CN109952726B

CN109952726B - Method and device used in terminal and base station for wireless communication

Info

Publication number: CN109952726B
Application number: CN201780068874.2A
Authority: CN
Inventors: 张晓博
Original assignee: Shanghai Langbo Communication Technology Co Ltd
Current assignee: Shanghai Langbo Communication Technology Co Ltd
Priority date: 2017-02-08
Filing date: 2017-02-08
Publication date: 2021-10-29
Anticipated expiration: 2037-02-08
Also published as: WO2018145256A1; CN109952726A

Abstract

The invention discloses a method and a device used in a terminal, a base station and wireless communication. The first node firstly generates a first bit block and carries out channel coding; the first wireless signal is then transmitted. Wherein bits in the second block of bits are used to generate bits in the first block of bits. The first bit block comprises a first sub-block of bits, the bits in the second block of bits being used for the input of the channel coding. Some or all of the symbols in a first symbol block generated by performing modulation mapping on the channel coded output are used to generate the first wireless signal. The constellation pattern corresponding to at least one symbol in the first symbol block is associated with the first bit sub-block. The method of the invention can reduce the false alarm probability of CRC and avoid the extra redundancy caused by the increase of the number of CRC bits.

Description

Method and device used in terminal and base station for wireless communication

Technical Field

The present invention relates to a method and an apparatus for transmitting a radio signal in a wireless communication system, and more particularly, to a method and an apparatus for transmitting a radio signal in a wireless communication system supporting channel coding.

Background

In a conventional LTE (Long Term Evolution) system, Cyclic Redundancy Check (CRC) plays an important role in error checking and identification of a target receiver. The length of the CRC bits determines the false alarm probability of the error check and identification. Since the false alarm probability, especially the false alarm probability of the control channel, directly affects the performance and efficiency of the wireless communication system, controlling the false alarm probability to a sufficiently low level is one of the basic requirements of the 5G system design.

In a 5G system, the amount of control signaling received by a UE (User Equipment) per unit time may be larger than in a conventional LTE system, and therefore a lower probability of false alarm of the control channel is required. The most straightforward way to reduce the false alarm probability is to increase the length of the check bits (which may be CRC or Parity Code, etc.). However, this causes additional overhead and reduces the transmission efficiency of the control channel. How to reduce the false alarm probability of the control channel without reducing the transmission efficiency of the control channel is a problem to be solved.

Disclosure of Invention

The inventor finds that, on the premise of increasing the number of parity bits, if the increased parity bits are not directly transmitted, the constellation pattern used by the control channel is adjusted by using the increased parity bits, so that the transmission efficiency of the control channel is not reduced, and a lower false alarm probability caused by the increase of the number of parity bits can be obtained. The increased check bits can be recovered at the receiving end by trying all possible constellation patterns and finding the one with the maximum likelihood probability.

In view of the above discovery, the present invention discloses a solution. It should be noted that although the initial motivation of the present invention is for control channels, the present invention is also applicable to other physical layer channels. Without conflict, embodiments and features in embodiments in a first node of the present application may be applied to a second node and vice versa. The embodiments and features of the embodiments of the present application may be combined with each other arbitrarily without conflict.

The invention discloses a method in a first node used for wireless communication, which comprises the following steps:

-a step a. generating a first block of bits, performing channel coding;

-step b.

Wherein bits in the second block of bits are used to generate bits in the first block of bits. The first bit block comprises a first sub-block of bits, the bits in the second block of bits being used for the input of the channel coding. Some or all of the symbols in a first symbol block generated by performing modulation mapping on the channel coded output are used to generate the first wireless signal. The constellation pattern corresponding to at least one symbol in the first symbol block is associated with the first bit sub-block. The first bit block, the second bit block, and the first bit sub-block respectively include a positive integer number of bits. The first block of symbols includes a positive integer number of symbols.

As an embodiment, the above method has the advantage that the first block of bits may correspond to a block of CRC bits of the second block of bits. A part of the CRC bit block, i.e., the first bit sub-block, is not used as an input of the channel coding as in the conventional manner, but is used to adjust a constellation pattern corresponding to the symbols in the first symbol block, so that redundancy caused by the CRC bit block in the first wireless signal can be reduced, and the transmission efficiency of the first wireless signal can be improved. Or equivalently, the length of the CRC bit block may be increased to reduce the false alarm probability of the first wireless signal while maintaining the transmission efficiency of the first wireless signal.

For one embodiment, the channel coding includes rate matching.

As an embodiment, Constellation patterns (Constellation patterns) corresponding to a part of the symbols in the first symbol block are related to the first bit sub-block, and Constellation patterns corresponding to the rest of the symbols in the first symbol block are not related to the first bit sub-block.

As an embodiment, the constellation patterns corresponding to all symbols in the first symbol block are related to the first bit sub-block.

As a sub-embodiment of the foregoing embodiment, the constellation patterns corresponding to all the symbols in the first symbol block are the same.

As a sub-embodiment of the foregoing embodiment, at least two symbols in the first symbol block have different constellation patterns.

As an embodiment, the symbols in the first symbol block are divided into Q symbol groups, where a symbol group includes a positive integer number of the symbols, the constellation patterns corresponding to the symbols in each symbol group are the same, when Q is greater than 1, the constellation patterns corresponding to the symbols in different symbol groups are different, and Q is a positive integer.

As a sub-implementation of the foregoing embodiment, a constellation pattern corresponding to a symbol in Q1 symbol groups in the Q symbol groups is correlated with the first bit sub-block, a constellation pattern corresponding to a symbol in the symbol groups in the Q symbol groups that do not belong to the Q1 symbol groups is uncorrelated with the first bit sub-block, and Q1 is a positive integer less than or equal to Q.

As a sub-embodiment of the above embodiment, the Q1 is equal to the Q.

As a sub-embodiment of the above embodiment, Q is greater than 1 and Q1 is equal to Q-1.

As an embodiment, the Association (Association) between the constellation pattern corresponding to the symbols in the Q1 symbol groups and the first bit sub-block is default (i.e. configuration without downlink signaling).

As an embodiment, for any symbol in the first symbol block, the number of Constellation points (Constellation points) included in a Constellation pattern corresponding to the any symbol is independent of the first bit sub-block.

As an embodiment, the number of constellation points included in the constellation pattern corresponding to all symbols in the first symbol block is the same.

As an embodiment, the constellation pattern does not comprise the number of constellation points.

As an embodiment, for any of the symbols in the first symbol block, the corresponding constellation pattern is obtained by rotating X-qam (quadrature Amplitude modulation) by Y degrees, where X is a positive integer power of 2, and an absolute value of Y is equal to or greater than 0.

As one embodiment, the X is the same for all symbols in the first symbol block

As an embodiment, the Y is related to the first sub-block of bits.

As an embodiment, Y corresponding to symbols in the same symbol group is the same, and Y corresponding to symbols in different symbol groups is different.

As an embodiment, for any of said symbols in said Q1 symbol groups, said first sub-block of bits is used to determine said Y to which said any of said symbols corresponds.

As an embodiment, any symbol in the symbol groups of the Q symbol groups that do not belong to the Q1 symbol groups corresponds to a constellation pattern that is X-QAM, where X is a positive integer power of 2.

As an embodiment, the first sub-block of bits is used to determine a first sequence comprising Q elements, the Q elements being in one-to-one correspondence with the Q symbol groups, any one of the elements in the Q elements indicating the Y for which a symbol in the corresponding symbol group corresponds.

As a sub-embodiment of the above embodiment, the first sequence belongs to a first sequence set, the first sequence set includes a positive integer number of sequences, and the first bit sub-block indicates an index of the first sequence in the first sequence set.

As a sub-embodiment of the foregoing embodiment, the first bit sub-block is a binary sequence corresponding to an index of the first sequence in the first sequence set.

As an embodiment, X is equal to 4, and for any of the symbols in the first symbol block, the corresponding constellation pattern is obtained by rotating qpsk (quadrature Phase Shift keying) by Y degrees.

As an embodiment, the output of the channel coding is independent of the first sub-block of bits.

As an embodiment, the part of the first bit block not belonging to the first bit sub-block is used for the input of the channel coding.

As an embodiment, the channel coded input comprises { all bits in the second bit block, all bits in the first bit block that do not belong to the first bit sub-block, all bits in a third bit block }, the values of all bits in the third bit block being predetermined.

As an embodiment, all bits in the second bit block, all bits in the first bit block that do not belong to the first bit sub-block constitute the input of the channel coding.

As an embodiment, the number of bits comprised in the first bit sub-block is smaller than the number of bits comprised in the first bit block.

As an embodiment, the bits in the first bit block are arranged sequentially, and the bits in the second bit block are arranged sequentially.

As an embodiment, the bits in the first bit sub-block are arranged sequentially.

As an embodiment, the positions of the bits in the first bit sub-block in the first bit block are consecutive.

As an embodiment, the positions of the bits in the first bit sub-block in the first bit block are discrete.

As an embodiment, the symbols in the first symbol block are arranged sequentially.

As an embodiment, the first symbol block is an output of the channel-coded output after sequentially passing through a Scrambling (Scrambling) and a Modulation Mapper (Modulation Mapper).

As one embodiment, all symbols in the first symbol block are used to generate the first wireless signal.

As an embodiment, a partial symbol in the first symbol block and a second symbol block are used to generate the first wireless signal.

As a sub-embodiment of the above embodiment, the second block of symbols comprises a reference signal.

As a sub-embodiment of the above embodiment, the second symbol block includes CSI-RS (Channel State Information references Signals).

