WO2022208636A1 - 端末及び通信方法 - Google Patents
端末及び通信方法 Download PDFInfo
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- WO2022208636A1 WO2022208636A1 PCT/JP2021/013425 JP2021013425W WO2022208636A1 WO 2022208636 A1 WO2022208636 A1 WO 2022208636A1 JP 2021013425 W JP2021013425 W JP 2021013425W WO 2022208636 A1 WO2022208636 A1 WO 2022208636A1
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- Prior art keywords
- frequency hopping
- pusch
- base station
- puschs
- slot
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/20—Control channels or signalling for resource management
- H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
- H04W72/232—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal the control data signalling from the physical layer, e.g. DCI signalling
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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
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0044—Arrangements for allocating sub-channels of the transmission path allocation of payload
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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
- H04L5/0092—Indication of how the channel is divided
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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
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/12—Wireless traffic scheduling
- H04W72/1263—Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows
- H04W72/1268—Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows of uplink data flows
Definitions
- the present invention relates to a terminal and communication method in a wireless communication system.
- NR New Radio
- LTE Long Term Evolution
- a single DCI Downlink Control Information
- PDSCHs Physical Downlink Shared Channels
- PUSCHs Physical Uplink Shared Channel
- the present invention has been made in view of the above points, and can apply frequency hopping when multiple channels are scheduled in a wireless communication system.
- frequency hopping can be applied when multiple channels are scheduled in a wireless communication system.
- FIG. 1 is a diagram showing a configuration example of a radio communication system according to an embodiment of the present invention
- FIG. It is a figure which shows the example of the frequency range in embodiment of this invention.
- 4 is a flow chart for explaining an example of transmission in the embodiment of the invention; It is a figure which shows the example (1) of the frequency hopping in embodiment of this invention. It is a figure which shows the example (2) of the frequency hopping in embodiment of this invention.
- FIG. 4 is a diagram showing an example (3) of frequency hopping according to the embodiment of the present invention; It is a figure which shows the example (4) of frequency hopping in embodiment of this invention.
- 2 is a diagram showing an example of the functional configuration of terminal 20 according to the embodiment of the present invention;
- FIG. 2 is a diagram showing an example of hardware configuration of base station 10 or terminal 20 according to an embodiment of the present invention;
- LTE Long Term Evolution
- LTE-Advanced LTE-Advanced and subsequent systems (eg, NR) unless otherwise specified.
- SS Synchronization signal
- PSS Primary SS
- SSS Secondary SS
- PBCH Physical broadcast channel
- PRACH Physical random access channel
- PDCCH Physical Downlink Control Channel
- PDSCH Physical Downlink Shared Channel
- PUCCH Physical Uplink Control Channel
- PUSCH Physical Uplink Shared Channel
- the duplex system may be a TDD (Time Division Duplex) system, an FDD (Frequency Division Duplex) system, or other (for example, Flexible Duplex etc.) method may be used.
- TDD Time Division Duplex
- FDD Frequency Division Duplex
- "configuring" wireless parameters and the like may mean that predetermined values are preset (Pre-configure), and the base station 10 or A wireless parameter notified from the terminal 20 may be set.
- the base station 10 transmits control signals or data to the terminal 20 on DL (Downlink) and receives control signals or data from the terminal 20 on UL (Uplink). Both the base station 10 and the terminal 20 can perform beamforming to transmit and receive signals. Also, both the base station 10 and the terminal 20 can apply MIMO (Multiple Input Multiple Output) communication to DL or UL. Also, both the base station 10 and the terminal 20 may communicate via a secondary cell (SCell: Secondary Cell) and a primary cell (PCell: Primary Cell) by CA (Carrier Aggregation). Furthermore, the terminal 20 may communicate via a primary cell of the base station 10 and a primary secondary cell group cell (PSCell: Primary SCG Cell) of another base station 10 by DC (Dual Connectivity).
