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    • 1. 发明授权
    • Mobile communication system
    • 移动通信系统
    • US06351649B1
    • 2002-02-26
    • US09276660
    • 1999-03-26
    • Fumio WatanabeYoshio TakeuchiToshinori SuzukiHisato IwaiAkira Yamaguchi
    • Fumio WatanabeYoshio TakeuchiToshinori SuzukiHisato IwaiAkira Yamaguchi
    • H04B701
    • H04W52/242H04B17/318H04B17/345H04W16/14H04W52/146H04W88/06
    • A mobile communication system includes a first and second systems. Each of the first and second systems has a land station and at least one mobile terminal capable of communicating with the land station. The land station of the first system has a broadcasting channel transmission unit for transmitting status information via a broadcasting channel, and the mobile terminal of the second system has a broadcasting channel receiving unit for receiving information in the broadcasting channel to obtain a broadcasting channel receiving condition and the status information, a giving interference estimation unit for estimating giving interference level onto communication of the first system by the second system based upon the obtained broadcasting channel receiving condition and the obtained status information, and an output signal level control unit for controlling output signal level of the mobile terminal of the second system based upon the estimated giving interference level.
    • 移动通信系统包括第一和第二系统。 第一和第二系统中的每一个具有陆地站和能够与地面站通信的至少一个移动终端。 第一系统的地面站具有用于经由广播信道发送状态信息的广播频道传输单元,并且第二系统的移动终端具有广播频道接收单元,用于在广播频道中接收信息以获得广播频道接收条件 状态信息,基于所获得的广播信道接收条件和所获得的状态信息,估计由第二系统对第一系统的通信给出干扰电平的给出干扰估计单元,以及用于控制输出信号的输出信号电平控制单元 基于所估计的给定干扰电平,第二系统的移动终端的电平。
    • 6. 发明授权
    • Mobile communication system having adaptively assigned packet rate
    • 移动通信系统具有自适应分配的分组速率
    • US06961316B2
    • 2005-11-01
    • US09759159
    • 2001-01-16
    • Akira YamaguchiYoshio Takeuchi
    • Akira YamaguchiYoshio Takeuchi
    • H04L1/00H04L1/20H04W28/04H04W72/12G01R31/08
    • H04L1/0007H04L1/0002H04L1/0025H04L1/20H04W72/08
    • In a mobile communication system having a plurality of radio packet channels of different transmission rate with each other between a base station and a mobile station, undesirable interference to adjacent cells of adjacent base stations is decreased. Signal quality of a receive signal at a mobile station is measured, and the better said signal quality is, the higher packet channel is assigned. Thus, although signal quality is poor because of long distance between a base station and a mobile station, no increase of transmission power of a base station is requested. Thus, interference to adjacent cells is decreased. When high rate packet channel is selected, short packet transmission time may be assigned so that amount of data transmission is kept uniform in spite of said signal quality.
    • 在具有在基站与移动台之间彼此不同的传输速率的多个无线电分组信道的移动通信系统中,对相邻基站的相邻小区的不期望的干扰减小。 测量移动站的接收信号的信号质量,所述信号质量越好,分配了较高的分组信道。 因此,由于基站与移动台之间的距离较长,信号质量差,因此不要求基站的发送功率的增加。 因此,对相邻小区的干扰减小。 当选择高速率分组信道时,可以分配短分组传输时间,使得尽管有所述信号质量,数据传输量保持均匀。
    • 8. 发明授权
    • Authentication method for mobile communications
    • 移动通信的认证方法
    • US5596641A
    • 1997-01-21
    • US404290
    • 1995-03-14
    • Masayoshi OhashiYoshio TakeuchiToshinori SuzukiAkira YamaguchiSeiichiro SakaiToshio Mizuno
    • Masayoshi OhashiYoshio TakeuchiToshinori SuzukiAkira YamaguchiSeiichiro SakaiToshio Mizuno
    • H04L9/32H04W12/06H04L9/00
    • H04W12/06H04L9/3271H04L2209/80
    • In the preliminary authentication stage, the mobile station (35) is authenticated by sending from the home network (30) to the roamed network (31), a plurality of pairs of first random numbers (RNDa.sub.1, . . . , RNDa.sub.n) and calculation results (SRESa.sub.1, . . . , SRESa.sub.n) of the cipher function (f), which calculation is performed at the home network using the secret key (ki) and the first random numbers (RNDa.sub.1, . . . , RND.sub.an), by sending, from the roamed network to the mobile station, third random numbers formed by coupling second random numbers (RNDb.sub.1, . . . , RNDb.sub.m) produced at the roamed network with the first random numbers (RNDa.sub.1, . . . , RNDan), by sending, from the mobile station to the roamed network, calculation results (SRESa.sub.1, . . . , SRESa.sub.n, SRESb.sub.1, . . . , SRESb.sub.m)) of the cipher function (f), which calculation is performed at the mobile station using the secret key (ki) and the sent third random numbers, and by confirming, at the roamed network, coincidence of the calculation results (SRESa.sub.1, . . . , SRESa.sub.n) sent from the mobile station with the calculation results (SRESa.sub.1, . . . , SRESa.sub.n) sent from the home network. In the main authentication, the mobile station is authenticated by using a pair of the second random number (RNDb.sub.1, . . . , RNDb.sub.m) and of the calculation result (SRESb.sub.1, . . . , SRESb.sub.m) with respect to the second random number (RNDb.sub.1, . . . , RNDb.sub.m), sent from the mobile station.
