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RAB Example 1

Parallel CS + PS and associated SRB

This document details 2 simultaneous RABs and associated SRBs from TS32.108

The RABs are:

1.

Conversational symmetrical Circuit Switched 64 kbps

2.

Interactive or Background asymmetric Packet Switched 128 kbps DL, 64 kbps UL

(2)

6.10.2.4.1.52

Conversational / unknown / UL:64 DL:64 kbps / CS RAB +

Interactive or background / UL:64 DL:128 kbps / PS RAB +

UL:3.4 DL:3.4 kbps SRBs for DCCH

Uplink

Transport channel parameters

Transport channel parameters for Conversational / unknown / UL:64 kbps / CS RAB

Higher

layer RAB/Signalling RB RAB

Logical channel type DTCH

RLC mode TM

Payload sizes, bit 640

Max data rate, bps 64000

RLC

TrD PDU header, bit 0

MAC header, bit 0

MAC

MAC multiplexing N/A

TrCH type DCH TB sizes, bit 640 TF0, bits 0x640 TFS TF1, bits 2x640(alt. 4x640) TTI, ms 20(alt. 40) Coding type TC CRC, bit 16

Max number of bits/TTI after channel coding 3948(alt. 7884) Uplink: Max number of bits/radio frame before rate

matching

1974(alt. 1971) Layer 1

RM attribute 150-195

Transport channel parameters for Interactive or background / UL:64 kbps / PS RAB

Higher

layer RAB/Signalling RB RAB

Logical channel type DTCH

RLC mode AM

Payload sizes, bit 320

Max data rate, bps 64000

RLC

AMD PDU header, bit 16

MAC header, bit 0

MAC

MAC multiplexing N/A

TrCH type DCH TB sizes, bit 336 TF0, bits 0x336 TF1, bits 1x336 TF2, bits 2x336 TF3, bits 3x336 TFS TF4, bits 4x336 TTI, ms 20 Coding type TC CRC, bit 16

Max number of bits/TTI after channel coding 4236 Uplink: Max number of bits/radio frame before

rate matching

2118 Layer 1

(3)

Transport channel parameters for UL:3.4 kbps SRBs for DCCH

RAB/signalling RB SRB#1 SRB#2 SRB#3 SRB#4

Higher

layer User of Radio Bearer RRC RRC NAS_DT

High prio

NAS_DT Low prio

Logical channel type DCCH DCCH DCCH DCCH

RLC mode UM AM AM AM

Payload sizes, bit 136 128 128 128

Max data rate, bps 3400 3200 3200 3200

RLC

AMD/UMD PDU header, bit 8 16 16 16

MAC header, bit 4 4 4 4

MAC

MAC multiplexing 4 logical channel multiplexing

TrCH type DCH

TB sizes, bit 148 (alt 0, 148)

TF0, bits 0x148 (alt 1x0) TFS TF1, bits 1x148 TTI, ms 40 Coding type CC 1/3 CRC, bit 16

Max number of bits/TTI before rate matching

516 Uplink: Max number of bits/radio

frame before rate matching 129

Layer 1

RM attribute 155-185

TFCS

TFCS size 20

TFCS (Conv. 64 kbps RAB, I/B 64 kbps RAB, DCCH)=

(TF0, TF0, TF0), (TF0, TF1, TF0), (TF0, TF2, TF0), (TF0, TF3, TF0), (TF0, TF4, TF0), (TF1, TF0, TF0), (TF1, TF1, TF0), (TF1, TF2, TF0), (TF1, TF3, TF0), (TF1, TF4, TF0), (TF0, TF0, TF1), (TF0, TF1, TF1), (TF0, TF2, TF1), (TF0, TF3, TF1), (TF0, TF4, TF1), (TF1, TF0, TF1), (TF1, TF1, TF1), (TF1, TF2, TF1), (TF1, TF3, TF1), (TF1, TF4, TF1)

Physical channel parameters

Min spreading factor 8

Max number of DPDCH data bits/radio frame

4800 DPCH Uplink

(4)

Downlink

Transport channel parameters

Transport channel parameters for Conversational / unknown / DL:64 kbps / CS RAB

Higher layer

RAB/Signalling RB RAB

Logical channel type DTCH

RLC mode TM

Payload sizes, bit 640

Max data rate, bps 64000

RLC

TrD PDU header, bit 0

MAC header, bit 0

MAC

MAC multiplexing N/A

TrCH type DCH TB sizes, bit 640 TF0, bits 0x640 TFS TF1, bits 2x640(alt. 4x640) TTI, ms 20(alt. 40) Coding type TC CRC, bit 16

Max number of bits/TTI after channel coding 3948(alt. 7884) Layer 1

RM attribute 150-195

Transport channel parameters for Interactive or background / DL:128 kbps / PS RAB

Higher layer

RAB/Signalling RB RAB

Logical channel type DTCH

RLC mode AM

Payload sizes, bit 320

Max data rate, bps 128000

RLC

AMD PDU header, bit 16

MAC header, bit 0

MAC

MAC multiplexing N/A

TrCH type DCH TB sizes, bit 336 TF0, bits 0x336 TF1, bits 1x336 TF2, bits 2x336 TF3, bits 4 x336 TFS TF4, bits 8 x336 TTI, ms 20 Coding type TC CRC, bit 16

Max number of bits/TTI after channel coding 8460 Layer 1

(5)

