CN101998550A - 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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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 RNTI distributes in a kind of carrier aggregation system.
Background technology
LTE (Long Term Evolution, Long Term Evolution) in the system, by PDCCH (PhysicalDownlink Control Channel, Physical Downlink Control Channel) resource scheduling information of transmission uplink downlink, by RNTI (Radio Network Temporary Identifier, Radio Network Temporary Identifier) distinguishes the kind that PDCCH goes up schedule information, 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 etc. with user data.For example, the corresponding paging information of P-RNTI, the corresponding system information of SI-RNTI, UE (the User Equipment on corresponding PDSCH of C-RNTI and the PUSCH, user terminal) information, the power control information on corresponding PUCCH of TPC-PUSCH-RNTI and TPC-PUCCH-RNTI and the PUSCH.
Wherein, C-RNTI is corresponding one by one with UE, is used for being in one of sub-district unique identification the UE of RRC (Radio Resource Control, Radio Resource control) connection status.When UE detects the C-RNTI corresponding with it on PDCCH, UE will receive or send data on the resource location of the DCI of this C-RNTI correspondence (DownlinkControl Information, Downlink Control Information) indication or association.
When UE did 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.In case the access at random of UE success, 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 that is in the RRC idle condition may further comprise the steps by the C-RNTI that inserts acquisition self at random based on competition:
Step 101, UE sends random access leader sequence preamble to network side.
Step 102, network side are to the Msg2 response message of UE transmission random access leader sequence, 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), is used to inform that the identity of network UE is with the solution that is at war with.
Step 104, network side promptly competes solving message to the response that UE sends Msg3 message.If solving, competition comprises UE competition solution ID (Identification in the message, sign), and the UE that is comprised competition solves ID and is complementary with the CCCH SDU that UE carries in Msg3, and then UE thinks and completes successfully access at random, and T-C-RNTI is set to the C-RNTI of UE.
In the 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 carry out the base station switching, if exist X2 to connect between the base station, then can finish handoff procedure by X2 interface; If eNB does not have X2 interface between (base station), then can finish by the S1 interface.
The process of finishing switching by X2 interface specifically may further comprise the steps as shown in Figure 3:
(0) source eNB judges that based on measurement report and RRM (Radio Resource Management, RRM) information that UE reports UE need switch.
(1) source eNB sends handoff request message to target eNB, carries UE in the handoff request information and switches the preparation information necessary to target eNB.
(2) if switching the employed resource of UE goes through in target eNB, Target cell will dispose corresponding resource for this UE so, and send handoff request Ack message to source eNB.Handoff request Ack message comprises UE required parameter information when target eNB is switched, and comprises that target eNB is the C-RNTI that UE distributes.
(3) source eNB sends switching command information to UE after receiving the handoff request Ack message that target eNB sends, and indication UE switches to target eNB.Source eNB comprises the content of target eNB in the handoff request Ack message that source eNB sends in the switching command that UE sends.
Receive after the switching command that (4) the UE execution is synchronous with target eNB.If in switching command dispensing special-purpose RACH preamble, then use uncontested access process at random to insert Target cell, if there is not the RACH preamble of dispensing special use, use then that access process inserts Target cell based on competing at random.
(5) after UE successfully inserts Target cell, UE sends to switch and finishes (handover complete) message, finishes to the switching flow of target eNB indication UE.To use target eNB to receive down dispatch information behind the UE target approach sub-district for the C-RNTI of its distribution.
The process of finishing switching by S 1 interface as shown in Figure 4, the reciprocal process of source eNB and target eNB is by MME (Mobility Management Enetity, Mobility Management Entity) realizes, and after switching flow is finished, send switching by target eNB to MME and finish notification message, because overall process and the similar process of finishing switching by X2 interface do not repeat them here.
After UE obtains the C-RNTI of self, if in normal data transmit-receive process, detected the C-RNTI of oneself on PDCCH, then the schedule information of carrying among the DCI according to this C-RNTI correspondence is in the reception or the transmission of the enterprising line data of corresponding video resource.
