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    INTERPRETATION OF RESERVED STATES IN WIRELESS PACKETS
    91.
    发明申请
    INTERPRETATION OF RESERVED STATES IN WIRELESS PACKETS 有权

    公开(公告)号：US20220140942A1

    公开(公告)日：2022-05-05

    申请号：US17513849

    申请日：2021-10-28

    Applicant: QUALCOMM Incorporated

    Inventor： Sameer VERMANI ,  Bin TIAN ,  Youhan KIM ,  Jialing Li CHEN

    IPC: H04L1/00

    Abstract: This disclosure provides methods, devices and systems for interpreting reserved bits and values associated with different releases of a wireless communication protocol. In some implementations, a wireless communication device may determine whether to terminate or continue reception of a physical layer protocol convergence protocol (PLCP) protocol data unit (PPDU) if it detects a reserved bit in the physical layer preamble set to an unsupported value (such as a value different than what is defined by a version or release of the wireless communication protocol supported by the wireless communication device). In some other implementations, a wireless communication device may determine whether to terminate or continue reception of a PPDU if it detects a field in the physical layer preamble set to a reserved value (such as defined by a version or release of the wireless communication protocol supported by the wireless communication device).

    ENHANCED TRIGGER FRAME
    92.
    发明申请
    ENHANCED TRIGGER FRAME 有权

    公开(公告)号：US20220030572A1

    公开(公告)日：2022-01-27

    申请号：US17382585

    申请日：2021-07-22

    Applicant: QUALCOMM Incorporated

    Inventor： Stephen Jay SHELLHAMMER ,  Sameer VERMANI ,  Jialing Li CHEN ,  Bin TIAN ,  Alfred ASTERJADHI ,  Yanjun SUN

    IPC: H04W72/04 ,  H04L29/06

    Abstract: This disclosure provides methods, devices and systems for generating enhanced trigger frames. Some implementations more specifically relate to trigger frame designs that support gains in data throughput achievable in accordance with the IEEE 802.11be amendment, and future generations, of the IEEE 802.11 standard. In some implementations, an enhanced trigger frame may be used to solicit a non-legacy trigger-based (TB) physical layer protocol convergence protocol (PLCP) protocol data unit (PPDU) from one or more wireless stations (STAs). In some implementations, the enhanced trigger frame may be configurable to support multiple versions of the IEEE 802.11 standard. For example, an enhanced trigger frame may be configured in accordance with a legacy trigger frame format or a non-legacy trigger frame format. Thus, when configured in accordance with the legacy trigger frame format, the enhanced trigger frame can also be used to a legacy TB PPDU from one or more STAs.

    SECURE LONG TRAINING FIELD (LTF)
    93.
    发明申请
    SECURE LONG TRAINING FIELD (LTF) 有权

    公开(公告)号：US20210344541A1

    公开(公告)日：2021-11-04

    申请号：US17244500

    申请日：2021-04-29

    Applicant: QUALCOMM Incorporated

    Inventor： Stephen Jay SHELLHAMMER ,  Bin TIAN ,  Alireza RAISSINIA ,  Youhan KIM

    IPC: H04L27/26 ,  H04L5/00

    Abstract: This disclosure provides methods, devices and systems for generating a secure long training field (LTF). In some implementations, the secure LTF may include a randomized bit sequence that is difficult, if not impossible, to replicate by any device other than the transmitting device and the intended receiving device. For example, the transmitting device may use a block cipher or stream cipher to generate a pseudorandom bit sequence and may select a subset of bits of the pseudorandom bit sequence to be mapped to a sequence of modulation symbols representing an LTF symbol of the secure LTF. More specifically, each of the modulation symbols is mapped to a respective one of a number of subcarriers spanning a bandwidth of the secure LTF. The transmitting device may further transmit a physical layer convergence protocol (PLCP) protocol data unit (PPDU) that includes the secure LTF to the receiving device.

