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31. 发明授权

US08363587B2 Signaling methods for MMSE precoding with eigenmode selection 有权
标题翻译：用于本征模式选择的MMSE预编码的信令方法
公开(公告)号：US08363587B2
公开(公告)日：2013-01-29
申请号：US12408938
申请日：2009-03-23
申请人： Simone Merlin , Hemanth Sampath , Santosh Abraham , Alok Aggarwal , Vinay Sridhara , Sameer Vermani
发明人： Simone Merlin , Hemanth Sampath , Santosh Abraham , Alok Aggarwal , Vinay Sridhara , Sameer Vermani
IPC分类号： H04H20/71
CPC分类号： H04B7/065 , H04B7/0417 , H04B7/0434
摘要： Different methods of signaling between an access point and user terminals in a multiuser wireless system for performing a minimum mean square error (MMSE) precoding at the access point preceded with eigenmode selection are provided. For one embodiment of the present disclosure, a compact feedback may be utilized between a plurality of user terminals and the access point. For another embodiment of the present disclosure, a hybrid feedback may be utilized between the plurality of user terminals and the access point. For yet another embodiment of the present disclosure, a full feedback may be utilized between the plurality of user terminals and the access point.
摘要翻译：提供了在多用户无线系统中的接入点和用户终端之间用于在本征模式选择之前的接入点执行最小均方误差（MMSE）预编码的不同的信令方法。对于本公开的一个实施例，可以在多个用户终端和接入点之间使用紧凑的反馈。对于本公开的另一实施例，可以在多个用户终端和接入点之间使用混合反馈。对于本公开的另一个实施例，可以在多个用户终端和接入点之间使用完全反馈。

32. 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。

33. 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。

34. 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。

35. 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。

36. 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。

37. 发明授权

US08208920B2 Reference signal management in mobile systems 失效
标题翻译：移动系统中的参考信号管理
公开(公告)号：US08208920B2
公开(公告)日：2012-06-26
申请号：US12349399
申请日：2009-01-06
申请人： Hemanth Sampath , Jeremy H. Lin , Kurt W. Otte , Rajat Prakash
发明人： Hemanth Sampath , Jeremy H. Lin , Kurt W. Otte , Rajat Prakash
IPC分类号： H04W4/00 , H04W36/00 , H04B1/38
CPC分类号： H04W36/0083 , H04W36/14 , H04W48/12 , H04W52/0229 , Y02D70/00 , Y02D70/1222 , Y02D70/1242 , Y02D70/1262 , Y02D70/142 , Y02D70/146 , Y02D70/164
摘要： A reference signal management (RSM) program executing on a mobile device detects multiple reference signals, allocates those reference signals into groups, and performs reference signal management functions using information conveyed in the reference signals. The RSM program detects both broadband and narrowband reference signals and maintains updated groups of reference signals that are transmitted from access points with independent configurations or different radio technologies. Battery power of the mobile device is efficiently used to manage reference signals in heterogeneous network environments by preventing unnecessary handoffs, overhead downloads, access probes and new registrations. Reference signals are managed from both synchronous and asynchronous sectors and in idle mode as well as in connected state mode. The RSM program performs functions such as managing handoffs between access points, managing an idle mode of the mobile device, managing an active group of the detected reference signals, and collecting overhead parameters for the mobile device.
摘要翻译：在移动设备上执行的参考信号管理（RSM）程序检测多个参考信号，将这些参考信号分组，并使用在参考信号中传送的信息来执行参考信号管理功能。 RSM程序检测宽带和窄带参考信号，并维护从具有独立配置或不同无线电技术的接入点发送的更新的参考信号组。通过防止不必要的切换，开销下载，接入探测和新的注册，移动设备的电池功率被有效地用于在异构网络环境中管理参考信号。参考信号由同步和异步扇区以及空闲模式以及连接状态模式进行管理。 RSM程序执行诸如管理接入点之间的切换，管理移动设备的空闲模式，管理检测到的参考信号的活动组以及收集移动设备的开销参数的功能。

38. 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。

39. 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。

40. 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。

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