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91.发明授权Physical layer metrics to support adaptive station-dependent channel state information feedback rate in multi-user communication systems 有权在多用户通信系统中支持自适应站相关信道状态信息反馈速率的物理层度量公开(公告)号：US08811200B2
公开(公告)日：2014-08-19
申请号：US12884854
申请日：2010-09-17
IPC分类号： H04W4/00
CPC分类号： H04L1/0027 , H04B7/0626 , H04B17/24 , H04B17/336 , H04L25/0202
摘要： Certain aspects of the present disclosure present physical layer metrics for supporting adaptive station-dependent channel state information feedback rate in multi-user communication systems. For certain aspects, the physical layer metrics may be calculated at the stations and communicated to the AP. For certain aspects, the metrics may be calculated at an access point utilizing information about channel characteristics of stations available at the access point.
摘要翻译： 本公开的某些方面呈现用于在多用户通信系统中支持自适应站相关信道状态信息反馈速率的物理层度量。 对于某些方面，物理层度量可以在站点处计算并传送到AP。 对于某些方面，可以使用关于在接入点处可用的站的信道特征的信息在接入点处计算度量。
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92.发明申请METHODS AND APPARATUSES FOR LOW-RATE TELEVISION WHITE SPACE (TVWS) ENABLEMENT 有权低频电视白天（TVWS）发起的方法和设备公开(公告)号：US20130016760A1
公开(公告)日：2013-01-17
申请号：US13349498
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
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，并且其可以发送接触验证信号 （CVS），以保持模式I设备启用TVWS通信。
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公开(公告)号：US20120076073A1
公开(公告)日：2012-03-29
申请号：US13076031
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： H04W4/00
CPC分类号： H04W74/0816
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.
摘要翻译： 本公开的某些方面涉及在多用户（MU）通信的情况下用于媒体预约的技术。 支持多种机制来保护MU传输，其中在传输下行链路数据分组之前，可以在接入点和服务用户站之间交换适当的控制消息。
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94.发明申请公开(公告)号：US20110222473A1
公开(公告)日：2011-09-15
申请号：US12883954
申请日：2010-09-16
申请人： Gregory A. Breit , Santosh Paul Abraham , Sameer Vermani , Hemanth Sampath , Simone Merlin , Didier Johannes Richard Van Nee
发明人： Gregory A. Breit , Santosh Paul Abraham , Sameer Vermani , Hemanth Sampath , Simone Merlin , Didier Johannes Richard Van Nee
IPC分类号： H04W4/00
CPC分类号： H04L25/03343 , H04B7/0417 , H04B7/0617 , H04B7/0626 , H04L1/0026 , H04L1/0027 , H04L1/1671 , H04L5/0048 , H04L25/0204 , H04L25/0222 , H04L25/0228 , H04L2001/0093 , H04L2025/03426 , H04L2025/03802
摘要： Methods and apparatuses are proposed for supporting one or more user-dependent channel state information (CSI) feedback rates in a downlink spatial division multiple access (SDMA) system. For certain aspects, an access point (AP) may receive a channel evolution feedback from one or more stations and send a request for CSI to the stations whose CSI values need to be updated. For certain aspects, the AP may poll the stations for updated CSI values. For certain aspects, deterministic back-off timers may be assigned to the stations indicating when to send their CSI feedback. The proposed methods may improve system performance.
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95.发明申请公开(公告)号：US20110199946A1
公开(公告)日：2011-08-18
申请号：US12958988
申请日：2010-12-02
申请人： Gregory A. Breit , Santosh Paul Abraham , Sameer Vermani , Hemanth Sampath , Vincent Knowles Jones
发明人： Gregory A. Breit , Santosh Paul Abraham , Sameer Vermani , Hemanth Sampath , Vincent Knowles Jones
CPC分类号： H04B7/0626 , H04B7/0413 , H04L1/0027 , H04L1/003 , H04L5/0048 , H04L25/0204 , H04L25/0222 , H04L25/0228 , H04L25/03343 , H04L2025/03426 , H04L2025/03802 , H04W72/04 , H04W88/02 , H04W88/08
摘要： Certain aspects of the present disclosure relate to techniques for achieving adaptive channel state information (CSI) feedback rate in multi-user communication systems. A rate by which CSI feedback can be transmitted from each user station of a wireless system to a serving access point may be adjusted based on evolution of a channel between that user station and the access point.
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公开(公告)号：US20100260060A1
公开(公告)日：2010-10-14
申请号：US12754430
申请日：2010-04-05
申请人： Santosh Abraham , Sameer Vermani , Hemanth Sampath
发明人： Santosh Abraham , Sameer Vermani , Hemanth Sampath
CPC分类号： H04W28/18 , H04L1/0026 , H04L25/0202 , H04L25/03343 , H04L2025/03426 , H04L2025/03815 , H04W24/00 , H04W84/12 , H04W88/08
摘要： Certain aspects of the present disclosure provide a protocol for calibration of an access point in a wireless network.
