1. TSG RAN WG4 meeting #74bis Rio de Janeiro, Brazil, April 20-24, 2015
MIMO OTA Way Forward
Intel Corporation, []

2. 1. General/Scope Decision on SIR control (alt)
A call for papers on operators’ views on SIR control in the MIMO OTA specification was requested for this meeting, and no papers were received
An adhoc discussion on this topic resulted in no consensus to include SIR control, although it is known that two operators have stated their position in the affirmative
As a working assumption, a potential SIR control definition is deferred to a later stage after the harmonization process concludes

3. 2. Harmonization testing campaign
The harmonization test plan in R has been approved
A number of proposals on participating test labs have been discussed, and it has been proposed to hold an offline conference call prior to RAN4 #75 (date and time TBD)
Data templates for submission of raw data per methodology are requested from the respective test solution providers for review during the offline call
An investigation into antenna topologies of the proposed devices in the test plan is requested to be performed by Motorola Mobility and prepared for review during the offline call
Logistics, such as procuring devices and handling shipping to test lab(s) will be defined during the offline call

4. 3. Proposed offline call agenda
Review proposals on participating test lab(s) and reach a decision
Review methodology raw data templates and agree on formats
Review investigation into antenna topologies of the proposed devices and finalize the device list to be used in the testing campaign
Agree on logistics aspects, such as procuring devices and handling shipping to test lab(s)

5. 4. MU Working Assumption for Harmonization
The following working assumptions on MU bounds per methodology are proposed:
RC : [TBD]
RC+CE: [TBD]
Two-Stage: [TBD]
MPAC: [TBD]

6. 5. Measurement uncertainty
Contributions are requested from the test solution providers to define MU elements with a view toward developing the MU budget for each methodology

7. 6. Topics for RAN4 #75 General Harmonization Measurement uncertainty
Potential analysis of initial results
Measurement uncertainty
Development of MU elements and MU budget per methodology