KR102140683B1 - Wireless integrated solution LTE terminal and page phone interlocking broadcasting and call system - Google Patents

Abstract

The present invention relates to a wireless integrated solution LTE terminal and page phone interlocking broadcasting and calling system. The system comprises a page phone main device (100), a public safety LTE (PSLTE) (200), a base station (300), a high power combiner (400), an AP built-in frequency combiner (a Wi-Fi combiner) (500), an integrated control room (600), a plurality of integrated antennas (810, 820, 830, 840), and a plurality of distributors (710, 720, 730). According to the present invention, a main device of a page phone connected to multiple pieces of broadcasting equipment or page phones is interlocked with a public safety LTE (PS-LTE) and public safety LTE network (SIP) to provide broadcasting and calling services.

Description

Wireless integrated solution LTE terminal and page phone interlocking broadcasting and call system

The present invention relates to a page phone interlocking type broadcasting and call system, and more specifically, a wireless integrated solution LTE terminal and a page interworking with the main device of the page phone and public safety LTE (PS-LTE) and public safety LTE network (SIP). It relates to a phone-linked broadcasting and call system.

In general, a page phone is a kind of industrial driving instruction broadcasting facility used by drivers in railways, subways, power generation facilities, ships, factories, and construction sites, and calls and communication between people working in factories or work sites It is used as a communication means for, and is a device that calls a specific person through a speaker and then calls between the caller and the called party using a handset or mobile terminal.

1 is a block diagram of a conventional page phone system.

The conventional page phone system, as shown in Figure 1, a plurality of line test units (31,32) and a plurality of page phones (40-1,...,40-n) (40-n+1,. RS-232 communication of the communication line L1 between the central management unit 10 centrally managing the state of .., 40-n+N) and the central management unit 10 and the line test units 31 and 32 A multi-repeater 20 that cross-converts the RS-485 communication of the communication line L2, a plurality of page phones and a plurality of analog lines n of the page phones and a plurality of terminals serving as a terminal board connecting them Line test unit (31,32), and a plurality of analog-type page phones (40-1,...,40-n) (40-n+1,...,40) connected to the line (n) -n+N).

Here, the 50 is composed of a tabletop page phone, which is the same as the page phone 40-1,.. However, the table top is installed in an office where the broadcast volume may be small.

In the conventional page phone system configured as described above, when a command button is pressed on an arbitrary page phone and command broadcasting is performed through a handset, an analog signal processed voice signal is transmitted through the line n.

The voice signal transmitted from the arbitrary page phone is transmitted to all other page phones through the line (n) or the line (n) and the line test units (31, 32), and all the page phones receive this voice signal Output through the internal amplification circuit.

In addition, through the command broadcast, after calling an arbitrary receiver to an arbitrary call channel, both page phones press a call channel button (for example, 1 out of 5) to talk to each other.

In the conventional page phone system operated in this way, since the page phone is an analog type, since the page phone equipment and the line are both analog-type voice signals, a distance limitation (for example: within 2 km) occurs.

In addition, since the analog type is used, all necessary signals, that is, 2 signal channels (2 pairs-4 lines), 5 communication signals (5 pairs-10 lines), 1 control signal (1 pair-2 lines), and power line As the number of cables (3 lines) is required (19 lines), a lot of construction cost is required and installation is complicated.

On the other hand, the analog type page phone is composed of a plurality of analog elements (parts) such as a transformer, an OP-AMP, and a relay, and thus has a problem of increasing volume and weight.

In addition, the conventional page phone system has a large power loss by using an analog method and has a limitation in output of a power amplifier.

Recently, based on LTE, a public safety LTE network (PS-LTE network) has been established to provide communication services to users related to public safety, such as police, firefighters, soldiers, policemen, emergency medical personnel, and local governments. Doing. PS-LTE stands for National Disaster Safety Network.

In other words, for large-scale disasters such as fire, flood, earthquake, and tsunami, PS-LTE wireless communication network suitable for disaster-related organizations is used as a disaster-response wireless communication technology for LTE, the fourth-generation mobile communication standard, for fast and efficient disaster management at the national level. It is a disaster-safe wireless communication network that provides both existing PTT voice service and video/data service in a single LTE network.

This PS-LTE network solves the problem that the existing public safety communication network does not communicate between ministries according to different frequencies and technology methods, and provides a combination of existing PTT voice service and video/data service in a single packet-based LTE network. It is a disaster-safe wireless network.

