WO2020230623A1 - ユーザ装置及び基地局装置 - Google Patents
ユーザ装置及び基地局装置 Download PDFInfo
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- WO2020230623A1 WO2020230623A1 PCT/JP2020/018097 JP2020018097W WO2020230623A1 WO 2020230623 A1 WO2020230623 A1 WO 2020230623A1 JP 2020018097 W JP2020018097 W JP 2020018097W WO 2020230623 A1 WO2020230623 A1 WO 2020230623A1
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- Prior art keywords
- base station
- report
- user device
- unit
- user
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W12/00—Security arrangements; Authentication; Protecting privacy or anonymity
- H04W12/08—Access security
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L63/00—Network architectures or network communication protocols for network security
- H04L63/20—Network architectures or network communication protocols for network security for managing network security; network security policies in general
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W8/00—Network data management
- H04W8/22—Processing or transfer of terminal data, e.g. status or physical capabilities
- H04W8/24—Transfer of terminal data
Definitions
- the present invention relates to a user device and a base station device in a wireless communication system.
- Non-Patent Document 1 NR (New Radio) (also called “5G”), which is the successor system to LTE (Long Term Evolution), the requirements are a large capacity system, high-speed data transmission speed, low delay, and simultaneous operation of many terminals. Techniques that satisfy connection, low cost, power saving, etc. are being studied (for example, Non-Patent Document 1).
- the network makes an inquiry to the UE (User Equipment) and acquires information related to the wireless access capability of the UE.
- the wireless access capability of the UE is, for example, the maximum data rate supported, the total layer 2 buffer size, the band combinations supported, the parameters related to the PDCP (Packet Data Convergence Protocol) layer, the parameters related to the RLC (Radio Link Control) layer, and the MAC.
- PDCP Packet Data Convergence Protocol
- RLC Radio Link Control
- MAC Medium Access Control
- the present invention has been made in view of the above points, and an object of the present invention is to improve security when transmitting a report relating to the capability of a user device in a wireless communication system to a network.
- a control unit that includes the supporting UE capability in the report, and the base station apparatus.
- AS Access Stratum
- LTE Long Term Evolution
- LTE-Advanced LTE-Advanced and later methods (eg, NR) unless otherwise specified.
- SS Synchronization signal
- PSS Primary SS
- SSS Secondary SS
- PBCH Physical broadcast channel
- PRACH Physical
- NR-SS NR-SS
- NR-PBCH Physical broadcast channel
- PRACH Physical
- the duplex system may be a TDD (Time Division Duplex) system, an FDD (Frequency Division Duplex) system, or other system (for example, Flexible Duplex, etc.). Method may be used.
- TDD Time Division Duplex
- FDD Frequency Division Duplex
- Method may be used.
- “configuring" the radio parameter or the like may mean that a predetermined value is set in advance (Pre-configure), or the base station apparatus 10 Alternatively, the radio parameter notified from the user device 20 may be set.
- FIG. 1 is a diagram showing a configuration example of a network architecture according to an embodiment of the present invention.
- the wireless network architecture according to the embodiment of the present invention includes 4G-CU, 4G-RU (RemoteUnit, remote radio station), EPC (EvolvedPacketCore), etc. on the LTE-Advanced side.
- the wireless network architecture in the embodiment of the present invention includes 5G-CU, 5G-DU and the like on the 5G side.
- 4G-CU includes RRC (RadioResourceControl), PDCP (PacketDataConvergenceProtocol), RLC (RadioLinkControl), MAC (MediumAccessControl), L1 (Layer 1, PHY layer or It includes layers up to the physical layer) and is connected to 4G-RU via CPRI (Common Public Radio Interface).
- RRC RadioResourceControl
- PDCP PacketDataConvergenceProtocol
- RLC RadioLinkControl
- MAC MediumAccessControl
- L1 Layer 1, PHY layer or It includes layers up to the physical layer
- CPRI Common Public Radio Interface
- the 5G-CU includes the RRC layer and is connected to the 5G-DU via the FH (Fronthaul) interface, and the 5GC (5G Core Network) and the NG interface (NG). It is connected via interface). Further, the 5G-CU is connected to the 4G-CU by an X2 interface.
- the PDCP layer in 4G-CU serves as a coupling or separation point when performing DC (Dual Connectivity) of 4G-5G, that is, EN-DC (E-UTRA-NR Dual Connectivity).
- a network node including 5G-CU and 5G-DU is called gNB.
- 5G-CU may be referred to as gNB-CU
- 5G-DU may be referred to as gNB-DU.
- CA Carrier Aggregation
- DC is performed between 4G-RU and 5G-DU.
- a UE User Equipment
- a UE User Equipment
- FIG. 1 shows the wireless network architecture at the time of LTE-NR DC, that is, EN-DC (E-UTRA-NR Dual Connectivity).
- EN-DC E-UTRA-NR Dual Connectivity
- a similar wireless network architecture may be used when separating 4G-CU into CU-DU or when operating NR standalone.
