专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

51. 发明授权

US08744510B2 Power control method and apparatus for wireless communications 失效
标题翻译：无线通信功率控制方法及装置
公开(公告)号：US08744510B2
公开(公告)日：2014-06-03
申请号：US12021571
申请日：2008-01-29
申请人： Pranav Dayal , Tingfang Ji
发明人： Pranav Dayal , Tingfang Ji
IPC分类号： H04W52/10 , H04W52/04
CPC分类号： H04W52/10 , H04W52/08 , H04W52/146 , H04W52/242
摘要： Power control for wireless communication may involve determining the transmit power to be used by a wireless device. A wireless device using open loop power control may select a transmit power based on an open loop power equation where a parameter of the power equation may be based on one or more power control messages received from another wireless device. In some aspects, path loss may be estimated for open loop power control and a value for Offset_BSperSS may be obtained from information provided by a base station for closed loop power control. To facilitate a stable combined open-closed loop algorithm, open loop power control may be used to compensate channel changes based on reciprocity, and closed loop power control may be used to compensate interference variations (e.g., as compared to NI provided by a DCD message).
摘要翻译：用于无线通信的功率控制可以涉及确定由无线设备使用的发射功率。使用开环功率控制的无线设备可以基于开环功率方程来选择发射功率，其中功率方程的参数可以基于从另一无线设备接收的一个或多个功率控制消息。在一些方面，可以为开环功率控制估计路径损耗，并且可以从基站为闭环功率控制提供的信息获得Offset_BSperSS的值。为了促进稳定的组合开环闭环算法，可以使用开环功率控制来基于互惠来补偿信道变化，并且可以使用闭环功率控制来补偿干扰变化（例如，与由DCD消息提供的NI相比较）。

52. 发明申请

US20120263032A1 METHODS AND APPARATUS FOR RESOLVING IDENTIFIER CONFLICTS IN A COMMUNICATION SYSTEM 审中-公开
标题翻译：用于解决通信系统中的标识符冲突的方法和装置
公开(公告)号：US20120263032A1
公开(公告)日：2012-10-18
申请号：US13533522
申请日：2012-06-26
申请人： Rajat Prakash , Alexei Gorokhov , Fatih Ulupinar , Parag Arun Agashe , Pranav Dayal
发明人： Rajat Prakash , Alexei Gorokhov , Fatih Ulupinar , Parag Arun Agashe , Pranav Dayal
IPC分类号： H04L12/26
CPC分类号： H04L5/0001 , H04W72/0426
摘要： Apparatus and methods of allocating identifiers in a communication system include receiving, at a first access point, a set of physical layer identifiers used by a plurality of access points, with assistance from an access terminal. The apparatus and methods further include detecting, relative to one of the plurality of access points, a conflicting physical layer identifier. Additionally, the apparatus and methods include selecting, at the first access point, a first physical layer identifier distinct from the conflicting physical layer identifier.
摘要翻译：在通信系统中分配标识符的装置和方法包括：在第一接入点，在接入终端的帮助下，接收由多个接入点使用的一组物理层标识符。所述装置和方法还包括相对于所述多个接入点之一检测冲突的物理层标识符。另外，装置和方法包括在第一接入点处选择与冲突的物理层标识符不同的第一物理层标识符。

53. 发明申请

US20110242969A1 METHOD AND APPARATUS TO FACILITATE SUPPORT FOR MULTI-RADIO COEXISTENCE 有权
标题翻译：促进多无线电共享支持的方法和装置
公开(公告)号：US20110242969A1
公开(公告)日：2011-10-06
申请号：US12883877
申请日：2010-09-16
申请人： Pranav Dayal , Rajat Prakash
发明人： Pranav Dayal , Rajat Prakash
IPC分类号： H04W24/04
CPC分类号： H04W36/0055 , H04W36/16 , H04W36/20 , H04W36/30 , H04W88/06 , H04W88/10
摘要： A user equipment (UE) monitors coexistence issues of one or more associated communication resources. The UE initiates link recovery procedures (e.g., declaring a Radio Link Failure (RLF)) in response to the monitoring when a coexistence issue is detected. The UE can also access a new channel or a new Radio Access Technology (RAT) in response to initiating the link recovery. The network may have the ability to control whether the UE can initiate the link recovery.
摘要翻译：用户设备（UE）监视一个或多个相关通信资源的共存问题。响应于当检测到共存问题时的监视，UE发起链路恢复过程（例如，声明无线电链路故障（RLF））。响应于启动链路恢复，UE还可以访问新的信道或新的无线电接入技术（RAT）。网络可以具有控制UE是否可以发起链路恢复的能力。

