CN102238747A

CN102238747A - Uplink physical control information transmitting method, base station and UE (user equipment)

Info

Publication number: CN102238747A
Application number: CN2010101627036A
Authority: CN
Inventors: 杨曾; 刘仁茂; 张应余; 梁永明; 丁铭
Original assignee: Sharp Corp
Current assignee: Sharp Corp
Priority date: 2010-04-30
Filing date: 2010-04-30
Publication date: 2011-11-09
Also published as: WO2011135916A1

Abstract

The invention discloses uplink physical control information transmitting method, a base station and UE (user equipment). The method comprises channel information feedback based on non-periodic PUSCH (physical uplink shared channel) and channel information feedback based on periodic PUCCH (physical uplink control channel). The base station activates the UE to receive one or more downlink SCCs (secondary component carriers). The base station notifies the UE of resources used for transmitting non-periodic uplink control information. The UE performs joint coding on CSIs (channel state indicators) of the downlink CCs (component carriers) including downlink SCCs and/or downlink PCC (primary component carriers) through the resources and then transmits to the base station. The base station performs downlink scheduling based on the CSIs. The UE periodically feeds back the CSIs of the downlink CCs to the base station so that the base station can track the CSI change of the downlink CCs. Through the adoption of the invention, challenges in the design of uplink physical control information transmitting method of the LTE (long term evolution) R-10 system can be coped with.

Description

Ascending physical signal control information transmission method, base station and subscriber equipment

Technical field

The present invention relates to the mobile communication technology field, particularly relate to transmission method and the relevant base station and the subscriber equipment of ascending physical signal control information in the LTE-Advanced that adopted the carrier wave aggregation technique and the 4G system.

Background technology

Based on 3GPP LTE (Long Term Evolution) version 8 (Release-8, R-8) have 3 kinds of ascending physical signal control channel information in the wireless communication system, be dispatch request (Scheduling Request, SR), the automatic request retransmission of down mixing (Hybrid AutomaticReQuest Retransmission, HARQ) feedback information (ACKnowledgement/NegativeACKnowledgement, ACK/NACK) and channel information indication (Channel StateIndicator, CSI) feedback.Wherein CSI feedback comprise the channel quality indication (Channel QualityIndicator, CQI), the pre-coding matrix indication (Precoding Matrix Indicator, PMI) and the order indication (Rank Indicator, RI).In LTE R-8, HAQR feedback can (Physical Uplink Control CHannel transmits on PUCCH) at the ascending physical signal control channel; CSI feedback can be on PUCCH cyclical transmission; CSI feedback and/or HAQR feedback also can (Physical Uplink Shared CHannel PUSCH) upward transmit at the ascending physical signal shared channel with data multiplex when data need to transmit with CSI feedback and/or HAQR feedback simultaneously; CSI feedback requires subscriber equipment when special channel information demand also can be arranged in the base station, and (User Equipment UE) carries out the aperiodicity transmission on the up PUSCH resource of base station assigns.

The multiplexing concrete grammar that on PUSCH, transmits of data and ascending physical signal control information (TS 36.212V8.7.0, " Evolved Universal Terrestrial Radio Access (E-UTRA) among the LTE R-8; Multiplexing and channel coding " method of 5.2.2.8 joint) as shown in Figure 9:

ACK/NACK information takies 4 DFT-SOFDM symbols at most, i.e. 4 row.

(note: because the information of DFT-SOFDMA is in the time domain input, so subcarrier among the last figure and fict subcarrier in frequency domain, and adopt virtual subcarrier, promptly be input to the signal of DFT)

ACK/NAK information

-ACK/NACK message maps is on the both sides of pilot tone, under begin mapping, as the data punching of figure relevant position.

ACK/NACK takies 4 SC-FDMA symbols at most among-one subframe.

-under the situation that transmits 2 bit ACK/NAK information, adopt scheme [3GPP R1-082086] with PCFICH similar (3,2) coding.

RI information

-RI and CQI encode respectively;

-under the situation of 2 bits, use (3,2) simple code

-RI bit is positioned in the adjacent row of ACK information, promptly with the position (whether no matter ACK information arranged, and the position of RI is identical) of pilot interval one row.

-rate-matched that data are punched.

CQI information

-CQI information is placed on the starting position of data resource, frequency domain after the first time domain.

The CRC of-employing 8 bits

-chnnel coding:

For " large " CQI information (surpassing the 10-14 bit), adopt the scheme of the PBCH convolution code+rate-matched identical with PDCCH.For " small " CQI information, adopt the block encoding mode of PUCCH.CQI/PMI information of transmitting among the PUSCH and the identical modulation system of The data among the PUSCH.Skew between the encoding rate of semi-static configuration data MCS and control information (A/N and CQI).

3GPP LTE-Advanced system (being called LTE R-10 again) has introduced carrier aggregation technology, that is: (Component Carrier, CC) polymerization is to support the up-downgoing transmission bandwidth greater than 20MHz for two or more component carriers.

Discussion through 58 meetings of 3GPP TSG RAN1, two kinds of down control channel structure (Way Forward on PDCCH forBandwidth Extension in LTE-A that optionally are used for the LTE-Advanced system have been kept, R1-093699, RAN1#58, Alcatel-Lucentet.al., August 2009).First kind is the non-carrier wave indicating structure of striding, be Physical Downlink Control Channel (the Physical Downlink Control CHannel on some component carriers, PDCCH) (Downlink Control Information DCI) only is used to refer to the resource allocation information of place carrier wave to the Downlink Control Information in; Second kind for striding the carrier wave indicating structure, and the PDCCH DCI on promptly some component carriers can be used to refer to the resource allocation information on place carrier wave and other component carriers.

Discussion (R1-10xxxx through 59 meetings of 3GPP TSG RAN1, Draft Report of3GPP TSG RAN WG1#59v0.2.0, RAN1#59,3GPP, November 2009), (Carrier Indicator Field CIF) is used for realizing striding the carrier wave indication, and promptly some bit status in this CIF territory are represented a CC will to introduce a carrier wave indication territory that is fixed as 3 bits among the DCI of above-mentioned second kind of down control channel structure.

In the standardisation process of 3GPP LTE R-10, at present and carrier aggregation (CarrierAggregation, CA) relevant conclusion has (3GPP RAN2, Report of 3GPP TSG RANWG2 meeting#69,3GPP, 2010):

Introducing principal component carrier wave among the-LTE R-10 (Primary Component Carrier, PCC)

Notion;

-up PCC and descending PCC are the UE configurations;

-up PCC is used for the ascending control information of transport layer 1;

-descending PCC can not be closed reception (deactivation);

The CC of-non-the PCC that configures be called as the component of degree n n carrier wave (Secondary ComponentCarrier, SCC);

-(Media Access Control, MAC) signaling is used to activate and close the downlink component carrier that configures in explicit medium access control.

