Method of controlling output power in a mobile radio communication system
First Claim
1. In a cellular mobile radio communications system, a method of controlling the output power of radio signals transmitted from a transmitter to a receiver, wherein said output power of said transmitter is controlled in dependence on a parameter, said parameter being a function of distance between said transmitter and said receiver wherein said output power of said transmitter is proportional to said distance between said transmitter and said receiver and approaches a predetermined minimum output power as said distance approaches zero and received power from said transmitter is inversely proportional to said distance between said transmitter and said receiver when said distance approaches zero.
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Abstract
The invention relates to a method of controlling, in a cellular mobile radio communication system, the output power of radio signals transmitted from a transmitter to a receiver located in the same cell as the transmitter. The method comprises controlling the output power of the transmitter in dependence of a parameter, that is characteristic of the distance between transmitter and receiver, to approximately follow, from a predetermined maximum output power that is transmitted when the distance between the transmitter and receiver is the maximum within the cell, a first function that monotonically decreases with decreasing distance and approaches a predetermined minimum output power as the distance approaches zero, so that the power of the transmitted radio signals as received by the receiver from a minimum received power, that is received when the distance between transmitter and receiver is the maximum within the cell, approximately follows a second function that monotonically increases with decreasing distance and approaches a maximum received power as the distance approaches zero.
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14 Claims
- 1. In a cellular mobile radio communications system, a method of controlling the output power of radio signals transmitted from a transmitter to a receiver, wherein said output power of said transmitter is controlled in dependence on a parameter, said parameter being a function of distance between said transmitter and said receiver wherein said output power of said transmitter is proportional to said distance between said transmitter and said receiver and approaches a predetermined minimum output power as said distance approaches zero and received power from said transmitter is inversely proportional to said distance between said transmitter and said receiver when said distance approaches zero.
Specification