Method for regulating transmission power in a radiocommunications system
OwnerMarkus Dillinger, Juergen Gronau +2inventors
InventorsMarkus Dillinger, Juergen Gronau, Christian Lueders, Markus Quente
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Abstract
A method and communications system regulate the transmission power of stations in a radiocommunications system for managing a plurality of connections between individual stations which communicate with each other through a radio interface. Usually, an appropriate connection quality value (target-SIR) is set for each individual connection in order to achieve a desired connection quality (SBER). The connection quality value (target-SIR) is modified for the individual connection in order to improve an average connection quality (ΣBER) of a number of connections.
Claims13
A method for controlling the transmission power of stations (BS, MS) in a radio communication system for administering a multiplicity of connections (V) between individual stations (BS, MS) communicating with one another over a radio interface (V, BCCH, FACH), in which a corresponding service level value (target SIR) is set for each individual connection (V) in order to achieve a required service level (SBER), and the service level value (target SIR) for the individual connection (V) is changed in order to improve an average service level (ΣBER) of a multiplicity of connections (V).
The method as claimed in a preceding claim, in which the service level value (target SIR) for the individual connection (V) is a required signal-to-interference ratio value (SIR).
The method as claimed in a preceding claim, in which the service level value (target SIR) is used as reference value for controlling the power in a fast control loop.
The method as claimed in a preceding claim, in which the service level value (target SIR) is selected in dependence on the load and/or in dependence on other quantities directly related to the load, particularly the interference, of a multiplicity of connections (V) or of all connections (V).
The method as claimed in a preceding claim, in which the service level value (target SIR) is at least taken from a look-up table (LU).
The method as claimed in a preceding claim, in which, in order to determine the average service level (ΣBER) of the multiplicity of connections (V), measurements of the total throughput and of the quality of service of the multiplicity of connections (V) are performed.
A station (BS, MS) for a communication system as claimed in claim 13, characterized in that the station is a base station (BS) or a data terminal, particularly a mobile station (MS).
Dependencies are inferred from the claim text.