ETSI TS 125 427 V17.0.0 (2022-04)

Universal Mobile Telecommunications System (UMTS); UTRAN Iub/Iur interface user plane protocol for DCH data streams (3GPP TS 25.427 version 17.0.0 Release 17)

RTS/TSGR-0325427vh00

General Information

• Status: Not Published
• Technical Committee: 3GPP RAN 3 - lub specification, lur specification, lu specification and UTRAN & O&M
• Current Stage: 12 - Completion
• Completion Date: 29-Apr-2022

Standards Content (Sample)

ETSI TS 125 427 V17.0.0 (2022-04)






TECHNICAL SPECIFICATION
Universal Mobile Telecommunications System (UMTS);
UTRAN Iub/Iur interface user plane protocol for
DCH data streams
(3GPP TS 25.427 version 17.0.0 Release 17)

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3GPP TS 25.427 version 17.0.0 Release 17 1 ETSI TS 125 427 V17.0.0 (2022-04)

Reference
RTS/TSGR-0325427vh00
Keywords
UMTS
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ETSI

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3GPP TS 25.427 version 17.0.0 Release 17 2 ETSI TS 125 427 V17.0.0 (2022-04)
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Legal Notice
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ETSI

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3GPP TS 25.427 version 17.0.0 Release 17 3 ETSI TS 125 427 V17.0.0 (2022-04)
Contents
Intellectual Property Rights . 2
Legal Notice . 2
Modal verbs terminology . 2
Foreword . 6
1 Scope . 7
2 References . 7
3 Definitions and abbreviations . 7
3.1 Definitions . 7
3.2 Abbreviations . 8
3.3 Specification Notations . 8
4 General aspects . 9
4.1 DCH and E-DCH FP services . 10
4.2 Services expected from the Data Transport Network layer . 10
4.3 Protocol Version . 10
5 DCH Frame Protocol procedures . 11
5.1 Data Transfer . 11
5.1.0 General . 11
5.1.1 Uplink for DCH . 11
5.1.1a Uplink for E-DCH . 11
5.1.2 Downlink . 12
5.2 Timing Adjustment. 13
5.3 DCH Synchronisation . 14
5.4 Outer Loop PC Information Transfer [FDD, 1.28 Mcps TDD] . 14
5.5 Node Synchronisation . 14
5.6 Rx Timing Deviation Measurement [3.84 Mcps and 7.68 Mcps TDD] . 15
5.7 DSCH TFCI Signalling [FDD] . 15
5.8 Radio Interface Parameter Update [FDD] . 15
5.9 Timing Advance [3.84 Mcps and 7.68 Mcps TDD] . 16
5.10 General . 16
5.10.1 Transport bearer replacement . 16
5.10.2 Transport channel addition . 17
5.11 Generation of subframe number . 17
5.12 Generation of number of HARQ retransmissions . 17
5.13 Indication of HARQ failure . 18
5.14 TNL Congestion Indication . 19
6 Frame structure and coding . 19
6.1 General . 19
6.1.1 General principles for the coding . 20
6.2 Data frames . 20
6.2.1 Introduction. 20
6.2.2 UL DATA FRAME . 20
6.2.2.1 UL DATA FRAME FOR DCH . 20
6.2.2.2 UL DATA FRAME FOR E-DCH TYPE 1 . 21
6.2.2.3 UL DATA FRAME FOR E-DCH TYPE 2 . 23
6.2.3 DL DATA FRAME . 24
6.2.4 Coding of information elements in data frames . 24
6.2.4.1 Header CRC . 24
6.2.4.2 Frame Type (FT) . 25
6.2.4.3 Connection Frame Number (CFN) . 25
6.2.4.4 Transport Format Indicator (TFI) . 25
6.2.4.5 Quality Estimate (QE) . 25
6.2.4.6 Transport Block (TB) . 26
ETSI

