Using narrow-band communications technologies, increase of radio resource utilization

摘要

With the expanding volume of rapid information transmission,frequency resources become more and more valuable. How to make the best use of frequency band,to be as much as possible to increase the amount of available channels,and to increase traffic capacity,have become a focus of global wireless communications research. Communication need,is one aspect of speed and capacity. The greater the bandwidth is,the higher the rate of communication is and accordingly,the communication capacity is lower on the premise to ensure the communication speed to minimize bandwidth,into the direction of development of communication technology. At the international level,narrow-band communication technology is increasingly used,This is an example for 470MHz wireless communication devices: This band of wireless devices,primarily transceiver and radios after the 25kHz/12.5kHz extension which has been used for decades,in recent years in the implementation of the 6.25 kHz communication technology,has achieved good results. This paper describes a "narrow-band carrier" communication technology in order to fully utilize the limited radio resources and significantly reduce the possibility of interference.