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1. (WO2017035708) DATA TRANSMISSION METHOD AND DEVICE, BASE STATION, AND USER EQUIPMENT

Pub. No.:    WO/2017/035708    International Application No.:    PCT/CN2015/088439
Publication Date: Fri Mar 10 00:59:59 CET 2017 International Filing Date: Sat Aug 29 01:59:59 CEST 2015
IPC: H04W 72/04
Applicants: HUAWEI TECHNOLOGIES CO., LTD.
华为技术有限公司
Inventors: ZENG, Qinghai
曾清海
ZHANG, Jian
张健
Title: DATA TRANSMISSION METHOD AND DEVICE, BASE STATION, AND USER EQUIPMENT
Abstract:
Embodiments of the present invention provide a data transmission method and device, a base station, and a User Equipment (UE), relating to the technical field of communications. The method comprises: detecting whether an unlicensed cell changes from an unavailable state to an available state; when the unlicensed cell changes from the unavailable state to the available state, determining whether an agreed number of sending occasions for particular communication information are missed during the last time the unlicensed cell is unavailable; if yes, additionally sending the communication information to a UE via the currently available unlicensed cell. It is determined, by determining whether an agreed number of sending occasions of for particular communication information are missed during the last time an unlicensed cell is unavailable, whether to additionally send the communication information; the communication information is additionally sent if the sending occasions are missed; or otherwise, the communication information is not additionally sent. This solves the problem that a UE may miss an agreed number of receiving occasions for particular communication information when an unlicensed cell is unavailable, and avoids high system overheads caused by additional sending of the particular communication information each time a frequency resource is obtained through contention.