54. 发明申请

US20110010726A1 METHOD AND APPARATUS FOR ASSIGNING PRIORITIES TO COMPOSITE EVENTS 失效
标题翻译：用于组合优先事项的方法和装置
公开(公告)号：US20110010726A1
公开(公告)日：2011-01-13
申请号：US12619504
申请日：2009-11-16
申请人： Pranav Dayal , Venugopal V. Veeravalli
发明人： Pranav Dayal , Venugopal V. Veeravalli
IPC分类号： G06F9/44
CPC分类号： H04W72/1215
摘要： Systems and methodologies are described herein that facilitate computation of composite priorities for composite events associated with a multi-radio wireless device. As described herein, respective priority values can be assigned to composite events (e.g., radio events associated with a plurality of distinct radios) in a variety of manners. Upon assignment of priority values, a radio coexistence manager and/or other suitable means can be utilized to selectively grant respective events from among a set of events that are identified within the same time period. In various examples described herein, priorities can be computed for composite events such that relative priorities of composite events are higher if the constituent atomic events of the composite events have higher priorities, such that the relative priority of a composite event is greater than the priority of any subset of its events, and/or according to any other suitable criteria.
摘要翻译：本文描述了促进与多无线电无线设备相关联的复合事件的复合优先级的计算的系统和方法。如本文所述，各种优先级值可以以各种方式分配给复合事件（例如，与多个不同无线电相关联的无线电事件）。在分配优先权值时，无线电共存管理器和/或其他合适的装置可以用于从相同时间段内识别的一组事件中选择性地授予相应的事件。在本文描述的各种示例中，可以为复合事件计算优先级，使得如果复合事件的组成原子事件具有较高优先级，则组合事件的相对优先级更高，使得复合事件的相对优先级大于其事件的任何子集，和/或根据任何其他合适的标准。

55. 发明申请

US20100091739A1 METHODS AND SYSTEMS FOR PRE-ALLOCATING A CQI CHANNEL DURING HANDOFF 审中-公开
标题翻译：用于在手机中预分配CQI信道的方法和系统
公开(公告)号：US20100091739A1
公开(公告)日：2010-04-15
申请号：US12560933
申请日：2009-09-16
申请人： Pranav Dayal , Mahesh Makhijani
发明人： Pranav Dayal , Mahesh Makhijani
IPC分类号： H04W4/00 , H04W36/00 , H04W72/00
CPC分类号： H04L1/0026 , H04W36/0044 , H04W72/0406
摘要： Methods and systems for improving handover performance by pre-negotiating channel quality information between a serving base station and a target base before a handoff is initiated in a wireless communication system are described. The target base station may send to the serving base station an assigned location within an uplink subframe for a mobile station requesting a handover to the target base station to transmit channel quality information to the target base station. The serving base station may send this information to the mobile station. The mobile station may transmit channel quality information to the target base station at the assigned location.
摘要翻译：描述了在无线通信系统中启动切换之前通过在服务基站和目标基站之间预先协商信道质量信息来改善切换性能的方法和系统。目标基站可向移动台向服务基站发送上行链路子帧内的分配位置，请求向目标基站进行切换以向目标基站发送信道质量信息。服务基站可以将该信息发送到移动台。移动台可以在分配的位置向目标基站发送信道质量信息。

