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    • 1. 发明授权
    • Code division multiple access mobile communication system
    • 码分多址移动通信系统
    • US5568472A
    • 1996-10-22
    • US256230
    • 1994-06-29
    • Narumi UmedaTadashi MatsumotoYouichi Douzono
    • Narumi UmedaTadashi MatsumotoYouichi Douzono
    • H04B7/26H04J13/00H04J13/16H04J13/04
    • H04J13/16H04B7/2628
    • In a mobile communication system which uses a code division multiple access (CDMA) scheme for communications between a base station and a plurality of mobile stations, the base station has a transmitting device in which a plurality of information sequences S1 through Sn are respectively spread by multipliers 11 through 1n with a common spreading code from a spreading code generator circuit 10, the spread codes are provided to transmitting timing control circuits 21 through 2n and then added by an adder 30 to perform transmitting timing offset multiplexing and then the spread signals are transmitted to the mobile stations at different transmitting timing. The mobile stations each have a receiving device which receives that one of the transmitted signals which was transmitted at timing predetermined for the mobile station and despreads the received signal with the same spreading code as that used in the transmitting device, thereby reconstructing the original information sequence concerned.
    • PCT No.PCT / JP93 / 01592 Sec。 371日期:1994年6月29日 102(e)日期1994年6月29日PCT提交1993年11月4日PCT公布。 公开号WO94 / 10766 日期1994年5月11日在基站和多个移动台之间进行通信的码分多址(CDMA)方式的移动通信系统中,基站具有发送装置,其中多个信息序列S1〜Sn 分别由扩展码发生器电路10的公共扩展码乘以乘法器11至1n扩频,将扩展码提供给发送定时控制电路21至2n,然后由加法器30相加以执行发送定时偏移复用,然后 扩频信号在不同的发送定时被发送到移动台。 移动台各具有接收装置,其接收在针对移动台预定的定时发送的发送信号中的一个,并以与发送装置中使用的相同的扩展码对接收到的信号进行解扩,从而重建原始信息序列 关心。
    • 3. 发明授权
    • Base station device and mobile station device in mobile communication
system utilizing the site diversity effect in soft handover state
    • 移动通信系统中的基站设备和移动站设备利用软切换状态下的站点分集效应
    • US5574983A
    • 1996-11-12
    • US314719
    • 1994-09-29
    • Youichi DouzonoNarumi Umeda
    • Youichi DouzonoNarumi Umeda
    • H04B7/26H04B7/005H04W36/18H04W52/00H04W52/02H04W52/36H04W52/40H04W52/58H04B1/00
    • H04W52/40H04W36/18H04W52/0203H04W52/0245H04W52/36H04W52/58
    • A base station and a mobile station in a mobile communication system capable of reducing interference among mobile stations and increasing a subscriber capacity of the system. The base station has a unit for measuring a measurement value for at least one of a receiving level and an interference ratio level of the mobile station transmission signals, and a unit for producing a mobile station transmission power control data specifying a mobile station transmission power required in adjusting the measurement value to a target level according to a number of base stations simultaneously in communication with the mobile station. The mobile station has a unit for measuring a measurement value for at least one of a receiving level and an interference ratio level of the base station transmission signals, and a unit for producing a base station transmission power control data specifying a base station transmission power required in adjusting the measurement value to a target level according to a number of base stations simultaneously in communication with the mobile station.
    • 移动通信系统中的基站和移动台,能够减少移动台间的干扰,增加系统的用户容量。 基站具有用于测量移动台传输信号的接收电平和干扰比等级中的至少一个的测量值的单元,以及用于产生指定所需移动站发射功率的移动台发射功率控制数据的单元 在根据与移动台通信的基站的数量的基础上将测量值调整到目标电平。 移动站具有用于测量基站发送信号的接收电平和干扰比等级中的至少一个的测量值的单元,以及用于产生指定所需基站发送功率的基站发送功率控制数据的单元 在根据与移动台通信的基站的数量的基础上将测量值调整到目标电平。
    • 8. 发明授权
    • Mobile node, an ad hoc network routing controlling method and an ad hoc network system
    • 移动节点,自组织网络路由控制方法和自组织网络系统
    • US07486651B2
    • 2009-02-03
    • US11068960
    • 2005-03-02
    • Junichiro HagiwaraHidenori AokiNarumi Umeda
    • Junichiro HagiwaraHidenori AokiNarumi Umeda
    • H04Q7/24H04L12/28H04L12/56H04L9/00H04M1/66
    • H04L45/00H04L45/34H04L63/0435H04L63/0823H04L63/12H04W12/02H04W12/10H04W84/047
    • A mobile node (400) capable of establishing an ad hoc network routing is disclosed. The mobile node comprises a transmitting/receiving unit (426) for communicating with other communication unit and a routing request generator (422) for generating a routing request message for requiring an ad hoc network routing. The mobile node further comprises: an address storage (427) for storing an address of the mobile node (400) and an address of a receiving node; a random number generator (430) for generating a random number; a certificate issuing unit (440) for issuing a certificate of the mobile node (400); a digital signature creator (450) for creating a digital signature of the mobile node (400); and a controller (424) for transmitting/receiving the routing request message accompanied by the address of the mobile node, the address of the receiving node, the random number, the certificate and the digital signature via the transmitting/receiving unit, according to an ad hoc network protocol.
    • 公开了能够建立自组织网络路由的移动节点(400)。 移动节点包括用于与其他通信单元通信的发送/接收单元(426)和用于生成用于要求自组织网络路由的路由请求消息的路由请求生成器(422)。 移动节点还包括:用于存储移动节点(400)的地址的地址存储器(427)和接收节点的地址; 用于产生随机数的随机数发生器(430); 用于发行所述移动节点(400)的证书的证书发行单元(440); 用于创建所述移动节点(400)的数字签名的数字签名创建器(450); 以及用于经由发送/接收单元发送/接收伴随移动节点的地址,接收节点的地址,随机数,证书和数字签名的路由请求消息的控制器(424),根据 ad hoc网络协议
    • 9. 发明授权
    • Base station and transmission power control method
    • 基站和发射功率控制方法
    • US07483713B2
    • 2009-01-27
    • US11263923
    • 2005-11-02
    • Shinichi MoriIchiro OkajimaNarumi Umeda
    • Shinichi MoriIchiro OkajimaNarumi Umeda
    • H04B7/00
    • H04W52/40H04W52/143H04W52/225H04W52/241H04W52/243H04W52/325H04W52/343
    • A base station is disclosed. The base station includes: a service area status determination unit configured to determine status of a service area of the base station based on received signals from mobile stations; a total transmission power determination unit configured to determine status of total transmission power of the base station based on total transmission power of surrounding base stations; a transmission power determination unit configured to determine transmission power of a common control channel of the base station based on the status of the service area and the status of the total transmission power; and a transmission power setting unit configured to set the transmission power determined by the transmission power determination unit.
    • 公开了基站。 基站包括:服务区域状态确定单元,被配置为基于来自移动站的接收信号来确定基站的服务区域的状态; 总发射功率确定单元,被配置为基于周围基站的总发射功率来确定基站的总发射功率的状态; 发送功率确定单元,被配置为基于所述服务区域的状态和所述总发送功率的状态来确定所述基站的公共控制信道的发送功率; 以及发送功率设定单元,被配置为设置由发送功率确定单元确定的发送功率。