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1. 发明申请

US20120263134A1 METHODS AND SYSTEMS FOR PDCCH BLIND DECODING IN MOBILE COMMUNICATIONS 失效
标题翻译：用于移动通信中的PDCCH盲解码的方法和系统
公开(公告)号：US20120263134A1
公开(公告)日：2012-10-18
申请号：US13529900
申请日：2012-06-21
申请人： Durga Prasad Malladi , Juan Montojo , Sandip Sarkar
发明人： Durga Prasad Malladi , Juan Montojo , Sandip Sarkar
IPC分类号： H04W72/04
CPC分类号： H04L1/0038 , H04W72/042
摘要： Various methods and systems for efficiently performing the blind decoding of downlink signals is described. Several forms of arranging possible CCE combinations are examined and investigated. Based on PDCCH size estimation/information, CCE concatenations that are most likely (of limited sets) can be arrived at. Tree-based concatenations are also devised using largest CCE ordering to align smaller CCE sizes to similar boundaries. By such ordering, the search space for all possible CCE ordering and sizes can be reduced to an efficient tree. Set mapping between possible lnposelstartCCElnposelend/REs are also described using a first set to secondary and tertiary sets. Various other ordering and sorting schemes are also detailed that enable a blind decode of a PDCCH channel to be efficiently performed.
摘要翻译：描述了用于有效地执行下行链路信号的盲解码的各种方法和系统。对可能的CCE组合的几种形式进行了调查和调查。基于PDCCH大小估计/信息，可以得出最有可能（有限集合）的CCE级联。还设计了基于树的级联，使用最大的CCE排序来将较小的CCE大小对准到相似的边界。通过这样的排序，所有可能的CCE排序和大小的搜索空间可以减少到一个有效的树。也可以使用第一组到第二组和第三组来描述可能的lnposelstartCCElnposelend / RE之间的映射。还详细描述了能够有效执行PDCCH信道的盲解码的各种其他排序和排序方案。

2. 发明申请

US20090129259A1 CODING AND MULTIPLEXING OF CONTROL INFORMATION IN A WIRELESS COMMUNICATION SYSTEM 有权
标题翻译：无线通信系统中控制信息的编码和多路复用
公开(公告)号：US20090129259A1
公开(公告)日：2009-05-21
申请号：US12190461
申请日：2008-08-12
申请人： Durga Prasad Malladi , Byoung-Hoon Kim , Juan Montojo , Sandip Sarkar
发明人： Durga Prasad Malladi , Byoung-Hoon Kim , Juan Montojo , Sandip Sarkar
IPC分类号： H04J11/00 , H04J3/00
CPC分类号： H04J11/00 , H04B7/0417 , H04L1/0026 , H04L1/0028 , H04L1/0057 , H04L1/0072 , H04L1/1607 , H04L1/1671 , H04L1/1812 , H04L1/1822 , H04L5/0007 , H04L5/0053 , H04L5/0064 , H04L5/0091
摘要： Techniques for sending control information in a wireless communication system are described. In an aspect, a UE spreads control information across frequency with a DFT and across time with an orthogonal sequence to obtain output data for the control information. In one design, the UE receives codewords for N HARQ processes in N downlink subframes, determines an ACK value for each HARQ process, codes N ACK values for the N HARQ processes to obtain ACK information, generates output data for the ACK information, and sends the output data in one of M uplink subframes. In another aspect, first control information is processed based on a first coding and multiplexing scheme utilizing code division multiplexing in time and frequency domains. Second control information is processed based on a second coding and multiplexing scheme utilizing code division multiplexing in time domain and spreading in frequency domain.
摘要翻译：描述用于在无线通信系统中发送控制信息的技术。在一方面，UE以DFT和跨越时间的正交序列跨频率扩展控制信息，以获得控制信息的输出数据。在一种设计中，UE在N个下行链路子帧中接收N个HARQ进程的码字，确定每个HARQ进程的ACK值，对N个HARQ进程的N个ACK值进行编码以获得ACK信息，生成ACK信息的输出数据，并发送 M个上行链路子帧之一的输出数据。在另一方面，基于利用时域和频域中的码分复用的第一编码和复用方案处理第一控制信息。基于利用时域中的码分复用的第二编码和复用方案来处理第二控制信息，并在频域上扩展。

