公开(公告)号：US20140233679A1

公开(公告)日：2014-08-21

申请号：US13770683

申请日：2013-02-19

Applicant: BROADCOM CORPORATION

Inventor： Ravikiran RAJAGOPAL ,  Jeffrey Scott PUTNAM ,  Ramon GOMEZ

IPC: H04L27/26

CPC classification number: H04L27/2649 ,  H03M1/002 ,  H03M1/12 ,  H03M1/18 ,  H04L27/2655 ,  H04L27/2684 ,  H04L27/2689 ,  H04W52/0216 ,  H04W52/0235 ,  H04W52/0274 ,  Y02D70/122 ,  Y02D70/168

Abstract: An auxiliary reduced power analog-to-digital converter (ADC) is provided for use during sleep periods of a receiver. The auxiliary ADC has a reduced dynamic range but sufficient accuracy to allow demodulation of signaling information contained in an input signal and to update control parameters used for synchronization and channel estimation. As such, a main higher power, higher dynamic range ADC can be turned off during sleep periods, reducing receiver power consumption. The main ADC is turned on at the end of a sleep period, and the receiver can be ready for receiving data immediately using the main ADC because the control parameters are maintained up to date during the sleep period using the auxiliary ADC.

Abstract translation: 提供辅助降低功率模数转换器（ADC）以在接收机的睡眠期间使用。 辅助ADC具有减小的动态范围，但具有足够的精度，以允许解调包含在输入信号中的信令信息并且更新用于同步和信道估计的控制参数。 因此，主要的高功率，较高动态范围的ADC可以在休眠期间关闭，从而降低了接收机的功耗。 主ADC在睡眠周期结束时打开，接收器可以准备好立即使用主ADC接收数据，因为在使用辅助ADC的睡眠期间，控制参数保持最新。

公开(公告)号：US20150327174A1

公开(公告)日：2015-11-12

申请号：US14680824

申请日：2015-04-07

Applicant: Broadcom Corporation

Inventor： Ravikiran RAJAGOPAL ,  Jeffrey Scott Putnam ,  Ramon Gomez

IPC: H04W52/02 ,  H03M1/00 ,  H03M1/18 ,  H04L27/26

CPC classification number: H04L27/2649 ,  H03M1/002 ,  H03M1/12 ,  H03M1/18 ,  H04L27/2655 ,  H04L27/2684 ,  H04L27/2689 ,  H04W52/0216 ,  H04W52/0235 ,  H04W52/0274 ,  Y02D70/122 ,  Y02D70/168

Abstract: An auxiliary reduced power analog-to-digital converter (ADC) is, provided for use during sleep periods of a receiver. The auxiliary ADC has a reduced dynamic range but sufficient accuracy to allow demodulation of signaling information contained in an input signal and to update control parameters used for synchronization and channel estimation. As such, a main higher power, higher dynamic range ADC can be turned off during sleep periods, reducing receiver power consumption. The main ADC is turned on at the end of a sleep period, and the receiver can be ready for receiving data immediately using the main ADC because the control parameters are maintained up to date during the sleep period using the auxiliary ADC.

Abstract translation: 辅助降低功率模数转换器（ADC）被提供用于在接收器的睡眠期间使用。 辅助ADC具有减小的动态范围，但具有足够的精度，以允许解调包含在输入信号中的信令信息并且更新用于同步和信道估计的控制参数。 因此，主要的高功率，较高动态范围的ADC可以在休眠期间关闭，从而降低了接收机的功耗。 主ADC在睡眠周期结束时打开，接收器可以准备好立即使用主ADC接收数据，因为在使用辅助ADC的睡眠期间，控制参数保持最新。