- the functions related to the RRC layer and the PDCP layer may be transferred to the 4G-CU, and the RLC layer and below may be included in the 4G-DU.
- the CU-DU separation may reduce the CPRI data rate.
- a plurality of 5G-DUs may be connected to the 5G-CU.
- NR-DC NR-NR Dual Connectivity
- the 5G-CU may be directly connected to the EPC without going through the 4G-CU, or the 4G-CU may be directly connected to the 5GC without going through the 5G-CU.
- FIG. 2 is a diagram for explaining a wireless communication system according to an embodiment of the present invention.
- the wireless communication system according to the embodiment of the present invention includes a base station device 10 and a user device 20 as shown in FIG. Although FIG. 2 shows one base station device 10 and one user device 20, this is an example, and there may be a plurality of each.
- the base station device 10 is a communication device that provides one or more cells and performs wireless communication with the user device 20.
- the physical resources of the radio signal are defined in the time domain and the frequency domain, the time domain may be defined by the number of OFDM symbols, and the frequency domain may be defined by the number of subcarriers or the number of resource blocks.
- the base station apparatus 10 transmits a synchronization signal and system information to the user apparatus 20. Synchronous signals are, for example, NR-PSS and NR-SSS.
- the system information is transmitted by, for example, NR-PBCH, and is also referred to as broadcast information. As shown in FIG.
- the base station apparatus 10 transmits the control signal or data to the user apparatus 20 by DL (Downlink), and receives the control signal or data from the user apparatus 20 by UL (Uplink). Both the base station device 10 and the user device 20 can perform beamforming to transmit and receive signals. Further, both the base station device 10 and the user device 20 can apply MIMO (Multiple Input Multiple Output) communication to DL or UL. Further, both the base station device 10 and the user device 20 may communicate via SCell (Secondary Cell) and PCell (Primary Cell) by CA (Carrier Aggregation).
- SCell Secondary Cell
- PCell Primary Cell
- the user device 20 is a communication device having a wireless communication function such as a smartphone, a mobile phone, a tablet, a wearable terminal, and a communication module for M2M (Machine-to-Machine). As shown in FIG. 2, the user apparatus 20 is provided by the wireless communication system by receiving the control signal or data from the base station apparatus 10 by DL and transmitting the control signal or data to the base station apparatus 10 by UL. Use various communication services.
- the UE capability query that is, the "UE Capability Energy” is transmitted from the base station device 10 to the user device 20 before the security procedure of the access layer, that is, AS (Access Stratum) is completed.
- AS Access Stratum
- the report of UE capability that is, "UE Capacity Information” may be falsified by a man-in-the-middle attack. Therefore, the user device 20 may reduce the communication performance by executing the wireless communication based on the falsified "UECapacity Information" with the base station device 10.
- FIG. 3 is a sequence diagram for explaining an operation example according to the embodiment of the present invention.
- the base station device 10 and the user device 20 enable "AS security activation", that is, AS security.
- the base station apparatus 10 transmits an inquiry of "UE Capacity Energy", that is, the UE capability to the user apparatus 20.
- the user apparatus 20 transmits a "UE Capacity Information", that is, a report of UE capability to the base station apparatus 10.
- the "UE Capacity Information” includes the UE capability supported by the user device 20.
- the base station apparatus 10 identifies the supported UE capabilities based on the received "UECapacity Information”.
- the UE capability is acquired in the network by the "UECapacityEnquiry" in step S2 and the “UECapacity Information” in step S3, so that the possibility that the "UECapacity Information" is tampered with is reduced.
- FIG. 4 is a flowchart (1) for explaining an operation example according to the embodiment of the present invention. An operation example in the user device 20 will be described with reference to the flowchart shown in FIG.
- step S10 the user device 20 receives the "UECapitalityEnquiry" from the base station device 10. Subsequently, in step S11, the user device 20 determines whether or not AS security, that is, AS security is enabled. If AS security is enabled (YES in S11), the process proceeds to step S12, and if AS security is not enabled (NO in S11), the process proceeds to step S13.
- step S12 the user device 20 transmits "UECapacity Information" to the base station device 10.
- step S13 the user apparatus 20 does not transmit the "UECapacity Information" to the base station apparatus 10.
- step S11 when AS security is not enabled, the user device 20 may ignore the "UECapbilityEnquiry". Further, for example, in step S13, the user apparatus 20 may send a notification to the base station apparatus 10 indicating that the UE Security Enquiry has failed because AS security has not been enabled.
- FIG. 5 is a flowchart (2) for explaining an operation example according to the embodiment of the present invention. An operation example in the base station apparatus 10 will be described with reference to the flowchart shown in FIG.
- step S20 the base station apparatus 10 determines whether or not AS security, that is, AS security is enabled. If AS security is enabled (YES in S20), the process proceeds to step S21, and if AS security is not enabled (NO in S20), the process proceeds to step S22.
- step S21 the base station apparatus 10 transmits "UECapbilityEnquiry" to the user apparatus 20, and proceeds to step S23.
