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1. 发明授权

US09854468B2 Method and apparatus for estimating distance between network devices in a wireless network 有权
公开(公告)号：US09854468B2
公开(公告)日：2017-12-26
申请号：US14639450
申请日：2015-03-05
申请人： Marvell World Trade Ltd.
发明人： Liwen Chu , Sagar A. Tamhane , Sarang Shrikrishna Wagholikar , Hongyuan Zhang , Hui-Ling Lou
IPC分类号： H04W64/00 , H04W24/10 , H04L29/08 , H04W4/00 , G01S13/74 , H04W84/12
CPC分类号： H04W24/10 , G01S13/74 , H04L67/104 , H04W4/38 , H04W64/00 , H04W84/12
摘要： A first wireless communication device including a timing module and a fine timing measurement module. The timing module is configured to provide a first timer value. The fine timing measurement module is configured to receive, from a second wireless communication device, a first request to perform a fine timing measurement to determine a distance between the first wireless communication device and the second wireless communication device, and transmit a first response including a first time to start a burst period for performing the fine timing measurement. The first time is one of included in the request received from the second wireless communication device and based on the first timer value. The fine timing measurement module is further configured to perform the fine timing measurement in the burst period starting at the first time.

2. 发明授权

US09485767B2 Method and apparatus for facilitating the coexistence of wireless communications of different wireless communication technologies 有权
标题翻译：用于促进不同无线通信技术的无线通信共存的方法和装置
公开(公告)号：US09485767B2
公开(公告)日：2016-11-01
申请号：US14702000
申请日：2015-05-01
申请人： Marvell World Trade Ltd.
发明人： Sarang Shrikrishna Wagholikar , Harish Ramamurthy , Rajesh Shreeram Bhagwat , Matthew L. Semersky
IPC分类号： H04W72/04 , H04L5/00 , H04W84/12
CPC分类号： H04W72/0446 , H04L5/0092 , H04W16/14 , H04W72/1215 , H04W72/1278 , H04W84/12 , H04W88/02 , H04W88/06
摘要： A first wireless communication device including a first transceiver and a second transceiver. The first transceiver is configured to transmit first signals according to a first wireless communication technology. The second transceiver is configured to transmit second signals according to a second wireless communication technology. Memory is configured to store a schedule that identifies first intervals for allowing communication using the first signals and second intervals for allowing communication using the second signals. A coexistence circuit is configured to allow the first transceiver to transmit the first signals only during the first intervals, allow the second transceiver to transmit the second signals only during the second intervals, and cause the first transceiver to transmit, prior to each of the second intervals, a message that indicates a duration of a respective one of the second intervals.
摘要翻译：包括第一收发器和第二收发器的第一无线通信设备。第一收发器被配置为根据第一无线通信技术发送第一信号。第二收发器被配置为根据第二无线通信技术发送第二信号。存储器被配置为存储标识用于允许使用第一信号的通信的第一间隔的调度，以及用于允许使用第二信号的通信的第二间隔。共存电路被配置为允许第一收发器仅在第一间隔期间发送第一信号，允许第二收发器仅在第二间隔期间发送第二信号，并且使第一收发器在第二收发器中的每一个之前发送第二信号间隔，指示第二间隔中的相应一个的持续时间的消息。

3. 发明授权

US10681578B2 Method and apparatus for performing a fine timing measurement in a wireless network 有权
公开(公告)号：US10681578B2
公开(公告)日：2020-06-09
申请号：US15845176
申请日：2017-12-18
申请人： Marvell World Trade Ltd.
发明人： Liwen Chu , Sagar A. Tamhane , Sarang Shrikrishna Wagholikar , Hongyuan Zhang , Hui-Ling Lou
IPC分类号： H04W24/10 , H04L29/08 , H04W4/38 , G01S13/74 , H04W84/12 , H04W64/00
摘要： A first wireless communication device includes a timing module to provide a timing synchronization function (TSF) time. A fine timing measurement module is to transmit a first request to perform a fine timing measurement to determine a distance between the first wireless communication device and a second wireless communication device. The first request includes a first value of the TSF time at which to start a burst period of the fine timing measurement, and the first value is determined in accordance with the TSF time provided by the timing module. The fine timing measurement module is further to receive a first response as transmitted from the second wireless communication device in response to the first request and transmit a second request to start the burst period at a TSF time indicated by the first value. The first response includes the first value of the TSF time.

