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CN-122002223-A - Communication method and device

CN122002223ACN 122002223 ACN122002223 ACN 122002223ACN-122002223-A

Abstract

A communication method and device can avoid abnormal behavior of a trigger station, ensure service transmission and improve communication performance. In this method, in the case where the multicast/broadcast data received by each SFU is not from the MFU, the SFU forwards only the multicast/broadcast data to the MFU. The MFU acquires multicast/broadcast data to be transmitted, transmits the same scheduling information to each SFU to schedule transmission of the multicast/broadcast data, and the plurality of SFUs may transmit the multicast/broadcast data according to the scheduling of the MFU. In addition, the MFU may also transmit multicast/broadcast data in a configuration indicated by the scheduling information. That is, the MFU may uniformly schedule the plurality of SFUs to transmit the multicast/broadcast data, so as to ensure that each SFU and the MFU transmit the multicast/broadcast data with the same configuration, for example, may transmit the same content, align the transmission time, use the same parameters, etc., so that the station receives the superposition of the signals transmitted by each SFU and the MFU, and ensure that the signal strength will not jump, thereby avoiding triggering abnormal behavior.

Inventors

  • CHEN ZHAO
  • SI XIAOSHU
  • Chen Yunman

Assignees

  • 华为技术有限公司

Dates

Publication Date
20260508
Application Date
20241104

Claims (19)

  1. 1. A method of communication, characterized by an application Yu Ziguang network unit SFU, the method comprising: Receiving first multicast/broadcast data from a main optical network unit MFU; receiving scheduling information from the MFU, the scheduling information for scheduling the first multicast/broadcast data; And sending second multicast/broadcast data according to the scheduling information, wherein the second multicast/broadcast data is part or all of the first multicast/broadcast data.
  2. 2. The method of claim 1, wherein the scheduling information indicates at least one of a transmission time, a transmission data length, a Virtual Access Point (VAP) identity, a transmission power, a transmission bandwidth, a Modulation and Coding Scheme (MCS), or a transmission protocol type.
  3. 3. The method of claim 2, wherein the transmission time indicates a transmission time of the second multicast/broadcast data; The transmission data length indicates the length of the second multicast/broadcast data, or The VAP identity is the identity of the VAP used to transmit the second multicast/broadcast data, or The transmission power indicating a transmission power of the second multicast/broadcast data, or The transmission bandwidth indicating a transmission bandwidth of the second multicast/broadcast data, or The MCS indicating the MCS of the second multicast/broadcast data, or The transport protocol type indicates a type of protocol employed when transmitting the second multicast/broadcast data.
  4. 4. The method according to claim 1 or 2, characterized in that the scheduling information is carried in a wireless local area network management and control interface WMCI message.
  5. 5. The method according to any one of claims 1-4, further comprising: Receiving third multicast/broadcast data from a first device, the first device being a device other than an MFU; and transmitting the third multicast/broadcast data to the MFU, the first multicast/broadcast data including the third multicast/broadcast data.
  6. 6. The method of any of claims 1-5, wherein the scheduling information indicates a first transmission time and a second transmission time, the first transmission time being earlier than the second transmission time; Transmitting second multicast/broadcast data according to the scheduling information, including: Transmitting the second multicast/broadcast data at a first power at a third transmission time, the third transmission time being a time after the first transmission time is delayed by a predetermined length of time, and And transmitting the second multicast/broadcast data according to a second power at the second transmission time, wherein the first power is the power of the second power after the second power is reduced by a preset power value.
  7. 7. The method of claim 6, wherein the preset duration is 20 microseconds and/or the preset power value is 6dB.
  8. 8. A communication method applied to a primary optical network unit MFU, the method comprising: transmitting first multicast/broadcast data to at least one sub-optical network unit SFU; transmitting scheduling information to the at least one SFU, the scheduling information being used to schedule the first multicast/broadcast data; and sending second multicast/broadcast data according to the scheduling information, wherein the second multicast/broadcast data is part or all of the multicast/broadcast data.
  9. 9. The method of claim 8, wherein the scheduling information indicates at least one of a transmission time, a transmission data length, a Virtual Access Point (VAP) identification, a transmission power, a transmission bandwidth, a Modulation and Coding Scheme (MCS), or a transmission protocol type.
  10. 10. The method of claim 9, wherein the transmission time indicates a transmission time of the second multicast/broadcast data; The transmission data length indicates the length of the second multicast/broadcast data, or The VAP identity is the identity of the VAP used to transmit the second multicast/broadcast data, or The transmission power indicating a transmission power of the second multicast/broadcast data, or The transmission bandwidth indicating a transmission bandwidth of the second multicast/broadcast data, or The MCS indicating the MCS of the second multicast/broadcast data, or The transport protocol type indicates a type of protocol employed when transmitting the second multicast/broadcast data.
  11. 11. The method according to any of claims 8-10, wherein the scheduling information is carried in a wireless local area network management and control interface WMCI message.
  12. 12. The method according to any one of claims 8-11, further comprising obtaining multicast/broadcast data, wherein the first multicast/broadcast data is some or all of the multicast/broadcast data.
  13. 13. The method of claim 12, wherein the acquiring multicast/broadcast data comprises receiving third multicast/broadcast data from the first SFU, the multicast/broadcast data comprising the third multicast/broadcast data.
  14. 14. The method according to claim 12 or 13, wherein the acquiring multicast/broadcast data comprises: fourth multicast/broadcast data is received from the optical line terminal OLT, the multicast/broadcast data comprising the fourth multicast/broadcast data.
  15. 15. The method according to any of claims 8-14, wherein the scheduling information indicates a first transmission time and a second transmission time, the first transmission time being earlier than the second transmission time; Transmitting second multicast/broadcast data according to the scheduling information, including: transmitting the second multicast/broadcast data at a third power at the first transmission time; and transmitting the second multicast/broadcast data according to fourth power at fourth transmission time, wherein the fourth transmission time is the time after the second transmission time is delayed by a preset time length, and the fourth power is the power of the third power after the preset power value is reduced.
  16. 16. The method of claim 15, wherein the preset duration is 20 microseconds and/or the preset power value is 6dB.
  17. 17. A communication device comprising a processor for executing a computer program or instructions to cause the communication device to perform the method according to any of claims 1-7 or to cause the communication device to perform the method according to any of claims 8-16.
  18. 18. A computer readable storage medium storing computer instructions or a program which, when run on a computer, cause the method of any one of claims 1-7 to be performed or cause the method of any one of claims 8-16 to be performed.
  19. 19. A computer program product comprising computer instructions which, when run on a computer, cause the method of any one of claims 1 to 7 to be performed or cause the method of any one of claims 8 to 16 to be performed.

