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111. 发明申请

US20120263156A1 METHOD AND APPARATUS FOR GENERATING VARIOUS TRANSMISSION MODES FOR WLAN SYSTEMS 有权
标题翻译：用于生成WLAN系统的各种传输模式的方法和装置
公开(公告)号：US20120263156A1
公开(公告)日：2012-10-18
申请号：US13445753
申请日：2012-04-12
申请人： Santosh Paul Abraham , Vincent Knowles Jones, IV , Hemanth Sampath , Didier Johannes Richard Van Nee , Sameer Vermani , Stephen J. Shellhammer
发明人： Santosh Paul Abraham , Vincent Knowles Jones, IV , Hemanth Sampath , Didier Johannes Richard Van Nee , Sameer Vermani , Stephen J. Shellhammer
IPC分类号： H04W84/12
CPC分类号： H04L5/0023 , H04L5/0044 , H04W16/14 , H04W72/044 , H04W72/0453 , H04W84/12
摘要： Certain aspects of the present disclosure relate to a technique for generating 40+40 MHz and 40+40+40+40 MHz transmission modes for IEEE 802.11 wireless communications systems using Very High Throughput (VHT) waveforms with application to Television White Space (TVWS) spectrum.
摘要翻译：本公开的某些方面涉及用于为应用于电视白色空间（TVWS）的非常高吞吐量（VHT）波形的IEEE 802.11无线通信系统生成40 + 40MHz和40 + 40 + 40 + 40MHz传输模式的技术。光谱。

112. 发明申请

US20120257605A1 SYSTEMS AND METHODS FOR COMMUNICATION OF CHANNEL STATE INFORMATION 有权
公开(公告)号：US20120257605A1
公开(公告)日：2012-10-11
申请号：US13247062
申请日：2011-09-28
申请人： Santosh Paul Abraham , Simone Merlin , Sameer Vermani , Hemanth Sampath
发明人： Santosh Paul Abraham , Simone Merlin , Sameer Vermani , Hemanth Sampath
IPC分类号： H04W24/00 , H04W84/12
CPC分类号： H04B7/0626 , H04B7/0641 , H04B7/0643 , H04L1/0025 , H04L1/0026 , H04L1/0028 , H04L1/0039 , H04L1/0079 , H04L1/1607 , H04L5/0023 , H04L5/0057 , H04L5/0094 , H04L25/0204 , H04L25/021 , H04L25/0248
摘要： Certain aspects of the present disclosure relate to a technique for communicating Channel State Information (CSI) feedback. In some aspects, the CSI feedback is communicated in a very high throughput (VHT) wireless communications system.

113. 发明申请

US20120236971A1 SYSTEMS AND METHODS FOR WIRELESS COMMUNICATION IN SUB GIGAHERTZ BANDS 有权
标题翻译：用于无线通信的系统和方法在GIGAHERTZ BANDS
公开(公告)号：US20120236971A1
公开(公告)日：2012-09-20
申请号：US13410633
申请日：2012-03-02
申请人： Mohammad Hossein Taghavi Nasrabadi , Sameer Vermani , Lin Yang , Hemanth Sampath
发明人： Mohammad Hossein Taghavi Nasrabadi , Sameer Vermani , Lin Yang , Hemanth Sampath
IPC分类号： H04L27/28 , H04B7/00
CPC分类号： H04L27/2647 , H04L5/0023 , H04L5/0053 , H04L27/2613 , H04L27/2628
摘要： Systems, methods, and devices for wireless communication. In one aspect, an apparatus for wireless communication is provided. The apparatus includes a receiver configured to receive a wireless signal comprising a packet. At least a portion of the wireless signal is configured to be received over a bandwidth lower than or equal to 1.25 MHz. The packet is formed from at least one orthogonal frequency-division multiplexing (OFDM) symbol comprising thirty-two tones. The thirty-two tones correspond to frequency subcarriers within the bandwidth. The thirty-two tones of the at least one OFDM symbol are allocated as: twenty-four data tones, two pilot tones, five guard tones, and one direct current (DC) tone. The apparatus includes a processor configured to evaluate the wireless signal. The processor includes a transform module configured to convert the at least one OFDM symbol into a frequency domain signal using a thirty-two point mode.
摘要翻译：用于无线通信的系统，方法和设备。一方面，提供一种无线通信装置。该装置包括被配置为接收包括分组的无线信号的接收机。无线信号的至少一部分被配置为在低于或等于1.25MHz的带宽上接收。分组由包括三十二个音调的至少一个正交频分复用（OFDM）符号形成。 32个音调对应于带宽内的频率子载波。至少一个OFDM符号的三十二个音调被分配为：二十四个数据音调，两个导频音调，五个保护音调和一个直流（DC）音调。该装置包括被配置为评估无线信号的处理器。处理器包括变换模块，其被配置为使用三十二点模式将至少一个OFDM符号转换成频域信号。

