+

WO2018155776A1 - Procédé de communication utilisant une seule chaîne rf, et dispositif de communication utilisant une seule chaîne rf - Google Patents

Procédé de communication utilisant une seule chaîne rf, et dispositif de communication utilisant une seule chaîne rf Download PDF

Info

Publication number
WO2018155776A1
WO2018155776A1 PCT/KR2017/008864 KR2017008864W WO2018155776A1 WO 2018155776 A1 WO2018155776 A1 WO 2018155776A1 KR 2017008864 W KR2017008864 W KR 2017008864W WO 2018155776 A1 WO2018155776 A1 WO 2018155776A1
Authority
WO
WIPO (PCT)
Prior art keywords
signal
impedance
communication device
outputting
frequency
Prior art date
Application number
PCT/KR2017/008864
Other languages
English (en)
Korean (ko)
Inventor
옥규순
최일도
이주용
Original Assignee
한국과학기술원
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 한국과학기술원 filed Critical 한국과학기술원
Publication of WO2018155776A1 publication Critical patent/WO2018155776A1/fr

Links

Images

Classifications

    • 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
    • H04B7/15521—Ground-based stations combining by calculations packets received from different stations before transmitting the combined packets as part of network coding
    • 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
    • H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • 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
    • H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • H04B7/0697—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using spatial multiplexing
    • 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
    • H04B7/15592—Adapting at the relay station communication parameters for supporting cooperative relaying, i.e. transmission of the same data via direct - and relayed path

