WO2016070699A1

WO2016070699A1 - Data sending method, reception method and device

Info

Publication number: WO2016070699A1
Application number: PCT/CN2015/091815
Authority: WO
Inventors: 高雪娟; 邢艳萍; 徐伟杰; 沈祖康; 潘学明
Original assignee: 电信科学技术研究院
Priority date: 2014-11-06
Filing date: 2015-10-13
Publication date: 2016-05-12
Also published as: CN105634665A; CN105634665B

Abstract

Disclosed are a data sending method, reception method and device. The data sending method comprises: channel-coding a transmission information block having a length of K bits to obtain a coded sequence having a length of S bits; transmitting the coded sequence having a length of S bits on a corresponding channel resource in M sub-frames, M ≥ 1; transmitting Qi QAM symbols {q_1, q_2, …, q_Qi} in an i-th sub-frame of the M sub-frames, the Qi QAM symbols being obtained from Ki bits in the coded sequence having a length of S bits, 1 ≤ i ≤ M; each of the QAM symbols q_j, 1 ≤ j ≤ Qi, is transmitted on at least one symbol for data transmission of the i-th sub-frame, the signal transmitted on symbols for data transmission being product of a CAZAC sequence and the QAM symbol q_j; and transmitting a pilot frequency signal on at least one symbol of the i-th sub-frame, the pilot frequency being the CAZAC sequence.

Description

Data transmitting method, receiving method and device

The present application claims the priority of the Chinese Patent Application, filed on Nov. 6, 2014, the entire disclosure of in.

Technical field

The present application relates to the field of communications, and in particular, to a data transmitting method, receiving method and apparatus.

Background technique

The Internet of Things technology is in the ascendant, and it is necessary to support the Machine Type Communication (MTC) function in the third generation mobile communication system and its Long Term Evolution (LTE). An MTC device (MTC terminal) may have some of the characteristics of a variety of machine-to-machine (M2M, Machine to Machine, or machine-to-machine) communication characteristics, such as low mobility, small amount of transmitted data, and communication delay. Insensitive to the characteristics of very low power consumption, the following examples illustrate some of the features currently recognized for MTC communication:

- the MTC terminal has low mobility;

- The time for data transmission between the MTC terminal and the network side is controllable; that is, the MTC terminal can only access within a specified time period of the network;

- The data transmission performed by the MTC terminal and the network side does not require high real-time data transmission, that is, it has time tolerance;

- The MTC terminal is energy limited and requires very low power consumption;

- only small amount of information transmission between the MTC terminal and the network side;

- The MTC terminal can be managed in groups;

An actual MTC terminal may have one or more of the characteristics described above.

As a new communication concept, M2M communication aims to combine various different types of communication technologies, such as machine-to-machine communication, machine control communication, human-computer interaction communication, and mobile interconnection communication, thereby promoting social production and life. The development of the way. It is expected that the business of human-to-human communication in the future may only account for 1/3 of the entire terminal market, and a larger amount of communication is the inter-machine (small bandwidth system) communication service.

Current mobile communication networks are designed for communication between people, such as the determination of network capacity. If you want to use mobile communication networks to support small-bandwidth system communication, you need to optimize the mechanism of the mobile communication system according to the characteristics of small-bandwidth system communication, so that when traditional human-to-human communication is not affected or less affected. To better achieve small bandwidth system communication.

In the existing M2M network based on Global System for Mobile Communications (GSM) technology, operators find terminals that work in some scenarios, such as terminals working in basements, shopping malls, or building corners, due to wireless signals. The signal is greatly occluded, and the signal is greatly attenuated. The terminal cannot communicate with the network, and the deep coverage of the network for these scenarios will greatly increase the network construction cost. The operator has been tested and believes that it is necessary to enhance the existing coverage of GSM by 15 dB to meet the coverage requirements of the above scenarios. Subsequent LTE technology will replace GSM for M2M transmission. Since LTE and GSM coverage are basically the same, LTE technology also needs to enhance 15dB coverage to meet the M2M transmission requirements in the above scenario.

In order to solve the above problem about M2M transmission coverage, a relatively straightforward and feasible method is to repeatedly transmit existing physical channels or the like, and theoretically, it is possible to perform tens to hundreds of repetitions on existing physical channels. The transmission achieves a 15 dB coverage gain. For example, the Physical Downlink Shared CHannel (PDSCH) needs to be repeated about tens of times to achieve 15 dB coverage enhancement. For the Physical Uplink Shared CHannel (PUSCH), it needs to be repeated about 100 times. A 15dB coverage enhancement is achieved.

However, the method of using the repetition mechanism to implement coverage enhancement requires occupying more channel resources, reducing transmission efficiency and system spectrum efficiency, and greatly increasing terminal power consumption.

In view of the problems in the related art, no effective solution has been proposed yet.

Summary of the invention

For the problems in the related art, the present application provides a data transmitting method, a receiving method, and a device, which can improve transmission performance by designing a new transmission channel structure, thereby reducing the number of repeated transmissions, improving system spectrum efficiency, and saving power.

In order to achieve the above object, according to an aspect of the present application, a data sending method is provided, and the data sending method includes:

Channel coding the transmission information block of length K bits to obtain a coded sequence of length S bits;

Transmitting a coded sequence of length S bits on a corresponding channel resource in M subframes, where M≥1;

Transmitting Q QAM symbols {q_1, q_2, . . . , q_Qi} in the i-th subframe of the M subframes, and the Qi QAM symbols are obtained by Ki bits in the encoded sequence of length S bits, where 1≤ i ≤ M; each QAM symbol q_j, 1 ≤ j ≤ Qi, transmitted on at least one symbol for transmitting data of the i-th subframe, and the signal transmitted on the symbol for transmitting data is a CAZAC sequence and a QAM symbol The product of q_j;

A pilot signal is transmitted on at least one symbol of the i-th subframe, the pilot signal being a CAZAC sequence.

Optionally, the channel coding includes at least one of the following:

Turbo coding, convolutional coding, RM coding.

Optionally, the QAM symbol is obtained by using at least one of the following modulation modes, including:

BPSK, QPSK, 16QAM, 64QAM, 256QAM.

Optionally, before modulating the QAM symbol, the method includes:

Encoding the encoded bit sequence, wherein the encoded bit sequence is the encoded sequence of length S bits, or is in the encoded sequence of length S bits corresponding to the QAM symbol Ki bits.

Optionally, the Q QAM symbols {q_1, q_2, . . . , q_Qi} are transmitted in the i-th subframe of the M subframes, including:

Transmitting Qi=N1 QAM symbols in an i-th subframe of the M subframes, and each QAM symbol q_j is transmitted on one of N1 symbols for transmitting data in the i-th subframe, Among them, N1 is a preset parameter.

Optionally, each QAM symbol q_j, 1≤j≤Qi, is implemented by transmitting on at least one symbol for transmitting data of the i-th subframe:

Multiplying each QAM symbol q_j by a CAZAC sequence of length A to obtain a signal of length A, where A is a preset parameter;

The signal of length A is mapped onto A subcarriers on one of the N1 symbols for transmitting data in the i-th subframe.

Transmitting Qi=1 QAM symbols in an i-th subframe of the M subframes, where the QAM symbols are transmitted on N1 symbols for transmitting data in the i-th subframe, where N1 is a pre- Set parameters.

A QAM symbol q_j is multiplied by a CAZAC sequence of length A for each symbol used to transmit data in the first slot of the i-th subframe and is of length

Orthogonal sequence spread spectrum, resulting in a length of

Signal, where A is a preset parameter;

The length is

Signal is mapped to the first time slot of the i-th subframe

A subcarriers on the symbol used to transmit data;

The one QAM symbol q_j is multiplied by a CAZAC sequence of length A on a symbol for transmitting data in a second slot of the i-th subframe and is of length

Orthogonal sequence spread spectrum, resulting in a length of

Signal; for regular CP for extended CP if other

The length is

Signal is mapped to the second time slot of the i-th subframe

A subcarriers on the symbol used to transmit data.

The pilot signal is transmitted on the at least one symbol of the ith subframe, and the pilot signal is a CAZAC sequence, including:

Transmitting a pilot signal on the N2 symbols of the i-th subframe, where the pilot signal is a CAZAC sequence, where N2 is a preset parameter, and N1+N2 is equal to the total number of symbols in the i-th subframe; or

Transmitting a pilot signal on N2 symbols of the i-th subframe, the pilot signal is obtained by spreading each element in a CAZAC sequence by an orthogonal sequence of length N2/2, and N2 is preset The parameters are fixed, and N1+N2 is equal to the total number of symbols in the i-th subframe.

Optionally, the corresponding channel resource in the M subframes includes at least one of the following:

Physical uplink control channel format 1 (PUCCH format 1), physical uplink control channel format 1a (PUCCH format 1a), physical uplink control channel format 1b (PUCCH format 1b), physical uplink control channel format 2 (PUCCH format 2), physical uplink Control channel format 2a (PUCCH format 2a), physical uplink control channel format 2b (PUCCH format 2b) resources.

According to another aspect of the present application, a data receiving method is provided, the data receiving method comprising:

Receiving a signal on a corresponding channel resource in M subframes, obtaining an S-bit encoded sequence transmitted in M subframes, where M≥1;

Performing channel decoding on the S-bit encoded sequence to obtain a transmission information block of length K bits;

Obtaining Q QAM symbols {q_1, q_2, . . . , q_Qi} in the i-th subframe of the M subframes, and the Qi QAM symbols are obtained by Ki bits in the encoded sequence of length S bits, where 1≤ i ≤ M; each QAM symbol q_j, 1 ≤ j ≤ Qi, transmitted on at least one symbol for transmitting data of the i-th subframe, and the signal transmitted on the symbol for transmitting data is a CAZAC sequence and a QAM symbol The product of q_j;

A pilot signal is acquired on at least one symbol of the i-th subframe, and the pilot signal is a CAZAC sequence.

Optionally, the channel coding includes at least one of the following:

Turbo coding, convolutional coding, RM coding.

BPSK, QPSK, 16QAM, 64QAM, 256QAM.

Optionally, before performing channel decoding on the S-bit encoded sequence, the method includes:

Decoding the encoded bit sequence, wherein the encoded bit sequence is the encoded sequence of length S bits, or is in the encoded sequence of length S bits corresponding to the QAM symbol Ki bits.

Optionally, obtaining Qi QAM symbols {q_1, q_2, . . . , q_Qi} in the i-th subframe of the M subframes, including:

Acquiring Qi=N1 QAM symbols in the i-th subframe of the M subframes, and each QAM symbol q_j is transmitted on one of the N1 symbols for transmitting data in the i-th subframe, among them, N1 is a preset parameter.

The signal obtained on the A subcarriers on one of the N1 symbols for transmitting data in the i-th subframe is: the length obtained by multiplying each QAM symbol q_j by the CAZAC sequence of length A is A signal, where A is a preset parameter;

Based on the signal, one of the Q QAM symbols q_j is acquired.

Obtaining Qi=1 QAM symbols in an i-th subframe of the M subframes, where the QAM symbols are transmitted on N1 symbols for transmitting data in the i-th subframe, where N1 is a pre- Set parameters.

In the first time slot of the i-th subframe

The signals acquired on the A subcarriers on the symbols used to transmit data are: one QAM symbol on each symbol for transmitting data in the first slot of the i-th subframe and the CAZAC sequence of length A Multiply and proceed to length

The length of the orthogonal sequence spread is

Signal, where A is a preset parameter;

In the second time slot of the i-th subframe

The signals acquired on the A subcarriers on the symbols used for transmitting data are: the one QAM symbol is on the symbol for transmitting data and the length A in the second slot of the i-th subframe. The CAZAC sequence is multiplied and the length is

Orthogonal sequence spread spectrum, the length obtained is

signal of;

The one QAM symbol is acquired based on the acquired signal.

And acquiring the pilot signal on the at least one symbol of the ith subframe, including:

Acquiring a pilot signal on the N2 symbols of the i-th subframe, where the pilot signal is a CAZAC sequence, where N2 is a preset parameter, and N1+N2 is equal to the total number of symbols in the i-th subframe; or

Acquiring a pilot signal on the N2 symbols of the i-th subframe, wherein the pilot signal is an orthogonal sequence length of each element in a CAZAC sequence by using a length of N2/2 in each slot The frequency is obtained, N2 is a preset parameter, and N1+N2 is equal to the total number of symbols in the i-th subframe.

PUCCH format 1, PUCCH format 1a, PUCCH format 1b, PUCCH format 2, PUCCH format 2a, PUCCH format 2b resources.

