Network Slicing overview_v6
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The document discusses network slicing inputs from several standards organizations: - NGMN defines network slicing and describes the basic concept. ITU refers to NGMN's definition. - ONF uses NGMN's definition of network slicing. 3GPP references NGMN in TR22.891 and other specifications. - 3GPP TR38.801 describes RAN aspects of network slicing. TR22.891 includes 13 requirements for network slicing. - ETSI NFV discusses how network slice lifecycle management interacts with NFV MANO. 5G Americas looks at the end-to-end network slicing architecture and governance.
![ITU-IMT2020 & Network Slicing
The basic concept of the Network Softwarization is “Slicing” as defined in [ITU-T Y.3011], [ITU-T Y.3012].
Slicing allows logically isolated network partitions (LINP) with a slice being considered as a unit of
programmable resources such as network, computation and storage. Considering the wide variety of
application domains to be supported by 5G or IMT-2020 network, it is necessary to extend the concept of
slicing to cover a wider range of use cases than those targeted by the current SDN/NFV technologies, and
the need to address a number of issues on how to utilize slices created on top of programmable software
defined infrastructure.
Confidential 3
Source: ITU IMT2020 TD208 report
http://www.itu.int/en/ITU-T/focusgroups/imt-2020/Documents/T13-SG13-151130-TD-PLEN-0208%21%21MSW-E.docx](https://image.slidesharecdn.com/d9c3f701-3961-46f3-9056-c78ff112e10e-161214163223/85/Network-Slicing-overview_v6-3-320.jpg)
![3GPP TR22.864 1.0.0 (2)
Confidential 43
[2] being TR22.891](https://image.slidesharecdn.com/d9c3f701-3961-46f3-9056-c78ff112e10e-161214163223/85/Network-Slicing-overview_v6-43-320.jpg)
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Network Slicing overview_v6
- 1. Network Slicing Inputs Marie-Paule Odini – HPE, ETSI NFV Vice Chair Nov 2016
- 2. NGMN Network Slicing Confidential 2https://www.ngmn.org/uploads/media/160113_Network_Slicing_v1_0.pdf Source: NGMN – Description of Network Slicing Concept
- 3. ITU-IMT2020 & Network Slicing The basic concept of the Network Softwarization is “Slicing” as defined in [ITU-T Y.3011], [ITU-T Y.3012]. Slicing allows logically isolated network partitions (LINP) with a slice being considered as a unit of programmable resources such as network, computation and storage. Considering the wide variety of application domains to be supported by 5G or IMT-2020 network, it is necessary to extend the concept of slicing to cover a wider range of use cases than those targeted by the current SDN/NFV technologies, and the need to address a number of issues on how to utilize slices created on top of programmable software defined infrastructure. Confidential 3 Source: ITU IMT2020 TD208 report http://www.itu.int/en/ITU-T/focusgroups/imt-2020/Documents/T13-SG13-151130-TD-PLEN-0208%21%21MSW-E.docx
- 4. ONF Network Slicing Confidential 4 Source: https://www.opennetworking.org/images/stories/downloads/sdn-resources/technical-reports/Applying_SDN_Architecture_to_5G_Slicing_TR-526.pdf ONF is using NGMN definition
- 5. 3GPP & Network Slicing Summary Confidential 5 TR22.891 Rel 14 refers to NGMN Referenced in TR22.864 Rel 14 Referenced in TS22.261 Rel 15 => + 13 requirements 3GPP TR38.801 Rel 14 - RAN Referenced in TR22.799 Rel 14
- 6. 3GPP TR22.891 v14.2.0 Confidential 6 Refers To NGMN
- 7. 3GPP TS22.261 Rel 15 Confidential 7 13 requirements
- 8. 3GPP TR38.801 v0.2.0 (2016-06) Confidential 8
- 9. 3GPP TR38.801 v0.2.0 (2016-06) Confidential 9
- 10. 3GPP TR38.801 v0.2.0 (2016-06) Confidential 10
- 11. 5G Americas Network Slicing Management & ETSI NFV Also mentioning 3GPP SA5 recently started new study item: “Study on management and orchestration of network slicing for next generation network” (FS-MONETS). The Network Slice Life Cycle Management would typically interact with ETSI NFV MANO for these virtualized network services and functions, as shown in Figure 11, with an open Nsl-Ma interface, with Nsl standing for “network slice.” However, the PNF would be managed outside of MANO, as well as subnetwork parts composed of connection of PNF. This would require the Network Slice Life Cycle Management to also interface with a non-virtualized life cycle management & operation environment, as shown on Figure 11, with an open Nsl-PN interface, with PN standing for “Physical Network.”
- 13. 13Source: https://www.ngmn.org/uploads/media/NGMN_5G_White_Paper_V1_0.pdf
- 14. Confidential 14
- 16. Confidential 16
- 23. Confidential 23
- 24. Confidential 24
- 25. Confidential 25
- 26. Confidential 26
- 29. Confidential 29
- 30. Confidential 30
- 35. Confidential 35
- 36. Confidential 36
- 37. 3GPP – TR32.842 Rel 13, TR22.891, TR22.864, TR38.801 Confidential 37
- 39. 3GPP TR22.891 (2) Confidential 39 Nothing really new => refers to NGMN
- 42. 3GPP TR22.864 1.0.0 (1) Confidential 42
- 43. 3GPP TR22.864 1.0.0 (2) Confidential 43 [2] being TR22.891
- 44. 3GPP TR22.864 1.0.0 (3) Confidential 44
- 45. 3GPP TR 32.842 v13.1.0 (Rel 13) Confidential 45 Nothing on slicing, slices, network slicing or network slices Only concept that could be leveraged for slicing is 6.3 , but this seems to focus a lot on EM/NM/applications
- 46. 3GPP TR38.801 v0.2.0 (2016-06) Confidential 46
- 47. 3GPP TR38.801 v0.2.0 (2016-06) Confidential 47
- 48. 3GPP TR38.801 v0.2.0 (2016-06) Confidential 48
- 49. TSG-SA WG5 TS 28.500, Management concept, architecture and requirements for mobile networks that include virtualized network functions. Release 14. Confidential 49 No occurrence of term : Network Slicing
- 50. 3GPP Release 15 Confidential 50
- 51. 3GPP – Release 15 - TSG-SA WG1. “SMARTER” TS22.261 is 75% complete (was 55%), and already contains 13 agreed normative 5G requirements for Network Slicing. Confidential 51 => Refer to TR22.864 for Network Slicing
- 52. TSG-SA WG2. TR23.799. Study on Architecture for Next Generation System. Confidential 52 Refers to TR22.864
- 53. ETSI NGP – Network Slicing use case Confidential 53
- 54. 5G Americas - NETWORK SLICING SYSTEM ARCHITECTURE (E2E NETWORK SLICING) more on http://www.5gamericas.org/files/3214/7975/0104/5G_Americas_Network_Slicing_11.21_Final.pdf
- 55. 5G Americas Network Slicing Governance