The LTE system can also distribute 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, only is to use the UE of semi-continuous scheduling mode just to be 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 the handoff procedure, target eNB is distributed corresponding SPS-RNTI for UE in handoff request Ack message.When UE detects the SPS-RNTI of self on PDCCH, according to the indication activation of the corresponding DCI content of SPS-RNTI or deexcitation system SPS resource for its distribution.
The 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), be used for UE is carried out through-put power control.A plurality of UE can use identical TPC-PUSCH-RNTI and TPC-PUCCH-RNTI to carry out through-put power control, and perhaps using independently separately, TPC-PUSCH-RNTI and TPC-PUCCH-RNTI carry out through-put power control.When UE detects the TPC-PUSCH-RNTI of indication and TPC-PUCCH-RNTI on PDCCH, the through-put power on PUSCH and the PUCCH is controlled according to the indication of TPC-PUSCH-RNTI and the corresponding DCI content of TPC-PUCCH-RNTI.
But in the LTE system, the UE synchronization can only be an enterprising line data transmitting-receiving of carrier wave.In order to support wideer 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 carry out the reception and the transmission of data simultaneously on a plurality of carrier waves of a plurality of sub-districts correspondence.At network side, because each can carry out having only an Independent Carrier Wave in the sub-district of carrier aggregation, promptly can independently carry out the carrier wave that data are received/sent out, therefore, as the UE that adopts carrier aggregation simultaneously and during a plurality of sub-district reception/transmission data that can carry out carrier aggregation, UE can be considered as a plurality of carrier waves to a plurality of sub-districts and safeguard.
Support the UE of carrier aggregation, at first be linked in the sub-district that network side disposes or activate other sub-districts that can carry out the carrier aggregation operation by dedicated signaling for this UE then by random access procedure.Configuration and activation can be a process, also can be two processes separately: dispose earlier and then activate.In layoutprocedure, network side is by the configuration parameter of other sub-districts of dedicated signaling notice UE, for example the carrier frequency point information of other sub-districts etc.
But, also be not provided as the method that UE distributes C-RNTI in existing LTE-A system: in the LTE system, UE under the connection status only is linked into a sub-district, therefore just can carry out UE sign, scheduling and data transmit-receive exactly for UE distributes unique RNTI in this sub-district.And in the LTE-A system, because the introducing of carrier aggregation characteristic, the UE that carries out carrier aggregation under the connection status is linked in a plurality of sub-districts, for a plurality of aggregation cell can both accurately be discerned UE, and carry out UE sign, scheduling and data transmit-receive, a plurality of aggregation cell need be distributed new RNTI for UE, but, in the prior art, first sub-district of having only UE to insert at random is that UE has distributed RNTI, therefore, the method for the distribution UE sign of single sub-district can't be applicable in the carrier aggregation system in the existing LTE system.
Summary of the invention
The invention provides the method and apparatus that RNTI distributes in a kind of carrier aggregation system, to solve the problem that UE distributes C-RNTI in the LTE-A system.
The invention provides the method that RNTI distributes in a kind of carrier aggregation system, comprising:
Each aggregation cell for the user terminal access, access request according to described user terminal is that described user terminal distributes Radio Network Temporary Identifier RNTI independently respectively, and carries out user terminal identification, scheduling and data transmit-receive according to the RNTI that distributes for described user terminal.
Described each aggregation cell that inserts for user terminal, the access request according to described user terminal comprises for described user terminal distributes Radio Network Temporary Identifier RNTI independently respectively:
When the described user terminal sub-district in the access carrier paradigmatic system at random, and when described user terminal need insert new polymerizable sub-district, be the member carrier of the described new polymerizable sub-district of described user terminal configuration/activation, and in configuration/the activations signaling that sends to described user terminal, carrying RNTI into described user terminal distribution;
When described user terminal inserts described new polymerizable sub-district at random,, described user terminal is different from the interim RNTI that new aggregation cell has been distributed RNTI for distributing; After described user terminal inserted the success of described new polymerizable sub-district at random, the RNTI that the RNTI that carries in described configuration/activations signaling in described new polymerizable sub-district is defined as described user terminal identified.
