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CN-122002552-A - Method and communication device for signal transmission

CN122002552ACN 122002552 ACN122002552 ACN 122002552ACN-122002552-A

Abstract

The application provides a signal transmission method and a communication device. The method may include receiving a first signal including X OOK symbols, the X OOK symbols including X1 first symbols and X2 second symbols, the first symbols being different from the second symbols, the X1 first symbols being generated based on N first sequences or the X1 first symbols being generated based on 1 second sequences, the N first sequences belonging to sequences of M sequences, the 1 second sequences belonging to sequences of L sequences, the L sequences being a subset of the M sequences, M, N, X being an integer greater than 1, L being an integer greater than or equal to 1 and less than M, X1 and X2 being integers greater than or equal to 0, and X1+X2=X. Based on the method, the number of the candidate sequences is relatively small, so that the correlation between different sequences in the candidate sequences is low, the probability of configuring the sequences with high correlation by two cells can be reduced, and the signal interference between the cells is reduced.

Inventors

  • Xue Daifan
  • TIE XIAOLEI
  • LONG YI

Assignees

  • 华为技术有限公司

Dates

Publication Date
20260508
Application Date
20241107

Claims (20)

  1. 1. A method of signal transmission, comprising: Receiving a first signal, wherein the first signal comprises X on-off keying OOK symbols, the X OOK symbols comprise X1 first symbols and X2 second symbols, the first symbols and the second symbols are different, and the X1 first symbols are generated based on N first sequences or the X1 first symbols are generated based on 1 second sequence; Wherein the N first sequences belong to sequences of M sequences, the 1 second sequences belong to sequences of L sequences, the L sequences are subsets of the M sequences, M, N, X are integers greater than 1, L is an integer greater than 1 or equal to 1 and less than M, X1 and X2 are integers greater than or equal to 0, x1+x2=x.
  2. 2. A method of signal transmission, comprising: transmitting a first signal, wherein the first signal comprises X on-off keying OOK symbols, the X OOK symbols comprise X1 first symbols and X2 second symbols, the first symbols and the second symbols are different, and the X1 first symbols are generated based on N first sequences or the X1 first symbols are generated based on 1 second sequence; Wherein the N first sequences belong to sequences of M sequences, the 1 second sequences belong to sequences of L sequences, the L sequences are subsets of the M sequences, M, N, X are integers greater than 1, L is an integer greater than 1 or equal to 1 and less than M, X1 and X2 are integers greater than or equal to 0, x1+x2=x.
  3. 3. A method according to claim 1 or 2, characterized in that, The X1 first symbols are generated based on N first sequences, including that in the case that N sequences are configured, the X1 first symbols are generated based on N first sequences; the X1 first symbols are generated based on 1 second sequence, including that in case 1 sequence is configured, the X1 first symbols are generated based on 1 second sequence.
  4. 4. A method according to any one of claims 1 to 3, wherein the M sequences consist of K sets of sequences, K being an integer greater than 1, each set of sequences in the K sets of sequences corresponding to at least one root, different sets of sequences in the K sets of sequences corresponding to different roots.
  5. 5. The method of claim 4, wherein the sequences of the same root in the same set of sequences in the K sets of sequences correspond to different cyclic shift values.
  6. 6. A method according to any one of claims 1 to 3, wherein the M sequences consist of K sets of sequences, K being an integer greater than 1, each set of sequences of the K sets corresponding to at least one cyclic shift value, different sets of sequences of the K sets corresponding to different cyclic shift values.
  7. 7. The method of claim 6, wherein sequences of the same cyclic shift value in the same set of sequences in the K sets of sequences correspond to different roots.
  8. 8. The method of any one of claims 1 to 7, wherein the M sequences consist of K sets of sequences, the L sequences consist of K1 sets of sequences of the K sets, K is an integer greater than 1, and K1 is an integer greater than or equal to 1 and less than K.
  9. 9. The method of claim 8, wherein different ones of the K sets of sequences correspond to different roots, the L sequences consisting of K1 sets of sequences of the K sets of sequences, comprising: the L sequences are composed of K1 group sequences corresponding to a first root in the K group sequences, wherein the first root is predefined or configured.
  10. 10. The method of claim 8 or 9, wherein the X1 first symbols are generated based on 1 second sequence, the method further comprising: And receiving or transmitting first indication information, wherein the first indication information indicates a cyclic shift value corresponding to the second sequence.
  11. 11. The method of claim 9, wherein different ones of the K sets of sequences correspond to different cyclic shift values, the L sequences consisting of K1 sets of sequences of the K sets of sequences, comprising: The L sequences consist of K1 sets of sequences of the K sets of sequences corresponding to a first cyclic shift value, the first cyclic shift value being predefined or configured.
  12. 12. The method according to claim 8 or 11, wherein the X1 first symbol is generated based on 1 second sequence, the method further comprising: And receiving or transmitting second indication information, wherein the second indication information indicates the root corresponding to the second sequence.
  13. 13. The method of any one of claims 1 to 7, wherein the M sequences consist of K sets of sequences, the L sequences consist of K2 sequences of each set of sequences in the K sets, K is an integer greater than 1, and K2 is an integer greater than or equal to 1 and less than M/K.
  14. 14. The method of claim 13, wherein different sequences in the same set of K sequences correspond to different cyclic shift values, wherein the L sequences consist of K2 sequences for each set of K sequences, comprising: The L sequences consist of K2 sequences of each of the K sets of sequences corresponding to a first cyclic shift value, the first cyclic shift value being predefined or configured.
  15. 15. The method of claim 13 or 14, wherein the X1 first symbol is generated based on 1 second sequence, the method further comprising: And receiving or sending third indication information, wherein the third indication information indicates the root corresponding to the second sequence.
  16. 16. The method according to claim 11 or 14, wherein the first cyclic shift value is 0.
  17. 17. The method of claim 13, wherein different sequences in the same set of sequences in the K sets of sequences correspond to different roots, the L sequences consisting of K2 sequences for each set of sequences in the K sets of sequences, comprising: The L sequences are composed of K2 sequences corresponding to a first root in each group of sequences in the K groups, wherein the first root is predefined or configured.
  18. 18. The method of claim 13 or 17, wherein the X1 first symbol is generated based on 1 second sequence, the method further comprising: And receiving or transmitting fourth indication information, wherein the fourth indication information indicates a cyclic shift value corresponding to the second sequence.
  19. 19. The method according to any one of claims 1 to 18, further comprising: Receiving or transmitting a reference signal, where the reference signal includes Y OOK symbols, the Y OOK symbols include Y1 first symbols and Y2 second symbols, the Y1 first symbols are generated based on a third sequence, the third sequence is one of the N first sequences, or the third sequence is the second sequence, Y is an integer greater than 1, Y1 and Y2 are integers greater than or equal to 0, and y1+y2=y.
  20. 20. The method of claim 19, wherein the reference signal is a low power synchronization signal LP-SS.

