Initial multi-path acquisition of random access channels
    1.
    发明申请
    Initial multi-path acquisition of random access channels 审中-公开
    初始多路径获取随机接入信道

    公开(公告)号:US20060269024A1

    公开(公告)日:2006-11-30

    申请号:US11138362

    申请日:2005-05-27

    IPC分类号: H04B1/10

    摘要: A method may include determining whether to use a candidate path in acquiring a signal based on a path energy value at the candidate path and a path energy detection threshold. The path energy detection threshold may be less than a preamble detection threshold, and the preamble detection threshold may be used in detecting whether a candidate path carries a preamble.

    摘要翻译: 方法可以包括基于候选路径上的路径能量值和路径能量检测阈值来确定是否使用候选路径获取信号。 路径能量检测阈值可以小于前导码检测阈值,并且前导码检测阈值可以用于检测候选路径是否携带前导码。

    Methods of controlling tracker bandwidth in wireless communication systems
    2.
    发明申请
    Methods of controlling tracker bandwidth in wireless communication systems 有权
    在无线通信系统中控制跟踪器带宽的方法

    公开(公告)号:US20060222130A1

    公开(公告)日:2006-10-05

    申请号:US11094439

    申请日:2005-03-31

    IPC分类号: H04L7/00

    CPC分类号: H04L1/20 H04L7/0083 H04W88/08

    摘要: In a method of tracking on-time errors in a wireless communication system, first and second metrics may be produced from accumulated signal samples of a received data frame, and a sum of, and a difference between, the first and second metrics may be calculated. The calculated difference and sum values may be used to determine an estimated on-time error for the received data frame and a corrected timing error control value to be applied to the on-time error. The accuracy of the estimated on-time error may be evaluated based a signal quality metric to determine whether the corrected timing error control value is to be applied to the estimated on-time error or whether the timing adjustment for the on-time error is to be stopped.

    摘要翻译: 在一种跟踪无线通信系统中的准时误差的方法中,可以从接收的数据帧的累积信号样本产生第一和第二度量,并且可以计算第一和第二度量的和之和以及第一和第二度量之间的差值 。 所计算的差值和和值可用于确定接收数据帧的估计接通时间误差和要应用于接通时间误差的校正定时误差控制值。 可以基于信号质量度量来估计估计的接通时间误差的精度,以确定校正的定时误差控制值是否应用于估计的接通时间误差,或者导通时间误差的定时调整是否为 被停止

    Methods of controlling tracker bandwidth in wireless communication systems
    3.
    发明授权
    Methods of controlling tracker bandwidth in wireless communication systems 有权
    在无线通信系统中控制跟踪器带宽的方法

    公开(公告)号:US07532685B2

    公开(公告)日:2009-05-12

    申请号:US11094439

    申请日:2005-03-31

    IPC分类号: H03K9/00

    CPC分类号: H04L1/20 H04L7/0083 H04W88/08

    摘要: A method of tracking on-time errors may include producing first and second metrics from accumulated signal samples of a received data frame, and calculating a sum of, and a difference between, the first and second metrics. The calculated difference and sum values may be used to determine an estimated on-time error for the received data frame and a corrected timing error control value to be applied to the on-time error. The accuracy of the estimated on-time error may be evaluated based a signal quality metric to determine whether the corrected timing error control value is to be applied to the estimated on-time error or whether the timing adjustment for the on-time error is to be stopped.

    摘要翻译: 跟踪准时错误的方法可以包括从接收到的数据帧的累积信号样本产生第一和第二度量,以及计算第一和第二度量的总和以及差值。 所计算的差值和和值可用于确定接收数据帧的估计接通时间误差和要应用于接通时间误差的校正定时误差控制值。 可以基于信号质量度量来估计估计的接通时间误差的精度,以确定校正的定时误差控制值是否应用于估计的接通时间误差,或者导通时间误差的定时调整是否为 被停止

    Method of scaling soft symbols of an uplink enhanced dedicated transport channel (E-DCH) and method for enabling use of a log-map turbo decoding algorithm for processing the E-DCH
    5.
    发明授权
    Method of scaling soft symbols of an uplink enhanced dedicated transport channel (E-DCH) and method for enabling use of a log-map turbo decoding algorithm for processing the E-DCH 有权
    用于缩放上行链路增强型专用传输信道(E-DCH)的软符号的方法以及能够使用对数映射turbo解码算法来处理E-DCH的方法

