Higher Order MIMO Impact in LTE TDD vs FDD[Practical result TDD 2x2 to 4x4 MIMO and FDD 4x4 to 2x2 change]
Dear readers you might be wandering for what can be impact while doing changes in MIMO from 2x2 to 4x4 and vice versa Above table is very easy to understand that how MIMO chaging performance life of cell All cells Kept for 14 days in their different MIMO scenario and above table prepared in practical scenario In above table TDD MIMO gain is far-far better than FDD so dont assume higher MIMO will give good gain in FDD TDD is very well performed after 2x2 to 4x4 conversion where as FDD has some gain in Data Payload as Power /Port increased so Cell radious increased that result more subscriber and subcequent impact in payload , throughput and CQI Below is result of 15MHz TDD L2300 Carrier MIMO change from 2x2 to 4x4 Cells kept for >2WK for observation in 2x2 and 4x4 vice versa . 1. With increased capacity by 70% 2. Payload increased by 41% 3. DL User Throughout increased by 130% 4. UL User Throughout increased by 145% 5. CQI improved by 40%