Method for controlling transmitting power and radio system
First Claim
1. A method for controlling transmitting power in a radio system comprising one base station or several base stations (100) communicating with subscriber terminal equipments (106 to 110) located within its area, in which method the transmitting power of the equipments is controlled stepwise by a control commands such that a difference in transmitting power level exists between adjacent steps and the step size of a change in transmitting power is adjusted separately for each connection, characterized in that the step size is adjusted on the basis of several received successive power control commands in such a way that from the power control commands to be examined is calculated the number of two successive commands in different directions in proportion to the number of the commands to be examined and that the calculated proportion is compared to one or several predetermined reference values, and that the difference in transmitting power level between adjacent steps is adjusted on the basis of said comparison.
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Accused Products
Abstract
A radio system and a method for controlling transmitting power in the radio system, the radio system being composed of at least one base station communicating with one or more subscriber terminals located within a coverage area. The transmitting power of each subscriber terminal is controlled stepwise by power control commands and the step size of a change in transmitting power is adjusted separately for each connection. In order to achieve an accurate and fast power control, the step size is adjusted on the basis of several received successive power control commands by calculating, from the power control commands, the number of two successive commands in different directions in proportion to the number of commands examined, the calculated proportion is compared to a reference value and the step size is adjusted on the basis of that comparison.
31 Citations
16 Claims
- 1. A method for controlling transmitting power in a radio system comprising one base station or several base stations (100) communicating with subscriber terminal equipments (106 to 110) located within its area, in which method the transmitting power of the equipments is controlled stepwise by a control commands such that a difference in transmitting power level exists between adjacent steps and the step size of a change in transmitting power is adjusted separately for each connection, characterized in that the step size is adjusted on the basis of several received successive power control commands in such a way that from the power control commands to be examined is calculated the number of two successive commands in different directions in proportion to the number of the commands to be examined and that the calculated proportion is compared to one or several predetermined reference values, and that the difference in transmitting power level between adjacent steps is adjusted on the basis of said comparison.
- 9. A radio system comprising transceivers (100, 106 to 110), which carry out transmitting power control stepwise by means of power control commands separately for each connection by varying steps, characterized in that the transceivers (100, 106 to 110) of the system comprise means (216) for storing information relating to successive power control commands such that a difference in transmitting power level exists between adjacent steps, means (216) for calculating from the stored information the proportion of the number of the commands to be examined, means (216) for comparing the obtained proportion to a predetermined reference value and means (216) for adjusting the difference in transmitting power level between adjacent steps on the basis of the comparison.
Specification