专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

61. 发明授权

US06952561B1 Enhanced metric for bit detection on fading channels with unknown statistics 有权
标题翻译：对未知统计信道的衰落信道进行位检测的增强度量
公开(公告)号：US06952561B1
公开(公告)日：2005-10-04
申请号：US09651849
申请日：2000-08-31
申请人： Sarath Kumar , Pantelis Monogioudis , Kiran M Rege , Ashwin Sampath
发明人： Sarath Kumar , Pantelis Monogioudis , Kiran M Rege , Ashwin Sampath
IPC分类号： H04B1/00 , H04B15/00 , H04L25/03
CPC分类号： H04L25/03171
摘要： A universal mobile telecommunications system (UMTS) receiver uses Pilot Symbol Assisted Modulation (PSAM) in demodulating a received Binary Phase Shift Keying (BPSK) signal. The UMTS receiver uses a ratio of the transmitted energy per pilot symbol to the transmitted energy per data symbol as an index into a look-up table to return a value for a scale factor for use in demodulation of the received signal, which provides better performance during periods when the fading distribution is unknown.
摘要翻译：通用移动电信系统（UMTS）接收机在解调接收的二进制相移键控（BPSK）信号中使用导频符号辅助调制（PSAM）。 UMTS接收机使用每个导频符号的发送能量与每个数据符号的发送能量的比率作为查找表中的索引，以返回用于解调接收信号的比例因子的值，这提供更好的性能在衰落分布未知的期间。

62. 发明授权

US09820156B2 Method and apparatus for timeslot swapping 有权
公开(公告)号：US09820156B2
公开(公告)日：2017-11-14
申请号：US12063657
申请日：2007-11-21
申请人： Gavin Bernard Horn , Ashwin Sampath
发明人： Gavin Bernard Horn , Ashwin Sampath
IPC分类号： H04L12/28 , H04W16/10 , H04W16/04 , H04W28/02 , H04W16/02
CPC分类号： H04W16/10 , H04W16/02 , H04W16/04 , H04W28/0231
摘要： All or a portion of a timeslot of a slotted communication system may be dynamically designated for transmitting or for receiving. For example, a timeslot originally designated for receiving information at a wireless node may be temporarily designated for transmitting information from the wireless node. Such a designation may be made to accommodate a temporary asymmetry in traffic flow between wireless nodes or may be made based on other criteria. In some aspects, a resource utilization messaging scheme may be employed to mitigate interference associated with the designation of timeslots for transmitting or receiving.

63. 发明授权

US09801188B2 Backhaul signaling for interference avoidance 有权
公开(公告)号：US09801188B2
公开(公告)日：2017-10-24
申请号：US12260849
申请日：2008-10-29
申请人： Aamod Khandekar , Avneesh Agrawal , Ashwin Sampath , Gavin B. Horn , Alexei Gorokhov , Naga Bhushan , Tingfang Ji
发明人： Aamod Khandekar , Avneesh Agrawal , Ashwin Sampath , Gavin B. Horn , Alexei Gorokhov , Naga Bhushan , Tingfang Ji
IPC分类号： H04W4/00 , H04W72/08 , H04W52/24 , H04W72/04 , H04W84/04 , H04W92/20
CPC分类号： H04W72/082 , H04W52/243 , H04W72/0426 , H04W84/045 , H04W92/20 , Y02D70/00
摘要： Providing for interference reduction and/or avoidance utilizing backhaul signaling between wireless access points (APs) of a wireless access network (AN) is described herein. By way of example, an interference avoidance request (IAR) can be issued by an AP to reduce signal interference on forward link (FL) and/or downlink (DL) transmissions by neighboring APs. The IAR can be routed via a backhaul network and/or over-the-air via access terminals (ATs) coupled with the AP or one or more interfering APs. Upon receiving the IAR, an interfering AP can determine reduced transmit power levels for FL and/or RL transmissions and respond to the IAR. The response can include reduced power levels and can be sent via the backhaul network or OTA. By employing the backhaul network in full or in part, interference avoidance can be conducted even for semi-planned or unplanned heterogeneous networks coupled by the backhaul.