Described each aggregation cell that inserts for user terminal, the access request according to described user terminal comprises for described user terminal distributes Radio Network Temporary Identifier RNTI independently respectively:
When the described user terminal sub-district in the access carrier paradigmatic system at random, and described user terminal be need insert new polymerizable sub-district the time, is the member carrier of the described new polymerizable sub-district of described user terminal configuration/activation;
When described user terminal inserts described new polymerizable sub-district at random,, described user terminal is different from the interim RNTI that new aggregation cell has been distributed RNTI for distributing; After described user terminal inserted the success of described new polymerizable sub-district at random, the RNTI that will described interim RNTI in described new polymerizable sub-district be defined as described user terminal identified.
Described each aggregation cell that inserts for user terminal, the access request according to described user terminal comprises for described user terminal distributes Radio Network Temporary Identifier RNTI independently respectively:
When described user terminal from the source aggregation cell when switch the target polymerization sub-district, described source aggregation cell sends handoff request message to described target polymerization sub-district;
When the handoff request of described user terminal is agreed in described target polymerization sub-district, described target polymerization sub-district sends handover request ack message to described source aggregation cell, and carrying described target polymerization sub-district in the described handover request ack message is the RNTI information that described user terminal distributes.
Described RNTI is specially C-RNTI, SPS-RNTI, TPC-PUSCH-RNTI and TPC-PUCCH-RNTI.
Described T-C-RNTI is different with the C-RNTI that this sub-district has been distributed.
Described TPC-PUSCH-RNTI and TPC-PUCCH-RNTI are different with the RNTI that this sub-district has been distributed.
Each aggregation cell that inserts for user terminal be after the described user terminal distribution Radio Network Temporary Identifier RNTI according to the access request of described user terminal respectively independently, also comprises:
Described user terminal uses described aggregation cell in aggregation cell be that C-RNTI and/or the SPS-RNTI that described user terminal distributes carries out data transmit-receive, 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.
RNTI assigned unit in a kind of carrier aggregation system comprises:
The sign allocation units are used for each aggregation cell for the user terminal access, and the access request according to described user terminal is that described user terminal distributes Radio Network Temporary Identifier RNTI independently respectively;
Sign is used the unit, and being used for according to described sign allocation units is that the RNTI that described user terminal distributes carries out user terminal identification, scheduling and data transmit-receive.
Described sign allocation units comprise:
Configuration/activation subelement, be used for working as the described user terminal sub-district of access carrier paradigmatic system at random, and when described user terminal need insert new polymerizable sub-district, be the member carrier of the described new polymerizable sub-district of described user terminal configuration/activation, and in configuration/the activations signaling that sends to described user terminal, carrying RNTI into described user terminal distribution;
Sign is determined subelement, is used for when described user terminal inserts described new polymerizable sub-district at random, for described user terminal distribution is different from the interim RNTI that new aggregation cell has been distributed RNTI; After described user terminal inserted the success of described new polymerizable sub-district at random, the RNTI that the RNTI that carries in described configuration/activations signaling in described new polymerizable sub-district is defined as described user terminal identified.
Described configuration/activation subelement also is used for: when the described user terminal sub-district of access carrier paradigmatic system at random, and when described user terminal need insert new polymerizable sub-district, be the member carrier of the described new polymerizable sub-district of described user terminal configuration/activation;
Described sign determines that subelement also is used for: when described user terminal inserts described new polymerizable sub-district at random, be different from the interim RNTI that new aggregation cell has been distributed RNTI for described user terminal distributes; After described user terminal inserted the success of described new polymerizable sub-district at random, the RNTI that will described interim RNTI in described new polymerizable sub-district be defined as described user terminal identified.
Described sign allocation units comprise:
The handoff request subelement, be used for when described user terminal from the source aggregation cell when switch the target polymerization sub-district, send handoff request message to described target polymerization sub-district;
The handoff response subelement, be used for when the handoff request of described user terminal is agreed in described target polymerization sub-district, send handover request ack message to described source aggregation cell, carrying described target polymerization sub-district in the described handover request ack message is the RNTI information that described user terminal distributes.
