KR101483604B1 - Vehicle-mounted mobile communications system - Google Patents

Abstract

The present invention relates to a mobile communication base station, and more specifically, to a mobile communication base station installed on a vehicle to provide a flexible communication service. The mobile communication base station according to an embodiment of the present invention includes: a power source supply unit; a first rack which receives power supply from a power supply unit and relays multiple communication signals from multiple signals; a second rack receives power supply from the power supply unit and provides additional communication service functions; and multiple antennas which are connected to the first rack to receive communication signals form the terminals.

Description

[0001] Vehicle-mounted mobile communications system [0002]

The present invention relates to a mobile communication base station, and more particularly, to a mobile communication base station system that implements a mobile communication base station system by integrating the previously developed communication base station equipment into a rack to be mounted on a vehicle.

Typical WiBro base station equipments are fixed-type indoor access control equipment, authentication server, operation management equipments, and wireless connection equipment and antenna are installed outdoors.

In this case, the range of the communication service may be up to 1 to 2 km in the center where the antenna is installed, but the radio wave of the base station may not reach due to a high-rise building and / or a terrain such as a building and / or a mountain.

Therefore, a wireless data service is provided by overcoming the propagation environment by installing a plurality of base stations for an area having a large residential or floating population.

However, such a fixed base station has a disadvantage in that it is difficult to secure flexibility such as changing a communication service providing area when the residential / mobile population is reduced or moved to another area in the existing service providing area.

In addition, there is a disadvantage in that, in the event of an emergency such as a disaster / disaster or terrorism, the power supply may be cut off or the facility may be destroyed and the operation as a base station may not be possible.

1. Korean Registered Patent No. 1302518 2. Japanese Laid-Open Patent No. 1998-032869 3. U.S. Published Patent No. 2012-0225681 4. Korean Patent Publication No. 2011-0088053

The present invention has been proposed in order to solve the problem according to the above background art, and it is an object of the present invention to provide a vehicle-mounted type mobile terminal capable of securing flexibility such as changing a communication service providing area when residence / And a mobile communication base station system.

It is another object of the present invention to provide a vehicle-mounted mobile communication base station system that can be operated as a base station even when an emergency occurs such as a disaster / disaster, terrorism, or the like.

In order to achieve the above-described object, the present invention provides a vehicle-mounted mobile communication base station system capable of securing flexibility such as changing a communication service providing area when residence / flow population is reduced or moved to another area in a service providing area do.

The on-board mobile communication base station system includes:

Power supply;

A first rack receiving power from the power supply unit and relaying communication signals from a plurality of terminals;

A second rack that receives power from the power supply unit and provides additional service functions such as call processing and multi-party call support for a terminal connected to a mobile communication base station system, call transfer / hold, and text message transmission; And

And a plurality of antennas connected to the first rack and receiving communication signals from the plurality of terminals.

In this case, the first rack and the second rack may be detachably attached to the housing by a sliding method.

The first rack may further include wireless connection equipment for collecting communication signals from the plurality of terminals through a wireless path; Access control equipment for transmitting the collected communication signals to the backbone; A wireless network synchronizer for performing a small relay period synchronization with the access control equipment; And operation management equipment for performing the configuration, status, performance, and performance management of the connection control equipment or the radio access equipment.

In addition, the operation management device may further include an authentication server for authenticating a user of a Diameter-based terminal.

In addition, in order to separate the antenna from the vehicle by a certain distance, the radio access equipment may be separated into a first radio access equipment having a baseband unit and a second radio access equipment having an RF transceiver unit.

The second rack may include a switching hub for transmitting data between the first rack and the second rack; An additional function control device for providing additional service functions such as multi-party call support, call transfer / hold, and text message transmission; And a call switching control device for exchanging a call between terminals connected to the mobile communication base station system.

In addition, the first rack communicates with the plurality of terminals using a WiBro network.

In addition, the small-sized repeater may be connected to the connection control equipment installed in the first rack through an optical cable.

