WO2021064841A1 - 端末及び通信方法 - Google Patents
端末及び通信方法 Download PDFInfo
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- WO2021064841A1 WO2021064841A1 PCT/JP2019/038654 JP2019038654W WO2021064841A1 WO 2021064841 A1 WO2021064841 A1 WO 2021064841A1 JP 2019038654 W JP2019038654 W JP 2019038654W WO 2021064841 A1 WO2021064841 A1 WO 2021064841A1
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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
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/04—Wireless resource allocation
- H04W72/044—Wireless resource allocation based on the type of the allocated resource
- H04W72/0453—Resources in frequency domain, e.g. a carrier in FDMA
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/50—Allocation or scheduling criteria for wireless resources
- H04W72/51—Allocation or scheduling criteria for wireless resources based on terminal or device properties
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W76/00—Connection management
- H04W76/10—Connection setup
- H04W76/15—Setup of multiple wireless link connections
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
- H04W88/02—Terminal devices
- H04W88/06—Terminal devices adapted for operation in multiple networks or having at least two operational modes, e.g. multi-mode terminals
Definitions
- the present invention relates to a terminal (user device) and a communication method in a wireless communication system.
- Non-Patent Document 1 a new wireless communication system called NR (New Radio Access Technology) system is being formulated as a successor to the LTE (Long Term Evolution) system and LTE-Advanced system.
- NR New Radio Access Technology
- the data is divided between the base station (eNB) of the LTE system and the base station (gNB) of the NR system, and the data is transmitted and received simultaneously by these base stations.
- eNB base station
- gNB base station
- MR-DC multi-RAT dual connectivity
- the user device In MR-DC, the user device is notified of a list in which the band specified by E-UTRA (Evolved Universal Terrestrial Radio Access) and the band specified by NR are mixed. The user device determines from the list the bandwidth combinations supported by the user device.
- the band combination to be the target of the bandwidth combination supported by the user device the inter-band multi-RAT dual connectivity (inter-band EN-DC) and the intra-band multi-TRA dual connectivity (EN-in-band) of E-UTRA and NR are used.
- a band combination of DC is conceivable.
- the method of notifying the base station device of the bandwidth combination (BWCS) for the band combination of the inter-band EN-DC and the in-band EN-DC is not specified.
- the present invention has been made in view of the above points, and in a wireless communication system using a plurality of RATs (E-UTRA and NR), the bandwidth with respect to the band combination of the interband EN-DC and the in-band EN-DC.
- An object of the present invention is to provide a technique for notifying a base station device of a combination from a user device.
- the terminal has a receiver that receives band information of the first radio access technology (RAT) and the second RAT from the base station apparatus, and the first RAT and the second RAT.
- a first parameter indicating a supported bandwidth combination set for the first RAT component of the dual connectivity (EN-DC) band combination and a component of the second RAT of the EN-DC band combination.
- a second parameter indicating a supported bandwidth combination set for, and a supported bandwidth combination of the EN-DC band combination for the first RAT and the second RAT component in the band.
- a control unit that determines a third parameter indicating a set, and terminal capability information including the determined first parameter, the second parameter, and the third parameter are transmitted to the base station apparatus. It has a transmitter.
- the terminal can notify the base station device of information regarding the band combination of dual connectivity.
- FIG. 5 is a sequence diagram in which a user device 20 according to an embodiment of the present invention notifies a base station device 10 of a capability. It is a figure which shows the notification example (the 1) of the bandwidth combination with respect to the band combination of the band EN-DC and the band EN-DC. It is a figure which shows the notification example (the 1) of the bandwidth combination with respect to the band combination of the band EN-DC and the band EN-DC. It is a figure which shows the notification example (the 1) of the bandwidth combination with respect to the band combination of the band EN-DC and the band EN-DC.
- FIG. 1 is a configuration example of a wireless communication system according to an embodiment of the present invention.
- the user apparatus 20 is a base station apparatus 10A and a base station apparatus 10B provided by the LTE system and the NR system, respectively (hereinafter, when the base station apparatus 10A and the base station apparatus 10B are not distinguished, “base”. It may be referred to as "station device 10"), and LTE-NR dual connectivity (also referred to as EN-DC) in which the base station device 10A is the master base station and the base station device 10B is the secondary base station.
- the user device 20 simultaneously uses the plurality of component carriers provided by the master base station device 10A and the secondary base station device 10B to simultaneously transmit or receive the master base station device 10A and the secondary base station device 10B. It is possible to do it.
