5G Softwarization and Slicing st /2015 ITU FG-IMT-2020 , Turin, - - PowerPoint PPT Presentation

5G Softwarization and Slicing

ITU FG-IMT-2020 , Turin, Italy, Sept 21

st/2015

Peter Ashwood-Smith (peter.ashwoodsmith@huawei.com)

HUAWEI TECHNOLOGIES CO., LTD.

Diversified Challenges and Gaps to Reach 5G

Network Architecture

Slicing

Ability Required

Connections

1,000K

Connections Per km2

Mobility

500km/h

High-speed Railway

Throughput

10Gbps

Per Connection

Latency

1 ms

E2E Latency

5G

100Mbps 10K 350Km/h 30~50ms Inflexible

LTE GAP

30~50x 100x 100x 1.5x NFV/SDN

Challenges because many of these requirements are conflicting

HUAWEI TECHNOLOGIES CO., LTD.

5G will support software defined Radio Access Technologies (RATs)

Error Correction Number of Antennas Frequencies /bands Power Direction SCMA Attributes.. F-OFDM Attributes.. Long Range, High Power Lower Bandwidth No signaling, No reservation

Attr - X Attr - Z

Short Range, High Bandwidth, Signaling/ Reservations

HUAWEI TECHNOLOGIES CO., LTD.

5G will support software defined X-haul (Front / Back / Mid etc.)

TSDN CONTROLLED Packet/Optical PATH, B/W, QOS, Wavelengths, Time Slots, Labels, Protection, etc. Mm-wave/uWave

CRAN CRAN CRAN CRAN

HUAWEI TECHNOLOGIES CO., LTD.

5G will likely use SDN controlled fabrics within the C-RAN/DC

Swtich Swich Switch

TSDN CONTROLLED XHAUL SDN CONTROLLED FABRIC – CONNECTIVITY QOS, PATHS, REDUNDENCY CHAINING, ENCAPSULATIONS

HUAWEI TECHNOLOGIES CO., LTD.

5G will likely use Orchestrated NFV for processing within C-RAN/DC etc.

Swtich Swich Switch

TSDN CONTROLLED XHAUL

ORCHESTRATION SOFTWARE TO ALLOCATE VMs, CPUs, Memory, FPGAs Containers/Processes , Grouping, Affinity, Scheduling, Recovery..

VM CONTAINE R VM VM CONTAINE R CORE/META L CONTAINE R CORE/META L FPGA/Custo m

HUAWEI TECHNOLOGIES CO., LTD.

All the packet processing functions vEPC likely are software controllable.

Swtich Swich Switch

TSDN CONTROLLED XHAUL

Likely there will be numerous API’s into the various network functions that make up the packet layer

• processing. These are

all essentially control knobs for 5G

F5 F6 F1 F2 F4 F3

Enable Mobile Edge Computing.

HUAWEI TECHNOLOGIES CO., LTD.

Slicing – Software control of all attributes including UE

DWDM DWDM

Digital Radio TSDN Hybrid Slice Front Haul IDC Backhaul o DWDM CRANs – runs RAT, CORE and, MEC Any server/core, any function! Red Slice – Ultra Reliable, Low B/W, long range, 400km/hr Yellow Slice – Highest B/W, short range INTER C-RAN/DC (to CORE/vEPC) Blue Slice – Lowest Delay, Low signaling RAT / CN RAT/ CN RAT RAT/ CN RAT/MEC CN / MEC CN/MEC Idle/off Idle resources can be moved from Slice to Slice. Any resource can be part of any slice. Dynamic adjustment. Resources include servers, intra/inter C-RAN B/W, C-RAN to Antenna B/W and UE device antennas/radio components. Any antenna, any server (within delay). Slice UE Resources OS/Antennas etc. Analog or Digital or Packet Radio CONTROLLERS

HUAWEI TECHNOLOGIES CO., LTD.

Softwarization/Slicing present many challenges/gaps

• 1. Appropriate APIs in UE, Xhaul, TSDN, SDN, NFV, VMs, Hypervisors,

Containers, Switches, Routers, OTN/DWDM devices, clock synchronization …

• 2. Computation of resource to slice assignments, trade-offs.
• 3. Control of slicing within the UE, OS etc.
• 4. Control of mapping resources to slices.
• 5. Moving resources from slice to slice, computing impacts.
• 6. Managing the end to end resources that are part of a given slice.
• 7. Deciding when to turn on/off a slice.
• 8. Architecture of a hierarchy of controllers of sufficient scale.
• 9. Resiliency of slice control and super slice control.

10.OAM within a slice, between slices. 11.Security within slice, between slices. 12.Start/Stop/Management of applications residing within a slice. ICN? Non IP? ………… many more ………

Thank You