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CN-122001554-A - Information transmission method, apparatus, storage medium, and program product

CN122001554ACN 122001554 ACN122001554 ACN 122001554ACN-122001554-A

Abstract

The embodiment of the disclosure provides an information transmission method, device, storage medium and program product, which relate to the technical field of communication and can adapt the number of supported DMRS ports to the number of increased transmission data layers. The method comprises the steps of receiving first indication information from a second node, wherein the first indication information is used for indicating the DMRS configuration, and the DMRS configuration comprises pattern information corresponding to the DMRS and/or OCC information corresponding to the DMRS.

Inventors

  • MEI MENG
  • GAO BO
  • ZHANG YANG
  • ZHANG YIFENG
  • GUO XIAOLONG

Assignees

  • 中兴通讯股份有限公司

Dates

Publication Date
20260508
Application Date
20241108

Claims (20)

  1. 1. An information transmission method, applied to a first node, comprising: And receiving first indication information from the second node, wherein the first indication information is used for indicating demodulation reference signal (DMRS) configuration, and the DMRS configuration is associated with pattern information corresponding to the DMRS and/or orthogonal code (OCC) information corresponding to the DMRS.
  2. 2. The method of claim 1, wherein the pattern information comprises at least one of a number of Code Division Multiplexing (CDM) groups, a length of one CDM group on one time domain symbol, a position and/or a number of resource element REs occupied by one CDM group mapping at a time, a position and/or a number of time domain symbols occupied by one CDM group mapping at a time, and a number of maximum DMRS ports supported by one CDM group.
  3. 3. The method of claim 2 wherein one CDM group has a length of M and the number of REs occupied by one CDM group map is M.
  4. 4. The method of claim 2, wherein a maximum number of DMRS ports supported by a plurality of CDM groups over one time domain symbol is P, the P being determined based on a maximum number of DMRS ports supported by one CDM group M and the number of the plurality of CDM groups.
  5. 5. The method of claim 2 wherein REs occupied by multiple DMRS port mappings within a CDM group are comb-shaped with comb spacing of 2,3,4,6, or 12 REs.
  6. 6. The method of claim 2, wherein the number of CDM groups comprises at least one of 2, 3,4, 6, 8, 12.
  7. 7. The method of claim 1, wherein the OCC information comprises at least one of a length of a frequency domain OCC, a time domain OCC length, and one or more OCC sequences corresponding to different lengths.
  8. 8. The method of claim 7, wherein a plurality of DMRS ports supported by one CDM group correspond to a plurality of different OCC sequences, each of the plurality of different OCC sequences having a length equal to a length of the one CDM group.
  9. 9. The method of claim 7, wherein the length of the OCC sequence comprises at least one of 1,2,3, 4, 6, 8, 12.
  10. 10. The method of claim 9, wherein the length-2 OCC sequence comprises at least one of [ +1, +1] or [ +1, -1].
  11. 11. The method of claim 9, wherein length-3 OCC sequence comprises at least one of:
  12. 12. the method of claim 9, wherein length-4 OCC sequence comprises at least one of: [ +1, +1], [ +1, -1, +1, -1], [ +1, +j, -1, -j ] or [ +1, -j, -1, +j ]; or length 4 OCC sequence comprising at least one of: [ +1, +1], [ +1, -1, +1, -1], [ +1, -1, -1] or [ +1, -1, -1, +1].
  13. 13. The method of claim 9, wherein the length-6 OCC sequence comprises at least one of: [+1,+1,+1,+1,+1,+1], Or alternatively
  14. 14. The method of claim 9, wherein an OCC sequence of length 8 comprises at least one of: [+1,+1,+1,+1,+1,+1,+1,+1], [+1,-j,-1,+j,+1,-j,-1,+j], [+1,-1,+1,-1,+1,-1,+1,-1], [ +1, +j, -1, -j, +1, +j, -1, -j ] or Or length 8 OCC sequence includes one of: [1,1,1,1,1,1,1,1], [1,-1,1,-1,1,-1,1,-1], [1,1,-1,-1,1,1,-1,-1], [1,-1,-1,1,1,-1,-1,1], [1,1,1,1,-1,-1,-1,-1], [1,-1,1,-1,-1,1,-1,1], [1,1,-1,-1,-1,-1,1,1], [1,-1,-1,1,-1,1,1,-1]。
  15. 15. The method of claim 9, wherein length 12 OCC sequence comprises at least one of: [+1,+1,+1,+1,+1,+1,+1,+1,+1,+1,+1,+1], [+1,-j,-1,+j,+1,-j,-1,+j,+1,-j,-1,+j], [+1,-1,+1,-1,+1,-1,+1,-1,+1,-1,+1,-1], [+1,+j,-1,-j,+1,+j,-1,-j,+1,+j,-1,-j],
  16. 16. The method of claim 7, wherein the OCC sequence is an order of a plurality of OCC sequences generated based on a sequence generation manner or the OCC sequence is an order of an adjusted order of the plurality of OCC sequences generated based on the sequence generation manner.
  17. 17. The method of claim 2 wherein the mapping occupied REs on one time domain symbol by the one CDM group comprises at least one of: 6 REs within 1 PRB, 4 REs within 1 PRB, 3 REs within 1 PRB, 2 REs within 1 PRB, 1 RE within 1 PRB, And the length of M RE, M and OCC sequences in N PRBs is related, and N is a positive integer greater than or equal to 2.
  18. 18. The method of claim 17, wherein in the case where one CDM group maps occupied REs on one time domain symbol includes the REs within the span N PRBs, a number of consecutively scheduled PRBs is X, where X is equal to a least common multiple of an OCC length and a number of REs occupied by one CDM group within one PRB divided by a number of REs occupied by the one CDM group within one PRB.
  19. 19. The method of claim 17, wherein, in the case where the mapping of the occupied REs on one time domain symbol by one CDM group includes the REs within the N-spanning PRBs, a starting position of the N PRBs is offset by a positive integer multiple of Y from a position of a common resource block, wherein Y is equal to a length of OCC and a least common multiple of the number of REs occupied by one CDM group within one PRB divided by the number of REs occupied by one CDM group within one PRB.
  20. 20. The method of claim 2, wherein the one CDM is associated with one OCC length, the OCC length being at least one of a frequency domain OCC length, a time domain OCC length; One DMRS port within one CDM group is associated with one OCC sequence of a plurality of OCC sequences corresponding to the one OCC length, or with one multi-level OCC sequence, each of which is smaller than the one OCC sequence in length, and the multi-level OCC sequences are combined into one OCC sequence associated with the DMRS port.

