CN102377509B

CN102377509B - Control information transmitting method, control information receiving method and control information receiving equipment

Info

Publication number: CN102377509B
Application number: CN201010257406.XA
Authority: CN
Inventors: 成艳; 吕永霞; 陈小锋
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2010-08-09
Filing date: 2010-08-09
Publication date: 2014-11-05
Anticipated expiration: 2030-08-09
Also published as: CN102377509A

Abstract

The embodiment of the invention provides a control information transmitting method, a control information receiving method and control information receiving equipment. The control information transmitting method comprises the following steps of: coding control information and then mapping the coded control information to a physical uplink control channel; and transmitting information mapped to the physical uplink channel to a base station, wherein a coding bit sequence corresponding to the information transmitted to the base station comprises coding bits corresponding to other lines except a first line and a second line in a coding matrix of (20, A) codes, or comprises coding bits corresponding to other lines except a third line and a fourth line in the coding matrix of the (20, A) codes and A is a bit number of the control information. According to the embodiment of the invention, the performance of the control information transmitted on an interceptive physical uplink control channel is improved.

Description

Control information sending method, control information method of reseptance and equipment

Technical field

The present invention relates to communication technical field, particularly a kind of control information sending method, control information method of reseptance and equipment.

Background technology

At third generation partner program (3rd Generation Partnership Project; 3GPP LTE) in Rel-8 system, in order to support dynamic dispatching, descending multiple-input and multiple-output (Multiple Input MultipleOutput; MIMO) transmission and the technology such as mixed automatic retransfer, terminal need be passed through Physical Uplink Control Channel (Physical Uplink Control Channel; PUCCH) (be ascending control information (Uplink Control Information to base station feedback various control information; UCI)), for example: channel quality instruction (ChannelQuality Indicator; CQI), pre-coding matrix instruction (Precoding Matrix Indicator; PMI), order instruction (Rank Indication; RI), for confirmation and the dispatch request etc. of mixed automatic retransfer.

Senior Long Term Evolution (Long Term Evolution-Advanced; Be called for short: LTE-A) be 3GPP Long Term Evolution (LTE Long Term Evolution; LTE) the further evolution of system and enhancing system.In LTE-A system, for meet International Telecommunication Union for the 4th generation the communication technology peak data rate require to have introduced carrier aggregation (Carrier Aggregation; CA) technology.In the time that subscriber equipment accesses multiple member carrier downlink data receiving simultaneously, need to be at uplink feedback channel state information (channel state information to each downlink member carrier; The control information such as CSI), comprises CQI, PMI, RI or other information relevant to channel status, and PUCCH form 2 (Format2) can be used for transmitting these channel condition informations.The feedback of the channel condition information of multiple descending carriers adopts time-multiplexed method to report conventionally, and a common subframe only reports the channel condition information of a descending carrier.Thereby the introducing of carrier aggregation technology can make the frequency that reports of channel condition information increase.

In LTE system, obtain uplink signal-channel quality or carry out the operations such as timing estimation for the ease of base station, subscriber equipment needs periodically on last single-carrier frequency division multiple access (SingleCarrier-Frequency Division Multiple Access, SC-FDMA) symbol of the PUCCH of a subframe, to send to base station detection reference signal (Sounding Reference Signal; SRS), and the channel condition information that adopts PUCCH Format2 to send is also the transmission in cycle, thereby the scene that exists channel condition information and SRS to send a subframe.In LTE Rel-8 system, when channel condition information and SRS need be in the time that same subframe send, subscriber equipment will abandon SRS and transmitting channel state information only.But in LTE-A system, due to the introducing of carrier aggregation technology, the frequency that reports of channel condition information is increased greatly, thereby the frequency that channel condition information and detection reference signal need send in same subframe also increases greatly, if now as LTERel-8 always abandons SRS, can make base station always can not obtain up channel state information, and then cannot carry out suitable scheduling, thereby greatly affect systematic function.Thereby, in LTE-A system, need to support channel quality information and SRS transmission simultaneously in a subframe.

Prior art terminal, when to control informations such as base station transmitting channel state informations, is blocked last SC-FDMA symbol of PUCCHFormat2 conventionally, and last SC-FDMA symbol does not send control information, but sends SRS signal.How to realize the transmission performance of the control information of guarantee system.

Summary of the invention

The embodiment of the present invention provides a kind of control information sending method, control information method of reseptance and equipment, in order to improve the performance of system.

On the one hand, the embodiment of the present invention provides control information sending method, comprising:

To after control information coding, be mapped on Physical Uplink Control Channel;

The information being mapped on described Physical Uplink Control Channel is sent to base station, described sequences of code bits corresponding to information that sends to base station comprises in the encoder matrix of (20, A) code coded-bit corresponding to other row except the first row and the second row; Or, comprise in the encoder matrix of described (20, A) code coded-bit corresponding to other row except the third line and fourth line; A is the bit number of described control information.

On the other hand, the embodiment of the present invention also provides a kind of control information method of reseptance, comprising:

The control information that receiving terminal sends;

To candidate's control information corresponding to described control information coding, obtain the 5th sequences of code bits, described the 5th sequences of code bits comprises in the encoder matrix of (20, A) code coded-bit corresponding to other row except the first row and the second row; Or, comprising in the encoder matrix of described (20, A) code coded-bit corresponding to other row except the third line and fourth line, A is the bit number of described candidate's control information;

Control information decoding according to described the 5th sequences of code bits to reception.

On the other hand, the embodiment of the present invention also provides a kind of terminal, comprising:

Coding mapping block, for being mapped to Physical Uplink Control Channel after control information coding;

Sending module, for the information being mapped on described Physical Uplink Control Channel is sent to base station, described sequences of code bits corresponding to information that sends to base station comprises in the encoder matrix of (20, A) code coded-bit corresponding to other row except the first row and the second row; Or, comprise in the encoder matrix of described (20, A) code coded-bit corresponding to other row except the third line and fourth line; A is the bit number of described control information.

The embodiment of the present invention also provides a kind of base station, comprising:

Receiver module, the control information sending for receiving terminal;

Coding module, for the candidate control information coding corresponding to described control information, obtain the 5th sequences of code bits, described the 5th sequences of code bits comprise (20, A) code encoder matrix in except the first row and the second row coded-bit corresponding to other row; Or, comprising in the encoder matrix of described (20, A) code coded-bit corresponding to other row except the third line and fourth line, A is the bit number of described candidate's control information;

Decoding module, for the control information decoding to reception according to described the 5th sequences of code bits.

Control information sending method, control information method of reseptance and equipment that the embodiment of the present invention provides, terminal is encoded to control information and is mapped to after Physical Uplink Control Channel, be sent in the information of base station and do not comprise (20, A) the first row and coding corresponding to the second row in the encoder matrix of code, or do not comprise (20, A) code encoder matrix in the third line and coding corresponding to fourth line; The information of the bit in the control information of carrying in two coded-bits that remove is less, thereby reduce the Physical Uplink Control Channel blocking and blocked the performance loss of the control information that last SC-FDMA symbol brings, the transmission performance that has improved control information realizes terminal and in the end periodically sends SRS signal to base station when a SC-FDMA symbol, has improved the performance of system.

Brief description of the drawings

Fig. 1 is the flow chart of control information sending method the first embodiment provided by the invention;

Fig. 2 is the flow chart of control information sending method the second embodiment provided by the invention;

Fig. 3 is the flow chart of control information sending method the 3rd embodiment provided by the invention;

Fig. 4 is the flow chart of control information method of reseptance the first embodiment provided by the invention;

Fig. 5 a is control information sending method the 4th embodiment flow chart provided by the invention;

Fig. 5 b is the another kind of way of example flow chart of control information sending method the 4th embodiment provided by the invention;

Fig. 5 c is another way of example flow chart of control information sending method the 4th embodiment provided by the invention;

Fig. 6 a is control information sending method the 5th embodiment flow chart provided by the invention;

Fig. 6 b is the another kind of way of example flow chart of control information sending method the 5th embodiment provided by the invention;

Fig. 7 is the resource network trrellis diagram of each time slot under existing normal cyclic prefix (Normal CP);

Fig. 8 a is for the invention provides control information method of reseptance the second embodiment flow chart;

Fig. 8 b is the another kind side of enforcement flow chart of control information method of reseptance the second embodiment provided by the invention;

Fig. 8 c is another side's of enforcement flow chart of control information method of reseptance the second embodiment provided by the invention;

Fig. 9 is terminal the first example structure schematic diagram provided by the invention;

Figure 10 is terminal the second example structure schematic diagram provided by the invention;

Figure 11 terminal provided by the invention the 3rd example structure schematic diagram;

Figure 12 is terminal provided by the invention the 4th example structure schematic diagram;

Figure 13 is base station provided by the invention the first example structure schematic diagram;

Figure 14 is base station provided by the invention the second example structure schematic diagram;

Figure 15 is control information receive-transmit system the first example structure schematic diagram provided by the invention.

Embodiment

Below by drawings and Examples, technical scheme of the present invention is described in further detail.

Fig. 1 is the flow chart of control information sending method the first embodiment provided by the invention, and referring to Fig. 1, the method comprises:

S101, will control information be mapped on Physical Uplink Control Channel after coding;

S102, the information being mapped on Physical Uplink Control Channel is sent to base station, the information bit sequence that is sent to base station comprises in the encoder matrix of (20, A) code coded-bit corresponding to other row except the first row and the second row; Or, comprise (20, A) code encoder matrix in except the third line and fourth line coded-bit corresponding to other row; A is the bit number of control information.

(20, A) code in the embodiment of the present invention is block code (block code), for example: can be Randt's Miller (Reed-Muller) code, can be also the reed-muller codes blocking, or other forms of block code.The encoder matrix that is somebody's turn to do (20, A) code can have various ways, and the present invention describes with the encoder matrix shown in table one:

i	M _i，0	M _i，1	M _i，2	M _i，3	M _i，4	M _i，5	M _i，6	M _i，7	M _i，8	M _i，9	M _i，10	M _i，11	M _i，12
														0	1	1	0	0	0	0	0	0	0	0	1	1	0
1	1	1	1	0	0	0	0	0	0	1	1	1	0
														2	1	0	0	1	0	0	1	0	1	1	1	1	1
3	1	0	1	1	0	0	0	0	1	0	1	1	1
														4	1	1	1	1	0	0	0	1	0	0	1	1	1
5	1	1	0	0	1	0	1	1	1	0	1	1	1
														6	1	0	1	0	1	0	1	0	1	1	1	1	1
7	1	0	0	1	1	0	0	1	1	0	1	1	1
														8	1	1	0	1	1	0	0	1	0	1	1	1	1
9	1	0	1	1	1	0	1	0	0	1	1	1	1
														10	1	0	1	0	0	1	1	1	0	1	1	1	1
11	1	1	1	0	0	1	1	0	1	0	1	1	1
														12	1	0	0	1	0	1	0	1	1	1	1	1	1
13	1	1	0	1	0	1	0	1	0	1	1	1	1
														14	1	0	0	0	1	1	0	1	0	0	1	0	1
15	1	1	0	0	1	1	1	1	0	1	1	0	1
														16	1	1	1	0	1	1	1	0	0	1	0	1	1
17	1	0	0	1	1	1	0	0	1	0	0	1	1
														18	1	1	0	1	1	1	1	1	0	0	0	0	0
19	1	0	0	0	0	1	1	0	0	0	0	0	0

Table one

Wherein, A represents the bit number of control information, and span can be 1 to 13; The bit number of the sequences of code bits obtaining after 20 expression control informations are encoded.(20, A) the capable row that refers to i=j-1 in encoder matrix of j of the encoder matrix of code, for example: (20 in the present invention, A) the first row in the encoder matrix of code can refer to the row of i=0 in table one, the second row in the encoder matrix of (20, A) code can refer to the row of i=1 in table 1, the like, capable that row that refers to i=j-1 in table 1 of j in the encoder matrix of (20, A) code.

Coded-bit also can be described as code word bits (code word), and sequences of code bits also can be described as code word bits sequence, the bit sequence obtaining after encoding ratio refers in particular to control information bit sequence is encoded.

Refer in particular to the capable corresponding encoding ratio of j in the encoder matrix of (20, A) code: by the capable coded-bit obtaining after control information bit sequence is encoded of the j in the encoder matrix of (20, A) code.

Control information can be terminal by PUCCH the various UCI to base station feedback, for example: CQI, PMI, RI and ACK/NACK etc.Control information waiting for transmission can be one or more bits, and conventionally, the span of the bit number A of control information can be 1 to 13.The bit sequence of these bit composition control information.After the bit sequence of control information is encoded, what obtain is the sequences of code bits being made up of multiple bits.

Send to the sequences of code bits corresponding to information of base station to refer to the information that sequences of code bits is obtained after a series of processing, as can be by sequences of code bits through scrambling, modulate and take advantage of the SC-FDMA symbol that is mapped to Physical Uplink Control Channel after orthogonal intersection, will in gained information, send to base station.

