduling-RNTI for UE, semi-continuous scheduling-Radio Network Temporary Identifier): the usage of SPS-RNTI is the same with C-RNTI, just use the UE of semi-continuous scheduling mode to be just assigned with SPS-RNTI.It is that the UE that carries out semi-continuous scheduling distributes corresponding SPS-RNTI that network connects reallocation message by RRC; In handoff procedure, target eNB in handover request Ack message for UE distributes corresponding SPS-RNTI.When UE detects the SPS-RNTI of self on PDCCH, according to indication activation or the deexcitation system of SPS-RNTI correspondence DCI content, be the SPS resource that its distributes.
LTE system can also be UE distribution T PC-PUSCH-RNTI (Temporary PowerControl-Physical Uplink Shared Channel-RNTI, through-put power control-Physical Uplink Shared Channel-Radio Network Temporary Identifier) and TPC-PUCCH-RNTI (TPC-Physical Uplink ControlChannel, through-put power control-Physical Uplink Control Channel-Radio Network Temporary Identifier), for UE is carried out to through-put power control.A plurality of UE can be used identical TPC-PUSCH-RNTI and TPC-PUCCH-RNTI to carry out through-put power control, or use separately independently TPC-PUSCH-RNTI and TPC-PUCCH-RNTI to carry out through-put power control.When UE detects the TPC-PUSCH-RNTI of indication and TPC-PUCCH-RNTI on PDCCH, according to the indication of TPC-PUSCH-RNTI and the corresponding DCI content of TPC-PUCCH-RNTI, the through-put power on PUSCH and PUCCH is controlled.
But in LTE system, UE synchronization can only carry out data transmit-receive on a carrier wave.In order to support wider transmission bandwidth so that higher transmission rate to be provided, LTE-A (LTE-Advanced, the further evolution of LTE) system has adopted carrier aggregation technology, makes UE can on a plurality of carrier waves corresponding to a plurality of communities, carry out reception and the transmission of data simultaneously.At network side, because each can carry out only having an Independent Carrier Wave in the community of carrier aggregation, can independently carry out the carrier wave of data receipts/send out, therefore, when the UE that adopts carrier aggregation is simultaneously and when a plurality of community that can carry out carrier aggregation receives/send data, UE can be considered as a plurality of carrier waves a plurality of communities and safeguard.
The UE that supports carrier aggregation, is first linked in Yi Ge community by random access procedure, and then network side is this UE configuration by dedicated signaling or activates other communities that can carry out carrier aggregation operation.Configuration and activation can be a process, can be also two processes separately: be first configured and then activate.In layoutprocedure, network side is notified the configuration parameter of other communities of UE by dedicated signaling, such as carrier frequency point information of other communities etc.
But, in existing LTE-A system, be not also provided as the method that UE distributes C-RNTI: in LTE system, UE under connection status is only linked into Yi Ge community, so for UE distributes unique RNTI, just can carry out exactly UE sign, scheduling and data transmit-receive in Gai community.And in LTE-A system, introducing due to carrier aggregation characteristic, the UE that carries out carrier aggregation under connection status is linked in a plurality of communities, in order accurately to identify UE in a plurality of aggregation cell, and carry out UE sign, scheduling and data transmit-receive, new RNTI need to be distributed for UE in a plurality of aggregation cell, but, in prior art, only having first community of the random access of UE is that UE has distributed RNTI, therefore, the method for the distribution UE of existing LTE system Zhong Dan community sign cannot be applicable in carrier aggregation system.
Summary of the invention
The invention provides the method and apparatus that in a kind of carrier aggregation system, RNTI distributes, to solve the problem that in LTE-A system, UE distributes C-RNTI.
The invention provides a kind of method that in carrier aggregation system, RNTI distributes, comprising:
Each aggregation cell for user terminal access, according to the access request of described user terminal, be that described user terminal distributes Radio Network Temporary Identifier RNTI independently respectively, and carry out user terminal identification, scheduling and data transmit-receive according to the RNTI distributing for described user terminal.
