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    • 4. 发明申请
    • RANDOM ACCESS PREAMBLE AND RECEIVING SCHEMES FOR WIRELESS COMMUNICATIONS SYSTEMS
    • 无线通信系统的随机接入前导和接收方案
    • WO2009047732A2
    • 2009-04-16
    • PCT/IB2008/054171
    • 2008-10-10
    • NXP B.V.ZHANG, XiaoboMA, NiWU, Gang
    • ZHANG, XiaoboMA, NiWU, Gang
    • H04L27/26
    • H04L27/2613H04J11/0036H04J13/0062H04L5/0007H04L5/0053H04L23/02
    • A random access preamble scheme involves generating first and second preambles, each preamble having at least two Zadoff-Chu (ZC) sequences, with the ZC sequences of the first preamble being different from the ZC sequences in corresponding positions of the second preamble. For example, between two different preambles that each have two different ZC sequences, the first ZC sequences of the two preambles are different from each other and the second ZC sequences of the two preambles are different from each other. In another embodiment, a receiving scheme involves transforming received ZC sequences into transformed ZC sequences. In an embodiment, the received ZC sequences are transformed by correlating the received ZC sequences with their one chip cycle-shifting sequence. Transformed ZC sequences can be used for correlation detection in a multi- user wireless communications system.
    • 随机接入前导码方案涉及生成第一前导码和第二前导码,每个前导码具有至少两个Zadoff-Chu(ZC)序列,其中第一前导码的ZC序列与对应的ZC序列不同 第二前导码的位置。 例如,在具有两个不同的ZC序列的两个不同的前导码之间,两个前导码的第一ZC序列彼此不同,并且两个前导码的第二ZC序列彼此不同。 在另一个实施例中,接收方案涉及将接收的ZC序列变换为变换的ZC序列。 在一个实施例中,通过将所接收的ZC序列与它们的一个码片循环移位序列进行相关来变换所接收的ZC序列。 转换后的ZC序列可用于多用户无线通信系统中的相关性检测。
    • 10. 发明申请
    • IN-VEHICLE TRAFFIC NAVIGATION TERMINAL
    • 车内交通导航终端
    • WO2009104169A1
    • 2009-08-27
    • PCT/IB2009/050716
    • 2009-02-21
    • NXP B.V.MA, NiZHANG, XiaoboWU, Gang
    • MA, NiZHANG, XiaoboWU, Gang
    • G08G1/0968
    • G08G1/096827G08G1/096844G08G1/096883
    • An in-vehicle navigation terminal to identify a route of travel based on a combination of navigation signals and current traffic information. The in-vehicle navigation terminal includes a geographical positioning information receiver, a traffic information receiver, and a signal processing unit. The geographical 5 positioning information receiver receives a navigation signal from a global navigation satellite system (GNSS). The traffic information receiver receives current traffic information from a local traffic information system. The signal processing unit is coupled with the geographical positioning information receiver and the traffic information receiver to identify a route of travel based on the 10 navigation signal and the current traffic information.
    • 基于导航信号和当前交通信息的组合来识别行驶路线的车载导航终端。 车载导航终端包括地理定位信息接收机,交通信息接收机和信号处理单元。 地理5定位信息接收机从全球导航卫星系统(GNSS)接收导航信号。 交通信息接收器从本地交通信息系统接收当前交通信息。 信号处理单元与地理定位信息接收器和交通信息接收机耦合,以基于10导航信号和当前交通信息识别行驶路线。