WO2018145256A1 - Terminal dans des communications sans fil, et procédé et appareil dans une station de base - Google Patents

Terminal dans des communications sans fil, et procédé et appareil dans une station de base Download PDF

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Publication number
WO2018145256A1
WO2018145256A1 PCT/CN2017/073082 CN2017073082W WO2018145256A1 WO 2018145256 A1 WO2018145256 A1 WO 2018145256A1 CN 2017073082 W CN2017073082 W CN 2017073082W WO 2018145256 A1 WO2018145256 A1 WO 2018145256A1
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block
bit
sub
symbol
bits
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Chinese (zh)
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张晓博
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Nantong Langheng Communication Technology Co Ltd
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Nantong Langheng Communication Technology Co Ltd
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Priority to CN201780068874.2A priority Critical patent/CN109952726B/zh
Priority to PCT/CN2017/073082 priority patent/WO2018145256A1/fr
Publication of WO2018145256A1 publication Critical patent/WO2018145256A1/fr
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received

Definitions

  • the present invention relates to a method and apparatus for transmitting wireless signals in a wireless communication system, and more particularly to a method and apparatus for transmitting wireless signals in a wireless communication system supporting channel coding.
  • the CRC Cyclic Redundancy Check
  • the length of the CRC bits determines the false alarm probability of error checking and identification. Due to the false alarm probability, especially the false alarm probability of the control channel, directly affecting 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.
  • the number of control signalings received by the UE (User Equipment) in a unit time may be larger, so a lower control channel false alarm probability is required.
  • the most straightforward way to reduce the false alarm probability is to increase the length of the check bits (the check bits may be CRC or Parity Code, etc.). However, this will bring additional overhead and reduce 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.
  • the transmission efficiency can also obtain a lower false alarm probability due to the increase in the number of check bits.
  • the added check bits can be recovered at the receiving end by attempting all possible constellation patterns and finding one of them with the greatest likelihood probability.
  • the present invention discloses a solution. It should be noted that although the initial motivation of the present invention is directed to a control channel, the present invention is also applicable to other physical layer channels. In the case of no conflict, the features in the embodiments and embodiments in the first node of the present application can be applied to the second node, and vice versa. The features of the embodiments and the embodiments of the present application may be combined with each other arbitrarily without conflict.
  • a method for use in a first node for wireless communication including The following steps:
  • Step A Generate a first block of bits and perform channel coding
  • Step B Send the first wireless signal.
  • the bits in the second block of bits are used to generate bits in the first block of bits.
  • the first bit block includes a first bit sub-block, and bits in the second bit block are used for the input of the channel coding. Some or all of the symbols in the first symbol block are used to generate the first wireless signal, the first symbol block being generated by performing a modulation mapping on the output of the channel coding.
  • a constellation pattern corresponding to at least one of the first symbol blocks is associated with the first bit sub-block.
  • the first bit block, the second bit block and the first bit sub-block respectively comprise a positive integer number of bits.
  • the first symbol block includes a positive integer number of symbols.
  • the above method is advantageous in that the first bit block can correspond to a CRC bit block of the second bit block.
  • a portion of the CRC bit block, ie, the first bit sub-block, is not used for the input of the channel coding as in the conventional manner, but is used to adjust the constellation pattern corresponding to the symbol in the first symbol block.
  • redundancy caused by the CRC bit block in the first wireless signal can be reduced, and transmission efficiency of the first wireless signal is improved.
  • the length of the CRC bit block may be increased to reduce the false alarm probability of the first wireless signal under the premise of maintaining the transmission efficiency of the first wireless signal.
  • the channel coding includes rate matching.
  • a constellation pattern corresponding to a partial symbol in the first symbol block is associated with the first bit sub-block, and a constellation pattern corresponding to the remaining symbols in the first symbol block is The first bit sub-block is independent.
  • a constellation pattern corresponding to all symbols in the first symbol block is associated with the first bit sub-block.
  • the constellation patterns corresponding to all the symbols in the first symbol block are the same.
  • the constellation pattern corresponding to at least two symbols in the first symbol block is different.
  • the symbols in the first symbol block are divided into Q symbol groups, the symbol group includes a positive integer number of the symbols, and the constellation patterns corresponding to the symbols in each of the symbol groups are the same When the Q is greater than 1, the constellation patterns corresponding to the symbols in the different symbol groups are different, and the Q is a positive integer.
  • a constellation pattern corresponding to a symbol in the Q1 symbol group of the Q symbol groups is related to the first bit sub-block, and the Q symbol groups do not belong to the
  • the constellation pattern corresponding to the symbols in the symbol group of the Q1 symbol group is not related to the first bit sub-block, and the Q1 is a positive integer less than or equal to Q.
  • the Q1 is equal to the Q.
  • the Q is greater than 1, and the Q1 is equal to the Q-1.
  • an association between a constellation pattern corresponding to a symbol in the Q1 symbol group and the first bit sub-block is a default (ie, a configuration that does not require downlink signaling).
  • the number of constellation points included in the constellation pattern corresponding to the any of the symbols is independent of the first bit sub-block.
  • the number of constellation points included in the constellation pattern corresponding to all the symbols in the first symbol block is the same.
  • the constellation pattern does not include the number of constellation points.
  • the corresponding constellation pattern is obtained by X-QAM (Quadrature Amplitude Modulation) rotation Y degree, and the X is a positive integer power of 2, The absolute value of Y is equal to 0 or greater than zero.
  • X-QAM Quadrature Amplitude Modulation
  • the X is the same for all symbols in the first symbol block.
  • the Y is associated with the first bit sub-block.
  • the Ys corresponding to the symbols in the same symbol group are the same, and the Ys corresponding to the symbols in the different symbol groups are different.
  • the first bit sub-block is used to determine the Y corresponding to the any of the symbols.
  • the constellation pattern corresponding to any symbol in the symbol group that does not belong to the Q1 symbol group in the Q symbol groups is X-QAM, and the X is a positive integer power of 2.
  • the first bit sub-block is used to determine a first sequence
  • the first sequence includes Q elements
  • the Q elements and the Q symbol groups are in one-to-one correspondence
  • Any one of the Q elements indicates the Y corresponding to the symbol in the corresponding symbol group.
  • the first sequence belongs to a first sequence set, the first sequence set includes a positive integer sequence, and the first bit sub-block indicates that the first sequence is in the first An index in a sequence of collections.
  • the first bit sub-block is a binary sequence corresponding to an index of the first sequence in the first sequence set.
  • the X is equal to 4, and for any of the symbols in the first symbol block, the corresponding constellation pattern is obtained by rotating the Y degree by QPSK (Quadrature Phase Shift Keying).
  • QPSK Quadrature Phase Shift Keying
  • the output of the channel coding is independent of the first bit sub-block.
  • a portion of the first bit block that does not belong to the first bit sub-block is used for the input of the channel coding.
  • the input of the channel coding includes ⁇ all bits in the second bit block, all bits in the first bit block that do not belong to the first bit sub-block, in the third bit block All bits ⁇ , the values of all the bits in the third bit block are preset.
  • ⁇ all bits in the second bit block, all bits in the first bit block not belonging to the first bit sub-block ⁇ constitute an input of the channel coding.