The PS-LTE network has been established since 2014, and in early 2018, limited services have been provided to some parts of our country. In particular, with the recent Pyeongchang Olympics, base stations have been installed in areas such as Pyeongchang, Gangneung, and Jeongseon, and services are being piloted.

It is required to develop a system in which the main devices of the PS-LTE and the page phone broadcast and call.

Patent Literature 1: Republic of Korea Registered Patent No. 10-1809042 (Integrated system for simultaneous service of broadband public safety communication network PS-LTE and TETRA for disaster safety) Patent Document 2: Republic of Korea Patent Registration No. 10-1475904 (IP page phone system using an IP network

Therefore, the present invention is to solve all the disadvantages and problems of the prior art as described above, the main device of a page phone connected to a number of broadcast equipment or page phones Public Safety LTE (PS-LTE) and Public Safety LTE network (SIP) The purpose is to provide a wireless integrated solution LTE terminal and a page phone-linked broadcasting and calling system capable of providing broadcasting and calling services interlocked with ).

In order to achieve the above object, the present invention communicates with the other party through a plurality of page phones (101, 102, 103) by holding a handset as a terminal device for a call and pressing a command button, and a plurality of speakers (104, 105, 106), but the page phone main device 100 is electrically connected to a plurality of other page phones (101, 102, 103) and a plurality of speakers (104, 105, 106); As a LTE (Long Term Evolution) based national disaster safety wireless communication network, a SIP (Session Initiation Protocol) is built in to support communication by the SIP between the page phone main unit 100 and the page phones (101, 102, 103). Public Safety LTE (PS-LTE) 200; A base station 300 that transmits and receives the PS-LTE 200 by processing a downlink frequency of 773 to 783 MHz and an uplink frequency of 718 to 728 MHz; A high power combiner 400 that serves frequencies of the LTE band (700 MHz) and the fifth generation (5G) band (3.5 GHz) to the base station 300; Combines the LTE band (700MHz), the frequency of the 5G (3.5GHz) band and the frequency of the WiFi band to communicate with the high-power combiner 400, and is equipped with a LAN Port function ) AP built-in frequency combiner (Wi-Fi combiner) ) 500; An integrated control room 600 that periodically checks the status of the frequency combiner 500 and checks or replaces the status of the frequency combiner 500 through an administrator when an abnormality occurs; And LTE (radio, 911) applied to PS (Public Safety)-LTE capable of wireless communication, and smartphones (920, 921) and helmets, helmets worn by workers for work on site, camera and voice call functions Equipped with and supports communication with LTE terminals including one or more of LTE or Wi-Fi interlockable smart helmets (930, 931), LTE frequency band 700MHz, Wi-Fi frequency band 2.4GHz and 5GHz band, A plurality of integrated antennas (810, 820, 830, 840) for transmitting and receiving processing of frequencies in the 3.5 GHz band, which is the 5th generation (5G) frequency band, and a plurality of dividers (710) for distributing frequencies transmitted and received between the frequency combiners (500) , 720, 730); and provides a wireless integrated solution LTE terminal and pagephone-linked broadcasting and calling system, characterized in that it supports broadcasting and calling by interworking with an LTE terminal and a page phone.

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According to the present invention, a wireless integrated solution LTE capable of providing broadcast and call services by interworking a plurality of broadcast equipment or a page phone connected to a page phone through PS-LTE (Public Safety LTE) and SIP (Public Safety LTE network). It can provide a terminal and a page phone-linked broadcasting and calling system.

1 is a block diagram of a page phone system in the prior art.
2 is a view showing an embodiment of a wireless integrated solution LTE terminal and a page phone-linked broadcasting and calling system according to the present invention.

If described in detail by the accompanying drawings, preferred embodiments of the present invention.

In addition, the terminology used in the present invention has been selected as a general terminology that is currently widely used as much as possible, but in certain cases, the term is arbitrarily selected by the applicant, and in this case, its meaning is described in detail in the description of the applicable invention. It is intended to clarify that the present invention should be grasped as a meaning of a term rather than a name of. In addition, in describing the embodiments, descriptions of technical contents well known in the technical field to which the present invention pertains and which are not directly related to the present invention will be omitted. This is to more clearly communicate the subject matter of the present invention by omitting unnecessary description.

