公开(公告)号：EP2151049B1

公开(公告)日：2015-04-01

申请号：EP08755494.5

申请日：2008-05-15

申请人： Qualcomm Incorporated

发明人： LEE, Meelan ,  SI, William W. ,  WEBER, David J.

IPC分类号： H03F1/02 ,  H03F3/217 ,  H03F3/24 ,  H03F3/45 ,  H03F3/72 ,  H04B1/40 ,  H04B1/04 ,  H04L27/20

CPC分类号： H04L27/20 ,  H03F1/02 ,  H03F1/0277 ,  H03F3/217 ,  H03F3/24 ,  H03F3/245 ,  H03F3/45179 ,  H03F3/72 ,  H03F2200/324 ,  H03F2200/333 ,  H03F2200/432 ,  H03F2203/45394 ,  H04B1/406 ,  H04B2001/045

公开(公告)号：EP2981873B1

公开(公告)日：2020-05-27

申请号：EP14724901.5

申请日：2014-04-02

申请人： Qualcomm Incorporated

发明人： HOMCHAUDHURI, Sandip ,  DUNCAN, Joseph ,  ZHANG, Xiaoru ,  LEE, Meelan ,  JAYARAMAN, Arunkumar ,  LIN, Derrick, Chu ,  MEHTA, Srenik

IPC分类号： G06F1/3206 ,  G06F1/324 ,  G06F1/3296 ,  H04W52/02

公开(公告)号：EP2981873A1

公开(公告)日：2016-02-10

申请号：EP14724901.5

申请日：2014-04-02

申请人： Qualcomm Incorporated

发明人： HOMCHAUDHURI, Sandip ,  DUNCAN, Joseph ,  ZHANG, Xiaoru ,  LEE, Meelan ,  JAYARAMAN, Arunkumar ,  LIN, Derrick, Chu ,  MEHTA, Srenik

IPC分类号： G06F1/32 ,  H04W52/02

摘要： Methods and apparatuses are described in which dynamic voltage and frequency scaling may be used to save power when processing packets in a wireless communications device. In some cases, inframe detection may allow the device to determine whether to transition from a first (e.g., lower) voltage level to a second (e.g., higher) voltage level to process one or more packets of a received frame. For some packet types the first voltage level may be maintained. In other cases, the device may determine a bandwidth to use from among multiple bandwidths supported by the device. The bandwidth may be determined based on channel conditions. A voltage level may be identified that corresponds to the determined bandwidth and a processing voltage may be scaled to the identified voltage level. The device may be configured to operate in wireless local area network (WLAN) and/or in a cellular network (e.g., LTE).