56. 发明申请

US20100067599A1 MIMO PREAMBLE FOR INITIAL ACCESS WITH AN UNKNOWN NUMBER OF TRANSMIT ANTENNAS 有权
标题翻译：用于初始接入发射天线的MIMO前缀
公开(公告)号：US20100067599A1
公开(公告)日：2010-03-18
申请号：US12211861
申请日：2008-09-17
申请人： Pranav Dayal , Ayman Fawzy Naguib
发明人： Pranav Dayal , Ayman Fawzy Naguib
IPC分类号： H04B7/02
CPC分类号： H04B7/0667 , H04L27/261
摘要： For certain embodiments, a preamble sequence associated with a particular number of transmit antennas may allow a receiving mobile station to determine the number of transmit antennas used for transmission. The preamble sequence may be selected from one of a set of Constant Amplitude and Zero Auto Correlation (CAZAC) sequences corresponding to all of the supported number of transmit antennas. As a result, a receiving station may be able to determine the sequence sent by correlation and, thereby determine the number of antennas used for transmission. Given the number of transmit antennas, the mobile station may then perform MIMO channel estimation during initial synchronization to recover the channel taps between each transmit and each receive antenna.
摘要翻译：对于某些实施例，与特定数量的发射天线相关联的前同步码序列可以允许接收移动台确定用于传输的发射天线的数量。前导码序列可以从对应于所有支持的发射天线数量的一组恒定幅度和零自相关（CAZAC）序列之一中选择。结果，接收站可以能够确定通过相关发送的序列，从而确定用于传输的天线的数量。给定发射天线的数量，移动台然后可以在初始同步期间执行MIMO信道估计，以恢复每个发射天线和每个接收天线之间的信道抽头。

57. 发明申请

US20090225646A1 METHODS AND SYSTEMS FOR CHOOSING CYCLIC DELAYS IN MULTIPLE ANTENNA OFDM SYSTEMS 有权
标题翻译：用于在多个天线OFDM系统中选择循环延迟的方法和系统
公开(公告)号：US20090225646A1
公开(公告)日：2009-09-10
申请号：US12357935
申请日：2009-01-22
申请人： Pranav Dayal , Ayman Fawzy Naguib
发明人： Pranav Dayal , Ayman Fawzy Naguib
IPC分类号： H04J9/00 , H04K1/10 , H04J1/16
CPC分类号： H04B7/0671
摘要： Certain embodiments of the present disclosure relate to a method to determine appropriate values of cyclic delays applied at a transmitter with multiple antennas in order to provide accurate estimation of channel gains in a multiple-input single-output (MISO) system or multiple-input multiple-output (MIMO) system.
摘要翻译：本公开的某些实施例涉及一种确定在具有多个天线的发射机处应用的循环延迟的适当值的方法，以便提供多输入单输出（MISO）系统中的信道增益的准确估计或多输入多重输出（MIMO）系统。

58. 发明申请

US20080227386A1 PILOT TRANSMISSION BY RELAY STATIONS IN A MULTIHOP RELAY COMMUNICATION SYSTEM 有权
标题翻译：多中继通信系统中继电器的试点传输
公开(公告)号：US20080227386A1
公开(公告)日：2008-09-18
申请号：US12042864
申请日：2008-03-05
申请人： Pranav Dayal , Tingfang Ji
发明人： Pranav Dayal , Tingfang Ji
IPC分类号： H04B7/14
CPC分类号： H04L5/0048 , H04B7/15557 , H04L1/0003 , H04L1/0009 , H04L1/0026 , H04L1/0071 , H04L1/1867 , H04L5/0023 , H04L5/0028 , H04L5/0032 , H04L5/0094 , H04L25/0226 , H04L25/0228 , H04L27/2626 , H04L27/2647 , H04L2001/0097 , H04W48/08 , H04W48/12 , H04W84/047 , H04W88/04
摘要： Techniques to support multihop relay in a wireless communication system are described. In an aspect, a relay station receives data and a first pilot from an upstream station, e.g., a base station or another relay station. The relay station derives a channel estimate based on the first pilot and performs detection for the data based on the channel estimate. The relay station resends the data and sends a second pilot to a downstream station, e.g., a subscriber station or another relay station. Each pilot may be sent in accordance with a pilot format selected for that pilot. The first and second pilots may be sent using the same or different pilot formats. The relay station may receive channel information from the second station and may forward the channel information to the first station and/or select a rate for data transmission to the second station based on the channel information.
摘要翻译：描述了在无线通信系统中支持多跳中继的技术。在一方面，中继站从上游站（例如，基站或另一中继站）接收数据和第一导频。中继站基于第一导频导出信道估计，并且基于信道估计执行针对数据的检测。中继站重新发送数据，并向下游站（例如，用户站或另一个中继站）发送第二个导频。可以根据为该飞行员选择的飞行员格式发送每个飞行员。可以使用相同或不同的导频格式来发送第一和第二导频。中继站可以从第二站接收信道信息，并且可以基于信道信息将信道信息转发到第一站和/或选择用于数据传输到第二站的速率。

