WO2024069766A1 - 無線通信システム、無線通信方法、クラスタリング管理装置、及びプログラム - Google Patents
無線通信システム、無線通信方法、クラスタリング管理装置、及びプログラム Download PDFInfo
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- WO2024069766A1 WO2024069766A1 PCT/JP2022/035997 JP2022035997W WO2024069766A1 WO 2024069766 A1 WO2024069766 A1 WO 2024069766A1 JP 2022035997 W JP2022035997 W JP 2022035997W WO 2024069766 A1 WO2024069766 A1 WO 2024069766A1
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
- H04W24/02—Arrangements for optimising operational condition
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W40/00—Communication routing or communication path finding
- H04W40/02—Communication route or path selection, e.g. power-based or shortest path routing
- H04W40/12—Communication route or path selection, e.g. power-based or shortest path routing based on transmission quality or channel quality
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W40/00—Communication routing or communication path finding
- H04W40/24—Connectivity information management, e.g. connectivity discovery or connectivity update
- H04W40/32—Connectivity information management, e.g. connectivity discovery or connectivity update for defining a routing cluster membership
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
- H04W24/08—Testing, supervising or monitoring using real traffic
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
- H04W24/10—Scheduling measurement reports ; Arrangements for measurement reports
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W8/00—Network data management
- H04W8/18—Processing of user or subscriber data, e.g. subscribed services, user preferences or user profiles; Transfer of user or subscriber data
- H04W8/186—Processing of subscriber group data
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W92/00—Interfaces specially adapted for wireless communication networks
- H04W92/16—Interfaces between hierarchically similar devices
- H04W92/18—Interfaces between hierarchically similar devices between terminal devices
Definitions
- This disclosure relates to clustering of terminal stations (UE clustering) capable of communicating with each other, and in particular to a technology for performing UE clustering that optimizes the wireless quality of terminal stations.
- UE clustering clustering of terminal stations
- Non-patent documents 1 and 2 disclose the management of wireless quality in 5G NR.
- the wireless quality that is managed is QoE (Quality of Experience).
- QoE Quality of Experience
- a configuration for measuring QoE is sent from the base station (NG-RAN Node) to the terminal station (UE: User Equipment).
- the terminal station measures QoE based on the configuration and sends the measurement result to the base station as a QoE report.
- the base station sends the QoE report to a wireless quality server (QoE server). In this way, the wireless quality of each terminal station is managed.
- QoE server wireless quality server
- Non-Patent Documents 1 and 2 do not take into consideration that UE clustering changes wireless communication quality.
- This disclosure has been made in consideration of the problems described above.
- the purpose of this disclosure is to ensure the required wireless quality by optimizing the clustering of terminal stations.
- the present disclosure provides a wireless communication system to achieve the above object.
- the wireless communication system of the present disclosure includes a central station, a base station that communicates with the central station, and a terminal station that communicates wirelessly with the base station.
- the terminal station is configured to enable wireless communication between the terminal stations.
- the terminal station is also configured to transmit information related to wireless quality and information related to the service being used to the base station.
- the base station is configured to perform clustering of the terminal stations (UE clustering) according to clustering control information received from the central station.
- the base station is also configured to transmit information received from the terminal stations and information related to the wireless environment of the terminal stations to the central station.
- the central station is configured to learn clustering that satisfies the required wireless quality according to the service being used at the terminal station based on the information received from the base station, and to transmit information related to the learned clustering to the base station as clustering control information.
- the present disclosure also provides a wireless communication method using a terminal station configured to enable wireless communication between terminal stations.
- the wireless communication method of the present disclosure includes the following steps.
- the first step is a step of transmitting information on wireless quality and information on the service being used from the terminal station to a base station that wirelessly communicates with the terminal station.
- the second step is a step of transmitting the information transmitted from the terminal station to the base station and information on the wireless environment of the terminal station from the base station to a central station that communicates with the base station.
- the third step is a step of learning clustering (UE clustering) that satisfies the required wireless quality according to the service being used at the terminal station based on the information transmitted from the base station to the central station.
- the fourth step is a step of transmitting information on the learned clustering from the central station to the base station as clustering control information.
- the fifth step is a step of performing clustering of the terminal stations according to the clustering control information transmitted from the central station to the base station.
