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1. (WO2015113409) METHOD, APPARATUS AND SYSTEM FOR STATE SUBSCRIPTION

Pub. No.:    WO/2015/113409    International Application No.:    PCT/CN2014/088957
Publication Date: Fri Aug 07 01:59:59 CEST 2015 International Filing Date: Tue Oct 21 01:59:59 CEST 2014
IPC: H04L 12/58
Applicants: HUAWEI TECHNOLOGIES CO., LTD.
华为技术有限公司
Inventors: CHEN, Fei
陈飞
Title: METHOD, APPARATUS AND SYSTEM FOR STATE SUBSCRIPTION
Abstract:
A method, apparatus and system for state subscription relate to the field of communications, can reduce the number of subscriptions and the number of state notifications generated inside the system during state subscriptions and also reduce the pressure on the system resulting from the fact that state subscriptions are concurrently initiated by a large number of terminals. The method comprises: a first presence server receiving state information published by a first terminal belonging to the first presence server; the first presence server broadcasting the state information published by the first terminal to other presence servers including a second presence server, so that the second presence server, when subscribing, on a second terminal belong to the second presence server, for state information corresponding to the first terminal, notifies the second terminal of the state information corresponding to the first terminal, the state information corresponding to the first terminal comprising the state information published by the first terminal.