4G BBU
XLinkTM 4G Distributed Small Cell Solution is composed of three parts: Baseband Unit (BBU) expansion unit (EU) and Radio Unit (RU). Which is connected to the mobile core network through fixed network broadband, Private network return to provide mobile communication signal coverage for indoor scenes, achieve accurate depth coverage and capacity coverage, improve the Internet experience of network data services, and absorb hot traffic for macro network data distribution.
SBBA122D is a 4G baseband unit based on NXP ARM platform for the distributed small base station of Sageran, which is mainly responsible for baseband signal processing.
- Self-developed gNB Protocol Stack
- Low cost and easy to deploy.
- The fronthaul interface uses CPRI to simplify the complexity of EU
|
Item |
Specifications |
|
Standard |
3GPP R9 |
|
Carrier Bandwidth |
20MHz |
|
SCS |
≤15kHz |
|
Capability |
2*20MHz 2T2R cell； |
|
NR Peak Data Rate |
FDD 20MHz: DL:150Mbps，UL:75Mbps |
|
User Capability |
Active users≥128/cell, connected users≥384/cell; |
|
Cell Split and Joint |
Support RF merge |
|
Synchronization |
GPS, BeiDou，1588 V2，1PPS+TOD |
|
Clock |
±1.5μs holdover without synchronization clock ： ≤1h（Ordinary OCXO） 8h（High-end crystal oscillator module） 24h（High-end crystal oscillator module） |