- step S22 the base station apparatus 10 enables AS security and proceeds to step S21.
- step S23 the base station apparatus 10 receives the "UECapacity Information" from the user apparatus 20.
- the user device 20 can transmit a report of UE capability to the base station device 10 in a state where AS security is enabled.
- the base station apparatus 10 and the user apparatus 20 include a function of carrying out the above-described embodiment.
- the base station apparatus 10 and the user apparatus 20 may each have only a part of the functions in the embodiment.
- FIG. 6 is a diagram showing an example of the functional configuration of the base station device 10 according to the embodiment of the present invention.
- the base station apparatus 10 includes a transmission unit 110, a reception unit 120, a setting unit 130, and a control unit 140.
- the functional configuration shown in FIG. 6 is only an example. Any function classification and name of the functional unit may be used as long as the operation according to the embodiment of the present invention can be executed.
- the transmission unit 110 includes a function of generating a signal to be transmitted to the user device 20 side and transmitting the signal wirelessly. Further, the transmission unit 110 transmits a message between network nodes to another network node.
- the receiving unit 120 includes a function of receiving various signals transmitted from the user apparatus 20 and acquiring information of, for example, a higher layer from the received signals. Further, the transmission unit 110 has a function of transmitting NR-PSS, NR-SSS, NR-PBCH, DL / UL control signals, and the like to the user device 20. In addition, the receiving unit 120 receives a message between network nodes from another network node.
- the setting unit 130 stores preset setting information and various setting information to be transmitted to the user device 20.
- the content of the setting information is, for example, information related to transmission / reception setting according to the UE capability of the user device 20.
- control unit 140 controls the processing of the UE capability report received from the user device 20.
- the function unit related to signal transmission in the control unit 140 may be included in the transmission unit 110, and the function unit related to signal reception in the control unit 140 may be included in the reception unit 120.
- FIG. 7 is a diagram showing an example of the functional configuration of the user device 20 according to the embodiment of the present invention.
- the user device 20 includes a transmission unit 210, a reception unit 220, a setting unit 230, and a control unit 240.
- the functional configuration shown in FIG. 7 is only an example. Any function classification and name of the functional unit may be used as long as the operation according to the embodiment of the present invention can be executed.
- the transmission unit 210 creates a transmission signal from the transmission data and wirelessly transmits the transmission signal.
- the receiving unit 220 wirelessly receives various signals and acquires a signal of a higher layer from the received signal of the physical layer. Further, the receiving unit 220 has a function of receiving NR-PSS, NR-SSS, NR-PBCH, DL / UL / SL control signals and the like transmitted from the base station apparatus 10. Further, for example, the transmission unit 210 connects the other user device 20 to the PSCCH (Physical Sidelink Control Channel), PSCH (Physical Sidelink Shared Channel), PSDCH (Physical Sidelink Discovery Channel), PSBCH (Physical Sidelink Broadcast Channel) as D2D communication. ) Etc., and the receiving unit 120 receives the PSCCH, PSCH, PSDCH, PSBCH, etc. from the other user device 20.
- PSCCH Physical Sidelink Control Channel
- PSCH Physical Sidelink Shared Channel
- PSDCH Physical Sidelink Discovery Channel
- PSBCH
- the setting unit 230 stores various setting information received from the base station device 10 by the receiving unit 220.
- the setting unit 230 also stores preset setting information.
- the content of the setting information is, for example, information related to transmission / reception setting according to the UE capability.
- the control unit 240 controls the UE capability report of the user device 20 as described in the embodiment.
- the function unit related to signal transmission in the control unit 240 may be included in the transmission unit 210, and the function unit related to signal reception in the control unit 240 may be included in the reception unit 220.
- each functional block may be realized by using one device that is physically or logically connected, or directly or indirectly (for example, by two or more devices that are physically or logically separated). , Wired, wireless, etc.) and may be realized using these plurality of devices.
- the functional block may be realized by combining the software with the one device or the plurality of devices.
- Functions include judgment, decision, judgment, calculation, calculation, processing, derivation, investigation, search, confirmation, reception, transmission, output, access, solution, selection, selection, establishment, comparison, assumption, expectation, and assumption.
- broadcasting notifying, communicating, forwarding, configuring, reconfiguring, allocating, mapping, assigning, etc., but only these. I can't.
- a functional block (constituent unit) that functions transmission is called a transmitting unit or a transmitter.
- the method of realizing each of them is not particularly limited.
- the base station device 10, the user device 20, and the like in one embodiment of the present disclosure may function as a computer that processes the wireless communication method of the present disclosure.
- FIG. 8 is a diagram showing an example of the hardware configuration of the base station device 10 and the user device 20 according to the embodiment of the present disclosure.
- the above-mentioned base station device 10 and user device 20 are physically configured as a computer device including a processor 1001, a storage device 1002, an auxiliary storage device 1003, a communication device 1004, an input device 1005, an output device 1006, a bus 1007, and the like. May be done.
- the word “device” can be read as a circuit, device, unit, etc.
