WO2020165957A1 - Dispositif de communication - Google Patents

Dispositif de communication Download PDF

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Publication number
WO2020165957A1
WO2020165957A1 PCT/JP2019/004919 JP2019004919W WO2020165957A1 WO 2020165957 A1 WO2020165957 A1 WO 2020165957A1 JP 2019004919 W JP2019004919 W JP 2019004919W WO 2020165957 A1 WO2020165957 A1 WO 2020165957A1
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WIPO (PCT)
Prior art keywords
stream
gnb
initial
rrc
signaling
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PCT/JP2019/004919
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English (en)
Japanese (ja)
Inventor
輝朗 戸枝
健次 甲斐
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株式会社Ｎｔｔドコモ
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Priority to JP2020571951A priority Critical patent/JPWO2020165957A1/ja
Priority to PCT/JP2019/004919 priority patent/WO2020165957A1/fr
Publication of WO2020165957A1 publication Critical patent/WO2020165957A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W80/00—Wireless network protocols or protocol adaptations to wireless operation
    • H04W80/06—Transport layer protocols, e.g. TCP [Transport Control Protocol] over wireless
    • 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

Definitions

  • the present invention relates to a communication device connected to another communication device that executes wireless communication with a user device.
  • LTE Long Term Evolution
  • LTE-Advanced LTE-Advanced
  • 5G New Radio 5G New Radio
  • a wireless base separated into multiple communication devices, specifically, a Central Unit (gNB-CU) and a Distributed Unit (gNB-DU) that is located remotely from the installation location of the gNB-CU.
  • gNB-CU Central Unit
  • gNB-DU Distributed Unit
  • the configuration of the station (gNB) is specified.
  • gNB-DU is provided with a lower layer such as a radio link control layer (RLC), and gNB-CU is provided with an upper layer of a radio resource control layer (RRC) or higher, so-called CU-DU Higher Layer Split (HLS) is specified (Non-Patent Document 1).
  • RLC radio link control layer
  • RRC radio resource control layer
  • HLS CU-DU Higher Layer Split
  • the user equipment (User Equipment, UE) sends an RRCSetupRequest to gNB-DU when requesting a RRC connection.
  • the gNB-DU Based on the RRCSetupRequest received from the UE, the gNB-DU transmits an initial uplink transfer message including the RRCSetupRequest, specifically, INITIAL UL RRC MESSAGE TRANSFER to the gNB-CU.
  • Non-Patent Document 2 Messages are transmitted and received between gNB-DU and gNB-CU according to the F1 Application Protocol (F1AP) procedure (Elementary Procedures (EPs)) (Non-Patent Document 2).
  • F1AP F1 Application Protocol
  • EPs Eventary Procedures
  • the F1AP EP that uses UE-associated signaling and the F1AP EP that uses NonUE-associated signaling are transmitted using separate streams (SCTP stream) on the Stream Control Transmission Protocol (SCTP) layer. ..
  • 3GPP does not specify whether the above-mentioned INITIAL UL RRC MESSAGE TRANSFER corresponds to Non-UE-associated signaling or UE-associated signaling.
  • gNB-DU sends INITIAL UL RRC MESSAGE TRANSFER by an SCTP stream not intended by gNB-CU (for example, SCTP stream for NonUE-associated signalling)
  • gNB-CU returns INITIAL UL RRC. MESSAGE TRANSFER may not be received correctly.
  • the present invention has been made in view of such a situation, and provides a communication device that can always correctly receive an initial uplink transfer message transmitted from another communication device that performs wireless communication with a user device. To aim.
  • reception unit receives a message transmitted via a stream of a predetermined layer (SCTP) from another communication device (gNB-DU110) that performs wireless communication with a user device (UE200A).
  • Section 123 and a control section (control section 125) that executes processing based on the received message, wherein the reception section is a first stream that is the stream for signaling related to the user equipment, and It is possible to receive an initial uplink transfer message (INITIAL UL RRC MESSAGE TRANSFER) including radio resource control layer information via the second stream that is the stream for signaling that is not related to any user equipment including the user equipment.
