CN102378385A

CN102378385A - Uplink control information transmission method, base stations and user equipment

Info

Publication number: CN102378385A
Application number: CN2010102555891A
Authority: CN
Inventors: 杨曾; 刘仁茂; 丁铭; 张应余; 梁永明
Original assignee: Sharp Corp
Current assignee: Sharp Corp
Priority date: 2010-08-16
Filing date: 2010-08-16
Publication date: 2012-03-14

Abstract

The invention discloses an uplink control information transmission method, base stations and user equipment. Aiming at certain new problems in uplink control information transmission of a 3GPP (3rd Generation Partnership Project) long term evolution-advanced system (LTE Re1-10), particularly in different uplink channels and/or signal multiplexing, the invention provides a multiplexing method for uplink control channels, data channels and reference signals, an allocation method for uplink control channel resources and the like in certain LTE Re1-10 and subsequent version systems, and corresponding base stations and user equipment.

Description

Ascending control information transmission method, base station and subscriber equipment

Technical field

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

Background technology

Be in the next generation mobile communication system of representative with 3GPP LTE (Long Term Evolution); Ascending control channel refers to that mainly (Physical Uplink ControlCHannel PUCCH), is used for subscriber equipment (User Equipment to Physical Uplink Control Channel; UE) to base station (BaseStation; BS is called eNB again) and the transmission ascending control information (Uplink Control Information, UCI).

Have 3 kinds of UCI among the LTE Rel-8; Comprise dispatch request (Scheduling Request; SR), the automatic request retransmission of down mixing (Hybrid Automatic ReQuest retransmission, HARQ) feedback (ACKnowledgement/Negative ACKnowledgement; ACK/NACK) and channel status indication (Channel State Indicator, CSI) feedback.Wherein CSI comprise again channel quality indication (Channel Quality Indicator, CQI), the pre-coding matrix indication (Precoding Matrix Indicator, PMI) with the order indication (Rank Indicator, RI) etc.In LTE Rel-8, descending HARQ feedback and CSI feedback can be transmitted separately or multiplexing transmission on PUCCH; CSI feedback and/or HARQ feedback also can be in ascending physical signal shared channel (Physical Uplink Shared CHannel, PUSCH) last and data multiplex transmission; For the CSI feedback, also can, BS require UE on the up PUSCH resource that BS distributes, to carry out the transmission of aperiodicity ground when having special channel information demand.Up except PUCCH and PUSCH among the LTE Rel-8, also have Sounding Reference Signal (Sounding ReferenceSignal, SRS).Worked out the adverse effect that the complete scheme of a cover causes system when solving all kinds of up channels and/or signal multiplexing among the LTE Rel-8, the raising of the up peak-to-average force ratio that is brought when wherein adverse effect mainly is meant and is transmitted simultaneously by multiple up channel and/or signal.

3GPP LTE-Advanced system has introduced carrier aggregation technology in (being called LTE Rel-10 again), that is: (Component Carrier, CC) polymerization is to support the up-downgoing transmission bandwidth greater than 20MHz for two or more component carriers.In LTE Rel-10, a proprietary up PCC (Primary CC) of UE is configured to carry the ascending control information of the employing PUCCH transmission of this UE semi-staticly, comprises descending HARQ feedback, SR and periodicity CSI etc.Because the increase of downlink component carrier, also corresponding the increasing the weight of of burden of corresponding descending HARQ feedback, so defined two types of UE among the LTE Rel-10 adopted different descending HARQ feedback transmission modes respectively to the difference of descending HARQ feedback quantity.When descending HARQ number of bits of feedback smaller or equal to 4 the time, this type UE will adopt the mode of the ACK/NACKmultiplexing (be called channel selection again, channel is selected) under the similar LTE Rel-8TDD to transmit descending HARQ feedback; When descending HARQ number of bits of feedback greater than 4 the time; This type UE will adopt that a kind of new (Discrete Fourier TransformSpread Orthogonal Frequency Division Multiplex, signal DFT-S-OFDM) transmit descending HARQ feedback based on the discrete fourier transition spread-spectrum orthogonal frequency division multiplexing.It should be noted that the descending HARQ feedback system of two types of UE all deteriorated to the up feedback system of LTE Rel-8 when descending distribution (downlink assignment) was arranged on having only descending PCC.In addition, also will introduce new branch collection transmission technology in the LTE Rel-10 ascending control channel transmit mechanism, as the spatial domain orthogonal resource send to divide collection (SpatialOrthogonal-Resource Transmit Diversity, SORTD) etc.Similar with LTE Rel-8, as also to need a sets of plan system to be caused when solving all kinds of up channels and/or signal multiplexing among LTE Rel-10 adverse effect.Although there is part can use for reference LTE Rel-8 in this scheme, because new descending HARQ feedback system and the introducing of sending diversity technique, multiplexing scheme need design again.Non-patent literature (" Discussion on various UL transmissionconfigurations ", Panasonic, 3GPP TSG RAN WG1 Meeting #61bis, R1-103756,28 ^ThJune-2 ^NdJuly, 2010) multiplexing scheme of existing up channel of LTE Rel-8 and signal and the conception of some the corresponding schemes among the LTE Rel-10 have been provided.

Summary of the invention

Technical problem to be solved by this invention is; In the transmission of LTE Rel-10 ascending control information; Some new problems that run in particularly different up channels and/or the signal multiplexing; The multiplexing method of ascending control channel, data channel and reference signal in some LTE Rel-10 and the later release system is proposed, the distribution method of uplink control channel resource etc., and corresponding base station and subscriber equipment.

According to a first aspect of the invention; Proposed a kind of descending HARQ feedback and CSI to be carried out multiplexing method; May further comprise the steps: original descending HARQ feedback information is mapped as the descending HARQ feedback information of many groups, and every group of descending HARQ feedback information is associated with one of many antennas; And utilize PUCCH resources different on the respective antenna, send CSI and respectively organize descending HARQ feedback information through mapping.

According to a second aspect of the invention; A kind of method of multiplexing descending HARQ feedback and CSI being carried out demultiplexing has been proposed; May further comprise the steps: receive with the corresponding different PUCCH resource of many transmit antennas on CSI and many groups of descending HARQ feedback informations through shining upon, every group of descending HARQ feedback information is associated with one of many antennas; And will separate and be mapped as original descending HARQ feedback information through many groups of descending HARQ feedback informations of mapping.

According to a third aspect of the invention we, proposed a kind of subscriber equipment, having comprised: map unit, be used for original descending HARQ feedback information is mapped as the descending HARQ feedback information of many groups, every group of descending HARQ feedback information is associated with one of many antennas; And transmitting element, be used to utilize PUCCH resources different on the respective antenna, send CSI and respectively organize descending HARQ feedback information through mapping.

According to a forth aspect of the invention; A kind of base station has been proposed; Comprise: receiving element, be used to receive with the corresponding different PUCCH resource of many transmit antennas on CSI and through many groups of descending HARQ feedback informations of mapping, every group of descending HARQ feedback information is associated with one of many antennas; And separate map unit, be used for being mapped as original descending HARQ feedback information with separating through many groups of descending HARQ feedback informations of mapping.

According to a fifth aspect of the invention, proposed a kind of descending HARQ feedback and CSI to be carried out multiplexing method, may further comprise the steps: descending HARQ feedback information is divided into first and second portion; The first and the CSI of descending HARQ feedback information are carried out combined coding; CSI behind the combined coding is in the same place with the first of descending HARQ feedback information is multiplexing; And it is the second portion of descending HARQ feedback information is together multiplexing with the mode and the CSI of reference signal modulation.

According to a sixth aspect of the invention, proposed a kind of descending HARQ feedback and CSI to be carried out multiplexing method, may further comprise the steps: descending HARQ feedback information is compressed; Descending HARQ feedback information and CSI after the compression are carried out combined coding; And utilize the descending HARQ feedback information after the PUCCH resource is sent CSI and the compression behind the combined coding.

According to a seventh aspect of the invention, proposed a kind of descending HARQ feedback to be carried out multiplexing method with CSI, it is characterized in that: CSI that different descending CC are corresponding and/or dissimilar CSI are different with the multiplex mode that descending HARQ feeds back.

According to an eighth aspect of the invention; Proposed under a kind of CP of expansion descending HARQ feedback and SRS to be carried out multiplexing method; May further comprise the steps: descending HARQ feedback information is expanded on 4 in preceding 5 DFT-S-OFDM symbols of the DFT-S-OFDM signal format with 6 DFT-S-OFDM symbols, wherein RS is on the 3rd DFT-S-OFDM symbol; SRS is mapped as last DFT-S-OFDM symbol of said DFT-S-OFDM signal format.

According to a ninth aspect of the invention; Propose a kind of descending HARQ is fed back with SR and carried out multiplexing method; May further comprise the steps: the OCC sequence transformation through the PUCCH resource that the alternative descending HARQ feedback that is disposed is corresponding is a redundant sequence, derives additional alternative PUCCH resource; From alternative PUCCH resource that is disposed and the additional alternative PUCCH resource that is derived from, select a PUCCH resource; And utilize selected PUCCH resource to transmit descending HARQ feedback; It is characterized in that SR is whether the OCC sequence through the corresponding PUCCH resource of descending HARQ feedback is that redundant sequence is indicated.

According to the tenth aspect of the invention; Propose a kind of descending HARQ is fed back with other UCI and carried out multiplexing method; May further comprise the steps: the alternative PUCCH form 1b resource that BS is distributed corresponding to data and make up corresponding to OCC sequence and the CS sequence of RS; Produce new PUCCH form 1b resource, the original more transmission degree of freedom of ratio that wherein new PUCCH form 1b resource can obtain according to channel selecting method; According to predefined mapping relations original descending HARQ feedback is mapped as the said transmission degree of freedom with other UCI.

According to an eleventh aspect of the invention, proposed a kind ofly will carry out multiplexing method, may further comprise the steps: abandon CSI information according to predefined rule based on the descending HARQ feedback of DFT-S-OFDM signal with based on the CSI of PUCCH form 2; Utilization is sent descending HARQ feedback corresponding to PUCCH form 2 resources of CSI.

According to a twelfth aspect of the invention, proposed a kind of transmission pre-treating method of descending HARQ feedback information of subscriber equipment, it is characterized in that: the descending HARQ feedback information of correspondence that distributes on the descending PCC does not adopt binding; The descending HARQ feedback information of correspondence that distributes on the descending SCC adopts binding.

According to a thirteenth aspect of the invention, proposed a kind of method, may further comprise the steps: for subscriber equipment distributes a PUCCH form 2 resources semi-staticly to user equipment allocation PUCCH form 2 resources; For subscriber equipment dynamically distributes the 2nd PUCCH form 2 resources; Send the information of the relative position of indication the 2nd PUCCH form 2 resources and a PUCCH form 2 resources to subscriber equipment.

