公开(公告)号：US11350142B2

公开(公告)日：2022-05-31

申请号：US16353400

申请日：2019-03-14

申请人： GAINSPAN CORPORATION

发明人： Vishal Batra ,  Pankaj Vyas

IPC分类号： H04L47/11 ,  H04N21/2343 ,  H04L47/25 ,  H04N21/24 ,  H04L47/263 ,  H04N19/166 ,  H04N21/238 ,  H04W28/02

摘要： A device, system and method for intelligently dropping frames in a congested wireless network. Video frames from a video encoder may be received and queued in an ordered sequence of outgoing video frames in a transmission queue to be transmitted as data packets by a wireless communication circuit. When network congestion is detected, a relative contextual importance level of an incoming frame received from the video input channel may be compared relative to at least one frame in the transmission queue. The compared frame that has a lower relative contextual importance level may be dropped or omitted from the transmission queue, thereby transmitting data packets of the frames in the transmission queue without the dropped or omitted frames.

公开(公告)号：US10856202B2

公开(公告)日：2020-12-01

申请号：US14797195

申请日：2015-07-13

申请人： GainSpan Corporation

发明人： Sibasis Purohit

IPC分类号： H04W40/02 ,  H04W24/06 ,  H04W40/20

摘要： A wireless device receives a packet from a sender node according to a routing protocol and determines a position information of the sender node. The wireless device calculates a distance to the sender node from the wireless device and discards the packet if the distance is outside of a range. Otherwise, the packet is processed according to the routing protocol. As a result, the approach may be suited to testing type environments where the wireless devices are proximately placed and yet one may wish to simulate real-world distances between the wireless devices.

公开(公告)号：US20190268102A1

公开(公告)日：2019-08-29

申请号：US15991799

申请日：2018-05-29

申请人： GainSpan Corporation

发明人： Indudharswamy G. Hiremath

IPC分类号： H04L1/18 ,  H04N21/4363 ,  H04L29/06

摘要： A device, system and method are provided for wirelessly transmitting a sequence of video packets containing video data for one or more video frames. An importance metric associated with a priority of transmitting each individual packet in the sequence of video packets is independently computed, a retry limit or packet lifetime for each individual video packet in the sequence of video packets is independently determined based on the importance metric, and each video packet in the sequence of video packets is attempted to be transmitted. If the transmission attempt for an individual video packet in the sequence fails, the transmission attempt is repeated for up to the retry limit or the packet lifetime independently determined for the individual packet or until a successful transmission is achieved, whichever occurs first.

公开(公告)号：US10103866B2

公开(公告)日：2018-10-16

申请号：US15065888

申请日：2016-03-10

申请人： GainSpan Corporation

发明人： Pankaj Vyas ,  Sibasis Purohit

IPC分类号： H04L5/22 ,  H04W4/80 ,  H04W8/18 ,  H04W84/12

摘要： A wireless device operates in a first wireless network using a first wireless protocol to receive a set of provisioning parameters for joining a second wireless network that uses a second wireless protocol. The first wireless network may be based on a shared wireless broadcast medium. The wireless device then joins the second wireless network using the set of provisioning parameters. In an embodiment the first wireless protocol is according to IEEE 802.11 specifications, while the second wireless protocol is according to IEEE 802.1.5.4 specifications.

公开(公告)号：US20170332318A1

公开(公告)日：2017-11-16

申请号：US15153756

申请日：2016-05-13

申请人： GainSpan Corporation

发明人： Pankaj Vyas ,  Vishal Batra

IPC分类号： H04W48/20 ,  H04W72/04 ,  H04W48/10 ,  H04W76/02 ,  H04W76/06 ,  H04W88/08 ,  H04W84/12

CPC分类号： H04W48/20 ,  H04W12/06 ,  H04W48/10 ,  H04W76/19 ,  H04W76/25 ,  H04W76/38 ,  H04W84/12

摘要： A wireless station (STA) of a wireless network operates to estimate intervals at which to transmit keep-alive messages to an access point (AP) with which the STA is associated. The STA receives a de-authentication frame from the AP. The de-authentication frame indicates that the AP has disassociated the STA due to inactivity. The STA determines a keep-alive interval based on one or more de-authenticated messages, including the de-authentication frame. The STA transmits keep-alive messages according to the determined keep-alive interval.

公开(公告)号：US09491795B2

公开(公告)日：2016-11-08

申请号：US13719255

申请日：2012-12-19

申请人： GainSpan Corporation

发明人： Pankaj Vyas ,  Vishal Batra ,  Sibasis Purohit

IPC分类号： H04W84/12 ,  H04W40/34 ,  H04L12/721

CPC分类号： H04W84/12 ,  H04L45/32 ,  H04L45/34 ,  H04W40/34

摘要： A wireless station in a WLAN generates a first set of data elements for sending to a final destination. The wireless station forms a first Internet Protocol (IP) packet with a header portion and a payload portion. The header portion specifies an IP address of a neighbor access point (AP) as the next hop destination. The payload portion of the IP packet includes an IP address of the final destination to indicate that the data elements are to be delivered to the final destination. The wireless station transmits the IP packet to the neighbor AP according to the IP address of the neighbor AP. Extended connectivity based on wireless paths between stations of a wireless local area network (WLAN) is thus provided.