Transport channel parameters for DL:3.4 kbps SRBs for DCCH

RAB/signalling RB SRB#1 SRB#2 SRB#3 SRB#4

Higher layer

User of Radio Bearer RRC RRC NAS_DT

High prio

NAS_DT Low prio

Logical channel type DCCH DCCH DCCH DCCH

RLC mode UM AM AM AM

Payload sizes, bit 136 128 128 128

Max data rate, bps 3400 3200 3200 3200

RLC

AMD/UMD PDU header, bit 8 16 16 16

MAC header, bit 4 4 4 4

MAC

MAC multiplexing 4 logical channel multiplexing

TrCH type DCH

TB sizes, bit 148 (alt 0, 148) (note)

TF0, bits 0x148 (alt 1x0) (note) TFS

TF1, bits 1x148

TTI, ms 40

Coding type CC 1/3

CRC, bit 16

Max number of bits/TTI before rate matching

516 Layer 1

RM attribute 155-185

NOTE: alternative parameters enable the measurement "transport channel BLER" in the UE.

TFCS

TFCS size 20

TFCS (Conv. 64 kbps RAB, I/B 128 kbps RAB, DCCH)=

(TF0, TF0, TF0), (TF0, TF1, TF0), (TF0, TF2, TF0), (TF0, TF3, TF0), (TF0, TF4, TF0), (TF1, TF0, TF0), (TF1, TF1, TF0), (TF1, TF2, TF0), (TF1, TF3, TF0), (TF1, TF4, TF0), (TF0, TF0, TF1), (TF0, TF1, TF1), (TF0, TF2, TF1), (TF0, TF3, TF1), (TF0, TF4, TF1), (TF1, TF0, TF1), (TF1, TF1, TF1), (TF1, TF2, TF1), (TF1, TF3, TF1), (TF1, TF4, TF1)

Physical channel parameters

DTX position Flexible

Spreading factor 8

Number of TFCI bits/slot 8

Number of TPC bits/slot 8

DPCCH

Number of Pilot bits/slot 16

Number of data bits/slot 608

DPCH Downlink

DPDCH

(6)

148

0

0

1

DL 3.4 kbps SRB Transport Format Set

TF

148

0

0

1

UL 3.4 kbps SRB Transport Format Set

TF

640

640

0

0

1

DL Conv 64kbps RAB Transport Format Set

TF

640

640

0

0

1

UL Conv 64kbps RAB Transport Format Set

TF

TF

336

336

336

336

336

336

336

336

336

336

0

0

1

2

3

4

336

336

336

336

336

336

336

336

336

336

DL I/B 128 kbps RAB Transport Format Set

0

0

1

2

3

4

336

336

336

336

336

336

336

336

336

336

UL I/B 128 kbps RAB Transport Format Set

TF

The Transport Format Sets (TFS) of each Transport Channel

(The 6 boxes represent the individual transport channels and show the elements (transport formats) of the 6 Transport Format Sets (TFS))

Transport Blocks (TB)

Transport Block Set

Transport Block Size = 336 bits

(7)

0 0 148 336 336 0 148 336 336 336 0 148 336 336 336 336 0 148 336 0 148 0 640 640 148 336 336 640 640 148 336 336 336 640 640 336 336 336 336 640 640 336 640 640 148 0 640 640 0 336 336 640 640 0 336 336 336 640 640 0 336 336 336 336 640 640 0 336 640 640 0 0 0 0 336 336 0 0 336 336 336 0 0 336 336 336 336 0 0 336 0 0 TF0, TF0, TF0 TF0, TF1, TF0 TF0, TF2, TF0 TF0, TF3, TF0 TF0, TF4, TF0 TF1, TF0, TF0 TF1, TF1, TF0 TF1, TF2, TF0 TF1, TF3, TF0 TF1, TF4, TF0 TF0, TF0, TF1 TF0, TF1, TF1 TF0, TF2, TF1 TF0, TF3, TF1 TF0, TF4, TF1 TF1, TF0, TF1 TF1, TF1, TF1 TF1, TF2, TF1 TF1, TF3, TF1 TF1, TF4, TF1

The Uplink Transport Format Combination Set (TFCS)

(8)

336 336 336 336 336 336 336 336 336 336 336 336 336 336 336 336 336 336 336 336 336 336 336 336 336 336 336 336 336 336 336 336 336 336 336 336 336 336 336 336 0 0 148 0 148 0 148 0 148 0 148 0 640 640 148 640 640 148 640 640 148 640 640 148 640 640 148 0 640 640 0 640 640 0 640 640 0 640 640 0 640 640 0 0 0 0 0 0 0 0 0 0 336 336 336 336 336 336 336 336 336 336 336 336 336 336 336 336 336 336 336 336 336 336 336 336 336 336 336 336 336 336 336 336 336 336 336 336 336 336 336 336 0 0 TF0, TF0, TF0 TF0, TF1, TF0 TF0, TF2, TF0 TF0, TF3, TF0 TF0, TF4, TF0 TF1, TF0, TF0 TF1, TF1, TF0 TF1, TF2, TF0 TF1, TF3, TF0 TF1, TF4, TF0 TF0, TF0, TF1 TF0, TF1, TF1 TF0, TF2, TF1 TF0, TF3, TF1 TF0, TF4, TF1 TF1, TF0, TF1 TF1, TF1, TF1 TF1, TF2, TF1 TF1, TF3, TF1 TF1, TF4, TF1

The Downlink Transport Format Combination Set (TFCS)

References

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