  • the number of bits included in the first bit sub-block is smaller than the number of bits included in the first bit block.
  • the bits in the first bit block are sequentially arranged, and the bits in the second bit block are sequentially arranged.
  • the bits in the first bit sub-block are sequentially arranged.
  • the bits in the first bit sub-block are consecutive in the first bit block.
  • the position of the bits in the first bit sub-block in the first bit block is discrete.
  • the symbols in the first symbol block are sequentially arranged.
  • the first symbol block is an input after the output of the channel coding is sequentially subjected to scrambling and a modulation mapper. Out.
  • all of the symbols in the first symbol block are used to generate the first wireless signal.
  • the partial symbol and the second symbol block in the first symbol block are used to generate the first wireless signal.
  • the second symbol block includes a reference signal.
  • the second symbol block includes a CSI-RS (Channel State Information Reference Signals).
  • CSI-RS Channel State Information Reference Signals
  • the second symbol block is independent of the first symbol block.
  • the first wireless signal is that all symbols in the first symbol block pass through a layer mapper, a precoding, a resource element mapper, and a wideband symbol. The output after the occurrence.
  • the first wireless signal is an output of a partial symbol in the first symbol block and the second symbol block sequentially passing through a layer mapper, a precoding, a resource particle mapper, and a wideband symbol.
  • the first wireless signal is that all symbols in the first symbol block sequentially pass through a layer mapper, a transform precoder (for generating a complex value signal), precoding, resource particle mapping.
  • a transform precoder for generating a complex value signal
  • precoding for generating a complex value signal
  • resource particle mapping for generating resource particle mapping
  • the first wireless signal is a partial symbol in the first symbol block and the second symbol block sequentially passes through a layer mapper, a conversion precoder, a precoding, a resource particle mapper, a wideband symbol The output after the occurrence.
  • the wideband symbol is an OFDM (Orthogonal Frequency Division Multiplexing) symbol.
  • the wideband symbol is a FBMC (Filter Bank Multi Carrier) symbol.
  • FBMC Filter Bank Multi Carrier
  • the first bit block is generated on a physical layer of the first node.
  • the bits other than the first bit block and the second bit block are absent turn off.
  • the arbitrary bit is equal to the sum of the positive integer bits in the second block of bits modulo 2 .
  • the arbitrary bit is modulo the sum of the positive integer bits in the second bit block, and the corresponding bit in the scrambling code sequence Obtained after the XOR operation.
  • 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.
  • the first node is a User Equipment (UE), and in the step A, the first node generates the second bit block according to a scheduling result of the serving base station.
  • UE User Equipment
  • the channel coding is a polar code.
  • the channel coding is one of ⁇ LDPC (Low Density Parity Check) code, turbo code, convolutional code ⁇ .
  • LDPC Low Density Parity Check
  • the first wireless signal is transmitted on a physical layer control channel (ie, a physical layer channel that cannot be used to transmit physical layer data).
  • a physical layer control channel ie, a physical layer channel that cannot be used to transmit physical layer data.
  • the first wireless signal is transmitted on a physical layer data channel (ie, a physical layer channel that can be used to carry physical layer data).
  • a physical layer data channel ie, a physical layer channel that can be used to carry physical layer data.
  • the first node is a UE.
  • the first wireless signal is transmitted on a PUCCH (Physical Uplink Control Channel).
  • PUCCH Physical Uplink Control Channel
  • the first wireless signal is transmitted on an sPUCCH (short PUCCH).
  • the first wireless signal is transmitted on a PUSCH (Physical Uplink Shared CHannel).
  • PUSCH Physical Uplink Shared CHannel
  • the first node is a base station.
  • the first radio signal is transmitted on a PDCCH (Physical Downlink Control Channel).
  • PDCCH Physical Downlink Control Channel
  • the first radio signal is transmitted on an sPDCCH (short PDCCH).
  • the first wireless signal is Transmission on the PDSCH (Physical Downlink Shared CHannel).
  • PDSCH Physical Downlink Shared CHannel
  • the first bit block includes a second bit sub-block, and bits in the second bit sub-block are used for input of the channel coding.
  • any one of the first bit blocks belongs to one of ⁇ the first bit sub-block, the second bit sub-block ⁇ .
  • one bit in the first bit block does not belong to the first bit subblock and the second bit subblock.
  • the input of the channel coding includes ⁇ all bits in the second bit block, all bits in the second bit sub-block, all bits in the third bit block ⁇ , the third The values of all the bits in the bit block are preset.
  • all bits in the third bit block are 0.
  • the bits in the third bit block are related to the identity of the first node.
  • the identifier of the first node is used to generate a bit in the third bit block.
  • the first node is a UE
  • the identifier of the first node is an RNTI (Radio Network Temporary Identifier).
  • the first node is a base station
  • the identifier of the first node is a PCI (Physical Cell Identifier).
  • the bits in the third bit block are related to the identity of the target recipient of the first wireless signal.
  • the identity of the target recipient of the first wireless signal is used to generate bits in the third bit block.
  • the first node is a base station
  • the identifier of the target receiver of the first wireless signal is an RNTI
  • ⁇ all bits in the second bit block, all bits in the second bit sub-block ⁇ constitute the input of the channel coding.
  • the number of bits in the second bit sub-block is greater than the number of bits in the first bit sub-block.
  • the CRC bit block of the second bit block is used to generate the first bit block.
  • the first bit block is a CRC bit block of the second bit block.
  • the first bit block is a bit block after the CRC bit block of the second bit block is scrambled.
  • the scrambling code sequence adopted by the scrambling code is related to the identifier of the first node.
  • the scrambling code sequence employed by the scrambling code is related to the identity of the target recipient of the first wireless signal.
  • the CRC bit block of the second bit block is an output of the second bit block through a CRC cyclic generator polynomial.
  • a polynomial of the second bit block and the CRC bit block of the second bit block can be divisible by the CRC cyclic generation polynomial on GF(2), ie, the second bit block and the The remainder of the polynomial formed by the CRC block of the second block divided by the CRC loop generator polynomial is zero.
  • the first symbol block includes Q symbol groups, and a constellation pattern corresponding to symbols in each of the symbol groups is the same.
  • the Q is a positive integer greater than 1, and 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.
  • the position of all of the symbols in the symbol group in the first symbol block is default (ie, the division of the symbol group does not require a signaling configuration).
  • the locations of all of the symbols within the set of symbols in the first block of symbols are contiguous.
  • the position of any two of the symbols within the symbol group in the first symbol block is discontinuous.
  • any Q consecutive symbols in the first symbol block belong to the Q symbol groups respectively.
  • the symbol group in the Q1 symbol group is included in the Q symbol group
  • Corresponding constellation pattern is associated with the first bit sub-block, a constellation pattern corresponding to the symbol in the symbol group that does not belong to the Q1 symbol group, and the first bit The sub-blocks are irrelevant, and Q1 is a positive integer less than or equal to Q.
  • the Q1 is equal to the Q.
  • the Q is greater than 1, and the Q1 is equal to the Q-1.
  • the first bit sub-block is associated with Q angle values, and the Q angle values are in one-to-one correspondence with the Q symbol groups.
