WO2024101169A1 - 通信装置、ｒｉｃ、方法、及びプログラム - Google Patents

通信装置、ｒｉｃ、方法、及びプログラム Download PDF

Info

Publication number
WO2024101169A1
WO2024101169A1 PCT/JP2023/038682 JP2023038682W WO2024101169A1 WO 2024101169 A1 WO2024101169 A1 WO 2024101169A1 JP 2023038682 W JP2023038682 W JP 2023038682W WO 2024101169 A1 WO2024101169 A1 WO 2024101169A1
Authority
WO
WIPO (PCT)
Prior art keywords
ric
request message
communication device
communication
measurement data
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.)
Ceased
Application number
PCT/JP2023/038682
Other languages
English (en)
French (fr)
Japanese (ja)
Inventor
吉則 渡邉
瑠美 松村
研次 川口
雅之 上田
英城 小塚
克紀 伊達
英士 高橋
健夫 大西
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.)
NEC Corp
Original Assignee
NEC Corp
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 NEC Corp filed Critical NEC Corp
Priority to JP2024557315A priority Critical patent/JPWO2024101169A1/ja
Publication of WO2024101169A1 publication Critical patent/WO2024101169A1/ja
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Images

Classifications

    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/02—Traffic management, e.g. flow control or congestion control
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W80/00—Wireless network protocols or protocol adaptations to wireless operation
    • H04W80/02—Data link layer protocols
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W92/00—Interfaces specially adapted for wireless communication networks
    • H04W92/04—Interfaces between hierarchically different network devices
    • H04W92/12—Interfaces between hierarchically different network devices between access points and access point controllers

