WO2025018952A1 - Répéteur intelligent fonctionnant en modes réflexion et relais - Google Patents

Répéteur intelligent fonctionnant en modes réflexion et relais Download PDF

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Publication number
WO2025018952A1
WO2025018952A1 PCT/TR2023/051472 TR2023051472W WO2025018952A1 WO 2025018952 A1 WO2025018952 A1 WO 2025018952A1 TR 2023051472 W TR2023051472 W TR 2023051472W WO 2025018952 A1 WO2025018952 A1 WO 2025018952A1
Authority
WO
WIPO (PCT)
Prior art keywords
antenna elements
carrier plate
received
mode
smart repeater
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
PCT/TR2023/051472
Other languages
English (en)
Inventor
Fatih KILINC
Muhammad Bilal JANJUA
Musab Mahmoud Abd Alkareem ALAYASRA
Huseyin Arslan
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ulak Haberlesme AS
Original Assignee
Ulak Haberlesme AS
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ulak Haberlesme AS filed Critical Ulak Haberlesme AS
Publication of WO2025018952A1 publication Critical patent/WO2025018952A1/fr
Anticipated expiration legal-status Critical
Pending legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/04013—Intelligent reflective surfaces
    • 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
    • H04B7/15557—Selecting relay station operation mode, e.g. between amplify and forward mode, decode and forward mode or FDD - and TDD mode

