Digital enhanced cordless telecommunication systems synchronization
    1.
    发明申请
    Digital enhanced cordless telecommunication systems synchronization 审中-公开
    数字增强型无绳电信系统同步

    公开(公告)号:US20010053194A1

    公开(公告)日:2001-12-20

    申请号:US09882450

    申请日:2001-06-14

    Inventor: Graham Johnson

    CPC classification number: H04M1/725 H04B7/2693 H04M2250/08

    Abstract: The invention relates to the provision of a means for preventing interference and the occurrence of nullsliding collisionsnull when two or more DECT communication systems are used in relatively close proximity The invention provides for the connection of the DECT systems to a data communication network along which a timing reference signal is carried such that the DECT systems connected to the network are synchronised. In one embodiment further steps can be taken to adapt the timing reference signal to take into account changes in the distance from the respective DECT systems to the data communication system head end at which the timing reference is generated.

    Abstract translation: 本发明涉及提供一种用于在两个或多个DECT通信系统相对接近地使用时防止干扰和“滑动碰撞”的发生的装置本发明提供了将DECT系统连接到数据通信网络 携带定时参考信号,使得连接到网络的DECT系统是同步的。 在一个实施例中,可以采取进一步的步骤来适配定时参考信号以考虑到从相应的DECT系统到产生定时参考的数据通信系统头端的距离的变化。

    Channel selection procedure for mobile communication devices
    2.
    发明申请
    Channel selection procedure for mobile communication devices 审中-公开
    移动通信设备的通道选择程序

    公开(公告)号:US20020082022A1

    公开(公告)日:2002-06-27

    申请号:US10027364

    申请日:2001-12-20

    Inventor: Graham Johnson

    Abstract: Channel selection procedure for a mobile communication device A method of controlling a mobile communication device, such as a mobile telephone, to operate at or over one or more predetermined frequency values or ranges depending on the geographical location. The method includes the steps of determining where the mobile communication device is in terms of geographical location using GSM network information, identifying frequency values or ranges available in the geographical location at which the device can operate and configuring the mobile communication device to operate at one of the identified frequency values or ranges.

    Abstract translation: 用于移动通信设备的信道选择过程根据地理位置,控制诸如移动电话的移动通信设备的操作等于或超过一个或多个预定频率值或范围的方法。 该方法包括以下步骤:使用GSM网络信息来确定移动通信设备在地理位置方面的位置,识别设备可以在其中操作的地理位置中可用的频率值或范围,并且将移动通信设备配置为在 识别的频率值或范围。

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