公开(公告)号：US20240389021A1

公开(公告)日：2024-11-21

申请号：US18781941

申请日：2024-07-23

Applicant: Apple Inc.

Inventor： Sriram Lakshmanan ,  Tushar Ramanlal Shah ,  Udaykumar R. Raval ,  Bernd Willi Adler ,  Dongwoon Hahn ,  Shehla S. Rana ,  Yang Yu ,  Rajneesh Kumar ,  Veerendra Boodannavar ,  Yann Ly-Gagnon ,  Duy N. Phan ,  Karan Sawhney ,  Rohit Sharma ,  Sarin S. Mehta

IPC: H04W52/02 ,  H04W8/00 ,  H04W24/10

Abstract: Embodiments disclosed herein relate to reducing power consumption of an electronic device scanning for wireless communication signals while maintaining or even improving an efficiency of the scanning operations. To do so, the electronic device may include more than one scan core, such as a main core and a receiving core. The receiving core may have limited functionality compared to the main core. For example, the receiving core may only receive wireless signals (including scanning for wireless signals). That is, the receiving core may not support certain operations that consume relative high power that are supported by the main core, such as transmission of signals. In this way, operation of the receiving core, either in place of or in addition to the main core, may reduce power consumption of the electronic device by avoiding high power consuming operations, such as data transmission, while scanning for various signals.

公开(公告)号：US20220078704A1

公开(公告)日：2022-03-10

申请号：US17373488

申请日：2021-07-12

Applicant: Apple Inc.

Inventor： Sriram Lakshmanan ,  Tushar Ramanlal Shah ,  Udaykumar R. Raval ,  Bernd Willi Adler ,  Dongwoon Hahn ,  Shehla S. Rana ,  Yang Yu ,  Rajneesh Kumar ,  Veerendra Boodannavar ,  Yann Ly-Gagnon ,  Duy N. Phan ,  Karan Sawhney ,  Rohit Sharma ,  Sarin S. Mehta

IPC: H04W52/02 ,  H04W24/10 ,  H04W8/00

Abstract: Embodiments disclosed herein relate to reducing power consumption of an electronic device scanning for wireless communication signals while maintaining or even improving an efficiency of the scanning operations. To do so, the electronic device may include more than one scan core, such as a main core and a receiving core. The receiving core may have limited functionality compared to the main core. For example, the receiving core may only receive wireless signals (including scanning for wireless signals). That is, the receiving core may not support certain operations that consume relative high power that are supported by the main core, such as transmission of signals. In this way, operation of the receiving core, either in place of or in addition to the main core, may reduce power consumption of the electronic device by avoiding high power consuming operations, such as data transmission, while scanning for various signals.

公开(公告)号：US10791511B2

公开(公告)日：2020-09-29

申请号：US16428314

申请日：2019-05-31

Applicant: Apple Inc.

Inventor： Veerendra Boodannavar ,  Ronald K. Huang ,  Rajneesh Kumar ,  Kapil Chhabra ,  Faraz Faheem

IPC: H04W52/02 ,  H04W88/08 ,  H04W52/28 ,  H04W84/12

Abstract: Some embodiments enable low power mode for wireless local area network (WLAN) subsystem of an electronic device to improve power usage at the electronic device and increase response time of the WLAN subsystem to prioritized application(s). For example, a method includes enabling a sleep mode of the WLAN subsystem of the electronic device. The electronic device maintains a connection with an access point of a wireless network during the sleep mode. The method further includes receiving a request from an application to communicate with the wireless network. The application is included in a list of prioritized applications. In response to determining that a metric associated with the sleep mode does not exceed a power budget, the sleep mode of the WLAN subsystem is suspended and the communication between the application and the access point of the wireless network is enabled (after the suspension of the sleep mode).

公开(公告)号：US20200007199A1

公开(公告)日：2020-01-02

申请号：US16023607

申请日：2018-06-29

Applicant: Apple Inc.

Inventor： Ping Wang ,  Guoqing Li ,  Veerendra Boodannavar ,  Daniel R. Borges ,  Sreevalsan Vallath

IPC: H04B7/0452

Abstract: Disclosed herein are system, method, and computer program product embodiments for indicating a preference to receive a single-user multiple input multiple output (SU-MIMO) or multi-user multiple input multiple output (MU-MIMO) transmission from an access point (AP). Embodiments include generating a standard action frame that contains an action field that species a preference to receive a SU-MIMO or MU-MIMO transmission from the AP. A station (STA) can transmit the generated action frame to the AP. The STA can receive an acknowledgement frame from the AP that indicates the AP is configured to use the requested transmission method. The STA can then receive data from the AP using the requested transmission method.

公开(公告)号：US20190223101A1

公开(公告)日：2019-07-18

申请号：US16245323

申请日：2019-01-11

Applicant: Apple Inc.

Inventor： Guoqing Li ,  Veerendra Boodannavar ,  Zheng Zeng ,  Yong Liu ,  Christiaan A. Hartman ,  Jarkko L. Kneckt

IPC: H04W52/02 ,  H04W76/11 ,  H04W8/00

CPC classification number: H04W52/0229 ,  H04W8/005 ,  H04W52/0206 ,  H04W76/11 ,  H04W84/12

Abstract: An interface circuit in an electronic device (such as an access point) may provide a wake-up-radio (WUR) discovery frame for a recipient electronic device, where the WUR discovery frame includes an operating class of a wireless local area network (WLAN) associated with the electronic device. The operating class may specify a regulatory domain and a channel set of the WLAN. Moreover, the WUR discovery frame may include an index of a channel in the channel set. Furthermore, the WUR discovery frame may include a compressed or a partial identifier associated with the electronic device or the WLAN. The amount of compression may be based at least in part on a communication environment of the electronic device, such as a number of electronic devices, or a number of neighboring WLANs. Thus, the WUR discovery frame may have a variable size or length.

公开(公告)号：US10070339B2

公开(公告)日：2018-09-04

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: H04W28/02 ,  H04B7/0413 ,  H04W52/02 ,  H04W24/08 ,  H04B7/06 ,  H04W84/12

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.

公开(公告)号：US09992733B2

公开(公告)日：2018-06-05

申请号：US14292620

申请日：2014-05-30

Applicant: APPLE INC.

Inventor： Welly Kasten ,  Chaitanya Mannemala ,  Kapil Chhabra ,  Veerendra Boodannavar

IPC: H04W36/30 ,  H04W48/16 ,  H04W8/18 ,  H04W48/20

CPC classification number: H04W48/16 ,  H04W8/18 ,  H04W48/20

Abstract: A method, station and computer readable storage medium used to perform opportunistic roaming procedures. A station joined to a basic service set (BSS) of an access point (AP) performs a method including determining a roam profile for the station, the roam profile indicating at least one of available operating bands or available APs for the station, determining a first value associated with a network parameter of the joined AP, determining at least one roam candidate AP having a second value associated with the network parameter corresponding to the roam candidate AP, wherein the first and second values are a received signal strength indicator, determining whether a predetermined criteria value is satisfied based upon the first and second values, wherein the predetermined criteria value is a minimum difference between the first value and second value and roaming to the roam candidate AP when the predetermined criteria value is satisfied.