- SCell Secondary Cell
- PCell Primary Cell
- DC Direct Connectivity
- frequency hopping is supported in resource allocation type 1 when a single PUSCH is scheduled by DCI format 0_1 or DCI format 0_2.
- enabling or disabling frequency hopping is determined based on the frequency hopping field of the DCI.
- the above intra-slot hopping may divide the PUSCH into two halves, the first hop and the second hop. If the PUSCH has an odd number of symbols, the second hop may be one more symbol.
- the first hop and the second hop may be alternately set for each slot. In the hopping between repetitions, the first hop and the second hop may be alternately set for each repetition transmission.
- PUSCH frequency hopping may not be supported.
- no additional frequency hopping parameters may be configured. That is, existing frequency hopping parameters, such as FrequencyHopping, frequencyHoppingDCI-0-1, frequencyHoppingDCI-0-2, may be used to direct frequency hopping for multiple PUSCH scheduling and single PUSCH scheduling.
- existing frequency hopping parameters such as FrequencyHopping, frequencyHoppingDCI-0-1, frequencyHoppingDCI-0-2, may be used to direct frequency hopping for multiple PUSCH scheduling and single PUSCH scheduling.
- the inter-slot frequency is determined by the frequency hopping parameter. Either hopping or intra-slot frequency hopping may be configured. If inter-slot frequency hopping is configured, inter-slot frequency hopping may be configured when multiple PUSCHs are scheduled in multiple slots, and frequency hopping may not be applied when PUSCHs are scheduled in a single slot. When intra-slot frequency hopping is configured, intra-slot frequency hopping is applied to one or more PUSCHs in one slot, and when multiple PUSCHs are scheduled in one slot, each hop includes one or more PUSCHs. It's okay.
- either inter-slot frequency hopping or intra-slot frequency hopping may be configured by the DCI format that schedules multiple PUSCHs.
- frequency hopping may not be applied for multiple PUSCH scheduling. If the frequency hopping mode is not supported for single PUSCH scheduling, frequency hopping may not be applied for single PUSCH scheduling.
- inter-PUSCH frequency hopping and/or intra-PUSCH frequency hopping and/or inter-slot frequency hopping and/or inter-repetition frequency hopping are defined by the frequency hopping parameters It may be settable as a setting candidate value. If inter-PUSCH frequency hopping is configured and PUSCH is single, frequency hopping may not be applied. If frequency hopping between repetitions is configured and multiple PUSCHs without repetition are scheduled, frequency hopping may not be applied.
- inter-PUSCH frequency hopping and/or intra-PUSCH frequency hopping and/or inter-slot frequency hopping and/or intra-slot frequency hopping is performed.
- the indicated frequency hopping parameter configuration candidate values may be configured according to the DCI format that schedules multiple PUSCHs.
- FIG. 5 is a diagram showing an example (2) of frequency hopping according to the embodiment of the present invention.
- FIG. 5 shows an example of intra-slot frequency hopping. As shown in FIG. 5, hops are set alternately in half-slot units in the frequency range.
- FIG. 6 is a diagram showing an example (3) of frequency hopping according to the embodiment of the present invention.
- FIG. 6 shows an example of inter-PUSCH frequency hopping. As shown in FIG. 6, hops are alternately set in PUSCH units in the frequency range.
- FIG. 7 is a diagram showing an example (4) of frequency hopping according to the embodiment of the present invention.
- FIG. 7 shows an example of intra-PUSCH frequency hopping. As shown in FIG. 7, hops are alternately set in half PUSCH units in the frequency range.
- Option 2-2-1 An existing frequency hopping scheme may be applied to multiple PUSCH scheduling. Inter-slot frequency hopping and intra-slot frequency hopping may be configurable by Multi-Pusch-Frequency Hopping.
- Enhanced frequency hopping scheme may be applied to multiple PUSCH scheduling.
