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11. 发明申请

US20060268786A1 Method of reverse link transmission in a wireless network using code and frequency multiplexing 有权
公开(公告)号：US20060268786A1
公开(公告)日：2006-11-30
申请号：US11133100
申请日：2005-05-19
申请人： Suman Das , Pantelis Monogioudis , Harish Viswanathan
发明人： Suman Das , Pantelis Monogioudis , Harish Viswanathan
IPC分类号： H04B7/216
CPC分类号： H04W52/241 , H04B7/2618 , H04L5/0007 , H04L5/0021 , H04L5/0044 , H04L5/0048 , H04L5/0064
摘要： A hybrid method of reverse link transmission provides improved performance, particularly in wireless packet data systems. The method includes aspects of both OFDMA transmission and MC-CDMA (Multi-carrier CDMA) transmission. In specific embodiments, an MC-CDMA pilot signal is used, and the data portion of the timeslot is partitioned between an MC-CDMA field and an OFDMA field.

12. 发明授权

US07515927B2 Method of reverse link dynamic power control in a wireless communication system using per-flow quality feedback for multi-flow data traffic 有权
标题翻译：无线通信系统中的反向链路动态功率控制方法，使用多流量数据流量的每流质量反馈
公开(公告)号：US07515927B2
公开(公告)日：2009-04-07
申请号：US11331999
申请日：2006-01-13
申请人： Suman Das , Pantelis Monogioudis , Shirish Nagaraj , Subramanian Vasudevan , Harish Viswanathan , Jialin Zou
发明人： Suman Das , Pantelis Monogioudis , Shirish Nagaraj , Subramanian Vasudevan , Harish Viswanathan , Jialin Zou
IPC分类号： H04Q7/20
CPC分类号： H04W52/286 , H04L1/1825 , H04W52/146 , H04W52/16 , H04W52/325
摘要： A closed loop power control based on receiving a continuous quality feedback is described. A main reverse link (RL) pilot is controlled by the quality feedback of a substantially continuous delay sensitive traffic stream, such as Voice-over-IP (VoIP), when such a stream is enabled. When such a stream is not enabled, the quality of a continuous RL overhead channel is used to control the pilot power. At the same time, the Traffic-to-Pilot Ratios (TPR) of contemporaneously transmitted delay sensitive data streams are independently adjusted based on a quality feedback associated with each such data stream.
摘要翻译：描述了基于接收连续质量反馈的闭环功率控制。当这样的流被启用时，主反向链路（RL）导频由基本上连续的延迟敏感业务流（例如IP语音（VoIP））的质量反馈控制。当不启用这样的流时，使用连续的RL开销信道的质量来控制导频功率。同时，基于与每个这样的数据流相关联的质量反馈独立地调整同时发送的延迟敏感数据流的业务对导频比（TPR）。

13. 发明申请

US20090003279A1 Method and Apparatus For Dynamically Creating and Updating Base Station Neighbor Lists 有权
标题翻译：动态创建和更新基站邻居列表的方法和装置
公开(公告)号：US20090003279A1
公开(公告)日：2009-01-01
申请号：US11771607
申请日：2007-06-29
申请人： David Abusch-Magder , Suman Das , Thierry Etienne Klein , Harish Viswanathan
发明人： David Abusch-Magder , Suman Das , Thierry Etienne Klein , Harish Viswanathan
IPC分类号： H04Q7/00
CPC分类号： H04W36/0083 , H04W48/12
摘要： The invention includes a method and apparatus for creating a base station neighbor list at a target base station in a wireless network including a plurality of base stations. A method includes obtaining information for creating the base station neighbor list, creating the base station neighbor list using the obtained information, and storing the base station neighbor list. The obtained information includes at least one of geographic locations of ones of the base stations, network status information associated with the wireless network, and pilot signal strength measurement feedback information. The base station neighbor list includes a subset of the base stations of the network. The base stations of the base station neighbor list may be prioritized using at least a portion of the obtained information. The base station neighbor list may be updated periodically, or in response to changes to the obtained information. The base station neighbor list is distributed from the base station to wireless user devices served by the base station for use by the wireless user devices in making handoff decisions.
摘要翻译：本发明包括一种用于在包括多个基站的无线网络中的目标基站处创建基站邻居列表的方法和装置。一种方法，包括获取用于创建基站邻居列表的信息，使用所获得的信息创建基站邻居列表，以及存储基站邻居列表。获得的信息包括基站中的一个的地理位置，与无线网络相关联的网络状态信息和导频信号强度测量反馈信息中的至少一个。基站邻居列表包括网络的基站的子集。可以使用获得的信息的至少一部分来优先考虑基站邻居列表的基站。可以周期性地更新基站邻居列表，或者响应于对获得的信息的改变。基站邻居列表从基站分配给由基站服务的无线用户设备，供无线用户设备进行切换决定。