Described each aggregation cell for user terminal access, comprises for described user terminal distributes Radio Network Temporary Identifier RNTI independently according to the access request of described user terminal respectively:
When the random access carrier paradigmatic system Zhong of described user terminal community, and when described user terminal need to access new polymerizable community, for described user terminal configures/activate the member carrier of described new polymerizable community, and in the configuration/activation signaling sending to described user terminal, carry the RNTI distributing into described user terminal;
When the described new polymerizable community of the random access of described user terminal, for distributing, described user terminal is different from the interim RNTI that new aggregation cell has been distributed RNTI; After the random access of described user terminal described new polymerizable community success, the RNTI carrying is defined as to the RNTI sign of described user terminal in described new polymerizable community in described configuration/activation signaling.
Described each aggregation cell for user terminal access, comprises for described user terminal distributes Radio Network Temporary Identifier RNTI independently according to the access request of described user terminal respectively:
When the random access carrier paradigmatic system Zhong of described user terminal community, and described user terminal be need to access new polymerizable community time, for described user terminal configures/activate the member carrier of described new polymerizable community;
When the described new polymerizable community of the random access of described user terminal, for distributing, described user terminal is different from the interim RNTI that new aggregation cell has been distributed RNTI; After the random access of described user terminal described new polymerizable community success, described interim RNTI is defined as to the RNTI sign of described user terminal in described new polymerizable community.
Described each aggregation cell for user terminal access, comprises for described user terminal distributes Radio Network Temporary Identifier RNTI independently according to the access request of described user terminal respectively:
When described user terminal switches from aggregation cell, source to target polymerization community, aggregation cell, described source sends handover request message to described target polymerization community;
When the handover request of described user terminal is agreed in described target polymerization community, described target polymerization community sends handover request ack message to aggregation cell, described source, in described handover request ack message, carrying described target polymerization community is the RNTI information that described user terminal distributes.
Described RNTI is specially C-RNTI, SPS-RNTI, TPC-PUSCH-RNTI and TPC-PUCCH-RNTI.
The C-RNTI that described T-C-RNTI Yu Zhe has distributed community is different.
Described TPC-PUSCH-RNTI is different with the RNTI that TPC-PUCCH-RNTI Yu Zhe community has been distributed.
For each aggregation cell of user terminal access, according to the access request of described user terminal, be, after described user terminal distributes Radio Network Temporary Identifier RNTI, also to comprise independently respectively:
It is that C-RNTI and/or the SPS-RNTI that described user terminal distributes carries out data transmit-receive that described user terminal is used described aggregation cell in aggregation cell, and using described aggregation cell is that TPC-PUSCH-RNTI and the TPC-PUCCH-RNTI that described user terminal distributes carries out through-put power control.
In a RNTI assigned unit, comprising:
Sign allocation units, for each aggregation cell for user terminal access, are that described user terminal distributes Radio Network Temporary Identifier RNTI according to the access request of described user terminal respectively independently;
Sign is used unit, for being that the RNTI that described user terminal distributes carries out user terminal identification, scheduling and data transmit-receive according to described sign allocation units.
Described sign allocation units comprise:
Configuration/activation subelement, for working as the random access carrier paradigmatic system Zhong of described user terminal community, and when described user terminal need to access new polymerizable community, for described user terminal configures/activate the member carrier of described new polymerizable community, and in the configuration/activation signaling sending to described user terminal, carry the RNTI distributing into described user terminal;
Sign is determined subelement, for when described user terminal accesses described new polymerizable community at random, for described user terminal distributes, is different from the interim RNTI that new aggregation cell has been distributed RNTI; After the random access of described user terminal described new polymerizable community success, the RNTI carrying is defined as to the RNTI sign of described user terminal in described new polymerizable community in described configuration/activation signaling.
Described configuration/activation subelement also for: when the random access carrier paradigmatic system Zhong of described user terminal community, and when described user terminal need to access new polymerizable community, for described user terminal configures/activate the member carrier of described new polymerizable community;
Described sign determine subelement also for: when the described new polymerizable community of the random access of described user terminal, for described user terminal distributes, be different from the interim RNTI that new aggregation cell has been distributed RNTI; After the random access of described user terminal described new polymerizable community success, described interim RNTI is defined as to the RNTI sign of described user terminal in described new polymerizable community.
