Convergencia del nivel de potencia en un sistema de radiocomunicaciones

    公开(公告)号:ES2390118T3

    公开(公告)日:2012-11-06

    申请号:ES01979150

    申请日:2001-10-19

    Abstract: Un método para ajustar la potencia en una estación base (110) involucrada en una comunicación en macrodiversidad, que comprende las etapas de:-recepción de una instrucción de potencia (425C);-establecimiento de una potencia actual (430G) de la estación base;-determinación de un valor de ajuste de la potencia como respuesta a la instrucción de potencia y a la potenciaactual (430) de la estación base; y-ajuste de la potencia actual de la estación base basándose en el valor de ajuste de la potencia (430I),caracterizado porque dicha etapa de determinación de un valor de ajuste de la potencia como respuesta a lainstrucción de potencia y a la potencia actual de la estación base comprende las etapas de:comparación de la potencia actual de la estación base con un umbral predeterminado (530) yfijación del valor de ajuste de la potencia igual a un primer valor (510; 430B) que es menor que un primer valornominal si la instrucción de potencia corresponde a un comando de aumento (425A) y si la potencia actual de laestación base es mayor que el umbral predeterminado (430A);fijación del valor de ajuste de la potencia igual a un segundo valor (505; 430C) que es mayor que un segundovalor nominal si la instrucción de potencia corresponde a un comando de aumento y si la potencia actual de laestación base no es mayor que el umbral predeterminado;fijación del valor de ajuste de la potencia igual a un tercer valor (515; 430E) que es menor que un tercer valornominal si la instrucción de potencia corresponde a un comando de disminución (425B) y si la potencia actual dela estación base es menor que el umbral predeterminado (430D); yfijación del valor de ajuste de la potencia igual a un cuarto valor (520; 430F) que es mayor que un cuarto valornominal si la instrucción de potencia corresponde a un comando de disminución (425B) y si la potencia actual dela estación base no es menor que el umbral predeterminado.

    43.
    发明专利
    未知

    公开(公告)号:DE60043703D1

    公开(公告)日:2010-03-04

    申请号:DE60043703

    申请日:2000-09-13

    Abstract: A method and apparatus for controlling transmission power levels in a CDMA cellular communication system are disclosed, whereby a third (middle) control loop is interposed between an inner loop and an outer loop to form a cascaded power control loop. Certain quality indicators are coupled to the outer loop and middle loop. The outer loop produces a quality target value for the middle loop. The middle loop produces the SIR target value.

    44.
    发明专利
    未知

    公开(公告)号:DE60040920D1

    公开(公告)日:2009-01-08

    申请号:DE60040920

    申请日:2000-09-15

    Abstract: The present invention relates to methods of controlling transmitting power in a cellular radio communication system comprising one or several base stations each communicating with mobile terminals located within its respective area of coverage in which method the desired power change is calculated by means of an adaptive algorithm. Power drift between the desired output power and actually used output power is reduced by making the algorithm reduce the influence of the previously used output power by multiplying it with a "forgetting function" lambda with values between 0 and 1. At the receiving end is a decision made whether the received power order commands are reliable or not by checking the soft value of the power order commands. This proposed power control algorithm provides a delta-modulated fast power control method which is robust to errors in the signalling channel and at the same time reacts quickly to fast fading variations.

    45.
    发明专利
    未知

    公开(公告)号:DE60323477D1

    公开(公告)日:2008-10-23

    申请号:DE60323477

    申请日:2003-04-15

    Abstract: Users of a given service in a wireless communication system that includes a plurality of multi-service subsystems are allocated to one of the subsystems in accordance with a combined capacity region of the wireless communication system. The combined capacity region is determined based upon capacity regions of each of the plurality of multi-service subsystems. The capacity regions of the plurality of multi-service subsystems are determined using a relative decrease in users of a first service as a function of an increase in users of a second service.

    49.
    发明专利
    未知

    公开(公告)号:SE524688C2

    公开(公告)日:2004-09-14

    申请号:SE0104180

    申请日:2001-12-06

    Abstract: The present invention relates to a method in a wireless communication system and in particular better usage of available radio resources in such systems by controlling the party effects using user based scheduling back-off. The scheduling back-off according to the invention is based on providing and controlling the number of channels/frequencies/codes/timeslots or fractions of channel use to a terminal depending on information regarding radio channel quality obtained from the system.

    Power control in a CDMA mobile communication system

    公开(公告)号:AU771348B2

    公开(公告)日:2004-03-18

    申请号:AU7467300

    申请日:2000-09-13

    Abstract: A method and apparatus for controlling transmission power levels in a CDMA cellular communication system are disclosed, whereby a third (middle) control loop is interposed between an inner loop and an outer loop to form a cascaded power control loop. Certain quality indicators are coupled to the outer loop and middle loop. The outer loop produces a quality target value for the middle loop. The middle loop produces the SIR target value.

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