    公开(公告)号:US07929510B2

    公开(公告)日:2011-04-19

    申请号:US11711618

    申请日:2007-02-28

    IPC分类号: H04B7/208

    CPC分类号: H04L25/067 H04L1/0055

    摘要: A method of scaling soft symbols of an uplink E-DCH is provided, where the E-DCH is received from a user in a network for processing in a base station receiver in the network employing a log-MAP turbo decoding algorithm to process the E-DCH. The E-DCH includes an E-DPDCH from which the soft symbols are generated at the base station receiver, and an E-DPCCH used to transmit control information associated with the E-DPDCH, which along with configuration information from a radio network controller (RNC) of the network enables the base station receiver to determine a reference amplitude ratio linked to the actual power offset of the E-DPDCH from the legacy DPCCH. In the method, an estimated E-DPDCH to DPCCH amplitude ratio that represents a scaling factor for the soft symbols is determined, and the soft symbols are scaled by the scaling factor to enable the soft symbols to be processed by the log-MAP turbo decoding algorithm in the base station receiver.

    摘要翻译: 提供了一种缩放上行E-DCH的软符号的方法,其中从网络中的用户接收E-DCH以在网络中的基站接收机中使用log-MAP turbo解码算法处理E -DCH。 E-DCH包括在基站接收机处产生软符号的E-DPDCH,以及用于发送与E-DPDCH相关联的控制信息的E-DPCCH,连同来自无线网络控制器的配置信息 RNC)使得基站接收机能够确定与传统DPCCH的E-DPDCH的实际功率偏移相关联的参考幅度比。 在该方法中,确定表示软符号的缩放因子的估计的E-DPDCH至DPCCH振幅比,并且通过缩放因子缩放软符号,以使得能够通过对数MAP turbo解码处理软符号 算法在基站接收机中。

    Blind data rate identification for enhanced receivers
    6.
    发明授权
    Blind data rate identification for enhanced receivers 有权
    增强接收机的盲数据速率识别

    公开(公告)号:US07809090B2

    公开(公告)日:2010-10-05

    申请号:US11318464

    申请日:2005-12-28

    IPC分类号: H04L27/06

    摘要: In a method for determining a transmitted data rate, a received data frame may be decoded using different candidate rates to generate a first decoded bit sequence associated with each candidate rate. A first frame quality indicator and a first error metric may be generated for each of the candidate rates based on the associated first decoded bit sequence and a decoding metric for the associated first decoded bit sequence. One of the candidate rates may be selected as the transmitted data rate based on the first frame quality indicators, the first error metrics and an error metric threshold.

    摘要翻译: 在用于确定发送数据速率的方法中,可以使用不同的候选速率对接收的数据帧进行解码,以生成与每个候选速率相关联的第一解码比特序列。 可以基于相关联的第一解码比特序列和相关联的第一解码比特序列的解码度量为每个候选率产生第一帧质量指示符和第一误差度量。 可以基于第一帧质量指示符,第一误差度量和误差度量阈值来选择候选率之一作为所发送的数据速率。

    Method and apparatus for detecting a packet error in a wireless communications system with minimum overhead using embedded error detection capability of turbo code
    8.
    发明授权
    Method and apparatus for detecting a packet error in a wireless communications system with minimum overhead using embedded error detection capability of turbo code 有权
    用于利用turbo码的嵌入式错误检测能力以最小开销检测无线通信系统中的分组错误的方法和装置

    公开(公告)号:US07565594B2

    公开(公告)日:2009-07-21

    申请号:US10926507

    申请日:2004-08-26

    IPC分类号: H03M13/00

    CPC分类号: H03M13/2975 H03M13/2957

    摘要: The need for separate CRC bits is eliminated by taking advantage of what has been determined to be an embedded error detection capability in a turbo code itself to perform error detection following turbo decoding. Specifically, since the two constituent encoders of a turbo encoder that are used to encode a data packet produce two systematic codes that share the same systematic bits one code, one is used to serve as the parity check for the other. The sign of the log likelihood ratio (LLR) of each systematic bit in a block of decoded data calculated at the end of a turbo decoding cycle is compared with the sign of the LLR of each corresponding bit that was calculated at a previous turbo decoding cycle. If the signs of the LLRs for each comparison do not agree, then a packet error is determined to have occurred; otherwise no packet error is detected.

