Method of controlling the transmitting power in a mobile radio system and corresponding mobile radio system
AssigneeSiemens Aktiengesellschaft
InventorBernhard Raaf
Life of this patent
Estimating the term…
Abstract
A method is provided for controlling the transmitting power in a mobile radio system a corresponding mobile radio system is also provided. A signal emitted from a transmitter is received by a receiver via a transmission channel of the mobile radio system. The transmitted signal is evaluated and a power control information item is generated based on the result of the evaluation. The power control information item is then transmitted back to the transmitter for adjusting the transmitting power. In order to determine the power control information item, the time response of the transmission channel is estimated and the transmitting power needed in the future is deduced therefrom.
Claims32
A method for controlling the transmitting power in a mobile radio system, in which a signal is transmitted from a transmitter via a transmission channel of the mobile radio system and received by a receiver, the method comprising the steps of:
- evaluating the signal received by the receiver
- generating a power control information item based on the evaluation of the received signal;
- transmitting the power control information item to the transmitter;
- adjusting the transmitting power at the transmitter in dependence on the power control information item;
- estimating the behavior of the transmission channel;
- estimating the transmitting power needed based on the result of the estimation of the behavior of the transmission channel;
- wherein the power control information item is generated on the basis of the estimated transmitting power needed and is transmitted to the transmitter;
- and
- the estimated behavior of the transmission channel is determined by prediction and the transmitting power needed in future is estimated in dependence on the result of the prediction of the behavior of the transmission channel.
A mobile radio system comprising;
- a transmitter;
- a receiver for receiving a signal of the transmitter transmitted via a transmission channel of the mobile radio system and for evaluating the received signal in order to generate a power control information item in dependence thereon, and to transmit the power control information item to the transmitter;
- the transmitter being constructed in a manner such that the transmitting power is adjusted in dependence on the power control information of the receiver;
- the receiver being constructed in a manner such that the behavior of the transmission channel is estimated in dependence on the received signal, and the receiver determines the needed transmitting power based on the result of the estimation of the behavior of the transmission channel, and wherein the receiver generates the power control information item and transmits the power control information item to the transmitter on the basis of the determined necessary transmitting power.
Dependencies are inferred from the claim text.