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51. 发明申请

US20130016670A1 METHODS AND APPARATUSES FOR COMMUNICATING IN TELEVISION WHITE SPACE (TVWS) BASED ON TVWS ENABLEMENT SIGNAL 有权
标题翻译：基于TVWS启动信号的通信电视空白（TVWS）的方法与设备
公开(公告)号：US20130016670A1
公开(公告)日：2013-01-17
申请号：US13349501
申请日：2012-01-12
申请人： Stephen J. Shellhammer , Cong Shen , Rahul Tandra , Santosh Paul Abraham , Sameer Vermani , Hemanth Sampath
发明人： Stephen J. Shellhammer , Cong Shen , Rahul Tandra , Santosh Paul Abraham , Sameer Vermani , Hemanth Sampath
IPC分类号： H04W72/04
CPC分类号： H04W16/14 , H04W84/12
摘要： Certain aspects of the present disclosure relate to techniques for supporting television white space (TVWS) communication. In an aspect of the present disclosure, a low-rate TVWS enabler (Mode II wireless communication device) may provide initial enablement for all Mode I devices (e.g., access points and user terminals), as well as it may transmit a contact verification signal (CVS) on a regular basis to keep the Mode I devices enabled for the TVWS communication.
摘要翻译：本公开的某些方面涉及用于支持电视空白（TVWS）通信的技术。在本公开的一方面，低速率TVWS使能器（模式II无线通信设备）可以为所有模式I设备（例如，接入点和用户终端）提供初始启用，并且它可以发送接触验证信号（CVS），以保持模式I设备启用TVWS通信。

52. 发明授权

US08345534B1 Scalable MIMO-OFDM PHY for high throughput WLANS 有权
标题翻译：可扩展的MIMO-OFDM PHY，用于高吞吐量WLANS
公开(公告)号：US08345534B1
公开(公告)日：2013-01-01
申请号：US13206105
申请日：2011-08-09
申请人： Ravi Narasimhan , Hemanth Sampath
发明人： Ravi Narasimhan , Hemanth Sampath
IPC分类号： H04J11/00
CPC分类号： H04B1/38 , H04B7/0447 , H04B7/0671 , H04B7/0697 , H04J13/004 , H04L1/0637 , H04L5/0023 , H04L5/0044 , H04L5/0053 , H04L27/2613
摘要： A transceiver including a frame formatter configured to generate a frame including orthogonal frequency-division multiplexing (OFDM) symbols for transmission on a plurality of antennas. The frame includes a short preamble including a short training symbol including a plurality of adjacent tones, wherein at least a plurality of the adjacent tones in the plurality are mapped to different ones of the plurality of antennas; a long preamble including at least a first set of long training symbols; a header including at least a first SIGNAL symbol; and a data field.
摘要翻译：一种收发器，包括帧格式化器，被配置为生成包括用于在多个天线上传输的正交频分复用（OFDM）符号的帧。所述帧包括短前导码，其包括包括多个相邻音调的短训练符号，其中所述多个中的至少多个相邻音调被映射到所述多个天线中的不同天线; 包括至少第一组长训练符号的长前导码; 标题，其包括至少第一信号符号; 和一个数据字段。

53. 发明申请

US20120289192A1 BEACON AND MANAGEMENT INFORMATION ELEMENTS WITH INTEGRITY PROTECTION 有权
标题翻译： BEACON和管理信息具有完整性保护的元素
公开(公告)号：US20120289192A1
公开(公告)日：2012-11-15
申请号：US13288696
申请日：2011-11-03
申请人： Santosh Paul Abraham , Avinash Jain , Hemanth Sampath
发明人： Santosh Paul Abraham , Avinash Jain , Hemanth Sampath
IPC分类号： H04W12/10
CPC分类号： H04L1/0083 , H04L1/0061 , H04L1/0072
摘要： Certain aspects of the present disclosure relate to protecting integrity of transmitted messages in a wireless communications.
摘要翻译：本公开的某些方面涉及保护无线通信中传输的消息的完整性。