  • the corresponding constellation pattern is derived from the angle value corresponding to the X-QAM rotation, the X being a positive integer power of 2, the X being the same for the Q symbol groups .
  • the absolute value of the angle value is equal to 0 or greater than zero.
  • the above method has the advantage that different constellation patterns corresponding to the symbols in different symbol groups are rotated by different angle values, thereby avoiding phase errors due to channels.
  • the target recipient of the first wireless signal always has an erroneous estimate of the angle.
  • Q angle values are associated with the first bit sub-block, and the Q angle values are in one-to-one correspondence with the Q symbol groups.
  • the corresponding constellation pattern is derived from the angular value corresponding to the QPSK rotation.
  • the absolute value of the angle value is equal to 0 or greater than zero.
  • any two of the Q angle values are unequal.
  • the Q is related to the number of bits in the first bit sub-block.
  • the Q is related to the number of bits in the second block of bits.
  • the Q is related to the number of symbols in the first symbol block.
  • the Q is fixed.
  • the association of the Q angle values and the first bit sub-block is a default (ie, a configuration that does not require downlink signaling).
  • the first bit sub-block is associated with Q1 angle values of the Q angle values, the angle values of the Q angle values that do not belong to the Q1 angle values, and the Regardless of the first bit sub-block, the Q1 is a positive integer less than or equal to the Q, and the Q1 angle values are in one-to-one correspondence with the Q1 symbol groups.
  • the position of the Q1 angle values in the Q angle values is default (ie, configuration without downlink signaling is required).
  • the association of the Q1 angle value and the first bit sub-block is a default (ie, a configuration that does not require downlink signaling).
  • the Q is greater than 1, and the Q1 is equal to the Q-1, and the angle value that does not belong to the Q1 angle value of the Q angle values is equal to 0.
  • the first bit sub-block is used to determine a first sequence, the first sequence comprising the Q angle values.
  • the first sequence is composed of the Q angle values as elements.
  • the first sequence belongs to a first sequence set, the first sequence set includes a positive integer sequence, and the first bit sub-block indicates that the first sequence is in the first An index in a sequence of collections.
  • the first bit sub-block is a subset of the first bit block, and a position of the first bit sub-block in the first bit block is The default.
  • the default means not configurable.
  • the default means that for a given length of the first bit block (ie, the number of bits), bits in the first bit sub-block are in the first bit block.
  • the location is fixed.
  • the default means that for a given length of the first bit block and a given length of the first bit sub-block, the bits in the first bit sub-block are The position in the first block of bits is fixed.
  • the number of bits in the first bit sub-block is related to the number of bits in the second bit block.
  • the number of bits in the first bit block is independent of the number of bits in the second bit block.
  • the first bit sub-block is located at the forefront of the first bit block.
  • the first bit sub-block is located at the end of the first bit block.
  • the step A further includes the following steps:
  • Step A0 Receiving downlink information, the first node is a UE; or transmitting downlink information, the first node is a base station.
  • the downlink information is used to determine ⁇ the association between the constellation pattern corresponding to the symbol in the first symbol block and the first bit sub-block, the number of bits in the first bit block, the first The number of bits in a one-bit sub-block, at least one of the positions of the first bit sub-block in the first bit block.
  • the downlink information indicates an association between the first bit sub-block and the Q angle values.
  • the first bit sub-block is associated with the Q angle values, and the Q angle values are in one-to-one correspondence with the Q symbol groups.
  • the corresponding constellation pattern is derived from the angle value corresponding to the X-QAM rotation, the X being a positive integer power of 2, the X being the same for the Q symbol groups .
  • the absolute value of the angle value is equal to 0 or greater than zero.
  • the downlink information is carried by higher layer signaling.
  • the downlink information is carried by RRC (Radio Resource Control) signaling.
  • RRC Radio Resource Control
  • the downlink information is semi-statically configured.
  • the downlink information is common to the cell.
  • the downlink information is UE-specific.
  • the first wireless signal is UE specific.
  • the first node is a base station.
  • the corresponding constellation pattern used by the modulation mapper is Z-QAM, and Z is a positive integer power of 2.
  • the Z is equal to the X.
  • the Z is not equal to the X.
  • the downlink information is further used to determine a location of the Q1 symbol groups in the Q symbol groups, a constellation pattern corresponding to the symbols in the Q1 symbol groups, and the The first bit sub-block is associated, and the constellation pattern corresponding to the symbol in the symbol group that does not belong to the Q1 symbol group is independent of the first bit sub-block.
  • 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 an uplink. Control information.
  • the downlink control information indicates the time data of the corresponding data ⁇ Source, occupied frequency domain resources, MCS (Modulation and Coding Scheme), RV (Redundancy Version, Redundancy Version), NDI (New Data Indicator), HARQ (Hybrid Automatic Repeat reQuest) Automatically retransmit the request) at least one of the process numbers ⁇ .
  • MCS Modulation and Coding Scheme
  • RV Redundancy Version, Redundancy Version
  • NDI New Data Indicator
  • HARQ Hybrid Automatic Repeat reQuest Automatically retransmit the request
  • the uplink control information indicates ⁇ HARQ-ACK (Acknowledgement), CSI (Channel State Information), SR (Scheduling Request), CRI (CSI-RS Resource Indication) At least one of them.
  • the present invention discloses a method for use in a second node for wireless communication, comprising the steps of:
  • Step B Perform channel decoding to recover the first block of bits.
  • the bits in the second block of bits are used to generate bits in the first block of bits.
  • the first bit block includes a first bit sub-block, and bits in the second bit block are used for input of channel coding corresponding to the channel coding. Some or all of the symbols in the first symbol block are used to generate the first wireless signal, the first symbol block being generated by performing a modulation mapping on the output of the channel coding.
  • a constellation pattern corresponding to at least one of the first symbol blocks is associated with the first bit sub-block.
  • the first bit block, the second bit block and the first bit sub-block respectively comprise a positive integer number of bits.
  • the first symbol block includes a positive integer number of symbols.
  • the second node is a base station
  • the first node is a UE
  • the second node is a UE, and the first node is a base station.
  • the output of the channel coding is used to recover bits of the first bit block that do not belong to the first bit sub-block.
  • a constellation pattern corresponding to the symbol in the first symbol block is used to recover the first bit sub-block.
  • the second node determines, according to the received value of the first wireless signal, a constellation pattern corresponding to the symbol in the first symbol block.
  • the symbols in the first symbol block are divided into Q symbol groups, and the constellation patterns corresponding to the symbols in each of the symbol groups are the same, when the value is greater than 1, different
  • the constellation patterns corresponding to the symbols in the symbol group are different, the Q Is a positive integer.
  • a constellation pattern corresponding to the symbol in the Q1 symbol group is related to the first bit sub-block in the Q symbol groups, where the Q symbol groups are not
  • the constellation pattern corresponding to the symbol in the symbol group belonging to the Q1 symbol group is not related to the first bit sub-block, and the Q1 is a positive integer less than or equal to Q.
  • the Q1 is equal to the Q.
  • the Q is greater than 1, and the Q1 is equal to the Q-1.
  • the constellation pattern corresponding to the symbols in the Q1 symbol groups is used to recover the first bit sub-block.
