Communication system

Abstract

It is possible to provide smooth communication between a PoC system as a semi-double communication system and a general telephone as a full-double communication system by solving the difference between the basic communication concepts. The communication is realized by a communication system including: a communication control device for performing conversion between a communication control signal applied in a telephone network and a communication control signal applied in the PoC system; and a voice signal processing device for performing conversion between the full-double voice signal applied in the telephone network and the semi-double voice signal applied in the Poc system.

Description

technical field [0001] The present invention relates to a communication system that combines a half-duplex communication system capable of broadcasting (hereinafter referred to as a PoC system) provided in a portable telephone network with a full-duplex communication system such as a general telephone network or an enterprise internal telephone network. The connected telephone sets and terminal devices dedicated to the PoC system are connected to each other, and half-duplex communication is provided. Background technique [0002] With the widespread use of the PoC (Push-To-Talk over Cellular) system, there is a demand for a telephone connected to an existing general telephone network or an internal telephone network of an enterprise. The machine communicates with the PoC joiner. [0003] However, in responding to these needs, there is a problem that it is necessary to solve the problem of controlling the speaker's right to speak, which is a characteristic of half-duplex com...

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Problems solved by technology

[0003] However, in responding to these needs, there is a problem that it is necessary to solve the problem of controlling the speaker's right to speak, which is a characteristic of half-duplex communication, between the PoC system which is a half-duplex communication system and the general telephone which is a full-duplex communication system. , the characteristics of half-duplex communication, the processing of voice data that can be broadcast, and the method of dialing a PoC group from a general telephone, etc., to provide smooth communication.

[0004] The first problem is that there is no method of expressing the speaking right of a talker utilizing full-duplex communication in the case of providing smooth communication between a half-duplex communication system and a full-duplex communication system

The reason is that in the case of full-duplex, there is no concept of floor control required by the original half-duplex communication system.

[0005] The second problem is that there is a difference in the call control method when the PoC system is connected to a full-duplex communication system such as a general telephone network or an internal telephone network of an enterprise.

The reason for this is that since the PoC system is a half-duplex communication system capable of broadcasting announcements, there is no call processing (RINGING) performed in a normal telephone system.

[0006] The third problem is that when a PoC group is called from a full-duplex communication system such as a general telephone network or an internal telephone network, the unit of the group is not specified.

However, in these literatures, there is no mention of how to deal with PoC systems

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