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14 条记录 (耗时 0.018 秒)

    Radio channel allocation control in CDMA communication systems
    3.
    发明公开
    Radio channel allocation control in CDMA communication systems 审中-公开
    Funkkanal-Zuteilungssteuerung在CDMA社区系统

    公开(公告)号：EP1233641A2

    公开(公告)日：2002-08-21

    申请号：EP02251016.8

    申请日：2002-02-14

    申请人： NTT DoCoMo, Inc.

    发明人： Ishikawa, Yoshihiro ,  Onoe, Seizo ,  Nakamura, Takehiro ,  Yoshitaka, Hiramoto ,  Sato, Takaaki

    IPC分类号： H04Q7/38 ,  H04Q7/30

    CPC分类号： H04J13/16 ,  H04B2201/7071 ,  H04W16/14 ,  H04W24/00 ,  H04W72/0466 ,  H04W88/08

    摘要： A radio channel setting control method for communications between a base-station apparatus (111) and a mobile-station apparatus (112) in a mobile communications system employing a CDMA scheme comprising the steps of: a) determining whether or not a spread code used for the communications can be allocated; b) determining whether or not a predetermined hardware device can be allocated; c) determining whether or not a radio resource can be allocated; d) setting the radio channel between the base-station apparatus and mobile-station apparatus when it is determined that the spread code, predetermined hardware device and radio resource can be allocated.

    摘要翻译： 一种用于采用CDMA方案的移动通信系统中的基站装置（111）和移动台装置（112）之间的通信的无线电信道设置控制方法，包括步骤：a）确定是否使用扩频码 可以分配通信; b）确定是否可以分配预定的硬件设备; c）确定是否可以分配无线电资源; d）当确定可以分配扩展码，预定硬件设备和无线电资源时，设置基站装置和移动台装置之间的无线电信道。

    Wireless channel changeover method and mobile communication system
    5.
    发明公开
    Wireless channel changeover method and mobile communication system 有权
    Verfahren zum Umschalten eines drahtlosen Kanals und mobiles Kommunikationsystem

    公开(公告)号：EP1217858A1

    公开(公告)日：2002-06-26

    申请号：EP01310555.6

    申请日：2001-12-18

    申请人： NTT DoCoMo, Inc.

    发明人： Ishikawa, Yoshihiro ,  Onoe, Seizo ,  Obata, Kazunori ,  Sato, Takaaki

    IPC分类号： H04Q7/38 ,  H04L12/56

    CPC分类号： H04W28/20 ,  H04W72/06

    摘要： A mobile communication system includes a plurality of base stations (111) and a mobile station (112) communicating with the base station (111) through a wireless channel. The system comprises a part (16; 16') which measures an amount of information transferred between the base station (111) and the mobile station (112) and a comparator (16; 16') which compares the measured amount of information with first and second threshold values corresponding to a currently used wireless channel. A wireless channel changeover part (17; 17') changes the current wireless channel to a wireless channel with a transmission capability higher or lower than that of the current wireless channel when the measured amount of information is above the first threshold value or below the second threshold value, respectively.

    摘要翻译： 移动通信系统包括通过无线信道与基站（111）通信的多个基站（111）和移动站（112）。 该系统包括测量在基站（111）和移动站（112）之间传送的信息量的部分（16; 16'）和比较器（16; 16'），其将测量的信息量与第一 以及对应于当前使用的无线信道的第二阈值。 当测量的信息量高于第一阈值或低于第二阈值时，无线信道切换部分（17; 17'）将当前无线信道改变为具有比当前无线信道的传输能力更高或更低的传输能力的无线信道 阈值。

    Mobile radio communiction system, mobile station, and method for controlling diversity hand-over branch
    6.
    发明公开
    Mobile radio communiction system, mobile station, and method for controlling diversity hand-over branch 失效
    移动无线电通信系统，移动台，以及用于控制分集移交分支的方法

    公开(公告)号：EP1571857A2

    公开(公告)日：2005-09-07

    申请号：EP05076243.4

    申请日：1998-06-03

    申请人： NTT DoCoMo, Inc.

    发明人： Ohtani, Tomoyuki ,  Tamura, Motoshi ,  Sato, Takaaki

    IPC分类号： H04Q7/22 ,  H04B7/08

    CPC分类号： H04W36/18 ,  H04B7/022 ,  H04B7/0491 ,  H04W36/08 ,  H04W36/28 ,  H04W36/30 ,  H04W92/04 ,  H04W92/20

    摘要： A branch candidate selecting method by a mobile station and a diversity handover control method on a network side in DHO performance are provided which consider a maximum cable branch number and a maximum radio branch number of the mobile station, when the mobile station detects a plurality of addition branch candidates and deletion branch candidates. The mobile station inserts a plurality of addition branch candidates and deletion branch candidates, that is, all the DHO candidates into one handover trigger signal, and notifies the network. The addition branch candidates are put into addition information parameters in the handover trigger signal, and the deletion branch candidates are put into deletion information parameters. To simplify processing on the network side, the network side separates the addition branch candidates from the deletion branch candidates, and carries out sequential processing of them independently.

