South Korean Government to Work on Interference Limitation Between PS-LTE, LTE-R and LTE-M

The South Korean Government announced that it is going to come up with solutions that will eliminate interference between PS-LTE (Public Safety LTE), LTE-R (LTE-Railroad), and LTE-M (Maritime). It is going to maximize the safety of each network by sharing the blueprints of these networks and applying latest technologies such as LAN sharing. It is confirmed that Ministry of the Interior and Safety (MOIS), Ministry of Oceans and Fisheries (MOF), and Ministry of Land, Infrastructure and Transport (MOLIT) formed a “joint public networks committee and agreed on applying safety technology and sharing the blueprints of networks. Although PS-LTE, LTE-R, and LTE-M has its own purpose, they all use same 700MHz band (20MHz width) which has brought up a possibility of interference continuously. When LTE-R is constructed along railroads near an area where PS-LTE, which is used by the police and firefighters, is constructed, interference can occur causing both networks to be unavailable. As a result, MOIS suggested forming a committee between departments and induced an agreement. The committee agreed on specifics such as evasion of LTE-R, application of LAN sharing, and formation of a working discussion system under the same consensus that people’s lives are a top priority.

MOLIT will first construct LTE-R along railroads while MOIS and MOF will construct PS-LTE and LTE-M separated from LTE-R. To do this, they are going to share blueprints of these networks and look to avoid interference by physically separating base stations or adjusting the angles of antennas.

http://english.etnews.com/20200217200002