At 3GPP RAN#72 5G Architecture discussion took place. This document lists all options that are under discussion. Source: RP-161266 at RAN#72 Deutsche Telekom

1. 5G architecture options – full set
Joint RAN/SA meeting |June 14th 2016, Busan
Deutsche Telekom AG
RP-161266

2. Outline of architecture options in the light of 5G
and “acceleration” discussion
2
 Two radio technologies have to be considered in the 5G discussions
 LTE (in its Rel-15 version) aka “eLTE” in sa2
 Next generation Radio (“nr”)
 plus radio level aggregation of both radio technologies in 2 variants
 Two Core Network concepts have to be considered in the 5G discussions
 EPC (with potential evolutions)
 Next Generation Core („nGcn“)
 This results in 12 options (next slides)
15.06.20165G architectureoptions | RAN/SA meeting, June 2016 RP-161266
S1_C
S1_U
NG2 (Controlplane)
NG3 (Userplane)

3. 5G scenarios in 3GPP NR & NextGenCore (1/6)
15.06.2016 3
LTE
EPC
1) Standalone LTE, EPC connected - legacy 2) Standalone NR, NGCN connected
5G architectureoptions | RAN/SA meeting, June 2016 RP-161266
NR
NextGen
Core

4. 5G scenarios in 3GPP NR & NextGenCore (2/6)
4
LTE NR
EPC
NextGen
Core
3) Non-Standalone/”LTE assisted”, EPC connected
15.06.20165G architectureoptions | RAN/SA meeting, June 2016 RP-161266
LTE NR
EPC
NextGen
Core
3a) Non-Standalone/”LTE assisted”, EPC
connected
„1a“

5. 5G scenarios in 3GPP NR & NextGenCore (3/6)
5
4a) Non-Standalone/”NR assisted”,NGCN
connected
LTE NR
EPC
NextGen
Core
15.06.20165G architectureoptions | RAN/SA meeting, June 2016 RP-161266
„1a-like“
4) Non-Standalone/”NR assisted”, NGCN
connected
LTE NR
EPC
NextGen
Core

6. 5G scenarios in 3GPP NR & NextGenCore (4/6)
6
LTE
5) Standalone LTE Rel-15, NGCN connected 6) Standalone 5GNR, EPC connected
NextGen
Core
EPC
15.06.20165G architectureoptions | RAN/SA meeting, June 2016 RP-161266
NR

7. 5G scenarios in 3GPP NR & NextGenCore (5/6)
7
LTE NR
EPC
NextGen
Core
7) Non-Standalone/”LTE assisted”, NGCN
connected
15.06.20165G architectureoptions | RAN/SA meeting, June 2016 RP-161266
LTE NR
EPC
NextGen
Core
7a) Non-Standalone/”LTE assisted”, NGCN
connected
„1a-like“

8. 5G scenarios in 3GPP NR & NextGenCore (6/6)
8
8a) Non-Standalone/”NR assisted”, EPC connected
LTE NR
EPC
NextGen
Core
15.06.20165G architectureoptions | RAN/SA meeting, June 2016 RP-161266
„1a-like“
8) Non-Standalone/”NR assisted”, EPC connected
LTE NR
EPC
NextGen
Core

9. Questions and conclusions
9
 scenario 1) is legacy  11 options remain
 Does 3GPP need to support all remaining 11 architecture options ?
 Is there a phasing possible / desirable ?
 How to ensure forward compatibility in order to avoid global
fragmentation, especially considering roaming ?
15.06.20165G architectureoptions | RAN/SA meeting, June 2016 RP-161266

10. Status of RAN2 / RAN3 discussions per option
(kindly provided by Hideaki-san)
1015.06.20165G architectureoptions | RAN/SA meeting, June 2016 RP-161266
--Scenario 1
RAN2 RAN3
YESYESScenario 2
YESYESScenario 3 / 3a
YESYESScenario 4 / 4a
YESNOScenario 5
NO ?NOScenario 6
YESYESScenario 7 / 7a
NONOScenario 8 / 8a

11. 11
QUESTIONS ?
Life is for sharing.
15.06.20165G architectureoptions | RAN/SA meeting, June 2016 RP-161266