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    • 56. 发明授权
    • Method and apparatus for estimating channelization codes in a wireless transmit/receive unit
    • 用于估计无线发射/接收单元中的信道化码的方法和装置
    • US07684378B2
    • 2010-03-23
    • US11095400
    • 2005-03-31
    • Jaeyoung KwakDonald M. GriecoJung-Lin PanAriela Zeira
    • Jaeyoung KwakDonald M. GriecoJung-Lin PanAriela Zeira
    • H04B7/216H04B1/00H04W72/00
    • H04B1/7103H04B1/70735H04B17/327H04B2201/70701
    • A method and apparatus for estimating channelization codes in a wireless transmit/receive unit (WTRU) using blind code detection (BCD). A WTRU receives communication bursts and detects a midamble in the received burst. A candidate code list is generated in accordance with the detected midamble. The candidate code list includes channelization codes intended for both the intended WTRU and other WTRUs. Active channelization codes among the codes in the candidate list are identified, and the identified codes are forwarded to a multi-user detector (MUD). The present invention resolves SF ambiguity in the downlink of TSM. Since the orthogonal variable spreading factor code maintains the orthogonality between codes of different SF, SFs of other WTRUs follow the SF of the intended WTRU. Moreover, since the data for other WTRUs is not used in symbol processing after MUD, the performance of MUD for the intended WTRU is preserved with the SF ambiguity of other WTRUs.
    • 一种使用盲码检测(BCD)估计无线发射/接收单元(WTRU)中的信道化码的方法和装置。 WTRU接收通信突发并检测接收到的突发中的中间码。 根据检测到的中间码产生候选码列表。 候选代码列表包括旨在用于预期的WTRU和其他WTRU的信道化代码。 识别候选列表中的代码之间的主动信道化代码,并将所识别的代码转发到多用户检测器(MUD)。 本发明解决了TSM下行链路中的SF模糊性。 由于正交可变扩频因子码维持不同SF的码之间的正交性,其他WTRU的SF遵循预期的WTRU的SF。 此外,由于在MUD之后的其他WTRU的数据不用于符号处理,所以对于预定的WTRU的MUD的性能被保留在其他WTRU的SF模糊度上。
    • 58. 发明申请
    • Communication System with Receivers Employing Generalized Two-Stage Data Estimation
    • 具有采用广义两阶段数据估计的接收机的通信系统
    • US20090225815A1
    • 2009-09-10
    • US12468354
    • 2009-05-19
    • Jung-Lin PanYuejin HuangDonald M. Grieco
    • Jung-Lin PanYuejin HuangDonald M. Grieco
    • H04B1/707
    • H04B1/71052H04B1/71055H04B2201/70707H04L25/0206H04L25/0246
    • A wireless transmit/receive unit (WTRU) is configure to receive and sample wireless signals in a shared spectrum where the wireless signal comprise encoded symbols. The WTRU has a channel estimation device configured to process received signal samples to produce an estimate of a channel response of the received signals corresponding to a matrix H. The channel estimation device is preferably configured to process the received signal samples to produce an estimate of noise variance of the received signals. The WTRU preferably has a two stage data estimator that includes a channel equalizer and a despreader. The channel equalizer is configured to process received signal samples using the estimated channel response matrix H and the estimate of noise variance to produce a spread signal estimate of the received signals. The despreader is configured to process the spread signal estimate of the received signals produced by said channel equalizer to recover encoded symbols of the received signals.
    • 无线发射/接收单元(WTRU)被配置为在无线信号包括编码符号的共享频谱中接收和采样无线信号。 WTRU具有被配置为处理接收的信号样本以产生对应于矩阵H的接收信号的信道响应的估计的信道估计装置。信道估计装置优选地被配置为处理接收的信号样本以产生噪声估计 接收信号的方差。 WTRU优选地具有包括信道均衡器和解扩器的两级数据估计器。 信道均衡器被配置为使用估计的信道响应矩阵H和噪声方差的估计来处理接收的信号样本,以产生接收信号的扩展信号估计。 解扩器被配置为处理由所述信道均衡器产生的接收信号的扩展信号估计,以恢复所接收信号的编码符号。
    • 59. 发明授权
    • Communication system with receivers employing generalized two-stage data estimation
    • 具有采用广义两阶段数据估计的接收机的通信系统
    • US07545851B2
    • 2009-06-09
    • US12135577
    • 2008-06-09
    • Jung-Lin PanYuejin HuangDonald M. Grieco
    • Jung-Lin PanYuejin HuangDonald M. Grieco
    • H04B1/707H04K1/10
    • H04B1/71052H04B1/71055H04B2201/70707H04L25/0206H04L25/0246
    • A wireless transmit/receive unit (WTRU) is configure to receive and sample wireless signals in a shared spectrum where the wireless signal comprise encoded symbols. The WTRU has a channel estimation device configured to process received signal samples to produce an estimate of a channel response of the received signals corresponding to a matrix H. The channel estimation device is preferably configured to process the received signal samples to produce an estimate of noise variance of the received signals. The WTRU preferably has a two stage data estimator that includes a channel equalizer and a despreader. The channel equalizer is configured to process received signal samples using the estimated channel response matrix H and the estimate of noise variance to produce a spread signal estimate of the received signals. The despreader is configured to process the spread signal estimate of the received signals produced by said channel equalizer to recover encoded symbols of the received signals.
    • 无线发射/接收单元(WTRU)被配置为在无线信号包括编码符号的共享频谱中接收和采样无线信号。 WTRU具有被配置为处理接收的信号样本以产生对应于矩阵H的接收信号的信道响应的估计的信道估计装置。信道估计装置优选地被配置为处理接收的信号样本以产生噪声估计 接收信号的方差。 WTRU优选地具有包括信道均衡器和解扩器的两级数据估计器。 信道均衡器被配置为使用估计的信道响应矩阵H和噪声方差的估计来处理接收的信号样本,以产生接收信号的扩展信号估计。 解扩器被配置为处理由所述信道均衡器产生的接收信号的扩展信号估计,以恢复所接收信号的编码符号。