Further, the power supply unit may be a combination of a constant power source, a vehicle generator, a separate-mounted generator, and a secondary battery.

The power supply unit may include a power distribution unit that distributes power from any one of a power source, a vehicle generator, a separate-mounted generator, and a combination of secondary batteries to the first rack or the second rack .

In addition, the plurality of antennas can be separated from the vehicle, and can be a sector antenna or an omni antenna.

In addition, the plurality of antennas and the radio access equipment (more precisely, RF transmitting and receiving units) are connected to each other through an RF (Radio Frequency) cable, and the first rack and the second rack are connected through an unshielded twisted pair (UTP) cable.

The air conditioner may further include environmental equipment connected to the power supply unit to perform cooling and heating.

According to the present invention, compared with a general fixed base station system for a WiBro network configuration, it can be mounted on a vehicle and support a WiBro communication service up to several kilometers around a vehicle or an antenna.

Another effect of the present invention is to support communication services such as call and / or data transmission between terminals connected to a mobile communication base station system even in an independent network structure not equipped with a backbone by mounting not only base station equipment but also exchange equipment Points can be mentioned.

In addition, as another effect of the present invention, a power source can be supplied to a vehicle equipped with a mobile communication base station system in a vehicle in which a generator mounted on a vehicle is operated or a separate on-board generator is mounted, And it is possible to service the communication service smoothly even in the unavailable area, so that the survival is high.

FIG. 1 is a conceptual diagram of communication between a vehicle-mounted mobile communication base station system 120 and terminals 110-a to 110-n according to an embodiment of the present invention.
2 is a block diagram illustrating a detailed configuration of the mobile communication base station system 120 shown in FIG.
FIG. 3 is a block diagram illustrating a detailed configuration of a power supply unit 310 for supplying various types of signal cables and power for connection between respective components in the mobile communication base station system 120 shown in FIG.
4 is a conceptual diagram for communicating with the terminals 110-a to 110-n in a state where the vehicle-mounted mobile communication base station system 120 shown in FIG. 1 is mounted on the vehicle 130. FIG.

While the invention is susceptible to various modifications and alternative forms, specific embodiments thereof are shown by way of example in the drawings and will herein be described in detail. It is to be understood, however, that the invention is not to be limited to the specific embodiments, but includes all modifications, equivalents, and alternatives falling within the spirit and scope of the invention.

Like reference numerals are used for similar elements in describing each drawing.

The terms first, second, etc. may be used to describe various components, but the components should not be limited by the terms. The terms are used only for the purpose of distinguishing one component from another.

For example, without departing from the scope of the present invention, the first component may be referred to as a second component, and similarly, the second component may also be referred to as a first component. The term "and / or" includes any combination of a plurality of related listed items or any of a plurality of related listed items.

Unless otherwise defined, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.

Terms such as those defined in commonly used dictionaries are to be interpreted as having a meaning consistent with the contextual meaning of the related art and are to be interpreted as either ideal or overly formal in the sense of the present application Should not.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a vehicle-mounted mobile communication system according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 is a conceptual diagram of communication between a vehicle-mounted mobile communication base station system 120 and terminals 110-a to 110-n according to an embodiment of the present invention. Referring to FIG. 1, a mobile communication base station system 120 is mounted on a vehicle 130 and is configured to be movable. Accordingly, users of the plurality of terminals 110-a to 110-n can access the mobile communication base station system 120 and use the communication service.

In other words, the base station constructing apparatus can be configured to be mounted on the vehicle so that the vehicle 130 on which the mobile communication base station system 120 is mounted can be quickly moved to an area where an urgent situation related to public safety such as disaster and / By providing a base station, it is possible to provide voice, data, and / or various multimedia services based on WiBro.

2 is a block diagram illustrating a detailed configuration of the mobile communication base station system 120 shown in FIG. 2, the vehicle-mounted mobile communication base station system 120 includes a power supply unit (not shown); A first rack 210 receiving power from the power supply unit and relaying communication signals from a plurality of terminals; A second rack 220 which receives power from the power supply unit and provides additional service functions such as call processing and multi-party call support for a terminal connected to the mobile communication base station system of the first rack, call transfer / ); And a plurality of antennas 231 connected to the first rack 210 to receive communication signals from the plurality of terminals 110-a to 110-n of FIG. 1, and the like.