114. 发明授权

US08238295B2 Demodulation of a subset of available link assignment blocks 有权
标题翻译：对可用链路分配块的子集进行解调
公开(公告)号：US08238295B2
公开(公告)日：2012-08-07
申请号：US12022085
申请日：2008-01-29
申请人： Ravi Palanki , Alexei Gorokhov , Hemanth Sampath
发明人： Ravi Palanki , Alexei Gorokhov , Hemanth Sampath
IPC分类号： H04W4/00
CPC分类号： H04W48/12 , H04W76/27
摘要： Systems and methodologies are described that facilitate assigning indices to link assignment blocks (LABs) communicated via a downlink. Indices in a first subset are allocated to shared LABs, which are decoded by a plurality of access terminals. Indices in a second subset are assigned to unshared LABs, which are each intended for a particular recipient access terminal. Assignment of an index for each unshared LAB can be based upon a hash of an identifier corresponding to an intended recipient access terminal and/or access terminal capabilities. Moreover, an access terminal can decode LABs based upon corresponding indices. LABs with indices in a first range can be identified as shared LABs and decoded. Further, the access terminal can determine a second range of indices corresponding to unshared LABs to decode; the second range of indices includes fewer than all indices corresponding to unshared LABs in a frame sent by a base station.
摘要翻译：描述了便于将索引分配给经由下行链路传送的链路分配块（LAB）的系统和方法。第一子集中的指示被分配给由多个接入终端解码的共享LAB。第二子集中的索引被分配给未共享的LAB，每个LAB都用于特定的接收者接入终端。每个非共享LAB的索引的分配可以基于与预期接收者接入终端和/或接入终端能力相对应的标识符的散列。此外，接入终端可以基于相应的索引来解码LAB。索引在第一范围内的LAB可以被识别为共享LAB并被解码。此外，接入终端可以确定与未共享的LAB对应的索引的第二范围进行解码; 索引的第二范围包括少于由基站发送的帧中与非共享LAB相对应的全部索引。

115. 发明申请

US20120176921A1 CHANNEL STATE INFORMATION (CSI) FEEDBACK PROTOCOL FOR MULTIUSER MULTIPLE INPUT, MULTIPLE OUTPUT (MU-MIMO) 有权
标题翻译：多路输入多路输出（MU-MIMO）的信道状态信息（CSI）反馈协议
公开(公告)号：US20120176921A1
公开(公告)日：2012-07-12
申请号：US13176947
申请日：2011-07-06
申请人： Santosh Paul Abraham , Simone Merlin , Hemanth Sampath , Maarten Menzo Wentink , Vincent Knowles Jones, IV
发明人： Santosh Paul Abraham , Simone Merlin , Hemanth Sampath , Maarten Menzo Wentink , Vincent Knowles Jones, IV
IPC分类号： H04J1/16
CPC分类号： H04L25/0226 , H04L1/0026 , H04L1/1671 , H04L5/0023 , H04L5/0048 , H04L5/0053 , H04L25/0204 , H04L25/0222 , H04L25/0228 , H04L25/03343 , H04L2025/03426 , H04L2025/03802
摘要： Certain aspects of the present disclosure provide techniques and apparatus for using channel state information (CSI) feedback for multiuser multiple-input multiple-output (MU-MIMO) transmission. For certain aspects, a method of wireless communications generally includes generating a training frame and transmitting the generated training frame. The training frame typically includes first information identifying a group of one or more apparatuses and second information indicating whether each of the apparatuses in the group is to determine at least one characteristic of a channel. For other aspects, a method of wireless communications generally includes receiving a request at an apparatus and transmitting, in response to the received request, a packet using frame aggregation, wherein two or more frames are transmitted in a single transmission using a single header.
摘要翻译：本公开的某些方面提供了用于多用户多输入多输出（MU-MIMO）传输的信道状态信息（CSI）反馈的技术和装置。对于某些方面，无线通信的方法通常包括生成训练帧并发送生成的训练帧。训练帧通常包括识别一个或多个装置的组的第一信息和指示组中的每个装置是否确定频道的至少一个特征的第二信息。对于其他方面，无线通信的方法通常包括在装置处接收请求，并且响应于所接收的请求，使用帧聚合发送分组，其中使用单个报头在单个传输中发送两个或更多个帧。