14. 发明授权

US07263371B2 Method for controlling paging and registration of a mobile device in a wireless communications system 有权
标题翻译：用于控制无线通信系统中的移动设备的寻呼和注册的方法
公开(公告)号：US07263371B2
公开(公告)日：2007-08-28
申请号：US10941066
申请日：2004-09-13
申请人： Suman Das , Thierry E. Klein , Kin K. Leung , Sayandev Mukherjee , George E. Rittenhouse , Louis Gwyn Samuel , Harish Viswanathan , Haitao Zheng
发明人： Suman Das , Thierry E. Klein , Kin K. Leung , Sayandev Mukherjee , George E. Rittenhouse , Louis Gwyn Samuel , Harish Viswanathan , Haitao Zheng
IPC分类号： H04Q7/20
CPC分类号： H04W68/00 , H04W68/04
摘要： A method for locating a mobile device in a wireless communications system comprised of a plurality of base stations is provided. The method comprises associating the mobile device with a first base station of the plurality of base stations. Thereafter, a paging signal is delivered from a subset of base stations associated with the first base station to the mobile device. The subset of base stations may correspond to a network active set of base stations associated with the mobile device. Thereafter, when a signal from one of the base stations in the subset of base stations is received, indicating that the mobile device responded to the paging signal from the one base station, then the mobile device is located and may be associated with the one base station for future paging attempts.
摘要翻译：提供了一种用于在由多个基站组成的无线通信系统中定位移动设备的方法。该方法包括将移动设备与多个基站中的第一基站相关联。此后，寻呼信号从与第一基站相关联的基站的子集传送到移动设备。基站的子集可以对应于与移动设备相关联的基站的网络主动集合。此后，当接收到来自基站子集中的一个基站的信号时，指示移动设备响应于来自一个基站的寻呼信号，则移动设备被定位并且可以与一个基站相关联电台用于未来的寻呼尝试。

15. 发明申请

US20060058038A1 Method for controlling paging and registration of a mobile device in a wireless communications system 有权
标题翻译：用于控制无线通信系统中的移动设备的寻呼和注册的方法
公开(公告)号：US20060058038A1
公开(公告)日：2006-03-16
申请号：US10941066
申请日：2004-09-13
申请人： Suman Das , Thierry Klein , Kin Leung , Sayandev Mukherjee , George Rittenhouse , Louis Samuel , Harish Viswanathan , Haitao Zheng
发明人： Suman Das , Thierry Klein , Kin Leung , Sayandev Mukherjee , George Rittenhouse , Louis Samuel , Harish Viswanathan , Haitao Zheng
IPC分类号： H04Q7/20
CPC分类号： H04W68/00 , H04W68/04
摘要： A method for locating a mobile device in a wireless communications system comprised of a plurality of base stations is provided. The method comprises associating the mobile device with a first base station of the plurality of base stations. Thereafter, a paging signal is delivered from a subset of base stations associated with the first base station to the mobile device. The subset of base stations may correspond to a network active set of base stations associated with the mobile device. Thereafter, when a signal from one of the base stations in the subset of base stations is received, indicating that the mobile device responded to the paging signal from the one base station, then the mobile device is located and may be associated with the one base station for future paging attempts.
摘要翻译：提供了一种用于在由多个基站组成的无线通信系统中定位移动设备的方法。该方法包括将移动设备与多个基站中的第一基站相关联。此后，寻呼信号从与第一基站相关联的基站的子集传送到移动设备。基站的子集可以对应于与移动设备相关联的基站的网络主动集合。此后，当接收到来自基站子集中的一个基站的信号时，指示移动设备响应于来自一个基站的寻呼信号，则移动设备被定位并且可以与一个基站相关联电台用于未来的寻呼尝试。