54. 发明申请

US20120281620A1 BEAMFORMING FEEDBACK FORMAT 有权
标题翻译： BEAMFORMING反馈格式
公开(公告)号：US20120281620A1
公开(公告)日：2012-11-08
申请号：US13287921
申请日：2011-11-02
申请人： Hemanth Sampath , Sameer Vermani , Albert Van Zelst , Didier Johannes Richard Van Nee
发明人： Hemanth Sampath , Sameer Vermani , Albert Van Zelst , Didier Johannes Richard Van Nee
IPC分类号： H04W24/10 , H04W4/00
CPC分类号： H04B7/0417 , H04B7/0413 , H04B7/0617 , H04B7/0643 , H04B7/065 , H04B7/0689 , H04L1/0035 , H04L1/0054
摘要： Certain aspects of the present disclosure propose transmitting a feedback message to an access point. The feedback may comprise a beamforming extension field, which may carry per tone signal to noise ratio of a station. For certain aspects, the station transmitting the per-tone SNR may be a single user (SU)-capable device. For certain aspects, the station may indicate to the access point whether or not it has a maximum likelihood (ML) receiver.
摘要翻译：本公开的某些方面提出将反馈消息发送到接入点。反馈可以包括波束形成扩展字段，其可以承载站的每个音调信噪比。对于某些方面，发送每音调SNR的电台可以是单用户（SU）能力设备。对于某些方面，站可以向接入点指示其是否具有最大似然（ML）接收机。

55. 发明申请

US20120263141A1 SYSTEMS AND METHODS FOR RANGE EXTENSION OF WIRELESS COMMUNICATION IN SUB GIGAHERTZ BANDS 审中-公开
标题翻译： GIGAHERTZ银行无线通信范围扩展的系统和方法
公开(公告)号：US20120263141A1
公开(公告)日：2012-10-18
申请号：US13447153
申请日：2012-04-13
申请人： Mohammad Hossein Taghavi Nasrabadi , Hemanth Sampath , Vincent K. Jones, IV
发明人： Mohammad Hossein Taghavi Nasrabadi , Hemanth Sampath , Vincent K. Jones, IV
IPC分类号： H04W72/02
CPC分类号： H04W72/02 , H04L1/0003 , H04L1/001 , H04L1/0013 , H04L1/08 , H04L5/0044 , H04L27/2613
摘要： Systems, methods, and devices to enable range extension for wireless communication in sub-gigahertz bands are described herein. In some aspects, portions of packets are repeated in time and/or space when transmitting the packet in order to increase the chance that the packet can be decoded. The repetition of portions of the packet may be based, in part, on the channel characteristics of the channel over which the packet is sent. In some aspects, portions of packets are transmitted over a smaller bandwidth with increased power per frequency range.
摘要翻译：在本文中描述了用于在亚千兆赫兹频带中实现无线通信的范围扩展的系统，方法和设备。在一些方面，当发送分组时，在时间和/或空间中重复分组的部分，以便增加分组可以被解码的机会。分组的部分的重复可以部分地基于发送分组的信道的信道特性。在一些方面，分组的部分以较小的带宽传输，每个频率范围具有增加的功率。

56. 发明申请

US20120147795A1 APPARATUS, METHODS, AND ARTICLES OF MANUFACTURE FOR ADAPTIVE POWER CONTROL 有权
标题翻译：装置，方法和制造自适应功率控制的文章
公开(公告)号：US20120147795A1
公开(公告)日：2012-06-14
申请号：US12408346
申请日：2009-03-20
申请人： Sunil K. Kandukuri Narayan , Hemanth Sampath
发明人： Sunil K. Kandukuri Narayan , Hemanth Sampath
IPC分类号： H04W4/00 , H04J1/00
CPC分类号： H04W52/362
摘要： In embodiments, a first wireless device generates symbols for transmission to another wireless device. Adaptive power control is applied to the transmissions, for example, at symbol or frame boundaries. When a transmit power gain adjustment exceeds a threshold, all or part of the gain adjustment may be performed on the generated symbols before the symbols are combined in an overlap-and-add process. Part of the gain adjustment may also be performed through adjustment of the power amplifier. When the gain adjustment does not exceed the threshold, all of the gain adjustment may be performed through adjustment of the power amplifier. Performing gain adjustment before the overlap-and-add process results in a lower spectral spread of the transmitted waveform and improved bandwidth utilization efficiency. In embodiments, the power adjustment techniques are used in FDD/OFDM systems or other systems where a plurality of symbols or frames is transmitted substantially continuously.
摘要翻译：在实施例中，第一无线设备生成用于传输到另一无线设备的符号。自适应功率控制被应用于传输，例如在符号或帧边界。当发射功率增益调整超过阈值时，可以在符号在重叠和相加处理中组合之前对生成的符号执行全部或部分增益调整。增益调整的一部分也可以通过功率放大器的调节来执行。当增益调整不超过阈值时，可以通过功率放大器的调节来执行所有增益调整。在重叠和添加过程之前执行增益调整会导致传输波形的较低频谱扩展，并提高带宽利用率。在实施例中，功率调整技术用于FDD / OFDM系统或其中基本连续地发送多个符号或帧的其他系统。

