KR20140083076A - Device and method for high-speed wireless data transmission with multi-carrier in tv white space band - Google Patents

Abstract

The present invention relates to a system and method for high-speed wireless data transmission using multiple carriers in a TV idle band.
For this purpose, the present invention employs a baseband modem as a multi-carrier and multi-input multi-output (MIMO) baseband modem so that multiple carriers can be transmitted in a TV idle band, Speed wireless data backhaul apparatus using a TV idle band majority carrier to enable multi-carrier and MIMO transmission by removing the second idle-band second main hub unit 602 and the second idle- A plurality of carrier MIMO baseband modems configured to simultaneously perform modulation and demodulation with synchronized timing between carriers in each of the remote hub units 608, 613, and 616 and to support MIMO do.
The present invention having the above-described structure provides a multi-input multi-output (MIMO) transmission technique and a variety of wireless network topologies of a TV idle band to transmit and receive high-speed wireless data using a TV idle band wireless network Linear and star configurations are possible so that the quality and reliability of the product can be greatly improved. Therefore, it is possible to provide a good image by satisfying various needs (needs of users) of the users.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a system and a method for high-speed wireless data transmission using a plurality of carriers in a TV idle band,

The present invention relates to a system and method for transmitting high-speed wireless data using a plurality of carriers in a TV idle band, and more particularly, to a system and method for transmitting high-speed wireless data using a TV idle- linear and star configurations to enable multi-input multi-output transmission technology and various wireless network topologies of TV idle band, So that the user can satisfy the various needs of the user, so that a good image can be provided.

As is well known, frequency sharing technology called cognitive radio has been activated due to the imbalance of demand and supply of radio wave resources of mobile communication and radio communication. Cognitive radio is a technology that minimizes frequency interference while using different types of services and terminals in the same frequency band. As a result of the high frequency efficiency, cognitive radio is being developed for next generation mobile communication technology. In particular, sharing of broadcasting and communication frequency, which is known to be difficult in the TV band, has become possible due to the development of cognitive radio technology, and a TV white space high speed wireless data backhaul device is required. The ultra-high speed wireless data backhaul using TV idle bandwidth is advantageous in terms of reach, weather conditions, economics, installation and maintenance compared to existing 2.3GHz or 11GHz microwave band wireless data backhaul.

Figure 1 illustrates a major technique of cognitive radio technology. The cognitive radio technology uses an underlay technique and an overlay technique. A typical technique using an underlay technique is an ultra-wideband (UWB) technique. In the UWB technique, a low power ultra-wideband frequency band is used in a frequency band used by a first primary user and a second priority user A first recognition wireless user 102 is additionally used. A representative technique using the overlay technique is a TV white space technique in which an empty channel is recognized in a frequency band allocated for the use of a third primary user and a fourth senior user 103, And is a technique used by the second perceived wireless user 105. That is, the TV idle band refers to an empty frequency band not used by a broadcasting company in the VHF and UHF frequency bands allocated for TV broadcasting.

2 shows the TV idle band in the US broadcast channel frequency band. TV band is 6MHz per channel. The TV idle band in the United States is 54MHz to 698MHz.

FIG. 3 shows a TV idle band in a frequency band of a domestic broadcasting channel. TV band is 6MHz per channel. The TV idle band is 470MHz ~ 698MHz in Korea.

FIG. 4 is a graph illustrating a comparison result between a conventional microwave backhaul apparatus and a TV idle band backhaul apparatus. Since the TV idle band backhaul device uses a relatively low frequency band, there is an advantage that the propagation path loss is small, the service coverage is long, and the price is low.

