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    • 22. 发明授权
    • Radio communication mobile station apparatus and radio communication method
    • 无线通信移动台装置及无线通信方式
    • US08139473B2
    • 2012-03-20
    • US12293530
    • 2007-03-20
    • Daichi ImamuraSadaki FutagiAtsushi MatsumotoTakashi IwaiTomofumi Takata
    • Daichi ImamuraSadaki FutagiAtsushi MatsumotoTakashi IwaiTomofumi Takata
    • H04J11/00
    • H04W74/0833H04J13/0059H04J13/0066H04J13/16H04J13/22H04L5/0091H04W72/042
    • Provided is a mobile station capable of effectively reporting control information in RACH. In the mobile station, a signature selection unit (111) selects one of different code sequences as a signature according to inputted control information and a modulation unit (112) modulates a signature (code sequence). In a table provided in the signature selection unit (111), for control information ‘000’, CAZAC sequence #1 as a basic code sequence and a derived code sequence of shifts 0 to 7 derived from the CAZAC sequence #1 are set while being correlated to each other. The derived code sequence of shifts 0 to 7 of the CAZAC sequence #1 respectively correspond to signatures #1 to #8. Moreover, for control information ‘001’, CAZAC sequence #2 as a basic code sequence and a derived code sequence of shifts 0 to 7 derived from CAZAC sequence #2 are set while being correlated to each other. The derived code sequence of shifts 0 to 7 of the CAZAC sequence #2 respectively correspond to the signatures #9 to #16.
    • 提供能够有效地报告RACH中的控制信息的移动站。 在移动站中,签名选择部(111)根据输入的控制信息选择不同的代码序列之一作为签名,调制部(112)调制签名(代码序列)。 在签名选择部(111)中设置的表中,对于控制信息'000',作为基本代码序列的CAZAC序列#1和从CAZAC序列#1导出的移位0〜7的导出代码序列被设定为 相互关联。 CAZAC序列#1的移位0到7的导出代码序列分别对应于签名#1到#8。 此外,对于控制信息“001”,作为基本代码序列的CAZAC序列#2和从CAZAC序列#2导出的移位0〜7的导出代码序列被设定为彼此相关。 CAZAC序列#2的移位0到7的导出代码序列分别对应于签名#9至#16。
    • 23. 发明授权
    • Radio transmitting apparatus and radio transmitting method
    • 无线发送装置和无线发送方法
    • US08081617B2
    • 2011-12-20
    • US12376002
    • 2007-08-02
    • Takashi IwaiSadaki FutagiDaichi ImamuraAtsushi MatsumotoYoshihiko Ogawa
    • Takashi IwaiSadaki FutagiDaichi ImamuraAtsushi MatsumotoYoshihiko Ogawa
    • H04B7/216
    • H04W56/005H04J13/0074H04J13/10H04W8/26H04W74/0866
    • A radio transmitting apparatus and a radio transmitting method wherein the interference between codes can be reduced and the degradation of preamble detection capability can be prevented. According to these apparatus and method, a signature table storing part (103) that stores a table including a plurality of signatures obtained by classifying the magnitudes of propagation loss levels into levels in accordance with the distances from a base station, associating preamble detection window widths with those levels as classified, and by circularly shifting the pattern of a detection window signature #n corresponding to a signature #n to generate a signature #n+1. A signature selecting part (104) selects, based on the magnitude of a propagation loss level outputted by a propagation loss level determining part (102), one of the corresponding signatures from the signature table storing part (103) at random. A RACH signal generating part (105) uses the selected signature to generate a RACH signal.
    • 一种无线电发送装置和无线电发送方法,其中可以减少代码之间的干扰,并且可以防止前导码检测能力的劣化。 根据这些装置和方法,一种签名表存储部分(103),其存储包括根据与基站的距离将传播损耗级别的大小分级为等级而获得的多个签名的表,将前同步码检测窗宽度 通过循环移位与签名#n对应的检测窗签名#n的图案,生成签名#n + 1。 签名选择部(104)基于由传播损耗等级确定部(102)输出的传播损耗等级的大小,从签名表存储部(103)中随机选择一个对应的签名。 RACH信号生成部(105)使用所选择的签名来生成RACH信号。