3. 发明申请

US20090046570A1 EIGEN-BEAMFORMING FOR WIRELESS COMMUNICATION SYSTEMS 有权
标题翻译：用于无线通信系统的EIGEN-BEAMFORMING
公开(公告)号：US20090046570A1
公开(公告)日：2009-02-19
申请号：US12189483
申请日：2008-08-11
申请人： Sandip Sarkar , Byoung-Hoon Kim , Durga Prasad Malladi , Juan Montojo
发明人： Sandip Sarkar , Byoung-Hoon Kim , Durga Prasad Malladi , Juan Montojo
IPC分类号： H04J11/00
CPC分类号： H04B7/0417 , H04B7/0434 , H04B7/063 , H04B7/0632 , H04L5/14 , H04L25/0204 , H04L25/0228 , H04L25/0242 , H04L25/03343 , H04L2025/03426 , H04L2025/03802
摘要： Techniques for sending multiple-input multiple-output (MIMO) transmissions in wireless communication systems are described. In one design, a transmitter sends a first reference signal via a first link, e.g., a cell-specific reference signal via the downlink. The transmitter receives channel quality indicator (CQI) information determined by a receiver based on the first reference signal. The transmitter also receives a second reference signal from the receiver via a second link, e.g., a sounding reference signal via the uplink. The transmitter obtains at least one MIMO channel matrix for the first link based on the second reference signal. The transmitter determines at least one precoding matrix based on the at least one MIMO channel matrix, e.g., in accordance with ideal eigen-beamforming or pseudo eigen-beamforming. The transmitter then sends a data transmission to the receiver based on the at least one precoding matrix and the CQI information.
摘要翻译：描述了在无线通信系统中发送多输入多输出（MIMO）传输的技术。在一种设计中，发射机经由第一链路发送第一参考信号，例如经由下行链路的小区特定参考信号。发射机基于第一参考信号接收由接收机确定的信道质量指示符（CQI）信息。发射机还经由第二链路从接收机接收第二参考信号，例如经由上行链路的探测参考信号。发射机基于第二参考信号获得用于第一链路的至少一个MIMO信道矩阵。发射机基于至少一个MIMO信道矩阵来确定至少一个预编码矩阵，例如，根据理想的本征波束形成或伪特征波束形成。然后，发射机基于至少一个预编码矩阵和CQI信息向接收机发送数据传输。

4. 发明授权

US08014265B2 Eigen-beamforming for wireless communication systems 有权
标题翻译：无线通信系统的特征波束成形
公开(公告)号：US08014265B2
公开(公告)日：2011-09-06
申请号：US12189483
申请日：2008-08-11
申请人： Sandip Sarkar , Byoung-Hoon Kim , Durga Prasad Malladi , Juan Montojo
发明人： Sandip Sarkar , Byoung-Hoon Kim , Durga Prasad Malladi , Juan Montojo
IPC分类号： H04W4/00
CPC分类号： H04B7/0417 , H04B7/0434 , H04B7/063 , H04B7/0632 , H04L5/14 , H04L25/0204 , H04L25/0228 , H04L25/0242 , H04L25/03343 , H04L2025/03426 , H04L2025/03802
摘要： Techniques for sending multiple-input multiple-output (MIMO) transmissions in wireless communication systems are described. In one design, a transmitter sends a first reference signal via a first link, e.g., a cell-specific reference signal via the downlink. The transmitter receives channel quality indicator (CQI) information determined by a receiver based on the first reference signal. The transmitter also receives a second reference signal from the receiver via a second link, e.g., a sounding reference signal via the uplink. The transmitter obtains at least one MIMO channel matrix for the first link based on the second reference signal. The transmitter determines at least one precoding matrix based on the at least one MIMO channel matrix, e.g., in accordance with ideal eigen-beamforming or pseudo eigen-beamforming. The transmitter then sends a data transmission to the receiver based on the at least one precoding matrix and the CQI information.
摘要翻译：描述了在无线通信系统中发送多输入多输出（MIMO）传输的技术。在一种设计中，发射机经由第一链路发送第一参考信号，例如经由下行链路的小区特定参考信号。发射机基于第一参考信号接收由接收机确定的信道质量指示符（CQI）信息。发射机还经由第二链路从接收机接收第二参考信号，例如经由上行链路的探测参考信号。发射机基于第二参考信号获得用于第一链路的至少一个MIMO信道矩阵。发射机基于至少一个MIMO信道矩阵来确定至少一个预编码矩阵，例如，根据理想的本征波束形成或伪特征波束形成。然后，发射机基于至少一个预编码矩阵和CQI信息向接收机发送数据传输。

