For NSA it is needed.
Yes but I was talking about SA.
I said that UE needs to have this capability in any case: "nr-CGI-Reporting-ENDC
Defines whether the UE supports acquisition of relevant information from a neighbouring intra-frequency or inter-frequency NR cell by reading the SI of the neighbouring cell and reporting the acquired information to the network as specified in TS 38.331 [9] when the EN-DC is configured.:"
Do you know a 5G UE that has this capability?
Same applies to SA:
More details about UE capability here:
I got your point.
In SA, CGI acquisition required for NR to NR ANR purpose. Right?
In version 19B complying with 3GPP f40 specifications, SIB1 is broadcast in NSA networking for automatic neighbor relation (ANR) measurements. However, most commercial UEs currently do not support ANR measurements. Therefore, SIB1 broadcast can be disabled in NSA networking to save RB resources.
Samsung have speacial proprietary feature for ANR called as EMS based ANR.
Without reading SIB 1 EMS can identify NBR based on PCI.
How is the procedure?
EMS have all the network databse.
Distance from source cell is one of the factor while identifying nbr.
UE report undefined PCI, gnb not ask UE to read CGI but gnb will report to EMS, EMS lookup its database the nearby sites having PCI reported?
Yes roughly correct.
But I think it’s not correct as CGI reading.
And if any UE supporting NCGI reporting, then CDRX will be configured and normal ANR operarion is done.
There is no other option, right?
Because EMS database not sure 100% correct.