Cell selection techniques for frequency division multiple access systems
    3.
    发明授权
    Cell selection techniques for frequency division multiple access systems 有权
    用于频分多址系统的小区选择技术

    公开(公告)号:US07321749B2

    公开(公告)日:2008-01-22

    申请号:US10683639

    申请日:2003-10-09

    IPC分类号: H04B17/00

    CPC分类号: H04W48/20 H04B17/318

    摘要: This disclosure is directed to power estimation techniques for use by a subscriber unit of a frequency division multiple access (FDMA) system during the cell selection process. The power estimation techniques recognize that adjacent cells, i.e., adjacent in terms of frequency, often have slight overlap. Thus, the power from a signal associated with one cell can cause power to be detected in an adjacent cell, even if no signal is actually present in the adjacent cell. In accordance with this disclosure, techniques are described for identifying, reducing or eliminating the detection of false positives in such adjacent cells. By identifying, reducing or eliminating the detection of false positives, the cell selection process can be accelerated and additional processing of false positive signals in such adjacent cells can be avoided.

    摘要翻译: 本公开涉及在小区选择过程期间由频分多址(FDMA)系统的用户单元使用的功率估计技术。 功率估计技术认识到相邻小区,即频率相邻,通常具有轻微的重叠。 因此,即使在相邻小区中实际上没有信号,来自与一个小区相关联的信号的功率也可以在相邻小区中检测到功率。 根据本公开,描述了用于识别,减少或消除在这些相邻小区中的假阳性检测的技术。 通过识别,减少或消除假阳性的检测,可以加速细胞选择过程,并且可以避免在这些相邻细胞中的假阳性信号的附加处理。

    CODE BLOCK INTERFERENCE CANCELLATION
    4.
    发明申请
    CODE BLOCK INTERFERENCE CANCELLATION 失效
    代码块干扰取消

    公开(公告)号:US20110206170A1

    公开(公告)日:2011-08-25

    申请号:US13032087

    申请日:2011-02-22

    IPC分类号: H04B1/10

    CPC分类号: H04B1/7107 H04J11/004

    摘要: Certain aspects of the present disclosure propose an interference cancellation method based on the sub-blocks inside a block. For example, in the long term evolution (LTE) standard, the sub-blocks may be code blocks and the blocks may be transport block.

    摘要翻译: 本公开的某些方面提出了基于块内的子块的干扰消除方法。 例如,在长期演进(LTE)标准中,子块可以是码块,并且块可以是传输块。

    Scheduling neighbor cell measurements for multiple wireless communication systems
    5.
    发明授权
    Scheduling neighbor cell measurements for multiple wireless communication systems 有权
    为多个无线通信系统调度相邻小区测量

    公开(公告)号:US07792537B2

    公开(公告)日:2010-09-07

    申请号:US11852924

    申请日:2007-09-10

    摘要: Techniques for scheduling measurements for cells in multiple (e.g., GSM and W-CDMA) wireless communication systems are described. GSM neighbor cells are categorized based on a number of states. The states are prioritized in a manner to achieve good performance. The GSM neighbor cells are thus assigned different priorities depending on their states. W-CDMA neighbor cells are prioritized relative to the states for GSM cells. All W-CDMA neighbor cells can be assigned the same state, given the same priority, and considered as “one” W-CDMA cell in the scheduling. A cell in the GSM or W-CDMA system is selected based on the priorities of the neighbor cells, and the selected cell is scheduled for measurement in the next available frame. The highest-ranking GSM or W-CDMA cell for each idle frame is thus granted use of that idle frame for measurement.