64. 发明授权

US09277523B2 Method and apparatus for assisted positioning in a wireless communication system 有权
标题翻译：用于在无线通信系统中辅助定位的方法和装置
公开(公告)号：US09277523B2
公开(公告)日：2016-03-01
申请号：US12774410
申请日：2010-05-05
申请人： Ashwin Sampath , Raja Sekhar Bachu , Nathan Edward Tenny
发明人： Ashwin Sampath , Raja Sekhar Bachu , Nathan Edward Tenny
IPC分类号： H04W4/02 , H04W64/00 , H04W48/20
CPC分类号： H04W4/025 , H04W4/02 , H04W8/22 , H04W48/20 , H04W64/00
摘要： Systems and methodologies are described herein that facilitate reduced complexity network-assisted device positioning in a wireless communication system. As described herein, a mobile device and/or other suitable device can utilize positioning assistance messages received from a location server, a serving network cell, and/or other entities, to assist in position fixing based on reference signals (e.g., positioning reference signals (PRSs)) detected from nearby network cells. Positioning assistance messages as described herein can include, for example, information relating to PRS bandwidths, transmit antenna configurations, and/or other parameters of respective cells from which reference signals are detected by a device during positioning. As further described herein, messaging load can be reduced by providing bandwidth and/or antenna configuration information relative to a given reference cell, such that parameters of non-reference cells that are equivalent to corresponding parameters of the reference cell can be omitted from transmitted positioning assistance data.
摘要翻译：本文描述了有助于在无线通信系统中减少复杂度的网络辅助设备定位的系统和方法。如本文所述，移动设备和/或其他合适的设备可以利用从位置服务器，服务网络小区和/或其他实体接收的定位辅助消息，以帮助基于参考信号（例如，定位参考信号（PRS））从附近的网络小区检测。如本文所描述的定位辅助消息可以包括例如与定位期间设备检测到参考信号的各个小区的PRS带宽，发射天线配置和/或其他参数相关的信息。如本文进一步描述的，可以通过相对于给定参考小区提供带宽和/或天线配置信息来减少消息负载，使得可以从发送定位中省略等价于参考小区的相应参数的非参考小区的参数援助数据。

65. 发明授权

US08982851B2 Hearability improvements for reference signals 有权
标题翻译：参考信号的可靠性改进
公开(公告)号：US08982851B2
公开(公告)日：2015-03-17
申请号：US12651838
申请日：2010-01-04
申请人： Avneesh Agrawal , Ashwin Sampath , Ravi Palanki , Naga Bhushan , Raja Sekhar Bachu , Aamod D. Khandekar
发明人： Avneesh Agrawal , Ashwin Sampath , Ravi Palanki , Naga Bhushan , Raja Sekhar Bachu , Aamod D. Khandekar
IPC分类号： H04B7/216 , H04L27/28 , H04J11/00 , H04L5/00 , H04W72/12
CPC分类号： H04L5/005 , H04L1/1893 , H04L5/0048 , H04L5/0082 , H04W72/005 , H04W72/1247
摘要： Systems and methodologies are described that facilitate providing high reuse for transmitting reference signals, such as positioning reference signals (PRS) and cell-specific reference signals (CRS), to improve hearability thereof for applications such as trilateration and/or the like. In particular, PRSs can be transmitted in designated or selected positioning subframes. Resource elements within the positioning subframe can be selected for transmitting the PRSs and can avoid conflict with designated control regions, resource elements used for transmitting cell-specific reference signals, and/or the like. Resource elements for transmitting PRSs can be selected according to a planned or pseudo-random reuse scheme. In addition, a transmit diversity scheme can be applied to the PRSs to minimize impact of introducing the PRSs to legacy devices. Moreover, portions of a subframe not designated for PRS transmission can be utilized for user plane data transmission.
摘要翻译：描述了有助于提供用于传输参考信号（诸如定位参考信号（PRS）和小区特定参考信号（CRS））的高重用性的系统和方法，以改善诸如三边测量等应用的可听性。特别地，PRS可以在指定或选定的定位子帧中传输。可以选择定位子帧内的资源元素用于发送PRS，并且可以避免与指定的控制区域的冲突，用于发送小区特定参考信号的资源元素等。用于传输PRS的资源元素可以根据计划或伪随机重用方案来选择。此外，发射分集方案可以应用于PRS，以最小化将PRS引入传统设备的影响。此外，未指定用于PRS传输的子帧的部分可以用于用户平面数据传输。

