[Base Station Encyclopedia] UMPT Boards for BBUs (BBU Boards, Best Fri ...

Rosakitty
Rosakitty  Silver  (1)
5 years 29 days ago  View: 50793  Reply: 26

 

 

Do you know what a UMPT is?

Do you know how to use a UMPT?

Do you know how many members the UMPT family has?

……

This post brings you to the world of UMPT boards.

 

 

What is a UMPT?

The universal main processing and transmission unit (UMPT) can serve as a main control board working in any mode.

A UMPT board can be configured in either a BBU3900 or a BBU3910.


 For details, see section "UMPT" in BBU Hardware Description.

 



 

What are the functions and working principle of a UMPT board?

The UMPT performs the following functions:

·         Manages configurations and devices, monitors performance, and processes signaling.

·         Provides the USB port, transmission port, and interconnection port to achieve BBU maintenance on the local maintenance terminal (LMT), signal transmission, and BBU interconnection.

The working principle of the UMPT is shown in the following figure.

 

 For details, see section "UMPT" in BBU Hardware Description.

 



 

What are the types of UMPT boards?

From SRAN9.0 onwards, UMPT boards are classified into the following types:

l  UMPTa series boards: UMPTa1, UMPTa2, and UMPTa6

l  UMPTb series boards: UMPTb1 and UMPTb2

UMPTa series boards are used since RAN14.0/eRAN3.0, and UMPTb series boards are used since SRAN8.0/GBSS15.0/RAN15.0/eRAN6.0. As required by UMTS mode, the UMPTb1 board can be used since RAN14.0 V200R014C00SPC370.

All UMPT boards have the same appearance: On the upper left of a UMPT panel, there is a silkscreen "UMPT". On the lower left of a UMPT panel, there is a label indicating the type of a UMPT board.

 

 

For details, see section "UMPT" in BBU Hardware Description.

 



 

 

What modes are supported by UMPT boards?

Board Type

Applicable Mode

UMPTa1 or UMPTa2

GSM, UMPT, LTE(FDD), and co-MPT multiple modes.

UMPTa6

LTE(FDD), LTE(TDD)

UMPTb1 or UMPTb2 

GSM, UMPT, LTE(FDD), and co-MPT multiple modes.

For details, see section "UMPT" in BBU Hardware Description.

 



 

What are the application scenarios of those UMPT boards?

Now, the following table describes the application scenarios of UMPT boards from the perspective of their working modes. ^_^

Working Mode

Configuration Principle

GSM

UMPT boards can be used in eGBTSs since SRAN8.0/GBSS15.0.

l  The UMPTb1 is recommended.

l  If the eGBTS requires a GPS reference clock, a USCU is preferentially configured or a UMPTb2 can be configured alternatively.

UMTS

1. In SRAN7.0/RAN14.0, the UMPTa1 is recommended. From SRAN8.0/RAN15.0 onwards, the UMPTb1 is recommended.

A UMPTa1 or UMPTb1 must be configured in the following scenarios:

l  The base station needs to support the IPsec and PKI features.

l  The signaling processing capability exceeds 170 CNBAP/s.

l  There is a need for UMTS-to-LTE evolution.

2. When a site has been configured with a UMPTa2 and a NodeB needs to be added at the site, the existing UMPTa2 can be used as the main control board of the newly added NodeB.

3. If the site requires a GPS reference clock, a USCU is preferentially configured or a UMPTb2 can be configured alternatively.

LTE FDD

1. In SRAN7.0/eRAN3.0, the UMPTa2 is recommended. From SRAN8.0/eRAN6.0 onwards, the UMPTb1 is recommended.

A UMPTa2 or UMPTb1 must be configured in the following scenarios:

l  The signaling capability of the main control board exceeds 60000 BHCA.

l  The maximum number of UEs in RRC connected mode exceeds 5400.

2. When a site has been configured with a UMPTa1 and an LTE FDD base station needs to be added at the site, the existing UMPTa1 can be used as the main control board of the newly added LTE FDD base station.

3. When a site requires a GPS reference clock, a UMPTa6 or UMPTb2 can be configured.

LTE TDD

1. In eRAN3.0/eRAN3.1, a UMPTa6 is configured by default. From eRAN6.0 onwards, a UMPTb2 is preferentially configured. At a SoftBank site using any software version, a UMPTa6 is preferentially configured.

2. If BBUs need to be interconnected with USUs, a UMPTa6 or UMPTb2 is required.

3. When a base station needs to be converted to support multiple modes including LTE TDD, a UMPTb2 must be configured. (SoftBank still uses a UMPTa6.)

4. When the maximum number of UEs in RRC connected mode exceeds 5400 at a site, a UMPTa6 or UMPTb2 must be configured.

Multiple modes

1. From SRAN8.0 onwards, a UMPTb1 is preferentially configured in co-MPT multimode scenarios.

2. When a base station has been configured with a UMPTa1 or UMPTa2 and needs to be converted to a multimode base station, the existing UMPTa1 or UMPTa2 can still be used.