57. 发明申请

US20120140754A1 METHOD FOR DIRECTIONAL ASSOCIATION 审中-公开
标题翻译：方向性协会的方法
公开(公告)号：US20120140754A1
公开(公告)日：2012-06-07
申请号：US13368458
申请日：2012-02-08
申请人： Mohammad Hossein Taghavi Nasrabadi , Hemanth Sampath , Santosh P. Abraham , Sameer Vermani
发明人： Mohammad Hossein Taghavi Nasrabadi , Hemanth Sampath , Santosh P. Abraham , Sameer Vermani
IPC分类号： H04W84/02
CPC分类号： H04W72/046 , H04W16/28 , H04W28/18
摘要： A method, an apparatus, and a computer program product operable in a wireless communication system are provided in which an access probe is generated for transmission to a wireless node. A first signal is generated for transmission to the wireless node. The first signal includes information corresponding to a first preferred beam pattern from the wireless node to the apparatus. A second signal is received from the wireless node including information corresponding to a second preferred beam pattern from the apparatus to the wireless node. The second preferred beam pattern is determined based on the access probe. The apparatus communicates with the wireless node using at least one of the first preferred beam pattern or the second preferred beam pattern.
摘要翻译：提供了一种在无线通信系统中可操作的方法，装置和计算机程序产品，其中产生访问探针用于传输到无线节点。生成第一信号以传输到无线节点。第一信号包括对应于从无线节点到设备的第一优选波束图案的信息。从无线节点接收到包括与从装置到无线节点的第二优选波束图对应的信息的第二信号。基于访问探针确定第二优选波束图案。该装置使用第一优选波束图或第二优选波束图案中的至少一个与无线节点进行通信。

58. 发明申请

US20120117446A1 PACKET-LEVEL ERASURE PROTECTION CODING IN AGGREGATED PACKET TRANSMISSIONS 有权
标题翻译：分组级保护编码在分组分组传输中的应用
公开(公告)号：US20120117446A1
公开(公告)日：2012-05-10
申请号：US13043259
申请日：2011-03-08
申请人： Mohammad Hossein Taghavi Nasrabadi , Hemanth Sampath , Simone Merlin , Santosh P. Abraham , Sameer Vermani , Rahul Tandra
发明人： Mohammad Hossein Taghavi Nasrabadi , Hemanth Sampath , Simone Merlin , Santosh P. Abraham , Sameer Vermani , Rahul Tandra
IPC分类号： H03M13/05 , G06F11/10
CPC分类号： H04L1/0003 , H04L1/0009 , H04L1/0019 , H04L1/0041 , H04L1/0057 , H04L1/0065 , H04L1/008 , H04L1/1819 , Y02D50/10
摘要： In a first aspect, an aggregated packet (A-MPDU) includes packets (MPDUs) and EC-Blocks (Error Correction Blocks) containing error correction coding information. A transmitter uses a Fountain coding scheme (for example, Raptor or RaptorQ) to generate the error correction coding information from the MPDUs. If a receiver detects an error in a received MPDU, then the receiver uses the error correction coding information from the EC-Blocks to correct the error. In a second novel aspect, a determination is made as to whether a change in error rate is more likely due to collisions or to a low SNR. If the determination is that the change is due to collisions then the MCS index is adjusted to restore a target error rate, whereas if the determination is that the change is due to a low SNR then the number of EC-Blocks per A-MPDU is adjusted to restore the target error rate.
摘要翻译：在第一方面，聚合分组（A-MPDU）包括包含纠错编码信息的分组（MPDU）和EC-块（纠错块）。发射机使用喷泉编码方案（例如，Raptor或RaptorQ）从MPDU生成纠错编码信息。如果接收机检测到接收到的MPDU中的错误，则接收机使用来自EC-Block的纠错编码信息来校正错误。在第二个新颖的方面，确定误差率的变化是否更可能是由于冲突或低SNR。如果确定改变是由于冲突，则MCS索引被调整以恢复目标错误率，而如果确定改变是由于低SNR，则每个A-MPDU的EC块的数量是调整以恢复目标错误率。

