WO2018174433A1 - Apparatus and method for canceling shadow area in next-generation wireless communication system - Google Patents

Apparatus and method for canceling shadow area in next-generation wireless communication system Download PDF

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Publication number
WO2018174433A1
WO2018174433A1 PCT/KR2018/002679 KR2018002679W WO2018174433A1 WO 2018174433 A1 WO2018174433 A1 WO 2018174433A1 KR 2018002679 W KR2018002679 W KR 2018002679W WO 2018174433 A1 WO2018174433 A1 WO 2018174433A1
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signal
optical
wifi
base station
ultra
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PCT/KR2018/002679
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French (fr)
Korean (ko)
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박정석
안영완
이경재
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(주)기산텔레콤
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
    • H04B10/25—Arrangements specific to fibre transmission
    • H04B10/2575—Radio-over-fibre, e.g. radio frequency signal modulated onto an optical carrier
    • H04B10/25752—Optical arrangements for wireless networks
    • H04B10/25753—Distribution optical network, e.g. between a base station and a plurality of remote units
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
    • H04B10/25—Arrangements specific to fibre transmission
    • H04B10/2575—Radio-over-fibre, e.g. radio frequency signal modulated onto an optical carrier
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
    • H04B10/29—Repeaters
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/14—Relay systems
    • H04B7/15—Active relay systems
    • H04B7/155—Ground-based stations
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/14—Relay systems
    • H04B7/15—Active relay systems
    • H04B7/155—Ground-based stations
    • H04B7/15507—Relay station based processing for cell extension or control of coverage area

Definitions

  • the present invention relates to a next generation mobile communication system including a 5th generation (5G) mobile communication system, and more particularly, an apparatus for eliminating the shadow area of a next generation ultra high frequency wireless communication system including an ultra high frequency base station such as a 5G base station. And to a method.
  • 5G 5th generation
  • 5th Generation Mobile Telecommunication is a next generation mobile communication that has about 1,000 times more data capacity and 200 times faster speed than 4G.
  • IMT 2020 International Mobile Telecommunication 2020
  • 5G 5G mobile telecommunications
  • 5G 5G mobile telecommunications
  • 5G mobile communication system should be designed considering four major megatrends such as increasing traffic, increasing number of devices, increasing dependency on cloud computing, and emergence of various 5G-based converged services.
  • various countries and companies have recently proposed basic performance indicators for 5G mobile communication systems, and the ITU-R (Radio communication Sector) Working Party (5P) 5D has been based on these proposals.
  • Eight key performance indicator candidates were derived.
  • Key performance indicators derived from ITU-R WP 5D include user experience data rate, peak data rate, mobility, latency, connection density and energy efficiency. (Energy efficiency), spectrum efficiency, traffic volume density, etc.
  • 5G mobile communication systems have several important features. The most important features are latency and userexperienced data rate.
  • the 5G mobile communication system is designed for mobile communication systems considering end-to-end latency. Very interested in
  • the 5G mobile communication system considers the improvement of user experience data rate as one of the important goals with the big goal of reducing end-to-end latency. To ensure user experienced data rates, 5G mobile communication systems should be able to provide users with gigabit data rates anytime, anywhere.
  • the 5G mobile communication system had a user goal of data expenditure considering the improved cell edge performance. I am trying to solve it.
  • LTE Long Term Evolution
  • LTE Long Term Evolution
  • Low band frequencies have long reach and slow speed, while high band frequencies have a straight forward, resulting in shorter but faster speeds.
  • the 5G base station is expected to have difficulty in designing and constructing a network in serving shadow areas because the radio waves are straight waves.
  • the present invention has been made to solve the above-described problems, and an object thereof is to provide an apparatus and method for eliminating the shadow area of a next generation wireless communication system that can solve the shadow area of an ultra-high frequency base station such as a 5G base station.
  • the ultra-high frequency communication unit for transmitting and receiving (communication) of the ultra-high frequency base station and the ultra-high frequency radio signal, and through the ultra-high frequency communication unit Converts the ultra-high frequency radio signal received from the microwave base station into an optical signal and transmits (downwards) through one or more optical paths, and converts the optical signal received through the one or more optical fiber beams into an ultra-high frequency wireless signal to the ultra-high frequency base station through the microwave communication unit.
  • An AU (Antenna & Donor) apparatus including a first signal converter for transmitting (upward); And a WiFi communication unit for communicating with a user terminal through a WiFi signal, and converts a WiFi signal received from the user terminal through the WiFi communication unit into an optical signal and transmits (upward) through one of the one or more optical paths.
  • One or more access point (AP) devices including a second signal conversion unit for converting the optical signal received through one of the optical paths into a WiFi signal to transmit (downward) to the user terminal through the WiFi communication unit.
  • the high frequency base station may include a 5G base station
  • the high frequency radio signal may include a 5G radio signal.
  • a method for resolving a shadow area of a next generation wireless communication system comprising: (a) transmitting and receiving (communicating) an ultrahigh frequency radio signal with an ultrahigh frequency base station; (b) converting the ultra-high frequency radio signal received from the microwave base station through the step (a) into an optical signal and transmitting (downward) through one or more optical paths and converting the optical signal received through the one or more optical paths into an ultra-high frequency wireless signal Converting and transmitting (upward) to the microwave base station through step (a); (c) communicating with the user terminal through a WiFi signal; And (d) converting a WiFi signal received from the user terminal through the step (c) into an optical signal to transmit (upward) through one of the one or more optical paths and received through one of the one or more optical paths.
