Back to results
US 8,948,753 B2Granted
Method of providing notification of abnormal conditions during non-access stratum (NAS) message tunneling
AssigneeAlcatel Lucent
InventorsJennifer J. N. Liu, Michael Edwards, Frances Chin, John Gafrick
Life of this patent
Estimating the term…
Abstract
The present invention provides a method that includes generating, in response to a non-access stratum (NAS) message transmitted between a mobility management entity and a visiting location register, a response message including information indicating a message type, an identifier of a mobile unit associated with the NAS message, and a cause associated with generating the response message. The method also includes transmitting the response message.
Claims20
A method, comprising:
- determining, in response to a non-access stratum (NAS) message that is associated with user equipment and transmitted between a mobility management entity and a visiting location register, availability of information identifying said user equipment or availability of information identifying an association between the mobility management entity and the visiting location register for said user equipment;
- generating a response message in response to determining that said information identifying said user equipment or the association is not available, wherein the response message includes information indicating a message type, an identifier of a mobile unit associated with the NAS message, and a cause associated with generating the response message;
- and transmitting the response message.
A method, comprising:
- receiving, in response to a non-access stratum (NAS) message transmitted between a mobility management entity and a visiting location register, a response message including information indicating a message type, an identifier of a mobile unit associated with the NAS message, and a cause associated with generating the response message, wherein the cause indicates unavailability of information identifying said user equipment or unavailability of information identifying an association between the mobility management entity and the visiting location register for said user equipment;
- and performing at least one corrective action for at least one of the mobility management entity or the visiting location register based on the cause indicated in the response message.
Dependencies are inferred from the claim text.