59. 发明申请

US20120033614A1 VHT-SIG-B FIELD IN NULL DATA PACKETS (NDPs) 有权
标题翻译： VHT-SIG-B字段在空数据包（NDP）中
公开(公告)号：US20120033614A1
公开(公告)日：2012-02-09
申请号：US13197600
申请日：2011-08-03
申请人： Hemanth Sampath , Vincent Knowles Jones, IV , Albert Van Zelst , Maarten Menzo Wentink , Santosh Paul Abraham , Simone Merlin
发明人： Hemanth Sampath , Vincent Knowles Jones, IV , Albert Van Zelst , Maarten Menzo Wentink , Santosh Paul Abraham , Simone Merlin
IPC分类号： H04W4/00
CPC分类号： H04L27/2613
摘要： Certain aspects of the present disclosure relate to methods and apparatus for using information in a Very High Throughput Signal B (VHT-SIG-B) field in the preamble of a null data packet (NDP). Retaining the VHT-SIG-B field in NDPs offers several advantages, such as maintaining a unified IEEE 802.11ac preamble structure, providing for 4 μs extra time to process beamforming feedback, and being able to use information in the VHT-SIG-B field to determine a level of interference in the NDP.
摘要翻译：本公开的某些方面涉及在空数据分组（NDP）的前导码中的非常高吞吐量信号B（VHT-SIG-B）字段中使用信息的方法和装置。保留NDP中的VHT-SIG-B字段提供了几个优点，例如保持统一的IEEE 802.11ac前导码结构，提供4μs的额外时间来处理波束成形反馈，并且能够使用VHT-SIG-B字段中的信息以确定NDP中的干扰程度。

60. 发明申请

US20120026987A1 METHODS AND APPARATUSES FOR TRANSMITTING AN ALLOCATION OF TIME IN A WIRELESS SYSTEM 有权
标题翻译：在无线系统中传输时间分配的方法和装置
公开(公告)号：US20120026987A1
公开(公告)日：2012-02-02
申请号：US13018618
申请日：2011-02-01
申请人： Avinash Jain , Mohammad Hossein Taghavi Nasrabadi , Hemanth Sampath
发明人： Avinash Jain , Mohammad Hossein Taghavi Nasrabadi , Hemanth Sampath
IPC分类号： H04W72/04 , H04J3/00
CPC分类号： H04W74/0866 , H04W16/28 , H04W74/006
摘要： Various methods and apparatuses for transmitting an allocation of time in a wireless communication system are disclosed. In one aspect, an allocation of time for receiving communications via a receive beam direction is transmitted. The allocation of time may be based on information regarding an apparatus known to be located in the receive beam direction. A unique time for receiving communications from each known apparatus may be allocated, or a duration of time for receiving communications from the known apparatuses may vary based on a number of apparatuses known to located in a receive beam direction.
摘要翻译：公开了用于在无线通信系统中发送时间分配的各种方法和装置。在一个方面，发送用于经由接收波束方向接收通信的时间分配。时间的分配可以基于关于已知位于接收波束方向上的设备的信息。可以分配用于从每个已知设备接收通信的唯一时间，或者用于从已知设备接收通信的持续时间可以基于已知位于接收波束方向上的多个设备而变化。

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