WO2020170445A1 - 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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- WO2020170445A1 WO2020170445A1 PCT/JP2019/006884 JP2019006884W WO2020170445A1 WO 2020170445 A1 WO2020170445 A1 WO 2020170445A1 JP 2019006884 W JP2019006884 W JP 2019006884W WO 2020170445 A1 WO2020170445 A1 WO 2020170445A1
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- Prior art keywords
- bwp
- base station
- information
- user
- predetermined parameter
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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
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/0091—Signaling for the administration of the divided path
- H04L5/0094—Indication of how sub-channels of the path are allocated
Definitions
- the present invention relates to a user device and a base station device in a wireless communication system.
- NR New Radio
- LTE Long Term Evolution
- NR uses a method in which a user device uses part of the carrier bandwidth as a BWP (Bandwidth part).
- the BWP is composed of consecutive PRBs (Physical Resource Blocks).
- up to four BWPs can be set in the user apparatus in DL (Downlink) or UL (Uplink), respectively.
- the user device uses one active BWP to perform communication (for example, Non-Patent Document 2).
- the user equipment can set the BWP based on the parameters common to the cells or the individual parameters of the user equipment.
- the parameter designating the frequency domain is duplicated in the parameter common to the cells and the parameter specific to the user apparatus, and the operation designating the BWP may not be specified.
- the present invention has been made in view of the above points, and an object thereof is to appropriately set communication to which BWP is applied in a wireless communication system.
- a receiving unit that receives information specifying a BWP (Bandwidth part) from a base station device, a predetermined parameter common to cells included in the information specifying the BWP, and a predetermined parameter unique to a user device.
- a communication unit that communicates with the base station apparatus using the set BWP, wherein the predetermined parameter is a sub-use of the BWP available.
- User equipment which is information indicating the lower limit of the carrier, is provided.
- FIG. 1 is a diagram for explaining a wireless communication system according to an embodiment of the present invention. It is a figure for demonstrating BWP. It is a figure for demonstrating the operation
- FIG. 7 is a sequence diagram for explaining an operation example in the embodiment of the present invention. It is a specification change example (1) according to an operation example in the embodiment of the present invention. It is a specification change example (2) related to an operation example in the embodiment of the present invention. It is a specification change example (3) according to an operation example in the embodiment of the present invention. It is a figure showing an example of functional composition of base station device 10 in an embodiment of the invention. It is a figure showing an example of functional composition of user device 20 in an embodiment of the invention. It is a figure which shows an example of the hardware constitutions of the base station apparatus 10 or the user apparatus 20 in embodiment of this invention.
- LTE Long Term Evolution
- LTE-Advanced LTE-Advanced and subsequent schemes (eg, NR) unless otherwise specified.
- SS Synchronization signal
- PSS Primary SS
- SSS Secondary SS
- PBCH Physical broadcast channel
- PRACH Physical Random access channel
- the duplex system may be a TDD (Time Division Duplex) system, an FDD (Frequency Division Duplex) system, or other (for example, Flexible Duplex). May be used.
- “configuring” a wireless parameter and the like may mean that a predetermined value is preset (Pre-configure), or the base station device 10 Alternatively, the wireless parameter notified from the user device 20 may be set.
- FIG. 1 is a diagram for explaining a wireless communication system according to an embodiment of the present invention.
- the wireless communication system in the embodiment of the present invention includes a base station device 10 and a user device 20, as shown in FIG. Although one base station apparatus 10 and one user apparatus 20 are shown in FIG. 1, this is an example, and a plurality of each may be provided.
- 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 resource of the radio signal is 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 device 10 transmits the synchronization signal and the system information to the user device 20.
- the synchronization signal is, for example, NR-PSS and NR-SSS.
- the system information is transmitted on the NR-PBCH, for example, and is also called broadcast information. As illustrated in FIG.
- the base station device 10 transmits a control signal or data to the user device 20 by DL (Downlink), and receives a control signal or data from the user device 20 by UL (Uplink). Both the base station apparatus 10 and the user apparatus 20 can perform beamforming to transmit and receive signals. Further, both the base station device 10 and the user device 20 can apply the communication by MIMO (Multiple Input Multiple Output) to DL or UL. Moreover, both the base station apparatus 10 and the user apparatus 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. 1, the user equipment 20 receives a control signal or data from the base station apparatus 10 in DL and transmits the control signal or data to the base station apparatus 10 in UL, thereby providing the wireless communication system. Use various communication services.
- FIG. 2 is a diagram for explaining BWP.