- the hardware configuration of the base station device 10 and the user device 20 may be configured to include one or more of the devices shown in the figure, or may be configured not to include some of the devices.
- the processor 1001 For each function in the base station device 10 and the user device 20, by loading predetermined software (program) on the hardware such as the processor 1001 and the storage device 1002, the processor 1001 performs an calculation and the communication device 1004 performs communication. It is realized by controlling or controlling at least one of reading and writing of data in the storage device 1002 and the auxiliary storage device 1003.
- the processor 1001 operates, for example, an operating system to control the entire computer.
- the processor 1001 may be composed of a central processing unit (CPU: Central Processing Unit) including an interface with a peripheral device, a control device, an arithmetic unit, a register, and the like.
- CPU Central Processing Unit
- control unit 140, control unit 240, and the like may be realized by the processor 1001.
- the processor 1001 reads a program (program code), a software module, data, or the like from at least one of the auxiliary storage device 1003 and the communication device 1004 into the storage device 1002, and executes various processes according to these.
- a program that causes a computer to execute at least a part of the operations described in the above-described embodiment is used.
- the control unit 140 of the base station device 10 shown in FIG. 6 may be realized by a control program stored in the storage device 1002 and operated by the processor 1001.
- the control unit 240 of the user device 20 shown in FIG. 7 may be realized by a control program stored in the storage device 1002 and operated by the processor 1001.
- Processor 1001 may be implemented by one or more chips.
- the program may be transmitted from the network via a telecommunication line.
- the storage device 1002 is a computer-readable recording medium, for example, by at least one of ROM (Read Only Memory), EPROM (Erasable Programmable ROM), EPROM (Electrically Erasable Programmable ROM), RAM (Random Access Memory), and the like. It may be configured.
- the storage device 1002 may be referred to as a register, a cache, a main memory (main storage device), or the like.
- the storage device 1002 can store a program (program code), a software module, or the like that can be executed to implement the communication method according to the embodiment of the present disclosure.
- the auxiliary storage device 1003 is a computer-readable recording medium, for example, an optical disk such as a CD-ROM (Compact Disc ROM), a hard disk drive, a flexible disk, a magneto-optical disk (for example, a compact disk, a digital versatile disk, Blu).
- -It may be composed of at least one of a ray (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, and the like.
- the storage medium described above may be, for example, a database, server or other suitable medium containing at least one of the storage device 1002 and the auxiliary storage device 1003.
- the communication device 1004 is hardware (transmission / reception device) for communicating between computers via at least one of a wired network and a wireless network, and is also referred to as, for example, a network device, a network controller, a network card, a communication module, or the like.
- the communication device 1004 includes, for example, a high frequency switch, a duplexer, a filter, a frequency synthesizer, and the like in order to realize at least one of frequency division duplex (FDD: Frequency Division Duplex) and time division duplex (TDD: Time Division Duplex). It may be composed of.
- FDD Frequency Division Duplex
- TDD Time Division Duplex
- the transmission / reception unit may be physically or logically separated from each other in the transmission unit and the reception unit.
- the input device 1005 is an input device (for example, a keyboard, a mouse, a microphone, a switch, a button, a 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 outputs to the outside.
- the input device 1005 and the output device 1006 may have an integrated configuration (for example, a touch panel).
- each device such as the processor 1001 and the storage device 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 base station device 10 and the user device 20 include a microprocessor, a digital signal processor (DSP: Digital Signal Processor), an ASIC (Application Specific Integrated Circuit), a PLD (Programmable Logic Device), an FPGA (Field Programmable Gate Array), and the like. It may be configured to include hardware, and the hardware may realize a part or all of each functional block. For example, processor 1001 may be implemented using at least one of these hardware.
- DSP Digital Signal Processor
- ASIC Application Specific Integrated Circuit
- PLD Programmable Logic Device
- FPGA Field Programmable Gate Array
- the receiving unit that receives the information requesting the report of the UE (User Equipment) capability from the base station apparatus and the control that includes the supporting UE capability in the report.
- UE User Equipment
- AS Access Stratum
- the user device 20 can transmit a report of UE capability to the base station device 10 in a state where AS security is enabled. That is, it is possible to improve the security when transmitting a report relating to the ability of the user device in the wireless communication system to the network.
- the transmitting unit does not have to transmit the report to the base station device when AS security with the base station device is not enabled.
- the user apparatus 20 can prevent the UE capability report from being transmitted to the base station apparatus 10 in a state where AS security is not enabled.
- the transmitting unit may ignore the information requesting the report of the UE capability when the AS security with the base station device is not enabled.
- the user apparatus 20 can prevent the UE capability report from being transmitted to the base station apparatus 10 in a state where AS security is not enabled.
- a transmitting unit that transmits information requesting a report of UE (User Equipment) capability to a user device and a receiving unit that receives the report from the user device.
- a control unit that identifies the UE capability supported based on the report, and the transmission unit is said to be the case where AS (Access Stratum) security with the base station device is enabled.
