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Content for
TR 36.878
Word version: 13.0.0
1…
2…
2
References
3
Definitions, symbols and abbreviations
4
Introduction
5
RRM and demodulation requirements enhancements under existing high speed scenario
6
RRM and demodulation requirements enhancements under identified high speed scenarios
7
Conclusions
A
Mobility in Unidirectional SFN Deployment
$
Change History
2
References
3
Definitions, symbols and abbreviations
3.1
Definitions
3.2
Symbols
Word‑p. 7
3.3
Abbreviations
4
Introduction
Word‑p. 8
4.1
Study item objective
5
RRM and demodulation requirements enhancements under existing high speed scenario
Word‑p. 9
5.1
General
5.2
RRM requirements enhancements under existing high speed scenario
Word‑p. 10
5.2.1
Simulation assumptions
5.2.2
Performance characterization
Word‑p. 13
5.2.2.1
RLM
5.2.2.1.1
Simulation Results
5.2.2.1.2
Summary
Word‑p. 14
5.2.2.2
RSRP/RSRQ measurement accuracy
5.2.2.2.1
Simulation results
5.2.2.2.2
Summary
Word‑p. 18
5.2.2.3
Cell identification
5.2.2.3.1
Simulation results
5.2.2.3.2
Summary
Word‑p. 19
5.3
UE Demodulation requirements enhancements under existing high speed scenario
5.3.1
Simulation assumptions
Word‑p. 20
5.3.2
Performance characterization
Word‑p. 21
5.3.2.1
Simulation results of PDSCH under the existing high speed scenario
5.3.2.2
Summary of evaluation
Word‑p. 25
5.4
BS Demodulation requirements enhancements under existing high speed scenario
Word‑p. 26
5.4.1
Simulation assumptions
5.4.2
Performance characterization
5.4.2.1
Limiting factors for high speed performance
5.4.2.1.1
ICI
5.4.2.1.2
Doppler tracking and channel estimation performance
Word‑p. 28
5.4.2.2
Simulation results of PUSCH under the existing high speed scenario
5.4.2.3
Summary of evaluation
Word‑p. 32
6
RRM and demodulation requirements enhancements under identified high speed scenarios
6.1
General
6.2
Identified Scenarios
6.2.1
Proposed scenarios
6.2.2
Scenario summary
Word‑p. 34
6.2.3
Possible new channel models
Word‑p. 35
6.2.3.1
SFN scenario (RRH sharing the same cell id)
6.2.3.2
Leaky cable in Tunnel (from leaky cable to repeater)
Word‑p. 37
6.3
RRM requirements enhancements under identified high speed scenarios
Word‑p. 38
6.3.1
Simulation assumptions
6.3.1.1
SFN scenarios
6.3.1.1.1
RLM
6.3.1.1.2
RSRP/RSRQ accuracy
Word‑p. 39
6.3.1.2
Leaky cable (1st hop of scenario 2c)
Word‑p. 40
6.3.1.2.1
RLM
6.3.1.2.2
RSRP/RSRQ accuracy
Word‑p. 41
6.3.1.2.3
Cell identification
6.3.2
Performance characterization
Word‑p. 43
6.3.2.1
SFN scenarios
6.3.2.1.1
RLM
6.3.2.1.2
RSRP/RSRQ accuracy
Word‑p. 44
6.3.2.2
Leaky cable (1st hop of scenario 2c)
Word‑p. 47
6.3.2.2.1
RLM
6.3.2.2.2
RSRP/RSRQ accuracy
Word‑p. 49
6.3.2.2.3
Cell identification
Word‑p. 51
6.3.3
Possible essential enhancement options
Word‑p. 52
6.3.4
Other issues and possible options
6.4
Downlink performance enhancements under identified high speed scenarios
Word‑p. 53
6.4.1
Simulation assumptions
6.4.2
Performance characterization
Word‑p. 54
6.4.2.1
SFN scenario (RRH sharing the same cell id)
6.4.2.2
Leaky cable in tunnel
Word‑p. 62
6.4.2.3
Summary of evaluation
Word‑p. 63
6.4.3
Possible essential enhancement options
6.4.3.1
Advanced receiver in high speed scenario
6.4.3.2
BS frequency pre-compensation
Word‑p. 64
6.4.3.3
Unidirectional SFN scenario
Word‑p. 65
6.4.3.3.1
Unidirectional SFN scenario (RRHs sharing the same cell id, beams aligned in same direction)
Word‑p. 66
6.4.3.3.2
Simulation assumptions for Unidirectional SFN
Word‑p. 73
6.4.3.3.3
Performance characterization of the Unidirectional SFN scenario
Word‑p. 74
6.4.3.4
HST RRH with distributed orthogonal antenna ports (DOAP)
Word‑p. 77
6.5
Uplink performance enhancements under identified high speed scenarios
Word‑p. 78
6.5.1
Simulation assumptions
6.5.2
Performance characterization
Word‑p. 79
6.5.2.1
SFN scenario (RRH sharing the same cell id)
6.5.2.1.1
PUSCH/PUCCH analysis
6.5.2.1.2
PRACH analysis
6.5.2.2
Leaky cable in tunnel
Word‑p. 82
6.5.2.3
Summary of evaluation and analysis
Word‑p. 83
6.5.3
Possible essential enhancement options
6.5.3.1
A new restricted set of cyclic shifts for extra high speed cells
6.5.3.2
Unidirectional RRH arrangement
Word‑p. 84
6.5.3.2.1
Uplink characteristics in Unidirectional RRH arrangement
7
Conclusions
Word‑p. 88
A
Mobility in Unidirectional SFN Deployment
Word‑p. 89
A.1
Mobility in Unidirectional SFN Deployment
$
Change History
Word‑p. 91