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    ENHANCED SOUNDING PACKET DESIGNS
    1.
    发明申请
    ENHANCED SOUNDING PACKET DESIGNS 审中-公开

    公开(公告)号：WO2022026808A1

    公开(公告)日：2022-02-03

    申请号：PCT/US2021/043867

    申请日：2021-07-30

    Applicant: QUALCOMM INCORPORATED

    Inventor： VERMANI, Sameer ,  ASTERJADHI, Alfred ,  SUN, Yanjun ,  TIAN, Bin ,  YANG, Lin ,  CHEN, Jialing Li ,  CHERIAN, George ,  KIM, Youhan

    IPC: H04L5/00

    Abstract: This disclosure provides methods, devices and systems for generating enhanced sounding packets. Some implementations more specifically relate to sounding packet designs that support enhancements to wireless communication protocols associated with the Institute of Electrical and Electronics Engineers (IEEE) 802.11be amendment, and future generations, of the IEEE 802.11 standard. In some implementations, an enhanced null data packet announcement (NDPA) frame may be configurable to support multiple versions of the IEEE 802.11 standard. For example, the enhanced NDPA frame may be configured in accordance with a legacy or a non-legacy NDPA frame format. In some other implementations, the enhanced NDPA frame may include a subfield carrying information identifying a particular basic service set (BSS) which may be associated with one or more STA information fields. Still further, in some implementations, an Extremely High Throughput (EHT) PPDU may include signaling to indicate whether the EHT PPDU is formatted as a sounding NDP.

    TRANSMITTER-BASED LINK ADAPTATION
    2.
    发明申请
    TRANSMITTER-BASED LINK ADAPTATION 审中-公开

    公开(公告)号：WO2021101750A1

    公开(公告)日：2021-05-27

    申请号：PCT/US2020/059790

    申请日：2020-11-10

    Applicant: QUALCOMM INCORPORATED

    Inventor： YANG, Lin ,  TIAN, Bin ,  SHELLHAMMER, Stephen Jay ,  DOAN, Dung Ngoc ,  VERMANI, Sameer ,  CHEN, Jialing Li

    IPC: H04L1/00 ,  H04L1/20

    Abstract: Methods, devices and systems for link adaptation in wireless communications. Some implementations more specifically relate to transmitter-based modulation and coding scheme (MCS) selection. A transmitting device transmits a test packet over a wireless channel to a receiving device. The receiving device generates one or more signal-to-interference-plus-noise ratio (SINR) estimates for the wireless channel based on the received sounding packet. In some aspects, each SINR estimate may be associated with a particular modulation order. In other aspects, each SINR estimate may be generated based on a transmitter configuration or a receiver type to be used for subsequent communications between the transmitting device and the receiving device. The receiving device transmits feedback, including the SINR estimates, to the transmitting device. The transmitting device then selects an MCS to be used for subsequent communications with the receiving device based on the SINR estimates and associated modulation orders.

    IMPROVING DECODING PERFORMANCE
    5.
    发明申请
    IMPROVING DECODING PERFORMANCE 审中-公开

    公开(公告)号：WO2020051565A1

    公开(公告)日：2020-03-12

    申请号：PCT/US2019/050115

    申请日：2019-09-07

    Applicant: QUALCOMM INCORPORATED

    Inventor： CHEN, Jialing Li ,  DOAN, Dung Ngoc ,  TIAN, Bin ,  YANG, Lin ,  VERMANI, Sameer ,  VERMA, Lochan ,  SHELLHAMMER, Stephen Jay

    IPC: H03M13/00

    Abstract: This disclosure provides systems, methods and apparatus, including computer programs encoded on computer storage media, for low density parity check (LDPC)-based incremental redundancy (IR) hybrid automatic repeat request (HARQ) transmission processing. In one aspect, an apparatus for wireless communications is configured to generate a first packet using a LDPC encoding process. The apparatus is further configured to generate coded bits using a second LDPC encoding process if the first packet is not successfully decoded by a wireless device, generate a second packet including at least some of the coded bits generated using the second LDPC encoding process, and output the second packet for transmission.

    METHODS AND SYSTEMS FOR JOINT ACCESS POINT MIMO TRANSMISSIONS
    6.
    发明申请
    METHODS AND SYSTEMS FOR JOINT ACCESS POINT MIMO TRANSMISSIONS 审中-公开

    公开(公告)号：WO2019051338A1

    公开(公告)日：2019-03-14

    申请号：PCT/US2018/050119

    申请日：2018-09-08

    Applicant: QUALCOMM INCORPORATED

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

    IPC: H04L5/00 ,  H04B7/024

    Abstract: One aspect includes a method of establishing, via a first access point, a distributed MIMO joint transmission opportunity with one or more second access points to one or more stations. The method comprises generating, via a processor, a first message for transmission to the stations and the second access points. The first message indicates a null data packet transmission and the stations configured to receive a stream during the joint transmission opportunity. The method also comprises transmitting the first message to the second access points and the stations. The method further comprises generating, via the processor, a reference phase signal for transmission to the second access points.

