专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明申请

US20160174253A1 METHOD OF CHANNEL ACCESS CONTROL IN WIRELESS LOCAL AREA NETWORKS 审中-公开
标题翻译：无线局域网通道接入控制方法
公开(公告)号：US20160174253A1
公开(公告)日：2016-06-16
申请号：US14903596
申请日：2014-07-13
申请人： Jianhan LIU , James June-Ming WANG , Thomas Edward PARE, JR. , Yung-Ping HSU , MEDIATEK SINGAPORE PTE. LTD.
发明人： Jianhan Liu , James June-Ming Wang , Thomas Edward Pare, JR. , Yung-Ping Hsu
IPC分类号： H04W74/00 , H04W24/08
CPC分类号： H04W74/002 , H04W24/02 , H04W24/08 , H04W48/08 , H04W74/006 , H04W84/12
摘要： A method to improve the area throughput of dense wireless local area networks (WLAN) by channel access control is proposed. The method allows an access point to obtain information of a plurality of stations within the wireless network. The access point classifies the plurality of stations into at least one group of stations and assigns a group identification (ID) according to the obtained information. The group ID and channel access control parameters are sent to the stations that are classified into the certain group. The stations in each of the group use the received channel access control parameters to communicate with the access point.
摘要翻译：提出了一种通过信道访问控制来提高密集无线局域网（WLAN）面积吞吐量的方法。该方法允许接入点获得无线网络内的多个站的信息。接入点将多个站分类为至少一组站，并根据获得的信息分配组标识（ID）。组ID和通道访问控制参数被发送到分类到特定组的站。每个组中的站使用接收到的信道访问控制参数与接入点进行通信。

2. 发明申请

US20160366548A1 DIRECTION FINDING AND FTM POSITIONING IN WIRELESS LOCAL AREA NETWORKS 审中-公开
标题翻译：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。

3. 发明申请

US20170063512A1 SUBCHANNEL FEEDBACK FOR OFDMA SYSTEMS 审中-公开
标题翻译： 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。

4. 发明申请

US20090046011A1 Method and Apparatus for Calibration for Beamforming of Multi-Input-Multi-Output (MIMO) Orthogonol Frequency Division Multiplexing (OFDM) Transceivers 有权
标题翻译：用于多输入多输出（MIMO）正交波分复用（OFDM）收发器波束形成校准的方法和装置
公开(公告)号：US20090046011A1
公开(公告)日：2009-02-19
申请号：US11840897
申请日：2007-08-17
申请人： Chien-Cheng Tung , Thomas Edward Pare, JR.
发明人： Chien-Cheng Tung , Thomas Edward Pare, JR.
IPC分类号： H01Q3/00
CPC分类号： H04B7/0417 , H04L27/2626 , H04L27/2647 , H04L27/364 , H04L27/3863
摘要： An embodiment of the present invention includes a calibration system employed in a multi-input-multi-output (MIMO) system for beamforming and receiving a plurality of streams. The system includes a first calibration circuit responsive to inphase (I) and quadrature (Q) pairs of stream and operative to calibrate each I and Q pair and a second calibration circuit responsive to the calibrated I and Q pairs for all streams, wherein the first and second calibration circuits perform calibration in the time domain.
摘要翻译：本发明的实施例包括用于波束成形和接收多个流的多输入多输出（MIMO）系统中的校准系统。该系统包括响应于同相（I）和正交（Q）对流并且可操作地校准每个I和Q对的第一校准电路，以及响应于所有流的经校准的I和Q对的第二校准电路，其中第一并且第二校准电路在时域中执行校准。