Described sign allocation units comprise:
Handover request subelement, for when described user terminal switches from aggregation cell, source to target polymerization community, sends handover request message to described target polymerization community;
Handoff response subelement, for when the handover request of described user terminal is agreed in described target polymerization community, to aggregation cell, described source, send handover request ack message, in described handover request ack message, carrying described target polymerization community is the RNTI information that described user terminal distributes.
Described RNTI is specially C-RNTI, SPS-RNTI, TPC-PUSCH-RNTI and TPC-PUCCH-RNTI.
The C-RNTI that described T-C-RNTI Yu Zhe has distributed community is different.
Described TPC-PUSCH-RNTI is different with the RNTI that TPC-PUCCH-RNTI Yu Zhe community has been distributed.
, comprising:
Data transmit-receive unit is that C-RNTI and/or the SPS-RNTI that described user terminal distributes carries out data transmit-receive for use described aggregation cell in aggregation cell;
Power control unit is that TPC-PUSCH-RNTI and the TPC-PUCCH-RNTI that described user terminal distributes carries out through-put power control for using described aggregation cell.
Compared with prior art, the present invention at least has the following advantages:
In the present invention, each aggregation cell for user terminal access, according to the access request of described user terminal, be that described user terminal distributes Radio Network Temporary Identifier RNTI independently respectively, thereby make the RNTI that each aggregation cell can be user terminal independent allocation according to this aggregation cell accurately identify user terminal, carry out the operation such as scheduling, data transmit-receive of user terminal.
Accompanying drawing explanation
In order to be illustrated more clearly in embodiments of the invention or technical scheme of the prior art, to the accompanying drawing of required use in embodiments of the invention 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 skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the schematic flow sheet that in prior art, the UE in RRC idle condition passes through to obtain based on the random access of competition the C-RNTI of self;
Fig. 2 is the LTE network architecture that in prior art, UE switches;
Fig. 3 completes the process schematic diagram of switching by X2 interface in prior art;
Fig. 4 completes the process schematic diagram of switching by S1 interface in prior art;
Fig. 5 is the schematic flow sheet of the method that in the aggregation cell that provides of embodiments of the invention, RNTI distributes;
Fig. 6 is the process schematic diagram that user terminal that embodiments of the invention provide carries out the configuration/activation of polymerization carrier wave;
Fig. 7 is the process schematic diagram that user terminal that embodiments of the invention provide switches between aggregation cell;
Fig. 8 is the random process schematic diagram that accesses new aggregation cell of UE that embodiments of the invention provide;
Fig. 9 is random another process schematic diagram that accesses new aggregation cell of UE that embodiments of the invention provide;
Figure 10 is that the C-RNTI of UE in the carrier aggregation system that provides of embodiments of the invention distributes schematic diagram;
Figure 11 is the structural representation of RNTI assigned unit in the carrier aggregation system that provides of embodiments of the invention;
Figure 12 is another structural representation of RNTI assigned unit in the carrier aggregation system that provides of embodiments of the invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is only the present invention's part embodiment, rather than whole embodiment.Embodiment based in the present invention, those of ordinary skills, not making the every other embodiment obtaining under creative work prerequisite, belong to the scope of protection of the invention.
UE for the access of single community in LTE system carries out RNTI distribution, and carry out UE identification according to the RNTI distributing, scheduling and data transmit-receive, but, in LTE-A system, introduced aggregation cell, be that UE can access a plurality of communities simultaneously, now, while only having initial access network due to UE, obtain Dan community RNTI, cannot adapt to the requirement of aggregation cell in LTE-A system, for this problem, embodiments of the invention provide the RNTI distribution method of UE in a kind of aggregation cell, core concept is: for each aggregation cell of UE access, respectively independently for UE distributes RNTI, and carry out UE identification according to the RNTI distributing for UE, scheduling and data transmit-receive.
