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4‑5x
Content for
TS 25.323
Word version: 18.0.0
1…
3…
A…
3
Definitions and Abbreviations
4
General
5
Functions
6
Services
7
Elements for layer-to-layer communication
8
Elements for peer-to-peer communication
9
Handling of unknown, unforeseen and erroneous protocol data
3
Definitions and Abbreviations
p. 7
3.1
Definitions
p. 7
3.2
Abbreviations
p. 8
4
General
p. 9
4.1
Objective
p. 9
4.2
Overview on sublayer architecture
p. 9
5
Functions
p. 10
5.1
Header Compression
p. 10
5.1.1
Mapping of PID values
p. 10
5.1.2
IP Header Compression (RFC 2507)
p. 11
5.1.2.1
Context identifiers
p. 11
5.1.2.2
Mapping of PID values for RFC 2507
|R4|
p. 11
5.1.2.3
Management of Full Header transmission
|R4|
p. 11
5.1.3
Robust Header Compression
|R4|
p. 11
5.1.3.1
Context identifiers
p. 12
5.1.3.2
Void
5.1.3.3
Mapping of PID values
p. 12
5.1.3.4
Void
5.1.3.5
Protocol Parameters
p. 12
5.1.3.6
Configuration by RRC
|R5|
p. 13
5.2
Void
5.3
Data Transfer
p. 13
5.3.1
Data transfer over acknowledged mode RLC
p. 14
5.3.2
Data transfer over unacknowledged and transparent mode RLC
p. 14
5.4
SRNS Relocation
p. 14
5.4.1
Lossless SRNS Relocation
p. 15
5.4.1.1
Void
5.4.1.2
Void
5.4.1.3
Void
5.4.2
Context relocation
|R5|
p. 15
5.5
Lossless DL RLC PDU size change
|R5|
p. 17
5.6
General procedures
|R5|
p. 17
5.6.1
-
|R11|
p. 17
5.6.1.1
PDCP Sequence Numbering
|R5|
p. 17
5.6.1.2
PDCP Sequence Number synchronization
|R5|
p. 18
5.6.1.3
Sequence Number and Data Forwarding
|R5|
p. 19
5.6.1.4
CS Counter Handling
|R8|
p. 19
5.7
Header Compression and Decompression for MBMS
|R6|
p. 19
5.7.1
Cell change inside the same cell group
p. 19
5.7.2
Cell change between cell groups
p. 20
6
Services
p. 20
6.1
Services provided to upper layers
p. 20
6.2
Services expected from RLC layer
p. 20
7
Elements for layer-to-layer communication
p. 20
7.1
Primitives between PDCP and upper layers
p. 20
8
Elements for peer-to-peer communication
p. 22
8.1
Protocol data units
p. 22
8.2
Formats
p. 22
8.2.1
PDCP-No-Header PDU
p. 22
8.2.2
PDCP Data PDU
p. 22
8.2.3
PDCP SeqNum PDU
p. 23
8.2.4
PDCP AMR Data PDU
|R8|
p. 23
8.3
Parameters
p. 23
8.3.1
PDU Type
p. 23
8.3.2
PID
p. 24
8.3.3
Data
p. 24
8.3.4
Sequence number
p. 24
8.3.5
CS counter
|R8|
p. 24
9
Handling of unknown, unforeseen and erroneous protocol data
p. 24
9.1
Invalid PDU type
p. 24
9.2
Invalid PID value
p. 25
9.3
PDCP Unrecoverable Error Detection
|R8|
p. 25