    摘要翻译: 通过利用在turbo码本身中被确定为嵌入式错误检测能力的优点来消除对单独的CRC比特的需要,以便在turbo解码之后执行错误检测。 具体地说,由于用于编码数据分组的turbo编码器的两个组成编码器产生共享相同系统位的两个系统代码一个代码,所以使用一个用作另一个代码的奇偶校验。 将在turbo解码周期结束时计算的解码数据块中的每个系统比特的对数似然比(LLR)的符号与在先前turbo解码周期中计算的每个相应比特的LLR的符号进行比较 。 如果每个比较的LLR的符号不一致,则确定发生了分组错误; 否则不会检测到数据包错误。

    Method and apparatus for DTX frame detection
    9.
    发明授权
    Method and apparatus for DTX frame detection 有权
    用于DTX帧检测的方法和装置

    公开(公告)号:US07499433B2

    公开(公告)日:2009-03-03

    申请号:US10298551

    申请日:2002-11-19

    IPC分类号: H04B7/216

    CPC分类号: H04L1/0054

    摘要: A method and apparatus for detecting discontinued transmission (DTX) frames in data frames received over a link or channel, is described, where a DTX frame is a frame that does not carry data and which is transmitted with zero power over the link or channel. The method and apparatus determines whether a received data frame is a DTX frame based on a plurality of metrics. Based on the metrics, the method and apparatus may effectively discriminate a case where a data frame is received as an erasure (e.g., data frame received with errors), and a case where a transmitted data frame is received as a DTX frame.

    摘要翻译: 描述了一种用于检测通过链路或信道接收的数据帧中的不连续传输(DTX)帧的方法和装置,其中DTX帧是不携带数据并且在链路或信道上以零功率发射的帧。 该方法和装置基于多个度量来确定接收到的数据帧是否是DTX帧。 基于这些度量,该方法和装置可以有效地区分接收到数据帧作为擦除(例如,接收到错误的数据帧)的情况,以及将发送的数据帧作为DTX帧接收的情况。

    Method of scaling soft symbols of an uplink enhanced dedicated transport channel (E-DCH) and method for enabling use of a log-map turbo decoding algorithm for processing the E-DCH
    10.
    发明申请
    Method of scaling soft symbols of an uplink enhanced dedicated transport channel (E-DCH) and method for enabling use of a log-map turbo decoding algorithm for processing the E-DCH 审中-公开
    用于缩放上行链路增强型专用传输信道(E-DCH)的软符号的方法以及能够使用对数映射turbo解码算法来处理E-DCH的方法

    公开(公告)号:US20080205328A1

    公开(公告)日:2008-08-28

    申请号:US11711613

    申请日:2007-02-28

    IPC分类号: H04Q7/00

    摘要: A method of scaling soft symbols of an uplink E-DCH is provided, where the E-DCH is received from a user in a network for processing in a base station receiver in the network employing a log-MAP turbo decoding algorithm to process the E-DCH. The E-DCH includes an E-DPDCH from which the soft symbols are generated at the base station receiver, and an E-DPCCH used to transmit control information associated with the E-DPDCH, which along with configuration information from a radio network controller (RNC) of the network enables the base station receiver to determine a reference amplitude ratio linked to the actual power offset of the E-DPDCH from the legacy DPCCH. In the method, a reference E-DPDCH to DPCCH amplitude ratio is multiplied by a value greater than 1 to output a scaling factor, and the soft symbols are scaled by the scaling factor for processing by the log-MAP turbo decoding algorithm in the base station receiver.

    摘要翻译: 提供了一种缩放上行E-DCH的软符号的方法,其中从网络中的用户接收E-DCH以在网络中的基站接收机中使用log-MAP turbo解码算法处理E -DCH。 E-DCH包括在基站接收机处产生软符号的E-DPDCH,以及用于发送与E-DPDCH相关联的控制信息的E-DPCCH,连同来自无线网络控制器的配置信息 RNC)使得基站接收机能够确定与传统DPCCH的E-DPDCH的实际功率偏移相关联的参考幅度比。 在该方法中,将参考E-DPDCH至DPCCH振幅比乘以大于1的值以输出缩放因子,并且通过缩放因子对软符号进行缩放以供基站中的log-MAP turbo解码算法处理 站接收机。