Definitions

  • the embodiments below relate to a communication method using a single RF chain and a communication device using a single RF chain.
  • CA carrier aggregation
  • CoMP Coordinatd Multi-Point
  • LAA License-Assisted Access
  • LTE long term evolution
  • Embodiments may provide a technique for generating an IQ signal based on control information.
  • embodiments may provide a technique for converting an IQ signal into a code based on control information.
  • embodiments may provide a technique for controlling impedance based on code and modulating and outputting an RF signal using a single RF chain.
  • a communication apparatus includes a controller for outputting control information and frequency information based on a control signal received from a base station, and a baseband interface for outputting an IQ signal based on the control information. And a converter for converting the IQ signal into a code based on the frequency information.
  • the frequency information may include at least one of a frequency band, a center frequency, and a bandwidth.
  • the converter may convert the IQ signal based on a look-up table (LUT).
  • LUT look-up table
  • the apparatus may further comprise an impedance loading module for controlling the impedance based on the code.
  • the controller, the baseband interface, and the converter are implemented on the first board, the impedance loading module is implemented on the second board, the first board and the second board. May be different.
  • the apparatus may further include an oscillator for outputting a signal corresponding to the frequency information, and the impedance loading module may modulate a signal based on the impedance and the signal.
  • the apparatus may further include a plurality of antennas connected to the impedance loading module and outputting a signal modulated based on the impedance.
  • a communication method includes outputting control information and frequency information based on a control signal received from a base station, outputting an IQ signal based on the control information, and based on the frequency information. Converting the IQ signal into a code.
  • the frequency information may include at least one of a frequency band, a center frequency, and a bandwidth.
  • the converting may include converting the IQ signal based on a lookup table (LUT).
  • LUT lookup table
  • the method may further comprise controlling impedance based on the code.
  • the method may further include outputting a signal corresponding to the frequency information, and the controlling may include modulating a signal based on the impedance and the signal.
  • the method may further comprise outputting a modulated signal based on the impedance.
  • FIG. 1 shows a block diagram of a communication system according to an embodiment
  • FIG. 2 is a flowchart illustrating an operation of the communication system shown in FIG. 1.
  • FIG. 3 shows an example of a block diagram of the communication device shown in FIG. 1.
  • FIG. 4 illustrates an example of a block diagram of the converter illustrated in FIG. 3.
  • FIG. 5 shows another example of a block diagram of the communication device shown in FIG. 1.
  • FIG. 6 illustrates an example of a structure diagram of the impedance loading module illustrated in FIG. 5.
  • FIG. 7 illustrates an example in which a communication device is actually implemented.
  • FIG. 8 is a flowchart of a communication method according to an exemplary embodiment.
  • Embodiments according to the inventive concept may be variously modified and have various forms, so embodiments are illustrated in the drawings and described in detail herein. However, this is not intended to limit the embodiments in accordance with the concept of the present invention to specific embodiments, and includes modifications, equivalents, or substitutes included in the spirit and scope of the present invention.
  • first or second may be used to describe various components, but the components should not be limited by the terms. The terms are only for the purpose of distinguishing one component from another component, for example, without departing from the scope of the rights according to the inventive concept, the first component may be called a second component, Similarly, the second component may also be referred to as the first component.
  • a module in the present specification may mean hardware capable of performing functions and operations according to each name described in the present specification, and may mean computer program code capable of performing specific functions and operations.
  • an electronic recording medium for example, a processor or a microprocessor, in which computer program code capable of performing specific functions and operations is mounted.
  • a module may mean a functional and / or structural combination of hardware for performing the technical idea of the present invention and / or software for driving the hardware.
  • FIG. 1 shows a block diagram of a communication system according to an embodiment
  • the communication system 10 includes a base station (eNodeB, or eNB) 100, a communication device 200, and an electronic device 300.
  • eNodeB base station
  • eNB evolved NodeB
  • the communication system 10 includes a base station (eNodeB, or eNB) 100, a communication device 200, and an electronic device 300.
  • the base station 100 may communicate with the electronic device 300.
  • the base station 100 may communicate with the electronic device 300 based on LTE or LTE-A.
  • the electronic device 300 may be implemented as a personal computer (PC), a data server, or a portable device.
  • PC personal computer
  • data server a data server
  • portable device a portable device
  • Portable devices include laptop computers, mobile phones, smart phones, tablet PCs, mobile internet devices (MIDs), personal digital assistants (PDAs), enterprise digital assistants (EDAs). , Digital still cameras, digital video cameras, portable multimedia players (PMPs), personal navigation devices or portable navigation devices (PNDs), handheld game consoles, e-books ( It may be implemented as an e-book or a smart device.
  • MIDs mobile internet devices
  • PDAs personal digital assistants
  • EDAs enterprise digital assistants
  • PMPs portable multimedia players
  • PNDs portable navigation devices
  • handheld game consoles e-books ( It may be implemented as an e-book or a smart device.
  • the smart device may be implemented as a smart watch or a smart band. That is, the electronic device 300 may be a wearable device that can be worn or suitable for the user.
  • the communication device 200 may support communication between the base station 100 and the electronic device 300.
  • the communication device 200 may be a small base station.
  • the communication device 200 may support a narrower area than the base station 100 and may be installed indoors, in a densely populated area, or in a shadow area to support communication of the electronic device 300.
  • the communication device 200 may effectively distribute the load of the base station 100 to increase the capacity.
  • the communication device 200 may support multi band with a single RF chain.