According to a fourteenth aspect of the invention, the descending HARQ feedback states that has proposed a kind of subscriber equipment end bundlees mapping method, comprising: be the quantity of the descending HARQ feedback states of ACK continuously in the statistics binding window; Concern based on predetermined mapped; According to the quantity of being added up; Confirm the result of descending HARQ feedback states binding mapping; Said predetermined mapped contextual definition the quantity of ACK continuously in result and the binding window of descending HARQ feedback states binding mapping, make the result of descending HARQ feedback states binding mapping can reflect in the binding window quantity of ACK continuously.

Like this, the challenge in the above LTE Rel-10 ascending control information transmission has proposed flexible and efficient solution.

Description of drawings

Through 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 system and adopts the regular circulation prefix, and PUCCH form 2 has adopted the sketch map of descending HARQ feedback and the method for CSI multiplexing transmission under the SORTD diversity technique prerequisite;

Fig. 2 shows the hardware capability block diagram according to subscriber equipment 200 of the present invention;

Fig. 3 shows the hardware capability block diagram according to another subscriber equipment 300 of the present invention;

Fig. 4 shows the hardware capability block diagram of the another subscriber equipment 300 according to the present invention;

Fig. 5 shows the hardware capability block diagram according to base station 500 of the present invention;

Fig. 6 shows the hardware capability block diagram according to another base station 600 of the present invention;

Fig. 7 shows the hardware capability block diagram according to another base station 700 of the present invention;

Fig. 8 shows the hardware capability block diagram of the subscriber equipment 800 of first multiplexing method in the realization according to a second embodiment of the present invention;

Fig. 9 shows the hardware capability block diagram of the subscriber equipment 900 of second multiplexing method in the realization according to a second embodiment of the present invention;

Figure 10 shows the hardware capability block diagram of the subscriber equipment 1000 of first and second multiplexing methods in the associating realization according to a second embodiment of the present invention;

Figure 11 shows the hardware capability block diagram of the base station 1100 of first Deplexing method in the realization according to a second embodiment of the present invention;

Figure 12 shows the hardware capability block diagram of the base station 1200 of second Deplexing method in the realization according to a second embodiment of the present invention;

Figure 13 shows the hardware capability block diagram of the base station 1300 of first and second Deplexing methods in the associating realization according to a second embodiment of the present invention;

Figure 14 shows system and adopts the regular circulation prefix, the sketch map of the form of the DFT-S-OFDM signal that descending HARQ feedback adopts;

Figure 15 shows system and adopts the regular circulation prefix, the sketch map of the form of the DFT-S-OFDM signal when descending HARQ feedback and SRS signal multiplexing;

Figure 16 shows system and adopts extended cyclic prefix, the sketch map of the form of the DFT-S-OFDM signal that descending HARQ feedback adopts;

Figure 17 shows system and adopts extended cyclic prefix, the sketch map of the another kind of form of the DFT-S-OFDM signal that descending HARQ feedback adopts;

Figure 18 shows system and adopts extended cyclic prefix, the sketch map of the form of the DFT-S-OFDM signal when descending HARQ feedback and SRS signal multiplexing;

The DFT-S-OFDM signal multiplexer 1900 of descending HARQ feedback and SRS signal when Figure 19 shows system's employing extended cyclic prefix;

Figure 20 shows and DFT-S-OFDM signal multiplexer shown in Figure 19 1900 corresponding DFT-S-OFDM signal demodulation multiplexers 2000;

Figure 21 shows system and adopts regular circulation prefix, the sketch map of the transmission structure of PUCCH form 1b;

Figure 22 shows the hardware capability block diagram of the subscriber equipment 2200 of first multiplexing method in the realization according to a fifth embodiment of the invention;

Figure 23 shows the hardware capability block diagram of the subscriber equipment 2300 of second multiplexing method in the realization according to a fifth embodiment of the invention;

Figure 24 shows the hardware capability block diagram of the base station 2400 of first Deplexing method in the realization according to a fifth embodiment of the invention;

Figure 25 shows the hardware capability block diagram of the base station 2500 of first Deplexing method in the realization according to a fifth embodiment of the invention;

Figure 26 shows the hardware capability block diagram of the subscriber equipment 2600 of the multiplexing method in the realization according to a sixth embodiment of the invention;

Figure 27 shows when all are descending and distributes corresponding downlink resource to give the sketch map that concentrates on the scene on the descending PCC;

Figure 28 shows the hardware capability block diagram of the subscriber equipment 2800 of the multiplexing method in the realization according to a seventh embodiment of the invention;

Figure 29 shows a kind of sketch map of distribution method of PUCCH form 2 resources of subscriber equipment;

Figure 30 shows the sketch map of distribution method of PUCCH form 2 resources of another kind of subscriber equipment;

Figure 31 shows the hardware capability block diagram of realization according to the resource allocation apparatus 3100 of the resource allocation methods in the eighth embodiment of the present invention; And

Figure 32 shows a kind of descending HARQ feedback states binding mapping device 3200 of subscriber equipment end.

Embodiment

At length set forth realization of the present invention for clear, provided specific embodiments more of the present 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, in the description process, having omitted is unnecessary details and function for the present invention with reference to the accompanying drawings, obscures to prevent understanding of the present invention caused.

In LTE Rel-8, if UE does not have transfer of data in some sub-frame of uplink (subframe), but there is CSI to transmit, CSI will transmit on PUCCH with the form of format 2; If same UE has descending HARQ feedback to transmit, descending HARQ feedback will be transmitted on PUCCH with the form of format1a/1b.When CSI and descending HARQ feedback need multiplexing transmission; Two kinds of schemes are arranged: as Radio Resource control (Radio Resource Control; RRC) signaling configuration simultaneousAckNackAndCQI is a fictitious time; CSI information will be dropped, and have only descending HARQ feedback information on PUCCH, to transmit separately with the form of format 1a/1b; If configuration simultaneousAckNackAndCQI is a true time, be divided into following two kinds of situation again.When system adopts conventional (normal) Cyclic Prefix (Cyclic Prefix; CP) time; Descending HARQ feedback will be transmitted on PUCCH with the form of format 2a/2b with CSI together; The information of 1 or 2 bit of wherein descending HARQ feedback will adopt binary phase shift keying (BinaryPhase Shift Keying; BPSK) or QPSK (Quadrature Phase ShiftKeying QPSK) is modulated onto on the secondary series reference signal of PUCCH form 2 forms of each time slot (slot) of corresponding sub-frame of uplink; When system adopts extended cyclic prefix (extended CP); Because interior PUCCH form 2 forms of each time slot this moment have only a row reference signal; Be difficult to the form of descending HARQ feedback information with phase difference is embedded in the reference signal; UE will form the coded data of 20 bits to descending HARQ feedback and CSI combined coding this moment, and the form by the PUCCH form 2 of expanding CP sends then.

Embodiment 1:

The descending HARQ feedback of LTE Rel-8 still is suitable in LTE Rel-10 with the multiplexing transmission mode of CSI; Yet the increase of considering descending HARQ number of bits of feedback among the LTE Rel-10 collects transmission technology with dividing the SORTD that PUCCH form 2 forms are introduced, and descending HARQ feedback needs further optimization with the multiplexing mode of CSI.For this reason, a kind of optimization multiplexing method that the present invention proposes, this method may further comprise the steps: original descending HARQ feedback information is mapped as the descending HARQ feedback information of many groups, and every group of descending HARQ feedback information is associated with one of many antennas; And utilize PUCCH resources different on the respective antenna, send CSI and respectively organize descending HARQ feedback information through mapping.Corresponding with this optimization multiplexing method; The invention allows for a kind of Deplexing method; This method may further comprise the steps: receive with the corresponding different PUCCH resource of many transmit antennas on CSI and many groups of descending HARQ feedback informations through shining upon, every group of descending HARQ feedback information is associated with one of many antennas; And will separate and be mapped as original descending HARQ feedback information through many groups of descending HARQ feedback informations of mapping.Below, be that example is described this optimization method of the present invention with two antenna SORTD diversity modes.

As shown in Figure 1, adopted the SORTD mode after, CSI will adopt different PUCCH form 2 resources to transmit on the up transmitting antenna of each root respectively with the form of PUCCH form 2.The BS of hypothesis below in the present embodiment be true through RRC with the simultaneousAckNackAndCQI state configuration of UE, promptly allows descending HARQ feedback and CSI multiplexing.

When adopting conventional CP; And need it be 2 o'clock with the multiplexing descending HARQ number of bits of feedback of CSI; Can adopt the method for Fig. 1 (a), the secondary series reference signal that directly is modulated to each time slot of each corresponding PUCCH resource of every antenna after the descending HARQ feedback repetition with dibit gets on; Method that also can similar Fig. 1 (b), the descending HARQ feedback with dibit is extended to tribit earlier, as with (a1; A2) expand to (a1, a2, a3=a1 xor a2); Wherein xor is an xor operation; And then with tribit (a1, a2 a3) get on according to the secondary series reference signal that the order of Fig. 1 (b) is modulated to different PUCCH resource different time-gaps.Should be noted in the discussion above that xor operation only is a by way of example that can realize descending HARQ feedback information expansion, one of ordinary skill in the art also are easy to expect adopting other logical operations to operate expanded downstream HARQ feedback information.

When demultiplexing, from the direct demodulation of secondary series reference signal of each time slot of each the PUCCH resource corresponding with every transmit antennas obtain two descending HARQ feedback bits (a1, a2), (a1 a2) merges into one group with two groups of descending HARQ feedback bits again; Perhaps obtain the sequence arrangement of (a1, a2, a3=a1 xor a2) from the secondary series demodulation reference signal of each time slot of each PUCCH resource; Again according to a3 with (a1, a2) XOR relation will be by the tactic (a1 of Fig. 1 (b); A2, a3) merge into one group (a1, a2).

When adopting conventional CP, and need be that 4 (bit is designated as a1, a2 with the multiplexing descending HARQ number of bits of feedback of CSI; A3 can be according to the method for Fig. 1 (c) in the time of a4), secondary series reference signal chopping phase two bits together of two time slots of the PUCCH resource of every antenna correspondence; Secondary series reference signal modulation (a1 like two time slots of the corresponding PUCCH resource of first antenna; A2), and the secondary series reference signal modulation of two time slots of the PUCCH resource of second antenna correspondence (a3, a4); Also can be according to the method for Fig. 1 (d), four descending HARQ feedback bits of two antenna cross modulation are further to obtain the antenna diversity gain.