摘要翻译： 本公开的某些方面提供了用于在无线网络中校准接入点的协议。
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公开(公告)号：US20100046357A1
公开(公告)日：2010-02-25
申请号：US12352334
申请日：2009-01-12
申请人： Hemanth Sampath , Sameer Vermani
发明人： Hemanth Sampath , Sameer Vermani
CPC分类号： H04L5/026 , H04B1/707 , H04J11/00 , H04J13/0048 , H04L5/0021 , H04W72/0466
摘要： Methods and apparatus for using code-division multiple access (CDMA) via orthogonal frequency-division multiplexing (OFDM) to convey information from user terminals to an access point (AP) in a wireless local area network (WLAN), for example, are provided. Employed in an effort to support a large number of user terminals while avoiding collisions, this CDMA-based scheme may offer a number of advantages when compared to conventional techniques for transmitting UL signals from a large number of user terminals. First, efficiency with respect to the number of slots used may be increased. In addition, this scheme may be scalable to a high number of user terminals and may have a soft limit as to the number of users that can be supported. Furthermore, this CDMA-based scheme may offer greater tolerance to frequency offsets and may be utilized for ranging and power control.
摘要翻译： 提供了例如通过正交频分复用（OFDM）使用码分多址（CDMA）以将信息从用户终端传送到无线局域网（WLAN）中的接入点（AP）的方法和装置， 。 为了在避免冲突的同时支持大量的用户终端，与用于从大量用户终端发送UL信号的传统技术相比，这种基于CDMA的方案可以提供许多优点。 首先，可以增加相对于所使用的时隙数量的效率。 此外，该方案可以扩展到大量用户终端，并且可以具有关于可以支持的用户数量的软限制。 此外，这种基于CDMA的方案可以提供对频率偏移的更大的容限，并且可以用于测距和功率控制。
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98.发明申请公开(公告)号：US20090268603A1
公开(公告)日：2009-10-29
申请号：US12408363
申请日：2009-03-20
IPC分类号： H04J11/00
CPC分类号： H04L27/265 , G06F17/142 , H04L27/263
摘要： In embodiments, a fast Fourier transform (FFT) engine includes a series of stages, each stage containing a butterfly and a data normalization device configured to scale output of the stage's butterfly. The scaling factors are adjusted, for example, periodically or on as-needed basis, so that the dynamic range of the butterflies and the buffers is increased for a given bit-width, or the bit-width of these devices is decreased for the same dynamic range. Additionally, bit-width of other buffer(s) is decreased because of the scaling of the data.
摘要翻译： 在实施例中，快速傅里叶变换（FFT）引擎包括一系列级，每级包含蝴蝶和配置成缩放舞台蝴蝶的输出的数据归一化装置。 比例因子例如可以周期性地或根据需要进行调整，使得蝴蝶和缓冲器的动态范围在给定位宽度上增加，或者这些装置的位宽减小 动态范围。 此外，由于数据的缩放，其他缓冲区的位宽被减小。
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公开(公告)号：US09337954B2
公开(公告)日：2016-05-10
申请号：US13179651
申请日：2011-07-11
CPC分类号： H04L1/0027 , H04B7/0636 , H04L1/1607 , H04L5/0057 , H04W84/12
摘要： Certain aspects of the present disclosure relate to a low-overhead method for communicating Channel State Information (CSI) feedback in Very High Throughput (VHT) wireless communications systems. The present disclosure also provides packet formats for Null Data Packet Announcement (NDPA), CSI Poll and CSI feedback. In some cases, the CSI feedback may be too large to be carried in a single Media Access Control (MAC) protocol data unit (MPDU) or a Physical Layer (PHY) protocol data unit (PPDU), and a proposed protocol for CSI feedback segmentation can be then utilized.
摘要翻译： 本公开的某些方面涉及用于在非常高吞吐量（VHT）无线通信系统中传送信道状态信息（CSI）反馈的低开销方法。 本公开还提供用于空数据分组公告（NDPA），CSI轮询和CSI反馈的分组格式。 在某些情况下，CSI反馈可能太大，无法在单个媒体访问控制（MAC）协议数据单元（MPDU）或物理层（PHY）协议数据单元（PPDU）中携带，并且提出了CSI反馈协议 然后可以利用分割。
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公开(公告)号：US09130631B2
公开(公告)日：2015-09-08
申请号：US13287921
申请日：2011-11-02
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。
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