FIG. 5 is a diagram illustrating a conventional TV idle band backhaul service. An ethernet network connected to the TCI-IP network is installed in the first telephone station 501. The data transmitted in the TCP-IP network is transmitted to the first main hub unit 502 through a wireless area network (WAN) . The data received in the first main hub unit 502 is connected to the first network processor 503. [ The first network processor 503 processes the TCP-IP network protocol to extract data. The extracted data is input to the first baseband modem 504 for the TV idle band wireless network and modulation is performed. The first baseband modem 504 is implemented in an orthogonal frequency division multiplexing (OFDM) scheme and the data signal modulated in the first baseband modem 504 is transmitted to the first RF transceiver 505. The first RF transceiver is converted to an RF signal in TV white space. The TV idle band RF signal is emitted from a first antenna 506 and received at a first remote hub unit. The first remote hub unit 508 receives the TV idle band RF signal through the second antenna 507. The TV idle band RF signal received at the second antenna 507 is converted to a baseband signal at the second RF transceiver 509. The baseband signal is subjected to OFDM demodulation in the second baseband modem 510. The demodulated data signal is converted into a WiFi RF signal in the 2.4 GHz or 5 GHz band in the first Wi-Fi converter 511. The Wi-Fi RF signal is radiated through the third antenna 512 and data is received at the first terminal 513. The first terminal 513 is a terminal capable of Wi-Fi service.

The WiFi signal transmitted from the first terminal 513 is received at the third antenna 512 of the first remote hub unit. The received Wi-Fi signal is extracted from the first Wi-Fi converter 511 and subjected to OFDM modulation in the second baseband modem 510. The modulated data signal is converted from the second transceiver 509 to a TV idle band RF signal. The TV idle band RF signal is emitted from the second antenna 507 and is received by the first antenna 506 of the first main hub unit. The received TV idle band RF signal is converted from the first RF transceiver 505 to a baseband signal. The baseband signal is demodulated in the first baseband modem 504. The demodulated data signal is processed in the first network processor 503 and then transmitted to the first telephone station 501 through a wide area network (WAN) network to be connected to a TCP-IP network .

The channel of the TV idle band is in units of 6 MHz, and the TV idle band transmission channel is selectively set and used because of interference problem with the broadcasting channel. The TV idle band transmission channel selection is performed by a spectrum method, a location based database method, and a mixed method (spectrum method and location based DB method). The spectral method measures TV idle band spectrum power and finds a channel that is not used as a broadcasting signal. The location-based DB method is a method of using a database (DB) for information on broadcast channels used in the whole country. Spectral power measurements of the TV idle band are performed in the baseband modem 504 and the second baseband modem 510 for the spectral method. For the location based DB scheme, the first location based DB server 500 is connected to the TCP-IP network.

The conventional TV idle band backhaul apparatus shown in FIG. 5 has a problem in that it can not support multi-input multi-output (MIMO) because only one carrier of 6 MHz band is transmitted and received in a TV idle band and high- It is difficult. In addition, there is a problem that a linear and star configuration required in a TV idle band wireless network topology is impossible.

Accordingly, in order to solve the problems of the related art in the related art, various wireless network topologies such as multi-carrier and MIMO transmission technologies and TV idle bandwidths can be used to transmit / receive high-speed wireless data using a TV idle- Speed wireless data backhaul apparatus using a plurality of carriers in a TV idle band capable of linear and star configurations.

SUMMARY OF THE INVENTION The present invention has been made in order to solve the problems of the related art as described above, and it is an object of the present invention to provide a baseband modem for transmitting a plurality of carriers in a TV idle band and a baseband modem for multiple carriers and MIMO, The first object of the present invention is to enable mutual carrier and MIMO transmission by eliminating mutual interference with transmission / reception timing synchronization.

A second object of the present invention is to provide a star topology configuration between a main hub unit and a plurality of remote hub units by transmitting and receiving TV idle band wireless network data by time division duplexing.

A third object of the present invention is to provide a base station modem and an RF transceiver for a retransmission in a remote hub unit, thereby enabling a linear topology configuration.

A fourth object of the present invention is to add a network switch to the main hub unit and the remote hub unit so as to have a LAN configuration, thereby reducing the overall amount of wireless network data, thereby enabling super high-speed data transmission.

The present invention greatly improves the quality and reliability of the product due to the above-described effects, and thus provides a high-speed wireless data transmission using a plurality of carriers in a TV idle band, which can provide a good image by satisfying various needs A system and method are provided.

