2G Full Rate / Half Rate / AMR Half Rate

3G / 2G
1

Hello I have a question
As you know
We have 9 to 10
Parameters related to FR HR

In this 6 parameters
Such as
Tch traffic busy thereshold
Tch traffic busy underlaid threshold
Tch traffic busy overlay threshold
AmR TCH/H Prior cell load threshold
Threshold for OL/UL load with AMR HR preffered

OK?

It is recommended AMR parameters less than
Others even by 1

As in hedex mentioned

But it doesn’t mentioned
The reason.

Would you please tell me the reason
Why we should set Amr Hr parameters less than
Other FR/HR parameters above

2

Hi Dear Experts.
In Ericsson I increase half rate usage to 100 by changing DTHMR to 100.
But still I have full rate traffic.
It seems there is other conflict parameter which can’t slow to use half rate.
Any suggestions on what is issue?

3

Please check HALFRATESUPP.
(HALFRATESUPP: indicates wheter support for HR channels is activated or not)

RAEPP.

4

It is zero in our network.

image

5

There are 2 features which controls you HR Usage:

  • One for new connections - DHA
  • Another for ongoing connect - DYMA

There are multiple parameters with both load and quality based triggers.
You should check all of them.
Also there is Abis Triggered HR Allocation, this is part of DYMA.

6

But we don’t have DYMA active as we don’t have license in network.
With which command can I check DYMA is active or not?

7

As far as I remember it was RLDHP and RLDMP.
Better check the Elex (ex Alex) Ddocumentation.
It is very much detailed.

8

Thanks :pray:.