According to still another aspect of the present application, a data transmitting apparatus is provided, the data transmitting apparatus comprising:

An encoding module, configured to perform channel coding on a transmission information block of length K bits, to obtain a coded sequence of length S bits;

a first transmission module, configured to transmit a coded sequence of length S bits on a corresponding channel resource in the M subframes, where M≥1;

a second transmission module, configured to transmit Qi QAM symbols {q_1, q_2, . . . , q_Qi} in an i-th subframe of the M subframes, wherein the Qi QAM symbols are by Ki in the encoded sequence of length S bits Bit is obtained, 1 ≤ i ≤ M;

Wherein each QAM symbol q_j, 1≤j≤Qi, is transmitted on at least one symbol for transmitting data of the i-th subframe, and the signal transmitted on the symbol for transmitting data is a CAZAC sequence and a QAM symbol q_j product;

And a third transmission module, configured to transmit a pilot signal on at least one symbol of the i-th subframe, where the pilot signal is a CAZAC sequence.

Optionally, the channel coding includes at least one of the following:

Turbo coding, convolutional coding, RM coding.

BPSK, QPSK, 16QAM, 64QAM, 256QAM.

Optional, including:

a scrambling module, configured to scramble the encoded bit sequence before modulating the QAM symbol, wherein the encoded bit sequence is the encoded sequence of length S bits, or The length corresponding to the QAM symbol is Ki bits in the encoded sequence of S bits.

Optionally, the second transmission module is further configured to: transmit Qi=N1 QAM symbols in the i-th subframe of the M subframes, and each of the QAM symbols q_j in the i-th subframe Transmission is performed on one of the symbols for transmitting data, where N1 is a preset parameter.

Optional, including:

An arithmetic module, configured to multiply each QAM symbol q_j by a CAZAC sequence of length A to obtain a signal of length A, wherein A is a preset parameter;

And a mapping module, configured to map the signal of length A to the A subcarriers on one of the N1 symbols used for transmitting data in the i-th subframe.

Optionally, the second transmission module is further configured to: transmit, in the i-th subframe of the M subframes, Q=1=1 QAM symbols, where the QAM symbols are N1 in the i-th subframe A symbolic transmission for transmitting data, wherein N1 is a preset parameter.

Optionally, the operation module is further configured to: multiply and length the QAM symbol q_j by a CAZAC sequence of length A in each symbol for transmitting data in the first slot of the i-th subframe. for

Orthogonal sequence spread spectrum, resulting in a length of

Signal, where A is a preset parameter;

The mapping module is further configured to:

Signal is mapped to the first time slot of the i-th subframe

A subcarriers on the symbol used to transmit data;

The operation module is further configured to: the one QAM symbol q_j is multiplied by a CAZAC sequence of length A in a symbol for transmitting data in a second slot of the i-th subframe, and the length is

Orthogonal sequence spread spectrum, resulting in a length of

signal of;

The mapping module is further configured to:

Signal is mapped to the second time slot of the i-th subframe

A subcarriers on the symbol used to transmit data.

Optionally, the third transmission module is configured to transmit a pilot signal on the N2 symbols of the i-th subframe, where the pilot signal is a CAZAC sequence, where N2 is a preset parameter, and N1+N2 is equal to the total number of symbols in the i-th subframe; or

According to still another aspect of the present application, a data receiving apparatus is provided, the data receiving apparatus comprising:

a receiving module, configured to receive a signal on a corresponding channel resource in the M subframes, to obtain an S-bit encoded sequence transmitted in the M subframes, where M≥1;

a decoding module, configured to perform channel decoding on the S-bit encoded sequence to obtain a transmission information block of length K bits;

a first acquiring module, configured to acquire Qi QAM symbols {q_1, q_2, . . . , q_Qi} in an i-th subframe of the M subframes, where the Qi QAM symbols are Ki in the encoded sequence of length S bits Bit is obtained, 1 ≤ i ≤ M;

And a second acquiring module, configured to acquire a pilot signal on at least one symbol of the i-th subframe, where the pilot signal is a CAZAC sequence.

Optionally, the channel coding includes at least one of the following:

Turbo coding, convolutional coding, RM coding.

BPSK, QPSK, 16QAM, 64QAM, 256QAM.

Optional, including:

a descrambling module, configured to descramble the encoded bit sequence before performing channel decoding on the S-bit encoded sequence, wherein the encoded bit sequence is the encoded sequence of length S bits, Or for The length corresponding to the QAM symbol is Ki bits in a coded sequence of S bits.

Optionally, the first acquiring module is further configured to: obtain, in the i-th subframe of the M subframes, Qi=N1 QAM symbols, and each QAM symbol q_j is N1 in the i-th subframe. Transmission is performed on one of the symbols for transmitting data, where N1 is a preset parameter.

Optionally, the signals obtained on the A subcarriers on one of the N1 symbols used for transmitting data in the i-th subframe are: each QAM symbol q_j is multiplied by a CAZAC sequence of length A The obtained signal of length A, wherein A is a preset parameter;

The first acquiring module acquires one QAM symbol q_j of the Qi QAM symbols based on the signal.

Optionally, the first acquiring module is further configured to: obtain, in an i-th subframe of the M subframes, a Q=1 symbol, where the QAM symbol is N1 in the i-th subframe. A symbolic transmission for transmitting data, wherein N1 is a preset parameter.

Optionally, in the first time slot of the i-th subframe

The length of the orthogonal sequence spread is

Signal, where A is a preset parameter;

In the second time slot of the i-th subframe

Orthogonal sequence spread spectrum, the length obtained is

signal of;

The first acquiring module acquires the one QAM symbol based on the acquired signal.

Optionally, the second acquiring module is further configured to: acquire a pilot signal on the N2 symbols of the i-th subframe, where the pilot signal is a CAZAC sequence, where N2 a predetermined parameter, and N1+N2 is equal to the total number of symbols in the i-th subframe; or

Optionally, the corresponding channel resource in each subframe of the M includes at least one of the following:

According to still another aspect of the present application, a base station is provided, the base station including a processor, a transceiver, and a memory.

Wherein, the memory is used to store data used by the processor to perform operations;

The transceiver is used to receive and transmit data under the control of the processor.

For downstream data transfer, the processor is used to read the program from memory and perform the following procedures:

The Q QAM symbols {q_1, q_2, . . . , q_Qi} are transmitted in the i-th subframe of the M subframes, and the Q QAM symbols are obtained by Ki bits in the encoded sequence of length S bits, 1≤i≤ M;

Optionally, the channel coding includes at least one of the following:

Turbo coding, convolutional coding, RM coding.

BPSK, QPSK, 16QAM, 64QAM, 256QAM.

Optionally, the processor is further configured to read the program from the memory and perform the following process:

Encoding the encoded bit sequence before the QAM symbol is modulated, wherein the encoded bit sequence is the encoded sequence of length S bits, or is the same as the QAM symbol Ki bits in the encoded sequence of length S bits.

Optionally, the processor is further configured to: read the program from the memory, and perform the following process: transmitting Qi=N1 QAM symbols in the i-th subframe of the M subframes, where each QAM symbol q_j is in the N1 of the i sub-frames are transmitted on one of the symbols for transmitting data, where N1 is a preset parameter.

Optionally, the processor is further configured to: read the program from the memory, and perform the following process: transmitting Qi=1 QAM symbols in the i-th subframe of the M subframes, where the QAM symbol is in the ith N1 of the sub-frames are transmitted on the symbol for transmitting data, where N1 is a preset parameter.

Orthogonal sequence spread spectrum, resulting in a length of

Signal, where A is a preset parameter;

The length is

Signal is mapped to the first time slot of the i-th subframe

A subcarriers on the symbol used to transmit data;

Orthogonal sequence spread spectrum, resulting in a length of

signal of;

The length is

Signal is mapped to the second time slot of the i-th subframe

A subcarriers on the symbol used to transmit data.

Based on any of the foregoing base station embodiments, optionally, the processor is further configured to: read a program from the memory, and perform the following process: transmitting a pilot signal on the N2 symbols of the i-th subframe, where the pilot signal is a CAZAC sequence, where N2 is a predetermined parameter, and N1+N2 is equal to the total number of symbols in the i-th subframe; or

For upstream data transfer, the processor is used to read the program from memory and perform the following process:

Receiving a signal on a corresponding channel resource in the M subframes, obtaining an S-bit encoded sequence transmitted in the M subframes, where M≥1;

Obtaining Q QAM symbols {q_1, q_2, . . . , q_Qi} in the i-th subframe of the M subframes, the Qi QAM symbols being Ki bits in the encoded sequence of length S bits Obtained, 1 ≤ i ≤ M;

Wherein each QAM symbol q_j, 1≤j≤Qi, is transmitted on at least one symbol for transmitting data of the i-th subframe, and the signal transmitted on the symbol for transmitting data is a CAZAC sequence and The product of the QAM symbol q_j;

A pilot signal is acquired on at least one symbol of the i-th subframe, the pilot signal being a CAZAC sequence.

Optionally, the channel coding includes at least one of the following:

Turbo coding, convolutional coding, RM coding.

BPSK, QPSK, 16QAM, 64QAM, 256QAM.

Decoding the encoded bit sequence before the S-bit encoded sequence is channel-decoded, wherein the encoded bit sequence is the encoded sequence of length S bits, or is associated with the QAM The length corresponding to the symbol is Ki bits in the encoded sequence of S bits.

Optionally, the processor is further configured to: read the program from the memory, and perform the following process: acquiring Qi=N1 QAM symbols in the i-th subframe of the M subframes, where each QAM symbol q_j is in the N1 of the i sub-frames are transmitted on one of the symbols for transmitting data, where N1 is a preset parameter.

Based on the signal, one of the Q QAM symbols q_j is acquired.

Optionally, the processor is further configured to: read the program from the memory, and perform the following process: acquiring Qi=1 QAM symbols in the i-th subframe of the M subframes, where the QAM symbol is in the ith N1 of the sub-frames are transmitted on the symbol for transmitting data, where N1 is a preset parameter.

Optionally, in the first time slot of the i-th subframe

The length of the orthogonal sequence spread is

Signal, where A is a preset parameter;

In the second time slot of the i-th subframe

Orthogonal sequence spread spectrum, the length obtained is

signal of;

The one QAM symbol is acquired based on the acquired signal.

Based on any of the foregoing base station embodiments for uplink data transmission, optionally, the processor is further configured to: read a program from the memory, and perform the following process: acquiring a pilot signal on the N2 symbols of the i-th subframe, The pilot signal is a CAZAC sequence, where N2 is a preset parameter, and N1+N2 is equal to the total number of symbols in the i-th subframe; or

According to yet another aspect of the present application, a terminal is provided that includes a processor, a transceiver, and a memory.

Optionally, the channel coding includes at least one of the following:

Turbo coding, convolutional coding, RM coding.

BPSK, QPSK, 16QAM, 64QAM, 256QAM.

Orthogonal sequence spread spectrum, resulting in a length of

Signal, where A is a preset parameter;

The length is

Signal is mapped to the first time slot of the i-th subframe

A subcarriers on the symbol used to transmit data;

The one QAM symbol q_j is multiplied by a CAZAC sequence of length A on a symbol for transmitting data in the second slot of the i-th subframe and is of length

Orthogonal sequence spread spectrum, resulting in a length of

signal of;

The length is

Signal is mapped to the second time slot of the i-th subframe

A subcarriers on the symbol used to transmit data.

Based on any of the foregoing terminal embodiments, optionally, the processor is further configured to read the program from the memory, and perform the following process: transmitting a pilot signal on the N2 symbols of the i-th subframe, where the pilot signal is a CAZAC sequence, where N2 is a predetermined parameter, and N1+N2 is equal to the total number of symbols in the i-th subframe; or

Optionally, the channel coding includes at least one of the following:

Turbo coding, convolutional coding, RM coding.

BPSK, QPSK, 16QAM, 64QAM, 256QAM.

Optionally, the processor is further configured to read the program from the memory, and perform the following process: in the M sub- Acquiring Qi=N1 QAM symbols in the i-th subframe in the frame, and each QAM symbol q_j is transmitted on one of the N1 symbols for transmitting data in the i-th subframe, where N1 is a pre- Set parameters.

Based on the signal, one of the Q QAM symbols q_j is acquired.

Optionally, in the first time slot of the i-th subframe

The length of the orthogonal sequence spread is

Signal, where A is a preset parameter;

In the second time slot of the i-th subframe

Orthogonal sequence spread spectrum, the length obtained is

signal of;

The one QAM symbol is acquired based on the acquired signal.

