CN106161293A

CN106161293A - A kind of data transmission method and equipment

Info

Publication number: CN106161293A
Application number: CN201510166968.6A
Authority: CN
Inventors: 高雪娟; 邢艳萍; 沈祖康
Original assignee: China Academy of Telecommunications Technology CATT
Current assignee: China Academy of Telecommunications Technology CATT; Datang Mobile Communications Equipment Co Ltd
Priority date: 2015-04-09
Filing date: 2015-04-09
Publication date: 2016-11-23
Anticipated expiration: 2035-04-09
Also published as: WO2016161916A1; CN106161293B

Abstract

The invention discloses a kind of data transmission method and equipment, relevant merging can be carried out during in order to realize using many sub-frame chan-nel to estimate during transmitting terminal and receiving terminal carry out data transmission, thus improve transmitting terminal and the receiving terminal demodulation performance of receiving terminal when frequency departure.A kind of data transmission method of the transmitting terminal that the present invention provides includes: transmitting terminal is grouped the number of the subframe group obtained according to the total transmission subframe taking current transmission block needs, described transmission block is carried out chnnel coding, sequence after being encoded；Described transmitting terminal, according to sequence after the number of described subframe group and described coding, obtains organizing quadrature amplitude modulation qam symbol more；Described many group qam symbols are sent to receiving terminal by the plurality of subframe group by described transmitting terminal, and in any of which subframe group, each subframe repeats to transmit one group of qam symbol.

Description

A kind of data transmission method and equipment

Technical field

The present invention relates to communication technical field, particularly relate to a kind of data transmission method and equipment.

Background technology

Machinery compartment (M2M, Machine-to-machine) communicates as a kind of novel communication theory, its Purpose is the communication technology of number of different types to be organically combined, such as: machine-to-machine communication, machine control System communication, man-machine interaction communication, mobile interchange communication, thus promote the development of social production and life style. The business of anticipated following Human To Human's communication may only account for the 1/3 of whole terminal market, and greater amount of communication It it is machinery compartment (little bandwidth system) communication service.

Current mobile communications network is for interpersonal communication scheme, such as: network capacity Determine.It is it desired to utilize mobile communications network to support that little bandwidth system communication is accomplished by according to little bandwidth The mechanism of mobile communication system is optimized by the feature of system communication, so as to traditional person to person Communication is not subject to or by the case of less impact, little bandwidth system communication is better achieved.

The MTC communication characteristics more that may be present being currently recognized that have:

Machine-type communication (MTC, Machine Type Communications) terminal has Hypomobility；

The time that MTC terminal and network side carry out data transmission is controlled；I.e. MTC terminal can only be at net Access in the time period that network is specified.

The data transmission that MTC terminal and network side are carried out is the highest to requirement of real-time to data transmission, it may be assumed that There is time tolerance；

MTC terminal energy constraint, it is desirable to extremely low power consumption；

The information transmission of small data quantity is only carried out between MTC terminal and network side；

MTC terminal can be managed in units of group.

One actual MTC terminal can have above-mentioned one or more characteristics.

The coverage enhancement technology introduction of M2M transmission is as follows:

Technology of Internet of things is in the ascendant, 3-G (Generation Three mobile communication system) and its long evolving system (LTE, Long Term Evolution) in need support MTC function.One MTC device (or claim MTC eventually End) it is likely to be of the part of properties among multiple M2M communication characteristic, such as: Hypomobility, transmission number According to amount little, insensitive to communication delay, require the features such as extremely low power dissipation.

Existing based on global system for mobile communications (GSM, Global System for Mobile Communication), in the M2M network of technology, operator finds the terminal worked under some scene, Such as work in basement, market or the terminal in building corner, owing to wireless signal is seriously blocked, letter Number by the biggest decay, above-mentioned terminal cannot communicate with network, and for carrying out net under these scenes The degree of depth covering of network can be greatly increased the networking cost of network.Operator is through test, it is believed that need GSM Existing coverage enhancement such as 15dB just can meet the covering demand of above-mentioned scene.Follow-up Long Term Evolution (LTE, Long Term Evolution) technology can substitute GSM for M2M transmit, owing to LTE with GSM covers Lid is substantially suitable, and therefore, LTE technology is also required to the covering strengthening such as 15dB to meet under above-mentioned scene M2M transmission requirement.

The coverage enhancement of 15dB to be accomplished, a kind of the most feasible method is to need letter existing to LTE system Road uses and repeats transmission or similar techniques, in theory can be by existing physical channel carrying out tens times to several Repeat transmission for hundred times and obtain the covering gain of 15dB.

Prior art uses the method for repeat mechanism to realize coverage enhancement, needs to take more channel resource, Reduce efficiency of transmission, add power consumption of terminal, it addition, same time-frequency domain resources is only used for a user Repeat transmission, reduce system multiplexing capacity.In order to solve above-mentioned drawback, it is also contemplated that use based on Physical uplink control channel (Physical Uplink Control Channel, PUCCH) structural transmission Transmission block (TB, Transport Block), by TB through chnnel coding (can include rate matching procedure) After encoded infonnation be divided in multiple subframe, each subframe is all based on PUCCH structural transmission.Separately On the one hand, in order to reduce number of repetition as far as possible, through research, find to estimate it is that one has across sub-frame chan-nel The means of effect.So-called estimate across sub-frame chan-nel, refer to utilize the reference signal in multiple subframe to carry out associating letter Road is estimated, a kind of typical processing mode is the result that multiple sub-frame chan-nel are estimated to be weighted averagely.Phase Ying Di, the data division of multiple subframes carries out relevant merging.And the premise merged that is concerned with is for merging The signal sent in multiple subframes is identical.But, due to PUCCH structure holding in a subframe Carrying finite capacity, the information after TB coding needs to be divided in multiple subframe to be transmitted, and causes in different subframe The information of transmission is different, it is impossible to carry out relevant merging.

In sum, prior art uses many subframes to believe during transmitting terminal and receiving terminal carry out data transmission Road cannot be carried out relevant merging when estimating, therefore causes transmitting terminal and the receiving terminal receiving terminal when frequency departure Demodulation performance is poor.

Summary of the invention

Embodiments provide a kind of data transmission method and equipment, in order to realize in transmitting terminal and reception End can carry out relevant merging when using many sub-frame chan-nel to estimate during carrying out data transmission, thus improve and send out Sending end and the receiving terminal demodulation performance of receiving terminal when frequency departure.

A kind of data transmission method that the embodiment of the present invention provides, including:

Transmitting terminal needs the total transmission subframe taken to be grouped the subframe obtained according to current transmission block The number of group, carries out chnnel coding to described transmission block, sequence after being encoded；

Described transmitting terminal, according to sequence after the number of described subframe group and described coding, obtains organizing positive intermodulation more Width qam symbol；

Described many group qam symbols are sent to receiving terminal by the plurality of subframe group by described transmitting terminal, its In in arbitrary subframe group each subframe repeat to transmit one group of qam symbol.

With it, the transmitting terminal of data needs the total transmission subframe taken to enter according to current transmission block The number of the subframe group that row packet obtains, carries out chnnel coding to described transmission block, sequence after being encoded, Sequence after number according to described subframe group and described coding, obtains organizing quadrature amplitude modulation qam symbol more, By the plurality of subframe group, described many group qam symbols are sent to receiving terminal, in any of which subframe group Each subframe repeats to transmit one group of qam symbol, the coding that therefore TB calculates according to the number of subframe group Rear bit number carries out chnnel coding and rate-matched, it is ensured that participate in the same group of subframe that many sub-frame chan-nel are estimated In each subframe in transmit identical data message, thus carried out data transmission at transmitting terminal and receiving terminal Relevant merging can be carried out when journey using many sub-frame chan-nel estimate, improve transmitting terminal and receiving terminal in frequency The demodulation performance of receiving terminal during deviation.

It is preferred that the number of described subframe group isAfter described coding, sequence is a length of: Bit, wherein, M is total transmission number of sub frames that described transmission block needs to take, N For participating in the number of sub frames estimated across sub-frame chan-nel, C is the bit number of each subframe maximum carrying.

It is preferred that described transmitting terminal is according to sequence after the number of described subframe group and described coding, obtain many Group qam symbol, including:

Sequence after described coding is grouped by described transmitting terminal according to the number of described subframe group, obtains many groups Sequence after coding, obtains organizing QAM symbol to after after described many group codings, sequence carries out QAM modulation respectively more Number；Or,

Sequence after described coding is carried out QAM modulation by described transmitting terminal, and after modulating, sequence is according to described son The number of frame group is grouped, and obtains organizing qam symbol more.

It is preferred that before carrying out described QAM modulation, the method also includes: sequence after described coding is entered Row scrambling.

During it is preferred that transmit qam symbol in each subframe, use a kind of Physical Uplink Control Channel PUCCH format, carries out qam symbol transmission at the transfer resource corresponding to described PUCCH format.

Receiving terminal determines that the total transmission subframe taking current transmission block is grouped each son obtained The quadrature amplitude modulation qam symbol that frame group receives, in any of which subframe group, each subframe repeats to transmit identical Qam symbol；

The qam symbol that described receiving terminal receives based on described each subframe group, determines that transmitting terminal is according to right Total transmission subframe that described transmission block takies carries out being grouped the number of the subframe group obtained, to described transmission block Carry out sequence after the coding that chnnel coding obtains；

Described receiving terminal carries out channel decoding to sequence after described coding, obtains described transmission block.