The configuration of the power supply unit is shown in Fig. 3 and will be described later.

The first rack 210 and / or the second rack 220 are detachably assembled to a housing (not shown) mounted on the vehicle 130 (FIG. 1) using a sliding method. Of course, a slot or the like is formed in the housing for this purpose, and a slot guide or the like is formed at one end and / or both ends of the first rack 210 and / or the second rack 220. The first rack 210 and / or the second rack 220 may be fixed to the housing by a bolt-nut method, a screw-thread method, or the like.

The first rack 210 includes wireless connection equipment 211 for collecting communication signals from the plurality of terminals 110-a to 110-n via a wireless path; An access control device 219 for transmitting the collected communication signal to a backbone (not shown); A wireless network synchronizer 217 for performing synchronization between the access control equipment 219 and the miniature repeater 240; Operation management equipment 215 for performing configuration, status, performance and performance management of the connection control equipment 219 or the wireless connection equipment 211; And an operation terminal 213 are constituted. Here, the operation terminal 213 has a cell plan tool that can plan a mobile communication network around a vehicle where the mobile communication base station system is installed.

The operation management device 215 performs configuration / status / failure / performance management for a management target device such as the connection control device 219 and the wireless access device 211 and functions as a Dynamic Host Configuration Protocol (DHCP) Service. In addition, it may include an authentication server (not shown) for authenticating a user of a Diameter-based terminal.

The second rack 220 includes a switching hub 221 for transmitting data between the first rack 210 and the second rack 220. An additional function control device 223 for providing an additional service function such as multi-party call support, call transfer / hold, and text message transmission to the terminal; And a call switching control unit 225 for exchanging calls between terminals connected to the mobile communication base station system.

In addition, exchange equipment is provided for providing call exchange and / or supplementary services for Voice over Internet Protocol (VoIP) voice and / or video calls. This exchange equipment is divided into a call exchange control unit 225 and an additional function control unit 223. The call exchange control unit 225 and the additional function control unit 223 are connected to each other through a SIP (Session Initiation Protocol) , Call reservation, text message transmission, and the like.

Even if the vehicle (130 in FIG. 1) equipped with the mobile communication base station system (120 in FIG. 1) is operated without being connected to the backbone (not shown) by loading such an exchange equipment, / RTI > and / or data transfer services.

 An antenna capable of separating from the vehicle is used for the plurality of antennas 231. [ In other words, the antennas 231 and 250 can be installed at positions where the vehicle (130 in FIG. 1) can not reach. The antennas 231 and 250 may be a sector type antenna and / or an omni type antenna.

In addition, the antenna and the mast are separated from each other by a distance of several hundred meters from the vehicle in order to mount and operate the vehicle shelter in an area where the line of sight (LOS) is good and to avoid a shield around the vehicle.

To separate the antenna 231 from the vehicle 130 by several hundred meters, the radio access equipment 211, 230 is separated into a baseband unit and an RF transmitting and receiving unit. The first radio access equipment 211 having the baseband unit is installed in the first rack 210 in the vehicle 130 and the second radio access equipment 230 having the RF transceiver unit is installed outside the vehicle 130 . Therefore, it is a separate structure so that it can be operated in the vehicle or transported to a remote place.

Although the first and second radio access equipment 211 and 230 are shown separately for the sake of understanding, they are composed of one radio access equipment and constitute the base band unit and the RF transmission / reception unit. Of course, the baseband unit and the RF transmitting and receiving unit are connected through an optical signal.

In addition, a small repeater 240 may be further included. This mini-repeater 240 is for covering a shadow area where radio waves can not reach. Also, the small-sized repeater 240 functions to facilitate smooth communication between the mobile communication base station system 120 and the terminals 110-a to 110-n in a local shadow area.

