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31. 发明授权

US09119132B2 Efficient system identification schemes for communication systems 有权
标题翻译：通信系统的高效系统识别方案
公开(公告)号：US09119132B2
公开(公告)日：2015-08-25
申请号：US12248303
申请日：2008-10-09
申请人： Tao Luo , Durga Prasad Malladi , Juan Montojo , Peter Gaal , Sandip Sarkar
发明人： Tao Luo , Durga Prasad Malladi , Juan Montojo , Peter Gaal , Sandip Sarkar
IPC分类号： H04J3/06 , H04W48/12 , H04J11/00 , H04L27/26
CPC分类号： H04W48/12 , H04J11/0069 , H04L27/2602 , H04W56/001
摘要： Systems and methodologies are described that facilitate efficiently indicating parameter(s) associated with a base station utilizing synchronization signals in a wireless communication environment. For instance, relative locations of a PSC and a SSC in a radio frame can be a function of a parameter. Further, a PSC sequence utilized to generate PSCs can be selected based upon a parameter. Moreover, inclusion or exclusion of PSCs from a radio frame can be a function of a parameter. Additionally or alternatively, pseudo random sequence mappings (e.g., to cell IDs, tone locations) can be a function of a parameter. Example parameters can be whether the base station is part of a TDD or a FDD system, whether the radio frame employs FS1 or FS2, whether the base station is associated with a macro or a femto cell, or whether the base station is associated with a unicast or a multicast system.
摘要翻译：描述了在无线通信环境中利用同步信号有助于有效地指示与基站相关联的参数的系统和方法。例如，无线电帧中的PSC和SSC的相对位置可以是参数的函数。此外，可以基于参数来选择用于生成PSC的PSC序列。此外，从无线电帧中包含或排除PSC可以是参数的函数。另外或替代地，伪随机序列映射（例如，到小区ID，音调位置）可以是参数的函数。示例性参数可以是基站是TDD或FDD系统的一部分，无线电帧是使用FS1还是FS2，基站是与宏还是毫微微小区相关联，还是基站是否与单播或多播系统。

32. 发明授权

US09083494B2 Efficient resource utilization in TDD 有权
标题翻译： TDD中的高效资源利用
公开(公告)号：US09083494B2
公开(公告)日：2015-07-14
申请号：US13069312
申请日：2011-03-22
申请人： Xiaoxia Zhang , Durga Prasad Malladi , Yongbin Wei , Tao Luo , Wanshi Chen
发明人： Xiaoxia Zhang , Durga Prasad Malladi , Yongbin Wei , Tao Luo , Wanshi Chen
IPC分类号： H04W72/00 , H04L5/00 , H04W72/04
CPC分类号： H04L5/0053 , H04L5/0007 , H04L5/0048 , H04W72/04 , H04W72/042
摘要： In a wireless communication system unused resource elements are utilized to transmit additional pilot and control signals. The additional pilot and control signals may mitigate the impact of interference. The unused resource elements may be in a downlink pilot timeslot (DwPTS) in a time division duplex system.
摘要翻译：在无线通信系统中，未使用的资源元件用于传输额外的导频和控制信号。额外的导频和控制信号可以减轻干扰的影响。未使用的资源元素可以在时分双工系统中的下行链路导频时隙（DwPTS）中。