5. 发明申请

US20090046768A1 METHOD AND APPARATUS FOR ADAPTIVE REDUCED OVERHEAD TRANSMIT BEAMFORMING FOR WIRELESS COMMUNICATION SYSTEMS 有权
标题翻译：适用于无线通信系统的自适应减少传输波束的方法和装置
公开(公告)号：US20090046768A1
公开(公告)日：2009-02-19
申请号：US11949706
申请日：2007-12-03
申请人： Thomas Edward Pare, JR.
发明人： Thomas Edward Pare, JR.
IPC分类号： H04B1/38
CPC分类号： H04B7/0413
摘要： A multi input multi output (MIMO) transceiver having a channel estimation module being responsive to received samples including channel state information (CSI) and operative to generate time domain beamforming parameters, in accordance with an embodiment of the present invention. The multi input multi output (MIMO) transceiver further includes an adaptive beamforming parameters module coupled to receive said time domain beamforming parameters and operative to generate time domain adaptive beamforming parameters, said adaptive beamforming parameters module operative to process said time domain beamforming parameters to generate frequency domain adaptive beamforming parameters, a decoding module coupled to receive said frequency domain adaptive beamforming parameters and operative to generate data bits, a channel parameters module coupled to receive said data bits and operative to extract said time domain adaptive beamforming parameters, an encoding module coupled to receive said time domain adaptive beamforming parameters and operative to generate a data packet, said encoding module operative to encode said data packet to generate a modulated data stream, and a beamform matrices module coupled to receive said modulated data stream and operative to generate a beamformed data stream based on said frequency domain adaptive beamforming parameters, said MIMO transceiver operative to process said beamformed data stream to generate output signals and to transmit said output signals by forming beam patterns.
摘要翻译：一种多输入多输出（MIMO）收发器，具有信道估计模块，响应于包括信道状态信息（CSI）的接收样本，并且可操作以产生时域波束成形参数，根据本发明的实施例。所述多输入多输出（MIMO）收发器还包括自适应波束成形参数模块，其耦合以接收所述时域波束成形参数并且可操作以产生时域自适应波束成形参数，所述自适应波束成形参数模块可操作以处理所述时域波束成形参数以产生频率域自适应波束成形参数，解码模块，被耦合以接收所述频域自适应波束形成参数并且可操作以产生数据比特，信道参数模块，被耦合以接收所述数据比特并且可操作以提取所述时域自适应波束成形参数，编码模块耦合到接收所述时域自适应波束成形参数并且可操作以产生数据分组，所述编码模块可操作地编码所述数据分组以生成调制数据流，以及波束形矩阵模块，耦合以接收所述调制数据流并且可操作以产生bea 基于所述频域自适应波束形成参数的成形数据流，所述MIMO收发器可操作以处理所述波束形成的数据流以产生输出信号并通过形成波束图案来发送所述输出信号。

6. 发明申请

US20090046003A1 Method and Apparatus for Beamforming of Multi-Input-Multi-Output (MIMO) Orthogonol Frequency Division Multiplexing (OFDM) Transceivers 有权
标题翻译：用于多输入多输出（MIMO）正交波分复用（OFDM）收发器波束成形的方法和装置
公开(公告)号：US20090046003A1
公开(公告)日：2009-02-19
申请号：US11840891
申请日：2007-08-17
申请人： Chien-Cheng Tung , Thomas Edward Pare, JR.
发明人： Chien-Cheng Tung , Thomas Edward Pare, JR.
IPC分类号： G01S7/40
CPC分类号： H04B17/0085 , H04B7/0413 , H04B7/0617 , H04B17/21
摘要： An embodiment of the present invention includes a calibration system employed in a multi-input-multi-output (MIMO) system for beamforming and receiving a plurality of streams. The system includes a first calibration circuit responsive to inphase (I) and quadrature (Q) pairs of stream and operative to calibrate each I and Q pair and a second calibration circuit responsive to the calibrated I and Q pairs for all streams, wherein the first and second calibration circuits perform calibration in the time domain.
摘要翻译：本发明的实施例包括用于波束成形和接收多个流的多输入多输出（MIMO）系统中的校准系统。该系统包括响应于同相（I）和正交（Q）对流并且可操作地校准每个I和Q对的第一校准电路，以及响应于所有流的经校准的I和Q对的第二校准电路，其中第一并且第二校准电路在时域中执行校准。

