11.2 Processing delay requirements for RRC procedures

36.3313GPPEvolved Universal Terrestrial Radio Access (E-UTRA)Protocol specificationRadio Resource Control (RRC)Release 15TS

The UE performance requirements for RRC procedures are specified in the following tables, by means of a value N:

N = the number of 1ms subframes from the end of reception of the E-UTRAN -> UE message on the UE physical layer up to when the UE shall be ready for the reception of uplink grant for the UE -> E-UTRAN response message with no access delay other than the TTI-alignment (e.g. excluding delays caused by scheduling, the random access procedure or physical layer synchronisation).

NOTE: No processing delay requirements are specified for RN-specific procedures.

Figure 11.2-1: Illustration of RRC procedure delay

Table 11.2-1: UE performance requirements for RRC procedures for UEs other than NB-IoT UEs

Procedure title:

E-UTRAN -> UE

UE -> E-UTRAN

N

Notes

RRC Connection Control Procedures

RRC connection establishment

RRCConnectionSetup or RRCConnectionResume

RRCConnectionSetupComplete or RRCConnectionResumeComplete

15 or 3

N = 3 applies for the case of reception of RRCConnectionResume if reducedCP-LatencyEnabled is configured, the UE supports reduced CP latency, and the RRC message only includes MAC and PHY (re-)configurations and does not include (re-)configurations of DRX, SPS, SCells, and MIMO. Further, the UL grant is sent using PDCCH DCI format 0 in common search space. In this scenario, the RRC procedure delay can extend beyond the reception of the UL grant, up to 7 ms.

For other cases N = 15 applies.

RRC connection release

RRCConnectionRelease

NA

RRC connection re-configuration (radio resource configuration)

RRCConnectionReconfiguration

RRCConnectionReconfigurationComplete

15

RRC connection re-configuration (measurement configuration)

RRCConnectionReconfiguration

RRCConnectionReconfigurationComplete

15

RRC connection re-configuration (intra-LTE mobility)

RRCConnectionReconfiguration

RRCConnectionReconfigurationComplete

15

RRC connection reconfiguration (SCell addition/release)

RRCConnectionReconfiguration

RRCConnectionReconfigurationComplete

20

RRC connection reconfiguration (SCG establishment/ release, SCG cell addition/ release)

RRCConnectionReconfiguration

RRCConnectionReconfigurationComplete

20

RRC connection re-configuration (NR measurement configuration)

RRCConnectionReconfiguration

RRCConnectionReconfigurationComplete

15

RRC connection reconfiguration (NR SCG establishment/ /modification/release)

RRCConnectionReconfiguration

RRCConnectionReconfigurationComplete

20

RRC connection re-configuration (intra-LTE mobility with NR SCG establishment/ /modification/release)

RRCConnectionReconfiguration

RRCConnectionReconfigurationComplete

20

RRC connection re-establishment

RRCConnectionReestablishment

RRCConnectionReestablishmentComplete

15

Initial security activation

SecurityModeCommand

SecurityModeCommandComplete/SecurityModeCommandFailure

10

Initial security activation + RRC connection re-configuration (RB establishment)

SecurityModeCommand, RRCConnectionReconfiguration

RRCConnectionReconfigurationComplete

20

The two DL messages are transmitted in the same TTI

EDT

RRCEarlyDataComplete or RRCConnectionRelease for UP-EDT

NA

Paging

Paging

NA

Inter RAT mobility

Handover to E-UTRA

RRCConnectionReconfiguration (sent by other RAT)

RRCConnectionReconfigurationComplete

NA

The performance of this procedure is specified in TS 45.010 [50] in case of handover from GSM and TS 25.133 [29], TS 25.123 [30] in case of handover from UTRA, and TS 38.133 [84] in case of handover from NR.

Handover from E-UTRA

MobilityFromEUTRACommand

NA

The performance of this procedure is specified in TS 36.133 [16]

Handover from E-UTRA to CDMA2000

HandoverFromEUTRAPreparationRequest (CDMA2000)

NA

Used to trigger the handover preparation procedure with a CDMA2000 RAT.

The performance of this procedure is specified in TS 36.133 [16]

Measurement procedures

Measurement Reporting

MeasurementReport

NA

Other procedures

UE capability transfer

UECapabilityEnquiry

UECapabilityInformation

10/ 80

N = 80 applies in case the UE has to report at least one of the following UE capabilities.

– MR-DC band combinations.

– NR band combinations

– EUTRA feature sets

Counter check

CounterCheck

CounterCheckResponse

10

Proximity indication

ProximityIndication

NA

UE information

UEInformationRequest

UEInformationResponse

15

MBMS counting

MBMSCountingRequest

MBMSCountingResponse

NA

MBMS interest indication

MBMSInterestIndication

NA

In-device coexistence indication

InDeviceCoexIndication

NA

UE assistance information

UEAssistanceInformation

NA

SCG failure information

SCGFailureInformation

NA

NR SCG failure information

SCGFailureInformationNR

NA

Sidelink UE information

SidelinkUEInformation

NA

WLAN Connection Status Reporting

WLANConnectionStatusReport

NA

Table 11.2-2: UE performance requirements for RRC procedures for NB-IoT UEs

Procedure title:

E-UTRAN -> UE

UE -> E-UTRAN

N

Notes

RRC Connection Control Procedures

RRC connection establishment

RRCConnectionSetup-NB or RRCConnectionResume-NB

RRCConnectionSetupComplete-NB or RRCConnectionResumeComplete-NB

45

RRC connection release

RRCConnectionRelease-NB

NA

RRC connection re-configuration (radio resource configuration)

RRCConnectionReconfiguration-NB

RRCConnectionReconfigurationComplete-NB

45

RRC connection re-establishment

RRCConnectionReestablishment-NB

RRCConnectionReestablishmentComplete-NB

45

Initial security activation

SecurityModeCommand

SecurityModeCommandComplete/SecurityModeCommandFailure

35

Initial security activation + RRC connection re-configuration (RB establishment)

SecurityModeCommand, RRCConnectionReconfiguration-NB

RRCConnectionReconfigurationComplete-NB

55

The two DL messages are transmitted in the same TTI

EDT

RRCEarlyDataComplete-NB or RRCConnectionRelease-NB for UP-EDT

NA

Paging

Paging-NB

NA

Other procedures

UE capability transfer

UECapabilityEnquiry-NB

UECapabilityInformation-NB

35