  • the control unit executes processing based on the initial uplink transfer message received by the receiving unit via the first stream or the second stream.
  • FIG. 1 is an overall schematic configuration diagram of a wireless communication system 10.
  • FIG. 2 is a diagram showing a protocol stack of gNB100 and UE200A.
  • FIG. 3 is a functional block configuration diagram of the gNB-CU120.
  • FIG. 4 is a diagram showing a communication sequence according to the initial access procedure of the UE 200A.
  • FIG. 5A is a diagram showing an operation flow in which the gNB-CU 120 receives an INITIAL UL RRC MESSAGE TRANSFER via a SCTP stream for Non UE-associated signaling.
  • FIG. 5B is a diagram showing an operation flow in which the gNB-CU 120 receives the INITIAL UL RRC MESSAGE TRANSFER via the SCTP stream for UE-associated signaling.
  • FIG. 5A is a diagram showing an operation flow in which the gNB-CU 120 receives the INITIAL UL RRC MESSAGE TRANSFER via the SCTP stream for UE-associated signaling.
  • FIG. 5B is a diagram
  • FIG. 6A is a diagram illustrating an example in which the INITIAL UL RRC MESSAGE TRANSFER is transmitted via the SCTP stream for Non UE-associated signaling.
  • FIG. 6B is a diagram illustrating an example in which the INITIAL UL RRC MESSAGE TRANSFER is transmitted via the SCTP stream for UE-associated signaling.
  • FIG. 7 is a diagram illustrating an example of the hardware configuration of gNB-CU120.
  • FIG. 1 is an overall schematic configuration diagram of a wireless communication system 10 according to the present embodiment.
  • the wireless communication system 10 is a 5G (NR) compliant wireless communication system.
  • the wireless communication system 10 includes Next Generation-Radio Access Network 20 (hereinafter, NG-RAN20) and user devices 200A and 200B (hereinafter, UE200A and UE200B).
  • the NG-RAN 20 includes a wireless base station 100 (hereinafter, gNB100).
  • the specific configuration of the wireless communication system 10 including the numbers of gNBs and UEs is not limited to the example shown in FIG.
  • NG-RAN20 actually includes multiple NG-RAN nodes, specifically gNB (or ng-eNB), and is connected to a 5G-compliant core network (5GC, not shown).
  • gNB or ng-eNB
  • 5GC 5G-compliant core network
  • the gNB100 is a 5G-compliant wireless base station, and executes 5G-compliant wireless communication with UE200A (and UE200B, hereinafter the same).
  • the gNB 100 is configured by a Central Unit (gNB-CU) and a Distributed Unit (gNB-DU), as described later.
  • gNB-CU Central Unit
  • gNB-DU Distributed Unit
  • Massive MIMO that generates a beam with higher directivity by controlling radio signals transmitted from multiple antenna elements, carrier aggregation (CA) using multiple component carriers (CC), and multiple It is possible to support dual connectivity (DC) that simultaneously transmits component carriers between the NG-RAN node and the UE.
  • CA carrier aggregation
  • CC component carriers
  • DC dual connectivity
  • Fig. 2 shows the protocol stack of gNB100 and UE200A.
  • the gNB 100 includes a gNB-Distributed Unit 110 (hereinafter, gNB-DU110) and a gNB-Central Unit 120 (hereinafter, gNB-CU120).
  • gNB-DU110 gNB-Distributed Unit 110
  • gNB-CU120 gNB-Central Unit 120
  • the gNB-DU110 provides (host) a lower layer, specifically, a physical layer (L1) and a radio unit (RF), a medium access control layer (MAC) and a radio link control layer (RLC).
  • L1 physical layer
  • RF radio unit
  • MAC medium access control layer
  • RLC radio link control layer
  • the gNB-DU110 executes communication with the UE200A via the lower layer.
  • the gNB-DU110 constitutes another communication device that executes wireless communication with the UE200A.