  • the method may include converting an optical signal into a WiFi signal and transmitting (downward) to the user terminal through step (c), and the ultra-high frequency radio signal may include a
  • FIG. 1 is a block diagram of an apparatus for eliminating shadow areas in a next generation wireless communication system according to an embodiment of the present invention
  • FIG. 2 is a block diagram of an antenna & donor (AU) device of FIG. 1;
  • FIG. 3 is a block diagram of an access point (AP) device of FIG.
  • FIG. 4 is a flowchart of a method for canceling a shadow area of a next generation wireless communication system according to an embodiment of the present invention.
  • FIG. 1 is a block diagram of an apparatus for eliminating shadow areas in a next generation wireless communication system according to an embodiment of the present invention. As shown in the figure, an antenna & donor (AU) device 20 and an access point (AP) device are shown in FIG. 30 may be included.
  • AU antenna & donor
  • AP access point
  • beamforming of a smart array antenna of a 5G base station 10 is fixed, and a 5G signal is received by a donor antenna of an AU device 20 and converted into an optical signal.
  • AP Access Point
  • the AU device 20 communicates with a 5G base station 10 as an ultrahigh frequency base station 10 using a 5G signal as an ultra high frequency radio signal through an air space, and the other side uses an optical cable with one or more AP devices 30. Can be installed to connect and communicate via
  • the AP device 30 communicates with the AU device 20 through an optical cable and communicates with the user terminal (not shown) by using a WiFi signal through an air space. Can be installed.
  • the user terminal represents a mobile communication terminal of the user, and may include, for example, a mobile communication terminal capable of voice communication, video communication, data communication, and internet communication, a PDA, a smart phone, a tablet PC, and the like.
  • the 5G base station service has difficulty in network design and expansion due to the propagation of radio waves
  • the 5G base station 10 is used as an access network and an optical line is provided when the service area is extended.
  • the WIFI service By using the WIFI service by placing the AP device 30 at the point to be serviced using, it can effectively service in the shaded area caused by the straight wave (mm wave) when designing and expanding the 5G network.
  • FIG. 2 is a block diagram of the antenna & donor (AU) device 20 of FIG. 1 and may include an ultra-high frequency communication unit 21 and a first signal converter 23, as shown in the figure.
  • AU antenna & donor
  • the ultrahigh frequency communication unit 21 transmits and receives (communicates) a 5G signal as a high frequency radio signal with a 5G base station 10 as a high frequency base station through a donor antenna, and receives a downlink signal from the 5G base station 10 through a donor antenna. Downlink transmission may be performed, and an uplink signal from the user terminal may be transmitted through a donor antenna to uplink transmission to the base station 10.
  • the first signal converter 23 converts a 5G signal as an ultra-high frequency radio signal into an optical signal on a downward basis, and converts an optical signal into a 5G signal by an up-reference, and uses a 5G as an ultra-high frequency base station through the microwave communication unit 21.
  • the 5G signal received from the base station 10 is converted into an optical signal and transmitted (downward) through at least one optical cable (Optic Cable), and the ultra-high frequency communication unit 21 by converting the optical signal received through the at least one optical fiber into 5G signal. ) May transmit (upward) to the 5G base station 10.
  • FIG. 3 is a block diagram of an access point (AP) device 30 of FIG. 1, and may include a WiFi communication unit 31 and a second signal conversion unit 33 as shown in the figure.
  • AP access point
  • the WiFi communication unit 31 is for transmitting / receiving (communicating) a WiFi signal with a user terminal through a WiFi service antenna, receiving an upstream signal from the user terminal through a service antenna, and transmitting the signal upward to the AU device 20 and to the AU.
  • the downlink signal from the device 20 may be radiated to the WiFi service area through the service antenna and transmitted downward to the user terminal.
  • the second signal converter 33 converts a WiFi signal into an optical signal on an uplink basis and converts an optical signal into a WiFi signal on a downlink basis.
  • the second signal converter 33 converts the WiFi signal into an WiFi signal.
  • the transmission may be transmitted downward to the user terminal through the WiFi communication unit 31.
  • FIG. 4 is a flowchart illustrating a method for eliminating a shadow area of a next generation wireless communication system according to an exemplary embodiment of the present invention, which will be described in parallel with the operation of a corresponding device since it is performed by the devices 10, 20, and 30 of FIGS. .
  • the 5G base station 10 radiates a 5G radio signal (S401), and the AU device 20 receives the 5G radio signal radiated from the 5G base station 10 in step S401 and converts it into an optical signal (S403).
  • the converted optical signal is transmitted to at least one AP device 30 through at least one optical path (S405).
  • the AP device 30 receives the optical signal transmitted from the AU device 20 in step S405 and converts the optical signal into a WiFi signal (S407), and transmits the converted WiFi signal to a user terminal in the corresponding WiFi service area. .
  • the AP device 30 receives the WiFi signal transmitted from the user terminal in the corresponding WiFi service area (S411), converts the received WiFi signal into an optical signal (S413), and transmits it to the AU device 20 through the optical path. (S415). Subsequently, the AU device 20 converts the optical signal received from the AP device 30 into a 5G wireless signal in step S415 (S417), and transmits the converted 5G wireless signal to the 5G base station 10 (S419). .
  • a shaded area is expected to occur due to a straight wave (mm wave) when designing and expanding a 5th generation (5G) network. Can service.
