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    • 2. 发明申请
    • METHOD AND APPARATUS FOR ESTIMATING CHANNELIZATION CODES IN A WIRELESS TRANSMIT/RECEIVE UNIT
    • 在无线发射/接收单元中估计通道码的方法和装置
    • US20090201905A1
    • 2009-08-13
    • US12424914
    • 2009-04-16
    • Jaeyoung KwakDonald M. GriecoJung-Lin PanAriela Zeira
    • Jaeyoung KwakDonald M. GriecoJung-Lin PanAriela Zeira
    • H04B7/216
    • 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). 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)。 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的性能由其他WTRU的SF模糊性来保留。
    • 5. 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。
    • 6. 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
    • US07848288B2
    • 2010-12-07
    • US12424914
    • 2009-04-16
    • Jaeyoung KwakDonald M. GriecoKyle Jung-Lin PanAriela Zeira
    • Jaeyoung KwakDonald M. GriecoKyle Jung-Lin PanAriela Zeira
    • H04W4/00
    • 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). 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)。 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的性能由其他WTRU的SF模糊性来保留。
    • 8. 发明授权
    • Method and apparatus for deriving a combined transmit power control command during handover
    • 用于在切换期间导出组合的发射功率控制命令的方法和装置
    • US07657278B2
    • 2010-02-02
    • US11234629
    • 2005-09-23
    • Chang-Soo KooDonald M. GriecoJaeyoung Kwak
    • Chang-Soo KooDonald M. GriecoJaeyoung Kwak
    • H04W52/24H04W52/40
    • H04W52/40H04W52/146
    • A method and apparatus for deriving a combined transmit power control (TPC) command during handover are disclosed. During handover, a combined TPC command is generated from two or more TPC commands. The combined TPC command is set to −1 for decrease of the transmit power if a soft symbol of the TPC signal from any cell indicates decrease of the transmit power and the signal-to-interference ratio for the cell is greater than a reliability threshold. Otherwise, the combined TPC command is set to −1 if the function γ is not greater than the combining threshold, and set to +1 if the function γ is greater than the combining threshold, where the function γ represents a log-likelihood ratio of a probability density function of the combined TPC command.
    • 公开了一种用于在切换期间导出组合发射功率控制(TPC)命令的方法和装置。 在切换期间,从两个或多个TPC命令生成组合的TPC命令。 如果来自任何小区的TPC信号的软符号表示发射功率的降低,并且小区的信号干扰比大于可靠性阈值,则组合的TPC命令被设置为-1以降低发射功率。 否则,如果函数gamma不大于组合阈值,则将组合的TPC命令设置为-1,如果函数gamma大于组合阈值,则将其设置为+1,其中函数gamma表示对数似然比 组合TPC命令的概率密度函数。