  • -GNB-DU110 supports one or more cells. One cell is supported by only one gNB-DU.
  • the gNB-DU110 terminates the F1 interface with the gNB-CU120.
  • the gNB-CU120 is a logical node that provides a packet data convergence protocol layer (PDCP) and a radio resource control layer (RRC).
  • PDCP packet data convergence protocol layer
  • RRC radio resource control layer
  • SDAP service data adaptation protocol layer
  • the gNB-CU120 controls the operation of one or more gNB-DU110.
  • the gNB-CU120 terminates the F1 interface with the gNB-DU110.
  • the gNB-CU120 is connected to the gNB-DU110 and executes communication with the UE200A via RRC, which is higher than a lower layer such as RLC.
  • the gNB-CU120 constitutes a communication device.
  • NG-RAN20 including gNB100 having such protocol stack controls the mobility of RRC connection established with UE200A.
  • FIG. 3 is a functional block configuration diagram of gNB-CU120. As shown in FIG. 3, the gNB-CU 120 includes a transmitter 121, a receiver 123, and a controller 125.
  • the transmitting unit 121 transmits various messages according to the F1 interface, specifically, F1AP, to the gNB-DU110.
  • the transmission unit 121 transmits a downlink (DL) message to the gNB-DU110 under the control of the control unit 125. Specifically, the transmission unit 121 transmits a DL RRC MESSAGE TRANSFER, which is a time of messe in DL RRC, to the gNB-DU 110.
  • the receiving unit 123 receives various messages according to F1AP from the gNB-DU110. Particularly, in the present embodiment, the reception unit 123 receives a message including RRC layer information transmitted from the gNB-DU 110 via a stream of a predetermined layer.
  • the predetermined layer is the Transport Network Layer in the protocol stack of the F1-C (Control) signaling bearer (see 3GPP TS38.472 Chapter 4), more specifically, the Stream Control Transmission included in the Transport Network Layer. Stands for Protocol (SCTP).
  • F1-C Control
  • SCTP Stands for Protocol
  • the receiving unit 123 receives a message including RRC layer information via an SCTP stream conforming to SCTP.
  • the stream means a logical communication path (path) in the SCTP layer.
  • Multiple SCTP streams are set between gNB-DU110 and gNB-CU120. Specifically, a signaling stream (first stream) related to UE200A and a signaling stream (second stream) not related to UE200A are set.
  • the signaling stream not related to UE200A means a signaling stream not related to any UE (UE200B) including UE200A. Specifically, it means a stream for signaling (Non UE-associated signaling) not related to the UE 200A and all other UEs RRC-connected to the gNB-DU 110.
  • the SCTP stream for UE-associated signaling and the SCTP stream for Non UE-associated signaling are set between gNB-DU110 and gNB-CU120.
  • the receiving unit 123 receives the initial uplink transfer message transmitted from the gNB-DU110, specifically, the INITIAL UL RRC MESSAGE TRANSFER, via the SCTP stream.
  • the receiving unit 123 can receive the INITIAL RRC MESSAGE TRANSFER via the SCTP stream (first stream) for UE-associated signaling and the SCTP stream (second stream) for non-UE-associated signaling.
  • FIG. 6A and 6B show a configuration example of the SCTP stream. Specifically, FIG. 6A shows an example in which the INITIAL UL RRC MESSAGE TRANSFER is transmitted via the SCTP stream for Non-UE-associated signaling. FIG. 6B shows an example in which INITIAL UL RRC MESSAGE TRANSFER is transmitted via the SCTP stream for UE-associated signaling.
  • gNB-CU120 any SCTP stream, specifically, any of the SCTP stream for Non-UE-associated signaling, and the SCTP stream for UE-associated signaling RRC INITIAL UL RRC Can receive MESSAGE TRANSFER.
  • the receiving unit 123 can receive the INITIAL UL RRC MESSAGE TRANSFER through the SCTP stream for UE-associated signaling related to the UE 200A and the SCTP stream for non UE-associated signaling not related to the UE 200A.