Correspondingly; When demultiplexing; Obtain descending HARQ feedback bits (a1 from the secondary series demodulation reference signal of two time slots of the PUCCH resource corresponding with first transmit antennas; A2), from the secondary series demodulation reference signal of two time slots of the corresponding PUCCH resource of second antenna obtain (a3, a4); Perhaps from the secondary series reference signal of two time slots of the corresponding PUCCH resource of two antennas intersect demodulation obtain descending HARQ feedback bits (a1, a2) with (a3, a4); Then the descending HARQ feedback bits of two parts is combined as original descending HARQ feedback bits (a1; A2, a3, a4).

As the conventional CP of employing, and need be 3 o'clock with the multiplexing descending HARQ number of bits of feedback of CSI, a kind of method be directly to adopt the mode of Fig. 1 (b); Can adopt Fig. 1 (c) and mode (d) in addition; Just (a3, a4) degeneracy is a bit a3, adopts the BPSK modulation.

Correspondingly; When demultiplexing; (a1 a2), obtains (a3) from the secondary series demodulation reference signal of two time slots of the corresponding PUCCH resource of second antenna to obtain descending HARQ feedback bits from the secondary series demodulation reference signal of two time slots of the PUCCH resource corresponding with first antenna; Perhaps from the secondary series demodulation reference signal of two time slots of the corresponding PUCCH resource of two antennas obtain descending HARQ feedback bits (a1, a2) with (a3), then with the descending HARQ feedback bits of two parts be combined as original descending HARQ feedback bits (a1, a2, a3).

When adopting expansion CP; And need it be 2 o'clock with the multiplexing descending HARQ number of bits of feedback of CSI; Can these two bits and CSI combined coding be formed the coded data of 20 bits, the form by the PUCCH form 2 of expansion CP adopts different PUCCH resources to send on two up transmitting antennas then; Also can be earlier the descending HARQ feedback of dibit be extended to tribit, as will (a1 a2) expands to (a1, a2; A3=a1 xor a2), wherein xor is an xor operation, and then with tribit (a1, a2; A3) be divided into two groups (a1, a2), (a2; A3), form the coded data of 20 bits respectively with the CSI combined coding, on two up transmitting antennas, adopt different PUCCH resources to send by the form of PUCCH form 2 of expansion CP respectively then.

Correspondingly, when demultiplexing, receive combined coding data, these data carried out combined decoding from two up transmitting antennas, obtain CSI and two groups of descending HARQ feedback bits (a1, a2), (a1 a2) merges into one group with two groups of descending HARQ feedback bits again; Perhaps receive combined coding data, these data carried out combined decoding from two up transmitting antennas, obtain CSI and two groups of descending HARQ feedback bits (a1, a2), (a2; A3), again according to a3 with (a1, a2) XOR relation is with (a1; A2), (a2, a3) merge into one group (a1, a2).

Expand CP when adopting, and need be 3 o'clock, with tribit (a1 with the multiplexing descending HARQ number of bits of feedback of CSI; A2; A3) be divided into two groups (a1, a2), (a3); Form the coded data of 20 bits respectively with the CSI combined coding, on two up transmitting antennas, adopt different PUCCH resources to send by the form of PUCCH form 2 of expansion CP respectively then.

Correspondingly, when demultiplexing, receive combined coding data from two up transmitting antennas; These data are carried out combined decoding, obtain CSI and two groups of descending HARQ feedback bits (a1, a2); (a3); Then with two groups of descending HARQ feedback bits be combined as original descending HARQ feedback bits (a1, a2, a3).

Expand CP when adopting, and need be 4 o'clock, with four bit (a1 with the multiplexing descending HARQ number of bits of feedback of CSI; A2, a3 a4) is divided into two groups of (a1; A2), (a3, a4); Form the coded data of 20 bits respectively with the CSI combined coding, on two up transmitting antennas, adopt different PUCCH resources to send by the form of PUCCH form 2 of expansion CP respectively then.

Correspondingly, when demultiplexing, receive combined coding data from two up transmitting antennas; These data are carried out combined decoding, obtain CSI and two groups of descending HARQ feedback bits (a1, a2); (a3 a4), is combined as original descending HARQ feedback bits (a1 with two groups of descending HARQ feedback bits then; A2, a3, a4).

Should be noted in the discussion above that above specific embodiment is that example describes principle of the present invention and realization with two system of transmit antennas only, but the present invention is not limited only to be applied to two system of transmit antennas, also is applicable to the multi-transmitting antenna system that adopts two above antennas.Along with the increase of antenna amount, the mode that the descending HARQ feedback bits of predetermined quantity is mapped to the many group descending HARQ feedback bits identical with antenna amount correspondingly changes.One of ordinary skill in the art can have the system of two above antennas with the application of the present invention on the dual-antenna system that adopts the SORTD diversity mode to other according to its professional knowledge and working experience direct, beyond all doubtly.

[hardware capability realization]

Fig. 2 shows the hardware capability block diagram according to subscriber equipment 200 of the present invention.

As shown in Figure 2, subscriber equipment 200 comprises: map unit 210, be used for original descending HARQ feedback information is mapped as the descending HARQ feedback information of many groups, and every group of descending HARQ feedback information is associated with one of many antennas; And transmitting element 230, be used to utilize PUCCH resources different on the respective antenna, send CSI and respectively organize descending HARQ feedback information through mapping.

Fig. 3 shows the hardware capability block diagram according to another subscriber equipment 300 of the present invention, and solid box is represented necessary assembly among the figure, and frame of broken lines is represented optional components.

As shown in Figure 3, multiplexing together the time with the mode of reference signal modulation and CSI when descending HARQ feedback information, except the map unit 310 identical with map unit 210, subscriber equipment 300 can also comprise: transmitting element 330.Transmitting element 330 comprises: modulating unit 340 is used for respectively organizing the predetermined reference signal that descending HARQ feedback information is modulated to different PUCCH resources on the respective antenna respectively through mapping.And said transmitting element 330 also is suitable for utilizing PUCCH resources different on the respective antenna, and transmission CSI and each are organized modulated predetermined reference signal.

Fig. 4 shows the hardware capability block diagram according to another subscriber equipment 400 of the present invention, and solid box is represented necessary assembly among the figure, and frame of broken lines is represented optional components.

As shown in Figure 4, when descending HARQ feedback information with multiplexing together the time with the form of CSI combined coding, except the map unit 410 identical with map unit 210, subscriber equipment 400 can also comprise: transmitting element 430.Transmitting element 430 comprises: combined coding unit 420 is used for CSI is carried out combined coding respectively with the descending HARQ feedback information of respectively organizing that warp shines upon, to form many group combined coding information.And said transmitting element 430 also is suitable for utilizing PUCCH resources different on the respective antenna, sends the combined coding information of respectively organizing.

Fig. 5 shows the hardware capability block diagram according to base station 500 of the present invention.

As shown in Figure 5; Base station 500 comprises: receiving element 520; Be used to receive with the corresponding different PUCCH resource of many transmit antennas on CSI and through many groups of descending HARQ feedback informations of mapping, every group of descending HARQ feedback information is associated with one of many antennas; And separate map unit 540, be used for being mapped as original descending HARQ feedback information with separating through many groups of descending HARQ feedback informations of mapping.

Fig. 6 shows the hardware capability block diagram according to another base station 600 of the present invention.Solid box is represented necessary assembly among the figure, and frame of broken lines is represented optional components.

As shown in Figure 6, when descending HARQ feedback information multiplexing together the time with the mode of reference signal modulation and CSI, except with separate map unit 540 identical separating the map unit 640, base station 600 can also comprise: receiving element 620.Receiving element 620 comprises: demodulating unit 310 is used for the predetermined reference signal on the different PUCCH resources is carried out demodulation, to obtain respectively organizing descending HARQ feedback information through mapping.And said receiving element 620 also be suitable for receiving with the corresponding different PUCCH resource of many transmit antennas on CSI and the modulated predetermined reference signal of many groups.

Fig. 7 shows the hardware capability block diagram according to another base station 700 of the present invention.Solid box is represented necessary assembly among the figure, and frame of broken lines is represented optional components.

As shown in Figure 7, when descending HARQ feedback information with multiplexing together the time with the form of CSI combined coding, except with separate map unit 540 identical separating the map unit 640, base station 700 can also comprise: receiving element 720.Receiving element 720 comprises: combined decoding unit 330 is used for every group of combined coding information is carried out combined decoding, to obtain CSI and respectively to organize descending HARQ feedback information through mapping.And said receiving element 720 also be suitable for receiving with the corresponding different PUCCH resource of many transmit antennas on many groups combined coding information.

Embodiment 2:

The descending HARQ feedback of LTE Rel-8 still is suitable in LTE Rel-10 with the multiplexing transmission mode of CSI, yet considers the increase of descending HARQ number of bits of feedback among the LTE Rel-10, and descending HARQ feedback needs further to optimize with the multiplexing mode of CSI.For this reason, a kind of optimization multiplexing method that the present invention proposes, this method may further comprise the steps: descending HARQ feedback information is divided into first and second portion; The first and the CSI of descending HARQ feedback information are carried out combined coding, thereby CSI is in the same place with the first of descending HARQ feedback information is multiplexing; And it is the second portion of descending HARQ feedback information is together multiplexing with the mode and the CSI of reference signal modulation.Corresponding with this optimization multiplexing method; The invention allows for a kind of Deplexing method; This method may further comprise the steps: receive the first of descending HARQ feedback information and the combined coding result of CSI; Second portion to descending HARQ feedback information carries out demodulation with the mode and the multiplexing part together of CSI of reference signal modulation simultaneously, obtains the second portion of descending HARQ feedback information; First and CSI to descending HARQ feedback information carry out combined decoding through the part of combined coding mode multiplexing transmission, obtain the first and the CSI of descending HARQ feedback information; And the above two are formed complete descending HARQ feed back, also obtained CSI simultaneously.

Adopt conventional CP with system below, and need be 4 with the multiplexing descending HARQ number of bits of feedback of CSI (be designated as a1, a2, a3 a4) describes for example.The descending HARQ feedback of this moment can be divided into two groups of (a1; A2) and (a3; A4); Wherein one group of information bit corresponding with CSI carries out combined coding and (forms the coded data of 20 bits such as adopting with the LTE Rel-8CSI similar Reed Muller sign indicating number (20, A)) of encoding, put into the non-reference signal part of PUCCH form 2b to be sent; Another group is modulated to the QPSK symbol, and the secondary series reference signal that is modulated to each time slot of PUCCH form 2b to be sent then gets on; The signal that then will generate good PUCCH form 2b form sends can realize the descending HARQ feedback information of 4 bits and the multiplexing transmission of CSI.

