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CN-122001713-A - Communication method and communication device

CN122001713ACN 122001713 ACN122001713 ACN 122001713ACN-122001713-A

Abstract

The application provides a communication method and a communication device, wherein the communication device is used for matching the channel information of an estimated interference channel with the interference channel information referenced in a channel map so as to acquire the channel characteristic information of the interference channel which is relatively close to the channel information of the current first channel from the channel map. In this way, channel characteristic information of an interference channel that interferes with communication of the communication apparatus can be acquired. Because the channel characteristic information of the interference channel reflects the current communication environment of the communication device, the method is beneficial to acquiring the channel characteristic information which can accurately reflect the current communication environment of the communication device based on the scheme. The channel characteristic information can be used for auxiliary communication, which is beneficial to improving frequency efficiency, or can be used for high-precision positioning and the like.

Inventors

  • LING CEN
  • QIN QIBO
  • Xiao Chaokun
  • ZHANG BIJUN

Assignees

  • 华为技术有限公司

Dates

Publication Date
20260508
Application Date
20241104

Claims (20)

  1. 1. A method of communication, comprising: Acquiring channel information of a first channel, wherein the first channel is an interference channel; And acquiring channel characteristic information of a first subarea based on the correlation degree of the channel information of the first channel and the interference channel information of the first subarea, wherein the first subarea is one or more of a plurality of subareas included in a serving cell of first terminal equipment, and the interference channel information of the first subarea is the reference interference channel information.
  2. 2. The method of claim 1, wherein the method is applied to the first terminal device, the method further comprising: acquiring channel information of a second channel, wherein the second channel is a communication channel of the first terminal equipment in the service cell; the obtaining the channel characteristic information of the first sub-region based on the correlation degree of the channel information of the first channel and the interference channel information of the first sub-region includes: And acquiring channel characteristic information of the first sub-area based on the correlation degree of the channel information of the first channel and the interference channel information of the first sub-area and the correlation degree of the channel information of the second channel and the communication channel information of the first sub-area, wherein the communication channel information of the first sub-area is the reference communication channel information.
  3. 3. The method according to claim 1 or 2, wherein the method is applied to the first terminal device, the interference channel information of the first sub-region comprises one or more eigenvectors of an interference channel that interferes with the first sub-region, and the channel information of the first channel comprises one or more eigenvectors of the first channel.
  4. 4. A method as claimed in claim 3, wherein the method further comprises: and receiving first indication information, wherein the first indication information is used for indicating the number of eigenvectors included in the interference channel information of the first subarea.
  5. 5. The method according to any one of claims 1 to 4, wherein the method is applied to the first terminal device, and before the obtaining the channel characteristic information of the first sub-area based on the correlation degree of the channel information of the first channel and the interference channel information of the first sub-area, the method further comprises: And receiving a channel information set of a first area, wherein the first area is an area to which the position of the first terminal equipment belongs, the first area belongs to the service cell, the first area comprises a plurality of subareas, the channel information set comprises channel information of the subareas included in the first area, and the channel information of the subareas comprises interference channel information of the first subarea.
  6. 6. The method of claim 5, wherein the interfering channel information for the first sub-region comprises channel information for a plurality of interfering channels, the method further comprising: And receiving second indication information, wherein the second indication information is used for indicating the number of interference channels.
  7. 7. The method according to any one of claims 1 to 6, wherein the method is applied to the first terminal device, the method further comprising, prior to the acquiring the channel information of the first channel: And determining one or more interference cells according to the measurement result of the received reference signals, wherein the first channel corresponds to one or more of the one or more interference cells.
  8. 8. The method of claim 7, wherein the method further comprises: and receiving third indication information, wherein the third indication information is used for indicating the number of the interference cells.
  9. 9. The method according to any of claims 1 to 8, wherein the method is applied to the first terminal device, the method further comprising: And receiving fourth indication information, wherein the fourth indication information is used for indicating the information type contained in the channel characteristic information of the first subarea.
  10. 10. The method of claim 1, wherein the method is applied to a network device, the interfering channel information for the first sub-region comprises one or more eigenvectors of interfering channels that interfere with other sub-regions than the first sub-region, and the channel information for the first channel comprises one or more eigenvectors of the first channel.
  11. 11. The method of claim 1 or 10, wherein the method is applied to a network device, the method further comprising: Acquiring channel information of a second channel, wherein the second channel is a communication channel between the network equipment and second terminal equipment; And acquiring channel characteristic information of a second subarea based on the correlation degree of the channel information of the second channel and the communication channel information of the second subarea, wherein the second subarea is one or more of a plurality of subareas included in a service cell of the second terminal equipment, and the communication channel information of the second subarea is reference communication channel information.
  12. 12. The method according to any one of claims 1 to 11, wherein said obtaining channel characteristic information of said first sub-region, Receiving channel characteristic information of the first subarea; before said receiving the channel characteristic information of the first sub-region, the method further comprises: and sending the indication information of the first subarea.
  13. 13. The method of claim 12, wherein the interfering channel information for the first sub-region comprises channel information for a plurality of interfering channels; The method further comprises the steps of: Transmitting indication information of one or more interference channels of the plurality of interference channels, wherein the one or more interference channels are determined based on the correlation degree of the channel information of the first channel and the channel information of the plurality of interference channels; The obtaining the channel characteristic information of the first sub-region includes: Channel characteristic information of the one or more interference channels in the first sub-area is acquired.
  14. 14. The method according to any one of claims 1 to 13, wherein prior to said acquiring channel information of the first channel, the method further comprises: acquiring a first parameter set, wherein the first parameter set comprises parameters for generating a first reference signal; The obtaining the channel information of the first channel includes: and carrying out channel estimation based on the first parameter set and the received first reference signal to obtain channel information of the first channel.
  15. 15. The method according to any of claims 1 to 14, wherein the channel characteristic information of the first sub-area is used for one or more of channel measurement, channel estimation or positioning of the first terminal device.
  16. 16. A method of communication, comprising: Receiving indication information of a first subarea, wherein the first subarea is one or more of a plurality of subareas included in a serving cell of first terminal equipment, the first subarea is determined based on the correlation degree of channel information of a first channel and interference channel information of the first subarea, the first channel is an interference channel, and the interference channel information of the first subarea is reference interference channel information; and transmitting the channel characteristic information of the first subarea.
  17. 17. The method of claim 16, wherein the interfering channel information for the first sub-region comprises one or more eigenvectors of an interfering channel that interferes with the first sub-region, and wherein the channel information for the first channel comprises one or more eigenvectors of the first channel.
  18. 18. The method of claim 16 or 17, wherein prior to said receiving the indication of the first sub-area, the method further comprises: And transmitting a channel information set of a first area, wherein the first area is an area to which the position of the first terminal equipment belongs, and the first area belongs to the service cell, the first area comprises a plurality of subareas, the channel information set comprises channel information of the subareas included in the first area, and the channel information of the subareas comprises interference channel information of the first subarea.
  19. 19. The method of claim 16, wherein the interference channel information for the first sub-region comprises one or more eigenvectors of interference channels that interfere with other sub-regions than the first sub-region, and wherein the channel information for the first channel comprises one or more eigenvectors of the first channel.
  20. 20. The method of any one of claims 16 to 19, wherein the interfering channel information for the first sub-region comprises channel information for a plurality of interfering channels, the method further comprising: receiving indication information of one or more interference channels in the plurality of interference channels; the sending the channel characteristic information of the first sub-region includes: and transmitting channel characteristic information of the one or more interference channels.

