Search International and National Patent Collections

1. (WO2018202154) METHOD FOR INDICATING TRANSMISSION PRECODING MATRIX AND DEVICE

Pub. No.:    WO/2018/202154    International Application No.:    PCT/CN2018/085681
Publication Date: Fri Nov 09 00:59:59 CET 2018 International Filing Date: Sat May 05 01:59:59 CEST 2018
IPC: H04L 1/00
H04B 7/0456
Applicants: HUAWEI TECHNOLOGIES CO., LTD.
华为技术有限公司
Inventors: REN, Haibao
任海豹
HUANG, Yi
黄逸
LI, Yuanjie
李元杰
Title: METHOD FOR INDICATING TRANSMISSION PRECODING MATRIX AND DEVICE
Abstract:
Provided in the present application are a method for indicating a transmission precoding matrix and a device. The method comprises: determining, according to downlink control information received from a network device, a bit number of a transmission precoding matrix indication field corresponding to uplink scheduling sub-bands, wherein the bit number of the transmission precoding matrix indication field corresponding to the sub-bands is related to the number of the sub-bands corresponding to uplink scheduling resources; and further determining, according to the bit number of the transmission precoding matrix indication field corresponding to the sub-bands and an uplink transmission layer number, an uplink transmission precoding matrix corresponding to the sub-bands. The present invention enables indication of an uplink transmission precoding matrix in frequency selection scheduling, and also achieves, according to the number of scheduling sub-bands, flexible adjustment on a bit number of a transmission precoding matrix indication field corresponding to the sub-bands, thus effectively taking advantage of the transmission precoding indication field and improving the utilization rate of control channel resources.