  • mm wave straight wave
  • 5G 5th generation
  • the network design and expansion due to the effect of the network configuration according to the present invention It can effectively contribute to improving the quality of 5G services.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

Disclosed is an apparatus for canceling a shadow area of a next-generation wireless communication system, comprising: an antenna & donor (AU) device including an ultrahigh frequency communication unit for allowing the transmission/reception (communication) of an ultrahigh frequency wireless signal with an ultrahigh frequency base station, and a first signal conversion unit for converting the ultrahigh frequency wireless signal, which has been received from the ultrahigh frequency base station through the ultrahigh frequency communication unit, into an optical signal and performing (downlink) transmission on the same through one or more optical lines, and converting an optical signal, which has been received through the one or more optical lines, into an ultrahigh frequency wireless signal and performing transmission (uplink) on the same to the ultrahigh frequency base station through the ultrahigh frequency communication unit; and one or more access point (AP) devices including a WiFi communication unit for communicating with a user terminal through a WiFi signal, and a second signal conversion unit for converting a WiFi signal, which has been received from the user terminal through the WiFi communication unit, into an optical signal and performing transmission (uplink) on the same through one of the one or more optical lines, and converting an optical signal, which has been received through one of the one or more optical lines, into a WiFi signal and performing transmission (downlink) on the same to the user terminal through the WiFi communication unit.

Description

차세대 무선 통신 시스템의 음영 지역 해소를 위한 장치 및 방법Apparatus and method for eliminating shadow area of next generation wireless communication system
본 발명은 5세대(5th Generation: 5G) 이동통신 시스템을 포함하는 차세대 이동통신 시스템에 관한 것으로, 보다 상세하게는 5G 기지국과 같은 초고주파 기지국을 포함하는 차세대 초고주파 무선 통신 시스템의 음영 지역 해소를 위한 장치 및 방법에 관한 것이다.The present invention relates to a next generation mobile communication system including a 5th generation (5G) mobile communication system, and more particularly, an apparatus for eliminating the shadow area of a next generation ultra high frequency wireless communication system including an ultra high frequency base station such as a 5G base station. And to a method.
일반적으로, 5세대 이동통신 기술(5th Generation Mobile Telecommunication)은 4G 대비 데이터 용량은 약 1,000배 많고 속도는 200배 빠른 차세대 이동통신이다. IMT 2020(International Mobile Telecommunication 2020)은 국제전기통신연합(International Telecommunication Union, )에서 2020년 상용화를 목표로 표준화 계획에 들어간 5세대 이동통신(5G)의 정식 명칭이다. 5G에 대한 관심과 국가간, 기업간 개발 경쟁이 치열해지고 있다.In general, 5th Generation Mobile Telecommunication is a next generation mobile communication that has about 1,000 times more data capacity and 200 times faster speed than 4G. IMT 2020 (International Mobile Telecommunication 2020) is the official name of the 5G mobile telecommunications (5G) that has entered into a standardization plan aimed at commercialization by the International Telecommunication Union (2020). Interest in 5G and competition for development among countries and companies are intensifying.
5G 이동통신 시스템은 기본적으로 트래픽 증가, 디바이스수 증가, 클라우드 컴퓨팅 의존성 증가, 다양한 5G기반 융합서비스 등장 등 4가지 주요 메가트렌드들을 필수적으로 고려하여 설계되어야 한다. 이러한 사항들을 고려하여 최근 다양한 나라와 회사들에서 5G 이동통신 시스템을 위한 기본 성능지표들에 대해서 제안하였으며, ITU-R(Radio communication Sector) WP(Working Party) 5D에서는 이러한 제안들을 기반으로 현재까지 총 8개의 핵심 성능지표 후보를 도출하였다.Basically, 5G mobile communication system should be designed considering four major megatrends such as increasing traffic, increasing number of devices, increasing dependency on cloud computing, and emergence of various 5G-based converged services. Considering these issues, various countries and companies have recently proposed basic performance indicators for 5G mobile communication systems, and the ITU-R (Radio communication Sector) Working Party (5P) 5D has been based on these proposals. Eight key performance indicator candidates were derived.
ITU-R WP 5D에서 도출된 핵심 성능지표들은 userexperience data rate(체감 전송률), peak data rate(최대 전송률), mobility(이동 속도), latency(전송 지연), connection density(연결기기 밀도), energy efficiency(에너지 효율), spectrum efficiency(주파수 효율), traffic volume density(면적당 용량) 등이다.Key performance indicators derived from ITU-R WP 5D include user experience data rate, peak data rate, mobility, latency, connection density and energy efficiency. (Energy efficiency), spectrum efficiency, traffic volume density, etc.
기존의 4G 이동통신 시스템과 달리 5G 이동통신 시스템은 여러 가지 중요한 특징들을 가지고 있다. 특히 가장 중요한 특징으로는 latency와 userexperienced data rate가 있다. 첫째로, 기존의 이동통신 시스템이 대부분 단말의 peak data rate 향상에만 초점을 맞추어 연구를 진행해 왔었던 것과는 달리, 5G 이동통신 시스템은 end-to-end latency(종단간 지연)를 고려한 이동통신 시스템 설계에 매우 큰 관심을 가지고 있다.Unlike conventional 4G mobile communication systems, 5G mobile communication systems have several important features. The most important features are latency and userexperienced data rate. First, unlike the existing mobile communication systems, which have been focused on improving the peak data rate of most terminals, the 5G mobile communication system is designed for mobile communication systems considering end-to-end latency. Very interested in
미래에는 증강현실, 가상 현실, 실시간 온라인게임 등과 같은 다양한 실시간 인터랙티브 멀티미디어 서비스가 증가할 것이다. 이러한 서비스를 사용하는 사용자들이 자연스러운 인터랙션을 경험하기 위해서는 저지연 5G 무선통신 서비스의 제공이 꼭 필요하다.In the future, various real-time interactive multimedia services such as augmented reality, virtual reality, and real-time online games will increase. For users using these services to experience natural interaction, it is necessary to provide low latency 5G wireless communication service.
