Method and apparatus to implement security in a long term evolution wireless device
AssigneeInterDigital Technology Corporation
InventorsRajat P. Mukherjee, Peter S. Wang, Mohammed Sammour, Shankar Somasundaram
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Abstract
A wireless transmit receive unit (WTRU) is configured to receive unciphered and ciphered messages. The unciphered messages include identity requests, authentication requests, non-access stratum (NAS) security mode commands and tracking area update responses. The ciphered messages may come from the NAS and a Radio Resource Controller (RRC). The messages are ciphered using security keys.
Claims74
A wireless transmit/receive unit (WTRU) configured to implement security in Long Term Evolution (LTE) wireless communications, the WTRU comprising:
- a receiver configured to receive a non-access stratum (NAS) message, the NAS message containing security parameters;
- and
- a processor configured to:
- determine whether the security parameters are correct;
- and
- perform a security procedure based on the determination.
A method for implementing security in a Long Term Evolution (LTE) wireless device, the method comprising:
- receiving a non-access stratum (NAS) message, the NAS message containing security parameters;
- determining whether the security parameters are correct;
- and
- performing a security procedure based on the determination.
A method for implementing security in a Long Term Evolution (LTE) wireless device, the method comprising:
- receiving a Packet Data Convergence Protocol (PDCP) Protocol Data Unit (PDU), the PDCP PDU including security parameters;
- determining whether the security parameters are correct;
- and
- performing a security procedure based on the determination.
A method for implementing security in a Long Term Evolution (LTE) wireless device, the method comprising:
- receiving a message at a Protocol Data Convergence Protocol (PDCP) layer;
- de-ciphering the message;
- and
- performing an integrity check of the received message.
A method for key handling in a wireless transmit/receive unit (WTRU) upon transition from EMM_Connected mode to EMM_Idle mode, the method comprising:
- indicating the transition to a storage entity in the WTRU;
- and
- deleting a first set of keys.
Dependencies are inferred from the claim text.