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    Peer-to-peer communication with symmetric waveform for downlink and uplink
    21.
    发明授权
    Peer-to-peer communication with symmetric waveform for downlink and uplink 有权
    用于下行链路和上行链路的对等通信对等通信

    公开(公告)号：US08526347B2

    公开(公告)日：2013-09-03

    申请号：US13154645

    申请日：2011-06-07

    申请人： Renqiu Wang ,  Ravi Palanki ,  Naga Bhushan ,  Siddhartha Mallik

    发明人： Renqiu Wang ,  Ravi Palanki ,  Naga Bhushan ,  Siddhartha Mallik

    IPC分类号： G08C17/00 ,  H04W4/00

    CPC分类号： H04L1/1692 ,  H04L1/0031 ,  H04L5/0007 ,  H04L5/0048 ,  H04L5/0053 ,  H04L25/0224 ,  H04W76/14

    摘要： Techniques for supporting peer-to-peer (P2P) communication are disclosed. In an aspect, P2P communication may be supported with a symmetric waveform for a P2P downlink and a P2P uplink. In one design, a first UE generates a first signal based on a particular waveform (e.g., a downlink waveform or an uplink waveform for a wireless network) and transmits the first signal to a second UE for P2P communication. The first UE also receives a second signal generated by the second UE based on the particular waveform and transmitted to the first UE for P2P communication. In another aspect, a proximity detection signal may be transmitted in a portion of a subframe instead of the entire subframe. The remaining portion of the subframe may be used to transmit control information and/or other information to support P2P communication.

    摘要翻译： 披露了用于支持点对点（P2P）通信的技术。 在一方面，P2P通信可以以P2P下行链路和P2P上行链路的对称波形来支持。 在一种设计中，第一UE基于特定波形（例如，下行链路波形或无线网络的上行链路波形）生成第一信号，并将第一信号发送到第二UE进行P2P通信。 第一UE还基于特定波形接收由第二UE生成的第二信号，并发送给第一UE进行P2P通信。 另一方面，可以在子帧的一部分而不是整个子帧中发送接近检测信号。 子帧的剩余部分可以用于发送控制信息和/或其他信息以支持P2P通信。

    Signaling transmission with localized spreading for wireless communication
    22.
    发明授权
    Signaling transmission with localized spreading for wireless communication 有权
    用于无线通信的本地化扩展的信令传输

    公开(公告)号：US08457221B2

    公开(公告)日：2013-06-04

    申请号：US11852250

    申请日：2007-09-07

    申请人： Ravi Palanki ,  Siddhartha Mallik ,  Petru Cristian Budianu ,  Alexei Gorokhov

    发明人： Ravi Palanki ,  Siddhartha Mallik ,  Petru Cristian Budianu ,  Alexei Gorokhov

    IPC分类号： H04K1/10

    CPC分类号： H04L5/0053 ,  H04L1/1692 ,  H04L5/0007

    摘要： Techniques for transmitting signaling with localized spreading are described. In one design, a transmitter (e.g., a base station) spreads multiple signaling symbols to obtain multiple sets of output symbols and further maps the multiple sets of output symbols to multiple time frequency blocks. The spreading may be localized to each time frequency block. Prior to the spreading, the transmitter may scale the multiple signaling symbols with multiple gains determined based on the transmit power for these signaling symbols. The transmitter may scramble the scaled signaling symbols to obtain scrambled symbols and may spread the scrambled symbols to obtain the multiple sets of output symbols. The transmitter may map each set of output symbols to a respective time frequency block.

    摘要翻译： 描述了使用局部扩展发送信令的技术。 在一种设计中，发射机（例如，基站）扩展多个信令符号以获得多组输出符号，并将多组输出符号进一步映射到多个时间频率块。 扩展可以被定位到每个时间频率块。 在扩展之前，发射机可以根据这些信令符号的发射功率确定的多个增益来缩放多个信令符号。 发射机可以加密缩放的信令符号以获得加扰符号，并且可以扩展加扰符号以获得多组输出符号。 发射机可以将每组输出符号映射到相应的时间频率块。

    METHOD AND APPARATUS FOR SIGNALING SIDE INFORMATION FOR NETWORK CODING IN A WIRELESS COMMUNICATION NETWORK
    23.
    发明申请
    METHOD AND APPARATUS FOR SIGNALING SIDE INFORMATION FOR NETWORK CODING IN A WIRELESS COMMUNICATION NETWORK 审中-公开
    用于无线通信网络中网络编码的信号信号的方法和装置

