专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

11. 发明授权

US07894402B2 High rate packet data spatial division multiple access (SDMA) 有权
标题翻译：高速率分组数据空分多址（SDMA）
公开(公告)号：US07894402B2
公开(公告)日：2011-02-22
申请号：US11106627
申请日：2005-04-15
申请人： Sridhar Gollamudi , Pantelis Monogioudis , Robert Atmaram Soni , Harish Viswanathan
发明人： Sridhar Gollamudi , Pantelis Monogioudis , Robert Atmaram Soni , Harish Viswanathan
IPC分类号： H04B7/216
CPC分类号： H04B7/0632 , H04B7/0491 , H04L1/0002 , H04L1/0025 , H04W52/40 , H04W52/50
摘要： Spatial Division Multiple Access (SDMA) may be implemented in both the forward and reverse link directions through the use of, for example, a sector-wide primary pilot channel and one or more beamformed secondary pilot channels (secondary pilot channel).
摘要翻译：可以通过使用例如扇区的主导频信道和一个或多个波束形成的次级导频信道（次级导频信道）来在前向和反向链路方向上实现空分多址（SDMA）。

12. 发明申请

US20100329123A1 DETECTION OF ACCESS POINT LOCATION ERRORS IN ENTERPRISE LOCALIZATION SYSTEMS 有权
标题翻译：检测企业本地化系统中的接入点位置错误
公开(公告)号：US20100329123A1
公开(公告)日：2010-12-30
申请号：US12495058
申请日：2009-06-30
申请人： Harish Viswanathan , Ning Wen
发明人： Harish Viswanathan , Ning Wen
IPC分类号： H04L12/26 , G06F17/30 , G06F7/04
CPC分类号： H04W24/00 , H04L41/12 , H04W64/003 , H04W80/04 , H04W84/12
摘要： Method and apparatus for validating location information associated with an access point (AP) in a wireless local area network (WLAN) by subjecting neighborhood node proximity information retrieved from an AP and neighborhood node location information retrieved from a database to a likelihood ratio tests (LRT). The neighborhood node proximity information retrieved from an AP comprises a list of nodes exhibiting at the AP a signal strength above a threshold level T, or link quality information associated with those nodes having a signal received by the AP.
摘要翻译：用于通过使从AP获取的邻域节点邻近信息和从数据库检索的邻域节点位置信息进行似然比检验（LRT）来验证与无线局域网（WLAN）中的接入点（AP）相关联的位置信息的方法和装置）。从AP检索的邻域节点邻近信息包括在AP处呈现高于阈值水平T的信号强度的节点列表，或与具有由AP接收的信号的那些节点相关联的链路质量信息。

13. 发明授权

US07801071B2 System and method for providing multi-beam scheduling 有权
标题翻译：提供多光束调度的系统和方法
公开(公告)号：US07801071B2
公开(公告)日：2010-09-21
申请号：US10697449
申请日：2003-10-30
申请人： Sridhar Gollamudi , Harish Viswanathan
发明人： Sridhar Gollamudi , Harish Viswanathan
IPC分类号： H04B7/212
CPC分类号： H04W16/28 , H04W16/24 , H04W72/044
摘要： Embodiments of the present invention relate to communication systems. Such communication systems may include a beamformer that is adapted to provide a plurality of beams, each of the plurality of beams providing communication for a corresponding coverage envelope, the plurality of coverage envelopes comprising at least one pair of overlapping coverage envelopes and at least one pair of non-overlapping coverage envelopes, and a scheduler that assigns system resources from a group of shared system resources to a plurality of receivers distributed throughout the coverage envelopes, the scheduler being adapted to assign the same system resources from the group of shared system resources for use during a simultaneous data transmission to a receiver in each of the coverage envelopes that comprises the at least one pair of non-overlapping coverage envelopes.
摘要翻译：本发明的实施例涉及通信系统。这样的通信系统可以包括适于提供多个波束的波束形成器，所述多个波束中的每一个为相应的覆盖包络提供通信，所述多个覆盖包络包括至少一对重叠的覆盖包络和至少一对非重叠覆盖包络的分组系统资源，以及调度器，其将系统资源从一组共享系统资源分配给分布在整个覆盖范围内的多个接收机，所述调度器适于从所述共享系统资源组中分配相同的系统资源，以供在包括至少一对不重叠的覆盖包络的每个覆盖包络中的接收机的同时数据传输期间使用。