5. 发明授权

US08009617B2 Beamforming of control information in a wireless communication system 有权
标题翻译：无线通信系统中控制信息的波束成形
公开(公告)号：US08009617B2
公开(公告)日：2011-08-30
申请号：US12189548
申请日：2008-08-11
申请人： Sandip Sarkar , Byoung-Hoon Kim , Durga Prasad Malladi , Juan Montojo
发明人： Sandip Sarkar , Byoung-Hoon Kim , Durga Prasad Malladi , Juan Montojo
IPC分类号： H04W4/00
CPC分类号： H04B7/043 , H04L1/0003 , H04L1/0009 , H04L1/0026 , H04L5/0023 , H04L5/0053 , H04L25/03343 , H04L2025/03426 , H04L2025/03802
摘要： Techniques for sending traffic data and control information in a wireless communication system are described. In one design, a transmitter (e.g., a Node B or a UE) may perform beamforming to send traffic data on M layers based on a precoding matrix, where M may be one or greater. The transmitter may also perform beamforming to send control information on up to M layers based on the same precoding matrix used for the traffic data. The transmitter may send the beamformed traffic data on a first physical channel and may send the beamformed control information on a second physical channel. The transmitter may multiplex the beamformed traffic data and the beamformed control information using time division multiplexing (TDM) or frequency division multiplexing (FDM).
摘要翻译：描述用于在无线通信系统中发送业务数据和控制信息的技术。在一种设计中，发射机（例如，节点B或UE）可以基于预编码矩阵来执行波束成形以在M层上发送业务数据，其中M可以是一个或更多个。发射机还可以基于用于业务数据的相同预编码矩阵来执行波束成形以发送多达M个层的控制信息。发射机可以在第一物理信道上发送波束形成的业务数据，并且可以在第二物理信道上发送波束形成的控制信息。发射机可以使用时分复用（TDM）或频分复用（FDM）来复用波束形成的业务数据和波束形成的控制信息。

6. 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。

7. 发明授权

US08238475B2 Methods and systems for PDCCH blind decoding in mobile communications 有权
标题翻译：移动通信中PDCCH盲解码的方法和系统
公开(公告)号：US08238475B2
公开(公告)日：2012-08-07
申请号：US12259798
申请日：2008-10-28
申请人： Durga Prasad Malladi , Juan Montojo , Sandip Sarkar
发明人： Durga Prasad Malladi , Juan Montojo , Sandip Sarkar
IPC分类号： H04L27/00
CPC分类号： H04L1/0038 , H04W72/042
摘要： Various methods and systems for efficiently performing the blind decoding of downlink signals is described. Several forms of arranging possible CCE combinations are examined and investigated. Based on PDCCH size estimation/information, CCE concatenations that are most likely (of limited sets) can be arrived at. Tree-based concatenations are also devised using largest CCE ordering to align smaller CCE sizes to similar boundaries. By such ordering, the search space for all possible CCE ordering and sizes can be reduced to an efficient tree. Set mapping between possible lnposelstartCCElnposelend/REs are also described using a first set to secondary and tertiary sets. Various other ordering and sorting schemes are also detailed that enable a blind decode of a PDCCH channel to be efficiently performed.
摘要翻译：描述了用于有效地执行下行链路信号的盲解码的各种方法和系统。对可能的CCE组合的几种形式进行了调查和调查。基于PDCCH大小估计/信息，可以得出最有可能（有限集合）的CCE级联。还设计了基于树的级联，使用最大的CCE排序来将较小的CCE大小对准到类似的边界。通过这样的排序，所有可能的CCE排序和大小的搜索空间可以减少到一个有效的树。也可以使用第一组到第二组和第三组来描述可能的lnposelstartCCElnposelend / RE之间的映射。还详细描述了能够有效执行PDCCH信道的盲解码的各种其他排序和排序方案。