    公开(公告)号：US20130058276A1

    公开(公告)日：2013-03-07

    申请号：US13604431

    申请日：2012-09-05

    申请人： Kiran K. Somasundaram ,  Stefan Brueck ,  Feng Xue ,  Christian Pietsch ,  Siddhartha Mallik

    发明人： Kiran K. Somasundaram ,  Stefan Brueck ,  Feng Xue ,  Christian Pietsch ,  Siddhartha Mallik

    IPC分类号： H04W4/18

    CPC分类号： H04L1/0076

    摘要： Techniques for efficiently sending side information to support network coding in a wireless network are disclosed. A node may send a subset of packet identifiers (IDs) for received packets in order to reduce signaling overhead in support of network coding operations. In one design, a node obtains a plurality of received packets, with each received packet being generated based on at least one base packet in a set of base packets. The node determines a reduced set of base packet IDs for the received packets. The reduced set may be a subset of an overall set including base packet IDs of all base packets for each of the received packets. The node sends information conveying the reduced set of base packet IDs, receives a network-coded packet generated based on the sent information, and recovers a base packet intended for the node based on the network-coded packet.

    摘要翻译： 公开了用于有效发送侧信息以支持无线网络中的网络编码的技术。 节点可以发送用于接收分组的分组标识符（ID）的子集，以减少支持网络编码操作的信令开销。 在一种设计中，节点获得多个接收的分组，其中每个接收分组基于一组基本分组中的至少一个基本分组来生成。 节点确定接收到的分组的基本分组ID的缩减集合。 缩减集可以是包括每个接收到的分组的所有基本分组的基本分组ID的整体集合的子集。 节点发送传送基本分组ID的缩减集的信息，接收基于所发送的信息生成的网络编码分组，并且基于网络编码分组恢复针对该节点的基本分组。

    PEER-TO-PEER / WAN ASSOCIATION CONTROL AND RESOURCE COORDINATION FOR MOBILE ENTITIES USING AGGREGATE NEIGHBORHOOD UTILITY METRICS
    25.
    发明申请
    PEER-TO-PEER / WAN ASSOCIATION CONTROL AND RESOURCE COORDINATION FOR MOBILE ENTITIES USING AGGREGATE NEIGHBORHOOD UTILITY METRICS 审中-公开
    移动通信使用聚合邻域实现度量的对等/广域网协调控制和资源协调

    公开(公告)号：US20120201158A1

    公开(公告)日：2012-08-09

    申请号：US13364271

    申请日：2012-02-01

    申请人： Stefan Geirhofer ,  Jaber Mohammad Borran ,  Anastasios Stamoulis ,  Siddhartha Mallik ,  Ravi Palanki ,  Naga Bhushan

    发明人： Stefan Geirhofer ,  Jaber Mohammad Borran ,  Anastasios Stamoulis ,  Siddhartha Mallik ,  Ravi Palanki ,  Naga Bhushan

    IPC分类号： H04W24/00 ,  H04W36/00

    CPC分类号： H04W52/383 ,  H04W76/14 ,  H04W84/18

    摘要： In a cellular wireless communication system, peer-to-peer (P2P) links between mobile devices are implemented, and controlled using an aggregate utility metric for a group of P2P and cellular links. A mobile node participating in a P2P link, or an eNB, may periodically broadcast an activity level indicator indicating a resource-dependent activity level of the link. The node may control the activity level in response to utility metrics received from members of neighboring P2P links to maximize an aggregate utility of the link and the neighboring P2P links sharing at least a subset of resources of a common frequency spectrum. Formation or termination of P2P links may be controlled in response to comparing a calculated achievable utility value to a current utility value of a link, and taking action calculated to maximize the aggregate utility value.

    摘要翻译： 在蜂窝无线通信系统中，实现移动设备之间的对等（P2P）链路，并且使用用于一组P2P和蜂窝链路的聚合效用度量进行控制。 参与P2P链路的移动节点或eNB可以周期地广播指示链路的资源依赖活动级别的活动级别指示符。 节点可以响应于从相邻P2P链路的成员接收到的效用度量来控制活动水平，以最大化链路的聚合效用和共享共同频谱的资源的至少一个子集的相邻P2P链路。 可以响应于将计算的可实现效用值与链路的当前效用值进行比较，并且采取计算以最大化总效用值的动作来控制P2P链接的形成或终止。