Concrete, if the information bit sequence of control information to be sent is a ₀, a ₁, a ₂..., a _(A-1)if, to the bit sequence of control information according to formula:

b_{i} = Σ_{n = 0}^{A - 1} (a_{n} \cdot M_{i, n}) \mod 2, i = 0,1,2, . . ., B - 1 - - - (1)

Wherein, M _{i, n}(i=0,1,2 ..., B-1, n=0,1,2 ..., A-1) and be that in the encoder matrix of (20, A) shown in table one code, capable, the n+1 of i+1 is listed as corresponding element, B=20; Encode according to the encoder matrix of (20, the A) code shown in formula (1) table one, the coded-bit in the sequences of code bits obtaining is:

B _i=(a ₀m _{i, 0}+ a ₁m _{i, 1}+ ... + a _nm _{i, n}+ ... + a _a-1m _{i, A-1}) mod 2; b _ithe capable corresponding coded-bit of i+1, the i.e. capable coded-bit obtaining after control information bit sequence is encoded of i+1 in the encoder matrix of (20, A) code in the encoder matrix of representative and (20, A) code.Wherein, the first row of the encoder matrix of row corresponding (20, the A) code of i=0, second row of corresponding (20, A) encoder matrix of row of i=1 ..., the like, the 20th row of the encoder matrix of row corresponding (20, the A) code of i=19.

The sequences of code bits obtaining after control information is encoded is under some scenes, terminal can be carried out scrambling to the 20 bits of encoded bit sequences that obtain after coding, then can modulate successively by certain constellation point mapping mode, modulation obtains modulation symbol (also can be described as complex values modulation symbol complex-valuedmodulation symbols) later, and concrete constellation point mapping mode can be for carrying out quarternary phase-shift keying (QPSK) (Quaternary Phase Shift Keying; Or the mode such as 16QAM QPSK), following examples all describe with QPSK modulation, but not as limit.

The QPSK modulation symbol obtaining after modulation, can carry out respectively frequency domain takes advantage of orthogonal intersection to carry out after band spectrum modulation, two time slots (slot) that are mapped to Physical Uplink Control Channel PUCCH are upper, and the later sign map to of spread spectrum that each QPSK modulation symbol is corresponding is not carried on the SC-FDMA symbol of pilot signal.It should be noted that, in LTE system, because up need keeps single-carrier property, therefore each time-domain symbol of physical uplink channel is called to SC-FDMA symbol.For example, during for normal cyclic prefix (Normal CP), Physical Uplink Control Channel comprises 14 SC-FDMA symbols, 7 of each time slots.

And the sequences of code bits obtaining after control information is encoded is after scrambling and QPSK modulation, rise abruptly from first encoding ratio of sequences of code bits, the corresponding QPSK modulation symbol of every two coded-bits.From b _iformula can find out: work as M _{i, n}be 0 o'clock, b _iin do not carry a in control information bit sequence _nthe information of bit, supposes b _iand b _i+1a corresponding QPSK modulation symbol after QPSK modulation, if M _{i+1, n}also be 0, b _i+1in do not carry a in control information bit sequence yet _nthe information of bit, so b _iand b _i+1in corresponding QPSK modulation symbol, do not carry a in control information bit sequence _nthe information of bit.

Can find out in every column element of table one continuous " 0 " element (for example M _{i, n}and M _{i+1, n}be " 0 "), can cause the QPSK modulation symbol that in the first sequences of code bits, some coded-bit obtains after QPSK modulation not carry corresponding bit information (for example a in control information bit sequence _n).For example: the 6th row (M in table one _{i, 5}), the element of front 10 row is " 0 ", and 5 QPSK modulation symbols that the coded-bit that front 10 row are corresponding obtains after QPSK modulation all do not carry a in control information bit sequence ₅the information of bit, the sign map obtaining after these 5 QPSK modulation symbol band spectrum modulation, after PUCCH, is not carried a in the 1st time slot of PUCCH ₅thereby, cause the 6th bit information a in control information ₅can not obtain the diversity gain in time enough and frequency, the 6th impact that bit information is subject to is the most serious, and while causing control information bit number to be more than or equal to 6 bit, the transmission performance of control information declines.

Due in table one, since the 1st row, the coded-bit that every two row are corresponding obtains a QPSK modulation symbol after QPSK modulation, can draw thus, in every two row, in the QPSK modulation symbol that the row that element is " 0 " can cause coded-bit that this two row is corresponding to obtain, do not carry this and be listed as the information of corresponding control information bit after QPSK modulation.Therefore, from the first row of table one, in every two row, the row that element is " 0 " are more, and the bit information in the control information of carrying in the QPSK modulation symbol that the coded-bit that this two row is corresponding obtains after QPSK modulation is fewer.

The row that are " 0 " due to element in the first row in table one and the second row are maximum, so, the control information that the QPSK modulation symbol that in the first row and the second row, corresponding coded-bit obtains after QPSK modulation carries is minimum, i.e. this QPSK symbol control information that corresponding symbol carries after band spectrum modulation is also minimum; In addition, due to the 6th bit a in control information ₅the impact being subject to is the most serious, therefore, in order to guarantee to send control information and SRS in same subframe, in the information that terminal sends to base station, can not comprise (20, A) the first row and coded-bit corresponding to the second row in the encoder matrix of code, or do not comprise the coded-bit that the third line and fourth line are corresponding, maximum with the control information of carrying in the information that ensures to send to base station, and then farthest ensured the transmission performance of control information.And send two coded-bits due to few, sent less a QPSK modulation symbol (corresponding last SC-FDMA symbol), therefore, can send SRS by last SC-FDMA symbol, improve the performance of system.

In addition, it should be noted that, PUCCH has multiple transformat, comprises form 2, form 2a or form 2b, and form 1, form 1a or 1b etc.Wherein, in LTE system, mainly transmit the control informations such as CQI, PMI and RI with form 2 (PUCCHFormat2).

The control information sending method that the present embodiment provides, control information is encoded and is mapped to after Physical Uplink Control Channel, be sent in the information bit sequence of base station and do not comprise (20, A) the first row and coding corresponding to the second row in the encoder matrix of code, or do not comprise (20, A) code encoder matrix in the third line and coding corresponding to fourth line; The information of the bit in the control information of carrying in two coded-bits that remove is less, thereby reduce the Physical Uplink Control Channel blocking and blocked the performance loss of the control information that last SC-FDMA symbol brings, the transmission performance that has improved control information realizes terminal and in the end periodically sends SRS signal to base station when a SC-FDMA symbol, has improved the performance of system.

Fig. 2 is the flow chart of control information sending method the second embodiment provided by the invention, and referring to Fig. 2, the method comprises:

S201, to control information coding, obtain the first sequences of code bits, described the first sequences of code bits comprises in the encoder matrix of (20, A) code coded-bit corresponding to other row except the first row and the second row; Or, comprise (20, A) code encoder matrix in except the third line and fourth line coded-bit corresponding to other row, the bit number that A is control information;

Wherein, control information can be terminal by PUCCH the various UCI to base station feedback, for example: CQI, PMI, RI and ACK/NACK etc.Control information waiting for transmission can be one or more bits, and conventionally, the span of the bit number A of control information can be 1 to 13.The bit sequence of these bit composition control information.After the bit sequence of control information is encoded, what obtain is the sequences of code bits being made up of multiple bits.

If the bit sequence of control information is encoded according to the encoder matrix of (20, the A) code shown in formula (1) and table one, the coded-bit in the sequences of code bits obtaining is:

B _i=(a ₀m _{i, 0}+ a ₁m _{i, 1}+ L+a _nm _{i, n}+ L+a _a-1m _{i, A-1}) mod 2; b _ithe capable corresponding coded-bit of i+1, the i.e. capable coded-bit obtaining after control information bit sequence is encoded of i+1 in the encoder matrix of (20, A) code in the encoder matrix of representative and (20, A) code.Wherein, the first row of the encoder matrix of row corresponding (20, the A) code of i=0, second row of corresponding (20, A) encoder matrix of row of i=1 ..., the like, the 20th row of the encoder matrix of row corresponding (20, the A) code of i=19.

The sequences of code bits obtaining after control information is encoded is under some scenes, conventionally to after the operation of scrambling, modulation and spread spectrum, be mapped on PUCCH, and this sequences of code bits is after scrambling and QPSK modulation, rise abruptly from first encoding ratio of this sequences of code bits, the corresponding QPSK modulation symbol of every two coded-bits.From b _iformula can find out: work as M _{i, n}be 0 o'clock, b _iin do not carry a in control information bit sequence _nthe information of bit, supposes b _iand b _i+1a corresponding QPSK modulation symbol after QPSK modulation, if M _{i+1, n}also be 0, b _i+1in do not carry a in control information bit sequence yet _nthe information of bit, so b _iand b _i+1in corresponding QPSK modulation symbol, do not carry a in control information bit sequence _nthe information of bit.Can find out in every column element of table one continuous " 0 " element (for example M _{i, n}and M _{i+1, n}be " 0 "), can cause the QPSK modulation symbol that in this sequences of code bits, some coded-bit obtains after QPSK modulation not carry corresponding bit information (for example a in control information bit sequence _n).For example: the 6th row (M in table one _{i, 5}), the element of front 10 row is " 0 ", and 5 QPSK modulation symbols that the coded-bit that front 10 row are corresponding obtains after QPSK modulation all do not carry a in control information bit sequence ₅the information of bit, the sign map obtaining after these 5 QPSK modulation symbol band spectrum modulation, after PUCCH, is not carried a in the 1st time slot of PUCCH ₅thereby, cause the 6th bit information a in control information ₅can not obtain the diversity gain in time enough and frequency, the 6th impact that bit information is subject to is the most serious, and while causing control information bit number to be more than or equal to 6 bit, the transmission performance of control information declines.

And send control information and SRS in same subframe in order to guarantee, terminal need be removed last SC-FDMA symbol of Physical Uplink Control Channel in the time sending control information, so that terminal sends SRS on this SC-FDMA symbol.The Physical Uplink Control Channel that removes last SC-FDMA symbol can be described as the Physical Uplink Control Channel or the short Physical Uplink Control Channel (Shortened PUCCHFormat) that block.In the time that terminal sends control information with the Physical Uplink Control Channel form two (Shortened PUCCHFormat2) blocking, on this Physical Uplink Control Channel blocking, only there is the control information of 9 SC-FDMA symbols carry, the corresponding QPSK modulation symbol of each SC-FDMA symbol, corresponding 2 coded-bits of each QPSK modulation symbol, this control channel blocking can only carry 18 coded-bits, be mapped to the sequences of code bits of transmitting on this Physical Uplink Control Channel blocking and only comprise 18 coded-bits, according to (20, A) in the sequences of code bits that the encoder matrix of code obtains, should remove two coded-bits.In table, in the first row and the second row, to be the row of " 0 " maximum for element, so, the control information that the QPSK modulation symbol that in the first row and the second row, corresponding coded-bit obtains after QPSK modulation carries is minimum, i.e. this QPSK symbol control information that corresponding symbol carries after band spectrum modulation is also minimum; In addition, due to the 6th bit a in control information ₅the impact being subject to is the most serious, and therefore, the coded-bit corresponding to two row that the 6th row in table one can be to " 0 " removes.Thus, can be (20, A) in the sequences of code bits that the encoder matrix of code obtains, remove the coded-bit of the first row and the second correspondence, or remove coded-bit corresponding to the third line and fourth line, the control information of carrying in the first sequences of code bits obtaining with guarantee is maximum, and then has farthest ensured the transmission performance of control information.

S202, the first sequences of code bits is mapped to and on Physical Uplink Control Channel, sends to base station.

After control information is encoded, the first sequences of code bits of output is 18 bits, this 18 bits of encoded bit sequence can pass through scrambling, modulation, after the operation such as spread spectrum, be mapped on PUCCH, because the first sequences of code bits of 18 bits obtains 9 QPSK modulation symbols after QPSK modulation, symbol corresponding after these 9 QPSK modulation symbol band spectrum modulation (also can be described as complex values symbol, complex-valued symbols) be mapped on front 9 the SC-FDMA symbols on PUCCH, terminal in the end can send detection reference signal SRS when a SC-FDMA symbol.

It should be noted that, front 9 the SC-FDMA symbols on the PUCCH in step S202 refer to front 9 SC-FDMA symbols that do not taken by common pilot signal (CRS).In step S202 by sign map corresponding after 9 QPSK modulation symbol band spectrum modulation to front 9 SC-FDMA symbols of Physical Uplink Control Channel, this mapping process can be specially: symbol corresponding after a QPSK modulation symbol band spectrum modulation is only mapped on a SC-FDMA symbol, obtained through band spectrum modulation by a QPSK modulation symbol owing to being mapped to a symbol on SC-FDMA symbol, therefore a QPSK modulation symbol is mapped on a SC-FDMA symbol, or a SC-FDMA symbol only carries a QPSK modulation symbol.This step can also comprise symbol corresponding after 9 QPSK modulation symbol band spectrum modulation is mapped on front 9 SC-FDMA symbols of Physical Uplink Control Channel successively, from first SC-FDMA sign-on mapping.

