Identifier allocation method
First Claim
1. A network entity for operating in a radio access network of a cellular telecommunications network and communicating with mobile stations within an area covered by the radio access network, the mobile stations being operable in one of at least a first state in which the mobile station listens to a paging channel, a second state in which the monitors a forward access channel, and a third state in which a dedicated transport channel is allocated to a mobile station, said network entity comprising:
- at least one radio network controller;
means for determining whether a state change to the second state is required for a first mobile station in communication with the radio access network;
means for allocating a temporary mobile station identifier unique within a cell of the radio access network for the first mobile station if the state change to the second state is required; and
means for indicating the temporary mobile station identifier to the mobile station.
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Abstract
The invention concerns signalling methods in cellular telecommunication systems, especially in so called third generation cellular systems, such as the UMTS system. In the inventive method the network checks, if the mobile station is in or is about to enter into such a state, in which the mobile station needs a c-RNTI, and if that is the case, the c-RNTI is indicated to the mobile station. Preferably, the indication is effected by attaching the c-RNTI identifier to a message, which causes the change of the mobile station to the state, in which the mobile station needs the c-RNTI identifier.
24 Citations
15 Claims
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1. A network entity for operating in a radio access network of a cellular telecommunications network and communicating with mobile stations within an area covered by the radio access network, the mobile stations being operable in one of at least a first state in which the mobile station listens to a paging channel, a second state in which the monitors a forward access channel, and a third state in which a dedicated transport channel is allocated to a mobile station, said network entity comprising:
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at least one radio network controller; means for determining whether a state change to the second state is required for a first mobile station in communication with the radio access network; means for allocating a temporary mobile station identifier unique within a cell of the radio access network for the first mobile station if the state change to the second state is required; and means for indicating the temporary mobile station identifier to the mobile station. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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Specification