Recently, China Radio and Television announced thatIt successfully completed the field verification of key technologies of 5G-A low-altitude communication private network in Shanghai.China Radio and Television stated that currently, with the explosive growth of drone applications in logistics, inspections, emergency response, and cultural tourism, economic activities are accelerating from two-dimensional ground to three-dimensional low-altitude applications.
This puts forward new requirements for communication networks: operators must transform from traditional terrestrial communication-oriented networks to communication networks that coordinate space and ground.
In order to meet the needs of low-altitude services for high reliability, high security and high-performance networks, China Radio and Television has proposed a 4.9GHz low-altitude communication private network solution with "dedicated frequency, private network, dedicated" as the core.
China Radio and Television 4.9GHz frequency band 128TRx wide opening angle base station
It is understood that this test is based on the 4.9GHz frequency band of China Radio and Television, allowing the drone to stay on a low-altitude private network throughout the entire process.The measured uplink rate is as high as over 200Mbps, and the cell edge rate is also over 25Mbps, which can meet various business communication needs such as 4K ultra-high definition video backhaul.
The test used the independent carrier of the 4.9GHz 128TRx AAU module to air-to-air. In a multi-base station concatenated networking scenario, through technologies such as handover coordination and interference coordination, it successfully solved the problems of fragmented coverage and frequent handovers faced by low-altitude communications, allowing the drone to stay on the 4.9GHz low-altitude private network throughout the entire process.
According to reports, the test also successfully verified the reliable service capabilities under multi-user targets, dynamic, and high-density low-altitude activities.
The test results show thatUsing the 4.9GHz frequency band of China Radio and Television as the carrier of the low-altitude communication private network, the ground-to-air physical isolation communication layer constructed can effectively eliminate signal interference between ground and low-altitude users and networks.
It not only improves the quality of network coverage, but also builds an independent and trustworthy secure channel for drone data return and flight control, solving the communication security issue that is a core concern of the industry.