KR20120096290A - System for expanding network domain using microwave communications - Google Patents

System for expanding network domain using microwave communications Download PDF

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Publication number
KR20120096290A
KR20120096290A KR1020110015613A KR20110015613A KR20120096290A KR 20120096290 A KR20120096290 A KR 20120096290A KR 1020110015613 A KR1020110015613 A KR 1020110015613A KR 20110015613 A KR20110015613 A KR 20110015613A KR 20120096290 A KR20120096290 A KR 20120096290A
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KR
South Korea
Prior art keywords
network
master
slave
antenna
expansion
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Application number
KR1020110015613A
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Korean (ko)
Inventor
박태환
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주식회사 휴텍이일
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Priority to KR1020110015613A priority Critical patent/KR20120096290A/en
Publication of KR20120096290A publication Critical patent/KR20120096290A/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/14—Relay systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
    • H04W16/18—Network planning tools
    • H04W16/20—Network planning tools for indoor coverage or short range network deployment
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W84/00—Network topologies
    • H04W84/18—Self-organising networks, e.g. ad-hoc networks or sensor networks
    • H04W84/20—Master-slave selection or change arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W84/00—Network topologies
    • H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
    • H04W84/10—Small scale networks; Flat hierarchical networks
    • H04W84/12—WLAN [Wireless Local Area Networks]

Abstract

PURPOSE: A network area extension system using microwave is provided to easily cope with degradation of connection speed and to expand a network area based on a microwave communication method. CONSTITUTION: First and second slave expansion modules(412a,412b) include a slave M/W antenna. The first and second slave expansion modules are connected to at least one expansion network. Each of first and second slave expansion modules is connected with at least one expansion network. The slave M/W antenna is connected to a master M/W antenna of the master expansion module. The first and second slave expansion modules switches packets which are received from the slave M/W antenna to a specific port. The specific port corresponds to each of the expansion network.

Description

Network area expansion system using microwaves {SYSTEM FOR EXPANDING NETWORK DOMAIN USING MICROWAVE COMMUNICATIONS}

The present invention relates to a network connection technology, and more particularly, to a technology for expanding a network area.

Mobile Internet usage is skyrocketing thanks to the explosive popularity of smartphones and tablet computers. Since the use of mobile Internet through mobile communication networks puts a lot of load on mobile communication networks, the call quality is rapidly deteriorating as the number of smartphone users increases. To cope with this, mobile carriers are installing WLAN APs in various places for the purpose of distributing mobile Internet usage.

Nationally, as the Internet becomes a public good, the equalization of Internet access opportunities is recognized as a new fundamental right, and the mobile LAN network is competitively competitive worldwide because it can promote the creation and growth of new businesses through the mobile Internet. It is being built.

The WLAN AP has a restriction to transmit a limited output radio wave within the ISM band which does not require a license under the current scheme. In addition, because the recently introduced high speed WLAN standard uses a large number of antennas and the latest beam shaping techniques, the coverage that can substantially provide the expected performance in a complex building structure or a poor propagation environment of the city is further reduced. It was.

By the way, the current wireless LAN network is being installed to extend the coverage of the wired LAN by installing a wireless LAN AP at the end of the wired LAN. Therefore, cabling for supporting the wired LAN access to the area to provide the WLAN access service is essential.

Increasing WLAN APs in this environment means that many wired LAN cablings are required for each area to provide WLAN access, and deployment costs are low.

An object of the present invention is to provide a network area extension system for extending a network area based on a microwave communication method.

Microwave (M / W) network expansion system according to an aspect of the present invention,

M / W band to be received or transmitted by a packet signal and a master microwave (M / W) antenna connected to or connected to a first packet-based network or transmitted from the first packet-based network. A master expansion module for converting signals to and from each other; And

An M / W antenna connected to at least one expansion network, the slave M / W antenna connected to a master M / W antenna of the master expansion module through an M / W link, and to be received or transmitted by the slave M / W antenna; It may include a slave expansion module for switching packets corresponding to the W band signal to a specific port corresponding to each of the expansion network.

According to one embodiment, the master expansion module is

At least one master M / W antenna;

A master M / W modulation / demodulator for driving the master M / W antenna and converting a packet signal for the first packet-based network and an M / W band signal to be received or transmitted by the master M / W antenna; And

It may include a network extension interface connected to the first packet-based network.

According to an embodiment, the network extension interface may be any one of a repeater, a hub, or a switch.

According to an embodiment, the network extension interface may operate as a power receiving device (PD) that receives power through a PoE standard.

According to one embodiment, the master expansion module is

It may further include a divider for branching the M / W band signal of one master M / W modulation and demodulation to two or more master M / W antenna.