As a sub-embodiment of the above embodiment, the second symbol block is independent of the first symbol block.

As an embodiment, the first radio signal is an output of all symbols in the first symbol block after sequentially passing through a Layer Mapper (Layer Mapper), a Precoding (Precoding), a Resource Element Mapper (Resource Element Mapper), and a wideband symbol Generation (Generation).

As an embodiment, the first wireless signal is an output of the partial symbols in the first symbol block and the second symbol block after the occurrence of the wideband symbol sequentially through a layer mapper, a precoding, a resource element mapper.

As an embodiment, the first wireless signal is an output of all symbols in the first symbol block after sequentially passing through a layer mapper, a conversion precoder (for generating a complex-valued signal), a precoding, a resource element mapper, and a wideband symbol generation.

As an embodiment, the first wireless signal is an output of the partial symbols in the first symbol block and the second symbol block after sequentially passing through a layer mapper, a conversion precoder, a precoding, a resource element mapper, and a wideband symbol generation.

As an embodiment, the wideband symbol is an OFDM (Orthogonal Frequency Division Multiplexing) symbol.

As an embodiment, the wideband symbol is an FBMC (Filter Bank Multi Carrier) symbol.

As an embodiment, in the step a, the first bit block is generated on a physical layer of the first node.

As an embodiment, the first block of bits is independent of bits outside the second block of bits.

As an embodiment, for any bit in the first bit block, the any bit is equal to the sum of a positive integer number of bits in the second bit block modulo 2.

As an embodiment, for any bit in the first bit block, the any bit is obtained by performing an exclusive or operation on a sum of positive integer number of bits in the second bit block modulo 2 and a corresponding bit in a scrambling code sequence.

As an embodiment, the first node is a base station, and in the step a, the first node generates the second bit block according to a scheduling result.

As an embodiment, the first node is a UE (User Equipment), and in the step a, the first node generates the second bit block according to a scheduling result of a serving base station.

As one embodiment, the channel coding is a polar code.

As an embodiment, the channel coding is one of { LDPC (Low Density Parity Check) code, turbo code, convolutional code }.

As an example, the first wireless signal is transmitted on a physical layer control channel (i.e., a physical layer channel that cannot be used to transmit physical layer data).

As one embodiment, the first wireless signal is transmitted on a physical layer data channel (i.e., a physical layer channel that can be used to carry physical layer data).

As an embodiment, the first node is a UE.

As a sub-embodiment of the foregoing embodiment, the first radio signal is transmitted on a PUCCH (Physical Uplink Control Channel).

As a sub-embodiment of the foregoing embodiment, the first wireless signal is transmitted on sPUCCH (short PUCCH).

As a sub-embodiment of the above-mentioned embodiment, the first wireless signal is transmitted on a PUSCH (Physical Uplink Shared CHannel).

As an embodiment, the first node is a base station.

As a sub-embodiment of the foregoing embodiment, the first radio signal is transmitted on a PDCCH (Physical Downlink Control Channel).

As a sub-embodiment of the foregoing embodiment, the first wireless signal is transmitted on an sPDCCH (short PDCCH).

As a sub-embodiment of the above-mentioned embodiment, the first wireless signal is transmitted on a PDSCH (Physical Downlink Shared CHannel).

In particular, according to one aspect of the invention, it is characterized in that said first bit block comprises a second bit sub-block, the bits of said second bit sub-block being used for the input of said channel coding.

As an embodiment, any one bit in the first bit block belongs to one of { the first bit sub-block, the second bit sub-block }.

As an embodiment, no one bit of the first bit block belongs to both the first bit sub-block and the second bit sub-block.

As an embodiment, the channel coded input comprises { all bits in the second bit block, all bits in the second bit sub-block, all bits in a third bit block }, the values of all bits in the third bit block being predetermined.

As a sub-embodiment of the above embodiment, all bits in the third bit block are 0.

As a sub-embodiment of the above embodiment, the bits in the third bit block are related to the identity of the first node.

As a sub-embodiment of the above embodiment, the identity of the first node is used to generate bits in the third block of bits.

As a sub-embodiment of the foregoing embodiment, the first node is a UE, and the Identifier of the first node is an RNTI (Radio Network Temporary Identifier).

As a sub-embodiment of the foregoing embodiment, the first node is a base station, and the Identifier of the first node is a PCI (Physical Cell Identifier).

As a sub-embodiment of the above embodiment, the bits in the third bit block are related to an identification of a target recipient of the first wireless signal.

As a sub-embodiment of the above embodiment, an identification of a target recipient of the first wireless signal is used to generate bits in the third block of bits.

As a sub-embodiment of the above-mentioned embodiment, the first node is a base station, and the identity of the target recipient of the first wireless signal is an RNTI.

As an embodiment, all bits in the second bit block, all bits in the second bit sub-block constitute the input of the channel coding.

As an embodiment, the number of bits in the second sub-block of bits is larger than the number of bits in the first sub-block of bits.

In particular, according to one aspect of the invention, a CRC bit block of the second bit block is used for generating the first bit block.

As an embodiment, the first block of bits is a CRC block of bits of the second block of bits.

As an embodiment, the first bit block is a bit block after a CRC bit block of the second bit block is scrambled.

As an embodiment, the scrambling code sequence used by the scrambling code is related to the identity of the first node.

As an embodiment, the scrambling code employs a scrambling code sequence related to an identity of a target recipient of the first wireless signal.

As one embodiment, the CRC bit block of the second bit block is an output of the second bit block through a CRC cyclic generator polynomial. The polynomial formed by the second bit block and the CRC bit block of the second bit block is divisible over GF (2) by the CRC cyclic generator polynomial, i.e. the remainder of the polynomial formed by the second bit block and the CRC bit block of the second bit block divided by the CRC cyclic generator polynomial is zero.

Specifically, according to one aspect of the present invention, the first symbol block includes Q symbol groups, and the constellation patterns corresponding to the symbols in each symbol group are the same. The Q is a positive integer greater than 1, and constellation patterns corresponding to any two different symbol groups in the Q symbol groups are different; or said Q is 1. The symbol group includes a positive integer number of the symbols.

As an embodiment, the positions of all said symbols in said group of symbols in said first block of symbols are default (i.e. the division of the group of symbols does not require a signalling configuration).

As an embodiment, the positions of all the symbols within the group of symbols in the first symbol block are consecutive.

As an embodiment, the positions of any two of the symbols within the group of symbols in the first block of symbols are not contiguous.

As an embodiment, any Q consecutive symbols in the first symbol block belong to the Q symbol groups, respectively.

As an embodiment, a constellation pattern corresponding to the symbol in Q1 symbol groups in the Q symbol groups is correlated with the first bit sub-block, a constellation pattern corresponding to the symbol in the symbol groups in the Q symbol groups that do not belong to the Q1 symbol groups is uncorrelated with the first bit sub-block, and Q1 is a positive integer less than or equal to Q.

As a sub-embodiment of the above embodiment, the Q1 is equal to the Q.

As an embodiment, the first bit sub-block is associated with Q angle values, the Q angle values corresponding to the Q symbol groups one-to-one. For a given said symbol group, the corresponding constellation pattern is obtained by X-QAM rotating the corresponding said angle value, said X being a positive integer power of 2, said X being the same for said Q symbol groups. The absolute value of the angle value is equal to 0 or greater than 0.

As an embodiment, the above method has a benefit that the constellation patterns corresponding to the symbols in different symbol groups are rotated by using different angle values, so that it is avoided that the target receiver of the first wireless signal always makes an erroneous estimation of the angle values due to a phase error of a channel (phase error).

As an embodiment, Q angle values are associated to the first bit sub-block, the Q angle values and the Q symbol groups being in one-to-one correspondence. For a given symbol group, the corresponding constellation pattern is derived from QPSK rotating the corresponding angle value. The absolute value of the angle value is equal to 0 or greater than 0.

As an embodiment, any two of said Q angle values are unequal.

As an embodiment, the Q is related to the number of bits in the first sub-block of bits.

As an embodiment, the Q is related to the number of bits in the second bit block.

As an embodiment, the Q is related to the number of symbols in the first symbol block.

As one example, Q is fixed.

As an embodiment, the Association (Association) of the Q angle value and the first bit sub-block is default (i.e. configuration without downlink signaling).

As an embodiment, the first sub-block of bits is associated with a Q1 one of the Q angular values, the one of the Q angular values not belonging to the Q1 angular value is independent of the first sub-block of bits, the Q1 is a positive integer less than or equal to the Q, the Q1 angular value is in one-to-one correspondence with the Q1 symbol groups.

As an example, the position of the Q1 angle values in the Q angle values is default (i.e., configuration without downlink signaling).

As an example, the Association (Association) of the Q1 angle value and the first bit sub-block is default (i.e. configuration without downlink signaling).

As one example, the Q is greater than 1, the Q1 is equal to the Q-1, and the ones of the Q angle values that do not belong to the Q1 angle values are equal to 0.

As an embodiment, the first sub-block of bits is used to determine a first sequence comprising the Q angle values.

As a sub-embodiment of the above embodiment, the first sequence is composed of the Q angle values as elements.

In particular, according to one aspect of the present invention, said first bit sub-block is a subset of said first bit block, and the position of said first bit sub-block in said first bit block is default.

As an example, the default refers to: and is not configurable.

As an example, the default refers to: the position of the bits in the first bit sub-block in the first bit block is fixed for a given length of the first bit block (i.e. the number of bits).

As an example, the default refers to: the position of the bits in the first bit sub-block in the first bit block is fixed for a given length of the first bit block and a given length of the first bit sub-block.