Description

Communication method and device Technical Field The embodiment of the application relates to the field of communication, in particular to a communication method and device. Background Under the fiber-to-room (fiber to the room, FTTR) networking architecture, some manufacturers have introduced networking schemes with Basic Service Set Identification (BSSID) in order to achieve seamless roaming. In the same BSSID networking scheme, the main optical network unit (master fiber unit, MFU) and all sub optical network units (SFUs) use the same BSSID and operate on the same channel. Based on this networking scheme, when a service Access Point (AP) signal is not good, a Station (STA) can be switched to an AP with a better signal without sense. However, in the networking manner, the station may receive downlink multicast/broadcast data from different APs, which may cause signal strength jump at the station side, trigger interruption to perform abnormal behaviors such as channel detection or autonomous roaming, and affect service transmission. Disclosure of Invention The application provides a communication method and a communication device, which can avoid abnormal behavior of a triggering station and can not influence service transmission of the station. In a first aspect, a communication method is provided, which may be performed by an SFU, or a component of the SFU, such as a processor, a chip, or a system-on-chip of the SFU, or a logic module or software capable of implementing all or part of the SFU functions. The method comprises the steps of receiving first multicast/broadcast data from a main optical network unit (MFU), receiving scheduling information from the MFU, wherein the scheduling information is used for scheduling the first multicast/broadcast data, and sending second multicast/broadcast data according to the scheduling information, and the second multicast/broadcast data is part or all of the first multicast/broadcast data. Based on the scheme, the MFU can uniformly schedule the SFU to send the multicast/broadcast data, so that the SFU and the MFU are guaranteed to send the multicast/broadcast data by adopting the same configuration, the stations can receive the superposition of signals sent by the SFU and the MFU, the stations can normally analyze the data, the received signals cannot jump in strength, the abnormal behaviors of the stations are prevented from being triggered, the service transmission is guaranteed, and the communication performance is improved. In one possible design, the transmission time, the transmission data length, the virtual access point VAP identification, the transmission power, the transmission bandwidth, the modulation coding scheme MCS, or the transmission protocol type. Based on the possible design, the MFU can schedule the SFU and the MFU to align the transmission time, transmit the same multicast/broadcast data and adopt the same transmission parameters, so that the stations are guaranteed to receive the superposition of signals transmitted by the SFU and the MFU, the stations can normally analyze the data, the received signals cannot jump in strength, the abnormal behaviors of the stations are further avoided, the service transmission is guaranteed, and the communication performance is improved. In one possible design, the transmission time indicates a transmission time of the second multicast/broadcast data, the transmission data length indicates a length of the second multicast/broadcast data, or the VAP is identified as an identification of the VAP used to transmit the second multicast/broadcast data, or the transmission power indicates a transmission power of the second multicast/broadcast data, or the transmission bandwidth indicates a transmission bandwidth of the second multicast/broadcast data, or the MCS indicates an MCS of the second multicast/broadcast data, or the transmission protocol type indicates a type of protocol employed when transmitting the second multicast/broadcast data. In one possible design, the scheduling information is carried in a wireless local area network management and control interface WMCI message. In one possible design, the method further includes receiving third multicast/broadcast data from a first device, the first device being a device other than the MFU, and transmitting the third multicast/broadcast data to the MFU, the first multicast/broadcast data including the third multicast/broadcast data. Based on the possible design, the SFU can transmit the multicast/broadcast data to the MFU instead of the WLAN port immediately after receiving the multicast/broadcast data from the MFU, so that the MFU can uniformly schedule the transmission of the multicast/broadcast data, thereby avoiding the jump of the signal intensity of the data received by the station, further avoiding the abnormal behavior of the triggering station, ensuring the service transmission and improving the communication performance. In one possible design, the sc