Open-loop spatial multiplexing does not require PMI feedback.
The drive test scenario judges the success of the handover, usually based on the signaling. On the terminal side, which of the following signaling starts the handover process?
In the mobile communication system, what are the commonly used interference suppression methods? (multiple choice)
Which of the following adjustment measures has the highest priority?
Which of the following factors affect the theoretical peak of LTE cells? (multiple choice)
Which of the following events is the basis for LTE synchronous frequency switching?
Which of the following results can be reported in the Measurement Report? (Multiple choice)
In the case of FTP download or upload (or packet filling) without manual intervention, the throughput rate should be maintained at this time. If there is a sudden drop, call drops may occur.
Assuming other conditions are unchanged, if the power parameter PB is changed from 0 to 1, then which of the following statements is correct?
When doing PCI planning, what principles need to be met? (multiple choice)
Before coverage analysis, it is necessary to obtain basic data such as the planning plan, site distribution, base station configuration, antenna feeder configuration, RS power and service load characteristics of the optimized target area. Then obtain the information of the existing network data, conduct a comparative analysis, and find out the areas where the coverage problem may exist.
The LTE system requires an uplink synchronization system. Uplink synchronization is mainly to eliminate interference between different users in a cell.