The control information sending method that the present embodiment provides, after terminal is encoded to control information, two coded-bits are removed, obtain the sequences of code bits of 18 bits, the sequences of code bits of this 18 bit is mapped on the Physical Uplink Control Channel blocking and is transmitted, two coded-bits of this being removed do not carry the 6th bit information, and the information of other control information bits that carry is also less, thereby reduce the Physical Uplink Control Channel blocking and blocked the performance loss of the control information that last SC-FDMA symbol brings, prior art has improved the transmission performance of control information relatively, terminal in the end periodically sends SRS signal when a SC-FDMA symbol to base station, improved the performance of system.

Fig. 3 is the flow chart of control information sending method the 3rd embodiment provided by the invention, and referring to Fig. 3, the method comprises:

S301, to control information coding, obtain the 4th sequences of code bits;

S302, the 4th sequences of code bits is mapped on Physical Uplink Control Channel, modulation symbol correspondence (20 after mapping on last SC-FDMA symbol of Physical Uplink Control Channel, A) the first row and coded-bit corresponding to the second row in the encoder matrix of code, or corresponding (20, A) the third line and coded-bit corresponding to fourth line in the encoder matrix of code, the bit number that A is control information;

Conventionally, the span of the bit number A of control information can be 1 to 13.The encoder matrix of (20, the A) code in this step can be as shown in Table 1.

What need to further illustrate is, modulation symbol correspondence (20 in this step, A) in the encoder matrix of code, the first row and encoding ratio corresponding to the second row refer in particular to: this modulation symbol is obtained through QPSK modulation by the coded-bit that in the encoder matrix of (20, A) code, the first row and the second row are corresponding; In like manner, modulation symbol correspondence (20 in this step, A) in the encoder matrix of code, the third line and encoding ratio corresponding to fourth line refer in particular to: this modulation symbol is obtained through QPSK modulation by coded-bit corresponding to the third line and fourth line in the encoder matrix of (20, A) code.

It is actual on last SC-FDMA symbol in this step that what carry is the symbol that this modulation symbol obtains after band spectrum modulation, because these symbols obtain through band spectrum modulation by this modulation symbol, thereby what also can claim to carry on last SC-FDMA symbol is this modulation symbol.

Modulation symbol correspondence (20 in this step on last SC-FDMA symbol, A) the first row and coded-bit corresponding to the second row in the encoder matrix of code, what be equivalent to that last SC-FDMA symbol carries is the first row and coded-bit corresponding to the second row in the encoder matrix of (20, A) code; In like manner, modulation symbol correspondence (20 on last SC-FDMA symbol, A) the third line and coded-bit corresponding to fourth line in the encoder matrix of code, what be equivalent to that last SC-FDMA symbol carries is the third line and coded-bit corresponding to fourth line in the encoder matrix of (20, A) code.

S303, remove after last SC-FDMA symbol, the information being mapped on Physical Uplink Control Channel is sent to base station.

The method difference that the control information sending method that this embodiment provides and last embodiment provide is: in the method that last embodiment provides, the first sequences of code bits to output after control information coding is the sequences of code bits of 18 bits, this sequences of code bits obtains 9 QPSK modulation symbols after QPSK modulation, symbol corresponding after these 9 QPSK modulation symbol band spectrum modulation is mapped on front 9 the SC-FDMA symbols on PUCCH successively, last SC-FDMA symbol does not send control information, utilize last SC-FDMA symbol period and send SRS signal to base station.

In the method that the present embodiment provides, terminal is the sequences of code bits of 20 bits to control information the 4th sequences of code bits obtaining of encoding, and in Table 1, in the first row and the second row, to be the row of " 0 " maximum for element, the control information of carrying in the QPSK modulation symbol that the coded-bit that so, the first row and the second row are corresponding obtains after QPSK modulation is minimum, can be by the 4th sequences of code bits of 20 bits, the modulation symbol that the coded-bit corresponding with the first row of encoder matrix shown in table one and the second row is corresponding is mapped on last SC-FDMA symbol of PUCCH, then remove last SC-FDMA symbol (or being called last SC-FDMA symbol punch (Punture)), in the time sending control information to base station, do not send last SC-FDMA symbol (adopting the Physical Uplink Control Channel form blocking to send control information), thereby a terminal in the end SC-FDMA symbol period ground sends SRS to base station.

Or, if consider the 6th bit a in control information ₅the impact being subject to is the most serious, the third line in table one and modulation symbol corresponding to coded-bit corresponding to fourth line can also be mapped to last SC-FDMA symbol of PUCCH, again by last SC-FDMA symbol is punched, to ensure in the time sending control information to base station, do not send last SC-FDMA symbol, thereby the control information that the modulation symbol in last the SC-FDMA symbol that ensures not send carries is less.

The control information sending method that the present embodiment provides, the coded-bit that is finally mapped to last SC-FDMA symbol of PUCCH does not carry the 6th bit information, and the information of other control information bits that carry is also less, thereby reduced the Physical Uplink Control Channel blocking and block the performance loss of the control information that last SC-FDMA symbol brings, prior art has improved the transmission performance of control information relatively.And terminal in the end periodically sends SRS signal when a SC-FDMA symbol to base station, improve the performance of system.

Fig. 4 is the flow chart of control information method of reseptance the first embodiment provided by the invention, and referring to Fig. 4, the method comprises:

The control information that S401, receiving terminal send;

S402, to candidate's control information corresponding to control information coding, obtain the 5th sequences of code bits, the 5th sequences of code bits comprises in the encoder matrix of (20, A) code coded-bit corresponding to other row except the first row and the second row; Or, comprise (20, A) code encoder matrix in except the third line and fourth line coded-bit corresponding to other row, A is the bit number of candidate's control information;

S403, according to the 5th sequences of code bits to receive control information decoding.

Base station receives after the control information of terminal transmission, first determine candidate's control information according to the bit number of control information, candidate's control information has represented several possibilities of control information bit sequence, candidate's control information can be identical with the bit number of control information, for example: the control information receiving is 4 bits, candidate's control information is also 4 bits, can be 0000,0001,0010,16 kinds of 0011......1111 etc.In addition, the bit number of the control information that the bit number of candidate's control information also can send from terminal is different, for example, when the control information sending in uncertain terminal when base station has how many bits on earth, can guess several candidates' control information bit number, determine candidate's control information corresponding to each candidate's control information bit number, candidate's control information corresponding to all candidate's control information bit numbers is candidate's control information of the control information of base station sense terminals transmission.Encoding to each candidate information respectively in base station, and generates the 5th sequences of code bits separately.Because adopting the Physical Uplink Control Channel form blocking, terminal sends control information to base station, last SC-FDMA symbol is perforated, for periodically sending SRS signal, in the information that in fact terminal sends to base station, only there are 9 SC-FDMA symbols to carry control information, the sequences of code bits of corresponding 18 bits of control information that terminal sends to base station.Therefore, base station is to candidate's control information coding, and the 5th sequences of code bits obtaining is the sequences of code bits of 18 bits.

In addition, in table one, in the first row and the second row, to be the row of " 0 " maximum for element, and so, the control information of carrying in the QPSK modulation symbol that in the first row and the second row, corresponding coded-bit obtains after QPSK modulation is minimum; Moreover, consider that in control information, the 6th impact that bit a5 is subject to is the most serious, therefore, referring to previous embodiment, in sequences of code bits corresponding to control information that terminal sends, remove and (20, A) the first row and coded-bit corresponding to the second row in the encoder matrix of code, or removed with the encoder matrix of (20, A) code in the third line and coded-bit corresponding to fourth line, maximum with the control information of carrying in the first sequences of code bits that ensures to obtain.Accordingly, base station side is also adopted in the same way in the time that candidate's control information is encoded, the 5th sequences of code bits comprise (20, A) code encoder matrix in except the first row and the second row coded-bit corresponding to other row; Or, comprise in (20, A) encoder matrix coded-bit corresponding to other row except the third line and fourth line.

Base station, based on the 5th sequences of code bits corresponding to each candidate's control information, judges which candidate's control information is the control information that terminal sends.Judgment criterion in this step has multiple, for example, taking a kind of implementation in Maximum Likelihood Detection as example: base station obtains 9 QPSK modulation symbols by length corresponding each candidate's control information bit after 18 the 5th sequences of code bits is carried out QPSK modulation, the conjugate multiplication of the corresponding QPSK modulation symbol that each QPSK modulation symbol and base station are received on PUCCH, again 9 products are added to the real part (this value can be described as likelihood value) of getting and being worth, likelihood value in this step also can calculate in conjunction with frequency pilot sign, for example can be by the conjugate multiplication of local frequency pilot sign and the frequency pilot sign receiving, and corresponding multiple frequency pilot signs product is added to value that 9 products corresponding with control information are added is again added again the real part of finally getting and be worth and can also detects in conjunction with frequency pilot sign, except 9 products are added, can also be added with the likelihood value of frequency pilot sign, likelihood value corresponding to each candidate's control information compared, and base station judges the control information bit that maximum candidate's control information corresponding to that likelihood value is user device transmissions.

The control information method of reseptance that the present embodiment provides, encode to candidate's control information respectively in base station, obtain 18 bits of encoded bit sequences, in this sequences of code bits, do not comprise (20, A) the first row and coded-bit corresponding to the second row in the encoder matrix of code, or do not comprise (20, A) code encoder matrix in the third line and coded-bit corresponding to fourth line, then according to the sequences of code bits of candidate's control information to receive control information carry out decoding.When the Physical Uplink Control Channel form blocking due to end side utilization sends control information, ensure owing to causing two coded-bits losing not carry the 6th bit information to last SC-FDMA symbol punching, and the information of other control information bits that carry is also less, thereby reduced the Physical Uplink Control Channel blocking and block the performance loss of the control information that last SC-FDMA symbol brings, prior art has improved the transmission performance of control information relatively; Simultaneously terminal in the end periodically sends SRS signal when a SC-FDMA symbol to base station, has improved the performance of system.

Fig. 5 a is control information sending method the 4th embodiment flow chart provided by the invention, and referring to Fig. 5 a, the method comprises:

The encoder matrix of S501a, basis (20, A) code is encoded to control information, obtains the second sequences of code bits: wherein, a ₀, a ₁, a ₂..., a _(A-1)for the bit sequence of control information, M _{i, n}(i=0,1,2 ..., B-1, n=0,1,2 ..., A-1) and be that in the encoder matrix of (20, A) code, capable, the n+1 of i+1 is listed as corresponding element, B=20;

Conventionally, the bit number that A is control information, the span of A can be 1 to 13.The encoder matrix of (20, the A) code in this step can be as shown in Table 1.

S502a, in the second sequences of code bits, remove and encoder matrix the first row and the coded-bit corresponding to the second row of (20, A) code, obtain the first sequences of code bits; Or, in the second sequences of code bits, remove and encoder matrix the third line and the coded-bit corresponding to fourth line of (20, A) code, obtain the first sequences of code bits;

Wherein, with (20, A) encoder matrix the first row and the coded-bit corresponding to the second row of code refer to: by the first row and second row of the encoder matrix shown in table one, by formula (1) to control information two coded-bits that obtain of encoding; Equally, refer to (20, A) encoder matrix the third line and coded-bit corresponding to fourth line: by the third line and the fourth line of the encoder matrix shown in table one, by formula (1) to control information two coded-bits that obtain of encoding.

In the second sequences of code bits, remove and (20, A) encoder matrix the first row and the coded-bit corresponding to the second row of code, or remove coded-bit corresponding to the third line and fourth line, can be by corresponding bit punching in sequences of code bits be realized.Remove after two coded-bits, obtaining length is the first sequences of code bits of 18 bits.If with b ' _jrepresent the first sequences of code bits, b ' _j=b _i, j=0,1,2 ..., 17, i=2,3 ... 19 or i=0, Isosorbide-5-Nitrae, 5 ... 19.The first sequences of code bits is to basis (20, A) encode in the 20 bits of encoded bit sequences that obtain the 1st and the 2nd coded-bit of the encoder matrix of code punches, or the 3rd and the 4th coded-bit are punched, the 18 bits of encoded bit sequences that obtain.

S503a, the first sequences of code bits is mapped to and on Physical Uplink Control Channel, is sent to base station.

The first sequences of code bits is mapped in the process of PUCCH, conventionally can carry out to the first sequences of code bits the operations such as scrambling, modulation and spread spectrum, modulation can adopt QPSK modulation system successively 18 bits of encoded bit sequences to be modulated, and obtains 9 QPSK modulation symbols.The sign map that these 9 QPSK modulation symbols are obtained after band spectrum modulation is to front 9 SC-FDMA symbols of PUCCH, subscriber equipment can in the end send detection reference signal on a SC-FDMA symbol, thereby can realize control information and detection reference signal SRS sends simultaneously, improve the transmission performance of system.

The detailed description of this step can, referring to step S202, no longer be repeated herein.

In step S502a, terminal is in the time obtaining the first sequences of code bits, remove in second sequences of code bits that step S501a obtains with (20, A) two coded-bits that the encoder matrix the first row of code and the second row are corresponding or with (20, A) encoder matrix the third line and two coded-bits corresponding to fourth line of code, two coded-bits that are removed do not carry the information of the 6th control information bit and the information of other control information bits of carrying also less, thereby reduce the Physical Uplink Control Channel blocking and blocked the performance loss of the control information that last SC-FDMA symbol brings, prior art has improved the transmission performance of control information relatively.

