UPUMACI_{AUSF}, UPUMACI_{UE} and Counter_{UPU} are coded as specified in TS 33.501  
UPU data type (octet 4, bit 1)  
0  The UE parameters update transparent container carries a UE parameters update list 
1  The UE parameters update transparent container carries an acknowledgement of successful reception of a UE parameters update list 
Acknowledgement (ACK) value (octet 4, bit 2)  
0  acknowledgement not requested 
1  acknowledgement requested 
Reregistration (REG) value (octet 4, bit 3)  
0  reregistration not requested 
1  reregistration requested 
UE parameters update data set type  
Bits
4 3 2 1  
0 0 0 1  Routing indicator update data 
0 0 1 0  Default configured NSSAI update data 
All other values are reserved The secured packet is coded as specified in TS 31.115. The default configured NSSAI is encoded as the value part of the NSSAI IE (see subclause 9.11.3.37).  
5GS encryption algorithms supported (see NOTE 1) (octet 3)  
5GS encryption algorithm 5GEA0 supported (octet 3, bit 8)  
0  5GS encryption algorithm 5GEA0 not supported 
1  5GS encryption algorithm 5GEA0 supported 
5GS encryption algorithm 1285GEA1 supported (octet 3, bit 7)  
0  5GS encryption algorithm 1285GEA1 not supported 
1  5GS encryption algorithm 1285GEA1 supported 
5GS encryption algorithm 1285GEA2 supported (octet 3, bit 6)  
0  5GS encryption algorithm 1285GEA2 not supported 
1  5GS encryption algorithm 1285GEA2 supported 
5GS encryption algorithm 1285GEA3 supported (octet 3, bit 5)  
0  5GS encryption algorithm 1285GEA3 not supported 
1  5GS encryption algorithm 1285GEA3 supported 
5GS encryption algorithm 5GEA4 supported (octet 3, bit 4)  
0  5GS encryption algorithm 5GEA4 not supported 
1  5GS encryption algorithm 5GEA4 supported 
5GS encryption algorithm 5GEA5 supported (octet 3, bit 3)  
0  5GS encryption algorithm 5GEA5 not supported 
1  5GS encryption algorithm 5GEA5 supported 
5GS encryption algorithm 5GEA6 supported (octet 3, bit 2)  
0  5GS encryption algorithm 5GEA6 not supported 
1  5GS encryption algorithm 5GEA6 supported 
5GS encryption algorithm 5GEA7 supported (octet 3, bit 1)  
0  5GS encryption algorithm 5GEA7 not supported 
1  5GS encryption algorithm 5GEA7 supported 
5GS integrity algorithms supported (see NOTE 2) (octet 4)  
5GS integrity algorithm 5GIA0 supported (octet 4, bit 8)  
0  5GS integrity algorithm 5GIA0 not supported 
1  5GS integrity algorithm 5GIA0 supported 
5GS integrity algorithm 1285GIA1 supported (octet 4, bit 7)  
0  5GS integrity algorithm 1285GIA1 not supported 
1  5GS integrity algorithm 1285GIA1 supported 
5GS integrity algorithm 1285GIA2 supported (octet 4, bit 6)  
0  5GS integrity algorithm 1285GIA2 not supported 
1  5GS integrity algorithm 1285GIA2 supported 
5GS integrity algorithm 1285GIA3 supported (octet 4, bit 5)  
0  5GS integrity algorithm 1285GIA3 not supported 
1  5GS integrity algorithm 1285GIA3 supported 
5GS integrity algorithm 5GIA4 supported (octet 4, bit 4)  
0  5GS integrity algorithm 5GIA4 not supported 
1  5GS integrity algorithm 5GIA4 supported 
5GS integrity algorithm 5GIA5 supported (octet 4, bit 3)  
0  5GS integrity algorithm 5GIA5 not supported 
1  5GS integrity algorithm 5GIA5 supported 
5GS integrity algorithm 5GIA6supported (octet 4, bit 2)  
0  5GS integrity algorithm 5GIA6 not supported 
1  5GS integrity algorithm 5GIA6 supported 
5GS integrity algorithm 5GIA7 supported (octet 4, bit 1)  
0  5GS integrity algorithm 5GIA7 not supported 
1  5GS integrity algorithm 5GIA7 supported 
EPS encryption algorithms supported (see NOTE 3) (octet 5)  
EPS encryption algorithm EEA0 supported (octet 5, bit 8)  
0  EPS encryption algorithm EEA0 not supported 
1  EPS encryption algorithm EEA0 supported 
EPS encryption algorithm 128EEA1 supported (octet 5, bit 7)  
0  EPS encryption algorithm 128EEA1 not supported 
1  EPS encryption algorithm 128EEA1 supported 
EPS encryption algorithm 128EEA2 supported (octet 5, bit 6)  
0  EPS encryption algorithm 128EEA2 not supported 
1  EPS encryption algorithm 128EEA2 supported 
EPS encryption algorithm 128EEA3 supported (octet 5, bit 5)  
0  EPS encryption algorithm 128EEA3 not supported 
1  EPS encryption algorithm 128EEA3 supported 
EPS encryption algorithm EEA4 supported (octet 5, bit 4)  
0  EPS encryption algorithm EEA4 not supported 
