Robust decoding of CoMP transmissions
    71.
    发明授权
    Robust decoding of CoMP transmissions 有权
    CoMP传输的稳健解码

    公开(公告)号:US08923216B2

    公开(公告)日:2014-12-30

    申请号:US12846640

    申请日:2010-07-29

    CPC分类号: H04B7/024 H04B7/0413

    摘要: Techniques for transmitting data and resource signals (RS) are provided. According to certain aspects, an access point may determine RS resource locations related to one or more access points in a CoMP set transmitting a common reference signal (CRS), map data transmissions initially over resources other than those related to the RS resource locations, and map remaining data transmissions over resources related to the RS resource locations. According to certain aspects, a wireless device may receive a signal from access points in a coordinated multiple point (CoMP) communication set comprising a common reference signal (CRS) superimposed over data, determine CRS locations in the signal that correspond to the CRS, and decode data from the signal based at least in part on the determined CRS locations.

    摘要翻译: 提供了用于发送数据和资源信号(RS)的技术。 根据某些方面,接入点可以确定与传送公共参考信号(CRS)的CoMP集合中的一个或多个接入点相关的RS资源位置,最初通过与所述RS资源位置相关的资源进行映射数据传输;以及 通过与RS资源位置相关的资源来映射剩余的数据传输。 根据某些方面,无线设备可以从包括叠加在数据上的公共参考信号(CRS)的协调多点(CoMP)通信集合中的接入点接收信号,确定对应于CRS的信号中的CRS位置,以及 至少部分地基于所确定的CRS位置从所述信号解码数据。

    Method and system for reduction of decoding complexity in a communication system
    73.
    发明授权
    Method and system for reduction of decoding complexity in a communication system 有权
    用于降低通信系统中的解码复杂度的方法和系统

    公开(公告)号:US08730999B2

    公开(公告)日:2014-05-20

    申请号:US12818946

    申请日:2010-06-18

    IPC分类号: H04J3/24

    摘要: Method and System for Utilization of an Outer Decoder in a Broadcast Services Communication System is described. Information to be transmitted is provided to a systematic portion of a plurality of transmit buffers and encoded by an outer decoder communicatively coupled to the transmit buffer. The resulting redundant bits are provided to a parity portion of each transmit buffer. The content of the transmit buffers, is multiplexed and encoded by an inner decoder to improve protection by adding redundancy. The receiving station recovers the transmitted information by an inverse process. Because a decoding complexity depends on the size of a systematic portion of the transmit buffer, reasoned compromise between a systematic portion size and number of transmit buffers yields decreased decoding complexity.

    摘要翻译: 描述了在广播服务通信系统中利用外部解码器的方法和系统。 要发送的信息被提供给多个发送缓冲器的系统部分,并且由通信地耦合到发送缓冲器的外部解码器编码。 所产生的冗余比特被提供给每个发送缓冲器的奇偶校验部分。 发送缓冲器的内容被内部解码器复用和编码,以通过增加冗余来改善保护。 接收站通过反向处理恢复发送的信息。 由于解码复杂度取决于发射缓冲器的系统部分的大小,系统部分大小与发射缓冲器数量之间的合理折中产生降低的解码复杂度。

    Turbo interleaver for high data rates
    75.
    发明授权
    Turbo interleaver for high data rates 失效
    Turbo交织器,用于高数据速率

    公开(公告)号:US08583983B2

    公开(公告)日:2013-11-12

    申请号:US12443975

    申请日:2007-11-01

    IPC分类号: H03M13/00

    摘要: Techniques for supporting high decoding throughput are described. A transmitter may encode a code block of data bits with a Turbo encoder. A receiver may perform decoding for the code block with a Turbo decoder having multiple soft-input soft-output (SISO) decoders. A contention-free Turbo interleaver may be used if the code block size is larger than a threshold size. A regular Turbo interleaver may be used if the code block size is equal to or smaller than the threshold size. The contention-free Turbo interleaver reorders the data bits in the code block such that information from the multiple SISO decoders, after interleaving or deinterleaving, can be written in parallel to multiple storage units in each write cycle without encountering memory access contention. The regular Turbo interleaver can reorder the data bits in the code block in any manner without regard to contention-free memory access.