Definitions

  • Invention relates to a smart repeater (network controlled repeater) for relaying telecommunication between devices.
  • NCR network-controlled repeater
  • SR smart repeater
  • Additional functions in NCR make it superior and smarter than traditional repeaters, including time division duplex (TDD) information access, RU on/off, and multi-beam operation.
  • TDD time division duplex
  • a control unit is added to NCR that performs simple baseband processing to retrieve the side information from the control signals sent by the base station.
  • the side information helps to improve its performance. For instance, it can exploit TDD information for efficient amplification and forward relaying or beamforming the signals toward the users and base station. Besides, with on/off information, it can turn off to save power and avoid the unnecessary amplification of noise signals.
  • the current network-controlled repeater operation is only works in amplify and forward configuration.
  • the NCR device can be controlled by the base station and turned off when the NCR operation is not necessary to save energy.
  • NCR by its design has two antenna units separated by each other and physically separated to overcome self-interference problem. However, this type design limits the coverage region of the NCR device.
  • WO2021022241 discloses a control method for smart repeaters to receive the RF signal and control information over a bandwidth part. Then extract the information to select the beams and use those beams to receive or transmit information from or to one or more devices based on the control information.
  • WO2022228786A1 discloses a reconfigurable intelligent beamforming system comprising a passive fixed array panel configured to receive signals and focus the signals to provide focused signals towards at least one fixed location, and at least one intelligent surface at the at least one fixed location, the at least one intelligent surface configured to receive the focused signals and to control beamforming of the focused signals to provide beamformed signals.
  • US2017069967 discloses an antenna is including an electromagnetic metasurface.
  • the electromagnetic characteristics of the antenna are dynamically tunable thus allowing reflection of signals.
  • Tierui Gong et al. “Holographic MIMO Communications: Theoretical Foundations, Enabling Technologies, and Future Directions” and Jiancheng An. Et al. “A tutorial on Holographic MIMO Communications — Part II: Performance Analysis and Holographic Beamforming” discloses holographic antennas and meta-surfaces that are able to reflect or receive radio frequency signals.
  • the present invention relates to a smart repeater to eliminate the above-mentioned disadvantages and bring new advantages to the relevant technical field.
  • An object of the invention is to increase coverage area and quality of a cell.
  • Another object of the invention is to provide a smart repeater that contributes to cell reception in power saving mode.
  • the present invention relates to a smart repeater for relaying telecommunication signals. Accordingly, it is characterized in that comprising at least a first carrier plate which is facing a base station and at least a second carrier plate which is facing an opposite direction; plurality of antenna elements are provided on said first carrier plate and said second carrier plate; at least an uplink line and at least a downlink line are provided between antenna elements of first carrier plate and second carrier plate; antenna elements are configured to selectively operate between a reflection mode where received communication signal is reflected back to a first direction that carrier plate that is carrying antennas that received the communication signal is facing and a relaying mode where received signal is fed to said uplink line or said downlink line to be transmitted to a second direction by antennas that are on the carrier plates that are on the opposite side of the carrier plates that are carrying antennas that received the communication signal; comprising a controller configured to control antenna elements’ operating mode.
  • a controller configured to control antenna elements’ operating mode.
  • a possible embodiment of the invention is characterized in that at least some of the antenna elements are holographic antennas.
  • Another possible embodiment of the invention is characterized in that at least some of antenna elements are meta-surface antennas.
  • control unit is configured to operate at least some of the antennas in the reflecting mode and some of the antennas in relaying mode.
  • Another possible embodiment of the invention is characterized by comprising at least a first amplification element provided on uplink line and at least a second amplification element provided on downlink line; comprising a first reflection switch element and a second reflection switch element, controlled by said controller, connecting uplink line to downlink line in such way that received uplink communication signal is fed to downlink line in order to be transmitted back from the antenna elements that are provided on the carrier plate that received the communication signal; and received downlink communication signal is fed to uplink line in order to be transmitted back from the antenna elements that are provided on the carrier plate that received the communication signal.
  • Another possible embodiment of the invention is characterized in that smart repeater is configured to operate in a power saving mode where antenna elements operate in reflection mode and rest of the antenna elements are in off state. Thus, power consumption is greatly reduced while providing coverage using reflection.
  • controller is configured to receive instruction signals from a base station in order to control operation mode of smart repeater or antenna elements.
  • controller is configured to control antenna elements’ operating channels; controller is configured to operate at least some of the antenna elements that is dedicated to receive communication signals in a first channel in reflection mode; and operate at least some of the antenna elements that is dedicated to receive a communication signal in a second channel in relaying mode.
  • Figure 1 is a drawing illustrating schematic view of the smart repeater.
  • Figure 2 is a drawing illustrating schematic view of the system.
  • Figure 3 is a drawing illustrating representative an operating scenario of the system.
  • Figure 4 is a drawing illustrating representative an operating scenario of the system.
  • Figure 5 is a drawing illustrating representative an operating scenario of the system.
  • present invention is a smart repeater (100) for relaying communication signals between a base station (200) and user equipment (300) or between other devices that realize radio frequency communication.
  • Smart repeater (100) selectively reflects and/or relays communication signals in hybrid manner.
  • Smart repeater (100) comprises a controller (1 10) in order to control operation functions thereof.
  • Smart repeaters (100) are known in the art as smart repeater device (SRD) or network controlled repeaters (NCR).
  • Smart repeater (100) comprises a first carrier plate (121 ) facing a base station (200) and a second carrier plate (122) facing an opposite side.
  • Carrier plates comprise antenna elements in order to receive and transmit communication signals in radio frequency.
  • Antenna elements may comprise beamforming circuitry and other well-known components in the art. Thus, further details are not disclosed herein.
  • an uplink line (141 ) and a downlink line (142) and an uplink line (141 ) is provided between antenna elements that are on first carrier plate (121 ) and antenna elements that are on second carrier plate (122).
  • Uplink line (141 ) is provided to receive, amplify and transmit uplink communication signals.
  • Downlink line (142) is provided in order to receive, amplify and transmit downlink communication signals.
  • Uplink line (141 ) and downlink line (142) comprises amplification element (160).
  • Uplink line (141 ) and downlink line (142) may comprise frequency shifting elements (not shown in the drawings) controlled by controller (110) in order the shift the frequencies of signals before they are transmitted.
  • Base station (200) is well- known in the art.
  • Base station (200) may comprise RF transceivers, antennas, baseband processing components, controllers (1 10) and software in order to provide telecommunication between user equipment (300) in its cell and a wider network.
  • Base station (200) may be a g- Node-B (gNB) base station (200).
  • gNB g- Node-B
  • Antenna elements (130) are configured to selectively operate in a reflection mode and a relaying mode. Said controller (1 10) is configured to control operating mode of antenna elements. Antenna elements (130) may be integrated into carrier plates (122).
  • antenna elements (130) In said reflective mode, antenna elements (130) reflects received communications signals towards the side that signal was received. In relaying mode, antenna elements (130) is fed to uplink line (141 ) or downlink line (142) to be transmitted by antenna elements (130) that are on the opposite side of the antenna elements that received the communication signal.
  • invention is also a system that comprises at least a base station (200) and at least above mentioned smart repeater (100).
  • Base station (200) is configured to command smart repeater (100) relating to communication channels to be used and operation mode to be operated in.
  • At least some of the antenna elements (130) are holographic antennas.
  • Holographic antennas are known in the art. Therefore specific operating principle is not disclosed herein.
  • Holographic antennas are controlled by a controller (1 10) and they transmit received signals in desired directions.
  • At least some of the antenna elements (130) are metasurface antennas. Meta surface antennas are also know in the art. Meta surface antennas reflect received transmission signals and may be used to receive transmission signals as well.
  • smart repeater (100) comprises at least a first amplification element (160) provided on uplink line (141 ) and at least a second amplification element (160) provided on downlink line (142).
  • First (510) reflection switch (151 ) element and a second reflection switch element (152), are provided which are controlled by said controller (1 10).
  • First reflection switch element (151 ) and second reflection switch element (152) connects uplink line (141 ) to downlink line (142) in such way that received uplink communication signal is fed to downlink line (142) in order to be transmitted back from the reflective antennas that are provided on the carrier plate that received the communication signal; and received downlink communication signal is fed to uplink line (141 ) in order to be transmitted back from the reflective antennas that are provided on the carrier plate that received the communication signal.
  • First reflection switch (151 ) element and second reflection switch elements (152) are connected by connection lines (153)
  • first reflection switch element (151 ) connects to second reflection switch element (152).
  • This enables feeding communication signal back to antennas that are on the first carrier plate (121 ).
  • Antenna elements that are on the carrier plate transmits fed back communication signal, thus causing a reflection of communication signal.
  • reflection switch elements separates inputs of amplification elements (160) on uplink line (141 ) and downlink line (142). This enables generic transmission of received signal from the antennas that are on second carrier plate (122).
  • antenna elements (130) may operate in passive reflection mode where received signal is directly reflected back without going through reflection switches.
  • Amplification element (160) may be an RF amplifier. In a possible embodiment (160) amplification element (160) may be reflection type amplifier.
  • controller (1 10) may operate some of the antenna elements (130) in reflecting and some of the antenna elements (130) in relaying mode. For instance, reflective antenna elements (130) that are dedicated to a first channel may operate in reflecting mode and antenna elements (130) that are dedicated to a second channel may operate in relaying mode.
  • base station (200) transmits a downlink communication signal in a first channel to a first user equipment (310).
  • Base station (200) also transmits a downlink communication signal in a second channel to a second user equipment (320). Since, second user equipment (320) is between base station (200) and smart repeater (100) and first user equipment (310) is located facing second carrying plate of base station (200), base station (200) sends command signal to smart repeater (100) device so that smart repeater (100) device operates at least some of antenna elements dedicated to second channel on first carrier plate (121 ) in reflecting mode and operates antenna elements (130) dedicated to first channel on first carrier plate (121 ) in relaying mode.
  • first device (510) transmits RF signal to a second device (520) on a second channel.
  • Smart repeater (100) operates antenna elements (130) on first carrier plate (121 ) and second carrier plate (122).
  • Smart repeater (100) operates some of the antenna elements (130) in relaying mode on first carrier plate (122) and some of the antenna elements (130) on second carrier plate (122) in reflective mode.
  • first device (510) may send RF signal to second device (520) with help of smart repeater (100).
  • base station (200) transmits downlink communication signal to user equipment (300).
  • link between base station (200) and user equipment (300) may be weak.
  • Smart repeater (100) operates reflective antenna elements (130) in passive reflection mode, and rest of the antennas in off state.
  • smart repeater (100) provides reflection of communication signals consuming reduced power.
  • meta surface antennas may be utilized in order to operate in passive reflection mode.

