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    DOWNLINK TIMESLOT POWER CONTROL IN A TIME DIVISION MULTIPLE ACCESS SYSTEM
    2.
    发明申请
    DOWNLINK TIMESLOT POWER CONTROL IN A TIME DIVISION MULTIPLE ACCESS SYSTEM 审中-公开
    时分多址系统中的下行链路时隙功率控制

    公开(公告)号：WO0122599A3

    公开(公告)日：2001-09-07

    申请号：PCT/SE0001644

    申请日：2000-08-25

    Applicant: ERICSSON TELEFON AB L M

    Inventor： OESTMAN THOMAS ,  MONELL GUNNAR ,  HAGERMAN BO

    IPC: H04B7/005

    CPC classification number: H04W52/343 ,  H04W52/08 ,  H04W52/143 ,  H04W52/346

    Abstract: In a time division multiple access (TDMA) based cellular radio telecommunications system, system performance is improved by adjusting the transmit power associated with certain downlink signals during a corresponding timeslot, and in such a way that the power adjustment resembles that of a typical fading event, in terms of both time of occurrence and rate of occurrence (e.g., dB per msec). During the same timeslot, the transmit power is associated with other downlink signals is maintained at a substantially constant level. More particularly, the transmit power associated with a downlink signal is maintained at a substantially constant level if the power level does not sufficiently provide adequate signal quality for the corresponding mobile station in the presence of fading. In contrast, the transmit power associated with a downlink signal may be adjusted (e.g., attenuated) in such a way that it resembles that of a typical fading event if the transmit power associated with the downlink signal provides more than adequate signal quality for the corresponding mobile station, despite the power level adjustment and the presence of fading.

    Abstract translation: 在基于时分多址（TDMA）的蜂窝无线电电信系统中，通过在相应的时隙期间调整与某些下行链路信号相关联的发射功率来改善系统性能，并且以这样的方式使得功率调整类似于典型的衰落事件 ，就发生时间和发生率而言（例如，每毫秒dB）而言。 在相同时隙期间，发射功率与其他下行链路信号相关联保持在基本恒定的水平。 更具体地说，如果在存在衰落的情况下功率电平不足以为相应的移动台提供足够的信号质量，则与下行链路信号相关联的发射功率保持在基本恒定的电平。 相比之下，与下行链路信号相关联的发射功率可以被调整（例如，衰减），使得其类似于典型的衰落事件的发射功率，如果与下行链路信号相关联的发射功率为相应的信号提供更多的信号质量 移动台，尽管功率水平调整和衰落的存在。

    TAILORED COVERAGE AREA FOR ADAPTIVE ANTENNAS
    3.
    发明申请
    TAILORED COVERAGE AREA FOR ADAPTIVE ANTENNAS 审中-公开
    自适应天线的定制覆盖区域

    公开(公告)号：WO0065742A2

    公开(公告)日：2000-11-02

    申请号：PCT/SE0000722

    申请日：2000-04-25

    Applicant: ERICSSON TELEFON AB L M

    Inventor： OESTMAN TOMAS ,  HAGERMAN BO ,  MONELL GUNNAR

    IPC: H04B7/005 ,  H04W16/18 ,  H04W52/42 ,  H04B7/00

    CPC classification number: H04W16/18 ,  H04W52/42

    Abstract: A method and system for tailoring the coverage area of one or more cells in a radiocommunication system is disclosed. Cell coverage is tailored through the definition of a cell profile which may include a power profile and/or a hysteresis profile. Use of a cell power profile permits the system operator the adjust the antenna radiation patterns of appropriate base stations throughout the network. Use of a cell hysteresis power profile further permits the system operator to make additional adjustments to the borders of cells, for the purpose of hand-off, beyond the cell border adjustments implemented by the cell power profile. Definition of power and/or hysteresis profiles advantageously allows the system operator to tailor the borders of each cell in the network without necessarily having to add or relocate base stations.