Correspondingly, when demultiplexing, BS extracts the combined coding data of descending HARQ feedback first and CSI from the data division of PUCCH form 2b, and it is carried out combined decoding, thus obtain the first that descending HARQ feeds back (a1, a2) and CSI; And, BS from the reference signal of PUCCH form 2b partly demodulate descending HARQ feedback second portion (a3, a4).At last, BS with the combination of this two parts promptly obtained complete descending HARQ feedback (a1, a2, a3, a4) and CSI.

A kind of optimization multiplexing method that the invention allows for, this method may further comprise the steps: descending HARQ feedback information is compressed; Descending HARQ feedback information and CSI after the compression are carried out combined coding; And utilize the descending HARQ feedback information after the PUCCH resource is sent CSI and the compression behind the combined coding.Corresponding with this optimization multiplexing method; The invention allows for a kind of Deplexing method; This method may further comprise the steps: receive the descending HARQ feedback information on the PUCCH resource, said descending HARQ feedback information is the combined coding result of the descending HARQ feedback information of CSI and warp compression; Said descending HARQ feedback information is carried out combined decoding, obtain CSI and descending HARQ feedback information respectively through compressing; Descending HARQ feedback information to through compression decompresses, and obtains original descending HARQ feedback information.

Adopt expansion CP with system below, and need make an explanation for example greater than 2 with the multiplexing descending HARQ number of bits of feedback of CSI.Can be divided into three kinds of situation this moment: when the corresponding bit number of CSI and descending HARQ number of bits of feedback sum are no more than the maximum number bits that PUCCH form 2 supports (as 11 or 13; Considered the bit number that bit number that the present PUCCH form 2 of LTE Rel-8 can be supported or PUCCH encoder maximum possible are supported respectively); Can consider CSI and descending HARQ feedback combined coding (such as adopting the similar Reed Muller sign indicating number (20 of encoding with LTE Rel-8CSI; A)), transmit by the form of PUCCH form 2 of expansion CP then; When the corresponding bit number of CSI and descending HARQ number of bits of feedback sum surpass the maximum number bits that PUCCH form 2 supports; Can consider descending HARQ feedback states is carried out various squeeze operations; Like spatial domain binding (spatial bundling); Time domain bundlees (time domain bundling) and strides CC binding etc., produces two bits afterwards, transmits with the form by the PUCCH form 2 of expanding CP behind the CSI combined coding; Also can what be, directly descending HARQ feedback states carried out squeeze operation and produce two bits, transmit with the form by the PUCCH form 2 of expanding CP behind the CSI combined coding regardless of CSI corresponding bit number and descending HARQ number of bits of feedback sum.

Correspondingly, when demultiplexing, can obtain CSI and descending HARQ feedback information through the combined coding result who receives being carried out combined decoding through compressing.Then, the descending HARQ feedback information through compression is decompressed, obtain original descending HARQ feedback information.

One of ordinary skill in the art are easy to expect, can optimize multiplex mode with above two kinds and be used in combination, further to be optimized multiplexing.

[hardware capability realization]

Fig. 8 shows the hardware capability block diagram of the subscriber equipment 800 of first multiplexing method in the realization according to a second embodiment of the present invention.

As shown in Figure 8, subscriber equipment 800 comprises: division unit 810 is used for descending HARQ feedback information is divided into two parts; Combined coding unit 820 is used for a part and the original CSI information combined coding of original descending HARQ feedback information are produced coded bit; And transmitting element 830, the part and the original CSI information combined coding generation coded bit that are used to send original descending HARQ feedback information, the another part with original descending HARQ feedback information is modulated to the reference signal part of sending signal simultaneously.

Fig. 9 shows the hardware capability block diagram of the subscriber equipment 900 of second multiplexing method in the realization according to a second embodiment of the present invention.

As shown in Figure 9, subscriber equipment 900 comprises: compression unit 840 is used for original descending HARQ feedback information is compressed; Combined coding unit 920 is used for original descending HARQ feedback information and original CSI information combined coding through compression are produced coded bit; And transmitting element 930, the original descending HARQ feedback information and the original CSI information combined coding that are used to send through compression produce coded bit.

Figure 10 shows the associating realization hardware capability block diagram of the subscriber equipment 1000 of first and second multiplexing methods in 2 according to a second embodiment of the present invention.

Shown in figure 10, subscriber equipment 1000 comprises: division unit 1010 is used for descending HARQ feedback information is divided into two parts; Compression unit 1020 is used for the part of original descending HARQ feedback information is compressed; Combined coding unit 1030 will be through a part and the original CSI information combined coding generation coded bit of the original descending HARQ feedback information of compression; And transmitting element 1040, sending a part and original CSI information combined coding generation coded bit through the original descending HARQ feedback information of compression, the another part with original descending HARQ feedback information is modulated to the reference signal part of sending signal simultaneously.

Figure 11 shows the hardware capability block diagram of the base station 1100 of first Deplexing method in the realization according to a second embodiment of the present invention.

Shown in figure 11; Base station 1100 comprises: receiving element 1110; Be used to receive the first of descending HARQ feedback information and the combined coding result of CSI; Second portion to descending HARQ feedback information carries out demodulation with the mode and the multiplexing part together of CSI of reference signal modulation simultaneously, obtains the second portion of descending HARQ feedback information; Combined decoding unit 1120 is used for the first and the CSI of descending HARQ feedback information are carried out combined decoding through the part of combined coding mode multiplexing transmission, obtains the first and the CSI of descending HARQ feedback information; And assembled unit 1130, be used for the above two are formed complete descending HARQ feedback, also obtained CSI simultaneously.

Figure 12 shows the hardware capability block diagram of the base station 1200 of second Deplexing method in the realization according to a second embodiment of the present invention.

Shown in figure 12, base station 1200 comprises: receiving element 1210, be used to receive the descending HARQ feedback information on the PUCCH resource, and said descending HARQ feedback information is the combined coding result of the descending HARQ feedback information of CSI and warp compression; Combined decoding unit 1220 is used for said descending HARQ feedback information is carried out combined decoding, obtains CSI and the descending HARQ feedback information through compressing respectively; Decompress(ion) unit 1230 decompresses to the descending HARQ feedback information through compression, obtains original descending HARQ feedback information.

Figure 13 shows according to hardware capability block diagram of the present invention, that unite the base station 1300 of first and second Deplexing methods among the realization embodiment 2.

Shown in figure 13; Base station 1300 comprises: receiving element 1310; Be used to receive through the first of the original descending HARQ feedback information of compression and the combined coding result of CSI; Second portion to descending HARQ feedback information carries out demodulation with the mode and the multiplexing part together of CSI of reference signal modulation simultaneously, obtains the second portion of descending HARQ feedback information; Combined decoding unit 1320 is used for first and the CSI of original descending HARQ feedback information through compression carried out combined decoding through the part of combined coding mode multiplexing transmission, obtains first and CSI through the original descending HARQ feedback information that compresses; Decompress(ion) unit 1330, being used for the first's decompress(ion) of original descending HARQ feedback information through compression is the first of original descending HARQ feedback information; And assembled unit 1340, be used for the above two are formed complete descending HARQ feedback, also obtained CSI simultaneously.

Embodiment 3:

Can BS with descending HARQ feedback and CSI co-transmitted with decision UE through RRC configuration simultaneousAckNackAndCQI among the LTE Rel-8.In LTE Rel-10, because each descending CC all need feed back CSI that should CC, and these CSI must transmit on the proprietary up CC of same UE.This will cause the descending HARQ feedback and the probability of CSI multiplexing transmission to increase greatly.Yet up to the present, existing descending HARQ feedback is all imperfect with the scheme of CSI multiplexing transmission, all can the transmission quality of descending HARQ feedback and/or CSI be affected.Can consider to abandon CSI among the LTE Rel-8 saving descending HARQ feedback from damage, yet consider the increase greatly of both multiplexing probabilities among the LTE Rel-10, it also is worthless often abandoning CSI.Consider that descending CC can be divided into PCC and non-PCC among the LTE Rel-10; Can be divided into CQI, PMI, RI in the CSI feedback; CQI also can be divided into broadband CQI, subband CQI; Therefore can carry out difference to the multiplex mode of different CSI feedback kind on these different CC and descending HARQ feedback and treat, promptly important CSI feedback and the feedback multiplexed transmission of descending HARQ, not too important CSI feedback directly abandons.

For this reason, the present invention proposes and a kind of descending HARQ feedback is carried out multiplexing method with CSI, it is characterized in that: CSI that different descending CC are corresponding and/or dissimilar CSI are different with the multiplex mode that descending HARQ feeds back.This strategy both can carry out the setting of explicit (explicit) through the proprietary RRC signaling of extra UE that BS sends to UE, also can arrange according to the mode of implicit expression (implicit).Below through some these methods of example specific explanations:

For example; BS can be configured to the simultaneousAckNackAndCQI of UE only descending PCC or the pairing CSI of some other or a certain group CC to be fed back effectively through RRC; Promptly ought need descending HARQ feedback of co-transmitted and CSI; And when this CSI is the pairing CSI of descending PCC or some other or a certain group CC; The multiplexing transmission of descending HARQ feedback and CSI is followed simultaneousAckNackAndCQI, that is to say that simultaneousAckNackAnd-CQI is a true time, adopts the whole bag of tricks above-mentioned or that agreement has been stipulated with descending HARQ feedback and CSI multiplexing transmission; SimultaneousAckNackAndCQI is a fictitious time, abandons CSI, only transmits descending HARQ feedback.When appearing in the uplink frame simultaneously, abandon CSI without exception, only transmit descending HARQ feedback to the pairing CSI of those CC of simultaneousAckNackAndCQI invalid configuration and descending HARQ feedback.For because of abandoning the CC that CSI causes loss of throughput, BS can consider to let the UE CSI that these CC are corresponding feed back up through the mode that scheduling aperiodicity CSI reports.

Again for example, BS can be configured to the simultaneousAckNackAndCQI of UE only to a certain type CSI feedback effectively through RRC, such as only effectively to broadband (wideband) feedback, and invalid to subband (subband) feedback.Like this when the broadband of descending CC feedback needs co-transmitted with descending HARQ feedback; If simultaneousAckNackAndCQI is configured to very, then UE adopts the whole bag of tricks above-mentioned or that agreement has been stipulated that descending HARQ feedback is transferred to BS with CSI; If simultaneousAckNackAndCQI is configured to vacation, UE abandons CSI, only transmits descending HARQ feedback to BS.When the subband feedback of descending CC needs co-transmitted with descending HARQ feedback, abandon CSI without exception, only transmit descending HARQ feedback to BS.

More than two kinds of collocation methods also can comprehensively use, promptly BS is configured to the simultaneousAckNackAndCQI of UE only to some CSI feedback of some CC effectively, concrete grammar with above said consistent.