In the standardisation process of LTE R-10, relevant with the CSI feedback at present conclusion has (FinalReport of 3GPP TSG RAN WG1#58bis v1.0.0,3GPP, 2009):

Periodically CSI reports and need support 5 descending CC:

On the proprietary up CC of-semi-static maps to a UE;

-report principle in accordance with the CQI/PMI/RI of LTE R-8, and:

Consider to reduce to report the method for expense, as adopt descending CC polling method

(cycling)；

Consider to support to increase the method for CSI payload.

In the standardisation process of 3GPP LTE R-10, relevant with the ACK/NACK feedback at present conclusion has (3GPP RAN1, Draft Report of 3GPP TSG RAN WG1#60v0.1.0,3GPP, 2010):

Following ACK/NACK multiplexing method will further be discussed;

-PUCCH form 1b, (Spreading Factor SF) narrows down to 2 or 1 to spreading factor;

-select (channel selection) based on the channel of PUCCH form 1a/1b;

-PUCCH form 2;

-Xin PUCCH signal or form (as based on DFT-S-OFDM);

A proprietary up CC of UE is configured to carry the PUCCHACK/NACK of this UE semi-staticly, SR and periodicity CSI.

Also have as draw a conclusion (3GPP RAN1, FinalReport of 3GPP TSG RAN WG1#58bis v1.0.0,3GPP, 2009) with above-mentioned standardization effort is closely-related:

Do not dispatch the design of the scene optimization ACK/NACK feedback of a plurality of descending CC simultaneously at a large amount of UE.

More than hypothesis is in most of times of explanation, and UE only uses single descending CC, just is scheduled occasionally to use a plurality of descending CC.

The CSI feedback collision can occur with the ACK/NACK feedback in LTE R-8, promptly needing simultaneously, (in same subframe) sends CSI and ACK/NACK, the processing method of LTE R-8 be with ACK/NACK be placed on the PUCCH form 2/2a/2b of transmission CSI reference signal (Reference Signal, RS) in realize both time transmission.In LTE R-10, consider the transmission of supporting a plurality of descending CC, the CSI feedback that needs will increase, this will increase the collision probability of CSI and ACK/NACK, and because the increase of ACK/NACK payload, original collision solution is no longer suitable, therefore needs the new ascending physical signal control information transmission method of design.

Adopt the method for periodic polls feedback CSI can reduce the expense that CSI feeds back, but for the UE of the single descending CC of main use, the CSI that the method for employing periodic polls is fed back some descending SCC of firm activation is disadvantageous for first scheduling.

Summary of the invention

Technical problem to be solved by this invention is that the challenge in the design of LTE R-10 system uplink physics control information transmission method has proposed some kinds of LTE Advanced system uplink physics control information transmission methods, and corresponding base station and subscriber equipment.

According to a kind of scheme of the present invention, a kind of ascending physical signal control information transmission method has been proposed, comprise step: the base station activation subscriber equipment is to the reception of one or more descending SCC; The used resource of base station notifying user equipment aperiodicity ascending control information transmission; Subscriber equipment is transferred to the base station will comprise the CSI combined coding of descending CC of descending SCC and/or descending PCC by described resource after; Descending scheduling is carried out based on described CSI in the base station; Subscriber equipment makes the base station can follow the tracks of the variation of the CSI of descending CC periodically to the CSI of the descending CC of base station feedback.

According to another kind of scheme of the present invention, a kind of base station has been proposed, comprising: Transmit-Receive Unit, excited users equipment are to the reception of one or more descending SCC, and notifying user equipment aperiodicity ascending control information transmits used resource; Resource allocation and scheduling unit carry out descending scheduling based on the CSI about down channel from the subscriber equipment feedback; Wherein, described Transmit-Receive Unit receives by the CSI of described resource from the descending CC that comprises descending SCC and/or descending PCC of described subscriber equipment transmission, and described resource allocation and scheduling unit carry out descending scheduling based on described CSI; And Transmit-Receive Unit reception subscriber equipment makes the base station can follow the tracks of the variation of the CSI of descending CC periodically to the CSI of the descending CC of base station feedback.

According to another kind of scheme of the present invention, a kind of subscriber equipment has been proposed, comprising: Transmit-Receive Unit, receive to activate the notice to the used resource of the notice of the reception of one or more descending SCC and the transmission of subscriber equipment aperiodicity ascending control information; The CSI acquiring unit obtains the CSI of the descending CC that comprises descending SCC and/or descending PCC; Coding unit will comprise the CSI combined coding of the descending CC of descending SCC and/or descending PCC; Wherein, the CSI of described Transmit-Receive Unit after with combined coding is transferred to the base station, and Transmit-Receive Unit makes the base station can follow the tracks of the variation of the CSI of descending CC periodically to the CSI of the descending CC of base station feedback after this.

Like this, the challenge in the above LTE R-10 system uplink physics control information transmission method design has proposed flexible and efficient solution.

Description of drawings

By below in conjunction with description of drawings the preferred embodiments of the present invention, will make above-mentioned and other purpose of the present invention, feature and advantage clearer, wherein:

Fig. 1 shows the structural representation according to base station and subscriber equipment in the communication system of the embodiment of the invention;

Fig. 2 shows a kind of flow chart that transmits the ascending physical signal control information transmission method that transmits with periodicity PUCCH/PUSCH in conjunction with aperiodicity PUSCH according to the embodiment of the invention;

Fig. 3 shows a kind of CSI polling mode according to the embodiment of the invention;

Fig. 4 shows the another kind of CSI polling mode according to the embodiment of the invention;

Fig. 5 shows a kind of descending CC packet mode according to the embodiment of the invention;

Fig. 6 shows the another kind of descending CC packet mode according to the embodiment of the invention;

Fig. 7 shows the method according to PDCCH amount of information among a kind of LTE of increasing R-10 of the embodiment of the invention;

Fig. 8 shows according to the embodiment of the invention a kind of and strides the implicit indicating means of CFI based on the CRC mask of PDCCH under the carrier dispatching;

Fig. 9 is a schematic diagram of describing data and the multiplexing concrete grammar that transmits of ascending physical signal control information among the LTE R-8 on PUSCH.

Embodiment

For clear detailed elaboration performing step of the present invention, provided some specific embodiments of the invention below, be applicable to wireless communication system, especially the LTE-Advanced cell mobile communication systems of supporting the carrier frequency polymerization technique.Need to prove, the invention is not restricted to these and use, but applicable to more other relevant wireless communication systems.

