会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 4. 发明公开
    • Method and apparatus for stabilizing communication in mobile communication system
    • einem移动通信系统中的Verfahren und Einrichtung zur Kommunikationsstabilizierung
    • EP1113681A2
    • 2001-07-04
    • EP00311729.8
    • 2000-12-28
    • NTT DoCoMo, Inc.
    • Okajima, IchiroUmeda, NarumiSuzuki, YoshifumiYamao, Yasushi
    • H04Q7/30H04B7/02
    • H04B7/022H04B7/026H04W92/20
    • A mobile communication system (1) is provided including a plurality of base stations (11-29) placed in a communication service area and connected to a network (10), in which a mobile station (30) communicates with a second station through the plurality of base stations (11-29) and the network (10). The mobile communication system (1) determines a virtual base station group, that is, an aggregation of the plurality of base stations communicating with the mobile station (30), based on a condition of a radio transmission path between the mobile station (30) and each base station (11-29), and combines information received by the plurality of base stations (15, 19, 20, 24) that belong to the virtual base station group at a base station included in the virtual base station group, characterized in that the network (10) connects the plurality of base stations (11-29) non-hierarchically, characterized in that the base station transmits combined information to the second station through the network (10).
      In such a system, the base stations (15, 19, 20, 24) belonging to the virtual base station group are not limited to specific base stations when the mobile station (30) moves in the communication service area. Accordingly, communication between a moving mobile station (30) and the base stations (11-29) is stabilized. Additionally, a single base station belonging to the virtual base station group executes processes related to communication between the mobile station (30) and the second station. Accordingly, execution of such processes is not concentrated in a single communication node, even if the number of base stations placed in the communication service area increases.
    • 提供一种移动通信系统(1),其包括放置在通信服务区域中并连接到网络(10)的多个基站(11-29),其中移动站(30)通过所述网络与第二站通信 多个基站(11-29)和网络(10)。 移动通信系统(1)基于移动站(30)之间的无线传输路径的状况,确定虚拟基站组,即与移动站(30)通信的多个基站的聚合, 和每个基站(11-29),并且组合由虚拟基站组中包括的基站处于属于虚拟基站组的多个基站(15,19,20,24)接收的信息,其特征在于 因为网络(10)非层次地连接多个基站(11-29),其特征在于,基站通过网络(10)将组合信息发送到第二站。 在这样的系统中,属于虚拟基站组的基站(15,19,20,24)不限于移动台(30)在通信服务区域内移动的特定基站。 因此,移动移动站(30)与基站(11-29)之间的通信是稳定的。 另外,属于虚拟基站组的单个基站执行与移动站(30)和第二站之间的通信相关的处理。 因此,即使放置在通信服务区域中的基站的数量增加,这种处理的执行也不集中在单个通信节点中。
    • 5. 发明公开
    • Control of bit rate based on traffic and transmit power
    • Bitratensteuerung auf Basis dem Verkehr und der Sendeleistung
    • EP1113589A2
    • 2001-07-04
    • EP00311728.0
    • 2000-12-28
    • NTT DoCoMo, Inc.
    • Yamao, YasushiUmeda, NarumiChen, Lan
    • H04B7/005H04B17/00
    • H04W52/267H04B17/345H04W52/24
    • A mobile communication control system, which includes at least one mobile station and at least one base station, includes first through third parts (404, 410, 413). The first part (404) measures traffic of radio channels in one or both of the above-mentioned at least one mobile station and the above-mentioned at least one base station. The second part (410) measures a communications quality of radio channels in use. The third part (413) determines a transmit power on a transmitting side and an information transmission bit rate on the basis of the traffic of the radio channels in use and information as to whether the transmit power on the transmitting side has reached a maximum transmit power.