2 is a view showing an embodiment of a wireless integrated solution LTE terminal and a page phone-linked broadcasting and calling system according to the present invention.

As shown in FIG. 2, an embodiment of a wired/wireless integrated system equipped with a broadband antenna unit for a wired/wireless integrated system according to the present invention includes a page phone main device 100, a plurality of page phones 101, 102, 103, and a plurality of speakers. (104, 105, 106), PS-LTE (200), base station (300), high power combiner (400), frequency combiner (500), integrated control room (600), multiple distributors (710, 720, 730) and multiple It consists of an integrated antenna (810, 820, 830, 840).

Here, the page phone main device 100 is a terminal device for a call, by holding the handset and pressing a command button, calls to the other side for communication with the other party through a plurality of page phones 101, 102, 103, and presses the call button to mutually It is a device that calls and commands through a plurality of speakers 104, 105, and 106. To this end, the page phone 100 shows that other page phones 101, 102, and 103 are electrically connected to a plurality of speakers 104, 105, and 106.

PS-LTE 200 is an LTE-based national disaster safety wireless communication network. As described above, the PS-LTE 200 provides a wireless communication network suitable for disaster-related organizations to LTE, the fourth-generation mobile communication standard, for rapid and efficient disaster management at the national level in the event of a large-scale disaster such as fire, flood, earthquake, and tsunami. It is a disaster-safe wireless communication network (survival, trust, disaster response, security, operation, efficiency) that provides both existing PTT voice service and video/data service in a single packet-based LTE network.

For reference, LTE (Long Term Evolution) is a 4G (4G) wireless communication technology developed by the 3GPP consortium. However, since 5G (5G) mobile communication technology is spreading recently, support for this is also necessary, and in addition, it is necessary to incorporate Wi-FI technology.

LTE refers to the field of wireless technology, and according to standardized terms, the wireless access technology referring to the air interface is E-UTRA (evolved Universal Terrestrial Radio Access), and the wireless network including the wireless network node and the wireless access technology is E-UTRAN. (Evolved Universal Terrestrial Radio Access Network), and the core network symmetric with the wireless network is an enhanced packet core (EPC). And the entire system consisting of EPC and E-UTRAN is called an enhanced packet system (EPS).

Meanwhile, in the present invention, a Session Initiation Protocol (SIP) is built into the PS-LTE 200. Here, SIP is a VoIP-related standard, and IETF signaling protocol (IETF SIP) corresponding to ITU-T H.323 is very simple compared to H.323 and has a feature of simple call setup.

If H.323 was a standard for communication with Internet phones, that is, page phones (101, 102, 103) in the past, in the present invention, communication by SIP between the page phone main device 100 and the PS-LTE 200 is supported. When communicating with the page phones (101, 102, 103), communication by SIP is supported. The SIP has an advantage of easy parsing and compiling and easy to expand and implement.

The base station 300 is divided into a digital unit (Digital Unit, hereinafter referred to as DU) and a radio unit (Radio Unit, hereinafter referred to as RU), respectively, the digital signal processing unit and the radio signal processing unit that are integrally implemented in the base station. The RU handles the downlink frequency of 773~783MHz and the uplink frequency of 718~728MHz.

The high-power combiner 400 serves LTE (4G) band (700MHz) and 5G band (3.5GHz) frequencies. That is, in general, in a system using a radio frequency (radio frequency), a coupler having a structure in which several types of input signals are connected and transmitted as a single signal is frequently used. The variables that determine the characteristics of the power combiner/divider must have excellent isolation characteristics between each output port (or between input ports), and the RF signal size between each output port is 1/N times (divider) ) Or N times (in the case of a linker). Also, in the case of a splitter, the phases between the ports must be identical. In particular, combiners and dividers have a variety of uses in applications using RF amplifiers.

The frequency combiner 500 combines the frequencies of the LTE band (700MHz) and the 5G band (3.5GHz) as well as the frequencies of the 2.4GHz and 5GHz band Wi-Fi bands, and is equipped with a LAN Port function.

The integrated control room 600 periodically receives the status of the frequency combiner 500 from the status detecting system program board 530 of the frequency combiner 500 and checks the status of the frequency combiner 500 through the manager when an abnormality occurs. Or replace it.

