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    METHODS AND APPARATUS FOR COMMUNICATING INFORMATION USING VISIBLE LIGHT SIGNALS AND/OR RADIO SIGNALS
    81.
    发明申请
    METHODS AND APPARATUS FOR COMMUNICATING INFORMATION USING VISIBLE LIGHT SIGNALS AND/OR RADIO SIGNALS 有权
    使用可见光信号和/或无线电信号传播信息的方法和装置

    公开(公告)号：US20140126911A1

    公开(公告)日：2014-05-08

    申请号：US13671496

    申请日：2012-11-07

    Applicant: QUALCOMM INCORPORATED

    Inventor： Aleksandar Jovicic ,  Junyi Li ,  Thomas Joseph Richardson

    IPC: H04B10/11 ,  H04J14/02

    CPC classification number: H04B10/11 ,  H04B10/1149 ,  H04B10/116 ,  H04J14/02

    Abstract: A user equipment (UE) device includes a VLC receiver including a photodiode and a radio receiver. The UE device supports a plurality of alternative technologies, communications protocols, and/or frequencies. During a first mode of operation, e.g., a discovery mode, a low reverse bias voltage value is applied to the photodiode. The low reverse bias voltage is adequate to support the recovery of small amounts of communicated information, and the power consumed by the battery of the UE device is relatively low. During discovery, information communicated includes, e.g., a light transmitter ID, an access point ID, services available at the access point, configuration information for a light receiver and/or for an auxiliary radio receiver. During a second mode of operation, e.g., a data traffic mode, the reverse bias voltage applied to the photodiode is set to a high reverse bias voltage to support higher data rate using VLC.

    Abstract translation: 用户设备（UE）设备包括具有光电二极管和无线电接收器的VLC接收器。 UE设备支持多种替代技术，通信协议和/或频率。 在第一操作模式（例如发现模式）期间，向光电二极管施加低反向偏置电压值。 低反向偏置电压足以支持少量通信信息的恢复，并且由UE设备的电池消耗的功率相对较低。 在发现期间，所传送的信息包括例如光发射机ID，接入点ID，接入点可用的业务，用于光接收机和/或辅助无线电接收机的配置信息。 在第二操作模式（例如，数据业务模式）期间，施加到光电二极管的反向偏置电压被设置为高反向偏置电压，以支持使用VLC的较高数据速率。

    METHODS AND APPARATUS FOR SYNCHRONOUSLY CODED SUBCARRIERS IN OFDMA SYSTEMS
    82.
    发明申请
    METHODS AND APPARATUS FOR SYNCHRONOUSLY CODED SUBCARRIERS IN OFDMA SYSTEMS 有权
    OFDMA系统中同步编码子程序的方法和设备

    公开(公告)号：US20140105120A1

    公开(公告)日：2014-04-17

    申请号：US13653274

    申请日：2012-10-16

    Applicant: QUALCOMM INCORPORATED

    Inventor： Jubin Jose ,  Xinzhou Wu ,  Sundar Subramanian ,  Junyi Li ,  Thomas Joseph Richardson

    IPC: H04W72/04

    CPC classification number: H04W72/042 ,  H04B7/0452 ,  H04B7/0456 ,  H04B7/0617 ,  H04B7/0619 ,  H04W28/06

    Abstract: A method, an apparatus, and a computer program product for wireless communication are provided. The apparatus may be a serving base station. The serving base station receives channel feedback from a plurality of UEs. The channel feedback is based on predetermined phase rotations used by the serving base station. The serving base station selects at least one UE of the UEs for a data transmission based on the received channel feedback. The serving base station maps at least one data stream to a set of resource blocks. The serving base station transmits the set of resource blocks to the at least one UE with a phase rotation determined based on the predetermined phase rotations.

    Abstract translation: 提供了一种用于无线通信的方法，装置和计算机程序产品。 该装置可以是服务基站。 服务基站从多个UE接收信道反馈。 信道反馈基于由服务基站使用的预定相位旋转。 服务基站基于接收的信道反馈来选择UE中的至少一个用于数据传输的UE。 服务基站将至少一个数据流映射到一组资源块。 服务基站将基于预定相位旋转确定的相位旋转的资源块集合发送给至少一个UE。

    INTERLEAVER FOR CONSTELLATION SHAPING
    85.
    发明公开
    INTERLEAVER FOR CONSTELLATION SHAPING 审中-公开

    公开(公告)号：US20240007226A1

    公开(公告)日：2024-01-04

    申请号：US18253147

    申请日：2021-01-13

    Applicant: QUALCOMM Incorporated

    Inventor： Liangming Wu ,  Kexin Xiao ,  Changlong Xu ,  Jian Li ,  Kangqi Liu ,  Ruiming Zheng ,  Ori Shental ,  Hao Xu ,  Thomas Joseph Richardson

