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4‑5x
Content for
TS 24.022
Word version: 18.0.0
1…
4…
4
Frame structure
4.1
Basic frame structure
4.2
RLP header
4.3
Order of transmission
4.4
Frame check sequence
5
Elements and procedure
5.1
Modes
5.2
Header and parameters
5.3
Error Recovery
5.4
Transitions between 240 bit and 576 bit frame lengths
5.5
List of system parameters
5.6
Support for discontinuous transmission (DTX)
6
Service definitions
6.1
Introduction
6.2
Conventions
6.3
Queue model
6.4
List of Primitives
6.5
Possible RLP time sequence diagrams
A
RLP SDL Diagrams
A.1
List of RLP entity states
A.2
List of RLP entity events
$
Change history
4
Frame structure
p. 10
4.1
Basic frame structure
p. 10
4.2
RLP header
p. 10
4.3
Order of transmission
p. 10
4.4
Frame check sequence
p. 10
5
Elements and procedure
p. 11
5.1
Modes
p. 11
5.1.1
Asynchronous Balanced Mode (ABM)
p. 11
5.1.2
Asynchronous Disconnected Mode (ADM)
p. 11
5.2
Header and parameters
p. 12
5.2.1
Generally used bits
p. 12
5.2.1.1
Command/response bit, C/R
p. 12
5.2.1.2
Poll/Final bit, P/F
p. 13
5.2.2
Unnumbered frames, U
p. 13
5.2.2.1
Set asynchronous balanced mode SABM (11100)
p. 13
5.2.2.2
Unnumbered Acknowledge. UA (00110)
p. 13
5.2.2.3
Disconnect, DISC (00010)
p. 13
5.2.2.4
Disconnected Mode, DM (11000)
p. 13
5.2.2.5
Unnumbered Information, UI (00000)
p. 13
5.2.2.6
Exchange Identification, XID (11101)
p. 14
5.2.2.7
Test, TEST (00111)
p. 15
5.2.2.8
Null information, NULL (11110)
p. 15
5.2.2.9
REMAP (10001)
p. 15
5.2.3
Supervisory frames, S, and numbered information transfer and supervisory frames combined, I+S
p. 16
5.2.3.1
Numbering
p. 16
5.2.3.2
Send Sequence number, N(S)
p. 16
5.2.3.3
Receive sequence number, N(R)
p. 16
5.2.3.4
L2R Status bit
p. 16
5.2.3.5
Receive ready, RR (00)
p. 16
5.2.3.6
Reject, REJ (01)
p. 16
5.2.3.7
Receive not ready, RNR (10)
p. 17
5.2.3.8
Selective reject, SREJ (11)
p. 17
5.2.3.9
Upgrading Proposal bit, UP bit
p. 17
5.3
Error Recovery
p. 17
5.3.1
Improper frames
p. 17
5.3.2
N(S) sequence error
p. 17
5.3.3
N(R) error
p. 18
5.3.4
Time-out and checkpointing
p. 18
5.3.4.1
Treatment of errors during link establishment, link reset and link disconnect
p. 18
5.3.4.2
Treatment of errors during numbered information transfer
p. 18
5.3.5
Contentious situations
p. 18
5.4
Transitions between 240 bit and 576 bit frame lengths
p. 19
5.5
List of system parameters
p. 19
5.5.1
RLP Version N°
p. 20
5.5.2
Maximum number of outstanding I frames k (Window size)
p. 20
5.5.3
Timer T1
p. 21
5.5.4
Maximum number of retransmissions N2
p. 21
5.5.5
Data Compression Parameters
p. 21
5.5.6
Re-sequencing period (Timer T4)
p. 21
5.5.7
Optional features
p. 21
5.6
Support for discontinuous transmission (DTX)
p. 22
5.6.1
In case of A/Gb mode
p. 22
5.6.2
In case of Iu mode
p. 22
6
Service definitions
p. 22
6.1
Introduction
p. 22
6.2
Conventions
p. 23
6.3
Queue model
p. 23
6.4
List of Primitives
p. 24
6.5
Possible RLP time sequence diagrams
p. 26
A
RLP SDL Diagrams
p. 29
A.1
List of RLP entity states
p. 29
A.1.1
(main) states
p. 29
A.1.2
state variables
p. 30
A.2
List of RLP entity events
p. 32
$
Change history
p. 64