1  EPS encryption algorithm EEA4 supported 
EPS encryption algorithm EEA5 supported (octet 5, bit 3)  
0  EPS encryption algorithm EEA5 not supported 
1  EPS encryption algorithm EEA5 supported 
EPS encryption algorithm EEA6 supported (octet 5, bit 2)  
0  EPS encryption algorithm EEA6 not supported 
1  EPS encryption algorithm EEA6 supported 
EPS encryption algorithm EEA7 supported (octet 5, bit 1)  
0  EPS encryption algorithm EEA7 not supported 
1  EPS encryption algorithm EEA7 supported 
EPS integrity algorithms supported (see NOTE 4) (octet 6)  
EPS integrity algorithm EIA0 supported (octet 6, bit 8)  
0  EPS integrity algorithm EIA0 not supported 
1  EPS integrity algorithm EIA0 supported 
EPS integrity algorithm 128EIA1 supported (octet 6, bit 7)  
0  EPS integrity algorithm 128EIA1 not supported 
1  EPS integrity algorithm 128EIA1 supported 
EPS integrity algorithm 128EIA2 supported (octet 6, bit 6)  
0  EPS integrity algorithm 128EIA2 not supported 
1  EPS integrity algorithm 128EIA2 supported 
EPS integrity algorithm 128EIA3 supported (octet 6, bit 5)  
0  EPS integrity algorithm 128EIA3 not supported 
1  EPS integrity algorithm 128EIA3 supported 
EPS integrity algorithm EIA4 supported (octet 6, bit 4)  
0  EPS integrity algorithm EIA4 not supported 
1  EPS integrity algorithm EIA4 supported 
EPS integrity algorithm EIA5 supported (octet 6, bit 3)  
0  EPS integrity algorithm EIA5 not supported 
1  EPS integrity algorithm EIA5 supported 
EPS integrity algorithm EIA6 supported (octet 6, bit 2)  
0  EPS integrity algorithm EIA6 not supported 
1  EPS integrity algorithm EIA6 supported 
EPS integrity algorithm EIA7 supported (octet 6, bit 1)  
0  EPS integrity algorithm EIA7 not supported 
1  EPS integrity algorithm EIA7 supported 
For the UE not supporting any security algorithm for AS security over EUTRA connected to 5GCN, all bits in octets 5 to 10 are spare and shall be ignored, if the respective octet is received with the information element. For the UE supporting at least one security algorithm for AS security over EUTRA connected to 5GCN all bits in octets 7 to 10 are spare and shall be ignored, if the respective octet is received with the information element. If the AMF receives any of the octets 7 to 10 (NOTE 5), it shall store the octets as received and include them when sending the UE security capability information element to the UE.  
NOTE 1:
The code points in octet 3 are used to indicate support for 5GS encryption algorithms for NAS security in N1 mode and support for 5GS encryption algorithms for AS security over NR.
NOTE 2:
The code points in octet 4 are used to indicate support for 5GS integrity algorithms for NAS security in N1 mode and support for 5GS integrity algorithms for AS security over NR.
NOTE 3:
The code points in octet 5 are used to indicate support for EPS encryption algorithms for AS security over EUTRA connected to 5GCN.
NOTE 4:
The code points in octet 6 are used to indicate support for EPS integrity algorithms for AS security over EUTRA connected to 5GCN.
NOTE 5:
The AMF can receive this information element also from another AMF or MME during N1 mode to N1 mode or S1 mode to N1 mode handover preparation.

UE's usage setting (octet 3, bit 1)  
0  voice centric 
1  data centric 
All other bits in the octet 3 are spare and shall be coded as zero.  
EMM registration status (S1 mode reg) (octet 3, bit 1)  
0  UE is not in EMMREGISTERED state 
1  UE is in EMMREGISTERED state 
5GMM registration status (N1 mode reg) (octet 3, bit 2)  
0  UE is not in 5GMMREGISTERED state 
1  UE is in 5GMMREGISTERED state 
All other bits in the octet 3 are spare and shall be coded as zero.  
PSI(x) shall be coded as follows:  
PSI(0):  
Bit 1 of octet 3 is spare and shall be coded as zero.  
PSI(1)  PSI(15):  
0  indicates that no uplink data are pending for the corresponding PDU session identity or the PDU session is in PDU SESSION INACTIVE state or is in PDU SESSION ACTIVE state with userplane resources already established. 
1  indicates that uplink data are pending for the corresponding PDU session identity and the userplane resources for the corresponding PDU session are not established. 
All bits in octet 5 to 34 are spare and shall be coded as zero, if the respective octet is included in the information element.  