14. 发明申请

US20100216478A1 Method and apparatus for operating a communications arrangement comprising femto cells 审中-公开
标题翻译：用于操作包括毫微微小区的通信装置的方法和装置
公开(公告)号：US20100216478A1
公开(公告)日：2010-08-26
申请号：US12378823
申请日：2009-02-20
申请人： Milind M Buddhikot , Irwin O Kennedy , Francis Joseph Mullany , Harish Viswanathan
发明人： Milind M Buddhikot , Irwin O Kennedy , Francis Joseph Mullany , Harish Viswanathan
IPC分类号： H04W72/00 , H04L27/28
CPC分类号： H04W16/02 , H04W16/14
摘要： A method for operating a communications arrangement comprising femto cells includes opportunistic use of the spectrum by a femto cell. The method may involve multi-operator spectrum re-use and/or multi-service spectrum re-use. The femto cell may use parts of the spectrum when they are not used by primary license holders. A femto base station 12 includes a spectrum decision unit 20 for using information about primary usage to determine operation of the femto base station 12 to achieve opportunistic re-use.
摘要翻译：用于操作包括毫微微小区的通信装置的方法包括毫微微小区对频谱的机会性使用。该方法可以涉及多用户频谱重用和/或多业务频谱重用。当毫微微小区不被主许可证持有者使用时，毫微微小区可以使用频谱的一部分。毫微微基站12包括频谱决定单元20，用于使用关于主要使用的信息来确定毫微微基站12的操作以实现机会性重用。

15. 发明授权

US07738422B2 Interference-reducing method of forward link scheduling for wireless networks 有权
标题翻译：无线网络前向链路调度的干扰减少方法
公开(公告)号：US07738422B2
公开(公告)日：2010-06-15
申请号：US11210038
申请日：2005-08-23
申请人： Suman Das , Harish Viswanathan
发明人： Suman Das , Harish Viswanathan
IPC分类号： H04W4/00
CPC分类号： H04W72/06 , H04L47/10 , H04W16/24 , H04W52/281 , H04W72/10
摘要： A method of scheduling and sub-channelization is provided for a wireless network such as an OFDMA network. Distributed coordination is applied across sectors, such neighboring sectors will tend to schedule cell-edge users at the same time, while sub-channelizing to different portions of the full frequency band available for forward link transmissions. This tendency is achieved by dividing each sector's users into user classes which depend upon forward link channel quality. Each user class is assigned a different set of priorities for use of available timeslots and subcarriers.
摘要翻译：为诸如OFDMA网络的无线网络提供调度和子信道化的方法。跨部门应用分布式协调，这些相邻扇区将倾向于同时调度小区边缘用户，同时将子频道化到可用于前向链路传输的全频段的不同部分。这种趋势是通过将每个扇区的用户划分为依赖于前向链路信道质量的用户类来实现的。为每个用户类分配不同的优先级集合，以使用可用的时隙和副载波。