- FIG. 2 is an example in which four BWPs (Bandwidth parts) of BWP#0, BWP#1, BWP#2, and BWP#3 are set.
- the four BWPs shown in FIG. 2 may be set to DL or UL.
- the four BWPs shown in FIG. 2 are arranged in the carrier bandwidth of a cell.
- BWP#0 is an initial BWP (initial BWP).
- the initial BWP may be specified from an upper layer, or may be specified by a part of a control resource set of a Type 0 PDCCH (Physical Downlink Control Channel) common search space, and is used when establishing a connection.
- the BWP used is an active BWP.
- the BWP used when the inactivity timer related to BWP expires is the default BWP (default BWP). If the default BWP is not specified by the upper layer, the initial BWP is used as the default BWP.
- the initial BWP may be the initial DL BWP or the initial UL BWP.
- the default BWP may be the default DL BWP or the default UL BWP.
- the active BWP may be an active DL BWP or an active UL BWP.
- FIG. 3 is a diagram for explaining the operation of setting the BWP.
- the reference point “Point A” that is the starting point of the offset is defined in the frequency domain.
- “Point A” can be set by, for example, the information element "absoluteFrequencyPointA”.
- the lower limit of SS/PBCH block (Synchronization Signal/Physical Broadcast Channel block) subcarriers is set by the information element "offsetToPointA" that indicates the offset from "Point A”. Further, the lower limit of usable subcarriers of BWP is set by an information element "offsetToCarrier” indicating an offset from "Point A”.
- FIG. 4 is a sequence diagram for explaining an operation example in the embodiment of the present invention. An operation example in which the user device 20 sets a BWP and performs communication will be described with reference to FIG.
- step S1 the base station device 10 transmits “SIB1”, which is system information applied commonly to cells, to the user device 20.
- the user apparatus 20 sets the parameter applied commonly to the cells by “SIB1”.
- "SIB1” includes an information element "SCS-SpecificCarrier”.
- the “SCS-Specific Carrier” includes “offsetToCarrier”, and the user equipment 20 can set the lower limit of usable subcarriers of BWP.
- step S2 the base station device 10 transmits, to the user device 20, an information element “ServingCellConfig” that is individually applied to the UE (User Equipment).
- the “ServingCellConfig” may be received by the user device 20 via the RRC reconfiguration message.
- the user apparatus 20 sets the parameter applied to each UE by “ServingCellConfig”.
- “ServingCellConfig” includes an information element “downlinkChannelBW-PerSCS-List”.
- DownlinkChannelBW-PerSCS-List is an information element that includes UE-specific carrier settings for each subcarrier interval (Numerologies).
- the “downlinkChannelBW-PerSCS-List” includes the information element “SCS-SpecificCarrier”.
- the “SCS-Specific Carrier” includes “offsetToCarrier”, and the user equipment 20 can set the lower limit of usable subcarriers of BWP.
- step S3 the user device 20 sets the BWP based on the parameters received from the base station device 10.
- the information element “offsetToCarrier” is included in both “SIB1” common to the cell and “ServingCellConfig” specific to the UE, which “offsetToCarrier” should be used by the user apparatus 20 when setting the BWP. Becomes unclear.
- the user device 20 ignores the “offsetToCarrier” “coin” or “offsetToCarrier” included in the “downlinkChannelBW-PerSCS-List” and the information element “DonConDon”. “OffsetToCarrier” included in “DownlinkConfigCommonSIB” is used. “DownlinkConfigCommon” or “DownlinkConfigCommonSIB” is an information element that sets parameters common to cells. “DownlinkConfigCommonSIB” is included in “SIB1”.
- offsetToCarrier when “offsetToCarrier” is included in “downlinkChannelBW-PerSCS-List”, “offsetToCarrier” included in “downlinkChannelBW-PerSCS-List” may not be applied.
- the “offsetToCarrier” notified by the “scs-SpecificCarrierList” included in the information element “DownlinkConfigCommon” or “DownlinkConfigCommonSIB” may be applicable.
- offsetToCarrier when “offsetToCarrier” is included in “downlinkChannelBW-PerSCS-List”, “offsetConnelBW-PerSCS-List” included in “offsetConnelCW-PerfconnCloneCW-PerSCS-List” is included in the information element “DowncoinfownClone” or “downsetConnelCW-PerSCS-List”.
- offsetToCarrier notified by “scs-SpecificCarrierList” may be set.
- FIG. 5 is a specification modification example (1) according to the operation example in the embodiment of the present invention.
