US Patent No. 10,462,778

METHOD, BASE STATION, AND USER EQUIPMENT FOR COMMUNICATING DOWNLINK CONTROL INFORMATION


Patent No. 10,462,778
Issue Date October 29, 2019
Title Method, Base Station, And User Equipment For Communicating Downlink Control Information
Inventorship Yingyang Li, Shenzhen (CN)
Chi Gao, Shenzhen (CN)
Assignee Huawei Device (Shenzhen) Co., Ltd., Shenzhen (CN)

Claim of US Patent No. 10,462,778

1. A method for transmitting downlink control information, comprising:mapping, by a base station, a physical downlink control channel (PDCCH) of a user equipment device (UE) to resource elements allocated for transmitting the PDCCH, wherein the resource elements are in L control channel elements (CCEs) allocated to the PDCCH, wherein L is an aggregation level and is greater than or equal to 1; and
transmitting, by the base station, the PDCCH to the UE by using the resource elements mapped with the PDCCH;wherein one or more orthogonal frequency division multiplexing (OFDM) symbols are used by the PDCCH, and each OFDM symbol comprises one or more resource elements that are allocated for transmitting the PDCCH;wherein the PDCCH carries the downlink control information; andwherein mapping the PDCCH to the resource elements in the L CCEs comprises:following an order of the OFDM symbols, in each OFDM symbol, mapping the PDCCH to the resource elements occupied by the L CCEs and allocated for transmitting the PDCCH according to an order of subcarriers in the OFDM symbol.