Through this method, can guarantee that important CSI feedback can not be dropped, also can guarantee descending HARQ feedback can be not often because of causing serious decreased performance with CSI is feedback multiplexed.

Because it is multiplexing and do not change the concrete multiplex mode of descending HARQ feedback and particular type or the pairing CSI of specific CC that this scheme is just carried out selectivity to particular type and/or the pairing CSI of specific CC; The pairing Deplexing method of this scheme still can be continued to use the Deplexing method of prior art or adopt the Deplexing method in the previous embodiment, perhaps needn't adopt Deplexing method (situation that all is dropped corresponding to CSI).

[hardware capability realization]

For what realize present embodiment CSI is carried out the multiplexing strategy of selectivity, only need in prior art or aforementioned subscriber equipment, to add simultaneousAckNackAndCQI validity dispensing unit and CSI discrimination unit.Said simultaneousAckNackAndCQI validity dispensing unit is used for, and through the mode of explicit setting or implicit expression agreement, configuration simultaneousAckNackAndCQI CSI corresponding to which CC and/or which type is effective.Said CSI discrimination unit is used for, and distinguishes simultaneousAckNackAndCQI to its effective or invalid CSI.

Embodiment 4:

With similar among the LTE Rel-8, can the descending HARQ feedback among the LTE Rel-10 transmit the configuration that also can receive RRC signaling ackNackSRS-Simultaneous Transmission simultaneously with SRS.If ackNackSRS-Simultaneous Transmission is false, whenever feeding back with SRS, descending HARQ in same sub-frame of uplink, occurs, and UE will abandon SRS, only transmit descending HARQ feedback.If ackNackSRS-Simultaneous Transmission is true; The descending HARQ number of bits of feedback that need transmit as UE is smaller or equal to 4 the time; The descending HARQ feedback transmission method of UE is to select based on the channel of PUCCH form 1b, and descending HARQ feedback will adopt the PUCCH form 1b form and the SRS multiplexing transmission of the brachymemma identical with LTE Rel-8 this moment; The descending HARQ number of bits of feedback that need transmit as UE is greater than 4 the time, and the descending HARQ feedback transmission method of UE will adopt the signal based on DFT-S-OFDM, and descending HARQ feedback will specifically describe with the method for SRS multiplexing transmission below this moment.

In LTE Rel-10; In not having the sub-frame of uplink of transfer of data; If the descending HARQ number of bits of feedback that UE need transmit was greater than 4 o'clock; This type UE will adopt a kind of new signal based on DFT-S-OFDM to transmit descending HARQ feedback, shown in concrete structure such as Figure 14 (time slot that has shown a sub-frame of uplink, can with reference to non-patent literature R1-103506).At first (the forward error correction here can be that existing Reed Muller sign indicating number (32, O)) coding produces 32 bits among the LTERel-8 to descending HARQ feedback bits, passes through rate-matched (rate match) then and produces 48 bits through forward error correction; These coded bit are mapped as 24 QPSK modulation symbols after handling through scramblers subsequently, and (OrthogonalCover Code, 5 DFT-S-OFDM symbols that OCC) expand to a Resource Block of each time slot get on per 12 symbols through orthogonal code.(Reference Signal RS) takies the 2nd (symbol 1) and the 6th (symbol 5) DFT-S-OFDM symbol respectively to 2 reference signals in this structure.

Figure 14 does not consider descending HARQ feedback and the multiplexing situation of SRS; Figure 15 considers descending HARQ feedback of the 2nd time slot of some subframes and the multiplexing situation of SRS; Leave last DFT-S-OFDM symbol (symbol 6) for SRS and use, and be not used for transmitting descending HARQ feedback.This operation is that the OCC sequence that descending HARQ feedback is sent in the structure is that 5 to become length be 4 by the original length to the influence of descending HARQ feedback, and the quantity of the descending HARQ feedback of the UE that the 2nd of this subframe the time slot can be multiplexing in addition also becomes 4 by original 5.

What Figure 14 and Figure 15 all considered is the situation that system adopts conventional CP, and taking into account system does not use expansion CP.For this reason; The present invention proposes and under a kind of CP of expansion descending HARQ feedback and SRS are carried out multiplexing method; May further comprise the steps: descending HARQ feedback information is expanded on 4 in preceding 5 DFT-S-OFDM symbols of the DFT-S-OFDM signal format with 6 DFT-S-OFDM symbols, wherein RS is on the 3rd DFT-S-OFDM symbol; SRS is mapped as last DFT-S-OFDM symbol of said DFT-S-OFDM signal format.

For example said method is described below.When system adopts expansion CP; Because this moment, each time slot of sub-frame of uplink only had 6 DFT-S-OFDM symbols; 2 time slots of the sub-frame of uplink at the descending HARQ feedback place of this moment can be considered to adopt like Figure 16 or structure shown in Figure 17; With the difference of Figure 15 be that the position of the 7th the DFT-S-OFDM symbol (symbol 6) of each time slot is not reserved as conventional CP, but non-existent.Figure 16 is that with the difference of Figure 17 the time-domain position of second reference signal in each time slot is different, and laying method shown in Figure 17 can improve the precision of channel estimation under the said situation to a certain extent.

When system adopts expansion CP; And when considering descending HARQ feedback and SRS multiplexing; The 2nd time slot of the sub-frame of uplink at descending HARQ feedback place can be further considered and adopt structure shown in Figure 180; Last symbol (symbol 5) is left SRS for and is used, and descending HARQ feedback is only used 5 the DFT-S-OFDM symbols in front.Have only a symbol (symbol 2) to be used to transmit RS in 5 the DFT-S-OFDM symbols in front, it is that 4 OCC sequence is carried out the time domain expansion that all the other 4 DFT-S-OFDM signals adopt length, descending HARQ feedback that can 4 UE of multiplexing transmission.

One of ordinary skill in the art are easy to expect according to multiplexing method; Corresponding Deplexing method is: 4 descending HARQ feedback informations of extraction from preceding 5 DFT-S-OFDM symbols of DFT-S-OFDM signal format with 6 DFT-S-OFDM symbols, and wherein RS is on the 3rd DFT-S-OFDM symbol; And by last DFT-S-OFDM symbol SRS of said DFT-S-OFDM signal format.

[hardware capability realization]

The DFT-S-OFDM signal multiplexer 1900 of descending HARQ feedback and SRS signal when Figure 19 shows system's employing extended cyclic prefix.Of Figure 19; This signal multiplexer 1900 comprises: descending HARQ feedback expanding element 1910; Be used for descending HARQ feedback information is expanded to 4 of preceding 5 DFT-S-OFDM symbols of the DFT-S-OFDM signal format with 6 DFT-S-OFDM symbols, wherein RS is on the 3rd DFT-S-OFDM symbol; And SRS map unit 1920, be used for SRS is mapped as last DFT-S-OFDM symbol of said DFT-S-OFDM signal format.

Figure 20 shows corresponding multiplexing DFT-S-OFDM signal demodulation multiplexer 2000.Shown in figure 20, this signal demodulation multiplexer 2000 comprises: descending HARQ feedback extraction unit 1910, be used to carry out the inverse operation that descending HARQ feedback is expanded, and obtain descending HARQ feedback information; And SRS separates map unit 2020, and last the DFT-S-OFDM symbol de-maps that is used for said DFT-S-OFDM signal format is SRS.

Embodiment 5:

In LTE Rel-8, when descending HARQ feedback need be transmitted in same frame with SR (not having PUSCH this moment), UE will adopt the pairing PUCCH resource of SR to transmit 2 bit ACK/nack message of descending HARQ.In LTE Rel-10; Because the increase of descending HARQ number of bits of feedback, when descending HARQ feedback need be transmitted in same frame with SR (not having PUSCH this moment), UE need carry out various squeeze operations with descending HARQ feedback states; Bundle like the spatial domain; Time domain bundlees and strides CC binding etc., produces two bits afterwards, adopts descending HARQ feedback of the method multiplexing transmission identical with LTE Rel-8 and SR then.In LTERel-10, above method relatively is fit to be in the UE of power limited (power limited) state, and when UE was not in the power limited state, the method for needing can intactly send descending HARQ feedback information and SR to BS.

In LTE Rel-10; The descending HARQ number of bits of feedback that need transmit as UE is smaller or equal to 4 the time; The descending HARQ feedback transmission method of UE is to select based on the channel of PUCCH form 1b; If the resource quantity of alternative PUCCH form 1b is 4, the descending HARQ number of bits of feedback that this method maximum can be supported is 4; The descending HARQ number of bits of feedback that need transmit as UE is greater than 4 the time, and the descending HARQ feedback transmission method of UE is the signal based on DFT-S-OFDM, and the descending HARQ number of bits of feedback that this method maximum can be supported is 11.If the bit number of descending HARQ feedback is unfixed; But can confirm according to the quantity of the CC that is disposed with to the transmission mode of each CC configuration semi-staticly; During the descending HARQ number of bits of feedback that then can support less than maximum when the bit number of descending HARQ feedback (promptly 4 or 11), UE can feed back as a kind of special ACK/NACK bit the SR that needs 1 multiplexing bit all the time with descending HARQ send to BS.

For carrying out multiplexing with SR descending HARQ feedback better; The present invention proposes a kind of descending HARQ is fed back with SR and carry out multiplexing method; May further comprise the steps: the OCC sequence transformation through the PUCCH resource that the alternative descending HARQ feedback that is disposed is corresponding is a redundant sequence, derives additional alternative PUCCH resource; From alternative PUCCH resource that is disposed and the additional alternative PUCCH resource that is derived from, select a PUCCH resource; And utilize selected PUCCH resource to transmit descending HARQ feedback; It is characterized in that SR is whether the OCC sequence through the corresponding PUCCH resource of descending HARQ feedback is that redundant sequence is indicated.

The descending HARQ number of bits of feedback that need transmit with UE among the LTE Rel-10 below is that example makes an explanation smaller or equal to 4 o'clock situation.This moment, the descending HARQ feedback transmission method of UE was to select based on the channel of PUCCH form 1b.Shown in figure 21 when adopting conventional CP for system LTEPUCCH form 1b send structure chart (when system adopts expansion CP) as long as the RS of dash area is reduced by an OFDM symbol.With descending HARQ number of bits of feedback is 4 to be example; Be meant specifically that based on the channel selecting method of PUCCH form 1b this 4 bit is made up of two parts: from the alternative PUCCH form 1b resource (as 4) that is disposed, select one to be used to transmit descending HARQ feedback, this single-degree-of-freedom can reflect the log in the descending HARQ feedback bits ₂(4)=2 a bit; Constitute 2 bits in addition at selected PUCCH form 1b transmitted over resources QPSK symbol.Shown in figure 21, adopting conventional CP with system is example, and the QPSK symbol d that above-mentioned back 2 bits are mapped to is respectively through OCC sequence (s1; S2, s3 is s4) with permanent envelope zero autocorrelation sequence (Const Amplitude Zero Auto-Corelation; CAZAC) cyclic shift (Cyclic Shift; CS) behind sequence (length is the OFDM sub-carrier number of a RB, the is 12 here) spread spectrum, two time slots (like the position of the corresponding d of Figure 15) of putting into a sub-frame of uplink transmit.The RS of this structure also transmits through putting into like Figure 15 shadow positions behind another OCC sequence (s1 ', s2 ', s3 ') and the CS sequence spread spectrum.In the LTE system, the resource of PUCCH form 1b is distinguished with the combination of OCC and CS sequence and is indicated.