According to one embodiment, the slave expansion module is

Slave M / W antenna;

A slave M / W modulation / demodulator for driving the slave M / W antenna and converting packet signals for the extended network and M / W band signals to be received or transmitted by the slave M / W antenna; And

It may include a switching hub for switching packets for the extension network to a specific port corresponding to each of the extension network.

According to an embodiment, the switching hub may operate as a power supply device (PSE) that supplies power through the PoE standard.

According to one embodiment, the switching hub may be configured to communicate with the extension network using power line communication (PLC).

According to one embodiment, the slave expansion module is

An additional expansion network can be connected by connecting an additional master expansion module to one of the ports.

According to the apparatus and method of the present invention, a high-speed wireless LAN network can be expanded through microwave communication without wired LAN cabling.

In addition, it is possible to flexibly install the remote radio frequency (RF) units in consideration of the layout of buildings and the influence of the features, and can easily cope with a drop in connection speed due to changes in the surrounding environment.

Furthermore, it can communicate with a large number of terminals inside the building by using a PLC communication method through a power line that supplies power to subscriber RF units installed outside the building. There is no need to retrofit old telecommunication lines.

1 is a diagram conceptually illustrating a microwave network expansion system according to an embodiment of the present invention.
2 is a block diagram conceptually illustrating a master extension module of a microwave network expansion system according to an embodiment of the present invention.
3 is a block diagram conceptually illustrating a slave expansion module of the microwave network expansion system according to an embodiment of the present invention.
4 to 7 are conceptual views illustrating examples of expanding and building a network using microwave network extension systems according to embodiments of the present invention.

For the embodiments of the invention disclosed herein, specific structural and functional descriptions are set forth for the purpose of describing an embodiment of the invention only, and it is to be understood that the embodiments of the invention may be practiced in various forms, The present invention should not be construed as limited to the embodiments described in Figs.

Hereinafter, with reference to the accompanying drawings, it will be described in detail a preferred embodiment of the present invention. The same reference numerals are used for the same constituent elements in the drawings and redundant explanations for the same constituent elements are omitted.

1 is a diagram conceptually illustrating a microwave network expansion system according to an embodiment of the present invention.

Referring to FIG. 1, the microwave (M / W) network expansion system may be implemented with a master expansion module 11 and a plurality of slave expansion modules 12.

The master expansion module 11 is connected to the Internet network 20 previously built, and the slave expansion modules 12 may connect the at least one expansion network 30 to the Internet network 20.

The master expansion module 11 and the slave expansion module 12 each contain at least one microwave (M / W) unit and an antenna, so that the master expansion module is hundreds of meters or kilometers away from the microwave (M / W) link. Each of the module 11 and the slave expansion modules 12 are connected.

M / W links are for example 5.8 Ghz ISM band, X band (6.2 GHz to 12.9 GHz), Ku band (12.9 GHz to 18 GHz), K band (18 GHz to 26.5 GHz) Ka band (26.5 GHz to 40 GHz). ), The M / W band signal of at least one of the Q band (33 GHz to 50 GHz), the V band (40 GHz to 75 GHz), and the W band (75 GHz to 110 GHz) may be used.

The master expansion module 11 may be implemented as a repeater, one M / W modulator and an M / W antenna when connected to one slave expansion module 12. Furthermore, the master extension module 11 may be implemented as a hub or switch, a plurality of M / W modulation and demodulation units, and M / W antennas when connected to various slave extension modules 12.

The M / W modulator demodulates the M / W band signal and the packet data signal, and the M / W antenna may transmit and receive the M / W band signal.

According to an embodiment, the master expansion module 11 may include a modem for power line communication (PLC) to secure a connection to the power supply and the Internet network 20 through power line communication, and is defined in, for example, IEEE 802.3. Power over Ethernet (PoE) standards can be supported to establish a power supply and Internet network 20 connection via a CAT5 cable for connection with the Internet network 20. In the latter case, the expansion capability or M / W output of the master expansion module 11 may be limited.

The slave expansion module 12 may include an M / W modulator and an antenna, and may include a built-in access point (AP) for connecting the terminals 31 wirelessly or a hub or switch for connecting by wire. have. At this time, such a hub or switch may support the PoE standard to provide power and network access to an outdoor AP or an indoor AP connected to the hub or switch.

According to an embodiment, the slave extension module 12 may further comprise a powerline communication hub or switch, for example other terminals 31a or APs 32, 33 in the building in which the slave extension module 12 is installed. ) And a power line communication method.

The expansion network 30 includes terminals 31b wirelessly connected to the embedded AP of the slave expansion module 12, terminals 31c or a slave expansion module connected by wire to a hub or switch of the slave expansion module 12. It may be configured as terminals 31d wirelessly connected to the indoor APs 32 or the external APs 33 connected by wire to 12.