Definitions

  • This disclosure relates to a communication device, a RIC, a method, and a program.
  • radio access networks have been used that separate the baseband and radio sections of a base station and connect the baseband and radio sections via a fronthaul.
  • the O-RAN fronthaul specifications defined by the O-RAN (Open-Radio Access Network) Alliance prescribe the fronthaul specifications between the O-RU (Radio Unit), which corresponds to the radio section, and the O-DU (Distributed Unit) and O-CU (Central Unit), which correspond to the baseband section.
  • O-RAN fronthaul specifications defined by the O-RAN (Open-Radio Access Network) Alliance prescribe the fronthaul specifications between the O-RU (Radio Unit), which corresponds to the radio section, and the O-DU (Distributed Unit) and O-CU (Central Unit), which correspond to the baseband section.
  • One of the goals of the O-RAN fronthaul specifications is to facilitate the connection of O-RUs from vendors different from those of O-DUs, thereby realizing multi-vendor radio access networks.
  • Non-patent document 1 specifies the technical specifications established by the O-RAN Alliance. Specifically, non-patent document 1 specifies the E2 Service Model (E2SM) "Key Performance Measurement” (KPM). E2SM KPM specifies the operation of reporting cell-level performance measurement results related to the RAN (Radio Access Network) functions of a 5G (5th Generation) network.
  • E2SM E2 Service Model
  • KPM Key Performance Measurement
  • Non-Patent Document 1 lists the measurement items that can be collected for each UE (User Equipment) from among the measurement items defined in Non-Patent Document 2, which is a technical specification of 3GPP (registered trademark) (3rd Generation Partnership Project), and the measurement items defined in Chapter 7.10 of Non-Patent Document 1.
  • a factor that deteriorates the communication quality of the RAN is, for example, a delay caused by retransmission control.
  • Retransmission control is performed when a transmission error occurs. Specifically, retransmission control is performed using HARQ (Hybrid Automatic Repeat reQuest) in the MAC (Medium Access Control) layer.
  • HARQ Hybrid Automatic Repeat reQuest
  • Whether or not a delay occurs due to retransmission control in the MAC layer can be determined by monitoring the occurrence of errors in the transport blocks that constitute the MAC layer for each UE.
  • items related to the transport blocks that constitute the MAC layer are not specified as measurement items that can be collected for each UE.
  • Non-Patent Document 1 there is a problem that it is not possible to identify the occurrence of delays due to retransmission control as a cause of deterioration in communication quality.
  • Non-Patent Document 1 there is a problem that it is not possible to identify other causes of deterioration in communication quality that are identified by monitoring the occurrence of errors in the transport blocks for each UE.
  • Other causes of deterioration in communication quality include, for example, a decrease in throughput and an increase in the error occurrence rate due to the selection of an inappropriate MCS (Modulation and Coding Scheme) index in the MAC layer.
  • MCS Modulation and Coding Scheme
  • one of the objectives of this disclosure is to provide a communication device, RIC, method, and program that enables the collection of measurement items necessary to identify the causes of degradation in communication quality.
  • the communication device is a communication device that communicates with a RIC (Radio Access Network Intelligent Controller), and has a receiving unit that receives a request message from the RIC requesting that measurement data related to a transport block transmitted between the communication device and at least one communication terminal be reported in association with each of the communication terminals, and a transmitting unit that, upon receiving the request message, transmits a message including the measurement data associated with each of the communication terminals to the RIC.
  • RIC Radio Access Network Intelligent Controller
  • the RIC includes a transmitter that transmits a request message to the communication device requesting that measurement data related to a transport block transmitted between the communication device and at least one communication terminal be associated with each of the communication terminals and reported, and a receiver that receives a message including the measurement data associated with each of the communication terminals from the communication device that has received the request message.
  • the communication method is a method implemented by a Radio Access Network Intelligent Controller (RIC), and includes the steps of: transmitting a request message to the communication device, requesting that measurement data related to a transport block transmitted between the communication device and at least one communication terminal be reported in association with each of the communication terminals; and receiving a message including the measurement data associated with each of the communication terminals from the communication device that has received the request message.
  • RIC Radio Access Network Intelligent Controller
  • the program according to the fourth aspect of the present disclosure causes a computer to transmit a request message to a communication device requesting that measurement data related to a transport block transmitted between the communication device and at least one communication terminal be reported in association with each of the communication terminals, and to receive a message including the measurement data associated with each of the communication terminals from the communication device that has received the request message.
  • This disclosure provides a communications device, RIC, method, and program that enable the collection of measurement items necessary to identify the causes of degradation in communication quality.
  • FIG. 2 is a configuration diagram of a RIC according to the present disclosure.
  • FIG. 1 is a configuration diagram of a communication device according to the present disclosure.
  • FIG. 2 illustrates a method performed in a RIC according to the present disclosure.
  • FIG. 2 illustrates a method performed in a communication device according to the present disclosure.
  • FIG. 1 is a configuration diagram of a communication system according to the present disclosure. This is a configuration diagram of the Near-RT RIC disclosed herein.
  • FIG. 2 is a configuration diagram of an O-DU according to the present disclosure.
  • FIG. 2 is a diagram showing a process flow for collecting measurement data according to the present disclosure.
  • a diagram showing the format of the RIC ACTION DEFINITION IE according to the present disclosure.
  • FIG. 11 is a diagram showing a flow of measurement data transmission processing according to the present disclosure.
  • FIG. 1A shows a configuration example of a communication system 10 including a Radio Access Network Intelligent Controller (RIC) 20 and a communication device 30.
  • the communication device 30 may be, for example, a base station device.
  • the communication device 30 may be an O-RAN Central Unit (O-CU) or an O-RAN Distributed Unit (O-DU) constituting the RAN architecture defined in the O-RAN Alliance.