116. 发明申请

US20120106371A1 COLLISION DETECTION AND BACKOFF WINDOW ADAPTATION FOR MULTIUSER MIMO TRANSMISSION 有权
标题翻译：用于多媒体MIMO传输的碰撞检测和后台窗口适配
公开(公告)号：US20120106371A1
公开(公告)日：2012-05-03
申请号：US13098089
申请日：2011-04-29
申请人： Santosh Paul Abraham , Simone Merlin , Vincent Knowles Jones , Maarten Menzo Wentink , Hemanth Sampath
发明人： Santosh Paul Abraham , Simone Merlin , Vincent Knowles Jones , Maarten Menzo Wentink , Hemanth Sampath
IPC分类号： H04W24/00 , H04L12/26
CPC分类号： H04W74/085 , H04B7/0452 , H04L1/1867 , H04L2001/0093 , H04W74/0816 , H04W84/12
摘要： Certain aspects of the present disclosure generally apply to a wireless local area network (WLAN) where an access point (AP) has data to send to multiple stations (STAs). By using the Downlink Spatial Division Multiple Access (DL-SDMA) technique, the AP may send data at the same time towards multiple STAs. Certain aspects of the present disclosure provide techniques and apparatuses for detecting that a multiuser multiple-input multiple-output (MU-MIMO) transmission has suffered a collision and to adapting a contention window (CW) size for a backoff counter applied to a subsequent MU-MIMO transmission.
摘要翻译：本公开的某些方面通常适用于其中接入点（AP）具有要发送到多个站（STA）的数据的无线局域网（WLAN）。通过使用下行链路空分多址（DL-SDMA）技术，AP可以同时向多个STA发送数据。本公开的某些方面提供用于检测多用户多输入多输出（MU-MIMO）传输遭受冲突并适应用于后续MU的退避计数器的争用窗口（CW）大小的技术和装置 -MIMO传输。

117. 发明授权

US08149810B1 Data rate adaptation in multiple-in-multiple-out systems 有权
标题翻译：多重多输出系统中的数据速率调整
公开(公告)号：US08149810B1
公开(公告)日：2012-04-03
申请号：US10620024
申请日：2003-07-14
申请人： Ravi Narasimhan , Hemanth Sampath
发明人： Ravi Narasimhan , Hemanth Sampath
IPC分类号： H04J1/00
CPC分类号： H04L1/0001 , H04B7/0689
摘要： A transmit data rate adaptation method in a multiple-in-multiple-out (MIMO) system with a first transceiver and a second transceiver. The first transceiver transmits signals to the second transceiver. The second transceiver analyzes channel quality of the received signals and uses link adaptation to generate a shortlist of transmit modes to send back to the first transceiver. The first transceiver cycles through the shortlist of transmit modes to find an optimum transmit mode.
摘要翻译：一种具有第一收发器和第二收发器的多输入多出（MIMO）系统中的发送数据速率适配方法。第一收发器向第二收发器发射信号。第二收发器分析所接收信号的信道质量，并使用链路自适应来生成发送模式的最短列表以发送回第一收发信机。第一个收发器循环通过发送模式的最短列表以找到最佳发送模式。