    BOUNDARY IDENTIFICATION FOR PROBABILISTIC AMPLITUDE SHAPING
    94.
    发明申请
    BOUNDARY IDENTIFICATION FOR PROBABILISTIC AMPLITUDE SHAPING 有权

    公开(公告)号：US20210160843A1

    公开(公告)日：2021-05-27

    申请号：US17099343

    申请日：2020-11-16

    Applicant: QUALCOMM Incorporated

    Inventor： Lin YANG ,  Bin TIAN ,  Dung Ngoc DOAN

    IPC: H04W72/04 ,  H04J11/00

    Abstract: This disclosure provides methods, devices and systems for amplitude shaping encoding, and specifically, for indicating boundaries in bitstreams encoded using amplitude shaping encoding. In some aspects, a transmitting device may insert, into an bitstream to indicate a boundary, a sequence of amplitude bits not associated with any patterns of bit values in a lookup table used for the encoding. In some other aspects, a transmitting device may monitor a length of the amplitude bits in a bitstream during the encoding and stop the encoding on information bits at an end of a current data unit responsive to the length reaching a threshold. In some other aspects, a transmitting device may monitor the length of the information bits and, for each data unit, determine whether a boundary is or would be reached. Responsive to determining that a boundary is or would be reached, the transmitting device may not include, before the boundary, any amplitude bits generated based on the information bits in the data unit, and instead add padding bits after a last amplitude bit before the boundary.

    TECHNIQUES FOR PREAMBLE PUNCTURING
    96.
    发明申请
    TECHNIQUES FOR PREAMBLE PUNCTURING 审中-公开

    公开(公告)号：US20190141570A1

    公开(公告)日：2019-05-09

    申请号：US16173481

    申请日：2018-10-29

    Applicant: QUALCOMM Incorporated

    Inventor： Lochan VERMA ,  Bin TIAN ,  Lin YANG ,  Jialing Li CHEN ,  Sameer VERMANI ,  Youhan KIM

    IPC: H04W28/06

    Abstract: The present disclosure provides techniques for preamble puncturing in wireless local area networks (WLANs). In one implementation, an access point (AP) can identify, within a channel width, one or more bandwidth regions associated with incumbent technologies. The AP can broadcast or advertise, to a basic service set (BSS) initiated or started by the AP, a preamble puncture pattern in one or more management frames, the preamble puncture pattern being based on the bandwidth regions associated with incumbent technologies. In another implementation, an AP can identify a single user (SU) preamble puncture transmission, and can signal in a common portion of a SIG-B field of a multi-user (MU) PPDU format that a resource unit (RU) size is assigned to a same user to indicate the SU preamble puncture transmission. Although these techniques may be used in any frequency band, typical frequency bands may include, but are not limited to, a 2.4 GHz band, a 5 GHz band, and/or a 6 GHz band.

    PILOT SEQUENCES IN DATA STREAMS
    97.
    发明申请
    PILOT SEQUENCES IN DATA STREAMS 审中-公开

    公开(公告)号：US20190069301A1

    公开(公告)日：2019-02-28

    申请号：US16153664

    申请日：2018-10-05

    Applicant: QUALCOMM Incorporated

    Inventor： Lin YANG ,  Bin TIAN ,  Jialing Li CHEN

    IPC: H04W72/04 ,  H04L5/00 ,  H04L27/26 ,  H04L12/26

    Abstract: A method, an apparatus, and a computer-readable medium for wireless communication are provided. In one aspect, an apparatus is configured to determine a plurality of resource units for communication. The apparatus is configured to generate a set of pilot signals in at least one resource unit of the plurality of resource units. The apparatus is configured to transmit the generated set of pilot signals in the at least one resource unit of the plurality of resource units.

    MEDIUM ACCESS CONTROL (MAC) HEADER COMPRESSION
    100.
    发明申请
    MEDIUM ACCESS CONTROL (MAC) HEADER COMPRESSION 审中-公开

    公开(公告)号：US20180049061A1

    公开(公告)日：2018-02-15

    申请号：US15725659

    申请日：2017-10-05

    Applicant: QUALCOMM Incorporated

    Inventor： Alfred ASTERJADHI ,  Maarten Menzo WENTINK ,  Simone MERLIN ,  George CHERIAN ,  Bin TIAN

    IPC: H04W28/06 ,  H04L29/06

    CPC classification number: H04W28/065 ,  H04L69/04 ,  H04W28/06

    Abstract: Certain aspects of the present disclosure provide an apparatus for wireless communications. The apparatus generally includes a processing system configured to generate a data frame based on a compressed data frame format and to include control information in at least one field of the data frame, wherein the at least one field is not specified in the compressed data frame format and an interface for outputting the data frame for transmission. Another example apparatus generally includes a processing system configured to generate a frame having a first one or more bits indicating whether the frame has a compressed format and a second one or more bits indicating which of one or more fields are absent if the frame has a compressed format and an interface for outputting the frame for transmission.

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