As an embodiment, the number of bits in the first bit sub-block and the number of bits in the second bit block are related.

As a sub-embodiment of the above embodiment, the number of bits in the first bit block is independent of the number of bits in the second bit block.

As an embodiment, the first bit sub-block is located at the head of the first bit block.

As an embodiment, the first bit sub-block is located at the rearmost of the first bit block.

Specifically, according to an aspect of the present invention, the step a further includes the steps of:

-step A0. receiving downlink information, the first node being a UE; or sending downlink information, wherein the first node is a base station.

Wherein the downlink information is used to determine at least one of { the constellation pattern corresponding to the symbols in the first symbol block and the association of the first bit sub-block, the number of bits in the first bit sub-block, the position of the first bit sub-block in the first bit block }.

As an embodiment, the downlink information indicates an association of the first bit sub-block and the Q angle value. The first bit sub-block is associated with the Q angle values, and the Q angle values correspond to the Q symbol groups one to one. For a given said symbol group, the corresponding constellation pattern is obtained by X-QAM rotating the corresponding said angle value, said X being a positive integer power of 2, said X being the same for said Q symbol groups. The absolute value of the angle value is equal to 0 or greater than 0.

As an embodiment, the downlink information is carried by higher layer signaling.

As a sub-embodiment of the foregoing embodiment, the downlink information is carried by a Radio Resource Control (RRC) signaling.

As an embodiment, the downlink information is configured semi-statically.

As an embodiment, the downlink information is cell-common.

As an embodiment, the downlink information is UE-specific.

As an embodiment, the first wireless signal is UE-specific.

As a sub-embodiment of the above embodiment, the first node is a base station. For the downlink physical layer signaling specific to the cell or the downlink physical layer signaling specific to the terminal group, the corresponding constellation pattern adopted by the modulation mapper is Z-QAM, and Z is a positive integer power of 2.

As a sub-embodiment of the above embodiment, said Z is equal to said X.

As a sub-embodiment of the above embodiment, said Z is not equal to said X.

As an embodiment, the downlink information is further used to determine the positions of the Q1 symbol groups in the Q symbol groups, the constellation pattern corresponding to the symbols in the Q1 symbol groups is associated with the first bit sub-block, and the constellation pattern corresponding to the symbols in the Q symbol groups that do not belong to the Q1 symbol groups is independent of the first bit sub-block.

Specifically, according to an aspect of the present invention, the first node is a base station, and the second bit block includes downlink control information; or the first node is a UE and the second bit block includes uplink control information.

As an embodiment, the downlink control information indicates at least one of corresponding Data { an occupied time domain resource, an occupied frequency domain resource, an MCS (Modulation and Coding Scheme, Redundancy Version, NDI (New Data Indicator), and HARQ (Hybrid Automatic Repeat reQuest) process number }.

As an embodiment, the uplink control Information indicates at least one of { HARQ-ACK (Acknowledgement), CSI (Channel State Information), SR (Scheduling Request), CRI (CSI-RS Resource Indication) }.

The invention discloses a method in a second node used for wireless communication, which comprises the following steps:

-step a. receiving a first wireless signal;

-step b. performing channel decoding to recover the first block of bits.

Wherein bits in the second block of bits are used to generate bits in the first block of bits. The first bit block comprises a first sub-block of bits, the bits in the second bit block being used for the channel coding of the corresponding channel coded input. Some or all of the symbols in a first symbol block generated by performing modulation mapping on the channel coded output are used to generate the first wireless signal. The constellation pattern corresponding to at least one symbol in the first symbol block is associated with the first bit sub-block. The first bit block, the second bit block, and the first bit sub-block respectively include a positive integer number of bits. The first block of symbols includes a positive integer number of symbols.

As an embodiment, the second node is a base station and the first node is a UE.

As an embodiment, the second node is a UE and the first node is a base station.

As an embodiment, the output of the channel decoding is used to recover bits of the first bit block that do not belong to the first sub-block of bits.

As an embodiment, a Constellation pattern (Constellation pattern) corresponding to the symbols in the first symbol block is used to recover the first bit sub-block.

As an embodiment, the second node determines, according to a received value of the first wireless signal, a constellation pattern corresponding to the symbol in the first symbol block.

As an embodiment, the symbols in the first symbol block are divided into Q symbol groups, the constellation pattern corresponding to the symbols in each symbol group is the same, when the number is greater than 1, the constellation patterns corresponding to the symbols in different symbol groups are different, and Q is a positive integer.

As a sub-implementation of the foregoing embodiment, a constellation pattern corresponding to the symbol in Q1 symbol groups in the Q symbol groups is correlated with the first bit sub-block, a constellation pattern corresponding to the symbol in the symbol groups in the Q symbol groups that do not belong to the Q1 symbol groups is uncorrelated with the first bit sub-block, and Q1 is a positive integer less than or equal to Q.

As a sub-embodiment of the above embodiment, the Q1 is equal to the Q.

As a sub-embodiment of the above embodiment, the constellation pattern corresponding to the symbols in the Q1 symbol groups is used to recover the first bit sub-block.

As an embodiment, the second node is a base station, and the first wireless signal is transmitted on an uplink physical layer control channel (i.e. an uplink channel that can only be used for carrying physical layer signaling).

As a sub-embodiment of the above embodiment, the first wireless signal is transmitted on the PUCCH.

As a sub-embodiment of the above embodiment, the first wireless signal is transmitted on sPUCCH.

As an embodiment, the second node is a base station, and the first wireless signal is transmitted on an uplink physical layer data channel (i.e. an uplink channel that can be used to carry physical layer data).

As a sub-embodiment of the above embodiment, the first wireless signal is transmitted on a PUSCH.

As an embodiment, the second node is a UE, and the first wireless signal is transmitted on a downlink physical layer control channel (i.e. a downlink channel that can only be used for carrying physical layer signaling).

As a sub-embodiment of the above embodiment, the first wireless signal is transmitted on the PDCCH.

As a sub-embodiment of the above embodiment, the first wireless signal is transmitted on the sPDCCH.

As an embodiment, the second node is a UE, and the first wireless signal is transmitted on a downlink physical layer data channel (i.e. a downlink channel that can be used to carry physical layer data).

As a sub-embodiment of the above embodiment, the first radio signal is transmitted on the PDSCH.

As an embodiment, the output of the channel decoding is used to recover the second sub-block of bits.

As an embodiment, the first sub-block of bits is used to determine a first sequence, the first sequence comprising Q elements, the Q elements respectively indicating the Q angle values, the first sequence belonging to a first set of sequences, the first set of sequences comprising K sequences, the first sub-block of bits indicating an index of the first sequence in the first set of sequences, the K being a positive integer greater than 1.

As a sub-embodiment of the above embodiment, the K sequences are used to determine K reference quantities respectively, and the index of a target sequence in the first sequence set is used to recover the first bit sub-block, the target sequence being the sequence of the K sequences corresponding to the largest reference quantity.

As a sub-embodiment of the above embodiment, the reception value of the first radio signal at the second node is used to determine the K references.

As a sub-implementation of the foregoing embodiment, for any given sequence of the K sequences, the second node calculates the reference quantity corresponding to the given sequence according to { a constellation pattern of each symbol in the first symbol block corresponding to the given sequence, a reception value of the first wireless signal at the second node }.

As a sub-embodiment of the above-described embodiment, the reference is a maximum likelihood probability (likelihood probability).

Specifically, according to an aspect of the present invention, the step B further includes the steps of:

-step B0. receiving downlink information, the second node being a UE; or sending downlink information, wherein the second node is a base station.

Specifically, according to an aspect of the present invention, the second node is a UE, and the second bit block includes downlink control information; or the second node is a base station, and the second bit block includes uplink control information.

The invention discloses a device used in a first node of wireless communication, which comprises the following modules:

a first processing module: for generating a first bit block, performing channel coding;

a first sending module: for transmitting a first wireless signal.

As an embodiment, the apparatus in a first node for wireless communication as described above is characterized in that the first bit block comprises a second bit sub-block, the bits in the second bit sub-block being used for the input of the channel coding.

As an embodiment, the apparatus in a first node for wireless communication as described above is characterized in that the CRC bit block of the second bit block is used for generating the first bit block.

As an embodiment, the apparatus in a first node for wireless communication as described above is characterized in that the first symbol block comprises Q symbol groups, and the constellation pattern corresponding to the symbols in each symbol group is the same. The Q is a positive integer greater than 1, and constellation patterns corresponding to any two different symbol groups in the Q symbol groups are different; or said Q is 1. The symbol group includes a positive integer number of the symbols.

As an embodiment, the apparatus in a first node for wireless communication as described above is characterized in that said first sub-block of bits is a subset of said first block of bits, the position of said first sub-block of bits in said first block of bits being default.

As an embodiment, the apparatus in the first node for wireless communication is characterized in that the first processing module is further configured to receive downlink information, and the apparatus in the first node is a user equipment; or the first processing module is further configured to send downlink information, and the device in the first node is a base station device. Wherein the downlink information is used to determine at least one of { the constellation pattern corresponding to the symbols in the first symbol block and the association of the first bit sub-block, the number of bits in the first bit sub-block, the position of the first bit sub-block in the first bit block }.

As an embodiment, the apparatus in the first node for wireless communication is characterized in that the apparatus in the first node is a base station apparatus, and the second bit block includes downlink control information; or the device in the first node is a user equipment, and the second bit block includes uplink control information.