    IPC: H04L1/00 ,  H04L27/34

    CPC classification number: H04L1/0071 ,  H04L1/0042 ,  H04L27/3411

    Abstract: Aspects of the disclosure relate to wireless communication with a waveform configured according to probabilistic constellation shaping in connection with modulation. A wireless transmission device may determine a sequence of amplitude symbols from a sequence of information bits using a distribution matcher (DM) configured for probabilistic amplitude shaping. The device may further apply error correction coding to encode an information block corresponding to at least a portion of the sequence of amplitude symbols. And the device may generate a sequence of output symbols for transmission based on the encoded information block. In various examples, the device may apply interleaving to one or more of the sequence of amplitude symbols, the information block, the encoded information block, or a combination of the sequence of amplitude symbols and the encoded information block, for the generating of the sequence of output symbols. Other aspects, embodiments, and features are also claimed and described.

    Methods and apparatus for compactly describing lifted low-density parity-check (LDPC) codes
    87.
    发明授权
    Methods and apparatus for compactly describing lifted low-density parity-check (LDPC) codes 有权

    公开(公告)号：US11239860B2

    公开(公告)日：2022-02-01

    申请号：US16655850

    申请日：2019-10-17

    Applicant: QUALCOMM Incorporated

    Inventor： Shrinivas Kudekar ,  Thomas Joseph Richardson

    IPC: H03M13/11 ,  H03M13/00 ,  H03M13/03 ,  H04L1/18 ,  H04L1/00

    Abstract: Certain aspects of the present disclosure generally relate to techniques for compactly describing lifted low-density parity-check (LDPC) codes. A method by a transmitting device generally includes selecting a first lifting size value and a first set of lifting values; generating a first lifted LDPC code by applying the first set of lifting values to interconnect edges in copies of a parity check matrix (PCM) having a first number of variable nodes and a second number of check nodes; determining a second set of lifting values for generating a second lifted LDPC code for a second lifting size value based on the first lifted PCM and the first set of lifting values; encoding a set of information bits based the first lifted LDPC code or the second lifted LDPC code to produce a code word; and transmitting the code word.

    High performance, flexible, and compact low-density parity-check (LDPC) code
    88.
    发明授权
    High performance, flexible, and compact low-density parity-check (LDPC) code 有权

    公开(公告)号：US11032026B2

    公开(公告)日：2021-06-08

    申请号：US16289113

    申请日：2019-02-28

    Applicant: QUALCOMM Incorporated

    Inventor： Thomas Joseph Richardson ,  Shrinivas Kudekar

    IPC: H04L1/00 ,  H04L1/18 ,  H03M13/03 ,  H03M13/11 ,  H03M13/00

    Abstract: Certain aspects of the present disclosure generally relate to techniques for puncturing of structured low-density parity-check (LDPC) codes. Certain aspects of the present disclosure generally relate to methods and apparatus for a high-performance, flexible, and compact LDPC code. Certain aspects can enable LDPC code designs to support large ranges of rates, blocklengths, and granularity, while being capable of fine incremental redundancy hybrid automatic repeat request (IR-HARQ) extension while maintaining good floor performance, a high-level of parallelism to deliver high throughout performance, and a low description complexity.

    Reliable channel assisted hybrid-arq
    89.
    发明授权
    Reliable channel assisted hybrid-arq 有权

    公开(公告)号：US11005635B2

    公开(公告)日：2021-05-11

    申请号：US14861604

    申请日：2015-09-22

    Applicant: QUALCOMM Incorporated

    Inventor： Shrinivas Kudekar ,  Thomas Joseph Richardson ,  Xinzhou Wu ,  Junyi Li

    IPC: H04L5/00 ,  H04L1/18 ,  H04L1/00

    Abstract: Methods, systems, and devices are described for wireless communication. A transmitter may receive feedback that a station failed to decode a packet sent over a first channel, and the transmitter may determine to re-send the packet or to send parity bits over the first channel or over a second channel to assist in decoding the failed packet. The first channel may be in an unlicensed radio frequency spectrum, and the second channel may be in a licensed radio frequency spectrum and may have a higher reliability level compared to the first channel. The transmitter may determine a first channel degradation level, which may be based on a signal-to-noise ratio received from the station, and may determine an amount of parity bits to send based on the degradation. The transmitter may determine the reliability level of each channel, which may be based on a channel quality indicator.

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