- Inter-PUSCH frequency hopping and/or intra-PUSCH frequency hopping may be applied to scheduling multiple PUSCHs. Neither inter-slot frequency hopping nor intra-slot frequency hopping may be supported for multiple PUSCH scheduling, either one may be supported, or both may be supported.
- Multi-Pusch-Frequency Hopping may configure inter-PUSCH frequency hopping and/or intra-PUSCH frequency hopping and/or inter-slot frequency hopping and/or intra-slot frequency hopping.
- the RB allocation for each hop may be similar to Rel-16 inter-slot frequency hopping.
- the RB allocation for each hop may be similar to intra-slot frequency hopping in Release 16. However, this excludes the case where multiple PUSCHs are scheduled by DCI and multiple PUSCHs are arranged discontinuously within one slot.
- the interval to be subjected to frequency hopping is from the start symbol of the first PUSCH to the end symbol of the last PUSCH.
- Equation 2 the first hop has no offset and the second hop has an offset.
- the number of symbols for the first hop and the number of symbols for the second hop are shown in Equation 3 and Equation 4 below, respectively.
- N PUSCH,S symb in Equations 3 and 4 is the length of PUSCH.
- Which option is used in the above embodiment may be set by higher layer parameters, may be reported as UE capabilities from the terminal 20, may be defined in specifications, or may be defined in the specifications. It may be determined based on parameters and UE capabilities.
- a UE capability indicating whether or not to support frequency hopping for multiple PUSCH scheduling may be defined. Note that a UE capability may be defined that indicates whether or not an enhanced frequency hopping scheme for multiple PUSCH scheduling is supported. A UE capability may be defined that indicates whether or not to support a new RRC parameter signaling frequency hopping mode for multiple PUSCH scheduling.
- the terminal 20 can apply frequency hopping in a highly flexible manner when multiple PUSCHs are scheduled.
- frequency hopping can be applied when multiple channels are scheduled.
- the base stations 10 and terminals 20 contain the functionality to implement the embodiments described above. However, each of the base station 10 and terminal 20 may have only part of the functions in the embodiment.
- FIG. 8 is a diagram showing an example of the functional configuration of base station 10 according to the embodiment of the present invention.
- the base station 10 has a transmitter 110 , a receiver 120 , a setter 130 and a controller 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 functional division and the names of the functional units may be arbitrary.
- the transmission unit 110 includes a function of generating a signal to be transmitted to the terminal 20 side and wirelessly transmitting the signal.
- the transmitter 110 also transmits inter-network-node messages to other network nodes.
- the receiving unit 120 includes a function of receiving various signals transmitted from the terminal 20 and acquiring, for example, higher layer information from the received signals. Also, the transmitting unit 110 has a function of transmitting NR-PSS, NR-SSS, NR-PBCH, DL/UL control signals, etc. to the terminal 20 .
- the receiving unit 120 also receives inter-network node messages from other network nodes.
- the setting unit 130 stores preset setting information and various setting information to be transmitted to the terminal 20 .
- the content of the setting information is, for example, information related to measurement settings.
- the control unit 140 performs control related to setting of frequency hopping, as described in the embodiment. Also, the control unit 140 executes scheduling.
- a functional unit related to signal transmission in control unit 140 may be included in transmitting unit 110
- a functional unit related to signal reception in control unit 140 may be included in receiving unit 120 .
- FIG. 9 is a diagram showing an example of the functional configuration of terminal 20 according to the embodiment of the present invention.
- the terminal 20 has a transmitting section 210, a receiving section 220, a setting section 230, and a control section 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 functional division and the names of the functional units may be arbitrary.
- 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 higher layer signal from the received physical layer signal. Also, the receiving unit 220 has a function of receiving NR-PSS, NR-SSS, NR-PBCH, DL/UL/SL control signals and the like transmitted from the base station 10 .
- the transmission unit 210 as D2D communication, to the other terminal 20, PSCCH (Physical Sidelink Control Channel), PSSCH (Physical Sidelink Shared Channel), PSDCH (Physical Sidelink Discovery Channel), PSBCH (Physical Sidelink Broadcast Channel) etc.
