公开(公告)号：US09883472B1

公开(公告)日：2018-01-30

申请号：US14693744

申请日：2015-04-22

Applicant: Marvell International Ltd.

Inventor： Sagar A. Tamhane ,  Paul A. Lambert ,  Binh Quoc Tran ,  Sarang Shrikrishna Wagholikar ,  Liwen Chu ,  Hongyuan Zhang ,  Hui-Ling Lou

IPC: H04W84/20 ,  H04W56/00 ,  H04W4/08 ,  H04L29/08 ,  G01S5/00 ,  H04W40/38 ,  H04W40/24

CPC classification number: H04W56/001 ,  G01S5/0036 ,  H04L29/08306 ,  H04L29/08441 ,  H04L67/1044 ,  H04L67/1048 ,  H04W4/08 ,  H04W40/244 ,  H04W40/38 ,  H04W84/20

Abstract: The present disclosure describes methods and apparatus for beaconing within a wireless network based on an indication of distance. For certain example embodiments, in a wireless network in which a master device is a device configured to transmit a beacon within the wireless network, a first wireless communication device may determine, based on an indication of distance between two wireless communication devices, if the first wireless communication device is to act as a master device. For example, a wireless signal may be received. Based at least partially on the received wireless signal, an indication of distance between two wireless communication devices in a wireless network may be obtained. And based at least partially on the obtained indication of distance between the two wireless communication devices, it may be determined if a first wireless communication device is to act as a master device within the wireless network.

公开(公告)号：US09332485B1

公开(公告)日：2016-05-03

申请号：US13867368

申请日：2013-04-22

Applicant: Marvell International Ltd.

Inventor： Paul A. Lambert ,  Lu Chang

IPC: H04W48/16

CPC classification number: H04W48/16 ,  H04W8/005 ,  H04W48/14 ,  H04W52/0216 ,  Y02D70/142 ,  Y02D70/164 ,  Y02D70/22

Abstract: An integrated circuit includes a control module and a physical layer device. The control module (i) during each of multiple beacon intervals, operates a mobile device in a sleep mode or a listen mode, and (ii) for each of the beacon intervals, selects a length of the sleep mode or the listen mode such that resulting lengths of the sleep mode or the listen mode vary randomly. The control module partially or fully powers down the mobile device during the sleep mode. The physical layer device (i) wirelessly transmits, while the control module operates the mobile device in an active mode, a signal to discover one or more peers in a peer-to-peer network, and (ii) while the control module is operating the mobile device in the listen mode, receives responses to the signal. The control module determines which of the peers are discoverable based on the responses.

Abstract translation: 集成电路包括控制模块和物理层装置。 在多个信标间隔的每一个期间，控制模块（i）在睡眠模式或监听模式下操作移动设备，以及（ii）对于每个信标间隔，选择睡眠模式或听音模式的长度，使得 睡眠模式或听音模式的长度随机变化。 控制模块在睡眠模式期间部分或全部关闭移动设备。 物理层设备（i）在控制模块以活动模式操作移动设备的情况下无线地发送用于发现对等网络中的一个或多个对等体的信号，以及（ii）当控制模块正在操作时 处于监听模式的移动设备接收对该信号的响应。 控制模块基于响应确定哪些对等体可被发现。

公开(公告)号：US09014682B1

公开(公告)日：2015-04-21

申请号：US14188116

申请日：2014-02-24

Applicant: Marvell International Ltd.

Inventor： Paul A. Lambert

IPC: H04M3/00 ,  H04W56/00 ,  H04W52/02

CPC classification number: H04W56/00 ,  H04L67/325 ,  H04W52/0206 ,  H04W52/0225 ,  Y02D70/142 ,  Y02D70/146 ,  Y02D70/22

Abstract: A wireless device includes a wireless local area network (WLAN) transceiver configured to (i) selectively transition between operating in a power save mode and operating in a full power mode, and (ii) while operating in the full power mode, wirelessly communicate with a second wireless device. The wireless device also includes a mobile phone radio transceiver configured to receive, in accordance with a mobile phone protocol, time information from a first base station. The time information is based on a time reference maintained by the first base station. The wireless device also includes a controller configured to instruct the WLAN transceiver to transition to the full power mode upon expiration of a sleep period. The controller determines the expiration of the sleep period based on (i) the time information and (ii) an offset between the time reference and a second time reference maintained by a second base station.

Abstract translation: 无线设备包括无线局域网（WLAN）收发器，其被配置为（i）选择性地在节电模式下操作并以全功率模式操作，以及（ii）在全功率模式下操作时，与 第二无线设备。 无线设备还包括配置成根据移动电话协议从第一基站接收时间信息的移动电话无线电收发机。 时间信息是基于由第一基站维护的时间基准。 无线设备还包括控制器，其被配置为在睡眠周期结束时指示WLAN收发器转换到全功率模式。 控制器基于（i）时间信息和（ii）由第二基站维持的时间基准和第二时间基准之间的偏移来确定睡眠周期的期满。