The plurality of splitters 710, 720, and 730 distribute frequencies transmitted and received between the plurality of integrated antennas 810, 820, 830, and 840 and the frequency combiner 500.

A plurality of integrated antennas (810, 820, 830, 840) LTE frequency band 700MHz, Wi-Fi frequency band 2.4GHz and 5GHz band, the fifth-generation (5G) frequency band 3.5GHz band frequency transmission and reception processing LTE Terminals, for example, to communicate with wireless communication terminals such as walkie-talkie (910, 911), smart phones (920, 921) and smart helmets (930, 931).

For reference, the radios 910 and 911 are radios applied to public safety (PS)-LTEs that effectively cope with disasters and disasters by bundling radio networks that were separately operated by the police and fire departments, and are LTE radios.

For reference, the smart phones 920 and 921 are intelligent terminals that add computer support functions such as Internet communication and information retrieval to mobile phones, and are wireless portable terminals capable of installing applications desired by users.

The smart helmets 930 and 931 are helmets worn by workers, such as power plants, for work on the site, that is, devices equipped with a camera and voice communication function in a hard hat and capable of interworking with wireless communication (eg, LTE or Wi-Fi).

These smart phones and smart helmets or walkie-talkie need not be particularly limited as long as they are smart devices that support voice over wireless networks such as LTE or Wi-Fi in various embodiments.

Although the present invention has been described as an example as described above, the present invention is not necessarily limited to these examples, and may be variously modified without departing from the spirit of the present invention. Therefore, the examples disclosed in the present invention are not intended to limit the technical spirit of the present invention, but to explain, and the scope of the technical spirit of the present invention is not limited by these examples. The scope of protection of the present invention should be interpreted by the following claims, and all technical ideas within the equivalent range should be interpreted as being included in the scope of the present invention.

100: page phone main device 101, 102, 103: page phone
104, 105, 106: speaker
200: PS-LTE (EPS)
300: base station 400: high power combiner
500: frequency combiner 510: AP zone (area)
520: passive zone (area)
530: Status detection system program board (area)
600: Integrated control room 710, 720, 730: distributor
800: antenna unit 810, 820, 830, 840: integrated antenna
910, 911: walkie talkie 920, 921: smartphone
930, 931: smart helmet

Claims (2)

Holding the handset as a terminal device for the call, press the command button to talk to the other party through a plurality of page phones (101, 102, 103), and command the broadcast through the multiple speakers (104, 105, 106), A page phone main device 100 electrically connected to a plurality of page phones 101, 102, 103 and a plurality of speakers 104, 105, 106;
As a LTE (Long Term Evolution) based national disaster safety wireless communication network, a SIP (Session Initiation Protocol) is built in to support communication by the SIP between the page phone main unit 100 and the page phones (101, 102, 103). Public Safety LTE (PS-LTE) 200;
A base station 300 that transmits and receives the PS-LTE 200 by processing a downlink frequency of 773 to 783 MHz and an uplink frequency of 718 to 728 MHz;
A high power combiner 400 that serves frequencies of the LTE band (700 MHz) and the fifth generation (5G) band (3.5 GHz) to the base station 300;
Combines the LTE band (700MHz), the frequency of the 5G (3.5GHz) band and the frequency of the WiFi band to communicate with the high power combiner 400, and is equipped with a LAN port function) AP built-in frequency combiner (Wi-Fi combiner) ) 500;
An integrated control room 600 that periodically checks the status of the frequency combiner 500 and checks or replaces the status of the frequency combiner 500 through an administrator when an abnormality occurs; And
LTE (radio, 911) applied to PS (Public Safety)-LTE capable of wireless communication, and smartphones (920, 921) and a helmet and a helmet worn by workers for work on the site. Equipped and supports communication with LTE terminals including one or more of LTE or Wi-Fi interlockable smart helmets (930, 931), LTE frequency band 700MHz, Wi-Fi frequency band 2.4GHz and 5GHz band, 5 A plurality of integrated antennas (810, 820, 830, 840) for transmitting and receiving the frequency of the 3.5GHz band that is the generation (5G) frequency band,
A wireless integrated solution comprising a plurality of dividers (710, 720, 730) for distributing frequencies transmitted and received between the frequency combiners (500) to support broadcasting and calls by interworking with an LTE terminal and a page phone. LTE terminal and page phone linked broadcasting and call system.
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