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CN-122002437-A - PVB information synchronization method, device, equipment and system

CN122002437ACN 122002437 ACN122002437 ACN 122002437ACN-122002437-A

Abstract

The application provides a PVB information synchronization method, device, equipment and system, and belongs to the technical field of communication. The method is applied to a communication system, the communication system comprises a first access point and other access points, the first access point is identical to the BSSID of the other access points, the first access point is connected with the other access points, PVB information of a real associated site is obtained from the other access points, and the PVB information is summarized by the first access point and then is issued to all the access points. In this way, PVB information of all access points is synchronized, so that the possibility of station dormancy confusion is reduced, and stations are enabled to roam without sense when roaming due to the fact that the access points can acquire PVB information of all stations.

Inventors

  • Chen Yunman
  • SUN YANBIN
  • NIE HAI

Assignees

  • 华为技术有限公司

Dates

Publication Date
20260508
Application Date
20241104

Claims (20)

  1. 1. A method for synchronizing PVB information of a local virtual bitmap, which is applied to a first access point in a communication system, wherein a basic service set identifier BSSID of the access point in the communication system is the same, and the first access point is connected with other access points in the communication system, the method comprises: PVB information of the true associated site sent by the other access points is received; and sending PVB summarized information to the other access points, wherein the PVB summarized information is obtained by summarizing PVB information of the access points in the communication system.
  2. 2. The method of claim 1, wherein the receiving PVB information for the true association site transmitted by the other access point comprises: The PVB information of the real associated site, which is periodically sent by the other access points, is received; and/or the number of the groups of groups, And receiving PVB information sent by the other access points after the PVB information of the real associated site is changed.
  3. 3. The method according to claim 1 or 2, wherein said receiving PVB information of a truly associated site sent by said other access point comprises: The PVB information of the real associated site, which is sent by the other access points after the first beacon frame is broadcast, is received; The sending time of the PVB summarized information is earlier than the time of broadcasting a second beacon frame by other access points, the second beacon frame is the first beacon frame broadcasted after the first beacon frame is broadcasted by other access points, and the second beacon frame comprises the PVB summarized information.
  4. 4. The method of any of claims 1 to 3, wherein the PVB information comprises PVB values of the real associated site, or The PVB information comprises a first identifier and a second identifier of the real associated site, wherein the first identifier indicates whether the real associated site is in a dormant state or not, and the second identifier indicates whether the real associated site has data reception or not.
  5. 5. The method of claim 4, further comprising, prior to transmitting PVB summary information to the other access points: And for each access point in the communication system, determining PVB values of the real associated stations on the access points based on the first identification and the second identification of the real associated stations on the access points, wherein the PVB summary information comprises PVB values of the real associated stations on all the access points.
  6. 6. The method of any of claims 1 to 5, wherein the PVB information further comprises an identification of an access point interface associated with the true association site; the sending PVB summarized information to the other access points comprises the following steps: And sending PVB summarized information and the identification of the access point interface to the other access points.
  7. 7. The method according to any one of claims 1 to 6, wherein said receiving PVB information of a truly associated station transmitted by said other access point comprises: And receiving synchronous report messages sent by the other access points, wherein the synchronous report messages comprise the PVB information.
  8. 8. The method of any one of claims 1 to 7, wherein the sending PVB summary information to the other access points comprises: and sending networking synchronization messages to the other access points, wherein the networking synchronization messages comprise the PVB summarized information.
  9. 9. The method of claim 8, wherein the networking synchronization message further comprises a beacon frame transmission indication identifier.
  10. 10. The method of any one of claims 1 to 9, wherein the first access point is a master FTTR device in a fiber-to-room FTTR system and the other access points are slave FTTR devices in the FTTR system.
  11. 11. A method for synchronizing locally virtual bitmap PVB information, which is applied to a second access point in a communication system, wherein a basic service set identifier BSSID of the access point in the communication system is the same, and a first access point in the communication system is connected with other access points, and the other access points include the second access point, the method includes: Sending PVB information of a true associated site to the first access point; Receiving PVB summarized information sent by the first access point, wherein the PVB summarized information is obtained by summarizing PVB information of the access point in the communication system; And broadcasting a beacon frame, wherein the beacon frame comprises the PVB summarized information.
  12. 12. The method of claim 11, wherein the sending PVB information for the true association station to the first access point comprises: periodically sending PVB information of the truly associated station to the first access point, and/or, And when the PVB information of the real associated site changes, sending the PVB information of the real associated site to the first access point.
  13. 13. The method of claim 11 or 12, further comprising, prior to sending PVB information for the truly associated station to the first access point: Broadcasting a first beacon frame; The broadcast beacon frame includes: And broadcasting a second beacon frame, wherein the second beacon frame comprises the PVB summarized information, and the second beacon frame is a first beacon frame broadcasted after the first beacon frame is broadcasted by the second access point.
  14. 14. The method of any one of claims 11 to 13, wherein the PVB information comprises a PVB value of the true association site, or The PVB information comprises a first identifier and a second identifier of the real associated site, wherein the first identifier indicates whether the real associated site is in a dormant state or not, and the second identifier indicates whether the real associated site has data reception or not.
  15. 15. The method of any of claims 11 to 14, wherein the PVB information further comprises an identification of an access point interface associated with the true association site; The receiving PVB summarized information sent by the first access point comprises the following steps: receiving PVB summary information sent by the first access point and an identifier of the access point interface; the broadcasting of the PVB summary information includes: and broadcasting the PVB summarized information at the access point interface indicated by the identification of the access point interface.
  16. 16. The method of any of claims 11 to 15, wherein the sending PVB information of a truly associated station to the first access point comprises: and sending a synchronous report message to the first access point, wherein the synchronous report message comprises the PVB information.
  17. 17. The method of any of claims 11 to 16, wherein the receiving PVB summary information sent by the first access point comprises: And receiving a networking synchronization message sent by the first access point, wherein the networking synchronization message comprises the PVB summarized information.
  18. 18. The method of claim 17, wherein the networking synchronization message further comprises a beacon frame transmission indication identifier.
  19. 19. The method of any one of claims 11 to 18, wherein the first access point is a master FTTR device in a fiber-to-room FTTR system and the other access points are slave FTTR devices in the FTTR system.
  20. 20. A device for synchronizing PVB information of a local virtual bitmap, which is applied to a first access point in a communication system, wherein a basic service set identifier BSSID of the access point in the communication system is the same, and the first access point is connected with other access points in the communication system, the device comprises: The interaction module is used for receiving PVB information of the real associated site sent by the other access points; and sending PVB summarized information to the other access points, wherein the PVB summarized information is obtained by summarizing PVB information of the access points in the communication system.