  • the second node is a base station
  • the first wireless signal is transmitted on an uplink physical layer control channel (ie, an uplink channel that can only be used to carry physical layer signaling).
  • the first wireless signal is transmitted on the PUCCH.
  • the first wireless signal is transmitted on the sPUCCH.
  • the second node is a base station
  • the first wireless signal is transmitted on an uplink physical layer data channel (ie, an uplink channel that can be used to carry physical layer data).
  • the first wireless signal is transmitted on the PUSCH.
  • the second node is a UE
  • the first wireless signal is transmitted on a downlink physical layer control channel (ie, a downlink channel that can only be used to carry physical layer signaling).
  • a downlink physical layer control channel ie, a downlink channel that can only be used to carry physical layer signaling
  • the first wireless signal is transmitted on a PDCCH.
  • the first wireless signal is transmitted on the sPDCCH.
  • the second node is a UE
  • the first wireless signal is transmitted on a downlink physical layer data channel (ie, a downlink channel that can be used to carry physical layer data).
  • a downlink physical layer data channel ie, a downlink channel that can be used to carry physical layer data
  • the first wireless signal is transmitted on the PDSCH.
  • the first bit block includes a second bit sub-block, and bits in the second bit sub-block are used for input of the channel coding.
  • the output of the channel decoding is used to recover the second bit sub-block.
  • the CRC bit block of the second bit block is used to generate the first bit block.
  • the first bit block is a CRC bit block of the second bit block.
  • the first bit block is a bit block after the CRC bit block of the second bit block is scrambled.
  • the first symbol block includes Q symbol groups, and a constellation pattern corresponding to symbols in each of the symbol groups is the same.
  • the Q is a positive integer greater than 1, and 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.
  • the first bit sub-block is associated with Q angle values, and the Q angle values are in one-to-one correspondence with the Q symbol groups.
  • the corresponding constellation pattern is derived from the angle value corresponding to the X-QAM rotation, the X being a positive integer power of 2, the X being the same for the Q symbol groups .
  • the absolute value of the angle value is equal to 0 or greater than zero.
  • the first bit sub-block is used to determine a first sequence
  • the first sequence includes Q elements
  • the Q elements respectively indicate the Q angle values
  • the first sequence belongs to a first sequence set, the first sequence set comprising K sequences, the first bit sub-block indicating an index of the first sequence in the first sequence set, the K being a positive integer greater than one.
  • the K sequences are respectively used to determine K reference quantities, and an index of the target sequence in the first sequence set is used to recover the first bit sub-block,
  • the target sequence is the sequence of the K sequences corresponding to the largest of the reference quantities.
  • the received value of the first wireless signal at the second node is used to determine the K reference quantities.
  • the second node is configured according to ⁇ each symbol in the first symbol block corresponding to the given sequence a constellation pattern, the first wireless signal receiving a reference value corresponding to the given sequence at a received value of the second node.
  • the reference amount is a likelihood likelihood.
  • the first bit sub-block is a subset of the first bit block, and a position of the first bit sub-block in the first bit block is The default.
  • the step B further includes the following steps:
  • Step B0 Receiving downlink information, the second node is a UE; or transmitting downlink information, the second node is a base station.
  • the downlink information is used to determine ⁇ the association between the constellation pattern corresponding to the symbol in the first symbol block and the first bit sub-block, the number of bits in the first bit block, the first The number of bits in a one-bit sub-block, at least one of the positions of the first bit sub-block in the first bit block.
  • the downlink information indicates an association between the first bit sub-block and the Q angle values.
  • the first bit sub-block is associated with the Q angle values, and the Q angle values are in one-to-one correspondence with the Q symbol groups.
  • the corresponding constellation pattern is derived from the angle value corresponding to the X-QAM rotation, the X being a positive integer power of 2, the X being the same for the Q symbol groups .
  • the absolute value of the angle value is equal to 0 or greater than zero.
  • the second node is a UE, the second bit block includes downlink control information; or the second node is a base station, and the second bit block includes an uplink. Control information.
  • the invention discloses a device in a first node used for wireless communication, which comprises the following modules:
  • a first processing module configured to generate a first bit block and perform channel coding
  • the first sending module is configured to send the first wireless signal.
  • the bits in the second block of bits are used to generate bits in the first block of bits.
  • the first bit block includes a first bit sub-block, and bits in the second bit block are used for The input of the channel coding. Some or all of the symbols in the first symbol block are used to generate the first wireless signal, the first symbol block being generated by performing a modulation mapping on the output of the channel coding.
  • a constellation pattern corresponding to at least one of the first symbol blocks is associated with the first bit sub-block.
  • the first bit block, the second bit block and the first bit sub-block respectively comprise a positive integer number of bits.
  • the first symbol block includes a positive integer number of symbols.
  • the device in the first node used for wireless communication is characterized in that the first bit block includes a second bit sub-block, and bits in the second bit sub-block are used for the Channel coded input.
  • the device in the first node used for wireless communication is characterized in that the CRC bit block of the second bit block is used to generate the first bit block.
  • the device in the first node used for wireless communication is characterized in that 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. of.
  • the Q is a positive integer greater than 1, and 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.
  • the device in the first node used for wireless communication is characterized in that the first bit sub-block is a subset of the first bit block, and the first bit sub-block is in the The location in the first bit block is the default.
  • the device in the first node used for wireless communication is characterized in that the first processing module is further configured to receive downlink information, where the device 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.
  • the downlink information is used to determine ⁇ the association between the constellation pattern corresponding to the symbol in the first symbol block and the first bit sub-block, the number of bits in the first bit block, the first The number of bits in a one-bit sub-block, at least one of the positions of the first bit sub-block in the first bit block.
  • the device in the first node used for wireless communication is characterized in that: the device in the first node is a base station device, the second bit block includes downlink control information; or the first The device in the 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 configured to receive a first wireless signal
  • the second processing module is configured to perform channel decoding and recover the first bit block.
  • the bits in the second block of bits are used to generate bits in the first block of bits.
  • the first bit block includes a first bit sub-block, and bits in the second bit block are used for input of channel coding corresponding to the channel coding. Some or all of the symbols in the first symbol block are used to generate the first wireless signal, the first symbol block being generated by performing a modulation mapping on the output of the channel coding.
  • a constellation pattern corresponding to at least one of the first symbol blocks is associated with the first bit sub-block.
  • the first bit block, the second bit block and the first bit sub-block respectively comprise a positive integer number of bits.
  • the first symbol block includes a positive integer number of symbols.
  • the device in the second node used for wireless communication is characterized in that the first bit block includes a second bit sub-block, and bits in the second bit sub-block are used for the Channel coded input.
  • the apparatus in the second node used for wireless communication is characterized in that a CRC bit block of the second bit block is used to generate the first bit block.
  • the device in the second node used for wireless communication is characterized in that 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. of.
  • the Q is a positive integer greater than 1, and 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.
  • the device in the second node used for wireless communication is characterized in that the first bit sub-block is a subset of the first bit block, and the first bit sub-block is in the The location in the first bit block is the default.
  • the device in the second node used for wireless communication is characterized in that the second processing module is further configured to receive downlink information, where the device 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.