  • the SCTP stream for UE-associated signaling may be further set to a UE-associated signaling SCTP stream (third stream) that is not associated with UE200A but is associated with another UE, UE200B in this embodiment. .. Specifically, each of the double lines on the side of the SCTP stream for UE-associated signaling between gNB-DU110 to gNB-CU120 in FIGS. 6A and 6B is a SCTP stream for another UE-associated signaling. (For example, for UE200A and for UE200B).
  • the control unit 125 controls the operation of the gNB-CU120.
  • the processing is executed based on the message including the RRC layer information received by the receiving unit 123.
  • control unit 125 controls the INITIAL UL received by the receiving unit 123 via the SCTP stream for UE-associated signaling (first stream) or the SCTP stream for Non UE-associated signaling (second stream). Execute the process based on RRC MESSAGE TRANSFER.
  • control unit 125 starts the initial access procedure of the UE 200A (see 3GPP TS 38.401 section 8.1).
  • FIG. 4 shows a communication sequence according to the initial access procedure of the UE 200A.
  • the communication sequence shown in FIG. 4 is the same as the content described in 3GPP TS38.401 Chapter 8.1.
  • UE200A sends an RRCSetupRequest to gNB-DU110 to start an RRC connection to NG-RAN20 (S1).
  • gNB-DU110 Based on the received RRCSetupRequest, gNB-DU110 sends INITIAL UL RRC MESSAGE TRANSFER, which is the RRC layer initial uplink transfer message, to gNB-CU120 (S2).
  • the gNB-DU110 includes the content of the RRCSetupRequest, that is, the RRC layer information, in the INITIAL UL RRC MESSAGE TRANSFER.
  • NB gNB-CU120 allocates F1AP ID to UE200A based on RRCSetupRequest included in the received INITIAL ULRC RESS MESSAGE TRANSFER, and generates RRCSetup which is RRC layer message.
  • the gNB-CU120 transmits the encapsulated DL-RRC-MESSAGE-TRANSFER including the generated RRCSetup to the gNB-DU110 (S3).
  • the gNB-DU110 transfers the RRC Setup included in the received DL RRC MESSAGE TRANSFER to the UE 200A (S4). After that, the connection is executed according to RRC (S5, S6).
  • FIG. 5A corresponds to FIG. 6A and shows an operation flow in which the gNB-CU120 receives the INITIAL UL RRC MESSAGE TRANSFER via the SCTP stream for Non UE-associated signaling.
  • FIG. 5B corresponds to FIG. 6B and shows an operation flow in which gNB-CU120 receives INITIAL UL RRC MESSAGE TRANSFER via the SCTP stream for UE-associated signaling.
  • GNB-CU120 processes INITIAL UL RRC MESSAGE TRANSFER and generates RRC Setup based on RRC Setup Request included in INITIAL UL RRC MESSAGE TRANSFER (S20).
  • the gNB-CU120 sends the DL RRC MESSAGE TRANSFER including the generated RRCSetup to the gNB-DU110 (S30).
  • gNB-CU120 receives INITIAL UL RRC MESSAGE TRANSFER via the SCTP stream for UE-associated signaling ( S11).
  • GNB-CU120 processes INITIAL UL RRC MESSAGE TRANSFER and generates RRC Setup based on RRC Setup Request included in INITIAL UL RRC MESSAGE TRANSFER (S21).
  • the gNB-CU120 sends the DL RRC MESSAGE TRANSFER including the generated RRCSetup to the gNB-DU110 (S31).
  • RRCSetupRequest RRCSetup can be generated based on and DL DL RRC MESSAGE TRANSFER can be sent.
  • the gNB-CU120 receives the INITIAL UL RRC MESSAGE TRANSFER via the SCTP stream (first stream) for UE-associated signaling and the SCTP stream (second stream) for non UE-associated signaling. It is possible.
  • the gNB-CU120 can receive INITIAL UL RRC MESSAGE TRANSFER in any SCTP stream, specifically, in any of the SCTP stream for non-UE-associated signaling and the SCTP stream for UE-associated signaling.
