Dianxin kexue (Jun 2022)
An approach of LTE measurement report based 2.1 GHz and 3.5 GHz 5G SA coverage evaluation
Abstract
2.1 GHz refarming is a key issue for the evolution of 5G network.Limitations of network simulation were analyzed.Since most of 5G sites were co-sited with LTE and adopted the same or similar engineering parameters, an approach of 2.1 GHz and 3.5 GHz 5G SA network coverage evaluation was proposed.A co-site coverage differential model between 2.1 GHz and 3.5 GHz 5G SA was given and its accuracy was verified by field trial.Then the coverage of two frequencies were predicted based on LTE MR, the differential model and the uplink rate curve relative to link loss.The evaluation instance indicates only 1.3～5.2 pp coverage gain is achieved at uplink rate between 1 Mbit/s and 10 Mbit/s by refarming 2.1 GHz within 20 MHz bandwidth, because of the 10 dB margin of LTE coverage.