또한, 5G 이동통신 시스템은 end-to-end latency 감소라는 큰 목표와 함께 userexperience data rate(체감 전송률) 향상을 중요한 목표 중 하나로 고려하고 있다. user experienced data rate의 보장을 위하여 5G 이동통신시스템은 어느 시간에, 어디에서든지 gigabit data rate를 사용자들에게 제공해 줄 수 있어야 한다.In addition, the 5G mobile communication system considers the improvement of user experience data rate as one of the important goals with the big goal of reducing end-to-end latency. To ensure user experienced data rates, 5G mobile communication systems should be able to provide users with gigabit data rates anytime, anywhere.
기존의 4G까지의 이동통신 시스템이 cell edge 사용자들 성능 저하라는 큰 문제에 대한 근본적인 해결책을 제시하고 있지 못했었기 때문에, 5G 이동통신 시스템은 cell edge 성능 향상을 고려한 userexperienced data rate를 중요 목표과제로 두고 해결하고자 노력하고 있다.Since the existing mobile communication systems up to 4G did not provide a fundamental solution to the big problem of poor performance of cell edge users, the 5G mobile communication system had a user goal of data expenditure considering the improved cell edge performance. I am trying to solve it.
2GHz 이하를 사용하는 4G 롱텀에볼루션(LTE)과 달리 28GHz의 초고대역 주파수를 사용한다. 이로 인해 LTE보다 빠른 속도로 초고선명 영화를 1초 만에 전달할 수 있다. 저대역 주파수는 도달거리가 길고 속도는 느린 반면 고대역 주파수는 직진성이 강해 도달거리는 짧지만 속도는 빠르다.Unlike 4G Long Term Evolution (LTE), which uses less than 2GHz, it uses an ultra-high frequency of 28GHz. This allows ultra-high definition movies to be delivered in less than a second, faster than LTE. Low band frequencies have long reach and slow speed, while high band frequencies have a straight forward, resulting in shorter but faster speeds.
따라서, 5G(초고주파) 기지국은 전파가 직진파이기 때문에 음영지역을 서비스하는데 있어서 망 설계 및 구성에 어려움이 있을 것으로 판단된다.Therefore, the 5G base station is expected to have difficulty in designing and constructing a network in serving shadow areas because the radio waves are straight waves.
본 발명은 전술한 문제점을 해결하기 위한 것으로, 그 목적은 5G 기지국과 같은 초고주파 기지국의 음영지역을 해소할 수 있도록 하는 차세대 무선 통신 시스템의 음영 지역 해소를 위한 장치 및 방법을 제공하는 것이다.SUMMARY OF THE INVENTION The present invention has been made to solve the above-described problems, and an object thereof is to provide an apparatus and method for eliminating the shadow area of a next generation wireless communication system that can solve the shadow area of an ultra-high frequency base station such as a 5G base station.
전술한 목적을 달성하기 위하여 본 발명의 일 측면에 따른 차세대 무선 통신 시스템의 음영 지역 해소를 위한 장치는, 초고주파 기지국과 초고주파 무선 신호를 송수신(통신)하기 위한 초고주파 통신부, 및 상기 초고주파 통신부를 통해 상기 초고주파 기지국으로부터 수신된 초고주파 무선 신호를 광신호로 변환하여 하나 이상의 광선로를 통해 (하향) 송신하고 상기 하나 이상의 광선로를 통해 수신된 광신호를 초고주파 무선 신호로 변환하여 상기 초고주파 통신부를 통해 상기 초고주파 기지국으로 (상향) 송신하기 위한 제1 신호변환부를 포함하는 AU(Antenna & Donor)장치; 및 사용자 단말과 WiFi 신호로 통신하기 위한 WiFi 통신부, 및 상기 WiFi 통신부를 통해 상기 사용자 단말로부터 수신된 WiFi 신호를 광신호로 변환하여 상기 하나 이상의 광선로 중 하나를 통해 (상향) 송신하고 상기 하나 이상의 광선로 중 하나를 통해 수신된 광신호를 WiFi 신호로 변환하여 상기 WiFi 통신부를 통해 상기 사용자 단말로 (하향) 송신하기 위한 제2 신호변환부를 포함하는 하나 이상의 AP(Access Point)장치를 포함할 수 있고, 상기 초고주파 기지국은 5G 기지국을 포함할 수 있으며, 상기 초고주파 무선 신호는 5G 무선 신호를 포함할 수 있다.In order to achieve the above object, the apparatus for eliminating the shadow area of the next-generation wireless communication system according to an aspect of the present invention, the ultra-high frequency communication unit for transmitting and receiving (communication) of the ultra-high frequency base station and the ultra-high frequency radio signal, and through the ultra-high frequency communication unit Converts the ultra-high frequency radio signal received from the microwave base station into an optical signal and transmits (downwards) through one or more optical paths, and converts the optical signal received through the one or more optical fiber beams into an ultra-high frequency wireless signal to the ultra-high frequency base station through the microwave communication unit. An AU (Antenna & Donor) apparatus including a first signal converter for transmitting (upward); And a WiFi communication unit for communicating with a user terminal through a WiFi signal, and converts a WiFi signal received from the user terminal through the WiFi communication unit into an optical signal and transmits (upward) through one of the one or more optical paths. One or more access point (AP) devices including a second signal conversion unit for converting the optical signal received through one of the optical paths into a WiFi signal to transmit (downward) to the user terminal through the WiFi communication unit. The high frequency base station may include a 5G base station, and the high frequency radio signal may include a 5G radio signal.
