Communication devices and methods with beamforming training

    公开(公告)号:US11387876B2

    公开(公告)日:2022-07-12

    申请号:US17164116

    申请日:2021-02-01

    Abstract: A communication device (1) for RF-based communication with another communication device (2) comprises an antenna circuitry (10) configured to transmit and receive RF signals and beamforming circuitry (11) configured to perform beamforming and to control the antenna circuitry in a beamforming training phase to transmit and/or receive RF signals using one or more selected directive beams. The beamforming circuitry (11) is configured to perform beamforming training by controlling the antenna circuitry i) to transmit data using at least one first directive transmit beam, wherein the other communication device (2) is configured to listen using a first directive receive beam, said data including a second transmit beam information, and ii) to subsequently listen using a predetermined second directive receive beam for a response from the other communication device (2), which is configured to transmit, if the data transmitted in step i) have been received, a response using a second directive transmit beam indicated by the second transmit beam information.

    Coding and modulation apparatus using non-uniform constellation

    公开(公告)号:US11050507B2

    公开(公告)日:2021-06-29

    申请号:US16487840

    申请日:2018-03-08

    Abstract: A coding and modulation apparatus and method are presented, particularly for use in a system according to IEEE 802.11. The apparatus comprises an encoder configured to encode input data into cell words according to an LDPC code and a modulator configured to modulate said cell words into constellation values of a non-uniform constellation and to assign bit combinations to constellation values of the used non-uniform constellation. The modulator is configured to use a non-uniform constellation and bit labeling from one of the several groups of constellations, which constellation show quadrant and octant symmetry.

    COMMUNICATION DEVICES AND METHODS WITH BEAMFORMING TRAINING

    公开(公告)号:US20210159958A1

    公开(公告)日:2021-05-27

    申请号:US17164116

    申请日:2021-02-01

    Abstract: A communication device (1) for RF-based communication with another communication device (2) comprises an antenna circuitry (10) configured to transmit and receive RF signals and beamforming circuitry (11) configured to perform beamforming and to control the antenna circuitry in a beamforming training phase to transmit and/or receive RF signals using one or more selected directive beams. The beamforming circuitry (11) is configured to perform beamforming training by controlling the antenna circuitry i) to transmit data using at least one first directive transmit beam, wherein the other communication device (2) is configured to listen using a first directive receive beam, said data including a second transmit beam information, and ii) to subsequently listen using a predetermined second directive receive beam for a response from the other communication device (2), which is configured to transmit, if the data transmitted in step i) have been received, a response using a second directive transmit beam indicated by the second transmit beam information.

    Probabilistic signal point shaping device and method

    公开(公告)号:US11277225B2

    公开(公告)日:2022-03-15

    申请号:US16635168

    申请日:2018-08-17

    Abstract: A probabilistic signal point shaping device comprises circuitry configured to map data blocks of input bits of an input bit stream onto mapping symbols, wherein said mapping symbols are distributed according to a predetermined probability distribution and represented by complex-valued signal points or non-uniformly spaced amplitude levels, assign bit labels to said mapping symbols, determine redundancy bits from the bits of said bit labels, transform said redundancy bits into a redundancy rule, and apply the redundancy rule to the mapping symbols to obtain output symbols.

    COMMUNICATION DEVICE AND METHOD
    9.
    发明申请

    公开(公告)号:US20190245607A1

    公开(公告)日:2019-08-08

    申请号:US16329766

    申请日:2017-08-11

    Abstract: A first communication device for communicating with a second communication device over a link that is utilized at the substantially same time and with the substantially same frequency resource by a pair of further communication devices. The first communication device comprises one or more antenna arrays with which beamforming can be performed, a controller configured to apply beamformers to control beamforming by the one or more antenna arrays, and circuitry configured to determine whether at least one of the beamformers satisfies an interference condition such that a level of interference leaked to the further communication devices by the first communication device is below a defined threshold, and if available, select the at least one beamformer for communicating with the second communication device.

    COMMUNICATION DEVICES AND METHODS WITH BEAMFORMING TRAINING

    公开(公告)号:US20190245600A1

    公开(公告)日:2019-08-08

    申请号:US16343409

    申请日:2017-10-27

    CPC classification number: H04B7/0617 H04B7/0417 H04B7/0619

    Abstract: A communication device for RF-based communication with another communication device. The communication device comprising antenna circuitry configured to transmit and receive RF signals and beamforming circuitry configured to perform beamforming and to control the antenna circuitry in a beamforming training phase to transmit and/or receive RF signals using one or more selected directive beams. The beamforming circuitry is configured to perform beamforming training by controlling the antenna circuitry i) to transmit data using at least one first directive transmit beam, wherein the other communication device is configured to listen using a first directive receive beam, said data including a second transmit beam information, and ii) to subsequently listen using a predetermined second directive receive beam for a response from the other communication device.

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