9.2.107 NR UE Security Capabilities
36.4233GPPEvolved Universal Terrestrial Radio Access Network (E-UTRAN)Release 17TSX2 Application Protocol (X2AP)
This IE defines the supported algorithms for encryption and integrity protection in NR as defined in TS 33.401 [18]. The eNBs store and send the complete bitmaps without modification or truncation as specified in TS 36.300 [15].
|
IE/Group Name |
Presence |
Range |
IE type and reference |
Semantics description |
|
NR Encryption Algorithms |
M |
BIT STRING (SIZE(16, …)) |
Each position in the bitmap represents an encryption algorithm: "all bits equal to 0" – UE supports no other NR algorithm than NEA0, "first bit" – 128-NEA1, "second bit" – 128-NEA2, "third bit" – 128-NEA3, “fourth to seventh bit” correspond to bit 4 to bit 1 of octet 3 in the UE Additional Security Capability IE defined in TS 24.301 [14], “eighth to fifteenth bit” correspond to bit 8 to bit 1 of octet 4 in the UE Additional Security Capability IE defined in TS 24.301 [14], other bits reserved for future use. Value ‘1’ indicates support and value ‘0’ indicates no support of the algorithm. Algorithms are defined in TS 33.401 [18]. |
|
|
NR Integrity Protection Algorithms |
M |
BIT STRING (SIZE(16, …)) |
Each position in the bitmap represents an integrity protection algorithm: "all bits equal to 0" – UE supports no other NR algorithm than NIA0, "first bit" – 128-NIA1, "second bit" – 128-NIA2, "third bit" – 128-NIA3, “fourth to seventh bit” correspond to bit 4 to bit 1 of octet 5 in the UE Additional Security Capability IE defined in TS 24.301 [14], “eighth to fifteenth bit” correspond to bit 8 to bit 1 of octet 6 in the UE Additional Security Capability IE defined in TS 24.301 [14], other bits reserved for future use. Value ‘1’ indicates support and value ‘0’ indicates no support of the algorithm. Algorithms are defined in TS 33.401 [18]. |