전술한 목적을 달성하기 위하여 본 발명의 다른 측면에 따른 차세대 무선 통신 시스템의 음영 지역 해소를 위한 방법은, (a) 초고주파 기지국과 초고주파 무선 신호를 송수신(통신)하기 위한 단계; (b) 상기 단계 (a)를 통해 상기 초고주파 기지국으로부터 수신된 초고주파 무선 신호를 광신호로 변환하여 하나 이상의 광선로를 통해 (하향) 송신하고 상기 하나 이상의 광선로를 통해 수신된 광신호를 초고주파 무선 신호로 변환하여 상기 단계 (a)를 통해 상기 초고주파 기지국으로 (상향) 송신하기 위한 단계; (c) 사용자 단말과 WiFi 신호로 통신하기 위한 단계; 및 (d) 상기 단계 (c)를 통해 상기 사용자 단말로부터 수신된 WiFi 신호를 광신호로 변환하여 상기 하나 이상의 광선로 중 하나를 통해 (상향) 송신하고 상기 하나 이상의 광선로 중 하나를 통해 수신된 광신호를 WiFi 신호로 변환하여 상기 단계 (c)를 통해 상기 사용자 단말로 (하향) 송신하기 위한 단계를 포함할 수 있고, 상기 초고주파 무선 신호는 5G 무선 신호를 포함할 수 있다.According to another aspect of the present invention, there is provided a method for resolving a shadow area of a next generation wireless communication system, the method comprising: (a) transmitting and receiving (communicating) an ultrahigh frequency radio signal with an ultrahigh frequency base station; (b) converting the ultra-high frequency radio signal received from the microwave base station through the step (a) into an optical signal and transmitting (downward) through one or more optical paths and converting the optical signal received through the one or more optical paths into an ultra-high frequency wireless signal Converting and transmitting (upward) to the microwave base station through step (a); (c) communicating with the user terminal through a WiFi signal; And (d) converting a WiFi signal received from the user terminal through the step (c) into an optical signal to transmit (upward) through one of the one or more optical paths and received through one of the one or more optical paths. The method may include converting an optical signal into a WiFi signal and transmitting (downward) to the user terminal through step (c), and the ultra-high frequency radio signal may include a 5G radio signal.
도 1은 본 발명의 실시예에 따른 차세대 무선 통신 시스템의 음영 지역 해소를 위한 장치의 구성도, 1 is a block diagram of an apparatus for eliminating shadow areas in a next generation wireless communication system according to an embodiment of the present invention;
도 2는 도 1의 AU(Antenna & Donor)장치의 블록 구성도,FIG. 2 is a block diagram of an antenna & donor (AU) device of FIG. 1;
도 3은 도 1의 AP(Access Point)장치의 블록 구성도,3 is a block diagram of an access point (AP) device of FIG.
도 4는 본 발명의 실시예에 따른 차세대 무선 통신 시스템의 음영 지역 해소를 위한 방법의 흐름도이다.4 is a flowchart of a method for canceling a shadow area of a next generation wireless communication system according to an embodiment of the present invention.
이하, 첨부도면을 참조하여 본 발명의 실시예에 대해 구체적으로 설명한다.Hereinafter, with reference to the accompanying drawings will be described in detail an embodiment of the present invention.
도 1은 본 발명의 실시예에 따른 차세대 무선 통신 시스템의 음영 지역 해소를 위한 장치의 구성도로, 동 도면에 도시된 바와 같이, AU(Antenna & Donor)장치(20) 및 AP(Access Point)장치(30)를 포함할 수 있다.1 is a block diagram of an apparatus for eliminating shadow areas in a next generation wireless communication system according to an embodiment of the present invention. As shown in the figure, an antenna & donor (AU) device 20 and an access point (AP) device are shown in FIG. 30 may be included.
도 1을 보면, 5G 기지국(10)의 안테나(Smart array Antenna)의 빔 포밍(Beam forming)을 고정하고, AU 장치(20)의 도너 안테나(Donor Antenna)에서 5G 신호를 수신하여 광 신호로 변환 후 광선로를 통해 각각의 AP(Access Point)(30) 장치로 광 전송함으로써, 5G 신호(28GHz)의 전파 특성상 멀리 가지 못하는 단점을 극복하고 기지국 용량을 더욱 효율적으로 사용할 수 있다.Referring to FIG. 1, beamforming of a smart array antenna of a 5G base station 10 is fixed, and a 5G signal is received by a donor antenna of an AU device 20 and converted into an optical signal. By optically transmitting to each AP (Access Point) device 30 through the back-light path, it is possible to overcome the disadvantage that the propagation characteristics of the 5G signal (28 GHz) does not go far and use the base station capacity more efficiently.