The invention discloses a device in a second node used for wireless communication, which comprises the following modules:

a first receiving module: for receiving a first wireless signal;

a second processing module: for performing channel decoding to recover the first block of bits.

As an embodiment, the apparatus in the second node for wireless communication described above is characterized in that the first bit block comprises a second bit sub-block, bits of the second bit sub-block being used for the input of the channel coding.

As an embodiment, the apparatus in a second node for wireless communication as described above is characterized in that a CRC bit block of said second bit block is used for generating said first bit block.

As an embodiment, the apparatus in a second node for wireless communication as described above is characterized in that the first symbol block comprises Q symbol groups, and the constellation pattern corresponding to the symbols in each symbol group is the same. The Q is a positive integer greater than 1, and constellation patterns corresponding to any two different symbol groups in the Q symbol groups are different; or said Q is 1. The symbol group includes a positive integer number of the symbols.

As an embodiment, the apparatus in the second node for wireless communication described above is characterized in that the first sub-block of bits is a subset of the first block of bits, the position of the first sub-block of bits in the first block of bits being default.

As an embodiment, the apparatus in the second node for wireless communication is characterized in that the second processing module is further configured to receive downlink information, and the apparatus in the second node is a user equipment; or the second processing module is further configured to send downlink information, and the device in the second node is a base station device. Wherein the downlink information is used to determine at least one of { the constellation pattern corresponding to the symbols in the first symbol block and the association of the first bit sub-block, the number of bits in the first bit sub-block, the position of the first bit sub-block in the first bit block }.

As an embodiment, the apparatus in the second node for wireless communication is characterized in that the apparatus in the second node is a user equipment, and the second bit block includes downlink control information; or the device in the second node is a base station device, and the second bit block includes uplink control information.

As an example, compared with the conventional scheme, the invention has the following advantages:

a portion of the CRC bits are not taken as input to the channel encoder but are used to adjust the modulation constellation of the corresponding wireless signal. Compared with the conventional method in which all CRC bits are input to a channel encoder to be transmitted as redundancy, it is possible to reduce redundancy caused by the CRC bits in a corresponding wireless signal and improve transmission efficiency of the wireless signal.

Decreasing the false alarm probability of the control channel by increasing the length of the CRC bits. The added CRC bits are not directly transmitted in the wireless signal, but are reflected on the modulation constellation pattern of the wireless signal, so that no additional overhead is added, and the reduction of the transmission efficiency caused by the addition of the CRC bits is avoided while the lower false alarm probability is obtained.

The receiving end can recover the added CRC bits by trying all possible constellation patterns and finding out among them the one with the maximum likelihood probability. Since the decision on the constellation pattern benefits from the combining gain from combining over all transmitted symbols, it is ensured that the added CRC bits can be accurately recovered with a high probability.

Drawings

Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings in which:

fig. 1 shows a flow diagram of wireless transmission according to an embodiment of the invention;

FIG. 2 shows a flow diagram of wireless transmission according to another embodiment of the invention;

fig. 3 shows a schematic diagram of a relationship between constellation patterns corresponding to symbols in a first bit sub-block and a first symbol block according to an embodiment of the invention;

fig. 4 shows a schematic diagram of a relation between { first bit block, second bit block } and a first radio signal according to an embodiment of the invention;

FIG. 5 is a diagram illustrating the location of Q symbol groups in a first symbol block, according to one embodiment of the invention;

FIG. 6 is a diagram illustrating the location of Q symbol groups in a first symbol block according to another embodiment of the present invention;

fig. 7 shows a block diagram of a processing arrangement in a first node for wireless communication according to an embodiment of the invention;

fig. 8 shows a block diagram of a processing device in a second node for wireless communication according to an embodiment of the invention.

Example 1

Embodiment 1 illustrates a flow chart of wireless transmission, as shown in fig. 1. In fig. 1, base station N1 is the serving cell maintenance base station for UE U2. In fig. 1, the step in block F1 is optional.

For N1, downlink information is sent in step S101; the first wireless signal is transmitted in step S11.

For U2, downlink information is received in step S201; the first wireless signal is received in step S21.

In embodiment 1, the bits in the second bit block are used by the N1 to generate the bits in the first bit block. The first bit block comprises a first sub-block of bits, the bits in the second bit block being used by the N1 for channel coded input. Some or all of the symbols in a first symbol block generated by performing modulation mapping on the channel coded output are used by the N1 to generate the first wireless signal. The constellation pattern corresponding to at least one symbol in the first symbol block is associated with the first bit sub-block. The first bit block, the second bit block, and the first bit sub-block respectively include a positive integer number of bits. The first block of symbols includes a positive integer number of symbols. The downlink information is used by the U2 to determine at least one of { the constellation pattern to which the symbols in the first symbol block correspond and the association of the first bit sub-block, the number of bits in the first bit sub-block, the position of the first bit sub-block in the first bit block }.

As sub-embodiment 1 of embodiment 1, the channel coding includes rate matching.

As a sub-embodiment 2 of embodiment 1, Constellation patterns (Constellation patterns) corresponding to a part of symbols in the first symbol block are related to the first bit sub-block, and Constellation patterns corresponding to the rest of symbols in the first symbol block are not related to the first bit sub-block.

As sub-embodiment 3 of embodiment 1, the constellation patterns corresponding to all symbols in the first symbol block are associated with the first bit sub-block.

As a sub-embodiment of sub-embodiment 3 of embodiment 1, the constellation patterns corresponding to all symbols in the first symbol block are the same.

As a sub-embodiment of sub-embodiment 3 of embodiment 1, the constellation patterns corresponding to at least two symbols existing in the first symbol block are different.

As sub-embodiment 4 of embodiment 1, the Constellation pattern (Constellation pattern) corresponding to the symbols in the first symbol block is used by the U2 to recover the first bit sub-block.

As sub-embodiment 5 of embodiment 1, the U2 determines, according to a received value of the first wireless signal, a constellation pattern corresponding to all the symbols in the first symbol block.

As sub-embodiment 6 of embodiment 1, for any symbol in the first symbol block, the number of Constellation points (Constellation points) included in the Constellation pattern corresponding to the any symbol is independent of the first bit sub-block.

As sub-embodiment 7 of embodiment 1, the number of constellation points included in the constellation pattern corresponding to all symbols in the first symbol block is the same.

As sub-embodiment 8 of embodiment 1, the output of the channel coding is independent of the first sub-block of bits.

As a sub-embodiment 9 of embodiment 1, the bits in the first bit block are arranged sequentially, and the bits in the second bit block are arranged sequentially.

As sub-embodiment 10 of embodiment 1, the bits in the first bit sub-block are arranged sequentially.

As a sub-embodiment 11 of embodiment 1, the positions of the bits in the first bit sub-block in the first bit block are consecutive.

As a sub-embodiment 12 of embodiment 1, the positions of the bits in the first sub-block of bits in the first block of bits are discrete.

As a sub-embodiment 13 of embodiment 1, the symbols in the first symbol block are arranged sequentially.

As a sub-embodiment 14 of embodiment 1, all symbols in the first symbol block are used by the N1 to generate the first wireless signal.

As a sub-embodiment 15 of embodiment 1, the partial symbols in the first symbol block and the second symbol block are used by the N1 to generate the first wireless signal.

As a sub-embodiment of sub-embodiment 15 of embodiment 1, the second block of symbols comprises a reference signal.

As a sub-embodiment of sub-embodiment 15 of embodiment 1, the second symbol block includes CSI-RS.

As a sub-embodiment of sub-embodiment 15 of embodiment 1, the second block of symbols is independent of the first block of symbols.

As sub-embodiment 16 of embodiment 1, the first bit block is generated on the physical layer of N1.

As a sub-embodiment 17 of embodiment 1, the first block of bits and the bits outside the second block of bits are independent.

As sub-embodiment 18 of embodiment 1, the N1 generates the second bit block according to a scheduling result.

As a sub-embodiment 19 of embodiment 1, the channel coding is a polar code.

As sub-embodiment 20 of embodiment 1, the channel coding is one of { LDPC code, turbo code, convolutional code }.

As a sub-embodiment 21 of embodiment 1, the first wireless signal is transmitted on a physical layer control channel (i.e., a physical layer channel that cannot be used to transmit physical layer data).

As a sub-embodiment of sub-embodiment 21 of embodiment 1, the first wireless signal is transmitted on the PDCCH.

As a sub-embodiment of sub-embodiment 21 of embodiment 1, the first wireless signal is transmitted on sPDCCH.

As a sub-embodiment 22 of embodiment 1, the first wireless signal is transmitted on a physical layer data channel (i.e. a physical layer channel that can be used to carry physical layer data).

As a sub-embodiment of sub-embodiment 22 of embodiment 1, the first wireless signal is transmitted on the PDSCH.

As sub-embodiment 23 of embodiment 1, the first block of bits comprises a second sub-block of bits, the bits in the second sub-block of bits being used by the N1 for the input of the channel coding.

As a sub-embodiment 24 of embodiment 1, the channel decoded output corresponding to the channel coding is used by the U2 to recover the second bit sub-block.

As sub-embodiment 25 of embodiment 1, any one bit of the first bit block belongs to one of { the first bit sub-block, the second bit sub-block }.

As sub-embodiment 26 of embodiment 1, there is no bit in the first bit block that belongs to both the first bit sub-block and the second bit sub-block.

As a sub-embodiment 27 of embodiment 1, the channel coded input comprises { all bits in the second bit block, all bits in the second bit sub-block, all bits in a third bit block }, the values of all bits in the third bit block being predetermined.

As a sub-embodiment of sub-embodiment 27 of embodiment 1, all bits in the third bit block are 0.

