DOPPLER FREQUENCY OFFSET ESTIMATION METHOD AND COMMUNICATION DEVICE

WIPO Patent Application WO/2021/008451

A1

Disclosed in the embodiments of the present application are a Doppler frequency offset estimation method and a communication device. The method comprises: a base station measures the Doppler frequency offset of each of multiple mobile terminals accessing the base station, to obtain the frequency offset value of each mobile terminal; the base station groups the multiple mobile terminals according to the frequency offset value of each of the multiple mobile terminals to obtain multiple groups of mobile terminals; the base station determines a reference frequency offset estimation value or a reference frequency offset interval for each of the multiple groups of mobile terminals; the base station determines, according to the reference frequency offset estimation value or reference frequency offset interval corresponding to each group of mobile terminals, a target frequency offset estimation value corresponding to each mobile terminal in each group of mobile terminals. Hence, the frequency offset estimation value determined by the base station for a mobile terminal having poor signal quality on the basis of relatively accurate reference frequency offset estimation value or reference frequency offset interval is more accurate than the frequency offset estimation value determined on the basis of the frequency offset measurement value of the mobile terminal having poor signal quality.

DAI XITAO (CN)
XU HENG (CN)
WANG WEIXIN (CN)

PCT/CN2020/101291

January 21, 2021

July 10, 2020

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HUAWEI TECH CO LTD (CN)

H04L27/00

CN102595468A	2012-07-18
CN102611484A	2012-07-25
CN105007241A	2015-10-28
US20140369243A1	2014-12-18

SHENPAT INTELLECTUAL PROPERTY AGENCY (CN)

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