  • the O-CU and O-DU may be referred to as CU and DU.
  • the RIC 20 may be a logical node that optimizes RAN elements or RAN resources.
  • the logical node may perform processing equivalent to a function.
  • the RIC 20 may be a physical device corresponding to an entity. The name RIC is not limited to this.
  • the RIC 20 described in this embodiment may be a logical node or a physical device (e.g., a management node, a management device) with a different name that has a function equivalent to that of the RIC 20.
  • the O-CU and O-DU may also be logical nodes or physical devices.
  • RIC 20 has a transmitting unit 21 and a receiving unit 22.
  • Transmitting unit 21 and receiving unit 22 may be software or modules in which processing is performed by a processor executing a program stored in a memory.
  • transmitting unit 21 and receiving unit 22 may be hardware such as a circuit or chip.
  • the RIC 20 communicates with the communication devices 30.
  • the RIC 20 collects information held by each communication device 30 in order to design parameters of the communication devices 30, which are RAN elements, or to optimize the operation of the communication devices 30.
  • the transmission unit 21 transmits a request message to the communication device 30, requesting that measurement data related to transport blocks transmitted between the communication device 30 and at least one communication terminal be associated with each communication terminal and reported.
  • the RIC 20 in this embodiment may be a Near-RT (Near-Real-Time) RIC.
  • the RIC 20 may be a Non-RT (Non-Real-Time) RIC.
  • the transport block indicates a unit of data that is mapped to a physical channel or a physical layer, such as PDSCH (Physical Downlink Shared Channel) or PUSCH (Physical Uplink Shared Channel). Mapping of the transport block to the physical channel is performed in the MAC layer.
  • the measurement data related to the transport block is data indicating the measurement result of the data in units of the transport block.
  • the measurement data may be, for example, the number of transport blocks transmitted between the communication terminal and the communication device 30, the number of transport blocks in which an error occurs, etc.
  • the measurement data may also include measurement data related to the transport block transmitted from the communication terminal to the communication device 30 and measurement data related to the transport block transmitted from the communication device 30 to the communication terminal. Data transmission from the communication terminal to the communication device 30 corresponds to communication related to the uplink, and data transmission from the communication device 30 to the communication terminal corresponds to communication related to the downlink.
  • the receiving unit 22 receives a message including measurement data associated with each communication terminal from the communication device 30 that received the request message.
  • the communication device 30 has a receiving unit 31 and a transmitting unit 32.
  • the receiving unit 31 and the transmitting unit 32 may be software or a module in which processing is performed by a processor executing a program stored in a memory.
  • the receiving unit 31 and the transmitting unit 32 may be hardware such as a circuit or a chip.
  • the receiving unit 31 receives a request message from the RIC 20 requesting that measurement data related to a transport block transmitted between the communication device 30 and at least one communication terminal be reported in association with each communication terminal.
  • the transmission unit 32 When the transmission unit 32 receives the request message, it transmits a message including the measurement data associated with each communication terminal to the RIC 20.
  • the communication device 30 may collect the measurement data associated with each communication terminal from other communication devices. Alternatively, the communication device 30 may generate measurement data related to the transport block for each communication terminal. The communication device 30 transmits a message including the identification information of the communication terminal and the measurement data associated with the identification information to the RIC 20.
  • transmitting unit 21 transmits a request message to communication device 30 requesting that measurement data related to a transport block transmitted between communication device 30 and at least one communication terminal be reported in association with each communication terminal (S1).
  • receiving unit 22 receives a message including the measurement data associated with each communication terminal from communication device 30 that has received the request message (S2).
  • the receiver 31 receives a request message from the RIC 20 requesting that measurement data related to a transport block transmitted between the communication device 30 and at least one communication terminal be associated with each communication terminal and reported (S5).
  • the transmitter 32 transmits a message including the measurement data associated with each communication terminal to the RIC 20 (S6).
  • the RIC 20 requests the communication device 30 to report measurement data related to the transport block associated with each communication terminal, and obtains the measurement data associated with each communication terminal from the communication device 30. This enables the RIC 20 to analyze data related to the transport block for each communication terminal. This enables the RIC 20 to identify the cause of the degradation in communication quality. Specifically, the RIC 20 can determine whether the cause of the degradation in communication quality is related to the occurrence or absence of an error in the transport block.
  • the communication system in Fig. 2 includes a Near-RT (Near-Real-Time) RIC 40, an E2 node 50, an O-RU 80, an SMO (Service Management and Orchestration) 90, and a UE 110.
  • the E2 node 50 includes an O-CU 60 and an O-DU 70.
  • the SMO 90 includes a Non-RT (Non-Real-Time) RIC 100.
  • Each device included in the communication system may be a computer device that operates by a processor executing a program stored in a memory.
  • UE110 is used as a general term for a communication terminal.
  • UE110 may be a mobile phone terminal, a smartphone terminal, or an IoT (Internet of Things) terminal.
  • UE110 may support a wireless communication standard known as 5G in order to perform wireless communication with O-RU80.
  • the E2 node 50 is a logical node that terminates the E2 interface.
  • the E2 interface is an interface defined between the E2 node 50 and the Near-RT RIC 40.
  • the E2 interface is an interface defined between the O-CU 60 and the Near-RT RIC 40, and further between the O-DU 70 and the Near-RT RIC 40.
  • the E2 node 50 may be a physical device corresponding to either the O-CU 60 or the O-DU 70, or may be a physical device in which the O-CU 60 and the O-DU 70 are integrated.
  • the E2 interface is an interface defined between the Near-RT RIC 40 and the physical device in which the O-CU 60 and the O-DU 70 are integrated.
  • O-CU60 may be, for example, a logical node that hosts RRC (Radio Resource Control) and PDCP (Packet Data Convergence Protocol).