    摘要翻译: 描述了用于调度多个(例如GSM和W-CDMA)无线通信系统中的小区的测量的技术。 基于多个状态对GSM相邻小区进行分类。 各州的优先顺序是达到良好的表现。 因此,GSM相邻小区根据其状态分配不同的优先级。 W-CDMA相邻小区相对于GSM小区的状态是优先的。 给定相同的优先级,所有W-CDMA相邻小区可以分配相同的状态,并且在调度中被认为是“一个”W-CDMA小区。 基于相邻小区的优先级来选择GSM或W-CDMA系统中的小区,并且所选择的小区被调度用于下一个可用帧中的测量。 因此,每个空闲帧的最高级别的GSM或W-CDMA小区被授权使用该空闲帧进行测量。

    SELECTIVE QUANTIZATION OF DECISION METRICS IN WIRELESS COMMUNICATION
    7.
    发明申请
    SELECTIVE QUANTIZATION OF DECISION METRICS IN WIRELESS COMMUNICATION 有权
    无线通信中决策度量的选择性量化

    公开(公告)号:US20120033767A1

    公开(公告)日:2012-02-09

    申请号:US13181209

    申请日:2011-07-12

    IPC分类号: H04L27/06 H04L27/00

    CPC分类号: H04L25/03184 H04L25/067

    摘要: A method for quantizing decision metrics (e.g., log likelihood ratios (LLRs)) for reduction of memory requirements in wireless communication is described. The method includes selecting a quantization algorithm. The quantization algorithm may be selected as a function of a characteristic of a decision metric representative of a transport block received over a communication channel, a characteristic of the transport block, or a condition of the communication channel. The method further includes quantizing the decision metric using the selected quantization algorithm to generate at least one quantized decision metric representative of the transport block. The method further includes storing the quantized decision metric and an indicia of the selected quantization algorithm to enable recovery of the decision metric representative of the transport block prior to decoding.

    摘要翻译: 描述了用于量化用于减少无线通信中的存储器要求的决策度量(例如,对数似然比(LLR))的方法。 该方法包括选择量化算法。 可以根据表示通过通信信道接收的传输块,传输块的特性或通信信道的条件的决策度量的特性来选择量化算法。 该方法还包括使用所选择的量化算法对决策度量进行量化,以生成表示传输块的至少一个量化决策度量。 该方法还包括存储量化的决策度量和所选量化算法的标记,以使得能够在解码之前恢复表示传输块的决策度量。

    SYSTEM, METHOD AND APPARATUS FOR EARLY TERMINATION BASED ON TRANSPORT BLOCK FAIL FOR ACKNOWLEDGMENT BUNDLING IN TIME DIVISION DUPLEX
    8.
    发明申请
    SYSTEM, METHOD AND APPARATUS FOR EARLY TERMINATION BASED ON TRANSPORT BLOCK FAIL FOR ACKNOWLEDGMENT BUNDLING IN TIME DIVISION DUPLEX 有权
    基于传输块故障的早期终止的系统,方法和装置在时分双工中的确认

    公开(公告)号:US20110154170A1

    公开(公告)日:2011-06-23

    申请号:US12973792

    申请日:2010-12-20

    IPC分类号: H03M13/09 G06F11/10

    摘要: Methods, apparatus and articles of manufacture are disclosed that provide for early termination based on transport block fail for acknowledgement bundling in time division duplex. In one embodiment, a method for operating a communication device is provided. In this embodiment, the communication device decodes a downlink subframe that is part of a bundle of subframes. If it detects a CRC failure in the subframe, it inhibits decoding of at least one other subframe in the bundle if present and reports the failure to the sending node. This Abstract is provided for the sole purpose of complying with the Abstract requirement rules that allow a reader to quickly ascertain the disclosed subject matter. Therefore, it is to be understood that it should not be used to interpret or limit the scope or the meaning of the claims.