In LTE Rel-10; In order in the method for selecting based on the channel of PUCCH form 1b, to add some degrees of freedom again to indicate extra SR information; Can utilize corresponding to the OCC sequence [1 1-1-1] of the redundancy of d and (notice and used [+1+1+1+1] among the LTE Rel-8; [+1-1+1-1], [+1-1-1+1], and do not use this redundant sequence).When system adopts expansion CP; The OCC sequence of operable redundancy corresponding to d is [1-1 1-1]; [1 1-1-1] (notice when expanding CP among the LTE Rel-8 and used [+1+1+1+1], [+1-1-1+1], and do not use described two redundant sequences).Utilize an object lesson of these redundant sequences to be: when there not being SR (to be that SR is negative, negative) to need when multiplexing that descending HARQ feedback is as described above based on the channel selecting method processing of PUCCH form 1b with descending HARQ feedback; When positive (positive) SR and descending HARQ feedback need when multiplexing; The OCC sequence corresponding to d of the format 1b resource of selecting based on the channel selecting method of PUCCH form 1b is used above-mentioned redundant sequence instead; Select when being conventional CP [1 1-1-1]; Select [1-1 1-1], one of [11-1-1] during expansion CP.This moment is corresponding to the CS sequence of d, all remain unchanged corresponding to OCC sequence and the CS sequence of RS.Correspondingly; During demultiplexing; BS has adopted above-mentioned redundant sequence if find the OCC sequence corresponding to d of PUCCH form 1b resource when resolving the feedback information of the sub-frame of uplink that possibly have SR, then know in this time descending HARQ feedback to have embedded positiveSR information; Otherwise think current no positive SR, promptly SR is negative.

Above method is seen and can be realized so equivalently from alternative PUCCH form 1b resource allocation angle: BS generally distributes 4 alternative PUCCH form 1b resources to give UE; Consider the extra SR that needs transmission 1 bit; BS can 4 alternative PUCCH form 1b resources of extra reallocation give UE, and these 4 extra PUCCH form 1b resources are to derive from through the OCC sequence corresponding to d of 4 original PUCCH form 1b resources is changed into redundant sequence.Such 8 resources select one of which can reflect 3 bits, constitute other 2 bits at this transmitted over resources QPSK, come to 5 bits, can be used for transmitting simultaneously the descending HARQ feedback of the positive SR and 4 bits of 1 bit.It should be noted that; Originally the CS sequence corresponding to d of 4 alternative PUCCH form 1b resources must have nothing in common with each other; This point divides timing to note at the alternative resource based on the channel selecting method of PUCCH form 1b; The distribution of considering this alternative resource is to realize semi-staticly, so this requires not so difficult realization.

Can find out from top description; It mainly is the PUCCH form 1b resource of selecting corresponding to d that channel is selected; Promptly corresponding to OCC and the CS sequence of d, then can obtain according to inferring with the mode of implicit expression corresponding to the OCC of d and CS sequence corresponding to the OCC of RS and CS sequence.If it is a pair of corresponding to the OCC of RS and the restriction of CS sequence to loosen this; Allow UE not only can select OCC and CS sequence corresponding to d; Also can select OCC and CS sequence corresponding to RS; The additional degree of freedom can be used to indicate SR, even other information, like extra descending HARQ feedback information etc.For this reason; The present invention proposes a kind of descending HARQ is fed back with other UCI and carry out multiplexing method; May further comprise the steps: the alternative PUCCH form 1b resource that BS is distributed corresponding to data and make up corresponding to OCC sequence and the CS sequence of RS; Produce new PUCCH form 1b resource, the original more transmission degree of freedom of ratio that wherein new PUCCH form 1b resource can obtain according to channel selecting method; According to predefined mapping relations original descending HARQ feedback is mapped as the said transmission degree of freedom with other UCI.

An example of said method is following: suppose that BS distributes 2 alternative PUCCH form 1b resources for a UE, by the resource of LTE Rel-8 be designated as (CS1, OCC1) with (CS2, OCC2), at CS1 and CS2; Under the prerequisite that OCC1 and OCC2 have nothing in common with each other, consider that RS selects, the resource that UE can be used to transmit based on PUCCH form 1b can be expressed as following four: (CS1, OCC1, CS1 '; OCC1 '), (CS1, OCC1, CS2 '; OCC2 '), (CS2, OCC2, CS1 '; OCC1 '), (CS2, OCC2, CS2 '; OCC2 '), wherein preceding two sequences representative of each is corresponding to OCC and the CS sequence of d, and latter two sequence is represented OCC and CS sequence, wherein " ' corresponding to RS " represent this OCC or CS sequence be from correspondence not with " ' " OCC and CS sequence with the determined sequence of mode of LTE Rel-8 implicit expression.Can find out from this example; (2 resources are corresponding to 1 bit from original 3 for the maximum number bits that UE can transmit; Add 2 bits of QPSK) (4 resources are corresponding to 2 bits to be increased to 4; Add 2 bits of QPSK), additional this 1 bit can be used to transmit the positive SR of 1 bit.When not having positive SR, UE can only use (CS1, OCC1, CS1 ', OCC1 '), (CS2, OCC2, CS2 ', OCC2 '), still compatible LTE Rel-8.

Correspondingly; During demultiplexing; BS need to each corresponding to data and detect (as carry out energy measuring, promptly first sequence is correlated with, and whether detected energy is greater than some thresholdings then) corresponding to the PUCCH form 1b resource that combination produced of the OCC sequence of RS and CS sequence; The QPSK symbol that carries in the PUCCH form 1b that adopts according to the UE that detects then and this form obtains all bits that UE transmits; Last according to the mapping method that defines in advance, from said bit, take out descending HARQ feedback and other UCI respectively.

It is pointed out that above-mentioned example is only having under 2 alternative PUCCH form 1b resource prerequisites, if the alternative PUCCH form 1b resource of distributing increases, the additional bits number that then increases can be more, concrete grammar with above-mentioned introduce identical, so repeat no more.

It is pointed out that in addition above-mentioned alternative PUCCH form 1b resource must be distributed in same Physical Resource Block (Physical Resource Block, PRB) within.

The descending HARQ number of bits of feedback that in LTE Rel-10, need transmit as UE is greater than 4 the time; The descending HARQ feedback transmission method of UE is the signal based on DFT-S-OFDM, and this moment, UE can convey to the base station through utilizing the phase difference like two RS of the same time slot among Figure 14～Figure 17 with the SR BPSK of 1 bit modulation back.

[hardware capability realization]

Figure 22 shows the hardware capability block diagram of the subscriber equipment 2200 of first multiplexing method in the realization according to a fifth embodiment of the invention.Shown in figure 22, subscriber equipment 2200 comprises: redundant sequence generation unit 2210, and the OCC sequence transformation that is used for through the PUCCH resource that the alternative descending HARQ feedback that is disposed is corresponding is a redundant sequence, derives additional alternative PUCCH resource; PUCCH resource selection unit 2220 is used for selecting a PUCCH resource according to SR from alternative PUCCH resource that is disposed and the additional alternative PUCCH resource that is derived from; And transmitting element 2230, be used to utilize selected PUCCH resource to send descending HARQ feedback; It is characterized in that SR is whether the OCC sequence through the corresponding PUCCH resource of descending HARQ feedback is that redundant sequence is indicated.

Figure 23 shows the hardware capability block diagram of the subscriber equipment 2300 of second multiplexing method in the realization according to a fifth embodiment of the invention.Shown in figure 23; Subscriber equipment 2300 comprises: new PUCCH form 1b resource generation unit 2310; The alternative PUCCH form 1b resource that is used for BS is distributed corresponding to data and make up corresponding to OCC sequence and the CS sequence of RS; Produce new PUCCH form 1b resource, the original more transmission degree of freedom of ratio that wherein new PUCCH form 1b resource can obtain according to channel selecting method; And map unit 2320, be used for being mapped as the said transmission degree of freedom with original descending HARQ feedback and other UCI are multiplexing according to predefined mapping relations.

Figure 24 shows the hardware capability block diagram of the base station 2400 of first Deplexing method in the realization according to a fifth embodiment of the invention.Shown in figure 24, said base station 2400 comprises: receiving element 2410 is used to receive the descending HARQ feedback information on the PUCCH form 1b resource; And detecting unit 2420, whether the OCC sequence that is used to detect the corresponding PUCCH form 1b resource of descending HARQ feedback information is redundant sequence, thereby has judged whether SR information multiplexing.

Figure 25 shows the hardware capability block diagram of the base station 2500 of first Deplexing method in the realization according to a fifth embodiment of the invention.Shown in figure 25, said base station 2500 comprises: new PUCCH form 1b resource detecting unit 2510, be used to detect and whether utilized new PUCCH form 1b resource, promptly whether utilize the transmission degree of freedom multiplexing descending HARQ feedback and other UCI; And separate map unit 2520, and be used for according to the predefined mapping relations of the transmission degree of freedom and descending HARQ feedback with other UCI, will transmit the degree of freedom and separate and be mapped as original descending HARQ feedback and other UCI.

Embodiment 6～8 has proposed the some kinds of methods relevant with the distribution of uplink control channel resource to some new problems that run in the design of LTE Rel-10 ascending control information transmission method.

Embodiment 6:

When if the descending HARQ feedback of the employing DFT-S-OFDM signal of UE transmission appears in the same uplink frame with the CSI feedback that adopts the transmission of PUCCH form 2 forms; UE can select to abandon the CSI feedback, uses CSI to feed back pairing PUCCH form 2 resources and transmits descending HARQ feedback.The base station can reckon with the situation of this descending HARQ feedback and CSI feedback " collision "; Therefore in the uplink frame that has this collision to take place; Script need distribute to this UE the DFT-S-OFDM resource can then distribute to other UE, to save the expense of up feedback.So the present invention proposes and a kind ofly will carry out multiplexing method, may further comprise the steps: abandon CSI information according to predefined rule based on the descending HARQ feedback of DFT-S-OFDM signal with based on the CSI of PUCCH form 2; Utilization is sent descending HARQ feedback corresponding to PUCCH form 2 resources of CSI.

