System and method of identifying a lower power paging mode

    公开(公告)号:US09801157B2

    公开(公告)日:2017-10-24

    申请号:US13779313

    申请日:2013-02-27

    CPC classification number: H04W68/02 H04W84/12 Y02D70/142

    Abstract: Systems, methods, and devices for communicating data in a wireless communications network are described herein. In some aspects, a station includes a first receiver and a low power circuit including a second receiver. The second receiver may be configured to consume less power than the first receiver. The second receiver receives short paging messages from another wireless device, such as an access point. The paging messages may trigger transitions of the first receiver from inactive doze or sleep states to active awake states based on Traffic Information Maps. Once in the awake state, the first receiver receives messages. This enables the first receiver to reduce the time spent awake, thereby reducing power consumption. A system and method for identifying and managing paging modes is described herein.

    Bloom filter for service hint information in advertisements

    公开(公告)号:US09788264B2

    公开(公告)日:2017-10-10

    申请号:US14861325

    申请日:2015-09-22

    CPC classification number: H04W48/16 H04L1/0061

    Abstract: Certain aspects of the present disclosure generally relate to using bloom filter hash functions for service hint information in advertisements such as beacons and probe responses. Certain aspects provide an apparatus for wireless communications, such as an access point (AP). The apparatus generally includes a processing system configured to generate a plurality of bitmaps that indicate one or more services known by the apparatus, each bitmap being generated by applying a different set of one or more cyclic redundancy check (CRC) based hash functions to one or more service identifications (IDs) of each service, and to generate one or more frames, each frame including one of the plurality of bitmaps and an indication of the set of one or more CRC based hash functions used to generate the bitmap included in the frame, and an interface configured to output the one or more frames for transmission.

    Protocols for enabling mode 1 and mode 2 devices in TV white space networks

    公开(公告)号:US09686791B2

    公开(公告)日:2017-06-20

    申请号:US14469356

    申请日:2014-08-26

    CPC classification number: H04W72/0453 H04L5/0096 H04W16/14 H04W88/06

    Abstract: Certain aspects of the present disclosure provide techniques and apparatus for operating in a television white space (TVWS) network. One example method generally includes receiving, at an apparatus, a message with a field indicating a current version of an unused frequency spectrum map (e.g., a white space map (WSM)), the unused frequency spectrum map indicating channels usable for wireless communications; determining whether the current version of the unused frequency spectrum map is different than a previous version of the unused frequency spectrum map; and using a channel for wireless communications based on the determination. Another example method generally includes accessing a database of available channels for a current location of an apparatus via a neighboring portable or fixed enabling apparatus and enabling one or more portable dependent apparatuses for the wireless communications via one or more of the available channels.

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