Location of a mobile station in a telecommunications system

The invention relates to a providing in a telecommunications system and mobile station and location information method, a telecommunications system comprises multiple service region; and service area is sleeved with a service area identifier, wherein the method comprises the steps: The support with a telecommunications system and mobile station related service area; identifierTo be used to the service area identifier the predetermined square, thereby selecting a mobile station and multiple possibility service area identifiers on a mobile station related service area; identifierBased on the selecting service area identifier, provided with a mobile station associated position information.