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3GPP TS 25.427 version 17.0.0 Release 17 4 ETSI TS 125 427 V17.0.0 (2022-04)
6.2.4.7 CRC indicator (CRCI). 26
6.2.4.8 Payload CRC . 26
6.2.4.9 Spare Extension . 26
6.2.4.10 Subframe Number . 26
6.2.4.11 Number of HARQ Retransmissions, NHR . 26
6.2.4.12 Number of Subframes . 27
6.2.4.13 Number of MAC-es PDUs . 27
6.2.4.14 Data Description Indicator, DDI . 27
6.2.4.15 Number of MAC-d PDUs, N. 27
6.2.4.16 FSN – Frame Sequence Number . 27
6.2.4.17 Number of MAC-is PDUs . 27
6.2.4.18 User Buffer size . 27
6.2.4.19 Number of MAC-is SDU in frame . 28
6.2.4.20 MAC-is PDU descriptor . 28
6.2.4.21 UL Multiplexing Information (UL Mux Info)[FDD] . 28
6.2.4.22 UL CLTD Removal (CLTD-R)[FDD] . 28
6.3 Control frames . 28
6.3.1 Introduction. 28
6.3.2 Header structure of the control frames . 29
6.3.2.1 Frame CRC . 29
6.3.2.2 Frame Type (FT) . 29
6.3.2.3 Control Frame Type . 29
6.3.3 Payload structure and information elements . 30
6.3.3.1 TIMING ADJUSTMENT . 30
6.3.3.1.1 Payload structure . 30
6.3.3.1.2 CFN . 30
6.3.3.1.3 Time of Arrival (ToA) . 30
6.3.3.1.4 Spare Extension . 30
6.3.3.2 DL SYNCHRONISATION . 30
6.3.3.2.1 Payload structure . 30
6.3.3.2.2 CFN . 30
6.3.3.2.3 Spare Extension . 31
6.3.3.3 UL SYNCHRONISATION . 31
6.3.3.3.1 Payload structure . 31
6.3.3.3.2 CFN . 31
6.3.3.3.3 Time of Arrival (ToA) . 31
6.3.3.3.4 Spare Extension . 31
6.3.3.4 OUTER LOOP POWER CONTROL [FDD, 1.28Mcps TDD] . 31
6.3.3.4.1 Payload structure . 31
6.3.3.4.2 SIR Target . 32
6.3.3.4.3 Spare Extension . 32
6.3.3.4.4 UL Mux Info . 32
6.3.3.5 DL NODE SYNCHRONISATION . 32
6.3.3.5.1 Payload structure . 32
6.3.3.5.2 T1 . 32
6.3.3.5.3 Spare Extension . 32
6.3.3.6 UL NODE SYNCHRONISATION . 32
6.3.3.6.1 Payload structure . 32
6.3.3.6.2 T1 . 33
6.3.3.6.3 T2 . 33
6.3.3.6.4 T3 . 33
6.3.3.6.5 Spare Extension . 33
6.3.3.7 RX TIMING DEVIATION [3.84 Mcps and 7.68Mcps TDD] . 33
6.3.3.7.1 Payload structure . 33
6.3.3.7.2 Rx Timing Deviation [3.84 Mcps TDD] . 34
6.3.3.7.2A Rx Timing Deviation [7.68 Mcps TDD] . 34
6.3.3.7.2B E-RUCCH Flag . 35
6.3.3.7.3 Spare Extension . 35
6.3.3.7.4 CFN . 35
6.3.3.7.5 New IE Flags . 35
6.3.3.8 DSCH TFCI SIGNALLING [FDD] . 35
6.3.3.8.1 Payload structure . 35
ETSI

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3GPP TS 25.427 version 17.0.0 Release 17 5 ETSI TS 125 427 V17.0.0 (2022-04)
6.3.3.8.2 TFCI (field 2) . 35
6.3.3.8.3 Spare Extension . 35
6.3.3.8.4 CFN . 36
6.3.3.9 RADIO INTERFACE PARAMETER UPDATE [FDD] . 36
6.3.3.9.1 Payload structure . 36
6.3.3.9.2 Radio Interface Parameter Update flags . 36
6.3.3.9.3 TPC Power Offset (TPC PO) . 37
6.3.3.9.4 Spare Extension . 37
6.3.3.9.4A CFN . 37
6.3.3.9.5 DPC Mode . 37
6.3.3.9.6 TFCI Power Offset (TFCI PO) . 37
6.3.3.9.7 TFCI Power Offset for primary cell (TFCI PO_primary) . 37
6.3.3.9.8 Multiple RL Sets Indicator . 37
6.3.3.9.9 Maximum UE TX Power . 37
6.3.3.9.10 Multiple RL Sets Indicator on the secondary uplink frequency . 38
6.3.3.10 TIMING ADVANCE [3.84Mcps and 7.68 Mcps TDD] . 38
6.3.3.10.1 Payload structure . 38
6.3.3.10.2 CFN . 38
6.3.3.10.3 TA [3.84 Mcps] . 39
6.3.3.10.3A TA [7.68 Mcps] . 39
6.3.3.10.4 Spare Extension . 39
6.3.3.10.5 New IE Flags [7.68Mcps TDD] . 39
6.3.3.11 TNL CONGESTION INDICATION . 39
6.3.3.11.1 Payload structure . 39
6.3.3.11.2 Congestion Status . 39
6.3.3.11.3 Spare Extension . 39
7 Handling of Unknown, Unforeseen and Erroneous Protocol Data . 40
7.1 General . 40
7.2 Error detection . 40
7.2.1 CRC Calculation . 40
7.2.1.1 Relation between input and output of the Cyclic Redundancy Check . 40
Annex A (informative): Change history . 42
History . 44

ETSI

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3GPP TS 25.427 version 17.0.0 Release 17 6 ETSI TS 125 427 V17.0.0 (2022-04)
Foreword
rd
This Technical Specification (TS) has been produced by the 3 Generation Partnership Project (3GPP).
The contents of the present docume
...