  • O-CU60 may be a physical device that is equipped with O-CU, which is a logical node.
  • Hosting RRC and PDCP may be rephrased as terminating the RRC protocol and PDCP, or executing processing related to the RRC protocol and PDCP, etc.
  • hosting RRC and PDCP by O-CU60 may be rephrased as O-CU60 executing processing related to the RRC layer and PDCP layer, etc.
  • the term host may be rephrased as described above.
  • O-CU-CP C-Plane
  • O-CU-UP U-Plane
  • O-DU70 may be a logical node that hosts RLC (Radio Link Control) and MAC (Medium Access Control). Furthermore, O-DU70 may be a logical node that hosts higher-level functions of the physical (PHY) layer. Alternatively, O-DU70 may be a physical device that includes an O-DU, which is a logical node. Furthermore, O-DU70 may perform PDCP-related processing instead of or together with O-CU60.
  • the higher-level functions of the physical layer may be, for example, encoding and modulation processing, and further, decoding and demodulation processing, etc.
  • O-RU 80 may be a logical node that hosts or performs lower-level physical layer functions and RF (Radio Frequency) processing.
  • O-RU 80 may be a physical device that includes an O-RU, which is a logical node.
  • the lower-level physical layer functions may be, for example, FFT (Fast Fourier Transform)/IFFT (Inverse FFT) processing, BF (Beam Forming) processing, etc.
  • the SMO 90 manages or supports the RAN domain. In other words, the SMO 90 performs control or optimization of the RAN domain.
  • the RAN domain may be, for example, a network including an O-CU 60, an O-DU 70, and an O-RU 80.
  • SMO 90 may support FCAPS for Near-RT RIC 40, O-CU 60, and O-DU 70 via the O1 interface.
  • FCAPS indicates functions to perform Fault Management, Configuration Management, Accounting Management, Performance Management, and Security Management.
  • SMO 90 may also support FCAPS for O-RU 80.
  • Non-RT RIC 100 possessed by the SMO 90 may execute processing related to RAN optimization, for example, by communicating with the Near-RT RIC 40 via the A1 interface.
  • the RAN optimization may involve, for example, generating a control policy related to the RAN and notifying the Near-RT RIC 40 of the control policy.
  • the Near-RT RIC 40 is a logical function that performs near real-time control and optimization of RAN elements and resources.
  • the Near-RT RIC 40 may be a physical device equipped with a logical function that performs near real-time control and optimization of RAN elements and resources.
  • the RAN elements may be, for example, the O-CU 60 and the O-DU 70.
  • the Near-RT RIC 40 collects fine grained data from the O-CU 60 or the O-DU 70 via the E2 interface.
  • the near real-time control may be, for example, control that is performed at a period of about 10 ms to 1 s.
  • the detailed data may be, for example, referred to as near real-time information.
  • the near real-time information may be, for example, information on a UE basis or information on a cell basis.
  • the Near-RT RIC 40 has a control unit 41 and a communication unit 42.
  • the control unit 41 and the communication unit 42 may be software or a module in which processing is performed by a processor executing a program stored in a memory.
  • the control unit 41 and the communication unit 42 may be hardware such as a circuit or a chip.
  • the control unit 41 generates a request message requesting the E2 node 50 to report information in order to collect information from the E2 node 50.
  • the information collected by the control unit 41 may be, for example, measurement data related to a transport block transmitted between the UE 110 and the O-RU 80.
  • the measurement data related to the transport block may be data related to the MAC layer. Processing related to the MAC layer is performed in the O-DU 70. Therefore, the control unit 41 may set the destination of the request message to the O-DU 70. In other words, when collecting measurement data related to a transport block, the Near-RT RIC 40 may send a request message to the O-DU 70 as the E2 node 50.
  • control unit 41 may use the measurement data received from the E2 node 50 to determine whether an error has occurred in a transport block between the UE 110 and the O-RU 80. Furthermore, if the control unit 41 detects that the error occurrence rate in a transport block is higher than a predetermined value, it may analyze the cause of the degradation in communication quality occurring between the UE 110 and the O-RU 80. Alternatively, if the control unit 41 detects that the error occurrence rate is lower than a predetermined value, it may analyze the cause of the degradation in communication quality occurring between the UE 110 and the O-RU 80.
  • the communication unit 42 sends a request message to the E2 node 50 via the E2 interface to request an information report, and also receives a message including measurement data.
  • the O-DU 70 has a control unit 71 and a communication unit 72.
  • the control unit 71 and the communication unit 72 may be software or modules that perform processing by a processor executing a program stored in a memory.
  • the control unit 71 and the communication unit 72 may be hardware such as a circuit or a chip.
  • the control unit 71 receives a request message from the Near-RT RIC 40 via the communication unit 72, requesting that measurement data regarding the transport block be reported. Upon receiving the request message, the control unit 71 generates a message including measurement data regarding the transport block. The control unit 71 transmits the message including the measurement data to the Near-RT RIC 40 via the communication unit 72. The control unit 71 includes in the message as measurement data information regarding the number of transport blocks in which an error has occurred at the MAC layer, and further, the number of transport blocks transmitted and received between the UE 110 and the O-RU 80.
  • Figure 5 refers to O-RAN.WG3.E2AP-v02.02, which specifies specifications related to E2AP (E2 Application Protocol) in the O-RAN Alliance.
  • the Near-RT RIC 40 sends a RIC SUBSCRIPTION REQUEST message to the E2 node 50 (S11).
  • the RIC SUBSCRIPTION REQUEST message includes a RIC ACTION DEFINITION IE as an information element.
  • the RIC ACTION DEFINITION IE may be used to request execution of the E2 REPORT service in the O-DU 70.
  • Requesting execution of the E2 REPORT service may be rephrased as triggering the E2 REPORT service.
  • the E2 REPORT service may simply be referred to as the REPORT service.
  • the REPORT service may, for example, be exposing information about the RAN control and UE held by the O-DU 70. Exposing information about the RAN control and UE by the O-DU 70 may be transmitting information about the RAN control and UE to the Near-RT RIC 40.
  • the information exposed by the O-DU 70 may, for example, be information about the cell, information about the E2 node, or information about the UE.
  • the O-DU 70 may transmit information about the cell, information about the E2 node, or information about the UE to the Near-RT RIC 40.
  • the information about the cell, the information about the E2 node, and the information about the UE may be, for example, E2 Node Information, Cell related Information, and UE Information used to monitor changes occurring in the cell, the E2 node, and the UE.
