고용량 무선통신 시스템에서의 효율적인 자원 관리 장치 및 방법
- 8730884 (2014.05.20)
09MR7300, IEEE 802.11 VHT 초고속 무선랜 무선전송 연구,
- Provided is a method for managing resource in a high capacity wireless communication system capable of communicating with two or more users in a multi-input multi-output (MIMO) scheme when a base station transmits data. The includes: transmitting a MU-MIMO request-to-send (RTS) message to stations intending to transmit data in the MIMO scheme, and sequentially receiving a clear-to-send (CTS) message from stations intending to receive the data; transmitting a transmission ACK message to the stations, wherein the transmission ACK message includes information which prevents data collision during a time of data transmission to the stations and ACK signal; and configuring data to be transmitted to the stations into aggregated packets (A-MPDUs), transmitting the A-MPDUs to the stations in the MIMO scheme, and receiving a block ACK message from the stations.
- KSP 제안 키워드
- Block ACK, Communication system, Data collision, Data transmission, High-capacity, MIMO scheme, Multi-input, Multi-output, Multiple input multiple output(MIMO), Multiuser Multiple-Input Multiple-Output(MU-MIMO), Wireless communication system, base station(BS), wireless communication