Described RNTI is specially C-RNTI, SPS-RNTI, TPC-PUSCH-RNTI and TPC-PUCCH-RNTI.
Described T-C-RNTI is different with the C-RNTI that this sub-district has been distributed.
Described TPC-PUSCH-RNTI and TPC-PUCCH-RNTI are different with the RNTI that this sub-district has been distributed.
A kind of user terminal comprises:
The data transmit-receive unit, being used for using described aggregation cell in aggregation cell is that C-RNTI and/or the SPS-RNTI that described user terminal distributes carries out data transmit-receive;
Power control unit, being used to use described aggregation cell is that TPC-PUSCH-RNTI and the TPC-PUCCH-RNTI that described user terminal distributes carries out through-put power control.
Compared with prior art, the present invention has the following advantages at least:
Among the present invention, each aggregation cell for the user terminal access, access request according to described user terminal is that described user terminal distributes Radio Network Temporary Identifier RNTI independently respectively, thereby making each aggregation cell can be that the RNTI of user terminal independent allocation accurately discerns user terminal according to this aggregation cell, carries out the operation such as scheduling, data transmit-receive of user terminal.
Description of drawings
In order to be illustrated more clearly in embodiments of the invention or technical scheme of the prior art, to do to introduce simply to the accompanying drawing of required use in embodiments of the invention or the description of the Prior Art below, apparently, accompanying drawing in describing below only is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is in the UE of RRC idle condition by the schematic flow sheet that inserts the C-RNTI that obtains self at random based on competition in the prior art;
Fig. 2 is the LTE network architecture that UE switches in the prior art;
Fig. 3 is a process schematic diagram of finishing switching in the prior art by X2 interface;
Fig. 4 is a process schematic diagram of finishing switching in the prior art by the S1 interface;
Fig. 5 is the schematic flow sheet of the method that RNTI distributes in the aggregation cell that provides of embodiments of the invention;
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 process schematic diagram that UE that embodiments of the invention provide inserts new aggregation cell at random;
Fig. 9 is another process schematic diagram that UE that embodiments of the invention provide inserts new aggregation cell at random;
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 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 UE that inserts at single sub-district in the LTE system carries out RNTI and distributes, and carry out UE according to the RNTI that distributes and discern, scheduling and data transmit-receive, but, introduced aggregation cell in the LTE-A system, be that UE can insert a plurality of sub-districts simultaneously, at this moment, because single sub-district RNTI that UE obtained when having only initial access network, can't adapt to the requirement of aggregation cell in the LTE-A system, at this problem, embodiments of the invention provide the RNTI distribution method of UE in a kind of aggregation cell, and core concept is: for each aggregation cell of UE access, carry out UE identification respectively independently for UE distributes RNTI, and according to the RNTI that distributes for UE, scheduling and data transmit-receive.
Embodiments of the invention provide the method that RNTI distributes in a kind of aggregation cell, as shown in Figure 5, may further comprise the steps:
Step 501, for each aggregation cell that user terminal inserts, the access request according to described user terminal is that described user terminal distributes Radio Network Temporary Identifier RNTI independently respectively;
Step 502 is carried out user terminal identification, scheduling and data transmit-receive according to the RNTI that distributes for described user terminal.
Wherein, for each aggregation cell that user terminal inserts, the access request according to described user terminal comprises for described user terminal distributes Radio Network Temporary Identifier RNTI independently respectively:
When the described user terminal sub-district in the access carrier paradigmatic system at random, and when described user terminal need insert new polymerizable sub-district, be the member carrier of the described new polymerizable sub-district of described user terminal configuration/activation, and in configuration/the activations signaling that sends to described user terminal, carrying RNTI into described user terminal distribution;
When described user terminal inserts described new polymerizable sub-district at random,, described user terminal is different from the interim RNTI that new aggregation cell has been distributed RNTI for distributing; After described user terminal inserts the success of described new polymerizable sub-district at random, in described new polymerizable sub-district, described RNTI is defined as the RNTI sign of described user terminal.
