초록 ▼

A cellular radio system and a method for adjusting transmit power during call set-up. The system comprises at least one base station and a group of subscriber equipment communicating with one or more of the base stations. The signal-to-noise ratio between the subscriber equipment and a base station

A cellular radio system and a method for adjusting transmit power during call set-up. The system comprises at least one base station and a group of subscriber equipment communicating with one or more of the base stations. The signal-to-noise ratio between the subscriber equipment and a base station is estimated before an actual connection is set up. In order that the new connection not interfere with the existing connections, a desired power transmit value with which the desired signal-to-noise ratio is obtained is calculated for the transmit power of the transmitter. An initial value for the transmit power is calculated by means of the power-control parameters of the system and a given time constant and the transmission is started with the initial value. The transmit power in increased from the initial value to the desired power transmit value during a given time constant.

대표청구항 ▼

[ What is claimed is:] [1.]1. A method for adjusting a transmit power of a communication over a communication channel in a cellular radio system comprising the steps of:estimating a desired signal-to-noise ratio of the communication over the communication channel between a base station and a subscri

[ What is claimed is:] [1.]1. A method for adjusting a transmit power of a communication over a communication channel in a cellular radio system comprising the steps of:estimating a desired signal-to-noise ratio of the communication over the communication channel between a base station and a subscriber equipment before the communication channel is established;calculating, during a call set-up period, a desired transmit power value for transmitting the communication over the communication channel from a transmitter in the system, wherein the desired signal-to-noise ratio is obtained;calculating, during the call set-up period, an initial transmit power value for transmitting the communication over the communication channel using at least one power control parameter of the system and a predetermined time constant, wherein the initial power value is smaller than the desired power value;initiating a transmission of the communication over the communication channel using the initial transmit power level; andincreasing a transmission power of the communication from the initial transmit power level to the desired transmit power value over a predetermined time period.