Release ledger
Canonical Atlas record
TS 25.213
Spreading and modulation (FDD)
Release evolution
Compare evidence between releases
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-10 snapshot
Work affecting this release
1 indexed Change Request · 2 connected Work Items.
Showing 1 CR records from the available cross-release sample. Browse release CR records (JSON) →
CR 0108 rev.2 — Introduction of 4C-HSDPA
Version history
Indexed versions
Showing 60 of 64 indexed versions.
Atlas classifications
Meaning and provenance
No Atlas classifications have been attached yet.
Work Items
Standards work connected to TS 25.213
Rel-4 RAN improvements
(Small) Technical Enhancements and Improvements for Rel-4
Rel-5 RAN improvements
High Speed Downlink Packet Access
Physical Layer for High Speed Downlink Packet Access
(Small) Technical Enhancements and Improvements for Rel-5
Rel-6 RAN improvements
RAB support enhancement
Rel-6 Charging Management
FDD Enhanced Uplink
FDD Enhanced Uplink - Physical Layer
Multimedia Broadcast and Multicast Service
Introduction of MBMS in RAN
Optimization of downlink channelisation code utilisation
(Small) Technical Enhancements and Improvements for Rel-6
Rel-7 RAN improvements
MBMS FDD Physical layer Enhancements
Multiple-Input Multiple-Output (MIMO) antennas
MIMO - Physical layer
Mp (MRFC - MRFP) interface
Introduction of 16QAM in HSUPA (FDD)
64QAM for HSDPA (FDD)
Rel-8 RAN improvements
Combination of 64QAM and MIMO for HSDPA (FDD)
Dual-Cell HSDPA operation on adjacent carriers
Rel-9 RAN improvements
Dual-Cell HSUPA
Combination of DC-HSDPA with MIMO
Transmit Antenna Array (TxAA) extension for non-MIMO UEs
Four carrier HSDPA
Core part: Four carrier HSDPA
Core part: Four Branch MIMO transmission for HSDPA
Core part: Eight carrier HSDPA
Core part: Further Enhancements to CELL_FACH
Core part: HSDPA Multiflow Data Transmission
Uplink Transmit Diversity for HSPA
Core part: Uplink Transmit Diversity for HSPA - Closed Loop
Core part: MIMO with 64QAM for HSUPA
Core part: Dedicated Channel (DCH) enhancements for UMTS
Core part: Heterogeneous Networks enhancements
Enhanced Broadcast of System Information
Core part: Enhanced Broadcast of System Information
Core part: Dual Carrier HSUPA Enhancements for UTRAN CS
Core part: HSPA Dual-Band UL carrier aggregation
Harmonized Standard
Lawful Interception for GSM Features transposed to UMTS
(Small) Technical Enhancements and Improvements for R99
UMTS Terrestrial Radio Access Network
Knowledge graph
Related standards
No graph edges indexed yet. The graph API is available at this JSON endpoint.