- the user device 20 ignores the “offsetToCarrier element” included in the “downlinkChannelBW-PerSCS-List” and ignores the “offsetToCarrier element”.
- “OffsetToCarrier” included in “DownlinkConfigCommon” or “DownlinkConfigCommonSIB” is used.
- FIG. 6 is a specification change example (2) according to the operation example in the embodiment of the present invention.
- “offsetToCarrier” included in “downlinkChannelBW-PerSCyS-List” may not be applied.
- the “offsetToCarrier” notified by the “scs-SpecificCarrierList” included in the information element “DownlinkConfigCommon” or “DownlinkConfigCommonSIB” may be applicable.
- FIG. 7 is a specification modification example (3) according to the operation example in the embodiment of the present invention.
- “offsetToCarrier” when “offsetToCarrier” is included in “downlinkChannelBW-PerSCS-List”, “offsetToCarrier” in “downlinkChannelBW-PerSCS-List” contained in “downlinkChannelBW-PerSCS-List” is the information element “DonfinkDown”.
- the same value as the "offsetToCarrier" notified by the included "scs-SpecificCarrierList” may be set.
- step S4 the user device 20 communicates with the base station device 10 using the set BWP.
- the user equipment 20 can appropriately select the parameters set commonly for the cell or the parameters set individually for the UE to set the BWP and communicate with the base station apparatus 10.
- the base station device 10 and the user device 20 include a function for implementing the above-described embodiment. However, each of the base station device 10 and the user device 20 may be provided with only a part of the functions in the embodiment.
- FIG. 8 is a diagram showing an example of a functional configuration of the base station device 10.
- the base station device 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. 8 is merely an example. As long as the operation according to the embodiment of the present invention can be executed, the function categories and the names of the function units may be any names.
- the transmitting unit 110 includes a function of generating a signal to be transmitted to the user device 20 side and wirelessly transmitting the signal.
- the reception unit 120 includes a function of receiving various signals transmitted from the user device 20 and acquiring, for example, information of 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 apparatus 20.
- the setting unit 130 stores preset setting information and various setting information to be transmitted to the user device 20 in the storage device, and reads it from the storage device as necessary.
- the content of the setting information is, for example, the communication setting related to the cell of the user device 20, the communication setting related to BWP, and the like.
- the control unit 140 performs the process related to the communication setting related to the cell or the BWP of the user device 20, as described in the embodiment.
- the functional unit related to signal transmission in the control unit 140 may be included in the transmission unit 110, and the functional unit related to signal reception in the control unit 140 may be included in the reception unit 120.
- FIG. 9 is a diagram illustrating an example of a 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. 9 is merely an example. As long as the operation according to the embodiment of the present invention can be executed, the function categories and the names of the function units may be any names.
- the transmitter 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 signals of higher layers from the received physical layer signals. Further, the receiving section 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.
- the transmission unit 210 performs P2CH communication to other user apparatuses 20 by using a PSCCH (Physical Sidelink Control Channel), a PSSCH (Physical Sidelink Shared Channel), a PSDCH (Physical Sidelink Discovery Channel), and a PSBCH (Physical Sidelink Broadcast Channel). ) Etc., and the receiving part 120 receives PSCCH, PSSCH, PSDCH, PSBCH, etc. from the other user apparatus 20.
- PSCCH Physical Sidelink Control Channel
- PSSCH Physical Sidelink Shared Channel
- PSDCH Physical Sidelink Discovery Channel
- PSBCH Physical Sidelink Broadcast Channel
- the setting unit 230 stores various setting information received from the base station device 10 or the user device 20 by the receiving unit 220 in a storage device, and reads from the storage device as necessary.
- the setting unit 230 also stores preset setting information.
- the contents of the setting information are, for example, communication settings related to cells, communication settings related to BWP, and the like.
- control unit 240 controls the communication to which the BWP is applied based on the communication setting acquired from the base station device 10.
- the functional unit related to signal transmission in the control unit 240 may be included in the transmission unit 210, and the functional 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 physically or logically coupled, or directly or indirectly (for example, two or more devices physically or logically separated). , Wired, wireless, etc.) and may be implemented using these multiple devices.
- the functional block may be implemented by combining the one device or the plurality of devices with software.
- Functions include judgment, decision, judgment, calculation, calculation, processing, derivation, investigation, search, confirmation, reception, transmission, output, access, resolution, selection, selection, establishment, comparison, assumption, expectation, observation, Broadcasting, notifying, communicating, forwarding, configuring, reconfiguring, allocating, mapping, assigning, etc., but not limited to these.
