Digital wireless intercom system and driving method thereof

Abstract

The present invention provides a digital wireless intercom system comprising: at least one master base station; at least one remote base station which is connected to the at least one master base station by wire using at least one of LAN, LAN infrastructure network or the Internet, and transceives a synchronization signal and a digital data signal; a plurality of first mobile stations which are positioned within a transmission range of the at least one master base station and wirelessly transceives the synchronization signal and data signal; ; and a plurality of second mobile stations which are positioned within a transmission range of the at least one remote base station and wirelessly transceives the synchronization signal and data signal, wherein the at least one master base station and at least one remote base station are operated at different independent frequencies in consideration of frequency interference, and the synchronization signal and data signal transceived by the at least one master base station and at least one remote base station have different starting points of different cycles.

Description

Technical field [0001] The present invention relates to a digital wireless mutual communication system, in particular to a digital wireless mutual communication system including a main base station (MBS) and at least one remote base station (RBS) and a driving method for the digital wireless mutual communication system, wherein the MBS and At least one RBS performs wired communication with each other and performs wireless communication with at least one belt pack (BP) in an independent synchronization state. Background technique [0002] In recent years, as a digital wireless intercommunication system that uses the very high frequency (VHF) band and the ultra-high frequency (UHF) band to compensate for the shortcomings of analog wireless intercommunication systems, about 900MHz / 2.4 Digital wireless intercommunication systems in the Scientific and Medical (ISM) band of GHz and the unlicensed National Information Infrastructure (UNII) band of about 5 GHz have been extensively devel...

AI Technical Summary

Problems solved by technology

[0005] Regardless of these advantages, the disadvantages of digital wireless intercommunication systems are: the distance of wireless communication is shorter compared with analog wireless intercommunication systems using VHF and UHF bands

As a result, the digital wireless intercommunication system using the ISM band and the UNII band has a disadvantage that the optimum frequency band with relatively low interference cannot always use the same frequency depending on the service area and service time

[0017] Due to the need for additional equipment to extend the distance of wireless communication, the installation cost and maintenance cost are increased, and the usability and promotion are limited

[0018] Furthermore, even in the case where the digital wireless intercommunication system 10 according to the prior art is connected to the Internet, an additional signal conversion unit is required

[0019] Although the digital wireless intercommunication system according to the prior art has advantages such as high sound quality by high data transmission speed and multiple audio channels by the time division method, the digital wireless intercommunication system according to the prior art has Disadvantages such as short distance and frequency interference of wireless communication

As a result, application of the digital wireless intercommunication system according to the prior art to high-priced broadcasting systems is limited, and there is a serious obstacle to general application of the digital wireless intercommunication system according to the prior art to buildings such as restaurants and the like

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