公开(公告)号：US09397821B2

公开(公告)日：2016-07-19

申请号：US14776941

申请日：2013-04-17

Applicant: ST-Ericsson SA

Inventor： Jian Nie ,  Jishui Li ,  Wei Liu

IPC: H04L27/14 ,  H04L27/16 ,  H04L27/22 ,  H04L7/00 ,  H04L27/26 ,  H04L7/02 ,  H04W88/06

CPC classification number: H04L7/0016 ,  H04L7/02 ,  H04L27/2657 ,  H04W88/06

Abstract: Handling a frequency error (FEQ) of a terminal which includes a plurality of modems using a same clock source includes: obtaining the FEQ, which is a difference between a carrier frequency of a received signal and a nominal frequency for each modem; obtaining a FEQ threshold of the received signal in a current service based on the FEQ; obtaining an adjusted value of the clock source corresponding to each modem based on the FEQ and the FEQ threshold; obtaining a synthesized adjusted value of the clock source based on the adjusted values of all the modems; and adjusting the frequency of the clock source based on the synthesized adjusted value of the clock source. The FEQ of the mobile communication terminal can be quickly corrected by adjusting the clock source's frequency, and, by considering the FEQ of all the modems, the modems' performances may be balanced.

Abstract translation: 使用相同的时钟源处理包括多个调制解调器的终端的频率误差（FEQ）包括：获得FEQ，其是接收信号的载波频率和每个调制解调器的标称频率之间的差; 基于所述FEQ在当前服务中获得所接收信号的FEQ阈值; 基于FEQ和FEQ阈值获得对应于每个调制解调器的时钟源的调整值; 基于所有调制解调器的调整值获得时钟源的合成调整值; 并且基于时钟源的合成调整值来调整时钟源的频率。 可以通过调整时钟源的频率来快速校正移动通信终端的FEQ，并且通过考虑所有调制解调器的FEQ，可以平衡调制解调器的性能。