  • the downlink information is used to determine ⁇ the association between the constellation pattern corresponding to the symbol in the first symbol block and the first bit sub-block, the number of bits in the first bit block, the first The number of bits in a one-bit sub-block, at least one of the positions of the first bit sub-block in the first bit block.
  • the above features of the device in the second node used for wireless communication is a user equipment, 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.
  • the present invention has the following advantages over the conventional solution:
  • a portion of the .CRC bits are not used as input to the channel coder, but are used to adjust the modulation constellation pattern of the corresponding wireless signal. Compared with the conventional method of inputting all CRC bits into the channel coder as redundancy for transmission, the redundancy caused by the CRC bits in the corresponding wireless signal can be reduced, and the transmission efficiency of the wireless signal can be improved.
  • the receiving end can recover the increased CRC bits by trying all possible constellation patterns and finding one of them with the greatest likelihood probability. Since the decision on the constellation pattern benefits from the combined gain brought about by combining on all transmitted symbols, it is guaranteed that the increased CRC bits can be accurately recovered with a high probability.
  • FIG. 1 shows a flow chart of wireless transmission in accordance with one embodiment of the present invention
  • FIG. 2 shows a flow chart of wireless transmission in accordance with another embodiment of the present invention.
  • FIG. 3 is a diagram showing a relationship between a first bit sub-block and a constellation pattern corresponding to a symbol in a first symbol block, according to an embodiment of the present invention
  • FIG. 4 is a diagram showing the relationship between ⁇ first bit block, second bit block ⁇ and a first wireless signal according to an embodiment of the present invention
  • Figure 5 is a diagram showing the position of a Q symbol group in a first symbol block, in accordance with one embodiment of the present invention.
  • FIG. 6 shows a schematic diagram of locations of Q symbol groups in a first symbol block in accordance with another embodiment of the present invention.
  • FIG. 7 is a block diagram showing the structure of a processing device in a first node for wireless communication according to an embodiment of the present invention.
  • FIG. 8 is a block diagram showing the structure of a processing device in a second node for wireless communication according to an embodiment of the present invention.
  • Embodiment 1 illustrates a flow chart of wireless transmission, as shown in FIG.
  • base station N1 is a serving cell maintenance base station of UE U2.
  • the steps in block F1 are optional.
  • step S101 downlink information is transmitted in step S101; the first wireless signal is transmitted in step S11.
  • step S201 downlink information is received in step S201; the first wireless signal is received in step S21.
  • the bits in the second bit block are used by the N1 to generate bits in the first bit block.
  • the first bit block includes a first bit sub-block, and bits in the second bit block are used by the N1 for channel coding input. Some or all of the symbols in the first symbol block are used by the N1 to generate the first wireless signal, the first symbol block being generated by performing a modulation mapping on the output of the channel coding.
  • a constellation pattern corresponding to at least one of the first symbol blocks is associated with the first bit sub-block.
  • the first bit block, the second bit block and the first bit sub-block respectively comprise a positive integer number of bits.
  • the first symbol block includes a positive integer number of symbols.
  • the downlink information is used by the U2 to determine an association between a constellation pattern corresponding to a symbol in the first symbol block and the first bit sub-block, a quantity of bits in the first bit block, The number of bits in the first bit sub-block, at least one of the positions of the first bit sub-block in the first bit block.
  • the channel coding includes rate matching.
  • a constellation pattern corresponding to a partial symbol in the first symbol block is associated with the first bit sub-block, and the remaining symbols in the first symbol block are The corresponding constellation pattern is independent of the first bit sub-block.
  • a constellation pattern corresponding to all symbols in the first symbol block is associated with the first bit sub-block.
  • the first symbol block As a sub-embodiment of the sub-embodiment 3 of the embodiment 1, the first symbol block The constellation patterns corresponding to all symbols are the same.
  • the constellation pattern corresponding to at least two symbols in the first symbol block is different.
  • a constellation pattern corresponding to the symbol in the first symbol block is used by the U2 to recover the first bit sub-block.
  • the U2 determines, according to the received value of the first wireless signal, a constellation pattern corresponding to all the symbols in the first symbol block.
  • the number of constellation points included in the constellation pattern corresponding to the arbitrary symbol and the first The bit subblock is irrelevant.
  • the number of constellation points included in the constellation pattern corresponding to all the symbols in the first symbol block is the same.
  • the output of the channel coding is independent of the first bit sub-block.
  • the bits in the first bit block are sequentially arranged, and the bits in the second bit block are sequentially arranged.
  • the bits in the first bit sub-block are sequentially arranged.
  • the position of the bits in the first bit sub-block in the first bit block is continuous.
  • the position of the bits in the first bit sub-block in the first bit block is discrete.
  • the symbols in the first symbol block are sequentially arranged.
  • all of the symbols in the first symbol block are used by the N1 to generate the first wireless signal.
  • the partial symbol and the second symbol block in the first symbol block are used by the N1 to generate the first wireless signal.
  • the second symbol block includes a reference signal.
  • the second symbol block includes CSI-RS.
  • the second symbol block is independent of the first symbol block.
  • the first bit block is generated on the physical layer of the N1.
  • the first bit block is independent of bits other than the second bit block.
  • the N1 As a sub-embodiment 18 of Embodiment 1, the N1 generates the second bit block according to a scheduling result.
  • the channel coding is a polar code.
  • the channel coding is one of ⁇ LDPC code, turbo code, convolutional code ⁇ .
  • 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).
  • a physical layer control channel i.e., a physical layer channel that cannot be used to transmit physical layer data
  • the first wireless signal is transmitted on the PDCCH.
  • the first wireless signal is transmitted on the sPDCCH.
  • 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).
  • a physical layer data channel i.e., a physical layer channel that can be used to carry physical layer data.
  • the first wireless signal is transmitted on the PDSCH.
  • the first bit block includes a second bit sub-block, and the bits in the second bit sub-block are used by the N1 for the input of the channel coding.
  • the output of the channel coding corresponding to the channel coding is used by the U2 to recover the second bit sub-block.
  • any one of the first bit blocks belongs to one of ⁇ the first bit sub-block, the second bit sub-block ⁇ .
  • a bit does not exist in the first bit block and belongs to the first bit sub-block and the second bit sub-block.
  • the input of the channel coding includes ⁇ the second ratio All bits in the special block, all bits in the second bit sub-block, all bits in the third bit block ⁇ , the values of all bits in the third bit block are preset.
  • all bits in the third bit block are zero.
  • the identity of N1 is used by the N1 to generate bits in the third bit block.
  • the identifier of N1 is PCI.
  • the identity of U2 is used by the N1 to generate bits in the third bit block.
  • the identifier of the U2 is an RNTI.
  • the number of bits in the second bit sub-block is greater than the number of bits in the first bit sub-block.
  • the CRC bit block of the second bit block is used by the N1 to generate the first bit block.
  • the first bit block is a CRC bit block of the second bit block.
  • the first bit block is a bit block after the CRC bit block of the second bit block is scrambled.
  • the scrambling code sequence adopted by the scrambling code is related to the identifier of the N1.
  • the scrambling code sequence adopted by the scrambling code is related to the identifier of the U2.
  • 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 any two different symbol groups corresponding to the two symbol groups are different.