To a preferred embodiment of the present invention will be described in detail, having omitted in the description process is unnecessary details and function for the present invention with reference to the accompanying drawings, obscures to prevent that the understanding of the present invention from causing.

In the following description, a kind of method in conjunction with aperiodicity PUSCH transmission and periodicity PUCCH/PUSCH transmission is adopted in the transmission of the feedback of the CSI from UE to the base station.

Transmission means based on the CSI of aperiodicity PUSCH feedback is mainly used in following scene: for certain UE, just activated some descending CC, carried out descending scheduling for convenience on these descending CC, when need obtain the CSI of these CC; When the CSI of the descending CC that need obtain UE is in detail thought in other base stations.

Be mainly used in the obtaining of CSI of the outer descending CC of above scene based on the transmission means of the CSI of periodicity PUCCH/PUSCH feedback.

Embodiment 1:

In the present embodiment, the DCI of the PDCCH of scheduling aperiodicity PUSCH transmission only sends in descending PCC, the transmission of up CSI feedback comprises that they all carry out based on the transmission of aperiodicity PUSCH with based on the transmission of periodicity PUCCH/PUSCH in up PCC.

Fig. 1 shows the structural representation according to base station and subscriber equipment in the communication system of the embodiment of the invention.As known to persons skilled in the art, can also comprise more a plurality of subscriber equipmenies in the system of Fig. 1.Because the structure of these subscriber equipmenies is identical in fact with the structure of subscriber equipment shown in Figure 1, so no longer illustrate here.

In addition, show technical scheme of the present invention briefly, only show the associated components of base station and subscriber equipment among the present invention among Fig. 1, and omitted other conventional parts for clear.In the following description, also omitted description, with the influence of avoiding any unnecessary content to bring to conventional components.

As shown in Figure 1, the base station 100 according to the embodiment of the invention comprises Transmit-Receive Unit 104, control unit 101, resource allocation and scheduling unit 102 and memory cell 103.

Transmit-Receive Unit 104 in the base station 100 carries out the information transmit-receive operation with base station 200 under the control of control unit 101, for example, send information such as data or control signaling to base station 200, also from receiving from the data of base station or the feedback information such as CSI.

Memory cell 103 storage data or other information, for example configuration information, scramble sequence etc.

Resource allocation and scheduling unit 102 carry out resource allocation and scheduling under the control of control unit 104, for example distribution of PUCCH resource (comprise resource indication, information such as various time offset), dispose, reconfigure, operation such as release.

On the other hand, comprise Transmit-Receive Unit 205, CSI acquiring unit 201, coding unit 202, timer 2 03 and control unit 204 at subscriber equipment 200 of the present invention.

Describe the operating process of the said equipment in detail below in conjunction with accompanying drawing 2.

Be illustrated in figure 2 as a kind of ascending physical signal control information transmission method in conjunction with aperiodicity PUSCH transmission and periodicity PUCCH/PUSCH transmission.

Step 101: the base station activation subscriber equipment is to the reception of some descending SCC.

In having adopted the LTE R-10 system of carrier aggregation technology, except that descending PCC, subscriber equipment is all realized by the mode of base station activation (activation) the reception of remaining SCC.Concrete mode is: the base station sends activates signaling to subscriber equipment, activate corresponding each SCC has 1 bit to be used to indicate subscriber equipment whether will begin to receive the downstream transmission signals of this SCC in the signaling, subscriber equipment receives the downstream signal that activates after the signaling according to this SCC of state decision whether beginning to receive of the bit in the pairing activation signaling of each SCC.Though descending PCC need not activate, this patent generally is meant descending SCC overall of descending PCC and activation when mentioning (descending) CC of activation.

The Transmit-Receive Unit 104 of base station 100 is under the control of control unit 101, activate signaling by the layer 1 that is carried among the PDCCH, perhaps be carried on MAC Control Element (Control Element, CE) layer 2 in activates signaling, perhaps be carried on Physical Downlink Shared Channel (PhysicalDownlink Shared CHannel, PDSCH) layer 3 in activates signaling and (is called radio resource control signaling (Radio Resource Control, RRC)) begins to receive some unactivated descending SCC via descending PCC or other SCC notifying user equipment 200 that has activated signal again.Here, subscriber equipment is confirmed correctly to receive to activate signaling to the base station after receiving above-mentioned signaling, and this shows the reception that activates above-mentioned un-activation SCC.

Step 102: base station notifying user equipment ascending control information transmits used resource.

After the reception of 200 couples of above-mentioned un-activation SCC of excited users equipment, the resource allocation of base station 100 and scheduling unit 102 need obtain the CSI on these un-activations SCC for being implemented in the descending scheduling on these un-activations SCC.In order to obtain these CSI as early as possible, can use transmission based on aperiodicity PUSCH.The base station can be by the shared ascending resource of these aperiodicity of variety of way notifying user equipment PUSCH: the Transmit-Receive Unit 104 such as base station 100 can be by being embedded in these resource indication information in the above-mentioned activation signaling, and notifying user equipment is transmitted the resource of up CSI when activating SCC; The Transmit-Receive Unit 104 of base station 100 also can confirm UE correctly receive activate signaling after, be notified to UE by extra layer 1, layer 2 or layer 3 means of signaling via PCC or the SCC that activated.An example of extra here layer 1 signaling is uplink assignment (UL Grant) control information that has defined among the LTE R-8PDCCH DCI, needs the CQI request position 1 with this DCI here.

Step 103: be transferred to the base station behind the CSI combined coding of subscriber equipment with some descending CC.

The CSI acquiring unit of subscriber equipment 200 obtains the used resource of corresponding aperiodicity PUSCH transmission according to the signaling that receives.Then, the coding unit 202 of subscriber equipment 200 can according to the agreement of base station 100, with the CSI combined coding of some descending CC and after adding CRC, or after encoding respectively and adding corresponding C RC, be transferred to base station 100 by Transmit-Receive Unit 205.Here the CSI of some descending CC can be the CSI of all current CC that activated of comprising PCC, perhaps only comprises the last CSI that activates new those SCC that activate in the signaling.In a kind of in the back situation, the CSI feedback based on aperiodicity PUSCH of SCC that has activated before the last time activation signaling arrives or PCC then be carried out after need feeding back at the CSI of new those SCC that activate and finishing again.

Step 104: descending scheduling is carried out in the base station, and subscriber equipment periodically feeds back CSI.

Behind the CSI that receives subscriber equipment 200 feedbacks, the resource allocation of base station 200 and scheduling unit 102 can carry out descending scheduling on new those SCC that activate.For resource allocation and scheduling unit 102 variation of the CSI of tracing customer equipment on descending CC always that makes the base station, thereby correspondingly make correct scheduling decision, need subscriber equipment 200 periodically the CSI of feeding back downlink CC give base station 100.