As another execution mode preferably, referring to Fig. 5 b, S501a and S502a can also realize by mode below:

The encoder matrix of S501b, basis (18, A) code is encoded to control information, obtains the first sequences of code bits: wherein, a ₀, a ₁, a ₂..., a _(A-1)for the bit sequence of control information, M _{i, n}(i=0,1,2 ..., B-1, n=0,1,2 ..., A-1) and be that in the encoder matrix of (18, A) code, capable, the n+1 of i+1 is listed as corresponding element, B=18, the bit number that wherein A is control information.

The encoder matrix of (18, the A) code in this step is to clip the first row and the second row in the encoder matrix of (20, A) code, or in the encoder matrix of (20, A) code, clips the encoder matrix of the third line and fourth line acquisition.

Wherein, the encoder matrix of clipping (18, A) code that the first row and the second row obtain in the encoder matrix of (20, A) code is:

i	M _i，0	M _i，1	M _i，2	M _i，3	M _i，4	M _i，5	M _i，6	M _i，7	M _i，8	M _i，9	M _i，10	M _i，11	M _i，12
														0	1	0	0	1	0	0	1	0	1	1	1	1	1
1	1	0	1	1	0	0	0	0	1	0	1	1	1
														2	1	1	1	1	0	0	0	1	0	0	1	1	1
3	1	1	0	0	1	0	1	1	1	0	1	1	1
														4	1	0	1	0	1	0	1	0	1	1	1	1	1
5	1	0	0	1	1	0	0	1	1	0	1	1	1
														6	1	1	0	1	1	0	0	1	0	1	1	1	1
7	1	0	1	1	1	0	1	0	0	1	1	1	1
														8	1	0	1	0	0	1	1	1	0	1	1	1	1
9	1	1	1	0	0	1	1	0	1	0	1	1	1
														10	1	0	0	1	0	1	0	1	1	1	1	1	1
11	1	1	0	1	0	1	0	1	0	1	1	1	1
														12	1	0	0	0	1	1	0	1	0	0	1	0	1
13	1	1	0	0	1	1	1	1	0	1	1	0	1
														14	1	1	1	0	1	1	1	0	0	1	0	1	1
15	1	0	0	1	1	1	0	0	1	0	0	1	1
														16	1	1	0	1	1	1	1	1	0	0	0	0	0
17	1	0	0	0	0	1	1	0	0	0	0	0	0

Table two

The encoder matrix that the encoder matrix of (20, A) code is clipped (18, A) code that the third line and fourth line obtain is:

i	M _i，0	M _i，1	M _i，2	M _i，3	M _i，4	M _i，5	M _i，6	M _i，7	M _i，8	M _i，9	M _i，10	M _i，11	M _i，12
														0	1	1	0	0	0	0	0	0	0	0	1	1	0
1	1	1	1	0	0	0	0	0	0	1	1	1	0
														2	1	1	1	1	0	0	0	1	0	0	1	1	1
3	1	1	0	0	1	0	1	1	1	0	1	1	1
														4	1	0	1	0	1	0	1	0	1	1	1	1	1
5	1	0	0	1	1	0	0	1	1	0	1	1	1
														6	1	1	0	1	1	0	0	1	0	1	1	1	1
7	1	0	1	1	1	0	1	0	0	1	1	1	1
														8	1	0	1	0	0	1	1	1	0	1	1	1	1
9	1	1	1	0	0	1	1	0	1	0	1	1	1
														10	1	0	0	1	0	1	0	1	1	1	1	1	1
11	1	1	0	1	0	1	0	1	0	1	1	1	1
														12	1	0	0	0	1	1	0	1	0	0	1	0	1
13	1	1	0	0	1	1	1	1	0	1	1	0	1
														14	1	1	1	0	1	1	1	0	0	1	0	1	1
15	1	0	0	1	1	1	0	0	1	0	0	1	1
														16	1	1	0	1	1	1	1	1	0	0	0	0	0
17	1	0	0	0	0	1	1	0	0	0	0	0	0

Table three

Shown in table one (20, A) encoder matrix of code, after clipping the first row (row of i=0) and the second row (row of i=1), obtain (18, A) encoder matrix of code, the first sequences of code bits that obtains 18 bits according to this encoder matrix does not comprise the first row and coded-bit corresponding to the second row in the encoder matrix of (20, A) code; Equally, after clipping the third line (row of i=2) and fourth line (row of i=3), obtain (18, A) encoder matrix of code, the first sequences of code bits that obtains 18 bits according to this encoder matrix does not comprise the third line and coded-bit corresponding to fourth line in the encoder matrix of (20, A) code.

In step S501b, terminal is in the time obtaining the first sequences of code bits, according to (18, A) encoder matrix of code is (20, A) in the encoder matrix of code, clip the first row and the second row, or (20, A) in the encoder matrix of code, clip the encoder matrix that the third line and fourth line obtain, be equivalent to remove in step S501 with (20, A) two coded-bits that the encoder matrix the first row of code and the second row are corresponding or with (20, A) encoder matrix the third line and two coded-bits corresponding to fourth line of code, two coded-bits that are removed do not carry the information of the 6th control information bit and the information of other control information bits of carrying also less, thereby reduce the Physical Uplink Control Channel blocking and blocked the performance loss of the control information that last SC-FDMA symbol brings, prior art has improved the transmission performance of control information relatively.

In addition, referring to Fig. 5 c, S501a and S502a can also realize by the following method:

The encoder matrix of S501c, basis (20, A) code is encoded to control information, obtains the 3rd sequences of code bits:

b_{i} = Σ_{n = 0}^{A - 1} (a_{n} \cdot M_{((i + 2) \mod 20), n}) \mod 2, i = 0,1,2, . . ., B - 1 - - - (2)

Wherein, M _{((i+2) mod20), n}(i=0,1,2 ..., B-1, n=0,1,2 ..., A-1) and be that in the encoder matrix of (20, A) code, ((i+2) mod20)+1 row, n+1 are listed as corresponding element, B=20;

S502c, remove latter two coded-bit of the 3rd sequences of code bits, obtain the first sequences of code bits.

Formula (2) from S501c can be found out, according to this formula and as shown in table 1 (20, A) the 3rd sequences of code bits that the encoder matrix of code obtains is 20 bits of encoded bit sequences, (20, A) in the encoder matrix of code, coded-bit corresponding to the first row is positioned at the penultimate bit of the 3rd sequences of code bits, and the coded-bit that the second row is corresponding is positioned at last bit of the 3rd sequences of code bits.Due to (20, A) the encoder matrix the first row of code and coded-bit corresponding to the second row are positioned at latter two bit of the 3rd sequences of code bits, again because the control information that the first row and coded-bit corresponding to the second row carry is minimum, therefore, latter two coded-bit can be removed, obtain the first sequences of code bits of 18 bits.

The control information sending method that the present embodiment provides, be 18 bits of encoded bit sequences to the sequences of code bits obtaining after control information coding, in this sequences of code bits, do not comprise (20, A) the first row and coded-bit corresponding to the second row in encoder matrix, this 18 bits of encoded bit sequence obtains 9 QPSK modulation symbols after QPSK modulation, the sign map that these 9 QPSK modulation symbols obtain after band spectrum modulation is to front 9 the SC-FDMA symbols of PUCCH, last SC-FDMA symbol does not send control information, utilize last SC-FDMA symbol period and send SRS signal to base station, improve the performance of system.Two coded-bits that are simultaneously removed do not carry the information of the 6th control information bit and the information of other control information bits of carrying also minimum, thereby reduced the Physical Uplink Control Channel blocking and block the performance loss of the control information that last SC-FDMA symbol brings, prior art has improved the transmission performance of control information relatively.

Fig. 6 a is control information sending method the 5th embodiment flow chart provided by the invention, and referring to Fig. 6 a, the method comprises:

The encoder matrix of S601a, basis (20, A) code is encoded to described control information, obtains the 4th sequences of code bits:

Wherein, a ₀, a ₁, a ₂..., a _(A-1)for the bit sequence of control information,

M _{i, n}(i=0,1,2 ..., B-1, n=0,1,2 ..., A-1) and be that in the encoder matrix of (20, A) code, capable, the n+1 of i+1 is listed as corresponding element, B=20;

The encoder matrix of (20, the A) code in this step can be as shown in table 1.A in this step is the bit number of control information, and its span can be 1 to 13.

S602a, by the 4th sequences of code bits with the encoder matrix of (20, A) code in modulation symbol corresponding to the corresponding coded-bit of the first row and the second row be mapped on last SC-FDMA symbol of Physical Uplink Control Channel; Or, by the 4th sequences of code bits with the encoder matrix of (20, A) code in modulation symbol corresponding to the corresponding coded-bit of the third line and fourth line be mapped on last SC-FDMA symbol of Physical Uplink Control Channel.

Some conceptual explanations of this step refer to step S302, no longer repeat herein.

Concrete, first, according to as shown in table 1 (20, A) encoder matrix of code and formula (1) obtain the 4th sequences of code bits of 20 bits, then by change original mapping mode realize by the 4th sequences of code bits with (20, A) in the encoder matrix of code, the first row and modulation symbol corresponding to the corresponding coded-bit of the second row are mapped on last SC-FDMA symbol, or by the 4th sequences of code bits with (20, A) in the encoder matrix of code, the third line and modulation symbol corresponding to the corresponding coded-bit of fourth line are mapped on last SC-FDMA symbol.

Concrete, can first carry out scrambling to the 4th sequences of code bits, then adopt successively QPSK constellation point mapping mode to be modulated into 10 QPSK modulation symbol d (0), ..., d (9), wherein, (20, A) encoder matrix the first row and the QPSK modulation symbol corresponding to coded-bit corresponding to the second row of code are d (0), encoder matrix the third line and the QPSK modulation symbol corresponding to coded-bit corresponding to fourth line of (20, A) code are d (1).Then, can pass through n=0,1 ..., 9, i=0,1 ..., modulation symbol is carried out to spread spectrum, wherein, it is the orthogonal spreading sequence of 12 bits.After spread spectrum, 10 QPSK modulation symbols are transformed into 120 symbol z (i).Wherein, z (0) L z (11) is corresponding with QPSK modulation symbol d (0), with encoder matrix the first row and the coded-bit correspondence corresponding to the second row of (20, A) code; Z (12) L z (23) is corresponding with QPSK modulation symbol d (1), with encoder matrix the third line and the coded-bit correspondence corresponding to fourth line of (20, A) code.

By in the 4th sequences of code bits with (20, A) in the encoder matrix of code, the first row and modulation symbol corresponding to the corresponding coded-bit of the second row are mapped on last SC-FDMA symbol of Physical Uplink Control Channel, be specifically as follows: modulation symbol inverted order corresponding the 4th sequences of code bits is mapped on Physical Uplink Control Channel, can be by d (0), ..., d (9) is mapped on the SC-FDMA symbol of Physical Uplink Control Channel successively, from last SC-FDMA sign-on mapping, or by d (0), ..., the modulation symbol that d (9) is corresponding is mapped on the SC-FDMA symbol of Physical Uplink Control Channel in reverse order successively, from first SC-FDMA sign-on, first d (9) is mapped on first SC-FDMA symbol, other are analogized, until d (0) is mapped on last SC-FDMA symbol, in the time certain modulation symbol being mapped on certain SC-FDMA symbol, be specially this modulation symbol corresponding symbol after band spectrum modulation is all mapped on this SC-FDMA symbol, for example, d (0) is mapped on last SC-FDMA symbol and is specially d (0) corresponding symbol z (0) L z (11) after band spectrum modulation is mapped on last SC-FDMA symbol.

Or, can also by the 4th sequences of code bits with described (20, A) in the encoder matrix of code, the first row and modulation symbol corresponding to the corresponding coded-bit of the second row are mapped on last SC-FDMA symbol, the modulation symbol that all the other coded-bits are corresponding is mapped on all the other SC-FDMA symbols of Physical Uplink Control Channel (being mapped to successively on the SC-FDMA symbol that on Physical Uplink Control Channel, all the other are not taken by public guide frequency) successively, and each modulation symbol is mapped on a SC-FDMA symbol.Be about to the encoder matrix of described (20, A) code in QPSK modulation symbol d (0) corresponding to the corresponding coded-bit of the first row and the second row be mapped on last SC-FDMA symbol (being specially: d (0) corresponding symbol z (0) L z (11) after band spectrum modulation is mapped on last SC-FDMA symbol), the modulation symbol that all the other coded-bits are corresponding is mapped on all the other SC-FDMA symbols of Physical Uplink Control Channel (being mapped to successively on the SC-FDMA symbol that on Physical Uplink Control Channel, all the other are not taken by public guide frequency) successively, and each modulation symbol is mapped on a SC-FDMA symbol, be specifically as follows: by other z (i), i ≠ 0, 1, L 11 (is first time slot and k=0 from first Physical Resource Block successively, the Resource Block of l=0) start, increase progressively according to first frequency domain k, the rule that time domain l increases progressively is again shone upon successively, and then increase progressively according to first frequency domain k at second time slot, the rule that time domain l increases progressively is again shone upon successively.