With it, the receiving terminal of data determines that the total transmission subframe taking current transmission block is carried out The quadrature amplitude modulation qam symbol that each subframe group that packet obtains receives, each in any of which subframe group Subframe repeats to transmit identical qam symbol, and described receiving terminal receives based on described each subframe group Qam symbol, determines that transmitting terminal carries out packet according to the total transmission subframe taking described transmission block and obtains The number of subframe group, described transmission block is carried out sequence after the coding that chnnel coding obtains, described receiving terminal Sequence after described coding is carried out channel decoding, obtains described transmission block, due to TB according to subframe group Bit number after the coding that number calculates carries out chnnel coding and rate-matched, it is ensured that participate in many sub-frame chan-nel Each subframe in the same group of subframe estimated transmits identical data message, thus in transmitting terminal and reception End can carry out relevant merging when using many sub-frame chan-nel to estimate during carrying out data transmission, improves transmission End and receiving terminal demodulation performance of receiving terminal when frequency departure.

It is preferred that described receiving terminal determines that the total transmission subframe taking current transmission block is grouped To the qam symbol that receives of each subframe group, including:

Total transmission subframe for taking current transmission block is grouped the arbitrary subframe group obtained:

The data symbol that each subframe in this subframe group receives is carried out closing between subframe by described receiving terminal And, obtain the data symbol after the merging that this subframe group is corresponding；And, it is thus achieved that the connection that this subframe group is corresponding Close channel estimation value；

Described receiving terminal uses the joint channel estimation value that this subframe group is corresponding, the merging corresponding to this subframe group After data symbol carry out channel compensation, by the QAM symbol after channel compensation corresponding for this subframe group of obtaining Number, it is defined as the qam symbol received in this subframe group.

It is preferred that the qam symbol that described receiving terminal receives based on described each subframe group, determine transmission End is grouped the number of the subframe group obtained according to the total transmission subframe taking described transmission block, right Described transmission block carries out sequence after the coding that chnnel coding obtains, including:

Described receiving terminal receives qam symbol in described each subframe group, and connects described each subframe group The qam symbol received is demodulated, and obtains sequence after the coding that described each subframe group is corresponding, by described After the coding that each subframe group is corresponding, sequence cascade, obtains transmitting terminal total according to take described transmission block Transmission subframe carry out being grouped the number of the subframe group obtained, described transmission block is carried out chnnel coding and obtains Coding after sequence；Or,

Described receiving terminal receives qam symbol in described each subframe group, and described each subframe group is connect The qam symbol cascade received, is demodulated the qam symbol after cascade, obtains transmitting terminal according to right Total transmission subframe that described transmission block takies carries out being grouped the number of the subframe group obtained, to described transmission Block carries out sequence after the coding that chnnel coding obtains.

It is preferred that after carrying out described demodulation, the method also includes: sequence after described coding is solved Disturb.

During it is preferred that receive qam symbol in each subframe, use a kind of Physical Uplink Control Channel PUCCH format, carries out qam symbol reception at the transfer resource corresponding to described PUCCH format.

A kind of data transmission set that the embodiment of the present invention provides, including:

First module, for when described equipment is as transmitting terminal, according to take current transmission block needs Total transmission subframe carries out being grouped the number of the subframe group obtained, and described transmission block is carried out chnnel coding, Sequence after coding；

Second unit, sequence after the number according to described subframe group and described coding, obtain just organizing more Intermodulation width qam symbol；

Unit the 3rd, for described many group qam symbols being sent to receiving terminal by the plurality of subframe group, In any of which subframe group, each subframe repeats to transmit one group of qam symbol.

It is preferred that described second unit specifically for:

Sequence after described coding is grouped according to the number of described subframe group, obtains organizing coding postorder more Row, obtain organizing qam symbol to after after described many group codings, sequence carries out QAM modulation respectively more；Or,

Sequence after described coding is carried out QAM modulation, and after modulating, sequence is according to the number of described subframe group It is grouped, obtains organizing qam symbol more.

It is preferred that before described second unit carries out described QAM modulation, be additionally operable to: after described coding Sequence scrambles.

During it is preferred that described Unit the 3rd transmits qam symbol in each subframe, use one physically Row controls channel PUCCH format, carries out QAM at the transfer resource corresponding to described PUCCH format Symbol transmission.

It is preferred that also include:

Unit the 4th, for when described equipment is as receiving terminal, determines total take current transmission block Transmission subframe carry out being grouped the quadrature amplitude modulation qam symbol that each subframe group obtained receives, Qi Zhongren In one subframe group, each subframe repeats to transmit identical qam symbol；

Unit the 5th, for the qam symbol that receives based on described each subframe group, determine transmitting terminal by The number of the subframe group obtained it is grouped, to described biography according to total transmission subframe that described transmission block is taken Defeated piece carries out sequence after the coding that chnnel coding obtains；

Unit the 6th, for sequence after described coding is carried out channel decoding, obtains described transmission block.

It is preferred that described Unit the 4th specifically for:

Carry out the data symbol that each subframe in this subframe group receives merging between subframe, obtain this son Data symbol after the merging that frame group is corresponding；And, it is thus achieved that the joint channel estimation that this subframe group is corresponding Value；

Use the joint channel estimation value that this subframe group is corresponding, data symbols merging after corresponding to this subframe group Number carry out channel compensation, by the qam symbol after channel compensation corresponding for this subframe group of obtaining, be defined as At the qam symbol that this subframe group receives.

It is preferred that described Unit the 5th specifically for:

Qam symbol is received in described each subframe group, and described each subframe group is received Qam symbol is demodulated, and obtains sequence after the coding that described each subframe group is corresponding, by described each son After the coding that frame group is corresponding, sequence cascade, obtains transmitting terminal according to the total transmission taking described transmission block Subframe carries out being grouped the number of the subframe group obtained, and described transmission block is carried out the coding that chnnel coding obtains Rear sequence；Or,

Qam symbol is received in described each subframe group, and described each subframe group is received Qam symbol cascades, and is demodulated the qam symbol after cascade, obtains transmitting terminal according to described biography The defeated piece of total transmission subframe taken carries out being grouped the number of the subframe group obtained, and carries out described transmission block Sequence after the coding that chnnel coding obtains.

It is preferred that after described Unit the 5th carries out described demodulation, be additionally operable to: to sequence after described coding Descramble.

During it is preferred that described Unit the 4th receives qam symbol in each subframe, use one physically Row controls channel PUCCH format, carries out QAM at the transfer resource corresponding to described PUCCH format Symbol receives.

Accompanying drawing explanation

A kind of schematic flow sheet of the data transmission method of the transmitting terminal that Fig. 1 provides for the embodiment of the present invention；

A kind of schematic flow sheet of the data transmission method of the receiving terminal that Fig. 2 provides for the embodiment of the present invention；

Under the conventional cyclic prefix (Cyclic Prefix, CP) that Fig. 3 provides for the embodiment of the present invention based on The transmission structure schematic diagram of PUCCH pattern (format) 2；

Transmission structure based on PUCCH format 2 under the extension CP that Fig. 4 provides for the embodiment of the present invention Schematic diagram；

Transmission based on PUCCH format 1b knot under the conventional CP that Fig. 5 provides for the embodiment of the present invention Structure schematic diagram；

Transmission based on PUCCH format 1b knot under the extension CP that Fig. 6 provides for the embodiment of the present invention Structure schematic diagram；

Transmission based on PUCCH format 1b knot under the conventional CP that Fig. 7 provides for the embodiment of the present invention Structure schematic diagram；

Transmission based on PUCCH format 1b knot under the extension CP that Fig. 8 provides for the embodiment of the present invention Structure schematic diagram；

Transmission structure based on PUCCH format 3 under the conventional CP that Fig. 9 provides for the embodiment of the present invention Schematic diagram；

Transmission based on PUCCH format 3 knot under the extension CP that Figure 10 provides for the embodiment of the present invention Structure schematic diagram；

Transmission based on PUCCH format 3 knot under the conventional CP that Figure 11 provides for the embodiment of the present invention Structure schematic diagram；

Transmission based on PUCCH format 3 knot under the extension CP that Figure 12 provides for the embodiment of the present invention Structure schematic diagram；

The structural representation of a kind of data transmission set that Figure 13 provides for the embodiment of the present invention；

The structural representation of the another kind of data transmission set that Figure 14 provides for the embodiment of the present invention；

A kind of structural representation of the data transmission set of the network side that Figure 15 provides for the embodiment of the present invention；

A kind of structural representation of the data transmission set of the end side that Figure 16 provides for the embodiment of the present invention.

Detailed description of the invention

See Fig. 1, at transmitting terminal, a kind of data transmission method that the embodiment of the present invention provides, including step:

S101, transmitting terminal are according to current transmission block needing total transmission subframe of taking be grouped obtain The number of subframe group, carries out chnnel coding to described transmission block, sequence after being encoded；

S102, described transmitting terminal, according to sequence after the number of described subframe group and described coding, obtain many groups Quadrature amplitude modulation qam symbol；

Described many group qam symbols are sent to receive by S103, described transmitting terminal by the plurality of subframe group End, in any of which subframe group, each subframe repeats to transmit one group of qam symbol.