As a sub-embodiment of sub-embodiment 27 of embodiment 1, the identification of N1 is used by the N1 to generate bits in the third bit block.

As a sub-embodiment of sub-embodiment 27 of embodiment 1, the identification of N1 is PCI.

As a sub-embodiment of sub-embodiment 27 of embodiment 1, the identification of the U2 is used by the N1 to generate bits in the third bit block.

As a sub-embodiment of sub-embodiment 27 of embodiment 1, the identity of U2 is RNTI.

As a sub-embodiment 28 of embodiment 1, { all bits in the second bit block, all bits in the second bit sub-block } constitutes an input of the channel coding.

As sub-embodiment 29 of embodiment 1, the number of bits in the second sub-block of bits is greater than the number of bits in the first sub-block of bits.

As a sub-embodiment 30 of embodiment 1, the CRC bit block of the second bit block is used by the N1 to generate the first bit block.

As a sub-embodiment 31 of embodiment 1, the first block of bits is a CRC block of bits of the second block of bits.

As a sub-embodiment 32 of embodiment 1, the first bit block is a bit block after the CRC bit block of the second bit block is scrambled.

As a sub-embodiment of sub-embodiment 32 of embodiment 1, said scrambling code uses a scrambling code sequence related to the identity of said N1.

As a sub-embodiment of sub-embodiment 32 of embodiment 1, the scrambling code uses a scrambling code sequence related to the identity of the U2.

As a sub-embodiment 33 of embodiment 1, the first symbol block includes Q symbol groups, and the constellation patterns corresponding to the symbols in each symbol group are the same. And Q is a positive integer greater than 1, and constellation patterns corresponding to any two different symbol groups in the Q symbol groups are different. The symbol group includes a positive integer number of the symbols.

As a sub-embodiment 34 of embodiment 1, the positions of all said symbols in said group of symbols in said first block of symbols are default (i.e. the division of the group of symbols does not require a signalling configuration).

As a sub-embodiment 35 of embodiment 1, the positions of all of the symbols within the group of symbols in the first block of symbols are consecutive.

As a sub-embodiment 36 of embodiment 1, the positions of any two of the symbols within the group of symbols in the first block of symbols are not contiguous.

As a sub-embodiment 37 of embodiment 1, any Q consecutive symbols in said first symbol block belong to said Q symbol groups, respectively.

As a sub-embodiment 38 of embodiment 1, a constellation pattern corresponding to a symbol in Q1 symbol groups among the Q symbol groups is correlated with the first bit sub-block, a constellation pattern corresponding to a symbol in the symbol group not belonging to the Q1 symbol groups among the Q symbol groups is uncorrelated with the first bit sub-block, and Q1 is a positive integer less than or equal to Q.

As a sub-embodiment of sub-embodiment 38 of embodiment 1, said Q1 is equal to said Q.

As a sub-embodiment of sub-embodiment 38 of embodiment 1, said Q is greater than 1 and said Q1 is equal to said Q-1.

As a sub-embodiment of sub-embodiment 38 of embodiment 1, the constellation pattern corresponding to the symbols in the Q1 symbol groups is used by the U2 to recover the first sub-block of bits.

As a sub-embodiment 39 of embodiment 1, an Association (Association) between the constellation pattern corresponding to the symbols in the Q1 symbol groups and the first bit sub-block is default (i.e. configuration without downlink signaling).

As sub-embodiment 40 of embodiment 1, the first sub-block of bits is associated with Q angle values, the Q angle values corresponding one-to-one to the Q symbol groups. For a given said symbol group, the corresponding constellation pattern is obtained by X-QAM rotating the corresponding said angle value, said X being a positive integer power of 2, said X being the same for said Q symbol groups. The absolute value of the angle value is equal to 0 or greater than 0.

As sub-embodiment 41 of embodiment 1, Q angle values are associated to the first bit sub-block, the Q angle values and the Q symbol groups being in one-to-one correspondence. For a given symbol group, the corresponding constellation pattern is derived from QPSK rotating the corresponding angle value. The absolute value of the angle value is equal to 0 or greater than 0.

As a sub-embodiment 42 of embodiment 1, the Q is related to the number of bits in the first sub-block of bits.

As a sub-embodiment 43 of embodiment 1, the Q is related to the number of bits in the second bit block.

As a sub-embodiment 44 of embodiment 1, the Q is related to the number of symbols in the first symbol block.

As sub-example 45 of example 1, the Q is fixed.

As a sub-embodiment 46 of embodiment 1, the Association (Association) of the Q-angle value and the first bit sub-block is default (i.e. configuration without downlink signaling).

As sub-embodiment 47 of embodiment 1, the first bit sub-block is associated with a Q1 angle value of the Q angle values, and the Q1 angle values are in one-to-one correspondence with the Q1 symbol groups. The angle values of the Q angle values that do not belong to the Q1 angle values are independent of the first bit sub-block, the Q1 being a positive integer less than or equal to the Q.

As sub-embodiment 48 of embodiment 1, the position of the Q1 angle values in the Q angle values is default (i.e., configuration without downlink signaling).

As sub-embodiment 49 of embodiment 1, the Q is greater than 1, the Q1 is equal to the Q-1, the ones of the Q angular values that do not belong to the Q1 angular values are equal to 0.

As sub-embodiment 50 of embodiment 1, the first sub-block of bits is used by the N1 to determine a first sequence, the first sequence including the Q angle values.

As a sub-embodiment of sub-embodiment 50 of embodiment 1, the first sequence consists of the Q angle values as elements.

As a sub-embodiment of sub-embodiment 50 of embodiment 1, the first sequence belongs to a first set of sequences, the first set of sequences includes K sequences, the first sub-block of bits indicates an index of the first sequence in the first set of sequences, and K is a positive integer greater than 1.

As a sub-embodiment of sub-embodiment 50 of embodiment 1, the K sequences are respectively used by the U2 to determine K reference quantities, the index of a target sequence in the first set of sequences is used by the U2 to recover the first sub-block of bits, the target sequence being the sequence of the K sequences corresponding to the largest of the reference quantities.

As a sub-embodiment of sub-embodiment 50 of embodiment 1, the received values of the first wireless signal are used by the U2 to determine the K references.

As a sub-embodiment of sub-embodiment 50 of embodiment 1, for any given one of the K sequences, the U2 calculates the reference quantity corresponding to the given sequence according to { the received value of the first wireless signal in the constellation pattern of each symbol in the first symbol block corresponding to the given sequence }.

As a sub-embodiment of sub-embodiment 50 of embodiment 1, the reference is a maximum likelihood probability (likelihood probability).

As a sub-embodiment 51 of embodiment 1, the first sub-block of bits is a subset of the first block of bits, the position of the first sub-block of bits in the first block of bits being default.

As a sub-embodiment of sub-embodiment 51 of embodiment 1, the default means: and is not configurable.

As a sub-embodiment of sub-embodiment 51 of embodiment 1, the default means: the position of the bits in the first bit sub-block in the first bit block is fixed for a given length of the first bit block (i.e. the number of bits).

As a sub-embodiment of sub-embodiment 51 of embodiment 1, the default means: the position of the bits in the first bit sub-block in the first bit block is fixed for a given length of the first bit block and a given length of the first bit sub-block.

As a sub-embodiment 52 of embodiment 1, the number of bits in the first bit sub-block is related to the number of bits in the second bit block.

As a sub-embodiment of sub-embodiment 52 of embodiment 1, the number of bits in the first block of bits is independent of the number of bits in the second block of bits.

As sub-embodiment 53 of embodiment 1, the downlink information indicates an association of the first bit sub-block and the Q angle value.

As a sub-embodiment 54 of embodiment 1, the downlink information is carried by higher layer signaling.

As a sub-embodiment of sub-embodiment 54 of embodiment 1, the downlink information is carried by RRC signaling.

As a sub-embodiment 55 of embodiment 1, the downstream information is semi-statically configured.

As sub-implementation 56 of the implementation 1, the downlink information is cell-common.

As a sub-embodiment 57 of embodiment 1, the downlink information is UE-specific.

As a sub-embodiment 58 of embodiment 1, the first wireless signal is UE-specific.

As a sub-embodiment of sub-embodiment 58 of embodiment 1, for cell-specific downlink physical layer signaling or terminal group-specific downlink physical layer signaling, the corresponding constellation pattern employed by the modulation mapper is Z-QAM, and Z is a positive integer power of 2.

As a sub-embodiment of sub-embodiment 58 of embodiment 1, said Z is equal to said X.

As a sub-embodiment of sub-embodiment 58 of embodiment 1, said Z is not equal to said X.

As a sub-embodiment 59 of embodiment 1, the downlink information is further used by the U2 to determine positions of the Q1 symbol groups in the Q symbol groups, a constellation pattern corresponding to the symbols in the Q1 symbol groups is associated with the first bit sub-block, and a constellation pattern corresponding to the symbols in the Q symbol groups that do not belong to the Q1 symbol groups is independent of the first bit sub-block.

As a sub-embodiment 60 of embodiment 1, the second bit block includes downlink control information indicating at least one of { occupied time domain resource, occupied frequency domain resource, MCS, RV, NDI, HARQ process number } of corresponding data.

As sub-embodiment 61 of embodiment 1, block F1 in fig. 1 exists.

As sub-embodiment 62 of embodiment 1, block F1 in fig. 1 is not present.

Example 2

Embodiment 2 illustrates a flow chart of wireless transmission, as shown in fig. 2. In fig. 2, base station N3 is the serving cell maintenance base station for UE U4. In fig. 2, the step in block F2 is optional.