Description

Communication method and communication device Technical Field The present application relates to the field of wireless communications, and in particular, to a communication method and a communication device. Background The channel map may be used to store a large amount of channel characteristic information that may be used to facilitate communications, high-precision positioning, etc. For example, to solve the problem of limited pilot measurement resources of a wireless communication system, a candidate beam set of a specific position can be provided through a channel map, so as to reduce the overhead of beam scanning in actual communication, or a priori information of a channel of the specific position can be provided through the channel map, and the priori information is utilized to assist in reducing pilot overhead, and the like. But how to obtain channel characteristic information that can accurately reflect the current communication environment of the communication device from a large amount of channel characteristic information is an unsolved problem. Disclosure of Invention The application provides a communication method and a communication device, which are used for acquiring channel characteristic information which can accurately reflect the current communication environment of communication equipment from a channel map, so as to better assist communication, high-precision positioning and the like. In a first aspect, a communication method is provided, where the method may be applied to a terminal device, and may be performed by the terminal device, or may also be performed by a component configured in the terminal device (such as a modem (modem) chip, a baseband (baseband) chip, or a system on chip (SoC) or a system in a package (SYSTEMIN PACKAGE, SIP) chip including a modem core, etc.), or may also be implemented by a logic module or software capable of implementing part or all of the functions of the terminal device, and the application is not limited to this. Alternatively, the method may be performed by the first communication device, and the first communication device may be a terminal device, a component (such as a modem chip, or an SoC or SIP chip including a modem core) configured in the terminal device, a logic module or software capable of implementing part or all of the functions of the terminal device, or the like, which is not limited to this aspect of the present application. For convenience of explanation, the method of the first aspect will be described below by taking a terminal device as an example. The method comprises the steps of obtaining channel information of a first channel, wherein the first channel is an interference channel, obtaining channel characteristic information of a first subarea based on the correlation degree of the channel information of the first channel and the interference channel information of the first subarea, wherein the first subarea is one or more of a plurality of subareas included in a serving cell of terminal equipment, and the interference channel information of the first subarea is reference interference channel information. The channel characteristic information is used to indicate a channel characteristic, and the channel characteristic may include, for example, but not limited to, one or more of a channel statistical covariance matrix, an angle spectrum, a delay spectrum, a path loss, a space-frequency basis, a space-domain basis, a frequency-domain basis, a time-domain (or Doppler) domain basis, a combination of two or more of the above-mentioned various bases, and the like. The channel information may be regarded as part of the channel characteristics or as information determined by part of the channel characteristics, such as a channel statistical covariance matrix, or as eigenvectors determined by a channel covariance matrix, such as basis vectors in a certain base, etc. Thus, in comparison, channel characteristic information may be used to indicate a richer, more complete channel characteristic. Based on the above technical scheme, the terminal device may acquire the channel characteristic information of the first sub-area according to the correlation degree between the channel information of the first channel and the interference channel information of the first sub-area. The interference channel information of the first sub-area is the reference interference channel information, and can be obtained according to priori information statistics, the channel information of the first channel can be estimated channel information, and the obtained channel characteristic information can accurately reflect the channel characteristics of the current communication environment, so that the method can be better used for auxiliary communication, such as more accurate channel estimation or channel measurement, thereby being beneficial to improving the frequency spectrum efficiency, or can be used for higher-precision positioning of terminal equipmen