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    • 2. 发明授权
    • Cell search method and apparatus for mobile station in mobile communication system
    • 移动通信系统中移动台的小区搜索方法和装置
    • US06961565B2
    • 2005-11-01
    • US09954956
    • 2001-09-18
    • Motohiro TannoTakehiro Nakamura
    • Motohiro TannoTakehiro Nakamura
    • H04B1/707H04B1/7083H04W36/00H04W36/36H04Q7/20
    • H04B1/7075H04B1/70735H04B1/7083H04B1/709
    • The present invention reduces the time required for cell search and increase the accuracy of the cell search by determining, during selection of frame boundaries and a scramble code, whether or not the selection results are correct. A mobile station causes descramblers to descramble a received signal with eight scramble codes. Then, correlators calculate the phases of the scramble codes on the basis of frame boundaries, and despreads the signal with a spreading code for a CPICH. The mobile station performs this operation over a plurality of symbols, and causes averaging process sections to average the results. Then, a peak detector selects a scramble code with which an average correlation coefficient is largest. This maximum average correlation coefficient is output to a detection results judging section, which then calculates the ratio of this value to a reference value calculated inside the mobile station, thereby judging detection results.
    • 本发明通过在选择帧边界和扰码期间确定选择结果是否正确来减少小区搜索所需的时间并增加小区搜索的准确性。 移动站使得解扰器用八个扰码解扰接收到的信号。 然后,相关器基于帧边界计算扰码的相位,并用CPICH的扩展码解扩信号。 移动台通过多个符号执行该操作,并使得平均处理部分对结果进行平均。 然后,峰值检测器选择平均相关系数最大的扰码。 该最大平均相关系数被输出到检测结果判定部,检测结果判定部根据该检测结果判定部计算该值与移动台内计算出的基准值的比例,判断检测结果。
    • 7. 发明授权
    • Paging scheme for mobile communication system using increased paging channel data transmission rate
    • 移动通信系统采用提高寻呼信道数据传输速率的寻呼方案
    • US06208624B1
    • 2001-03-27
    • US08969282
    • 1997-11-13
    • Motohiro TannoTakehiro NakamuraSeizo Onoe
    • Motohiro TannoTakehiro NakamuraSeizo Onoe
    • H04J300
    • H04W68/02H04W52/0216H04W68/00
    • A paging scheme for a mobile communication system which is capable of suppressing the power consumption of the mobile station by reducing the intermittent ratio while keeping an average time required for the paging shorter than a case of merely increasing a number of time-slots. Each base station transmits a paging channel on which a paging signal for each mobile station is transmitted at intermittent timings, where the paging channel has a data transmission rate higher than a required paging channel rate of the mobile communication system, so as to shorten a transmission time of the paging signal for each mobile station. Then, each mobile station judges a presence or absence of the paging signal for that mobile station by receiving the paging channel at these intermittent timings. The paging channel may have a data transmission rate which is variable. A number of time-slots provided in each frame of the paging channel can be increased so that an intermittent ratio at each mobile station becomes lower, without causing an increase of the average time required for the paging.
    • 一种用于移动通信系统的寻呼方案,其能够通过减少间歇比率同时保持寻呼所需的平均时间比仅增加时隙数量的情况来抑制移动台的功耗。 每个基站发送寻呼信道,在该寻呼信道上,以间歇定时发送每个移动台的寻呼信号,其中寻呼信道的数据传输速率高于移动通信系统的所需寻呼信道速率,以缩短传输 每个移动台的寻呼信号的时间。 然后,每个移动台通过在这些间歇定时接收寻呼信道来判断该移动台的寻呼信号的有无。 寻呼信道可以具有可变的数据传输速率。 可以增加在寻呼信道的每个帧中提供的多个时隙,使得每个移动台的间歇比率变低,而不会增加寻呼所需的平均时间。
    • 9. 发明授权
    • Mobile terminal apparatus and radio base station apparatus for use in multiple mobile communication systems
    • 用于多个移动通信系统的移动终端装置和无线基站装置
    • US08971286B2
    • 2015-03-03
    • US13120075
    • 2009-09-18
    • Yoshihisa KishiyamaMotohiro TannoMamoru Sawahashi
    • Yoshihisa KishiyamaMotohiro TannoMamoru Sawahashi
    • H04W4/00H04W72/00H04L5/00H04J11/00H04W48/16H04W72/08H04W74/08
    • H04L5/0037H04J11/0069H04L5/0007H04L5/001H04L5/0053H04L5/0062H04L5/0092H04W48/16H04W72/085H04W74/0833
    • A mobile terminal apparatus and radio base station apparatus supporting each of a plurality of mobile communication systems when the plurality of mobile communication systems coexists, where the mobile terminal apparatus performs a cell search using an SCH signal included in one downlink CC among a plurality of downlink CCs, and where the radio base station apparatus broadcasts a DBCH signal including information of an uplink CC paired with an initial downlink CC including the SCH signal obtained by the cell search, and transmits a response signal of an RACH signal from the mobile terminal apparatus to the mobile terminal apparatus in the initial downlink CC, and where the mobile terminal apparatus transmits a shared channel signal including information of a transmission/reception bandwidth of the mobile terminal apparatus to the radio base station apparatus in the uplink CC, and where the radio base station apparatus transmits a control signal including assignment information of a downlink CC and an uplink CC based on the information of the transmission and reception bandwidth of the mobile terminal apparatus to the mobile terminal apparatus, and where the radio base station apparatus and the mobile terminal apparatus communicate with each other in the downlink CC and the uplink CC based on the assignment information after random access.
    • 一种移动终端装置和无线基站装置,在多个移动通信系统共存时支持多个移动通信系统中的每一个,其中,移动终端装置使用多个下行链路中的一个下行链路CC中包含的SCH信号进行小区搜索 CC,并且其中无线电基站装置广播包括与包括通过小区搜索获得的SCH信号的初始下行链路CC配对的上行链路CC的信息的DBCH信号,并且将来自移动终端装置的RACH信号的响应信号发送到 初始下行链路CC中的移动终端装置,并且其中移动终端装置在上行链路CC中向无线基站装置发送包括移动终端装置的发送/接收带宽的信息的共享信道信号,并且其中无线电基站 站装置发送包括道具的分配信息的控制信号 nlink CC和上行链路CC,基于移动终端装置的发送和接收带宽的信息给移动终端装置,并且其中无线基站装置和移动终端装置在下行CC和上行链路中进行通信 CC基于随机访问后的分配信息。