Based on any of the foregoing terminal embodiments for downlink data transmission, optionally, the processor is further configured to: read a program from the memory, and perform the following process: acquiring a pilot signal on the N2 symbols of the i-th subframe, The pilot signal is a CAZAC sequence, where N2 is a preset parameter, and N1+N2 is equal to the total number of symbols in the i-th subframe; or

The present application proposes a new transmission channel structure, thereby greatly improving transmission performance, and can reduce the number of repeated transmissions, improve system spectrum efficiency, and save power.

DRAWINGS

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings to be used in the embodiments will be briefly described below. Obviously, the drawings in the following description are only some of the present application. For the embodiments, those skilled in the art can obtain other drawings according to the drawings without any creative work.

1 is a flowchart of a data transmitting method according to an embodiment of the present application;

2 is a flowchart of a data receiving method according to an embodiment of the present application;

3 is a schematic diagram of a transmission structure under a regular cyclic prefix (CP, Cyclic Prefix) of 10 modulation symbols per subframe according to an embodiment of the present application;

4 is a schematic diagram of a transmission structure under an extended CP of 10 modulation symbols per subframe according to an embodiment of the present application;

FIG. 5 is a schematic diagram of a transmission structure under a normal CP of one modulation symbol per subframe according to an embodiment of the present application; FIG.

6(a) is a schematic diagram of a transmission structure under an extended CP of one modulation symbol per subframe according to an embodiment of the present application;

6(b) is a schematic diagram of a transmission structure in a conventional CP truncation mode of one modulation symbol per subframe according to an embodiment of the present application;

6(c) is a schematic diagram showing a transmission structure in an extended CP truncation mode of one modulation symbol per subframe according to an embodiment of the present application;

7 is a schematic diagram of a transmission structure under a normal CP of 24 modulation symbols per subframe according to an embodiment of the present application;

FIG. 8 is a block diagram of a data transmitting apparatus according to an embodiment of the present application; FIG.

9 is a block diagram of a data receiving apparatus according to an embodiment of the present application;

FIG. 10 is a schematic structural diagram of a base station according to an embodiment of the present application; FIG.

FIG. 11 is a schematic structural diagram of a terminal according to an embodiment of the present application.

detailed description

Exemplary embodiments of the present application will be described hereinafter with reference to the accompanying drawings. In the interest of clarity and conciseness, not all features of the actual embodiments are described in the specification. However, it should be appreciated that many implementation-specific decisions must be made in the development of any such practical embodiment in order to achieve the developer's specific objectives, for example, compliance with system and business related constraints, and these Restrictions may vary from implementation to implementation. In addition, it should be understood that although the development work may be very complicated and time consuming, it benefits from the public Such development work is only a routine task for those skilled in the art who open the content.

It should also be noted that, in order to avoid obscuring the present application by unnecessary details, only the device structure and/or processing steps closely related to the solution according to the present application are shown in the drawings, and omitted. Other details that have little to do with this application.

According to an embodiment of the present application, a data sending method is provided. The data sending method is as shown in FIG. 1 and includes:

Step S101, performing channel coding on a transmission information block of length K bits to obtain a coded sequence having a length of S bits;

Step S103, transmitting a coded sequence of length S bits on corresponding channel resources in M subframes, where M≥1;

Step S105, transmitting Qi quadrature Amplitude Modulation (QAM) symbols {q_1, q_2, . . . , q_Qi} in the i-th subframe of the M subframes, and the Q QAM symbols are encoded by S bits in length. Ki bits in the post-sequence are obtained, and Ki is the number of bits corresponding to the Qi QAM symbols, 1 ≤ i ≤ M;

Wherein each QAM symbol q_j, 1≤j≤Qi, is transmitted on at least one symbol for transmitting data of the i-th subframe, and the signal transmitted on the symbol for transmitting data is a fixed-amplitude zero autocorrelation (CAZAC) , Constant Amplitude Zero Auto-Correlation) The product of the sequence and the QAM symbol q_j;

Step S107, transmitting a pilot signal on at least one symbol of the i-th subframe, the pilot signal being a CAZAC sequence.

The symbols in one subframe (including symbols for transmitting data and symbols for transmitting pilots) are Single Carrier Frequency Division Multiple Access (SC-FDMA) or orthogonal frequency. OFDM (Orthogonal Frequency Division Multiplexing) symbol, the same below.

Wherein, the above channel coding includes at least one of the following:

Turbo coding, convolutional coding, Reed-Muller coding.

The QAM symbol is obtained by using at least one of the following modulation methods, including:

Binary Phase Shift Keying (BPSK, Binary Phase-Shift Keying), Quadrature Phase Shift Keying (QPSK, Quadrature Phase-Shift Keying), 16QAM, 64QAM, 256QAM .

In addition, before the QAM symbol is modulated, the encoded bit sequence needs to be scrambled, wherein the encoded bit sequence is a coded sequence of length S bits, or an encoding of length S bits corresponding to the QAM symbol. Ki bits in the post-sequence.

In the first possible implementation manner, the following content is specifically included in step S105:

Transmitting Qi=N1 QAM symbols in the i-th subframe of the M subframes, and each QAM symbol q_j is transmitted on one of the N1 symbols for transmitting data in the i-th subframe, where N1 is Pre-set parameters, preferably N1 = 10, 9, 8, 7.

Specifically, each QAM symbol q_j can be multiplied by a CAZAC sequence of length A (for example, specifically Point multiplication, that is, a QAM symbol q_j is multiplied by each element in the CAZAC sequence of length A, the same below, to obtain a signal of length A, wherein A is a preset parameter, it should be noted that A is the number of subcarriers in the current transmission resource on a symbol. For example, when the transmission resource is 1 physical resource block (PRB), A=12;

A signal of length A is mapped onto A subcarriers on one of the N1 symbols used to transmit data in the i-th subframe.

In addition, in the second possible implementation manner, the following content is specifically included in step S105:

Transmitting Qi=1 QAM symbols in the i-th subframe of the M subframes, and the QAM symbols are transmitted on the N1 symbols for transmitting data in the i-th subframe, where N1 is a preset parameter, preferably N1=10, 9, 8, and 7.

Specifically, a QAM symbol q_j may be multiplied by a CAZAC sequence of length A in a symbol for transmitting data in each of the first slots of the i-th subframe, and the length is

Orthogonal sequence spread spectrum, resulting in a length of

The signal, where A is a preset parameter, it should be noted that A is the number of subcarriers in the current transmission resource on one symbol, for example, when the transmission resource is 1 PRB, A=12;

Signal is mapped to the first time slot of the i-th subframe

A subcarriers on the symbols used to transmit data; multiply a QAM symbol q_j by a CAZAC sequence of length A for each symbol used to transmit data in the second slot of the i-th subframe And the length is

Orthogonal sequence spread spectrum, resulting in a length of

Signal; will be length

Signal is mapped to the second time slot of the i-th subframe

A subcarriers on the symbol used to transmit data.

In addition, in the second possible implementation manner, it is also possible to implement transmission of Qi=1 QAM symbols in the i-th subframe of the M subframes, where the Q1 symbols are N1 in the i-th subframe. Symbolic transmission for transmitting data:

The one QAM symbol can be in the first time slot of the i-th subframe and the length is

Multiplying the orthogonal sequences to get the length

Sequence of modulation symbols, the length is

Each modulation symbol in the sequence of modulation symbols is multiplied by a CAZAC sequence of length A. For each modulation symbol, a signal of length A is obtained, which is mapped into the first slot of the i-th subframe. of

The length of the A subcarriers on one of the symbols used to transmit the data, in turn

The product of each modulation symbol in the sequence of modulation symbols and the CAZAC sequence of length A is mapped into the first slot of the i-th subframe.

On the symbol used to transmit data, a QAM symbol q_j (1 ≤ j ≤ Qi) is in the second time slot and length of the ith subframe

Multiplying the orthogonal sequences to get the length

Sequence of modulation symbols, the length is

Each modulation symbol in the sequence of modulation symbols is multiplied by a CAZAC sequence of length A. For each modulation symbol, a signal of length A is obtained, which is mapped into the second slot of the i-th subframe. of

The product of each modulation symbol in the sequence of modulation symbols and the CAZAC sequence of length A is mapped into the second slot of the i-th subframe.

On the symbol used to transfer data.

In addition, transmitting the Q QAM symbols {q_1, q_2, . . . , q_Qi} in the i-th subframe of the M subframes can also be implemented as follows:

Performing spreading on the Q QAM symbols transmitted in the ith subframe, and mapping the spread symbol sequence to the N1 SC-FDMA/OFDM symbols used for carrying data in the current subframe;

The spreading of the Q QAM symbols includes: performing time domain and/or frequency domain spreading; specifically:

Qi=N1, performing frequency domain spreading of length A for each modulation symbol in the Qi QAM symbols, and mapping the spread modulated symbol sequence to one of N1 SC-FDMA/OFDM symbols, where A The number of subcarriers occupied in the frequency domain for the transmission in the current subframe; for example, reusing the spread spectrum structure of PUCCH format 2/2a/2b in Rel-8/9/10; or

Qi=2*A, the length of the A modulation symbols in the Qi QAM symbols is

Time domain spreading, mapping the spread modulated symbol sequence to the front of N1 SC-FDMA/OFDM symbols

On the symbols, the length of the remaining A modulation symbols in the Qi QAM symbols is

Time domain spreading, mapping the spread modulated symbol sequence to N1 SC-FDMA/OFDM symbols

On the symbol, where A is the number of subcarriers occupied by the transmission in the frequency domain in the current subframe; for example, reusing the spread spectrum structure of PUCCH format 3 in Rel-10; or

Qi=1, the length of the QAM symbol is

Time domain spreading, and performing frequency domain spreading of length A for each modulation symbol after time domain spreading, and mapping the spread modulated symbol sequence to N1 SC-FDMA/OFDM symbols

On the symbol, the length of the one QAM symbol is

On the symbol, where A is the number of subcarriers occupied by the transmission in the frequency domain in the current subframe; for example, the spread spectrum structure of PUCCH format 1/1a/1b in Rel-8 is reused.

The step S107 can be specifically implemented as follows:

Transmitting a pilot signal on N2 symbols of the i-th subframe, the pilot signal is a CAZAC sequence, where N2 is a preset parameter, and N1+N2 is equal to the total number of symbols in the i-th subframe, preferably N2= 1, 2, 3; or

Transmitting a pilot signal on N2 symbols of the i-th subframe, the pilot signal is obtained by spreading each element in a CAZAC sequence by an orthogonal sequence of length N2/2, and N2 is a preset parameter. And N1+N2 is equal to the total number of symbols in the i-th subframe, preferably N2=1, 2, 3.

In addition, step S107 can also be implemented as follows:

Spreading the pilot signal (reference signal sequence), and mapping the spread reference signal sequence to N2 SC-FDMA/OFDM symbols used to carry the reference signal in the current subframe, where N1+N2=current The total number of SC-FDMA/OFDM symbols in a subframe.

The spreading of the reference signal sequence includes: performing time domain and/or frequency domain spreading; specifically:

Frequency-domain spreading of length A is performed on the reference signal sequence, and the spread-spectrum symbol is mapped to each of N2 SC-FDMA/OFDM symbols, where A is the frequency of the transmission in the current subframe. The number of subcarriers occupied by the domain; or,

The reference signal sequence is subjected to time domain spreading with a length of N2/2, and the spread symbols are mapped to the first N2/2 symbols in the N2 SC-FDMA/OFDM symbols, and the length of the reference signal sequence is N2. /2 time domain spreading, mapping the spread symbols to the last N2/2 symbols in the N2 SC-FDMA/OFDM symbols; or

Performing frequency domain spreading of length A and time domain spreading of length N2/2 on the reference signal sequence, and mapping the spread symbols to the first N2/2 symbols in the N2 SC-FDMA/OFDM symbols Performing frequency domain spreading of length A and time domain spreading of length N2/2 on the reference signal sequence, and mapping the spread symbols to the last N2/2 symbols in N2 SC-FDMA/OFDM symbols Above, where A is the number of subcarriers occupied in the frequency domain by the transmission in the current subframe.

In addition, the corresponding channel resource in the foregoing M subframes includes at least one of the following:

PUCCH format 1, PUCCH format 1a, PUCCH format 1b, PUCCH format 2, PUCCH format 2a, PUCCH format 2b resources. Of course, it can also be a PUCCH format 3 channel resource.

A data receiving method is also provided according to an embodiment of the present application. The data receiving method is as shown in FIG. 2, and includes:

Step S201, receiving signals on corresponding channel resources in M subframes, and obtaining an S-bit encoded sequence transmitted in M subframes, where M≥1;

Step S203, performing channel decoding on the S-bit encoded sequence to obtain a transmission information block of length K bits;

Step S205, acquiring Qi QAM symbols {q_1, q_2, . . . , q_Qi} in the i-th subframe of the M subframes, and the Qi QAM symbols are obtained by Ki bits in the encoded sequence of length S bits, Ki The number of bits corresponding to the Qi QAM symbols, 1 ≤ i ≤ M;

Step S207: Acquire a pilot signal on at least one symbol of the i-th subframe, and the pilot signal is a CAZAC sequence.

