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Content for  TS 23.401  Word version:  18.2.0

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M Functions and procedures over NB-IoT RAT  $ Change history 

 

M  Functions and procedures over NB-IoT RAT |R13|  p. 443

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.
Clause Clause title Support
NB-IoT RAT CP/UP/Both UE NW
4.3.3IP header compression
RoHC (NAS)
YesCPOptionalOptional
RoHC (AS)
YesUPOptionalOptional
4.3.5Mobility management functionsYesBoth
Inter-RAT idle mode NAS mobility (WB-E_UTRAN, UTRAN, GERAN)
YesBoth
Reachability management
YesBothISR OptionalISR Optional
TA list management (2)
YesBoth
ISR
YesBothOptional
Mobility restrictions
YesBoth
IMS voice over PS session supported indication
NoN/AN/AN/A
Voice domain preference and UE usage setting
NoN/AN/AN/A
Preferred and supported network behaviour
YesBoth
4.3.7.1a.2GTP-C Overload ControlYesCPN/A
4.3.7.4MME control of overloadYesBothN/A
Extended Access Barring
NoN/AN/AN/A
4.3.7.4.2.7Control Plane data specific NAS level congestion controlYesCP
4.3.12IMS emergency sessionNoN/AN/AN/A
4.3.12aSupport of Restricted Local Operator ServiceNoN/AN/AN/A
4.3.13Closed Subscriber GroupNoN/AN/AN/A
4.3.17Support for MTC
Low access priority
YesBothOptional
Non-IP data delivery (NIDD)
YesBoth
NIDD SCEF
YesCPN/A (1)Optional (3)
NIDD SGi
YesBothN/A (1)Optional (3)
4.3.18Multimedia Priority ServiceNoN/AN/AN/A
4.3.22Power Save ModeYesBothOptionalOptional
4.3.27aRestriction of use of Enhanced Coverage for voice centric UENoN/AN/AN/A
4.3.27bRestriction of use of Enhanced Coverage for data centric UENoN/AN/AN/A
4.3.28Restriction of use of Enhanced CoverageYesBothOptional
4.3.293GPP PS Data OffYesBothOptionalOptional
4.7QoS
PDN connection to SCEF
YesCPOptional
Dedicated bearer
NoN/AN/AN/A
GBR bearer
NoN/AN/AN/A
Non-GBR bearer
YesUP
Rate control (Serving PLMN)
YesCPOptional
Rate control (APN)
YesBothOptional
4.7.8Inter-UE QoS for NB-IoT UEs using Control Plane CIoT EPS OptimisationYesYesN/AOptional
4.10CIoT EPS Optimisation
UP
YesUPOptionalOptional
CP
YesCP
NOTE 1:
Whether the non-IP PDN connection is provided via SCEF or over SGi is transparent to the UE.
NOTE 2:
Required for inter-RAT idle mode mobility.
NOTE 3:
At least one of NIDD SCEF and NIDD SGi is required.
 
Clause Clause title Support
NB-IoT RAT CP/UP/Both UE NW
5.3.1IP address allocation (1)YesBothNot required for NIDD
5.3.2Attach procedureYesBoth
Normal attach
YesBothOptional (2)
Attach without PDN connectivity
YesBothOptional (2)Optional
Emergency attach
NoN/AN/AN/A
SMS transfer without Combined Attach
YesBothOptional
5.3.3TAU procedureYes (3)Both
5.3.4Service request proceduresYesBoth (4)
5.3.4AConnection Suspend procedureYesUP
5.3.4BData transport in CP CIoT EPS OptimisationYesCP
Reliable data delivery with hop-by-hop acknowledgement
YesCPN/AOptional
5.3.5S1 release procedureYes (5)
5.3.5AConnection resume procedureYesUP
5.3.6APDN-GW pause of charging procedureYesBothN/AOptional
5.3.7GUTI reallocation procedureYesBoth
5.3.8Detach procedureYes (6)Both
5.3.10Security functionYesBoth
AS security
YesUP
NAS security
YesBoth
5.3.14UE radio capability match requestNo (7)N/AN/AN/A
NOTE 1:
Incl. attach without PDN connectivity.
NOTE 2:
At least one of Normal attach and Attach without PDN connectivity is required.
NOTE 3:
Incl. inter RAT.
NOTE 4:
Also supported with CP CIoT EPS Optimisation when the UE/MME also support S1-U data transfer or UP CIoT EPS Optimisation.
NOTE 5:
Releases the S11-U bearer in the case of CP CIoT EPS Optimisation. RRC Connection release is used with the UE.
NOTE 6:
ISR aspects optional.
NOTE 7:
IMS Voice not supported over NB-IoT.
 
Clause Clause title Support
NB-IoT RAT CP/UP/Both UE NW
5.4.1Dedicated bearer activationNoN/AN/AN/A
5.4.2Bearer modification with QoS updateYesUPOptionalOptional
5.4.3PDN-GW initiated bearer modification without bearer QoS updateYesUP
5.4.4Bearer deactivationYesUP
5.4.5UE-requested bearer resource modificationYesBothOptional with CP CIoT EPS Optimisation
5.4.7E-UTRAN initiated ERAB modification procedureNo (1)N/AN/AN/A
5.4.8E-UTRAN initiated UE context modification procedureNo (1)N/AN/AN/A
NOTE 1:
Dual connectivity not supported over NB-IoT RAT.
 
Clause Clause title Support
NB-IoT RAT CP/UP/Both UE NW
5.5HandoverNo
5.5.1Intra-E-UTRAN handoverNoN/AN/AN/A
5.5.2Inter RAT handoverNoN/AN/AN/A
5.6Network assisted cell changeNoN/AN/AN/A
 
Clause Clause title Support
NB-IoT RAT CP/UP/Both UE NW
5.8MBMS (3)(3)(3)(3)(3)
5.10Multiple PDN support and PDN activation for UEs supporting Attach without PDN connectivityYes (1)Both
5.11UE capability handlingYesBoth
5.12Warning message deliveryNoN/AN/AN/A
5.13DRX and UE-specific DRX parameter handlingYes (2)Both
5.13aExtended idle mode DRXYesBothOptionalOptional
5.15RAN information management proceduresNoN/AN/AN/A
5.16MME-initiated procedure on UE's CSG membership changeNoN/AN/AN/A
5.17HeNB multicast packet forwarding functionNoN/AN/AN/A
NOTE 1:
Multiple PDN optional.
NOTE 2:
UE-specific DRX not supported in NB-IoT RAT.
NOTE 3:
See Table M-6.
 
Clause Clause title Support
NB-IoT RAT CP/UP/Both UE NW
4.5.14.3Reliable Data ServiceYesCPOptionalOptional
4.5.15,
5.14		Support of Packet Flow Description management via SCEFYesBothN/AOptional
4.5.16MSISDN-less MO-SMS via T4YesBothOptionalOptional
4.5.18MBMS user service for UEs using power saving functionsYesBothOptionalOptional
4.5.19Enhancements to Location Services for CIoTYesBothOptionalOptional
NOTE:
This table lists MTC/CIoT-related items in TS 23.682 not otherwise specified in the present specification.
 
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$  Change history  p. 447

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