Periodic CSI feedback realizes by periodic PUCCH in LTE R-8, its employed PUCCH resource (comprises the Resource Block indication, the cyclically shifted sequences indication, information such as cycle and various time offset) pre-configured by Transmit-Receive Unit 104 by the RRC signaling to subscriber equipmenies 200 by the resource allocation and the scheduling unit 102 of base station 100.Owing to introduced a plurality of descending CC,, need to increase the resource of the PUCCH that distributes to subscriber equipment among the LTE R-10 for the CSI that realizes each descending CC feedback at the enterprising line period of up PCC.Consider that each descending CC can regard a subscriber equipment among the LTE R-8 as, therefore can be the periodicity PUCCH resource that defines among the subscriber equipment additional configuration N part LTE R-8 that has activated N descending SCC.For the CSI that realizes different descending CC feeds back in the mode of periodic polls, the N part LTE R-8PUCCH resource of additional allocation and the cycle of the PUCCH resource of original corresponding descending PCC, being provided with of time offset need satisfy similar requirement (with subscriber equipment two descending CC being arranged is example) as Fig. 3 or polling mode shown in Figure 4.Notice that the polling mode among Fig. 3 and Fig. 4 is an example, transmit in the different time as long as can realize the CSI of different CC, and can satisfy the accurate tracking of base station that any polling mode all is fine to the CSI of descending CC.The shared Resource Block of the above-mentioned PUCCH resource of different CC, the cyclically shifted sequences that is adopted can have nothing in common with each other.

Here illustrate with Fig. 3, suppose that subscriber equipment has two descending CC.One is PCC, and the resource of pairing PUCCH is Resource Block A, cyclically shifted sequences B, and the cycle is 10 milliseconds, the time offset of feedback point in this cycle is 1 millisecond; Behind SCC of new activation, when the base station is its Resources allocation, need be in the PUCCH resource pool that the base station is reserved selection cycle and the pairing PUCCH resource of PCC be all 10 milliseconds mutually, the PUCCH resource of (6 milliseconds as shown in FIG.) that time offset is different, pairing Resource Block of this PUCCH resource and/or cyclically shifted sequences can be different with Resource Block and/or the cyclically shifted sequences of the pairing PUCCH of PCC.

The distribution of above-mentioned these extra PUCCH resources can be adopted following several mode: as the same pre-configured to subscriber equipment by the base station by the RRC signaling with the method for salary distribution of the pairing PUCCH resource of descending PCC; Can when activate new SCC, be embedded in the aforementioned activation signaling and be notified to subscriber equipment together; Also can independently activate outside the signaling, or after the activation manipulation success is confirmed in the base station, be notified to subscriber equipment with extra layer 1, layer 2 or layer 3 means of signaling.

Except the mode of the above-mentioned PUCCH resource of each descending SCC being regarded as independent user devices allocation LTE R-8 definition, can also be that the subscriber equipment that activates a plurality of descending CC is reserved (as by the RRC signaling) a part of shared PUCCH resource and is used to transmit CSI and feeds back specially in LTE R-10.The quantity of considering the subscriber equipment that activates a plurality of descending CC simultaneously can be not too many, the quantity of the PUCCH resource that these subscriber equipmenies are shared can be very not big yet, and the resource indication information major part has been configured when reserved resource to subscriber equipment, therefore needed extra bit number is also smaller when the PUCCH resource allocation, when cooperating above-mentioned RRC signaling, activation signaling or extra resource allocation signal to transmit, signaling consumption also can be smaller.

Example here is semi-persistent scheduling (SPS, resource distribution mode Semi-PersistentScheduling) among the LTE R-8.As the SPS resource allocation, (SCC needed before activating in advance by base station configuration to the relevant parameter of subscriber equipment when the base station is user device configuration SCC, the enforcement of RRC signaling is generally passed through in this operation when subscriber equipment enters system), be the PUCCH resource of the subscriber equipment reservation of employing carrier aggregation technology specially for its semi-static ground (semi-statically) distributes some (for example 4) base station.When this SCC of base station activation, which really is used for the feedback of the CSI of this SCC in 4 PUCCH resources that the base station can adopt the signaling indication of 2 bits to distribute before.These 2 bits can transmit by activating in signaling or the above-mentioned various signaling.Adopt the advantage of this resource distribution mode to be to obtain the statistical multiplexing gain of reserved resource.

In LTE R-10,, consider that the CSI feedback of above-mentioned periodic polls can increase the density of the CSI feedback of time domain, thereby can increase the probability of CSI and the collision of HARQ feedback for the subscriber equipment that has activated a plurality of descending CC.In order to reduce this collision probability, periodic PUSCH can be used for transmitting CSI feedback periodically.In the CSI feedback method based on periodicity PUSCH, the resource allocation of base station 100 and scheduling unit 102 have activated the PUSCH resource of the subscriber equipment 200 distribution one-periods of a plurality of descending CC for each.In each cycle, the CSI combined coding of the descending CC that the coding unit 202 of subscriber equipment is all activated with it and add CRC after, or after encoding respectively and adding corresponding CRC, give base station 100 by this PUSCH resource transmission by Transmit-Receive Unit 205.As shown in Figure 5, the CSI feedback cycle of descending CC of considering different center frequency is different, the CSI feedback cycle of the descending CC of different transmission mode is also different, can consider to be divided into some groups according to the descending CC that frequency range or transmission mode or other factors will activate, every group of cycle of adopting a uniqueness carries out periodicity PUSCH and transmits.Above-mentioned packet mode, cycle, time offset, Resource Block, resource allocation parameters settings such as modulation coding mode can by resource allocation and scheduling unit 102 by embed aforementioned activation means of signaling when activating descending SCC along the band configuration, also can adopt extra layer 1, layer 2 or layer 3 signaling to be configured and to reconfigure.For saving the control expense, periodically the size (number of shared Resource Block) of PUSCH resource need be distributed (when having only one-period to exist) according to the CC number that subscriber equipment has activated, or distribute (when several cycles exist) according to the CC number that has activated in above-mentioned every group, resource allocation can by resource allocation and scheduling unit 102 by embed aforementioned activation means of signaling when activating descending SCC along the band configuration, also can adopt extra layer 1, layer 2 or layer 3 signaling to be configured and to reconfigure.The resource allocation of periodicity PUSCH also can be adopted the resource allocation methods of similar aforementioned periodicity PUCCH in addition, and the method that promptly adopts the reservation shared resource to add extra signaling configuration realizes.

Step 105: the reception of subscriber equipment to some descending SCC closed in the base station, or subscriber equipment cuts out the long-term not reception of the descending CC of scheduling automatically.

