Security verification when resuming an RRC connection
AssigneeTelefonaktiebolaget LM Ericsson (publ)
InventorsGunnar Mildh, Icaro L. J. Da Silva
Life of this patent
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Abstract
According to an aspect, a wireless device sends, while in an RRC inactive state, a message requesting resumption of an RRC connected state. Upon sending the message, the wireless device starts a timer according to a predetermined value. While the timer is running, the wireless device attempts decryption and integrity check handling for packets subsequently received from the wireless network.
Claims19
A method, in a wireless device operating in a wireless network, for providing security of messages, the method comprising:
- generating one or more security keys for encryption and/or integrity protection of signaling and/or data, using one or more security parameters received by the wireless device while in a Radio Resource Control (RRC) inactive state;
- sending, while in the RRC inactive state, a message requesting resumption of an RRC connected state;
- starting a timer according to a predetermined value, upon sending the message;
- and
- while said timer is running, attempting decryption and/or integrity check handling for all packets received from the wireless network, using the generated one or more security keys.
A wireless device configured for operating in a wireless network and for providing security of messages, the wireless device comprising:
- transceiver circuitry;
- and
- processing circuitry operatively associated with the transceiver circuitry and configured to:
- generate one or more security keys for encryption and/or integrity protection of signaling and/or data, using one or more security parameters received by the wireless device while in a Radio Resource Control (RRC) inactive state;
- send, while in the RRC inactive state, a message requesting resumption of an RRC connected state;
- start a timer according to a predetermined value, upon sending the message;
- and
- while said timer is running, attempt decryption and/or integrity check handling for all packets received from the wireless network, using the one or more generated security keys.
Dependencies are inferred from the claim text.