Study on LTE DL 8Rx antenna ports
The study item should fulfil the following objectives:
- Evaluation of PDSCH demodulation performance with 8Rx for the transmission with rank lower than or equal to 4
- Identify the scenarios for the evaluations
- Identify the necessary parameters including MCS, rank (≤4), antenna configuration and MIMO channel correlation, and propagation conditions
- Minimize the evaluation case numbers as much as possible
- Run link level simulations, and compare 8Rx performance with 4Rx under the identified scenarios to investigate the performance gain
- Use MMSE-IRC as the reference receiver
- Evaluation of PDSCH demodulation performance with 8Rx for the transmissions with rank higher than 4
- Identify the scenarios for the evaluations
- Identify the necessary parameters including MCS, rank (>4), antenna configuration and MIMO channel correlation, and propagation conditions
- Minimize the evaluation case numbers as much as possible
- Run link level simulations, and investigate the operating SNR for higher layer transmission
- Use MMSE-IRC as the reference receiver
- Evaluation of PCFICH/PDCCH demodulation performance with 8Rx
- Identify the scenarios for the evaluations
- Identify the necessary parameters including CCE levels, antenna configuration and MIMO channel correlation, and propagation conditions
- Minimize the evaluation case numbers as much as possible
- Run link level simulations, and compare 8Rx performance with 4Rx performance under the identified scenarios to investigate the performance gain
- Use MMSE as the reference receiver
- Based on the above evaluation results, identify the UE RF, RRM and UE performance requirements, which will be specified.
- Identify the scope and objectives of UE RF requirements for 8Rx
- Decide the supported LTE bands for 8Rx
- Identify the scope and objectives of RRM core requirements for 8Rx
- Identify the scope and objectives of RRM performance requirements for 8Rx
- Identify the scope and objectives of UE performance requirements for 8Rx
- UE demodulation requirements
- CSI requirements