TR 25.813
Evolved Universal Terrestrial Radio Access (E-UTRA) and
Evolved Universal Terrestrial Radio Access Network (E-UTRAN);
Radio interface protocol aspects
V7.1.0 (Wzip)
2006/10 41 p.
- Rapporteur:
- Mr. SEBIRE, Benoist
full Table of Contents for TR 25.813 Word version: 7.1.0
0 Introduction p. 7
With enhancements such as HSDPA and Enhanced Uplink, the 3GPP radio-access technology will remain highly competitive for several years to come. However, to ensure competitiveness in an even longer time frame, the long-term evolution of the 3GPP radio-access technology is under study. Important parts of such a long-term evolution include reduced latency, higher user data rates, optimised support for packet services, improved system capacity and coverage, and reduced cost for the operator, while also reducing system complexity. In order to achieve this, evolutions of the radio interface as well as the radio network architecture are considered in the study item "Evolved UTRA and UTRAN" [1]. This document covers the Radio Interface Protocol Aspects of the study item.
1 Scope p. 8
The purpose of this TR is to help TSG RAN WG2 to define and describe the radio interface protocol evolution under consideration for Evolved UTRA and UTRAN [1]. This activity involves the Radio Access Network work area of the 3GPP studies for evolution and has impacts both on the Mobile Equipment and Access Network of the 3GPP systems. This document is intended to gather the agreements rather than comparing different solutions.
2 References p. 8
3 Definitions, symbols and abbreviations p. 8
4 Objectives and requirements p. 9
4.1 Complexity p. 9
4.2 Performance p. 10
5 Protocol architecture p. 10
5.1 Overall protocol architecture p. 10
5.1.1 User plane p. 12
5.1.2 Control plane p. 12
5.2 Layer 1 p. 13
5.2.1 Services and functions p. 14
5.2.2 Transport channels p. 14
5.3 Layer 2 p. 15
5.3.1 MAC Sublayer p. 17
5.3.1.1 Services and Functions p. 17
5.3.1.2 Logical Channels p. 18
5.3.1.2.1 Control Channels p. 18
5.3.1.2.2 Traffic Channels p. 18
5.3.1.3 Mapping between logical channels and transport channels p. 18
5.3.2 RLC Sublayer p. 19
5.3.3 PDCP Sublayer p. 20
5.3.4 Data flows through Layer 2 p. 21
5.4 RRC p. 21
5.5 NAS control protocol p. 22
5.5.1 Services and Functions p. 22
5.5.2 NAS protocol states & state transitions p. 23
5.5.3 Transport of NAS messages p. 24
5.6 Identities used over the E-UTRAN radio interface p. 24
6 ARQ and HARQ p. 25
7 Scheduling p. 26
8 QoS Control p. 27
9 Mobility p. 27
9.1 Intra E-UTRAN p. 27
9.1.1 Variable bandwidth scenarios p. 28
9.1.2 Cell selection p. 28
9.1.3 Cell reselection p. 29
9.1.4 Paging p. 29
9.1.5 Handover p. 29
9.1.6 Measurements p. 31
9.1.6.1 Neighbour cell measurements within the serving frequency layer p. 31
9.1.6.2 Neighbour cell measurements of other frequency layers p. 31
9.1.7 Network aspects p. 31
9.2 Inter RAT p. 32
9.2.1 Cell reselection p. 33
9.2.2 Handover p. 33
9.2.3 Measurements p. 33
9.2.3.1 Inter-RAT handovers from E-UTRAN p. 33
9.2.3.2 Inter-RAT handovers to E-UTRAN p. 33
9.2.3.3 Inter-RAT cell reselection from E-UTRAN p. 34
9.2.3.4 Limiting measurement load at UE p. 34
9.2.4 Network Aspects p. 34
9.3 Timing Advance p. 34
10 Security p. 34
11 MBMS p. 35
12 Migration and compatibility p. 36
12.1 Migration scenario p. 37
12.2 Interaction with previous releases p. 37
12.3 Interoperability p. 37
13 UE capabilities p. 37
14 Impact on specifications p. 37
14.1 Specification methodology p. 37
14.2 Affected specifications p. 37
14.3 New specifications p. 37
A RACH and Contention Resolution p. 40
B Architecture Progress p. 41
$ Change history p. 42