When subscriber equipment 200 downlink transfer no longer needed a plurality of CC, the control unit 101 of base station 100 can indicate Transmit-Receive Unit 104 to close the reception of the some or all of SCC except that descending PCC.Perhaps by using timer 2 03, the control unit 204 of subscriber equipment 200 also can indicate Transmit-Receive Unit 205 to close the SCC that is not scheduled for for a long time automatically.When closing SCC need with before distribute to the periodicity PUCCH/PUSCH resource that these SCC are used to transmit CSI feedback periodically and discharge, to improve the efficiency of transmission of system.Generally can adopt the mode of acquiescence to realize the release of resource, promptly be closed when receiving as some SCC, the periodicity PUCCH/PUSCH resource of its correspondence is reclaimed by the base station automatically.But also exist as under the above-mentioned periodicity PUSCH CSI feedback system, when a part of feedback resources changes, some resource distribution parameter such as packet modes, the cycle, time offset, Resource Block, modulation coding modes etc. need reconfigure.The resource release signaling can be embedded in to close in the signaling and transmit by resource allocation and scheduling unit 102 when closing signaling when existence this moment, also can adopt extra layer 1, layer 2 or the transmission of layer 3 signaling; When not existing when closing signaling, extra layer 1, layer 2 or layer 3 signaling need be defined and be used for realizing reconfiguring of feedback parameter.

Can adopt in conjunction with based on aperiodicity PUSCH with based on the method for periodicity PUCCH/PUSCH from the transmission of subscriber equipment 100 200 CSI feedback to the base station; Also can adopt the method for only using based on aperiodicity PUSCH.In the following description, the former repeats no more the existing part of describing in embodiment 1, the latter then mainly considers the CSI feedback based on aperiodicity PUSCH by layer 1 scheduling, promptly indicates (wherein CQI request position 1) based on the used resource of CSI feedback of aperiodicity PUSCH by the uplink assignment that defines among the LTE R-8PDCCH DCI.When only use is carried out the CSI feedback based on aperiodicity PUSCH, periodically the PUCCH resource will not re-use.When use is carried out the CSI feedback based on aperiodicity PUSCH, the base station is when the CSI of certain descending CC of needs feedback, will be to PUSCH of this dispatching user facility (concrete scheduling this time needs the CSI of which CC of transmission will to describe in detail among the embodiment below), subscriber equipment will will need the CSI of CC of CSI feedback through combined coding or the disposable base station that is uploaded to after the operation such as coding respectively in this PUSCH resource.

Embodiment 2:

According to present embodiment, scheduling can send in all activated descending CC (set of the descending SCC of descending PCC and activation) based on the PDCCH of the CSI feedback transmission of aperiodicity PUSCH.Similarly, will in up PCC, carry out based on the up CSI feedback of aperiodicity PUSCH.

Allowing scheduling is to make that the transmission of this dispatch request is more flexible based on the benefit that the PDCCH of the CSI feedback transmission of aperiodicity PUSCH can send in all activated descending CC.When certain descending CC just is activated, or be the base station because what other reason need obtain the detailed CSI of this descending CC the time, the resource allocation of base station 100 and scheduling unit 102 can be by Transmit-Receive Unit 104 in uplink assignment of the control area of this descending CC transmission, and with its CQI request position 1.If this descending CC does not need to use CIF, then this uplink assignment will indicate UE to transmit the CSI of this descending CC according to this uplink assignment on up PCC; If this descending CC need use CIF, then CIF can put 0, and this uplink assignment will indicate UE to transmit the CSI of this descending CC according to this uplink assignment on up PCC equally; If this descending CC (descending CC1) is not in UE detects the CC scope of control area (PDCCH monitoring), the uplink assignment of then aforementioned CQI request position 1 need be placed in the control area of another descending CC (descending CC2) that uses CIF (the control area subscriber equipment of CC2 can detect), and its CIF is changed to the pairing CIF value of CC1, so this uplink assignment will indicate UE to transmit the CSI of descending CC1 according to this uplink assignment on up PCC.

More than the uplink scheduling of each CQI request position 1 all can only a descending CC of scheduled transmission acyclic CSI feedback.For realizing that 1 uplink scheduling can dispatch the acyclic CSI feedback of a plurality of descending CC, some data field in CIF and/or the above-mentioned uplink assignment need redefine to indicate the current combination that needs the descending CC of the acyclic CSI feedback of transmission.An example as shown in Figure 5, user's equipment downward comprises 5 CC of PCC one co-activation.Because the present definition of CIF is 3 bits of fixing, therefore have 8 states, remove be used to indicate 5 states of each descending CC after, also have 3 states to indicate respectively as 3 combinations among Fig. 5.Combination 1 and combination 2 are corresponding to two frequency bands, and the several downlink CC in the frequency band generally has approximate CSI transmission demand; Combination 3 corresponding all descending CC.So, after the Transmit-Receive Unit 205 of subscriber equipment detects the uplink scheduling of CQI request position 1, according to the state of the CIF of this uplink scheduling, decision in up PCC transmission to the descending CC that should state or the acyclic CSI feedback of descending CC combination.The principle of grouping can also be other factors (as transmission mode etc.) except frequency band, only is the example explanation here with the frequency band.

Embodiment 3:

According to present embodiment, scheduling can send in all activated descending CC based on the PDCCH of the CSI feedback transmission of aperiodicity PUSCH.In addition, up CSI feedback transmission based on aperiodicity PUSCH can be carried out in all up CC.

Allow the up benefit that can transmit in all up CC based on the CSI feedback of aperiodicity PUSCH to be: the CSI feedback can be transmitted in up SCC by scheduling CSI feedback with the problem of HARQ feedback collision and avoid.Because must transmit in up PCC as the PUCCHHARQ feedback of introducing in the background technology, if the CSI feedback also is limited at and can only sends in up PCC, the two collision probability is still bigger.

Consider which up CC the CIF in the uplink assignment need be used to refer to this uplink assignment in the present embodiment, so be used to refer to the pairing acyclic CSI feedback of this uplink assignment can not be again in embodiment 2 at which descending CC or descending CC combination.

Two kinds of situation exceptions are arranged, when the first can only go up transmission at the up CC with this descending CC pairing (pairing of LTE R-8 rule or the pairing of other pre-defined rules) when the acyclic CSI feedback of certain descending CC of constraint, this moment, which up CC the CIF in the uplink assignment only need be used to refer to this uplink assignment at, and the pairing acyclic CSI feedback of this uplink assignment then is at the descending CC's of this up CC pairing.Its two be when the uplink assignment of constraint on certain descending CC just at the up CC of this descending CC pairing (pairing of LTE R-8 rule or the pairing of other pre-defined rules), which descending CC the CIF in this moment this uplink assignment can be used to refer to the pairing acyclic CSI feedback of this uplink assignment corresponding to.

