Search

EP-4742805-A1 - INFORMATION SENDING METHOD AND APPARATUS, INFORMATION RECEIVING METHOD AND APPARATUS, AND DEVICE AND STORAGE MEDIUM

EP4742805A1EP 4742805 A1EP4742805 A1EP 4742805A1EP-4742805-A1

Abstract

The present application relates to the field of wireless communications. Disclosed are an information sending method and apparatus, an information receiving method and apparatus, and a device and a storage medium. The information sending method comprises: sending first information and/or second information in uplink transmission, wherein the first information is used for indicating interference to which a station is subjected, and the second information is used for instructing the station to adjust a working channel under an interference condition.

Inventors

  • LUO, Chaoming
  • LI, YAPU
  • GAO, NING
  • LU, Liuming

Assignees

  • GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP., LTD.

Dates

Publication Date
20260513
Application Date
20230928

Claims (20)

  1. A method for transmitting information, performed by a station, the method comprising: sending first information and/or second information in uplink transmission; wherein the first information is used to indicate interference to the station, and the second information is used to indicate an adjustment of an operating channel by the station in a case of interference.
  2. The method according to claim 1, wherein the first information comprises at least one of following information: an interference source; periodic interference or aperiodic interference; an expected duration of the interference; an expected start time of the interference; an expected end time of the interference; or an interfered subchannel.
  3. The method according to claim 2, wherein the interference source comprises at least one of following information: overlapping basic service set (OBSS) interference; intra-device interference; or interference of an unknown type.
  4. The method according to any one of claims 1 to 3, wherein the first information is carried in at least one of following information: a request-to-send (RTS) frame; a block acknowledgment (BA) frame; an acknowledgment (ACK) frame; A-Control of a data frame; A-Control of a management frame; an A-Control field of an additional quality of service null (QoS Null) frame; or an additional management frame.
  5. The method according to claim 4, wherein the first information is carried in: a Block Acknowledgment Control field of the BA frame; or control information of an A-Control field of the data frame or the management frame; or an Action field of the management frame.
  6. The method according to any one of claims 1 to 5, further comprising: adjusting to operate on an interference-free subchannel.
  7. The method according to claim 6, wherein adjusting to operate on the interference-free subchannel comprises at least one of: in a case where a secondary channel experiences interference and a primary channel is interference-free, reducing a channel bandwidth of the station to perform transmission and reception on the primary channel; in a case where a secondary channel experiences interference and at least two contiguous subchannels comprising a primary channel are interference-free, reducing a channel bandwidth of the station to perform transmission and reception on the at least two contiguous subchannels; in a case where at least one subchannel comprising a primary channel experiences interference and at least one secondary channel is interference-free, reducing a channel bandwidth of the station to perform transmission and reception on the interference-free secondary channel; in a case where a switching condition is met, switching to a target operating channel different from a current operating channel for transmission and reception; in a case where an interference type is intra-device interference, keeping an uplink channel bandwidth of the station unchanged, and reducing a downlink channel bandwidth of the station to perform reception on an interference-free subchannel; or in a case where an interference type is intra-device interference and a switching condition is met, keeping an uplink channel bandwidth of the station unchanged, and switching to a target operating channel different from a current downlink channel for reception.
  8. The method according to claim 7, wherein the switching condition comprises at least one of following conditions: at least one subchannel comprising a primary channel experiences interference; an interference-free subchannel is a non-contiguous subchannel; or an entire operating channel bandwidth of the current operating channel experiences interference.
  9. The method according to claim 1, wherein the second information comprises at least one of following information: reducing an operating bandwidth of the station; performing transmission and reception only on a primary channel, or performing reception only on a primary channel; performing transmission and reception only on at least one secondary channel, or performing reception only on at least one secondary channel; whether to switch the operating channel; a target operating channel after switching; a switching start time; a switching completion time; or a switching delay.
  10. The method according to claim 1, wherein the second information comprises at least one of following information: restoring or increasing an operating bandwidth of the station; restoring to an operating bandwidth before the interference; whether to switch the operating channel; a target operating channel after switching; a switching start time; a switching completion time; or a switching delay.
  11. The method according to claim 9 or 10, wherein in a case where the switching delay is not greater than a first duration, the second information does not need to indicate at least one of the switching delay, the switching completion time, or the switching start time; in a case where the switching delay is greater than the first duration, the second information carries at least one of the switching delay, the switching completion time, or the switching start time.
  12. The method according to claim 9 or 10, wherein the second information is carried in at least one of following frames: a request-to-send (RTS) frame; a block acknowledgment (BA) frame; an acknowledgment (ACK) frame; A-Control of a data frame; A-Control of a management frame; an A-Control field of an additional quality of service null (QoS Null) frame; or an additional management frame.
  13. The method according to claim 12, wherein the second information is carried in at least one of following frames: a Block Acknowledgment Control field of the BA frame; or control information of an A-Control field of the data frame or the management frame; or an Action field of the management frame.
  14. The method according to any one of claims 1 to 13, further comprising: receiving third information in downlink transmission, wherein the third information is used to indicate an adjustment of the operating channel of the station by an access point.
  15. The method according to claim 14, wherein the third information is at least one of following information: whether the station is required to switch the operating channel; indicating a target operating channel for the station to switch to; a switching start time; a switching completion time; or a switching delay.
  16. The method according to claim 14, wherein the third information is carried in at least one of following frames: a request-to-send (RTS) frame; a block acknowledgment (BA) frame; an acknowledgment (ACK) frame; A-Control of a data frame; A-Control of a management frame; an A-Control field of an additional quality of service null (QoS Null) frame; an additional management frame; multiuser request-to-send (MU-RTS); a basic trigger frame; or clear-to-send (CTS).
  17. The method according to claim 16, wherein a user information field of the MU-RTS comprises at least one of: an Associated Identifier field, used to indicate the station; a Switching field, used to indicate whether the station indicated by the Associated Identifier field adjusts the operating channel; or a Sart-of-Switching Time field, used to indicate a time at which the station indicated by the Associated Identifier field starts to adjust the operating channel.
  18. The method according to claim 16, wherein a user information list of the RTS comprises a User Information field and a User Information Extension field that appear in pairs; wherein the User Information field is used to indicate the station and allocate a resource unit to the station; and the User Information Extension field comprises a Switching field and/or a Start-of-Switching field; wherein the Switching field is used to indicate whether the station adjusts the operating channel, wherein in a case where the station adjusts the operating channel, a target operating channel is a subchannel on which a resource unit allocated to the station is located; a Start-of-Switching Time field is used to indicate a time at which the station starts to adjust the operating channel.
  19. The method according to any one of claims 6 to 18, further comprising: adjusting, in a case where the interference ends, the operating channel to a state at start of a first transmission opportunity; or adjusting, in a case where a first transmission opportunity ends, the operating channel to a state at start of the first transmission opportunity, wherein the first transmission opportunity is a transmission opportunity used by the station.
  20. The method according to any one of claims 1 to 19, wherein a holder of a first transmission opportunity used by the station is an access point.