- the present disclosure provides a clustering management device that manages clustering (UE clustering) of terminal stations configured to enable wireless communication between terminal stations.
- the clustering management device of the present disclosure includes one or more processors and a program memory coupled to the one or more processors and storing a plurality of executable instructions.
- the plurality of instructions are configured to cause the one or more processors to execute the following processes.
- the first process is to obtain information on the wireless quality of the terminal station, information on the service being used by the terminal station, and information on the wireless environment of the terminal station from a base station that wirelessly communicates with the terminal station.
- the second process is to learn clustering that satisfies the required wireless quality according to the service being used by the terminal station based on the information obtained from the base station.
- the third process is to transmit information on the learned clustering to the base station.
- the present disclosure provides a program to achieve the above object.
- the program of the present disclosure is configured to cause a computer to execute the following processes.
- the first process is to acquire information on the wireless quality of the terminal station, information on the service being used by the terminal station, and information on the wireless environment of the terminal station from a base station that wirelessly communicates with the terminal station.
- the second process is to learn clustering (UE clustering) that satisfies the required wireless quality according to the service being used by the terminal station based on the information acquired from the base station.
- the third process is to transmit information on the learned clustering to the base station.
- the program of the present disclosure may be recorded in a computer-readable recording medium, or may be provided via a network.
- clustering that satisfies the required wireless quality according to the service being used at the terminal station is learned based on information about the wireless quality of the terminal station, information about the service being used by the terminal station, and information about the wireless environment of the terminal station. This makes it possible to ensure the required wireless quality by optimizing the clustering of the terminal stations.
- FIG. 1 is a diagram illustrating a configuration of a wireless communication system according to an embodiment of the present disclosure.
- FIG. 2 is a functional block diagram showing functions of a wireless communication system according to an embodiment of the present disclosure.
- FIG. 2 is a diagram illustrating an example of a hardware configuration of a central station serving as a clustering management device.
- 5 is a flowchart illustrating a flow of information between a toll station and a base station and between a base station and a terminal station in a wireless communication system according to an embodiment of the present disclosure.
- 1 is a flowchart illustrating a process that is repeatedly executed in a wireless communication system according to an embodiment of the present disclosure.
- a wireless communication system is a system that provides a variety of communication services including Web, voice calls, and video distribution to users.
- the configuration of the wireless communication system according to an embodiment of the present disclosure is shown in Fig. 1.
- a wireless communication system 10 includes a plurality of terminal stations 40, a plurality of base stations 30, and a central station 20.
- the terminal stations 40 are also called UE (User Equipment).
- the base station 30 is also called a node or an access point.
- the terminal station 40 is a mobile wireless station.
- the terminal station 40 is a terminal station compatible with MIMO.
- the terminal station 40 is also a terminal station that can form a cluster through wireless inter-terminal station communication (D2D).
- D2D wireless inter-terminal station communication
- the terminal station 40 is compatible with various communication services provided by the wireless communication system 10.
- a user who possesses the terminal station 40 can use the desired communication service using the terminal station 40.
- a typical example of the terminal station 40 is a smartphone.
- the base station 30 is a wireless station with a fixed location.
- the base station 30 communicates with the terminal station 40 wirelessly.
- the base station 30 includes, for example, a base station 30A for a small cell that has a phased array antenna and emits a directional beam BM, and a base station 30B for a macro cell that forms a wide coverage area A by using radio waves emitted in all directions.
- the base station 30 may also be configured with a centralized antenna or a distributed antenna.
- the central station 20 is a device that is placed on a network and communicates with each base station 30 via the network.
- the central station 20 may be, for example, a cloud server or a dedicated server. Alternatively, the central station 20 may be integrated into one of the base stations 30.
- the central station 20 is configured as a clustering management device that manages the clustering (UE clustering) of the terminal stations 40.
- the central station 20 transmits clustering control information to each base station 30 for assigning the terminal stations 40 to clusters.
- a cluster CL1 is formed by the terminal stations 40 that communicate with the base station 30A
- clusters CL2 and CL3 are formed by the terminal stations 40 that communicate with the base station 30B.
- FIG. 2 is a functional block diagram showing the functions of the wireless communication system 10. The functions of each of the terminal station 40, the base station 30, and the toll station 20 that constitute the wireless communication system 10 will be described below.
