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1. (WO2018137672) METHOD FOR SENDING AND RECEIVING DOWNLINK CONTROL INFORMATION, AND DEVICE

Pub. No.:    WO/2018/137672    International Application No.:    PCT/CN2018/074057
Publication Date: Fri Aug 03 01:59:59 CEST 2018 International Filing Date: Thu Jan 25 00:59:59 CET 2018
IPC: H04L 5/00
Applicants: HUAWEI TECHNOLOGIES CO., LTD.
华为技术有限公司
Inventors: MA, Ruixiang
马蕊香
LYU, Yongxia
吕永霞
Title: METHOD FOR SENDING AND RECEIVING DOWNLINK CONTROL INFORMATION, AND DEVICE
Abstract:
Provided are a method for sending and receiving downlink control information, and a device. The method comprises: a network device sending configuration information to a terminal device, wherein the configuration information comprises a scale factor corresponding to each aggregation level in a first aggregation level set; the network device sending DCI of a first DCI format to the terminal device, and the aggregation level corresponding to the DCI of the first DCI format being an aggregation level in the first aggregation level set; the terminal device receiving the configuration information sent by the network device; the terminal device determining, according to the scale factor corresponding to each aggregation level in the first aggregation level set, the number of candidate PDCCHs corresponding to each aggregation level in the first aggregation level set; and the terminal device receiving, according to the number of candidate PDCCHs corresponding to each aggregation level in the first aggregation level set, the DCI of the first DCI format. The present application can ensure reliability of a control channel for each service.