    • 在初步认证阶段,通过从家庭网络(30)向漫游网络(31)发送多对第一随机数(RNDa1,...,RNDan)和计算来对移动台(35)进行认证 使用密钥(ki)和第一随机数(RNDa1,...,RNDan)在家庭网络中执行计算的密码函数(f)的结果(SRESa1,...,SRESan),通过发送 从漫游网络到移动台,通过将在漫游网络产生的第二随机数(RNDb1,...,RNDbm)与第一随机数(RNDa1,...,RNDan)相耦合而形成的第三随机数,通过发送 ,从移动站到漫游网络,计算结果(SRESa1,...,SRESan,SRESb1,...,SRESbm)),该密码函数(f)在移动站使用密钥执行计算 (ki)和发送的第三个随机数,并通过在漫游网络上确认计算结果的一致性 lts(SRESa1,。 。 。 ,SRESan)从移动台发送来自家庭网络的计算结果(SRESa1,...,SRESan)。 在主认证中,通过使用一对第二随机数(RNDb1,...,RNDbm)和计算结果(SRESb1,...,SRESbm)对第二随机数( RNDb1,...,RNDbm),从移动台发送。
    • 9. 发明授权
    • Mobile communications system and radio base station apparatus
    • 移动通信系统和无线基站装置
    • US06615030B1
    • 2003-09-02
    • US09656139
    • 2000-09-06
    • Joichi SaitoNaruhito NakaharaYuuji IshidaNaoki TsubakiToshinori SuzukiYoshio TakeuchiSumaru Niida
    • Joichi SaitoNaruhito NakaharaYuuji IshidaNaoki TsubakiToshinori SuzukiYoshio TakeuchiSumaru Niida
    • H04B110
    • H04B1/71075
    • In order to prevent decrease of channel efficiency and to effectuate high quality communication while moderating increase of apparatus scale of an interference canceler part and cutting down costs, in a mobile communication and radio base station apparatus according to the present invention, an interference cancel processing part within the base station apparatus is provided with reverse spread processing/respread processing parts for performing reverse spread processing and respread processing on received signals, synthesizing processing parts for synthesizing signals that have been subjected to the respread processing, and subtraction processing parts for subtracting the synthesized signal from received signal, in multiple stages. The interference cancel processing part processes received signals of users #1-#k. As a demodulation processing part, there is provided n demodulation processing parts that perform demodulation processing for received signals of users #1-#n, the number of those users being larger than the number of the users that can be processed in the interference cancel processing part. Those demodulation processing parts perform demodulation processing with respect to signals that have been subjected to the interference cancel processing.
    • 在本发明的移动通信和无线基站装置中,为了防止信道效率的降低和高质量的通信的同时抑制干扰消除部的装置规模的增加和降低成本,在本发明的移动通信和无线基站装置中, 在基站装置内设置有用于对接收信号进行反向扩展处理和再次处理的反向扩展处理/再处理部分,合成用于合成已经进行了再次处理的信号的处理部分,以及用于减去合成的 来自接收信号的信号,多级。 干扰消除处理部分处理用户#1-#k的接收信号。 作为解调处理部分,提供了对用户#1-#n的接收信号执行解调处理的n个解调处理部分,这些用户的数量大于在干扰消除处理中可以处理的用户的数量 部分。 那些解调处理部分对已经经过干扰消除处理的信号执行解调处理。
    • 10. 发明授权
    • Macrocell-microcell communication system with minimal mobile channel
hand-off
    • 具有最小移动信道切换的宏小区 - 微小区通信系统
    • US5640678A
    • 1997-06-17
    • US589121
    • 1996-01-19
    • Hiroyasu IshikawaYoshio TakeuchiHideo Kobayashi
    • Hiroyasu IshikawaYoshio TakeuchiHideo Kobayashi
    • H04W36/00H04B7/26H04W36/04H04W36/38H04Q7/22
    • H04W36/04
    • A mobile communication system is disclosed which precludes the necessity for mobile station to perform processing for microcell zone switching even when it moves from one microcell zone to another and which permits high-speed microcell zone handover. The service area of mobile communication is split into a plurality of macrocells; the macrocells are each subdivided into a plurality of microcells; a microcell base station equipped with a transmitting and receiving antenna and a power amplifier is installed in each microcell; a different communication channel is assigned to individual mobile station in the macrocell; even when the mobile station moves from one microcell to another, no channel handover takes place; and only when the mobile station moves from one macrocell to another, a mobile network control center which supervises the macrocell base stations effects channel handover.
    • 公开了一种移动通信系统,其排除了移动台即使当从一个微小区区域移动到另一个微小区区域时也执行微小区区域交换的处理的必要性,并且允许高速微小区区域切换。 移动通信业务区划分为多个宏小区; 宏单元每个细分成多个微小区; 在每个微小区中安装配备有发射和接收天线和功率放大器的微蜂窝基站; 向宏小区中的各个移动台分配不同的通信信道; 即使当移动台从一个微小区移动到另一个时,也不发生信道切换; 只有当移动站从一个宏小区移动到另一个宏小区时,监视宏小区基站的移动网络控制中心才能实现信道切换。