- the LTE system and the NR system each have only one base station, but in general, a large number of base stations are arranged so as to cover the service area of the LTE system and the NR system.
- LTE-NR dual connectivity LTE-NR dual connectivity
- the user apparatus is not limited to this, and for example, the base station apparatus 10A of the NR system is used as the master base station.
- NR-LTE dual connectivity also referred to as NE-DC
- the base station device 10B of the LTE system is used as a secondary base station, and dual connectivity between a plurality of wireless communication systems using different RATs. That is, it will be easily understood by those skilled in the art that it is applicable to MR-DC.
- FIG. 2 is a sequence diagram in which the user device 20 according to the embodiment of the present invention notifies the base station device 10 of the terminal capability.
- the base station apparatus 10 transmits a terminal capability notification request to the user apparatus 20, and the user apparatus 20 transmits a terminal capability notification to the base station apparatus 10 in response to the terminal capability notification request.
- the base station device 10 transmits an RRC (Radio Resource Control) message "UECapacityEnquiry" to the user device 20 as a terminal capability notification request.
- the UECapacityEnquiry is used to acquire information on the wireless access capability of the user device 20 on the network.
- the base station apparatus 10 can specify the type of wireless access capability included in the information to be notified to the user apparatus 20 by the UE Capacity Enquiry.
- the base station apparatus 10 may request notification of the radio access capability for the bandwidth combination supported by the user apparatus 20.
- the base station apparatus 10 may request the notification of the bandwidth combination supported by the user apparatus 20 for the band combination composed of the bands included in the list "requested FreqBandList" to be notified to the user apparatus 20.
- step S2 the user device 20 transmits an RRC message “UECapacity Information” to the base station device 10 as a terminal capability notification.
- the UE Capacity Information is used to notify the network of information about the wireless access capability of the user device 20.
- the user apparatus 20 transmits information regarding the wireless access capability supported by the user apparatus 20 to the base station apparatus 10 based on the UE Capacity Energy received from the base station apparatus 10 in step S1.
- step S3 the base station apparatus 10 performs normal communication adapted to the terminal capability by the UE Capacity Information received from the user apparatus 20 in step S2. For example, if the UE Capacity Information received from the user apparatus 20 in step S2 includes a supported bandwidth combination, the base station apparatus 10 schedules within the range of the supported bandwidth combinations.
- FIG. 1 is diagrams showing an example of notification (No. 1) of the bandwidth combination for the band combination of the interband EN-DC and the in-band EN-DC.
- the user apparatus 20 supports as one of the information elements of the terminal capability transmitted from the user apparatus 20 to the base station apparatus 10.
- BandCombinationList which is a parameter for notifying the bandwidth combination
- the BandCombinationList includes a supportedBandwiseCombinationSet, which is a field for notifying the bandwidth combination supported by the user apparatus 20.
- the supportedBandwiseCombinationSet is a bitmap of up to 32 bits, and the user apparatus 20 can notify up to 32 bandwidth combinations supported by the user apparatus 20.
- this field "supportedBandwiseCombinationSet” is a bandwidth combination (or bandwidth combination set) supported by the user device 20 that is applicable to NR and LTE band combinations.
- Supported bandwise combination set) (supported BWCS) is set.
- the first bit (leftmost bit) of the supportedBandwiseCombinationSet bitmap corresponds to bandwidth combination # 0 (BWCS # 0), and the second bit corresponds to bandwidth combination # 1 (BWCS # 1).
- the bit is set to 1, the user device 20 supports the corresponding bandwidth combination.
- any combination (any combination) of the NR portion of the bandwidth combination indicated by this field and the E-UTRA portion of the bandwidth combination indicated by the parameter supportedBandwiseCombinationSetEUTRA may be used.
- the user device 20 may be supported.
- the parameter supportedBandwiseCombinationSetEUTRA is a field included in CA-ParamatorsEUTRA, which is one of the information elements (information elements) of the terminal capability transmitted from the user device 20 to the base station device 10.
- EN-DC band combinations consisting of interband EN-DC and intraband EN-DC
- this field spans all bands of interband and intraband EN-DC (all bands were considered).
- the bandwidth combinations supported by the user device 20 are shown.
- the BandCombinationList which is a parameter for notifying the bandwidth combination supported by the user device 20
- the BandCombinationList is included in the band supported by the user device 20.
- a supportedBandwiseCombinationSetIntra MRDC which is a field for notifying the bandwidth combination with respect to the band combination of the MR-DC.
