In order to ensure user rate perception

the high-speed rail private network and the public network use different frequency points for independent networking. At the same time

the protection band is configured without using the high-speed rail dedicated network frequency to avoid interference and interaction with the public network. With the explosive growth of network capacity

frequency resources in the protection band are limited and the network load situation is severe. So

the public and private network collaboration technology is adopted to solve this problem. According to the instantaneous large number of handovers

the high-speed rail entry and exit are judged. Through X2 communication

the private network and the public network decide whether to schedule the corresponding resource block resources

so as to achieve dynamic bandwidth adjustment and spectrum sharing.