    • 包括至少一个移动站和至少一个基站的移动通信控制系统包括第一至第三部分(404,410,413)。 第一部分(404)测量上述至少一个移动台和上述至少一个基站中的一个或两个中的无线电信道的业务。 第二部分(410)测量正在使用的无线电信道的通信质量。 第三部分(413)基于正在使用的无线电信道的业务量确定发送侧的发送功率和信息发送比特率,以及关于发送侧的发送功率是否达到最大发送功率的信息 。
    • 7. 发明公开
    • Data link transmission control methods, mobile communication systems, data link transmission control apparatus, base stations, mobile stations, mobile station control programs, and computer-readable recording media
    • 用于数据传输连接时,移动通信系统,控制设备,用于数据传输链路,基站,移动站,控制程序用于移动站和计算机可读记录介质的控制方法
    • EP2068488A3
    • 2011-05-04
    • EP09156264.5
    • 2002-04-25
    • NTT DOCOMO, INC.
    • Ohkubo, ShinzoYoshino, HitoshiOtsu, ToruYamao, Yasushi
    • H04L1/18H04W36/00
    • H04L1/1809H04L2001/0092H04W36/02
    • A data link transmission control method performs data link transmission control comprising automatic repeat request control for transmission/reception of a packet between a mobile station (131, 231) and a plurality of base stations (102, 112, 122, 202, 212, 222), wherein a first base station (102, 202) stores (S322) and makes (S322) a copy of packet in which identification information specifying the packet has been added to packet addressed to said mobile station (131, 231), wherein said first base station (102, 202) delivers (S323) said packet copy to a second base station (112, 212), wherein said second base station stores (S324) said delivered packet copy, and wherein one or more base stations (102, 112, 202, 212) comprising said first base station (102, 202) transmit (S328) to said mobile station (131, 231) the packet accompanied by said identification information, or said delivered packet copy; wherein said mobile station (231) measures (S461) receiving qualities of signals transmitted from a plurality of base stations (202, 212, 222), and wherein, based (S462) on the receiving qualities for the respective base stations (202, 212, 222), said mobile station (231) or each base station (202, 212, 222) sends (S463) a request for a transition of a communication state to a base station (202, 212, 222) desired to make the transition of the communication state into another communication state, wherein said communication states comprise: a first state in which no packet transmission/reception is carried out to or from the mobile station (231); a second state in which a packet addressed to said mobile station (231) is provided with identification information for specifying said packet and in which the packet accompanied by the identification information can be transmitted to the mobile station (231); a third state in which a packet addressed to said mobile station (231) is provided with identification information for specifying said packet, a copy is made from the packet accompanied by the identification information, the packet copy is delivered, and the packet accompanied by the identification information can be transmitted; and a fourth state in which the packet copy is received from a base station (202, 212, 222) working in said third state and in which the packet copy can be transmitted to the mobile station (231).
    • 9. 发明公开
    • Data link transmission control for mobile communications
    • 用于移动通信的数据链路控制系统
    • EP1253736A3
    • 2003-12-10
    • EP02009478.5
    • 2002-04-25
    • NTT DoCoMo, Inc.
    • Ohkubo, ShinzoYoshino, HitoshiOtsu, ToruYamao, Yasushi
    • H04L1/18H04Q7/38
    • H04L1/1809H04L2001/0092H04W36/02
    • A data link transmission control method according to the present invention is a data link transmission control method of performing data link transmission control comprising automatic repeat request control for transmission/reception of a packet between a mobile station and a plurality of base stations, wherein when during connection with a first base station, the mobile station sends a request for connection with a second base station to the first base station, the first base station transfers data link transmission control information to the second base station. Furthermore, a data link transmission control method of performing data link transmission control comprising automatic repeat request control for transmission/reception of a packet between a mobile station and a plurality of base stations,wherein a first base station stores and makes a copy of packet in which identification information specifying the packet has been added to packet addressed to the mobile station,wherein the first base station delivers the packet copy to a second base station,wherein the second base station stores the delivered packet copy, and wherein one or more base stations comprising the first base station transmit to the mobile station the packet accompanied by the identification information, or the delivered packet copy.