- the terminal station 40 includes an antenna 400, a received signal radio conversion unit 401, an analog-to-digital conversion unit 402, a data signal demodulation and decoding unit 403, and an information bit detection unit 404.
- the radio signal transmitted from the base station 30 is received by the antenna 400.
- the radio signal transmitted from the base station 30 includes a cluster allocation for UE clustering.
- the radio signal received by antenna 400 is converted into an analog received signal in the baseband by received signal radio conversion unit 401.
- the analog received signal obtained by received signal radio conversion unit 401 is digitized for digital demodulation by analog-to-digital conversion unit 402.
- the received data signal digitized from the analog received signal is demodulated by data signal demodulation and decoding unit 403, and further subjected to error correction decoding.
- the information bits obtained by demodulation and error correction decoding of the received data signal are detected by information bit detection unit 404.
- the terminal station 40 further includes a terminal station information notification unit 405.
- the terminal station information notification unit 405 generates a signal for notifying the terminal station 40 of its current wireless quality and the service in use.
- the generated signal is transmitted from the antenna 400 to the base station 30.
- Wireless quality refers to the user's quality of experience (QoE), and a representative example of this is delay time.
- QoE quality of experience
- the notification of the service in use includes the quality (required QoE quality) required of the service provider. If the current wireless quality of the terminal station 40 does not meet the required QoE quality, it can be said that there is room for improvement in the cluster allocation of the terminal station 40.
- the base station 30 includes an antenna 300, a received signal radio conversion unit 301, an analog-to-digital conversion unit 302, a data signal demodulation and decoding unit 303, and an information bit detection unit 304.
- the radio signal transmitted from the terminal station 40 is received by the antenna 300.
- the radio signal transmitted from the terminal station 40 includes radio quality information and information on the service in use.
- the RF band radio signal received by antenna 300 is converted into an analog received signal in the baseband by received signal radio conversion unit 301.
- the analog received signal obtained by received signal radio conversion unit 301 is digitized for digital demodulation by analog-to-digital conversion unit 302.
- the received data signal digitized from the analog received signal is demodulated by data signal demodulation and decoding unit 303 and further subjected to error correction decoding.
- Information bits are obtained by demodulating the received data signal and error correction decoding.
- the information bits are detected by information bit detection unit 304 and transmitted to central station 20.
- the information bits transmitted to central station 20 include wireless quality information and in-use service information of terminal station 40.
- the base station 30 also includes an information bit generator 305, a data signal modulation and coding unit 306, a digital-to-analog converter 307, and a transmission signal radio converter 308.
- a signal transmitted from the central station 20 to the base station 30 is input to the information bit generator 305.
- the signal input to the information bit generator 305 includes clustering control information for UE clustering.
- the information bit generation unit 305 generates information bits of data to be transmitted to the terminal station 40 and the selection result of the optimal base station from the clustering control information.
- the data to be transmitted to the terminal station 40 includes an optimized cluster allocation.
- the information bits generated from the clustering control information are error-correction coded by the data signal modulation coding unit 306 and are further digitally modulated.
- the digitally modulated transmission signal is converted to an analog signal by the digital-to-analog conversion unit 307.
- the analog transmission signal is converted from a baseband signal to an RF band radio signal by the transmission signal radio conversion unit 308 and transmitted from the antenna 300 to the terminal station 40.
- the base station 30 further includes a received power intensity detection unit 309, an obstacle detection unit 310, and a surrounding environment detection unit 311.
- the received power intensity detection unit 309 detects the received power intensity (RSSI) from the received signal transmitted from the terminal station 40 and received by the antenna 300, and notifies the central station 20 of the detected received power intensity.
- the obstacle detection unit 310 detects obstacles such as buildings and trees that affect communication with the terminal station 40, and notifies the central station 20 of the detected obstacles.
- the surrounding environment detection unit 311 detects the surrounding environment, such as terrain, that affects communication with the terminal station 40, and notifies the central station 20 of the detected surrounding environment.
- the received power strength, obstacles, and surrounding environment are information related to the wireless environment of the terminal station 40. Not only the clustering situation, but also the wireless environment of the terminal station 40 are factors that affect the wireless quality of the terminal station 40. Note that, instead of or in addition to the received power strength, the reference signal received power (RSRP), reference signal received quality (RSRQ), signal-to-interference-and-noise ratio (SINR), etc. may be detected as wireless environment information of the terminal station 40.