  • the symbol group includes a positive integer number of the symbols.
  • the position of all of the symbols in the symbol group in the first symbol block is default (i.e., the division of the symbol group does not require a signaling configuration).
  • the position of any two of the symbols in the symbol group in the first symbol block is discontinuous.
  • any Q consecutive symbols in the first symbol block belong to the Q symbol groups respectively.
  • the constellation pattern corresponding to the symbols in the Q1 symbol groups in the Q symbol groups is related to the first bit sub-block, and the Q symbol groups do not belong to the
  • the constellation pattern corresponding to the symbols in the symbol group of the Q1 symbol group is not related to the first bit sub-block, and the Q1 is a positive integer less than or equal to Q.
  • said Q1 is equal to said Q.
  • the Q is greater than 1, and the Q1 is equal to the Q-1.
  • the constellation pattern corresponding to the symbols in the Q1 symbol groups is used by the U2 to recover the first bit sub-block.
  • the association between the constellation pattern corresponding to the symbols in the Q1 symbol groups and the first bit sub-block is default (ie, configuration without downlink signaling is required) ).
  • the first bit sub-block is associated with Q angle values, and the Q angle values are in one-to-one correspondence with the Q symbol groups.
  • the corresponding constellation pattern is derived from the angle value corresponding to the X-QAM rotation, the X being a positive integer power of 2, the X being the same for the Q symbol groups .
  • the absolute value of the angle value is equal to 0 or greater than zero.
  • Q angle values are associated with the first bit sub-block, and the Q angle values are in one-to-one correspondence with the Q symbol groups.
  • the corresponding constellation pattern is derived from the angular value corresponding to the QPSK rotation.
  • the absolute value of the angle value is equal to 0 or greater than zero.
  • the Q is related to the number of bits in the first bit sub-block.
  • the Q is related to the number of bits in the second bit block.
  • the Q and the symbol in the first symbol block The quantity is related.
  • the Q is fixed.
  • the association of the Q angle values and the first bit sub-block is a default (ie, a configuration that does not require downlink signaling).
  • the first bit sub-block is associated with Q1 angle values of the Q angle values, and the Q1 angle values are in one-to-one correspondence with the Q1 symbol groups.
  • the angle value of the Q angle values that does not belong to the Q1 angle value is independent of the first bit sub-block, and the Q1 is a positive integer less than or equal to the Q.
  • the position of the Q1 angle values in the Q angle values is default (ie, a configuration that does not require downlink signaling).
  • the Q is greater than 1, and the Q1 is equal to the Q-1, and the angle value that does not belong to the Q1 angle values among the Q angle values is equal to 0.
  • the first bit sub-block is used by the N1 to determine a first sequence, and the first sequence includes the Q angle values.
  • the first sequence is composed of the Q angle values as elements.
  • the first sequence belongs to a first sequence set, the first sequence set includes K sequences, and the first bit sub-block indicates the first sequence In the index in the first sequence set, the K is a positive integer greater than one.
  • the K sequences are used by the U2 to determine K reference quantities, respectively, and an index of the target sequence in the first sequence set is used by the U2.
  • the target sequence is the sequence corresponding to the largest of the reference quantities in the K sequences.
  • the received value of the first wireless signal is used by the U2 to determine the K reference quantities.
  • the U2 is according to ⁇ the first symbol block corresponding to the given sequence
  • a constellation pattern of symbols the received value of the first wireless signal ⁇ calculates the reference amount corresponding to the given sequence.
  • the reference amount is a likelihood likelihood.
  • the first bit sub-block is a subset of the first bit block, and a position of the first bit sub-block in the first bit block is default.
  • the default means not configurable.
  • the default means for a given length of the first bit block (ie, the number of bits), in the first bit sub-block The position of the bits in the first block of bits is fixed.
  • the default means for a given length of the first bit block and a given length of the first bit sub-block, The position of the bits in the first bit sub-block in the first bit block is fixed.
  • the number of bits in the first bit sub-block is related to the number of bits in the second bit block.
  • the number of bits in the first bit block is independent of the number of bits in the second bit block.
  • the downlink information indicates an association between the first bit sub-block and the Q angle values.
  • the downlink information is carried by higher layer signaling.
  • the downlink information is carried by RRC signaling.
  • the downlink information is semi-statically configured.
  • the downlink information is common to the cell.
  • the downlink information is UE-specific.
  • the first wireless signal is UE-specific.
  • the corresponding constellation pattern adopted by the modulation mapper is Z-QAM.
  • Z is a positive integer power of 2.
  • said Z is equal to said X.
  • the Z is not equal to the X.
  • the downlink information is further used by the U2 to determine a location of the Q1 symbol groups in the Q symbol groups, the symbols in the Q1 symbol groups
  • the constellation pattern corresponding to the number is associated with the first bit sub-block, and the constellation pattern corresponding to the symbol in the symbol group that does not belong to the Q1 symbol group and the first One bit subblock is irrelevant.
  • the second bit block includes downlink control information, and the downlink control information indicates corresponding data ⁇ time domain resources occupied, frequency domain resources occupied, MCS, RV, NDI, At least one of the HARQ process numbers ⁇ .
  • Embodiment 2 illustrates a flow chart of wireless transmission, as shown in FIG.
  • the base station N3 is a serving cell maintenance base station of the UE U4.
  • the steps in block F2 are optional.
  • step S301 For N3, downlink information is transmitted in step S301; the first wireless signal is received in step S31.
  • step S401 For U4, downlink information is received in step S401; the first wireless signal is transmitted in step S41.
  • bits in the second bit block are used by the U4 to generate bits in the first bit block.
  • the first bit block includes a first bit sub-block, and bits in the second bit block are used by the U4 for channel coding input. Some or all of the symbols in the first symbol block are used by the U4 to generate the first wireless signal, the first symbol block being generated by performing a modulation mapping on the output of the channel coding.
  • a constellation pattern corresponding to at least one of the first symbol blocks is associated with the first bit sub-block.
  • the first bit block, the second bit block and the first bit sub-block respectively comprise a positive integer number of bits.
  • the first symbol block includes a positive integer number of symbols.
  • the downlink information is used by the U4 to determine an association between a constellation pattern corresponding to a symbol in the first symbol block and the first bit sub-block, a quantity of bits in the first bit block, The number of bits in the first bit sub-block, at least one of the positions of the first bit sub-block in the first bit block.
  • the first bit block is generated on the physical layer of the U4.
  • the first bit block does not belong to the first ratio.
  • a portion of the special sub-block is used by the U4 for the input of the channel coding.
  • the output of the channel coding corresponding to the channel coding is used by the N3 to recover bits of the first bit block that do not belong to the first bit sub-block.
  • a constellation pattern corresponding to the symbol in the first symbol block is used by the N3 to recover the first bit sub-block.
  • the N3 determines a constellation pattern corresponding to all the symbols in the first symbol block according to the received value of the first wireless signal.
  • the U4 generates the second bit block according to the scheduling result of the N3.
  • 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).
  • a physical layer control channel i.e., a physical layer channel that cannot be used to transmit physical layer data
  • the first wireless signal is transmitted on the PUCCH.
  • the first wireless signal is transmitted on the sPUCCH.
  • 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).
