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    Efficient And Flexible FD-A-PPDU With Same And Mixed WiFi Generations Transmission
    4.
    发明公开
    Efficient And Flexible FD-A-PPDU With Same And Mixed WiFi Generations Transmission 审中-公开

    公开(公告)号：US20240121067A1

    公开(公告)日：2024-04-11

    申请号：US18226724

    申请日：2023-07-26

    Applicant: MediaTek Inc.

    Inventor： You-Wei Chen ,  Jianhan Liu ,  Kai Ying Lu ,  Thomas Edward Pare, JR.

    IPC: H04L5/00 ,  H04W72/0453

    CPC classification number: H04L5/0094 ,  H04W72/0453

    Abstract: Techniques pertaining to efficient and flexible frequency domain (FD) aggregated physical-layer protocol data unit (FD-A-PPDU) with the same and/or mixed WiFi generations transmission are described. An apparatus (e.g., a station (STA)) performs a wireless communication by: (i) transmitting a FD-A-PPDU or (ii) receiving the FD-A-PPDU. The wireless communication is performed in a 160 MHz, 240 MHz, 320 MHz, 480 MHz or 640 MHz bandwidth with 80 MHz being a minimum size of each of multiple PPDUs of the FD-A-PPDU. The FD-A-PPDU may be a 160 MHz, 240 MHz, 320 MHz, 480 MHz or 640 MHz FD-A-PPDU. The FD-A-PPDU may include PPDUs having a same PPDU format or different PPDU formats of different WiFi generations and utilizing a minimum size of 80 MHz non-overlapping frequency subblocks as a base building block.

    MULTI-USER MULTIPLE-INPUT MULTIPLE-OUTPUT (MU-MIMO) OPERATION AND USER SELECTION
    7.
    发明申请
    MULTI-USER MULTIPLE-INPUT MULTIPLE-OUTPUT (MU-MIMO) OPERATION AND USER SELECTION 审中-公开

    公开(公告)号：US20170317727A1

    公开(公告)日：2017-11-02

    申请号：US15499730

    申请日：2017-04-27

    Applicant: MEDIATEK INC.

    Inventor： James June-Ming Wang ,  Jianhan Liu

    IPC: H04B7/0452 ,  H04B7/06

    CPC classification number: H04B7/0452 ,  H04B7/0617 ,  H04B7/0626

    Abstract: System and method of Multi-User Multiple-Input Multiple-Output (MU-MIMO) Beamforming communication. An MU-MIMO BF training session is used to train all the responders in a user group in relation to an initiator having multiple antenna arrays. Accordingly, suitable TX-RX sector pairs are selected based on the training results, and the user group is arranged into subsets such that the initiator can transmit data to the responders in one subset simultaneously by using mutually orthogonal BF waveforms. Prior to the MU-MIMO BF training session, the initiator can select TX sectors of the TX antennas and responders for the training session based on results from a prior or preliminary SISO BF training.

    Structured Resource Allocation Signaling
    8.
    发明申请
    Structured Resource Allocation Signaling 审中-公开

    公开(公告)号：US20170093546A1

    公开(公告)日：2017-03-30

    申请号：US15278031

    申请日：2016-09-28

    Applicant: MEDIATEK INC.

    Inventor： Tianyu Wu ,  Jianhan Liu ,  Shengquan Hu ,  Thomas Edward PARE, JR.

    IPC: H04L5/00

    Abstract: Methods and apparatus are provided for structured resource allocation signaling. In one novel aspect, an 8-bit RU allocation filed is allocated in the HE-SIG-B common field for each 20 MHz. The structured resource signaling supports more than four MU-MIMO users. In one embodiment, the STA decodes the 8-bit RU allocation signal following a structured resource unit (RU) allocation rule, and determines the RU. In one embodiment, the STA decodes the first two bits of the 8-bit RU allocation signal to determine a first category of the RU allocation. The categories of the RU allocation includes a large RU size category indicating larger than or equal to 20 MHz RUs exist, a two 106-tone category indicating two 106-tone RUs exist, and a no-large-RU category indicating only smaller-than-242-tone RUs exist. The STA further decodes based on the category. A lookup table (LUT) for RU allocation is built and decoded based on a structured signaling rule.

