5G Softwarization and Slicing st /2015 ITU FG-IMT-2020 , Turin, Italy, Sept 21 Peter Ashwood-Smith (peter.ashwoodsmith@huawei.com)
Diversified Challenges and Gaps to Reach 5G Network Latency Throughput Connections Mobility 5G Architecture 1 ms 10G bps 1,000K 500 km/h Slicing E2E Per Connections High-speed Ability Latency Connection Per km 2 Railway Required GAP 30~50x 100x 100x NFV/SDN 1.5x 30~50ms 100Mbps 350Km/h Inflexible 10K LTE Challenges because many of these requirements are conflicting HUAWEI TECHNOLOGIES CO., LTD.
5G will support software defined Radio Access Technologies (RATs) Error Attr - Z Correction Number of Antennas Attr - X Frequencies /bands Power Long Range, High Power Lower Bandwidth Direction No signaling, No SCMA reservation Attributes.. Short Range, High Bandwidth, Signaling/ F-OFDM HUAWEI TECHNOLOGIES CO., LTD. Reservations Attributes..
5G will support software defined X-haul (Front / Back / Mid etc.) CRAN CRAN TSDN CONTROLLED Packet/Optical PATH, B/W, QOS, Wavelengths, Time Slots, Labels, Protection, etc. Mm-wave/uWave CRAN CRAN HUAWEI TECHNOLOGIES CO., LTD.
5G will likely use SDN controlled fabrics within the C-RAN/DC TSDN CONTROLLED XHAUL Swtich Swich Switch 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. TSDN CONTROLLED ORCHESTRATION XHAUL SOFTWARE TO ALLOCATE VMs, CPUs, Memory, Swtich Swich Switch FPGAs Containers/Processes , Grouping, Affinity, Scheduling, Recovery.. VM CORE/META CONTAINE L CONTAINE CONTAINE R CORE/META R R VM L VM FPGA/Custo HUAWEI TECHNOLOGIES CO., LTD. m
All the packet processing functions vEPC likely are software controllable. TSDN CONTROLLED Likely there will be XHAUL numerous API’s into the various network functions that make Swtich Swich Switch up the packet layer processing. These are all essentially control knobs for 5G F5 F4 F1 F2 F6 Enable Mobile Edge Computing. F3 HUAWEI TECHNOLOGIES CO., LTD.
Slicing – Software control of all attributes including UE CONTROLLERS INTER C-RAN/DC (to CORE/vEPC) CRANs – runs RAT, CORE and, MEC Digital Radio Any server/core, any function! Red Slice – Ultra DWDM RAT / CN Reliable, Low B/W, long RAT/ CN range, 400km/hr CN / MEC Analog or Yellow Slice – Highest RAT Digital or B/W, short range CN/MEC Packet Radio Blue Slice – Lowest RAT/ CN RAT/MEC Delay, Low signaling Idle/off DWDM Idle resources can be moved from Slice to Slice. Slice UE Any resource can be part of any slice. Resources Any antenna, TSDN Hybrid Slice Dynamic adjustment. Resources include servers, OS/Antennas any server Front Haul IDC intra/inter C-RAN B/W, C-RAN to Antenna B/W and HUAWEI TECHNOLOGIES CO., LTD. etc. (within delay). Backhaul o DWDM UE device antennas/radio components.
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 ……… HUAWEI TECHNOLOGIES CO., LTD.
Thank You
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