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    DIRECTION FINDING AND FTM POSITIONING IN WIRELESS LOCAL AREA NETWORKS
    2.
    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

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

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

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

    摘要： 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.

    摘要翻译： 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。

    SUBCHANNEL FEEDBACK FOR OFDMA SYSTEMS
    4.
    发明申请
    SUBCHANNEL FEEDBACK FOR OFDMA SYSTEMS 审中-公开
    OFDMA系统的子信道反馈

    公开(公告)号：US20170063512A1

    公开(公告)日：2017-03-02

    申请号：US15123247

    申请日：2015-03-04

    申请人： Tianyu Wu ,  Jianhan Liu ,  KIRAN ULN ,  Thomas Edward Pare, JR. ,  MEDIATEK INC.

    发明人： Tianyu Wu ,  Jianhan Liu ,  KIRAN ULN ,  Thomas Edward Pare, JR.

    IPC分类号： H04L5/00 ,  H04W72/08 ,  H04W72/04 ,  H04B7/04

    CPC分类号： H04L5/0057 ,  H04B7/0417 ,  H04B7/0452 ,  H04B7/0623 ,  H04B7/0626 ,  H04B7/0632 ,  H04B17/24 ,  H04B17/336 ,  H04L1/1671 ,  H04L1/1685 ,  H04L5/0023 ,  H04L5/0048 ,  H04L25/0204 ,  H04W72/0446 ,  H04W72/082

    摘要： A method of sub-channel feedback in OFDMA systems is provided. A wireless receiving device (STA) receives a radio signal from a transmitting device (AP) over a wide channel in an OFDMA system. The radio signal is transmitted over multiple sub-channels of the wide channel. The STA estimates channel quality information based on the received radio signal for each sub-channel. The STA then sends feedback information to the transmitting device. The feedback information comprises the estimated channel quality information for a selected subset of sub-channels from the wide channel based on a predefined rule. In one embodiment, the feedback information is embedded within an ACK/BA frame or is carried in a frame immediately subsequent to the ACK/BA frame.

    摘要翻译： 提供OFDMA系统中子信道反馈的方法。 无线接收设备（STA）通过OFDMA系统中的宽信道从发射设备（AP）接收无线电信号。 无线电信号通过宽信道的多个子信道发送。 STA基于每个子信道的接收到的无线电信号来估计信道质量信息。 然后，STA向发送设备发送反馈信息。 基于预定义规则，反馈信息包括来自宽信道的子信道的选定子集的估计信道质量信息。 在一个实施例中，反馈信息被嵌入到ACK / BA帧内，或者紧接在ACK / BA帧之后的帧中被携带。

    METHOD FOR IDENTIFYING SOURCE BSS IN WLAN
    5.
    发明申请
    METHOD FOR IDENTIFYING SOURCE BSS IN WLAN 审中-公开
    WLAN中识别源BSS的方法

    公开(公告)号：US20160353275A1

    公开(公告)日：2016-12-01

    申请号：US15117448

    申请日：2015-02-10

    申请人： Jianhan Liu ,  Tianyu Wu ,  Thomas Edward Pare Jr. ,  MEDIATEK INC.

    发明人： Jianhan Liu ,  Tianyu Wu ,  Thomas Edward Pare Jr.

    IPC分类号： H04W8/26 ,  H04L12/823 ,  H04W48/16

    CPC分类号： H04W8/26 ,  H04L47/32 ,  H04W16/10 ,  H04W48/16 ,  H04W84/12

    摘要： A method for identifying source BSS in WLAN is proposed. A high efficiency (HE) access point (AP) sends a packet containing a basic service set (BSS) color to a HE station. The HE AP also sends a packet containing an assigned association identification (AID) to a very high throughput (VHT) station. The assigned AID comprises at least part of the BSS color information. The VHT station therefore sends a packet containing the at least part of the BSS color information such that any AP or station that receives the packet can determine the BSS the VHT station is in.

    摘要翻译： 提出了一种识别WLAN中源BSS的方法。 高效（HE）接入点（AP）向HE站发送包含基本服务集（BSS）颜色的分组。 HE AP还将包含分配的关联标识（AID）的分组发送到非常高的吞吐量（VHT）站。 分配的AID包括BSS颜色信息的至少一部分。 因此，VHT站发送包含BSS颜色信息的至少一部分的分组，使得接收分组的任何AP或站可以确定VHT站所在的BSS。

    METHOD AND SYSTEM FOR SENSING DISCONTIGUOUS CHANNELS IN A WIRELESS NETWORK
    8.
    发明申请
    METHOD AND SYSTEM FOR SENSING DISCONTIGUOUS CHANNELS IN A WIRELESS NETWORK 有权
    用于在无线网络中感测不连续通道的方法和系统

    公开(公告)号：US20080293410A1

    公开(公告)日：2008-11-27

    申请号：US11753675

    申请日：2007-05-25

    申请人： Wing Chau Chan ,  Kwok Shum Au ,  Rui Wang ,  Tianyu Wu ,  Kin Nang Lau ,  Shu Kwan Cheng ,  Ross David Murch ,  Wai Ho Mow

    发明人： Wing Chau Chan ,  Kwok Shum Au ,  Rui Wang ,  Tianyu Wu ,  Kin Nang Lau ,  Shu Kwan Cheng ,  Ross David Murch ,  Wai Ho Mow

    IPC分类号： H04Q7/20

    CPC分类号： H04W24/08

    摘要： A method for sensing channel availability in a wireless network includes receiving a measurement request message which includes a channel interval list. A first channel interval in the list includes information associated with a first starting channel number, a first number of channels, and first linkage information of the channel interval list. The method includes processing information associated with the message, generating a first list of contiguous channels, and performing at least first channel measurement to determine a first channel availability for each of the first list of contiguous channels. The method also includes determining whether the channel interval list further includes a second channel interval that needs to be processed based on at least first linkage information, and if needed, generating a second list of contiguous channels and performing at least second channel measurement to determine a second channel availability for each of the second list of contiguous channels.