- I can't.
- functional blocks (components) that function transmission are called a transmitting unit and a transmitter.
- the implementation method is not particularly limited.
- the base station device 10, the user device 20, and the like according to the embodiment of the present disclosure may function as a computer that performs the process of the wireless communication method of the present disclosure.
- FIG. 10 is a diagram illustrating an example of a hardware configuration of the base station device 10 and the user device 20 according to the embodiment of the present disclosure.
- the base station device 10 and the user device 20 described above 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 “apparatus” can be read as a circuit, device, unit, or the like.
- the hardware configurations of the base station device 10 and the user device 20 may be configured to include one or a plurality of each device illustrated in the figure, or may be configured not to include some devices.
- Each function in the base station device 10 and the user device 20 causes a predetermined software (program) to be loaded onto hardware such as the processor 1001, the storage device 1002, etc., so that the processor 1001 performs an arithmetic operation and communication by the communication device 1004. It is realized by controlling or at least one of reading and writing of data in the storage device 1002 and the auxiliary storage device 1003.
- the processor 1001 operates an operating system to control the entire computer, for example.
- the processor 1001 may be configured by a central processing unit (CPU) including an interface with peripheral devices, a control device, a calculation device, a register, and the like.
- CPU central processing unit
- the control unit 140, the control unit 240, and the like described above 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 to the storage device 1002, and executes various processes according to these.
- a program that causes a computer to execute at least part of the operations described in the above-described embodiments is used.
- the control unit 140 of the base station device 10 illustrated in FIG. 8 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 illustrated in FIG. 9 may be realized by a control program stored in the storage device 1002 and operated by the processor 1001.
- the processor 1001 may be implemented by one or more chips.
- the program may be transmitted from the network via an electric communication line.
- the storage device 1002 is a computer-readable recording medium, and is, for example, at least one of ROM (Read Only Memory), EPROM (Erasable Programmable ROM), EEPROM (ElectricallyErasable Programmable ROM), RAM (Random Access Memory), and the like. It may be configured.
- the storage device 1002 may be called a register, a cache, a main memory (main storage device), or the like.
- the storage device 1002 can store an executable program (program code), a software module, or the like for implementing 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 disc such as a CD-ROM (Compact Disc ROM), a hard disk drive, a flexible disc, a magneto-optical disc (for example, a compact disc, a digital versatile disc, a Blu disc). -Ray disk), smart card, flash memory (eg card, stick, key drive), floppy disk, magnetic strip, etc.
- the above-described storage medium may be, for example, a database including at least one of the storage device 1002 and the auxiliary storage device 1003, a server, or another appropriate medium.
- the communication device 1004 is hardware (transmission/reception device) for performing communication between computers via at least one of a wired network and a wireless network, and is also called, for example, a network device, a network controller, a network card, a communication module, or the like.
- the communication device 1004 includes, for example, a high frequency switch, a duplexer, a filter, a frequency synthesizer, etc. in order to realize at least one of a frequency division duplex (FDD: Frequency Division Duplex) and a time division duplex (TDD: Time Division Duplex). May be composed of
- FDD Frequency Division Duplex
- TDD Time Division Duplex
- the transmitter/receiver may be implemented by physically or logically separating the transmitter and the receiver.
- the input device 1005 is an input device (eg, keyboard, mouse, microphone, switch, button, sensor, etc.) that receives an input from the outside.
- the output device 1006 is an output device (for example, a display, a speaker, an LED lamp, etc.) that outputs to the outside.
- the input device 1005 and the output device 1006 may be integrated (for example, a touch panel).
- each device such as the processor 1001 and the storage device 1002 is connected by a bus 1007 for communicating information.
- the bus 1007 may be configured using a single bus, or may be configured using different buses 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 implement part or all of each functional block. For example, the 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
- a reception unit that receives information designating a BWP (Bandwidth part) from a base station device, and a predetermined cell common included in the information designating the BWP.
- a communication unit that communicates with the base station device by using the set BWP, by determining a parameter to be applied from the above parameters and a predetermined parameter for each user device, and setting the BWP.
- Parameter is information indicating the lower limit of usable subcarriers of BWP, and the user equipment is provided.
- the user apparatus 20 can appropriately select parameters set commonly for cells or parameters set individually for UEs to set BWP and communicate with the base station apparatus 10. That is, in the wireless communication system, communication to which BWP is applied can be set appropriately.
- the control unit ignores the predetermined parameter specific to the user apparatus, and the predetermined cell common included in the information designating the BWP. May be applied to the BWP settings.
