【資料名稱】：TR 36.806 V9.0.0Relay architectures for E-UTRA(LTE-Advanced)

【資料作者】：3GPP

【資料日期】：2010-03

【資料語言】：英文

【資料格式】：PDF

【資料目錄和簡介】：

Foreword .....................................................................................................................................................4
1 Scope.................................................................................................................................................5
2 References .........................................................................................................................................5
3 Definitions and abbreviations ..............................................................................................................5
3.1 Definitions..................................................................................................................................................5
3.2 Abbreviations..............................................................................................................................................5
4 Architectures .....................................................................................................................................5
4.1 General.......................................................................................................................................................5
4.2 Architecture A ............................................................................................................................................6
4.2.1 Overview...............................................................................................................................................6
4.2.1.1 Relationship among alternatives in architecture A..............................................................................6
4.2.2 User plane aspects .................................................................................................................................7
4.2.3 Control plane aspects ..............................................................................................................................9
4.2.4 Signalling procedures...........................................................................................................................11
4.2.4.1 UE access procedure.......................................................................................................................11
4.2.4.2 UE bearer management procedures..................................................................................................12
4.2.4.3 Handover procedure ........................................................................................................................13
4.2.4.4 RN startup procedure......................................................................................................................14
4.3 Architecture B...........................................................................................................................................16
4.3.1 Overview.............................................................................................................................................16
4.3.2 User plane aspects ...............................................................................................................................16
4.3.3 Control plane aspects ............................................................................................................................17
4.3.4 UE Context at DeNB ............................................................................................................................18
4.3.5 Signalling procedures...........................................................................................................................18
4.3.5.1 UE access procedure.......................................................................................................................18
4.3.5.2 UE bearer management procedures..................................................................................................19
4.3.5.3 Handover procedure ........................................................................................................................19
4.3.5.4 RN startup procedure......................................................................................................................20
5 Radio aspects ...................................................................................................................................21
5.1 Header Compression in PDCP for Relay Architectures and Header Overhead .............................................21
5.1.1 General................................................................................................................................................21
5.1.2 Architecture A.....................................................................................................................................21
5.1.2.1 Compress the entire header chain.....................................................................................................22
5.1.2.2 Compress the outer and inner headers separately, excluding GTP.....................................................23
5.1.2.3 Compress the outer and inner headers separately, including GTP......................................................23
5.1.2.4 Compress just the outer headers, excluding GTP..............................................................................23
5.1.2.5 Strip the outer headers, excluding GTP............................................................................................24
5.1.2.6 3GPP Compression .........................................................................................................................24
5.1.3 Architecture B.....................................................................................................................................24
5.1.4 Summary.............................................................................................................................................25
6 Backhaul aspects..............................................................................................................................26
6.1 X2 Interface..............................................................................................................................................26
7 Agreements......................................................................................................................................26
8 Comparison .....................................................................................................................................27
9 Conclusion.......................................................................................................................................31
Annex A: Additional Signalling Flow Examples..............................................................................32
A.1 Multi-Hop UE Attach procedure.................................................................................................................32
A.2 RN Mobility..............................................................................................................................................33
Annex B: Change history .................................................................................................................34

36806-900.pdf (875.78 KB)

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