With it, the transmitting terminal of data needs the total transmission subframe taken to enter according to current transmission block The number of the subframe group that row packet obtains, carries out chnnel coding to described transmission block, sequence after being encoded, The coded bit number that i.e. TB calculates according to the number of subframe group carries out chnnel coding and rate-matched；Root According to sequence after the number of described subframe group and described coding, obtain organizing quadrature amplitude modulation qam symbol more, logical Cross the plurality of subframe group and described many group qam symbols are sent to receiving terminal, every in any of which subframe group One subframe repeats to transmit one group of qam symbol, thereby ensure that the same group of son that the many sub-frame chan-nel of participation are estimated Each subframe in frame is transmitted identical data message, thus carries out data transmission at transmitting terminal and receiving terminal During can carry out relevant merging when using many sub-frame chan-nel to estimate, improve transmitting terminal and receiving terminal at frequency The demodulation performance of receiving terminal during rate deviation.

It should be noted that in the embodiment of the present invention, need the total transmission subframe taken to carry out transmission block Dividing, obtain multiple subframe group, concrete dividing mode can have multiple, can be average division, the most often The number of sub frames comprised in one subframe group is identical, it is also possible to be random division, the son comprised in different subframe groups Frame number can be the same or different.

M subframe, in order to realize conveniently, can be divided into by the embodiment of the present inventionIndividual subframe group, then, The transmission block of a length of K bit is carried out chnnel coding, obtains a length ofBit Sequence after coding.Note transmits Q in i-th subframe group_iIndividual quadrature amplitude modulation (Quadrature Amplitude Modulation, QAM) symbol, these Q_iIndividual qam symbol can be designated as q_1, q_2 ..., q_Qi}, Described Q_iIndividual qam symbol is by the K in sequence after the coding of described a length of S bit_iIndividual bit obtains, Wherein,The qam symbol of each sub-frame transmission in same subframe group is identical.

As MOD (M, N) > 0 time,Individual subframe group exists the number of sub frames in a subframe group not enough N number of, it is MOD (M, N) individual, remainingNumber of sub frames included in individual subframe group is all N number of； Such as, first or last subframe group comprise MOD (M, N) individual subframe；Wherein, MOD (M, N) remainder that M obtains is represented divided by N.

Chnnel coding described in the embodiment of the present invention can be: turbo coding, convolutional encoding or RM Coding.

Described a length of S is transmitted on the channel resource that i.e. embodiment of the present invention is corresponding in described M subframe Sequence after the coding of bit, specifically includes following two method:

Method one: sequence after the coding of S bit is divided intoGroup, after often group carries out QAM modulation, Obtain Q_iIndividual qam symbol, by this Q_iThe individual qam symbol each subframe in each subframe group repeats Transmission.

Method two: sequence after the coding of S bit is carried out QAM modulation, is divided into sequence after modulation Group, often group obtains Q_iIndividual qam symbol, by this Q_iThe individual qam symbol every height in each subframe group Frame repeats transmission.

The modulation system of the QAM modulation described in the embodiment of the present invention can be: two-phase PSK signal (BPSK, Binary Phase Shift Keying), QPSK signal (QPSK, Quadrature Phase Shift Keying), 16QAM, 64QAM or 256QAM modulation.

Wherein, spendable PUCCH format in the embodiment of the present invention, can be PUCCH format 1, Format 1a, format 1b, format 2, format 2a, format 2b or format 3.

Wherein, C is relevant to the PUCCH format of use, (assumes to make for PUCCH format 1/1a Modulate with BPSK), C=1, for PUCCH format 1b (assume use QPSK modulation), C=2, For PUCCH format 2/2a/2b (assuming to use QPSK modulation), C=20, for PUCCH format 3 (assuming to use QPSK modulation), C=48.

In said process, sending process for upstream data, transmitting terminal can be terminal, i.e. subscriber equipment (UE, User Equipment), receiving terminal can be base station；Process is sent for downlink data, sends End can be base station, and receiving terminal can be terminal, i.e. UE.

Correspondingly, at receiving terminal, see Fig. 2, a kind of data transmission method that the embodiment of the present invention provides, Including step:

S201, receiving terminal determine and are grouped, in the total transmission subframe taking current transmission block, obtain every The quadrature amplitude modulation qam symbol that one subframe group receives, in any of which subframe group, each subframe repeats transmission Identical qam symbol；

The qam symbol that S202, described receiving terminal receive based on described each subframe group, determines transmitting terminal The number of the subframe group obtained it is grouped, to described according to total transmission subframe that described transmission block is taken Transmission block carries out sequence after the coding that chnnel coding obtains；

S203, described receiving terminal carry out channel decoding to sequence after described coding, obtain described transmission block.

The joint channel estimation value that one subframe group of described acquisition is corresponding, specifically includes: for this subframe group In each subframe, based on the frequency pilot sign received in this subframe, it is thus achieved that channel corresponding to this subframe is estimated Value, carries out channel estimation value corresponding for each subframe in this subframe group merging between subframe, obtains this son The multi-subframe integrated channel estimation value that frame group is corresponding；Or, each subframe in this subframe group is received Frequency pilot sign carries out after removing sequence information merging between subframe, obtains leading after the merging that this subframe group is corresponding Frequency symbol, obtains, based on the frequency pilot sign after the merging that this subframe group is corresponding, many subframes that this subframe group is corresponding Joint channel estimation value；Or, the frequency pilot sign received based on each subframe in this subframe group is somebody's turn to do Frequency pilot sign channel estimation value (i.e. this frequency pilot sign place in each subframe of subframe Channel estimation value on SC-FDMA/OFDM symbol), by the pilot tone in each subframe in this subframe group Symbol estimated value carries out merging between subframe, obtains the letter of the frequency pilot sign after the merging that this subframe group is corresponding Road estimated value, based on the frequency pilot sign channel estimation value after the merging that this subframe group is corresponding, obtains this subframe The multi-subframe integrated channel estimation value that group is corresponding；When above-mentioned sequence information can be included in generation frequency pilot sign, The cyclic shift carried out on the basis of pilot tone basic sequence, time domain orthogonal spread spectrum (i.e. with certain length time Territory orthogonal spreading sequence is multiplied) etc. operation introduce information；The process removing sequence information i.e. removes circulation shifting The process of the information such as position, time domain orthogonal frequency expansion sequence, is specifically as follows inverse process when producing frequency pilot sign； Above-mentioned obtain this subframe frequency pilot sign channel estimation value time, at least include the process removing sequence information, also May further include other processes such as smooth, denoising.

Such as, i-th subframe group receives Q_iIndividual qam symbol, specifically includes:

Each subframe in i-th subframe group receives Q_iIndividual qam symbol, by this i-th subframe group In each subframe in the Q that receives_iIndividual qam symbol carries out merging between subframe, the Q after being merged_i Individual qam symbol；

Each subframe in i-th subframe group receives frequency pilot sign, for each subframe, based on this son The frequency pilot sign received in frame obtains the channel estimation value that this subframe is corresponding, by this i-th subframe group The channel estimation value that each subframe correspondence obtains carries out merging between subframe, obtains this i-th subframe group corresponding Joint channel estimation value；Or, each subframe in i-th subframe group receives frequency pilot sign, for Each subframe, is removed sequence information operation, by this i-th to the frequency pilot sign received in this subframe The frequency pilot sign removing sequence information corresponding to each subframe in subframe group carries out merging between subframe, is somebody's turn to do Frequency pilot sign after the merging that i-th subframe group is corresponding, based on after the merging that this i-th subframe group is corresponding Frequency pilot sign obtains the channel estimation value after the merging that this i-th subframe group is corresponding；Or, at i-th Each subframe in frame group receives frequency pilot sign, for each subframe, based on leading of receiving in this subframe Frequency symbol obtains pilot channel estimation values, by pilot channel corresponding for each subframe in this i-th subframe group Estimated value carries out merging between subframe, obtains the pilot channel estimation values after the merging that this i-th subframe group is corresponding, This i-th subframe group is obtained corresponding based on the pilot channel estimation values after the merging that this i-th subframe group is corresponding Joint channel estimation value；Or, above-mentioned merging it is also conceivable to the pilot tone in the subframe in other subframe groups Symbol, the channel estimation value after the merging that i.e. i-th subframe group is corresponding can be not limited to according only to this i-th Frequency pilot sign in each subframe in individual subframe group obtains, it is also contemplated that in the subframe in other subframes Frequency pilot sign.

Use i-th subframes combine and after channel estimation value to i-th subframes combine and after Q_iIndividual QAM Symbol carries out channel compensation, obtains the Q after i-th subframe group channel compensation_iIndividual qam symbol, as The Q received in i-th subframe group_iIndividual qam symbol.

Wherein, concrete merging mode can be weighted average mode.