- the user apparatus 20 can appropriately select a parameter set commonly for cells or a parameter set individually for each UE to set BWP and communicate with the base station apparatus 10.
- the control unit does not apply the predetermined parameter for each user apparatus included in the information specifying the BWP, but applies the predetermined parameter common to the cell included in the information specifying the BWP to the setting of the BWP. You may decide that. With this configuration, the user apparatus 20 can appropriately select a parameter set commonly for cells or a parameter set individually for each UE to set BWP and communicate with the base station apparatus 10.
- the predetermined parameter for each user device included in the information specifying the BWP and the predetermined parameter common to the cells included in the information specifying the BWP may have the same value.
- the user apparatus 20 can set the BWP regardless of whether the parameters are set commonly for the cell or individually for the UE, and can communicate with the base station apparatus 10.
- a transmission unit that transmits information specifying a BWP (Bandwidth part) to a user apparatus, a predetermined parameter common to cells included in the information specifying the BWP, and a user apparatus individual
- a control unit that determines a parameter to be applied from the predetermined parameters and sets the BWP, and a communication unit that communicates with the user device by using the set BWP, and the predetermined parameter is the use of the BWP.
- a base station apparatus is provided which is information indicating the lower limit of possible subcarriers.
- the user apparatus 20 can appropriately select parameters set commonly for cells or parameters set individually for UEs to set BWP and communicate with the base station apparatus 10. That is, in the wireless communication system, communication to which BWP is applied can be set appropriately.
- 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 the 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 using functional block diagrams for convenience of processing description, such an apparatus may be realized by hardware, software, or a combination thereof.
- the software operated by the processor included in the base station device 10 according to the embodiment of the present invention and the software operated by the processor included in the user device 20 according to the embodiment of the present invention are respectively a random access memory (RAM), a flash memory, and a read memory. It may be stored in a dedicated memory (ROM), EPROM, EEPROM, register, hard disk (HDD), removable disk, CD-ROM, database, server, or any other suitable storage medium.
- the notification of information is not limited to the mode/embodiment described in the present disclosure, and may be performed using another method.
- information is notified by physical layer signaling (for example, DCI (Downlink Control Information), UCI (Uplink Control Information)), upper layer signaling (for example, RRC (Radio Resource Control) signaling, MAC (Medium Access Control) signaling, It may be implemented by broadcast information (MIB (Master Information Block), SIB (System Information Block)), other signals, or a combination thereof, and RRC signaling may be called an RRC message, for example, RRC message. It may be a connection setup (RRC Connection Setup) message, an RRC connection reconfiguration message, or the like.
- LTE Long Term Evolution
- LTE-A Long Term Evolution-Advanced
- SUPER 3G IMT-Advanced
- 4G fourth generation mobile communication system
- 5G 5th generation mobile communication system
- FRA Full Radio Access
- NR new Radio
- W-CDMA registered trademark
- GSM registered trademark
- CDMA2000 Code Division Multiple Access 2000
- UMB Universal Mobile Broadband
- IEEE 802.11 Wi-Fi (registered trademark)
- IEEE 802.16 WiMAX (registered trademark)
- IEEE 802.20 UWB (Ultra-WideBand)
- Bluetooth registered trademark
- other systems using appropriate systems, and extensions based on these It may be applied to at least one of the next-generation systems.
- a plurality of systems may be combined and applied (for example, a combination of at least one of LTE and LTE-A and 5G).
- the specific operation that is assumed to be performed by the base station device 10 in this specification may be performed by its upper node in some cases.
- 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 it can be performed by at least one of the network nodes of (for example, but not limited to, MME or S-GW, etc.).
- the other network node may be a combination of a plurality of other network nodes (for example, MME and S-GW). Good.
- Information, signals, etc. described in the present disclosure may 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.
- Information that has been input and output may be stored in a specific location (for example, memory), or may be managed using a management table. Information that is input/output may be overwritten, updated, or added. The output information and the like may be deleted. The input information and the like may be transmitted to another device.
- the determination in the present disclosure may be performed by a value (0 or 1) represented by 1 bit, may be performed by a Boolean value (Boolean: true or false), and may be performed by comparing numerical values (for example, , Comparison with a predetermined value).
- software, instructions, information, etc. may be transmitted and received via a transmission medium.
- the software uses a wired technology (coaxial cable, optical fiber cable, twisted pair, digital subscriber line (DSL: Digital Subscriber Line), etc.) and/or wireless technology (infrared, microwave, etc.) websites, When sent from a server, or other remote source, at least one of these wired and wireless technologies is included within the definition of transmission medium.