  • a physical layer data channel i.e., a physical layer channel that can be used to carry physical layer data.
  • the first wireless signal is transmitted on the PUSCH.
  • the second bit block includes uplink control information, and the uplink control information indicates at least one of ⁇ HARQ-ACK, CSI, SR, CRI ⁇ .
  • block F2 in Fig. 2 does not exist.
  • Embodiment 3 exemplifies a relationship between a first bit sub-block and a constellation pattern corresponding to a symbol in a first symbol block, as shown in FIG.
  • 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 any two different symbol groups corresponding to the two symbol groups are different; or 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 are in one-to-one correspondence with the Q symbol groups.
  • the corresponding constellation pattern is derived from the angle value corresponding to the QPSK rotation, the absolute value of the angle value being equal to 0 or greater than zero.
  • the first bit sub-block includes 2 bits.
  • the Q angle values are ⁇ 30°, -30°, ..., 45° ⁇ ; when the first bit is When 2 bits in the block are ⁇ 0, 1 ⁇ , the Q angle values are ⁇ -30°, 45°, ..., 30° ⁇ ; when 2 bits in the first bit sub-block are When ⁇ 1, 0 ⁇ , the Q angle values are ⁇ 45°, 30°, ..., -30° ⁇ ; when 2 bits in the first bit sub-block are ⁇ 1, 1 ⁇ , The Q angle values are ⁇ 25°, -25°, ..., 10° ⁇ , respectively.
  • the number of constellation points included in the constellation pattern corresponding to the arbitrary symbol and the first The bit subblock is irrelevant.
  • the number of constellation points included in the constellation pattern corresponding to all symbols in the first symbol block is the same.
  • the constellation pattern does not include the number of constellation points.
  • the bits in the first bit sub-block are sequentially arranged.
  • the bits in the first bit sub-block are consecutive in the first bit block in the present invention.
  • the bits in the first bit sub-block are discrete in the first bit block in the present invention.
  • the association of the Q angle values and the first bit sub-block is a default (ie, a configuration that does not require downlink signaling).
  • a constellation pattern corresponding to the symbol in the first symbol block is used to recover the first bit sub-block.
  • the first bit sub-block is used to determine a first sequence, the first sequence comprising the Q angle values.
  • the first sequence is ⁇ 30°, -30°, ..., 45° ⁇ ;
  • the first sequence is ⁇ -30°, 45°, ..., 30° ⁇ ;
  • the first sequence is ⁇ 45°, 30°, ..., -30° ⁇ ;
  • the first sequence is ⁇ 25°, -25°, ..., 10° ⁇ .
  • the first sequence belongs to a first sequence set, the first sequence set includes K sequences, and the first bit sub-block indicates the first sequence In the index in the first sequence set, the K is a positive integer greater than one.
  • the K sequences are respectively used to determine K reference quantities, and an index of the target sequence in the first sequence set is used to recover the first a bit sub-block, the target sequence being the sequence of the K sequences corresponding to the largest of the reference quantities.
  • the received value of the second node of the first wireless signal in the present invention in the present invention is used to determine the K reference quantities.
  • the second node in the present invention is according to ⁇ the corresponding sequence a constellation pattern of each symbol in the first symbol block, the received value of the second node in the present invention in the present invention is calculated by the received value of the second node in the present invention.
  • the reference amount is a likelihood likelihood.
  • Embodiment 4 illustrates a schematic diagram of the relationship between ⁇ first bit block, second bit block ⁇ and the first wireless signal, as shown in FIG.
  • the bits in the second bit block are used to generate bits in the first bit block.
  • the first bit block includes a first bit sub-block and a second bit sub-block, ⁇ bits in the second bit block, bits in the second bit sub-block ⁇ are used in the present invention Channel coded input. Some or all of the symbols in the first symbol block are used to generate the first wireless signal, the first symbol block being generated by performing a modulation mapping on the output of the channel coding.
  • a constellation pattern corresponding to at least one of the first symbol blocks is associated with the first bit sub-block.
  • the first bit block, the second bit block, the The first bit sub-block and the second bit sub-block each comprise a positive integer number of bits.
  • the first symbol block includes a positive integer number of symbols.
  • the channel coding includes rate matching.
  • a constellation pattern corresponding to a partial symbol in the first symbol block is associated with the first bit sub-block, and the remaining symbols in the first symbol block are The corresponding constellation pattern is independent of the first bit sub-block.
  • a constellation pattern corresponding to all symbols in the first symbol block is associated with the first bit sub-block.
  • the constellation pattern does not include the number of constellation points.
  • the output of the channel coding is independent of the first bit sub-block.
  • 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.
  • the bits in the first bit block are sequentially arranged, and the bits in the second bit block are sequentially arranged.
  • the bits in the first bit sub-block are sequentially arranged.
  • the positions of the bits in the first bit sub-block in the first bit block are continuous.
  • the positions of the bits in the first bit sub-block in the first bit block are discrete.
  • the symbols in the first symbol block are sequentially arranged.
  • the first symbol block is an output after the output of the channel coding is sequentially subjected to scrambling and a modulation mapper.
  • all symbols in the first symbol block are used to generate the first wireless signal.
  • the partial symbol and the second symbol block in the first symbol block are used to generate the first wireless signal.
  • the second symbol block includes a reference signal.
  • the second symbol block comprises a CSI-RS.
  • the second symbol block is independent of the first symbol block.
  • the first wireless signal is an output after all symbols in the first symbol block are sequentially passed through a layer mapper, a precoding, a resource particle mapper, and a wideband symbol.
  • the first wireless signal is a partial symbol in the first symbol block and the second symbol block sequentially passes through a layer mapper, a precoding, a resource particle mapper, a wideband symbol The output after the occurrence.
  • the first wireless signal is that all symbols in the first symbol block sequentially pass through a layer mapper, a conversion precoder, a precoding, a resource particle mapper, and a broadband symbol occurs. Output.
  • the first wireless signal is a partial symbol in the first symbol block and the second symbol block sequentially passes through a layer mapper, a conversion precoder, precoding, resource particles Mapper, the output after the occurrence of the wideband symbol.
  • the wideband symbol is an OFDM symbol.
  • the wideband symbol is an FBMC symbol.
  • the first bit block is independent of bits other than the second bit block.
  • the arbitrary bit is equal to the sum of the positive integer bits in the second bit block modulo 2 .
  • the arbitrary bit is modulo the sum of the positive integer bits in the second bit block, and then the scrambling code Obtained after the corresponding bit in the sequence is XORed.
  • the channel coding is a polar code.
  • the channel coding is one of ⁇ LDPC code, turbo code, convolutional code ⁇ .
  • one bit does not exist in the first bit block and belongs to the first bit sub-block and the second bit sub-block.
  • the input of the channel coding includes ⁇ all bits in the second bit block, all bits in the second bit sub-block, all bits in the third bit block ⁇ The value of all the bits in the third bit block is preset.
  • all bits in the third bit block are zero.
  • the first bit sub-block is a subset of the first bit block, and a position of the first bit sub-block in the first bit block is default.
  • the number of bits in the first bit sub-block is related to the number of bits in the second bit block.
  • the number of bits in the first bit block is independent of the number of bits in the second bit block.