7. 发明公开

US20230261699A1 DEVICE AND METHOD FOR MULTI-ACCESS POINT COLLABORATIVE SOUNDING IN A WIRELESS NETWORK 审中-公开
公开(公告)号：US20230261699A1
公开(公告)日：2023-08-17
申请号：US18138659
申请日：2023-04-24
申请人： MediaTek Singapore Pte. Ltd.
发明人： Yongho Seok , Jianhan Liu , James Chih-Shi YEE , Thomas Edward Pare, JR.
IPC分类号： H04B7/024 , H04B7/06 , H04W24/02
CPC分类号： H04B7/024 , H04B7/0617 , H04B7/0626 , H04W24/02 , H04W84/12
摘要： Embodiments of the present invention provide an apparatus and method for a MAP wireless network that includes a collaborative channel sounding measurement phase to determine channel state information between devices (e.g., the channel state between an STA and a collaborative AP) for efficient configuration of the MAP wireless network and to improve the performance of the MAP wireless networks. The wireless AP and wireless STAs associated with the collaborative APs can simultaneously transmit by applying collaborative beamforming where the interferences between channels nullify each other (e.g., nulling), and the beamforming is performed based on a sounding phase performed by the collaborative APs.

8. 发明申请

US20230089003A1 Global CSD Index Assignment For Distributed-Tone Resource Unit Transmissions 有权
公开(公告)号：US20230089003A1
公开(公告)日：2023-03-23
申请号：US17946021
申请日：2022-09-15
申请人： MediaTek Singapore Pte. Ltd.
发明人： Shengquan Hu , Jianhan Liu , Thomas Edward Pare, JR.
IPC分类号： H04L5/00
摘要： Various schemes pertaining to global cyclic shift delay (CSD) assignment for distributed-tone resource unit (dRU) transmissions in wireless communications are described. An apparatus applies a CSD index assignment in distributing a plurality of subcarriers of a resource unit (RU) over a bandwidth to generate an extremely-high-throughput short training field (EHT-STF) of a dRU. The apparatus then transmits symbols of the EHT-STF of the dRU. The CSD index assignment is based on a dRU hierarchical structure with one or more CSD indexes shared among multiple dRUs of different sizes but not among multiple dRUs of a same size.

9. 发明申请

US20230073278A1 Encoding And Transmit Power Control For Downsized Uplink Trigger-Based PPDU Transmissions In Next-Generation WLAN Systems 有权
公开(公告)号：US20230073278A1
公开(公告)日：2023-03-09
申请号：US17988608
申请日：2022-11-16
申请人： MediaTek Singapore Pte. Ltd.
发明人： Shengquan Hu , Jianhan Liu , Thomas Edward Pare, JR.
IPC分类号： H04W52/24 , H04L1/00 , H04L5/00 , H04W52/14 , H04W52/54
摘要： Various schemes pertaining to encoding and transmit power control for downsized trigger-based (TB) physical-layer protocol data unit (PPDU) transmissions in next-generation WLAN systems are described. A station (STA) receives a trigger frame indicating an allocated resource unit (RU) of a first size. The STA performs channel sensing responsive to receiving the trigger frame. In response to detecting at least one subchannel being busy from the channel sensing, the STA performs a downsized trigger-based (TB) transmission with a downsized RU or multi-RU (MRU) of a second size smaller than the first size by utilizing downsized RU or MRU allocation information while maintaining a value of each of one or more parameters unchanged in an encoding process to perform the downsized TB transmission.

10. 发明申请

US20230043239A1 Enhanced High-Throughput Multi-Link Channel Access and Operation 有权
公开(公告)号：US20230043239A1
公开(公告)日：2023-02-09
申请号：US17972085
申请日：2022-10-24
申请人： MediaTek Singapore Pte. Ltd.
发明人： Kaiying Lu , Yongho Seok , James Chih-Shi Yee , Chao-Chun Wang , Jianhan Liu , Thomas Edward Pare, JR.
IPC分类号： H04W74/08 , H04W76/15
摘要： An apparatus (e.g., an access point (AP) establishes a plurality of links comprising a primary link and at least a secondary link. The apparatus transmits a management frame on the primary link to indicate a multi-link capability of the AP. The apparatus configures the secondary link for one or more non-AP stations (STAs), which are capable of operating on the primary link and the secondary link, with multi-link capability and operating parameters through an association procedure on the primary link.

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式