In the case of conflict between the information in this Annex and other information in the main body of the present document, the information in the main body takes precedence.
The following Tables list the functions and procedures that are:
Supported or not supported over NB-IoT RAT, including whether for CP CIoT EPS Optimisation only, UP CIoT EPS Optimisation only or both.
Optional for the UE and/or network when using NB-IoT RAT.
The Tables M-1 to M-5 are ordered by clause number according to the present specification. The Table M-6 is ordered by clause number according to
. The notation "CP/UP/Both" indicates whether a particular item is supported for CP CIoT EPS Optimisation only, UP CIoT EPS Optimisation only or both.
Mobility management functions
Inter-RAT idle mode NAS mobility (WB-E_UTRAN, UTRAN, GERAN)
IMS voice over PS session supported indication
Voice domain preference and UE usage setting
Preferred and supported network behaviour
Control Plane data specific NAS level congestion control
Support of Restricted Local Operator Service
Non-IP data delivery (NIDD)
Multimedia Priority Service
Restriction of use of Enhanced Coverage for voice centric UE
Restriction of use of Enhanced Coverage for data centric UE
Restriction of use of Enhanced Coverage
Rate control (Serving PLMN)
Inter-UE QoS for NB-IoT UEs using Control Plane CIoT EPS Optimisation
Whether the non-IP PDN connection is provided via SCEF or over SGi is transparent to the UE.
Required for inter-RAT idle mode mobility.
At least one of NIDD SCEF and NIDD SGi is required.
IP address allocation (1)
Attach without PDN connectivity
SMS transfer without Combined Attach
Service request procedures
Connection Suspend procedure
Data transport in CP CIoT EPS Optimisation
Reliable data delivery with hop-by-hop acknowledgement
Connection resume procedure
PDN GW pause of charging procedure
GUTI reallocation procedure
UE radio capability match request
Incl. attach without PDN connectivity.
At least one of Normal attach and Attach without PDN connectivity is required.
Incl. inter RAT.
Also supported with CP CIoT EPS Optimisation when the UE/MME also support S1-U data transfer or UP CIoT EPS Optimisation.
Releases the S11-U bearer in the case of CP CIoT EPS Optimisation. RRC Connection release is used with the UE.
ISR aspects optional.
IMS Voice not supported over NB-IoT.
Dedicated bearer activation
Bearer modification with QoS update
PDN GW initiated bearer modification without bearer QoS update
UE-requested bearer resource modification
Optional with CP CIoT EPS Optimisation
E-UTRAN initiated ERAB modification procedure
E-UTRAN initiated UE context modification procedure
Multiple PDN support and PDN activation for UEs supporting Attach without PDN connectivity
DRX and UE-specific DRX parameter handling
RAN information management procedures
MME-initiated procedure on UE's CSG membership change
HeNB multicast packet forwarding function