Such extension networks 30 may be configured for each slave extension module 12. In order to provide an extended network area in a new place, an M / W link including a master expansion module 11 and a slave expansion module 12 is additionally installed in the existing Internet network 20, or the slave expansion module 12 is installed. The effect can be achieved by additionally connecting the new master expansion module 11 and the slave expansion module 12 to one port of the hub or switch.

2 is a block diagram conceptually illustrating a master extension module of a microwave network expansion system according to an embodiment of the present invention.

Referring to FIG. 2, the master extension module 11 includes a network extension interface 111, an M / W modulator 112, and an M / W antenna 113, and according to an embodiment, one M / W demodulator. The distributor 112 may further include a divider 114 for distributing the M / W signals to the plurality of M / W antennas 113.

The network extension interface 111 extends through one or more M / W modulators 112 and M / W antennas 113, depending on the configuration of one or more extension networks 30 for connection to the Internet network 20. Are connected to each of the networks 30.

To this end, the network extension interface 111 is externally connected to the Internet network 20 and internally connected to one or more M / W modulation and demodulation unit 112.

If the master expansion module 12 is intended to connect only one expansion network to the Internet network 20, the network expansion interface 111 is connected to only one M / W modulation and demodulation unit 112, so that the packet simply It can be implemented as a repeater that amplifies the signal or corrects errors.

On the other hand, if you want to connect a plurality of expansion networks to the Internet network 20 through the master expansion module 12, network extension interface 111 may be implemented as a hub or switch. In this case, in one embodiment, a plurality of M / W modulation and demodulation units 112 and a plurality of M / W antennas 113 that are in charge of each expansion network are connected to ports provided by the network expansion interface 111. Can be. In another embodiment, one M / W modulation and demodulation unit 112 and an M / W antenna 113 are used, but packet transmission through different ports may be performed through different channels.

According to an embodiment, the network extension interface 111 operates as a PD (Powered device) according to PoE defined in IEEE 802.3af, and receives power through a LAN cable of the Internet network 20. ) And the M / W antenna 113.

The M / W modulation and demodulation unit 112 may convert the packet signal and the M / W band signal to each other, and the M / W antenna 113 may transmit or receive the M / W band signal.

The M / W band signal may use various bands exemplified above, and may preferably use the 5.8 GHz, 11 GHz, and 60 GHz bands. Furthermore, high speed and robust wireless communication can be provided by adopting modulation schemes such as QPSK, QAM, OFDM, CCK, and frequency hopping and spread spectrum.

In this case, the data rate that can be transmitted through the M / W band signal is a level of 100 Mbps to 1 Gbps.

According to an exemplary embodiment, a plurality of M / W antennas 113 may be required in one M / W modulation and demodulation unit 112 according to an arrangement of the extension network. For this purpose, each M / W may be provided through the distributor 114. The antennas 113 may branch the M / W band signal.

3 is a block diagram conceptually illustrating a slave expansion module of the microwave network expansion system according to an embodiment of the present invention.

Referring to FIG. 3, the slave expansion module 12 may include a switching hub 121, an M / W modulator 122, and an M / W antenna 123.

The M / W antenna 123 and the M / W modulation and demodulation unit 122 of the slave expansion module 12 are connected to the M / W modulation and demodulation unit 112 and the M / W antenna 113 and M / W antenna 113 of the master expansion module 11. It forms a W link and sends and receives M / W band signals to each other.

The M / W antenna 123 transmits or receives an M / W band signal and the M / W modulator 122 converts the M / W band signal and the packet data signal. The M / W modulator 122 is connected to the WAN port of the switching hub 121.

The switching hub 121 provides a plurality of ports and may connect the embedded AP 125 and other network devices 126, 127, and 128. The network devices 126, 127, 128 that may be connected to the ports of the switching hub 121 may be, for example, indoor APs, outdoor APs, additional switches, or additional master expansion modules.

According to an embodiment, the switching hub 121 may be implemented to perform a role of power sourcing equipment (PSE) of the PoE, and may include an indoor AP 126, an indoor AP 127, a switch 128, and a master connected to a port. Power can be supplied along the LAN cable to the expansion module.

In another embodiment, the slave extension module 12 may further include a switching hub 124 for power line communication, and may configure a power line network in a building in which the slave extension module 12 is installed.

4 to 7 are conceptual views illustrating examples of expanding and building a network using microwave network extension systems according to embodiments of the present invention.

Referring to FIG. 4, when a wireless network is to be constructed over a long distance such as a road, a tunnel, or a bridge, the first master expansion module 411a connected to the external Internet network may be located at an appropriate location in the wireless network area. Is installed.

The first slave expansion module 412a is connected to the first master expansion module 411a through an M / W link, and the wired / wireless expansion network 430a may be established in a predetermined space around the first slave expansion module 412a. have. At this time, the second master expansion module 411b is connected to the port of the first slave expansion module 412a, so that the second slave expansion module 412b of the second slave expansion module 411b is connected to the M / W link. A second extension network 430b may be built in the surrounding predetermined space. In this way, wired and wireless networks can be expanded.