Except above exception, for indicating the pairing acyclic CSI feedback of above-mentioned uplink assignment at which descending CC or descending CC combination neatly, some data field in the uplink assignment need redefine to be used to refer to this information.Example is to have only the state in modulation, coding and the redundancy versions territory (Modulation andcoding scheme and redundancy version) in the control information of part uplink assignment can be used for representing used actual modulated, coding and the redundancy versions of acyclic CSI feedback by restriction, and the rest parts state then is used to indicate the pairing acyclic CSI feedback of this uplink assignment at which descending CC or descending CC combination.Other data fields that can be used to redefine also have reference signal cyclic shift territory (Cyclic shift for DM RS) etc.If it is excessive to redefine the restriction that brings, can consider to adopt the extra bit of increase to be used to indicate above-mentioned information.If can not change the size of uplink assignment control information, then also have following method to use:

As shown in Figure 7, comprise the uplink assignment control information among the DCI among the PDCCH of LTE R-10, form by three parts: the uplink assignment control information of LTE R-8, CIF (whether exist see whether the descending CC in place adopts stride carrier dispatching) and cyclic redundancy check (CRC) (Cyclic RedundancyCheck, CRC).Above-mentioned CRC is by the ID of UE among the LTE R-8, and (Cell Radio Network Temporary ID C-RNTI) waits scrambling as Cell Radio Network Temporary Identifier/Identity, Cell-RNTI.On the scramble sequence on the CRC of LTE R-10 (as C-RNTI etc.), further add some (as X) mask code sequence (masking sequence) in this method.The resource allocation of base station 100 and scheduling unit 102 are selected one in the mask of the X from be stored in memory cell 103 as required, with scrambling behind original scramble sequence XOR to CRC.The Transmit-Receive Unit 205 of subscriber equipment 200 detects the mask code sequence of base station selection in the process of blind Detecting PDCCH, be equivalent to additionally obtain the information of log2 (X) bit.Certainly this method increases to cost can distribute decline of UE ID quantity and UE ID collision probability, if but the quantity of the mask code sequence that uses is few, the method that reduces to control expense effectively of also can yet be regarded as.To adopt 4 masks is example, equivalently, uplink assignment has increased by 2 bits, 3 bits of fixing in conjunction with CIF, have 32 (2 5 powers) kind state and can be used to indicate aforementioned information, comprise this uplink assignment at which up CC, and the pairing acyclic CSI feedback of this uplink assignment is at which descending CC or descending CC combination.

The CC compound mode that relates in more than describing can adopt the mode among the embodiment 2, and the data field in the present embodiment redefines method etc. and also can be applicable among other embodiment.

Embodiment 4:

Physical Control Format Indicator Channel when striding carrier dispatching in the LTE R-10 system (Physical Control Format Indicator CHannel in order to make, PCFICH) control format indication (the Control Format Indicator on, CFI) probability of false detection of information is consistent with carrier dispatching the time, needs research to reduce the method for the CFI probability of false detection when striding carrier dispatching.One piece of motion of NTT DoCoMo (Views on Solution to PCFICH Detection Error, R1-094237, RAN1#58bis, NTT DOCOMO, October, 2009) a kind of implicit indicating means of CFI based on the CRC mask of PDCCH of striding under the carrier dispatching has been proposed.Concrete grammar is: as shown in Figure 7, in the CRC that strides the pairing DCI form of PDCCH that carrier dispatching uses, add with the carrier wave that is carried on PDSCH on the relevant mask of control format.The Transmit-Receive Unit 205 of subscriber equipment 200 just can be in blind Detecting PDCCH, by checking different CRC masks, impliedly obtains to carry the control format information on the carrier wave of PDSCH.

Adopt the problem of this method to be: owing to need the CRC mask quantity more (3) of introducing, to compare LTE R-8 similar approach (uplink antenna is selected, and it is 2 that the CRC mask needs quantity), reduced the allocatable space of UE ID.And cause thus for each UE, the number of times of CRC check is compared LTE R-8 can be increased, and may bring the increase of PDCCH false alarm probability.

The present tendency on this problem of LTE R-10 standardization effort is to adopt based on the indication of RRC signaling or based on the DCI signaling of CFI and CIF combined coding to indicate one of two kinds of methods to address this problem, a kind of motion (PCFICH forCross-Carrier Assignment that realizes being documented in one piece of NTT DOCOMO of the latter, R1-102288, RAN 1#60bis, NTT DOCOMO, 2010) in.Yet two kinds of equal defectiveness of method, the former can bring the waste of the limitation and the resource of scheduling in realization, and the latter is inapplicable when the quantity of the descending CC that activates is big.

Be the DCI signaling indication method that only uses based on CFI and CIF combined coding as shown in Table 1 and Table 2, wherein CC0 is this CC (promptly striding carrier dispatching CC) owing to what indicate, can indicate CFI information again.As can be seen, because the restriction (fixing 3 bits) of CIF bit number, when the quantity of the CC that activates during greater than 3, the combination of not all CFI and CIF can embody by the combined coding mode in CIF.The problem of bringing thus is that the CFI value of the CC that can not indicate in CIF can only adopt fixed value, or adopts the mode of RRC signaling configuration to obtain.

The combined coding mode of table 1 CIF and CFI

The combined coding mode of another kind of CIF of table 2 and CFI

Present embodiment combines based on the DCI signaling indication method of CFI and CIF combined coding and implicit indicating means based on the CRC mask, propose a kind of CFI indicating means when simply striding carrier dispatching, overcome the defective of original DCI signaling indication method based on CFI and CIF combined coding effectively.

The resource allocation of base station and scheduling unit 102 distribute some (X) CRC mask code sequence for having the user who activates a plurality of descending CC abilities simultaneously, when striding the descending distribution of carrier dispatching DCI, the state of CIF that transmit as required the base station and CFI combined coding is chosen a CIF value and a CRC mask code sequence, the former is added in the descending distribution, latter's scrambling is gone up (this CRC is also with the ID of scrambling subscriber equipment) to the pairing CRC of this DCI.The Transmit-Receive Unit 205 that is in the subscriber equipment that activates a plurality of descending CC states simultaneously detects these CRC masks and whether has (except that the ID that detects subscriber equipment) in blind detection process.When subscriber equipment according to the combine detection of some subscriber equipment ID and above-mentioned some CRC mask code sequences during to PDCCH, CIF among the pairing DCI of this PDCCH is removed, with the CRC mask code sequence that detects, the CIF that the decision base station need be transmitted and the state of CFI combined coding.The CRC mask code sequence can carry log2 (X) bit information equivalently.3 bits of fixing of these bits and CIF are united use can solve the above-mentioned problem that causes the combination of not all CFI and CIF to embody by the combined coding mode inadequately because of the CIF bit number in CIF.

