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    ADAPTIVE CHANNEL CODING USING POLARIZATION
    2.
    发明申请
    ADAPTIVE CHANNEL CODING USING POLARIZATION 审中-公开
    使用极化的自适应信道编码

    公开(公告)号：WO2016112285A3

    公开(公告)日：2016-09-22

    申请号：PCT/US2016012639

    申请日：2016-01-08

    Applicant: QUALCOMM INC

    Inventor： GOELA NAVEEN ,  NALLAMPATTI EKAMBARAM VENKATESAN ,  TANDRA RAHUL ,  SORIAGA JOSEPH BINAMIRA

    IPC: H04L1/00 ,  H03M13/11 ,  H03M13/13

    CPC classification number: H04B1/123 ,  H03M13/1111 ,  H03M13/1191 ,  H03M13/13 ,  H03M13/353 ,  H04B7/0413 ,  H04L1/0009 ,  H04L1/0041 ,  H04L1/0057

    Abstract: Methods, systems, and devices are described for wireless communications at a wireless device. A wireless device may adaptively select a parity check matrix to increase the reliability of signal transmission by adapting to different channel statistics and channel types (e.g., erasure channels, channels with additive white Gaussian noise, and channels with discrete or continuous alphabets). For example, polarization codes (i.e., codes based on rows of a polarization matrix) may be used to construct parity check matrices on-the-fly given an estimation of dynamic channel conditions or diverse channel structures. The channel may be decomposed into polarized sub-channels corresponding to the polarization codes, and mutual information profiles may be determined for each of the polarized sub-channels. The parity check matrix corresponding to the polarization codes may be constructed based on the mutual information profile of all polarized sub-channels. The wireless device may encode or decode data based on the constructed parity check matrix.

    Abstract translation: 描述了无线设备上的无线通信的方法，系统和设备。 无线设备可以自适应地选择奇偶校验矩阵，以通过适应不同的信道统计和信道类型（例如，擦除信道，具有加性白高斯噪声的信道和具有离散或连续字母的信道）来提高信号传输的可靠性。 例如，鉴于动态信道条件或不同信道结构的估计，偏振码（即，基于偏振矩阵的行的代码）可用于构建奇偶校验矩阵。 信道可以被分解成对应于偏振码的极化子信道，并且可以为每个偏振子信道确定互信息曲线。 可以基于所有极化子信道的互信息轮廓来构造对应于偏振码的奇偶校验矩阵。 无线设备可以基于构造的奇偶校验矩阵对数据进行编码或解码。

    MULTI-USER MULTIPLE-INPUT MULTIPLE-OUTPUT (MU-MIMO) FEEDBACK PROTOCOL
    4.
    发明专利
    MULTI-USER MULTIPLE-INPUT MULTIPLE-OUTPUT (MU-MIMO) FEEDBACK PROTOCOL 未知

    公开(公告)号：ZA201601999B

    公开(公告)日：2020-01-29

    申请号：ZA201601999

    申请日：2016-03-23

    Applicant: QUALCOMM INC

    Inventor： VERMANI SAMEER ,  TIAN BIN ,  TANDRA RAHUL ,  MERLIN SIMONE

    Abstract: A method includes sending, from an access point of a wireless network to a first station of a plurality of stations of the wireless network, a packet including a preamble, a data portion, and trigger data that includes non-precoded, omni-direction data. The preamble precedes the data portion. The data portion precedes the trigger data. The trigger data is configured to cause the first station to perform a channel measurement responsive to receiving the packet. The access point sends beamformed data to one or more of the plurality of stations. At least one of the plurality of stations includes a mobile station configured to receive the beamformed data. The method also includes receiving, at the access point from the first station, feedback information that includes channel state information associated with the trigger data. The feedback information is received from the first station without polling individual stations of the plurality of stations.

    SYSTEMS AND METHODS FOR IMPROVEMENTS TO TRAINING FIELD DESIGN FOR INCREASED SYMBOL DURATIONS
    5.
    发明专利
    SYSTEMS AND METHODS FOR IMPROVEMENTS TO TRAINING FIELD DESIGN FOR INCREASED SYMBOL DURATIONS 未知

    公开(公告)号：ZA201607617B

    公开(公告)日：2019-04-24

    申请号：ZA201607617

    申请日：2016-11-04

    Applicant: QUALCOMM INC

    Inventor： VERMANI SAMEER ,  TIAN BIN ,  TANDRA RAHUL ,  DOAN DUNG NGOC

    Abstract: Methods, devices, and computer program products for improving training field design in packets with increased symbol durations are disclosed. In one aspect, a method of transmitting a packet on a wireless communication network is disclosed. The method includes transmitting 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 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.

    Systems and methods for improvements to training field design for increased symbol durations
    6.
    发明专利
    Systems and methods for improvements to training field design for increased symbol durations 未知

    公开(公告)号：AU2015256275B2

    公开(公告)日：2018-11-08

    申请号：AU2015256275

    申请日：2015-05-04

    Applicant: QUALCOMM INC

    Inventor： VERMANI SAMEER ,  TIAN BIN ,  TANDRA RAHUL ,  DOAN DUNG NGOC

    IPC: H04L5/00 ,  H04L25/02 ,  H04L27/26

    Abstract: Methods, devices, and computer program products for improving training field design in packets with increased symbol durations are disclosed. In one aspect, a method of transmitting a packet on a wireless communication network is disclosed. The method includes transmitting 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 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.

    ACKNOWLEDGEMENT MECHANISM IN FREQUENCY MULTIPLEXED COMMUNICATION IN DENSE WIRELESS ENVIRONMENTS
    8.
    发明专利
    ACKNOWLEDGEMENT MECHANISM IN FREQUENCY MULTIPLEXED COMMUNICATION IN DENSE WIRELESS ENVIRONMENTS 未知

    公开(公告)号：CA2908159C

    公开(公告)日：2018-09-18

    申请号：CA2908159

    申请日：2014-04-30

    Applicant: QUALCOMM INC

    Inventor： MERLIN SIMONE ,  BARRIAC GWENDOLYN DENISE ,  SAMPATH HEMANTH ,  VERMANI SAMEER ,  TIAN BIN ,  ZHOU YAN ,  TANDRA RAHUL

    IPC: H04B7/26 ,  H04L5/00

    Abstract: Systems, methods, and devices for high-efficiency wireless frequency division multiplexing are provided. A method includes exchanging, at an access point, at least one frame reserving a wireless medium with at least one of a first and second wireless device. The method further includes receiving a first communication on a first set of wireless frequencies from the first wireless device. The method further includes receiving 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 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.

    LOW RATE DATA COMMUNICATION
    9.
    发明专利
    LOW RATE DATA COMMUNICATION 未知

    公开(公告)号：CA2918837C

    公开(公告)日：2018-06-12

    申请号：CA2918837

    申请日：2014-08-26

    Applicant: QUALCOMM INC

    Inventor： VERMANI SAMEER ,  TIAN BIN ,  TANDRA RAHUL ,  SAMPATH HEMANTH ,  MERLIN SIMONE

    IPC: H04L1/04 ,  H04L1/00 ,  H04L1/08 ,  H04L1/18

    Abstract: A method includes generating a data packet at a source device for transmission via an Institute of Electrical and Electronics Engineers 802.11 wireless network. The data packet includes multiple data symbols that are duplicated in the data packet. At least a portion of a preamble of the data packet is not duplicated in the data packet. The portion of the preamble indicates that the packet is a low rate mode packet. The method also includes transmitting the data packet from the source device to a destination device via the wireless network.

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