| 摘要 |
Whether a service is available for use by a mobile station in a radiocommunication system is ascertained by determining a quality value that represents the mobile station's transmission power capability that is above an amount of transmission power that will be consumed by known losses for the service and determining whether the service is available for use by the mobile station on the basis of a comparison between the quality value and a predetermined number. The quality value may be determined by subtracting the amount of transmission power that will be consumed by known losses for the service from a maximum available power that the mobile station can deliver. Known losses may include the power loss on a channel between the mobile station and a base station, the amount of power that is needed to overcome interference, and the amount of power needed to accommodate the service. The determination of whether the service is available may be displayed to a user of the mobile station, and may be used to activate or abort activation of the service.
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