8. 发明申请

US20090143072A1 CONTROL ARRANGEMENT AND METHOD FOR COMMUNICATING PAGING MESSAGES IN A WIRELESS COMMUNICATION SYSTEM 有权
标题翻译：无线通信系统中通信消息的控制布置和方法
公开(公告)号：US20090143072A1
公开(公告)日：2009-06-04
申请号：US12259809
申请日：2008-10-28
申请人： Juan Montojo , Byoung-Hoon Kim , Durga Prasad Malladi , Sandip Sarkar
发明人： Juan Montojo , Byoung-Hoon Kim , Durga Prasad Malladi , Sandip Sarkar
IPC分类号： H04W72/04 , H04W68/00
CPC分类号： H04W68/02 , H04W68/025
摘要： Systems and methods for utilizing paging group IDs and paging indicators are disclosed for PDCCH and PDSCH transmissions to mobile terminals in a mobile communication system. By use of the paging group IDs and paging indicators, various groups of mobile terminals, including subsets of those groups can be paged with reduced decoding requirements. Nesting of the grouping is exploited and packing of the PDCCH frame to accomplish efficient use is described.
摘要翻译：公开了用于移动通信系统中用于移动终端的PDCCH和PDSCH传输的用于使用寻呼组ID和寻呼指示符的系统和方法。通过使用寻呼组ID和寻呼指示符，可以以降低的解码要求对包括这些组的子集的各种移动终端进行寻呼。描述了分组的嵌套和PDCCH帧的打包以实现有效的使用。

9. 发明申请

US20090054093A1 ANTENNA SWITCHING AND UPLINK SOUNDING CHANNEL MEASUREMENT 有权
标题翻译：天线切换和上行链路通道测量
公开(公告)号：US20090054093A1
公开(公告)日：2009-02-26
申请号：US12190386
申请日：2008-08-12
申请人： Byoung-Hoon Kim , Durga Prasad Malladi , Juan Montojo , Sandip Sarkar
发明人： Byoung-Hoon Kim , Durga Prasad Malladi , Juan Montojo , Sandip Sarkar
IPC分类号： H04B7/00
CPC分类号： H04L25/0208 , H04B7/061 , H04L1/0026 , H04L1/0693 , H04L25/0224
摘要： Systems and methodologies are described that facilitate employing downlink precoding based on uplink sounding channel measurement and channel reciprocity in time division duplex or time division multiplex systems. In particular, mechanism are provided that enable downlink precoding in situations where user equipment antenna configuration includes an unequal number of transmit chains and receive chains. A mobile device transmits modulated sounding reference signals on each antenna during a calibration stage. The mobile device then transmits non-modulated sounding reference signals during a normal mode. A base station utilizes the modulated and non-modulated sounding reference signals to restore a downlink channel estimate employed in downlink precoding.
摘要翻译：描述了有助于在时分双工或时分复用系统中基于上行链路探测信道测量和信道互易性采用下行链路预编码的系统和方法。特别地，提供了在用户设备天线配置包括不等数量的发射链和接收链的情况下实现下行链路预编码的机制。移动设备在校准阶段期间在每个天线上发送调制的探测参考信号。移动设备然后在正常模式期间发送未调制的探测参考信号。基站利用调制和未调制的探测参考信号来恢复在下行链路预编码中采用的下行链路信道估计。

10. 发明授权

US08681906B2 Methods and systems for PDCCH blind decoding in mobile communications 失效
标题翻译：移动通信中PDCCH盲解码的方法和系统
公开(公告)号：US08681906B2
公开(公告)日：2014-03-25
申请号：US13529900
申请日：2012-06-21
申请人： Durga Prasad Malladi , Juan Montojo , Sandip Sarkar
发明人： Durga Prasad Malladi , Juan Montojo , Sandip Sarkar
IPC分类号： H04L27/06
CPC分类号： H04L1/0038 , H04W72/042
摘要： Various methods and systems for efficiently performing the blind decoding of downlink signals is described. Several forms of arranging possible CCE combinations are examined and investigated. Based on PDCCH size estimation/information, CCE concatenations that are most likely (of limited sets) can be arrived at. Tree-based concatenations are also devised using largest CCE ordering to align smaller CCE sizes to similar boundaries. By such ordering, the search space for all possible CCE ordering and sizes can be reduced to an efficient tree. Set mapping between possible lnposelstartCCElnposelend/REs are also described using a first set to secondary and tertiary sets. Various other ordering and sorting schemes are also detailed that enable a blind decode of a PDCCH channel to be efficiently performed.
摘要翻译：描述了用于有效地执行下行链路信号的盲解码的各种方法和系统。对可能的CCE组合的几种形式进行了调查和调查。基于PDCCH大小估计/信息，可以得出最有可能（有限集合）的CCE级联。还设计了基于树的级联，使用最大的CCE排序来将较小的CCE大小对准到类似的边界。通过这样的排序，所有可能的CCE排序和大小的搜索空间可以减少到一个有效的树。也可以使用第一组到第二组和第三组来描述可能的lnposelstartCCElnposelend / RE之间的映射。还详细描述了能够有效执行PDCCH信道的盲解码的各种其他排序和排序方案。

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