    DIRECTION FINDING AND FTM POSITIONING IN WIRELESS LOCAL AREA NETWORKS
    9.
    发明申请
    DIRECTION FINDING AND FTM POSITIONING IN WIRELESS LOCAL AREA NETWORKS 审中-公开
    无线局域网中的方向寻找和FTM定位

    公开(公告)号：US20160366548A1

    公开(公告)日：2016-12-15

    申请号：US15121049

    申请日：2015-02-24

    Applicant: James June-Ming Wang ,  Jianhan Liu ,  Thomas Edward Pare Jr. ,  Tianyu Wu ,  Gabor Bajko ,  Yung-Ping Hsu ,  MEDIATEK INC.

    Inventor： James June-Ming Wang ,  Jianhan Liu ,  Thomas Edward Pare, JR. ,  Tianyu Wu ,  Gabor Bajko ,  Yung-Ping Hsu

    IPC: H04W4/02 ,  G01S5/02 ,  H04W24/10 ,  G01S5/06 ,  H04B17/318 ,  H04L5/00

    Abstract: A method of combined direction finding (DF) and fine timing measurement (FTM) positioning in a wireless location area network (WLAN) is proposed. A multiple antenna IEEE 802.11 transmitting device (AP) can transmit signal preamble containing multiple Long Training Field (LTF) symbols in a radio frame from multiple antennas, which allows a receiving device (STA) to resolve multiple DF sounding signals transmitted from the multiple antennas and thereby estimating angle of departure (AoD). On the other hand, the AP can estimate angle of arrival (AoA) from radio signals transmitted from the STA. When the radial resolution error of AoD or AoA positioning increases, DF positioning and fine-timing measurement (FTM) ranging can be jointly applied to reduce the radial resolution error and extends the AoD/AoA service area with positing accuracy.

    Abstract translation: 提出了一种在无线定位区域网络（WLAN）中组合方向搜索（DF）和精确定时测量（FTM）定位的方法。 多天线IEEE 802.11发射设备（AP）可以在来自多个天线的无线帧中发送包含多个长训练场（LTF）符号的信号前导码，这允许接收设备（STA）解析从多个天线发送的多个DF探测信号 从而估计出发角度（AoD）。 另一方面，AP可以从STA发送的无线电信号估计到达角（AoA）。 当AoD或AoA定位的径向分辨率误差增大时，可以共同应用DF定位和精确定时测量（FTM）测距，以减小径向分辨率误差，并以准确的精度扩展AoD / AoA服务区域。

    METHOD FOR DOWNLINK TRAFFIC PRIORITY INDICATION
    10.
    发明申请
    METHOD FOR DOWNLINK TRAFFIC PRIORITY INDICATION 审中-公开
    下行交通优先指示方法

    公开(公告)号：US20150296530A1

    公开(公告)日：2015-10-15

    申请号：US14682126

    申请日：2015-04-09

    Applicant: MEDIATEK INC.

    Inventor： Tianyu Wu ,  Jianhan Liu ,  Thomas Edward Pare, JR.

    IPC: H04W72/12 ,  H04W52/02

    CPC classification number: H04W52/0216 ,  H04W52/0229 ,  H04W72/042 ,  H04W76/28 ,  Y02D70/142

    Abstract: A method for downlink traffic priority indication is provided. A wireless device, such as an access point, receives signals destined to a first wireless station and a second wireless station. Since the first wireless station and the second wireless station are associated with the wireless device, the wireless device sends a notice signal to the first wireless station and the second wireless device to inform about the signals. The notice signal sent by the wireless device includes downlink priority information according to the signals such that the wireless stations can manage the downlink traffic accordingly.

    Abstract translation: 提供了一种用于下行链路业务优先级指示的方法。 诸如接入点的无线设备接收去往第一无线站和第二无线站的信号。 由于第一无线站和第二无线站与无线设备相关联，所以无线设备向第一无线站和第二无线设备发送通知信号以通知信号。 由无线设备发送的通知信号包括根据信号的下行链路优先级信息，使得无线站可以相应地管理下行链路业务。

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