- 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 10 by the receiving unit 220 .
- the setting unit 230 also stores preset setting information.
- the content of the setting information is, for example, information related to measurement settings.
- the control unit 240 performs control related to setting of frequency hopping, as described in the embodiment.
- a functional unit related to signal transmission in control unit 240 may be included in transmitting unit 210
- a functional unit related to signal reception in control unit 240 may be included in receiving unit 220 .
- each functional block may be implemented using one device that is physically or logically coupled, or directly or indirectly using two or more devices that are physically or logically separated (e.g. , wired, wireless, etc.) and may be implemented using these multiple devices.
- a functional block may be implemented by combining software in the one device or the plurality of devices.
- Functions include judging, determining, determining, calculating, calculating, processing, deriving, investigating, searching, checking, receiving, transmitting, outputting, accessing, resolving, selecting, choosing, establishing, comparing, assuming, expecting, assuming, Broadcasting, notifying, communicating, forwarding, configuring, reconfiguring, allocating, mapping, assigning, etc. can't
- a functional block (component) that performs transmission is called a transmitting unit or transmitter.
- the implementation method is not particularly limited.
- the base station 10, the terminal 20, etc. may function as a computer that performs processing of the wireless communication method of the present disclosure.
- FIG. 10 is a diagram illustrating an example of hardware configurations of the base station 10 and the terminal 20 according to an embodiment of the present disclosure.
- the base station 10 and terminal 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. good too.
- the term "apparatus” can be read as a circuit, device, unit, or the like.
- the hardware configuration of the base station 10 and terminal 20 may be configured to include one or more of each device shown in the figure, or may be configured without some devices.
- Each function of the base station 10 and the terminal 20 is performed by the processor 1001 performing calculations and controlling communication by the communication device 1004 by loading predetermined software (programs) onto hardware such as the processor 1001 and the storage device 1002. or by controlling at least one of data reading and writing in the storage device 1002 and the auxiliary storage device 1003 .
- the processor 1001 for example, operates an operating system and controls the entire computer.
- the processor 1001 may be configured with a central processing unit (CPU) including an interface with peripheral devices, a control device, an arithmetic device, registers, and the like.
- CPU central processing unit
- the control unit 140 , the control unit 240 and the like described above may be implemented by the processor 1001 .
- the processor 1001 reads programs (program codes), software modules, data, etc. 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 them.
- programs program codes
- software modules software modules
- data etc.
- the program a program that causes a computer to execute at least part of the operations described in the above embodiments is used.
- control unit 140 of base station 10 shown in FIG. 8 may be implemented by a control program stored in storage device 1002 and operated by processor 1001 .
- the control unit 240 of the terminal 20 shown in FIG. 9 may be implemented by a control program stored in the storage device 1002 and operated by the processor 1001 .
- FIG. Processor 1001 may be implemented by one or more chips. Note that the program may be transmitted from a network via an electric communication line.
- the storage device 1002 is a computer-readable recording medium, for example, ROM (Read Only Memory), EPROM (Erasable Programmable ROM), EEPROM (Electrically Erasable Programmable ROM), RAM (Random Access Memory), etc. may be configured.
- the storage device 1002 may also be called a register, cache, main memory (main storage device), or the like.
- the storage device 1002 can store executable programs (program code), software modules, etc. for implementing a communication method according to an embodiment of the present disclosure.
- the auxiliary storage device 1003 is a computer-readable recording medium, for example, an optical disk such as a CD-ROM (Compact Disc ROM), a hard disk drive, a flexible disk, a magneto-optical disk (for example, a compact disk, a digital versatile disk, a Blu -ray disk), smart card, flash memory (eg, card, stick, key drive), floppy disk, magnetic strip, and/or the like.
- the storage medium described above may be, for example, a database, server, or other suitable medium including at least one of storage device 1002 and secondary storage device 1003 .
