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    Method of WCDMA coverage based handover triggering
    2.
    发明授权
    Method of WCDMA coverage based handover triggering 有权

    公开(公告)号：US06615044B2

    公开(公告)日：2003-09-02

    申请号：US09875786

    申请日：2001-06-06

    申请人： Karl Tigerstedt ,  Harri Holma ,  Kai Heikkinen ,  Atte Artamo ,  Uwe Schwarz ,  Achim Wacker

    发明人： Karl Tigerstedt ,  Harri Holma ,  Kai Heikkinen ,  Atte Artamo ,  Uwe Schwarz ,  Achim Wacker

    IPC分类号： H04Q738

    CPC分类号： H04W36/0088 ,  H04W36/30

    摘要： A method of triggering an IF or IS handover between two WCDMA carrier or a WCDMA carrier and a GSM carrier. Six triggering conditions are used to initiate the search for an alternative network connection by starting the handover measurements. These triggering conditions are: a) the mobile terminal TxPwr has exceeded its threshold value longer than a specified time; b) the connection based power in the downlink has exceeded its threshold value longer than a specified time; c) the mobile terminal TxPwr has reached the maximum value a specified number of times; d) the SIR target at the base station has risen above a specified threshold value over a period of time; e) the mobile terminal TxPwr has exceeded its threshold value and the gradient of the power control signature indicates sudden rise to maximum power level; and f) the pilot power measured at the mobile terminal has fallen below a threshold value for long than a specified time.

    Method and network element for controlling handover
    3.
    发明授权
    Method and network element for controlling handover 有权
    用于控制切换的方法和网元

    公开(公告)号：US07197318B2

    公开(公告)日：2007-03-27

    申请号：US10475825

    申请日：2001-04-26

    申请人： Uwe Schwarz ,  Harri Holma ,  Karl Tigerstedt ,  Achim Wacker ,  Atte Artamo ,  Kai Heikkinen

    发明人： Uwe Schwarz ,  Harri Holma ,  Karl Tigerstedt ,  Achim Wacker ,  Atte Artamo ,  Kai Heikkinen

    IPC分类号： H04Q7/20 ,  H03C1/62 ,  H04B7/00 ,  H04M7/00

    CPC分类号： H04W36/22

    摘要： The present invention relates to a method and apparatus for controlling a connection transfer in a cellular network having at least two systems, such as a GSM system and a WCDMA system. Based on a load determination, a service-based inter-system or inter-frequency handover of the connection to another system or to another carrier of the same system is initiated if the determined is below a threshold and service priorities are indicating it. If it exceeds the threshold, an additional load-based inter-system or inter-frequency handover can be initiated. If the load of the target cell is not known, a load estimation based on a learning process can be used to derive a probability of success of an interfrequency or inter-system handover, which may be used for deciding on the initiation of the inter-system handover. The learning process may be performed by evaluating preceding interfrequency or inter-system handovers to the target cell or preceding interfrequency or inter-system handovers from the target cell. Thereby, users can be shared between different radio access technologies or systems or between different carriers of one system to thereby improve network capacity and quality of service for both systems and carriers. Furthermore, unnecessary inter-system handovers can be prevented in case the load of the target cell of the other system is not known.

    摘要翻译： 本发明涉及用于控制具有至少两个系统的蜂窝网络中的连接传送的方法和装置，例如GSM系统和WCDMA系统。 基于负载确定，如果所确定的低于阈值并且服务优先级指示它，则启动与另一个系统或同一系统的另一个运营商的连接的基于服务的系统间或跨频率切换。 如果它超过阈值，则可以启动额外的基于负载的系统间或频间切换。 如果目标小区的负载不知道，则可以使用基于学习过程的负载估计来导出接口间或系统间切换成功的概率，其可以用于决定对方小区的启动， 系统切换。 学习过程可以通过对目标小区进行先前的接口频率或系统间切换，或者从目标小区进行先前的接口频率或系统间切换来执行。 因此，用户可以在不同的无线电接入技术或系统之间或在一个系统的不同载波之间共享，从而提高系统和载波的网络容量和服务质量。 此外，在其他系统的目标单元的负载未知的情况下，可以防止不必要的系统间切换。

    Method and system for inter-operator handover between WCDMA and GSM
    4.
    发明授权
    Method and system for inter-operator handover between WCDMA and GSM 有权
    WCDMA与GSM之间运营商间切换的方法和系统

    公开(公告)号：US06836471B2

    公开(公告)日：2004-12-28

    申请号：US09776234

    申请日：2001-02-02

    申请人： Harri Holma ,  Karl Tigerstedt ,  Atte Artamo ,  Kai Heikkinen ,  Uwe Schwarz ,  Achim Wacker

    发明人： Harri Holma ,  Karl Tigerstedt ,  Atte Artamo ,  Kai Heikkinen ,  Uwe Schwarz ,  Achim Wacker

    IPC分类号： H04Q700

    CPC分类号： H04W36/0061

    摘要： A method and system for inter-operator handover in a telecommunications network comprising a greenfield WCDMA operator and a GSM/WCDMA operator. When a mobile terminal of the greenfield operator is moving from the coverage area of the home network to the GSM/WCDMA area, a neighbor list of GSM cells is provided to the mobile terminal for handover to a GSM cell when the home network coverage is not available. When the mobile terminal is returning home from the GSM/WCDMA area, a neighbor list of the home cells is provided to the mobile terminal so that the greenfield mobile station is connected to its home network whenever there is coverage. Preferably, the neighbor lists are provided to the mobile terminal only in the connected mode.

    摘要翻译： 一种用于在包括绿地WCDMA运营商和GSM / WCDMA运营商的电信网络中的运营商间切换的方法和系统。 当绿地运营商的移动终端从家庭网络的覆盖区域移动到GSM / WCDMA区域时，当家庭网络覆盖不是时，将GSM小区的邻居列表提供给移动终端以切换到GSM小区 可用。 当移动终端从GSM / WCDMA区域返回家庭时，将家庭小区的邻居列表提供给移动终端，使得绿田移动台每当有覆盖时连接到其家庭网络。 优选地，邻居列表仅在连接模式下被提供给移动终端。