US Patent No. 10,602,480

PAGING METHOD AND DEVICE


Patent No. 10,602,480
Issue Date March 24, 2020
Title Paging Method And Device
Inventorship Guorong Li, Shenzhen (CN)
Lili Zhang, Beijing (CN)
Aimin Justin Sang, San Diego, CA (US)
Assignee HUAWEI TECHNOLOGIES CO., LTD., Shenzhen (CN)

Claim of US Patent No. 10,602,480

1. A paging method, comprising:obtaining, by a first access network device, a first paging parameter group used for paging a terminal device, wherein the first paging parameter group comprises a terminal identifier (ID) that is calculated using an international mobile subscriber identity (IMSI) of the terminal device, wherein the IMSI uniquely identifies the terminal device, wherein the first paging parameter group further comprises at least one of a first paging ID or a dedicated discontinuous reception (DRX) cycle, wherein the first paging ID is assigned by a core network device to the terminal device based on the IMSI of the terminal device when the terminal device establishes a Radio Resource Control (RRC) connection, wherein the dedicated DRX cycle is determined by the terminal device, and wherein the first paging parameter group is obtained by either:
obtaining, by the first access network device in a first time period, the first paging parameter group used for paging the terminal device from the terminal device, wherein the first time period is a time period before the terminal device switches from a connected mode to a light connected mode, and wherein the first access network device is an access network device to which the terminal device is connected to when entering the light connected mode or an idle mode; or
obtaining, by the first access network device in a second time period, the first paging parameter group used for paging the terminal device from the core network device, wherein the terminal device is in the light connected mode or the idle mode in the second time period;
wherein the first paging parameter group is obtained by:
sending, by the first access network device, a paging parameter request message to the core network device in the second time period, wherein the paging parameter request message carries information used to identify the terminal device; and
receiving, by the first access network device, first S1 interface signaling from the core network device, wherein the first S1 interface signaling carries the first paging parameter group;
generating, by the first access network device, a paging message for the terminal device based on the first paging parameter group; and
sending, by the first access network device, the paging message to the terminal device.