公开(公告)号：US20150215141A1

公开(公告)日：2015-07-30

申请号：US14562890

申请日：2014-12-08

Applicant: ERICSSON MODEMS SA

Inventor： Jean-Marc Aznar ,  Stefania Sesia ,  Laurent Noel

IPC: H04L27/08 ,  H04L27/06 ,  H04L27/156

CPC classification number: H04L27/08 ,  H03G3/3078 ,  H03G3/3089 ,  H04L27/06 ,  H04L27/156

Abstract: An automatic gain control (AGC) method and system for a radio receiver are proposed in which the ACG comprises two AGC loops; a first loop controlling signal gain in the analogue portion of the radio receiver, a second loop controlling gain in the digital domain after digitization of the received signal. The analogue AGC loop has a slower response time than the digital AGC loop. When applied to a multi-branch diversity receiver, each branch has its own digital AGC loop, but the analogue gain can be common to all branches, based on measurement of the analogue signal in each branch.

Abstract translation: 提出了一种用于无线电接收机的自动增益控制（AGC）方法和系统，其中ACG包括两个AGC环路; 在无线电接收机的模拟部分中的第一环路控制信号增益，第二环路在接收信号的数字化之后控制数字域中的增益。 模拟AGC环路的响应时间比数字AGC环路慢。 当应用于多分支分集接收机时，每个分支具有其自己的数字AGC环路，但是基于每个分支中的模拟信号的测量，模拟增益可以被所有分支所共有。

公开(公告)号：US09461853B2

公开(公告)日：2016-10-04

申请号：US14562890

申请日：2014-12-08

Applicant: ERICSSON MODEMS SA

Inventor： Jean-Marc Aznar ,  Stefania Sesia ,  Laurent Noel

IPC: H04L27/08 ,  H03G3/30 ,  H04L27/06 ,  H04L27/156

CPC classification number: H04L27/08 ,  H03G3/3078 ,  H03G3/3089 ,  H04L27/06 ,  H04L27/156

Abstract: An automatic gain control (AGC) method and system for a radio receiver are proposed in which the ACG comprises two AGC loops; a first loop controlling signal gain in the analogue portion of the radio receiver, a second loop controlling gain in the digital domain after digitization of the received signal. The analogue AGC loop has a slower response time than the digital AGC loop. When applied to a multi-branch diversity receiver, each branch has its own digital AGC loop, but the analogue gain can be common to all branches, based on measurement of the analogue signal in each branch.

Abstract translation: 提出了一种用于无线电接收机的自动增益控制（AGC）方法和系统，其中ACG包括两个AGC环路; 在无线电接收机的模拟部分中的第一环路控制信号增益，第二环路在接收信号的数字化之后控制数字域中的增益。 模拟AGC环路的响应时间比数字AGC环路慢。 当应用于多分支分集接收机时，每个分支具有其自己的数字AGC环路，但是基于每个分支中的模拟信号的测量，模拟增益可以被所有分支所共有。