WIRELESS COMMUNICATION METHOD AND WIRELESS COMMUNICATION SYSTEM

摘要

In a wireless communication system based on a time division multiple access method such as cordless telephone systems including a door camera, voice communication is performed in a bi-directional communication by using a paired time slots, and image communication is performed in a uni-directional communication by using both of paired time slots. One of the paired time slots may be used for transmitting a control signal such as an image data resend control signal.

主权项

1. A wireless communication method for performing a wireless communication between a master device and a slave device via a wireless link based on a time division method using a plurality of time slots defined along a time axis for each time frame and consisting of a first slot group and a second slot group, each slot in the second slot group being paired to a different one of the slots in the first group, comprising:
a bi-directional communication where data is transmitted from the master device to the slave device by using a part of the slots of the first slot group and from the slave device to the master device by using a part of the slots of the second slot group; and a uni-directional communication where data is transmitted from one of the master device and the slave device to the other by using a remaining part of the slots of the first slot group and a remaining part of the slots of the second slot group; wherein a data resend signal is transmitted from one of the master device and the slave device for controlling a resending of data transmitted in the uni-directional communication by using at least one slot selected from the first and second slot groups used for the bi-directional communication.