Description

Method and communication device for signal transmission Technical Field The present application relates to the field of wireless communications, and more particularly, to a method of signal transmission and a communication apparatus. Background The terminal device may receive signals (e.g., wake up radio, WUR) through a separate low power small circuit, such as a wake up radio, and the primary receiver may be in a sleep state. Taking the wake-up signal as an example, when the terminal device detects the wake-up signal through WUR, the terminal device triggers the primary receiver to wake-up. After the primary receiver wakes up, the terminal device may receive paging, data, etc. through the primary receiver. How to design the sequence for generating the wake-up signal to reduce the interference is a considerable problem. Disclosure of Invention The application provides a signal transmission method and a communication device, which are used for reducing signal interference among cells as much as possible by designing a sequence of generated signals (such as wake-up signals and the like). In a first aspect, a method of signal transmission is provided. The method may be applied to the terminal side, that is, the method may be performed by the terminal device, or may be performed by a component of the terminal device (for example, a chip or a chip system or a circuit or a communication module), which is not limited in the present application. The following description will mainly take a terminal device as an example. The method may include receiving a first signal, the first signal including X on-off keying OOK symbols, the X OOK symbols including X1 first symbols and X2 second symbols, the first symbols and the second symbols being different, wherein the X1 first symbols are generated based on N first sequences or the X1 first symbols are generated based on1 second sequences, wherein the N first sequences belong to sequences of M sequences, the 1 second sequences belong to sequences of L sequences, the L sequences are subsets of the M sequences, M, N, X is an integer greater than 1, L is an integer greater than 1 or equal to 1 and less than M, X1 and X2 are integers greater than or equal to 0, and X1+X2=X. Optionally, the method further comprises correlating the first signal based on the first sequence or the second sequence. Optionally, the first signal is used to instruct one or more terminal devices to receive the page. In a second aspect, a method of signal transmission is provided. The method may be applied to the network side, that is, the method may be performed by the network device, or may be performed by a component (for example, a chip or a chip system or a circuit or a communication module) of the network device, which is not limited in the present application. The following description will mainly take network devices as examples. The method may include transmitting a first signal, the first signal including X on-off keying OOK symbols, the X OOK symbols including X1 first symbols and X2 second symbols, the first symbols and the second symbols being different, wherein the X1 first symbols are generated based on N first sequences or the X1 first symbols are generated based on 1 second sequences, wherein the N first sequences belong to sequences of M sequences, the 1 second sequences belong to sequences of L sequences, the L sequences are subsets of the M sequences, M, N, X is an integer greater than 1, L is an integer greater than 1 or equal to 1 and less than M, X1 and X2 are integers greater than or equal to 0, and X1+X2=X. Optionally, the method further comprises determining the first signal. Optionally, the first signal is used to instruct one or more terminal devices to receive the page. The first symbol may be generated based on the first sequence or may be generated based on the second sequence. The N first sequences are sequences selected from M sequences (namely M candidate sequences), the second sequences are sequences selected from L sequences (namely L candidate sequences), the number of the candidate sequences of the second sequences is relatively small by designing the L sequences as subsets of the M sequences, so that the correlation between different sequences in the candidate sequences is low, and when two cells (such as adjacent cells) respectively select one sequence from the L sequences for configuration, the probability of configuring the sequences with high correlation between the two cells can be reduced, and signal interference between the cells is further reduced. Further, the first sequences may additionally carry information, i.e. when in one cell, the first symbols are generated based on the first sequences, each first symbol may be generated based on one of the N first sequences, through the process of sequence selection (selecting one of the N first sequences), and the second sequences may not additionally carry information, i.e. when in one cell, the first symbols are