- this field is set to a bandwidth combination supported by the user device 20, which is applicable to NR and LTE band combinations.
- the first bit (leftmost bit) of the supportedBandwiseCombinationSetIntraMRDC bitmap corresponds to bandwidth combination # 0 (BWCS # 0), and the second bit corresponds to bandwidth combination # 1 (BWCS # 1).
- BWCS # 0 bandwidth combination # 0
- BWCS # 1 bandwidth combination # 1
- the supported bandwidth combinations are the NR portion of the bandwidth combination indicated by supportedBandwiseCombinationSetNR and the E-UTRA portion of the bandwidth combination indicated by supportedBandwiseCombinationSetEUTRA. any combination).
- the parameter supportedBandwiseCombination EUTRA is a field included in CA-Paramators EUTRA, which is one of the information elements (information elements) of the terminal capability transmitted from the user device 20 to the base station device 10.
- the parameter supportedBandwiseCombinationSetNR is a field included in CA-ParametersNR, which is one of the information elements (information elements) of the terminal capability transmitted from the user device 20 to the base station device 10.
- the name of the parameter is not limited to the supportedBandwiseCombinationSetNR, and may be another name.
- the BandCombinationList which is a parameter for notifying the bandwidth combination supported by the user apparatus 20, includes the user apparatus.
- 20 includes a supportedBandwiseCombinationSetIntraMRDC, which is a field for notifying a bandwidth combination set for a band combination of in-band MR-DCs supported by 20.
- the name of the parameter is not limited to the supportedBandwiseCombinationSetIntraMRDC, and may be another name.
- the components of E-UTRA-NR in the band of the EN-DC band combination (EN-DC band combination) (intra-band E-UTRA and NR component) (that is, the carrier frequency range in which the same carrier frequency range is supported) are supported.
- the bandwidth combination set supported by the user device 20 applied to the component consisting of the E-UTRA and the NR band is shown.
- the first bit (leftmost bit) of the supportedBandwiseCombinationSetIntraMRDC bitmap corresponds to bandwidth combination set # 0 (BWCS # 0), and the second bit corresponds to bandwidth combination set # 1 (BWCS # 1).
- the user device 20 supports the corresponding bandwidth combination set.
- An example of a bandwidth combination set of E-UTRA-NR in a band composed of an E-UTRA band and an NR band having the same frequency range (frequency band) is "E-UTRA band 3 + NR band n3". Be done.
- the supported bandwidth combination sets are the NR portion of the bandwidth combination set indicated by supportedBandwiseCombinationSetNR and the bandwidth combination set E of the bandwidth combination set EUTRA indicated by supportedBandwiseCombinationSetEUTRA. Any combination with and (any combination).
- Examples of the NR portion of the bandwidth combination set indicated by supportedBandwiseCombinationSetNR include "NR band n3 + NR band n78".
- Examples of the E-UTRA portion of the bandwidth combination set indicated by supportedBandwiseCombinationSetEUTRA include "E-UTRA band 1 + E-UTRA band 3" and the like.
- the parameter supportedBandwiseCombinationSetEUTRA is a field included in CA-ParamatorsEUTRA, which is one of the information elements (information elements) of the terminal capability transmitted from the user device 20 to the base station device 10.
- the name of the parameter is not limited to the supportedBandwiseCombinationSetEUTRA, and may be another name.
- the supportedBandwiseCombinationSetEUTRA is an E-UTRA component of the EN-DC band combination (ie, an in-band E-UTRA and / or an inter-band E of the EN-DC band combination). -Shows the bandwidth combination set supported by the user device 20 applied to (a component consisting only of the UTRA band).
- the first bit (leftmost bit) of the supportedBandwiseCombination EUTRA bitmap corresponds to bandwidth combination set # 0 (BWCS # 0), and the second bit corresponds to bandwidth combination set # 1 (BWCS # 1). Correspond.
- the bit is set to 1, the user device 20 supports the corresponding bandwidth combination set (see Non-Patent Document 3).
- the parameter supportedBandwiseCombinationSetNR is a field included in CA-ParametersNR, which is one of the information elements (information elements) of the terminal capability transmitted from the user device 20 to the base station device 10.
- the name of the parameter is not limited to the supportedBandwiseCombinationSetNR, and may be another name.