Wherein, the above channel coding includes at least one of the following:

Turbo coding, convolutional coding, RM coding.

BPSK, QPSK, 16QAM, 64QAM, 256QAM.

In addition, before performing channel decoding on the S-bit encoded sequence, the encoded bit sequence needs to be descrambled, wherein the encoded bit sequence is a coded sequence of length S bits or a length corresponding to the QAM symbol. For Ki bits in the encoded sequence of S bits.

In the first possible implementation manner, the following content is further included in step S205:

Acquiring Qi=N1 QAM symbols in the i-th subframe of the M subframes, and each QAM symbol q_j is transmitted on one of the N1 symbols for transmitting data in the i-th subframe, where N1 is Pre-set parameters, preferably N1 = 10, 9, 8, 7.

The signal obtained on the A subcarriers on one of the N1 symbols used for transmitting data in the i-th subframe is: the length of each QAM symbol q_j multiplied by the CAZAC sequence of length A is A signal, where A is a preset parameter;

Based on the above signals, one of the Q QAM symbols q_j is obtained.

In addition, in the second possible implementation manner, the following content is specifically included in step S205:

Acquiring Qi=1 QAM symbols in the i-th subframe of the M subframes, and the QAM symbols are transmitted on the N1 symbols for transmitting data in the i-th subframe, where N1 is a preset parameter, preferably N1=10, 9, 8, and 7.

Specifically, in the first slot of the i-th subframe

The length of the orthogonal sequence spread is

Signal, where A is a preset parameter;

In the second time slot of the i-th subframe

The signals acquired on the A subcarriers on the symbols used for transmitting data are: one QAM symbol on each symbol for transmitting data and the CAZAC sequence of length A in the second slot of the i-th subframe. Multiply and proceed to length

Orthogonal sequence spread spectrum, the length obtained is

signal of;

Based on the acquired signals, a QAM symbol is acquired.

In addition, obtaining Qi QAM symbols {q_1, q_2, . . . , q_Qi} in the i-th subframe of the M subframes can also be implemented as follows:

Performing despreading on the N1 signals on the SC-FDMA/OFDM symbol for carrying data in the subframe to obtain Qi QAM symbols;

De-spreading the Qi QAM symbols includes: performing time domain and/or frequency domain despreading; specifically:

A frequency domain despreading of length A is performed on each SC-FDMA/OFDM signal in the N1 SC-FDMA/OFDM symbols to obtain one QAM modulation symbol, and constitutes QAM including Qi=N1 QAM modulation symbols. a symbol sequence {q_1, q_2, ..., q_Qi}, where A is the number of subcarriers occupied by the transmission in the frequency domain in the current subframe; or

For the former in N1 SC-FDMA/OFDM symbols

The length of the signal on the symbol is Time domain despreading, resulting in a sequence 1 containing A QAM modulation symbols, followed by N1 SC-FDMA/OFDM symbols

The length of the signal on the symbol is

Time domain despreading, obtaining sequence 2 containing A QAM modulation symbols, and sequence 1 and sequence 2 constitute a QAM sequence {q_1, q_2, ..., q_Qi} containing Qi=2*A QAM symbols, where A is The number of subcarriers occupied by the secondary transmission in the frequency domain in the current subframe; or

Frequency-domain despreading of length A for signals on each of the N1 SC-FDMA/OFDM symbols, and for the former in N1 SC-FDMA/OFDM symbols

The length of the symbol after the frequency domain despreading on the symbols is

Time domain despreading, after N1 SC-FDMA/OFDM symbols

The time domain despreading frequency obtains one QAM symbol, where A is the number of subcarriers occupied by the transmission in the frequency domain in the current subframe.

The step S207 can be specifically implemented as follows:

Obtaining a pilot signal on the N2 symbols of the i-th subframe, the pilot signal is a CAZAC sequence, where N2 is a preset parameter, and N1+N2 is equal to the total number of symbols in the i-th subframe, preferably N2= 1, 2, 3; or

Obtaining a pilot signal on N2 symbols of the i-th subframe, wherein the pilot signal is obtained by spreading each element in a CAZAC sequence by an orthogonal sequence of length N2/2 in each slot, N2 It is a preset parameter, and N1+N2 is equal to the total number of symbols in the i-th subframe, preferably N2=1, 2, 3.

In addition, step S207 can also be implemented as follows:

Despreading the signals on the SC-FDMA/OFDM symbols used to carry the pilot (reference signal) in the subframe to obtain a reference signal sequence (ie, a pilot sequence), where N1+N2=the current sub- The total number of SC-FDMA/OFDM symbols in the frame.

The spreading of the reference signal includes: performing time domain and/or frequency domain despreading; specifically:

In addition, the corresponding channel resources in the M subframes include at least one of the following:

In addition, what needs to be explained above is:

1) In the above process, when the S-bit encoded sequence is allocated to M subframes for transmission, the S-bit encoded sequence may be QAM-modulated, and the modulation symbols may be allocated to M subframes for transmission, or may be directly S. The bit-coded sequence is allocated to M subframes, and the coded sequence allocated to the subframe is QAM-modulated in each subframe;

2) The above-mentioned modulation symbol and reference signal (ie, pilot) are multiplied by the CAZAC sequence and subjected to orthogonal sequence spreading, and one of PUCCH format 1/1a/1b/2/2a/2b/3 can be reused. The implementation process corresponding to PUCCH format;

3) the corresponding channel resource corresponds to the used CAZAC sequence and the orthogonal spreading sequence, and corresponds to a PUCCH format;

4) Preferably, the PUCCH format 2 spreading mode and channel resources are used for transmission, or the PUCCH format 1b spreading mode and channel resources are used for transmission;

5) In the above process, for the uplink data transmission process, the entity is the terminal; for the downlink data transmission process, the entity is the base station.

For a better understanding of the present application, the inventive aspects of the present application will be described below in conjunction with specific embodiments.

Embodiment 1: Assume that a transport block (TB, Transport Block) has a size of K=20 bits and is transmitted in M=8 subframes, and adopts QPSK modulation, and can transmit 20-bit coded information (10 QPSKs) in each subframe. The modulation symbol) occupies 1 PRB for transmission. The transmission structure is shown in FIG. 3. FIG. 3 shows the transmission structure under the conventional CP, which has 10 modulation symbols per subframe. The specific transmission process is as follows:

Sending end:

Step 1: Channel coding: a transport block of length K=20, which is coded by turbo coding into a sequence of length S=148 bits.

Step 2: Grouping:

Method 1: Group the bits:

1) Divide the encoded sequence into

Group, wherein the first 7 groups, each group contains ki=20-bit encoded information, and the last group contains 8-bit encoded information, wherein since the last set of 8-bit information is less than 20-bit information of one transmission bearer, The 8-bit information may be repeated to 20 bits, or 12-bit information may be taken from the head of the 148-bit encoded sequence in the last group, and 20 bits are transmitted for transmission;

2) performing QPSK modulation on 20 bits of information in each group, and obtaining 10 QPSK modulation symbols in each group; or not including 2) in this step, implementing QPSK modulation in step 3;

Method 2: grouping modulation symbols;

1) performing QPSK modulation on the encoded sequence of 148 bits in length to obtain 74 QPSK modulation symbols;

2) Divide 74 modulation symbols into

Group, wherein the first 7 groups, each group contains 10 QPSK modulation symbols, and the last group contains 4 QPSK modulation symbols, wherein 10 QPSK modulations are less than one transmission carrier due to the last group of 4 QPSK modulation symbols Symbol, the 4 QPSK modulation symbols may be repeated to 10, or 6 QPSK modulation symbols are taken from the head of 74 QPSK modulation symbols and placed in the last group, and 10 QPSK modulation symbols are used for transmission;

Step 3: Repeat the following steps for each of M = 8 subframes:

A) When Method 2 is used in Step 2, and Method 1 does not include 2) in Step 2 (ie, when QPSK modulation is not performed): QPSK modulation is performed to transmit 20 bits of information in the current subframe, and 10 QPSK modulations are obtained. a symbol that maps the 10 QPSK modulation symbols onto the SC-FDMA/OFDM symbol of N1=10 bearer data, otherwise (ie, step 2 adopts method 1 and method 1 includes 2 in step 2), or step 2 adopts Method 2), directly mapping 10 QPSK modulation symbols transmitted in the current subframe onto SC1/10 DMA symbols of N1=10 bearer data; wherein each modulation symbol is subjected to frequency domain spreading with a length of 12 Then mapped to 12 subcarriers of each SC-FDMA/OFDM symbol, that is, each modulation symbol is multiplied by a CAZAC sequence of length 12 to obtain a sequence of length 12, which is mapped to 12 of an SC-FDMA/OFDM symbol. On subcarriers;

For example, the specific spread spectrum and mapping methods are as follows:

Where z is the mapped sequence, d(n) is the sequence of 10 QPSK modulation symbols in each group, n is the SC-FDMA/OFDM symbol index used to transmit data in one subframe, and i is an SC- Subcarrier index on FDMA/OFDM symbols (in a PRB),

The number of subcarriers in a PRB,

Representing the number of QPSK modulation symbols mapped on one SC-FDMA/OFDM symbol, a CAZAC sequence of length 12 can be generated as follows:

among them,

Given by the table below,

And

When n _s mod2=0,

When n _s mod2=1,

In the above formula, ns is the slot number, and l is the SC-FDMA/OFDM symbol number.

For the number of SC-FDMA symbols in a time slot, c(i) is a pseudo-random sequence and consists of

Initialization, where

The cell ID of the working cell of the UE,

Channel resource index for PUCCH format2,

The amount of bandwidth available in the system for PUCCH format2 (expressed as the number of RBs),

Then, the cyclic shift occupied by PUCCH format 1/1a/1b in the mixed region of the format2 available resource;

Table 5.5.1.2-1:

Time

Definition.

Table I

B) generating a CAZAC sequence of length 12 for each symbol used for transmitting pilots as a reference signal sequence transmitted on the symbol, respectively undergoing a time domain spread of length 2 in each time slot, ie length Spreading the orthogonal sequence of 2 to the SC-FDMA/OFDM symbol of N2=4 bearer pilots (reference signals) in one subframe, wherein each of the reference signal sequences of length 12 The symbol corresponds to one subcarrier;

For example, the specific spread spectrum and mapping methods are as follows:

among them,

Same as α(n _s ,l);

The definition is as shown in the following table;

For the number of pilot symbols in a slot, for a regular CP,

When expanding the CP,

Table 5.5.2.2.1-3: Orthogonal sequences for PUCCH formats 2, 2a, 2b

常规CPConventional CP	扩展CPExtended CP
[1 1][1 1]	[1][1]

Table II

C) transmitting the mapped signal on the PUCCH format 2/2a/2b channel resource corresponding to the subframe.

