Patent ID: 11917718
Assignee: HUAWEI TECHNOLOGIES CO., LTD.
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC H

Claim 10:
11. A local area network (LAN) communication management apparatus comprising:
a memory configured to store program instructions; and
a processor coupled to the memory, wherein the program instructions cause the processor to be configured to:
obtain registration area information of a terminal, a LAN identifier (ID) of the terminal, and service area information corresponding to the LAN ID, wherein the registration area information indicates a registration area in which the terminal can establish a connection to a network, wherein the service area information indicates a service area providing a LAN service for a group member in a LAN group identified by the LAN ID, and wherein obtaining the registration area, the LAN ID, and the service area information comprises either:
receiving, from a unified data management network element, a first subscription data update notification comprising the LAN ID and a second ID of the terminal; obtaining, based on the second ID, the registration area information; sending, to a LAN service management function network element, a first request message carrying the LAN ID, wherein the first request message requests to obtain the service area information; and receiving, from the LAN service management function network element, a first response message carrying the service area information;
receiving, from the terminal, a first registration request message carrying the second ID of the terminal; sending, to the unified data management network element, a first subscription data request message carrying the second ID; receiving, from the unified data management network element, a first subscription data response message carrying the LAN ID; generating the registration area information; sending, to the LAN service management function network element, a second request message carrying the LAN ID, wherein the second request message requests to obtain the service area information; and receiving, from the LAN service management function network element, a second response message carrying the service area information;
receiving, from the unified data management network element, a second subscription data update notification comprising the LAN ID, the service area information, and the second ID of the terminal; obtaining, based on the second ID, the registration area information; and obtaining, from the second subscription data update notification, the LAN ID and the service area information; or
receiving, from the terminal, a second registration request message carrying the second ID of the terminal; sending, to the unified data management network element, a second subscription data request message carrying the second ID; receiving, from the unified data management network element, a second subscription data response message carrying the LAN ID and the service area information; generating the registration area information; and obtaining, from the second subscription data response message, the LAN ID and the service area information;

determine, based on the registration area information and the service area information, an intersection area of the registration area and the service area as LAN communication area information of the terminal; and
send, to the terminal, LAN information of the terminal,
wherein the LAN information comprises the LAN ID and the LAN communication area information.