    摘要翻译: 公开了基于传输块故障的提前终止的方法,装置和制品,用于在时分双工中进行确认捆绑。 在一个实施例中,提供了一种用于操作通信设备的方法。 在该实施例中,通信设备对作为一组子帧的一部分的下行链路子帧进行解码。 如果它检测到子帧中的CRC故障,则它阻止对捆绑中的至少一个其他子帧的解码(如果存在),并将该故障报告给发送节点。 本摘要仅用于遵守允许读者快速确定所披露的主题的抽象要求规则。 因此,应当理解,它不应用于解释或限制权利要求书的范围或含义。

    METHOD AND APPARATUS FOR CANCELING PILOT INTERFERENCE IN A WIRELESS COMMUNICATION SYSTEM
    9.
    发明申请
    METHOD AND APPARATUS FOR CANCELING PILOT INTERFERENCE IN A WIRELESS COMMUNICATION SYSTEM 有权
    在无线通信系统中取消导频干扰的方法和装置

    公开(公告)号:US20110069736A1

    公开(公告)日:2011-03-24

    申请号:US12900394

    申请日:2010-10-07

    IPC分类号: H04B1/10 H04B1/69

    CPC分类号: H04B1/7107 H04B2201/70701

    摘要: Methods and systems for estimating and canceling pilot interference in a wireless (e.g., CDMA) communication system. In one method, a received signal comprised of a number of signal instances, each including a pilot, is initially processed to provide data samples. Each signal instance's pilot interference may be estimated by despreading the data samples with a spreading sequence for the signal instance, channelizing the despread data to provide pilot symbols, filtering the pilot symbols to estimate the channel response of the signal instance, and multiplying the estimated channel response with the spreading sequence. The pilot interference estimates due to a plurality of interfering multipaths are accumulated to derive the total pilot interference, which is subtracted from the data samples to provide pilot-canceled data samples. These samples are then processed to derive demodulated data for each of at least one (desired) signal instance in the received signal.

    摘要翻译: 用于估计和消除无线(例如,CDMA)通信系统中的导频干扰的方法和系统。 在一种方法中,最初处理包括多个信号实例(每个包括导频)的接收信号以提供数据样本。 每个信号实例的导频干扰可以通过用信号实例的扩展序列解扩数据样本来估计,对解扩数据进行信道化以提供导频符号,对导频符号进行滤波以估计信号实例的信道响应,并将估计信道 响应与扩展序列。 由多个干扰多径导致的导频干扰估计被累加以导出总导频干扰,其从数据样本中减去以提供导频取消的数据采样。 然后处理这些样本以便为接收信号中的至少一个(期望的)信号实例中的每一个导出解调数据。

    Method and apparatus for canceling pilot interference in a wireless communication system
    10.
    发明授权
    Method and apparatus for canceling pilot interference in a wireless communication system 有权
    用于消除无线通信系统中的导频干扰的方法和装置

    公开(公告)号:US07903770B2

    公开(公告)日:2011-03-08

    申请号:US11621307

    申请日:2007-01-09

    IPC分类号: H03D1/04 H04B1/707

    CPC分类号: H04B1/7107 H04B2201/70701

    摘要: Techniques for canceling pilot interference in a wireless (e.g., CDMA) communication system. In one method, a received signal comprised of a number of signal instances, each including a pilot, is initially processed to provide data samples. Each signal instance's pilot interference may be estimated by despreading the data samples with a spreading sequence for the signal instance, channelizing the despread data to provide pilot symbols, filtering the pilot symbols to estimate the channel response of the signal instance, and multiplying the estimated channel response with the spreading sequence to provide the estimated pilot interference. The pilot interference estimates due to all interfering multipaths are combined to derive the total pilot interference, which is subtracted from the data samples to provide pilot-canceled data samples. These samples are then processed to derive demodulated data for each of at least one (desired) signal instance in the received signal.

    摘要翻译: 用于在无线(例如CDMA)通信系统中消除导频干扰的技术。 在一种方法中,最初处理包括多个信号实例(每个包括导频)的接收信号以提供数据样本。 每个信号实例的导频干扰可以通过用信号实例的扩展序列解扩数据样本来估计,对解扩数据进行信道化以提供导频符号,对导频符号进行滤波以估计信号实例的信道响应,并将估计信道 响应与扩展序列提供估计的导频干扰。 由于所有干扰多径导致的导频干扰估计被组合以导出总导频干扰,其从数据样本中减去以提供导频取消的数据样本。 然后处理这些样本以便为接收信号中的至少一个(期望的)信号实例中的每一个导出解调数据。