The miniature repeater 240 is connected to an omnidirectional antenna 241.

Also, the mobile communication base station system 120 can be operated while the vehicle 130 is being started / moved, thereby making it possible to provide a WiBro communication service.

FIG. 3 is a block diagram illustrating a detailed configuration of a power supply unit 310 for supplying power to the mobile communication base station system 120 shown in FIG. 3, the power supply unit 310 includes a constant power source 312, a separately installed generator 313, a secondary battery 315, and a vehicle generator 317 that generate power used in each equipment / . Further, a power distributing device 311 for distributing the generated power is constituted.

In addition, the power supply for each equipment of the mobile communication base station system 120 is configured to be provided in four ways. Generally, the vehicle generator 317 or the on-board generator 313 is used in an area where it is difficult to supply electric power to the constant power source 312 and the constant power source 312 to each device, And the battery 315 is mounted to supply the emergency power source.

All of the power supply schemes supply power to the respective equipments, devices, etc. of each mobile communication base station system 120 through the power distribution device 311.

In addition, the power distributing device 311 functions to stably supply the power generated by each of the power sources 312, 313, 315, and 317 to each device / device.

In addition, environmental equipment 320 for operating temperature optimization of the on-board equipment is constructed. In addition, the environmental equipment 320 is composed of an air conditioner, an air blower, a blower, and a hot water heater. That is, environmental considerations to reduce impacts on external operating environments (temperature, vibration, impact, rainfall, snowfall, etc.) are reflected in the environmental equipment (ie, the shelter equipment) mounted on the vehicle loading platform. In addition, various additional devices (antenna masts, etc.) for supporting the communication link opening can be designed and reflected in the shelter in consideration of the operability of the system when moving the vehicle. It is also possible to reflect such complex factors such as space, weight, power consumption and the like on the vehicle mount to the vehicle and the shelter.

3, the small-sized repeater 240 is connected to the connection control equipment 219 mounted on the first rack 210 through an optical cable. The plurality of antennas 250 and 231 and the first rack 210 are connected to each other through an RF (Radio Frequency) cable. In addition, the first rack 210 and the second rack 220 are connected through an unshielded twisted pair (UTP) cable.

4 is a conceptual diagram for communicating with the terminals 110-a to 110-n in a state where the vehicle-mounted mobile communication base station system 120 shown in FIG. 1 is mounted on the vehicle 130. FIG.

1 to 4, a general commercial mobile communication base station is compared with a mobile communication base station system 120 according to an embodiment of the present invention, as shown in Table 1 below.

characteristic Mobile communication base station (commercial) The mobile communication base station system 120, Mobility
flexibility ■ Base station equipment is installed indoors, antenna is fixed on rooftop or steel tower, so it is difficult to change the location after initial installation (Fixed)
■ Initial antennas can be deployed and installed only when the antennas are installed and installed ■ Base station equipment and antennas can be mounted on the vehicle and operated during vehicle stop or transportable
■ Mast and antenna can be removed from the vehicle and moved to areas where communication service is required. Survivability


■ Main facilities are fixed inside and outside, so there is no restriction on size, weight, power supply (power consumption), vibration, shock, temperature etc. ■ It is installed in the vehicle and it is operated during stop or running, so that it can withstand vibration and shock.
⇒ Equipment miniaturization, solidification
⇒ Equipment re-selection and redesign
⇒ Mounting the ballast ■ Centralized authentication architecture
⇒ Central communication server can not be provided in case of failure or failure of central authentication server operated by each mobile communication company Distributed Authentication Architecture
⇒ Even if the authentication server is distributed and broken down by each vehicle, communication service can be provided through the authentication server of other mobile station vehicle
⇒ It is possible to support inter-terminal communication within a service area even with one mobile base station vehicle ■ Operates normally with normal power (normal phase) and supplies emergency power generator ■ Various power sources such as constant power source, rechargeable battery, vehicle power generator, external power generator, etc. can be operated ■ Major equipment / facilities such as server installed and operated in constant temperature and humidity environment ■ In order to stabilize the operation of the equipment in a poor operating environment, it is mounted in a shelter equipped with an air conditioner, a heating device, and a vehicle hot water heater. Base station signal transmission ■ Terminal-base station wireless, backbone network wired ■ Wireless between terminal and base station, backbone network wireless Distance ■ Providing service within 1 ~ 2km between base station and mobile terminal ■ Expansion of communication range from 12 ~ 13km using mobile phone and signal amplification device Network plan Unified network plan
⇒ The national network can be planned as a single unit of operation - Decentralized network planning
⇒ It is possible to plan the communication network by the area / area where the vehicle is located.

