公开(公告)号：US20150341868A1

公开(公告)日：2015-11-26

申请号：US14762968

申请日：2013-10-14

申请人： ZTE CORPORATION

发明人： Zhen CAO ,  Hao QIU ,  Wei CHEN ,  Cong XIAO ,  Xuelong YUAN

IPC分类号： H04W52/30 ,  H04B17/364 ,  H04W52/18

CPC分类号： H04W52/30 ,  H03F1/3223 ,  H03F1/3241 ,  H03F3/195 ,  H03F3/24 ,  H04B17/364 ,  H04L27/2614 ,  H04L27/367 ,  H04W52/18 ,  H04W52/52

摘要： Disclosed are a power adjustment method and an apparatus based on low delay power detection before digital pre-distortion. The method comprises the following steps: according to pre-configured system carrier information, obtaining effective carrier information containing an effective carrier channel corresponding to each effective carrier; performing sampling on carrier data of each effective carrier channel according to the obtained effective carrier information, and then calculating combination power Pa of effective carriers before digital up conversion or digital peak clipping cancellation according to the sampling; and using the combination power Pa of the effective carriers to perform power adjustment before digital pre-distortion. The present invention moves power calculation ahead of an up conversion module, fully utilizes inherent delay of digital up conversion and a peak clipping module to offset time required for the power calculation, and effectively reduces system delay.

摘要翻译： 公开了一种功率调节方法和基于数字预失真之前的低延迟功率检测的装置。 该方法包括以下步骤：根据预配置的系统载波信息，获得包含与每个有效载波对应的有效载波信道的有效载波信息; 根据获得的有效载波信息对每个有效载波信道的载波数据进行采样，然后根据采样计算数字上变频或数字峰值限幅消除之前的有效载波的组合功率Pa; 并使用有效载波的组合功率Pa进行数字预失真之前的功率调整。 本发明在上转换模块之前移动功率计算，充分利用数字上变频的固有延迟和峰值限幅模块来抵消功率计算所需的时间，并有效地减少系统延迟。