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Radio Relay Systems (AREA)

Abstract

L'invention concerne un répéteur intelligent (100) pour relayer des signaux de télécommunication. Il est caractérisé par le fait qu'il comprend au moins une première plaque porteuse (121) qui fait face à une station de base (200) et au moins une deuxième plaque porteuse (122) qui fait face à une direction opposée ; comprenant plusieurs éléments d'antenne (130) configurés pour fonctionner sélectivement entre un mode de réflexion dans lequel le signal de communication reçu est réfléchi vers une première direction à laquelle fait face la plaque porteuse qui porte les antennes ayant reçu le signal de communication et un mode de relais dans lequel le signal reçu est acheminé vers ladite ligne de liaison montante (141) ou ladite ligne de liaison descendante (142) pour être transmis vers une seconde direction par les antennes qui se trouvent sur les plaques porteuses du côté opposé aux plaques porteuses qui portent les antennes ayant reçu le signal de communication ; comprenant un contrôleur (110) configuré pour commander le mode de fonctionnement des éléments d'antenne (130).
PCT/TR2023/051472 2023-07-14 2023-12-05 Répéteur intelligent fonctionnant en modes réflexion et relais Pending WO2025018952A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
TR2023/008274A TR2023008274A1 (tr) 2023-07-14 2023-07-14 Yansitma ve aktarma modlarinda çalişan bi̇r akilli tekrarlayici
TR2023/008274 2023-07-14

Publications (1)

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WO2025018952A1 true WO2025018952A1 (fr) 2025-01-23

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PCT/TR2023/051472 Pending WO2025018952A1 (fr) 2023-07-14 2023-12-05 Répéteur intelligent fonctionnant en modes réflexion et relais

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TR (1) TR2023008274A1 (fr)
WO (1) WO2025018952A1 (fr)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111245492A (zh) * 2020-01-10 2020-06-05 北京邮电大学 基于接收功率排序的联合波束训练和智能反射面选择方法
WO2022133957A1 (fr) * 2020-12-24 2022-06-30 Huawei Technologies Co., Ltd. Systèmes et procédés pour des surfaces intelligentes réfléchissantes dans des systèmes mimo
WO2023105802A1 (fr) * 2021-12-10 2023-06-15 株式会社Ｎｔｔドコモ Dispositif de relais sans fil, station de base et procédé de relais sans fil

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111245492A (zh) * 2020-01-10 2020-06-05 北京邮电大学 基于接收功率排序的联合波束训练和智能反射面选择方法
WO2022133957A1 (fr) * 2020-12-24 2022-06-30 Huawei Technologies Co., Ltd. Systèmes et procédés pour des surfaces intelligentes réfléchissantes dans des systèmes mimo
WO2023105802A1 (fr) * 2021-12-10 2023-06-15 株式会社Ｎｔｔドコモ Dispositif de relais sans fil, station de base et procédé de relais sans fil

Also Published As

Publication number Publication date
TR2023008274A1 (tr) 2024-05-21

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