  • the Near-RT RIC 40 selects a format corresponding to the collection of measurement data, and sets information specifying the measurement data to be collected in the selected format. For example, the Near-RT RIC 40 collects measurement data related to transport blocks on a UE basis or for each UE.
  • format 2 may be set, which allows setting of a UE ID, which is identification information of the UE for which measurement data is to be collected.
  • the format refers to E2SM-KPM-Action Definition Formats 1 to 5 specified in Non-Patent Document 1.
  • format 2 corresponds to E2SM-KPM-Action Definition Format 2
  • format 1 corresponds to E2SM-KPM-Action Definition Format 1.
  • Format 2 indicates a format in which the UE ID can be set. Furthermore, in the Subscription Information in Format 2, Format 1 is set, in which the measurement data to be collected can be set.
  • Format 1 which can be selected as the format of Subscription Information.
  • the measurement data to be collected may be set, for example, to the Measurement Name shown in Format 1.
  • FIG. 8 and FIG. 9 we will explain a data table showing the measurement data that can be set to the Measurement Name shown in Format 1.
  • the data table shown in FIG. 8 and FIG. 9 shows a list of measurement data that can be measured on a UE basis. Although the data table is divided into FIG. 8 and FIG. 9 due to drawing constraints, it may show a single data table. In other words, like FIG. 8, FIG. 9 also shows data related to "The type of the original measurements", "The corresponding per-UE and per-UE-per slice measurements", “The corresponding per-QoS-flow and per-slice-per-QoS flow measurements", and "Notes".
  • the Near-RT RIC 40 may store the data tables shown in Figures 8 and 9 in memory, etc.
  • a list of parameter names in the group corresponding to "The type of the original measurements" shown in Figures 8 and 9 may be stored in memory, etc. as a data table.
  • parameter names such as "Total error number of DL TBs" of the group "TB related Measurements” in Non-Patent Document 2 may be stored in memory, etc.
  • the Near-RT RIC 40 may refer to the data table and select measurement data to be set in the Measurement Name of format 1.
  • the Near-RT RIC 40 may output an error message when instructed to set measurement data other than that shown in the data tables shown in Figures 8 and 9.
  • Measurement data relating to the transport block is shown in Figure 9, including "Total number of UL initial TBs", “Total number of DL initial TBs", “Initial error number of DL TBs”, “Error number of UL initial TBs”, “Total number of UL TBs”, “Total number of DL TBs”, “Total error number of UL TBs”, “Total error number of DL TBs”, “Residual error number of UL TBs”, and “Residual error number of DL TBs”.
  • Total number of (UL/DL) TBs indicates the number of transport blocks transferred between the specified UE and O-RU 80.
  • the Near-RT RIC 40 can specify whether to collect the number of transport blocks in the uplink or the number of transport blocks in the downlink by specifying UL or DL.
  • the Near-RT RIC 40 can specify the total number of transport blocks in the uplink and downlink.
  • Total error number of (UL/DL) TBs indicates the number of transport blocks containing errors among the transport blocks transferred between the specified UE and O-RU 80.
  • the Near-RT RIC 40 can also specify the uplink or downlink for “Total error number of (UL/DL) TBs,” or can also specify both the uplink and downlink.
  • format 5 shown in FIG. 10 may be used as a format capable of setting the UE ID.
  • Format 5 corresponds to E2SM-KPM-Action Definition Format 5.
  • format 3 or format 4 may be used, which specifies predetermined conditions and returns measurement data of UEs that meet the conditions on a UE-by-UE basis.
  • Format 3 and format 4 correspond to E2SM-KPM-Action Definition Format 3 and E2SM-KPM-Action Definition Format 4, respectively.
  • the E2 node 50 when it receives the RIC SUBSCRIPTION REQUEST message, it transmits a RIC SUBSCRIPTION RESPONSE message (S12).
  • the Near-RT RIC 40 may start a timer when it transmits the RIC SUBSCRIPTION REQUEST message.
  • the timer may be used, for example, to determine whether or not a RIC SUBSCRIPTION RESPONSE message has been received within a predetermined period of time after the RIC SUBSCRIPTION REQUEST message has been transmitted.
  • the timer may expire when the predetermined period has elapsed and be stopped. Alternatively, the timer may expire when the predetermined period has elapsed and count the predetermined period again.
  • the Near-RT RIC 40 may determine that the RIC SUBSCRIPTION REQUEST message has been successfully accepted at the E2 node 50. In this case, the Near-RT RIC 40 may end the timer when it receives the RIC SUBSCRIPTION RESPONSE message. If the Near-RT RIC 40 does not receive a RIC SUBSCRIPTION RESPONSE message within a predetermined period, it may determine that the RIC SUBSCRIPTION REQUEST message has not been successfully accepted. In this case, the Near-RT RIC 40 may send the RIC SUBSCRIPTION REQUEST message again, or may terminate processing related to the RIC SUBSCRIPTION REQUEST.
  • the Near-RT RIC 40 may receive a RIC SUBSCRIPTION FAILURE message from the E2 node 50. If the Near-RT RIC 40 receives a RIC SUBSCRIPTION FAILURE message, it may terminate the timer.
  • the E2 node 50 receives a RIC SUBSCRIPTION REQUEST message.
  • the E2 node 50 then generates measurement data regarding the transport blocks transmitted and received between the O-RU 80 and the UE identified from the information in the RIC ACTION DEFINITION IE.
  • the E2 node 50 transmits a RIC INDICATION message including the generated measurement data to the Near-RT RIC 40 (S21).
  • the RIC INDICATION message may be a message used to execute the REPORT service.
  • the RIC INDICATION message includes a RIC INDICATION MESSAGE IE in which the measurement data is set.
  • the E2 node 50 selects a format corresponding to the measurement data report and sets the generated measurement data in the selected format.
  • format 1 selected as the format of the RIC INDICATION MESSAGE IE will be described.
  • the format refers to E2SM-KPM Indication Message Formats 1 to 3 described in Non-Patent Document 1. If E2SM-KPM-Action Definition Format 2 is selected in step S11 of FIG. 5, the E2 node 50 selects format 1 (E2SM-KPM Indication Message Format 1). Also, if E2SM-KPM-Action Definition Format 3 is selected in step S11 of FIG. 5, the E2 node 50 selects format 2 (E2SM-KPM Indication Message Format 2). Also, in step S11 of FIG. 5, if E2SM-KPM-Action Definition Format 4 or 5 is selected, the E2 node 50 selects format 3 (E2SM-KPM Indication Message Format 3).
  • the value of the measurement data related to the transport block is set in the Measurement Record specified in the IE/Group Name of format 1 shown in Figure 12. Specifically, the value of the measurement data is set to the Integer Value in the CHOICE Measured Value. Furthermore, the measurement item related to the measurement data is set in the Measurement Name in the CHOICE Measurement Type specified in the IE/Group Name of format 1 shown in Figure 12.