- RSRP reference signal received power
- RSRQ reference signal received quality
- SINR signal-to-interference-and-noise ratio
- the central station 20 comprises a terminal station information collection unit 201, a received power intensity collection unit 202, an obstacle information collection unit 203, and a surrounding environment information collection unit 204.
- the terminal station information collection unit 201 collects wireless quality information and in-use service information of each terminal station 40 notified from the base station 30.
- the received power intensity collection unit 202 collects received power intensity information of each terminal station 40 notified from the base station 30.
- the obstacle information collection unit 203 collects obstacle information notified from the base station 30.
- the surrounding environment information collection unit 204 collects surrounding environment information notified from the base station 30.
- the central station 20 which is a clustering management device, is equipped with a clustering learning optimization processing unit 205 and a clustering control unit 206.
- the clustering learning optimization processing unit 205 learns UE clustering that optimizes the wireless quality of each terminal station 40 from each collected information. In detail, based on the received power intensity information, obstacle information, and surrounding environment information that represent the wireless environment of each terminal station 40, clustering of each terminal station 40 is performed so as to reduce the difference between the current wireless quality of each terminal station 40 and the required QoE quality of the service being used by each terminal station 40. Information related to the learned clustering is notified to the base station 30 by the clustering control unit 206 as clustering control information.
- FIG. 3 is a diagram showing an example of the hardware configuration of the central station 20.
- the central station 20 shown in Fig. 3 is a computer including a communication interface 21, one or more processors (hereinafter simply referred to as processors) 22, a program memory 23, and an information memory 25.
- the program memory 23 stores a plurality of executable instructions 24 constituting a program.
- the information memory 25 stores various information such as clustering control information 26 and required QoE quality information 27 for each service.
- the communication interface 21, the program memory 23, and the information memory 25 are communicatively coupled to the processor 22.
- the central station 20 is connected to the network via a communication interface 21. Wireless quality information, service in use information, and wireless environment information notified from the base station 30 are received via the communication interface 21. In addition, clustering control information generated by the central station 20 is transmitted to the base station 30 via the communication interface 21.
- the processor 22 may be a central processing unit (CPU), a field programmable gate array (FPGA), an application specific integrated circuit (ASIC), or another processing unit. Alternatively, the processor 22 may be a combination of two or more CPUs, FPGAs, ASICs, or other processing units.
- the processor 22 which may be a CPU, FPGA, ASIC, or another processing unit, is triggered to perform the functions of a clustering management device. Note that the program memory 23 may be a separate device from the processor 22, or may be built into the processor 22.
- At least one of the instructions 24 is programmed to cause the processor 22 to collect wireless quality information, currently used service information, and wireless environment information of each terminal station 40 from the base station 30. At least one of the instructions 24 is also programmed to cause the processor 22 to learn clustering in which the required QoE quality according to the currently used service is satisfied at each terminal station 40 based on the information collected from the base station. At least one of the instructions 24 is also programmed to cause the processor 22 to transmit information (clustering control information) related to the learned clustering to the base station 30.
- FIG. 4 is a flowchart showing the information flow between the toll station 20 and the base station 30, and between the base station 30 and the terminal station 40.
- the information flow shown in this flowchart is also the information flow realized by the wireless communication method according to this embodiment.
- a first terminal station 40-1 and a second terminal station 40-2 are shown as terminal stations 40 that wirelessly communicate with the base station 30.
- the first terminal station 40-1 and the second terminal station 40-2 may be terminal stations that belong to the same cluster, or may be terminal stations that belong to different clusters.
- step S101 wireless quality information and in-use service information are transmitted from the first terminal station 40-1 to the base station 30.
- step S102 wireless environment information of the first terminal station 40-1 is transmitted from the base station 30 to the central station 20 together with the wireless quality information and in-use service information received from the first terminal station 40-1.
- step S103 wireless quality information and in-use service information are transmitted from the second terminal station 40-2 to the base station 30.
- step S104 wireless environment information of the second terminal station 40-2 is transmitted from the base station 30 to the central station 20 together with the wireless quality information and in-use service information received from the second terminal station 40-2.