For each aggregation cell that user terminal inserts, the access request according to described user terminal can also comprise for described user terminal distributes Radio Network Temporary Identifier RNTI independently respectively:
When the described user terminal sub-district in the access carrier paradigmatic system at random, and described user terminal be need insert new polymerizable sub-district the time, is the member carrier of the described new polymerizable sub-district of described user terminal configuration/activation;
When described user terminal inserts described new polymerizable sub-district at random,, described user terminal is different from the interim RNTI that new aggregation cell has been distributed RNTI for distributing; After described user terminal inserted the success of described new polymerizable sub-district at random, the RNTI that will described interim RNTI in described new polymerizable sub-district be defined as described user terminal identified.
Described each aggregation cell that inserts for user terminal, the access request according to described user terminal can also comprise for described user terminal distributes Radio Network Temporary Identifier RNTI independently respectively:
When described user terminal from the source aggregation cell when switch the target polymerization sub-district, described source aggregation cell sends handoff request message to described target polymerization sub-district;
When the handoff request of described user terminal is agreed in described target polymerization sub-district, described target polymerization sub-district sends handover request ack message to described source aggregation cell, and carrying described target polymerization sub-district in the described handover request ack message is the RNTI information that described user terminal distributes.
Described RNTI is specially C-RNTI, SPS-RNTI, TPC-PUSCH-RNTI and TPC-PUCCH-RNTI.
Described T-C-RNTI is different with the C-RNTI that this sub-district has been distributed.
Described TPC-PUSCH-RNTI and TPC-PUCCH-RNTI are different with the RNTI that this sub-district has been distributed.
Each aggregation cell that inserts for user terminal be after the described user terminal distribution Radio Network Temporary Identifier RNTI according to the access request of described user terminal respectively independently, can also comprise:
Described user terminal uses described aggregation cell in aggregation cell be that C-RNTI and/or the SPS-RNTI that described user terminal distributes carries out data transmit-receive, 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.
Introduce the method that RNTI distributes in the aggregation cell provided by the invention in detail below in conjunction with specific embodiment, wherein, RNTI is that example describes with the C-RNTI of user terminal.
At first introduce the process of carrying out the configuration/activation of polymerization carrier wave for user terminal, as shown in Figure 6, may further comprise the steps:
Step 601 among the CC-1 and CC-2 of UE1 and UE2 access carrier paradigmatic system, and is assigned with C-RNTI-1 respectively and C-RNTI-2 carries out data transmit-receive in sub-district separately.
Concrete, in the carrier aggregation system that present embodiment provides, each aggregation cell has only a member carrier (CC).Among the CC-1 and CC-2 of UE1 and UE2 difference access carrier paradigmatic system.
Because the service bandwidth demand, UE1 and UE2 need insert new aggregation cell respectively, are example with the aggregation cell of UE1 access CC-2 correspondence, the aggregation cell that UE2 inserts the CC-3 correspondence, and network side is that UE1 and UE2 dispose/activate carrier wave CC-2 and CC-3 respectively.Principle according to independent allocation C-RNTI, UE1 receives in configuration/activation signaling that network side sends and carry the C-RNTI-2 that distributes for UE1 on CC2, UE2 receives in configuration/activation signaling that network side sends and carry the C-RNTI-3 that distributes for UE2 on CC3, simultaneously, also carry the frequency point information or the frequency point information index of polymerization carrier wave in the configuration/activation signaling.
User terminal for inserting a plurality of aggregation cell might switch between aggregation cell, and this handoff procedure may further comprise the steps as shown in Figure 7:
Concrete, in this carrier aggregation system, have only a member carrier in each sub-district.UE is in the carrier aggregation state, is linked on CC-1 and the CC-2.UE detects PDCCH according to C-RNTI-1 that distributes and C-RNTI-2, and 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 among the PDCCH in detecting PDCCH.
In the present embodiment, it is that example is introduced that, CC-1 constant with CC-2 switches to CC-3.At this moment, need between CC-1, CC-2 and CC-2, CC-3, switch, can activate another one CC again, also can switch to simultaneously on two CC under the target eNB at a CC who inserts earlier after the switching under the target eNB.
