CN-122002439-A - Roaming method and device

Abstract

A roaming method and device relates to the technical field of communication and is used for providing a processing flow of a master-slave optical network unit. The method comprises the steps that a main optical network unit (MFU) sends a roaming pretreatment message to a target SFU, wherein the roaming pretreatment message is used for indicating the target SFU to start roaming preparation for the station, and the MFU receives a roaming pretreatment feedback message from the target SFU, and the roaming pretreatment feedback message is used for indicating whether the roaming preparation for the station is successful or not.

Inventors

• YE ZHICHENG
• Chen Yunman
• SUN YANBIN

Assignees

• 华为技术有限公司

Dates

Publication Date

20260508

Application Date

20250218

Priority Date

20241104

Claims (20)

1. 1. A roaming method, comprising: the method comprises the steps that a main optical network unit (MFU) sends a roaming pretreatment message to a target SFU, wherein the roaming pretreatment message is used for indicating the target SFU to start roaming preparation for a station; The MFU receives a roaming pre-process feedback message from the target SFU indicating whether roaming preparation for the station was successful.
2. 2. The method of claim 1, wherein the roaming pre-process message is carried in a Wi-Fi management control interface message.
3. 3. The method of claim 1 or 2, wherein the roaming pre-process message includes an identification of the station.
4. 4. A method according to any of claims 1-3, wherein the roaming pre-treatment message comprises an aggregation parameter for the target SFU to establish an aggregation with the station.
5. 5. A method according to any of claims 1-3, wherein the roaming pre-processing message comprises an aggregation parameter for the target SFU to establish an aggregation with the station and an association parameter for the target SFU to establish an association with the station.
6. 6. The method of claim 5, wherein the association parameters include association request frames for the station and/or keys negotiated by the station with a source SFU for communication.
7. 7. The method according to any of claims 4-6, wherein the aggregation parameters comprise the size of an aggregation window and/or an aggregation policy.
8. 8. The method of any of claims 1-7, wherein the roaming pre-process feedback message indicates that the target SFU successfully completed roaming preparation for the station.
9. 9. The method of any of claims 1-7, wherein the roaming pre-process feedback message indicates that the target SFU failed roaming preparation for the station; The method further comprises the steps of: the MFU clears roaming related information for the station.
10. 10. The method of any of claims 1-7, wherein the roaming pre-process feedback message indicates that the target SFU failed roaming preparation for the station; The method further comprises the steps of: The MFU sends a roaming exception handling message to the target SFU, the roaming exception handling message indicating to clear roaming related information for the station.
11. 11. The method of claim 10, further comprising the MFU receiving the roaming exception handling complete message from the target SFU.
12. 12. The method of claim 10, wherein the method further comprises: And the MFU sends the roaming exception handling message to a source SFU, wherein the source SFU is the SFU which is accessed by the station currently.
13. 13. The method of claim 12, wherein the method further comprises: the MFU receives a roaming exception handling complete message from the source SFU.
14. 14. A roaming method, comprising: The target sub-optical network unit SFU receives a roaming pretreatment message from the main optical network unit MFU, wherein the roaming pretreatment message is used for indicating the target SFU to start roaming preparation for the station; The target SFU sends a roaming pre-process feedback message to the MFU indicating whether roaming preparation for the station was successful.
15. 15. The method of claim 14, wherein the roaming pre-process message is carried in a Wi-Fi management control interface message.
16. 16. The method of claim 14 or 15, wherein the roaming pre-process message includes an identification of the station.
17. 17. The method of any of claims 14-16, wherein the roaming pre-process message includes an aggregation parameter for the target SFU to establish an aggregation with the station.
18. 18. The method of any of claims 14-16, wherein the roaming pre-processing message comprises an aggregation parameter for the target SFU to establish an aggregation with the station and an association parameter for the target SFU to establish an association with the station.
19. 19. The method of claim 18, wherein the association parameters include association request frames for the station and/or keys negotiated by the station with a source SFU for communication.
20. 20. The method according to any of claims 17-19, wherein the aggregation parameters comprise an aggregation window size and/or an aggregation policy.

Description

Roaming method and device Related cross-reference The present application claims priority of the chinese patent application entitled "a roaming method and apparatus" filed on 4 th 11 th 2024, application number 202411569983.0, and priority of some other part of the chinese patent application entitled "a roaming method and apparatus" filed on 9 th 2025, application number 202510040490.6, and application number 202411569983.0, which are incorporated herein by reference. Technical Field The present application relates to the field of communications technologies, and in particular, to a roaming method and apparatus. Background When the channel quality between the terminal and the currently associated access point becomes poor in the process of moving in FTTR networking, the terminal needs to roam to an access point with better channel quality so as to ensure the continuity of the service. The process flow between the master and slave optical network units in FTTR networking has not been discussed. Disclosure of Invention The embodiment of the application provides a roaming method and a roaming device, which are used for providing a processing flow of a master optical network unit and a slave optical network unit. In a first aspect, an embodiment of the present application provides a roaming method, including: The method comprises the steps that a main optical network unit (MFU) obtains roaming decision information of the SFU in a network; the MFU determines a target SFU for the station according to the roaming decision information; The MFU sends a roaming start indication message to the target SFU, the roaming start indication message being for indicating to initiate a roaming process for the station. In one possible implementation scenario, the source access point may be an MFU. In another possible implementation scenario, the source access point may be a source SFU. In one possible design, the roaming start indication message is carried in a Wi-Fi management control interface message. In one possible design, the initiating the roaming process includes initiating a roaming handoff state machine. In one possible design, the roaming start indication message includes an identification of the station. In one possible design, the method further comprises: The MFU receives a roaming start confirm message from a target SFU indicating that the target SFU successfully completed a roaming start for the station. In one possible design, the method further comprises: the MFU receives a roaming start failure message from the target SFU, wherein the roaming start failure message indicates that the target SFU fails to start roaming for the station; the MFU clears roaming related information for the station. In one possible design, the method further comprises: the MFU sends a roaming start indication message to a source SFU, the roaming start indication message being for indicating to initiate a roaming process for the station. In one possible design, the method further comprises: The MFU receives a roaming start confirm message from a source SFU indicating that the source SFU successfully completed a roaming start for the station. In one possible design, the method further comprises: the MFU receives a roaming start failure message from a source SFU, wherein the roaming start failure message indicates that the source SFU fails to start roaming for the station; the MFU clears roaming related information for the station. In one possible design, the method further comprises: The MFU sends roaming exception handling messages to the source SFU and the target SFU, the roaming exception handling messages being used to indicate clearing of roaming related information for the station. In one possible design, the method further comprises: The MFU receives a roaming exception handling complete message from the source SFU and/or, The MFU receives the roaming exception handling complete message from the target SFU. In one possible design, the roaming decision information includes one or more of signal strength, load information, or channel condition information with the station. In a second aspect, an embodiment of the present application provides a roaming method, including: The method comprises the steps that a sub-optical network unit SFU receives a roaming start indication message from a main optical network unit MFU, wherein the roaming start indication message is used for indicating to start roaming processing for a station; the SFU initiates a roaming process for the station. In one possible design, the roaming start indication message is carried in a Wi-Fi management control interface message. In one possible design, the initiating the roaming process includes initiating a roaming handoff state machine. In one possible design, the roaming start indication message includes an identification of the station. In one possible design, the method further comprises: The SFU sends the roaming start confirmation message to the MFU, wherein