In order to achieve the above object, the present invention provides a baseband modem for a multi-carrier multi-input multi-output (MIMO) and a baseband modem for transmitting a plurality of carriers in a TV idle band, Speed wireless data backhaul apparatus using a TV idle band majority carrier to enable mutual carrier and MIMO transmission by eliminating the mutual interference between the second main hub unit and the second idle bandwidth unit for transmitting super high speed data, And a multi-carrier MIMO baseband modem in which modulation and demodulation are simultaneously performed at synchronized timings between the respective carriers in the remote hub unit, and MIMO is supported, in a TV idle band And provides a system for high-speed wireless data transmission using a plurality of carriers.

Further, the present invention provides a baseband modem for a multi-carrier and a multi-input multi-output (MIMO) for transmitting a plurality of carriers in a TV idle band, The method comprising the steps of: receiving an RF signal in a TV idle band in a TV idle band radio section; transmitting the RF signal in a time-division manner in a TV idle band radio section; And provides a method for high-speed wireless data transmission using a plurality of carriers.

As described in detail above, the ultra high-speed wireless data backhaul apparatus using the TV idle band majority carriers applied to the present invention provides an effect that a large number of carriers can be transmitted in the TV idle band wireless network.

Also, an ultra high-speed wireless data backhaul apparatus using a TV idle band majority carrier according to another embodiment of the present invention provides an effect of MIMO transmission in a TV idle band.

Also, an ultra high-speed wireless data backhaul apparatus using TV idle band majority carriers according to another embodiment of the present invention provides an effect of configuring a star and linear topology in a TV idle band wireless network.

Also, an ultra high-speed wireless data backhaul apparatus using TV idle band majority carriers according to another embodiment of the present invention provides a LAN configuration effect.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 illustrates a main technique of cognitive radio technology.
2 shows a TV idle band in the US broadcast channel frequency band;
3 is a diagram illustrating a TV idle band in a domestic broadcast channel frequency band.
Figure 4 is a comparative analysis of existing microwave backhaul devices and TV idle band backhaul devices
Fig.
FIG. 5 is a diagram illustrating a conventional TV idle band backhaul service configuration; FIG.
FIG. 6 is a diagram illustrating an example of an ultra high frequency
Lt; RTI ID = 0.0 > backhaul < / RTI >
7 is a view illustrating a main hub unit according to an embodiment of the present invention.
8 is a view showing a remote hub unit according to an embodiment of the present invention.
9 is a diagram illustrating a multiple carrier time division scheme in the TV idle band of the present invention
if.

A system and method for high-speed wireless data transmission using a plurality of carriers in a TV idle band applied to the present invention is configured as shown in FIGS. 1 to 9.

In the following description of the present invention, detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory and are intended to provide further explanation of the invention as claimed.

As shown in FIG. 6, a baseband modem is a multi-carrier and multi-input multi-output (MIMO) baseband modem for transmitting a plurality of carriers in a TV idle band, Speed wireless data backhaul apparatus using a TV idle band majority carrier to enable mutual carrier and MIMO transmission by eliminating mutual interference by intermittent transmission / reception timing synchronization, a high-speed wireless data backhaul apparatus using a TV idle bandwidth second main hub unit Modulation and demodulation are simultaneously performed with synchronized timing between the modems of the carriers in the first, second, third, and fourth remote hub units 608, 613, and 616, and a plurality of MIMO- The present invention provides a system for high-speed wireless data transmission using multiple carriers in a TV idle band including a carrier MIMO baseband modem.

In particular, a first MIMO antenna 603 is connected to the second main hub unit 602, second and fourth MIMO antennas 607 and 609 are connected to the second remote hub unit 608, A third MIMO antenna 603 is connected to the remote hub unit 613 and a fifth MIMO antenna 615 is connected to the fourth remote hub unit 616.

In addition, a high-speed wireless data backhaul apparatus using the TV idle band majority carriers can transmit and receive in a time division duplexing mode in a TV idle band wireless network in a star or linear topology, And a MIMO RF transceiver 703 and a MIMO antenna.

The ultra high-speed wireless data backhaul apparatus using the TV idle band majority carriers includes a network switch 807 so that LAN configuration is possible in the main hub unit and the remote hub unit.

