Initial security activation for medium access control layer
AssigneeTelefonaktiebolaget LM Ericsson (publ)
InventorsIcaro Leonardo Da Silva, Prajwol Kumar Nakarmi
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Abstract
A user equipment receives a first message for initial Access Stratum (AS) security activation via a higher layer protocol, wherein the first message includes configuration information for security in a lower layer protocol and the first message is included in a second message of the lower layer protocol. In response to receiving the first message, the UE derives an integrity key for the lower layer protocol based on the configuration information, and it performs an integrity check on the second message based on the derived integrity key.
Claims24
A method performed by a user equipment (UE), comprising:
- receiving a first message for initial Access Stratum (AS) security activation via a higher layer protocol, wherein the first message includes configuration information for security in a lower layer protocol responsible for radio resource allocation, wherein the first message is included in a second message of the lower layer protocol;
- in response to receiving the first message, deriving an integrity key for the lower layer protocol based on the configuration information;
- and
- performing an integrity check on the second message based on the derived integrity key.
A method performed by a network node, comprising:
- transmitting a first message to a user equipment (UP) for initial Access Stratum (AS) security activation via a higher layer protocol, wherein the first message includes configuration information for security in a lower layer protocol responsible for radio resource allocation, and the first message is included in a second message of the lower layer protocol;
- deriving an integrity key for the lower layer protocol based on the configuration information included in the first message;
- and
- integrity protecting the second message based on the derived integrity key.
A user equipment (UE) comprising:
- processing circuitry and memory collectively configured to perform operations comprising:
- receiving a first message for initial Access Stratum (AS) security activation via a higher layer protocol, wherein the first message includes configuration information for security in a lower layer protocol responsible for radio resource allocation, wherein the first message is included in a second message of the lower layer protocol;
- in response to receiving the first message, deriving an integrity key for the lower layer protocol based on the configuration information included in the first message;
- and
- performing an integrity check on the second message based on the derived integrity key.
A network node comprising:
- processing circuitry and memory collectively configured to perform operations comprising:
- transmitting to a user equipment (UE) a first message for initial Access Stratum (AS) security activation via a higher layer protocol, wherein the first message includes configuration information for security in a lower layer protocol responsible for radio resource allocation, and the first message is included in a second message of the lower layer protocol;
- deriving an integrity key for the lower layer protocol based on the configuration information included in the first message;
- and
- integrity protecting the second message based on the derived integrity key.
Dependencies are inferred from the claim text.