- wired technology coaxial cable, optical fiber cable, twisted pair, digital subscriber line (DSL: Digital Subscriber Line), etc.
- wireless technology infrared, microwave, etc.
- data, instructions, commands, information, signals, bits, symbols, chips, etc. that may be referred to throughout the above description include voltage, current, electromagnetic waves, magnetic fields or magnetic particles, optical fields or photons, or any of these. May be represented by a combination of
- At least one of the channel and the symbol may be a signal (signaling).
- the signal may also be a message.
- a component carrier 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 represented by using an absolute value, may be represented by using a relative value from a predetermined value, or by using other corresponding information. May be represented.
- the radio resources may be those indicated by the index.
- base station Base Station
- radio base station base station
- base station device fixed station
- NodeB NodeB
- eNodeB eNodeB
- GNB nodeB
- access point access point
- transmission point transmission point
- reception point transmission/reception point
- cell cell
- cell group carrier
- component carrier component carrier
- a base station can accommodate one or more (eg, 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 defined by a base station subsystem (eg, indoor small base station (RRH: It is also possible to provide communication services by Remote Radio Head).
- RRH indoor small base station
- the term "cell” or “sector” means a part or the whole coverage area of at least one of the base station and the base station subsystem that perform communication services in this coverage. Refers to.
- MS Mobile Station
- UE User Equipment
- Mobile stations are defined by those skilled in the art as subscriber stations, mobile units, subscriber units, wireless units, remote units, mobile devices, wireless devices, wireless communication devices, remote devices, mobile subscriber stations, access terminals, mobile terminals, wireless. It may also be referred to as a terminal, remote terminal, handset, user agent, mobile client, client, or some other suitable term.
- At least one of the base station and the mobile station may be called a transmission device, a reception device, a communication device, or the like.
- the base station and the mobile station may be a device mounted on the mobile body, the mobile body itself, or the like.
- the moving body may be a vehicle (eg, car, airplane, etc.), an unmanned moving body (eg, drone, self-driving car, etc.), or a robot (manned or unmanned).
- At least one of the base station and the mobile station also includes a device that does not necessarily move during communication operation.
- at least one of the base station and the mobile station may be an IoT (Internet of Things) device such as a sensor.
- IoT Internet of Things
- the base station in the present disclosure may be replaced by the user terminal.
- the communication between the base station and the user terminal is replaced with 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
- the user apparatus 20 may have the function of the base station apparatus 10 described above.
- the words such as “up” and “down” may be replaced with the words corresponding to the terminal-to-terminal communication (for example, “side”).
- the uplink channel and the downlink channel may be replaced with the side channel.
- the user terminal in the present disclosure may be replaced by the base station.
- the base station may have the function of the above-mentioned user terminal.
- determining and “determining” as used in this disclosure may encompass a wide variety of actions.
- “Judgment” and “decision” are, for example, judgment, calculating, computing, processing, deriving, investigating, and looking up, search, inquiry. (Eg, searching in a table, database, or another data structure), considering ascertaining as “judging” or “deciding”, and the like.
- “decision” and “decision” include receiving (eg, receiving information), transmitting (eg, transmitting information), input (input), output (output), access (accessing) (for example, accessing data in a memory) may be regarded as “judging” or “deciding”.
- judgment and “decision” are considered to be “judgment” and “decision” when things such as resolving, selecting, choosing, selecting, establishing, and comparing are done. May be included. That is, the “judgment” and “decision” may include considering some action as “judgment” and “decision”. In addition, “determination (decision)” may be read as “assuming”, “expecting”, “considering”, and the like.
- connection means any direct or indirect connection or coupling between two or more elements, and It can include the presence of one or more intermediate elements between two elements that are “connected” or “coupled.”
- the connections or connections between the elements may be physical, logical, or a combination thereof.
- connection may be read as “access”.
- two elements are in the radio frequency domain, with at least one of one or more wires, cables and printed electrical connections, and as some non-limiting and non-exhaustive examples. , Can be considered to be “connected” or “coupled” to each other, such as with electromagnetic energy having wavelengths in the microwave and light (both visible and invisible) regions.
- the reference signal may be abbreviated as RS (Reference Signal), or may be referred to as a pilot (Pilot) depending on the applied standard.
- RS Reference Signal
- Pilot pilot
- the phrase “based on” does not mean “based only on,” unless expressly specified otherwise. In other words, the phrase “based on” means both "based only on” and “based at least on.”