  • the INITIAL UL RRC MESSAGE TRANSFER transmitted from the gNB-DU110 that executes wireless communication with the UE 200A can always be correctly received.
  • the INITIAL UL RRC MESSAGETRANSFER corresponds to Non-UE-associated signaling or UE-associated signaling
  • INITIALULRRC MESSAGE TRANSFER is set to Non-UE-associated signaling. It is assumed that either the SCTP stream for UE or the SCTP stream for UE-associated signaling may be transmitted.
  • the UE 200A can reliably execute the RRC layer connection via the gNB-DU110 and the gNB-CU120.
  • the gNB-CU 120 receives the INITIAL UL RRC MESSAGE TRANSFER via the SCTP stream conforming to SCTP. Therefore, the gNB-CU 120 can receive the INITIAL UL RRC MESSAGE TRANSFER including the RRCSetupRequest via the stream according to SCTP included in the Transport Network Layer in the protocol stack of the F1-C signaling bearer.
  • the gNB-CU120 receives the INITIAL UL RRC MESSAGE TRANSFER via the SCTP stream conforming to SCTP, but the stream does not necessarily have to comply with SCTP. That is, if it is a protocol included in the Transport Network Layer in the protocol stack of the F1-C signaling bearer and located at a lower level of F1AP, it is not necessarily called SCTP.
  • the gNB-CU120 receives the INITIAL UL RRC MESSAGE TRANSFER including the RRCSetupRequest, but if the message includes the RRC layer setting request, it may not necessarily be the INITIAL UL RRC MESSAGE TRANSFER. ..
  • each functional block may be implemented by using one device that is physically or logically coupled, or directly or indirectly (for example, two or more devices that are physically or logically separated). , Wired, wireless, etc.) and may be implemented using these multiple devices.
  • the functional block may be realized by combining the one device or the plurality of devices with software.
  • Functions include judgment, decision, judgment, calculation, calculation, processing, derivation, investigation, search, confirmation, reception, transmission, output, access, resolution, selection, selection, establishment, comparison, assumption, expectation, observation, Broadcasting, notifying, communicating, forwarding, configuration, reconfiguring, allocating, mapping, assigning, etc., but not limited to these.
  • a functional block (component) that causes transmission to function is called a transmitter (transmitting unit) or a transmitter (transmitter).
  • the implementation method is not particularly limited as described above.
  • FIG. 7 is a diagram illustrating an example of the hardware configuration of gNB-CU120.
  • the gNB-CU 120 may be configured as a computer device including a processor 1001, a memory 1002, a storage 1003, a communication device 1004, an input device 1005, an output device 1006, a bus 1007, and the like.
  • the word “device” can be read as a circuit, device, unit, or the like.
  • the hardware configuration of the device may be configured to include one or a plurality of each device illustrated in the figure, or may be configured not to include some devices.
  • Each functional block of gNB-CU120 (see FIG. 3) is realized by any hardware element of the computer device or a combination of the hardware elements.
  • each function in the gNB-CU120 the processor 1001, by loading a predetermined software (program) on the hardware such as the memory 1002, the processor 1001 performs an operation, and controls the communication by the communication device 1004, It is realized by controlling at least one of reading and writing of data in the memory 1002 and the storage 1003.
  • a predetermined software program
  • the processor 1001 for example, runs an operating system to control the entire computer.
  • the processor 1001 may be configured by a central processing unit (CPU) including an interface with peripheral devices, a control device, a calculation device, a register, and the like.
  • CPU central processing unit
  • the processor 1001 reads a program (program code), software module, data, etc. from at least one of the storage 1003 and the communication device 1004 into the memory 1002, and executes various processes according to these.
  • a program program code
  • the various processes described above may be executed by one processor 1001 or may be executed simultaneously or sequentially by two or more processors 1001.
  • the processor 1001 may be implemented by one or more chips.
  • the program may be transmitted from the network via an electric communication line.
