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US 2002/0159444 A1Published application
Method of checking amount of transmitted data
AssigneeNokia Corporation
InventorsJukka Vialen, Valtteri Niemi
Life of this patent
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AssigneeNokia Corporation
InventorsJukka Vialen, Valtteri Niemi
Estimating the term…
During a connection between a network infrastructure and user equipment a first indication of the amount of data transmitted over the connection is maintained in the network infrastructure and a second indication of the amount data transmitted is maintained in the user equipment. A checking procedure is triggered in response to encountering (402) a predetermined checking value. The checking procedure utilizes integrity protected signalling. During the checking procedure the first indication is compared with the second indication. This checking procedure enables easy discovery of an intruder who either sends and/or receives data on an authorized connection between a network infrastructure and a mobile station, the data transmission being charged from the mobile station.
A method of checking the amount of data transmitted over a connection in a communication system comprising at least one user equipment and a network infrastructure,
A method according to any of the preceding claims, characterized by changing the information needed in the checking procedure between the user equipment and the network infrastructure in prior art integrity protected signalling messages.
A method according to any of the preceding claims, characterized by the predetermined checking value determining the amount of data transmitted between two checking procedures in succession.
A communication system (UMTS) comprising:
A network node (RNC1, RNC2) in a communication system being arranged to establish a connection with user equipment capable of communicating in the communication system, to transmit data over the connection and to signal with the user equipment,
A network node (RNC1, RNC2) in a communication system being arranged to establish a connection with a user equipment capable of the node communicating in the communication system, to transmit data over the connection and to signal to the user equipment,
A network node (RNC1, RNC2) in a communication system being arranged to establish a connection with a user equipment capable of the node communicating in the communication system, to transmit data over the connection and to signal with the user equipment,
User equipment (MS1, MS2) capable of communicating in a communication system and arranged to establish a connection with a network infrastructure in the communication system, to transmit data over the connection and to signal to the network infrastructure,
User equipment (MS1, MS2) capable of communicating in a communication system and arranged to establish a connection with a network infrastructure in the communication system, to transmit data over the connection and to signal to the network infrastructure,
User equipment (MS1, MS2) capable of communicating in a communication system and arranged to establish a connection with a network infrastructure in the communication system, to transmit data over the connection and to signal to the network infrastructure,
Dependencies are inferred from the claim text.