- a base station apparatus is provided that transmits information requesting a report to a user apparatus.
- the user device 20 can transmit a report of UE capability to the base station device 10 in a state where AS security is enabled. That is, it is possible to improve the security when transmitting a report relating to the ability of the user device in the wireless communication system to the network.
- the operation of the plurality of functional units may be physically performed by one component, or the operation of one functional unit may be physically performed by a plurality of components.
- the order of processing may be changed as long as there is no contradiction.
- the base station apparatus 10 and the user apparatus 20 have been described with reference to functional block diagrams, but such devices may be implemented in hardware, software, or a combination thereof.
- the software operated by the processor of the base station apparatus 10 according to the embodiment of the present invention and the software operated by the processor of the user apparatus 20 according to the embodiment of the present invention are random access memory (RAM), flash memory, and read, respectively. It may be stored in a dedicated memory (ROM), EPROM, EEPROM, registers, hard disk (HDD), removable disk, CD-ROM, database, server or any other suitable storage medium.
- information notification includes physical layer signaling (for example, DCI (Downlink Control Information), UCI (Uplink Control Information)), higher layer signaling (for example, RRC (Radio Resource Control) signaling, MAC (Medium Access Control) signaling, etc. Broadcast information (MIB (Master Information Block), SIB (System Information Block)), other signals, or a combination thereof may be used.
- RRC signaling may be referred to as an RRC message, for example, RRC. It may be a connection setup (RRCConnectionSetup) message, an RRC connection reconfiguration (RRCConnectionReconfiguration) message, or the like.
- Each aspect / embodiment described in the present disclosure includes LTE (Long Term Evolution), LTE-A (LTE-Advanced), SUPER 3G, IMT-Advanced, 4G (4th generation mobile communication system), and 5G (5th generation mobile communication).
- system FRA (Future Radio Access), NR (new Radio), W-CDMA (registered trademark), GSM (registered trademark), CDMA2000, UMB (Ultra Mobile Broadband), IEEE 802.11 (Wi-Fi (registered trademark)) )), LTE 802.16 (WiMAX®), IEEE 802.20, UWB (Ultra-WideBand), Bluetooth®, and other systems that utilize suitable systems and have been extended based on these. It may be applied to at least one of the next generation systems. Further, a plurality of systems may be applied in combination (for example, a combination of at least one of LTE and LTE-A and 5G).
- the specific operation performed by the base station apparatus 10 in the present specification may be performed by its upper node (upper node).
- various operations performed for communication with the user device 20 are other than the base station device 10 and the base station device 10. It is clear that this can be done by at least one of the network nodes (eg, MME or S-GW, etc., but not limited to these).
- the network nodes eg, MME or S-GW, etc., but not limited to these.
- the other network nodes may be a combination of a plurality of other network nodes (for example, MME and S-GW). Good.
- the information, signals, etc. described in the present disclosure 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 and the like may be saved in a specific location (for example, memory), or may be managed using a management table. Input / output information and the like can be overwritten, updated, or added. The output information and the like may be deleted. The input information or the like may be transmitted to another device.
- the determination in the present disclosure may be made by a value represented by 1 bit (0 or 1), by a true / false value (Boolean: true or false), or by comparing numerical values (for example). , Comparison with a predetermined value).
- Software is an instruction, instruction set, code, code segment, program code, program, subprogram, software module, whether called software, firmware, middleware, microcode, hardware description language, or another name.
- Applications, software applications, software packages, routines, subroutines, objects, executable files, execution threads, procedures, functions, etc. should be broadly interpreted to mean.
- software, instructions, information, etc. may be transmitted and received via a transmission medium.
- a transmission medium For example, a website that uses at least one of wired technology (coaxial cable, fiber optic cable, twist pair, digital subscriber line (DSL: Digital Subscriber Line), etc.) and wireless technology (infrared, microwave, etc.) When transmitted from a server, or other remote source, at least one of these wired and wireless technologies is included within the definition of transmission medium.
- data, instructions, commands, information, signals, bits, symbols, chips, etc. may be voltage, current, electromagnetic waves, magnetic fields or magnetic particles, light fields or photons, or any of these. It may be represented by a combination of.
- a channel and a symbol may be a signal (signaling).
- the signal may be a message.
- the component carrier CC: Component Carrier
- CC Component Carrier
- system and “network” used in this disclosure are used interchangeably.
- the information, parameters, etc. described in the present disclosure may be expressed using absolute values, relative values from predetermined values, or using other corresponding information. It may be represented.
- the radio resource may be one indicated by an index.
- base station Base Station
- wireless base station base station
- base station device fixed station
- NodeB nodeB
- eNodeB eNodeB
- GNB nodeB
- access point “ transmission point (transmission point) ”,“ reception point ”,“ transmission / reception point (transmission / reception point) ”,“ cell ”,“ sector ”,
- Terms such as “cell group,” “carrier,” and “component carrier” can be used interchangeably.
- Base stations are sometimes referred to by terms such as macrocells, small cells, femtocells, and picocells.