Or, the symbol z ((i+12) mod120) that modulation symbol corresponding the 4th sequences of code bits can also be obtained after frequency domain spread spectrum modulation, i=0,1,2, L 119 is mapped to the Resource Block (k not taken by public guide frequency successively, l) on, each time slot increases progressively by first frequency domain k the rule that time domain l increases progressively again and shines upon in turn, from first Resource Block (i.e. k=0 first SC-FDMA symbol of subframe the 1st time slot of first time slot, that Resource Block that l=0 is corresponding) start, then be mapped to second time slot, referring to Fig. 7.

By in the 4th sequences of code bits with (20, A) in the encoder matrix of code, the third line and modulation symbol corresponding to the corresponding coded-bit of fourth line are mapped on last SC-FDMA symbol of Physical Uplink Control Channel, can be specially: by the 4th sequences of code bits with (20, A) in the encoder matrix of code, the third line and modulation symbol corresponding to the corresponding coded-bit of fourth line are mapped on last SC-FDMA symbol, the modulation symbol that all the other coded-bits are corresponding is mapped on all the other SC-FDMA symbols of Physical Uplink Control Channel (being mapped to successively on the SC-FDMA symbol that on Physical Uplink Control Channel, all the other are not taken by public guide frequency) successively, and each modulation symbol is mapped on a SC-FDMA symbol.Be about to the encoder matrix of described (20, A) code in QPSK modulation symbol d (1) corresponding to the corresponding coded-bit of the third line and fourth line be mapped on last SC-FDMA symbol and (be specially: by d (1) corresponding symbol z (12) after band spectrum modulation ... z (23) is mapped on last SC-FDMA symbol), the modulation symbol that all the other coded-bits are corresponding is mapped on all the other SC-FDMA symbols of Physical Uplink Control Channel (being mapped to successively on the SC-FDMA symbol that on Physical Uplink Control Channel, all the other are not taken by public guide frequency) successively, and each modulation symbol is mapped on a SC-FDMA symbol, be specifically as follows: by other z (i), i ≠ 12, 13, 23 (is first time slot and k=0 from first Physical Resource Block successively, the Resource Block of l=0) start, increase progressively according to first frequency domain k, the rule that time domain l increases progressively is again shone upon successively, and then increase progressively according to first frequency domain k at second time slot, the rule that time domain l increases progressively is again shone upon successively.

It should be noted that, the embodiment of the present invention only need ensure by the 4th sequences of code bits with (20, A) in the encoder matrix of code, the first row and modulation symbol corresponding to the corresponding coded-bit of the second row are mapped on last SC-FDMA symbol of Physical Uplink Control Channel, or by the 4th sequences of code bits with (20, A) in the encoder matrix of code, the second row and modulation symbol corresponding to the corresponding coded-bit of the third line are mapped on last SC-FDMA symbol of Physical Uplink Control Channel, mode the present invention that the modulation symbol that all the other coded-bits are corresponding is mapped on Physical Uplink Control Channel does not limit, preferably shine upon to mode according to the present invention.

S603a, remove after last SC-FDMA symbol, the information being mapped on PUCCH is sent to base station.

It should be noted that, first SC-FDMA symbol in the present embodiment refers to first SC-FDMA symbol of first time slot of Physical Uplink Control Channel, first SC-FDMA symbol that SC-FDMA symbol as corresponding in l=0 in Fig. 7 is each time slot.In like manner, last SC-FDMA symbol refers to last SC-FDMA symbol of second time slot of Physical Uplink Control Channel.

The present embodiment also can be realized by the form that changes the existing Physical Uplink Control Channel blocking.For example change from removing last SC-FDMA symbol the Physical Uplink Control Channel blocking into remove Physical Uplink Control Channel first SC-FDMA symbol.In the time adopting this new Physical Uplink Control Channel form blocking to send control information, step S602 in the present embodiment be by the 4th sequences of code bits with (20, A) in the encoder matrix of code, the first row and modulation symbol corresponding to the corresponding coded-bit of the second row are mapped on first SC-FDMA symbol on Physical Uplink Control Channel, be specially: modulation symbol corresponding the 4th sequences of code bits is mapped to successively on the SC-FDMA symbol of Physical Uplink Control Channel (being mapped to successively on the SC-FDMA symbol not taken by public guide frequency on Physical Uplink Control Channel), each modulation symbol is mapped on a SC-FDMA symbol, and from first SC-FDMA sign-on mapping, being specifically as follows the symbol z (i) that modulation symbol corresponding to the 4th sequences of code bits obtained after band spectrum modulation (is first time slot and k=0 from first Physical Resource Block successively, the Resource Block of l=0) start, increase progressively according to first frequency domain k, the rule that time domain l increases progressively is again shone upon successively, and then increase progressively according to first frequency domain k at second time slot, the rule that time domain l increases progressively is again shone upon successively, thereby will be with (20, A) in the encoder matrix of code, the first row and modulation symbol corresponding to the corresponding coded-bit of the second row are mapped on first SC-FDMA symbol, in the time adopting this new Physical Uplink Control Channel form blocking to send control information, the step S603 in the present embodiment is: remove after first SC-FDMA symbol, the information being mapped on PUCCH is sent to base station.

The embodiment of the present invention has ensured to be mapped to that two coded-bits on that SC-FDMA symbol being removed do not carry the information of the 6th control information bit and the information of other control information bits of carrying is also less, thereby reduce the Physical Uplink Control Channel blocking and blocked the performance loss of the control information that last SC-FDMA symbol brings, improved the transmission performance of control information.Simultaneously terminal in the end periodically sends SRS signal when a SC-FDMA symbol to base station, has improved the performance of system.

Taking that SC-FDMA symbol of being removed as last SC-FDMA symbol is as example, last SC-FDMA symbol corresponding QPSK modulation symbol d (0) or d (1), wherein, in corresponding the 4th sequences of code bits of QPSK modulation symbol d (0) with (20, A) the first row and the coded-bit corresponding to the second row of the encoder matrix of code, the coded-bit that the third line of the encoder matrix of d (1) correspondence and (20, A) code and fourth line are corresponding.Due to (20, A) the first row of encoder matrix and the coded-bit of the second row of code, or (20, A) the third line of encoder matrix of code and the coded-bit of fourth line do not carry the information of the 6th control information bit and the information of other control information bits of carrying also less, thereby reduced the Physical Uplink Control Channel blocking and block the performance loss of the control information that last SC-FDMA symbol brings, prior art has improved the transmission performance of control information relatively.Simultaneously terminal in the end periodically sends SRS signal when a SC-FDMA symbol to base station, has improved the performance of system.

As preferably execution mode of another kind, referring to Fig. 6 b, S601a-S603a can also be:

The encoder matrix of S601b, basis (20, A) code is encoded to control information, obtains the 4th sequences of code bits:

b_{i} = Σ_{n = 0}^{A - 1} (a_{n} \cdot M_{((i + 2) \mod 20), n}) \mod 2, i = 0,1,2, . . ., B - 1 - - - (2)

Wherein, M _{((i+2) mod20), n}(i=0,1,2 ..., B-1, n=0,1,2 ..., A-1) and ((i+2) mod 20)+1 row, n+1 are listed as corresponding element, B=20 in the encoder matrix of (20, A) code;

S602b, modulation symbol corresponding the 4th sequences of code bits is mapped to successively on the SC-FDMA symbol of Physical Uplink Control Channel, each modulation symbol is mapped on a SC-FDMA symbol, and from first SC-FDMA sign-on mapping.

Be specially: modulation symbol corresponding the 4th sequences of code bits is mapped to successively on the SC-FDMA symbol of Physical Uplink Control Channel (being mapped to successively on the SC-FDMA symbol not taken by public guide frequency on Physical Uplink Control Channel), each modulation symbol is mapped on a SC-FDMA symbol, and from first SC-FDMA sign-on mapping, being specifically as follows the symbol z (i) that modulation symbol corresponding to the 4th sequences of code bits obtained after band spectrum modulation (is first time slot and k=0 from first Physical Resource Block successively, the Resource Block of l=0) start, increase progressively according to first frequency domain k, the rule that time domain l increases progressively is again shone upon successively, and then increase progressively according to first frequency domain k at second time slot, the rule that time domain l increases progressively is again shone upon successively.

Due to, according to as shown in table 1 (20, A) the 4th sequences of code bits that the encoder matrix of code and formula (2) obtain, (20, A) in the encoder matrix of code, coded-bit corresponding to the first row is positioned at the penultimate bit of the 4th sequences of code bits, and the coded-bit that the second row is corresponding is positioned at last bit of the 4th sequences of code bits.Because the first row and coded-bit corresponding to the second row in the encoder matrix of (20, A) code are positioned at latter two bit of the 4th sequences of code bits.This step is mapped to modulation symbol corresponding the 4th sequences of code bits on the SC-FDMA symbol of Physical Uplink Control Channel successively, each modulation symbol is mapped on a SC-FDMA symbol, and from first SC-FDMA sign-on mapping, the modulation symbol corresponding to latter two coded-bit of the 4th sequences of code bits is mapped on last SC-FDMA symbol, be about to be mapped on last SC-FDMA symbol with encoder matrix the first row and the coded-bit corresponding to the second row of (20, A) code.

S603b, remove after last SC-FDMA symbol, the information being mapped on PUCCH is sent to base station.

What last the SC-FDMA symbol being removed in the embodiment of the present invention carried is and (20, A) the first row and coded-bit corresponding to the second row in the encoder matrix of code, these two coded-bits do not carry the information of the 6th control information bit and the information of other control information bits of carrying also minimum, thereby reduce the Physical Uplink Control Channel blocking and blocked the performance loss of the control information that last SC-FDMA symbol brings, improved the transmission performance of control information.Simultaneously terminal in the end periodically sends SRS signal when a SC-FDMA symbol to base station, has improved the performance of system.

Fig. 8 a is for the invention provides control information method of reseptance the second embodiment flow chart, and referring to Fig. 8 a, the method comprises:

S801a, respectively according to the encoder matrix of (20, A) code to candidate's control information coding, obtain the 6th sequences of code bits:

Wherein, a ₀, a ₁, a ₂..., a _(A-1)for the bit sequence of candidate's control information, M _{i, n}(i=0,1,2 ..., B-1, n=0,1,2 ..., A-1) and be that in the encoder matrix of (20, A) code, capable, the n+1 of i+1 is listed as corresponding element, B=20;

S802a, in the 6th sequences of code bits, remove with the encoder matrix of (20, A) code in the first row and coded-bit corresponding to the second row, obtain the 5th sequences of code bits; Or, in the 6th sequences of code bits, remove with the encoder matrix of (20, A) code in the third line and coded-bit corresponding to fourth line, obtain the 5th sequences of code bits;

S803a, according to the 5th sequences of code bits to receive control information decoding.

Base station receives after the control information of terminal transmission, first determines candidate's control information according to the bit number of control information, and respectively each candidate's control information is encoded, and generates the 5th sequences of code bits corresponding to each candidate's control information.Because adopting the Physical Uplink Control Channel form blocking, terminal sends control information to base station, last SC-FDMA symbol is perforated, for periodically sending SRS signal, in the information that in fact terminal sends to base station, only there are 9 SC-FDMA symbols to carry control information, the sequences of code bits of corresponding 18 bits of control information that terminal sends to base station.In addition, due in table one, in the first row and the second row, to be the row of " 0 " maximum for element, so, the control information of carrying in the QPSK modulation symbol that in the first row and the second row, corresponding coded-bit obtains after QPSK modulation is minimum, and then the control information that the modulation symbol that obtains after band spectrum modulation of QPSK modulation symbol carries is minimum; Moreover, consider the 6th bit a in control information ₅the impact being subject to is the most serious, therefore, referring to previous embodiment, in sequences of code bits corresponding to control information that terminal sends, removed with the encoder matrix of (20, A) code in the first row and coded-bit corresponding to the second row, or removed and (20, A) the third line and coded-bit corresponding to fourth line in the encoder matrix of code, maximum with the control information of carrying in the first sequences of code bits that ensures to obtain.Accordingly, base station side is also adopted in the same way in the time that candidate's control information is encoded, the 5th sequences of code bits comprise (20, A) code encoder matrix in except the first row and the second row coded-bit corresponding to other row; Or, comprise in (20, A) encoder matrix coded-bit corresponding to other row except the third line and fourth line.

Base station, based on the 5th sequences of code bits corresponding to each candidate's control information, judges which candidate's control information is the control information that terminal sends.Judgment criterion in this step has multiple, and for example mode in Maximum Likelihood Detection, referring to previous embodiment, repeats no more.

Below only provided a kind of feasible decoded mode, not using this as restriction.

As preferably execution mode of another kind, referring to Fig. 8 b, S801a and S802a can also realize by mode below:

S801b, basis (18, A) code encoder matrix to candidate's control information coding, obtain the 5th sequences of code bits:

wherein, a ₀, a ₁, a ₂..., a _(A-1)for the bit sequence of candidate's control information, M _{i, n}(i=0,1,2 ..., B-1, n=0,1,2 ..., A-1) and be that in the encoder matrix of (18, A) code, capable, the n+1 of i+1 is listed as corresponding element, B=18.