For the user terminal behind the configuration/activation polymerization carrier wave, consider the sub-district that can carry out carrier aggregation between the frequency of corresponding carrier wave distance bigger, may cause the difference of UE time adjustment amount when different districts inserts, therefore, UE need insert respectively at random to obtain the time adjustment information before using these carrier waves to adopt carrier aggregation to carry out data transmit-receive.The process that UE inserts new aggregation cell at random may further comprise the steps as shown in Figure 8:
In the present embodiment, have only a CC in each aggregation cell, UE initially is linked on the CC-1, and distributes C-RNTI-1.In follow-up carrier wave 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 can initiate random access procedure simultaneously on carrier wave CC-2 and CC-3, perhaps initiate random access procedure successively on carrier wave CC-2 and CC-3.
Step 804 inserts successfully at random, and UE deletion T-C-RNTI-2 and T-C-RNTI-3 sign are also used the C-RNTI-2 and the C-RNTI-3 sign of distributing in the dedicated signaling, carry out data transmit-receive according to this C-RNTI-2 and C-RNTI-3 sign with corresponding aggregation cell.
The process that inserts new aggregation cell with UE among the last embodiment at random is different, UE is before new aggregation cell sends the request of access, and network may not be that CC-2 and CC-3 distribute the RNTI sign, at this moment, the process that UE inserts new aggregation cell at random may further comprise the steps as shown in Figure 9:
Step 904 inserts successfully at random, and UE is made as the C-RNTI sign of UE on carrier wave CC-2 and CC-3 with T-C-RNTI-1 and T-C-RNTI-2.
In the embodiments of the invention, the C-RNTI of UE distributes as shown in figure 10 in the carrier aggregation system, and different UEs is used independently C-RNTI resource in each carrier aggregation sub-district.With UE1 is example, and carrier aggregation has been distributed 0009 and 0011 C-RNTI sign separately on sub-district 1 and sub-district 2.
By the method that adopts embodiments of the invention to provide, each aggregation cell for the user terminal access, access request according to described user terminal is that described user terminal distributes Radio Network Temporary Identifier RNTI independently respectively, thereby making each aggregation cell can be that the RNTI of user terminal independent allocation accurately discerns user terminal according to this aggregation cell, carries 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 are used for each aggregation cell for the user terminal access, and the access request according to described user terminal is that described user terminal distributes Radio Network Temporary Identifier RNTI independently respectively;
Sign is used unit 12, and being used for according to described sign allocation units is that the RNTI that described user terminal distributes carries out user terminal identification, scheduling and data transmit-receive.
Optionally, described sign allocation units 11 comprise:
Configuration/activation subelement 111, be used for working as the described user terminal sub-district of access carrier paradigmatic system at random, and when described user terminal need insert new polymerizable sub-district, be the member carrier of the described new polymerizable sub-district of described user terminal configuration/activation, and in configuration/the activations signaling that sends to described user terminal, carrying RNTI into described user terminal distribution;
Sign is determined subelement 112, is used for when described user terminal inserts described new polymerizable sub-district at random, for described user terminal distribution is different from the interim RNTI that new aggregation cell has been distributed RNTI; After described user terminal inserted the success of described new polymerizable sub-district at random, the RNTI that the RNTI that carries in described configuration/activations signaling in described new polymerizable sub-district is defined as described user terminal identified.
Optionally, described configuration/activation subelement 111 also is used for: when the described user terminal sub-district of access carrier paradigmatic system at random, and when described user terminal need insert new polymerizable sub-district, be the member carrier of the described new polymerizable sub-district of described user terminal configuration/activation;
Described sign determines that subelement 112 also is used for: when described user terminal inserts described new polymerizable sub-district at random, be different from the interim RNTI that new aggregation cell has been distributed RNTI for described user terminal distributes; After described user terminal inserted the success of described new polymerizable sub-district at random, the RNTI that will described interim RNTI in described new polymerizable sub-district be defined as described user terminal identified.
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.
Described T-C-RNTI is different with the C-RNTI that this sub-district has been distributed.