- the base station can accommodate one or more (for example, three) cells.
- 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 (eg, a small indoor base station (RRH:)).
- Communication services can also be provided by (Remote Radio Head).
- the term "cell” or “sector” is a part or all of the coverage area of at least one of the base station and the base station subsystem that provides the communication service in this coverage. Point to.
- MS Mobile Station
- UE User Equipment
- Mobile stations can be 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, depending on the trader. 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 transmitting device, a receiving device, a communication device, or the like.
- At least one of 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 or unmanned). ) May be.
- at least one of the base station and the mobile station 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 IoT (Internet of Things) device such as a sensor.
- IoT Internet of Things
- the base station in the present disclosure may be read by the user terminal.
- the communication between the base station and the user terminal is replaced with the communication between a plurality of user devices 20 (for example, it may be called D2D (Device-to-Device), V2X (Vehicle-to-Everything), etc.).
- D2D Device-to-Device
- V2X Vehicle-to-Everything
- Each aspect / embodiment of the present disclosure may be applied to the configuration.
- the user device 20 may have the functions of the base station device 10 described above.
- words such as "up” and “down” may be read as words corresponding to inter-terminal communication (for example, "side").
- the uplink, downlink, and the like may be read as side channels.
- the user terminal in the present disclosure may be read as a base station.
- the base station may have the functions of the user terminal described above.
- determining and “determining” used in this disclosure may include a wide variety of actions.
- “Judgment” and “decision” are, for example, judgment (judging), calculation (calculating), calculation (computing), processing (processing), derivation (deriving), investigation (investigating), search (looking up, search, inquiry). It may include (eg, searching in a table, database or another data structure), ascertaining as “judgment” or “decision”.
- judgment and “decision” are receiving (for example, receiving information), transmitting (for example, transmitting information), input (input), output (output), and access. (Accessing) (for example, accessing data in memory) may be regarded as “judgment” or “decision”.
- judgment and “decision” mean that “resolving”, “selecting”, “choosing”, “establishing”, “comparing”, etc. are regarded as “judgment” and “decision”. Can include. That is, “judgment” and “decision” may include that some action is regarded as “judgment” and “decision”. Further, “judgment (decision)” may be read as “assuming”, “expecting”, “considering” and the like.
- connection means any direct or indirect connection or connection between two or more elements, and each other. It can include the presence of one or more intermediate elements between two “connected” or “combined” elements.
- the connection or connection between the elements may be physical, logical, or a combination thereof.
- connection may be read as "access”.
- the two elements use at least one of one or more wires, cables and printed electrical connections, and, as some non-limiting and non-comprehensive examples, the radio frequency domain. Can be considered to be “connected” or “coupled” to each other using electromagnetic energies having wavelengths in the microwave and light (both visible and invisible) regions.
- the reference signal can also be abbreviated as RS (Reference Signal), and may be called a pilot (Pilot) depending on the applicable standard.
- RS Reference Signal
- Pilot Pilot
- references to elements using designations such as “first”, “second”, etc. as used in this disclosure does not generally limit the quantity or order of those elements. These designations can be used in the present 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 can be adopted, or that the first element must somehow precede the second element.
- the wireless frame may be composed of one or more frames in the time domain. Each one or more frames in the time domain may be referred to as a subframe. Subframes may further consist of one or more slots in the time domain.
- the subframe may have a fixed time length (eg, 1 ms) that is independent of numerology.
- the numerology may be a communication parameter that applies to at least one of the transmission and reception of a signal or channel.
- Numerology includes, for example, subcarrier spacing (SCS: SubCarrier Spacing), bandwidth, symbol length, cyclic prefix length, transmission time interval (TTI: Transmission Time Interval), number of symbols per TTI, wireless frame configuration, transmitter / receiver.
- SCS subcarrier spacing
- TTI Transmission Time Interval
- At least one of a specific filtering process performed in the frequency domain, a specific windowing process performed by the transmitter / receiver in the time domain, and the like may be indicated.
- the slot may be composed of one or more symbols (OFDM (Orthogonal Frequency Division Multiplexing) symbols, SC-FDMA (Single Carrier Frequency Division Multiple Access) symbols, etc.) in the time domain. Slots may be time units based on new melody.
- OFDM Orthogonal Frequency Division Multiplexing
- SC-FDMA Single Carrier Frequency Division Multiple Access
- the slot may include a plurality of mini slots. Each minislot may consist of one or more symbols in the time domain. Further, the mini slot may be called a sub slot. A minislot may consist of a smaller number of symbols than the slot.
- a PDSCH (or PUSCH) transmitted in time units larger than the minislot may be referred to as a PDSCH (or PUSCH) mapping type A.
- the PDSCH (or PUSCH) transmitted using the minislot may be referred to as PDSCH (or PUSCH) mapping type B.
- the wireless frame, subframe, slot, minislot and symbol all represent the time unit when transmitting a signal.
- the radio frame, subframe, slot, minislot and symbol may have different names corresponding to each.
