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1. (WO2018085154) WIRELESS COMMUNICATION BETWEEN WIDEBAND ENB AND NARROWBAND UE

Pub. No.:    WO/2018/085154    International Application No.:    PCT/US2017/058853
Publication Date: Sat May 12 01:59:59 CEST 2018 International Filing Date: Sat Oct 28 01:59:59 CEST 2017
IPC: H04W 74/08
Applicants: QUALCOMM INCORPORATED
Inventors: YERRAMALLI, Srinivas
KADOUS, Tamer
LIU, Chih-Hao
PATEL, Chirag
RICO ALVARINO, Alberto
Title: WIRELESS COMMUNICATION BETWEEN WIDEBAND ENB AND NARROWBAND UE
Abstract:
A method and apparatus for wireless communication in the unlicensed spectrum between an eNB and UEs having different bandwidths, e.g., between a narrowband UE and a wideband eNB. A base station apparatus performs an LBT procedure at a beginning of frames and transmits a plurality of repetitions of a transmission. When the plurality of repetitions span multiple frames and the LBT procedure is not successful for a first frame, the base station drops or postpones at least one repetition in the first frame until a second frame when the LBT procedure is successful. A UE receives the plurality of repetitions and may combine a plurality of repetitions across multiple frames. The UE may determine whether the base station drops the at least one repetition in the first frame or postpones the at least one repetition in the first frame until a second frame.