Embodiments of the invention provide a kind of method that in aggregation cell, RNTI distributes, and as shown in Figure 5, comprise the following steps:
Wherein, for each aggregation cell of user terminal access, according to the access request of described user terminal, for distributing Radio Network Temporary Identifier RNTI, described user terminal comprises independently respectively:
When the random access carrier paradigmatic system Zhong of described user terminal community, and when described user terminal need to access new polymerizable community, for described user terminal configures/activate the member carrier of described new polymerizable community, and in the configuration/activation signaling sending to described user terminal, carry the RNTI distributing into described user terminal;
When the described new polymerizable community of the random access of described user terminal, for distributing, described user terminal is different from the interim RNTI that new aggregation cell has been distributed RNTI; After the random access of described user terminal described new polymerizable community success, described RNTI is defined as to the RNTI sign of described user terminal in described new polymerizable community.
For each aggregation cell of user terminal access, according to the access request of described user terminal, for distributing Radio Network Temporary Identifier RNTI, described user terminal can also comprise independently respectively:
When the random access carrier paradigmatic system Zhong of described user terminal community, and described user terminal be need to access new polymerizable community time, for described user terminal configures/activate the member carrier of described new polymerizable community;
When the described new polymerizable community of the random access of described user terminal, for distributing, described user terminal is different from the interim RNTI that new aggregation cell has been distributed RNTI; After the random access of described user terminal described new polymerizable community success, described interim RNTI is defined as to the RNTI sign of described user terminal in described new polymerizable community.
Described each aggregation cell for user terminal access, can also comprise for described user terminal distributes Radio Network Temporary Identifier RNTI independently according to the access request of described user terminal respectively:
When described user terminal switches from aggregation cell, source to target polymerization community, aggregation cell, described source sends handover request message to described target polymerization community;
When the handover request of described user terminal is agreed in described target polymerization community, described target polymerization community sends handover request ack message to aggregation cell, described source, in described handover request ack message, carrying described target polymerization community is the RNTI information that described user terminal distributes.
Described RNTI is specially C-RNTI, SPS-RNTI, TPC-PUSCH-RNTI and TPC-PUCCH-RNTI.
The C-RNTI that described T-C-RNTI Yu Zhe has distributed community is different.
Described TPC-PUSCH-RNTI is different with the RNTI that TPC-PUCCH-RNTI Yu Zhe community has been distributed.
For each aggregation cell of user terminal access, according to the access request of described user terminal, be, after described user terminal distributes Radio Network Temporary Identifier RNTI, can also comprise independently respectively:
It is that C-RNTI and/or the SPS-RNTI that described user terminal distributes carries out data transmit-receive that described user terminal is used described aggregation cell in aggregation cell, and using described aggregation cell is that TPC-PUSCH-RNTI and the TPC-PUCCH-RNTI that described user terminal distributes carries out through-put power control.
Below in conjunction with specific embodiment, introduce in detail the method that RNTI in aggregation cell provided by the invention distributes, wherein, RNTI be take the C-RNTI of user terminal and is described as example.
Paper is the process that user terminal carries out the configuration/activation of polymerization carrier wave, as shown in Figure 6, comprises the following steps:
Step 601 in the CC-1 and CC-2 of UE1 and UE2 access carrier paradigmatic system, and is assigned with respectively C-RNTI-1 and C-RNTI-2 carries out data transmit-receive in community separately.
Concrete, in the carrier aggregation system providing at the present embodiment, each aggregation cell only has a member carrier (CC).In the CC-1 and CC-2 of UE1 and UE2 difference access carrier paradigmatic system.
Due to service bandwidth demand, UE1 and UE2 need to access respectively new aggregation cell, and the aggregation cell that the UE1 of take access CC-2 is corresponding, UE2 access aggregation cell corresponding to CC-3 are example, and network side is that UE1 and UE2 configure respectively/activate carrier wave CC-2 and CC-3.According to the principle of independent allocation C-RNTI, UE1 receives in configuration/activation signaling that network side sends and carry the C-RNTI-2 distributing for UE1 on CC2, UE2 receives in configuration/activation signaling that network side sends and carry the C-RNTI-3 distributing for UE2 on CC3, meanwhile, in configuration/activation signaling, also carry frequency point information or the frequency point information index of polymerization carrier wave.
