Patent ID: 9722688
Date: 2017-08-01
CPC Classifications: H04B,H04L,H04W

Claim:
1. A wireless transmission system, comprising: a base station, a plurality of relay stations, and a plurality of terminals as wireless stations, the terminals and the relay stations being wirelessly connected to the base station or the relay stations at multiple stages, wherein: the base station and the relay stations are synchronized, and a system cycle of the base station and a system cycle of the relay stations are the same in terms of time; one or more service periods are allocated in time division to the base station and the relay stations in the single system cycle; the base station or each of the relay stations includes means for performing polling communication with the terminal registered in own station with the use of polling in the single service period; in the polling communication, the base station or the relay station transmits a polling packet to the terminal registered in the own station, and the base station or the relay station includes means for receiving a reply signal from the terminal registered in the own station; and the base station and the relay station to which the service periods are allocated include