Of course, there are vehicle type mobile base stations among commercial mobile communication base stations, but they are only a temporary operation in a place where traffic overload is expected due to concentration of a large number of people such as a stadium and a performance hall.

110-a to 110-n:
120: mobile communication base station system
130: vehicle
210: first rack 220: second rack
211,230: Wireless access equipment
213: Operation terminal 215: Operation management equipment
217: Wireless network synchronizer 219: Connection control equipment
221: switching hub 223: additional function control device
225: Call exchange control device
231: Antenna
240: Small Repeater
241: Omnidirectional antenna
250: GPS (Global Positioning System) antenna
310: Power supply
311: Power distribution unit 312: Constant power source
313: Separate Mounted Generator 315: Secondary Battery
317: Vehicle generator
320: Environmental equipment

Claims (13)

In a vehicle-mounted mobile communication base station system,
Power supply;
A first rack that is a base station equipment that receives power from the power supply unit and relays communication signals from a plurality of terminals;
A second rack, which is an exchange equipment for receiving a power from the power supply unit and providing an additional service function including a call processing and a conference call support, a call transfer / hold and a text message transmission function of a terminal connected to a mobile communication base station system; And
And a plurality of antennas coupled to the first rack to receive communication signals from the plurality of terminals,
The first rack and the second rack may be detachably attached to the housing by a sliding method,
Wherein the first rack comprises wireless connection equipment for collecting communication signals from the plurality of terminals via a wireless path; Access control equipment for transmitting the collected communication signals to the backbone; A wireless network synchronizer for performing a small relay period synchronization with the access control equipment; And operation management equipment for performing the configuration, status, performance, and performance management of the connection control equipment or the radio access equipment,
The second rack comprising: a switching hub for transferring data between equipment mounted in the first rack and the second rack; An additional function control device for providing additional service functions such as multi-party call support, call transfer / hold, and text message transmission; And a call switching control device for exchanging a call between terminals connected to the mobile communication base station system,
Wherein the power supply unit comprises a combination of a constant power source, a vehicle generator, a separate-mounted generator, and a secondary battery.
delete delete The method according to claim 1,
Wherein the operation management device further comprises an authentication server for authenticating a user of a Diameter-based terminal.
The method according to claim 1,
Wherein the radio access equipment is divided into a first radio access equipment having a baseband unit and a second radio constant rate equipment having an RF transceiver unit so as to separate the antenna from the vehicle by a certain distance, .
delete The method according to claim 1,
Wherein the first rack communicates with the plurality of terminals using a WiBro network.
The method according to claim 1,
And the small-sized repeater is connected to the connection control equipment installed in the first rack through an optical cable.
delete The method according to claim 1,
Wherein the power supply unit includes a power distribution device that distributes power from any one of a constant power source, a vehicle generator, a separation-mounted generator, and a combination of secondary batteries to the first rack or the second rack. Type mobile communication base station system.
The method according to claim 1,
Wherein the plurality of antennas are antennas detachable from a vehicle and are sector antennas or omnidirectional antennas.
The method according to claim 1,
The first rack and the second rack are connected to each other through an unshielded twisted pair (UTP) cable, and the first and second racks are connected to each other through an unshielded twisted pair And the access device is an RF transmitting / receiving unit.
The method according to claim 1,
And an environmental device connected to the power supply unit to perform cooling and heating.

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