Receiving end:

Step 1: receiving: repeating the following operations in each of M=8 subframes, where steps C and D may also not be performed, especially when using the ML algorithm to obtain a sequence of modulation symbols transmitted in one subframe;

A) receiving a signal on a PUCCH format 2/2a/2b channel resource corresponding to the subframe;

B) frequency-domain despreading a signal of length 12 on each symbol on the SC-FDMA/OFDM symbol carrying 10 data in the current subframe, that is, multiplying by the conjugate of the CAZAC sequence used by the transmitting end The sequence, for example, the specific process may be an inverse process of the above-mentioned transmitting end, and one QPSK modulation symbol is obtained, and a total of 10 QPSK modulation symbols are obtained;

C) Despreading a signal of length 12 on each symbol on the SC-FDMA/OFDM symbol of the two pilot-bearing pilots in the first time slot in the current subframe to obtain a column length of 12 a reference symbol sequence used as a channel estimate for the first time slot; a length of 12 on each symbol on the SC-FDMA/OFDM symbol that yields 2 pilot pilots in the second time slot in the current subframe The signal is despread, and a sequence of reference symbols of length 12 is obtained, which is used as a channel estimation of the second time slot. For example, the specific process may be an inverse process of the above transmitting end;

D) performing channel compensation on the modulation symbols in one subframe based on the channel estimation values generated by the pilots;

E) When the transmitting end step 2 adopts the method 1 and does not include 2), QPSK demodulation is performed on 10 modulation symbols in one subframe to obtain a 20-bit encoded sequence Si, otherwise (ie, the method used in the transmitting end step 2) 1 and 2), or the method 2) is adopted in the sending step 2, and E) is not executed;

Step 2: Cascade:

When method 1 is used in the sender step 2:

1) performing QPSK demodulation on each of the 10 modulation symbols, and obtaining a 20-bit encoded sequence in each group; wherein, when the transmitting end step 2 does not include 2), this step is not performed;

2) cascading the 20-bit encoded sequences obtained in each subframe (merging the repeatedly transmitted bits) to obtain a coded sequence of length 148;

When method 2 is used in the sender step 2:

1) cascading 10 QPSK modulation symbols obtained in each subframe (merging the symbols of repeated transmission) to obtain a QPSK modulation symbol sequence of length 74;

2) performing QPSK demodulation on a sequence of QPSK modulation symbols of length 74 to obtain a coded sequence of length 148;

Step 3: Channel decoding: performing turbo decoding on the encoded sequence of length 148 to obtain a transport block having a length of K=20;

Embodiment 2: Assume that one transport block (TB) has a size of K=20 bits and is transmitted in M=50 subframes, and QPSK modulation is used, and 20-bit coding information (10 QPSK modulation symbols) can be transmitted in each subframe. It occupies 1 PRB for transmission. The transmission structure is shown in Figure 3. The specific transmission process is as follows:

Sending end:

Step 1: Channel coding: The transmission block of length K=20 undergoes turbo coding and rate matching (rate matching, that is, repeating 3 data streams output by turbo coding to match the corresponding coding length), and coding is length S=50*20=1000 Bit-coded sequence;

Step 2: Grouping:

Method 1: Group the bits:

1) The encoded sequence is divided into 50 groups, wherein each group contains ki=20-bit encoded information (since the encoding and rate matching itself are performed according to the total number of bits transmitted in 50 subframes, it can be completely divided into 50 group);

Method 2: Group modulation symbols:

1) performing QPSK modulation on the encoded sequence of 1000 bits in length to obtain 500 QPSK modulation symbols;

2) divide 500 modulation symbols into 50 groups, wherein each group contains 10 QPSK modulation symbols;

Step 3: Transmission: Repeat the corresponding steps in Embodiment 1 for each of the 50 subframes, and details are not described herein;

Receiving end:

Step 1: Receive: repeat the corresponding steps in Embodiment 1 in each of the 50 subframes, and details are not described herein;

Step 2: Cascade:

When the sender uses step 1 in step 2:

2) cascading the 20-bit encoded sequences obtained in each subframe to obtain a coded sequence having a length of 1000;

When the sender uses step 2 in step 2:

1) cascading 10 QPSK modulation symbols obtained in each subframe to obtain a QPSK modulation symbol sequence of length 500;

2) performing QPSK demodulation on a sequence of QPSK modulation symbols of length 500 to obtain a coded sequence having a length of 1000;

Step 3: Channel decoding: performing turbo decoding and de-rate matching on the encoded sequence of length 1000 (the rate-matching combines the corresponding bits of the repetitive transmission to obtain a gain), and obtains a transport block of length K=20;

In the foregoing Embodiments 1 and 2, under the extended CP, the symbol allocation of the bearer data and the bearer pilot in one subframe is as shown in FIG. 4, and the specific implementation steps when using the structure are similar to those of the foregoing embodiment, except that one The number of symbols N1 carrying the data in the subframe and the number of symbols N2 carrying the pilot, and the number of encoded bits and the number of QAM symbols allocated to each subframe are not described herein.

Embodiment 3: It is assumed that one transport block (TB) has a size of K=20 bits and is transmitted in M=74 subframes, and QPSK modulation is used, and 2-bit coding information (1 QPSK modulation symbol) can be transmitted in each subframe. It occupies 1 PRB for transmission. The transmission structure is shown in Figure 5. The specific transmission process is as follows:

Sending end:

Step 2: Grouping:

Method 1: Bit grouping:

1) Divide the encoded sequence into

Group, wherein each group contains ki=2 bits of encoded information;

2) performing QPSK modulation on the 2-bit information in each group, and obtaining 1 QPSK modulation symbol in each group; or 2) in this step, and performing QPSK modulation in step 3;

Method 2: Modulation symbol grouping

2) Divide 74 modulation symbols into

a group, wherein each group contains 1 QPSK modulation symbol;

Step 3: Transmission: Repeat the following steps for each of the 74 subframes:

A) When method 1 is used in step 2, and method 1 does not include 2) in step 2 (ie, no QPSK adjustment is performed) Timing): QPSK modulation is performed on the 2-bit information in the encoded sequence transmitted in the current subframe to obtain one modulation symbol, and the one modulation symbol is mapped to N1=8 carrier data in one subframe. On the SC-FDMA/OFDM symbol, otherwise (ie, when step 2 is used in method 2 and method 1 includes 2 in step 2), or step 2 is used in method 2), the one modulation symbol is directly mapped into one subframe. N1=8 SC-FDMA/OFDM symbols carrying data; wherein the 1 modulation symbol is subjected to 4 modulation symbols in a time domain spreading sequence of length 4 in each slot, wherein the 4 modulation symbols are Each modulation symbol is mapped to 12 subcarriers of each SC-FDMA/OFDM symbol after frequency domain spreading with a length of A=12 (ie, multiplied by a CAZAC sequence of length 12) (the above-mentioned spreading step is also It can be first frequency domain spread spectrum and then time domain spread spectrum, the order is variable);

For example, the specific spread spectrum and mapping methods are as follows:

And

among them,

d(0) is the one modulation symbol,

The number of symbols for transmitting data in each slot, for the regular format, in each slot

For the truncated format (ie when the last symbol is used to transmit SRS), in the first time slot

In the second time slot

different

Corresponding orthogonal sequence

As shown in the table below;

When n _s mod2=0,

When n _s mod2=1,

And

Wherein, when the conventional CP is d=2, when the CP is extended, d=0;

In the above formula,

For the cyclic shift interval,

The PUCCH format 1/1a/1b channel resource number, other parameters are the same as those mentioned in Embodiment 1;

Table 5.4.1-2:

Orthogonal sequence

Table 3

Table 5.4.3-3:

Orthogonal sequence

Table 4

B) generating a reference signal sequence of length 12, respectively performing a time domain spreading of length 3 in each time slot, and performing a frequency domain of length 12 for each of the spread reference signal sequences of length 12 Spreading (the above-mentioned spreading step can also be first frequency domain spread spectrum and then time domain spread spectrum, the order is variable), and mapped to SC2/FDMA/OFDM symbols of N2=6 bearer pilots (reference signals) in one subframe Above, wherein each symbol in the reference signal sequence of length 12 corresponds to one subcarrier;

For example, the specific spread spectrum and mapping methods are as follows:

among them,

For the number of pilot symbols in a time slot, for long-term CPs,

When expanding the CP,

n'(n _s ), N' in the above formula,

And

Define the same step A

Table 5.5.2.2.1-2: Orthogonal sequences for PUCCH formats 1,1a and 1b

Table 5

C) transmitting the mapped signal on the PUCCH format 1/1a/1b channel resource corresponding to the subframe.

Receiving end:

Step 1: Receive: repeat the following operations in each of the 74 subframes, where steps B and C may also not be performed, especially when the ML algorithm is used to obtain the sequence of modulation symbols transmitted in each subframe;

A) receiving a signal on a PUCCH format1/1a/1b channel resource corresponding to the subframe;

B) despreading the signals on the SC-FDMA/OFDM symbols carrying the data in the current subframe, for example, in the inverse process of the corresponding operation of the transmitting end, to obtain one QPSK modulation symbol;

C) Demodulating the signal of length 12 on each symbol on the SC-FDMA/OFDM symbol of the two pilot-bearing pilots in the first time slot in the current subframe to obtain a time domain and a frequency domain despreading, to obtain 1 a sequence of reference symbols having a column length of 12, used as a channel estimate for the first time slot; and each symbol on the SC-FDMA/OFDM symbol of the two pilot-bearing pilots in the second time slot in the current subframe The signal of length 12 is despread in the time domain and the frequency domain, and a sequence of reference symbols of length 12 is obtained, which is used as a channel estimation of the second time slot; for example, the inverse process corresponding to the corresponding operation of the transmitting end,

D) performing channel compensation on the modulation symbols transmitted in the current subframe based on the channel estimation values generated by the pilots;

E) when the transmitting end step 2 adopts the method 1 and does not include 2), QPSK demodulates the modulation symbols transmitted in the current subframe to obtain a 2-bit encoded sequence; otherwise, the method 1 is adopted in the transmitting end step 2 Contains 2), or adopts method 2) in step 2 of the transmitting end, and does not execute E);

Step 2: Cascade:

When method 1 is used in the sender step 2:

1) performing QPSK demodulation on one modulation symbol of each group, and obtaining a 2-bit encoded sequence in each group; wherein, when the transmitting end step 2 does not include 2), this step is not performed;

2) Cascading the 2-bit encoded sequence Si obtained in each subframe to obtain a coded sequence of length 148

When method 2 is used in the sender step 2:

1) Cascading one QPSK modulation symbol obtained in each subframe to obtain a QPSK modulation symbol sequence of length 74;

Embodiment 4: Assume that a transport block (TB) has a size of K=20 bits and is transmitted in M=100 subframes, and QPSK modulation is used, and 20-bit coding information (10 QPSK modulation symbols) can be transmitted in each subframe. It occupies 1 PRB for transmission. The transmission structure is shown in Figure 5. The specific transmission process is as follows:

Sending end:

Step 1: Channel coding: The transmission block of length K=20 undergoes turbo coding and rate matching (rate matching, that is, repeating 3 data streams output by turbo coding to match the corresponding coding length), and coding is length S=100*2=200 Bit-coded sequence;

Step 2: Grouping:

Method 1: Bit grouping:

1) The encoded sequence is divided into 100 groups, wherein each group contains ki=2 bits of coded information (since the coding and rate matching itself is performed according to the total number of bits transmitted in 100 subframes, it can be completely divided into 100 groups);

Method 2: Modulation symbol grouping:

1) performing QPSK modulation on the encoded sequence of 200 bits in length to obtain 100 QPSK modulation symbols;

2) dividing 100 modulation symbols into 100 groups, wherein each group contains 1 QPSK modulation symbol;

Step 3: Transmission: The processing procedure for each of the 100 subframes is the same as the corresponding step in Embodiment 3, and details are not described herein;

Receiving end:

Step 1: Receive: repeat the corresponding steps in Embodiment 3 in each of the 100 subframes, and details are not described herein;

Step 2: Cascade:

When the sender uses step 1 in step 2:

2) cascading the 2-bit encoded sequences obtained in each subframe to obtain a coded sequence having a length of 200;

When the sender uses step 2 in step 2:

1) Cascading one QPSK modulation symbol obtained in each subframe to obtain a QPSK modulation symbol sequence of length 100;

2) performing QPSK demodulation on a QPSK modulation symbol sequence of length 100 to obtain a coded sequence having a length of 200;

Step 3: Channel decoding: performing turbo decoding and de-rate matching on the encoded sequence of length 200 (the rate-matching combines the corresponding bits of the repetitive transmission to obtain a gain), and obtains a transport block of length K=20;

In the foregoing

embodiments

3 and 4, under the extended CP, the symbol allocation of the bearer data and the bearer pilot in one subframe is as shown in FIG. 6(a); when the last symbol has the SRS transmission, the regular CP and the extended CP are in the The symbol assignments of the bearer data and the bearer pilot in one subframe are respectively shown in FIGS. 6(b) and (c), and the specific implementation steps when using these structures are similar to those of the above embodiment, except that the data is carried in one subframe. The number of symbols N1 and the number of symbols carrying the pilot N2, and the number of encoded bits and the number of QAM symbols allocated to each subframe are not described herein.