- the timing at which the base station 30 receives information from the first terminal station 40-1 and the second terminal station 40-2 may be scheduled in advance or may occur spontaneously.
- the base station 30 may also transmit information about the first terminal station 40-1 and information about the second terminal station 40-2 to the central station 20 separately at different times, or may transmit these pieces of information together to the central station 20 at the same time.
- the central station 20 further collects wireless quality information, information on services in use, and wireless environment information of multiple terminal stations 40 other than the first terminal station 40-1 and the second terminal station 40-2.
- the central station 20 learns clustering that optimizes the wireless quality of each terminal station 40, including the first terminal station 40-1 and the second terminal station 40-2, from each collected piece of information. Optimizing the wireless quality means that each terminal station 40 satisfies the required QoE quality of the service in use.
- clustering control information for instructing the base station 30 about the learned clustering is transmitted from the central station 20 to the base station 30.
- step S107 the base station 30 instructs the first terminal station 40-1 to perform cluster allocation in accordance with the clustering control information.
- the base station 30 instructs the second terminal station 40-2 to perform cluster allocation in accordance with the clustering control information.
- the base station 30 may transmit the cluster allocation instruction to the first terminal station 40-1 and the cluster allocation instruction to the second terminal station 40-2 separately at different times, or may transmit these instructions at the same time.
- the first terminal station 40-1 and the second terminal station 40-2 may be assigned to the same cluster or to different clusters. For example, they may be assigned to the cluster of another base station 30 whose coverage area overlaps. In this way, the cluster allocation is appropriately changed between all terminal stations 40, so that the required QoE quality of the service being used at each terminal station 40 is satisfied.
- FIG. 5 is a flowchart showing the processing repeatedly executed in the wireless communication system 10.
- step S201 the required QoE quality is determined from the services being used by each terminal station 40.
- step S202 in each terminal station 40, the packet error rate is calculated from the propagation loss in the current clustering situation, the fading environment, and the allocated power to each user stream.
- the packet error rate is calculated using a predefined formula or map with the propagation loss, fading environment, and allocated power as parameters.
- the delay time is calculated from the transmission method currently used in each terminal station 40, the packet error rate calculated in step S202, and the average retransmission time.
- the transmission methods used include, for example, CDMA (Code Division Multiple Access), WCDMA (Wide band CDMA) (registered trademark), FDMA (Frequency Division Multiple Access), TDMA (Time Division Multiple Access), OFDM (Orthogonal Frequency Division Multiplexing), and OFDMA (Orthogonal Frequency Division Multiple Access).
- the delay time is calculated using a predefined formula or map with the transmission method, packet error rate, and average retransmission time as parameters.
- the delay time represents the wireless quality (QoE quality) of the terminal station 40 according to the current clustering method.
- step S204 the base station 30 notifies the central station 20 of the wireless environment of each terminal station 40, the wireless quality according to the current clustering method, and the service in use and its required QoE quality. If there are multiple base stations 30 communicating with the central station 20, all base stations 30 notify the central station 20 of the wireless environment, wireless quality, and the service in use and its required QoE quality of each terminal station 40.
- step S205 it is determined whether the required QoE quality is satisfied in each terminal station 40. If the required QoE quality is not satisfied, the process proceeds to step S206. Note that the condition for the determination in step S205 to be positive may be, for example, that the required QoE quality is satisfied in all terminal stations 40, or that the required QoE quality is satisfied in a certain percentage of terminal stations 40.
- step S206 the clustering method is changed. That is, based on the wireless environment of each terminal station 40, the cluster allocation for each terminal station 40 is updated so as to eliminate the difference between the wireless quality of each terminal station 40 and the required QoE quality.
- steps S202 to S205 are executed again. Then, steps S202 to S206 are repeatedly executed until the required QoE quality is satisfied in each terminal station 40, and the clustering method is changed so that the wireless quality is optimized. In other words, clustering that optimizes the wireless quality of each terminal station 40 is learned.
- step S206 If the required QoE quality is satisfied in step S206, the series of processes ends.
- the processes shown in the flowchart in FIG. 5 may be executed periodically or irregularly.
- the processes of steps S201 to S205 may be executed when a change is made to the service being used in any of the terminal stations 40.