AU 장치(20)는 일 측은 초고주파 기지국으로서의 5G 기지국(10)과 에어 공간을 통해 초고주파 무선 신호로서의 5G 신호를 이용하여 통신하고 또한 타 측은 하나 이상의 AP 장치(30)와 광선로(Optic Cable)를 통해 연결되어 통신하도록 설치할 수 있다.The AU device 20 communicates with a 5G base station 10 as an ultrahigh frequency base station 10 using a 5G signal as an ultra high frequency radio signal through an air space, and the other side uses an optical cable with one or more AP devices 30. Can be installed to connect and communicate via
AP 장치(30)는 일 측은 전술한 바와 같이 AU 장치(20)와 광선로(Optic Cable)를 통해 연결되어 통신하고 또한 타 측은 사용자 단말(미도시)과 에어 공간을 통해 WiFi 신호를 이용하여 통신하도록 설치할 수 있다.As described above, the AP device 30 communicates with the AU device 20 through an optical cable and communicates with the user terminal (not shown) by using a WiFi signal through an air space. Can be installed.
사용자 단말은 사용자의 이동 통신 단말을 나타내는 것으로, 예를 들어, 음성 통신, 영상 통신, 데이터 통신, 및 인터넷 통신 등이 가능한 이동통신 단말기, PDA, 스마트 폰, 테블릿 PC 등을 포함할 수 있다.The user terminal represents a mobile communication terminal of the user, and may include, for example, a mobile communication terminal capable of voice communication, video communication, data communication, and internet communication, a PDA, a smart phone, a tablet PC, and the like.
5세대(초고주파) 기지국 서비스는 전파의 직진성으로 인해 망 설계 및 확장의 어려움이 있으나, 도 1의 실시예에 따르면 5G 기지국(10)은 액세스(Access)망으로 활용하며 서비스 영역을 확장 시 광 선로를 이용하여 서비스 하고자 하는 지점에 AP장치(30)를 두어 WIFI서비스를 이용하도록 함으로써, 5G 망 설계 및 확장 시 직진파(mm Wave)로 인해 발생되는 음영지역에도 효과적으로 서비스 할 수 있다.Although the 5G base station service has difficulty in network design and expansion due to the propagation of radio waves, according to the embodiment of FIG. 1, the 5G base station 10 is used as an access network and an optical line is provided when the service area is extended. By using the WIFI service by placing the AP device 30 at the point to be serviced using, it can effectively service in the shaded area caused by the straight wave (mm wave) when designing and expanding the 5G network.
도 2는 도 1의 AU(Antenna & Donor)장치(20)의 블록 구성도로, 동 도면에 도시된 바와 같이, 초고주파 통신부(21) 및 제1 신호 변환부(23)를 포함할 수 있다.FIG. 2 is a block diagram of the antenna & donor (AU) device 20 of FIG. 1 and may include an ultra-high frequency communication unit 21 and a first signal converter 23, as shown in the figure.
초고주파 통신부(21)는 도너 안테나를 통해 초고주파 기지국으로서의 5G 기지국(10)과 초고주파 무선 신호로서의 5G 신호를 송수신(통신)하기 위한 것으로, 5G 기지국(10)으로부터의 하향 신호를 도너 안테나를 통해 수신하여 하향 전송할 수 있도록 하고 사용자 단말로부터의 상향 신호를 도너 안테나를 통해 송신하여 기지국(10) 측으로 상향 전송할 수 있도록 할 수 있다.The ultrahigh frequency communication unit 21 transmits and receives (communicates) a 5G signal as a high frequency radio signal with a 5G base station 10 as a high frequency base station through a donor antenna, and receives a downlink signal from the 5G base station 10 through a donor antenna. Downlink transmission may be performed, and an uplink signal from the user terminal may be transmitted through a donor antenna to uplink transmission to the base station 10.
제1 신호 변환부(23)는 하향 기준으로 초고주파 무선 신호로서의 5G 신호를 광신호로 변환하고 상향 기준으로는 광신호를 5G 신호로 변환하기 위한 것으로, 초고주파 통신부(21)를 통해 초고주파 기지국으로서의 5G 기지국(10)으로부터 수신된 5G 신호를 광신호로 변환하여 하나 이상의 광선로(Optic Cable)를 통해 (하향) 송신하고, 하나 이상의 광선로를 통해 수신된 광신호를 5G 신호로 변환하여 초고주파 통신부(21)를 통해 5G 기지국(10)으로 (상향) 송신할 수 있다. The first signal converter 23 converts a 5G signal as an ultra-high frequency radio signal into an optical signal on a downward basis, and converts an optical signal into a 5G signal by an up-reference, and uses a 5G as an ultra-high frequency base station through the microwave communication unit 21. The 5G signal received from the base station 10 is converted into an optical signal and transmitted (downward) through at least one optical cable (Optic Cable), and the ultra-high frequency communication unit 21 by converting the optical signal received through the at least one optical fiber into 5G signal. ) May transmit (upward) to the 5G base station 10.
도 3은 도 1의 AP(Access Point)장치(30)의 블록 구성도로, 동 도면에 도시된 바와 같이, WiFi 통신부(31) 및 제2 신호 변환부(33)를 포함할 수 있다.3 is a block diagram of an access point (AP) device 30 of FIG. 1, and may include a WiFi communication unit 31 and a second signal conversion unit 33 as shown in the figure.