16. 发明申请

US20090005074A1 Method and Apparatus for Activating a Base Station 有权
标题翻译：用于激活基站的方法和装置
公开(公告)号：US20090005074A1
公开(公告)日：2009-01-01
申请号：US11769839
申请日：2007-06-28
申请人： Colin Leon Kahn , Thierry Etienne Klein , Agnes C. Tow , Harish Viswanathan
发明人： Colin Leon Kahn , Thierry Etienne Klein , Agnes C. Tow , Harish Viswanathan
IPC分类号： H04Q7/20
CPC分类号： H04W24/02 , H04W4/90 , H04W76/50 , H04W84/005
摘要： The invention includes a method and apparatus for activating a base station. A method includes transitioning the base station to a first state in which at least one base station activation activity is performed and RF transmissions are disabled, and transitioning the base station from the first state to a second state in which RF transmissions are enabled. The at least one base station activation activity may include at least one of warming at least one power amplifier, setting at least one base station configuration parameter, establishing GPS synchronization, and other base station activation activities. The base station may transition from the first state to the second state in response to a trigger.
摘要翻译：本发明包括用于激活基站的方法和装置。一种方法包括将基站转换到其中执行至少一个基站激活活动和禁止RF传输的第一状态，以及将基站从第一状态转换到启用RF传输的第二状态。至少一个基站激活活动可以包括升温至少一个功率放大器，设置至少一个基站配置参数，建立GPS同步和其他基站激活活动中的至少一个。响应于触发，基站可以从第一状态转变到第二状态。

17. 发明申请

US20070195734A1 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：US20070195734A1
公开(公告)日：2007-08-23
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： H04J11/00 , H04B7/216 , 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

18. 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.

19. 发明申请

US20060251036A1 High rate packet data Spatial Division Multiple Access (SDMA) 有权
标题翻译：高速率分组数据空间多址（SDMA）
公开(公告)号：US20060251036A1
公开(公告)日：2006-11-09
申请号：US11106627
申请日：2005-04-15
申请人： Sridhar Gollamudi , Pantelis Monogioudis , Robert Soni , Harish Viswanathan
发明人： Sridhar Gollamudi , Pantelis Monogioudis , Robert Soni , Harish Viswanathan
IPC分类号： H04B7/216
CPC分类号： H04B7/0632 , H04B7/0491 , H04L1/0002 , H04L1/0025 , H04W52/40 , H04W52/50
摘要： Spatial Division Multiple Access (SDMA) may be implemented in both the forward and reverse link directions through the use of, for example, a sector-wide primary pilot channel and one or more beamformed secondary pilot channels (secondary pilot channel).
摘要翻译：可以通过使用例如扇区的主导频信道和一个或多个波束形成的次级导频信道（次级导频信道）来在前向和反向链路方向上实现空分多址（SDMA）。

20. 发明授权

US06898441B1 Communication system having a flexible transmit configuration 有权
标题翻译：通信系统具有灵活的发送配置
公开(公告)号：US06898441B1
公开(公告)日：2005-05-24
申请号：US09660095
申请日：2000-09-12
申请人： Achilles George Kogiantis , Mehmet Oguz Sunay , Harish Viswanathan
发明人： Achilles George Kogiantis , Mehmet Oguz Sunay , Harish Viswanathan
IPC分类号： H04B7/06 , H04B7/26 , H04W8/18 , H04W12/10 , H04B1/38 , H04M1/00
CPC分类号： H04B7/0689 , H04B7/061 , H04B7/0628 , H04B7/0632 , H04B7/0678 , H04W8/18
摘要： A communication system's transmit configuration is reconfigured based on mobile station associated conditions such as the capability of the mobile receiver, carrier to interference or signal to noise ratios, and the degree of mobility associated with the mobile station. As a result, the transmit configuration is optimized for the conditions associated with a particular mobile receiver. In one embodiment, the transmit configuration may be selected to operate in configurations such as a single transmit antenna configuration, a space time spreading configuration, a selective transmit diversity, and a multi-output and multi-input configuration.
摘要翻译：基于移动台相关联的条件（诸如移动接收机的能力，载波干扰或信噪比）以及与移动站相关联的移动程度，重新配置通信系统的发送配置。结果，对于与特定移动接收机相关联的条件，发送配置被优化。在一个实施例中，可以选择发射配置以在诸如单个发射天线配置，空间时间扩展配置，选择性发射分集以及多输出和多输入配置的配置中操作。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式