- the supportedBandwiseCombinationSetNR is a component (NR component) of the NR of the EN-DC band combination (that is, a component consisting of only the in-band NR of the EN-DC band combination and / or the interband NR band). Shown is the bandwidth combination set supported by the user device 20 applied to it.
- the first bit (leftmost bit) of the supportedBandwiseCombinationSetNR bitmap corresponds to bandwidth combination set # 0 (BWCS # 0), and the second bit corresponds to bandwidth combination set # 1 (BWCS # 1). Correspond.
- the bit is set to 1, the user device 20 supports the corresponding bandwidth combination set. (See Non-Patent Document 4, Non-Patent Document 5, Non-Patent Document 6).
- the bandwidth combination set of E-UTRA represented by the above-mentioned supportedBandwiseCombinationSetEUTRA includes channel bandwidths (channelbandwise) of 10 MHz and 20 MHz, and is indicated by the above-mentioned
- the bandwidth combination set includes a channel bandwidth of 20 MHz
- the user apparatus 20 sets a channel bandwidth of 20 MHz, which is a product set of the above two channel bandwidths, with respect to the band 3A in EN-DC. to support.
- Each of the base station apparatus 10 and the user apparatus 20 includes a function of carrying out at least an 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.
- 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.
- 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 transmits a message for requesting terminal capability notification to the user device 20, information indicating UL or DL scheduling, and the reception unit 120 receives a message related to the terminal capability notification from the user device 20.
- the setting unit 130 stores preset setting information and various setting information to be transmitted to the user device 20.
- the contents of the setting information are, for example, information on band combinations, information on terminal capabilities, and the like.
- the control unit 140 receives the terminal capability notification request message to the user apparatus 20 in the base station apparatus 10, for example, the control related to the transmission of the UE Capacity Environment, and the terminal capability notification from the user apparatus 20, and the control unit 140 receives the terminal capability notification. Controls to execute communication according to the terminal capability.
- FIG. 7 is a diagram showing an example of the functional configuration of the user device 20.
- 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.
- the receiving unit 120 receives a message regarding the terminal capability notification request and information indicating UL or DL scheduling from the base station apparatus 10.
- 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 on a band combination, information on a terminal capability notification, and the like.
- the control unit 240 controls the generation and transmission of the terminal capability notification message, for example, the UE Capacity Information, which is transmitted from the user device 20 to the base station device 10 described in the embodiment.
- the transmission unit 210 may include a functional unit related to the transmission of the terminal capability notification message in the control unit 240
- the receiving unit 220 may include the functional unit related to the reception of the terminal capability notification request message in the control unit 240.
- 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 limited to these I can't.
- a functional block (constituent unit) that functions transmission is called a transmitting unit (transmitting unit) or a transmitter (transmitter).
- transmitting unit transmitting unit
- transmitter transmitter
- 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, the processor 1001 performs an operation by loading predetermined software (program) on the hardware such as the processor 1001 and the storage device 1002, 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.
- 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 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, and is, for example, an optical disk such as a CD-ROM (Compact Disc ROM), a hard disk drive, a flexible disk, an optical magnetic 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 auxiliary storage device 1003 may be referred to as an auxiliary storage device.
- 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 band information of the first radio access technology (RAT) and the second RAT from the base station apparatus, and the first RAT.
- the first parameter indicating the supported bandwidth combination (supported BWCS) for the first RAT portion with respect to the interband dual connectivity (interband EN-DC) of the second RAT, and the first parameter.
- the BWCS supported for the portion of the second RAT is shown for the inter-band EN-DC of the first RAT and the second RAT, and the dual connectivity within the band of the first RAT and the second RAT.
- the supported BWCS applicable to the band combination of the first RAT and the second RAT is shown, and the inter-band EN-DC and the in-band EN-DC are shown.
- a second parameter indicating a supported BWCS over all bands of the interband EN-DC and the intraband EN-DC is shown.
- the second RAT portion of the BWCS indicated by the second parameter and the first RAT of the BWCS indicated by the first parameter has a control unit that determines that any combination with the portion of the above is supported, and a transmission unit that transmits the determined terminal capability information including the first parameter and the second parameter to the base station apparatus.
- User equipment is provided.
- the receiving unit that receives the band information of the first radio access technology (RAT) and the second RAT from the base station apparatus, the first RAT, and the second RAT.
- a first parameter indicating a supported bandwidth combination (supported BWCS) for the portion of the first RAT for interband dual connectivity of the RAT (interband EN-DC), and the first RAT and the first.