WiFi 통신부(31)는 WiFi 서비스 안테나를 통해 사용자 단말과 WiFi 신호를 송수신(통신)하기 위한 것으로, 사용자 단말로부터의 상향 신호를 서비스 안테나를 통해 수신하여 AU 장치(20) 측으로 상향 전송할 수 있도록 하고 AU 장치(20)로부터의 하향 신호를 서비스안테나를 통해 WiFi 서비스 영역에 방사하여 사용자 단말 측으로 하향 전송할 수 있다.The WiFi communication unit 31 is for transmitting / receiving (communicating) a WiFi signal with a user terminal through a WiFi service antenna, receiving an upstream signal from the user terminal through a service antenna, and transmitting the signal upward to the AU device 20 and to the AU. The downlink signal from the device 20 may be radiated to the WiFi service area through the service antenna and transmitted downward to the user terminal.
제2 신호 변환부(33)는 상향 기준으로 WiFi 신호를 광신호로 변환하고 하향 기준으로는 광신호를 WiFi 신호로 변환하기 위한 것으로, 예를 들어, 상향 신호 처리 시에는 WiFi 통신부(31)를 통해 사용자 단말로부터 수신된 WiFi 신호를 광신호로 변환하여 하나 이상의 광선로 중 하나를 통해 상향 송신할 수 있고, 하향 신호 처리 시에는 하나 이상의 광선로 중 하나를 통해 수신된 광신호를 WiFi 신호로 변환하여 WiFi 통신부(31)를 통해 사용자 단말로 하향 송신할 수 있다. The second signal converter 33 converts a WiFi signal into an optical signal on an uplink basis and converts an optical signal into a WiFi signal on a downlink basis. For example, the second signal converter 33 converts the WiFi signal into an WiFi signal. Through converting the WiFi signal received from the user terminal to the optical signal through one of the one or more optical paths, and when processing the downlink, converts the optical signal received through one of the one or more optical paths to a WiFi signal The transmission may be transmitted downward to the user terminal through the WiFi communication unit 31.
도 4는 본 발명의 실시예에 따른 차세대 무선 통신 시스템의 음영 지역 해소를 위한 방법의 흐름도로, 도 1-3의 장치(10,20,30)에서 수행되므로 해당 장치의 동작과 병행하여 설명한다.FIG. 4 is a flowchart illustrating a method for eliminating a shadow area of a next generation wireless communication system according to an exemplary embodiment of the present invention, which will be described in parallel with the operation of a corresponding device since it is performed by the devices 10, 20, and 30 of FIGS. .
먼저, 하향 신호 처리 과정에 대해 설명한다.First, a downlink signal processing process will be described.
5G 기지국(10)은 5G 무선 신호를 방사하고(S401), AU 장치(20)는 단계 S401에서 5G 기지국(10)으로부터 방사된 5G 무선 신호를 수신하여 광신호로 변환한 후(S403), 그 변환된 광신호를 하나 이상의 광선로를 통하여 하나 이상의 AP 장치(30)로 전송한다(S405). 이어, AP 장치(30)는 단계 S405에서 AU 장치(20)로부터 전송된 광신호를 수신하여 WiFi 신호로 변환하고(S407), 그 변환된 WiFi 신호를 해당 WiFi 서비스 영역내에 있는 사용자 단말로 전송한다.The 5G base station 10 radiates a 5G radio signal (S401), and the AU device 20 receives the 5G radio signal radiated from the 5G base station 10 in step S401 and converts it into an optical signal (S403). The converted optical signal is transmitted to at least one AP device 30 through at least one optical path (S405). Subsequently, the AP device 30 receives the optical signal transmitted from the AU device 20 in step S405 and converts the optical signal into a WiFi signal (S407), and transmits the converted WiFi signal to a user terminal in the corresponding WiFi service area. .
다음, 상향 신호 처리 과정에 대해 설명한다.Next, an uplink signal processing process will be described.
AP 장치(30)는 해당 WiFi 서비스 영역내의 사용자 단말로부터 전송된 WiFi 신호를 수신하고(S411), 그 수신된 WiFi 신호를 광신호로 변환하여(S413) 광선로를 통해 AU 장치(20)로 전송한다(S415). 이어, AU 장치(20)는 단계 S415에서 AP 장치(30)로부터 수신된 광신호를 5G 무선 신호로 변환하고(S417), 그 변환된 5G 무선 신호를 5G 기지국(10)으로 전송한다(S419).The AP device 30 receives the WiFi signal transmitted from the user terminal in the corresponding WiFi service area (S411), converts the received WiFi signal into an optical signal (S413), and transmits it to the AU device 20 through the optical path. (S415). Subsequently, the AU device 20 converts the optical signal received from the AP device 30 into a 5G wireless signal in step S415 (S417), and transmits the converted 5G wireless signal to the 5G base station 10 (S419). .
이상에서 설명한 바와 같이 본 발명의 다양한 측면에 따르면, 5세대(5G) 망 설계 및 확장 시 직진파(mm Wave)로 인해 음영지역이 발생할 것으로 예상되며 이때 본 발명의 구성을 이용하여 음영지역을 효과적으로 서비스 할 수 있다.As described above, according to various aspects of the present invention, a shaded area is expected to occur due to a straight wave (mm wave) when designing and expanding a 5th generation (5G) network. Can service.
즉, 본 발명을 활용하면 5G 기지국을 포함하는 초고주파 기지국 서비스 시 초고주파의 직진파 특성으로 인해 음영지역을 효과적으로 해소하지 못하는 문제가 예상되나, 본 발명에 따른 망 구성의 효과로 인해 망 설계 및 확장을 효과적으로 하여 5G 서비스의 품질을 향상하는데 기여할 수 있다.That is, when utilizing the present invention, when the service of the ultra-high frequency base station including the 5G base station is expected to effectively solve the shadow area due to the characteristics of the high frequency straight wave, the network design and expansion due to the effect of the network configuration according to the present invention It can effectively contribute to improving the quality of 5G services.