For N3, downlink information is sent in step S301; the first wireless signal is received in step S31.

For U4, downlink information is received in step S401; the first wireless signal is transmitted in step S41.

In embodiment 2, the bits in the second bit block are used by the U4 to generate the bits in the first bit block. The first bit block comprises a first sub-block of bits, the bits in the second bit block being used by the U4 for channel coded input. Some or all of the symbols in a first symbol block generated by performing modulation mapping on the channel coded output are used by the U4 to generate the first wireless signal. The constellation pattern corresponding to at least one symbol in the first symbol block is associated with the first bit sub-block. The first bit block, the second bit block, and the first bit sub-block respectively include a positive integer number of bits. The first block of symbols includes a positive integer number of symbols. The downlink information is used by the U4 to determine at least one of { the constellation pattern to which the symbols in the first symbol block correspond and the association of the first bit sub-block, the number of bits in the first bit sub-block, the position of the first bit sub-block in the first bit block }.

As sub-embodiment 1 of embodiment 2, the first bit block is generated on the physical layer of the U4.

As sub-embodiment 2 of embodiment 2, the part of the first bit block not belonging to the first bit sub-block is used by the U4 for the input of the channel coding.

As sub-embodiment 3 of embodiment 2, the output of the channel coding corresponding to the channel coding is used by the N3 to recover the bits of the first bit block that do not belong to the first bit sub-block.

As sub-embodiment 4 of embodiment 2, the Constellation pattern (Constellation pattern) corresponding to the symbols in the first symbol block is used by the N3 to recover the first bit sub-block.

As sub-embodiment 5 of embodiment 2, the N3 determines, according to a received value of the first wireless signal, a constellation pattern corresponding to all the symbols in the first symbol block.

As sub-embodiment 6 of embodiment 2, the U4 generates the second bit block according to the scheduling result of the N3.

As a sub-embodiment 7 of embodiment 2, the first wireless signal is transmitted on a physical layer control channel (i.e., a physical layer channel that cannot be used to transmit physical layer data).

As a sub-embodiment of sub-embodiment 7 of embodiment 2, the first radio signal is transmitted on the PUCCH.

As a sub-embodiment of sub-embodiment 7 of embodiment 2, the first wireless signal is transmitted on sPUCCH.

As a sub-embodiment 8 of embodiment 2, the first wireless signal is transmitted on a physical layer data channel (i.e. a physical layer channel that can be used to carry physical layer data).

As a sub-embodiment of sub-embodiment 8 of embodiment 2, the first wireless signal is transmitted on PUSCH.

As sub-embodiment 9 of embodiment 2, the second bit block includes uplink control information indicating at least one of { HARQ-ACK, CSI, SR, CRI }.

As sub-embodiment 10 of embodiment 2, block F2 in fig. 2 exists.

As a sub-embodiment 11 of embodiment 2, block F2 in fig. 2 is not present.

Example 3

Embodiment 3 illustrates a schematic diagram of a relationship between constellation patterns corresponding to symbols in a first bit sub-block and a first symbol block, as shown in fig. 3.

In embodiment 3, the first symbol block includes Q symbol groups, and the constellation pattern corresponding to the symbols in each of the symbol groups is the same. The Q is a positive integer greater than 1, and constellation patterns corresponding to any two different symbol groups in the Q symbol groups are different; or said Q is 1. The symbol group includes a positive integer number of the symbols. The first bit sub-block is associated with Q angle values, and the Q angle values correspond to the Q symbol groups one to one. For a given symbol group, the corresponding constellation pattern is derived by QPSK rotating the corresponding angle value, which is equal to 0 or greater in absolute value than 0.

In fig. 3, the first bit sub-block includes 2 bits. When 2 bits in the first sub-block of bits are {0, 0}, the Q angle values are {30 °, -30 °, ·, 45 ° }, respectively; when 2 bits in the first sub-block of bits are {0, 1}, the Q angle values are { -30 °, 45 °, ·, 30 ° }, respectively; when 2 bits in the first sub-block of bits are {1, 0}, the Q angle values are {45 °, 30 °, -30 ° }, respectively; when 2 bits in the first bit sub-block are {1, 1}, the Q angle values are {25 °, -25 °, 10 ° }, respectively.

As sub-embodiment 1 of embodiment 3, for any symbol in the first symbol block, the number of Constellation points (Constellation points) included in a Constellation pattern corresponding to the any symbol is independent of the first bit sub-block.

As sub-embodiment 2 of embodiment 3, the number of constellation points included in the constellation pattern corresponding to all symbols in the first symbol block is the same.

As sub-embodiment 3 of embodiment 3, the constellation pattern does not include the number of constellation points.

As sub-embodiment 4 of embodiment 3, the bits in the first bit sub-block are arranged sequentially.

As sub-embodiment 5 of embodiment 3, the positions of the bits in the first bit sub-block in the first bit block in the present invention are consecutive.

As sub-embodiment 6 of embodiment 3, the positions of the bits in the first bit sub-block in the first bit block in the present invention are discrete.

As sub-embodiment 7 of embodiment 3, the Association (Association) of the Q-angle value and the first bit sub-block is default (i.e. configuration without downlink signaling).

As a sub-embodiment 8 of embodiment 3, a Constellation pattern (Constellation pattern) corresponding to the symbols in the first symbol block is used to recover the first bit sub-block.

As sub-embodiment 9 of embodiment 3, the first sub-block of bits is used to determine a first sequence comprising the Q angle values. For example, in fig. 3, when 2 bits in the first bit sub-block are {0, 0}, the first sequence is {30 °, -30 °,.., 45 ° }; when 2 bits in the first sub-block of bits are {0, 1}, the first sequence is { -30 °, 45 °, ·, 30 ° }; when 2 bits in the first sub-block of bits are {1, 0}, the first sequence is {45 °, 30 °, -30 ° }; when 2 bits in the first sub-block of bits are {1, 1}, the first sequence is {25 °, -25 °, 10 ° }.

As a sub-embodiment of sub-embodiment 9 of embodiment 3, the first sequence belongs to a first set of sequences, the first set of sequences includes K sequences, the first sub-block of bits indicates an index of the first sequence in the first set of sequences, and K is a positive integer greater than 1.

As a sub-embodiment of sub-embodiment 9 of embodiment 3, the K sequences are used to determine K reference quantities respectively, and an index of a target sequence in the first set of sequences is used to recover the first sub-block of bits, the target sequence being the sequence of the K sequences corresponding to the largest reference quantity.

As a sub-embodiment of sub-embodiment 9 of embodiment 3, the reception values of the first wireless signal in the invention at the second node are used to determine the K references.

As a sub-embodiment of sub-embodiment 9 of embodiment 3, for any given sequence of the K sequences, the second node in the present invention calculates the reference quantity corresponding to the given sequence according to { a constellation pattern of each symbol in the first symbol block corresponding to the given sequence, a reception value of the first wireless signal at the second node in the present invention }.

As a sub-embodiment of sub-embodiment 9 of embodiment 3, the reference is a maximum likelihood probability (likelihood probability).

Example 4

Embodiment 4 illustrates a schematic diagram of a relationship between { first bit block, second bit block } and a first wireless signal, as shown in fig. 4.

In embodiment 4, the bits in the second bit block are used to generate the bits in the first bit block. The first bit block comprises a first bit sub-block and a second bit sub-block, { bits in the second bit block, bits in the second bit sub-block } is used for the channel coded input in the present invention. Some or all of the symbols in a first symbol block generated by performing modulation mapping on the channel coded output are used to generate the first wireless signal. The constellation pattern corresponding to at least one symbol in the first symbol block is associated with the first bit sub-block. The first bit block, the second bit block, the first bit sub-block, and the second bit sub-block each include a positive integer number of bits. The first block of symbols includes a positive integer number of symbols.

As sub-embodiment 1 of embodiment 4, the channel coding includes rate matching.

As sub-embodiment 2 of embodiment 4, Constellation patterns (Constellation patterns) corresponding to a part of symbols in the first symbol block are correlated with the first bit sub-block, and Constellation patterns corresponding to the rest of symbols in the first symbol block are independent of the first bit sub-block.

As sub-embodiment 3 of embodiment 4, the constellation patterns corresponding to all symbols in the first symbol block are associated with the first bit sub-block.

As sub-embodiment 4 of embodiment 4, the constellation pattern does not include the number of constellation points.

As sub-embodiment 5 of embodiment 4, the output of the channel coding is independent of the first sub-block of bits.

As sub-embodiment 6 of embodiment 4, the number of bits included in the first bit sub-block is smaller than the number of bits included in the second bit sub-block.

As a sub-embodiment 7 of embodiment 4, the bits in the first bit block are arranged sequentially and the bits in the second bit block are arranged sequentially.

As sub-embodiment 8 of embodiment 4, the bits in the first bit sub-block are arranged sequentially.

As a sub-embodiment 9 of embodiment 4, the positions of the bits in the first bit sub-block in the first bit block are consecutive.

As sub-embodiment 10 of embodiment 4, the positions of the bits in the first sub-block of bits in the first block of bits are discrete.

As a sub-embodiment 11 of embodiment 4, the symbols in the first symbol block are arranged sequentially.

As a sub-embodiment 12 of embodiment 4, the first symbol block is an output of the channel-coded output after sequentially passing through a Scrambling (Scrambling) and a Modulation Mapper (Modulation Mapper).

As a sub-embodiment 13 of embodiment 4, all symbols in the first symbol block are used for generating the first radio signal.

