Got it
Huawei Enterprise Support Community
Community Forums Wireless & Microwave
Intermittent RF Unit Main...

Intermittent RF Unit Maintenance Link Failure

Created: Jan 3, 2021 02:26:47Latest reply: Jan 13, 2021 15:14:43 502 8 1 0 0
  HiCoins as reward： 0 (problem unresolved)
View the author 1#
Need help in here guys because 2G is down at all sectors on G18 and G900 only but its quite confusing because there's no cpri terminated at cabinet 0 slot 0 and the alarms only occured on that slot resulted to 2G down for every 2 hours. HT hq is ongoing troubleshooting until now since last week. Can somebody help me? How can I troubleshoot it on site if ever theres hardware problem?

Replacing the LAN cable going to transport is already done but same alarm again.
Attachment: You need to log in to download or view. No account? Register

Like (1) Dislike (0) Favorite(0) Share Report
Previous: L.E-RAB.FailEst.MME & S1AP INITIAL CONTEXT FAIL due to interaction with other procedure (MTC Call)
Next: Convert AP6050DN Fit AP into Fat AP
Featured Answers

Recommended answer

(2) (0)
Mohamed_Ahmed
Created Jan 3, 2021 18:58:31

Hello Dear
Kindly follow these below steps
1-Firstly check BBU3900 fan status in case of site outdoor
2-If these cells on one UBBP plz replace it and note be accurate to install it correctly
3-Check if there is any HW upgrade and check if UPEU report DC base station abnormal if yes plz check DC input power
4-If problem not solved plz replace GTMU with another new one after take backup of IP configuration
5-Finally and in bad luck if not solved plz replace BBU3900 backplane

waiting your feedback

thx my friend and hope to solve ur problem soon
View more
  • x
  • convention：

user_4056157
user_4056157 Created Jan 12, 2021 14:13:54 (0) (0)
Thank you sire, problem solved by replacing BBU. Thanks for the guide.  
All Answers
(0) (0)
2#
user_4056157
user_4056157 Created Jan 3, 2021 02:39:55

Is there a problem with the gtmu in here?
View more
  • x
  • convention：
(0) (0)
3#
BetterMing
BetterMing Created Jan 3, 2021 02:55:06

Hello, dear.
Please tell me the device model and alarm name. Thank you.
View more
  • x
  • convention：
(0) (0)
4#
user_4056157
user_4056157 Created Jan 3, 2021 14:41:30

This is the alarm Intermittent RF Unit Maintenance Link Failure-3731073-1
View more
  • x
  • convention：
(0) (0)
5#
user_4056157
user_4056157 Created Jan 3, 2021 14:43:02

It is BBU3900 with a umpte2. Then the ubbp used are wbbpd2 and ubbpd6
View more
  • x
  • convention：
(2) (0)
6#
Mohamed_Ahmed
Mohamed_Ahmed Created Jan 3, 2021 18:58:31

Hello Dear
Kindly follow these below steps
1-Firstly check BBU3900 fan status in case of site outdoor
2-If these cells on one UBBP plz replace it and note be accurate to install it correctly
3-Check if there is any HW upgrade and check if UPEU report DC base station abnormal if yes plz check DC input power
4-If problem not solved plz replace GTMU with another new one after take backup of IP configuration
5-Finally and in bad luck if not solved plz replace BBU3900 backplane

waiting your feedback

thx my friend and hope to solve ur problem soon
View more
  • x
  • convention：

user_4056157
user_4056157 Created Jan 12, 2021 14:13:54 (0) (0)
Thank you sire, problem solved by replacing BBU. Thanks for the guide.  
(0) (0)
7#
user_4075791
user_4075791 Created Jan 6, 2021 02:35:32

Thanks
View more
  • x
  • convention：
(0) (0)
8#
user_4034933
user_4034933 Created Jan 13, 2021 15:14:43

If you sure that hardware define as software,
you need to restart BBU for all technologies.
View more
  • x
  • convention：
Back to list

Comment

Advanced
B Color Image Link Quote Code Smilies
You need to log in to comment to the post Login | Register
Comment

Notice: To protect the legitimate rights and interests of you, the community, and third parties, do not release content that may bring legal risks to all parties, including but are not limited to the following:
  • Politically sensitive content
  • Content concerning pornography, gambling, and drug abuse
  • Content that may disclose or infringe upon others ' commercial secrets, intellectual properties, including trade marks, copyrights, and patents, and personal privacy
Do not share your account and password with others. All operations performed using your account will be regarded as your own actions and all consequences arising therefrom will be borne by you. For details, see " User Agreement."

My Followers

Login and enjoy all the member benefits

Login
Huawei Website Support About Huawei Privacy User Agreement Terms of Use Cookies Cookie Settings
Huawei Enterprise Huawei Carrier Forum Training & Certification

Contact Us: e_online@huawei.com Copyright © 2022 Huawei Technologies Co., Ltd. All rights reserved.

APP

Block
Are you sure to block this user?
Users on your blacklist cannot comment on your post,cannot mention you, cannot send you private messages.
Reminder
Please bind your phone number to obtain invitation bonus.