    摘要翻译: 描述了用于支持高解码吞吐量的技术。 发射机可以使用Turbo编码器对数据位的码块进行编码。 接收机可以使用具有多个软输入软输出(SISO)解码器的Turbo解码器来对码块执行解码。 如果码块大小大于阈值大小,则可以使用无竞争的Turbo交织器。 如果码块大小等于或小于阈值大小,则可以使用常规Turbo交织器。 无竞争的Turbo交织器重新排序代码块中的数据位,使得来自多个SISO解码器的信息在交织或解交织之后可以在每个写周期中并行写入多个存储单元,而不会遇到存储器访问争用。 正常的Turbo交织器可以以任何方式重新排序代码块中的数据位,而不考虑无竞争的存储器访问。

    System and method for overload indication
    76.
    发明授权
    System and method for overload indication 有权
    过载指示系统和方法

    公开(公告)号:US08571594B2

    公开(公告)日:2013-10-29

    申请号:US12846608

    申请日:2010-07-29

    IPC分类号: H04B7/00

    CPC分类号: H04W52/243 H04W52/343

    摘要: Devices and methods are provided for transmit power control in a wireless communication environment. In one embodiment, the method may involve measuring an interference amount over at least one of a sub-band and a full bandwidth. The method may involve assigning a level to the measured interference amount, the level comprising one of an overloaded level and an underloaded level. The method may involve encoding the level as an overload indicator, the overload indicator being conditioned on the sub-band such that the overload indicator includes enhanced layer symbols regarding the level of the measured interference amount. The method may involve conveying the overload indicator to at least one mobile device.

    摘要翻译: 提供了用于无线通信环境中的发射功率控制的装置和方法。 在一个实施例中,该方法可以涉及通过子带和全带宽中的至少一个来测量干扰量。 该方法可以包括将水平分配给所测量的干扰量,所述水平包括过载水平和欠载水平之一。 该方法可以包括将电平编码为过载指示符,过载指示器在子带上进行调节,使得过载指示符包括关于所测量的干扰量的电平的增强层符号。 该方法可以包括将过载指示器传送到至少一个移动设备。

    CHANNEL STATE INFORMATION COMPUTATION FOR ENHANCED INTER-CELL INTERFERENCE COORDINATION
    77.
    发明申请
    CHANNEL STATE INFORMATION COMPUTATION FOR ENHANCED INTER-CELL INTERFERENCE COORDINATION 审中-公开
    通道状态信息计算,用于增强细胞间干扰协调

    公开(公告)号:US20130114441A1

    公开(公告)日:2013-05-09

    申请号:US13608891

    申请日:2012-09-10

    IPC分类号: H04W24/00

    摘要: A delayed channel estimation is a channel state information (CSI) reference subframe having an index (NCSI—ref) belonging to NCSI—ref=N−4−k, where N is the subframe index on which the CSI is to be transmitted on an uplink, and k is the smallest value of k>=0, such that N−4−k belongs to a given configuration set. When k is too large, the selected CSI reference subframe is too outdated to produce accurate CSI. An undelayed channel estimation is a CSI reference subframe having an index (NCSI—ref) belonging to NCSI—ref=N−4. When the CSI reference subframe N−4 does not belong to the given subframe restriction subset, the selected channel estimate may be too noisy to produce accurate CSI. A method for CSI computation for enhanced inter-cell interference coordination (eICIC) selects between a delayed channel estimation and an undelayed channel estimation for computing CSI, for example, based on a signal metric. The CSI is computed with a selected channel estimation.

