Hello everyone！
Today, I will share detailed information about the BBU boards.
BBU Board Type
The BBU boards are classified into main control boards and baseband processing units based on their functions.
Main Control Board Type
UBBP
A UBBP is a universal baseband processing unit.
The UBBP is the most widely used board because of its various models and supporting all RATs.
A UBBP performs the following functions:
Provides CPRI ports for communication with RF modules.
Processes uplink and downlink baseband signals.
Supports the multiplex of baseband resources among different modes, thereby implementing multimode concurrency.
LBBP
An LBBP is an LTE baseband processing unit.
The LBBP supports co-BBP for single-mode LTE(FDD)/LTE(NB-IoT)/LTE(TDD) and multimode LM.
An LBBP performs the following functions:
Provides CPRI ports for communication with RF modules.
Processes uplink and downlink baseband signals.
WBBP
A WBBP is a WCDMA baseband processing unit.
The WBBP supports UMTS.
A WBBP performs the following functions:
Processes uplink and downlink baseband signals.
Provides CPRI ports for communication with RF modules.
Supports interference cancellation (IC) within the board.
When CPRI cables connect RF modules carrying corresponding cells to a WBBPd, the WBBPd installed in slot 2 or 3 supports IC of uplink data.
Baseband processing unit Type
UMPT
A UMPT is a universal main processing and transmission unit.
The UMPT is the most widely used board because of its various models and supporting all RATs.
A UMPT performs the following functions:
Manages configurations and devices, monitors performance, and processes signaling of a base station.
Processes signaling and manages resources for other boards in the BBU.
Provides USB ports, transmission ports, and a maintenance port, which are used for signal transmission, automatic software upgrade, and LMT- or MAE-based BBU maintenance.
LMPT
An LMPT is an LTE main processing and transmission unit.
The LMPT supports Single-RAT LTE(FDD)/LTE(NB-IoT)/LTE(TDD) and multi-RAT LT/LM are supported.
An LMPT performs the following functions:
Manages configurations and devices, monitors performance, and processes signaling of a base station.
Processes signaling and manages resources for other boards in the BBU.
Provides USB ports, transmission ports, and a maintenance port, which are used for signal transmission, automatic software upgrade, and LMT- or MAE-based BBU maintenance.
Provides the system clock.
GTMU
A GTMU is a GSM transmission & timing & management unit.
The GTMU supports GSM.
A GTMUb/GTMUc performs the following functions:
Manages configurations and devices, monitors performance, and processes signaling of a base station.
Processes signaling and manages resources for other boards in the BBU.
Provides USB ports, transmission ports, and a maintenance port, which are used for signal transmission, automatic software upgrade, and LMT- or MAE-based BBU maintenance.
Provides CPRI ports for communication with RF modules.
The GTMUc provides surge protection. Therefore, no surge protection board is required if transmission cables are to be connected to Ethernet electrical ports on an outdoor cabinet.
Panel of the BBU board
UBBP
Figure 1 UBBPd/UBBPe panel
Figure 2 UBBPei panel
Figure 3 UBBPem panel
Figure 4 UBBPex2 panel
Figure 5 UBBPf1 panel
Figure 6 UBBPf3 panel
Figure 7 UBBPg1 panel
Figure 8 UBBPg panel
LBBP
Figure 9 LBBPc panel
Figure 10 LBBPd panel
WBBP
Figure 11 WBBPa panel
Figure 12 WBBPb panel
Figure 13 WBBPd panel
Figure 14 WBBPf1/WBBPf2/WBBPf3/WBBPf4 panel
Figure 15 WBBPf5/WBBPf6 panel
UMPT
Figure 16 UMPTa/UMPTb1/UMPTb2 panel
Figure 17 UMPTb3/UMPTb9 panel
Figure 18 UMPTe panel
Figure 19 UMPTg panel
Figure 20 UMPTga panel
Figure 21 UMPTg panel (with the "GNSS" silkscreen)
LMPT
Figure 22 LMPT panel
GTMU
Figure 23 GTMUb panel
Figure 24 GTMUc panel
There are too many types of boards. Therefore, only some pictures are displayed here.
Board Models Supported by the BBU
The boards supported by different types of BBUs are different. Next, I will introduce the boards supported by different types of BBUs.
If you are not familiar with the BBU model, you can refer to my previous post: Huawei BBU Introduction
BBU3900 and BBU3910
The following table describes boards supported by different types of BBUs, regardless of mode and configuration.