- references to elements using designations such as “first”, “second”, etc. used in this disclosure does not generally limit the amount or order of those elements. These designations may be used in this disclosure as a convenient way to distinguish between two or more elements. Thus, references to the first and second elements do not mean that only two elements may be employed, or that the first element must precede the second element in any way.
- a radio frame may be composed of one or more frames in the time domain. Each frame or frames in the time domain may be referred to as a subframe. A subframe may also be composed of one or more slots in the time domain. A subframe may have a fixed time length (eg, 1 ms) that does not depend on numerology.
- Numerology may be a communication parameter applied to at least one of transmission and reception of a certain 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, radio frame configuration, transceiver At least one of specific filtering processing performed in the frequency domain and specific windowing processing performed by the transceiver in the time domain may be shown.
- a slot may be composed of one or more symbols (OFDM (Orthogonal Frequency Division Multiplexing) symbol, SC-FDMA (Single Carrier Frequency Division Multiple Access) symbol, etc.) in the time domain.
- a slot may be a time unit based on numerology.
- a slot may include multiple minislots. Each minislot may be composed of one or more symbols in the time domain. The minislot may also be called a subslot. Minislots may be configured with fewer symbols than slots.
- a PDSCH (or PUSCH) transmitted in a time unit larger than a 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.
- Radio frame, subframe, slot, minislot, and symbol all represent the time unit for signal transmission. Radio frames, subframes, slots, minislots, and symbols may have different names corresponding to them.
- 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 means, for example, a minimum time unit of scheduling in wireless communication.
- the base station performs scheduling to allocate radio resources (frequency bandwidth that can be used in each user device 20, transmission power, etc.) to each user device 20 in units of TTI.
- the definition of TTI is not limited to this.
- the TTI may be a transmission time unit of a channel-encoded data packet (transport block), code block, codeword, or the like, or may be a processing unit of scheduling, link adaptation, or the like.
- the time interval for example, the number of symbols
- the transport block, code block, codeword, etc. may be shorter than the TTI.
- one slot or one minislot is called a TTI
- one or more TTIs may be the minimum time unit for scheduling.
- the number of slots (the number of mini-slots) forming the minimum time unit of the scheduling may be controlled.
- a TTI having a time length of 1 ms may be called 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.
- a TTI shorter than the normal TTI may be called a shortened TTI, a short TTI, a partial TTI (partial or fractional TTI), a shortened subframe, a short subframe, a minislot, a subslot, a slot, and the like.
- a long TTI (eg, normal TTI, subframe, etc.) may be read as a TTI having a time length exceeding 1 ms, and a short TTI (eg, 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.
- a resource block 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 included in the RB may be the same regardless of the numerology, and may be 12, for example.
- the number of subcarriers included in the RB may be determined based on numerology.
- the time domain of the RB may include one or more symbols, and may be 1 slot, 1 minislot, 1 subframe, or 1 TTI in length.
- One TTI, one subframe, etc. may be configured with one or a plurality of resource blocks.
- one or more RBs include a physical resource block (PRB: Physical RB), a subcarrier group (SCG: Sub-Carrier Group), a resource element group (REG: Resource Element Group), a PRB pair, an RB pair, etc. May be called.
- PRB Physical resource block
- SCG Sub-Carrier Group
- REG Resource Element Group
- a resource block may be composed of one or more resource elements (RE: Resource Element).
- RE Resource Element
- 1 RE may be a radio resource area of 1 subcarrier and 1 symbol.
- a bandwidth part (may also be called a partial bandwidth) may represent a subset of consecutive common RBs (common resource blocks) for a certain numerology in a certain carrier.
- the common RB may be specified by the index of the RB based on the common reference point of the carrier.
- PRBs may be defined in a BWP and numbered within the BWP.
- BWP may include BWP for UL (UL BWP) and BWP for DL (DL BWP).
- BWP for UL
- DL BWP DL BWP
- one or more BWPs may be set in one carrier.
- At least one of the configured BWPs may be active, and the UE does not have to expect to send and receive a given signal/channel outside the active BWP.
- “cell”, “carrier”, and the like in the present disclosure may be read as “BWP”.
- the structure of the wireless frame, subframe, slot, minislot, symbol, etc. described above is just an example.
- the number of subframes included in a radio frame, the number of slots per subframe or radio frame, the number of minislots included in a slot, the number of symbols and RBs included in a slot or minislot, and included in RBs The number of subcarriers, the number of symbols in the TTI, the symbol length, the cyclic prefix (CP: Cyclic Prefix) length, and the like can be variously changed.