6, a high-speed wireless data backhaul apparatus using the TV idle band majority carriers applied to the present invention is transmitted from a TCP-IP network through a second location based DB server 600, Data is input to the second main hub unit 602 via the second telephone station 601 and the received data of the second main hub unit is subjected to TCP-IP protocol processing at the network switch 701 of the WAN interface 700, The processed data is selectively transmitted to the third terminal 606 via the radiating or LAN to the first MIMO antenna 603 or the fourth antenna 604 and the TV idle band RF signal radiated to the first MIMO antenna 603 A WiFi signal received at the second remote hub unit 608 and the third remote hub unit 613 and radiated to the fourth antenna 604 is transmitted to the second terminal 605, The TV idle band R received by the second MIMO antenna 607 of the unit 608 F signal is selectively transmitted to the fourth MIMO antenna 609 and the fifth antenna via the internal processing or transmitted to the fifth terminal 612 via the LAN and the TV idle band RF signal transmitted to the fourth MIMO antenna 609 The WiFi signal is received and processed by the fifth MIMO antenna 615 of the fourth remote hub unit 616 and the WiFi signal emitted from the fifth antenna 610 is configured to be transmitted to the fourth terminal 611. [

7, the WAN interface 700 is subjected to TCP-IP protocol processing in the first network switch 701, and the extracted data is selectively transmitted to the first multi-carrier MIMO modem 702 Data sent to the first 2.4G Wi-Fi transceiver 706 and the first 5G Wi-Fi transceiver 709 via the LAN port to the LAN port, and the data transmitted to the first multi-carrier MIMO modem 702 is transmitted to the first 2.4G Wi- And the modems modulated for each carrier are mutually timing synchronized. The multiple carrier MIMO signals generated in the first multi-carrier MIMO modem 702 are transmitted to the first MIMO RF transceiver 703 ), And the converted RF signal is radiated via the sixth MIMO antenna 704 and transmitted to the first 2.4G Wi-Fi transceiver 706 and the first 5G Wi-Fi transceiver 709 Call as soon converted into a WiFi RF signals as well as being made of a combination in the 1RF router 707, the router 1RF 707 output signal is made to be emitted through the antenna 7MIMO 708.

8, the TV idle band majority carrier MIMO RF signals received by the eighth MIMO antenna 800 are transmitted to the second, third, and fourth remote hub units 608, 613, and 616 through a second MIMORF transceiver 801 are converted into baseband signals and input to the second MIMO majority carrier modem 802. In the second MIMO majority carrier modem 802, demodulation is performed in each of the timings-synchronized modems, 2 network switch 807 is selectively transmitted to the third MIMO majority carrier modem 803, the second 2.4G WiFi transceiver, the second 5G WiFi transceiver and the LAN port after the TCP-IP protocol processing is performed, and the third MIMO multiple carrier The data transmitted to the modem 803 is converted into the TV idle band in the third MIMORF transceiver 804 after the majority carrier MIMO modulation and the converted TV idle band MIMO RF signal is transmitted through the ninth MIMO antenna 805 Radiated, the second 2.4G WiFi The data transmitted to the transceiver 808 and the second 5G WiFi transceiver 811 is converted into a Wi-Fi signal in the 2.4G / 5GHz band and then shared by the second RF router 809 and radiated to the tenth MIMO antenna 810 do.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments.

It is to be understood that the invention is not to be limited to the specific forms thereof which are to be described in the foregoing description, but on the contrary, the intention is to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the invention as defined by the appended claims. .

The operation and effect of the system and method for transmitting high-speed wireless data using a plurality of carriers in the TV idle band according to the present invention will be described as follows.

First, the present invention provides a multi-input multi-output (MIMO) transmission technique and a variety of wireless network topologies of a TV idle band so that high-speed wireless data can be transmitted and received using a TV idle band wireless network Linear and star configurations are possible.

For this purpose, the present invention employs a baseband modem as a multi-carrier and multi-input multi-output (MIMO) baseband modem so that multiple carriers can be transmitted in a TV idle band, A high speed wireless data backhaul method using a TV idle band majority carrier for transmitting a large number of carriers and MIMO transmission can transmit and receive RF signals in a time division manner in a TV idle band radio section, The present invention provides a method for high-speed wireless data transmission.

Also, the present invention provides a method of supporting a timing-synchronized multi-carrier MIMO modem in order to prevent inter-carrier interference between the high-speed wireless data backhaul using the TV idle band majority carriers.

