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1. (WO2018028617) METHOD FOR DETERMINING HYBRID AUTOMATIC REPEAT REQUEST PROCESS NUMBER, BASE STATION, AND USER EQUIPMENT

Pub. No.:    WO/2018/028617    International Application No.:    PCT/CN2017/096718
Publication Date: Fri Feb 16 00:59:59 CET 2018 International Filing Date: Fri Aug 11 01:59:59 CEST 2017
IPC: H04L 5/00
Applicants: NTT DOCOMO, INC.
株式会社NTT都科摩
Inventors: MU, Qin
牟勤
LIU, Liu
刘柳
JIANG, Huiling
蒋惠玲
OKUBO, Naoto
大久保尚人
TAKEDA, Kazuaki
武田和晃
Title: METHOD FOR DETERMINING HYBRID AUTOMATIC REPEAT REQUEST PROCESS NUMBER, BASE STATION, AND USER EQUIPMENT
Abstract:
Disclosed are a method for determining a hybrid automatic repeat request (HARQ) process number (HPN) allocated to downlink link (DL) data, a method for notifying an HPN allocated to the DL data, a method for allocating an HPN to DL data, a base station, and a user equipment. The method for determining an HPN allocated to DL data comprises: receiving DL control information (DCI) associated with DL data; determining, according to the DCI, whether the DL data satisfies a preset condition; and when the DL data satisfies the preset condition, determining, according to an HPN field and an additional field in the DCI, an HPN allocated to the DL data. Alternatively, the method for determining an HPN allocated to DL data comprises: receiving DCI related to current DL data; determining whether HPN fields in the DC are preset values indicating at least a first HPN and a second HPN; and when it is determined that the HPN fields are preset values, determining an HPN allocated to the current DL data, according to a reception state of DL data sent before the current DL data. Accordingly, overheads and power consumption are not increased when more than 8 HARQ processes are supported.