Claims (4)

  1. 초고주파 기지국과 초고주파 무선 신호를 송수신(통신)하기 위한 초고주파 통신부, 및 상기 초고주파 통신부를 통해 상기 초고주파 기지국으로부터 수신된 초고주파 무선 신호를 광신호로 변환하여 하나 이상의 광선로를 통해 (하향) 송신하고 상기 하나 이상의 광선로를 통해 수신된 광신호를 초고주파 무선 신호로 변환하여 상기 초고주파 통신부를 통해 상기 초고주파 기지국으로 (상향) 송신하기 위한 제1 신호변환부를 포함하는 AU(Antenna & Donor)장치; 및An ultra-high frequency communication unit for transmitting / receiving (communicating) an ultra-high frequency base station and an ultra-high frequency radio signal, and converting the ultra-high frequency radio signal received from the ultra-high frequency base station through the ultra-high frequency communication unit into an optical signal to transmit (downward) through one or more optical paths and An AU (Antenna & Donor) apparatus including a first signal converter for converting the optical signal received through the optical path into an ultra-high frequency radio signal and transmitting (upwardly) to the microwave base station through the microwave communication unit; And
    사용자 단말과 WiFi 신호로 통신하기 위한 WiFi 통신부, 및 상기 WiFi 통신부를 통해 상기 사용자 단말로부터 수신된 WiFi 신호를 광신호로 변환하여 상기 하나 이상의 광선로 중 하나를 통해 (상향) 송신하고 상기 하나 이상의 광선로 중 하나를 통해 수신된 광신호를 WiFi 신호로 변환하여 상기 WiFi 통신부를 통해 상기 사용자 단말로 (하향) 송신하기 위한 제2 신호변환부를 포함하는 하나 이상의 AP(Access Point)장치;A WiFi communication unit for communicating with a user terminal through a WiFi signal, and converts a WiFi signal received from the user terminal through the WiFi communication unit into an optical signal to transmit (upwardly) through one of the one or more optical paths and transmit the optical signal. At least one access point (AP) device including a second signal conversion unit for converting an optical signal received through one of the paths into a WiFi signal and transmitting (downward) to the user terminal through the WiFi communication unit;
    를 포함하는 차세대 무선 통신 시스템의 음영 지역 해소를 위한 장치.Apparatus for solving the shadow area of the next-generation wireless communication system comprising a.
  2. 제1항에 있어서,The method of claim 1,
    상기 초고주파 기지국은 5G 기지국을 포함하고, 상기 초고주파 무선 신호는 5G 무선 신호를 포함하는 것을 특징으로 하는 차세대 무선 통신 시스템의 음영 지역 해소를 위한 장치.The ultra-high frequency base station includes a 5G base station, and the ultra-high frequency radio signal comprises a 5G radio signal, the apparatus for eliminating the shadow area of the next generation wireless communication system.
  3. (a) 초고주파 기지국과 초고주파 무선 신호를 송수신(통신)하기 위한 단계;  (a) transmitting and receiving (communicating) an ultrahigh frequency radio signal with an ultrahigh frequency base station;
    (b) 상기 단계 (a)를 통해 상기 초고주파 기지국으로부터 수신된 초고주파 무선 신호를 광신호로 변환하여 하나 이상의 광선로를 통해 (하향) 송신하고 상기 하나 이상의 광선로를 통해 수신된 광신호를 초고주파 무선 신호로 변환하여 상기 단계 (a)를 통해 상기 초고주파 기지국으로 (상향) 송신하기 위한 단계; (b) converting the ultra-high frequency radio signal received from the microwave base station through the step (a) into an optical signal and transmitting (downward) through one or more optical paths and converting the optical signal received through the one or more optical paths into an ultra-high frequency wireless signal Converting and transmitting (upward) to the microwave base station through step (a);
    (c) 사용자 단말과 WiFi 신호로 통신하기 위한 단계; 및 (c) communicating with the user terminal through a WiFi signal; And
    (d) 상기 단계 (c)를 통해 상기 사용자 단말로부터 수신된 WiFi 신호를 광신호로 변환하여 상기 하나 이상의 광선로 중 하나를 통해 (상향) 송신하고 상기 하나 이상의 광선로 중 하나를 통해 수신된 광신호를 WiFi 신호로 변환하여 상기 단계 (c)를 통해 상기 사용자 단말로 (하향) 송신하기 위한 단계; (d) converting the WiFi signal received from the user terminal through the step (c) into an optical signal and transmitting (upwardly) through one of the one or more optical paths, and receiving the optical signal received through one of the one or more optical paths. Converting a signal into a WiFi signal and transmitting (downward) to the user terminal through step (c);
    를 포함하는 차세대 무선 통신 시스템의 음영 지역 해소를 위한 방법.Method for eliminating the shadow area of the next-generation wireless communication system comprising a.
  4. 제3항에 있어서,The method of claim 3,
    상기 초고주파 무선 신호는 5G 무선 신호를 포함하는 차세대 무선 통신 시스템의 음영 지역 해소를 위한 방법.And the ultra-high frequency wireless signal comprises a 5G wireless signal.
PCT/KR2018/002679 2017-03-21 2018-03-07 Apparatus and method for canceling shadow area in next-generation wireless communication system WO2018174433A1 (en)

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