Description

TECHNICAL FIELD The present disclosure relates to the field of wireless communications, and in particular, relates to a method and apparatus for transmitting information, a method and apparatus for receiving information, a device, and a storage medium. RELATED ART In a wireless local area network (WLAN), a basic service set (BSS) structure is adopted. A basic BSS uses an access point (AP) to provide a network access service for a station (STA). In a dense WLAN deployment scenario, overlapping coverage areas of a plurality of APs significantly increase, and a plurality of BSSs become overlapping basic service sets (OBSSs) of each other. STAs in the overlapping coverage area can receive signals from a plurality of APs, leading to mutual interference. SUMMARY Embodiments of the present disclosure provide a method and apparatus for transmitting information, a method and apparatus for receiving information, a device, and a storage medium, so as to provide solutions applicable to scenarios involving inconsistent overlapping basic service set (OBSS) interference or non-OBSS interference. The technical solutions are as follows. According to an aspect of the present disclosure, a method for transmitting information is provided. The method is performed by a station. The method includes: sending first information and/or second information of the station in uplink transmission; wherein the first information is used to indicate interference to the station, and the second information is used to indicate an adjustment of an operating channel by the station in the case of interference. According to an aspect of the present disclosure, a method for receiving information is provided. The method is performed by an access point. The method includes: receiving first information and/or second information of a station in uplink transmission, wherein the first information is used to indicate interference to the station, and the second information is used to indicate an adjustment of an operating channel by the station in the case of interference. According to an aspect of the present disclosure, an apparatus for transmitting information is provided. The apparatus includes: a sending module, configured to send first information and/or second information of a station in uplink transmission, wherein the first information is used to indicate interference to the station, and the second information is used to indicate an adjustment of an operating channel by the station in the case of interference. According to an aspect of the present disclosure, an apparatus for receiving information is provided. The apparatus includes: a receiving module, configured to receive first information and/or second information of a station in uplink transmission, wherein the first information is used to indicate interference to the station, and the second information is used to indicate an adjustment of an operating channel by the station in the case of interference. According to an aspect of the present disclosure, a station is provided. The station includes: a processor; a transceiver, connected to the processor; and a memory, configured to store an instruction executable by the processor. The processor, when loading and executing the instruction, is caused to perform the method for transmitting information as described above. According to an aspect of the present disclosure, an access point is provided. The access point includes: a processor; a transceiver, connected to the processor; and a memory, configured to store an instruction executable by the processor. The processor, when loading and executing the instruction, is caused to perform the method for receiving information as described above. According to an aspect of the present disclosure, a computer-readable storage medium is provided. The computer-readable storage medium stores an executable instruction. The executable instruction, when loaded and executed by a processor, cause the processor to perform the method for transmitting information, and/or the method for receiving information as described above. According to an aspect of the present disclosure, a computer program product is provided. The computer program product includes a computer instruction stored in a computer-readable storage medium. The computer instruction, when read by a processor of a computer device from the computer-readable storage medium and executed by the processor, cause the computer device to perform the method for transmitting information, and/or the method for receiving information as described above. According to an aspect of the present disclosure, a chip including a programmable logic circuit and/or a program instruction is provided. The chip, when running the programmable logic circuit and/or the program instruction, is caused to perform the method for transmitting information, and/or the method for receiving information as described above. According to an aspect of the present disclosure, a computer program is pro