2018-08-07Ericsson 5G RAN System_overview_pa7

1、Ericsson 5G RAN System,5G Overview 5G VRAN Part 5G BPU Part 5G TRANSPORT Part,Content,5G Overview,Content,5G的3大类应用场景,Network Slicing,Radio-base Station Site,Local Switching,Primary,Access,Aggregation,Aggregation,Enhanced Broadband,Massive MTC,Mission Critical MTC,Virtualization,Hub,Central Office,Ag

2、gregation,Switching,Primary,Antenna,Critical Comm. & MTC,Enterprise & Industry,Enhanced Mobile Broadband,Massive MTC,5G requirements and use cases,10-100X End-user Data Rates,5X Lower Latency,10-100X Connected Devices,10yr Battery Life,1000X Mobile Data Volumes,Secure,Sustainable,5G Requirements Ext

3、reme & Diverse,Common Network Dynamic & Secure Network Slices,Massive MTC,10 years battery lifetime 80% cost reduction 20dB better coverage,7,NR System Techniques | Ericsson Internal | LZU1430488 Uen, Rev A | 2016-09-07 | Page,5G KPI (38.913),速率,时延,覆盖,频谱,移动性,容量,Ericsson confidential | 2018-01,Multip

4、le architecture options,EPC+,NextGen Core,LTE,NR,NR,LTE,LTE,NR,OPTION 3,OPTION 7,OPTION 1,OPTION 2,OPTION 4,OPTION 5,OPTION 6,OPTION 8,Current architecture Supported in 3GPP Not supported in 3GPP,“Independent” overlay. Totally new CN architecture. Highest potential for further evolution Standardizat

5、ion : End of Jun 2018 Ericsson Support: Q2 2019 (RAN / CN) Use Case in 2019/2020: eMBB + FWA,Tight interworking with LTE. Evolved EPC Fastest TTM Standardization : End of Dec 2017 Ericsson Support: Q4 2018 (RAN / CN) Use Case in 2019/2020: eMBB + FWA,Initial 5G Architecture,LTE,NR,NR,NSA Option 3,SA

6、 Option 2,5G Core,5G Enabled Core,NR,NSA: Non-standalone SA: Standalone,3GPP 5G Architecture -Common CN/RAN interface,Mobility between NR/LTE can be handled without CN assistance,NextGen Core (5GC) Core Network for Next Generation System en-gNB NR node connected to EPC using S1 interfaces gNB NR nod

7、e connected via NG interfaces to 5GC ng-eNB LTE node connected via NG interfaces to 5GC N2, N3 The CP and UP interface between a gNB/ng-eNB and 5GC, respectively TR(x)P Transmission and Reception Point The antenna panel(s) used by eNB/gNB,eNB/ng-eNB,en-gNB/gNB,5G VRAN Part,Content,3GPP Reference Arc

8、hitecture,Reference: 3GPP TS 38.410,5GC,gNB,CU,DU,DU,gNB,CU,DU,DU,F1,F1,Xn,NG,NG,Central Unit a logical node hosting RRC, SDAP and PDCP protocols, and controls the operation of one or more DUs. Distributed Unit a logical node hosting RLC, MAC and PHY layers, and its operation is partly controlled by

9、 CU. One DU supports one or multiple cells. One cell is supported by only one DU.,cn-ded-ctrl,S1-U or NG eq,RLC-U,pp-ctrl,Radio,cell-ctrl,S1-AP or NG eq,IP,= Provided ESM service (optional label),= Required ESM service,= Other transport (client),= Other transport (server),LABEL,UEF,PPF,INET,CELLF (S

10、AF),L1F,SGW and/or UPF,MME and/or AMF,S1F and/or NGF (INSF),PLMN ID,MMEC,L2F,?,l2-cfg,l1-cfg,BBUE (RLC) (MAC),BBAP-u,PP-L,C2,E6,Xn,XNF,3GPP vRAN LOGICAL architecture,TP,DRB,bb-cell-cfg,CELL ID,UPCF,ENB ID,CELL ID,CELL ID,CELL ID,cch-ctrl,Xn,NG2 S1-MME,NG3 S1-U,BFCF,A1,PDCP,RRC,ONAP,A1F,UE ID,A1,TP I

11、D,TYPE,ENB ID,MO:CELL,MO:,= Domain object owner/controller,CELL ID,l2-ctrl,TYPE,xn-ctrl,MO:XN,MO:S1/NG,rel-info,CELL ID,RELF,CELL ID,bb-ctrl,bfc-cfg,bfc-ctrl,CELL ID,upc-cfg,Radio,TP ID,l1-ctrl,CELL ID,DRB/SRB,SRB0,BCF,MO:BB,C5-C (F1-C),C5-U (F1-U),ue-ctrl,CELL ID,Mobility,Service units,UEF - UE con