With 2 CRC masks in the table 3 is example, and the Transmit-Receive Unit 205 of subscriber equipment can obtain 1 extra except that DCI bit information equivalently by blind Detecting.3 bit informations of this 1 bit information and CIF combine can provide 16 kinds of states, can satisfy the demand of CIF and CFI combined coding fully.

In a kind of simple combined coding mode as shown in table 4 is that example is further explained the described method of present embodiment, 4 CC (comprising PCC) have been activated now such as the base station, the base station need be used to indicate a descending distribution on the CC2 at DCI of transmission on the CC0, if the CFI of CC2 is 2 now, then table look-up 4 as can be seen the combined coding state of CIF and CFI be 101/1, be that the CIF value is 101, the CRC mask code sequence will adopt sequence No. 1.So the base station writes 101 in the CIF territory of above-mentioned descending distribution, calculates the CRC of whole DCI then, with No. 1 CRC mask code sequence on this CRC XOR, the ID of the pairing subscriber equipment of this DCI on the XOR is put into then and goes transmission among the PDCCH again.Subscriber equipment will be with the various combination blind Detecting PDCCH of its device id and CRC mask code sequence on CC0, if do not make mistakes, subscriber equipment can detect this PDCCH, take out the value of CIF among the DCI of subscriber equipment from this PDCCH, used CRC mask when detecting this PDCCH, finding this descending distribution from table 4 is corresponding CC2, and the CFI value on the CC2 is 2.

Table 4 can also further be optimized certainly, as consider when subscriber equipment is carried out blind Detecting and generally can detect mask code sequence 1 earlier, then can be in preceding half table that is labeled as use mask code sequence 1 of table 4 with some combined codings of occurring the possibility maximum in CIF and the CFI united state.The configuration of table 4 and reconfigure and to finish by the RRC signaling.Table 5 has provided another kind of possible combined coding mode.

The mask code sequence that table 3 uses

Sequence number	Mask code sequence
		1	<0，0，0，0，0，0，0，0，0，0，0，0，0，0，0，0>
2	<0，0，0，0，0，0，0，0，0，0，0，0，0，0，0，1>

Table 4 combine based on the DCI signaling indication method of CFI and CIF combined coding with based on the implicit indicating means of CRC mask stride carrier dispatching the time the CFI indicating means

011/2	-	-	-	?CC4，CFI＝2
					100/2	-	-	-	?CC4，CFI＝3
101/2	-	-	-	?-
					110/2	-	-	-	?-
111/2	-	-	-	?-

The another kind of possible combined coding mode of table 5

About the combined coding mode of similar table 4 and table 5, stride carrier dispatching CC for each, the CC numbering in the table all can change with the mapping relations of actual physics CC.This variation can be finished by the RRC signaling.

In addition, if the combined coding mode is designed to appearance as shown in table 6, then the CC numbering then can be consistent for the different carrier dispatching CC that stride with the mapping relations of actual physics CC, no longer needs additional configuration.The another one benefit of table 6 is that the mapping relations of CC numbering and the actual physics CC of different UEs also can be identical, need not additionally be configured.

Another possible combined coding mode of table 6

Embodiment 5:

On up PCC, when transmitting simultaneously, consider the restriction of up peak-to-average force ratio when the pairing HARQ feedback of a plurality of descending CC and based on the CSI feedback of periodicity or aperiodicity PUSCH, the HARQ feedback need be put among the PUSCH and transmit.

Here the pairing HARQ feedback of a plurality of descending CC is the ACK/NACK that takies a plurality of bits, can not transmit by PUCCH when transmitting simultaneously with the CSI feedback.An example is to adopt the PUCCH format 2 of LTE R-8 definition to transmit, and when the CC number that activates is fewer (as 2), corresponding HARQ bit number also fewer (as 5 bits) can adopt a PUCCH Format 2 to transmit; When the CC number that activates is many (as more than 3), corresponding HARQ bit number is many (as 10 bits) also, can adopt two the PUCCH Formats 2 of corresponding resource allocation in a Physical Resource Block (PRB, Physical Resource Block) to transmit.

In the present embodiment, when the HARQ feedback was transmitted simultaneously with the CSI feedback, the HARQ feedback was no longer transmitted in PUCCH, but transmits in PUSCH.

When HARQ feedback was transmitted in PUSCH with the CSI feedback, both can combined coding, also can encode respectively.The coded system that adopts can use convolution code or block code (as the Reed Muller sign indicating number among the LTE R-8) to realize according to the size decision of feedback quantity.Bit behind the coding can adopt the method identical with LTE R-8 as shown in Figure 9 to be placed in the PUSCH resource through after the sign map, the mapping method among the LTE R-8 during concrete mapping method can reference background be introduced.The position of various CSI and HARQ feedback can change according to different design requirements among Fig. 9, but need guarantee that CSI and HARQ feed back between the pairing symbol does not overlap, and avoids because of the loss that abandons (Drop) or puncture (Puncture) causes.

Parameter configuration described in the foregoing description, signaling etc. all are subscriber equipment proprietary (UE specific) not having under the special situation about indicating.

In above description, at each step, enumerated a plurality of examples, though the inventor indicates example associated with each other as much as possible, this does not also mean that must there be corresponding relation in these examples according to corresponding label.As long as selected example do not have contradiction between given condition, can in different steps, select the not corresponding example of label to constitute the corresponding techniques scheme, such technical scheme also should be considered as within the scope of the invention involved.

Should be noted in the discussion above that in above description,, show technical scheme of the present invention, but be not intended that the invention be limited to above-mentioned steps and cellular construction only in the mode of example.Under possible situation, can adjust and accept or reject step and cellular construction as required.Therefore, some step and unit are not to implement the necessary element of overall invention thought of the present invention.Therefore, technical characterictic essential to the invention only is subject to the minimum requirements that can realize overall invention thought of the present invention, and is not subjected to the restriction of above instantiation.

So far invention has been described in conjunction with the preferred embodiments.Should be appreciated that those skilled in the art can carry out various other change, replacement and interpolations under the situation that does not break away from the spirit and scope of the present invention.Therefore, scope of the present invention is not limited to above-mentioned specific embodiment, and should be limited by claims.

Claims

1. ascending physical signal control information transmission method comprises step:

The base station activation subscriber equipment is to the reception of one or more descending SCC;

Notifying user equipment ascending control information transmission used resource in base station based on aperiodicity PUSCH;

Subscriber equipment is transferred to the base station will comprise the CSI combined coding of descending CC of descending SCC and/or descending PCC by described resource after;

Descending scheduling is carried out based on described CSI in the base station;

Subscriber equipment makes the base station can follow the tracks of the variation of the CSI of descending CC periodically to the CSI of the descending CC of base station feedback.