  • the communication device 200 may output an RF signal to the electronic device 300 based on the IQ signal output in the form of multiple streams.
  • the IQ signal may include an in-phase signal and a quadrature phase signal.
  • the communication device 200 may control an impedance based on the IQ signal.
  • the communication device 200 may control the impedance to output an RF signal in a specific frequency band, a specific center frequency, or a specific bandwidth.
  • FIG. 2 is a flowchart illustrating an operation of the communication system shown in FIG. 1.
  • the base station 100 may transmit a channel state information (CSI) request message to the electronic device 300 (S210).
  • the CSI request message may include a CSI-RS (CSI-reference signal) configuration message. That is, the base station 100 may instruct the electronic device 300 how to measure the channel state information (CSI) of the cells through the channel state information (CSI) request message.
  • CSI channel state information
  • the electronic device 300 may transmit channel state information (CSI) of cells in response to the channel state information (CSI) request message (S220).
  • the channel state information (CSI) is at least one of a channel quality indicator (CQI), a precoding matrix indicator (PMI), and a signal to interference plus noise ratio (SINR). It may include one.
  • the electronic device 300 may transmit channel state information (CSI) of cells at every scheduling period of the base station 100. Accordingly, the base station 100 may dynamically respond to the instantaneous channel change of the electronic device 300. For example, when a momentary channel change occurs, the base station 100 may dynamically allocate resources to the electronic device 300 based on the channel state information (CSI).
  • CSI channel state information
  • the base station 100 may generate a control signal based on the channel state information CSI (S230).
  • the base station 100 may perform scheduling based on the plurality of channel state information (CSI) received from the plurality of electronic devices 300.
  • the base station 100 may perform scheduling so that interference is minimized and capacity is maximized.
  • the interference may include inter-signal interference, inter-channel interference, or interference between the electronic devices 300.
  • the base station 100 may generate a scheduling result control signal.
  • the control signal may include at least one of user information, a frequency band, a center frequency, a bandwidth, and channel state information (CSI).
  • the user information may be information about the electronic device 300.
  • the base station 100 may transmit a control signal to the communication device 200 (S240).
  • the base station 100 may transmit a control signal using an X2 interface. That is, when the LTE network is initially installed, the communication provider may set the base station 100 and the communication device 200 to support the X2 interface.
  • the communication device 200 may control the frequency based on the control signal (S250). Accordingly, the communication device 200 may control at least one of a frequency band, a center frequency, and a bandwidth. For example, the communication device 200 may control an impedance based on a control signal, and output an RF signal in which at least one of a frequency band, a center frequency, and a bandwidth is different according to the impedance. That is, the communication device 200 may select an optimal frequency band, an optimal center frequency, an optimal bandwidth, or an optimal transmission scheme by controlling the frequency, and support multiple bands.
  • the communication device 200 may transmit data to the electronic device 300 (S260).
  • the communication device 200 may transmit data according to an optimal frequency band, an optimal center frequency, an optimal bandwidth, or an optimal transmission scheme.
  • the base station 100 and the communication device 200 may transmit data to the electronic device 300 according to the following scenario.
  • the base station 100 and the communication device 200 may transmit data to the electronic device 300 using different frequency bands.
  • the base station 100 and the communication device 200 may distribute data so that some data may be transmitted by the base station 100 and the remaining data may be transmitted by the communication device 200. That is, the base station 100, the communication device 200, and the electronic device 300 may use CA technology.
  • the base station 100 and the communication device 200 may transmit data to the electronic device 300 using the same frequency band. Accordingly, the electronic device 300 may have an effect of improving reception performance or increasing capacity. That is, the base station 100, the communication device 200, and the electronic device 300 may use a transmit diversity technique or a spatial multiplexing technique.
  • data may be transmitted from the base station 100 having a good channel state among the plurality of base stations to the electronic device 300.
  • the base station having a good channel condition may transmit data by selecting an optimal frequency band and an optimal beam.
  • FIG. 3 shows an example of a block diagram of the communication device shown in FIG. 1
  • FIG. 4 shows an example of a block diagram of the converter shown in FIG. 3.
  • the communication device 200 includes a controller 210, a baseband interface 220, and a converter 230.
  • the controller 210 may output control information and frequency information based on the control signal received from the base station 100.
  • the controller 210 may receive a control signal from the base station 100 using the X2 interface.
  • the controller 210 may generate control information such that interference between the plurality of electronic devices 300 is minimized and capacity is maximized.
  • the controller 210 may output the control information to the baseband interface 220.
  • the control information may include information about power, time, and frequency resource.
  • the baseband interface 220 may output an IQ signal from an IF signal (intermediate frequency signal) based on the control information.
  • the baseband interface 220 may receive an IF signal from an RF to Optic Conversion Unit (ROCU).
  • the IQ signal may include an in-phase signal and a quadrature phase signal.
  • the baseband interface 220 may output an IQ signal to the converter 230.
  • the controller 210 may output the frequency information to the converter 230.
  • the frequency information may include at least one of a frequency band, a center frequency, and a bandwidth according to the scheduling result.
  • the converter 230 may convert the IQ signal into a code based on the frequency information.
  • the converter 230 may include a look-up table (LUT) 231 and an encoder 233.
  • the lookup table 231 may be an impedance lookup table ILUT.
  • the lookup table 231 may store an impedance value according to the IQ signal. That is, the lookup table 231 may output the impedance value according to the IQ signal to the encoder 233.
  • the impedance values may be impedance values Z 3 , Z 4 , Z 5 , and Z 6 shown in FIG. 6 .
