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1. (WO2018126787) UPLINK AUTHORIZATION-FREE USER ACTIVATION DETECTION METHOD, DEVICE, AND BASE STATION

Pub. No.:    WO/2018/126787    International Application No.:    PCT/CN2017/110072
Publication Date: Fri Jul 13 01:59:59 CEST 2018 International Filing Date: Fri Nov 10 00:59:59 CET 2017
IPC: H04W 12/06
H04L 5/00
Applicants: GIONEE COMMUNICATION EQUIPMENT CO., LTD., SHENZHEN
深圳市金立通信设备有限公司
Inventors: WANG, Sanxin
王三新
Title: UPLINK AUTHORIZATION-FREE USER ACTIVATION DETECTION METHOD, DEVICE, AND BASE STATION
Abstract:
Embodiments of the present invention disclose an uplink authorization-free user activation detection method. The method comprises: determining user equipment multiplexed in respective resource groups, and distributing a pilot sequence to each piece of user equipment, in which there are low cross-correlations between different pilot sequences; a scattered pilot symbol in any subframe receiving pilot data; and determining, according to the pilot sequences of all pieces of the user equipment multiplexed in the resource group, the pilot data in the scattered pilot symbol and a compressed sensing algorithm, at least one piece of user equipment transmitting the pilot data. The embodiments of the present invention abstract out the issue of compressed sensing from of the issue of authorization-free activation detection, and determine at least one piece of user equipment transmitting the pilot data at a base station side via a compressed sensing algorithm to provide a basis for subsequent processes (for example, channel estimation) so as to ensure favorable authorization-free performance. The embodiments of the present invention further disclose an uplink authorization-free user activation detection device and base station.