Ericsson LTE - Simultaneous Intra-band and Inter-band Carrier Aggregation Configuration

4G LTE
1

Hi everyone,

I’m working on configuring Carrier Aggregation on an Ericsson LTE network and have a specific scenario I’d like to implement. I would appreciate any insights or confirmation from those who have experience with similar setups.

Current Working Configuration:

  • PCell: L1800, Band 3, EARFCN 1600

  • SCells:

    • L2100, Band 1, EARFCN 200

    • L900, Band 8, EARFCN 3750

This inter-band CA (Band 3 + Band 1 + Band 8) is currently active and functioning correctly.

Desired Configuration:

I want to add a new L1800 carrier (Band 3, EARFCN 1350) to the same site and aggregate it with the existing setup. The goal is to have the PCell aggregate with both:

  1. Intra-band CA: The new L1800 carrier (EARFCN 1350) on the same Band 3 as the PCell.

  2. Inter-band CA: The existing L2100 (Band 1) and L900 (Band 8) carriers.

The Core Question:

Is it possible in Ericsson LTE to have a PCell simultaneously engaged in both intra-band (non-contiguous) and inter-band Carrier Aggregation?

In other words, can a UE be connected with a configuration where the PCell (EARFCN 1600) has three SCells:

  • SCell 1 (Intra-band): EARFCN 1350 (Band 3)

  • SCell 2 (Inter-band): EARFCN 200 (Band 1)

  • SCell 3 (Inter-band): EARFCN 3750 (Band 8)

I’m particularly interested in:

  • Any known hardware or software limitations on Ericsson equipment for this.

  • If this is a standard 3GPP band combination (CA_3C-1A-8A?).

  • Any specific feature licenses or parameter settings in Ericsson systems that are crucial for this multi-band, multi-carrier scenario.

Thanks in advance for your help