4. 发明授权

US09762939B2 Enhanced user experience for miracast devices 有权
公开(公告)号：US09762939B2
公开(公告)日：2017-09-12
申请号：US14040051
申请日：2013-09-27
申请人： MARVELL WORLD TRADE LTD.
发明人： Jianwei Bei , Manish Kumar , Sarang Shrikrishna Wagholikar
IPC分类号： H04N7/18 , H04N21/24 , H04N21/4425 , H04N21/442 , H04N21/238 , H04N21/262 , H04N21/4363 , H04N19/46 , H04N19/895
CPC分类号： H04N21/2404 , H04N19/46 , H04N19/895 , H04N21/238 , H04N21/24 , H04N21/26216 , H04N21/43637 , H04N21/44209 , H04N21/44245 , H04N21/4425
摘要： A method is implementable in a source device operable to provide, via a wireless channel, a video stream to a sink device for display by the sink device. The method includes receiving link quality information indicative of a condition of the wireless channel and/or performance of communications between the source device and the sink device via the wireless channel. The method also includes determining a measure of network congestion based on the link quality information, and, based on the measure of network congestion, skipping one or more, but not all, video frames of a plurality of video frames in the video stream, such that the one or more video frames are not provided to the sink device, reconfiguring a video encoder operating on the plurality of video frames, such that an output bit rate of the video encoder is changed, and/or changing a video format of the video stream.

5. 发明授权

US09356974B2 Systems and methods for establishing a Wi-Fi display (WFD) session 有权
标题翻译：用于建立Wi-Fi显示（WFD）会话的系统和方法
公开(公告)号：US09356974B2
公开(公告)日：2016-05-31
申请号：US13737431
申请日：2013-01-09
申请人： Marvell World Trade Ltd.
发明人： Deepak Shahaji Nagawade , Su Khiong Yong , Sarang Shrikrishna Wagholikar
IPC分类号： G06F15/173 , H04L29/06 , H04W8/00 , H04L29/08
CPC分类号： H04L65/1069 , H04L67/16 , H04L69/32 , H04W8/005
摘要： Systems, methods, apparatus, and techniques are provided for establishing an application layer communications session over a layer 2 (L2) communications connection. In particular, a discovery request frame is transmitted from a first device. A discovery response frame is received at the first device, where the discovery response frame is transmitted from a second device in response to having received the discovery request frame. An application layer communications session is established between the first device and the second device while maintaining an existing L2 communications connection between the first device and the second device.
摘要翻译：提供了系统，方法，装置和技术，用于在层2（L2）通信连接上建立应用层通信会话。具体地，从第一设备发送发现请求帧。在第一设备处接收到发现响应帧，其中响应于已经接收到发现请求帧，从第二设备发送发现响应帧。在第一设备和第二设备之间建立应用层通信会话，同时保持第一设备和第二设备之间的现有L2通信连接。

6. 发明申请

US20130185447A1 SYSTEMS AND METHODS FOR ESTABLISHING A WI-FI DISPLAY (WFD) SESSION 有权
标题翻译：用于建立无线显示（WFD）会议的系统和方法
公开(公告)号：US20130185447A1
公开(公告)日：2013-07-18
申请号：US13737431
申请日：2013-01-09
申请人： Marvell World Trade Ltd.
发明人： Deepak Shahaji Nagawade , Su Khiong Yong , Sarang Shrikrishna Wagholikar
IPC分类号： H04L29/06
CPC分类号： H04L65/1069 , H04L67/16 , H04L69/32 , H04W8/005
摘要： Systems, methods, apparatus, and techniques are provided for establishing an application layer communications session over a layer 2 (L2) communications connection. In particular, a discovery request frame is transmitted from a first device. A discovery response frame is received at the first device, where the discovery response frame is transmitted from a second device in response to having received the discovery request frame. An application layer communications session is established between the first device and the second device while maintaining an existing L2 communications connection between the first device and the second device.
摘要翻译：提供了系统，方法，装置和技术，用于在层2（L2）通信连接上建立应用层通信会话。具体地，从第一设备发送发现请求帧。在第一设备处接收到发现响应帧，其中响应于已经接收到发现请求帧，从第二设备发送发现响应帧。在第一设备和第二设备之间建立应用层通信会话，同时维护第一设备和第二设备之间的现有L2通信连接。

7. 发明授权

US10425908B2 Methods and apparatus for enabling spontaneous location determination in a scheduled wireless communication environment 有权
公开(公告)号：US10425908B2
公开(公告)日：2019-09-24
申请号：US14799930
申请日：2015-07-15
申请人： Marvell World Trade Ltd.
发明人： Sagar A. Tamhane , Sarang Shrikrishna Wagholikar , Liwen Chu , Hongyuan Zhang , Hui-Ling Lou
IPC分类号： H04W24/00 , H04W64/00 , H04B1/40 , H04W24/10
摘要： The present disclosure describes methods and apparatus for enabling spontaneous location determination in a scheduled wireless communication environment. For example embodiments, a first wireless communication device includes a transceiver and a multiple recipient communication system. The transceiver is configured to receive from a second wireless communication device a request to participate in a location determination procedure (LDP) that is to occur at least partially during a communication period that is assigned to a third wireless communication device. The multiple recipient communication system is configured to generate a multiple recipient frame that encapsulates (i) data that is destined for the third wireless communication device and (ii) a response to the request to participate in the LDP. For other example embodiments, a multiple recipient communication system of the second wireless communication device is configured to extract the response to the request to participate in the LDP from the multiple recipient frame.