The high-speed wireless data backhaul method using the TV idle band majority carriers applied to the present invention provides a method of operating the MIMO antennas as vertical and horizontal polarizations, respectively, in order to obtain MIMO performance in an LOS (line of sight) environment .

In addition, the ultra high-speed wireless data backhaul method using the TV idle band majority carriers applied to the present invention provides a method in which a network switch is supported in a main hub unit and a remote hub unit to increase data transmission efficiency in a TV idle band.

In addition, the high-speed wireless data backhaul method using the TV idle band majority carrier applied to the present invention provides a method of supporting a TV idle band wireless network with a star topology and a linear topology in order to improve the operation convenience in a TV idle band do.

Hereinafter, the operation and effect of the present invention will be described in more detail.

6 is a diagram illustrating a configuration of a high-speed data backhaul apparatus service using a plurality of carriers in a TV idle band according to an embodiment of the present invention. 6, data transmitted from the TCP-IP network through the second location based DB server 600 is input to the second main hub unit 602 via the second telephone station 601. [ The second main hub unit is as shown in FIG. 7, and the received data is processed by the TCP / IP protocol in the network switch 701. The processed data is optionally transmitted to the third terminal 606 via the radiating or LAN to the first MIMO antenna 603 or the fourth antenna 604. The TV idle band RF signal radiated to the first MIMO antenna 603 is received by the second remote hub unit 608 and the third remote hub unit 613 and is transmitted to the fourth antenna 604 via a WiFi signal Is transmitted to the second terminal (605). The TV idle band RF signal received by the second MIMO antenna 607 of the second remote hub unit 608 is selectively radiated to the fourth MIMO antenna 609 and the fifth antenna 610 via the internal processing, 5 < / RTI > The TV idle band RF signal transmitted to the fourth MIMO antenna 609 is received and processed by the fifth MIMO antenna 615 of the fourth remote hub unit 616. The WiFi signal emitted from the fifth antenna 610 is transmitted to the fourth terminal 611.

The data transmitted from the fourth remote hub unit 616 is radiated to the TV idle band via the fifth MIMO antenna 615. The emitted TV idle band RF signal is received at the fourth MIMO antenna 609 of the second remote hub unit 608. The received signal is selectively radiated into the second MIMO antenna 607 or the fifth antenna 610 in the internal processing or transmitted to the fifth terminal 612 via the LAN port. The WiFi signal radiated to the fifth antenna 610 is transmitted to the fourth terminal 611. The TV idle band RF signal radiated by the second MIMO antenna 607 is received by the second main hub unit 602 via the first MIMO antenna 603. The received data is radiated to the fourth antenna 604 through the internal processing of the second main hub unit 602 and transmitted to the second terminal 605 or transmitted to the second terminal 606 via the LAN port or the WAN port To the second telephone station 601 and connected to the TCP-IP network.

7 is a view illustrating a configuration of a main hub unit according to an embodiment of the present invention. Referring to FIG. 7, the data input at the WAN is input to the first network switch 701 via the WAN interface 700 circuit. In the first network switch 701, a TCP-IP protocol process is performed. The extracted data is selectively transmitted to the first multi-carrier MIMO modem 702, the first 2.4G Wi-Fi transceiver 706, And transmitted to the first 5G WiFi transceiver 709 or to the LAN port. Data transmitted to the first multi-carrier MIMO modem 702 is separated into individual modems for each carrier, and each carrier is modulated. Modems modulated on a carrier-by-carrier basis are mutually timing synchronized. The multi-carrier MIMO signal generated in the first multi-carrier MIMO modem 702 is converted into a TV idle band RF signal in the first MIMO RF transceiver 703. [ The converted RF signal is radiated through a sixth MIMO antenna 704. The data signals transmitted to the first 2.4G Wi-Fi transceiver 706 and the first 5G Wi-Fi transceiver 709 are converted into WiFi RF signals and combined in the first RF router 707. The output signal of the first RF router 707 is radiated through the seventh MIMO antenna 708.