  • the Measurement Name may be set to any of "Total number of DL initial TBs", “Initial error number of DL TBs”, “Total number of DL TBs”, “Total error number of DL TBs”, “Residual error number of DL TBs”, “Total number of UL initial TBs”, “Error number of UL initial TBs”, “Total number of UL TBs”, “Total error number of UL TBs”, and “Residual error number of UL TBs”.
  • the formats shown in Figures 12 and 13 may be used for each measurement item. In other words, when there are two measurement items, the format of Figure 12 may be used for each measurement item. In other words, the RIC INDICATION MESSAGE IE may have multiple formats depending on the number of measurement items.
  • E2SM-KPM Indication Message Format 3 In E2SM-KPM-Action Definition Format 5, which can be set in step S11 of Figure 5, it is possible to specify multiple UE IDs. Therefore, in E2SM-KPM Indication Message Format 3, at least one UE ID specified in E2SM-KPM-Action Definition Format 5, which is the target of reporting, is set.
  • the communication unit 42 sends a RIC SUBSCRIPTION REQUEST message to the E2 node 50 (S31).
  • the destination of the RIC SUBSCRIPTION REQUEST message is set to, for example, O-DU 70.
  • the RIC SUBSCRIPTION REQUEST message includes information for identifying the UE from which data is to be collected, such as the UE ID, and items of measurement data to be collected.
  • the control unit 41 starts a timer when the RIC SUBSCRIPTION REQUEST message is sent from the communication unit 42.
  • control unit 41 determines whether or not a RIC SUBSCRIPTION RESPONSE message has been received from the E2 node 50 within a predetermined period of time (S32). Within the predetermined period of time may be rephrased as before the timer expires.
  • control unit 41 determines that it has received a RIC SUBSCRIPTION RESPONSE message within the specified period, it then receives a RIC INDICATION message (S33). If the control unit 41 determines that it has not received a RIC SUBSCRIPTION RESPONSE message within the specified period, it terminates the processing related to the RIC SUBSCRIPTION REQUEST. For example, the control unit 41 may send a RIC SUBSCRIPTION DELETE REQUEST message to the E2 node 50 to cancel the processing related to the RIC SUBSCRIPTION REQUEST.
  • control unit 41 may ignore the received message. Ignoring the received message may be rephrased as discarding or deleting the received message.
  • the communication unit 72 receives a RIC SUBSCRIPTION REQUEST message (S41).
  • the control unit 71 determines whether or not to execute the REPORT Service in accordance with the RIC ACTION DEFINITION IE (S42). For example, the control unit 71 may determine not to execute the REPORT Service if the settings in the RIC ACTION DEFINITION IE contain deficiencies or contradictions. The control unit 71 may determine to execute the REPORT Service if the settings in the RIC ACTION DEFINITION IE are appropriate.
  • the control unit 71 When the control unit 71 determines to execute the REPORT Service, it transmits a RIC INDICATION message including the measurement data to the Near-RT RIC 40 (S43). For example, the control unit 71 may treat the number of transport blocks transmitted to the UE 110 at the MAC layer and the number of transport blocks received from the UE 110 as the measurement data for the "Total number of DL TBs" and the “Total number of UL TBs", respectively. Furthermore, the control unit 71 may determine the number of transport blocks in which an error occurred in the downlink by receiving feedback from the UE 110. Furthermore, the control unit 71 may check the number of transport blocks received from the UE 110 and determine the number of transport blocks in which an error occurred in the uplink. The number of transport blocks in which an error occurred may be treated as the measurement data for the "Total error number of DL TBs" and the "Total error number of UL TBs", respectively.
  • control unit 71 may send a RIC SUBSCRIPTION FAILURE message to the Near-RT RIC 40 (S44).
  • the Near-RT RIC 40 can collect measurement data related to the transport block associated with the UE from the E2 node 50. This allows the Near-RT RIC 40 to determine whether or not a deterioration in communication quality has occurred due to the occurrence of an error in the transport block.
  • the Near-RT RIC 40 collects measurement data related to the transport block associated with the UE, but this is not limited to this. That is, the Non-RT RIC 100 may collect measurement data related to the transport block associated with the UE. In this case, the Non-RT RIC 100 may collect measurement data related to the transport block associated with the UE from the E2 node 50 using the O1 interface shown in FIG. 2.
  • the Non-RT RIC 100 may collect measurement data related to the transport block associated with the UE from the E2 node 50 using an interface other than the O1 interface shown in FIG. 2. Furthermore, the Non-RT RIC 100 may report the measurement data collected from the E2 node 50 to the Near-RT RIC 40 using the A1 interface.
  • FIG. 16 is a block diagram showing an example configuration of a Near-RT RIC 40, an O-CU 60, and an O-DU 70 (hereinafter referred to as Near-RT RIC 40, etc.).
  • the Near-RT RIC 40, etc. includes a network interface 1201, a processor 1202, and a memory 1203.
  • the network interface 1201 is used to communicate with each other's network nodes.
  • the network interface 1201 may include, for example, a network interface card (NIC) that complies with the IEEE 802.3 series.
  • NIC network interface card
  • IEEE stands for the Institute of Electrical and Electronics Engineers.
  • the processor 1202 reads out and executes software (computer programs) from the memory 1203 to perform the processing of the Near-RT RIC 40 and the like described using the flowcharts in the above-mentioned embodiments.
  • the processor 1202 may be, for example, a microprocessor, an MPU, or a CPU.
  • the processor 1202 may include multiple processors.
  • Memory 1203 is composed of a combination of volatile memory and non-volatile memory. Memory 1203 may include storage located away from processor 1202. In this case, processor 1202 may access memory 1203 via an I/O (Input/Output) interface (not shown).
  • I/O Input/Output
  • the memory 1203 is used to store a group of software modules.
  • the processor 1202 can read out these software modules from the memory 1203 and execute them to perform processing such as the Near-RT RIC 40 described in the above embodiment.
  • each of the processors in the Near-RT RIC 40 etc. in the above-mentioned embodiments executes one or more programs including a set of instructions for causing a computer to execute the algorithm explained using the drawings.
  • the program includes instructions (or software code) that, when loaded into a computer, cause the computer to perform one or more functions described in the embodiments.
  • the program may be stored on a non-transitory computer-readable medium or tangible storage medium.
  • computer-readable medium or tangible storage medium may include random-access memory (RAM), read-only memory (ROM), flash memory, solid-state drive (SSD) or other memory technology, CD-ROM, digital versatile disc (DVD), Blu-ray® disk or other optical disk storage, magnetic cassette, magnetic tape, magnetic disk storage or other magnetic storage device.