At the data transmission method of receiving terminal, such as, include:

M subframe is divided intoIndividual subframe group, receives Q in i-th subframe group_iIndividual qam symbol Q_1, q_2 ..., q_Qi}, described Q_iIndividual qam symbol is by sequence after the coding of described a length of S bit In K_iIndividual bit obtains, wherein,Each sub-frame transmission in same subframe group Qam symbol is identical, M be this transmission block take always transmit number of sub frames, N for participate in estimate across sub-frame chan-nel The number of sub frames of meter, MOD (M, N) represents the remainder that M obtains divided by N；

Based on the QAM modulation symbol received in M subframe, obtain a length of Sequence after the coding of bit, wherein, C is the bit number of the maximum carrying in a subframe；

To a length ofAfter the coding of bit, sequence carries out channel decoding, obtains a length of The transmission block of K bit, wherein, C is the bit number of the maximum carrying in a subframe.

In said process, receiving process for upstream data, receiving terminal is base station, and transmitting terminal is terminal；Right Receiving process in downlink data, receiving terminal is terminal, and transmitting terminal is base station.

The illustration of several specific embodiment is given below.

Embodiment 1: the size assuming 1 TB is K=72 bit, transmits in M=100 subframe, Every N=4 subframe one group carries out multi-subframe integrated channel estimation, carries out based on PUCCH format2 structure Transmission, i.e. uses QPSK modulation, can transmit C=20 bits of encoded information (10 in each subframe QPSK modulation symbol), take 1 Physical Resource Block (Physical Resource Block, PRB) and carry out Transmission, concrete data transmission structure as it is shown on figure 3, IFFT therein represents inverse fast Fourier transform, Concrete data transmission procedure is as follows:

Transmitting terminal:

Step one: coding

The transmission block of a length of K=72 bit is through turbo coding (or convolutional encoding) and rate-matched After, obtain lengthSequence after bits of encoded；

Step 2: packet

Method one: bit is grouped

Sequence after coding is divided intoGroup, often group comprises K_iInformation after=20 bits of encoded；Such as 1st～20 bits are first group, and the 21st～40 bits are second group, by that analogy, and 20* (i-1)+1～20*i Bit is i-th group, i=1,2 ... 25；

20 bit informations in often group are carried out QPSK modulation, group often obtains Q_i=10 QPSK adjust Symbol processed；

Method two: modulation symbol is grouped

Sequence after the coding of above-mentioned a length of S=500 bit is carried out QPSK modulation, obtains 250 QPSK Modulation symbol；

250 QPSK modulation symbols are divided intoGroup, often group comprises Q_i=10 QPSK adjust Symbol processed；Such as the 1st～10 QPSK modulation symbol is first group, the 11st～20 QPSK modulation symbol Number being second group, by that analogy, 10* (i-1)+1～10*i QPSK modulation symbol are i-th group, I=1,2 ... 25；

Step 3: transmission

Take one group of Q successively_i=10 QPSK modulation symbols, transmit in N=4 subframe；Particularly as follows: take First group of Q₁=10 QPSK modulation symbols, the N in the 1st subframe group₁Individual subframe is transmitted, example If the 1st subframe group is the 1st～4 subframe in 100 subframes, N₁=N=4, wherein, in this subframe In each subframe in group, it is repeated below step transmission；Then, second group of Q is taken₂=10 QPSK modulation Symbol, the N in the 2nd subframe group₂Transmitting in individual subframe, such as the 2nd subframe group is 100 sons The the 5th～8 subframe in frame, N₂=N=4, wherein, in each subframe in this subframe group, repeats such as Lower step is transmitted；By that analogy, i-th group of Q is taken_i=10 QPSK modulation symbols, in i-th subframe group In N_iIndividual subframe is transmitted, such as the 4* (i-1) during i-th subframe group is 100 subframes～4*i Individual subframe, i=1,2 ... 25, wherein, in each subframe in this subframe group, it is repeated below step transmission；

By this Q_i=10 QPSK modulation symbols are mapped to the single carrier frequency division multiplexing of L carrying data (SC-FDMA) or OFDM (Orthogonal Frequency Division Multiplex, OFDM) on symbol；Wherein, i-th modulation symbol q_i reflects after the frequency domain spread spectrum of a length of Nsc It is mapped on the SC-FDMA of i-th carrying data or Nsc subcarrier of OFDM symbol, i.e. i-th Permanent envelope zero autocorrelation sequence with circular shift information of modulation symbol q_i and corresponding a length of Nsc (Const Amplitude Zero Auto-Corelation, i.e. CAZAC sequence) obtains a length of Nsc after being multiplied Sequence, be mapped on Nsc subcarrier of the i-th carrying SC-FDMA of data or OFDM symbol, For the present embodiment, based on PUCCH format2 structure, frequency domain only accounts for 1RB, Nsc=12, conventional CP Under lower and extension CP, L=10, the numbered #0 in each time slot in Fig. 3 under i.e. conventional CP, 2,3,4, The symbol of 6 is the symbol of carrying data, the numbered #0 in each time slot in Fig. 4 under extension CP, 1,2, 4, the symbol of 5 is the symbol of carrying data；Concrete data spread spectrum and mapping mode can refer to prior art The transmission means of PUCCH format2, is not repeated herein；

Each symbol for transmitting pilot tone is produced the CAZAC sequence of a length of Nsc as at this symbol The reference signal sequence of upper transmission, particularly as follows: produce pilot tone basic sequence, in each time slot respectively through The time domain spread spectrum of a length of W and cyclic shift, the most in each time slot with the orthogonal sequence phase of a length of W Take advantage of and be multiplied (i.e. with corresponding cyclically shifted sequences on each carrying pilot tone SC-FDMA/OFDM symbol It is multiplied with the CAZAC sequence (with cyclic shift) of corresponding a length of Nsc) after, it is mapped to one The SC-FDMA/OFDM of W carrying frequency pilot sign (reference signal) in each time slot in individual subframe On symbol, wherein, the corresponding subcarrier of each symbol in the reference signal sequence of a length of Nsc；Right In the present embodiment, based on PUCCH format2 structure, under conventional CP, time each in W=2, i.e. Fig. 3 Numbered #1 in gap, the symbol of 5 are the symbol of carrying pilot tone, under extension CP, in W=1, i.e. Fig. 4 The symbol of the numbered #3 in each time slot is the symbol of carrying pilot tone；Concrete pilot tone spread spectrum and mapping mode The transmission means of prior art PUCCH format2 can be referred to, be not repeated herein；

PUCCH format 2 corresponding to this subframe, format 2a or format 2b channel resource send out Serve the signal after stating mapping.

Receiving terminal:

Step one: receive

Q is received in each subframe according to the inverse process of above-mentioned transmitting terminal (in step 3)_i=10 QPSK Modulation symbol and pilot tone；

QPSK modulation symbol in every N=4 subframe is merged (it is specifically as follows relevant merging, Such as take weighted average), obtain one group of Q after the merging that every N=4 subframe is corresponding_i=10 QPSK adjust Symbol processed；Obtain multi-subframe integrated channel estimation value: obtain based on the pilot tone in this subframe in each subframe The channel estimation value of this subframe, merges channel estimation value in every N=4 subframe and (is specifically as follows phase Dry merging, such as, take weighted average), obtain the joint channel estimation value that every N=4 subframe is corresponding, or, In each subframe the pilot tone received in this subframe is removed sequence information (to be specifically as follows according to transmitting terminal Produce the process of pilot tone, be circulated displacement, time domain orthogonal spread spectrum based on pilot tone basic sequence, obtain transmitting terminal The pilot frequency sequence sent, the pilot frequency sequence that the pilot frequency sequence received is sent divided by transmitting terminal, removed The pilot frequency sequence of sequence information), the pilot tone removing sequence information in every N=4 subframe is merged (tool Body can be relevant merging, such as, take weighted average), obtain every N=4 subframe based on the pilot tone after merging Joint channel estimation value, or, obtain pilot tone based on the pilot tone received in this subframe in each subframe Channel estimation value, merges the pilot channel estimation values in every N=4 subframe and (is specifically as follows relevant Merge, such as, take weighted average), obtain every N=4 subframe based on the pilot channel estimation values after merging Joint channel estimation value；Use this joint channel estimation value that the QPSK modulation symbol after corresponding merging is entered Row channel compensation, obtains one group of Q after the channel compensation that these 4 subframes are corresponding_i=10 QPSK modulation symbols Number；Above-mentioned Behavior equivalence is for be divided into M=100 subframeGroup, presses in each subframe group The Q after channel compensation is obtained according to above-mentioned steps_i=10 QPSK modulation symbols, specifically include:

A) each by the 1st～4 subframe (i.e. the 1st subframe group, comprise N1=N=4 subframe) The Q received in subframe_i=10 QPSK modulation symbols merge, and obtain the 1st～4 in the manner described above The joint channel estimation value that individual subframe is corresponding, the QPSK modulation symbol after using joint channel estimation value to be combined Number carry out channel compensation, obtain the Q after the 1st group of channel compensation₁=10 QPSK modulation symbols；

B) each by the 5th～8 subframe (i.e. the 2nd subframe group, comprise N2=N=4 subframe) The Q received in subframe_i=10 QPSK modulation symbols merge, and obtain the 5th～8 in the manner described above The joint channel estimation value that individual subframe is corresponding, the QPSK modulation symbol after using joint channel estimation value to be combined Number carry out channel compensation, obtain the Q after the 2nd group of channel compensation₂=10 QPSK modulation symbols；