8. 发明申请

US20150257028A1 METHOD AND APPARATUS FOR ESTIMATING DISTANCE BETWEEN NETWORK DEVICES IN A WIRELESS NETWORK 有权
标题翻译：估计无线网络中网络设备之间的距离的方法和装置
公开(公告)号：US20150257028A1
公开(公告)日：2015-09-10
申请号：US14639450
申请日：2015-03-05
申请人： Marvell World Trade Ltd.
发明人： Liwen Chu , Sagar A. Tamhane , Sarang Shrikrishna Wagholikar , Hongyuan Zhang , Hui-Ling Lou
IPC分类号： H04W24/10 , H04W4/00 , H04L29/08
CPC分类号： H04W24/10 , G01S13/74 , H04L67/104 , H04W4/38 , H04W64/00 , H04W84/12
摘要： A first wireless communication device including a timing module and a fine timing measurement module. The timing module is configured to provide a first timer value. The fine timing measurement module is configured to receive, from a second wireless communication device, a first request to perform a fine timing measurement to determine a distance between the first wireless communication device and the second wireless communication device, and transmit a first response including a first time to start a burst period for performing the fine timing measurement. The first time is one of included in the request received from the second wireless communication device and based on the first timer value. The fine timing measurement module is further configured to perform the fine timing measurement in the burst period starting at the first time.
摘要翻译：一种包括定时模块和精细定时测量模块的第一无线通信设备。定时模块被配置为提供第一定时器值。精细定时测量模块被配置为从第二无线通信设备接收执行精细定时测量以确定第一无线通信设备和第二无线通信设备之间的距离的第一请求，并且发送包括首先开始进行精细定时测量的脉冲串周期。第一次是包括在从第二无线通信设备接收的请求中并且基于第一定时器值。精确定时测量模块还被配置为在从第一次开始的突发时段中执行精细定时测量。

9. 发明申请

US20180109970A1 METHOD AND APPARATUS FOR PERFORMING A FINE TIMING MEASUREMENT IN A WIRELESS NETWORK 审中-公开
公开(公告)号：US20180109970A1
公开(公告)日：2018-04-19
申请号：US15845176
申请日：2017-12-18
申请人： Marvell World Trade Ltd.
发明人： Liwen Chu , Sagar A. Tamhane , Sarang Shrikrishna Wagholikar , Hongyuan Zhang , Hui-Ling Lou
IPC分类号： H04W24/10 , H04W4/00 , H04L29/08 , G01S13/74 , H04W64/00 , H04W84/12
CPC分类号： H04W24/10 , G01S13/74 , H04L67/104 , H04W4/38 , H04W64/00 , H04W84/12
摘要： A first wireless communication device includes a timing module to provide a timing synchronization function (TSF) time. A fine timing measurement module is to transmit a first request to perform a fine timing measurement to determine a distance between the first wireless communication device and a second wireless communication device. The first request includes a first value of the TSF time at which to start a burst period of the fine timing measurement, and the first value is determined in accordance with the TSF time provided by the timing module. The fine timing measurement module is further to receive a first response as transmitted from the second wireless communication device in response to the first request and transmit a second request to start the burst period at a TSF time indicated by the first value. The first response includes the first value of the TSF time.

10. 发明申请

US20160021496A1 Methods and Apparatus for Enabling Spontaneous Location Determination in a Scheduled Wireless Communication Environment 有权
标题翻译：在计划的无线通信环境中实现自发定位的方法和装置
公开(公告)号：US20160021496A1
公开(公告)日：2016-01-21
申请号：US14799930
申请日：2015-07-15
申请人： Marvell World Trade Ltd.
发明人： Sagar A. Tamhane , Sarang Shrikrishna Wagholikar , Liwen Chu , Hongyuan Zhang , Hui-Ling Lou
IPC分类号： H04W4/02 , H04B1/40 , H04W24/10 , H04W64/00
摘要： The present disclosure describes methods and apparatus for enabling spontaneous location determination in a scheduled wireless communication environment. For example embodiments, a first wireless communication device includes a transceiver and a multiple recipient communication system. The transceiver is configured to receive from a second wireless communication device a request to participate in a location determination procedure (LDP) that is to occur at least partially during a communication period that is assigned to a third wireless communication device. The multiple recipient communication system is configured to generate a multiple recipient frame that encapsulates (i) data that is destined for the third wireless communication device and (ii) a response to the request to participate in the LDP. For other example embodiments, a multiple recipient communication system of the second wireless communication device is configured to extract the response to the request to participate in the LDP from the multiple recipient frame.
摘要翻译：本公开描述了用于在调度的无线通信环境中实现自发定位确定的方法和装置。对于示例性实施例，第一无线通信设备包括收发机和多个接收者通信系统。收发器被配置为从第二无线通信设备接收参与将在分配给第三无线通信设备的通信周期期间至少部分地发生的位置确定过程（LDP）的请求。多个接收者通信系统被配置为生成多个接收者帧，该多个接收者帧封装（i）目的地为第三无线通信设备的数据，以及（ii）对参与LDP的请求的响应。对于其他示例实施例，第二无线通信设备的多个接收者通信系统被配置为从多个接收者帧中提取对参与LDP的请求的响应。

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