  • the memory 1002 is a computer-readable recording medium, and is configured by at least one of, for example, Read Only Memory (ROM), Erasable Programmable ROM (EPROM), Electrically Erasable Programmable ROM (EEPROM), and Random Access Memory (RAM). May be done.
  • the memory 1002 may be called a register, a cache, a main memory (main storage device), or the like.
  • the memory 1002 may store a program (program code) capable of executing the method according to an embodiment of the present disclosure, a software module, and the like.
  • the storage 1003 is a computer-readable recording medium, for example, an optical disc such as a Compact Disc ROM (CD-ROM), a hard disc drive, a flexible disc, a magneto-optical disc (for example, a compact disc, a digital versatile disc, a Blu-ray disc). At least one of a (registered trademark) disk, a smart card, a flash memory (for example, a card, a stick, a key drive), a floppy (registered trademark) disk, a magnetic strip, or the like may be used.
  • the storage 1003 may be called an auxiliary storage device.
  • the above-described recording medium may be, for example, a database including at least one of the memory 1002 and the storage 1003, a server, or another appropriate medium.
  • the communication device 1004 is hardware (transmission/reception device) for performing communication between computers via at least one of a wired network and a wireless network, and is also called, for example, a network device, a network controller, a network card, a communication module, or the like.
  • the communication device 1004 includes a high frequency switch, a duplexer, a filter, a frequency synthesizer, and the like in order to realize at least one of, for example, frequency division duplex (FDD) and time division duplex (TDD). May be composed of
  • FDD frequency division duplex
  • TDD time division duplex
  • the input device 1005 is an input device (eg, keyboard, mouse, microphone, switch, button, sensor, etc.) that receives an input from the outside.
  • the output device 1006 is an output device (for example, a display, a speaker, an LED lamp, etc.) that performs output to the outside.
  • the input device 1005 and the output device 1006 may be integrated (for example, a touch panel).
  • each device such as the processor 1001 and the memory 1002 is connected by a bus 1007 for communicating information.
  • the bus 1007 may be configured by using a single bus, or may be configured by using a different bus for each device.
  • the device is configured to include hardware such as a microprocessor, digital signal processor (DSP), Application Specific Integrated Circuit (ASIC), Programmable Logic Device (PLD), Field Programmable Gate Array (FPGA).
  • DSP digital signal processor
  • ASIC Application Specific Integrated Circuit
  • PLD Programmable Logic Device
  • FPGA Field Programmable Gate Array
  • processor 1001 may be implemented with at least one of these hardware.
  • the notification of information is not limited to the mode/embodiment described in the present disclosure, and may be performed using another method.
  • information is notified by physical layer signaling (for example, Downlink Control Information (DCI), Uplink Control Information (UCI), upper layer signaling (for example, RRC signaling, Medium Access Control (MAC) signaling, broadcast information (Master Information Block). (MIB), System Information Block (SIB)), other signals, or a combination thereof
  • RRC signaling may be referred to as RRC message, for example, RRC Connection Setup (RRC Connection Setup). ) Message, RRC connection reconfiguration message, or the like.
  • LTE Long Term Evolution
  • LTE-A LTE-Advanced
  • SUPER 3G IMT-Advanced
  • 4th generation mobile communication system 4th generation mobile communication system
  • 5G 5 th generation mobile communication system
  • Future Radio Access FAA
  • New Radio NR
  • W-CDMA registered trademark
  • GSM registered trademark
  • UMB Ultra Mobile Broadband
  • IEEE 802.11 Wi-Fi (registered trademark)
  • IEEE 802.16 WiMAX (registered trademark)
  • IEEE 802.20 Ultra-WideBand (UWB), Bluetooth (registered trademark), and other suitable systems
  • at least a next-generation system based on these systems It may be applied to one. Further, a plurality of systems may be combined and applied (for example, a combination of at least one of LTE and LTE-A and 5G).
  • the specific operation that is performed by the base station in the present disclosure may be performed by its upper node in some cases.
  • various operations performed for communication with a terminal include a base station and other network nodes other than the base station (eg, MME or S-GW and the like are conceivable, but not limited to these).