C) by that analogy, by 4* (i-1)～4*i subframe, (i.e. i-th subframe group, comprises Ni=N=4 Individual subframe) in each subframe in the Q that receives_i=10 QPSK modulation symbols merge, and according to Aforesaid way obtains 4* (i-1)～joint channel estimation value corresponding to 4*i subframe, uses combined channel QPSK modulation symbol after estimated value is combined carries out channel compensation, obtains i-th group of Q_i=10 QPSK Modulation symbol, i=1,2 ... 25；

If it should be noted that use the bit groupings mode described in method one, above-mentioned steps a), b), C) also include the Q after channel compensation in_i=10 QPSK modulation symbols carry out QPSK demodulation, are solved 20 bits of encoded information after tune are if using the packet of modulation symbols described in method two, the most permissible Do not carry out QPSK demodulation, demodulate together after multiple subframe group data cascade；

Step 2: cascade

When using the bit groupings mode described in said method one:

Above-mentioned steps one is obtainedCoding information after group demodulation cascades, and obtains length For sequence after the coding of S=500 bit；

When using the packet of modulation symbols mode described in said method two:

Above-mentioned steps one is obtainedQPSK modulation symbol after group channel compensation carries out level Connection, obtains the QPSK modulation symbol sequence of a length of 250；

The QPSK modulation symbol sequence of a length of 250 is carried out QPSK demodulation, obtains a length of S=500 Sequence after the coding of bit；

Step 3: channel decoding

Sequence after the coding of a length of S=500 bit obtained in step 2 is carried out solve rate-matched and Turbo decoding (or convolutional code decoding), obtains sequence after the decoding of a length of K=72 bit, the most former Transmission block；

In above-described embodiment, under extension CP, a subframe carries data and the symbol of carrying pilot tone Distribution is as shown in Figure 4.

Embodiment 2: the size assuming 1 TB is K=72 bit, transmits in M=450 subframe, Every N=4 subframe one group carries out multi-subframe integrated channel estimation, carries out based on PUCCH format1b structure Transmission, i.e. uses QPSK modulation, can transmit C=2 bits of encoded information (1 QPSK in each subframe Modulation symbol), take 1 PRB and be transmitted, transmission structure as it is shown in figure 5, concrete transmitting procedure such as Under:

Transmitting terminal:

Step one: coding

The transmission block of a length of K=72 bit is through turbo coding (or convolutional encoding) and rate-matched After, obtain lengthSequence after bits of encoded.

Step 2: packet

Method one: bit information is grouped

Sequence after coding is divided intoGroup, often group comprises K_iInformation after=2 bits of encoded；Such as 1st～2 bits are first group, and the 3rd～4 bits are second group, by that analogy, and 2* (i-1)+1～2*i ratio Specially for i-th group, i=1,2 ... 113；

2 bit informations in often group are carried out QPSK modulation, group often obtains Q_i=1 QPSK modulation Symbol；

Method two: modulation symbol is grouped

Sequence after the coding of above-mentioned a length of S=226 bit is carried out QPSK modulation, obtains 113 QPSK Modulation symbol；

113 QPSK modulation symbols are divided intoGroup, often group comprises Q_i=1 QPSK adjusts Symbol processed；Such as the 1st QPSK modulation symbol is first group, and the 2nd QPSK modulation symbol is second Group, by that analogy, i-th QPSK modulation symbol is i-th group, i=1,2 ... 113；

Step 3: transmission

Take one group of Q successively_i=1 QPSK modulation symbol, transmits in N=4 subframe；

Specifically include: take first group of Q₁=1 QPSK modulation symbol, the N in the 1st subframe group₁ Transmitting in individual subframe, such as, the 1st subframe group is the 1st～4 subframe in 450 subframes, N₁=N=4, Wherein, in each subframe in this subframe group, it is repeated below step transmission；Then, second group of Q is taken₂=1 Individual QPSK modulation symbol, the N in the 2nd subframe group₂Individual subframe is transmitted, such as the 2nd subframe Group is the 5th～8 subframe in 450 subframes, N₂=N=4, wherein, the every height in this subframe group In frame, it is repeated below step transmission；By that analogy, i-th group of Q is taken_i=1 QPSK modulation symbol, N in i subframe group_iIndividual subframe is transmitted, such as the 4* (i-1) during i-th subframe group is 450 subframes ～4*i subframe, i=1,2 ... 112, wherein, in each subframe in this subframe group, it is repeated below step and passes Defeated；In last subframe group, only comprise MOD (450,4)=2 subframe, i.e. take the 113rd group of Q₁₁₃=1 Individual QPSK modulation symbol, the N in the 113rd subframe group₁₁₃Individual subframe is transmitted, such as the 113rd Subframe group is the 449th～450 subframe in 450 subframes, N₁₁₃=MOD (450,4)=2), wherein, In each subframe in this subframe group, it is repeated below step transmission；

By this Q_i=1 QPSK modulation symbol is mapped to the SC-FDMA/OFDM symbol of L carrying data On number；Wherein, this 1 QPSK modulation symbol is through the frequency domain spread spectrum of a length of Nsc and a length ofTime domain spread spectrum after be mapped to the carrying data of the 1st time slotIndividual SC-FDMA/OFDM On Nsc subcarrier of symbol, through the frequency domain spread spectrum of a length of Nsc and a length ofTime domain The carrying data of the 2nd time slot it are mapped to after spread spectrumThe Nsc of individual SC-FDMA/OFDM symbol On individual subcarrier, i.e. this 1 modulation symbol is with a length ofTime domain orthogonal sequence be multiplied, obtainEach modulation symbol in individual modulation symbol again with the CAZAC sequence phase of corresponding a length of Nsc Take advantage of, be mapped on Nsc subcarrier of the corresponding SC-FDMA/OFDM symbol in first time slot, should 1 modulation symbol is with a length ofTime domain orthogonal sequence be multiplied, obtainIn individual modulation symbol Each modulation symbol again with the CAZAC sequence (with circular shift information) of corresponding a length of Nsc It is multiplied, be mapped on Nsc subcarrier of the corresponding SC-FDMA/OFDM symbol in second time slot (on State spreading step can also first frequency domain spread spectrum time domain again spread, the most variable)；For the present embodiment, based on PUCCH format1b structure, frequency domain only takes up 1 RB transmission, i.e. Nsc=12, when using routine (normal) (last symbol reserved transmission detection reference signal (Sounding is not supported during mode Reference Signal, SRS)), L=8, the numbered #0 in each time slot in Fig. 5 under i.e. conventional CP, 1, the symbol of 5,6 is the symbol of carrying data, the numbered #0 in each time slot in Fig. 6 under extension CP, 1, the symbol of 4,5 is the symbol of carrying data, (last when using truncate (shortened) mode One symbol reserved transmission SRS), L=7, the numbered #0 in first time slot in Fig. 7 under i.e. conventional CP, 1,5,6 symbol and the symbol that symbol is carrying data that second time-gap number is #0,1,5, expand The symbol of numbered #0,1,4,5 in first time slot and second time slot in Fig. 8 under exhibition CP In the symbol of numbered #0,1,4 be the symbol of carrying data；Concrete data spread spectrum and mapping mode can refer to The transmission means of prior art PUCCH format1b, is not repeated herein；

Each symbol for transmitting pilot tone is produced the CAZAC sequence of a length of Nsc as at this symbol The reference signal sequence of upper transmission, particularly as follows: produce pilot tone basic sequence, in each time slot respectively through The time domain spread spectrum of a length of W and the frequency domain spread spectrum (i.e. cyclic shift) of a length of Nsc, i.e. when each After orthogonal sequence with a length of W is multiplied in gap, obtains W and arrange the sequence of a length of Nsc, each length It is multiplied with the CAZAC sequence (with cyclic shift) of corresponding a length of Nsc for the sequence of Nsc, W carrying pilot tone (reference signal) being mapped in each time slot in a subframe On SC-FDMA/OFDM symbol, wherein, each symbol pair in the reference signal sequence of a length of Nsc Answer a subcarrier；For the present embodiment, based on PUCCH format1b structure, under conventional CP, W=3, In i.e. Fig. 5 and Fig. 7, the symbol of numbered #2,3,4 in each time slot is the symbol of carrying pilot tone, extension Under CP, in W=2, i.e. Fig. 6 and Fig. 8, the numbered #2 in each time slot, the symbol of 3 are carrying pilot tone Symbol；Concrete pilot tone spread spectrum and mapping mode can refer to the transmission means of prior art PUCCH format1b, It is not repeated herein；

On the PUCCH format 1 corresponding to this subframe, format 1a or format 1b channel resource Send the signal after above-mentioned mapping.