2. ascending physical signal control information transmission method as claimed in claim 1 further comprises step:

The base station can be dispatched extraly based on the resource of aperiodicity PUSCH and is used to transmit the CSI feedback to subscriber equipment if desired.

3. ascending physical signal control information transmission method as claimed in claim 1 further comprises step:

The reception of subscriber equipment to described descending SCC closed in the base station, or

Subscriber equipment cuts out the not reception of the descending CC of scheduling in the predetermined amount of time automatically.

4. ascending physical signal control information transmission method according to claim 1, wherein, the base station activation subscriber equipment is to adopt the signaling of layer 1 and/or layer 2 and/or layer 3 to realize to the reception of one or more descending SCC.

5. ascending physical signal control information transmission method according to claim 1, wherein, the used resource of base station notifying user equipment ascending control information transmission is to adopt to activate signaling or be independent of the signaling that activates the outer layer 1 of signaling and/or layer 2 and/or layer 3 to realize.

6. ascending physical signal control information transmission method according to claim 1, wherein, the CSI that comprises the descending CC of descending SCC and/or descending PCC is the CSI that comprises the descending CC of descending PCC and all current descending SCC that activated, perhaps for only comprising the last CSI that activates the descending CC of new those descending SCC that activate in the signaling.

7. ascending physical signal control information transmission method according to claim 1, wherein, subscriber equipment periodically comprises to the CSI of the descending CC of base station feedback:

Subscriber equipment periodically feeds back the CSI of each descending SCC, the used resource of the CSI of each descending SCC feedback be the base station be the subscriber equipment additional configuration with LTE R-8 in the identical periodicity PUCCH resource of definition.

8. ascending physical signal control information transmission method according to claim 7, wherein, the used resource of the CSI of each descending SCC feedback is to adopt to activate signaling or be independent of the signaling that activates the outer layer 1 of signaling and/or layer 2 and/or layer 3 to notify.

9. ascending physical signal control information transmission method according to claim 1, wherein, subscriber equipment periodically comprises to the CSI of the descending CC of base station feedback:

Subscriber equipment periodically feeds back the CSI of all descending CC, and feeding back used resource is that the base station is the periodicity PUSCH of subscriber equipment additional configuration.

10. ascending physical signal control information transmission method according to claim 9 wherein, is divided into some groups with the descending SCC that activates, and every group is adopted the cycle of a uniqueness to carry out periodicity PUSCH transmission.

11. according to the described ascending physical signal control information of one of claim 1～10 transmission method, wherein, scheduling sends in all activated descending CC based on the PDCCH of the CSI feedback transmission of aperiodicity PUSCH, then transmits in up PCC based on the CSI feedback of aperiodicity PUSCH.

12. ascending physical signal control information transmission method according to claim 11, wherein, the CIF among the PDCCH is used for indicating the CSI feedback of which descending CC to transmit at up PCC.

13. according to the described ascending physical signal control information in one of claim 11 and 12 transmission method, wherein, the CIF among the PDCCH and/or some other data field are defined as indicating the current combination based on the descending CC of the CSI feedback of aperiodicity PUSCH that needs transmission.

14. according to the described ascending physical signal control information of one of claim 1～10 transmission method, wherein, scheduling sends in all activated descending CC based on the PDCCH of the CSI feedback transmission of aperiodicity PUSCH, and up CSI feedback transmission based on aperiodicity PUSCH is carried out in all up CC.

15. ascending physical signal control information transmission method according to claim 14, wherein, the CIF among the PDCCH and/or some other data field are defined as indicating the current combination based on the descending CC of the CSI feedback of aperiodicity PUSCH that needs transmission.

16., it is characterized in that the ascending physical signal control information comprises CQI, PMI and RI according to the described ascending physical signal control information of one of claim 1～15 transmission method.

17. according to claim 1, one of 7,8 described ascending physical signal control information transmission methods, described periodicity CSI feedback resources comprises Resource Block indication, cyclically shifted sequences indication, cycle and time side-play amount.

18. a base station comprises:

Transmit-Receive Unit, excited users equipment are to the reception of one or more descending SCC, and notifying user equipment aperiodicity ascending control information transmits used resource;

Resource allocation and scheduling unit carry out descending scheduling based on the CSI about down channel from the subscriber equipment feedback;

Wherein, described Transmit-Receive Unit receives by the CSI of described resource from the descending CC that comprises descending SCC and/or descending PCC of described subscriber equipment transmission, and described resource allocation and scheduling unit carry out descending scheduling based on described CSI; And

Transmit-Receive Unit receives subscriber equipment periodically to the CSI of the descending CC of base station feedback, makes the base station can follow the tracks of the variation of the CSI of descending CC.

19. base station as claimed in claim 18, wherein, the reception of subscriber equipment to described descending SCC closed in described Transmit-Receive Unit order.

20. base station according to claim 18, wherein, excited users equipment is to adopt the signaling of layer 1 and/or layer 2 and/or layer 3 to realize to the reception of one or more descending SCC.

21. base station according to claim 18, wherein, the used resource of notifying user equipment aperiodicity ascending control information transmission is to adopt to activate signaling or be independent of the signaling that activates the outer layer 1 of signaling and/or layer 2 and/or layer 3 to realize.

22. a subscriber equipment comprises:

Transmit-Receive Unit receive to activate the notice to the used resource of the notice of the reception of one or more descending SCC and the transmission of subscriber equipment aperiodicity ascending control information;

The CSI acquiring unit obtains the CSI of the descending CC that comprises descending SCC and/or descending PCC;

Coding unit will comprise the CSI combined coding of the descending CC of descending SCC and/or descending PCC;

Wherein, the CSI of described Transmit-Receive Unit after with combined coding is transferred to the base station, and Transmit-Receive Unit makes the base station can follow the tracks of the variation of the CSI of descending CC periodically to the CSI of the descending CC of base station feedback after this.

23. subscriber equipment as claimed in claim 22 wherein, cuts out the not reception of the descending CC of scheduling in the predetermined amount of time automatically.

24. subscriber equipment according to claim 23, wherein, periodically feed back the CSI of each descending SCC, the used resource of the CSI of each descending SCC feedback be the base station be the subscriber equipment additional configuration with LTE R-8 in the identical periodicity PUCCH resource of definition.

25. subscriber equipment according to claim 22 wherein, periodically feeds back the CSI of all descending CC, feeding back used resource is that the base station is the periodicity PUSCH of subscriber equipment additional configuration.