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5G architecture options – full set
Joint RAN/SA meeting |June 14th 2016, Busan
Deutsche Telekom AG
RP-161266
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)
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
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“
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
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
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“
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
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
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
QUESTIONS ?
Life is for sharing.
15.06.20165G architectureoptions | RAN/SA meeting, June 2016 RP-161266

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Overview 5G Architecture Options from 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