    INDICATING PRESENCE OF MID-AMBLE
    8.
    发明申请
    INDICATING PRESENCE OF MID-AMBLE 审中-公开

    公开(公告)号：WO2018094365A1

    公开(公告)日：2018-05-24

    申请号：PCT/US2017/062647

    申请日：2017-11-20

    Applicant: QUALCOMM INCORPORATED

    Inventor： VERMA, Lochan ,  VERMANI, Sameer ,  TIAN, Bin

    IPC: H04L5/00 ,  H04L27/26 ,  H04L1/00

    CPC classification number: H04L69/22 ,  H04B7/0413 ,  H04L1/0025 ,  H04L5/0091 ,  H04L27/261 ,  H04L2212/00 ,  H04W84/12

    Abstract: Various aspects of the disclosure relate to communication using a data unit that includes at least one mid-amble. In some aspects, an apparatus may use mid-ambles for mobility scenarios (e.g., when the apparatus is moving outdoors). The disclosure relates in some aspects to signaling associated with the use of mid-ambles. In some aspects, an apparatus may signal whether it supports sending and/or receiving data with mid-ambles. In some aspects, an apparatus may signal whether a particular data unit includes at least one mid-amble. In some aspects, an apparatus may signal an indication of at least one mid-amble update interval. In some aspects, an apparatus may signal whether a mid-amble includes a short training field.

    BACK-TO-BACK UPLINK TRANSMISSIONS FROM MULTIPLE STATIONS
    9.
    发明申请
    BACK-TO-BACK UPLINK TRANSMISSIONS FROM MULTIPLE STATIONS 审中-公开
    来自多个站的背对背上行链路传输

    公开(公告)号：WO2018085381A1

    公开(公告)日：2018-05-11

    申请号：PCT/US2017/059510

    申请日：2017-11-01

    Applicant: QUALCOMM INCORPORATED

    Inventor： VERMA, Lochan ,  VERMANI, Sameer ,  TIAN, Bin ,  ASTERJADHI, Alfred

    IPC: H04W72/12 ,  H04W84/12

    CPC classification number: H04W72/0413 ,  H04L27/2602 ,  H04L27/2626 ,  H04W72/0446 ,  H04W72/121 ,  H04W84/12 ,  H04W88/08

    Abstract: The present disclosure describes a method and an apparatus for techniques used for back-to-back uplink transmissions from multiple stations in wireless local area networks (WLANs). An example method includes transmitting, from the AP, a control frame to the plurality of STAs, wherein the control frame contains configuration information related to a plurality of consecutive transmission slots; and receiving, at the AP, back-to-back uplink (UL) response frames from the plurality of STAs in the plurality of consecutive transmission slots. An additional example method includes receiving, at the STA, a control frame from the AP, wherein the control frame contains configuration information related to a plurality of consecutive transmission slots; and transmitting, from the STA, uplink (UL) response frames in one or more transmission slots of the plurality of consecutive transmission slots based at least on the configuration information in the control frame.

    Abstract translation: 本公开描述了用于从无线局域网（WLAN）中的多个站进行背对背上行链路传输的技术的方法和设备。 一种示例方法包括：从AP向多个STA发送控制帧，其中控制帧包含与多个连续传输时隙有关的配置信息; 以及在所述AP处接收来自所述多个连续传输时隙中的所述多个STA的背靠背上行链路（UL）响应帧。 附加示例方法包括在STA处从AP接收控制帧，其中控制帧包含与多个连续传输时隙有关的配置信息; 以及至少基于控制帧中的配置信息，从STA在多个连续传输时隙中的一个或多个传输时隙中传输上行链路（UL）响应帧。

    MULTI-SEGMENT DATA UNITS
    10.
    发明申请
    MULTI-SEGMENT DATA UNITS 审中-公开
    多分段数据单元

    公开(公告)号：WO2018085207A1

    公开(公告)日：2018-05-11

    申请号：PCT/US2017/059107

    申请日：2017-10-30

    Applicant: QUALCOMM INCORPORATED

    Inventor： VERMANI, Sameer ,  TIAN, Bin ,  VERMA, Lochan

    IPC: H04L5/00 ,  H04W84/12

    CPC classification number: H04L1/0079 ,  H04B7/0452 ,  H04L5/0023 ,  H04L5/0044 ,  H04L49/9057 ,  H04L69/161 ,  H04L69/324 ,  H04W72/042 ,  H04W84/12

    Abstract: Various aspects of the disclosure relate to communication using a data unit that includes a plurality of segments, where the different segments include information for different users. In some aspects, the data unit may be a Physical Layer Convergence Protocol (PLCP) Protocol Data Unit (PPDU) for Wi-Fi communication. In some aspects, the data unit may include an indication that all of the segments have the same length and/or resource allocation.

    Abstract translation: 本公开的各个方面涉及使用包括多个段的数据单元的通信，其中不同段包括用于不同用户的信息。 在一些方面，数据单元可以是用于Wi-Fi通信的物理层会聚协议（PLCP）协议数据单元（PPDU）。 在一些方面，数据单元可以包括所有分段具有相同长度和/或资源分配的指示。

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