8 is a block diagram of a remote hub unit according to an embodiment of the present invention. 8, the TV idle band majority carrier MIMO RF signal received at the eighth MIMO antenna 800 is converted into a baseband signal at the second MIMORF transceiver 801 and input to the second MIMO majority carrier modem 802. [ In the second MIMO multiple-carrier modem 802, demodulation is performed at each timing-synchronized modem. The demodulated data is optionally transmitted to the third MIMO majority carrier modem 803, the second 2.4G WiFi transceiver, the second 5G WiFi transceiver and the LAN port after the TCP-IP protocol processing is performed at the second network switch 807. The data transmitted to the third MIMO multiple carrier modem 803 is converted from the third MIMORF transceiver 804 to the TV idle band after the majority carrier MIMO modulation. The converted TV idle band MIMO RF signal is radiated through the ninth MIMO antenna 805. The data transmitted to the second 2.4G WiFi transceiver 808 and the second 5G WiFi transceiver 811 is converted into a WiFi signal in the 2.4G / 5GHz band and then shared by the second RF router 809, Lt; / RTI >

9 is a diagram illustrating a multiple carrier time division scheme in a TV idle band according to an embodiment of the present invention. Referring to FIG. 9, the transmission and reception timings of the multiple carriers (carrier 1, carrier 2, and carrier 3) in the TV idle band are simultaneously performed. The downlink time is the time to transmit from the main hub unit 602 to the remote hub units 608 and 613 and the uplink time represents the time to transmit from the remote hub units 608 and 613 to the main hub unit 602 have.

The technical idea of a system and method for high-speed wireless data transmission using a plurality of carriers in the TV idle band according to the present invention is that the same result can be repeatedly practiced. Particularly, by implementing the present invention, I can contribute and it is worth protecting.

Description of the Related Art
600: second location-based DB server 601: second phone station
602: second main hub unit 608: second remote hub unit
613: Third remote hub unit 616: Fourth remote hub unit

Claims (12)

