5G NR O-RAN 基带单元 (O-CU and O-DU)

集成硬件和软件功能包，包括5G O-CU和O-DU功能。

简述

京奥通信5G NR O-RAN基带单元（vBBU）由集中单元（CU）和分布式单元（DU，它将实现5G NR RAN gNodeB功能的集中化和虚拟化，如用户数据传输、切换/移动性控制、频谱/网络共享、定时和同步、定位、会话管理等。京奥通信5G NR O-RAN基带单元拥有四个10Gbps SFP+光纤端口，并通过基于eCPRI（增强公共无线电接口）协议的光缆支持多达四个作为O-RAN 7-2x拆分选项的前传网关（FHGW/HUB）。

性能特点

  • TDD双工模式
  • 支持多小区
  • 每个小区400个活动用户和1200个RRC用户

符合标准

  • O-RAN.WG8.IOT
  • O-RAN.WG4.IOT
  • End-to-end Performance and Stress test
  • 3GPP 33.511 SCAS

主要技术指标

3GPPR15 / R16
Network ArchitectureSA
Min. Server HardwareIntel® Xeon® Processor D-2177NT 1.9GHz 14 Cores, 2*16G RAM, 128GB SATA, CentOS Linux 7.2
Network InterfaceBackhaul: N2 to AMF/ N3 to UPF
Fronthaul: O-RAN 7-2x Category A split/ eCRPI
Transmission SchemeDL CP-OFDM/ UL CP-OFDM/ UL DFT-S-OFDM
Channel Bandwidth100MHz, 90MHz, 80MHz, 60MHz, 40MHz or 20MHz (Customized)
Duplex ModeTDD – Time Division Duplex
Max. NR Peak RateDDDDD DDSUU Frame Structure，Special Subframe 6:4:4

4T4R: Downlink 1.5Gbps, Uplink 230Mbps
2T2R: Downlink 750Mbps, Uplink 230Mbps

Cells & Capacity400+ Active Users and 1200+ RRC Users per cell

1 Cell @ 4T4R / 100MHz BW
2 Cells @ 2T2R / 100MHz BW
2 Cells @ 4T4R / 100MHz BW
4 Celles @ 2T2R / 100MHz BW

Cell Splitting & CombinationSupported
PRACHShort preamble, L = 139K; Format B4: Number of repetitions 12/ CP length 15.25us/ Preamble length 400us
HARQDL asynchronous HARQ/ UL asynchronous HARQ/ 16 parallel HARQ processes
RLC ModeTM/UM/AM
PDCP12/18 bits SN for DRBs/ IP header compression and decompression/ Ciphering and Deciphering/ Reordering based on SN/ Duplicate packet detection and removal/ Integrity protection
RRCRRC states (IDLE, Connected, Connected Inactive) and state transfer/ MIB broadcasting/ RRC Connection establish, re-configure and release/ SRB establish and release/ DRB establish/modify/release/ ARQ configure/ HARQ configure/ Paging/ Measurement/ Mobility management
NG InterfaceHandover/ Paging/ UE context management/ PDU session management/ NAS message transport/ NG interface management
Xn InterfaceHandover/ Paging/ UE context management/ Xn interface management
F1 InterfaceUE context management/ RRC message transport/ Paging/ F1 interface management
Sync Mode Supported1588 v2 / SyncE / GPS / Beidou
OAM InterfaceNETCONF