Abstract:
본 출원은 업링크 물리적 채널의 적시성을 보장할 수 있는 정보 전송의 방법, 장치, 기기 및 컴퓨터 판독 가능 저장 매체를 개시하며, 그 중에서, 상기 방법은: 타임 슬롯에 다수의 업링크 물리적 채널이 있는 경우, 상기 다수의 업링크 물리적 채널에 의해 운반되는 정보를 하나 이상의 제1 업링크 물리적 채널에 다중화하며; 상기 하나 이상의 제1 업링크 물리적 채널의 종료 위치가 제한 조건을 충족하는 것으로 판단하는 경우, 상기 하나 이상의 제1 업링크 물리적 채널을 통해 상기 정보를 전송하는 것을 포함한다.
Abstract:
In a system in which a host (AP) and a plurality of terminals (UT1 to UTu) simultaneously communicate with each other under the SDMA scheme, transmission parameters to be used for generating frames (202-1 to 202-u) for SDMA transmission to the respective terminals are adjusted in consideration of the transmission time durations necessary for transmission of other frames to be transmitted simultaneously with the first-mentioned frames, so that differences between the frame transmission time durations are reduced.
Abstract:
PROBLEM TO BE SOLVED: To solve the problem that a loss-of-signal caused by the switching of a modulation system using an adaptive modulation system occurs. SOLUTION: Radio transmission devices (10a, 10b) having an automatic transmission power control function of controlling the transmission power of the own station such that the received power of the counter station is maintained at a preset constant value and a function of the adaptive modulation system, which automatically switches over the modulation system according to the quality of a radio transmission path, include modulation system determining circuits (14a, 14b) for switching over the modulation system using the adaptive modulation system in consideration of the allowance which is the difference between the maximum transmission power received from the counter station and the current transmission power, and the transmission power detected by the own station. COPYRIGHT: (C)2009,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To prevent image quality from being deteriorated, in particular, in high-definition video transmission by effectively utilizing communication bands of a plurality of transmission channels. SOLUTION: A transmitting terminal periodically sends a packet for error rate measurement to all transmission channels and all transmission lines and measures an error rate. Contents to be transmitted are classified and a transmission channel of best transmission quality is assigned to contents which require real-time property and have a wide transmission band. Further, a required communication protocol is selected in accordance with a kind of contents and processing thereof is performed. Moreover, bands are assigned to contents of wide transmission band at a peak rate of transmission bands, and bands are assigned to contents of narrow transmission bands at an average rate of transmission bands. COPYRIGHT: (C)2007,JPO&INPIT