    摘要翻译： 用于感测无线网络中的信道可用性的方法包括：接收包括信道间隔列表的测量请求消息。 列表中的第一信道间隔包括与第一起始信道号，第一信道数和信道间隔列表的第一链接信息相关联的信息。 该方法包括处理与消息相关联的信息，产生连续信道的第一列表，以及执行至少第一信道测量以确定第一连续信道列表中的每一个的第一信道可用性。 该方法还包括确定信道间隔列表是否还包括基于至少第一链接信息需要处理的第二信道间隔，并且如果需要，生成连续信道的第二列表并执行至少第二信道测量以确定 连续通道的第二列表中的每一个的第二通道可用性。

    Method and system for sensing discontiguous channels in a wireless network
    9.
    发明授权
    Method and system for sensing discontiguous channels in a wireless network 有权
    用于检测无线网络中不连续通道的方法和系统

    公开(公告)号：US08081972B2

    公开(公告)日：2011-12-20

    申请号：US11753675

    申请日：2007-05-25

    申请人： Wing Chau Chan ,  Kwok Shum Au ,  Rui Wang ,  Tianyu Wu ,  Kin Nang Lau ,  Shu Kwan Cheng ,  Ross David Murch ,  Wai Ho Mow

    发明人： Wing Chau Chan ,  Kwok Shum Au ,  Rui Wang ,  Tianyu Wu ,  Kin Nang Lau ,  Shu Kwan Cheng ,  Ross David Murch ,  Wai Ho Mow

    IPC分类号： H04W4/00 ,  H04B7/00 ,  H04B15/00

    CPC分类号： H04W24/08

    摘要： A method for sensing channel availability in a wireless network includes receiving a measurement request message which includes a channel interval list. A first channel interval in the list includes information associated with a first starting channel number, a first number of channels, and first linkage information of the channel interval list. The method includes processing information associated with the message, generating a first list of contiguous channels, and performing at least first channel measurement to determine a first channel availability for each of the first list of contiguous channels. The method also includes determining whether the channel interval list further includes a second channel interval that needs to be processed based on at least first linkage information, and if needed, generating a second list of contiguous channels and performing at least second channel measurement to determine a second channel availability for each of the second list of contiguous channels.

    摘要翻译： 用于感测无线网络中的信道可用性的方法包括：接收包括信道间隔列表的测量请求消息。 列表中的第一信道间隔包括与第一起始信道号，第一信道数和信道间隔列表的第一链接信息相关联的信息。 该方法包括处理与消息相关联的信息，产生连续信道的第一列表，以及执行至少第一信道测量以确定第一连续信道列表中的每一个的第一信道可用性。 该方法还包括确定信道间隔列表是否还包括基于至少第一链接信息需要处理的第二信道间隔，并且如果需要，生成连续信道的第二列表并执行至少第二信道测量以确定 连续通道的第二列表中的每一个的第二通道可用性。

    ROBUST RATE, POWER AND PRECODER ADAPTATION FOR SLOW FADING MIMO CHANNELS WITH NOISY LIMITED FEEDBACK
    10.
    发明申请
    ROBUST RATE, POWER AND PRECODER ADAPTATION FOR SLOW FADING MIMO CHANNELS WITH NOISY LIMITED FEEDBACK 审中-公开
    具有噪声有限反馈的慢速衰减MIMO通道的稳定速率，功率和预编码器适配

    公开(公告)号：US20080219369A1

    公开(公告)日：2008-09-11

    申请号：US12042073

    申请日：2008-03-04

    申请人： Tianyu Wu ,  Vincent Kin Nang Lau

    发明人： Tianyu Wu ,  Vincent Kin Nang Lau

    IPC分类号： H04L27/28

    CPC分类号： H04L1/0002 ,  H04B7/0482 ,  H04B7/0639 ,  H04L1/0687 ,  H04L25/03343 ,  Y02D70/1224 ,  Y02D70/1242 ,  Y02D70/142 ,  Y02D70/444

    摘要： System and methodologies are provided herein for rate, power and precoder adaptation for slow fading MIMO communication channels with noisy limited feedback. To optimize a rate of successful information delivery from a wireless transmitter to a wireless receiver and to provide robustness to channel noise, a joint design and optimization technique is utilized to provide optimal power, rate, and precoding adaptation policies for use by a wireless transmitter and an optimal feedback scheme and index assignment mapping for use by a wireless receiver. Additionally, various optimization and design techniques described herein are performed using a low-complexity online adaptation coupled with an offline optimization design.

    摘要翻译： 本文提供了用于具有噪声有限反馈的慢衰落MIMO通信信道的速率，功率和预编码器适配的系统和方法。 为了优化从无线发射机到无线接收机的成功的信息传递速率并且提供对信道噪声的鲁棒性，使用联合设计和优化技术来提供最佳功率，速率和预编码适配策略供无线发射机使用， 用于无线接收机的最佳反馈方案和索引分配映射。 另外，本文描述的各种优化和设计技术是使用与离线优化设计相结合的低复杂度在线自适应来执行的。