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1. 发明授权

US09184810B2 Scheduling algorithms for multi-user (MU) multiple-input multiple-output (MIMO) communication systems 有权
标题翻译：多用户（MU）多输入多输出（MIMO）通信系统的调度算法
公开(公告)号：US09184810B2
公开(公告)日：2015-11-10
申请号：US13465522
申请日：2012-05-07
申请人： Zhi Quan , Simone Merlin , Santosh Paul Abraham , Sameer Vermani , Hemanth Sampath
发明人： Zhi Quan , Simone Merlin , Santosh Paul Abraham , Sameer Vermani , Hemanth Sampath
IPC分类号： H04W4/00 , H04B7/04 , H04W72/12
CPC分类号： H04B7/0452 , H04W72/12 , H04W72/1221
摘要： A method is provided for wirelessly transmitting from a transmitter to one or more receivers within a multi-user (MU) multiple-input and multiple-output (MIMO) communication system. A number of concurrent (spatial) streams are dynamically allocated in a MU-MIMO transmission to each of a plurality of served receivers to maximize total data transmitted on each transmission. Streams are allocated according to a corresponding transmission queue length for each receiver and the number of receive antennas used by each of the served receivers. A transmission timer is started upon sending the transmission. A random backoff counter is also started upon one of either: (a) expiration of the transmission timer or (b) receipt of data at a transmission queue. A new transmission is sent upon expiration of the random backoff counter if the transmission timer has expired. Otherwise, the random backoff counter is restarted one or more times until the transmission timer has expired.
摘要翻译：提供了一种用于从多用户（MU）多输入（MIMO）通信系统中的发射机向一个或多个接收机进行无线发射的方法。在MU-MIMO传输中动态地将多个并行（空间）流分配给多个服务接收机中的每一个，以最大化在每个传输上传输的总数据。流根据每个接收机的相应传输队列长度和每个被服务接收机使用的接收天线的数量来分配。传送定时器在发送传输时开始。以下之一也开始随机退避计数器：（a）传输定时器到期或（b）在传输队列处接收数据。如果发送定时器已经到期，则在随机退避计数器到期时发送新的传输。否则，随机退避计数器重新启动一次或多次，直到传输定时器到期。

2. 发明授权

US08923219B2 Method and apparatus for supporting adaptive channel state information feedback rate in multi-user communication systems 有权
标题翻译：在多用户通信系统中支持自适应信道状态信息反馈速率的方法和装置
公开(公告)号：US08923219B2
公开(公告)日：2014-12-30
申请号：US12958959
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
IPC分类号： H04W4/00 , H04L1/00 , H04B7/06 , H04L25/02 , H04L25/03 , H04L5/00
CPC分类号： H04L25/03343 , H04B7/0626 , H04B7/0658 , H04L1/0026 , H04L1/0029 , H04L1/003 , H04L5/0048 , H04L25/0204 , H04L25/0222 , H04L25/0228 , H04L2025/03426 , H04L2025/03777
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.
摘要翻译：本公开的某些方面涉及用于在多用户通信系统中实现自适应信道状态信息（CSI）反馈速率的技术。基于无线系统的每个用户站向服务接入点发送CSI反馈的速率可以基于该用户站与接入点之间的信道的演进来调整。

3. 发明申请

US20130044681A1 MANAGING TRANSMIT POWER FOR BETTER FREQUENCY RE-USE IN TV WHITE SPACE 审中-公开
标题翻译：管理发射功率，在电视白天更好的频率重新使用
公开(公告)号：US20130044681A1
公开(公告)日：2013-02-21
申请号：US13397493
申请日：2012-02-15
申请人： Santosh Paul Abraham , Sameer Vermani , Hemanth Sampath , Stephen J. Shellhammer , Rahul Tandra
发明人： Santosh Paul Abraham , Sameer Vermani , Hemanth Sampath , Stephen J. Shellhammer , Rahul Tandra
IPC分类号： H04W4/00
CPC分类号： H04L1/0002 , H04L1/0009 , H04L1/0025 , H04L1/0027 , H04W16/14 , H04W52/262 , H04W52/50
摘要： Certain aspects of the present disclosure provide techniques and apparatus for managing transmit power in a television white space (TVWS) network. By managing transmit power as described herein, medium re-use may be improved in such a network, and unfair usage problems may be alleviated. One example method generally includes receiving a request message comprising an indication of a modulation and coding scheme (MCS) for transmitting data frames to be received, determining a link margin based on the MCS, and transmitting a response message with an indication of the link margin. Another example method generally includes determining a MCS for transmitting data frames and transmitting a request message comprising an indication of the MCS.
摘要翻译：本公开的某些方面提供了用于管理电视空白（TVWS）网络中的发射功率的技术和装置。通过如本文所述管理发送功率，可以在这样的网络中改善中等重复使用，并且可以减轻不公平的使用问题。一个示例性方法通常包括接收包括用于发送要接收的数据帧的调制和编码方案（MCS）的指示的请求消息，基于MCS确定链路余量，以及发送具有链路余量指示的响应消息。另一示例性方法通常包括确定用于发送数据帧的MCS并发送包括MCS的指示的请求消息。

