Abstract:
The power levels of signals transmitted by base stations in a communication are controlled. Power level control commands are transmitted from a remote station to base stations from which the remote station receives signals to control the power levels of the signals transmitted by the base stations. A determination is made whether the remote station simultaneously receives a first signal from a first base station and at least one second signal from at least one second base station that include substantially identical message information. The first and second base stations transmit first and second reports of power levels of the first and second signals, respectively, to the controller. The controller compares the first and second reports and transmits first and second commands for adjusting the power levels of the first and second signals to the first and second base stations, respectively. The power level control commands are transmitted from the remote station to the base stations less frequently during macrodiversity to reduce the signalling requirements between the controller and the base stations. Also, the step size of the adjustment of the power levels of the first and second signals by the controller is reduced during macrodiversity to reduce the signalling requirements. This power control method is particularly beneficial for a CDMA system.
Abstract:
A plurality of base stations (BTS3, BTS4, 35) are operated in CDMA macrodiversity mode to communicate a message to a mobile station (11) via an air interface (13). If the message is successfully communicated to one of the base stations via a packet network (23), the base station communicates the message to the mobile station via the air interface using CDMA. Otherwise, the base station refrains from communicating any message to the mobile station.
Abstract:
A plurality of base stations are operated in CDMA macrodiversity mode to communicate a message to a mobile station via an air interface. If the message is successfully communicated to one of the base stations via a packet network, the base station communicates the message to the mobile station via the air interface using CDMA. Otherwise, the base station refrains from communicating any message to the mobile station.
Abstract:
A plurality of base stations are operated in CDMA macrodiversity mode to communicate a message to a mobile station via an air interface. If the message is successfully communicated to one of the base stations via a packet network, the base station communicates the message to the mobile station via the air interface using CDMA. Otherwise, the base station refrains from communicating any message to the mobile station.
Abstract:
En una estación de comunicación operable paratransmitir una señal de comunicación por un canal de comunicación a un dispositivo remoto, la señal de comunicación formada por cuadros de bits de datos, una mejora del aparato para codificar e intercalar bits de datos antes de la transmisión de esto por el canal de comunicación; dicho aparato consta de: un codificador externo acoplado para que se le suministren los cuadros de bits de datos; dicho codificador externo para codificar por lo menos bits de datos seleccionados a través de un primer número seleccionado de cuadros de bits de datos; un intercalador externo acoplado para que se le suministre con cuadros de bits de datos, una vez codificados por dicho codificador externo; dicho intercalador externo para intercalar por lo menos bits de datos seleccionados a través del número seleccionado de los cuadros de bits de datos;un codificador interno acoplado para que se le suministre con cuadros de bits de datos, una vez intercalados por dicho intercalador externo; dicho codificador interno para descodificar por lo menos bits de datos seleccionados de cada cuadro del número seleccionado de los cuadros de bits de datos; y un intercalador interno acoplado para que se le suministre con cuadros de bits de datos una vez codificados por dicho codificador interno; dicho intercalador interno para intercalar por lo menos bits de datos seleccionados a través del número seleccionado de cuadros de los bits de datos.
Abstract:
A plurality of base stations are operated in CDMA macrodiversity mode to communicate a message to a mobile station via an air interface. If the message is successfully communicated to one of the base stations via a packet network, the base station communicates the message to the mobile station via the air interface using CDMA. Otherwise, the base station refrains from communicating any message to the mobile station.