- one subframe may be called a transmission time interval (TTI), a plurality of consecutive subframes may be called TTI, and one slot or one minislot may be called TTI.
- TTI transmission time interval
- the unit representing TTI may be called a slot, a mini slot, or the like instead of a subframe.
- TTI refers to, for example, the minimum time unit of scheduling in wireless communication.
- the base station schedules each user device 20 to allocate radio resources (frequency bandwidth that can be used in each user device 20, transmission power, etc.) in TTI units.
- the definition of TTI is not limited to this.
- the TTI may be a transmission time unit such as a channel-encoded data packet (transport block), a code block, or a code word, or may be a processing unit such as scheduling or link adaptation.
- the time interval for example, the number of symbols
- the transport block, code block, code word, etc. may be shorter than the TTI.
- one or more TTIs may be the minimum time unit for scheduling. Further, the number of slots (number of mini-slots) constituting the minimum time unit of the scheduling may be controlled.
- a TTI having a time length of 1 ms may be referred to as a normal TTI (TTI in LTE Rel. 8-12), a normal TTI, a long TTI, a normal subframe, a normal subframe, a long subframe, a slot, or the like.
- TTIs shorter than normal TTIs may be referred to as shortened TTIs, short TTIs, partial TTIs (partial or fractional TTIs), shortened subframes, short subframes, minislots, subslots, slots, and the like.
- the long TTI (for example, normal TTI, subframe, etc.) may be read as a TTI having a time length of more than 1 ms, and the short TTI (for example, shortened TTI, etc.) is less than the TTI length of the long TTI and 1 ms. It may be read as a TTI having the above TTI length.
- the resource block (RB) is a resource allocation unit in the time domain and the frequency domain, and may include one or a plurality of continuous subcarriers in the frequency domain.
- the number of subcarriers contained in the RB may be the same regardless of the numerology, and may be, for example, 12.
- the number of subcarriers contained in the RB may be determined based on numerology.
- the time domain of RB may include one or more symbols, and may have a length of 1 slot, 1 mini slot, 1 subframe, or 1 TTI.
- Each 1TTI, 1 subframe, etc. may be composed of one or a plurality of resource blocks.
- one or more RBs include a physical resource block (PRB: Physical RB), a sub-carrier group (SCG: Sub-Carrier Group), a resource element group (REG: Resource Element Group), a PRB pair, an RB pair, and the like. May be called.
- PRB Physical resource block
- SCG Sub-Carrier Group
- REG Resource Element Group
- PRB pair an RB pair, and the like. May be called.
- the resource block may be composed of one or a plurality of resource elements (RE: Resource Element).
- RE Resource Element
- 1RE may be a radio resource area of 1 subcarrier and 1 symbol.
- Bandwidth part (which may also be called partial bandwidth) may represent a subset of consecutive common resource blocks (RBs) for a certain neurology in a carrier.
- the common RB may be specified by the index of the RB with respect to the common reference point of the carrier.
- PRBs may be defined in a BWP and numbered within that BWP.
- the BWP may include a BWP for UL (UL BWP) and a BWP for DL (DL BWP).
- UL BWP UL BWP
- DL BWP DL BWP
- One or more BWPs may be set in one carrier for the UE.
- At least one of the configured BWPs may be active, and the UE may not expect to send or receive a given signal / channel outside the active BWP.
- “cell”, “carrier” and the like in this disclosure may be read as “BWP”.
- the above-mentioned structures such as wireless frames, subframes, slots, mini slots and symbols are merely examples.
- the number of subframes contained in a wireless frame the number of slots per subframe or wireless frame, the number of minislots contained within a slot, the number of symbols and RBs contained in a slot or minislot, included in the RB.
- the number of subcarriers, the number of symbols in the TTI, the symbol length, the cyclic prefix (CP: Cyclic Prefix) length, and other configurations can be changed in various ways.
- 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”.
- Terms such as “separate” and “combined” may be interpreted in the same way as “different”.
- the notification of predetermined information (for example, the notification of "being X") is not limited to the explicit one, but is performed implicitly (for example, the notification of the predetermined information is not performed). May be good.
- UECapacityEnquiry is an example of information requesting reporting of UE capability.
- UECapacity Information is an example of reporting UE capability.