Described TPC-PUSCH-RNTI and TPC-PUCCH-RNTI are different with the RNTI that this sub-district has been distributed.
Embodiments of the invention also provide a kind of user terminal, comprising:
The data transmit-receive unit, being used for using described aggregation cell in aggregation cell is that C-RNTI and/or the SPS-RNTI that described user terminal distributes carries out data transmit-receive;
Power control unit, being used to use described aggregation cell is that TPC-PUSCH-RNTI and the TPC-PUCCH-RNTI that described user terminal distributes carries out through-put power control.
By the equipment that adopts embodiments of the invention to provide, each aggregation cell for the user terminal access, access request according to described user terminal is that described user terminal distributes Radio Network Temporary Identifier RNTI independently respectively, thereby making each aggregation cell can be that the RNTI of user terminal independent allocation accurately discerns user terminal according to this aggregation cell, carries 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 present invention and can realize by the mode that software adds essential general hardware platform, can certainly pass through hardware, but the former is better execution mode under a lot of situation.Based on such understanding, 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 the storage medium, comprise that some instructions are with so that a computer equipment (can be a personal computer, server, the perhaps network equipment etc.) carry out the described method of 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, module in the 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 among the embodiment can be distributed in the device of embodiment according to the embodiment description, also can carry out respective change and be arranged in the one or more devices that are different from present embodiment.The module of the foregoing description can be merged into a module, also can further split into a plurality of submodules.
The invention described above embodiment sequence number is not represented the quality of embodiment just to description.
More than disclosed only be several specific embodiment of the present invention, still, the present invention is not limited thereto, any those skilled in the art can think variation all should fall into protection scope of the present invention.
Claims (16)
1. the method that RNTI distributes in the carrier aggregation system is characterized in that, comprising:
Each aggregation cell for the user terminal access, access request according to described user terminal is that described user terminal distributes Radio Network Temporary Identifier RNTI independently respectively, and carries out user terminal identification, scheduling and data transmit-receive according to the RNTI that distributes for described user terminal.
2. the method for claim 1 is characterized in that, described each aggregation cell that inserts for user terminal, and the access request according to described user terminal comprises for described user terminal distributes Radio Network Temporary Identifier RNTI independently respectively:
When the described user terminal sub-district in the access carrier paradigmatic system at random, and when described user terminal need insert new polymerizable sub-district, be the member carrier of the described new polymerizable sub-district of described user terminal configuration/activation, and in configuration/the activations signaling that sends to described user terminal, carrying RNTI into described user terminal distribution;
When described user terminal inserts described new polymerizable sub-district at random,, described user terminal is different from the interim RNTI that new aggregation cell has been distributed RNTI for distributing; After described user terminal inserted the success of described new polymerizable sub-district at random, the RNTI that the RNTI that carries in described configuration/activations signaling in described new polymerizable sub-district is defined as described user terminal identified.
3. the method for claim 1 is characterized in that, described each aggregation cell that inserts for user terminal, and the access request according to described user terminal comprises for described user terminal distributes Radio Network Temporary Identifier RNTI independently respectively:
When the described user terminal sub-district in the access carrier paradigmatic system at random, and described user terminal be need insert new polymerizable sub-district the time, is the member carrier of the described new polymerizable sub-district of described user terminal configuration/activation;
When described user terminal inserts described new polymerizable sub-district at random,, described user terminal is different from the interim RNTI that new aggregation cell has been distributed RNTI for distributing; After described user terminal inserted the success of described new polymerizable sub-district at random, the RNTI that will described interim RNTI in described new polymerizable sub-district be defined as described user terminal identified.
4. the method for claim 1 is characterized in that, described each aggregation cell that inserts for user terminal, and the access request according to described user terminal comprises for described user terminal distributes Radio Network Temporary Identifier RNTI independently respectively:
When described user terminal from the source aggregation cell when switch the target polymerization sub-district, described source aggregation cell sends handoff request message to described target polymerization sub-district;
When the handoff request of described user terminal is agreed in described target polymerization sub-district, described target polymerization sub-district sends handover request ack message to described source aggregation cell, and carrying described target polymerization sub-district in the described handover request ack message is the RNTI information that described user terminal distributes.