  • MME or S-GW and the like are conceivable, but not limited to these.
  • a combination of a plurality of other network nodes for example, MME and S-GW may be used.
  • Information and signals can be output from the upper layer (or lower layer) to the lower layer (or upper layer). Input/output may be performed via a plurality of network nodes.
  • the input/output information may be stored in a specific location (for example, memory) or may be managed using a management table.
  • the input/output information may be overwritten, updated, or added.
  • the output information may be deleted.
  • the input information may be transmitted to another device.
  • the determination may be performed by a value represented by 1 bit (whether 0 or 1), may be performed by a Boolean value (Boolean: true or false), and may be performed by comparing numerical values (for example, a predetermined value). Value comparison).
  • the notification of the predetermined information (for example, the notification of “being X”) is not limited to the explicit notification, and is performed implicitly (for example, the notification of the predetermined information is not performed). Good.
  • software, instructions, information, etc. may be transmitted and received via a transmission medium.
  • the software uses a wired technology (coaxial cable, fiber optic cable, twisted pair, Digital Subscriber Line (DSL), etc.) and/or wireless technology (infrared, microwave, etc.) websites, When sent from a server, or other remote source, at least one of these wired and wireless technologies is included within the definition of transmission medium.
  • wired technology coaxial cable, fiber optic cable, twisted pair, Digital Subscriber Line (DSL), etc.
  • wireless technology infrared, microwave, etc.
  • data, instructions, commands, information, signals, bits, symbols, chips, etc. that may be referred to throughout the above description include voltage, current, electromagnetic waves, magnetic fields or magnetic particles, optical fields or photons, or any of these. May be represented by a combination of
  • At least one of the channel and the symbol may be a signal (signaling).
  • the signal may also be a message.
  • a component carrier (Component Carrier: CC) may be called a carrier frequency, a cell, a frequency carrier, or the like.
  • system and “network” used in this disclosure are used interchangeably.
  • the information, parameters, etc. described in the present disclosure may be represented by using an absolute value, may be represented by using a relative value from a predetermined value, or by using other corresponding information. May be represented.
  • the radio resources may be those indicated by the index.
  • Base Station BS
  • Wireless Base Station Wireless Base Station
  • NodeB NodeB
  • eNodeB eNodeB
  • gNodeB gNodeB
  • a base station may be referred to by terms such as macro cell, small cell, femto cell, and pico cell.
  • a base station can accommodate one or more (eg, three) cells (also called sectors). When a base station accommodates multiple cells, the entire coverage area of the base station can be divided into multiple smaller areas, each smaller area being a base station subsystem (e.g., a small indoor base station (Remote Radio Radio). Head: RRH) can also provide communication services.
  • a base station subsystem e.g., a small indoor base station (Remote Radio Radio). Head: RRH) can also provide communication services.
  • cell refers to a part or the entire coverage area of at least one of the base station and the base station subsystem that provide communication services in this coverage.
  • MS mobile station
  • UE user equipment
  • Mobile stations are defined by those skilled in the art as subscriber stations, mobile units, subscriber units, wireless units, remote units, mobile devices, wireless devices, wireless communication devices, remote devices, mobile subscriber stations, access terminals, mobile terminals, wireless. It may also be referred to as a terminal, remote terminal, handset, user agent, mobile client, client, or some other suitable term.
  • At least one of the base station and the mobile station may be called a transmission device, a reception device, a communication device, or the like.
  • the base station and the mobile station may be a device mounted on the mobile body, the mobile body itself, or the like.
  • the moving body may be a vehicle (eg, car, airplane, etc.), an unmanned moving body (eg, drone, self-driving car, etc.), or a robot (manned type or unmanned type).
  • At least one of the base station and the mobile station also includes a device that does not necessarily move during communication operation.
  • at least one of the base station and the mobile station may be an Internet of Things (IoT) device such as a sensor.
  • IoT Internet of Things
  • the base station in the present disclosure may be read as a mobile station (user terminal, hereinafter the same).