- Base station device 110 Transmission unit 120 Reception unit 130 Setting unit 140 Control unit 20 User device 210 Transmission unit 220 Reception unit 230 Setting unit 240 Control unit 1001 Processor 1002 Storage device 1003 Auxiliary storage device 1004 Communication device 1005 Input device 1006 Output device
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Abstract
Description
次に、これまでに説明した処理及び動作を実行する基地局装置10及びユーザ装置20の機能構成例を説明する。基地局装置10及びユーザ装置20は上述した実施例を実施する機能を含む。ただし、基地局装置10及びユーザ装置20はそれぞれ、実施例の中の一部の機能のみを備えることとしてもよい。
図6は、本発明の実施の形態における基地局装置10の機能構成の一例を示す図である。図6に示されるように、基地局装置10は、送信部110と、受信部120と、設定部130と、制御部140とを有する。図6に示される機能構成は一例に過ぎない。本発明の実施の形態に係る動作を実行できるのであれば、機能区分及び機能部の名称はどのようなものでもよい。
図7は、本発明の実施の形態におけるユーザ装置20の機能構成の一例を示す図である。図7に示されるように、ユーザ装置20は、送信部210と、受信部220と、設定部230と、制御部240とを有する。図7に示される機能構成は一例に過ぎない。本発明の実施の形態に係る動作を実行できるのであれば、機能区分及び機能部の名称はどのようなものでもよい。
上記実施形態の説明に用いたブロック図(図6及び図7)は、機能単位のブロックを示している。これらの機能ブロック(構成部)は、ハードウェア及びソフトウェアの少なくとも一方の任意の組み合わせによって実現される。また、各機能ブロックの実現方法は特に限定されない。すなわち、各機能ブロックは、物理的又は論理的に結合した1つの装置を用いて実現されてもよいし、物理的又は論理的に分離した2つ以上の装置を直接的又は間接的に(例えば、有線、無線などを用いて)接続し、これら複数の装置を用いて実現されてもよい。機能ブロックは、上記1つの装置又は上記複数の装置にソフトウェアを組み合わせて実現されてもよい。
以上、説明したように、本発明の実施の形態によれば、UE(User Equipment)能力の報告を要求する情報を基地局装置から受信する受信部と、サポートするUE能力を前記報告に含める制御部と、前記基地局装置との間のAS(Access Stratum)セキュリティが有効化されている場合、前記報告を前記基地局装置に送信する送信部とを有するユーザ装置が提供される。
以上、本発明の実施の形態を説明してきたが、開示される発明はそのような実施形態に限定されず、当業者は様々な変形例、修正例、代替例、置換例等を理解するであろう。発明の理解を促すため具体的な数値例を用いて説明がなされたが、特に断りのない限り、それらの数値は単なる一例に過ぎず適切な如何なる値が使用されてもよい。上記の説明における項目の区分けは本発明に本質的ではなく、2以上の項目に記載された事項が必要に応じて組み合わせて使用されてよいし、ある項目に記載された事項が、別の項目に記載された事項に(矛盾しない限り)適用されてよい。機能ブロック図における機能部又は処理部の境界は必ずしも物理的な部品の境界に対応するとは限らない。複数の機能部の動作が物理的には1つの部品で行われてもよいし、あるいは1つの機能部の動作が物理的には複数の部品により行われてもよい。実施の形態で述べた処理手順については、矛盾の無い限り処理の順序を入れ替えてもよい。処理説明の便宜上、基地局装置10及びユーザ装置20は機能的なブロック図を用いて説明されたが、そのような装置はハードウェアで、ソフトウェアで又はそれらの組み合わせで実現されてもよい。本発明の実施の形態に従って基地局装置10が有するプロセッサにより動作するソフトウェア及び本発明の実施の形態に従ってユーザ装置20が有するプロセッサにより動作するソフトウェアはそれぞれ、ランダムアクセスメモリ(RAM)、フラッシュメモリ、読み取り専用メモリ(ROM)、EPROM、EEPROM、レジスタ、ハードディスク(HDD)、リムーバブルディスク、CD-ROM、データベース、サーバその他の適切な如何なる記憶媒体に保存されてもよい。
110 送信部
120 受信部
130 設定部
140 制御部
20 ユーザ装置
210 送信部
220 受信部
230 設定部
240 制御部
1001 プロセッサ
1002 記憶装置
1003 補助記憶装置
1004 通信装置
1005 入力装置
1006 出力装置
Claims (4)
- UE(User Equipment)能力の報告を要求する情報を基地局装置から受信する受信部と、
サポートするUE能力を前記報告に含める制御部と、
前記基地局装置との間のAS(Access Stratum)セキュリティが有効化されている場合、前記報告を前記基地局装置に送信する送信部とを有するユーザ装置。 - 前記送信部は、前記基地局装置との間のASセキュリティが有効化されていない場合、前記報告を前記基地局装置に送信しない請求項1記載のユーザ装置。
- 前記送信部は、前記基地局装置との間のASセキュリティが有効化されていない場合、前記報告を要求する情報を無視する請求項1記載のユーザ装置。
- UE(User Equipment)能力の報告を要求する情報をユーザ装置に送信する送信部と、
前記報告を前記ユーザ装置から受信する受信部と、
前記報告に基づいてサポートされるUE能力を特定する制御部とを有し、
前記送信部は、前記ユーザ装置との間のAS(Access Stratum)セキュリティが有効化されている場合、前記報告を要求する情報を前記ユーザ装置に送信する基地局装置。
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JP2021519365A JP7373559B2 (ja) | 2019-05-16 | 2020-04-28 | ユーザ装置及び無線通信システム |
CN202080035243.2A CN113841435A (zh) | 2019-05-16 | 2020-04-28 | 用户装置以及基站装置 |
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