In this step (18, A) encoder matrix of code is (20, A) in the encoder matrix of code, clip the first row (row of i=0) and the second row (row of i=1), or in the encoder matrix of (20, A) code, clip the encoder matrix that the third line (row of i=2) and fourth line (row of i=3) obtain.Wherein, in the encoder matrix of (20, A) code, clip the encoder matrix of (18, A) code that the first row and the second row obtain referring to table two, clip the encoder matrix of (18, A) code that the third line and fourth line obtain referring to table three.

In addition,, referring to Fig. 8 c, S801a and S802a can also be:

S801c, basis (20, A) encoder matrix are encoded to described candidate's control information, obtain the 7th sequences of code bits:

S802c, remove latter two coded-bit of the 7th sequences of code bits, obtain the 5th coded sequence.

The control information method of reseptance that the present embodiment provides, encode to candidate's control information respectively in base station, obtain 18 bits of encoded bit sequences, in this sequences of code bits, do not comprise (20, A) the first row and coded-bit corresponding to the second row in the encoder matrix of code, or do not comprise (20, A) code encoder matrix in the third line and coded-bit corresponding to fourth line, then according to the sequences of code bits of candidate's control information to receive control information carry out decoding.When the Physical Uplink Control Channel form blocking due to end side utilization sends control information, ensure because the information of other control information bits that cause two coded-bits of loss not carry the information of the 6th control information bit to last SC-FDMA symbol punching and to carry is also less, thereby reduce the Physical Uplink Control Channel blocking and blocked the performance loss of the control information that last SC-FDMA symbol brings, improved the transmission performance of control information; Simultaneously terminal in the end periodically sends SRS signal when a SC-FDMA symbol to base station, has improved the performance of system.

One of ordinary skill in the art will appreciate that: all or part of step that realizes said method embodiment can complete by the relevant hardware of program command, aforesaid program can be stored in a computer read/write memory medium, this program, in the time carrying out, is carried out the step that comprises said method embodiment; And aforesaid storage medium comprises: various media that can be program code stored such as ROM, RAM, magnetic disc or CDs.

Fig. 9 is terminal the first example structure schematic diagram provided by the invention, and as shown in Figure 9, this terminal comprises: coding mapping block 91 and sending module 92;

Wherein, coding mapping block 91, for being mapped to Physical Uplink Control Channel after control information coding;

Sending module 92, for the information being mapped on described Physical Uplink Control Channel is sent to base station, described sequences of code bits corresponding to information that sends to base station comprises in the encoder matrix of (20, A) code coded-bit corresponding to other row except the first row and the second row; Or, comprise in the encoder matrix of described (20, A) code coded-bit corresponding to other row except the third line and fourth line; A is the bit number of described control information.

The base station that the present embodiment provides, control information is encoded and is mapped to after Physical Uplink Control Channel, be sent in the information bit sequence of base station and do not comprise (20, A) the first row and coding corresponding to the second row in the encoder matrix of code, or do not comprise (20, A) code encoder matrix in the third line and coding corresponding to fourth line; The information of the bit in the control information of carrying in two coded-bits that remove is less, thereby reduce the Physical Uplink Control Channel blocking and blocked the performance loss of the control information that last SC-FDMA symbol brings, the transmission performance that has improved control information realizes terminal and in the end periodically sends SRS signal to base station when a SC-FDMA symbol, has improved the performance of system.

Figure 10 is terminal the second example structure schematic diagram provided by the invention, and referring to Figure 10, this terminal comprises: coding mapping block 91 and sending module 92;

Further, this coding mapping block 91 can comprise: the first coding submodule 911 and the first mapping submodule 912;

Wherein, the first coding submodule 911, for to control information coding, obtains the first sequences of code bits, and the first sequences of code bits comprises in the encoder matrix of (20, A) code coded-bit corresponding to other row except the first row and the second row; Or, comprise (20, A) code encoder matrix in except the third line and fourth line coded-bit corresponding to other row, the bit number that A is control information; The first mapping submodule 912 is mapped to Physical Uplink Control Channel for the first sequences of code bits that the first coding submodule 911 is obtained.

The terminal that the present embodiment provides, after terminal is encoded to control information, two coded-bits are removed, obtain the sequences of code bits of 18 bits, the sequences of code bits of this 18 bit is mapped on the Physical Uplink Control Channel blocking and is transmitted, two coded-bits of this being removed do not carry the information of the 6th control information bit and the information of other control information bits of carrying also less, thereby reduce the Physical Uplink Control Channel blocking and blocked the performance loss of the control information that last SC-FDMA symbol brings, improved the transmission performance of control information.

Figure 11 terminal provided by the invention the 3rd example structure schematic diagram, referring to Figure 11, this terminal comprises: coding mapping block 91 and sending module 92; This coding mapping block 91 may further include: the first coding submodule 911 and the first mapping submodule 912;

In addition, the first coding submodule 911 comprises: the first coding unit 9111 and the first processing unit 9112;

Wherein, the first coding unit 9111, for control information being encoded according to the encoder matrix of (20, A) code, obtains the second sequences of code bits:

wherein, a ₀, a ₁, a ₂..., a _(A-1)for the bit sequence of control information, M _{i, n}(i=0,1,2 ..., B-1, n=0,1,2 ..., A-1) and be that in the encoder matrix of (20, A) code, capable, the n+1 of i+1 is listed as corresponding element, B=20;

Second sequences of code bits of the first processing unit 9112 for obtaining at the first coding unit 9111, removes and encoder matrix the first row and the coded-bit corresponding to the second row of (20, A) code, obtains the first sequences of code bits; Or, in the second sequences of code bits, remove and encoder matrix the third line and the coded-bit corresponding to fourth line of (20, A) code, obtain the first sequences of code bits.

As another kind of preferred embodiment, the first coding submodule 911 can also be specifically for: according to the encoder matrix of (18, A) code, control information is encoded, obtain the first sequences of code bits:

wherein, a ₀, a ₁, a ₂..., a _(A-1)for the bit sequence of control information, M _{i, n}(i=0,1,2,, B-1, n=0,1,2 ... A-1) be (18, A) in the encoder matrix of code, capable, the n+1 of i+1 is listed as corresponding element, B=18, (18, A) encoder matrix of code is clipped the first row and the acquisition of the second row by the encoder matrix of (20, A) code; Or, clip the third line and fourth line acquisition by the encoder matrix of (20, A) code.

In addition, the first coding submodule 911 can also comprise:

The second coding unit 9113, for control information being encoded according to the encoder matrix of (20, A) code, obtains the 3rd sequences of code bits:

The second processing unit 9114, for removing latter two coded-bit of the 3rd sequences of code bits that the second coding unit 9113 obtains, obtains the first sequences of code bits.

The terminal that the present embodiment provides, be 18 bits of encoded bit sequences to the sequences of code bits obtaining after control information coding, in this sequences of code bits, do not comprise (20, A) the first row and coded-bit corresponding to the second row in encoder matrix, this 18 bits of encoded bit sequence obtains 9 QPSK modulation symbols after QPSK modulation, the sign map that these 9 QPSK modulation symbols obtain after band spectrum modulation is to front 9 the SC-FDMA symbols of PUCCH, last SC-FDMA symbol does not send control information, utilize last SC-FDMA symbol period and send SRS signal to base station, improve the performance of system.Two coded-bits that are removed do not carry the information of the 6th control information bit and the information of other control information bits of carrying also minimum, thereby reduce the Physical Uplink Control Channel blocking and blocked the performance loss of the control information that last SC-FDMA symbol brings, improved the transmission performance of control information.

Figure 12 is terminal provided by the invention the 4th example structure schematic diagram, and as shown in figure 12, this terminal comprises: coding mapping block 91 and sending module 92; Wherein, coding mapping block 91 can comprise: the second coding submodule 913, the second mapping submodule 914 and processing submodule 915;

Wherein, the second coding submodule 913, for to control information coding, obtains the 4th sequences of code bits;

The second mapping submodule 914 is for being mapped to Physical Uplink Control Channel by the 4th sequences of code bits, modulation symbol correspondence (20 after mapping on last SC-FDMA symbol of Physical Uplink Control Channel, A) the first row and coded-bit corresponding to the second row in the encoder matrix of code, or corresponding described (20, A) the third line and coded-bit corresponding to fourth line in the encoder matrix of code, the bit number that A is control information;

Process submodule 915, for removing last SC-FDMA symbol.

The terminal that the present embodiment provides, the coded-bit that is finally mapped to last SC-FDMA symbol of PUCCH do not carry the information of the 6th control information bit and the information of other control information bits of carrying also less, thereby reduce the Physical Uplink Control Channel blocking and blocked the performance loss of the control information that last SC-FDMA symbol brings, improved the transmission performance of control information.Simultaneously terminal in the end periodically sends SRS signal when a SC-FDMA symbol to base station, has improved the performance of system.

Terminal provided by the invention the 5th embodiment, this terminal comprises: coding mapping block 91 and sending module 92; Wherein, coding mapping block 91 can comprise: the second coding submodule 913, the second mapping submodule 914 and processing submodule 915;

Further, the second coding submodule 913 can be specifically for: according to the encoder matrix of (20, A) code, control information is encoded, obtain the 4th sequences of code bits:

b_{i} = Σ_{n = 0}^{A - 1} (a_{n} \cdot M_{i, n}) \mod 2, i = 0,1,2, L, B - 1,

Wherein, a ₀, a ₁, a ₂, L, a _(A-1)for the bit sequence of control information, M _{i, n}(i=0,1,2, L, B-1, n=0,1,2, L, A-1) is that in the encoder matrix of (20, A) code, capable, the n+1 of i+1 is listed as corresponding element, B=20;

Corresponding, the second mapping submodule 914 specifically for: by the 4th sequences of code bits with the encoder matrix of (20, A) code in the first row and modulation symbol corresponding to the corresponding coded-bit of the second row be mapped on last SC-FDMA symbol; Or, by the 4th sequences of code bits with the encoder matrix of (20, A) code in modulation symbol corresponding to the corresponding coded-bit of the third line and fourth line be mapped on last SC-FDMA symbol.

As another kind of preferred embodiment, the second mapping submodule 914 can be further used for: modulation symbol inverted order corresponding the 4th sequences of code bits is mapped on Physical Uplink Control Channel; Or, by in the 4th sequences of code bits with (20, A) in the encoder matrix of code, the first row and modulation symbol corresponding to the corresponding coded-bit of the second row are mapped on last SC-FDMA symbol, the modulation symbol that all the other coded-bits are corresponding is mapped on all the other SC-FDMA symbols of Physical Uplink Control Channel successively, and each modulation symbol is mapped on a SC-FDMA symbol.

The second mapping submodule 914 can also be further used for: by the 4th sequences of code bits with (20, A) in the encoder matrix of code, the third line and modulation symbol corresponding to the corresponding coded-bit of fourth line are mapped on last SC-FDMA symbol, the modulation symbol that all the other coded-bits are corresponding is mapped on all the other SC-FDMA symbols of Physical Uplink Control Channel successively, and each modulation symbol is mapped on a SC-FDMA symbol.

In addition, the second coding submodule 913 can also be specifically for: according to the encoder matrix of (20, A) code, control information is encoded, obtain the 4th sequences of code bits:

b_{i} = Σ_{n = 0}^{A - 1} (a_{n} \cdot M_{((i + 2) \mod 20), n}) \mod 2, i = 0,1,2, L, B - 1,

Wherein, M _{((i+2) mod20), n}(i=0,1,2, L, B-1, n=0,1,2, L, A-1) is that in the encoder matrix of (20, A) code, ((i+2) mod20)+1 row, n+1 are listed as corresponding element, B=20;

Corresponding, the second mapping submodule 914 can be specifically for: modulation symbol corresponding the 4th sequences of code bits is mapped on Physical Uplink Control Channel successively, each modulation symbol is mapped on a SC-FDMA symbol, and from first SC-FDMA sign-on mapping.

The terminal that the present embodiment provides, what last SC-FDMA symbol that terminal is removed carried is and (20, A) the first row and coded-bit corresponding to the second row or with (20 in the encoder matrix of code, A) the third line and coded-bit corresponding to fourth line in the encoder matrix of code, these two coded-bits do not carry the information of the 6th control information bit and the information of other control information bits of carrying also less, thereby reduce the Physical Uplink Control Channel blocking and blocked the performance loss of the control information that last SC-FDMA symbol brings, improve the transmission performance of control information.Simultaneously terminal in the end periodically sends SRS signal when a SC-FDMA symbol to base station, has improved the performance of system.

The terminal that above embodiment provides, is the concrete actuating equipment of control information sending method provided by the invention, and the concrete operating process of terminal, referring to the embodiment of control information sending method above, repeats no more.

Figure 13 is base station provided by the invention the first example structure schematic diagram, and this base station comprises: receiver module 20, coding module 21 and decoding module 22;

Wherein, the control information that receiver module 20 sends for receiving terminal;

Coding module 21, for to candidate's control information corresponding to control information coding, obtains the 5th sequences of code bits, and the 5th sequences of code bits comprises in the encoder matrix of (20, A) code coded-bit corresponding to other row except the first row and the second row; Or, comprise (20, A) code encoder matrix in except the third line and fourth line coded-bit corresponding to other row, A is the bit number of candidate's control information;

Decoding module 22 is for the control information decoding to reception according to the 5th sequences of code bits.