118. 发明申请

US20120076081A1 PROTECTION MECHANISMS FOR MULTI-USER MIMO TRANSMISSIONS 审中-公开
公开(公告)号：US20120076081A1
公开(公告)日：2012-03-29
申请号：US13076113
申请日：2011-03-30
申请人： Simone Merlin , Santosh Paul Abraham , Hemanth Sampath , Vincent Knowles Jones , Maarten Menzo Wentink , Mohammad Hossein Taghavi Nasrabadi , Sameer Vermani , Didier Johannes Richard Van Nee
发明人： Simone Merlin , Santosh Paul Abraham , Hemanth Sampath , Vincent Knowles Jones , Maarten Menzo Wentink , Mohammad Hossein Taghavi Nasrabadi , Sameer Vermani , Didier Johannes Richard Van Nee
IPC分类号： H04W72/04
CPC分类号： H04W74/0816 , H04W72/121 , H04W72/1289 , H04W84/12
摘要： Certain aspects of the present disclosure relate to techniques for medium reservation in the case of multi-user (MU) communications. Multiple mechanisms are supported for protecting MU transmissions, wherein appropriate control messages can be exchanged between an access point and served user stations before transmitting downlink data packets.

119. 发明申请

US20120063429A1 METHODS AND APPARATUS OF FREQUENCY INTERLEAVING FOR 80 MHz TRANSMISSIONS 审中-公开
标题翻译：用于80 MHz传输的频率交互的方法和设备
公开(公告)号：US20120063429A1
公开(公告)日：2012-03-15
申请号：US13223018
申请日：2011-08-31
申请人： Lin Yang , Didier Johannes Richard Van Nee , Hemanth Sampath , Vincent Knowles Jones, IV , Albert Van Zelst , Sameer Vermani
发明人： Lin Yang , Didier Johannes Richard Van Nee , Hemanth Sampath , Vincent Knowles Jones, IV , Albert Van Zelst , Sameer Vermani
IPC分类号： H04W92/00
CPC分类号： H04L1/06 , H03M13/09 , H03M13/1102 , H03M13/23 , H03M13/29 , H03M13/2957 , H03M13/6362 , H03M13/6527 , H04L1/0033 , H04L1/0041 , H04L1/0045 , H04L1/0071
摘要： Certain aspects of the present disclosure provide techniques and apparatus for frequency interleaving for use with 80 MHz transmissions, such as those in the IEEE 802.11ac amendment to the IEEE 802.11 standard. According to certain aspects, frequency interleaving spatial streams for transmissions on channels having widths of about 80 MHz may comprise using an interleaving depth of 26. The number of frequency rotations may be 58 (or 29) for up to four (or up to eight) spatial streams. According to certain aspects, frequency interleaving up to eight (or up to four) spatial streams for transmission on channels having widths of about 80 MHz may comprise performing frequency rotation for each of the spatial streams based on a frequency rotation index=[0 4 2 6 1 5 3 7] (or=[0 2 1 3]).
摘要翻译：本公开的某些方面提供了用于频率交织以用于80MHz传输的技术和装置，例如在IEEE 802.11标准的IEEE 802.11ac修改中的传输。根据某些方面，用于在具有大约80MHz的宽度的信道上的传输的频率交织空间流可以包括使用交织深度26.对于多达四个（或多至八个）频率旋转的数目可以是58（或29）空间流。根据某些方面，用于在具有大约80MHz的宽度的信道上传输多达八个（或多至四个）空间流的频率交织可以包括基于频率旋转指数= [0 4 2 6 1 5 3 7]（或= [0 2 1 3]）。

120. 发明申请

US20120057575A1 METHOD AND APPARATUS FOR SIMULTANEOUS BEAM TRAINING 审中-公开
标题翻译：同步光束训练的方法与装置
公开(公告)号：US20120057575A1
公开(公告)日：2012-03-08
申请号：US13038496
申请日：2011-03-02
申请人： Mohammad Hossein Taghavi Nasrabadi , Avinash Jain , Hemanth Sampath
发明人： Mohammad Hossein Taghavi Nasrabadi , Avinash Jain , Hemanth Sampath
IPC分类号： H04W4/00
CPC分类号： H04B17/12 , H04B7/0617 , H04B7/0634 , H04B7/0695
摘要： Certain aspects of the present disclosure support techniques for simultaneous beam training of multiple pairs of wireless nodes for reduction of training overhead. Each pair of wireless nodes can utilize a different training sequence in order to mitigate interference. In one aspect, different training sequences can be based on different Golay codes with appropriate correlation properties.
摘要翻译：本公开的某些方面支持用于多对无线节点的同时波束训练以减少训练开销的技术。每对无线节点可以利用不同的训练序列来减轻干扰。在一个方面，不同的训练序列可以基于具有适当相关性质的不同格雷码。

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