摘要翻译： WLAN中的无线站产生用于发送到最终目的地的第一组数据元素。 无线站形成具有报头部分和有效载荷部分的第一互联网协议（IP）分组。 报头部分指定邻居接入点（AP）的IP地址作为下一跳目的地。 IP分组的有效载荷部分包括最终目的地的IP地址，以指示数据元素将被传送到最终目的地。 无线站根据邻居AP的IP地址向邻居AP发送IP报文。 因此提供了基于无线局域网（WLAN）的站之间的无线路径的扩展连接。

公开(公告)号：US20160242100A1

公开(公告)日：2016-08-18

申请号：US14663332

申请日：2015-03-19

申请人： GainSpan Corporation

发明人： Lewis E. ADAMS, III ,  Alan J. HERRING ,  Pankanj VYAS

IPC分类号： H04W40/34 ,  H04L12/703 ,  H04W4/00

CPC分类号： H04W40/34 ,  H04L45/28 ,  H04W4/80 ,  H04W76/15 ,  H04W84/12 ,  H04W88/06

摘要： A system includes a transmitter, a device and a wireless network. The device is coupled to the transmitter by a set of wireless communication protocols. The wireless network is coupled to the device by a set of wireless communication export protocols. The wireless communication protocols and the wireless communication export protocols include 802.11 WiFi, WiFi, ZigBee and Bluetooth.

摘要翻译： 系统包括发射机，设备和无线网络。 该设备通过一组无线通信协议耦合到发射机。 无线网络通过一组无线通信导出协议耦合到设备。 无线通信协议和无线通信出口协议包括802.11 WiFi，WiFi，ZigBee和蓝牙。

公开(公告)号：US20160219414A1

公开(公告)日：2016-07-28

申请号：US14602278

申请日：2015-01-22

申请人： GainSpan Corporation

发明人： Sibasis Purohit

IPC分类号： H04W4/06 ,  H04L12/741

CPC分类号： H04W4/06 ,  H04L12/189 ,  H04L45/16 ,  H04L45/54 ,  H04L45/74

摘要： A router node according to an aspect of the present disclosure maintains multicast information indicating child nodes registered for respective multicasts, while operating in a non-storing mode along with other router nodes of a wireless network for processing unicast packets. Upon receiving a layer-3 multicast packet, the router node examines the multicast information to identify a set of child nodes registered for the corresponding multicast. The router node thereafter unicasts, at L2-level, the layer-3 multicast packet to each child node of the set of child nodes. In an embodiment, the router node participates in a routing protocol (e.g., RPL) to form a hierarchy of nodes constituting the wireless network, with the hierarchy containing a root node and a set of end devices as leaf nodes.

摘要翻译： 根据本公开的一个方面的路由器节点维持指示针对各个多播的子节点的多播信息，同时与非无线网络的其他路由器节点一起以非存储模式操作，以处理单播分组。 在接收到第3层组播数据包后，路由器节点检查组播信息，以识别为相应组播注册的一组子节点。 然后，路由器节点在L2级别将第3层组播分组单播到该组子节点的每个子节点。 在一个实施例中，路由器节点参与路由协议（例如，RPL）以形成构成无线网络的节点的层次结构，其中层次结构包含根节点和一组终端设备作为叶节点。

公开(公告)号：US20160112955A1

公开(公告)日：2016-04-21

申请号：US14519063

申请日：2014-10-20

申请人： GainSpan Corporation

发明人： Stephen H. Grau

IPC分类号： H04W52/02 ,  H04W24/10

CPC分类号： H04W52/0235 ,  H04W24/10 ,  H04W52/0216 ,  H04W52/0229 ,  Y02D70/1262 ,  Y02D70/142 ,  Y02D70/144 ,  Y02D70/146 ,  Y02D70/26

摘要： An improved communication protocol between an access point and a wireless station is disclosed for ultra low-power wireless communications. The communication protocol is reduced from nine frames to seven frames by eliminating the last two packets in the sequence, allowing the wireless station to go to sleep (enter a low power state) when it sends the response rather than lingering before sleeping. The improved communication protocol allows the access point to enter its low power state following receipt of the acknowledgement from the wireless station.

摘要翻译： 公开了用于超低功率无线通信的接入点和无线站之间的改进的通信协议。 通过消除序列中的最后两个数据包，通信协议从九个帧减少到七个帧，允许无线站在发送响应而不是在睡眠之前徘徊，进入睡眠状态（进入低功率状态）。 改进的通信协议允许接收点在从无线站接收到确认之后进入其低功率状态。

公开(公告)号：US20160112311A1

公开(公告)日：2016-04-21

申请号：US14517949

申请日：2014-10-20

申请人： GainSpan Corporation

发明人： Pankaj Vyas ,  Vishal Batra

IPC分类号： H04L12/741 ,  H04W40/02

CPC分类号： H04L45/74 ,  H04W40/02

摘要： A wireless node of a wireless network maintains link information for a set of layer-2 addresses, each of the layer-2 addresses corresponding to a medium access control (MAC) address of a corresponding device that transmits packets on the wireless network. The link information indicates whether the corresponding device is in an uplink direction or a downlink direction with respect to the wireless node. The wireless node receives a layer-2 packet in one of the uplink direction and downlink directions, the layer-2 packet containing a layer-2 address specifying a destination system, with no layer-2 address in the layer-2 packet indicating that the packet is destined to the wireless node. The wireless node forwards the layer-2 packet to a next wireless device in one of the uplink direction and downlink direction.

摘要翻译： 无线网络的无线节点维护一组二层地址的链路信息，每个二层地址对应于在无线网络上发送分组的对应设备的介质访问控制（MAC）地址。 链路信息指示相对于无线节点的相应设备是处于上行链路方向还是下行链路方向。 无线节点在上行方向和下行方向之一接收二层分组，二层分组包含指定目的地系统的二层地址，第二层分组中没有二层地址，表示该二层分组 数据包注定到无线节点。 无线节点在上行链路方向和下行链路方向之一中将第二层分组转发到下一个无线设备。