66. 发明授权

US08964651B2 Traffic management employing interference management messages 有权
标题翻译：流量管理采用干扰管理信息
公开(公告)号：US08964651B2
公开(公告)日：2015-02-24
申请号：US12031631
申请日：2008-02-14
申请人： Anastasios Stamoulis , Ashwin Sampath
发明人： Anastasios Stamoulis , Ashwin Sampath
IPC分类号： H04W4/00 , H04W28/12 , H04W84/18
CPC分类号： H04W28/12 , H04W84/18
摘要： Various traffic management techniques may be employed in a multi-hop wireless communication system. For example, a decision to transmit data to another node may be based on whether that node is able to effectively transmit its data. A decision to transmit an interference management message may be based on the amount of data a parent node may transmit. A decision to transmit an interference management message may be based on how effectively data is being transmitted. A weight may be assigned for an interference management message based on a traffic scheduling policy.
摘要翻译：在多跳无线通信系统中可以采用各种业务管理技术。例如，将数据发送到另一个节点的决定可以基于该节点是否能够有效地发送其数据。发送干扰管理消息的决定可以基于父节点可以发送的数据量。发送干扰管理消息的决定可以基于如何有效地传输数据。可以基于流量调度策略为干扰管理消息分配权重。

67. 发明授权

US08924568B2 Methods and systems for managing contention among nodes in wireless communication systems 有权
标题翻译：用于管理无线通信系统中节点间竞争的方法和系统
公开(公告)号：US08924568B2
公开(公告)日：2014-12-30
申请号：US12365249
申请日：2009-02-04
申请人： Gavin Horn , Ashwin Sampath , Sanjiv Nanda
发明人： Gavin Horn , Ashwin Sampath , Sanjiv Nanda
IPC分类号： G06F15/16 , H04W72/00 , H04W72/04
CPC分类号： H04W72/0406 , H04W72/0446 , H04W72/12 , H04W74/08 , H04W92/18
摘要： A method of managing contention in a wireless network is described. The wireless network may include an access router and a plurality of access terminals connectable to the base station. The method may include designating a data slot as a downlink slot or an uplink slot, and sending a signal from the access router to the access terminals to indicate the designation of the data slot. The access router may determine whether the data slot should be designated as a downlink slot or an uplink slot by assessing information such QoS (quality of service) requirements contained in a REQ message received from one or more of the access terminals, and information regarding buffer level received from one or more of the access terminals.
摘要翻译：描述了一种在无线网络中管理竞争的方法。无线网络可以包括接入路由器和可连接到基站的多个接入终端。该方法可以包括将数据时隙指定为下行链路时隙或上行链路时隙，以及从接入路由器向接入终端发送信号以指示数据时隙的指定。访问路由器可以通过评估包含在从一个或多个接入终端接收的REQ消息中的QoS（服务质量）要求以及关于缓冲器的信息来确定数据时隙是否应该被指定为下行链路时隙或上行链路时隙从一个或多个接入终端接收的电平。