- Wireless communication system 20 Central station 30 Base station 40 Terminal station
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Abstract
Description
本開示の実施形態に係る無線通信システムは、ユーザに対してWeb、音声通話、映像配信を含む多様な通信サービスを提供するシステムである。本開示の実施形態に係る無線通信システムの構成は図1に示される。図1に示されるように、無線通信システム10は、複数の端末局40、複数の基地局30、及び集中局20を含む。端末局40はUE(User Equipment)とも称される。基地局30はノードやアクセスポイントとも称される。
図2は、無線通信システム10の機能を示す機能ブロック図である。以下、無線通信システム10を構成する端末局40、基地局30、及び集中局20のそれぞれの機能について説明する。
ここで、クラスタリング管理装置としての集中局20のハードウェア構成について説明する。図3は、集中局20のハードウェア構成の例を示す図である。図3に示される集中局20は、通信インタフェース21、1又は複数のプロセッサ(以下、単にプロセッサという)22、プログラムメモリ23、及び情報メモリ25を備えるコンピュータである。プログラムメモリ23には、プログラムを構成する実行可能な複数のインストラクション24が記憶されている。情報メモリ25には、クラスタリング制御情報26、サービス毎の所要QoE品質情報27等の各種情報が記憶されている。通信インタフェース21、プログラムメモリ23、及び情報メモリ25は、プロセッサ22に通信可能に結合されている。
無線通信システム10における情報の流れは図4のようにまとめることができる。図4は、集中局20-基地局30間、及び基地局30-端末局40間の情報の流れを示すフローチャートである。このフローチャートに示される情報の流れは、本実施形態に係る無線通信方法によって実現される情報の流れでもある。フローチャートには、基地局30と無線により通信する端末局40として、第1端末局40-1と第2端末局40-2が示されている。第1端末局40-1と第2端末局40-2とは同一のクラスタに属する端末局でもよいし、異なるクラスタに属する端末局でもよい。
各端末局40で使用されるサービスは時間により変化する。各端末局40の無線環境もまた時間により変化する。ゆえに、無線通信システム10は、各端末局40の無線品質を最適化するためのクラスタリングの学習を繰り返し実行する。図5は、無線通信システム10で繰り返し実行される処理を示すフローチャートである。
20 集中局
30 基地局
40 端末局
Claims (8)
- 集中局と、
前記集中局と通信する基地局と、
前記基地局と無線により通信する、無線による端末局間通信を可能に構成された端末局と、を備え、
前記端末局は、
無線品質に関する情報と使用中のサービスに関する情報とを前記基地局に送信すること、を実行するように構成され、
前記基地局は、
前記集中局から受信したクラスタリング制御情報に従い前記端末局のクラスタリングを行うことと、
前記端末局から受信した情報と前記端末局の無線環境に関する情報とを前記集中局に送信することと、を実行するように構成され、
前記集中局は、
前記基地局から受信した情報に基づいて、前記端末局において前記使用中のサービスに応じた所要の無線品質が満たされるクラスタリングを学習することと、
学習されたクラスタリングに関する情報を前記クラスタリング制御情報として前記基地局に送信することと、を実行するように構成されている
ことを特徴とする無線通信システム。 - 請求項1に記載の無線通信システムにおいて、
前記端末局は、
前記端末局の現在のクラスタリング状況での伝搬損失、前記端末局のフェージング環境、前記端末局のユーザストリームに対する割当電力からパケット誤り率を計算することと、
前記端末局が現在使用している伝送方式、前記パケット誤り率、及び平均再送時間から遅延時間を計算することと、
前記遅延時間を前記無線品質に関する情報として送信することと、を実行するように構成されている
ことを特徴とする無線通信システム。 - 請求項1又は2に記載の無線通信システムにおいて、
前記基地局は、
前記端末局から受信した信号の受信電力の強度に関する情報と、前記端末局との通信に影響する障害物に関する情報と、前記端末局との通信に影響する周辺環境に関する情報の少なくとも1つを前記端末局の前記無線環境に関する情報として送信すること、を実行するように構成されている
ことを特徴とする無線通信システム。 - 無線による端末局間通信を可能に構成された端末局を用いた無線通信方法であって、
無線品質に関する情報と使用中のサービスに関する情報とを前記端末局から前記端末局と無線により通信する基地局に送信すること、
前記端末局から前記基地局に送信された情報と前記端末局の無線環境に関する情報とを前記基地局から前記基地局と通信する集中局に送信することと、
