Systems and methods for transmitting and receiving discovery messages

    公开(公告)号:US09813920B2

    公开(公告)日:2017-11-07

    申请号:US14029602

    申请日:2013-09-17

    CPC classification number: H04W24/00 H04W8/005 H04W48/08 H04W84/18

    Abstract: Methods, devices, and computer program products for transmitting and receiving discovery messages in a wireless communication device are described herein. One aspect of the subject matter described in the disclosure provides a method of discovering devices in a wireless communication system. The method includes receiving a first discovery message from a first device of a device cluster comprising a plurality of devices during a first discovery interval. The first discovery message includes information associated with the device cluster. The method further includes transmitting a discovery trigger message in response to the first discovery message. The method further includes receiving a second discovery message from at least one device of device cluster during a second discovery interval. The second discovery message is configured to advertise a plurality of services provided by the at least one device of the device cluster in response to the discovery trigger message.

    Network setup in wide channel wireless local area networks (WLANS)

    公开(公告)号:US09706412B2

    公开(公告)日:2017-07-11

    申请号:US14960903

    申请日:2015-12-07

    CPC classification number: H04W16/14 H04W16/02 H04W84/12 H04W88/08

    Abstract: Methods and apparatus for network setup in wide channel WLANs are provided. Techniques for co-existence of 20 MHz and 40 MHz networks (e.g., as defined by IEEE 802.11n) may be extended to 80 MHz and 160 MHz networks. For example, a primary channel of an existing network may be designated as the primary channel of a new network. Further, a primary channel of the existing network may not be used as a secondary channel in the new network. Intolerance operation between networks may include a first network releasing one or more channels in response to an intolerance indication received from a second network. Furthermore, in response to the intolerance indication from the second network, the first network may utilize one or more channels for communicating in the first network using a first set of access parameters. The access parameters may depend on the intolerance indication.

    Server-assisted device-to-device discovery and connection

    公开(公告)号:US09654960B2

    公开(公告)日:2017-05-16

    申请号:US14254387

    申请日:2014-04-16

    CPC classification number: H04W8/005 H04W76/14

    Abstract: A method includes receiving, at a network node, a device-to-device D2D discovery request from a first device and sending a D2D discovery response from the network node to the first device. The D2D discovery response includes information associated with a second device that is available to establish a D2D connection with the first device. The network node may perform inquiries regarding D2D connection permission from both devices. If D2D connection is permitted by both devices, the network node may facilitate the D2D scanning by sending each device's scanning information to the other device via a non-D2D link. In parallel to D2D scanning, the network node may speed up D2D link setup by distributing, via non-D2D links, link setup information to each device, where the link setup information may include device credential(s), IP address allocation(s), and/or group owner assignment.

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