  • the encoder 233 may perform encoding according to the impedance value output by the lookup table 231. That is, the encoder 233 may output a code corresponding to the impedance value.
  • the transducer 230 may further include a serial peripheral interface module (SPI).
  • SPI serial peripheral interface module
  • the transducer 230 may communicate with another device (eg, an impedance loading module) using an SPI module.
  • the converter 230 may output a code corresponding to an impedance value to another device (eg, an impedance loading module) using the SPI module.
  • the controller 210, the baseband interface 220, and the converter 230 may be implemented on the first board 203.
  • FIG. 5 shows another example of a block diagram of the communication device shown in FIG. 1
  • FIG. 6 shows an example of a structural diagram of the impedance loading module shown in FIG. 5
  • FIG. 7 shows an example of the actual implementation of the communication device. Indicates.
  • the communication device 200 includes a controller 210, a baseband interface 220, and a converter 230, an oscillator 240, an impedance loading module. 250, and an antenna 260.
  • the oscillator 240 and the impedance loading module 250 may be implemented on the second board 205.
  • the first board 203 and the second board 205 may be different.
  • the first board 203 may be a baseband board
  • the second board 205 may be an impedance loading board.
  • the controller 210 may output frequency information to the oscillator 240.
  • the frequency information may include at least one of a frequency band, a center frequency, and a bandwidth according to the scheduling result.
  • the oscillator 240 may output a signal to the impedance loading module 250 based on the frequency information. That is, the oscillator 240 may output a signal according to the frequency band, the center frequency, or the bandwidth set by the controller 210. For example, the oscillator 240 may output a signal of the center frequency corresponding to the frequency information.
  • the signal output from the oscillator 240 may be an RF signal.
  • the impedance loading module 250 may be a six-port modulator based module. That is, the impedance loading module 250 may include an internal resistor, a hybrid coupler, a Wilkinson power combiner, and a variable resistor. The internal resistance can be 50 ohms. Internal resistance can always be maintained at 50 ohms.
  • An example of the structural diagram of the impedance loading module 250 may be as shown in FIG. 6.
  • the impedance loading module 250 may control the impedance based on the code received from the converter 230.
  • the impedance loading module 250 may control the impedance with impedance values Z 3 , Z 4 , Z 5 , and Z 6 according to the code.
  • the variable resistor may be a 12 bit variable resistor.
  • the impedance loading module 250 may control an impedance to output an RF signal having at least one of a frequency band, a center frequency, and a bandwidth. That is, the impedance loading module 250 may modulate the RF signal received from the oscillator 231 by controlling the impedance. Thus, the impedance loading module 250 may output various modulated signals while using a single RF chain.
  • the impedance loading module 250 may output the modulated RF signal to the antenna 260.
  • the antenna 260 may be implemented in plural numbers depending on the number of streams supported by the communication device 200.
  • An example of actually implementing the communication device 200 may be as shown in FIG. 7.
  • the oscillator 240 may be implemented in a TX board, and the controller 210 may be implemented in a field-programmable gate array (FPGA).
  • FPGA field-programmable gate array
  • FIG. 8 is a flowchart of a communication method according to an exemplary embodiment.
  • the communication device 200 may output control information and frequency information based on the control signal received from the base station 100 (S810).
  • the communication device 200 may generate an IQ signal based on the control information (S820).
  • the communication device 200 may generate an IQ signal from the IF signal received from the ROCU.
  • the communication device 200 may convert the IQ signal into a code based on the frequency information (S830).
  • the communication device 200 may perform conversion on the IQ signal using the lookup table.
  • the apparatus described above may be implemented as a hardware component, a software component, and / or a combination of hardware components and software components.
  • the devices and components described in the embodiments are, for example, processors, controllers, arithmetic logic units (ALUs), digital signal processors, microcomputers, field programmable gate arrays (FPGAs).
  • ALUs arithmetic logic units
  • FPGAs field programmable gate arrays
  • PLU programmable logic unit
  • the processing device may execute an operating system (OS) and one or more software applications running on the operating system.
  • the processing device may also access, store, manipulate, process, and generate data in response to the execution of the software.
  • processing device includes a plurality of processing elements and / or a plurality of types of processing elements. It can be seen that it may include.
  • the processing device may include a plurality of processors or one processor and one controller.
  • other processing configurations are possible, such as parallel processors.
  • the software may include a computer program, code, instructions, or a combination of one or more of the above, and configure the processing device to operate as desired, or process it independently or collectively. You can command the device.
  • Software and / or data may be any type of machine, component, physical device, virtual equipment, computer storage medium or device in order to be interpreted by or to provide instructions or data to the processing device. Or may be permanently or temporarily embodied in a signal wave to be transmitted.
  • the software may be distributed over networked computer systems so that they may be stored or executed in a distributed manner.
  • Software and data may be stored on one or more computer readable recording media.
  • the method according to the embodiment may be embodied in the form of program instructions that can be executed by various computer means and recorded in a computer readable medium.
  • the computer readable medium may include program instructions, data files, data structures, etc. alone or in combination.
  • the program instructions recorded on the media may be those specially designed and constructed for the purposes of the embodiments, or they may be of the kind well-known and available to those having skill in the computer software arts.
  • Examples of computer-readable recording media include magnetic media such as hard disks, floppy disks, and magnetic tape, optical media such as CD-ROMs, DVDs, and magnetic disks, such as floppy disks.
  • Examples of program instructions include not only machine code generated by a compiler, but also high-level language code that can be executed by a computer using an interpreter or the like.
  • the hardware device described above may be configured to operate as one or more software modules to perform the operations of the embodiments, and vice versa.