4. 发明申请

US20130044680A1 MANAGING TRANSMIT POWER FOR BETTER FREQUENCY RE-USE IN TV WHITE SPACE 有权
标题翻译：管理发射功率，在电视白天更好的频率重新使用
公开(公告)号：US20130044680A1
公开(公告)日：2013-02-21
申请号：US13397473
申请日：2012-02-15
申请人： Santosh Paul Abraham , Sameer Vermani , Hemanth Sampath , Stephen J. Shellhammer , Rahul Tandra
发明人： Santosh Paul Abraham , Sameer Vermani , Hemanth Sampath , Stephen J. Shellhammer , Rahul Tandra
IPC分类号： H04W52/04
CPC分类号： H04W16/14 , H04W48/12 , H04W52/242 , H04W52/246 , H04W52/325 , H04W52/367 , H04W74/0808
摘要： Certain aspects of the present disclosure provide techniques and apparatus for managing transmit power in a television white space (TVWS) network. By managing transmit power as described herein, medium re-use may be improved in such a network, and unfair usage problems may be alleviated. One example method generally includes receiving, from an apparatus, a message with an indication of a highest transmit power used by the apparatus for transmitting data frames; and determining that the apparatus is a dominant interferer based, at least in part, on the highest transmit power. Another example method generally includes receiving, from an apparatus, a control or management message with a first indication of a first transmit power used by the apparatus for transmitting data frames; and determining that the apparatus is a dominant interferer based, at least in part, on the first transmit power.
摘要翻译：本公开的某些方面提供了用于管理电视空白（TVWS）网络中的发射功率的技术和装置。通过如本文所述管理发送功率，可以在这样的网络中改善中等重复使用，并且可以减轻不公平的使用问题。一个示例性方法通常包括从设备接收具有由用于发送数据帧的设备使用的最高发射功率的指示的消息; 以及至少部分地基于最高发射功率确定所述装置是主要干扰源。另一示例性方法通常包括从装置接收控制或管理消息，其具有用于发送数据帧的装置所使用的第一发射功率的第一指示; 以及至少部分地基于所述第一发射功率来确定所述装置是主要干扰源。

5. 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。

6. 发明授权

US09882624B2 Systems and methods for communication of channel state information 有权
公开(公告)号：US09882624B2
公开(公告)日：2018-01-30
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 , H04B7/06 , H04L1/00 , H04L1/16 , H04L5/00 , H04L25/02
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.

7. 发明授权

US09813994B2 Managing transmit power for better frequency re-use in TV white space 有权
公开(公告)号：US09813994B2
公开(公告)日：2017-11-07
申请号：US13397450
申请日：2012-02-15
申请人： Santosh Paul Abraham , Sameer Vermani , Hemanth Sampath , Stephen J. Shellhammer , Rahul Tandra
发明人： Santosh Paul Abraham , Sameer Vermani , Hemanth Sampath , Stephen J. Shellhammer , Rahul Tandra
IPC分类号： H04W24/00 , H04W52/04 , H04B7/12 , H04L1/00 , H04W52/32 , H04W74/08 , H04L1/06 , H04W52/36
CPC分类号： H04W52/04 , H04B7/12 , H04L1/0002 , H04L1/0009 , H04L1/0027 , H04L1/06 , H04W16/14 , H04W52/325 , H04W52/367 , H04W74/0816
摘要： Certain aspects of the present disclosure provide techniques and apparatus for managing transmit power in a television white space (TVWS) network. One example method generally includes transmitting a sequence of request-to-send (RTS) messages at different transmit power levels to an apparatus and determining if a clear-to-send (CTS) message was received in response to at least one of the RTS messages corresponding to a particular one of the transmit power levels. Another example method generally includes receiving, at a first apparatus from a second apparatus, a packet that cannot be decoded by the first apparatus; determining at least one of a time or a duration corresponding to the packet; transmitting a query with an indication of the at least one of the time or the duration; and receiving a message from the second apparatus in response to the query, the message identifying the second apparatus as a source of the packet.

8. 发明授权

US09609520B2 Methods and apparatuses for communicating in television white space (TVWS) based on TVWS enablement signal 有权
公开(公告)号：US09609520B2
公开(公告)日：2017-03-28
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 , H04W16/14 , H04W84/12
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.

9. 发明授权

US09173234B2 Protection mechanisms for multi-user MIMO transmissions 有权
公开(公告)号：US09173234B2
公开(公告)日：2015-10-27
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： H04B7/00 , H04W74/08
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.

10. 发明授权

US09094175B2 Method and apparatus for saving power by using signal field of preamble 有权
标题翻译：通过使用前置码的信号场来节省功率的方法和装置
公开(公告)号：US09094175B2
公开(公告)日：2015-07-28
申请号：US13182190
申请日：2011-07-13
申请人： Santosh Paul Abraham , Hemanth Sampath , Sameer Vermani
发明人： Santosh Paul Abraham , Hemanth Sampath , Sameer Vermani
IPC分类号： H04L1/00
CPC分类号： H04L1/0061 , H04L1/0044 , H04L2001/0093
摘要： Certain aspects of the present disclosure relate to a technique for power saving at mobile stations in Very High Throughput (VHT) systems using signal field bits of a preamble with a limited transmission overhead. The present disclosure proposes a method of indicating to a destination through a preamble cyclic redundancy check (CRC) checksum that the destination may be the intended destination of a transmission packet. The present disclosure also proposes a method of indicating to a destination through a preamble CRC that the destination may not be the intended destination of a transmission packet. In this case, decoding of the received packet can be terminated in order to save power at a receiving device.
摘要翻译：本公开的某些方面涉及使用具有有限传输开销的前导码的信号字段位在超高吞吐量（VHT）系统中的移动站节电的技术。本公开提出了一种通过前导循环冗余校验（CRC）校验和向目的地指示目的地可以是传输分组的预期目的地的方法。本公开还提出了一种通过前导码向目的地指示目的地可能不是传输分组的预期目的地的方法。在这种情况下，可以终止对接收到的分组的解码，以便在接收设备处节省功率。

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