User terminal for a plurality of aggregation cell of access likely need to switch between aggregation cell, and this handoff procedure as shown in Figure 7, comprises the following steps:
Concrete, in this carrier aggregation system, in each community, only have a member carrier.UE, in carrier aggregation state, is linked on CC-1 and CC-2.UE detects PDCCH according to the C-RNTI-1 distributing and C-RNTI-2, and in PDCCH being detected, during the identification information identical with C-RNTI-1 or C-RNTI-2, UE carries out data transmit-receive according to DCI identical with this identification information in PDCCH.
In the present embodiment, the CC-2 of take is constant, CC-1 switches to CC-3 and is introduced as example.Now, need between CC-1, CC-2 and CC-2, CC-3, switch, can after switching, first access a CC under target eNB, reactivation another one CC also can be switched on two CC under target eNB simultaneously.
For the user terminal after configuration/activation polymerization carrier wave, consider can carry out carrier aggregation community the frequency spacing of corresponding carrier wave larger, the difference of time adjustment amount in the time of may causing UE to access in different districts, therefore, UE is being used these carrier waves to adopt carrier aggregation to carry out before data transmit-receive, need to carry out respectively random access to obtain time adjustment information.The process of the aggregation cell that the random access of UE is new as shown in Figure 8, comprises the following steps:
In the present embodiment, only have a CC in each aggregation cell, it is upper that UE is initially linked into CC-1, and distributed C-RNTI-1.In follow-up carrier activation/configuration signal, activated carrier wave CC-2 and CC-3, and corresponding sign C-RNTI-2 and the C-RNTI-3 of having distributed.
Concrete, UE is initiating random access procedure on carrier wave CC-2 and CC-3 simultaneously, or initiating random access procedure on carrier wave CC-2 and CC-3 successively.
The process of the aggregation cell new from the random access of UE in a upper embodiment is different, before UE sends access request to new aggregation cell, network may not be that CC-2 and CC-3 distribute RNTI sign, now, the process of the aggregation cell that the random access of UE is new as shown in Figure 9, comprises the following steps:
In embodiments of the invention, in carrier aggregation system, the C-RNTI of UE distributes as shown in figure 10, and different UEs is used independently C-RNTI resource in each carrier aggregation subdistrict.Take UE1 as example, and carrier aggregation, on community 1 and community 2, has been distributed 0009 and 0011 C-RNTI sign separately.
By the method that adopts embodiments of the invention to provide, each aggregation cell for user terminal access, according to the access request of described user terminal, be that described user terminal distributes Radio Network Temporary Identifier RNTI independently respectively, thereby make the RNTI that each aggregation cell can be user terminal independent allocation according to this aggregation cell accurately identify user terminal, carry out the operation such as scheduling, data transmit-receive of user terminal.
Embodiments of the invention provide RNTI assigned unit in a kind of carrier aggregation system, as shown in figure 11, comprising:
Sign allocation units 11, for each aggregation cell for user terminal access, are that described user terminal distributes Radio Network Temporary Identifier RNTI according to the access request of described user terminal respectively independently;
Sign is used unit 12, for being that the RNTI that described user terminal distributes carries out user terminal identification, scheduling and data transmit-receive according to described sign allocation units.
Optionally, described sign allocation units 11 comprise:
Configuration/activation subelement 111, for working as the random access carrier paradigmatic system Zhong of described user terminal community, and when described user terminal need to access new polymerizable community, for described user terminal configures/activate the member carrier of described new polymerizable community, and in the configuration/activation signaling sending to described user terminal, carry the RNTI distributing into described user terminal;
Sign is determined subelement 112, for when described user terminal accesses described new polymerizable community at random, for described user terminal distributes, is different from the interim RNTI that new aggregation cell has been distributed RNTI; After the random access of described user terminal described new polymerizable community success, the RNTI carrying is defined as to the RNTI sign of described user terminal in described new polymerizable community in described configuration/activation signaling.
Optionally, described configuration/activation subelement 111 also for: when the random access carrier paradigmatic system Zhong of described user terminal community, and when described user terminal need to access new polymerizable community, for described user terminal configures/activate the member carrier of described new polymerizable community;
Described sign determine subelement 112 also for: when the described new polymerizable community of the random access of described user terminal, for described user terminal distributes, be different from the interim RNTI that new aggregation cell has been distributed RNTI; After the random access of described user terminal described new polymerizable community success, described interim RNTI is defined as to the RNTI sign of described user terminal in described new polymerizable community.