The base station that the present embodiment provides, encode to candidate's control information respectively in base station, obtain 18 bits of encoded bit sequences, in this sequences of code bits, do not comprise (20, A) the first row and coded-bit corresponding to the second row in the encoder matrix of code, or do not comprise (20, A) code encoder matrix in the third line and coded-bit corresponding to fourth line, then according to the sequences of code bits of candidate's control information to receive control information carry out decoding.When the Physical Uplink Control Channel form blocking due to end side utilization sends control information, ensure because the information of other control information bits that cause two coded-bits of loss not carry the information of the 6th control information bit to last SC-FDMA symbol punching and to carry is also less, thereby reduce the Physical Uplink Control Channel blocking and blocked the performance loss of the control information that last SC-FDMA symbol brings, improved the transmission performance of control information; Simultaneously terminal in the end periodically sends SRS signal when a SC-FDMA symbol to base station, has improved the performance of system.

Figure 14 is base station provided by the invention the second example structure schematic diagram, and this base station comprises: receiver module 20, coding module 21 and decoding module 22;

Further, coding module 21 comprises: the 3rd coding unit 211 and the 3rd processing unit 212;

The 3rd coding unit 211, for candidate's control information being encoded according to the encoder matrix of (20, A) code respectively, obtains the 6th sequences of code bits:

wherein, a ₀, a ₁, a ₂, L, a _(A-1)for the bit sequence of candidate's control information, M _{i, n}(i=0,1,2, L, B-1, n=0,1,2, L, A-1) is that in the encoder matrix of (20, A) code, capable, the n+1 of i+1 is listed as corresponding element, B=20;

The 3rd processing unit 212 for remove in the 6th sequences of code bits with the encoder matrix of (20, A) code in the first row and coded-bit corresponding to the second row, obtain the 5th sequences of code bits; Or, in the 6th sequences of code bits, remove with the encoder matrix of (20, A) code in the third line and coded-bit corresponding to fourth line, obtain the 5th sequences of code bits.

As another preferred embodiment, coding module 21 can also be specifically for: to candidate's control information coding, obtain the 5th sequences of code bits according to the encoder matrix of (18, A) code: wherein, a ₀, a ₁, a ₂, L, a _(A-1)for the bit sequence of candidate's control information, M _{i, n}(i=0,1,2, L, B-1, n=0,1,2, L, A-1) be (18, A) in the encoder matrix of code, capable, the n+1 of i+1 is listed as corresponding element, B=18, (18, A) encoder matrix of code is clipped the first row and the acquisition of the second row by the encoder matrix of (20, A) code; Or, clip the third line and fourth line acquisition by the encoder matrix of (20, A) code.

In addition, coding module 21 can also comprise: the 4th coding unit 213 and fourth processing unit 214;

The 4th coding unit 213, for candidate's control information being encoded according to the encoder matrix of (20, A) code, obtains the 7th sequences of code bits:

b_{i} = Σ_{n = 0}^{A - 1} (a_{n} \cdot M_{((i + 2) \mod 20), n}) \mod 2, i = 0,1,2, L, B - 1,

Fourth processing unit 214, for removing latter two coded-bit of the 7th sequences of code bits, obtains the 5th sequences of code bits.

The base station that above embodiment provides, is the concrete actuating equipment of control information method of reseptance provided by the invention, and the concrete operating process of terminal, referring to control information method of reseptance embodiment above, repeats no more.

Figure 15 is control information receive-transmit system the first example structure schematic diagram provided by the invention, and this system comprises terminal 30 and base station 31;

Terminal 30 is for being mapped to Physical Uplink Control Channel after control information coding; The information being mapped on Physical Uplink Control Channel is sent to base station 31, send to the sequences of code bits corresponding to information of base station 31 to comprise in the encoder matrix of (20, A) code coded-bit corresponding to other row except the first row and the second row; Or, comprise (20, A) code encoder matrix in except the third line and fourth line coded-bit corresponding to other row; A is the bit number of control information;

The control information that base station 31 sends for receiving terminal 30; To candidate's control information corresponding to control information coding, obtain the 5th sequences of code bits, the 5th sequences of code bits comprises in the encoder matrix of (20, A) code coded-bit corresponding to other row except the first row and the second row; Or, comprise (20, A) code encoder matrix in except the third line and fourth line coded-bit corresponding to other row, A is the bit number of candidate's control information; Control information decoding according to the 5th sequences of code bits to reception.

The control information receive-transmit system that the embodiment of the present invention provides, terminal is encoded to control information and is mapped to after Physical Uplink Control Channel, be sent in the information bit sequence of base station and do not comprise (20, A) the first row and coding corresponding to the second row in the encoder matrix of code, or do not comprise (20, A) code encoder matrix in the third line and coding corresponding to fourth line; The information of the bit in the control information of carrying in two coded-bits that remove is less, thereby reduce the Physical Uplink Control Channel blocking and blocked the performance loss of the control information that last SC-FDMA symbol brings, the transmission performance that has improved control information realizes terminal and in the end periodically sends SRS signal to base station when a SC-FDMA symbol, has improved the performance of system.

The control information receive-transmit system that above embodiment provides, specifically, referring to aforesaid control information method of reseptance and control information sending method embodiment, repeats no more.

Embodiment provided by the invention, performance gain in the time that the bit number A of control information gets different information bit is as shown in table 4, simulated conditions is: 5MHz bandwidth, classical city (TU:Typical Urban) channel, user equipment (UE) translational speed is 3 kilometers/hour, and antenna frame is 12 to be received, and adopts actual channel to estimate, transformat is the LTE PUCCH Format 2 blocking, and performance objective value is that Block Error Rate (BLER) equals 10e-3.While equaling 6 bit taking A, be example, under the present invention program the transmission performance of control information than 0.8 decibel of the transmission performance of control information under prior art (dB), BLER=10e-2, referring to table four:

6bit	7bit	8bit	9bit	10bit	11bit
						0.8dB	0.6dB	0.4dB	0.4dB	0.25dB	0.25dB

Table four

Finally it should be noted that: above embodiment only, in order to technical scheme of the present invention to be described, is not intended to limit; Although the present invention is had been described in detail with reference to previous embodiment, those of ordinary skill in the art is to be understood that: its technical scheme that still can record aforementioned each embodiment is modified, or part technical characterictic is wherein equal to replacement; And these amendments or replacement do not make the essence of appropriate technical solution depart from the spirit and scope of various embodiments of the present invention technical scheme.The information router that described method is applicable to the routing node in other various cordless communication networks forwards.

Claims

1. a control information sending method, is characterized in that, comprising:

The information being mapped on described Physical Uplink Control Channel is sent to base station, send to the sequences of code bits corresponding to information of base station to comprise in the encoder matrix of (20, A) code coded-bit corresponding to other row except the first row and the second row; Or, comprise in the encoder matrix of described (20, A) code coded-bit corresponding to other row except the third line and fourth line; A is the bit number of described control information.

2. method according to claim 1, is characterized in that, described will control information being mapped on Physical Uplink Control Channel after coding comprises:

To described control information coding, obtain the first sequences of code bits, described the first sequences of code bits comprises in the encoder matrix of described (20, A) code coded-bit corresponding to other row except the first row and the second row; Or, comprise in the encoder matrix of described (20, A) code coded-bit corresponding to other row except the third line and fourth line; A is the bit number of described control information;

Described the first sequences of code bits is mapped on described Physical Uplink Control Channel.

3. method according to claim 2, is characterized in that, described described control information coding is obtained to the first sequences of code bits, specifically comprises:

According to the encoder matrix of described (20, A) code, described control information is encoded, obtains the second sequences of code bits:

b_{i} = Σ_{n = 0}^{A - 1} (a_{n} \cdot M_{i, n}) \mod 2, i = 0,1,2, . . ., B - 1,

Wherein, a ₀, a ₁, a ₂..., a _(A-1)for the bit sequence of described control information, M _i,nfor i+1 in the encoder matrix of described (20, A) code is capable, n+1 is listed as corresponding element, wherein, i=0,1,2 ..., B-1, n=0,1,2 ..., A-1, B=20;

In described the second sequences of code bits, remove and encoder matrix the first row and the coded-bit corresponding to the second row of described (20, A) code, obtain described the first sequences of code bits; Or, in described the second sequences of code bits, remove and encoder matrix the third line and the coded-bit corresponding to fourth line of described (20, A) code, obtain described the first sequences of code bits.

4. method according to claim 2, is characterized in that, described described control information coding is obtained to the first sequences of code bits, is specially:

According to the encoder matrix of (18, A) code, described control information is encoded, obtains described the first sequences of code bits:

b_{i} = Σ_{n = 0}^{A - 1} (a_{n} \cdot M_{i, n}) \mod 2, i = 0,1,2, . . ., B - 1,

Wherein, a ₀, a ₁, a ₂..., a _(A-1)for the bit sequence of described control information, M _i,nfor i+1 in the encoder matrix of described (18, A) code is capable, n+1 is listed as corresponding element, wherein, i=0,1,2,, B-1, n=0,1,2 ... A-1, B=18, described (18, A) encoder matrix of code is clipped the first row and the acquisition of the second row by described (20, A) encoder matrix; Or, clip the third line and fourth line acquisition by the encoder matrix of described (20, A) code.

5. method according to claim 2, is characterized in that, described described control information coding is obtained to the first sequences of code bits, specifically comprises:

According to the encoder matrix of described (20, A) code, described control information is encoded, obtains the 3rd sequences of code bits:

b_{i} = Σ_{n = 0}^{A - 1} (a_{n} \cdot M_{((i + 2) \mod 20), n}) \mod 2, i = 0,1,2, . . ., B - 1,

Wherein, M _{((i+2) mod20), n}for ((i+2) mod20)+1 row, n+1 in the encoder matrix of described (20, A) code are listed as corresponding element, wherein, i=0,1,2 ..., B-1, n=0,1,2 ..., A-1, B=20;

Latter two coded-bit that removes described the 3rd sequences of code bits, obtains described the first sequences of code bits.

6. method according to claim 1, is characterized in that, described will control information being mapped on Physical Uplink Control Channel after coding comprises:

To described control information coding, obtain the 4th sequences of code bits;

Described the 4th sequences of code bits is mapped on Physical Uplink Control Channel, be mapped to described in the modulation symbol correspondence on last SC-FDMA symbol of described Physical Uplink Control Channel (20, A) the first row and coded-bit corresponding to the second row in the encoder matrix of code, or corresponding described (20, A) the third line and coded-bit corresponding to fourth line in the encoder matrix of code, the bit number that A is control information;

Describedly send to base station to comprise the information being mapped on described Physical Uplink Control Channel: to remove described last SC-FDMA symbol, all the other SC-FDMA symbols that are mapped to described Physical Uplink Control Channel are sent to base station.

7. method according to claim 6, is characterized in that, described to described control information coding, obtain the 4th sequences of code bits, be specially: according to the encoder matrix of described (20, A) code, described control information is encoded, obtain the 4th sequences of code bits:

b_{i} = Σ_{n = 0}^{A - 1} (a_{n} \cdot M_{i, n}) \mod 2, i = 0,1,2, . . ., B - 1,

Wherein, a ₀, a ₁, a ₂..., a _(A-1)for the bit sequence of described control information,

M _i,nfor i+1 in the encoder matrix of described (20, A) code is capable, n+1 is listed as corresponding element, wherein, i=0,1,2 ..., B-1, n=0,1,2 ..., A-1, B=20;

Described described the 4th sequences of code bits is mapped on Physical Uplink Control Channel, be specially: by described the 4th sequences of code bits with the encoder matrix of described (20, A) code in modulation symbol corresponding to the corresponding coded-bit of the first row and the second row be mapped on described last SC-FDMA symbol; Or, by described the 4th sequences of code bits with the encoder matrix of described (20, A) code in modulation symbol corresponding to the corresponding coded-bit of the third line and fourth line be mapped on described last SC-FDMA symbol.

8. method according to claim 7, it is characterized in that, described by described the 4th sequences of code bits with described (20, A) in the encoder matrix of code, the first row and modulation symbol corresponding to the corresponding coded-bit of the second row are mapped on described last SC-FDMA symbol, are specially:

Modulation symbol inverted order corresponding to described the 4th sequences of code bits is mapped on Physical Uplink Control Channel; Or, by in described the 4th sequences of code bits with described (20, A) in the encoder matrix of code, the first row and modulation symbol corresponding to the corresponding coded-bit of the second row are mapped on described last SC-FDMA symbol, the modulation symbol that all the other coded-bits are corresponding is mapped on all the other SC-FDMA symbols of described Physical Uplink Control Channel successively, and each modulation symbol is mapped on a SC-FDMA symbol.

9. method according to claim 7, it is characterized in that, described by described the 4th sequences of code bits with described (20, A) in the encoder matrix of code, the third line and modulation symbol corresponding to the corresponding coded-bit of fourth line are mapped on described last SC-FDMA symbol, are specially:

By in described the 4th sequences of code bits with described (20, A) in the encoder matrix of code, the third line and modulation symbol corresponding to the corresponding coded-bit of fourth line are mapped on described last SC-FDMA symbol, the modulation symbol that all the other coded-bits are corresponding is mapped on all the other SC-FDMA symbols of described Physical Uplink Control Channel successively, and each modulation symbol is mapped on a SC-FDMA symbol.