    SCALABLE QUANTIZATION OF CHANNEL STATE INFORMATION FOR MIMO TRANSMISSION
    26.
    发明申请
    SCALABLE QUANTIZATION OF CHANNEL STATE INFORMATION FOR MIMO TRANSMISSION 有权
    用于MIMO传输的信道状态信息的可定量定量

    公开(公告)号：US20110244847A1

    公开(公告)日：2011-10-06

    申请号：US12893610

    申请日：2010-09-29

    申请人： Siddhartha Mallik ,  Alexei Yurievitch Gorokhov ,  Wooseok Nam

    发明人： Siddhartha Mallik ,  Alexei Yurievitch Gorokhov ,  Wooseok Nam

    IPC分类号： H04W4/00

    CPC分类号： H04B7/0626 ,  H04B7/024 ,  H04B7/0639 ,  H04B7/0645 ,  H04B7/0658

    摘要： Techniques for reporting channel state information (CSI) are described. A user equipment (UE) may receive data transmission from one or more cells among a plurality of cells and may report CSI for each of the plurality of cells. In an aspect, the UE may generate CSI with different quantization granularity (e.g., different codebook sizes), or different frequency granularity (e.g., different subband sizes), and/or different time granularity (e.g., different reporting intervals) for different cells based on the performance impact of each cell for data transmission to the UE. The performance impact of each cell may be determined based on a long-term channel gain or received power of the cell at the UE. The UE may quantize the CSI for each cell based on the codebook size for the cell. The UE may generate the CSI for each cell based on the subband size and/or the reporting interval for the cell.

    摘要翻译： 描述用于报告信道状态信息（CSI）的技术。 用户设备（UE）可以从多个小区中的一个或多个小区接收数据传输，并且可以为多个小区中的每个小区报告CSI。 在一方面，UE可以以不同的基于小区的不同的量化粒度（例如，不同的码本大小）或不同的频率粒度（例如，不同的子带大小）和/或不同的时间粒度（例如，不同的报告间隔）生成CSI 关于每个小区对UE的数据传输的性能影响。 可以基于UE处的小区的长期信道增益或接收功率来确定每个小区的性能影响。 UE可以基于小区的码本大小量化每个小区的CSI。 UE可以基于小区的子带大小和/或报告间隔来生成每个小区的CSI。

    METHOD AND APPARATUS FOR CHANNEL ESTIMATION USING MULTIPLE DESCRIPTION CODES
    28.
    发明申请
    METHOD AND APPARATUS FOR CHANNEL ESTIMATION USING MULTIPLE DESCRIPTION CODES 有权
    使用多种描述码的信道估计的方法和装置

    公开(公告)号：US20100172256A1

    公开(公告)日：2010-07-08

    申请号：US12620141

    申请日：2009-11-17

    申请人： Siddhartha Mallik ,  Alexei Gorokhov

    发明人： Siddhartha Mallik ,  Alexei Gorokhov

    IPC分类号： H04L12/26

    CPC分类号： H04L1/0035 ,  H04B7/0417 ,  H04B7/0626 ,  H04B7/0639 ,  H04L25/0242

    摘要： Techniques for using multiple description codes (MDC) for channel feedback to improve channel estimation accuracy are described. A receiver may obtain an initial/measured channel vector for a communication channel. The receiver may select a codebook in a set of codebooks for quantizing the initial channel vector. Each codebook may include a different set of channel vectors/codewords. Different codebooks may be selected in different reporting intervals. The receiver may select a channel vector in the selected codebook, and the selected channel vector may have (i) a largest correlation with a normalized channel vector or (ii) a smallest distance to the initial channel vector. The receiver may send the selected channel vector and possibly the selected codebook to a transmitter. The transmitter may receive the selected/reported channel vectors from the receiver in different reporting intervals and may derive a final channel vector for the communication channel based on the reported channel vectors.

    摘要翻译： 描述了使用多个描述码（MDC）进行信道反馈以提高信道估计精度的技术。 接收机可以获得通信信道的初始/测量信道向量。 接收机可以在一组码本中选择用于量化初始信道向量的码本。 每个码本可以包括不同的信道向量/码字集合。 可以在不同的报告间隔中选择不同的码本。 接收机可以选择所选码本中的信道向量，并且所选择的信道向量可以具有（i）与归一化信道向量的最大相关性或（ii）到初始信道向量的最小距离。 接收机可以将所选择的信道向量和可能的所选码本发送到发射机。 发射机可以在不同的报告间隔中从接收机接收所选/报告的信道向量，并且可以基于报告的信道向量导出通信信道的最终信道向量。