Embodiment 5: Assume that one transport block (TB) has a size of K=20 bits and is transmitted in M=10 subframes, and QPSK modulation is used, and 48-bit coded information (24 QPSK modulation symbols) can be transmitted in each subframe. It occupies 1 PRB for transmission. The transmission structure is shown in Figure 7. The specific transmission process is as follows:

Sending end:

Step 1: Channel coding: The transmission block of length K=20 undergoes turbo coding and rate matching (rate matching, that is, repeating 3 data streams output by turbo coding to match the corresponding coding length), and coding is length S=48*10=480 Bit-coded sequence;

Step 2: Grouping:

Method 1: Group the bits:

1) The encoded sequence is divided into 10 groups, wherein each group of encoded sequences contains ki=48-bit encoded information (since the encoding and rate matching itself are performed according to the total number of bits transmitted in 10 subframes, so Completely divided into 10 groups);

2) performing QPSK modulation on the 48-bit information in each set of the encoded sequence, and obtaining 24 QPSK modulation symbols in each group; or not including 2) in this step, and implementing QPSK modulation in step 3;

Method 2: Group modulation symbols:

1) performing QPSK modulation on the encoded sequence of 480 bits in length to obtain 240 QPSK modulation symbols;

2) dividing 240 modulation symbols into 10 groups, wherein each group contains 24 QPSK modulation symbols;

Step 3: Transmission: Repeat the following steps for each of the 10 subframes:

A) When Method 2 is used in Step 2, and Method 1 does not include 2) in Step 2 (ie, when QPSK modulation is not performed): QPSK modulation is performed on 48-bit information in the encoded sequence transmitted in the current subframe. Obtaining 24 QPSK modulation symbols, mapping 12 modulation symbols of the 24 QPSK modulation symbols onto 5 SC-FDMA/OFDM symbols carrying data in the first slot, the 24 QPSK modulation symbols The remaining 12 modulation symbols are mapped onto the 5 SC-FDMA/OFDM symbols carrying the data in the second slot, otherwise (ie, step 2 uses method 1 and method 1 includes 2 in step 2), or Step 2: When method 2 is used, directly mapping 12 modulation symbols of the 24 QPSK modulation symbols transmitted in the current subframe to the SC-FDMA/OFDM symbols carrying 5 data in the first slot, The remaining 12 modulation symbols of the 24 QPSK modulation symbols are mapped onto 5 SC-FDMA/OFDM symbols carrying data in the second slot; wherein, in each slot, 12 modulation symbols have a length of 5 Time domain spread spectrum is mapped onto 12 subcarriers of each SC-FDMA/OFDM symbol, ie each of 12 modulation symbols One modulation symbol corresponds to one subcarrier, and each of the 12 modulation symbols is multiplied by an orthogonal sequence of length 5 and mapped onto 5 SC-FDMA/OFDM symbols;

For example, the specific spread spectrum and mapping methods are as follows:

Wherein, for the conventional format, the number of symbols of the bearer data of the first time slot and the second time slot is the same, that is,

For the truncated format, in the first time slot

In the second time slot

Orthogonal sequence

And

As shown in the table below;

The number of the PUCCH format 3 channel resource;

among them,

with

The relationship is as follows;

Table 5.5.2.2.1-4: PUCCH format 3

versus

Relationship

Table 6

Table 5.4.2A-1: Orthogonal sequences

Table 7

Wherein, the above-mentioned spreading process may further include symbol level scrambling, for example:

It is further possible to include a cyclic shift, for example:

The spread spectrum sequence may further include precoding, for example:

P is the number of antenna ports;

For example, the specific spread spectrum and mapping methods are as follows:

among them,

Same as above

C) transmitting the mapped signal on the PUCCH format 3 channel resource corresponding to the subframe.

Receiving end:

Step 1: Receive: Repeat the following steps in each of the 10 subframes:

A) receiving a signal on a PUCCH format 3 channel resource corresponding to the subframe;

B) performing time domain despreading on the signals of the five SC-FDMA/OFDM symbols carrying the data in the first slot in the current subframe. For example, the specific process may be the inverse process of the foregoing transmitting end, and 12 QPSKs are obtained. The modulation symbol is used to perform time domain despreading on the signals of the five SC-FDMA/OFDM symbols carrying data in the second time slot in the current subframe, to obtain 12 QPSK modulation symbols, and obtain 24 QPSK modulation symbols in total. For example, the specific process may be the reverse process of the above transmitting end,

E) When the transmitting end step 2 adopts method 1 and does not include 2), QPSK demodulation is performed on 24 modulation symbols in one subframe to obtain a 48-bit encoded sequence, otherwise (ie, method 1 is adopted in the transmitting end step 2) And includes 2), or the method 2) is adopted in the sending step 2, and E) is not executed;

Step 2: Cascade:

When the sender uses step 1 in step 2:

1) performing QPSK demodulation on each of the 24 modulation symbols, and obtaining a 48-bit encoded sequence in each group; wherein, when the transmitting end step 2 does not include 2), this step is not performed;

2) cascading the 48-bit encoded sequences obtained in each subframe to obtain a coded sequence of length 480;

When the sender uses step 2 in step 2:

1) cascading 24 QPSK modulation symbols obtained in each subframe to obtain a QPSK modulation symbol sequence of length 240;

2) performing QPSK demodulation on a sequence of QPSK modulation symbols of length 240 to obtain a coded sequence of length 480;

Step 3: Channel decoding: performing turbo decoding and de-rate matching on the encoded sequence of length 480 (the rate-matching combines the corresponding bits of the repetitive transmission to obtain a gain) to obtain a transport block of length K=20;

In the foregoing Embodiment 5, under the extended CP, the symbol allocation of the bearer data and the bearer pilot in one subframe is as shown in FIG. 4, and the specific implementation steps when the structure is adopted are similar to the content of the foregoing embodiment, except that one subframe is different. The number of symbols N1 carrying the data and the number of symbols carrying the pilot N2, and the number of encoded bits and the number of QAM symbols allocated to each subframe are not described herein.

In addition, an embodiment of the present application further provides a data sending device, as shown in FIG. 8, comprising:

The encoding module 81 is configured to perform channel coding on a transmission information block of length K bits to obtain a coded sequence of length S bits;

The first transmission module 82 is configured to transmit a coded sequence of length S bits on corresponding channel resources in the M subframes, where M≥1;

The second transmission module 83 is configured to transmit Qi QAM symbols {q_1, q_2, . . . , q_Qi} in the i-th subframe of the M subframes, and the Qi QAM symbols are Ki in the encoded sequence of length S bits. Bits are obtained, 1 ≤ i ≤ M;

The third transmission module 84 is configured to transmit a pilot signal on at least one symbol of the i-th subframe, where the pilot signal is a CAZAC sequence.

Wherein, the above channel coding includes at least one of the following:

Turbo coding, convolutional coding, RM coding.

The QAM symbol of the present application is obtained by using at least one of the following modulation methods, including:

BPSK, QPSK, 16QAM, 64QAM, 256QAM.

In addition, the apparatus may further include a scrambling module (not shown) for scrambling the encoded bit sequence before modulating the QAM symbol, wherein the encoded bit sequence is encoded with a length of S bits. The sequence, or Ki bits in the encoded sequence of length S bits corresponding to the QAM symbols.

The second transmission module 83 is further configured to transmit Qi=N1 QAM symbols in the i-th subframe of the M subframes, and each of the QAM symbols q_j is used to transmit data in the i-th subframe. Transmitted on one of the symbols, where N1 is a preset parameter.

In addition, the data transmitting apparatus of the present application may further include an arithmetic module (not shown) for multiplying each QAM symbol q_j by a CAZAC sequence of length A to obtain a signal of length A, wherein A is preset Parameter

A mapping module (not shown) is configured to map the signal of length A onto the A subcarriers on one of the N1 symbols used to transmit data in the i-th subframe.

The second transmission module 83 may be further configured to transmit Qi=1 QAM symbols in the i-th subframe of the M subframes, where the QAM symbols are used in the N1 subframes for transmitting data in the i-th subframe. Transmission, where N1 is a preset parameter.

The operation module may be further configured to: multiply a QAM symbol q_j by a CAZAC sequence of length A in a symbol for transmitting data in a first slot of the i-th subframe, and perform a length of

Orthogonal sequence spread spectrum, resulting in a length of

Signal, where A is a preset parameter, and the mapping module is further used to set the length to

Signal is mapped to the first time slot of the i-th subframe

A subcarriers on the symbol used to transmit data;

In addition, the operation module is further configured to: a QAM symbol q_j is multiplied by a CAZAC sequence of length A in a symbol for transmitting data in a second slot of the i-th subframe, and the length is

Orthogonal sequence spread spectrum, resulting in a length of

Signal, mapping module is further used to set the length to

Signal is mapped to the second time slot of the i-th subframe

A subcarriers on the symbol used to transmit data.

In the foregoing apparatus, the third transmission module 84 is configured to transmit a pilot signal on the N2 symbols of the i-th subframe, where the pilot signal is a CAZAC sequence, where N2 is a preset parameter, and N1+N2 is equal to The total number of symbols in the i-th subframe; or

Transmitting a pilot signal on N2 symbols of the i-th subframe, the pilot signal is obtained by spreading each element in a CAZAC sequence by an orthogonal sequence of length N2/2, and N2 is a preset parameter. And N1+N2 is equal to the total number of symbols in the i-th subframe.

According to still another aspect of the embodiments of the present application, a data receiving apparatus is provided. The apparatus, as shown in FIG. 9, includes:

The receiving module 91 is configured to receive a signal on a corresponding channel resource in the M subframes, and obtain an S-bit encoded sequence transmitted in the M subframes, where M≥1;

The decoding module 92 is configured to perform channel decoding on the S-bit encoded sequence to obtain a transmission information block having a length of K bits;

a first obtaining module 93, configured to acquire, according to an i-th subframe of the M subframes, Q QAM symbols {q_1, q_2, . . . , q_Qi}, where the Q QAM symbols are encoded by a length of S bits. Bits are obtained, 1 ≤ i ≤ M;

Wherein each QAM symbol q_j, 1≤j≤Qi, is transmitted on at least one symbol for transmitting data of the i-th subframe, and the signal transmitted on the symbol for transmitting data is a CAZAC sequence and a QAM symbol q_j Product

The second obtaining module 94 is configured to acquire a pilot signal on at least one symbol of the i-th subframe, where the pilot signal is a CAZAC sequence.

Wherein, the above channel coding includes at least one of the following:

Turbo coding, convolutional coding, RM coding.

BPSK, QPSK, 16QAM, 64QAM, 256QAM.

In addition, the data receiving apparatus may further include: a descrambling module (not shown), configured to descramble the encoded bit sequence before performing channel decoding on the S-bit encoded sequence, wherein the encoded bit sequence is The coded sequence of length S bits or Ki bits in the coded sequence of length S bits corresponding to the QAM symbols.

In addition, the first obtaining module 93 may be further configured to: acquire, in the i-th subframe of the M subframes, Qi=N1 QAM symbols, and each of the QAM symbols q_j in the i-th subframe is used to transmit data. The symbol is transmitted on a symbol, where N1 is a preset parameter.

Therefore, the first obtaining module 93 acquires one of the Q QAM symbols q_j based on the signal.

In addition, the first obtaining module 93 may be further configured to: acquire, in the i-th subframe of the M subframes, a Q=1 symbol, where the QAM symbol is used on the N1 symbol for transmitting data in the i-th subframe. Transmission, where N1 is a preset parameter.

Wherein, in the first time slot of the i-th subframe

The length of the orthogonal sequence spread is

Signal, where A is a preset parameter;

In the second time slot of the i-th subframe

Orthogonal sequence spread spectrum, the length obtained is

signal of;

Therefore, the first obtaining module 93 can also acquire a QAM symbol by using the acquired signal.

In addition, in the data receiving apparatus of the present application, the second obtaining module 94 may further be configured to acquire a pilot signal on the N2 symbols of the i-th subframe, where the pilot signal is a CAZAC sequence, where N2 is preset. a predetermined parameter, and N1+N2 is equal to the total number of symbols in the i-th subframe; or

Obtaining a pilot signal on N2 symbols of the i-th subframe, wherein the pilot signal is obtained by spreading each element in a CAZAC sequence by an orthogonal sequence of length N2/2 in each slot, N2 For pre-set parameters, And N1+N2 is equal to the total number of symbols in the i-th subframe.

In addition, the corresponding channel resources in each M subframe of the present application include at least one of the following:

In accordance with still another aspect of the present application, a base station is provided that includes a processor 1000, a transceiver 1010, and a memory 1020, as shown in FIG.

The memory 1020 is configured to save data used by the processor 1000 when performing operations;

The transceiver 1010 is configured to receive and transmit data under the control of the processor 1000.

For downstream data transmission, the processor 1000 is configured to read a program from the memory 1020 and perform the following process:

In FIG. 10, the bus architecture may include any number of interconnected buses and bridges, specifically linked by one or more processors represented by processor 1000 and various circuits of memory represented by memory 1020. The bus architecture can also link various other circuits such as peripherals, voltage regulators, and power management circuits, which are well known in the art and, therefore, will not be further described herein. The bus interface provides an interface. The transceiver 1010 can be a plurality of components, including a transmitter and a receiver, providing means for communicating with various other devices on a transmission medium. The processor 1000 is responsible for managing the bus architecture and general processing, and the memory 1020 can store data used by the processor 1000 in performing operations.

Optionally, the channel coding includes at least one of the following:

Turbo coding, convolutional coding, RM coding.

BPSK, QPSK, 16QAM, 64QAM, 256QAM.

