Limiting Tilts in Huawei to Address ICNIRP Concerns

Hello Experts.

Anyone here knows a way of limiting tilts in Huawei?

For this use case there’s ICNIRP concerns that would be overcome if we could restrict the tilts from the available range of [0 ~ 10 deg] to a range of [0 ~ 6 deg].
I know that in Ericsson there’s a way to limit tilts, but can’t seem to find something similar on Huawei.
The RETDEVICEDATA shows both MAX and MIN tilts, but that is read-only, as part of the RET config file applied to it.

Any ideas?

I know there are two types of tilts:

  1. The mechanical tilt
  2. The electric tilt

The mechanic tilt takes a unique value. We find the value with a cursor depending of the antenna height.

The electric tilt permit to modify the antenna tilt using RET (Remote Electrical Tilt) cable.

In my studies, I have not found the command to restrict the tilt in a interval.

But I was informed that in Huawei they can restrict the tilt (using RET cable) only to a unique value not an interval.

Maybe an expert can give us another point of view.

You are doing LST RETDEVICEDATA.

Use MOD RETDEVICEDATA to change it.

One way of checking the e tilt is within ICNIRP compliance is to have a regular dump of RET ET values from the OSS and establish a check mechanism to flag when the value is changed for any reason I.e optimisation.

If there is any database or planning tool is used to record the ET values of cells advisory comments about limitations of tilt change can also be added for wider awareness for performance and planning engineers.

Yeah:… but the goal here was to limit ET directly on the RET. Having to rely on audits to parse RET labels (prone to human error/ typo) to match it against a certain live cell, to then determine if a particular antenna would s working outside of the permitted tilt range and finally act on getting it corrected…… it would be a lot simpler if you could limit its range from the get-go.

Other people commenting on mechanical vs. Electrical tilt, I’m referring to electrical tilt only.

And in regards to LST / MOD command, that’s not what I was looking for.
I know how to change RET tilt. That’s not the issue.
Finally, regarding RETDEVICEDATA MO, it does have a Min and a Max tilt allowed, but it seems to be real-only data, gathered from the RET config file (bin). But I’ll have another look at that on Monday.