5. as each described method among the claim 1-4, it is characterized in that described RNTI is specially sub-district-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.
6. method as claimed in claim 5 is characterized in that, described T-C-RNTI is different with the C-RNTI that this sub-district has been distributed.
7. method as claimed in claim 5 is characterized in that, described TPC-PUSCH-RNTI and TPC-PUCCH-RNTI are different with the RNTI that this sub-district has been distributed.
8. the method for claim 1 is characterized in that, each aggregation cell that inserts for user terminal be after the described user terminal distribution Radio Network Temporary Identifier RNTI according to the access request of described user terminal respectively independently, also comprises:
Described user terminal uses described aggregation cell in aggregation cell be that C-RNTI and/or the SPS-RNTI that described user terminal distributes carries out data transmit-receive, 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.
9. RNTI assigned unit in the carrier aggregation system is characterized in that, comprising:
The sign allocation units are used for each aggregation cell for the user terminal access, and the access request according to described user terminal is that described user terminal distributes Radio Network Temporary Identifier RNTI independently respectively;
Sign is used the unit, and being used for according to described sign allocation units is that the RNTI that described user terminal distributes carries out user terminal identification, scheduling and data transmit-receive.
10. device as claimed in claim 9 is characterized in that, described sign allocation units comprise:
Configuration/activation subelement, be used for working as the described user terminal sub-district of access carrier paradigmatic system at random, and when described user terminal need insert new polymerizable sub-district, be the member carrier of the described new polymerizable sub-district of described user terminal configuration/activation, and in configuration/the activations signaling that sends to described user terminal, carrying RNTI into described user terminal distribution;
Sign is determined subelement, is used for when described user terminal inserts described new polymerizable sub-district at random, for described user terminal distribution is different from the interim RNTI that new aggregation cell has been distributed RNTI; After described user terminal inserted the success of described new polymerizable sub-district at random, the RNTI that the RNTI that carries in described configuration/activations signaling in described new polymerizable sub-district is defined as described user terminal identified.
11. device as claimed in claim 10 is characterized in that,
Described configuration/activation subelement also is used for: when the described user terminal sub-district of access carrier paradigmatic system at random, and when described user terminal need insert new polymerizable sub-district, be the member carrier of the described new polymerizable sub-district of described user terminal configuration/activation;
Described sign determines that subelement also is used for: when described user terminal inserts described new polymerizable sub-district at random, be different from the interim RNTI that new aggregation cell has been distributed RNTI for described user terminal distributes; After described user terminal inserted the success of described new polymerizable sub-district at random, the RNTI that will described interim RNTI in described new polymerizable sub-district be defined as described user terminal identified.
12. device as claimed in claim 9 is characterized in that, described sign allocation units comprise:
The handoff request subelement, be used for when described user terminal from the source aggregation cell when switch the target polymerization sub-district, send handoff request message to described target polymerization sub-district;
The handoff response subelement, be used for when the handoff request of described user terminal is agreed in described target polymerization sub-district, send handover request ack message to described source aggregation cell, carrying described target polymerization sub-district in the described handover request ack message is the RNTI information that described user terminal distributes.
13., it is characterized in that described RNTI is specially C-RNTI, SPS-RNTI, TPC-PUSCH-RNTI and TPC-PUCCH-RNTI as each described device among the claim 9-12.
14. device as claimed in claim 13 is characterized in that, described T-C-RNTI is different with the C-RNTI that this sub-district has been distributed.
15. device as claimed in claim 13 is characterized in that, described TPC-PUSCH-RNTI and TPC-PUCCH-RNTI are different with the RNTI that this sub-district has been distributed.
16. a user terminal is characterized in that, comprising:
The data transmit-receive unit, being used for using described aggregation cell in aggregation cell is that C-RNTI and/or the SPS-RNTI that described user terminal distributes carries out data transmit-receive;
Power control unit, being used to use described aggregation cell is that TPC-PUSCH-RNTI and the TPC-PUCCH-RNTI that described user terminal distributes carries out through-put power control.
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