Optionally, the processor 1000 is further configured to read the program from the memory 1020, and perform the following process:

Optionally, the processor 1000 is further configured to read the program from the memory 1020, and perform the following process: Transmitting Qi=N1 QAM symbols in the i-th subframe of the M subframes, and each QAM symbol q_j is transmitted on one of the N1 symbols for transmitting data in the i-th subframe, where , N1 is a preset parameter.

Optionally, the processor 1000 is further configured to read the program from the memory 1020, and perform the following process: transmitting Qi=1 QAM symbols in the i-th subframe of the M subframes, where the QAM symbols are in the N1 of the i-th subframe is transmitted on the symbol for transmitting data, where N1 is a preset parameter.

Orthogonal sequence spread spectrum, resulting in a length of

Signal, where A is a preset parameter;

The length is

Signal is mapped to the first time slot of the i-th subframe

A subcarriers on the symbol used to transmit data;

Orthogonal sequence spread spectrum, resulting in a length of

signal of;

The length is

Signal is mapped to the second time slot of the i-th subframe

A subcarriers on the symbol used to transmit data.

Based on any of the foregoing base station embodiments, optionally, the processor 1000 is further configured to read a program from the memory 1020, and perform the following process: transmitting a pilot signal on the N2 symbols of the i-th subframe, the pilot The signal is a CAZAC sequence, where N2 is a preset parameter, and N1+N2 is equal to the total number of symbols in the i-th subframe; or

For uplink data transfer, the processor 1000 is configured to read a program from the memory 1020 and perform the following process:

Optionally, the channel coding includes at least one of the following:

Turbo coding, convolutional coding, RM coding.

BPSK, QPSK, 16QAM, 64QAM, 256QAM.

Optionally, the processor 1000 is further configured to read the program from the memory 1020, and perform the following process: acquiring Qi=N1 QAM symbols in the i-th subframe of the M subframes, where each QAM symbol q_j is in the Transmitting on one of the N1 symbols for transmitting data in the i-th subframe, where N1 is a preset parameter.

Based on the signal, one of the Q QAM symbols q_j is acquired.

Optionally, the processor 1000 is further configured to: read the program from the memory 1020, and perform the following process: acquiring Qi=1 QAM symbols in the i-th subframe of the M subframes, where the QAM symbols are in the N1 of the i-th subframe is transmitted on the symbol for transmitting data, where N1 is a preset parameter.

Optionally, in the first time slot of the i-th subframe

The length of the orthogonal sequence spread is

Signal, where A is a preset parameter;

In the second time slot of the i-th subframe

Orthogonal sequence spread spectrum, the length obtained is

signal of;

The one QAM symbol is acquired based on the acquired signal.

Based on any of the foregoing base station embodiments for uplink data transmission, optionally, the processor 1000 is further configured to read a program from the memory 1020, and perform the following process: acquiring a pilot signal on the N2 symbols of the i-th subframe The pilot signal is a CAZAC sequence, where N2 is a preset parameter, and N1+N2 is equal to the total number of symbols in the i-th subframe; or

According to still another aspect of the present application, a terminal is provided. As shown in FIG. 11, the terminal includes a processor 1100, a transceiver 1110, and a memory 1120.

The memory 1120 is configured to save data used by the processor 1100 to perform operations;

The transceiver 1110 is configured to receive and transmit data under the control of the processor 1100.

For upstream data transmission, the processor 1100 is configured to read a program from the memory 1120 and perform the following process:

Wherein, in FIG. 11, the bus architecture can include any number of interconnected buses and bridges, specifically linked by one or more processors represented by processor 1100 and various circuits of memory represented by memory 1120. The bus architecture can also link various other circuits such as peripherals, voltage regulators, and power management circuits, which are well known in the art and, therefore, will not be further described herein. The bus interface provides an interface. The transceiver 1110 can be a plurality of components, including a transmitter and a receiver, providing means for communicating with various other devices on a transmission medium. For different user equipments, the user interface 1130 may also be an interface capable of externally connecting the required devices, and connecting Devices include, but are not limited to, keypads, displays, speakers, microphones, joysticks, and the like.

Optionally, the channel coding includes at least one of the following:

Turbo coding, convolutional coding, RM coding.

BPSK, QPSK, 16QAM, 64QAM, 256QAM.

Optionally, the processor 1100 is further configured to read the program from the memory 1120, and perform the following process:

Optionally, the processor 1100 is further configured to read the program from the memory 1120, and perform the following process: transmitting Qi=N1 QAM symbols in the i-th subframe of the M subframes, where each QAM symbol q_j is in the Transmitting on one of the N1 symbols for transmitting data in the i-th subframe, where N1 is a preset parameter.

Optionally, the processor 1100 is further configured to read the program from the memory 1120, and perform the following process: transmitting Qi=1 QAM symbols in the i-th subframe of the M subframes, where the QAM symbols are in the N1 of the i-th subframe is transmitted on the symbol for transmitting data, where N1 is a preset parameter.

Orthogonal sequence spread spectrum, resulting in a length of

Signal, where A is a preset parameter;

The length is

Signal is mapped to the first time slot of the i-th subframe

A subcarriers on the symbol used to transmit data;

Orthogonal sequence spread spectrum, resulting in a length of

signal of;

The length is

Signal is mapped to the second time slot of the i-th subframe

A subcarriers on the symbol used to transmit data.

Based on any of the foregoing terminal embodiments, the processor 1100 is further configured to read from the memory 1120. And performing the following process: transmitting a pilot signal on the N2 symbols of the i-th subframe, the pilot signal is a CAZAC sequence, where N2 is a preset parameter, and N1+N2 is equal to the i-th sub- The total number of symbols in the frame; or

For downstream data transmission, the processor 1100 is configured to read a program from the memory 1120 and perform the following process:

Optionally, the channel coding includes at least one of the following:

Turbo coding, convolutional coding, RM coding.

BPSK, QPSK, 16QAM, 64QAM, 256QAM.

Optionally, the processor 1100 is further configured to read the program from the memory 1120, and perform the following process: acquiring Qi=N1 QAM symbols in the i-th subframe of the M subframes, where each QAM symbol q_j is in the Transmitting on one of the N1 symbols for transmitting data in the i-th subframe, where N1 is a preset parameter.

Optionally, A on one of the N1 symbols used to transmit data in the i-th subframe The signals obtained on the subcarriers are: a signal of length A obtained by multiplying each QAM symbol q_j by a CAZAC sequence of length A, where A is a preset parameter;

Based on the signal, one of the Q QAM symbols q_j is acquired.

Optionally, the processor 1100 is further configured to: read the program from the memory 1120, and perform the following process: acquiring Qi=1 QAM symbols in the i-th subframe of the M subframes, where the QAM symbols are in the N1 of the i-th subframe is transmitted on the symbol for transmitting data, where N1 is a preset parameter.

Optionally, in the first time slot of the i-th subframe

The length of the orthogonal sequence spread is Signal, where A is a preset parameter;

In the second time slot of the i-th subframe

Orthogonal sequence spread spectrum, the length obtained is

signal of;

The one QAM symbol is acquired based on the acquired signal.

Based on any of the foregoing terminal embodiments for downlink data transmission, optionally, the processor 1100 is further configured to read a program from the memory 1120, and perform the following process: acquiring a pilot signal on the N2 symbols of the ith subframe The pilot signal is a CAZAC sequence, where N2 is a preset parameter, and N1+N2 is equal to the total number of symbols in the i-th subframe; or

In summary, with the above technical solution of the present application, the present application can greatly improve the transmission by designing a new transmission channel structure, that is, a TB performs Turbo coding and packet transmission, and a data transmission structure transmitted through a cover sequence in multiple subframes. Performance to reduce the number of repeated transfers and save power efficiently.

The basic principles of the present application have been described above in connection with the specific embodiments, but it should be noted that those skilled in the art can understand that all or any of the steps or components of the method and apparatus of the present application can be in any computing device. In a network (including a processor, a storage medium, etc.) or a computing device, implemented in hardware, firmware, software, or a combination thereof, which is essential to those of ordinary skill in the art in the context of reading the description of the present application. Programming skills can be achieved.

It should also be noted that in the apparatus and method of the present application, it is apparent that the various components or steps may be decomposed and/or recombined. These decompositions and/or recombinations are considered equivalents of the present application. Also, the steps of performing the series of processes described above may naturally be performed in chronological order in the order illustrated, but need not necessarily be performed in chronological order. Certain steps may be performed in parallel or independently of one another.

The present invention and its advantages are to be understood in detail, and it is understood that various changes, substitutions and alterations can be made without departing from the spirit and scope of the invention as defined by the appended claims. Furthermore, the term "comprising", "comprising", or any other variants thereof, is intended to encompass a non-exclusive inclusion, such that a process, method, article, or device that includes a plurality of elements includes not only those elements but also Other elements that are explicitly listed, or include elements inherent to such a process, method, article, or device. An element that is defined by the phrase "comprising a ..." does not exclude the presence of additional elements in the process, method, article, or device that comprises the element.

Claims

A data sending method, comprising:

Channel coding the transmission information block of length K bits to obtain a coded sequence of length S bits;

Transmitting the encoded sequence of length S bits on corresponding channel resources in M subframes, where M≥1;

Transmitting Q QAM symbols {q_1, q_2, . . . , q_Qi} in the i-th subframe of the M subframes, the Qi QAM symbols being Ki bits in the encoded sequence of length S bits Obtaining that 1≤i≤M; each QAM symbol q_j, 1≤j≤Qi, transmitted on at least one symbol for transmitting data of the i-th subframe, the symbol for transmitting data The signal is the product of a CAZAC sequence and the QAM symbol q_j;

A pilot signal is transmitted on at least one symbol of the i-th subframe, the pilot signal being a CAZAC sequence.
The method of claim 1 wherein said channel coding comprises at least one of:

Turbo coding, convolutional coding, RM coding.
The method according to claim 1, wherein the QAM symbol is obtained by a modulation method of at least one of the following, comprising:

BPSK, QPSK, 16QAM, 64QAM, 256QAM.
The method of claim 1 prior to modulating said QAM symbols, comprising:

Encoding the encoded bit sequence, wherein the encoded bit sequence is the encoded sequence of length S bits, or is in the encoded sequence of length S bits corresponding to the QAM symbol Ki bits.
The method according to claim 1, wherein the Q QAM symbols {q_1, q_2, ..., q_Qi} are transmitted in the i-th subframe of the M subframes, including:

Transmitting Qi=N1 QAM symbols in an i-th subframe of the M subframes, and each QAM symbol q_j is transmitted on one of N1 symbols for transmitting data in the i-th subframe, Among them, N1 is a preset parameter.
The method according to claim 5, characterized in that each QAM symbol q_j, 1 ≤ j ≤ Qi, is transmitted on at least one symbol of the ith subframe for transmitting data:

Multiplying each QAM symbol q_j by a CAZAC sequence of length A to obtain a signal of length A, where A is a preset parameter;

Mapping the signal of length A to one of N1 symbols for transmitting data in the i-th subframe On the A subcarriers on the symbol.
The method according to claim 1, wherein the Q QAM symbols {q_1, q_2, ..., q_Qi} are transmitted in the i-th subframe of the M subframes, including:

Transmitting Qi=1 QAM symbols in an i-th subframe of the M subframes, where the QAM symbols are transmitted on N1 symbols for transmitting data in the i-th subframe, where N1 is a pre- Set parameters.
The method according to claim 7, characterized in that each QAM symbol q_j, 1 ≤ j ≤ Qi, is transmitted on at least one symbol for transmitting data of the ith subframe:

A QAM symbol q_j is multiplied by a CAZAC sequence of length A for each symbol used to transmit data in the first slot of the i-th subframe and is of length
Orthogonal sequence spread spectrum, resulting in a length of
Signal, where A is a preset parameter;

The length is
Signal is mapped to the first time slot of the i-th subframe
A subcarriers on the symbol used to transmit data;

The one QAM symbol q_j is multiplied by a CAZAC sequence of length A on a symbol for transmitting data in a second slot of the i-th subframe and is of length
Orthogonal sequence spread spectrum, resulting in a length of
signal of;

The length is
Signal is mapped to the second time slot of the i-th subframe
A subcarriers on the symbol used to transmit data.
The method according to any one of claims 1-8, wherein a pilot signal is transmitted on at least one symbol of the ith subframe, the pilot signal being a CAZAC sequence, comprising:

Transmitting a pilot signal on the N2 symbols of the i-th subframe, where the pilot signal is a CAZAC sequence, where N2 is a preset parameter, and N1+N2 is equal to the total number of symbols in the i-th subframe; or