10. method according to claim 6, is characterized in that, described to described control information coding, obtain the 4th sequences of code bits, be specially: according to the encoder matrix of described (20, A) code, described control information is encoded, obtain the 4th sequences of code bits:

b_{i} = Σ_{n = 0}^{A - 1} (a_{n} \cdot M_{((i + 2) \mod 20), n}) \mod 2, i = 0,1,2, . . ., B - 1,

Described described the 4th sequences of code bits is mapped on Physical Uplink Control Channel, be specially: modulation symbol corresponding to described the 4th sequences of code bits is mapped on the SC-FDMA symbol of described Physical Uplink Control Channel successively, each modulation symbol is mapped on a SC-FDMA symbol, and from first SC-FDMA sign-on mapping.

11. 1 kinds of control information method of reseptances, is characterized in that, comprising:

The control information that receiving terminal sends;

The candidate control information coding corresponding to described control information, obtain the 5th sequences of code bits, described candidate's control information represents the possible sequence of described control information, described candidate's control information is to determine according to the bit number of described control information, described the 5th sequences of code bits comprise (20, A) code encoder matrix in except the first row and the second row coded-bit corresponding to other row; Or, comprising in the encoder matrix of described (20, A) code coded-bit corresponding to other row except the third line and fourth line, A is the bit number of described candidate's control information;

12. methods according to claim 11, is characterized in that, the described candidate control information coding corresponding to described control information, obtains the 5th sequences of code bits, specifically comprises:

According to the encoder matrix of described (20, A) code, described candidate's control information is encoded, obtains the 6th sequences of code bits:

b_{i} = Σ_{n = 0}^{A - 1} (a_{n} \cdot M_{i, n}) \mod 2, i = 0,1,2, . . ., B - 1,

Wherein, a ₀, a ₁, a ₂..., a _(A-1)for the bit sequence of described candidate's control information, M _i,nfor i+1 in the encoder matrix of described (20, A) code is capable, n+1 is listed as corresponding element, wherein, i=0,1,2 ..., B-1, n=0,1,2 ..., A-1, B=20;

In described the 6th sequences of code bits, remove with the encoder matrix of described (20, A) code in the first row and coded-bit corresponding to the second row, obtain described the 5th sequences of code bits; Or, in described the 6th sequences of code bits, remove with the encoder matrix of described (20, A) code in the third line and coded-bit corresponding to fourth line, obtain described the 5th sequences of code bits.

13. methods according to claim 11, is characterized in that, the described candidate control information coding corresponding to described control information, obtains the 5th sequences of code bits, is specially:

According to the encoder matrix of (18, A) code, described candidate's control information is encoded, obtains described the 5th sequences of code bits:

b_{i} = Σ_{n = 0}^{A - 1} (a_{n} \cdot M_{i, n}) \mod 2, i = 0,1,2, . . ., B - 1,

Wherein, a ₀, a ₁, a ₂..., a _(A-1)for the bit sequence of described candidate's control information, M _i,nfor i+1 in the encoder matrix of described (18, A) code is capable, n+1 is listed as corresponding element, wherein, i=0,1,2,, B-1, n=0,1,2 ... A-1, B=18, described (18, A) encoder matrix of code is clipped the first row and the acquisition of the second row by described (20, A) encoder matrix; Or, clip the third line and fourth line acquisition by the encoder matrix of described (20, A) code.

14. methods according to claim 11, is characterized in that, the described candidate control information coding corresponding to described control information, obtains the 5th sequences of code bits, specifically comprises:

According to the encoder matrix of described (20, A) code, described candidate's control information is encoded, obtains the 7th sequences of code bits:

b_{i} = Σ_{n = 0}^{A - 1} (a_{n} \cdot M_{((i + 2) \mod 20), n}) \mod 2, i = 0,1,2, . . ., B - 1,

Wherein, M _((i+2) _{mod20), n}for ((i+2) mod20)+1 row, n+1 in the encoder matrix of described (20, A) code are listed as corresponding element, wherein, i=0,1,2 ..., B-1, n=0,1,2 ..., A-1, B=20;

Latter two coded-bit that removes described the 7th sequences of code bits, obtains described the 5th sequences of code bits.

15. 1 kinds of terminals, is characterized in that, comprising:

Sending module, for the information being mapped on described Physical Uplink Control Channel is sent to base station, send to the sequences of code bits corresponding to information of base station to comprise in the encoder matrix of (20, A) code coded-bit corresponding to other row except the first row and the second row; Or, comprise in the encoder matrix of described (20, A) code coded-bit corresponding to other row except the third line and fourth line; A is the bit number of described control information.

16. terminals according to claim 15, is characterized in that, described coding mapping block comprises:

The first coding submodule, for to described control information coding, obtains the first sequences of code bits, and described the first sequences of code bits comprises in the encoder matrix of (20, A) code coded-bit corresponding to other row except the first row and the second row; Or, comprise in the encoder matrix of described (20, A) code coded-bit corresponding to other row except the third line and fourth line, the bit number that A is described control information;

The first mapping submodule, is mapped to Physical Uplink Control Channel for the first sequences of code bits that described the first coding submodule is obtained.

17. terminals according to claim 16, is characterized in that, described the first coding submodule comprises:

The first coding unit, for described control information being encoded according to the encoder matrix of described (20, A) code, obtains the second sequences of code bits:

b_{i} = Σ_{n = 0}^{A - 1} (a_{n} \cdot M_{i, n}) \mod 2, i = 0,1,2, . . ., B - 1,

The first processing unit, for described the second sequences of code bits obtaining at described the first coding unit, removes and encoder matrix the first row and the coded-bit corresponding to the second row of described (20, A) code, obtains described the first sequences of code bits; Or, in described the second sequences of code bits, remove and encoder matrix the third line and the coded-bit corresponding to fourth line of described (20, A) code, obtain described the first sequences of code bits.

18. terminals according to claim 16, is characterized in that, described first coding submodule specifically for: according to (18, A) code encoder matrix described control information is encoded, obtain described the first sequences of code bits:

b_{i} = Σ_{n = 0}^{A - 1} (a_{n} \cdot M_{i, n}) \mod 2, i = 0,1,2, . . ., B - 1,

Wherein, a ₀, a ₁, a ₂..., a _(A-1)for the bit sequence of described control information, M _i,nfor i+1 in the encoder matrix of described (18, A) code is capable, n+1 is listed as corresponding element, wherein, i=0,1,2,, B-1, n=0,1,2 ... A-1, B=18, described (18, A) encoder matrix of code is clipped the first row and the acquisition of the second row by the encoder matrix of described (20, A) code; Or, clip the third line and fourth line acquisition by the encoder matrix of described (20, A) code.

19. terminals according to claim 16, is characterized in that, described the first coding submodule comprises:

The second coding unit, for described control information being encoded according to the encoder matrix of described (20, A) code, obtains the 3rd sequences of code bits:

b_{i} = Σ_{n = 0}^{A - 1} (a_{n} \cdot M_{((i + 2) \mod 20), n}) \mod 2, i = 0,1,2, . . ., B - 1,

The second processing unit, for removing latter two coded-bit of the 3rd sequences of code bits that described the second coding unit obtains, obtains described the first sequences of code bits.

20. terminals according to claim 15, is characterized in that, described coding mapping block comprises:

The second coding submodule, for to control information coding, obtains the 4th sequences of code bits;

The second mapping submodule, for described the 4th sequences of code bits is mapped to Physical Uplink Control Channel, modulation symbol correspondence (20 after mapping on last SC-FDMA symbol of described Physical Uplink Control Channel, A) the first row and coded-bit corresponding to the second row in the encoder matrix of code, or corresponding described (20, A) the third line and coded-bit corresponding to fourth line in the encoder matrix of code, the bit number that A is control information;

Process submodule, for removing described last SC-FDMA symbol; Described sending module, specifically for being mapped to described Physical Uplink Control Channel, except described last SC-FDMA symbol, all the other SC-FDMA symbols send to base station.

21. terminals according to claim 20, is characterized in that, described second coding submodule specifically for: according to described (20, A) code encoder matrix described control information is encoded, obtain the 4th sequences of code bits:

b_{i} = Σ_{n = 0}^{A - 1} (a_{n} \cdot M_{i, n}) \mod 2, i = 0,1,2, . . ., B - 1,

Described the second mapping submodule specifically for: by described the 4th sequences of code bits with the encoder matrix of described (20, A) code in modulation symbol corresponding to the corresponding coded-bit of the first row and the second row be mapped on described last SC-FDMA symbol; Or, by described the 4th sequences of code bits with the encoder matrix of described (20, A) code in modulation symbol corresponding to the corresponding coded-bit of the third line and fourth line be mapped on described last SC-FDMA symbol.

22. terminals according to claim 21, is characterized in that, described the second mapping submodule is further used for: modulation symbol inverted order corresponding to described the 4th sequences of code bits is mapped on Physical Uplink Control Channel; Or, by in described the 4th sequences of code bits with described (20, A) in the encoder matrix of code, the first row and modulation symbol corresponding to the corresponding coded-bit of the second row are mapped on described last SC-FDMA symbol, the modulation symbol that all the other coded-bits are corresponding is mapped on all the other SC-FDMA symbols of described Physical Uplink Control Channel successively, and each modulation symbol is mapped on a SC-FDMA symbol.

23. terminals according to claim 21, it is characterized in that, described the second mapping submodule is further used for: by described the 4th sequences of code bits with described (20, A) in the encoder matrix of code, the third line and modulation symbol corresponding to the corresponding coded-bit of fourth line are mapped on described last SC-FDMA symbol, the modulation symbol that all the other coded-bits are corresponding is mapped on all the other SC-FDMA symbols of described Physical Uplink Control Channel successively, and each modulation symbol is mapped on a SC-FDMA symbol.

24. terminals according to claim 20, is characterized in that, described second coding submodule specifically for: according to (20, A) code encoder matrix described control information is encoded, obtain the 4th sequences of code bits:

b_{i} = Σ_{n = 0}^{A - 1} (a_{n} \cdot M_{((i + 2) \mod 20), n}) \mod 2, i = 0,1,2, . . ., B - 1,

Described the second mapping submodule specifically for: modulation symbol corresponding to described the 4th sequences of code bits is mapped on Physical Uplink Control Channel successively, each modulation symbol is mapped on a SC-FDMA symbol, and from first SC-FDMA sign-on mapping.

25. 1 kinds of base stations, is characterized in that, comprising:

Receiver module, the control information sending for receiving terminal;

Coding module, for the candidate control information coding corresponding to described control information, obtain the 5th sequences of code bits, described candidate's control information represents the possible sequence of described control information, described candidate's control information is to determine according to the bit number of described control information, described the 5th sequences of code bits comprise (20, A) code encoder matrix in except the first row and the second row coded-bit corresponding to other row; Or, comprising in the encoder matrix of described (20, A) code coded-bit corresponding to other row except the third line and fourth line, A is the bit number of described candidate's control information;

26. base stations according to claim 25, is characterized in that, described coding module comprises:

The 3rd coding unit, for described candidate's control information being encoded according to the encoder matrix of described (20, A) code respectively, obtains the 6th sequences of code bits:

b_{i} = Σ_{n = 0}^{A - 1} (a_{n} \cdot M_{i, n}) \mod 2, i = 0,1,2, . . ., B - 1,

The 3rd processing unit, for remove in described the 6th sequences of code bits with the encoder matrix of described (20, A) code in the first row and coded-bit corresponding to the second row, obtain described the 5th sequences of code bits; Or, in described the 6th sequences of code bits, remove with the encoder matrix of described (20, A) code in the third line and coded-bit corresponding to fourth line, obtain described the 5th sequences of code bits.

27. base stations according to claim 25, is characterized in that, described coding module specifically for: according to (18, A) code encoder matrix described candidate's control information is encoded, obtain described the 5th sequences of code bits:

b_{i} = Σ_{n = 0}^{A - 1} (a_{n} \cdot M_{i, n}) \mod 2, i = 0,1,2, . . ., B - 1,

Wherein, a ₀, a ₁, a ₂..., a _(A-1)for the bit sequence of described candidate's control information, M _i,nfor i+1 in the encoder matrix of described (18, A) code is capable, n+1 is listed as corresponding element, wherein, i=0,1,2,, B-1, n=0,1,2 ... A-1, B=18, described (18, A) encoder matrix of code is clipped the first row and the acquisition of the second row by the encoder matrix of described (20, A) code; Or, clip the third line and fourth line acquisition by the encoder matrix of described (20, A) code.

28. base stations according to claim 25, is characterized in that, described coding module comprises:

The 4th coding unit, for described candidate's control information being encoded according to the encoder matrix of described (20, A) code, obtains the 7th sequences of code bits:

b_{i} = Σ_{n = 0}^{A - 1} (a_{n} \cdot M_{((i + 2) \mod 20), n}) \mod 2, i = 0,1,2, . . ., B - 1,

Fourth processing unit, for removing latter two coded-bit of described the 7th sequences of code bits, obtains described the 5th sequences of code bits.