Table 1 Boards supported by BBUs
Board Type | Board Supported by a BBU3900 | Board Supported by a BBU3910 |
Main control board | GTMUb/GTMUc | GTMUb/GTMUc |
LMPT | UMPTb (UMPTb1/UMPTb2/UMPTb3/UMPTb9) | |
UMPTa (UMPTa1/UMPTa2/UMPTa6) | UMPTe (UMPTe1/UMPTe2) | |
UMPTb (UMPTb1/UMPTb2/UMPTb3/UMPTb9) | UMPTg (UMPTg1/UMPTg2/UMPTg3) | |
UMPTe (UMPTe1/UMPTe2) | UMPTga (UMPTga1/UMPTga2/UMPTga3) | |
Baseband processing unit | UBBPd (UBBPd1/UBBPd2/UBBPd3/UBBPd4/UBBPd5/UBBPd6/UBBPd9) | UBBPd (UBBPd1/UBBPd2/UBBPd3/UBBPd4/UBBPd5/UBBPd6/UBBPd9) |
UBBPe (UBBPe1/UBBPe2/UBBPe3/UBBPe4/UBBPe5/UBBPe6/UBBPe18) | UBBPe (UBBPe1/UBBPe2/UBBPe3/UBBPe4/UBBPe5/UBBPe6/UBBPe18) | |
UBBPg (UBBPg1/UBBPg1a) | UBBPg (UBBPg1/UBBPg1a/UBBPg2/UBBPg2a) | |
WBBP (WBBPa/WBBPb1/WBBPb2/WBBPb3/WBBPb4/WBBPd1/WBBPd2/ WBBPd3/WBBPf1/WBBPf2/WBBPf3/WBBPf4) | UBBPei | |
LBBP (LBBPc/LBBPd1/LBBPd2/LBBPd3/LBBPd4/LBBPd5) | UBBPem | |
UBBPex2 | ||
UBBPf1 | ||
UBBPf3 | ||
Transmission extension board | UTRP (UTRP2/UTRP3/UTRP4/UTRP9/UTRPa/UTRPb4/UTRPc) | UTRPa/UTRPc |
Baseband radio interface board | UBRI/UBRIb | UBRIb |
Satellite card and clock unit | USCUb22/USCUb16/USCUb14/USCUb11/USCUb18 | USCUb22/USCUb16/USCUb14/USCUb11/USCUb18 |
Fan module | FAN/FANc | FANd/FANe |
Power module | UPEUa/UPEUb/UPEUc/UPEUda | UPEUd |
Environment interface unit | UEIU | UEIU |
Interconnection board | UCIU/UCCU | UCCU |
BBU5900
The following table describes boards supported by different types of BBUs, regardless of mode and configuration.
Table 2 Boards supported by BBUs
Board Type | Boards Supported by the BBU |
Main control board | UMPTb (UMPTb1/UMPTb2/UMPTb3/UMPTb9) |
UMPTe (UMPTe1/UMPTe2) | |
UMPTg (UMPTg1/UMPTg2/UMPTg3) | |
UMPTga (UMPTga1/UMPTga2/UMPTga3) | |
Baseband processing unit | UBBPd (UBBPd1/UBBPd2/UBBPd3/UBBPd4/UBBPd5/UBBPd6/UBBPd9) |
UBBPe (UBBPe1/UBBPe2/UBBPe3/UBBPe4/UBBPe5/UBBPe6/UBBPe18) | |
UBBPg (UBBPg1/UBBPg1a/UBBPg2/UBBPg2a/UBBPg3b/UBBPg3/UBBPg4) | |
UBBPei | |
UBBPem | |
UBBPex2 | |
UBBPf1 | |
UBBPf3 | |
UBBPfw1 | |
Satellite card and clock unit | USCUb18/USCUb16/USCUb14/USCUb11 |
Power module | UPEUe |
Environment monitoring unit | UEIUb |
Fan module | FANf |
BBU5900A (AC) and BBU5900A (DC)
The BBU5900A (AC) and BBU5900A (DC) support different boards. Table 3 describes boards supported by the BBU5900A (AC) and Table 4 describes boards supported by the BBU5900A (DC) regardless of the mode and configuration.
Table 3 Boards supported by the BBU5900A (AC)
Board Type | Boards Supported by the BBU |
Main control board | UMPTe (UMPTe1/UMPTe2)a |
UMPTg (UMPTg1/UMPTg2/UMPTg3) | |
UMPTga (UMPTga1/UMPTga2/UMPTga3) | |
Baseband processing unit | UBBPg(UBBPg1/UBBPg1a/UBBPg2/UBBPg2a/UBBPg3b/UBBPg3/UBBPg4) |
UBBPe (UBBPe1/UBBPe2/UBBPe3/UBBPe4/UBBPe5/UBBPe6/UBBPe18) | |
UBBPd (UBBPd1/UBBPd2/UBBPd3/UBBPd4/UBBPd5/UBBPd6/UBBPd9) | |
UBBPem | |
UBBPf1 | |
UBBPex2 | |
UBBPf3 | |
Fan module | FANf |
FANh | |
Power module | UPEUh |
Environment monitoring unit | UEIUd |
Power surge protection module | UPSUb |
a: The UMPTe is applicable only to areas above -20°C (-4 °F). | |
Table 2 Boards supported by the BBU5900A (DC)
Board Type | Boards Supported by the BBU |
Main control board | UMPTe (UMPTe1/UMPTe2)a |
UMPTg (UMPTg1/UMPTg2/UMPTg3) | |
UMPTga (UMPTga1/UMPTga2/UMPTga3) | |
Baseband processing unit | UBBPg(UBBPg1/UBBPg1a/UBBPg2/UBBPg2a/UBBPg3b/UBBPg3/UBBPg4) |
UBBPe (UBBPe1/UBBPe2/UBBPe3/UBBPe4/UBBPe5/UBBPe6/UBBPe18) | |
UBBPd (UBBPd1/UBBPd2/UBBPd3/UBBPd4/UBBPd5/UBBPd6/UBBPd9) | |
UBBPem | |
UBBPf1 | |
UBBPex2 | |
UBBPf3 | |
Fan module | FANf |
FANh | |
Power module | UPEUg |
Environment monitoring unit | UEIUd |
Power surge protection module | UPSUa |
a: The UMPTe is applicable only to areas above -20°C (-4 °F). | |
As shown in the preceding table, there are other boards in the BBU. However, this section describes only the common main control boards and baseband processing units.
That's all I'm going to share. You are welcome to read and comment.