12、trol function Manages the UE state, baseband resource allocation and RRC/S1/Xn/A1 protocols for dedicated channels. CELLF - Cell control function Manages the cell state, cell admission, baseband resource allocation and RRC for common channels. Also responsible to handle the DU side UE context. PPF P

13、acket processing function Implements the PDCP layer for dedicated SRB and DRBs. S1F S1 control interface function Manages the S1 connection to a 4G CN, essentially representing a logical eNB. Developed from existing INSF function. NGF NG control interface function Manages the NG connection to a 5G C

14、N, essentially representing a logical gNB. Developed from existing INSF function. XNF Xn control interface function Manages the Xn interface for interoperability with non-Ericsson gNB and LTE eNB for NSA. RELF Relations Function Relation discovery and translation function e.g. determine cell neighbo

15、rs, external cell to Xn function mapping, non-unique to unique cell id mapping. Initially based on geographical coordinates.,SIF System Information Function Manages building of “other system information” containing system information logically owned by the CU in the 3GPP architecture. F1CF F1 contro

16、l interface central function Adaptor implementing the F1-C interface towards a 3GPP DU. F1DF F1 control interface distributed function Adaptor implementing the F1-C interface towards a 3GPP CU. A1F A1 control interface function Adaptor implementing the ONAP A1 interface. BCF Baseband control functio

17、n Control function, abstraction layer, for baseband services. L2F Layer 2 function Implements layer 2 functions for common and dedicated channels, implemented on x86. L1F Layer 1 function Implements layer 1 functions north of “C2” for common and dedicated channels. UPCF Scheduler (cell) function Cel

18、l level? Scheduling. BFCF Beam forming control function Control function for beam forming, e.g. weight calculations, implemented on x86.,cn-ded-ctrl,NG-U or S1-U,RLC-U,pp-ctrl,Radio,cell-com-ctrl,NG-AP,IP,= Provided ESM service (optional label),= Required ESM service,= Other transport (client),= Oth

19、er transport (server),LABEL,UEF,PPF,INET,CELLF,L1F,UPF or SGW,AMF,NGF,PLMN ID,L2F,?,l2-cfg,l1-cfg,BBUE (RLC) (MAC),BBAP-u,PP-L,C2,5G TB Application TRF Logical View NSA,TP,DRB,UPCF,GNB ID,CELL ID,N2,N3 S1-U,BFCF,PDCP,RRC,TP ID,MO:CELL,MO:,= Domain object owner/controller,CELL ID,l2-ctrl,TYPE,xn-ctrl

20、,CELL ID,RELF,bfc-cfg,bfc-ctrl,CELL ID,upc-cfg,Radio,TP ID,l1-ctrl,CELL ID,DRB,SRB0,BCF,C5-C (F1-C),C5-U (F1-U),ue-ctrl,CELL ID,cell-ded-ctrl,SRB 1 & 2,bb-cell-cfg,BB ID,MO:BB,CELL ID,bb-ue-cfg,Paging,UE ID,ue-ctrl-xn,RB ID,srb,cell-rel,XNF,MO:XN,SIF,sysinfo,Xn,X2F,MO:X2,X2,UE ID,ue-ctrl-x2,eNB,E6F,

21、MO:E6,E6,MO:NG,C5-U,DRB,bb-cch-cfg,CELL ID,S1-AP,MME,E1,VRAN Hardware Architecture,Basic cabinet configuration Virtualized L3 vEPG (TBD) Capacity Max number of users: 100 (TBD) Max aggregated throughput: 40 Gbps (TBD) Max number of C5 interfaces 40 (TBD) 10 GbE 10 (TBD) 40 GbE All interfaces are opt

22、ical QSFP+/28 Software platform TBD Power consumption 3.5 kW (TBD),LEAP vRAN Cabinet (Q3 2018),PSU / PDU,“S1-C”,“S1-U”,NR “C5”,LTE “C5”,Processing: 6-8 Leap GPP, 2x 20 cores (Xeon 6148) Switch: 1-2 Leap TN Router Firewall: 1 Leap GPP (TBD) SCU: 2 System Control Unit (remote management),IP planning C

23、EE IP plan is extensive VRAN is self contained (pre-selected), but configurable HW cabled but no pre-staging CEE deployment uses Fuel (Mirantis) Atlas deployment is scripted VRAN is a mixture of standalone and MANO type deployment BPF requires alteration of BBU from Standalone NR setup / UE must be