Below further introduce said method for example.When descending HARQ feedback is collided with the CSI feedback; Also can define some rules in advance; Make some important CSI feedbacks can not be dropped, like RI feedback (a certain feedback kind), the CSI feedback (the CSI feedback that some descending CC are corresponding) that descending PCC is corresponding, the broadband CQI feedback (a certain type of CSI feedback that some/group CC is corresponding) that descending SCC is corresponding etc.For example; Can definition rule; When the RI feedback collision of the descending HARQ of UE feedback and all CC, and/or during all CSIs feedback collisions corresponding with descending PCC of descending HARQ feedback, and/or descending HARQ feedback and the pairing broadband CQI of descending SCC feed back when colliding; The compression of descending HARQ feedback is (for example) 2 bits; With based on the transmission of the CSI of PUCCH form 2 feedback, utilize the phase difference of two RS of the same time slot of PUCCH form 2 forms during like conventional CP, feed back combined coding etc. with CSI during expansion CP.UE can adopt that the preceding paragraph is described to replace the DFT-S-OFDM resource to transmit complete descending HARQ feedback with PUCCH form 2 resources outside the above rule.

Because it is multiplexing and do not change the concrete multiplex mode of descending HARQ feedback and CSI that this scheme is just carried out selectivity according to ad hoc rules to CSI in descending HARQ feedback during with the collision of CSI feedback; The pairing Deplexing method of this scheme still can be continued to use the Deplexing method of prior art or adopt the Deplexing method in the previous embodiment, perhaps needn't adopt Deplexing method (situation that all is dropped corresponding to CSI).

[hardware capability realization]

Figure 26 shows the hardware capability block diagram of the subscriber equipment 2600 of the multiplexing method in the realization according to a sixth embodiment of the invention.Shown in figure 26, subscriber equipment 2600 comprises: CSI discarding unit 2610 is used for abandoning CSI information according to predefined rule; Transmitting element 2620 utilizes corresponding to PUCCH form 2 resources of CSI and sends descending HARQ feedback.

Embodiment 7:

Shown in figure 27, when all downlink resources were given (downlink grant) and all concentrated on descending PCC and go up, the resource distribution mode of inheriting from the implicit expression of LTE Rel-8 can be used to solve the alternative resource assignment problem of selecting based on the channel of PUCCH form 1b.Shown in figure 27; Because two the pairing downlink resources of descending distribution corresponding to certain UE on descending PCC and the descending SCC are given all on descending PCC; Therefore the resource distribution mode according to the implicit expression of LTE Rel-8 can obtain two PUCCH form 1b resources, the alternative resource when transmitting descending HARQ feedback as this UE.Consider that based on the maximum descending HARQ feedback of supporting 3 bits of the channel selecting method of two PUCCH form 1b resources the bit number of the descending HARQ feedback of compressing UE of therefore need laying down a regulation is to adapt to above-mentioned feedback limit.For this reason, the present invention proposes a kind of transmission pre-treating method of descending HARQ feedback information of subscriber equipment, it is characterized in that: the descending HARQ feedback information of correspondence that distributes on the descending PCC does not adopt binding; The descending HARQ feedback information of correspondence that distributes on the descending SCC adopts binding.

When UE is many codeword transmission pattern (like the MIMO transmission mode) corresponding to the descending distribution of descending PCC and descending SCC, need the pairing descending HARQ feedback bits of the descending distribution on the descending SCC be carried out squeeze operation such as binding to produce 1 bit.The descending HARQ feedback of the common formation of the ACK/NACK information of 2 bits on this 1 bit and the PCC.

Should be noted that; More than feed back and adapt to descending HARQ number of bits of feedback limiting method and also go for other scenes through adopting the different disposal mode to handle the pairing descending HARQ of descending distribution on descending PCC and the descending SCC, and not only be confined to scene shown in Figure 27.

[hardware capability realization]

Figure 28 shows the hardware capability block diagram of the subscriber equipment 2800 of the multiplexing method in the realization according to a seventh embodiment of the invention.Shown in figure 28, subscriber equipment 2800 comprises: binding unit 2810 is used for only the descending HARQ feedback information of correspondence that distributes on the descending SCC being bundled; And transmitting element 2820, be used to send through the HARQ feedback information of the descending distribution correspondence on the descending SCC of binding with without the corresponding HARQ feedback information of descending distribution on the descending PCC of binding.

Embodiment 8:

Shown in figure 29, when descending HARQ number of bits of feedback when more (as greater than 4 bits), PUCCH form 2 is containers that descending HARQ feedback is transmitted in more satisfactory being used for.Need to consider the processing when the CSI feedback occurs with descending HARQ feedback simultaneously this moment; Because among the LTE Rel-8 owing to consider factor such as up covering; Do not allow to destroy uplink single-carrier property, therefore do not allow two PUCCH forms 2 yet and upload at same sub-frame of uplink.LTE Rel-10 relaxes the requirement of uplink single-carrier property to some extent; At least under the non-power limitation scene; If two PUCCH form 2 resources in the same sub-frame of uplink same Resource Block (ResourceBlock, RB) or still can consider among the contiguous RB to transmit together.Because corresponding PUCCH form 2 resources of CSI feedback are that UE is given in semi-static configuration; Another one also can consider to carry out semi-static distribution corresponding to PUCCH form 2 resources of descending HARQ feedback; But consider that the quantity of dispatching the UE that has disposed a plurality of descending CC in the sub-frame of uplink simultaneously is few; But the sum that has disposed the UE of a plurality of descending CC can have a lot, the above-mentioned waste that can cause the upload control resource to the method for carrying out semi-static distribution corresponding to PUCCH form 2 resources of descending HARQ feedback.For this reason, the present invention proposes a kind of method, may further comprise the steps: for subscriber equipment distributes a PUCCH form 2 resources semi-staticly to user equipment allocation PUCCH form 2 resources; For subscriber equipment dynamically distributes the 2nd PUCCH form 2 resources; Send the information of the relative position of indication the 2nd PUCCH form 2 resources and a PUCCH form 2 resources to subscriber equipment.

Said method below is described by way of example.Owing to generally can support 6 PUCCH form 2 resources according to the convention of LTE Rel-8 among a RB; Corresponding to PUCCH form 2 resource occupation of CSI feedback one of them; PUCCH form 2 resources corresponding to descending HARQ feedback can take in 5 remaining resources; The position of these 5 PUCCH form 2 resources can characterize through the relative position between PUCCH form 2 resources corresponding with the CSI feedback; This relative position can represent that offset value 1～5 can be represented this 5 PUCCH form 2 resources respectively with an offset.

If being BS, descending HARQ feedback resources passes through Downlink Control Information (DownlinkControl Information; DCI) notice is given each UE's; For example give transmission power control (the Transmit Power Control of 2 bits of the redundancy among the DCI through the downlink resource on the SCC; TPC) territory etc., the value of offset just needs restriction to some extent so.Such as the restriction of considering 2 bits, offset only can value 1～4, indicates 4 in above-mentioned 5 PUCCH form 2 resources.

Can predict; For some UE; Except feeding back corresponding PUCCH form 2 resources, in same RB, not necessarily there are idle PUCCH form 2 resources with its CSI; Because all PUCCH form 2 resources in might this RB are all occupied at present, perhaps because the long restriction of the bit of offset self can't be indicated to certain idle PUCCH form 2 resource.Following solutions are arranged this moment.

BS has the occupied information of all PUCCH form 2 resources, avoids dispatching this UE under the above-mentioned situation so BS can be chosen in, or some restrictions are done in its scheduling, to avoid the use of the descending HARQ feedback based on PUCCH form 2 resources; BS also can select to notify UE, and perhaps UE decides in its sole discretion according to some rule, under above-mentioned situation, abandons CSI and utilizes corresponding PUCCH form 2 resources of CSI to transmit descending HARQ feedback; Perhaps UE transmits through binding compression back descending HARQ feedback with the mode of CSI feedback according to LTE Rel-8; Perhaps UE uses those systems among the same RB to expand no PUCCH form 2 resources of leaving a blank because of considering time delay.

Like Figure 30, BS can also reserve PUCCH form 2 resources as descending HARQ feedback resources in each PUCCH form 2 Resource Block of reserving for the CSI feedback.Shown in figure 30,8 RB are divided into two groups, and each RB in every group reserves PUCCH form 2 resources in order to transmitting descending HARQ feedback all semi-staticly, remainingly are used for distributing to each UE semi-staticly and make the CSI feedback.This moment, above-mentioned offset can be defined as in order to indicating a certain group to reserve in PUCCH form 2 resources again, UE take which transmit descending HARQ feedback.Generally prior PUCCH form 2 resources that are configured to use a certain group (4 PUCCH form 2 resources are arranged in every group) of UE in order to transmit descending HARQ feedback semi-staticly, and offset then through DCI concrete which resource in the UE notice should be organized is used by this UE.When the descending HARQ feedback of UE was not collided with the CSI feedback, UE utilized the descending HARQ feedback of above-mentioned resource transmission.When the descending HARQ of UE feedback bumps with the CSI feedback, UE will ignore offset and utilize PUCCH form 2 resources that are in that reservation among the same RB with the CSI feedback resources that is disposed to transmit descending HARQ feedback.

Should be noted that; What discuss in the present embodiment is the distribution method that descending HARQ feeds back pairing resource; This resource allocation methods is equally applicable to other scenes that need use two PUCCH form 2 resources, like the distribution of second PUCCH form 2 resource under the SORTD send mode of PUCCH form 2.

[hardware capability realization]

Figure 31 shows the hardware capability block diagram of realization according to the resource allocation apparatus 3100 of the resource allocation methods in the eighth embodiment of the present invention.Shown in figure 31, resource allocation apparatus 3100 comprises: semi-static allocation units 3110 are used to subscriber equipment and distribute a PUCCH form 2 resources semi-staticly; Dynamic assignment unit 3120 is used to subscriber equipment and dynamically distributes the 2nd PUCCH form 2 resources; Relative position indicating member 3130, the information of sending the relative position of indication the 2nd PUCCH form 2 resources and a PUCCH form 2 resources to subscriber equipment

Embodiment 9:

In embodiment before; Have more and discuss when the descending HARQ feedback of UE is collided with the CSI feedback; Descending HARQ state is handled boil down to 2 bit feedback information through various bindings; Be embedded into then in the phase information of two RS of same time slot that CSI feeds back pairing PUCCH form 2 forms and go, can simultaneously descending HARQ feedback (imperfect) be fed back with CSI thus and send BS simultaneously to.

