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1. 发明公开

EP1605619A1 RADIO COMMUNICATION SYSTEM AND RADIO COMMUNICATION METHOD 审中-公开
标题翻译： FUNKKOMMUNIKATIONSSYSTEM UND FUNKKOMMUNIKATIONSVERFAHREN
公开(公告)号：EP1605619A1
公开(公告)日：2005-12-14
申请号：EP04715484.4
申请日：2004-02-27
申请人： NTT DoCoMo, Inc.
发明人： HAMAMOTO, Kozue , YOSHINO, Hitoshi , OTSU, Toru
IPC分类号： H04J11/00 , H04B1/707
CPC分类号： H04L5/0032 , H04L5/0007 , H04L5/0035 , H04L5/0039 , H04L5/0044 , H04L5/0064 , H04L25/0222
摘要： A radio communication system for carrying out communications between radio stations by modulating a plurality of signal sequences to be transmitted and received into at least one frequency channel assigned to each of a plurality of cells is formed by a channel mapping means for rearranging for each cell a plurality of frequency channels assigned with respect to each cell, and newly assigning particular frequency channels as a transmission and reception band of said signal sequences, and a bandwidth control means for controlling a bandwidth of said assigned frequency channel according to a propagation state of said assigned frequency channel.
摘要翻译：一种无线电通信系统，用于通过调制要发送和接收的多个信号序列来进行无线电台之间的通信，以分配给多个小区中的每个小区的至少一个频率信道，由通道映射装置形成，用于每个小区重新排列针对每个小区分配的多个频率信道，以及新分配特定频率信道作为所述信号序列的发送和接收频带;以及带宽控制装置，用于根据所述分配的信道的传播状态来控制所述分配的频率信道的带宽频道。其中表存储器被配置为存储指示在附近区域中使用的频率信道的使用状态的搜索表。

2. 发明授权

EP1233549B1 Communications System 有权
标题翻译：通信系统
公开(公告)号：EP1233549B1
公开(公告)日：2018-05-09
申请号：EP01309848.8
申请日：2001-11-22
申请人： NTT DoCoMo, Inc.
发明人： ABURAKAWA, Yuji , YOSHINO, Hitoshi , OTSU, Toru , YAMAO, Yasushi
IPC分类号： H04B10/00
CPC分类号： H04B10/032
摘要： An information transmission system for transmitting information from a sending apparatus to a receiving apparatus is provided. The information transmission system includes: a sending apparatus for modulating an information signal, generating a plurality of signals including an optical signal from the information signal which is modulated, and transmitting the plurality of signals via a plurality of routes; and a receiving apparatus for receiving the plurality of signals from the sending apparatus, diversity-combining the plurality of signals, and outputting the information signal, in which the plurality of signals are a plurality of optical signals or signals including a radio signal.

3. 发明授权

EP1250018B1 WIRELESS BASE STATION NETWORK SYSTEM, CONTROL STATION, BASE STATION SWITCHING METHOD, SIGNAL PROCESSING METHOD, AND HANDOVER CONTROL METHOD 有权
标题翻译：无线基站网络系统，控制站，基站调解，信号处理和迄今所取得的控制方法
公开(公告)号：EP1250018B1
公开(公告)日：2010-10-13
申请号：EP01926153.6
申请日：2001-05-08
申请人： NTT DoCoMo, Inc.
发明人： ABURAKAWA, Yuji , YOSHINO, Hitoshi , OTSU, Toru , YAMAO, Yasushi
IPC分类号： H04B10/12
CPC分类号： H04B10/25756 , H04J14/02 , H04J14/0227 , H04J14/0241 , H04J14/0283 , H04J14/0284 , H04J14/0286
摘要： A wireless base station network system in which base stations arranged at a plurality of cells and a control station for controlling the base stations are connected through optical fibers by wavelength-division multiplexing transmissions. The base station is provided with a wavelength-variable transmitter for transmitting optical signals of a predetermined wavelength, and an optical coupler for multiplexing optical signals from the wavelength-variable transmitter for the wavelength-division multiplexing transmissions. The control station is provided with a plurality of optical receivers for receiving the divided and multiplexed wavelengths of the optical signals, and an optical coupler for branching the optical signals having been divided and multiplexed from the plurality of base stations, individually to the wavelengths. Where the wireless communication terminal to communicate with the base station moves to change its communicating base station, a new base station, to which the wireless communication terminal has moved, controls the wavelength of the wavelength variable transmitter and transmits the optical signal wavelength identical to that transmitted by the base station before the movement, to the control station.

4. 发明公开

EP1250018A1 WIRELESS BASE STATION NETWORK SYSTEM, CONTROL STATION, BASE STATION SWITCHING METHOD, SIGNAL PROCESSING METHOD, AND HANDOVER CONTROL METHOD 有权
标题翻译：基础设施网络系统，STEUERUNGSSTATION，BASISSTATIONSVERMITTLUNGSVERFAHREN，SIGNALVERARBEITUNGSVERFAHREN SOWIE WEITERREICHUNGSSTEUERVERFAHREN
公开(公告)号：EP1250018A1
公开(公告)日：2002-10-16
申请号：EP01926153.6
申请日：2001-05-08
申请人： NTT DoCoMo, Inc.
发明人： ABURAKAWA, Yuji , YOSHINO, Hitoshi , OTSU, Toru , YAMAO, Yasushi
IPC分类号： H04Q7/24 , H04J14/02
CPC分类号： H04B10/25756 , H04J14/02 , H04J14/0227 , H04J14/0241 , H04J14/0283 , H04J14/0284 , H04J14/0286
摘要： The present invention is a network system of radio base stations comprising base stations provided in a plurality of cells and a control station controlling the base stations, in which the base stations and the control station are connected by optical fibers using a wavelength multiplexing transmission method, wherein: the base station comprises a variable-wavelength transmitter for transmitting an optical signal having a predetermined wavelength, and an optical coupler for combining optical signals from the variable-wavelength transmitter in order to transmit the optical signals using the wavelength multiplexing transmission method, the control station comprises a plurality of optical receivers for receiving wavelengths of the optical signals transmitted using the wavelength multiplexing transmission method, and an optical coupler for splitting the wavelength-multiplexed optical signals transmitted from the base stations into the optical receivers by wavelength, and when the radio communication terminal communicating with the base station moves and changes the base station to communicate with, a new base station which communicates with the radio communication terminal after a movement of the radio communication terminal controls the wavelength of the variable-wavelength transmitter, and then transmits the optical signals to the control station with the same wavelength as one used for transmitting by a previous base station which communicates with the radio communication terminal before the movement.
摘要翻译：其中布置在多个小区的基站和用于控制基站的控制站的无线基站网络系统通过光纤通过波分复用传输连接。基站设置有用于发送预定波长的光信号的波长可变发射机，以及用于复用来自用于波分复用传输的波长可变发射机的光信号的光耦合器。控制站设置有多个光接收器，用于接收光信号的分频复用波长，以及光耦合器，用于将已经从多个基站划分和多路复用的光信号分别分配到波长。无线通信终端与哪里通信。

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