3. When each mode in a multimode base station needs to meet the preceding requirements for the GSM, UMTS, LTE FDD, and LTE TDD modes, a UMPTb1 is required.

4. When a base station requires a GPS reference clock, a UMPTb2 can be configured.

 For details, see section "BBU Board Configuration" in 3900 Series Base Station Configuration Principle (Global).

 



  

How to determine the working mode of a UMPT?

Indicators R0, R1, and R2 on the UMPT panel are used to determine the working mode of the UMPT board.

 For details, see section "UMPT" in BBU Hardware Description.


 

The UMPT board has a CI port which does not exist on other main control boards. What is this port used for?

UMPT boards can be used to achieve BBU interconnection through UCIU+UMPT or UMPT+UMPT. The CI port is used to connect the UCIU or UMPT in the other BBU.

  For details, see section "UMPT" in BBU Hardware Description and section "Inter-BBU Signal Cable Connections" of chapter "Cable Connections" in 3900 Series Base Station Cables.

 



 

How is the UMPT board connected to a computer to implement local BBU maintenance?

The USB port on a UMPT is used for connecting the UMPT to a computer.

To connect a UMPT to a computer, do as follows: Connect the USB connector at one end of the USB-to-Ethernet cable to the USB port on the UMPT, and connect the Ethernet connector of at the other end of the cable to the computer.

 

For details, see the following contents:

l  Section "UMPT" in BBU Hardware Description

l  Section "Adapter Used for Local Maintenance" of chapter "Cable Connections" in 3900 Series Base Station Cables

l  Section "Logging In to the LMT and Disabling the DHCP Function" in 3900 Series Base Station Commissioning Guide

 



 

 

Can a UMPT be used as a spare part to replace a WMPT or LMPT?

No, a UMPT cannot be used to replace a WMPT or LMPT.

If a WMPT or LMPT needs to be replaced by a UMPT, software configurations need to be modified after hardware replacement is complete.

In terms of hardware, the operations of replacing a WMPT with a UMPT are the same as those of replacing a WMPT with a new WMPT. For details, see section "Replacing the WMPT" in the corresponding site maintenance guide. For details about the configuration modification, see RAN Reconfiguration Guide and eRAN Reconfiguration Guide.

 



 

 

Do you want to learn more about UMPT boards?

Then, show your questions!


 

For more information, you can visit Wireless Network Information Center

Product Solution Version Product Version Link
BBU Hardware Description SRAN9.0 MBTS V100R009C00 BBU Hardware Description
BBU Hardware Description SRAN10.1 MBTS V100R010C10 BBU Hardware Description
BBU Hardware Description SRAN11.1 MBTS V100R011C10 BBU Hardware Description

 

本帖最后由 Cilla.luo 于 2017-05-20 14:29 编辑
Comment
user_3021449 user_3021449  1 year 11 months ago

Is it possible to change the connection port 1 elec. to port0 opt. via user interface? 

x00106333
x00106333  Gold 
5 years 23 days ago

Quote 2 #

Hi

 

organised information, thanks

Billel_BSS Posted on 2014-08-21 16:34


We have a plan to pulish a series of FAQ which is named as  [Base Station Encyclopedia] to focus on globe customers  hotspot issues such as some bbu boards. All these hotspot issues are decided by globe customers.

Do you like it?  Whats your hotspot issue?

Pls don’t hesitate to tell us your opinion. Looking forward to your reply.

 

bokhtear
bokhtear  Jackeroo 
5 years 21 days ago
like it.
codrut.nasta
codrut.nasta  Jackeroo 
4 years 22 days ago
;)
faz
faz  Platinum 
4 years 8 days ago
Good one 
sohaib_alhilf
sohaib_alhilf  Gold 
4 years 6 days ago

DEAR ALL 

IS THERE INFORMATION ABOUT THE CORE LTE TDD

BEST REGARD

faz
faz  Platinum 
3 years 11 months ago

Quote 1 #

Do you want to learn more about UMPT boards?

Then, show your questions!


 

For more information, you can visit the website http://support.huawei.com and download BBU Hardware Description under the following path: Support > Product Support > Wireless Network > GSM &UMTS &LTE > SingleRAN > SingleRAN_MBTS > BTS3900 > BTS3900 V100 > BTS3900 V100R009 > BTS3900 V100R009C00.


 

g00139240 Posted on 2014-08-21 09:57


Thanks

Greatshan
Greatshan  Junior 
3 years 11 months ago

Very useful..

 

tham
tham  Jackeroo 
3 years 11 months ago
we need to convert the WMPT & LMPT to UMPT , how to do the software part.
mehedi_hassan
mehedi_hassan  Silver 
4 years 11 months ago
its nice. thanks
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