Landscapes

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

Abstract

L'invention concerne un procédé de communication utilisant une seule chaîne RF, et un dispositif de communication utilisant une seule chaîne RF. Le dispositif de communication selon un mode de réalisation de l'invention comprend : un contrôleur pour délivrer en sortie des informations de commande et des informations de fréquence sur la base d'un signal de commande reçu d'une station de base ; une interface de bande de base pour délivrer en sortie un signal IQ sur la base des informations de commande ; et un convertisseur pour convertir le signal IQ en un code sur la base des informations de fréquence.
PCT/KR2017/008864 2017-02-24 2017-08-16 Procédé de communication utilisant une seule chaîne rf, et dispositif de communication utilisant une seule chaîne rf WO2018155776A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020170024616A KR101974262B1 (ko) 2017-02-24 2017-02-24 단일 rf 체인을 사용하는 통신 방법 및 단일 rf 체인을 사용하는 통신 장치
KR10-2017-0024616 2017-02-24

Publications (1)

Publication Number Publication Date
WO2018155776A1 true WO2018155776A1 (fr) 2018-08-30

Family

ID=63254361

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/KR2017/008864 WO2018155776A1 (fr) 2017-02-24 2017-08-16 Procédé de communication utilisant une seule chaîne rf, et dispositif de communication utilisant une seule chaîne rf

Country Status (2)

Country Link
KR (1) KR101974262B1 (fr)
WO (1) WO2018155776A1 (fr)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6947769B1 (en) * 2000-09-28 2005-09-20 Mitsubishi Denki Kabushiki Kaisha Radio base station device and radio communication method
US20090109880A1 (en) * 2007-10-31 2009-04-30 Hong Teuk Kim Impedance control apparatus and method for portable mobile communication terminal
US20120220243A1 (en) * 2011-02-25 2012-08-30 Paratek Microwave, Inc. Method and apparatus for tuning a communication device

