NTT DoCoMo, Inc. announced today that it has succeeded with the 100Mbps-downlink and 20Mbps-uplink transmission experiment under an indoor environment using an experimental system for fourth-generation (4G) mobile communications.
Since April, 1998, DoCoMo has been conducting research on 4G mobile communications. In the course of this research, DoCoMo has conducted indoor trials on an experimental system that incorporates base station and mobile station equipment to evaluate key technologies in 4G packet wireless access and demonstrate its benefit by employing the implemented experimental system.
4G mobile communications system offering high-speed transmission of large-capacity data with wide coverage requires a bandwidth of approximately 100 MHz. When using a channel with such a broad bandwidth, transmission quality required can be impaired by a large number of multipaths, that is, the occurrence of secondary signals reflected off buildings, mountains and other surrounding objects.
Source:PPcnewswire
—–
Recent Comments