  • the communication between base stations and mobile stations has been replaced with communication between multiple mobile stations (eg, Device-to-Device (D2D), Vehicle-to-Everything (V2X), etc.)
  • the mobile station may have the function of the base station.
  • the wording such as “up” and “down” may be replaced with the wording corresponding to the terminal-to-terminal communication (for example, “side”).
  • the uplink channel and the downlink channel may be replaced with the side channel.
  • the mobile station in the present disclosure may be read as a base station.
  • the base station may have the function of the mobile station.
  • connection means any direct or indirect connection or coupling between two or more elements, and It can include the presence of one or more intermediate elements between two elements that are “connected” or “coupled.”
  • the connections or connections between the elements may be physical, logical, or a combination thereof.
  • connection may be read as “access”.
  • two elements are in the radio frequency domain, with at least one of one or more wires, cables and printed electrical connections, and as some non-limiting and non-exhaustive examples. , Can be considered to be “connected” or “coupled” to each other, such as with electromagnetic energy having wavelengths in the microwave and light (both visible and invisible) regions.
  • the reference signal can also be abbreviated as Reference Signal (RS), or may be referred to as Pilot depending on the applied standard.
  • RS Reference Signal
  • the phrase “based on” does not mean “based only on,” unless expressly specified otherwise. In other words, the phrase “based on” means both "based only on” and “based at least on.”
  • references to elements using designations such as “first”, “second”, etc. as used in this disclosure does not generally limit the amount or order of those elements. These designations may be used in this disclosure as a convenient way to distinguish between two or more elements. Thus, references to the first and second elements do not mean that only two elements may be employed there, or that the first element must precede the second element in any way.
  • the term “A and B are different” may mean “A and B are different from each other”.
  • the term may mean that “A and B are different from C”.
  • the terms “remove”, “coupled” and the like may be construed similarly as “different”.
  • Wireless communication system 20 NG-RAN 100 gNB 110 gNB-DU 120 gNB-CU 121 Transmission section 123 Reception section 125 Control section 200A, 200B UE 1001 Processor 1002 Memory 1003 Storage 1004 Communication device 1005 Input device 1006 Output device 1007 Bus

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

Abstract

Selon la présente invention, une gNB-CU (120) peut recevoir un INITIAL UL RRC MESSAGE TRANSFER comprenant des informations de couche de commande de ressources radio, par l'intermédiaire d'un premier flux qui est un flux de signalisation associé à un dispositif utilisateur et d'un second flux qui est un flux de signalisation non lié au dispositif utilisateur. La gNB-CU (120) exécute un traitement sur la base du INITIAL UL RRC MESSAGE TRANSFER reçu par l'intermédiaire du premier flux ou du second flux.
PCT/JP2019/004919 2019-02-12 2019-02-12 Dispositif de communication WO2020165957A1 (fr)

Priority Applications (2)

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JP2020571951A JPWO2020165957A1 (ja) 2019-02-12 2019-02-12 通信装置
PCT/JP2019/004919 WO2020165957A1 (fr) 2019-02-12 2019-02-12 Dispositif de communication

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2019/004919 WO2020165957A1 (fr) 2019-02-12 2019-02-12 Dispositif de communication

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WO2020165957A1 true WO2020165957A1 (fr) 2020-08-20

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JP (1) JPWO2020165957A1 (fr)
WO (1) WO2020165957A1 (fr)

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
"3rd Generation Partnership Project; Technical Specification Group Radio Access Network; NG RAN; F1 signalling transport (Release 15)", 3GPP TS 38.472, no. V0.5.0, 10 December 2017 (2017-12-10), pages 7, XP051391837 *
ERICSSON: "Initial UE Access", 3GPP TSG RAN WG3 #97BIS, R3-173964, 13 October 2017 (2017-10-13), XP051344376, Retrieved from the Internet <URL:http://www.3gpp.org/ftp/tsg_ran/WG3_Iu/TSGR3_97bis/Docs/R3-173964,zip> [retrieved on 20190410] *

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