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Content for
TR 38.801
Word version: 14.0.0
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11…
11
RAN logical architecture for NR
12
SON
13
Wireless relay
14
Migration towards RAN for NR
15
Interworking with non-3GPP systems
A
Transport network and RAN internal functional split
B
NG Interface Protocol Stacks for User Plane
$
Change History
11
RAN logical architecture for NR
11.1
Functional split between central and distributed unit
11.1.1
General description of split options
11.1.2
Detailed Description of Candidate Split Options and Justification
Word‑p. 60
11.1.2.1
Option 1 (RRC/PDCP, 1A-like split)
11.1.2.2
Option 2 (PDCP/RLC split)
11.1.2.3
Option 3 (High RLC/Low RLC Split)
Word‑p. 61
11.1.2.4
Option 4 (RLC-MAC split)
Word‑p. 62
11.1.2.5
Option 5 (intra MAC split)
Word‑p. 63
11.1.2.6
Option 6 (MAC-PHY split)
11.1.2.7
Option 7 (intra PHY split)
Word‑p. 64
11.1.2.8
Option 8 (PHY-RF split)
Word‑p. 65
11.1.2.9
Summary table
11.1.3
Architectural and specification aspects
Word‑p. 66
11.1.3.1
Number of split options to be specified and supported by open interface
11.1.3.2
Implications of LTE/NR tight interworking
Word‑p. 67
11.1.3.3
Granularity of the Functional Split
11.1.3.4
Reconfiguration dynamicity of the functional split
11.1.3.5
Standardization of Centralized RRM Functions
Word‑p. 68
11.1.3.6
Standardization Issues with Centralized scheduling Options
11.1.3.7
Transmission of RRC message over the CU-DU link
11.1.3.8
CU-DU specification aspects
Word‑p. 69
11.1.4
Transport network aspects
11.1.4.1
General
11.1.4.2
Transport network requirements for an example RAN architecture for NR
11.1.5
Conclusions on functional split between central and distributed unit
Word‑p. 70
11.2
UP-CP Separation
11.2.1
General
11.2.2
UP and CP Functions Description and Grouping
Word‑p. 71
11.2.3
RAN architecture and interfaces for UP-CP Separation
Word‑p. 72
11.2.4
Conclusions
Word‑p. 74
11.3
Realization of RAN Network Functions
Word‑p. 75
12
SON
12.1
Scope of SON for NR
12.2
Self configuration procedures
12.2.1
Automatic neighbour relations
13
Wireless relay
13.1
Scenarios
14
Migration towards RAN for NR
Word‑p. 76
14.1
Potential migration path 1
14.1.1
Step 1 deployment
14.1.2
Step 2 deployment and on wards
14.2
Potential migration path 2
14.3
Potential migration path 3
Word‑p. 77
14.3.1
General
14.3.2
Potential migration path 3-1
14.3.3
Potential migration path 3-2
14.3.4
Potential migration path 3-3
14.3.5
Potential migration path 3-4
Word‑p. 78
14.3.6
Potential migration path 3-5
14.4
Potential migration path 4
14.4.1
Deployment considerations
14.4.2
Two-step migration path
14.5
Potential migration path 5
Word‑p. 79
14.5.1
Potential migration path 5-1
14.5.2
Potential migration path 5-2
14.6
Implications of migration paths on RAN3
15
Interworking with non-3GPP systems
Word‑p. 80
A
Transport network and RAN internal functional split
Word‑p. 81
B
NG Interface Protocol Stacks for User Plane
Word‑p. 84
B.1
Description of candidate solutions
$
Change History
Word‑p. 90