公开(公告)号：US20160360489A1

公开(公告)日：2016-12-08

申请号：US15173527

申请日：2016-06-03

Applicant: Apple Inc.

Inventor： Veerendra BOODANNAVAR ,  Kapil CHHABRA ,  Zheng ZENG

IPC: H04W52/02 ,  H04B7/04 ,  H04W28/02

CPC classification number: H04W28/0231 ,  H04B7/0413 ,  H04B7/0689 ,  H04W24/08 ,  H04W52/0235 ,  H04W52/0261 ,  H04W52/0274 ,  H04W84/12 ,  Y02B70/00 ,  Y02D70/00 ,  Y02D70/1262 ,  Y02D70/1264 ,  Y02D70/142 ,  Y02D70/144 ,  Y02D70/166 ,  Y02D70/22 ,  Y02D70/23 ,  Y02D70/26 ,  Y02D70/444

Abstract: Apparatus and methods for configuring wireless circuitry of a wireless communication device associated with a wireless local area network (WLAN) access point (AP) to use a reduced power consumption mode are disclosed. While associated with a multiple-input multiple-output (MIMO) WLAN AP and operating in a MIMO mode that includes at least two spatial streams for communication with multiple radio frequency (RF) receive chains active, the wireless communication device transmits a message indicating a request to use a spatial multiplexing power save (SMPS) mode that supports only one spatial stream and requires only a single active RF receive chain. The wireless communication device monitors packets received from the WLAN AP after a guard interval following the request and only switches to the SMPS mode when all packets received after the guard interval use only one spatial stream.

Abstract translation: 公开了用于配置与无线局域网（WLAN）接入点（AP）相关联的无线通信设备的无线电路以使用降低的功耗模式的装置和方法。 当与多输入多输出（MIMO）WLAN AP相关联并且在包括用于与多个射频（RF）接收链进行通信的至少两个空间流）的MIMO模式下操作时，无线通信设备发送指示 请求使用仅支持一个空间流的空间复用功率节省（SMPS）模式，并且仅需要单个有源RF接收链。 无线通信设备在请求之后的保护间隔之后监视从WLAN AP接收的分组，并且仅在保护间隔之后接收到的所有分组仅使用一个空间流时才切换到SMPS模式。

公开(公告)号：US20160359661A1

公开(公告)日：2016-12-08

申请号：US15166020

申请日：2016-05-26

Applicant: Apple Inc.

Inventor： Kapil CHHABRA ,  Udaykumar R. RAVAL ,  Zheng ZENG ,  Veerendra BOODANNAVAR ,  Sriram LAKSHMANAN ,  Saumin SHAH

IPC: H04L12/24 ,  H04W52/02 ,  H04B7/04

CPC classification number: H04W28/0231 ,  H04B7/0413 ,  H04B7/0689 ,  H04W24/08 ,  H04W52/0235 ,  H04W52/0261 ,  H04W52/0274 ,  H04W84/12 ,  Y02B70/00 ,  Y02D70/00 ,  Y02D70/1262 ,  Y02D70/1264 ,  Y02D70/142 ,  Y02D70/144 ,  Y02D70/166 ,  Y02D70/22 ,  Y02D70/23 ,  Y02D70/26 ,  Y02D70/444

Abstract: Apparatus and methods for configuring wireless circuitry of a wireless device to optimize power consumption based on operating states of the wireless device are disclosed. When associating with or while associated with a multiple-input multiple-output (MIMO) capable wireless local area network (WLAN) access point (AP), the wireless device configures the wireless circuitry to use a MIMO mode that includes at least two spatial streams for communication with multiple radio frequency (RF) receive chains active, a single-input single-output (SISO) mode or a multiple-input single-output (MISO) mode that includes only one spatial stream and a single RF receive chain active, or a single-input multiple-output (SIMO) mode that includes only one spatial stream and multiple RF receive chains active, based on balancing application requirements for data throughput with power saving modes to conserve battery levels. MIMO modes can be used when an active application benefits from MIMO rates or when transferring large files.

Abstract translation: 公开了一种用于基于无线设备的操作状态来配置无线设备的无线电路以优化功耗的装置和方法。 当与具有多输入多输出多输出（MIMO）能力的无线局域网（WLAN）接入点（AP）相关联或与其相关联时，无线设备将无线电路配置为使用MIMO模式，其包括至少两个空间流 用于与多个射频（RF）接收链有源的通信，仅包括一个空间流和单个RF接收链的单输入单输出（SISO）模式或多输入单输出（MISO）模式， 或单输入多输出（SIMO）模式，其仅包括一个空间流和多个RF接收链活跃，基于平衡数据吞吐量的应用需求和省电模式以节省电池电量。 当主动应用受益于MIMO速率或传输大文件时，可以使用MIMO模式。