    Abstract translation: 公开了一种用于定制无线电通信系统中的一个或多个小区的覆盖区域的方法和系统。 小区覆盖通过可以包括功率分布和/或滞后分布的小区简档的定义来定制。 使用小区功率简档允许系统操作员调整整个网络中适当基站的天线辐射模式。 使用单元滞后功率分布进一步允许系统操作者为了切换的目的对单元的边界进行额外的调整，超出由单元功率分布实现的单元边界调整。 功率和/或滞后曲线的定义有利地允许系统操作者定制网络中每个小区的边界，而不必增加或重定位基站。

    5.
    发明专利
    未知

    公开(公告)号：BR0010028A

    公开(公告)日：2002-01-15

    申请号：BR0010028

    申请日：2000-04-14

    Applicant: ERICSSON TELEFON AB L M

    Inventor： ISTMAN THOMAS ,  MONELL GUNNAR

    IPC: H04B7/005 ,  H04W52/12 ,  H04W52/50 ,  H04W76/02

    Abstract: Methods and apparatus for controlling the initial transmit power from a base station to a mobile station at call set-up and call handoff. The initial transmit power from a base station during a call set-up can be reduced from the conventional full power level by a sum of the hysteresis value for the cell which is handing off the mobile station and the hysteresis value for the cell which is receiving the mobile station. When a mobile station initiates or receives a call, the initial transmit power from a base station to the mobile station is reduced from the full power level by the hysteresis value for the hysteresis zone which surrounds the cell in which call set-up is to occur. The reduction in the initial power levels reduces interference caused to surrounding cells at the initiation of a call set-up or call handoff.

    Tailored base station power levels at handoff and call setup
    7.
    发明专利
    Tailored base station power levels at handoff and call setup 未知

    公开(公告)号：AU4632400A

    公开(公告)日：2000-11-10

    申请号：AU4632400

    申请日：2000-04-14

    Applicant: ERICSSON TELEFON AB L M

    Inventor： OSTMAN THOMAS ,  MONELL GUNNAR

    IPC: H04B7/005 ,  H04W52/12 ,  H04W52/50 ,  H04W76/02

    Abstract: Methods and apparatus for controlling the initial transmit power from a base station to a mobile station at call set-up and call handoff. The initial transmit power from a base station during a call set-up can be reduced from the conventional full power level by a sum of the hysteresis value for the cell which is handing off the mobile station and the hysteresis value for the cell which is receiving the mobile station. When a mobile station initiates or receives a call, the initial transmit power from a base station to the mobile station is reduced from the full power level by the hysteresis value for the hysteresis zone which surrounds the cell in which call set-up is to occur. The reduction in the initial power levels reduces interference caused to surrounding cells at the initiation of a call set-up or call handoff.

    TAILORED BASE STATION POWER LEVELS AT HANDOFF AND CALL SETUP
    9.
    发明专利
    TAILORED BASE STATION POWER LEVELS AT HANDOFF AND CALL SETUP 未知

    公开(公告)号：CA2371299C

    公开(公告)日：2008-01-22

    申请号：CA2371299

    申请日：2000-04-14

    Applicant: ERICSSON TELEFON AB L M

    Inventor： MONELL GUNNAR ,  OSTMAN THOMAS

    IPC: H04B7/005 ,  H04W52/12 ,  H04W52/50 ,  H04W76/02

    Abstract: Methods and apparatus for controlling the inital transmit power from a base station to a mobile station at call set-up and call handoff. The initial transmit power from a base station during a call set-up can be reduced from the conventional full power level by a sum of the hysteresis value for the cell which is handing off the mobile station and the hysteresis value for the cell which is receiving the mobile station. When the mobile station initiates or receives a call, the initial tranmsit power from a base station to the mobile station is reduced from the full power level by the hysteresis value for the hysteresis zone which surrounds the cell in which call set-up is to occur. The reduction in the initial power levels reduces interference caused to surrounding cells at the initiation of a call set-up or call handoff.

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