Abstract:
Un método en un equipo de usuario (40) para medir el indicador de calidad del canal, CQI (Channel Quality Indicator, en inglés), de enlace descendente instantáneo, y reportar el CQI medido a la red cuando pueden utilizarse modulación de orden superior de 64 QAM y superior para la transmisión de datos de enlace descendente, comprendiendo el método la etapa de: -obtener (110) un CQI verdadero basándose en al menos un parámetro controlado de red y un parámetro de calidad del canal medido; estando el método caracterizado por las otras etapas de: -escalar (120) el citado valor de CQI verdadero multiplicando con un factor de escalado a un nuevo valor de CQI de manera que el nuevo CQI se encontrará dentro de un intervalo especificado de valores de CQI; -reportar (130) el nuevo CQI alcanzado escalando el valor de CQI obtenido con el fin de reportar cada valor de CQI con el mismo número de bits sobre todo el intervalo de reporte.
Abstract:
A signaling mechanism is provided to indicate to the user equipment which mode is currently in use for uplink and/or downlink transmission in a system supporting different transmission modes of a multicarrier radio system, such as a HSPA system or another radio system. Using such signaling a particular mode can be dynamically or semi-dynamically activated according to the need, UE reported events or measurements, BS measurements, type of service, DRX cycle in use etc.
Abstract:
A common uplink timing adjustment parameter value is estimated for UE transmissions in the multi-RAT communications network and provided for transmission to one or more UEs. That signaling parameter value is common to both the first and second RATs and useable by the one or more UEs to adjust transmit timing of uplink carriers belonging to the different RATs. The common timing adjustment parameter value may be provided, for example, in order to coordinate UE transmit timing of a first uplink carrier associated with the first RAT and of a second uplink carrier associated with the second RAT. A multi-RAT UE concurrently receives a first downlink carrier associated with the first RAT and a second different downlink carrier associated with the second RAT. The UE receives the common timing adjustment parameter value on one of those downlink carriers and adjusts a transmit timing of a first uplink carrier associated with the first RAT and of a second uplink carrier associated with the second RAT.
Abstract:
The present invention relates to a method and an arrangement of obtaining efficient power control during soft handover in a communication network system when a user equipment (18) is in communication with two or more radio base stations (15a, 15b) over a radio interface on downlink (17) and uplink (16) channels. Transmit power control (TPC) commands are received from said two or more radio base stations (15a, 15b) on said downlink channels (17). Said received transmit power control commands are analyzed and a power offset on said uplink channels (16) is adjusted based on said analyzed transmit power control commands.
Abstract:
Out-of-sync and in-sync detections and downlink power control by UTRAN (10) user equipment (22) are improved in Continuous Packet Connectivity mode featuring discontinuous UL DPCCH transmission by requiring all F-DPCH transmissions from a base station (16) to the user equipment (22) to be valid during a UL DTX gated period. Additionally, the user equipment (22) receives and considers all F-DPCH transmissions during the UL DTX gated period, for power control, out-of-sync and in-sync detections. If the user equipment (22) detects an out-of- sync condition, it may immediately transmit a scheduling request to notify the network (10), temporarily or permanently annulling the discontinuous UL DPCCH transmission.