    摘要翻译: 延迟信道估计是具有属于NCSI-ref = N-4-k的索引(NCSI-ref)的信道状态信息(CSI)参考子帧,其中N是要在其上发送CSI的子帧索引 上行链路,k是k> = 0的最小值,使得N-4-k属于给定的配置集合。 当k太大时,所选择的CSI参考子帧太过时,不能产生准确的CSI。 未延迟的信道估计是具有属于NCSI-ref = N-4的索引(NCSI-ref)的CSI参考子帧。 当CSI参考子帧N-4不属于给定子帧限制子集时,所选择的信道估计可能太嘈杂以产生准确的CSI。 用于增强小区间干扰协调(eICIC)的CSI计算的方法例如基于信号度量在延迟信道估计和用于计算CSI的未延迟信道估计之间进行选择。 使用所选择的信道估计来计算CSI。

    METHOD AND APPARATUS FOR INTERFERENCE CANCELLATION BY A USER EQUIPMENT USING BLIND DETECTION
    78.
    发明申请
    METHOD AND APPARATUS FOR INTERFERENCE CANCELLATION BY A USER EQUIPMENT USING BLIND DETECTION 审中-公开
    用于使用盲点检测的用户设备进行干扰消除的方法和装置

    公开(公告)号:US20130114437A1

    公开(公告)日:2013-05-09

    申请号:US13464905

    申请日:2012-05-04

    IPC分类号: H04B15/00 H04W24/00 H04W4/00

    摘要: In order to cancel any interference due to the second cell signal (e.g., from a non-serving cell) from a signal received at a UE, without receiving additional control information, the UE blindly estimates parameters associated with decoding the second cell signal. This may include determining a metric based on sets of symbols associated with the cell signals in order to determine parameters for the second cell signal, e.g., the transmission mode, modulation format, and/or spatial scheme of the second cell signal. The parameters for the signal may be determined based on a comparison of the metric with a threshold. When a spatial scheme and a modulation format is unknown, the blind estimation may include determining a plurality of constellations of possible transmitted modulated symbols associated with a potential spatial scheme and modulation format combination. Interference cancellation can be performed using the constellations and a corresponding probability weight.

    摘要翻译: 为了从UE接收到的信号中消除由于第二小区信号(例如来自非服务小区)的任何干扰而不接收附加的控制信息,UE盲目地估计与解码第二小区信号有关的参数。 这可以包括基于与小区信号相关联的符号集来确定度量,以便确定第二小区信号的参数,例如第二小区信号的传输模式,调制格式和/或空间方案。 可以基于度量与阈值的比较来确定信号的参数。 当空间方案和调制格式未知时,盲估计可以包括确定与潜在的空间方案和调制格式组合相关联的可能传输的调制符号的多个星座。 干扰消除可以使用星座和相应的概率权重进行。

    SYSTEM DESIGN FOR USER EQUIPMENT RELAYS
    80.
    发明申请
    SYSTEM DESIGN FOR USER EQUIPMENT RELAYS 审中-公开
    用户设备继电器的系统设计

    公开(公告)号:US20130016649A1

    公开(公告)日:2013-01-17

    申请号:US13546970

    申请日:2012-07-11

    IPC分类号: H04W88/04

    CPC分类号: H04W88/04

    摘要: Certain aspects of the present disclosure provide methods and apparatus related to various considerations for using systems comprising user equipment (UE) relays. One method generally includes receiving, at a UE functioning as a relay, data from a first apparatus; and relaying the received data to a second apparatus, wherein the relaying does not involve interpreting or altering security features of the received data.

    摘要翻译: 本公开的某些方面提供了与使用包括用户设备(UE)中继的系统的各种考虑相关的方法和装置。 一种方法通常包括在作为中继器的UE处接收来自第一装置的数据; 并将所接收的数据中继到第二装置,其中中继不涉及解释或改变所接收数据的安全特征。