  • Embodiment 5 illustrates a schematic diagram of the positions of Q symbol groups in a first symbol block, as shown in FIG.
  • 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 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. The positions of all of the symbols within the set of symbols in the first block of symbols are contiguous.
  • the Q is related to the number of bits in the first bit sub-block in the present invention.
  • the Q is equal to q1; when the bits in the first bit sub-block are When the number is equal to y1, the Q is equal to p1.
  • the y1 is smaller than the x1, and the p1 is less than or equal to the q1.
  • the x1, the y1 and the q1, the p1 respectively Is a positive integer.
  • the Q is related to the number of bits in the second bit block in the present invention.
  • the Q when the number of bits in the second bit block is equal to x2, the Q is equal to q2; when the number of bits in the second bit block is equal to At y2, the Q is equal to p2.
  • y2 is smaller than the x2, and the p2 is less than or equal to the q2.
  • the x2, the y2, the q2 and the p2 are positive integers, respectively.
  • the Q is related to the number of symbols in the first symbol block.
  • the Q is fixed.
  • the positions of all the symbols in the symbol group in the first symbol block are default (ie, the division of the symbol group does not require a signaling configuration).
  • Embodiment 6 exemplifies a position of a Q symbol group in a first symbol block, as shown in FIG.
  • 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 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. The positions of any two of the symbols within the set of symbols in the first block of symbols are discontinuous.
  • any Q consecutive symbols in the first symbol block belong to the Q symbol groups, respectively.
  • the position of all the symbols in the symbol group in the first symbol block is default (ie, the division of the symbol group does not require a signaling configuration).
  • Embodiment 7 exemplifies a structural block diagram of a processing device in a first node for wireless communication, as shown in FIG.
  • the first node device 200 is mainly composed of a first processing module 201 and a first transmitting 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 the first wireless signal.
  • the bits in the second block of bits are used by the first processing module 201 to generate bits in the first block of bits.
  • the first bit block includes a first bit sub-block, and bits in the second bit block are used by the first processing module 201 for the input of the channel coding. Some or all of the symbols in the first symbol block are used by the first transmitting module 202 to generate the first wireless signal, the first symbol block being generated by performing a modulation mapping on the output of the channel coding.
  • a constellation pattern corresponding to at least one of the first symbol blocks is associated with the first bit sub-block.
  • the first bit block, the second bit block and the first bit sub-block respectively comprise a positive integer number of bits.
  • the first symbol block includes a positive integer number of symbols.
  • the first bit block includes a second bit sub-block, and bits in the second bit sub-block are used by the first processing module 201 for the input of the channel coding.
  • the CRC bit block of the second bit block is used by the first processing module 201 to generate the first bit block.
  • 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 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.
  • the first bit sub-block is a subset of the first bit block, and a position of the first bit sub-block in the first bit block is default.
  • the first processing module 201 is further configured to receive downlink information, where the device in the first node is a user equipment.
  • the first processing module 201 is further configured to send the downlink.
  • the device in the first node is a base station device.
  • the downlink information is used to determine ⁇ an association between a constellation pattern corresponding to a symbol in the first symbol block and the first bit sub-block, in the first bit block.
  • the device in the first node is a base station device, and the second bit block includes downlink control information.
  • the device in the first node is a user equipment
  • the second bit block includes uplink control information
  • Embodiment 8 exemplifies a structural block diagram of a processing device in a second node for wireless communication, as described in FIG.
  • the second node device 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 the first wireless signal
  • the second processing module 302 is configured to perform channel decoding to recover the first bit block.
  • bits in the second bit block are used to generate bits in the first bit block.
  • the first bit block includes a first bit sub-block, and bits in the second bit block are used for input of channel coding corresponding to the channel coding. Some or all of the symbols in the first symbol block are used to generate the first wireless signal, the first symbol block being generated by performing a modulation mapping on the output of the channel coding.
  • a constellation pattern corresponding to at least one of the first symbol blocks is associated with the first bit sub-block.
  • the first bit block, the second bit block and the first bit sub-block respectively comprise a positive integer number of bits.
  • the first symbol block includes a positive integer number of symbols.
  • the first bit block includes a second bit sub-block, and bits in the second bit sub-block are used for the input of the channel coding.
  • the CRC bit block of the second bit block is used to generate the first bit block.
  • 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 one a number, the constellation pattern corresponding to any two different of the Q symbol groups is different; or the Q is 1.
  • the symbol group includes a positive integer number of the symbols.
  • the first bit sub-block is a subset of the first bit block, and a position of the first bit sub-block in the first bit block is default.
  • the second processing module 302 is further configured to receive downlink information, where the device in the second node is a user equipment;
  • the second processing module 302 is further configured to send downlink information, where the device in the second node is a base station device.
  • the downlink information is used to determine ⁇ an association between a constellation pattern corresponding to a symbol in the first symbol block and the first bit sub-block, in the first bit block
  • the device in the second node is a user equipment, and the second bit block includes downlink control information.
  • the device in the second node is a base station device, and the second bit block includes uplink control information.
  • 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.
  • a constellation pattern corresponding to the symbol in the first symbol block is used by the second processing module 302 to recover the first bit sub-block.
  • the second processing module 302 determines a constellation pattern corresponding to the symbol in the first symbol block according to the received value of the first wireless signal.
  • each module unit in the above embodiment may be implemented in hardware form or in the form of a software function module.
  • the application is not limited to any specific combination of software and hardware.
  • the UE or the terminal in the present invention includes but is not limited to a mobile phone, a tablet computer, a notebook, an internet card, and an object link.
  • the base station or system equipment in the present invention includes, but is not limited to, a macro communication base station, a micro cell base station, a home base station, a relay base station, and the like.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)

Abstract

La présente invention concerne un terminal dans des communications sans fil, et un procédé et un appareil dans une station de base. Un premier nœud génère un premier bloc de bits, exécute un code de canal, et envoie enseuite un premier signal sans fil. Un bit dans un second bloc de bits est utilisé pour générer un bit dans le premier bloc de bits. Le premier bloc de bits comprend un premier sous-bloc de bits, et le bit dans le second bloc de bits est utilisé pour l'entrée du code de canal. Une partie ou tous les symboles dans un premier bloc de symboles sont utilisés pour générer le premier signal sans fil, et le premier bloc de symboles est généré par réalisation d'une modulation et d'un mappage sur la sortie du code de canal. Un motif de constellation correspondant à au moins un symbole dans le premier bloc de symboles est associé au premier sous-bloc de bits. Au moyen du procédé de la présente invention, la probabilité de fausse alarme du CRC peut être réduite, et la redondance supplémentaire provoquée par l'augmentation du nombre de bits CRC est évitée.
PCT/CN2017/073082 2017-02-08 2017-02-08 Terminal dans des communications sans fil, et procédé et appareil dans une station de base Ceased WO2018145256A1 (fr)

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CN201780068874.2A CN109952726B (zh) 2017-02-08 2017-02-08 一种被用于无线通信的终端、基站中的方法和装置
PCT/CN2017/073082 WO2018145256A1 (fr) 2017-02-08 2017-02-08 Terminal dans des communications sans fil, et procédé et appareil dans une station de base

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