As sub-embodiment 14 of embodiment 4, the partial symbols in the first symbol block and the second symbol block are used to generate the first radio signal.

As a sub-embodiment of sub-embodiment 14 of embodiment 4, the second block of symbols includes a reference signal.

As a sub-embodiment of sub-embodiment 14 of embodiment 4, the second symbol block includes CSI-RS.

As a sub-embodiment of sub-embodiment 14 of embodiment 4, the second block of symbols is independent of the first block of symbols.

As sub-embodiment 15 of embodiment 4, the first wireless signal is output after all symbols in the first symbol block sequentially pass through a layer mapper, a precoding, a resource element mapper, and a wideband symbol generation.

As a sub-embodiment 16 of embodiment 4, the first wireless signal is an output of the partial symbols in the first symbol block and the second symbol block after sequentially passing through a layer mapper, a precoding, a resource element mapper, and a wideband symbol generation.

As a sub-embodiment 17 of embodiment 4, the first wireless signal is an output of all symbols in the first symbol block after sequentially passing through a layer mapper, a conversion precoder, a precoding, a resource element mapper, and a wideband symbol generation.

As sub-embodiment 18 of embodiment 4, the first wireless signal is an output of the partial symbols in the first symbol block and the second symbol block after sequentially passing through a layer mapper, a conversion precoder, a precoding, a resource element mapper, and a wideband symbol generation.

As a sub-embodiment 19 of embodiment 4, the wideband symbol is an OFDM symbol.

As a sub-embodiment 20 of embodiment 4, the wideband symbol is an FBMC symbol.

As a sub-embodiment 21 of embodiment 4, the first block of bits is independent of bits other than the second block of bits.

As a sub-embodiment 22 of embodiment 4, for any bit in the first block of bits, the any bit is equal to the sum of a positive integer number of bits in the second block of bits modulo 2.

As a sub-embodiment 23 of embodiment 4, for any bit in the first bit block, the any bit is obtained by performing an exclusive or operation on a sum of positive integers of bits in the second bit block modulo 2 and corresponding bits in a scrambling code sequence.

As a sub-embodiment 24 of embodiment 4, the channel coding is a polar code.

As sub-embodiment 25 of embodiment 4, the channel coding is one of { LDPC code, turbo code, convolutional code }.

As sub-embodiment 26 of embodiment 4, any one bit of the first bit block belongs to one of { the first bit sub-block, the second bit sub-block }.

As a sub-embodiment 27 of embodiment 4, there is not one bit in the first bit block belonging to both the first bit sub-block and the second bit sub-block.

As a sub-embodiment 28 of embodiment 4, the channel coded input comprises { all bits in the second bit block, all bits in the second bit sub-block, all bits in a third bit block }, the values of all bits in the third bit block being predetermined.

As a sub-embodiment of sub-embodiment 28 of embodiment 4, all bits in the third block of bits are 0.

As a sub-embodiment 29 of embodiment 4, { all bits in the second bit block, all bits in the second bit sub-block } constitute the input of the channel coding.

As a sub-embodiment 30 of embodiment 4, the first sub-block of bits is a subset of the first block of bits, the position of the first sub-block of bits in the first block of bits being default.

As a sub-embodiment 31 of embodiment 4, the number of bits in the first sub-block of bits is related to the number of bits in the second block of bits.

As a sub-embodiment of sub-embodiment 31 of embodiment 4, the number of bits in the first block of bits is independent of the number of bits in the second block of bits.

Example 5

Embodiment 5 illustrates a schematic diagram of the positions of Q symbol groups in a first symbol block, as shown in fig. 5.

In embodiment 5, the first symbol block includes the Q symbol groups, and the constellation patterns corresponding to the symbols in each of the symbol groups are the same. The Q is a positive integer greater than 1, and constellation patterns corresponding to any two different symbol groups in the Q symbol groups are different; or said Q is 1. The symbol group includes a positive integer number of the symbols. The positions of all of the symbols within the group of symbols in the first block of symbols are consecutive.

As sub-embodiment 1 of embodiment 5, the Q is related to the number of bits in the first sub-block of bits in the present invention.

As a sub-embodiment of sub-embodiment 1 of embodiment 5, when the number of bits in the first sub-block of bits is equal to x1, the Q is equal to Q1; when the number of bits in the first sub-block of bits is equal to y1, the Q is equal to p 1. Wherein the y1 is less than the x1, and the p1 is less than or equal to the q 1. The x1, the y1 and the q1, the p1 being positive integers, respectively.

As sub-embodiment 2 of embodiment 5, the Q is related to the number of bits in the second bit block in the present invention.

As a sub-embodiment of sub-embodiment 2 of embodiment 5, when the number of bits in the second block of bits is equal to x2, the Q is equal to Q2; when the number of bits in the second bit block is equal to y2, the Q is equal to p 2. Wherein the y2 is less than the x2, and the p2 is less than or equal to the q 2. The x2, the y2, the q2 and the p2 are positive integers, respectively.

As sub-embodiment 3 of embodiment 5, the Q is related to the number of symbols in the first symbol block.

As a sub-embodiment of sub-embodiment 3 of embodiment 5, when the number of symbols in the first symbol block is equal to x3, the Q is equal to Q3; when the number of symbols in the first symbol block is equal to y3, the Q is equal to p 3. Wherein the y3 is less than the x3, and the p3 is less than or equal to the q 3. The x3, the y3, the q3 and the p3 are positive integers, respectively.

As sub-example 4 of example 5, the Q is fixed.

As a sub-embodiment 5 of embodiment 5, the positions of all said symbols in said group of symbols in said first block of symbols are default (i.e. the division of the group of symbols does not require a signalling configuration).

Example 6

Embodiment 6 illustrates a schematic diagram of the positions of Q symbol groups in a first symbol block, as shown in fig. 6.

In embodiment 6, the first symbol block includes the Q symbol groups, and the constellation patterns corresponding to the symbols in each of the symbol groups are the same. The Q is a positive integer greater than 1, and constellation patterns corresponding to any two different symbol groups in the Q symbol groups are different; or said Q is 1. The symbol group includes a positive integer number of the symbols. The positions of any two of the symbols within the group of symbols in the first block of symbols are not contiguous.

As sub-embodiment 1 of embodiment 6, arbitrary Q consecutive symbols in the first symbol block belong to the Q symbol groups, respectively.

As a sub-embodiment 2 of embodiment 6, the positions of all said symbols in said group of symbols in said first block of symbols are default (i.e. the division of the group of symbols does not require a signalling configuration).

Example 7

Embodiment 7 illustrates a block diagram of a processing apparatus in a first node for wireless communication, as shown in fig. 7.

In fig. 7, the first node apparatus 200 is mainly composed of a first processing module 201 and a first sending module 202.

The first processing module 201 is configured to generate a first bit block and perform channel coding; the first sending module 202 is configured to send a first wireless signal.

In embodiment 7, the bits in the second bit block are used by the first processing module 201 to generate the bits in the first bit block. The first bit block comprises a first sub-block of bits, the bits of the second bit block being used by the first processing module 201 for the input of the channel coding. Some or all of the symbols in a first block of symbols, which is generated by performing modulation mapping on the channel coded output, are used by the first transmit module 202 to generate the first wireless signal. The constellation pattern corresponding to at least one symbol in the first symbol block is associated with the first bit sub-block. The first bit block, the second bit block, and the first bit sub-block respectively include a positive integer number of bits. The first block of symbols includes a positive integer number of symbols.

As sub-embodiment 1 of embodiment 7, the first block of bits comprises a second sub-block of bits, the bits of which are used by the first processing module 201 as input for the channel coding.

As sub-embodiment 2 of embodiment 7, the CRC bit block of the second bit block is used by the first processing module 201 to generate the first bit block.

As sub-embodiment 3 of embodiment 7, the first symbol block includes Q symbol groups, and the constellation patterns corresponding to the symbols in each of the symbol groups are the same. The Q is a positive integer greater than 1, and constellation patterns corresponding to any two different symbol groups in the Q symbol groups are different; or said Q is 1. The symbol group includes a positive integer number of the symbols.

As sub-embodiment 4 of embodiment 7, the first sub-block of bits is a subset of the first block of bits, the position of the first sub-block of bits in the first block of bits being default.

As a sub-embodiment 5 of the embodiment 7, the first processing module 201 is further configured to receive downlink information, where the device in the first node is a user equipment.

As sub-embodiment 6 of embodiment 7, the first processing module 201 is further configured to send downlink information, and the device in the first node is a base station device.

As a sub-embodiment 7 of embodiment 7, the downlink information is used to determine at least one of { an association between a constellation pattern corresponding to symbols in the first symbol block and the first bit sub-block, a number of bits in the first bit sub-block, a position of the first bit sub-block in the first bit block }.

As sub-embodiment 8 of embodiment 7, the device in the first node is a base station device, and the second bit block includes downlink control information.

As a sub-embodiment 9 of embodiment 7, the device in the first node is a user equipment, and the second bit block includes uplink control information.

Example 8

Embodiment 8 illustrates a block diagram of a processing apparatus in a second node for wireless communication, as shown in fig. 8.

In fig. 8, the second node apparatus 300 is mainly composed of a first receiving module 301 and a second processing module 302.

The first receiving module 301 is configured to receive a first wireless signal; the second processing module 302 is configured to perform channel decoding to recover the first bit block.