The mapping of descending HARQ state and above-mentioned 2 bit feedback information (b (0), b (1)) is as shown in table 1.Its meaning is each HARQ state of a process in the UE inspection binding window (bundling window); If all being NACK or UE, all HARQ states indicate (Downlink Assignment Index through descending distribution; DAI) find to have at least a discontinuous transmission (Discontinuous Transmission; DTX) exist, then descending HARQ state is mapped as (0,0); Otherwise the HARQ state that calculates in the binding window is the quantity of ACK, in table 1, selects 2 corresponding bit feedback information.

The descending HARQ feedback states binding of table 1 mapping

The effect of table 1 is: when DAI did not exist, whether table 1 can assist BS to judge in whole binding window, to exist to give the DTX that information dropout causes because of downlink resource; When DAI existed, table 1 can assist BS to judge that last downlink resource in the whole binding window gives information and whether lose.Although table 1 has been pointed out the quantity of the ACK in the binding window; But when this quantity and BS dispatch descending quantity allotted to UE when not being inconsistent; BS has no way of judging that the corresponding HARQ state of which descending distribution is ACK, has promptly correctly received which incorrect reception; Therefore can only all retransmit, cause the loss of throughput.For this reason, the descending HARQ feedback states that the present invention proposes a kind of subscriber equipment end bundlees mapping method, comprising: be the quantity of the descending HARQ feedback states of ACK continuously in the inspection binding window; Concern based on predetermined mapped; According to the quantity that is checked; Confirm the result of descending HARQ feedback states binding mapping; Said predetermined mapped contextual definition the quantity of ACK continuously in result and the binding window of descending HARQ feedback states binding mapping, make the result of descending HARQ feedback states binding mapping can reflect in the binding window quantity of ACK continuously.

The simple case of a said method is as shown in table 2:

The descending HARQ feedback states binding mapping scheme 1 that table 2 throughput strengthens

The meaning of table 2 is each HARQ states of a process in the UE inspection binding window, finds to have at least a discontinuous transmission DTX to exist if all HARQ states all are NACK or UE through descending distribution indication DAI, then descending HARQ state is mapped as (0,0); Begin to be continuously the HARQ amount of state of ACK otherwise calculate in the binding window from first descending HARQ state of correspondence that distributes, in table 2, select 2 corresponding bit feedback information.

The effect of table 2 is that BS can know partly that according to 2 bit feedback information which descending distribution correctly receives, and can improve downlink throughput capacity to a certain extent.

The problem of table 2 is: because the restriction of feedback information bits position long (2), different ACK quantity maybe be corresponding to identical feedback information continuously, and how much quantity that BS can't understand continuous ACK is on earth.A simple Enhancement Method is as shown in table 3:

The descending HARQ feedback states binding mapping scheme 2 that table 3 throughput strengthens

The quantity of continuous ACK in the binding window	b(0)，b(1)
		0 or UE detect DTX	0，0
1	1，1
		2	1，0
3	0，1
		4	0，1
5	0，1
		...	0，1

The benefit of table 3 is not have doubt, when the quantity of the continuous ACK of binding in the window more than or equal to 3 the time, feedback (0,1) without exception, BS can have doubt ground not know that first three descending distributions UE is correct reception at least.

It should be noted that table 2 and table 3 are prerequisite there to be DAI among the descending DCI.

[hardware capability realization]

Figure 32 shows a kind of descending HARQ feedback states binding mapping device 3200 of subscriber equipment end, comprising: quantity statistics unit 3210, and being used to add up in the binding window is the quantity of the descending HARQ feedback states of ACK continuously; Map unit 3220; Be used for concerning based on predetermined mapped; According to the quantity that is checked; Confirm the result of descending HARQ feedback states binding mapping, said predetermined mapped contextual definition the quantity of ACK continuously in result and the binding window of descending HARQ feedback states binding mapping, make the result of descending HARQ feedback states binding mapping can reflect in the binding window quantity of ACK continuously.

In above description, to each step, enumerated a plurality of instances, though the inventor indicates instance associated with each other as much as possible, this does not also mean that must there be corresponding relation in these instances according to corresponding label.As long as selected instance do not have contradiction between given condition, can in different steps, select the not corresponding instance of label to constitute the corresponding techniques scheme, such technical scheme also should be regarded 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 with 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 the necessary element of overall invention thought of embodiment 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 does not receive 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 accompanying claims.

Claims

1. one kind is carried out multiplexing method with descending HARQ feedback and CSI, may further comprise the steps:

Original descending HARQ feedback information is mapped as the descending HARQ feedback information of many groups, and every group of descending HARQ feedback information is associated with one of many antennas; And

Utilize PUCCH resources different on the respective antenna, send CSI and respectively organize descending HARQ feedback information through mapping.

2. method according to claim 1, wherein, the step of respectively organizing descending HARQ feedback information of sending CSI and warp mapping comprises:

To be modulated to respectively on the predetermined reference signal through the descending HARQ feedback information of respectively organizing of mapping, to form the modulated predetermined reference signal of many groups; And

Utilize PUCCH resources different on the respective antenna, transmission CSI and each are organized modulated predetermined reference signal.

3. method according to claim 1, wherein, the step of respectively organizing descending HARQ feedback information of sending CSI and warp mapping comprises:

CSI is carried out combined coding respectively with the descending HARQ feedback information of respectively organizing that warp shines upon, to form many group combined coding information; And

Utilize PUCCH resources different on the respective antenna, send the combined coding information of respectively organizing.

4. according to each described method in the claim 1 to 3, wherein, the mapping mode that original descending HARQ feedback information is organized descending HARQ feedback information at the most is following arbitrary mode:

In every group of the descending HARQ feedback information of many groups, repeat original descending HARQ feedback information;

Original descending HARQ feedback information is divided into the descending HARQ feedback information of many groups; Perhaps

Original descending HARQ feedback information is expanded, the descending HARQ feedback information after the expansion is divided into the descending HARQ feedback information of many groups.

5. method according to claim 4; Wherein, When the descending HARQ feedback information after original descending HARQ feedback information or the expansion was divided into the descending HARQ feedback information of many groups, the incidence relation of organizing descending HARQ feedback information and many antennas changed in time.

6. method that multiplexing descending HARQ feedback and CSI are carried out demultiplexing may further comprise the steps:

Receive with the corresponding different PUCCH resource of many transmit antennas on CSI and many groups of descending HARQ feedback informations through shining upon, every group of descending HARQ feedback information is associated with one of many antennas; And

To separate through many groups of descending HARQ feedback informations of mapping and be mapped as original descending HARQ feedback information.

7. method according to claim 6, wherein, the CSI on the corresponding different PUCCH resource of said reception and many transmit antennas and comprise through the step of many groups of descending HARQ feedback informations of mapping:

Receive with the corresponding different PUCCH resource of many transmit antennas on CSI with organize modulated predetermined reference signal more; And

Modulated predetermined reference signal on the different PUCCH resources carries out demodulation, to obtain respectively organizing descending HARQ feedback information accordingly through mapping.

8. method according to claim 6, wherein, the CSI on the corresponding different PUCCH resource of said reception and many transmit antennas and comprise through the step of many groups of descending HARQ feedback informations of mapping:

Receive with the corresponding different PUCCH resource of many transmit antennas on many groups combined coding information; And

Every group of combined coding information is carried out combined decoding, to obtain CSI and respectively to organize descending HARQ feedback information through mapping.

9. according to each described method in the claim 6 to 8, wherein, the mapping mode that original descending HARQ feedback information is organized descending HARQ feedback information at the most is following arbitrary mode:

10. method according to claim 9; Wherein, When the descending HARQ feedback information after original descending HARQ feedback information or the expansion was divided into the descending HARQ feedback information of many groups, the incidence relation of organizing descending HARQ feedback information and many antennas changed in time.

11. a subscriber equipment comprises:

Map unit is used for original descending HARQ feedback information is mapped as the descending HARQ feedback information of many groups, and every group of descending HARQ feedback information is associated with one of many antennas; And

Transmitting element is used to utilize PUCCH resources different on the respective antenna, sends CSI and respectively organizes descending HARQ feedback information through mapping.

12. subscriber equipment according to claim 11, wherein, said transmitting element comprises:

Modulating unit, be used for through mapping respectively organize the predetermined reference signal that descending HARQ feedback information is modulated to different PUCCH resources on the respective antenna respectively, and

Said transmitting element also is suitable for utilizing PUCCH resources different on the respective antenna, and transmission CSI and each are organized modulated predetermined reference signal.

13. subscriber equipment according to claim 11, wherein, said transmitting element comprises:

The combined coding unit is used for CSI is carried out combined coding respectively with the descending HARQ feedback information of respectively organizing through mapping, forming many group combined coding information, and

Said transmitting element also is suitable for utilizing PUCCH resources different on the respective antenna, sends the combined coding information of respectively organizing.

14. according to each described subscriber equipment in the claim 11 to 13, wherein, the mapping mode that original descending HARQ feedback information is organized descending HARQ feedback information at the most is following arbitrary mode:

15. subscriber equipment according to claim 14; Wherein, When the descending HARQ feedback information after original descending HARQ feedback information or the expansion was divided into the descending HARQ feedback information of many groups, the incidence relation of organizing descending HARQ feedback information and many antennas changed in time.

16. a base station comprises:

Receiving element, be used to receive with the corresponding different PUCCH resource of many transmit antennas on CSI and through many groups of descending HARQ feedback informations of mapping, every group of descending HARQ feedback information is associated with one of many antennas; And

Separate map unit, be used for being mapped as original descending HARQ feedback information separating through many groups of descending HARQ feedback informations of mapping.

17. base station according to claim 16, wherein,

Said receiving element also be suitable for receiving with the corresponding different PUCCH resource of many transmit antennas on CSI and the modulated predetermined reference signal of many groups; And said receiving element comprises:

Demodulating unit is used for the modulated predetermined reference signal on the different PUCCH resources is carried out demodulation, to obtain respectively organizing descending HARQ feedback information accordingly through mapping.

18. base station according to claim 16, wherein,

Said receiving element also be suitable for receiving with the corresponding different PUCCH resource of many transmit antennas on many groups combined coding information; And said receiving element comprises:

The combined decoding unit is used for every group of combined coding information is carried out combined decoding, to obtain CSI and respectively to organize descending HARQ feedback information through mapping.

19. according to each described base station in the claim 16 to 18, wherein, the mapping mode that original descending HARQ feedback information is organized descending HARQ feedback information at the most is following arbitrary mode:

20. base station according to claim 19; Wherein, When the descending HARQ feedback information after original descending HARQ feedback information or the expansion was divided into the descending HARQ feedback information of many groups, the incidence relation of organizing descending HARQ feedback information and many antennas changed in time.