대규모안테나 시스템에서 MIMO 통신 장치 및 방법
- 9813123 (2017.11.07)
11VI1100, 스마트 모바일 서비스를 위한 B4G 이동통신 기술 개발,
- The present invention relates to a multi-input and multi-output communication method in a large-scale antenna system. An MIMO transmission method according to the present invention includes: obtaining statistical channel information on at least one terminal, dividing terminals into a plurality of classes and a plurality of groups based on the statistical channel information, wherein the groups depend on the classes; determining a group beam-forming matrix for each of the divided groups; performing a group beamforming transmission by group based on the group beam-forming matrix to obtain instantaneous channel information; and scheduling terminals based on the instantaneous channel information. Thus, it is possible to decrease the complexity in a scheduling and precoding calculation without an increase in the amount of wireless resources that are required for providing feedback for a reference signal and channel status information.
- KSP 제안 키워드
- Channel status, Group based, Large-scale antenna system, MIMO transmission, Multi-input, Multi-output, Multiple input multiple output(MIMO), One terminal, Reference signal, Statistical channel information, Status information, Wireless resources, beam-forming, distributed antenna systems(DAS), large-scale, large-scale antenna, transmission method