68. 发明授权

US08918114B2 Using resource utilization messages in a multi-carrier MAC to achieve fairness 有权
标题翻译：在多载波MAC中使用资源利用消息来实现公平性
公开(公告)号：US08918114B2
公开(公告)日：2014-12-23
申请号：US11553383
申请日：2006-10-26
申请人： Rajarshi Gupta , Ashwin Sampath , Gavin Horn , Anastasios Stamoulis , Nikhil Jain
发明人： Rajarshi Gupta , Ashwin Sampath , Gavin Horn , Anastasios Stamoulis , Nikhil Jain
IPC分类号： H04W72/00 , H04W72/04 , H04W28/24 , H04W72/08
CPC分类号： H04W72/0406 , H04W28/24 , H04W72/082
摘要： Systems and methods are disclosed that facilitate dynamically adjusting a number of resources, such as channels, frequencies, tones, etc., occupied by a node (e.g., an access point, and access terminal, etc.) in accordance with various aspects. A level of service experienced at the node may be determined, and a resource utilization message (RUM) may be generated if the level of service is at or below a predetermined threshold level (e.g., an acceptable level of service). The RUM may indicate a number of resources selected by the node for subsequent use, and may be transmitted to one or more other nodes.
摘要翻译：公开了根据各个方面促进动态调整节点（例如，接入点和接入终端等）所占用的诸如信道，频率，音调等的资源的数量的系统和方法。可以确定在节点处经历的服务级别，并且如果服务级别处于或低于预定阈值级别（例如，可接受的服务级别），则可以生成资源利用消息（RUM）。 RUM可以指示由节点选择以供后续使用的资源的数量，并且可以被发送到一个或多个其他节点。

69. 发明授权

US08798665B2 Beacon-based control channels 有权
标题翻译：基于信标的控制通道
公开(公告)号：US08798665B2
公开(公告)日：2014-08-05
申请号：US12163812
申请日：2008-06-27
申请人： Ravi Palanki , Avneesh Agrawal , Alexei Gorokhov , Aamod Khandekar , Ashwin Sampath , Dexu Lin
发明人： Ravi Palanki , Avneesh Agrawal , Alexei Gorokhov , Aamod Khandekar , Ashwin Sampath , Dexu Lin
IPC分类号： H04W48/12
CPC分类号： H04L5/0053 , H04L1/0056 , H04L1/0072 , H04L5/0096 , H04L27/10 , H04W4/20
摘要： Systems and methodologies are described that facilitate transmitting control information in wireless networks. Portions of bandwidth can be blanked for transmitting control information, and the control information transmitters can utilize beacon symbols to convey the control information. In this regard, interference is mitigated with respect to data transmissions over the control information bandwidth. Selected frequencies of the beacon symbols in a codeword can be used to indicate the control information. The codewords can be encoded with an error control code to provide redundancy for decoding in the presence of some interference.
摘要翻译：描述了有助于在无线网络中发送控制信息的系统和方法。可以将部分带宽消隐以发送控制信息，并且控制信息发射机可以利用信标符号来传达控制信息。在这方面，相对于控制信息带宽上的数据传输，减轻了干扰。可以使用码字中的信标符号的选定频率来指示控制信息。可以用错误控制码对码字进行编码，以在存在一些干扰的情况下提供用于解码的冗余。

70. 发明授权

US08767541B2 Scheduling policy-based traffic management 有权
标题翻译：计划基于策略的流量管理
公开(公告)号：US08767541B2
公开(公告)日：2014-07-01
申请号：US12031641
申请日：2008-02-14
申请人： Anastasios Stamoulis , Ashwin Sampath
发明人： Anastasios Stamoulis , Ashwin Sampath
IPC分类号： H04W72/12 , H04B7/26 , H04W84/04
CPC分类号： H04W72/1278 , H04B7/2606 , H04L47/24 , H04W28/02 , H04W72/12 , H04W72/1205 , H04W72/1231 , H04W84/047
摘要： Various traffic management techniques may be employed in a multi-hop wireless communication system. For example, a decision to transmit data to another node may be based on whether that node is able to effectively transmit its data. A decision to transmit an interference management message may be based on the amount of data a parent node may transmit. A decision to transmit an interference management message may be based on how effectively data is being transmitted. A weight may be assigned for an interference management message based on a traffic scheduling policy.
摘要翻译：在多跳无线通信系统中可以采用各种业务管理技术。例如，将数据发送到另一个节点的决定可以基于该节点是否能够有效地发送其数据。发送干扰管理消息的决定可以基于父节点可以发送的数据量。发送干扰管理消息的决定可以基于如何有效地传输数据。可以基于流量调度策略为干扰管理消息分配权重。

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