  • the program may be transmitted on a transitory computer-readable medium or communication medium.
  • transitory computer-readable medium or communication medium may include electrical, optical, acoustic, or other forms of propagated signals.
  • a part or all of the above-described embodiments can be described as, but is not limited to, the following supplementary notes.
  • Appendix 1 A communication device that communicates with a Radio Access Network Intelligent Controller (RIC), A receiving unit that receives from the RIC a request message requesting that measurement data related to a transport block transmitted between the communication device and at least one communication terminal be associated with each of the communication terminals and reported; A communication device having a transmission unit that, upon receiving the request message, transmits a message including the measurement data associated with each of the communication terminals to the RIC.
  • the request message 2.
  • Appendix 3) The request message: 3.
  • the communication device of claim 2 further comprising measurement items related to the communication terminal to be reported.
  • the measurement items related to the communication terminal include: The communication device according to claim 3, wherein the item is used to measure the rate of error occurrence of a transport block.
  • Appendix 5 A communication device described in any one of Supplementary Notes 2 to 4, wherein the request message includes a first format, among a plurality of formats defining an action to be performed by the communication device, in which information specifying the communication terminal can be set.
  • the communication device is an E2 node, the request message is a RIC SUBSCRIPTION REQUEST message transmitted between the RIC and the communication device;
  • the communication device described in Appendix 5 wherein the RIC SUBSCRIPTION REQUEST message includes E2SM-KPM Action Definition Format 2, E2SM-KPM Action Definition Format 3, E2SM-KPM Action Definition Format 4, or E2SM-KPM Action Definition Format 5 as the first format in which information specifying the communication terminal and measurement items related to the communication terminal are set.
  • a transmitter that transmits, to the communication device, a request message requesting that measurement data related to a transport block transmitted between the communication device and at least one communication terminal be associated with each of the communication terminals and reported;
  • a RIC comprising: a receiving unit that receives a message including the measurement data associated with each of the communication terminals from the communication device that has received the request message.
  • the request message 8.
  • the request message 9. The RIC of claim 8, further comprising measurement items related to the communication terminal to be reported.
  • the measurement items related to the communication terminal include: The RIC described in Supplementary Note 9, which is an item used to measure the occurrence rate of errors in a transport block.
  • the communication device is an E2 node
  • the request message is a RIC SUBSCRIPTION REQUEST message transmitted between the RIC and the communication device;
  • the RIC described in Appendix 11, wherein the RIC SUBSCRIPTION REQUEST message includes E2SM-KPM Action Definition Format 2, E2SM-KPM Action Definition Format 3, E2SM-KPM Action Definition Format 4, or E2SM-KPM Action Definition Format 5 as the first format in which information specifying the communication terminal and measurement items related to the communication terminal are set. (Appendix 13) 1.
  • a method implemented by a Radio Access Network Intelligent Controller comprising: transmitting a request message to the communication device, requesting that measurement data related to a transport block transmitted between the communication device and at least one communication terminal be associated with each of the communication terminals and reported; receiving a message in which the measurement data is associated with each of the communication terminals from the communication device that received the request message.
  • Appendix 14 Transmitting a request message to the communication device, requesting that measurement data related to a transport block transmitted between the communication device and at least one communication terminal be associated with each of the communication terminals and reported;
  • a method implemented by a communication device comprising: receiving a request message from a Radio Access Network Intelligent Controller (RIC) requesting that measurement data related to a transport block transmitted between the communication device and at least one communication terminal be reported in association with each of the communication terminals; upon receiving the request message, sending a message to the RIC including the measurement data associated with each of the communication terminals.
  • RIC Radio Access Network Intelligent Controller
  • a request message is received from a Radio Access Network Intelligent Controller (RIC) requesting that measurement data related to a transport block transmitted between the communication device and at least one communication terminal be reported in association with each of the communication terminals;
  • a communication system including a Radio Access Network Intelligent Controller (RIC) and a communication device The RIC is transmitting a request message to the communication device requesting that measurement data related to a transport block transmitted between the communication device and at least one communication terminal be reported in association with each of the communication terminals;
  • the communication device includes: Upon receiving the request message, the communication system transmits a message including the measurement data associated with each of the communication terminals to the RIC.
  • the RIC is 18.
  • the RIC is 19.
  • the measurement items related to the communication terminal include: 20.
  • the communication device is an E2 node
  • (Appendix 23) a transmission unit configured to transmit, to the communication device, a request message requesting that measurement data related to a transport block transmitted between the communication device and at least one communication terminal be reported for each of the communication terminals; a receiving unit that receives a message in which the measurement data is associated with each of the communication terminals from the communication device that has received the request message.
  • Some or all of the elements (e.g., configurations and functions) described in Appendix 2 to Appendix 6 that are dependent on Appendix 1 may also be dependent on Appendix 15 and Appendix 16 in a similar dependent relationship to Appendix 2 to Appendix 6.
  • Some or all of the elements (e.g., configurations and functions) described in Appendix 8 to Appendix 12 that are dependent on Appendix 7 may also be dependent on Appendix 13 and Appendix 14 in a similar dependent relationship to Appendix 8 to Appendix 12.
  • Some or all of the elements described in any appendix may be applied to various hardware, software, recording means for recording software, systems, and methods.