16. 发明申请

US20060056282A1 Method of scheduling and forward link resource allocation in OFDM systems 审中-公开
标题翻译： OFDM系统中调度和转发链路资源分配的方法
公开(公告)号：US20060056282A1
公开(公告)日：2006-03-16
申请号：US10939719
申请日：2004-09-13
申请人： Suman Das , Harish Viswanathan
发明人： Suman Das , Harish Viswanathan
IPC分类号： H04J11/00 , H04B7/212
CPC分类号： H04L5/023 , H04L27/2608 , H04W28/06 , H04W52/34 , H04W72/0453 , H04W72/0473 , H04W72/12
摘要： A method of bandwidth allocation is provided for the forward link of an OFDM wireless communication system. Bandwidth is allocated to users in discrete blocks, but variable numbers of blocks are allocated to individual users. Multiple users can be served in one timeslot. The allocation is advantageously subjected to a power constraint and carried out in such a way as to drive up a figure of merit such as total throughput. In specific embodiments of the invention, power allocations to the different assigned blocks of bandwidth may vary in size.
摘要翻译：为OFDM无线通信系统的前向链路提供带宽分配的方法。带宽分配给离散块中的用户，但是可变数量的块被分配给个别用户。多个用户可以在一个时间段内投放。该分配有利地受到功率约束，并且以这样的方式执行，以便提高诸如总吞吐量的品质因数。在本发明的具体实施例中，对不同分配的带宽块的功率分配可以在大小上变化。

17. 发明授权

US08543154B2 Methods of reverse link power control 有权
标题翻译：反向链路功率控制方法
公开(公告)号：US08543154B2
公开(公告)日：2013-09-24
申请号：US13494305
申请日：2012-06-12
申请人： Suman Das , Shirish Nagaraj , Harish Viswanathan
发明人： Suman Das , Shirish Nagaraj , Harish Viswanathan
IPC分类号： H04B7/00
CPC分类号： H04W52/243 , H04L5/0016 , H04L5/0048 , H04L27/0008 , H04W52/146 , H04W52/16 , H04W52/24 , H04W52/247 , H04W52/36 , H04W52/362 , H04W52/367
摘要： Methods of reverse link power control are provided. A first example method includes first adjusting OFDMA transmission power based on first feedback signals during an OFDMA transmission and second adjusting OFDMA transmission power based on second feedback signals during periods between OFDMA transmissions. A second example method includes sending first power adjustment indicators based on measured OFDMA SINRs when receiving OFDMA transmissions from a mobile station and sending second power adjustment indicators based on estimated OFDMA SINRs when not receiving OFDMA transmissions from the mobile station. A third example method includes receiving a plurality of interference indicating signals from different base stations and determining whether to adjust a maximum transmit power threshold based on the plurality of interference indicating signals, the maximum transmit power threshold indicating the maximum permitted transmission power level below which transmissions are constrained.
摘要翻译：提供了反向链路功率控制的方法。第一示例性方法包括在OFDMA传输期间基于第一反馈信号来调整OFDMA传输功率，并且在OFDMA传输之间的时段期间，基于第二反馈信号来第二调整OFDMA传输功率。第二示例性方法包括当从移动台接收OFDMA传输时基于所测量的OFDMA SINR发送第一功率调整指示符，并且当不从移动台接收到OFDMA传输时，基于估计的OFDMA SINR发送第二功率调整指示符。第三示例性方法包括从不同的基站接收多个干扰指示信号，并且基于多个干扰指示信号确定是否调整最大发射功率阈值，所述最大发射功率阈值指示最大允许传输功率级别，受到约束