- the second parameter indicating the supported BWCS for the second RAT portion for the in-band dual connectivity (in-band EN-DC) of the second RAT, and the first for the in-band EN-DC.
- the supported BWCS applicable to the band combination of the RAT and the second RAT is shown, and the dual connectivity of the first RAT and the second RAT including the interband EN-DC and the in-band EN-DC.
- the third parameter which indicates the supported BWCS over the entire band of the interband EN-DC and the in-band EN-DC, and here for the band combination of the interband EN-DC. Determines that any combination of the second RAT portion of the BWCS indicated by the second parameter and the first RAT portion of the BWCS indicated by the first parameter is supported.
- a user device including a control unit and a transmission unit for transmitting terminal capability information including the determined first parameter, the second parameter, and the third parameter to the base station device is provided.
- the boundary of the functional unit or the processing unit in the functional block diagram does not always correspond to the boundary of the physical component.
- 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 processing order may be changed as long as there is no contradiction.
- the base station device 10 and the user device 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.
- 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 stored 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 whether referred to as software, firmware, middleware, microcode, hardware description language, or by any other name, is an instruction, instruction set, code, code segment, program code, program, subprogram, software module.
- Applications, software applications, software packages, routines, subroutines, objects, executable files, execution threads, procedures, features, etc. should be broadly interpreted.
- 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.
- the information, signals, etc. described in this disclosure may be represented using any of a variety of different techniques.
- data, instructions, commands, information, signals, bits, symbols, chips, etc. that may be referred to throughout the above description are voltages, currents, 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 ”,“ 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 (for example, a car, an airplane, etc.), an unmanned moving body (for example, a drone, an autonomous vehicle, etc.), or a robot (manned or unmanned type). ) 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
- 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). (For example, searching in a table, database or another data structure), ascertaining may be regarded 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 the things such as solving, selecting, choosing, establishing, and comparing are regarded as “judgment” and “decision”. Can include. That is, “judgment” and “decision” may include considering some action 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.
- each of the above devices may be replaced with a "part”, a “circuit”, a “device”, or the like.
- 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 does not depend on 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, and 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 in the time domain (OFDM (Orthogonal Frequency Division Multiplexing) symbol, SC-FDMA (Single Carrier Frequency Division Multiple Access) symbol, etc.). Slots may be in time units based on numerology.
- 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.
- the mini-slot may also be referred to as a sub-slot.
- a minislot may consist of a smaller number of symbols than the slot.
- PDSCH (or PUSCH) transmitted in time units larger than the minislot may be referred to as 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)
- TTI transmission time interval
- TTI transmission time interval
- TTI transmission time interval
- TTI transmission time interval
- TTI time interval
- TTI transmission time interval
- TTI transmission time interval
- TTI slot or one minislot
- You may. That is, at least one of the subframe and TTI may be a subframe (1 ms) in existing LTE, a period shorter than 1 ms (eg, 1-13 symbols), or a period longer than 1 ms. It may be.
- 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) length, and the like 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.
- the transmitting unit 210 and the receiving unit 220 are examples of communication units.
- the MN is an example of the first base station apparatus.
- the SN is an example of a second base station device.
- the supportedBandwiseCombinationSetEUTRA is an example of the first parameter
- the supportedBandwiseCombinationSet and the supportedBandwiseCombinationSetNR are one example of the second parameter
- the supportedBandwiseCombinationSetNR is an example of the second parameter.
- LTE is an example of the first RAT
- NR is an example of the second RAT.