Optionally, as shown in figure 12, described sign allocation units comprise:
Described RNTI is specially C-RNTI, SPS-RNTI, TPC-PUSCH-RNTI and TPC-PUCCH-RNTI.
The C-RNTI that described T-C-RNTI Yu Zhe has distributed community is different.
Described TPC-PUSCH-RNTI is different with the RNTI that TPC-PUCCH-RNTI Yu Zhe community has been distributed.
Embodiments of the invention also provide a kind of user terminal, comprising:
Data transmit-receive unit is that C-RNTI and/or the SPS-RNTI that described user terminal distributes carries out data transmit-receive for use described aggregation cell in aggregation cell;
Power control unit is that TPC-PUSCH-RNTI and the TPC-PUCCH-RNTI that described user terminal distributes carries out through-put power control for using described aggregation cell.
By the equipment that adopts embodiments of the invention to provide, each aggregation cell for user terminal access, according to the access request of described user terminal, be that described user terminal distributes Radio Network Temporary Identifier RNTI independently respectively, thereby make the RNTI that each aggregation cell can be user terminal independent allocation according to this aggregation cell accurately identify user terminal, carry out the operation such as scheduling, data transmit-receive of user terminal.
Through the above description of the embodiments, those skilled in the art can be well understood to the mode that the present invention can add essential general hardware platform by software and realize, and can certainly pass through hardware, but in a lot of situation, the former is better execution mode.Understanding based on such, the part that technical scheme of the present invention contributes to prior art in essence in other words can embody with the form of software product, this computer software product is stored in a storage medium, comprise that some instructions are with so that a computer equipment (can be personal computer, server, or the network equipment etc.) carry out the method described in each embodiment of the present invention.
It will be appreciated by those skilled in the art that accompanying drawing is the schematic diagram of a preferred embodiment, 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 in embodiment can be distributed in the device of embodiment according to embodiment description, also can carry out respective change and be arranged in the one or more devices that are different from the present embodiment.The module of above-described embodiment can be merged into a module, also can further split into a plurality of submodules.
The invention described above embodiment sequence number, just to describing, does not represent the quality of embodiment.
Disclosed is above only several specific embodiment 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 (11)
1. the method that in carrier aggregation system, RNTI distributes, is characterized in that, comprising:
Each aggregation cell for user terminal access, according to the access request of described user terminal, be that described user terminal distributes Radio Network Temporary Identifier RNTI independently respectively, and carry out user terminal identification, scheduling and data transmit-receive according to the RNTI distributing for described user terminal;
Wherein, described each aggregation cell for user terminal access, comprises for described user terminal distributes Radio Network Temporary Identifier RNTI independently according to the access request of described user terminal respectively:
When the random access carrier paradigmatic system Zhong of described user terminal community, and when described user terminal need to access new polymerizable community, for described user terminal configures/activate the member carrier of described new polymerizable community, and in the configuration/activation signaling sending to described user terminal, carry the RNTI distributing into described user terminal; When the described new polymerizable community of the random access of described user terminal, for distributing, described user terminal is different from the interim RNTI that new aggregation cell has been distributed RNTI; After the random access of described user terminal described new polymerizable community success, the RNTI carrying is defined as to the RNTI sign of described user terminal in described new polymerizable community in described configuration/activation signaling; Or,
When the random access carrier paradigmatic system Zhong of described user terminal community, and described user terminal be need to access new polymerizable community time, for described user terminal configures/activate the member carrier of described new polymerizable community; When the described new polymerizable community of the random access of described user terminal, for distributing, described user terminal is different from the interim RNTI that new aggregation cell has been distributed RNTI; After the random access of described user terminal described new polymerizable community success, described interim RNTI is defined as to the RNTI sign of described user terminal in described new polymerizable community.
2. the method for claim 1, is characterized in that, described each aggregation cell for user terminal access also comprises for described user terminal distributes Radio Network Temporary Identifier RNTI independently according to the access request of described user terminal respectively:
When described user terminal switches from aggregation cell, source to target polymerization community, aggregation cell, described source sends handover request message to described target polymerization community;
When the handover request of described user terminal is agreed in described target polymerization community, described target polymerization community sends handover request ack message to aggregation cell, described source, in described handover request ack message, carrying described target polymerization community is the RNTI information that described user terminal distributes.