Description

PVB information synchronization method, device, equipment and system Technical Field The present application relates to the field of optical communications technologies, and in particular, to a method, an apparatus, a device, and a system for PVB information synchronization. Background Wireless local area networks (wireless local area network, WLAN) are becoming more and more popular, in which the WLAN includes Stations (STAs) and Access Points (APs), and in order to reduce power consumption of the stations, the APs periodically broadcast Beacon (Beacon) frames, where the Beacon frames include a local virtual bitmap (partial virtual bitmap, PVB) information field, where the PVB information field is used to indicate whether the stations have own downlink data. The station only needs to wake up periodically at the Beacon frame time point, receives the Beacon frame, judges whether downlink data exist, enters a working state if the downlink data exist, and continues to sleep if the downlink data exist. Along with the more and more complex networking of the WLAN, a plurality of access points can all send Beacon frames, and a station can receive Beacon frames sent by other access points, so that the station receives PVB information sent by different access points, and the PVB information can cause the station to generate dormancy confusion, and then miss downlink data. Disclosure of Invention The application provides a PVB information synchronization method, device, equipment and system, which can synchronize PVB information in WLAN, so that the possibility of sleep confusion is reduced. The technical scheme adopted is as follows: in a first aspect, the application provides a method for synchronizing PVB information, which is applied to a first access point in a communication system, wherein basic service set identifiers (basic SERVICE SET IDENTIFIER, BSSIDs) of the access points in the communication system are the same, the first access point is connected with other access points in the communication system, the method comprises the steps of receiving PVB information of a real associated station sent by the other access points, and sending PVB summary information to the other access points, wherein the PVB summary information is obtained by summarizing PVB information of the access points in the communication system. In the scheme shown in the application, the communication system comprises a first access point and other access points, the first access point is the same as the BSSID of the other access points, the first access point is connected with the other access points, PVB information of a real associated site is reported to the first access point by the other access points, and the PVB information is summarized by the first access point and then is issued to all the access points. In this way, PVB information of all access points is synchronized, so that the possibility of station dormancy confusion is reduced, and stations are enabled to roam without sense when roaming due to the fact that the access points can acquire PVB information of all stations. When PVB information is summarized, PVB information of the first access point also participates in the summary. Wherein the communication system is FTTR system or FTTR network. In an optional manner, the first access point receives PVB information of the real association site periodically sent by the other access points, so that the first access point can acquire PVB information at fixed time, and/or the first access point receives PVB information sent by the other access points after PVB information of the real association site changes. In this way, the first access point can timely acquire the PVB information which changes and synchronize the PVB information to all access points in the WLAN, so that the station can timely acquire the PVB value of the station, and corresponding operation is executed. In an alternative manner, the other access point sends PVB information of the real association station after broadcasting the first Beacon frame, and the time when the first access point issues PVB information is earlier than the time when the other access point broadcasts a second Beacon frame, where the second Beacon frame is the first Beacon frame broadcasted after the other access point broadcasts the first Beacon frame, and the second Beacon frame includes the PVB summary information. Therefore, the Beacon frame broadcasted by the second access point can include the latest PVB summary information, so that the station can acquire PVB information of the station in time. In one alternative, there are a number of ways in which the PVB value of a truly associated site can be indicated, two possible ways in which the PVB information includes the PVB value of the truly associated site such that the first access point can directly obtain the PVB value of the site, or the PVB information includes a first identification of the truly associated site and a second ide