SYSTEMS AND METHODS FOR IMPROVEMENTS TO TRAINING FIELD DESIGN FOR INCREASED SYMBOL DURATIONS

    公开(公告)号:MY174322A

    公开(公告)日:2020-04-07

    申请号:MYPI2016703523

    申请日:2015-05-04

    Applicant: QUALCOMM INC

    Abstract: Methods, devices, and computer program products for improving training field design in packets with increased symbol durations arc disclosed. In one aspect, a method of transmitting a packet on a wireless communication network is disclosed. The method includes transmitting (905) a preamble of the packet over one or more space-time-streams, the preamble including one or more training fields configured to be used for channel estimation, the one or more training fields each comprising one or more symbols of a first symbol duration. The method further includes transmitting (910) a payload of the packet over the one or more space-time-streams, the payload comprising one or more symbols of a second symbol duration, the second symbol duration greater than the first symbol duration.

    Reserva de canal en comunicación multiplexada en frecuencia en entornos inalámbricos densos

    公开(公告)号:ES2742074T3

    公开(公告)日:2020-02-13

    申请号:ES14730009

    申请日:2014-04-30

    Applicant: QUALCOMM INC

    Abstract: Un procedimiento de comunicación inalámbrica, que comprende: recibir (1110), en un primer dispositivo inalámbrico, una señal de referencia desde un punto de acceso asociado, siendo la señal de referencia indicativa de un tiempo de transmisión conjunta con al menos un segundo dispositivo inalámbrico, comprendiendo la señal de referencia uno o más campos de información de estación, una secuencia de verificación de trama, FCS, y uno o más bits de relleno entre un campo final de información de estación y la FCS; y transmitir (1120) una primera comunicación al punto de acceso basándose en la señal de referencia, utilizando la comunicación un primer subconjunto de frecuencias inalámbricas disponibles para su uso, siendo la primera comunicación concurrente con una segunda comunicación desde el segundo dispositivo inalámbrico, utilizando un segundo subconjunto de frecuencias inalámbricas, excluyendo el segundo subconjunto al primer subconjunto.

    METHODS AND SYSTEMS FOR FREQUENCY MULTIPLEXED COMMUNICATION IN DENSE WIRELESS ENVIRONMENTS

    公开(公告)号:MY171288A

    公开(公告)日:2019-10-07

    申请号:MYPI2015703626

    申请日:2014-04-30

    Applicant: QUALCOMM INC

    Abstract: Systems, methods, and devices for high-efficiency wireless frequency division multiplexing are provided. A method includes exchanging (1210), at an access point (104, 204A, 204B, 204C, 304A, 304B, 304C, 3040, 504), at least one frame reserving a wireless medium with at least one of a first and second wireless device. The method further includes receiving (1220) a first communication on a first set of wireless frequencies from the first wireless device. The method further includes receiving (1230) a second communication, at least partially concurrent with the first communication, on a second set of wireless frequencies from the second wireless device. The method further includes transmitting (1240) at least one acknowledgment of the first and second communication. The first set and the second set are mutually exclusive subsets of a set of wireless frequencies available for use by both the first and second wireless device.

    Methods and apparatus for signaling user allocations in multi-user wireless communication networks

    公开(公告)号:NZ725176A

    公开(公告)日:2018-11-30

    申请号:NZ72517615

    申请日:2015-05-06

    Applicant: QUALCOMM INC

    Abstract: With limited communication resources, it is desirable to reduce the number of bits required to convey this physical layer control information, especially as multiple types of traffic are concurrently sent from an access point to multiple terminals. In one aspect, there is provided a method of wireless communication comprising: generating, at an access point, a message for transmission over at least one channel, the message comprising: a first signal field indicative of a length of a first message after the first signal field; and a second signal field indicative of at least one channel assignment, the second signal field having a variable length, wherein the second signal field comprises one or more of a number of stations served and a list of station identifiers, and wherein the at least one channel assignment comprises a bitmap indicating a channel assignment for each station identifier in the list of station identifiers; and transmitting the message to one or more wireless devices.

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