Description

Information transmission method, apparatus, storage medium, and program product Technical Field The present disclosure relates to the field of communications technologies, and in particular, to an information transmission method, apparatus, storage medium, and program product. Background In a communication system, demodulation reference signals (DEDICATED DEMODULATION REFERENCE SIGNAL, DMRS) are used to demodulate signals when transmitting data. When the DMRS is transmitted, one DMRS port corresponds to a plurality of DMRSs, and different DMRS ports are associated with different transmission data layers. In order to increase the transmission capacity of the communication system, the number of transmission data layers may be increased. However, the number of DMRS ports supported by the current user is small, and the number of increased transmission data layers cannot be satisfied. Disclosure of Invention The embodiment of the disclosure provides an information transmission method, an information transmission device, a storage medium and a program product, which can adapt the number of supported DMRS ports to the number of increased transmission data layers. In one aspect, an information transmission method is provided, which includes receiving first indication information from a second node, where the first indication information is used to indicate DMRS configuration, and the DMRS configuration includes pattern information corresponding to a DMRS and/or orthogonal code (orthogonal cover code, OCC) information corresponding to the DMRS. In yet another aspect, an information transmission method is provided, which includes transmitting, to a first node, first indication information for indicating DMRS configuration, where the DMRS configuration includes pattern information corresponding to a DMRS and/or OCC information corresponding to the DMRS. In still another aspect, an information transmission apparatus is provided, which includes a receiving unit, and a receiving unit, configured to receive first indication information from a second node, where the first indication information is used to indicate DMRS configuration, and the DMRS configuration includes pattern information corresponding to a DMRS and/or OCC information corresponding to the DMRS. In still another aspect, an information transmission apparatus is provided, which includes a transmitting unit, and a transmitting unit configured to transmit first indication information to a first node, where the first indication information is configured to indicate DMRS configuration, and the DMRS configuration includes pattern information corresponding to a DMRS and/or OCC information corresponding to the DMRS. In yet another aspect, an electronic device is provided, including a memory and a processor, the memory and the processor being coupled, the memory being configured to store a computer program, the processor implementing the information transmission method according to any of the embodiments described above when executing the computer program. In yet another aspect, a computer readable storage medium is provided, on which computer program instructions are stored, which when executed by a processor implement the information transmission method according to any of the above embodiments. In a further aspect, a computer program product is provided, comprising computer program instructions which, when executed by a processor, implement the information transmission method according to any of the embodiments described above. The embodiment of the disclosure discloses that a first node may receive first indication information sent by a second node, where the first indication information is used to indicate DRMS configuration. The DMRS configuration includes pattern information corresponding to the DMRS and/or OCC information corresponding to the DMRS. Because the pattern information and the OCC information corresponding to the DMRS configuration are related to the maximum DMRS port number supported by the DMRS configuration, the maximum DMRS port number corresponding to the DMRS configuration can be increased by indicating the pattern information and/or the OCC information supporting more maximum DMRS port numbers, so that the method can be suitable for the increased number of transmission data layers. Drawings In order to more clearly illustrate the technical solutions of the present disclosure, the drawings that need to be used in some embodiments of the present disclosure will be briefly described below, and it is apparent that the drawings in the following description are only drawings of some embodiments of the present disclosure, and other drawings may be obtained according to these drawings to those of ordinary skill in the art. Fig. 1 is a schematic diagram of a dual symbol DMRS mapping provided by some embodiments of the present disclosure; fig. 2 is a schematic diagram of a single symbol DMRS mapping provided by some embodiments of the present disclosu