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Patent Searching and Data


Title:
REMOTE RADIO FREQUENCY UNIT CHANNEL CORRECTION METHOD, DEVICE AND SYSTEM
Document Type and Number:
WIPO Patent Application WO/2015/035948
Kind Code:
A1
Abstract:
The present invention relates to the technical field of communications technology, and specifically to a method, a device and a system for channel correction of a remote radio frequency unit. A first remote radio frequency unit in communication with a baseband unit comprises a service transmission channel and a standing wave detection channel; the working frequency of the service transmission channel and that of the standing wave detection channel are identical; the service transmission channel is used for transmission of a correction signal, said correction signal being sent to the remote radio frequency unit by the baseband unit; the standing wave detection channel is used for receiving correction signals by means of antennna loopback and for transmitting the correction signals so received to the baseband unit, thus allowing the baseband unit to calculate correction coefficients for each service transmission channel on the basis of the correction signals received by antenna loopback, and thus to carry out channel correction for each such service transmission channel. The correction signals received by antenna loopback comprise at least the correction signals transmitted on all the service transmission channels of the first remote radio frequency unit.

Inventors:
YI XIONGSHU (CN)
ZHANG CHAOCHAO (CN)
GUAN LU (CN)
LIU YUN (CN)
Application Number:
PCT/CN2014/086480
Publication Date:
March 19, 2015
Filing Date:
September 15, 2014
Export Citation:
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Assignee:
HUAWEI TECH CO LTD (CN)
International Classes:
H04L25/02
Foreign References:
CN101621842A2010-01-06
CN102315868A2012-01-11
Other References:
See also references of EP 3043524A4
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