3. the method as described in any one in claim 1-2, it is characterized in that, described RNTI is specially community-Radio Network Temporary Identifier C-RNTI, semi-continuous scheduling-Radio Network Temporary Identifier SPS-RNTI, through-put power control-Physical Uplink Shared Channel-Radio Network Temporary Identifier TPC-PUSCH-RNTI and through-put power control-Physical Uplink Control Channel-Radio Network Temporary Identifier TPC-PUCCH-RNTI.
4. method as claimed in claim 3, is characterized in that, the C-RNTI that the T-C-RNTI Yu Zhe community of this cell allocation has been distributed is different.
5. method as claimed in claim 3, is characterized in that, described TPC-PUSCH-RNTI is different with the RNTI that TPC-PUCCH-RNTI Yu Zhe community has been distributed.
6. the method for claim 1, is characterized in that, for each aggregation cell of user terminal access, is, after described user terminal distributes Radio Network Temporary Identifier RNTI, also to comprise independently respectively according to the access request of described user terminal:
It is that C-RNTI and/or the SPS-RNTI that described user terminal distributes carries out data transmit-receive that described user terminal is used described aggregation cell in aggregation cell, and using described aggregation cell is that TPC-PUSCH-RNTI and the TPC-PUCCH-RNTI that described user terminal distributes carries out through-put power control.
7. a RNTI assigned unit in carrier aggregation system, is characterized in that, comprising:
Sign allocation units, for each aggregation cell for user terminal access, are that described user terminal distributes Radio Network Temporary Identifier RNTI according to the access request of described user terminal respectively independently;
Sign is used unit, for being that the RNTI that described user terminal distributes carries out user terminal identification, scheduling and data transmit-receive according to described sign allocation units;
Wherein, described sign allocation units comprise:
Configuration/activation subelement, for working as the random access carrier paradigmatic system Zhong of described user terminal community, and when described user terminal need to access new polymerizable community, for described user terminal configures/activate the member carrier of described new polymerizable community, and in the configuration/activation signaling sending to described user terminal, carry the RNTI distributing into described user terminal;
Sign is determined subelement, for when described user terminal accesses described new polymerizable community at random, for described user terminal distributes, is different from the interim RNTI that new aggregation cell has been distributed RNTI; After the random access of described user terminal described new polymerizable community success, the RNTI carrying is defined as to the RNTI sign of described user terminal in described new polymerizable community in described configuration/activation signaling;
Described configuration/activation subelement also for: when the random access carrier paradigmatic system Zhong of described user terminal community, and when described user terminal need to access new polymerizable community, for described user terminal configures/activate the member carrier of described new polymerizable community;
Described sign determine subelement also for: when the described new polymerizable community of the random access of described user terminal, for described user terminal distributes, be different from the interim RNTI that new aggregation cell has been distributed RNTI; After the random access of described user terminal described new polymerizable community success, described interim RNTI is defined as to the RNTI sign of described user terminal in described new polymerizable community.
8. device as claimed in claim 7, is characterized in that, described sign allocation units also comprise:
Handover request subelement, for when described user terminal switches from aggregation cell, source to target polymerization community, sends handover request message to described target polymerization community;
Handoff response subelement, for when the handover request of described user terminal is agreed in described target polymerization community, to aggregation cell, described source, send handover request ack message, in described handover request ack message, carrying described target polymerization community is the RNTI information that described user terminal distributes.
9. the device as described in any one in claim 7-8, is characterized in that, described RNTI is specially C-RNTI, SPS-RNTI, TPC-PUSCH-RNTI and TPC-PUCCH-RNTI.
10. device as claimed in claim 9, is characterized in that, the C-RNTI that the T-C-RNTI Yu Zhe community of this cell allocation has been distributed is different.
11. devices as claimed in claim 9, is characterized in that, described TPC-PUSCH-RNTI is different with the RNTI that TPC-PUCCH-RNTI Yu Zhe community has been distributed.
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