18. 发明授权

US08260340B2 Methods of reverse link power control 有权
标题翻译：反向链路功率控制方法
公开(公告)号：US08260340B2
公开(公告)日：2012-09-04
申请号：US11356242
申请日：2006-02-17
申请人： Suman Das , Shirish Nagaraj , Harish Viswanathan
发明人： Suman Das , Shirish Nagaraj , Harish Viswanathan
IPC分类号： H04B7/00
CPC分类号： H04W52/243 , H04L5/0016 , H04L5/0048 , H04L27/0008 , H04W52/146 , H04W52/16 , H04W52/24 , H04W52/247 , H04W52/36 , H04W52/362 , H04W52/367
摘要： Methods of reverse link power control are provided. A first example method includes first measuring a first type of interference, second measuring a second type of interference, determining a ratio between the first and second measurements and broadcasting the determined ratio to a plurality of mobile units. A second example method includes receiving a broadcasted ratio indicating a ratio between two different types of interference and calculating a power level for reverse link transmissions based on the received broadcasted ratio. A third example method includes first adjusting OFDMA transmission power based on first feedback signals during an OFDMA transmission and second adjusting OFDMA transmission power based on second feedback signals during periods between OFDMA transmissions. A fourth example method includes receiving a plurality of interference indicating signals from different base stations and determining whether to adjust a maximum transmit power threshold based on the plurality of interference indicating signals, the maximum transmit power threshold indicating the maximum permitted transmission power level below which transmissions are constrained.
摘要翻译：提供了反向链路功率控制的方法。第一示例性方法包括：首先测量第一类型的干扰，第二测量第二类型的干扰，确定第一和第二测量之间的比率，并将确定的比率广播到多个移动单元。第二示例性方法包括接收指示两种不同类型的干扰之间的比率的广播比率，并且基于所接收的广播比率来计算用于反向链路传输的功率电平。第三示例性方法包括：在OFDMA传输期间，基于第一反馈信号，在OFDMA传输期间，基于第二反馈信号，第二调整OFDMA传输功率，来调整OFDMA传输功率。第四示例性方法包括从不同的基站接收多个干扰指示信号，并且基于多个干扰指示信号确定是否调整最大发射功率阈值，所述最大发射功率阈值指示最大允许发射功率电平，受到约束

19. 发明授权

US07986627B2 Method for transmitting control information on the forward link of a wireless network 有权
标题翻译：用于在无线网络的前向链路上发送控制信息的方法
公开(公告)号：US07986627B2
公开(公告)日：2011-07-26
申请号：US11332023
申请日：2006-01-13
申请人： Suman Das , Shirish Nagaraj , Subramanian Vasudevan , Harish Viswanathan
发明人： Suman Das , Shirish Nagaraj , Subramanian Vasudevan , Harish Viswanathan
IPC分类号： H04J11/00
CPC分类号： H04L5/0053 , H04L5/0016
摘要： A signaling method is provided that can improve the efficiency of forward-link control signaling in OFDM systems. The method involves using a set of forward-link subcarriers that are dedicated for control information, and are shared by a set of two or more users. The control information destined for each user is spread using a respective spreading code, thereby to provide a spread control message. The spread control messages destined for the various users are summed together prior to transmission.
摘要翻译：提供了一种可以提高OFDM系统中前向链路控制信令的效率的信令方法。该方法包括使用专用于控制信息的一组前向链路子载波，并由一组两个或更多个用户共享。使用相应的扩展码来扩展发往每个用户的控制信息，从而提供扩展控制消息。传输给各种用户的扩展控制消息在发送之前被加在一起。

20. 发明授权

US07564822B2 Method of reverse link transmission in a wireless network using code and frequency multiplexing 有权
标题翻译：使用代码和频率复用的无线网络中的反向链路传输方法
公开(公告)号：US07564822B2
公开(公告)日：2009-07-21
申请号：US11133100
申请日：2005-05-19
申请人： Suman Das , Pantelis Monogioudis , Harish Viswanathan
发明人： Suman Das , Pantelis Monogioudis , Harish Viswanathan
IPC分类号： H04B7/216
CPC分类号： H04W52/241 , H04B7/2618 , H04L5/0007 , H04L5/0021 , H04L5/0044 , H04L5/0048 , H04L5/0064
摘要： A hybrid method of reverse link transmission provides improved performance, particularly in wireless packet data systems. The method includes aspects of both OFDMA transmission and MC-CDMA (Multi-carrier CDMA) transmission. In specific embodiments, an MC-CDMA pilot signal is used, and the data portion of the timeslot is partitioned between an MC-CDMA field and an OFDMA field.
摘要翻译：反向链路传输的混合方法提供了改进的性能，特别是在无线分组数据系统中。该方法包括OFDMA传输和MC-CDMA（多载波CDMA）传输的方面。在具体实施例中，使用MC-CDMA导频信号，并且时隙的数据部分在MC-CDMA字段和OFDMA字段之间被划分。

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