33. 发明授权

US08687620B2 Fast cell search 有权
标题翻译：快速小区搜索
公开(公告)号：US08687620B2
公开(公告)日：2014-04-01
申请号：US13359018
申请日：2012-01-26
申请人： Durga Prasad Malladi , Byoung-Hoon Kim , Tao Luo
发明人： Durga Prasad Malladi , Byoung-Hoon Kim , Tao Luo
IPC分类号： H04J3/06
CPC分类号： H04W48/16 , H04J11/0069 , H04L27/2613 , H04L27/2655 , H04L27/2675
摘要： Systems and methodologies are described that facilitate searches for a cell in a wireless communication environment. A mobile device can employ a searcher that can detect timing information respectively associated with PSCs and cells to determine the cell with the highest correlation. The searcher can detect SSCs, which can include detecting associated phase information, to determine the SSC with the highest correlation, CP length, and/or other information to facilitate identifying a desired cell having the strongest signal to establish communication between the mobile device and the desired cell. PSCs respectively associated with cells can have different positions in the symbol sequences, and SSCs can respectively be phase shifted at different angles to facilitate detection and identification of a cell(s), where a PSC can be utilized as a phase reference by the associated SSC.
摘要翻译：描述了便于在无线通信环境中搜索小区的系统和方法。移动设备可以使用搜索器，其可以检测分别与PSC和小区相关联的定时信息，以确定具有最高相关性的小区。搜索器可以检测SSC，其可以包括检测相关联的相位信息，以确定具有最高相关性，CP长度和/或其他信息的SSC，以便于识别具有最强信号的期望小区，以建立移动设备与想要的细胞。分别与单元相关联的PSC可以在符号序列中具有不同的位置，并且SSC可以分别以不同的角度相移以促进单元的检测和识别，其中PSC可以被相关联的SSC用作相位参考。

34. 发明授权

US08665809B2 Systems and methods for sending power control information 有权
标题翻译：用于发送功率控制信息的系统和方法
公开(公告)号：US08665809B2
公开(公告)日：2014-03-04
申请号：US12815227
申请日：2010-06-14
申请人： Durga Prasad Malladi , Yongbin Wei , Tao Luo
发明人： Durga Prasad Malladi , Yongbin Wei , Tao Luo
IPC分类号： H04W52/02
CPC分类号： H04W52/58 , H04W52/146
摘要： Systems and methodologies are described that facilitate sending a power control command in a wireless communication environment. A base station can send a power control command to a UE through resource elements reserved for at least one Physical Downlink Control Channel (PDCCH). Thus, the power control command can be punctured into a control channel element (CCE) reserved for the at least one PDCCH. Further, the base station can convey an indicator that specifies the resource elements reserved for the at least one PDCCH used for sending the power control command to the UE. Moreover, the base station can use a structure similar to a conventional (e.g., Release 8, . . . ) PHICH structure for sending the power control command using the resource elements reserved for the at least one PDCCH. For example, the power control command can be spread using one or more Walsh codes assigned to the UE.
摘要翻译：描述了便于在无线通信环境中发送功率控制命令的系统和方法。基站可以通过为至少一个物理下行链路控制信道（PDCCH）保留的资源元素向UE发送功率控制命令。因此，功率控制命令可以被删截到为至少一个PDCCH保留的控制信道单元（CCE）中。此外，基站可以向UE发送指定用于向用于发送功率控制命令的至少一个PDCCH所保留的资源元素的指示符。此外，基站可以使用类似于常规（例如，版本8 ...）PHICH结构的结构，用于使用为至少一个PDCCH保留的资源元素来发送功率控制命令。例如，可以使用分配给UE的一个或多个沃尔什码扩展功率控制命令。

35. 发明授权

US08634403B2 Fast cell search 有权
公开(公告)号：US08634403B2
公开(公告)日：2014-01-21
申请号：US11972523
申请日：2008-01-10
申请人： Durga Prasad Malladi , Byoung-Hoon Kim , Tao Luo
发明人： Durga Prasad Malladi , Byoung-Hoon Kim , Tao Luo
IPC分类号： H04J3/06
CPC分类号： H04W48/16 , H04J11/0069 , H04L27/2613 , H04L27/2655 , H04L27/2675
摘要： Systems and methodologies are described that facilitate searches for a cell in a wireless communication environment. A mobile device can employ a searcher that can detect timing information respectively associated with PSCs and cells to determine the cell with the highest correlation. The searcher can detect SSCs, which can include detecting associated phase information, to determine the SSC with the highest correlation, CP length, and/or other information to facilitate identifying a desired cell having the strongest signal to establish communication between the mobile device and the desired cell. PSCs respectively associated with cells can have different positions in the symbol sequences, and SSCs can respectively be phase shifted at different angles to facilitate detection and identification of a cell(s), where a PSC can be utilized as a phase reference by the associated SSC.

