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TR 25.868
Node B synchronization for 1,28 Mcps TDD

3GPP‑Page  
V5.0.1 (Wzip)  2002/04  53 p.
Rapporteur:
Ms. Hu, Jinling

full Table of Contents for  TR 25.868  Word version:  5.0.1

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1  Scope  Word‑p. 5

The present document describes the solution recommended to enable the synchronisation of Node Bs over the air in 1.28Mcps TDD for Rel-5.

2  References  Word‑p. 5

3  Definitions, symbols and abbreviations  Word‑p. 5

3.1  Definitions  Word‑p. 5

3.2  Symbols  Word‑p. 5

3.3  Abbreviations  Word‑p. 5

4  Background and Introduction  Word‑p. 5

5  Motivation  Word‑p. 5

6  Accuracy Requirements  Word‑p. 6

7  Concept of Node B Synchronisation  Word‑p. 6

7.1  General  Word‑p. 6

7.2  Node B on air synchronisation procedure by the DwPCH  Word‑p. 6

7.2.1  DwPCH centric solution  Word‑p. 6

7.2.2  DwPCH distributed solution  Word‑p. 8

7.2.2.1  Some seen drawbacks by the opponents  Word‑p. 9

7.3  Node B on air synchronisation procedure by extended synchronisation sequences  Word‑p. 9

7.3.1  CEC sequences  Word‑p. 9

7.3.2  Extended SYNC_DL sequence using Gold sequence  Word‑p. 10

7.4  Potential Improvements for Handover  Word‑p. 11

7.5  DwPCH for UE positioning  Word‑p. 11

7.5.1  UE positioning enhancement with IPDL  Word‑p. 11

7.5.2  UE positioning without IPDL  Word‑p. 11

8  Impact on Interfaces  Word‑p. 11

8.1  Uu Interface  Word‑p. 11

8.2  Iub Interface  Word‑p. 11

8.3  Iur Interface  Word‑p. 12

9  Impact on network elements  Word‑p. 12

9.1  UE  Word‑p. 12

9.2  Node B  Word‑p. 12

9.3  RNC  Word‑p. 12

10  Performance Analysis  Word‑p. 13

10.1  Blanking of the DwPCH  Word‑p. 13

10.2  Usage of receive beamforming  Word‑p. 14

11  Backward Compatibility  Word‑p. 15

A  RAN3 Aspects  Word‑p. 16

$  Change history  Word‑p. 53

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