    摘要翻译： 在移动台检测到多个移动台时，考虑移动台的最大电缆分支数和最大无线电分支数，提供DHO性能的移动台的分支候选选择方法和网络侧的分集越区切换控制方法 补充分支候选人和删除分支候选人。 移动台将多个附加分支候选和删除分支候选，即全部DHO候选插入到一个切换触发信号中，并通知网络。 添加分支候选被放入切换触发信号中的附加信息参数中，并且删除分支候选被置于删除信息参数中。 为了简化网络侧的处理，网络侧从删除分支候选中分离出附加分支候选，并且独立地对它们进行顺序处理。

    Base station and radio resource allocation method
    7.
    发明公开
    Base station and radio resource allocation method 有权
    Basisstation und Verfahren zur Funkbetriebsmittelzuweisung

    公开(公告)号：EP1335624A1

    公开(公告)日：2003-08-13

    申请号：EP03003058.9

    申请日：2003-02-12

    申请人： NTT DoCoMo, Inc.

    发明人： Obata, Kazunori ,  Sato, Takaaki

    IPC分类号： H04Q7/38

    CPC分类号： H04W72/0486 ,  H04W76/10 ,  H04W88/08

    摘要： The base station comprises a number of reach times judging section which judges whether or not the number of times that the average radio resource usage volume for a prescribed time period has reached a change threshold value during a prescribed time period lies outside a reference number of times range; an allocation threshold value increasing and decreasing section which increases the allocation threshold value with respect to the radio resource usage volume at the time of a communications request from a mobile station, if the number of reach times is less than the minimum number of times of the reference number of times range, and reduces the allocation threshold value, if the number of reach times is greater than the maximum number of times of the reference number of times range; a usage volume at time of request judging section for judging whether or not the radio resource usage volume at the time of a communications request is less than an allocation threshold value; and a radio resource allocating section for allocating a new radio resource in order to establish a radio link with a mobile station, if the radio resource usage volume at the time of the communications request is less than the allocation threshold value.

    摘要翻译： 基站包括多个到达时间判定部，其判断规定时间段内的平均无线资源使用量在规定时间段内达到变化阈值的次数是否超出参考次数 范围; 分配阈值增加和减少部分，其在来自移动台的通信请求时相对于无线电资源使用量增加分配阈值，如果到达时间数小于最小次数， 参考次数范围，并且如果到达次数大于参考次数范围的最大次数，则减小分配阈值; 用于判断通信请求时的无线资源使用量是否小于分配阈值的请求判断部分的使用量; 以及无线电资源分配部分，用于分配新的无线电资源，以便如果通信请求时的无线电资源使用量小于分配阈值，则与移动台建立无线电链路。

    Downlink transmission power control scheme for mobile communication system using site diversity
    10.
    发明公开
    Downlink transmission power control scheme for mobile communication system using site diversity 失效
    用于使用站点分集的移动通信系统的下行链路传输功率控制方案

    公开(公告)号：EP1662675A3

    公开(公告)日：2006-06-07

    申请号：EP06003927.8

    申请日：1997-07-29

    申请人： NTT DoCoMo, Inc.

    发明人： Nakano, Etsuhiro ,  Nakamura, Takehiro ,  Ohno, Koji ,  Sato, Takaaki

    IPC分类号： H04B7/005 ,  H04B7/216

    CPC分类号： H04W52/40 ,  H04W52/367

    摘要： The present invention relates to a method of downlink transmission power control in a mobile communication system formed by a plurality of base stations (1, 2) and a mobile station (5) to be connected with the base stations (1, 2) via radio channels. Also, the mobile communication system comprises a base station control station (11) for controlling the base stations (1, 2). There is carried out a primary downlink transmission power control using a primary control signal which is transmitted from the mobile station (5) and terminated at each base station (1, 2) in short-time intervals. Also, the base station control station (11) carries out an additional downlink transmission power control using additional control signals which are transmitted in long-time intervals from the base station control station (11) to the base stations (1, 2) during a site diversity period. This allows to maintain a transmission power of each base station (1, 2) at nearly the same level.

    摘要翻译： 本发明涉及由多个基站（1,2）和移动台（5）构成的移动通信系统中的下行链路发射功率控制方法，该移动站将通过无线电与基站（1,2）连接 通道。 此外，移动通信系统包括用于控制基站（1,2）的基站控制站（11）。 使用从移动台（5）发送的并在每个基站（1,2）以短时间间隔终止的主控制信号执行主下行链路发射功率控制。 此外，基站控制站（11）利用附加的控制信号进行附加的下行链路传输功率控制，这些附加的控制信号在一段时间内从基站控制站（11）发射到基站（1,2） 现场多样性时期。 这允许将每个基站（1,2）的发射功率保持在几乎相同的水平。