Transmitting a pilot signal on N2 symbols of the i-th subframe, the pilot signal is obtained by spreading each element in a CAZAC sequence by an orthogonal sequence of length N2/2, and N2 is preset The parameters are fixed, and N1+N2 is equal to the total number of symbols in the i-th subframe.
The method according to claim 1, wherein the corresponding channel resources in the M subframes comprise at least one of the following:

PUCCH format 1, PUCCH format 1a, PUCCH format 1b, PUCCH format 2, PUCCH format 2a, PUCCH format 2b resources.
A data receiving method, comprising:

Receiving a signal on a corresponding channel resource in the M subframes, obtaining an S-bit encoded sequence transmitted in the M subframes, where M≥1;

Performing channel decoding on the S-bit encoded sequence to obtain a transmission information block of length K bits;

Acquiring Qi QAM symbols {q_1, q_2, . . . , q_Qi} in the i-th subframe of the M subframes, Said QAM symbols are obtained by Ki bits in the encoded sequence of length S bits, 1 ≤ i ≤ M;

Each QAM symbol q_j, 1 ≤ j ≤ Qii, transmitted on at least one symbol for transmitting data of the ith subframe, and the signal transmitted on the symbol for transmitting data is a CAZAC sequence and a QAM symbol The product of q_j;

A pilot signal is acquired on at least one symbol of the i-th subframe, the pilot signal being a CAZAC sequence.
The method of claim 11 wherein said channel coding comprises at least one of:

Turbo coding, convolutional coding, RM coding.
The method according to claim 11, wherein the QAM symbol is obtained by a modulation method of at least one of the following, comprising:

BPSK, QPSK, 16QAM, 64QAM, 256QAM.
The method according to claim 11, wherein before performing channel decoding on the S-bit encoded sequence, the method comprises:

Decoding the encoded bit sequence, wherein the encoded bit sequence is the encoded sequence of length S bits, or is in the encoded sequence of length S bits corresponding to the QAM symbol Ki bits.
The method according to claim 11, wherein the Qi QAM symbols {q_1, q_2, ..., q_Qi} are obtained in the i-th subframe of the M subframes, including:

Acquiring Qi=N1 QAM symbols in the i-th subframe of the M subframes, and each QAM symbol q_j is transmitted on one of the N1 symbols for transmitting data in the i-th subframe, Among them, N1 is a preset parameter.
The method according to claim 15, characterized in that each QAM symbol q_j, 1 ≤ j ≤ Qi, is transmitted on at least one symbol of the ith subframe for transmitting data:

The signal obtained on the A subcarriers on one of the N1 symbols for transmitting data in the i-th subframe is: the length obtained by multiplying each QAM symbol q_j by the CAZAC sequence of length A is A signal, where A is a preset parameter;

Based on the signal, one of the Q QAM symbols q_j is acquired.
The method according to claim 11, wherein the Qi QAM symbols {q_1, q_2, ..., q_Qi} are obtained in the i-th subframe of the M subframes, including:

Obtaining Qi=1 QAM symbols in an i-th subframe of the M subframes, where the QAM symbols are transmitted on N1 symbols for transmitting data in the i-th subframe, where N1 is a pre- Set parameters.
The method according to claim 17, characterized in that each QAM symbol q_j, 1 ≤ j ≤ Qi, is transmitted on at least one symbol for transmitting data of the ith subframe:

In the first time slot of the i-th subframe
The signals acquired on the A subcarriers on the symbols used to transmit data are: one QAM symbol on each symbol for transmitting data in the first slot of the i-th subframe and the CAZAC sequence of length A Multiply and proceed to length
The length of the orthogonal sequence spread is
Signal, where A is a preset parameter;

In the second time slot of the i-th subframe
The signals acquired on the A subcarriers on the symbols used for transmitting data are: the one QAM symbol is on the symbol for transmitting data and the length A in the second slot of the i-th subframe. The CAZAC sequence is multiplied and the length is
Orthogonal sequence spread spectrum, the length obtained is
signal of;

The one QAM symbol is acquired based on the acquired signal.
The method according to any one of claims 11 to 18, wherein acquiring a pilot signal on at least one symbol of the i-th subframe comprises:

Acquiring a pilot signal on the N2 symbols of the i-th subframe, where the pilot signal is a CAZAC sequence, where N2 is a preset parameter, and N1+N2 is equal to the total number of symbols in the i-th subframe; or

Acquiring a pilot signal on the N2 symbols of the i-th subframe, wherein the pilot signal is an orthogonal sequence length of each element in a CAZAC sequence by using a length of N2/2 in each slot The frequency is obtained, N2 is a preset parameter, and N1+N2 is equal to the total number of symbols in the i-th subframe.
The method according to claim 11, wherein the corresponding channel resources in the M subframes comprise at least one of the following:

PUCCH format 1, PUCCH format 1a, PUCCH format 1b, PUCCH format 2, PUCCH format 2a, PUCCH format 2b resources.
A data transmitting device, comprising:

An encoding module, configured to perform channel coding on a transmission information block of length K bits, to obtain a coded sequence of length S bits;

a first transmission module, configured to transmit, after the corresponding channel resources in the M subframes, the encoded sequence of length S bits, where M≥1;

a second transmission module, configured to transmit Qi QAM symbols {q_1, q_2, . . . , q_Qi} in an i-th subframe of the M subframes, where the Qi QAM symbols are encoded by the S-bit length Ki bits in the post-sequence are obtained, 1 ≤ i ≤ M;

Wherein each QAM symbol q_j, 1≤j≤Qi, is transmitted on at least one symbol for transmitting data of the i-th subframe, and the signal transmitted on the symbol for transmitting data is a CAZAC sequence and The product of the QAM symbol q_j;

And a third transmission module, configured to transmit a pilot signal on at least one symbol of the i-th subframe, where the pilot signal is a CAZAC sequence.
The apparatus of claim 21 wherein said channel coding comprises at least one of:

Turbo coding, convolutional coding, RM coding.
The apparatus according to claim 21, wherein said QAM symbol is obtained by a modulation method of at least one of the following, comprising:

BPSK, QPSK, 16QAM, 64QAM, 256QAM.
The device according to claim 21, comprising:

a scrambling module, configured to scramble the encoded bit sequence before modulating the QAM symbol, wherein the encoded bit sequence is the encoded sequence of length S bits, or The length corresponding to the QAM symbol is Ki bits in the encoded sequence of S bits.
The apparatus according to claim 21, wherein said second transmission module is further configured to transmit Qi = N1 QAM symbols in an i-th subframe of said M subframes, each QAM symbol q_j being And transmitting N1 one of the symbols for transmitting data in the i-th subframe, wherein N1 is a preset parameter.
The device of claim 25, comprising:

An arithmetic module, configured to multiply each QAM symbol q_j by a CAZAC sequence of length A to obtain a signal of length A, wherein A is a preset parameter;

And a mapping module, configured to map the signal of length A to the A subcarriers on one of the N1 symbols used for transmitting data in the i-th subframe.
The apparatus according to claim 21, wherein said second transmission module is further configured to transmit Qi=1 QAM symbols in an i-th subframe of said M subframes, said QAM symbol being in the N1 of the i-th subframe is transmitted on the symbol for transmitting data, where N1 is a preset parameter.
The apparatus according to claim 27, wherein said operation module is further configured to: a QAM symbol q_j in each of the first slots of the i-th subframe for transmitting data on a symbol and having a length of The CAZAC sequence of A is multiplied and the length is
Orthogonal sequence spread spectrum, resulting in a length of
Signal, where A is a preset parameter;

The mapping module is further configured to:
Signal is mapped to the first time slot of the i-th subframe
A subcarriers on the symbol used to transmit data;

The operation module is further configured to: the one QAM symbol q_j is multiplied by a CAZAC sequence of length A in a symbol for transmitting data in a second slot of the i-th subframe, and the length is
Orthogonal sequence spread spectrum, resulting in a length of
signal of;

The mapping module is further configured to:
Signal is mapped to the second time slot of the i-th subframe
A subcarriers on the symbol used to transmit data.
The apparatus according to any one of claims 21-28, wherein said third transmission module is Transmitting a pilot signal on the N2 symbols of the i-th subframe, the pilot signal is a CAZAC sequence, where N2 is a preset parameter, and N1+N2 is equal to a symbol in the i-th subframe Total; or

Transmitting a pilot signal on N2 symbols of the i-th subframe, the pilot signal is obtained by spreading each element in a CAZAC sequence by an orthogonal sequence of length N2/2, and N2 is preset The parameters are fixed, and N1+N2 is equal to the total number of symbols in the i-th subframe.
The apparatus according to claim 21, wherein the corresponding channel resources in the M subframes comprise at least one of the following:

PUCCH format 1, PUCCH format 1a, PUCCH format 1b, PUCCH format 2, PUCCH format 2a, PUCCH format 2b resources.
A data receiving device, comprising:

a receiving module, configured to receive a signal on a corresponding channel resource in the M subframes, to obtain an S-bit encoded sequence transmitted in the M subframes, where M≥1;

a decoding module, configured to perform channel decoding on the S-bit encoded sequence to obtain a transmission information block of length K bits;

a first acquiring module, configured to acquire, in an i-th subframe of the M subframes, Q QAM symbols {q_1, q_2, . . . , q_Qi}, where the Qi QAM symbols are encoded by the S-bit length Ki bits in the post-sequence are obtained, 1 ≤ i ≤ M;

Wherein each QAM symbol q_j, 1≤j≤Qi, is transmitted on at least one symbol for transmitting data of the i-th subframe, and the signal transmitted on the symbol for transmitting data is a CAZAC sequence and The product of the QAM symbol q_j;

And a second acquiring module, configured to acquire a pilot signal on at least one symbol of the i-th subframe, where the pilot signal is a CAZAC sequence.
The apparatus of claim 31 wherein said channel coding comprises at least one of:

Turbo coding, convolutional coding, RM coding.
The apparatus according to claim 31, wherein the QAM symbol is obtained by a modulation method of at least one of the following, comprising:

BPSK, QPSK, 16QAM, 64QAM, 256QAM.
The device of claim 31, comprising:

a descrambling module, configured to descramble the encoded bit sequence before performing channel decoding on the S-bit encoded sequence, wherein the encoded bit sequence is the encoded sequence of length S bits, Or Ki bits in the encoded sequence of length S bits corresponding to the QAM symbols.
The apparatus according to claim 31, wherein the first obtaining module is further configured to: obtain, in an i-th subframe of the M subframes, Qi=N1 QAM symbols, where each QAM symbol q_j is And transmitting N1 one of the symbols for transmitting data in the i-th subframe, wherein N1 is a preset parameter.
The apparatus according to claim 35, wherein the signals acquired on the A subcarriers on one of the N1 symbols for transmitting data in the i-th subframe are: each QAM symbol q_j a signal of length A obtained by multiplying a CAZAC sequence of length A, wherein A is a preset parameter;

The first acquiring module acquires one QAM symbol q_j of the Qi QAM symbols based on the signal.
The apparatus according to claim 31, wherein the first obtaining module is further configured to acquire Qi=1 QAM symbols in an i-th subframe of the M subframes, where the QAM symbol is in the N1 of the i-th subframe is transmitted on the symbol for transmitting data, where N1 is a preset parameter.
The apparatus according to claim 37, wherein in said first time slot of said i-th subframe
The signals acquired on the A subcarriers on the symbols used to transmit data are: one QAM symbol on each symbol for transmitting data in the first slot of the i-th subframe and the CAZAC sequence of length A Multiply and proceed to length
The length of the orthogonal sequence spread is
Signal, where A is a preset parameter;

In the second time slot of the i-th subframe
The signals acquired on the A subcarriers on the symbols used for transmitting data are: the one QAM symbol is on the symbol for transmitting data and the length A in the second slot of the i-th subframe. The CAZAC sequence is multiplied and the length is
Orthogonal sequence spread spectrum, the length obtained is
signal of;

The first acquiring module acquires the one QAM symbol based on the acquired signal.
The apparatus according to any one of claims 31 to 38, wherein the second obtaining module is further configured to acquire a pilot signal on the N2 symbols of the i-th subframe, the pilot signal Is a CAZAC sequence, where N2 is a preset parameter, and N1+N2 is equal to the total number of symbols in the i-th subframe; or

Acquiring a pilot signal on the N2 symbols of the i-th subframe, wherein the pilot signal is an orthogonal sequence length of each element in a CAZAC sequence by using a length of N2/2 in each slot The frequency is obtained, N2 is a preset parameter, and N1+N2 is equal to the total number of symbols in the i-th subframe.
The apparatus according to claim 31, wherein said corresponding channel resource in each subframe of M comprises at least one of the following:

PUCCH format 1, PUCCH format 1a, PUCCH format 1b, PUCCH format 2, PUCCH format 2a, PUCCH format 2b resources.