Receiving terminal:

Step one: receive

Q is received in each subframe according to the inverse process of above-mentioned transmitting terminal (in step 3)_i=1 QPSK Modulation symbol and pilot tone；

QPSK modulation symbol in every N=4 subframe is merged (it is specifically as follows relevant merging, Such as take weighted average), obtain one group of Q after the merging that every N=4 subframe is corresponding_i=1 QPSK modulation Symbol, wherein, exists and only comprises 2 subframes in a subframe group, now, enters just for these 2 subframes Row is corresponding to be merged；Obtaining multi-subframe integrated channel estimation value, concrete mode is with embodiment one, unique district It is not to exist in a subframe group and only comprises 2 subframes, now, carry out accordingly just for these 2 subframes Merging, be not repeated herein；Use this joint channel estimation value to the QPSK modulation symbol after corresponding merging Number carry out channel compensation, obtain one group of Q after the channel compensation that these 4 subframes are corresponding_i=1 QPSK adjusts Symbol processed；Above-mentioned Behavior equivalence is for be divided into M=450 subframeGroup, in each subframe group In obtain the Q after channel compensation according to above-mentioned steps_i=1 QPSK modulation symbol；Specifically include:

A) by the 1st～4 subframe, (i.e. the 1st subframe group, comprises N₁=N=4 subframe) in each The Q received in subframe₁=1 QPSK modulation symbol merges, and obtains the 1st～4 in the manner described above The joint channel estimation value that individual subframe is corresponding, the QPSK modulation symbol after using joint channel estimation value to be combined Number carry out channel compensation, obtain the Q after the 1st group of channel compensation₁=1 QPSK modulation symbol；

B) by the 5th～8 subframe, (i.e. the 2nd subframe group, comprises N₂=N=4 subframe) in each The Q received in subframe₂=1 QPSK modulation symbol merges, and obtains the 5th～8 in the manner described above The joint channel estimation value that individual subframe is corresponding, the QPSK modulation symbol after using joint channel estimation value to be combined Number carry out channel compensation, obtain the Q after the 2nd group of channel compensation₂=1 QPSK modulation symbol；

C) by that analogy, by 4* (i-1)～4*i subframe, (i.e. i-th subframe group, comprises N_i=N=4 Individual subframe) in each subframe in the Q that receives_i=1 QPSK modulation symbol merges, and according to Aforesaid way obtains 4* (i-1)～joint channel estimation value corresponding to 4*i subframe, uses combined channel QPSK modulation symbol after estimated value is combined carries out channel compensation, obtains i-th group of Q_i=1 QPSK Modulation symbol, i=1,2 ... 112；

D) by the 112nd～113 subframe, (i.e. the 113rd subframe group, comprises N₁₁₃=MOD (450,4)=2 Subframe) in each subframe in the Q that receives₁₁₃=1 QPSK modulation symbol merges, and according to upper The mode of stating obtains the 112nd～113 joint channel estimation value corresponding to subframe, uses joint channel estimation value pair QPSK modulation symbol after merging carries out channel compensation, obtains the 113rd group of Q₁₁₃=1 QPSK modulation symbol Number；

If it should be noted that use the bit groupings mode described in method one, above-mentioned steps a), b), C), d) in also include the Q after channel compensation_i=1 QPSK modulation symbol carries out QPSK demodulation, obtains 2 bits of encoded information after demodulation, if using the packet of modulation symbols mode described in method two, herein QPSK demodulation can not be carried out, demodulate together after multiple subframe group data cascade.

Step 2: cascade

When using the bit groupings mode described in method one:

Above-mentioned steps one is obtainedCoding information after group demodulation cascades, and is grown Degree is sequence after the coding of S=226 bit；

When using the packet of modulation symbols mode described in method two:

Above-mentioned steps one is obtainedQPSK modulation symbol after group channel compensation carries out level Connection, obtains the QPSK modulation symbol sequence of a length of 113；

The QPSK modulation symbol sequence of a length of 113 is carried out QPSK demodulation, obtains a length of S=226 Sequence after the coding of bit；

Step 3: channel decoding

Sequence after the coding of a length of S=226 bit obtained in step 2 is carried out solve rate-matched and Turbo decoding (or convolutional code decoding), obtains sequence after the decoding of a length of K=72 bit, the most former Transmission block；

In above-described embodiment 2, under extension CP, a subframe carries data and the symbol of carrying pilot tone Distribution is as shown in Figure 6；When last symbol remains for SRS transmission in advance (shortened structure), Conventional CP and extension CP carries the symbol of data and carrying pilot tone in a subframe and distributes respectively such as Fig. 7 Shown in Fig. 8.

Embodiment 3: the size assuming 1 TB is K=72 bit, transmits, often in M=80 subframe N=8 subframe one group carries out the estimation of many sub-frame chan-nel, is transmitted, i.e. based on PUCCH format3 structure Use QPSK modulation, each subframe can be transmitted (24 the QPSK modulation of C=48 bits of encoded information Symbol), take 1 PRB and be transmitted, transmission structure is as it is shown in figure 9, concrete transmitting procedure is as follows:

Transmitting terminal:

Step one: coding

Step 2: packet

Method one: bit is grouped

Sequence after coding is divided intoGroup, often group comprises K_iInformation after=48 bits of encoded, such as 1st～48 bits are first group, and the 49th～96 bits are second group, by that analogy, and 48* (i-1)+1～48*i Bit is i-th group, i=1,2 ... 10；

48 bit informations in often group are carried out QPSK modulation, group often obtains Q_i=24 QPSK adjust Symbol processed；

Method two: modulation symbol is grouped

Sequence after the coding of above-mentioned a length of S=480 bit is carried out QPSK modulation, obtains 240 QPSK Modulation symbol；

240 QPSK modulation symbols are divided intoGroup, often group comprises Q_i=24 QPSK adjust Symbol processed；Such as the 1st～24 QPSK modulation symbol is first group, the 25th～48 QPSK modulation symbol Number being second group, by that analogy, 24* (i-1)+1～24*i QPSK modulation symbol are i-th group, I=1,2 ... 10；

Step 3: transmission

Take one group of Q successively_i=24 QPSK modulation symbols, transmit in N=8 subframe, specifically include:

Take first group of Q₁=24 QPSK modulation symbols, the N in the 1st subframe group₁Individual subframe passes Defeated, such as the 1st subframe group is the 1st～8 subframe in 80 subframes, N₁=N=8, wherein, at this In each subframe in subframe group, it is repeated below step transmission；Then, second group of Q is taken₂=24 QPSK Modulation symbol, the N in the 2nd subframe group₂Transmitting in individual subframe, such as the 2nd subframe group is 80 The the 9th～16 subframe in subframe, N₂=N=8, wherein, in each subframe in this subframe group, repeats Following steps are transmitted；By that analogy, i-th group of Q is taken_i=24 QPSK modulation symbols, in i-th subframe N in group_iIndividual subframe is transmitted, such as the 8* (i-1) during i-th subframe group is 80 subframes～8*i Individual subframe, i=1,2 ... 10, wherein, in each subframe in this subframe group, it is repeated below step transmission.

By this Q_i=24 QPSK modulation symbols are mapped to the SC-FDMA/OFDM symbol of L carrying data On number；Wherein, by 12 the QPSK modulation symbols (the most front 12 in 24 QPSK modulation symbols Individual) through a length ofTime domain spread spectrum after be mapped to the carrying data of the 1st time slotIndividual On Nsc subcarrier of SC-FDMA/OFDM symbol, i.e. these 12 modulation symbols are with a length of Time domain orthogonal sequence be multiplied, obtainThe individual modulation symbol sequence of a length of 12 is respectively mapped to On Nsc subcarrier of the corresponding SC-FDMA/OFDM symbol in one time slot, by 24 QPSK 12 QPSK modulation symbols of remaining in modulation symbol (latter 12) are through a length of's The carrying data of the 2nd time slot it are mapped to after time domain spread spectrumIndividual SC-FDMA/OFDM symbol On Nsc subcarrier, i.e. these 12 modulation symbols are with a length ofTime domain orthogonal sequence be multiplied, ArriveIt is corresponding that the individual modulation symbol sequence of a length of 12 is respectively mapped in second time slot On Nsc subcarrier of SC-FDMA/OFDM symbol；For the present embodiment, based on PUCCH format3 Structure, frequency domain only takes up 1 RB transmission, i.e. Nsc=12, (does not props up when using normal mode Hold last symbol reserved transmission SRS), L=10, the volume in each time slot in Fig. 9 under i.e. conventional CP Number for the symbol that the symbol of #0,2,3,4,6 is carrying data, each time slot in Figure 10 under extension CP In the symbol that the symbol of numbered #0,1,2,4,5 is carrying data, when using shortened mode Time (last symbol reserved transmission SRS), L=9, first time slot in Figure 11 under i.e. conventional CP In the symbol of numbered #0,2,3,4,6 and symbol that second time-gap number is #0,2,3,4 For carrying the symbol of data, numbered #0,1,2,4,5 in first time slot in Figure 12 under extension CP Symbol and second time slot in the symbol of numbered #0,1,2,4 be the symbol of carrying data；Tool Volume data spread spectrum and mapping mode can refer to the transmission means of prior art PUCCH format3, do not go to live in the household of one's in-laws on getting married at this State.

