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1. (WO2018219333) ENHANCED CHANNEL ACCESS MECHANISMS FOR WIDE BAND OPERATION ON UNLICENSED BANDS

Pub. No.:    WO/2018/219333    International Application No.:    PCT/CN2018/089354
Publication Date: Fri Dec 07 00:59:59 CET 2018 International Filing Date: Fri Jun 01 01:59:59 CEST 2018
IPC: H04W 72/04
Applicants: HUAWEI TECHNOLOGIES CO., LTD.
Inventors: ZHANG, Jiayin
SALEM, Mohamed Adel
ZHU, Jun
Title: ENHANCED CHANNEL ACCESS MECHANISMS FOR WIDE BAND OPERATION ON UNLICENSED BANDS
Abstract:
A method for dynamically dividing or consolidating sub-bands in-between Clear Channel Assessment (CCA) status measurements upon detection of a CCA bandwidth adjustment condition is provided. The method includes determining at least a single CCA status for at least a single sub-band during a first period, and detecting a CCA bandwidth adjustment condition for dividing the single sub-band into two or more separate sub-bands, where a combination of the two or more separate sub-bands occupies the same frequency band as the single sub-band. The method also includes determining a separate CCA status for each of the two or more separate sub-bands during a second period. An apparatus for performing this method is also provided.