36. 发明授权

US08538450B2 User equipment and base station behavior in response to an overload indicator 有权
标题翻译：用户设备和基站行为响应过载指示器
公开(公告)号：US08538450B2
公开(公告)日：2013-09-17
申请号：US12834604
申请日：2010-07-12
申请人： Xiaoxia Zhang , Durga Prasad Malladi , Tao Luo
发明人： Xiaoxia Zhang , Durga Prasad Malladi , Tao Luo
IPC分类号： H04W72/00
CPC分类号： H04W52/40 , H04W52/146
摘要： Systems and methodologies are described that facilitate responding to overload indicators in a wireless communication environment. A non-serving base station can send an over-the-air (OTA) overload indicator (OI) and a backhaul OI. A UE can receive the OTA OI from the non-serving base station, generate a report based upon the OTA OI, and send the report to a serving base station. The serving base station can receive the report from the UE, and generate a power control command for the UE based at least in part upon the report. Moreover, the serving base station can generate the power control command for the UE further based upon the backhaul OI received from the non-serving base station. For example, the UE can be configured to ignore the OTA OI. By way of another example, the serving base station can cause the non-serving base station to inhibit sending the backhaul OI.
摘要翻译：描述了在无线通信环境中有助于响应过载指示符的系统和方法。非服务基站可以发送空中（OTA）过载指示符（OI）和回程OI。 UE可以从非服务基站接收OTA OI，基于OTA OI生成报告，并将报告发送到服务基站。服务基站可以从UE接收报告，并且至少部分地基于报告生成针对UE的功率控制命令。此外，服务基站还可以基于从非服务基站接收的回程OI来生成用于UE的功率控制命令。例如，UE可以配置为忽略OTA OI。作为另一示例，服务基站可以使非服务基站禁止发送回程OI。

37. 发明授权

US08503364B2 Broadcast signaling L1 overload indication 失效
标题翻译：广播信令L1过载指示
公开(公告)号：US08503364B2
公开(公告)日：2013-08-06
申请号：US12834185
申请日：2010-07-12
申请人： Xiaoxia Zhang , Durga Prasad Malladi , Tao Luo
发明人： Xiaoxia Zhang , Durga Prasad Malladi , Tao Luo
IPC分类号： H04W4/00 , H04B15/00 , H04B7/00 , H04W84/04 , H04B1/10 , H04W52/24
CPC分类号： H04W84/04 , H04B1/1027 , H04W52/146 , H04W52/24 , H04W52/243 , H04W52/247 , H04W52/343
摘要： Devices and methods are provided for implementing an over-the-air (OTA) broadcast of an overload indication to reduce interference levels at neighboring node(s). In one embodiment, the method involves receiving the OTA broadcast of the overload indication from a neighboring node. The method further involves performing transmit power control based upon the received overload indication to reduce Interference over Thermal (IoT) noise at the neighboring node (e.g., by adjusting the transmit power spectral density). Such a method may be performed, for example, by an access terminal or a small base node.
摘要翻译：提供了用于实现过载指示的空中（OTA）广播以减少相邻节点处的干扰电平的装置和方法。在一个实施例中，该方法包括从相邻节点接收过载指示的OTA广播。该方法还涉及基于所接收的过载指示执行发射功率控制，以减少相邻节点处的干扰（IoT）噪声（例如，通过调整发射功率谱密度）。这样的方法可以例如由接入终端或小型基站节点执行。

38. 发明授权

US08493942B2 Interference cancellation in wireless communication 失效
标题翻译：无线通信中的干扰消除
公开(公告)号：US08493942B2
公开(公告)日：2013-07-23
申请号：US11492609
申请日：2006-07-24
申请人： Tao Luo , Durga Prasad Malladi , Sharad Deepak Sambhwani , Waleed M. Younis
发明人： Tao Luo , Durga Prasad Malladi , Sharad Deepak Sambhwani , Waleed M. Younis
IPC分类号： H04B7/216
CPC分类号： H04L25/0236 , H04B1/7107 , H04B2201/70701
摘要： Techniques for recovering transmissions on data and control channels with interference cancellation are described. A receiver derives a first interference estimate for a first channel based on a first channel estimate and cancels the first interference estimate from an input signal. The receiver thereafter derives a second interference estimate for the first channel based on a second channel estimate and cancels the second interference estimate in place of the first interference estimate from the input signal. The receiver may derive the first channel estimate based on pilot symbols and may derive the second channel estimate based on a correctly decoded packet. The second channel estimate may be of higher quality than the first channel estimate.
摘要翻译：描述了用于在具有干扰消除的数据和控制信道上恢复传输的技术。接收机基于第一信道估计导出第一信道的第一干扰估计，并从输入信号中消除第一干扰估计。接收机此后基于第二信道估计得出第一信道的第二干扰估计，并且从输入信号中取代第二干扰估计代替第一干扰估计。接收机可以基于导频符号导出第一信道估计，并且可以基于正确解码的分组导出第二信道估计。第二信道估计可以具有比第一信道估计更高的质量。

