Re: [EToSat] New Version Notification for draft-lhan-problems-requirements-satellite-net-02.txt

[Meiling Chen <[e-mail]>]

Hi Wesley,

3GPP has regarded satellite network as 5G NG-RAN infrastructure, Network Operators need and want to be able to use satellite networks to provide services, the owner of satellite network should use the technology provided by IETF instead of private technology which is used currently. To develop, we need to change the stateof privatization. From the perspective of economy, satellite networks will be shared in the future. It is impossible for each Service Provider to send a large satellite network, sure you know that.  Therefore, the technology of satellite network should be dominated by IETF and 3GPP like the current Internet and wireless technology.

Best,
Meiling
 
From: Wesley Eddy
Date: 2022-02-26 03:04
To: etosat
Subject: Re: [EToSat] New Version Notification for draft-lhan-problems-requirements-satellite-net-02.txt
On 2/25/2022 1:26 PM, Lin Han wrote:
>>> But since in this scenario, the satellite network is treated as transport , 3GPP assumes that connectivity and routing  will be given and fully supported by the underlay transport.
 
Right, the basic IP connectivity for satellite network is not there yet even 3GPP assumes it in the architecture for satellite-based NG-RAN. Without IP connectivity, all 3GPP interfaces NG/Xn/F1/F2 will not work.
The issue is not that simple as few people assumed. We cannot use current routing or SDN solution to massive satellite constellation directly. Lots challenges and reworks are expected. The mobility of satellite network is unprecedented compared with the mobile scenarios in MIP, PMIP, DMM, etc. Basically, the difference is “infrastructure moving” vs “end device moving”.
So, IETF should work to provide technologies and solutions.
 

Unless constellation operators or vendors are asking for some new standard or interoperability spec for this, then I don't think this is valuable to pursue.  Who exactly wants it?
IMHO, the things you mention are understood and designed around already.