24、reconfigured (SALT) E2E calls for / UE differ to Intel,overall flow,5G BPU Part,Content,V2 radio,V2 radio,The BPU cabinet consists of Leap HW BBg2.1e GPS32 splitter PSU + PDU BPU HW is scalable and possible configure differently depending on BW (100 or 200 MHz) Number of RUs (1 12 TBD) BF algorithm

25、(RAIT, RAT, ) Target is to have configurations to support CMCC trials The rest of the world,BPU cabinet midband pooling of resources,TN Router,BBg2.1e,GPP,SCU,1xQSFP,1xQSFP,2xQSFP,2xQSFP,GPS32 splitter,TN Router,BBg2.1e,GPP,SCU,TN Router,BBg2.1e,GPP,SCU,BBg2.1e,GPP,TNB,1xQSFP,GPS,RJ45,1xQSFP,1xQSFP,

26、TNA,1xQSFP,Backplane,NxQ,PSU,PSU,1-12 V2 radios per cabinet,BPU,SA: BS Architecture 16 DL/8 UL layers, 100 MHz,BBg2.1e L1, 100 MHz 16 DL/8 UL layers,V2.0 100 MHz 16 layers,SCU,BBg2.1e L1, 100 MHz 16 DL/8 UL layers,V2.0 100 MHz 16 layers,BBg2.1e L1, 100 MHz 16 DL/8 UL layers,V2.0 100 MHz 16 layers,GP

27、S-splitter,PSU PDU,“F1” interface,External GPS,AC or DC,Ericsson Router 6675,Back plane,Leap TN,Leap GPP BF control,Leap GPP L2 (MAC/RLC/UPC) CELLF OAM (DHCP, DUC, ),TNB TNC,TNB TNC,TNB TNC,BPU,NSA: BS Architecture 16 DL/8 UL layers, 100 MHz,BBg2.1e L1, 100 MHz 16 DL/8 UL layers,V2.0 100 MHz 16 laye

28、rs,SCU,BBg2.1e L1, 100 MHz 16 DL/8 UL layers,V2.0 100 MHz 16 layers,BBg2.1e L1, 100 MHz 16 DL/8 UL layers,V2.0 100 MHz 16 layers,PSU PDU,“F1” interface,External GPS,AC or DC,Ericsson Router 6675,TNB TNC,TNB TNC,TNB TNC,Back plane,Leap GPP BF control,Leap GPP LTE + OAM (1.5 cores per 4x4 MIMO & 20 MH

29、z),Leap GPP L2 (MAC/RLC/UPC) CELLF OAM (DHCP, DUC, ),BB5216 testbed CPRI i/f, 10 MHz,LTE RRU 10 MHz 2 TX/RX,LTE RRU 10 MHz 2 TX/RX,LTE RRU 10 MHz 2 TX/RX,Leap TN,TNC TNB,GPS-splitter,SA Cabinet overview,1 DU 1-sector cabinet,1 DU 3-sector cabinet,2 DU 6-sector cabinet,3 DU 9-sector cabinet,NSA Cabin

30、et overview,1 DU 1-sector cabinet,1 DU 3-sector cabinet,2 DU 6-sector cabinet,3 DU 9-sector cabinet,SA: Interconnect (TN 1.0) 3 DU, 100 MHz,DUC,BF ctrl,L2,DUC,BF ctrl,L2,DUC,BF ctrl,L2,Power and GPS cabling is not shown in the block schematics,DU#3,DU#1,DU#2,DU#3,DU#2,DU#1,2m 100GE,0.5m 100GE,0.5m 1

31、00GE,NSA: Interconnect (TN 1.0) 3 DU, 100 MHz,DUC,BF ctrl,L2,DUC,BF ctrl,L2,DUC,BF ctrl,L2,LTE,Power and GPS cabling is not shown in the block schematics,DU#2,DU#1,DU#3,DU#1,DU#2,DU#3,2m 100GE,0.5m 100GE,0.5m 100GE,MT NR NSA Solution,5G TRANSPORT Part,Content,Ericsson Cloud RAN A Flexible Architecture supporting many options,Distributed RAN Centralized RAN Virtualized RAN Elastic RAN,S1/NG,S1/NG,S1/NG,S1/NG,E5,(e)CPRI,F1,S1/NG,X2/Xn,X2/Xn,E5,F1,S1/NG,S1/NG,S1/NG,(e)CPRI,(e)CPRI,1-10G 5ms,10-40G 10-30ms,10-40G 30us,10