Release ledger
Canonical Atlas record
TS 25.435
UTRAN Iub interface user plane protocols for Common Transport Channel data streams
Release evolution
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Use indexed version, Work Item and Change Request evidence to see what changed around this specification. This is an evidence trail, not a clause-by-clause normative diff.
Rel-12 snapshot
Work affecting this release
16 indexed Change Requests · 3 connected Work Items.
Showing 12 CR records from the available cross-release sample. Browse release CR records (JSON) →
CR 0314 rev.1 — Rapporteur Review – change figures to table style
CR 0313 — Carrying multiple UEs’ data in one HS-DSCH DATA FRAME TYPE3
CR 0313 rev.1 — Carrying multiple UEs’ data in one HS-DSCH DATA FRAME TYPE3
CR 0312 — Target HS-SCCH override order in enhanced Serving Cell Change based on Event 1C
CR 0314 — Rapporteur Review – change figures to table style
CR 0310 — Reinterpret NTHT in Standalone HS-DPCCH
CR 0311 — Carrying multiple UEs’ data in one HS-DSCH DATA FRAME TYPE3
CR 0306 rev.3 — Introduction of Cell Reselection indications
CR 0307 — Standalone HS-DPCCH repetition of HS-SCCH order
CR 0306 rev.2 — Introduction of Cell Reselection indications
CR 0305 — Carrying multiple UEs’ data in one HS-DSCH DATA FRAME TYPE3
CR 0306 — Introduction of Cell Reselection indications
Version history
Indexed versions
Showing 60 of 84 indexed versions.
Atlas classifications
Meaning and provenance
No Atlas classifications have been attached yet.
Work Items
Standards work connected to TS 25.435
Rel-4 RAN improvements
Low Chip Rate TDD option
Iub/Iur protocol aspects - for Low Chip Rate TDD option
Rel-5 RAN improvements
High Speed Downlink Packet Access
Iub/Iur protocol aspects - for High Speed Downlink Packet Access
(Small) Technical Enhancements and Improvements for Rel-5
Rel-6 RAN improvements
Rel-6 Charging Management
FDD Enhanced Uplink
FDD Enhanced Uplink - UTRAN Iub/Iur Protocol Aspects
Multimedia Broadcast and Multicast Service
Introduction of MBMS in RAN
Beamforming Enhancements
(Small) Technical Enhancements and Improvements for Rel-6
Deleted - CT3 aspects of Mp
Rel-7 RAN improvements
CT1 aspects of Mp
EDCHTDD: UTRAN Iub/Iur Protocol Aspects
1.28 Mcps TDD Enhanced Uplink: UTRAN Iub/Iur Protocol Aspects
Multiple-Input Multiple-Output (MIMO) antennas
Mp (MRFC - MRFP) interface
64QAM for HSDPA (FDD)
Continuous connectivity for packet data users
Enhanced CELL_FACH State in FDD
Extended WCDMA Cell Range
Improved L2 support for high data rates
(Small) Technical Enhancements and Improvements for Rel-7
7.68 Mcps TDD option
VHCRTDD: UTRAN Iub/Iur Protocol Aspects
Rel-8 RAN improvements
Combination of 64QAM and MIMO for HSDPA (FDD)
Enhanced UE Discontinuous Reception (DRX) for FDD
Enhanced CELL_FACH state in 1.28 Mcps TDD
MIMO for 1.28 Mcps TDD. Linked to Rel-8 Study on Scope of future HSPA Evolution for 1.28 Mcps TDD (UID_370041) TR 25.824
Enhanced Uplink for CELL_FACH State in FDD
Improved L2 for uplink
(Small) Technical Enhancements and Improvements for Rel-8
Cell Portion for 1.28 Mcps TDD
Rel-9 RAN improvements
(Small) Technical Enhancements and Improvements for Rel-9
Core part: MU-MIMO for 1.28Mcps TDD
(Small) Technical Enhancements and Improvements for Rel-10
Core part: Further Enhancements to CELL_FACH
Core part: HSDPA Multiflow Data Transmission
(Small) Technical Enhancements and Improvements for Rel-11
Core part: Further Enhanced Uplink (EUL) enhancements
(Small) Technical Enhancements and Improvements for Rel-12
Core part: UMTS Mobility enhancements for heterogeneous networks
Core part: L2/L3 Downlink enhancements for UMTS
Core part: DTX/DRX enhancements in CELL_FACH
Harmonized Standard
Lawful Interception for GSM Features transposed to UMTS
(Small) Technical Enhancements and Improvements for R99
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