The baseband modem may be a multi-carrier and multi-input multi-output (MIMO) baseband modem so that multiple carriers can be transmitted in the TV idle band, and mutual interference is eliminated by transmission / reception timing synchronization between multiple carrier baseband modems, And a high-speed wireless data backhaul apparatus using TV idle band majority carriers to enable MIMO transmission are provided with a TV idle bandwidth second main hub unit 602, second, third, and fourth remote hubs 602, And a plurality of carrier MIMO baseband modems in which modulation and demodulation are simultaneously performed at synchronized timings between the per-carrier modems in units 608, 613, and 616, and MIMO is supported. System for high speed wireless data transmission using multiple carriers in TV idle band.
The method according to claim 1,
A first MIMO antenna 603 is connected to the second main hub unit 602,
The second and fourth MIMO antennas 607 and 609 are connected to the second remote hub unit 608,
A third MIMO antenna 603 is connected to the third remote hub unit 613,
And a fourth MIMO antenna (615) is connected to the fourth remote hub unit (616). The system for high-speed wireless data transmission using a plurality of carriers in a TV idle band.
The method according to claim 1,
The high-speed wireless data backhaul apparatus using the TV idle band majority carriers,
A multi-carrier MIMO baseband modem that transmits and receives in time-division duplexing in a TV idle band radio network such that a star or linear topology is possible, a MIMO RF transceiver 703, and a MIMO antenna Wherein the system comprises a plurality of carriers in a TV idle band.
The method according to claim 1,
The high-speed wireless data backhaul apparatus using the TV idle band majority carriers,
And a network switch (807) is included in the main hub unit and the remote hub unit so that the LAN can be configured. The system for high-speed wireless data transmission using a plurality of carriers in a TV idle band.
The method according to claim 1,
The high-speed wireless data backhaul apparatus using the TV idle band majority carriers,
The data transmitted from the TCP-IP network through the second location-based DB server 600 is input to the second main hub unit 602 via the second telephone station 601, and the data received from the second main hub unit 602 Data is processed in the network switch 701 of the WAN interface 700 and the processed data is selectively transmitted to the third terminal And the TV idle band RF signal radiated to the first MIMO antenna 603 is received by the second remote hub unit 608 and the third remote hub unit 613 and transmitted to the fourth antenna 604 The WiFi signal is transmitted to the second terminal 605 and the TV idle band RF signal received by the second MIMO antenna 607 of the second remote hub unit 608 is transmitted to the fourth MIMO antenna (609) and the fifth antenna, or transmitted to the fifth terminal (612) via the LAN, and the fourth MIMO The TV idle band RF signal transmitted to the TENA 609 is received and processed by the fifth MIMO antenna 615 of the fourth remote hub unit 616 and the WiFi signal emitted from the fifth antenna 610 is 4 terminal (611). The system according to claim 1, wherein the carrier (611) comprises a plurality of carriers.
The method of claim 5,
The WAN interface (700)
The first network switch 701 performs TCP-IP protocol processing, and the extracted data is selectively transmitted to the first multi-carrier MIMO modem 702 or the first 2.4G Wi-Fi transceiver 706 and the second multi- The data transmitted to the 1 G 5 WiFi transceiver 709 is transmitted to the LAN port and the data transmitted to the first multi-carrier MIMO modem 702 is demultiplexed by a carrier-specific modem, and each carrier is modulated. The multi-carrier MIMO signal generated in the first multi-carrier MIMO modem 702 is converted into the TV idle band RF signal in the first MIMO RF transceiver 703, and the converted RF signal The data signal transmitted to the first 2.4G Wi-Fi transceiver 706 and the first 5G Wi-Fi transceiver 709 is converted into a WiFi RF signal, and is transmitted to the first RF router 707 texture And a first RF router (707) output signal is radiated via a seventh MIMO antenna (708). ≪ Desc / Clms Page number 20 >
The method according to claim 1 or 2,
In the second, third and fourth remote hub units 608, 613 and 616,
The TV idle band majority carrier MIMO RF signal received at the eighth MIMO antenna 800 is converted to a baseband signal at the second MIMORF transceiver 801 and input to the second MIMO majority carrier modem 802 and the second MIMO majority carrier modem 802 The demodulated data is selectively transmitted to the third MIMO majority carrier modem 803 and the second MIMO multiple carrier modem 803 after the TCP-IP protocol processing is performed in the second network switch 807, The data transmitted to the 2.4G WiFi transceiver, the 2 5G WiFi transceiver and the LAN port and the data transmitted to the third MIMO multiple carrier modem 803 is transmitted to the third MIMORF transceiver 804 after the majority carrier MIMO modulation, And the converted TV idle band MIMO RF signal is radiated through the ninth MIMO antenna 805 and the data transmitted to the second 2.4G WiFi transceiver 808 and the second 5G WiFi transceiver 811 is 2.4G / 5GHz band WiFi After the converted signal to the 2RF router 809 is shared by the 10MIMO system for high-speed wireless data transmission using a plurality of carriers in an idle TV band, characterized in that the configuration such that the radiation by the antenna 810.
The baseband modem may be a multi-carrier and multi-input multi-output (MIMO) baseband modem so that multiple carriers can be transmitted in the TV idle band, and mutual interference is eliminated by transmission / reception timing synchronization between multiple carrier baseband modems, And a high-speed wireless data backhaul method using a TV idle band majority carrier to enable MIMO transmission is characterized in that the RF signal is transmitted and received in a time division manner in a TV idle band radio section. In the TV idle band, A method for high speed wireless data transmission.
The method of claim 8,
The high-speed wireless data backhaul method using the TV idle band majority carriers is characterized in that a timing-synchronized multi-carrier MIMO modem is supported in order to prevent many carriers from being interfered. A method for high speed wireless data transmission.
The method of claim 8,
The high-speed wireless data backhaul method using the TV idle band majority carriers uses MIMO antennas as vertical and horizontal polarizations to obtain MIMO performance in a line-of-sight (LOS) environment. For wireless data transmission at high speed.
The method of claim 8,
The high speed wireless data backhaul method using the TV idle band majority carriers is characterized in that a network switch is supported in a main hub unit and a remote hub unit to increase data transmission efficiency in a TV idle band. A method for high speed wireless data transmission using a carrier.
The method of claim 8,
The high-speed wireless data backhaul method using the TV idle band majority carriers is characterized in that a star topology and a linear topology are supported in a TV idle band wireless network in order to improve the operation convenience in a TV idle band, Method for high speed wireless data transmission using multiple carriers.

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