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Title:
DEVICE AND METHOD FOR DOWNLINK GAIN COMPENSATION AS WELL AS RADIO UNIT COMPRISING THE DEVICE
Document Type and Number:
WIPO Patent Application WO/2019/034019
Kind Code:
A1
Abstract:
Device and method are disclosed for downlink gain compensation at a radio unit. According to an embodiment, the device comprises a pre-distortion circuit, a digital gain adjuster, a gain determiner and a first gain controller. The pre-distortion circuit is configured to generate and apply a pre-distortion to an input signal. The digital gain adjuster is configured to apply an adjustable gain to an output signal from the pre-distortion circuit. The gain determiner is configured to determine a gain difference between a target downlink gain and current downlink gain. The first gain controller is configured to control the digital gain adjuster based on the gain difference. A radio unit comprising the device is also disclosed.

Inventors:
LIU, Peng (No. 5 Lize East Street, Chaoyang District, Beijing 2, 100102, CN)
LIU, Yahui (No. 5 Lize East Street, Chaoyang District, Beijing 2, 100102, CN)
JIE, Junfeng (No. 5 Lize East Street, Chaoyang District, Beijing 2, 100102, CN)
WEN, Gan (No. 5 Lize East Street, Chaoyang District, Beijing 2, 100102, CN)
LIU, Guangfeng (No. 5 Lize East Street, Chaoyang District, Beijing 2, 100102, CN)
Application Number:
CN2018/100272
Publication Date:
February 21, 2019
Filing Date:
August 13, 2018
Export Citation:
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Assignee:
TELEFONAKTIEBOLAGET LM ERICSSON (PUBL) (S Stockholm, Stockholm, SE)
LIU, Peng (No. 5 Lize East Street, Chaoyang District, Beijing 2, 100102, CN)
International Classes:
H04K1/02; H03F1/26; H04B7/00
Foreign References:
US20060098758A12006-05-11
CN101981880A2011-02-23
CN102711229A2012-10-03
CN206498380U2017-09-15
Attorney, Agent or Firm:
ZHONGZI LAW OFFICE (7F New Era Building, 26 Pinganli Xidajie Xicheng District, Beijing 4, 100034, CN)
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