- Base station device 200 User device 110 Transmission unit 120 Reception unit 130 Setting unit 140 Control unit 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
図3A、図3B、図3C、及び図3Dは、バンド間EN-DCとバンド内EN-DCのバンドコンビネーションに対するバンド幅コンビネーションの通知例(その1)を示す図である。
図4A、図4B、図4C、図4D、及び図4Eは、バンド間EN-DCとバンド内EN-DCのバンドコンビネーションに対するバンド幅コンビネーションの通知例(その2)を示す図である。
図5A、図5B、図5C、図5D、図5E、図5F、及び図5Gは、バンド間EN-DCとバンド内EN-DCのバンドコンビネーションに対するバンド幅コンビネーションの通知例(その3)を示す図である。
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はそれぞれ、少なくとも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。
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、本発明の実施形態によれば、第1の無線アクセス技術(RAT)と第2のRATのバンドの情報を基地局装置から受信する受信部と、前記第1のRATと前記第2のRATのバンド間デュアルコネクティビティ(バンド間EN-DC)に対する、前記第1のRATの部分に対するサポートされるバンド幅コンビネーション(被サポートBWCS)を示す第1のパラメータと、前記第1のRATと前記第2のRATの前記バンド間EN-DCに対しては、前記第2のRATの部分に対する被サポートBWCSを示し、前記第1のRATと前記第2のRATのバンド内デュアルコネクティビティ(バンド内EN-DC)に対しては、前記第1のRATと前記第2のRATのバンドコンビネーションに適用可能なサポートされるBWCSを示し、前記バンド間EN-DCおよび前記バンド内EN-DCから成る前記第1のRATと前記第2のRATのデュアルコネクティビティに対しては、前記バンド間EN-DCおよび前記バンド内EN-DCのバンドのすべてにわたる被サポートBWCSを示す、第2のパラメータと、ここで、前記バンド間EN-DCのバンドコンビネーションに対して、前記第2のパラメータによって示されるBWCSの前記第2のRATの部分と、前記第1のパラメータによって示されるBWCSの第1のRATの部分との任意の組合せがサポートされる、を決定する制御部と、決定した前記第1のパラメータと前記第2のパラメータを含む端末能力情報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。
200 ユーザ装置
110 送信部
120 受信部
130 設定部
140 制御部
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 (3)
- 第1の無線アクセス技術(RAT)と第2のRATのバンドの情報を基地局装置から受信する受信部と、
前記第1のRATと前記第2のRATのデュアルコネクティビティ(EN-DC)バンドコンビネーションの前記第1のRATの成分に対する、サポートされるバンド幅コンビネーション・セットを示す第1のパラメータと、
前記EN-DCバンドコンビネーションの前記第2のRATの成分に対する、サポートされるバンド幅コンビネーション・セットを示す第2のパラメータと、
前記EN-DCバンドコンビネーションの、バンド内の前記第1のRATおよび前記第2のRATの成分に対する、サポートされるバンド幅コンビネーション・セットを示す、第3のパラメータと、
を決定する制御部と、
決定した前記第1のパラメータと前記第2のパラメータと前記第3のパラメータを含む端末能力情報を前記基地局装置に送信する送信部とを有する、
端末。 - 前記第1のRATと前記第2のRATのバンド間デュアルコネクティビティ(バンド間EN-DC)に対して、前記第2のパラメータによって示されるバンド幅コンビネーションの前記第2のRATの部分と、前記第1のパラメータによって示されるバンド幅コンビネーションの前記第1のRATの部分との任意の組合せがサポートされる、請求項1記載の端末。
- 第1の無線アクセス技術(RAT)と第2のRATのバンドの情報を基地局装置から受信するステップと、
前記第1のRATと前記第2のRATのデュアルコネクティビティ(EN-DC)バンドコンビネーション前記第1のRATの成分に対する、サポートされるバンド幅コンビネーション・セットを示す第1のパラメータと、
前記EN-DCバンドコンビネーションの前記第2のRATの成分に対する、サポートされるバンド幅コンビネーション・セットを示す第2のパラメータと、
前記EN-DCバンドコンビネーションの、バンド内の前記第1のRATおよび前記第2のRATの成分に対する、サポートされるバンド幅コンビネーション・セットを示す、第3のパラメータと、
を決定するステップと、
決定した前記第1のパラメータと前記第2のパラメータと前記第3のパラメータを含む端末能力情報を前記基地局装置に送信するステップとを有する、
端末の通信方法。
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- 2019-09-30 WO PCT/JP2019/038654 patent/WO2021064841A1/ja unknown
- 2019-09-30 CA CA3153835A patent/CA3153835A1/en active Pending
- 2019-09-30 EP EP19947725.8A patent/EP4040822A4/en active Pending
- 2019-09-30 BR BR112022005432A patent/BR112022005432A2/pt unknown
- 2019-09-30 CN CN201980100802.0A patent/CN114503623B/zh active Active
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Also Published As
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CA3153835A1 (en) | 2021-04-08 |
JP7520027B2 (ja) | 2024-07-22 |
JPWO2021064841A1 (ja) | 2021-04-08 |
BR112022005432A2 (pt) | 2022-06-21 |
CN114503623A (zh) | 2022-05-13 |
EP4040822A4 (en) | 2023-06-14 |
CN114503623B (zh) | 2023-12-01 |
US20220346095A1 (en) | 2022-10-27 |
EP4040822A1 (en) | 2022-08-10 |
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