39. 发明申请

US20120213173A1 SYSTEM AND METHOD FOR THIRD-PARTY ASSISTED PEER-TO-PEER COMMUNICATION 有权
标题翻译：第三方协调对等通信的系统和方法
公开(公告)号：US20120213173A1
公开(公告)日：2012-08-23
申请号：US13401818
申请日：2012-02-21
申请人： Durga Prasad Malladi , Tao Luo , Yongbin Wei
发明人： Durga Prasad Malladi , Tao Luo , Yongbin Wei
IPC分类号： H04W72/04
CPC分类号： H04B7/15521
摘要： Techniques are provided for third-party assisted peer-to-peer (P2P) communication. For example, there is provided a method, operable by a network entity, that may involve receiving first information from a first mobile entity, the first information comprising a first message for a second mobile entity. The method may involve receiving second information from the second mobile entity, the second information comprising a second message for the first mobile entity. The method may further involve coding third information based at least in part on the first information and the second information, and sending the third information to the first and second mobile entities. The method may also involve transmitting a control signal that includes processing information for decoding the coded third information to extract the first message or the second message.
摘要翻译：提供技术用于第三方辅助点对点（P2P）通信。例如，提供了一种由网络实体操作的方法，其可以涉及从第一移动实体接收第一信息，第一信息包括用于第二移动实体的第一消息。该方法可以涉及从第二移动实体接收第二信息，第二信息包括第一移动实体的第二消息。该方法还可以包括至少部分地基于第一信息和第二信息来编码第三信息，以及将第三信息发送到第一和第二移动实体。该方法还可以涉及发送包括用于解码编码的第三信息的处理信息以提取第一消息或第二消息的控制信号。

40. 发明申请

US20120122446A1 FAST CELL SEARCH 有权
标题翻译：快速细胞搜索
公开(公告)号：US20120122446A1
公开(公告)日：2012-05-17
申请号：US13359018
申请日：2012-01-26
申请人： Durga Prasad Malladi , Byoung-Hoon Kim , Tao Luo
发明人： Durga Prasad Malladi , Byoung-Hoon Kim , Tao Luo
IPC分类号： H04W56/00
CPC分类号： H04W48/16 , H04J11/0069 , H04L27/2613 , H04L27/2655 , H04L27/2675
摘要： Systems and methodologies are described that facilitate searches for a cell in a wireless communication environment. A mobile device can employ a searcher that can detect timing information respectively associated with PSCs and cells to determine the cell with the highest correlation. The searcher can detect SSCs, which can include detecting associated phase information, to determine the SSC with the highest correlation, CP length, and/or other information to facilitate identifying a desired cell having the strongest signal to establish communication between the mobile device and the desired cell. PSCs respectively associated with cells can have different positions in the symbol sequences, and SSCs can respectively be phase shifted at different angles to facilitate detection and identification of a cell(s), where a PSC can be utilized as a phase reference by the associated SSC.
摘要翻译：描述了便于在无线通信环境中搜索小区的系统和方法。移动设备可以使用搜索器，其可以检测分别与PSC和小区相关联的定时信息，以确定具有最高相关性的小区。搜索器可以检测SSC，其可以包括检测相关联的相位信息，以确定具有最高相关性，CP长度和/或其他信息的SSC，以便于识别具有最强信号的期望小区，以建立移动设备与想要的细胞。分别与单元相关联的PSC可以在符号序列中具有不同的位置，并且SSC可以分别以不同的角度相移以促进单元的检测和识别，其中PSC可以被相关联的SSC用作相位参考。

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