US Patent No. 9,467,954

POWER ADJUSTMENT METHOD AND APPARATUS BASED ON LOW DELAY POWER DETECTION BEFORE DPD


Patent No. 9,467,954
Issue Date October 11, 2016
Title Power Adjustment Method And Apparatus Based On Low Delay Power Detection Before Dpd
Inventorship Zhen Cao, Shenzhen (CN)
Hao Qiu, Shenzhen (CN)
Wei Chen, Shenzhen (CN)
Cong Xiao, Shenzhen (CN)
Xuelong Yuan, Shenzhen (CN)
Assignee ZTE Corporation, Shenzhen, Guangdong (CN)

Claim of US Patent No. 9,467,954

1. A method for power adjustment based on low-delay power detection before Digital Pre-Distortion (DPD), the method comprising
steps of:
obtaining, by a power management computing device, effective carrier information including an effective carrier channel corresponding
to an effective carrier based on preconfigured system carrier information, wherein the effective carrier is a carrier bearing
information;

sampling, by the power management computing device, carrier data on an effective carrier channel based on the obtained effective
carrier information;

determining, by the power management computing device, total power of effective carriers before Digital Up Conversion (DUC)
or before digital Crest Factor Reduction (CFR) based on the sampled carrier data on the effective carrier channel; and

performing, by the power management computing device, power adjustment using the total power of the effective carriers prior
to DPD by searching a power compensating search table for a compensating entry corresponding to the total power of the effective
carriers and determining according to the compensating entry, an adjusted power value to be sent into a DPD module.