前記基地局から前記集中局に送信された情報に基づいて、前記端末局において前記使用中のサービスに応じた所要の無線品質が満たされるクラスタリングを学習することと、
学習されたクラスタリングに関する情報をクラスタリング制御情報として前記集中局から前記基地局に送信することと、
前記集中局から前記基地局に送信された前記クラスタリング制御情報に従い前記端末局のクラスタリングを行うことと、を含む
ことを特徴とする無線通信方法。 - 請求項4に記載の無線通信方法において、
前記無線品質に関する情報を前記端末局から前記基地局に送信することは、
前記端末局の現在のクラスタリング状況での伝搬損失、前記端末局のフェージング環境、前記端末局のユーザストリームに対する割当電力からパケット誤り率を計算することと、
前記端末局が現在使用している伝送方式、前記パケット誤り率、及び平均再送時間から遅延時間を計算することと、
前記遅延時間を前記無線品質に関する情報として送信することと、を含む
ことを特徴とする無線通信方法。 - 請求項4又は5に記載の無線通信方法において、
前記端末局の前記無線環境に関する情報を前記基地局から前記集中局に送信することは、
前記基地局が受信した前記端末局からの信号の受信電力の強度に関する情報と、前記基地局と前記端末局との通信に影響する障害物に関する情報と、前記基地局と前記端末局との通信に影響する周辺環境に関する情報の少なくとも1つを前記端末局の前記無線環境に関する情報として送信すること、を含む
ことを特徴とする無線通信方法。 - 無線による端末局間通信を可能に構成された端末局のクラスタリングを管理するクラスタリング管理装置であって、
1又は複数のプロセッサと、
前記1又は複数のプロセッサと結合され、実行可能な複数のインストラクションを記憶したプログラムメモリと、を備え、
前記複数のインストラクションは、前記1又は複数のプロセッサに、
前記端末局の無線品質に関する情報と、前記端末局が使用中のサービスに関する情報と、前記端末局の無線環境に関する情報とを前記端末局と無線による通信を行う基地局から取得することと、
前記基地局から取得された情報に基づいて、前記端末局において前記使用中のサービスに応じた所要の無線品質が満たされるクラスタリングを学習することと、
学習されたクラスタリングに関する情報を前記基地局に送信することと、を実行させるように構成されている
ことを特徴とするクラスタリング管理装置。 - 無線による端末局間通信を可能に構成された端末局の無線品質に関する情報と、前記端末局が使用中のサービスに関する情報と、前記端末局の無線環境に関する情報とを前記端末局と無線による通信を行う基地局から取得することと、
前記基地局から取得された情報に基づいて、前記端末局において前記使用中のサービスに応じた所要の無線品質が満たされるクラスタリングを学習することと、
学習されたクラスタリングに関する情報を前記基地局に送信することと、をコンピュータに実行させるように構成されている
ことを特徴とするプログラム。
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2016012842A (ja) * | 2014-06-30 | 2016-01-21 | 日本無線株式会社 | 通信システム |
| JP2017108315A (ja) * | 2015-12-10 | 2017-06-15 | Kddi株式会社 | 無線アクセスネットワークの管理装置及びプログラム |
| JP2018133832A (ja) * | 2018-06-04 | 2018-08-23 | 株式会社Nttドコモ | ユーザ装置 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2016012842A (ja) * | 2014-06-30 | 2016-01-21 | 日本無線株式会社 | 通信システム |
| JP2017108315A (ja) * | 2015-12-10 | 2017-06-15 | Kddi株式会社 | 無線アクセスネットワークの管理装置及びプログラム |
| JP2018133832A (ja) * | 2018-06-04 | 2018-08-23 | 株式会社Nttドコモ | ユーザ装置 |
Non-Patent Citations (2)
| Title |
|---|
| "Study on NR QoE (Quality of Experience) management and optimizations for diverse services (Release 17", 3GPP TR 38.890 V17. 0.0 |
| Z. MANL. DAPENGL. ZHUANGG. YIN: "QoE Management for 5G New Radio", ZTE COMMUNICATIONS, vol. 19, no. 3, September 2021 (2021-09-01) |
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