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6947769B1 (en) * 2000-09-28 2005-09-20 Mitsubishi Denki Kabushiki Kaisha Radio base station device and radio communication method
US20090109880A1 (en) * 2007-10-31 2009-04-30 Hong Teuk Kim Impedance control apparatus and method for portable mobile communication terminal
US20120220243A1 (en) * 2011-02-25 2012-08-30 Paratek Microwave, Inc. Method and apparatus for tuning a communication device

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
LEE, GYEONG TAE ET AL: "Small Base Station Technology Supporting Single RF MultipleStream", INFORMATION AND CORNMUNICATIONS MAGAZINE, vol. 32, no. 4, March 2015 (2015-03-01), pages 93 - 96 *
UOOYEOL YOON: "Baseband FPGA for Beamspace MIMO RF at LTE Communication", PROCEEDINGS OF THE KOREAN IRRSTITME OF COMMUNICATIONS AND INFORMATION SCIENCES (KICS) 2016, November 2016 (2016-11-01), pages 599 - 600 *

Also Published As

Publication number Publication date
KR20180097886A (ko) 2018-09-03
KR101974262B1 (ko) 2019-04-30

Similar Documents

Publication Publication Date Title
JP7230217B2 (ja) 上りリンクチャネルの配置方法、伝送方法、ネットワーク側機器及び端末
TWI679871B (zh) 資料傳輸方法、裝置、網路側設備和使用者設備
CN110880958A (zh) 一种射频参数的上报方法及装置
BR112012019729B1 (pt) Método de mapeamento de uma camada para uma porta de símbolo de referência de demodulação de multiplexação e aparato para alcançar pré-codificação baseado em um símbolo de referência de demodulação de multiplexação
WO2018147503A1 (fr) Appareil et procédé de contrôle de brouillage intercellulaire dans un système de communication sans fil basé sur un duplexage par répartition dans le temps
JP2019509660A5 (fr)
CN110535604B (zh) 一种速率匹配方法和装置
WO2018177022A1 (fr) Procédé et dispositif de détermination de granularité de précodage
WO2010128744A1 (fr) Procédé d'émission et de réception de retour d'informations d'état de canal dans un système de communication sans fil
CN115150025A (zh) Csi反馈方法、相关设备及可读存储介质
WO2023226045A1 (fr) Procédé et appareil de rapport de capacité de terminal, dispositif et support
WO2025035674A1 (fr) Procédé et appareil de sélection de sous-configuration de rapport, dispositif de réseau, terminal et suppor
WO2019160350A1 (fr) Appareil et procédé de détermination de puissance d'émission dans un système de communication sans fil
EP4173148A1 (fr) Procédés et dispositifs de verrouillage d'etat de transmission
WO2018155776A1 (fr) Procédé de communication utilisant une seule chaîne rf, et dispositif de communication utilisant une seule chaîne rf
CN113840380B (zh) 一种波束指示方法及通信装置
WO2021112543A1 (fr) Procédé et dispositif de multiplexage spatial utilisant une onde polarisée dans un système à multiples faisceaux
EP3895328A1 (fr) Procédés et systèmes destinés à adapter la largeur de faisceau de faisceaux sur des canaux physiques nr
CN104255076A (zh) 用于无线传送的资源元素映射
WO2023033373A1 (fr) Procédé de transmission d'un signal au moyen d'une matrice de virtualisation de ports et dispositif électronique exécutant le procédé
CN109150428B (zh) 一种信号传输方法、装置及基站
CN112789807A (zh) 相干级别的动态信令
WO2019213870A1 (fr) Conception d'informations de commande de liaison descendante à un seul étage permettant la planification de parties de bande passante à activités multiples
WO2022012322A1 (fr) Procédé et appareil de renvoi d'informations d'état de canal
WO2020080843A1 (fr) Procédé et appareil de régulation de flux de paquets

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 17897793

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 17897793

Country of ref document: EP

Kind code of ref document: A1

点击 这是indexloc提供的php浏览器服务，不要输入任何密码和下载