In embodiment 8, bits in the second bit block are used to generate bits in the first bit block. The first bit block comprises a first sub-block of bits, the bits in the second bit block being used for the channel coding of the corresponding channel coded input. Some or all of the symbols in a first symbol block generated by performing modulation mapping on the channel coded output are used to generate the first wireless signal. The constellation pattern corresponding to at least one symbol in the first symbol block is associated with the first bit sub-block. The first bit block, the second bit block, and the first bit sub-block respectively include a positive integer number of bits. The first block of symbols includes a positive integer number of symbols.

As sub-embodiment 1 of embodiment 8, the first block of bits comprises a second sub-block of bits, the bits in the second sub-block of bits being used for the input of the channel coding.

As sub-embodiment 2 of embodiment 8, the CRC bit block of the second bit block is used to generate the first bit block.

As sub-embodiment 3 of embodiment 8, the first symbol block includes Q symbol groups, and the constellation patterns corresponding to the symbols in each of the symbol groups are the same. The Q is a positive integer greater than 1, and constellation patterns corresponding to any two different symbol groups in the Q symbol groups are different; or said Q is 1. The symbol group includes a positive integer number of the symbols.

As sub-embodiment 4 of embodiment 8, the first sub-block of bits is a subset of the first block of bits, the position of the first sub-block of bits in the first block of bits being default.

As a sub-embodiment 5 of the embodiment 8, the second processing module 302 is further configured to receive downlink information, where a device in the second node is a user equipment;

as sub-embodiment 6 of embodiment 8, the second processing module 302 is further configured to send downlink information, and the device in the second node is a base station device.

As sub-embodiment 7 of embodiment 8, the downlink information is used to determine at least one of { an association between a constellation pattern corresponding to symbols in the first symbol block and the first bit sub-block, a number of bits in the first bit sub-block, a position of the first bit sub-block in the first bit block }.

As a sub-embodiment 8 of the embodiment 8, the device in the second node is a user equipment, and the second bit block includes downlink control information.

As sub-embodiment 9 of embodiment 8, the device in the second node is a base station device, and the second bit block includes uplink control information.

As sub-embodiment 10 of embodiment 8, the output of the channel decoding is used by the second processing module 302 to recover bits of the first bit block that do not belong to the first bit sub-block.

As a sub-embodiment 11 of embodiment 8, the Constellation pattern (Constellation pattern) corresponding to the symbols in the first symbol block is used by the second processing module 302 to recover the first bit sub-block.

As sub-embodiment 12 of embodiment 8, the second processing module 302 determines, according to a received value of the first wireless signal, a constellation pattern corresponding to the symbol in the first symbol block.

It will be understood by those skilled in the art that all or part of the steps of the above methods may be implemented by instructing relevant hardware through a program, and the program may be stored in a computer readable storage medium, such as a read-only memory, a hard disk or an optical disk. Alternatively, all or part of the steps of the above embodiments may be implemented by using one or more integrated circuits. Accordingly, the module units in the above embodiments may be implemented in a hardware form, or may be implemented in a form of software functional modules, and the present application is not limited to any specific form of combination of software and hardware. The UE or the terminal comprises wireless communication equipment such as but not limited to a mobile phone, a tablet computer, a notebook, an internet card, an internet of things communication module, vehicle-mounted communication equipment, an NB-IOT terminal and an eMTC terminal. The base station or system device in the present invention includes but is not limited to a macro cell base station, a micro cell base station, a home base station, a relay base station, and other wireless communication devices.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A method in a first node used for wireless communication, comprising the steps of:

-a step a. generating a first block of bits, performing channel coding;

-step b. transmitting a first wireless signal;

wherein a CRC bit block of a second bit block is used to generate the first bit block; the first bit block comprises a first sub-block of bits, the bits in the second block of bits are used for the input of the channel coding, the output of the channel coding is independent of the first sub-block of bits; some or all of the symbols in a first symbol block, which is generated by performing modulation mapping on the channel-coded output, are used to generate the first wireless signal; the constellation pattern corresponding to at least one symbol in the first symbol block is related to the first bit sub-block; the first bit block, the second bit block, and the first bit sub-block each include a positive integer number of bits; the first block of symbols includes a positive integer number of symbols.

2. The method of claim 1, wherein the first bit block comprises a second bit sub-block, and wherein bits in the second bit sub-block are used for the channel coded input.

3. The method of claim 1 or 2, wherein the first symbol block comprises Q symbol groups, and the constellation pattern corresponding to the symbols in each symbol group is the same; the Q is a positive integer greater than 1, the constellation patterns corresponding to any two different symbol groups in the Q symbol groups are different, or the Q is 1; the symbol group includes a positive integer number of the symbols.

4. Method according to claim 1 or 2, wherein the first sub-block of bits is a subset of the first block of bits, wherein the position of the first sub-block of bits in the first block of bits is default.

5. The method according to claim 1 or 2, wherein said step a further comprises the steps of:

-step A0. receiving downlink information, the first node being a UE; or sending downlink information, wherein the first node is a base station;

6. The method according to claim 1 or 2, wherein the first node is a base station and the second bit block comprises downlink control information; or the first node is a UE and the second bit block includes uplink control information.

7. A method in a second node for wireless communication, comprising the steps of:

-step a. receiving a first wireless signal;

-step b. performing channel decoding to recover the first block of bits;

wherein a CRC bit block of a second bit block is used to generate the first bit block; the first bit block comprises a first sub-block of bits, the bits in the second bit block are used for the channel coding of a corresponding channel coded input, the channel coded output is independent of the first sub-block of bits; some or all of the symbols in a first symbol block, which is generated by performing modulation mapping on the channel-coded output, are used to generate the first wireless signal; the constellation pattern corresponding to at least one symbol in the first symbol block is related to the first bit sub-block; the first bit block, the second bit block, and the first bit sub-block each include a positive integer number of bits; the first block of symbols includes a positive integer number of symbols.

8. The method of claim 7, wherein the first bit block comprises a second bit sub-block, and wherein bits in the second bit sub-block are used for the channel coded input.

9. The method of claim 7 or 8, wherein the first symbol block comprises Q symbol groups, and the constellation pattern corresponding to the symbols in each symbol group is the same; the Q is a positive integer greater than 1, the constellation patterns corresponding to any two different symbol groups in the Q symbol groups are different, or the Q is 1; the symbol group includes a positive integer number of the symbols.

10. The method according to claim 7 or 8, wherein the first sub-block of bits is a subset of the first block of bits, and wherein the position of the first sub-block of bits in the first block of bits is default.

11. The method according to claim 7 or 8, wherein the step B further comprises the steps of:

-step B0. receiving downlink information, the second node being a UE; or sending downlink information, wherein the second node is a base station;

12. The method according to claim 7 or 8, wherein the second node is a UE, and the second bit block comprises downlink control information; or the second node is a base station, and the second bit block includes uplink control information.

13. An apparatus in a first node used for wireless communication, comprising:

a first sending module: for transmitting a first wireless signal;

14. The apparatus of claim 13, wherein the first block of bits comprises a second sub-block of bits, and wherein bits in the second sub-block of bits are used for the input of the channel coding.

15. The apparatus of claim 13 or 14, wherein the first symbol block comprises Q symbol groups, and the constellation pattern corresponding to the symbols in each symbol group is the same; the Q is a positive integer greater than 1, the constellation patterns corresponding to any two different symbol groups in the Q symbol groups are different, or the Q is 1; the symbol group includes a positive integer number of the symbols.

16. The apparatus of claim 13 or 14, wherein the first sub-block of bits is a subset of the first block of bits, and wherein a position of the first sub-block of bits in the first block of bits is default.

17. The apparatus according to claim 13 or 14, wherein the first processing module is further configured to receive downlink information, and the apparatus in the first node is a user equipment; or the first processing module is further configured to send downlink information, where the device in the first node is a base station device; wherein the downlink information is used to determine at least one of { the constellation pattern corresponding to the symbols in the first symbol block and the association of the first bit sub-block, the number of bits in the first bit sub-block, the position of the first bit sub-block in the first bit block }.

18. The apparatus according to claim 13 or 14, wherein the apparatus in the first node is a base station apparatus, and the second bit block includes downlink control information; or the device in the first node is a user equipment, and the second bit block includes uplink control information.

19. An apparatus in a second node for wireless communication, comprising:

a first receiving module: for receiving a first wireless signal;

a second processing module: for performing channel decoding to recover the first block of bits;

20. The apparatus of claim 19, wherein the first block of bits comprises a second sub-block of bits, and wherein bits in the second sub-block of bits are used for the input of the channel coding.

21. The apparatus of claim 19 or 20, wherein the first symbol block comprises Q symbol groups, and the constellation pattern corresponding to the symbols in each symbol group is the same; the Q is a positive integer greater than 1, the constellation patterns corresponding to any two different symbol groups in the Q symbol groups are different, or the Q is 1; the symbol group includes a positive integer number of the symbols.

22. The apparatus according to claim 19 or 20, wherein the first sub-block of bits is a subset of the first block of bits, and wherein the position of the first sub-block of bits in the first block of bits is default.

23. The apparatus according to claim 19 or 20, wherein the second processing module is further configured to receive downlink information, and the apparatus in the second node is a user equipment; or the second processing module is further configured to send downlink information, where the device in the second node is a base station device; wherein the downlink information is used to determine at least one of { the constellation pattern corresponding to the symbols in the first symbol block and the association of the first bit sub-block, the number of bits in the first bit sub-block, the position of the first bit sub-block in the first bit block }.

24. The apparatus according to claim 19 or 20, wherein the apparatus in the second node is a user equipment, and the second bit block comprises downlink control information; or the device in the second node is a base station device, and the second bit block includes uplink control information.