Each symbol for transmitting pilot tone is produced the CAZAC sequence of a length of Nsc as at this symbol The reference signal sequence of upper transmission, specifically includes: produce pilot tone basic sequence, the most respectively warp Cross time domain spread spectrum and the cyclic shift of a length of W, the most in each time slot with the orthogonal sequence of a length of W It is multiplied and CAZAC sequence corresponding with the SC-FDMA/OFDM symbol of carrying pilot tone respectively is (with following Ring shift information) it is multiplied, the sequence obtaining the W a length of Nsc of row is respectively mapped to the W in each time slot On the SC-FDMA/OFDM symbol of individual carrying pilot tone (reference signal), wherein, the ginseng of a length of Nsc Examine the corresponding subcarrier of each symbol in signal sequence；For the present embodiment, based on PUCCH Format3 structure, under conventional CP, the numbered #1 in each time slot in W=2, i.e. Fig. 9 and Figure 11,5 Symbol be carrying pilot tone symbol, extension CP under, in W=2, i.e. Figure 10 and Figure 12 in each time slot The symbol that the symbol of numbered #3 is carrying pilot tone；Concrete pilot tone spread spectrum and mapping mode can refer to existing skill The transmission means of art PUCCH format3, is not repeated herein；

Signal after sending above-mentioned mapping on PUCCH format 3 channel resource corresponding to this subframe.

Receiving terminal:

Step one: receive

Q is received in each subframe according to the inverse process of above-mentioned transmitting terminal (in step 3)_i=24 QPSK Modulation symbol and pilot tone；

QPSK modulation symbol in every N=8 subframe is merged, is specifically as follows relevant merging, Such as take weighted average, obtain one group of Q after the merging that every N=8 subframe is corresponding_i=24 QPSK modulation Symbol；Obtaining multi-subframe integrated channel estimation value, concrete mode, with embodiment one, only difference is that this Place N=8, is not repeated herein；Use this joint channel estimation value to the QPSK modulation symbol after corresponding merging Number carry out channel compensation, obtain one group of Q after the channel compensation that these 8 subframes are corresponding_i=24 QPSK adjust Symbol processed；Above-mentioned Behavior equivalence is for be divided into M=80 subframeGroup, in each subframe group The Q after channel compensation is obtained according to above-mentioned steps_i=24 QPSK modulation symbols；Specifically include:

A) by the 1st～8 subframe, (i.e. the 1st subframe group, comprises N₁=N=8 subframe) in each The Q received in subframe₁=24 QPSK modulation symbols merge, and obtain in the manner described above The joint channel estimation value that 1～8 subframe is corresponding, the QPSK after using joint channel estimation value to be combined adjusts Symbol processed carries out channel compensation, obtains the Q after the 1st group of channel compensation₁=24 QPSK modulation symbols；

B) by the 9th～16 subframe, (i.e. the 2nd subframe group, comprises N₂=N=8 subframe) in each The Q received in subframe₂=24 QPSK modulation symbols merge, and obtain in the manner described above The joint channel estimation value that 9～16 subframes are corresponding, the QPSK after using joint channel estimation value to be combined Modulation symbol carries out channel compensation, obtains the Q after the 2nd group of channel compensation₂=24 QPSK modulation symbols；

C) by that analogy, by 8* (i-1)～8*i subframe, (i.e. i-th subframe group, comprises N_i=N=8 Individual subframe) in each subframe in the Q that receives_i=24 QPSK modulation symbols merge, and according to Aforesaid way obtains 8* (i-1)～joint channel estimation value corresponding to 8*i subframe, uses combined channel QPSK modulation symbol after estimated value is combined carries out channel compensation, obtains i-th group of Q_i=24 QPSK Modulation symbol, i=1,2 ... 10；

If it should be noted that use the bit groupings mode described in method one, above-mentioned steps a), b), C) also include the Q after channel compensation in_i=24 QPSK modulation symbols carry out QPSK demodulation, are solved 48 bits of encoded information after tune, if using the packet of modulation symbols mode described in method two, herein QPSK demodulation can not be carried out, demodulate together after multiple subframe group data cascade.

Step 2: cascade

When using the bit groupings mode described in method one:

Above-mentioned steps one is obtainedCoding information after group demodulation cascades, and obtains length For sequence after the coding of S=480 bit；

When using the packet of modulation symbols mode described in method two:

Above-mentioned steps one is obtainedQPSK modulation symbol after group channel compensation cascades, Obtain the QPSK modulation symbol sequence of a length of 240；

The QPSK modulation symbol sequence of a length of 240 is carried out QPSK demodulation, obtains a length of S=480 Sequence after the coding of bit；

Step 3: channel decoding

Sequence after the coding of a length of S=480 bit obtained in step 2 is carried out solve rate-matched and Turbo decoding (or convolutional code decoding), obtains sequence after the decoding of a length of K=72 bit, the most former Transmission block；

In above-described embodiment 3, under extension CP, a subframe carries data and the symbol of carrying pilot tone Distribution is as shown in Figure 10；When last symbol remains for SRS transmission in advance (shortened structure), Conventional CP and extension CP carries the symbol of data and carrying pilot tone in a subframe and distributes respectively such as Figure 11 Shown in Figure 12.

With method that the invention described above embodiment provide relative equipment is described below.

See Figure 13, a kind of data transmission set that the embodiment of the present invention provides, including:

First module 11, for when described equipment is as transmitting terminal, needs to take according to current transmission block Total transmission subframe carry out being grouped the number of the subframe group obtained, described transmission block is carried out chnnel coding, Sequence after being encoded；

Second unit 12, sequence after the number according to described subframe group and described coding, obtain many groups Quadrature amplitude modulation qam symbol；

3rd unit 13, for being sent to receive by described many group qam symbols by the plurality of subframe group End, in any of which subframe group, each subframe repeats to transmit one group of qam symbol.

It is preferred that described second unit specifically for:

It is preferred that see Figure 14, when this equipment is as receiving terminal, this equipment also includes:

4th unit 21, for when described equipment is as receiving terminal, determines and is taking current transmission block Total transmission subframe carries out being grouped the quadrature amplitude modulation qam symbol that each subframe group obtained receives, wherein In arbitrary subframe group, each subframe repeats to transmit identical qam symbol；

5th unit 22, for the qam symbol received based on described each subframe group, determines transmitting terminal The number of the subframe group obtained it is grouped, to described according to total transmission subframe that described transmission block is taken Transmission block carries out sequence after the coding that chnnel coding obtains；

6th unit 23, for sequence after described coding is carried out channel decoding, obtains described transmission block.

It is to say, the data transmission set described in the embodiment of the present invention, i.e. there is transmitting terminal function and have again There is receiving terminal function.

See Figure 14, a kind of data transmission set that the embodiment of the present invention provides, including:

It is preferred that described Unit the 4th specifically for:

It is preferred that described Unit the 5th specifically for:

Data above transmission equipment can be the base station of network side can also be the subscriber equipment of end side.

Seeing Figure 15, at network side, a kind of data transmission set that the embodiment of the present invention provides includes:

Processor 500, for reading the program in memorizer 520, performs following process:

When described equipment is as transmitting terminal, the total transmission subframe taken is needed to enter according to current transmission block The number of the subframe group that row packet obtains, carries out chnnel coding to described transmission block, sequence after being encoded；

Sequence after number according to described subframe group and described coding, obtains organizing quadrature amplitude modulation QAM symbol more Number；

Control transceiver 510 to be sent to receive by described many group qam symbols by the plurality of subframe group End, in any of which subframe group, each subframe repeats to transmit one group of qam symbol.

It is preferred that sequence after described coding is carried out point by described processor 500 according to the number of described subframe group Group, obtains organizing sequence after coding more, obtains after after described many group codings, sequence carries out QAM modulation respectively Organize qam symbol more；Or, sequence after described coding is carried out QAM modulation, sequence after modulation is pressed Number according to described subframe group is grouped, and obtains organizing qam symbol more.

It is preferred that before described processor 500 carries out described QAM modulation, be additionally operable to: to described coding Rear sequence scrambles.

It is preferred that described processor 500 controls transceiver 510 when transmitting qam symbol in each subframe, Use a kind of Physical Uplink Control Channel PUCCH format, in the transmission corresponding to described PUCCH format Resource carries out qam symbol transmission.

It is preferred that see Figure 14, when this equipment is as receiving terminal, processor 500 is additionally operable to:

When described equipment is as receiving terminal, determine that the total transmission subframe taking current transmission block is carried out The quadrature amplitude modulation qam symbol that each subframe group that packet obtains receives, each in any of which subframe group Subframe repeats to transmit identical qam symbol；

The qam symbol received based on described each subframe group, determines that transmitting terminal is according to described transmission block The total transmission subframe taken carries out being grouped the number of the subframe group obtained, and described transmission block is carried out channel volume Sequence after the coding that code obtains；

Sequence after described coding is carried out channel decoding, obtains described transmission block.

It is to say, the data transmission set of the network side described in the embodiment of the present invention, i.e. there is transmitting terminal Function has again receiving terminal function.

Transceiver 510, for receiving under control of the processor 500 and sending data.

Wherein, in fig .15, bus architecture can include bus and the bridge of any number of interconnection, specifically The various circuit of the memorizer that the one or more processors represented by processor 500 and memorizer 520 represent Link together.Bus architecture can also be by such as ancillary equipment, manostat and management circuit or the like Other electrical chains various be connected together, these are all to it is known in the art, therefore, the most no longer to it It is described further.EBI provides interface.Transceiver 510 can be multiple element, i.e. includes sending out Send machine and transceiver, it is provided that for the unit communicated with other devices various over a transmission medium.Processor 500 Being responsible for bus architecture and common process, memorizer 520 can store processor 500 and perform operation Time the data that used.

