Title:
METHOD AND APPARATUS FOR PROCESSING UPLINK FREQUENCY SHIFT OF COMMUNICATION SYSTEM
Document Type and Number:
WIPO Patent Application WO/2018/223897
Kind Code:
A1
Abstract:
Disclosed are a method and apparatus for processing an uplink frequency offset of a communication system. The method at a base station side comprises: demodulating a random access message sent by a terminal to obtain an initial Doppler frequency offset of the terminal and issue same to the terminal; receiving an uplink subframe signal sent by the terminal, estimating a residual Doppler frequency offset of the terminal at an uplink, obtaining a frequency adjustment amount according to the residual Doppler frequency offset and issuing same to the terminal. The method at the terminal side comprises: receiving an initial Doppler frequency offset sent by a base station, and obtaining an initial transmission frequency of an uplink and sending an uplink subframe signal according to an initial transmission frequency and an initial Doppler frequency offset of a downlink; and receiving a frequency adjustment amount sent by the base station, and obtaining the next transmission frequency of the uplink according to the frequency adjustment amount.
Inventors:
HOU XIAOHUI (CN)
YANG FENG (CN)
LU QINBO (CN)
YANG FENG (CN)
LU QINBO (CN)
Application Number:
PCT/CN2018/089489
Publication Date:
December 13, 2018
Filing Date:
June 01, 2018
Export Citation:
Assignee:
ZTE CORP (CN)
International Classes:
H04W56/00
Foreign References:
| CN101604990A | 2009-12-16 | |||
| CN101902774A | 2010-12-01 | |||
| US20100067634A1 | 2010-03-18 |
Other References:
See also references of EP 3637885A4
Attorney, Agent or Firm:
BEYOND ATTORNEYS AT LAW (CN)
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