- the term “A and B are different” may mean “A and B are different from each other”.
- the term may mean that “A and B are different from C”.
- the terms “remove”, “coupled” and the like may be construed similarly as “different”.
- the notification of the predetermined information (for example, the notification of “being X”) is not limited to the explicit notification, and is performed implicitly (for example, the notification of the predetermined information is not performed). Good.
- the transmission unit 210 and the reception unit 220 are examples of the communication unit.
- the transmission unit 110 and the reception unit 120 are an example of a communication unit.
- SIB1 or ServingCellConfig is an example of information designating BWP.
- offsetToCarrier is an example of a predetermined parameter.
- 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8は、基地局装置10の機能構成の一例を示す図である。図8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8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9は、ユーザ装置20の機能構成の一例を示す図である。図9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9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8及び図9)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、BWP(Bandwidth part)を指定する情報を基地局装置から受信する受信部と、前記BWPを指定する情報に含まれるセル共通の所定のパラメータ及びユーザ装置個別の所定のパラメータから適用するパラメータを決定してBWPを設定する制御部と、前記設定されたBWPを使用して前記基地局装置と通信する通信部を有し、前記所定のパラメータは、BWPの使用可能なサブキャリアの下限を示す情報であ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 (5)
- BWP(Bandwidth part)を指定する情報を基地局装置から受信する受信部と、
前記BWPを指定する情報に含まれるセル共通の所定のパラメータ及びユーザ装置個別の所定のパラメータから適用するパラメータを決定してBWPを設定する制御部と、
前記設定されたBWPを使用して前記基地局装置と通信する通信部を有し、
前記所定のパラメータは、BWPの使用可能なサブキャリアの下限を示す情報であるユーザ装置。 - 前記制御部は、前記BWPを指定する情報がユーザ装置個別の前記所定のパラメータを含む場合にユーザ装置個別の前記所定のパラメータを無視し、前記BWPを指定する情報に含まれるセル共通の前記所定のパラメータをBWPの設定に適用することを決定する請求項1記載のユーザ装置。
- 前記制御部は、前記BWPを指定する情報に含まれるユーザ装置個別の前記所定のパラメータを適用せず、前記BWPを指定する情報に含まれるセル共通の前記所定のパラメータをBWPの設定に適用することを決定する請求項1記載のユーザ装置。
- 前記BWPを指定する情報に含まれるユーザ装置個別の前記所定のパラメータと、前記BWPを指定する情報に含まれるセル共通の前記所定のパラメータとは同一の値を有する請求項1記載のユーザ装置。
- BWP(Bandwidth part)を指定する情報をユーザ装置に送信する送信部と、
前記BWPを指定する情報に含まれるセル共通の所定のパラメータ及びユーザ装置個別の所定のパラメータから適用するパラメータを決定してBWPを設定する制御部と、
前記設定されたBWPを使用して前記ユーザ装置と通信する通信部を有し、
前記所定のパラメータは、BWPの使用可能なサブキャリアの下限を示す情報である基地局装置。
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3GPP TS 38.300, December 2018 (2018-12-01) |
See also references of EP3930393A4 |
ZTE: "Maintenance for UL power control", 3GPP TSG RAN WG1 #94 RL-180 8200, 24 August 2018 (2018-08-24), XP051515585, Retrieved from the Internet <URL:http://www.3gpp.org/ftp/tsg_ran/WG1_RL1/TSGR1_94/Docs/R1-1808200.zip> [retrieved on 20190402] * |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN114339615A (zh) * | 2020-09-30 | 2022-04-12 | 大唐移动通信设备有限公司 | Bwp的配置方法、装置、网络侧设备及终端 |
CN114339615B (zh) * | 2020-09-30 | 2023-10-20 | 大唐移动通信设备有限公司 | Bwp的配置方法、装置、网络侧设备及终端 |
Also Published As
Publication number | Publication date |
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SG11202107619XA (en) | 2021-08-30 |
BR112021013910A2 (pt) | 2021-09-21 |
EP3930393A1 (en) | 2021-12-29 |
US20220110121A1 (en) | 2022-04-07 |
JP7201786B2 (ja) | 2023-01-10 |
CN113455068A (zh) | 2021-09-28 |
CN113455068B (zh) | 2024-04-09 |
IL284493A (en) | 2021-08-31 |
EP3930393A4 (en) | 2022-10-12 |
JPWO2020170445A1 (ja) | 2021-12-16 |
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