Subsequently, referring to FIG. 5, similar to FIG. 4, when a wireless network is to be constructed over a long distance such as a road, a tunnel, or a bridge, the network may be expanded in various directions.

The first master expansion module 511a has two M / W antennas and two M / W modulators.

On the right side, the first slave expansion module 512a is connected to the right M / W antenna of the first master expansion module 511a through an M / W link and wired / wireless in a predetermined space around the first slave expansion module 512a. Extended network 530a may be established. At this time, the second master expansion module 511b is connected to the port of the first slave expansion module 512a, so that the second slave expansion module 512b of the second slave expansion module 511b is connected to the M / W link. A second extension network 530b may be built in the surrounding predetermined space.

On the left side, the third slave expansion module 512c is connected to the left M / W antenna of the first master expansion module 511a through an M / W link, and the third slave expansion module 512c is arranged in a predetermined space around the third slave expansion module 512c. Wired and wireless extension network 530c may be established.

Referring to FIG. 6, extension networks may be constructed in any direction around a place where an existing network is built.

The master expansion module 611 has three M / W modulators and M / W antennas. Each M / W antenna of the master expansion module 611 is connected to the M / W antennas of the respective slave expansion modules 612a, 612b, and 612c by an M / W link, so that the slave expansion modules 612a, 612b, Wired and wireless extension networks 630a, 630b, and 630c may be provided in a predetermined space around 612c.

Finally, referring to FIG. 7, the network can be expanded even in a place where it is difficult to install a semi-permanent communication infrastructure such as a remote construction site or a temporary building.

The master expansion module 711 connected to the Internet network is connected to the slave expansion module 712 by an M / W link, and the slave expansion module 712 is connected to indoor APs on each floor based on PLC or Ethernet or outdoors. Type AP may be connected.

As described above, although the present invention has been described by way of limited embodiments and drawings, the present invention is not limited to the above-described embodiments, which can be variously modified and modified by those skilled in the art to which the present invention pertains. Modifications are possible. Accordingly, the spirit of the invention should be understood only by the claims set forth below, and all equivalent or equivalent modifications will fall within the scope of the invention.

11 master expansion module
111 network extension interface
112 M / W Modulator
113 M / W Antenna
114 distributor
12 slave expansion module
121 switching hub
122 M / W Modulator
123 M / W Antenna
124 Powerline Communication Switching Hub
20 Internet
30 extension network
411, 511, 611, 711 master expansion module
412, 512, 612, 712 slave expansion modules

Claims (9)

M / W band to be received or transmitted by a packet signal and a master microwave (M / W) antenna connected to or connected to a first packet-based network or transmitted from the first packet-based network. A master expansion module for converting signals to and from each other; And
An M / W antenna connected to at least one expansion network, the slave M / W antenna connected to a master M / W antenna of the master expansion module through an M / W link, and to be received or transmitted by the slave M / W antenna; And a slave extension module for switching packets corresponding to W band signals to specific ports corresponding to each of the extension networks. The method according to claim 1, wherein the master expansion module
At least one master M / W antenna;
A master M / W modulation / demodulator for driving the master M / W antenna and converting a packet signal for the first packet-based network and an M / W band signal to be received or transmitted by the master M / W antenna; And
And a network extension interface coupled to the first packet-based network. The system of claim 2, wherein the network expansion interface is any one of a repeater, a hub, or a switch. The system of claim 2, wherein the network expansion interface operates as a power receiving device (PD) for receiving power through a PoE standard. The method according to claim 2, wherein the master expansion module
And a divider for branching the M / W band signal of one master M / W modulator to two or more master M / W antennas. The method of claim 1, wherein the slave expansion module
Slave M / W antenna;
A slave M / W modulation / demodulator for driving the slave M / W antenna and converting packet signals for the extended network and M / W band signals to be received or transmitted by the slave M / W antenna; And
And a switching hub for switching packets for the extension network to a specific port corresponding to each of the extension networks. 7. The system of claim 6 wherein the switching hub operates as a power supply (PSE) that supplies power via a PoE specification. 7. The system of claim 6 wherein the switching hub communicates with the extension network using power line communication (PLC). The method of claim 1, wherein the slave expansion module
And a further expansion network by connecting an additional master expansion module to one of the ports.
KR1020110015613A 2011-02-22 2011-02-22 System for expanding network domain using microwave communications KR20120096290A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102430456B1 (en) * 2021-03-10 2022-08-08 배성룡 Mobile communication service system using internet networks using utp cables

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102430456B1 (en) * 2021-03-10 2022-08-08 배성룡 Mobile communication service system using internet networks using utp cables

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