59. 发明授权

US09252862B2 MIMO preamble for initial access with an unknown number of transmit antennas 有权
标题翻译：用于具有未知数量的发射天线的初始接入的MIMO前导码
公开(公告)号：US09252862B2
公开(公告)日：2016-02-02
申请号：US12211861
申请日：2008-09-17
申请人： Pranav Dayal , Ayman Fawzy Naguib
发明人： Pranav Dayal , Ayman Fawzy Naguib
IPC分类号： H04B7/06 , H04L27/26
CPC分类号： H04B7/0667 , H04L27/261
摘要： For certain embodiments, a preamble sequence associated with a particular number of transmit antennas may allow a receiving mobile station to determine the number of transmit antennas used for transmission. The preamble sequence may be selected from one of a set of Constant Amplitude and Zero Auto Correlation (CAZAC) sequences corresponding to all of the supported number of transmit antennas. As a result, a receiving station may be able to determine the sequence sent by correlation and, thereby determine the number of antennas used for transmission. Given the number of transmit antennas, the mobile station may then perform MIMO channel estimation during initial synchronization to recover the channel taps between each transmit and each receive antenna.
摘要翻译：对于某些实施例，与特定数量的发射天线相关联的前同步码序列可以允许接收移动台确定用于传输的发射天线的数量。前导码序列可以从对应于所有支持的发射天线数量的一组恒定幅度和零自相关（CAZAC）序列之一中选择。结果，接收站可以能够确定通过相关发送的序列，从而确定用于传输的天线的数量。给定发射天线的数量，移动台然后可以在初始同步期间执行MIMO信道估计，以恢复每个发射天线和每个接收天线之间的信道抽头。

60. 发明授权

US08886245B2 Messaging scheme for controlling uplink transmit power of a wireless device 有权
标题翻译：用于控制无线设备的上行链路发射功率的消息传递方案
公开(公告)号：US08886245B2
公开(公告)日：2014-11-11
申请号：US12040343
申请日：2008-02-29
申请人： Pranav Dayal , Tingfang Ji
发明人： Pranav Dayal , Tingfang Ji
IPC分类号： H04B7/00 , H04W52/10 , H04W52/24 , H04W52/26 , H04W52/28
CPC分类号： H04W52/10 , H04W52/241 , H04W52/243 , H04W52/247 , H04W52/26 , H04W52/28
摘要： In a power control messaging scheme for wireless communication, a wireless node sends vectorized information to another wireless node that uses the information to control its transmit power. In some aspects, the vectorized information may relate to interference observed at a wireless node. In some aspects, the vectorized information may relate to power adjustment offsets. In some aspects, the information may be vectorized based on one or more of different quality of service classes, different assignments within a frame, different permutation zones, different channel differences, different locations of a wireless node, different channel types, different other sector interference values, and different assignment sizes. In some aspects, a wireless node transmits a power control message via an uplink map in an assignment message.
摘要翻译：在用于无线通信的功率控制消息传递方案中，无线节点将矢量化信息发送到使用该信息的另一无线节点来控制其发射功率。在一些方面，矢量化信息可以涉及在无线节点处观察到的干扰。在一些方面，矢量化信息可以涉及功率调整偏移。在一些方面，信息可以基于不同的服务质量类别，帧内的不同分配，不同的置换区域，不同的信道差异，无线节点的不同位置，不同的信道类型，不同的其他扇区干扰值和不同的分配大小。在一些方面，无线节点通过分配消息中的上行链路映射来发送功率控制消息。

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