Seeing Figure 16, in end side, a kind of data transmission set that the embodiment of the present invention provides includes:

Processor 600, for reading the program in memorizer 620, performs following process:

Obtain it is preferred that processor 600 carries out packet for the total transmission subframe taking current transmission block Arbitrary subframe group:

It is preferred that described processor 600 receives qam symbol in described each subframe group, and to described The qam symbol that each subframe group receives is demodulated, after obtaining the coding that described each subframe group is corresponding Sequence, cascades sequence after coding corresponding for described each subframe group, obtains transmitting terminal according to described biography The defeated piece of total transmission subframe taken carries out being grouped the number of the subframe group obtained, and carries out described transmission block Sequence after the coding that chnnel coding obtains；Or, receive qam symbol in described each subframe group, and The qam symbol cascade described each subframe group received, solves the qam symbol after cascade Adjust, obtain transmitting terminal and be grouped, according to total transmission subframe that described transmission block is taken, the subframe obtained The number of group, carries out sequence after the coding that chnnel coding obtains to described transmission block.

It is preferred that after described processor 600 carries out described demodulation, be additionally operable to: to sequence after described coding Descramble.

During it is preferred that described processor 600 receives qam symbol in each subframe, use a kind of physics Ascending control channel PUCCH format, carries out QAM at the transfer resource corresponding to described PUCCH format Symbol receives.

When this terminal side equipment is as transmitting terminal, processor 600 is additionally operable to:

The subframe group obtained according to current transmission block needs total transmission subframe of taking be grouped individual Number, carries out chnnel coding to described transmission block, sequence after being encoded；

Control transceiver 610 to be sent to receive by described many group qam symbols by the plurality of subframe group End, in any of which subframe group, each subframe repeats to transmit one group of qam symbol.

It is preferred that described processor 600 is according to sequence after the number of described subframe group and described coding, During to many group qam symbols, specifically for:

Transceiver 610, for receiving and sending data under the control of processor 600.

The data transmission set of end side that i.e. embodiment of the present invention provides i.e. has transmitting terminal function and has again Receiving terminal function.

Wherein, in figure 16, bus architecture can include bus and the bridge of any number of interconnection, specifically The various circuit of the memorizer that the one or more processors represented by processor 600 and memorizer 620 represent Link together.Bus architecture can also be by such as ancillary equipment, manostat and management circuit or the like Other electrical chains various be connected together, these are all to it is known in the art, therefore, the most no longer to it It is described further.EBI provides interface.Transceiver 610 can be multiple element, i.e. includes sending out Send machine and receiver, it is provided that for the unit communicated with other devices various over a transmission medium.For difference Subscriber equipment, user interface 630 can also is that can external in connect the interface needing equipment, setting of connection For including but not limited to keypad, display, speaker, mike, stick etc..

Processor 600 is responsible for bus architecture and common process, and memorizer 620 can store processor 600 data used when performing operation.

In sum, in the embodiment of the present invention, the coded bit that TB calculates according to the number of subframe group Number carry out chnnel coding and rate-matched, with ensure participate in many sub-frame chan-nel estimate same group of subframe in every Individual subframe is transmitted identical data message, the data transmission knot transmitted in M subframe by PUCCH Structure.Embodiments providing one is newly data transmission structure, estimates using multi-subframe integrated channel Time, the relevant merging of many sub-frame signals can be realized based on this transmission structure, improve at transmitting terminal and receiving terminal There is demodulation performance during frequency departure.

Those skilled in the art are it should be appreciated that embodiments of the invention can be provided as method, system or meter Calculation machine program product.Therefore, the present invention can use complete hardware embodiment, complete software implementation or knot The form of the embodiment in terms of conjunction software and hardware.And, the present invention can use and wherein wrap one or more Computer-usable storage medium containing computer usable program code (include but not limited to disk memory and Optical memory etc.) form of the upper computer program implemented.

The present invention is with reference to method, equipment (system) and computer program product according to embodiments of the present invention The flow chart of product and/or block diagram describe.It should be understood that can by computer program instructions flowchart and / or block diagram in each flow process and/or flow process in square frame and flow chart and/or block diagram and/ Or the combination of square frame.These computer program instructions can be provided to general purpose computer, special-purpose computer, embedding The processor of formula datatron or other programmable data processing device is to produce a machine so that by calculating The instruction that the processor of machine or other programmable data processing device performs produces for realizing at flow chart one The device of the function specified in individual flow process or multiple flow process and/or one square frame of block diagram or multiple square frame.

These computer program instructions may be alternatively stored in and computer or the process of other programmable datas can be guided to set In the standby computer-readable memory worked in a specific way so that be stored in this computer-readable memory Instruction produce and include the manufacture of command device, this command device realizes in one flow process or multiple of flow chart The function specified in flow process and/or one square frame of block diagram or multiple square frame.

These computer program instructions also can be loaded in computer or other programmable data processing device, makes Sequence of operations step must be performed to produce computer implemented place on computer or other programmable devices Reason, thus the instruction performed on computer or other programmable devices provides for realizing flow chart one The step of the function specified in flow process or multiple flow process and/or one square frame of block diagram or multiple square frame.

Obviously, those skilled in the art can carry out various change and modification without deviating from this to the present invention Bright spirit and scope.So, if the present invention these amendment and modification belong to the claims in the present invention and Within the scope of its equivalent technologies, then the present invention is also intended to comprise these change and modification.

Claims

1. a data transmission method, it is characterised in that the method includes:

Method the most according to claim 1, it is characterised in that the number of described subframe group isAfter described coding, sequence is a length of:Bit, wherein, M is described Transmission block needs the total transmission number of sub frames taken, and N is the number of sub frames participating in estimating across sub-frame chan-nel, and C is The bit number of each subframe maximum carrying.

Method the most according to claim 1, it is characterised in that described transmitting terminal is according to described subframe Sequence after the number of group and described coding, obtains organizing qam symbol more, including:

Method the most according to claim 3, it is characterised in that before carrying out described QAM modulation, The method also includes: scramble sequence after described coding.

Method the most according to claim 1, it is characterised in that transmission QAM symbol in each subframe Number time, use a kind of Physical Uplink Control Channel PUCCH format, corresponding to described PUCCH format Transfer resource carry out qam symbol transmission.

6. a data transmission method, it is characterised in that the method includes:

Method the most according to claim 6, it is characterised in that described receiving terminal determines to currently Total transmission subframe that transmission block takies carries out being grouped the qam symbol that each subframe group obtained receives, Including:

Method the most according to claim 6, it is characterised in that described receiving terminal is based on described each The qam symbol that subframe group receives, determines that transmitting terminal is according to total transmission taking described transmission block Frame carries out being grouped the number of the subframe group obtained, after described transmission block is carried out the coding that chnnel coding obtains Sequence, including:

Method the most according to claim 8, it is characterised in that after carrying out described demodulation, the party Method also includes: descramble sequence after described coding.

Method the most according to claim 6, it is characterised in that receive QAM in each subframe During symbol, using a kind of Physical Uplink Control Channel PUCCH format, in described PUCCH format, institute is right The transfer resource answered carries out qam symbol reception.

11. methods according to claim 6, it is characterised in that the number of described subframe group is After described coding, sequence is a length of:Bit, wherein, M is that described transmission block needs Total transmission number of sub frames to be taken, N is the number of sub frames participating in estimating across sub-frame chan-nel, and C is each subframe The bit number of maximum carrying.

12. 1 kinds of data transmission sets, it is characterised in that including:

13. equipment according to claim 12, it is characterised in that the number of described subframe group isAfter described coding, sequence is a length of:Bit, wherein, M is described Transmission block needs the total transmission number of sub frames taken, and N is the number of sub frames participating in estimating across sub-frame chan-nel, and C is The bit number of each subframe maximum carrying.

14. equipment according to claim 12, it is characterised in that described second unit specifically for:

15. equipment according to claim 14, it is characterised in that described second unit carries out described Before QAM modulation, it is additionally operable to: sequence after described coding is scrambled.

16. equipment according to claim 12, it is characterised in that described Unit the 3rd is at every height When frame transmits qam symbol, use a kind of Physical Uplink Control Channel PUCCH format, described Transfer resource corresponding to PUCCH format carries out qam symbol transmission.

17. according to the equipment described in the arbitrary claim of claim 12-16, it is characterised in that also includes:

18. 1 kinds of data transmission sets, it is characterised in that including:

19. equipment according to claim 18, it is characterised in that described Unit the 4th specifically for:

20. equipment according to claim 18, it is characterised in that described Unit the 5th specifically for:

21. equipment according to claim 20, it is characterised in that described Unit the 5th carries out described After demodulation, it is additionally operable to: sequence after described coding is descrambled.

22. equipment according to claim 18, it is characterised in that described Unit the 4th is at every height When frame receives qam symbol, use a kind of Physical Uplink Control Channel PUCCH format, described Transfer resource corresponding to PUCCH format carries out qam symbol reception.

23. equipment according to claim 18, it is characterised in that the number of described subframe group isAfter described coding, sequence is a length of:Bit, wherein, M is described Transmission block needs the total transmission number of sub frames taken, and N is the number of sub frames participating in estimating across sub-frame chan-nel, and C is The bit number of each subframe maximum carrying.