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)
PCT/JP2023/038682 2022-11-09 2023-10-26 通信装置、ｒｉｃ、方法、及びプログラム Ceased WO2024101169A1 (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2024557315A JPWO2024101169A1 (https=) 2022-11-09 2023-10-26

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2022179653 2022-11-09
JP2022-179653 2022-11-09

Publications (1)

Publication Number Publication Date
WO2024101169A1 true WO2024101169A1 (ja) 2024-05-16

Family

ID=91032732

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2023/038682 Ceased WO2024101169A1 (ja) 2022-11-09 2023-10-26 通信装置、ｒｉｃ、方法、及びプログラム

Country Status (2)

Country Link
JP (1) JPWO2024101169A1 (https=)
WO (1) WO2024101169A1 (https=)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2015518300A (ja) * 2012-03-16 2015-06-25 テレフオンアクチーボラゲット エル エム エリクソン（パブル） ネットワークによってトリガーされるユーザによる測定と測定の報告
JP2022532748A (ja) * 2019-06-07 2022-07-19 ノキア ソリューションズ アンド ネットワークス オサケユキチュア 情報の提供

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2015518300A (ja) * 2012-03-16 2015-06-25 テレフオンアクチーボラゲット エル エム エリクソン（パブル） ネットワークによってトリガーされるユーザによる測定と測定の報告
JP2022532748A (ja) * 2019-06-07 2022-07-19 ノキア ソリューションズ アンド ネットワークス オサケユキチュア 情報の提供

Also Published As

Publication number Publication date
JPWO2024101169A1 (https=) 2024-05-16

Similar Documents

Publication Publication Date Title
US12279278B2 (en) Control signaling in LTE carrier aggregation
US12556254B2 (en) Adaptive beam management in telecommunications network
CN107667556B (zh) 使用接入点与移动终端之间的下行链路和上行链路传输进行无线通信测试的方法
CN110913419A (zh) 用于辅链路的波束失败恢复方法及装置、存储介质、终端
US9504062B2 (en) Method and device for scheduling downlink data transmission
CN113615279B (zh) 无线链路管理方法及相关设备
JP2016526845A (ja) マルチキャリア環境内における無線リンク性能を向上させるためのシステム及び方法
TWI444059B (zh) 在無線通訊系統中回報記錄的方法及通訊裝置
CN103229574A (zh) 发射机协助服务质量测量
CN112567787A (zh) 用于信道状态信息报告的方法和装置
WO2021147641A1 (zh) 一种调整波束的方法及装置
CN119096478A (zh) 使用混合基于人工智能（ai）的和非基于ai的技术进行波束选择的方法
CN106537977B (zh) 超可靠链路设计
US9391912B2 (en) Selective bicasting
CN119547537A (zh) 信道状态信息报告技术
US10517122B2 (en) Methods and network nodes for managing establishment of a radio session
CN117178611A (zh) 用于多pusch和多pdsch调度的确认信令
US12063534B2 (en) Real-time network condition estimations for mobile devices
WO2024101169A1 (ja) 通信装置、ｒｉｃ、方法、及びプログラム
US9585090B1 (en) Apparatus and method for optimizing performance of a radio device
JP2025515558A (ja) 無線ネットワークにおける伝送レイテンシの測定および報告のための構成可能なグラニュラリティ
JP2025501072A (ja) 拡張サイドリンクフィードバック送信のための技法
US20260067873A1 (en) Method, forward packet, user equipment and computer software
WO2025152073A1 (en) Beam measurement and reporting techniques
WO2025217800A1 (en) Pdu set monitoring

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: 23888517

Country of ref document: EP

Kind code of ref document: A1

WWE Wipo information: entry into national phase

Ref document number: 2024557315

Country of ref document: JP

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 23888517

Country of ref document: EP

Kind code of ref document: A1