ALGORITMO DE BUSQUEDA DE CELDA INICIAL.

    公开(公告)号:ES2273312T3

    公开(公告)日:2007-05-01

    申请号:ES05108806

    申请日:2002-02-04

    Abstract: Un método para llevar a cabo una búsqueda de celda inicial y establecer un enlace de comunicación entre un UE (equipo de usuario) y una estación de base en una red de comunicación, de tal modo que el método comprende las etapas de: llevar a cabo una búsqueda de celda para detectar una red móvil terrestre pública PLMN, un código de mezcla criptográfica primario y un desplazamiento o desajuste asociado a dicha estación de base; comparar dicho código de mezcla criptográfica primario con un código de mezcla criptográfica primario previamente almacenado, y dicho desajuste con un desajuste previamente almacenado; rechazar dicho código de mezcla criptográfica primario y dicho desajuste si el código de mezcla criptográfica primario es igual a uno de dichos códigos de mezcla de inteligibilidad primarios previamente almacenados; llevar a cabo adicionalmente dicha búsqueda de celda excluyendo una ventana predeterminada en el entorno de cualesquiera desajustes rechazados; y ajustar una frecuencia de búsqueda en respuesta a una condición de fallo de sincronización.

    73.
    发明专利
    未知

    公开(公告)号:DE60216162D1

    公开(公告)日:2006-12-28

    申请号:DE60216162

    申请日:2002-02-04

    Abstract: A method and an apparatus are disclosed for establishing a communication link between a user equipment (UE) and a base station in a wireless communication network. An incoming communication signal is sampled, wherein the sampling includes generating even and odd signal samples of the communication signal, a signal strength magnitude is approximated for each of the signal samples, and the signal strength magnitudes of the signal samples are accumulated. A peak sample is then identified, wherein the peak sample is the signal sample with a highest accumulated signal strength magnitude, an index value is assigned to the peak sample, wherein the index value indicates a chip location of a primary scrambling code, and a chip offset is assigned to the index value based on the index value. A code group number and slot offset is determined based on the chip offset, the primary scrambling code is retrieved based on the code group number and slot offset, and a search frequency of a UE is adjusted based on the primary scrambling code.

    74.
    发明专利
    未知

    公开(公告)号:NO20065032L

    公开(公告)日:2006-11-02

    申请号:NO20065032

    申请日:2006-11-02

    Abstract: A method and apparatus for dynamically adjusting the impedance between a transmitter's power amplifier (PA) and antenna to efficiently transfer power from the PA to the antenna. The impedance between the PA and the antenna is adjusted based on power level measurements and/or PA direct current (DC) consumption measurements, depending on whether the PA is a linear PA or a switch-mode PA. In another embodiment, a hybrid PA including a first stage linear PA and a second stage switch-mode PA is implemented in a transmitter. The hybrid PA selectively connects the output of the first stage linear PA to one of the input of the second stage switch-mode PA and the output of the hybrid PA, depending on the output power level of the first stage linear PA, the output power level of the hybrid PA, or a requirement indicated by a transmit power control (TPC) command.

    76.
    发明专利
    未知

    公开(公告)号:NO20060035L

    公开(公告)日:2006-01-04

    申请号:NO20060035

    申请日:2006-01-04

    Abstract: A method and system for determining at least one DC offset compensation value used to suppress carrier leakage occurring on real and imaginary signal paths in an analog radio transmitter when a significant temperature change in the transmitter is detected. At least one DC offset signal having a level that corresponds to the at least one DC offset compensation value is provided to a digital DC offset compensation module which adjusts the DC level of at least one of the real and imaginary signal paths.

    Acquisition circuit for low chip rate option for mobile telecommunication system

    公开(公告)号:AU2002347866B2

    公开(公告)日:2005-11-17

    申请号:AU2002347866

    申请日:2002-10-10

    Abstract: A User Equipment (UE) receives and samples communication signals, where the communication signals have a time frame format, a transmission chip rate and a synchronization code associated with a time slot that includes a midamble that indicates a modulation of the synchronization code where a specified modulation of received synchronization codes identifies the timing for a timeslot in which data is to be received. The UE preferably includes a synchronization code determination circuit, a midamble determination circuit, and a phase modulation sequence detection circuit operatively associated with the midamble determination circuit. The UE can be configured for use with the low chip rate option of the Third Generation Partnership Project (3GPP) Universal Mobile Telecommunication System (UMTS) standards that employ a predefined set of downlink SYNC codes that point to midambles which indicate SYNC code modulation sequence to enable reading of data in a subsequent Broadcast Channel (BCH) message.

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