- the communication device 1004 is hardware (transmitting/receiving device) for communicating between computers via at least one of a wired network and a wireless network, and is also called a network device, a network controller, a network card, a communication module, or the like.
- the communication device 1004 includes a high-frequency switch, a duplexer, a filter, a frequency synthesizer, etc., in order to realize at least one of, for example, frequency division duplex (FDD) and time division duplex (TDD).
- FDD frequency division duplex
- TDD time division duplex
- the transceiver may be physically or logically separate implementations for the transmitter and receiver.
- the input device 1005 is an input device (for example, keyboard, mouse, microphone, switch, button, sensor, etc.) that receives input from the outside.
- the output device 1006 is an output device (for example, display, speaker, LED lamp, etc.) that outputs to the outside. Note that 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 between devices.
- the base station 10 and the terminal 20 include hardware such as microprocessors, digital signal processors (DSPs), ASICs (Application Specific Integrated Circuits), PLDs (Programmable Logic Devices), and FPGAs (Field Programmable Gate Arrays). , and part or all of each functional block may be implemented by the hardware.
- processor 1001 may be implemented using at least one of these pieces of hardware.
- a receiving unit that receives parameters related to DCI (Downlink Control Information) and frequency hopping for scheduling a plurality of PUSCHs (Physical Uplink Shared Channels) from a base station and a transmitting unit that applies frequency hopping to the plurality of PUSCHs based on the parameters and transmits the PUSCHs to the base station.
- DCI Downlink Control Information
- PUSCHs Physical Uplink Shared Channels
- terminal 20 can apply frequency hopping in a highly flexible manner when multiple PUSCHs are scheduled. That is, frequency hopping can be applied when multiple channels are scheduled in a wireless communication system.
- the transmission unit may apply inter-PUSCH frequency hopping, with PUSCH as a hop unit, based on the parameters.
- the terminal 20 can apply frequency hopping in a highly flexible manner when multiple PUSCHs are scheduled.
- the transmitting unit based on the parameters, sets the first hop to an integer part half the symbol length of the PUSCH, and sets the second hop to the number of symbols obtained by subtracting the number of symbols of the first hop from the number of symbols of PUSCH.
- Intra frequency hopping may be applied. With this configuration, the terminal 20 can apply frequency hopping in a highly flexible manner when multiple PUSCHs are scheduled.
- the transmitting unit may apply intra-slot frequency hopping in which a plurality of the PUSCHs are included in one hop based on the parameters.
- the terminal 20 can apply frequency hopping in a highly flexible manner when multiple PUSCHs are scheduled.
- the transmitting unit converts the interval to be frequency hopped from the start symbol of the first PUSCH to the end symbol of the last PUSCH.
- Intra-slot frequency hopping may be applied. With this configuration, the terminal 20 can apply frequency hopping in a highly flexible manner when multiple PUSCHs are scheduled.
- a reception procedure for receiving parameters related to DCI (Downlink Control Information) and frequency hopping for scheduling a plurality of PUSCH (Physical Uplink Shared Channel) from the base station, and based on the parameters and a transmission procedure for applying frequency hopping to the plurality of PUSCHs and transmitting the PUSCHs to the base station.
- DCI Downlink Control Information
- PUSCH Physical Uplink Shared Channel
- terminal 20 can apply frequency hopping in a highly flexible manner when multiple PUSCHs are scheduled. That is, frequency hopping can be applied when multiple channels are scheduled in a wireless communication system.
- the operations of a plurality of functional units may be physically performed by one component, or the operations 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 10 and the terminal 20 have been described using functional block diagrams for convenience of explanation of processing, such devices may be implemented in hardware, software, or a combination thereof.
- the software operated by the processor of the base station 10 according to the embodiment of the present invention and the software operated by the processor of the terminal 20 according to the embodiment of the present invention are stored in random access memory (RAM), flash memory, read-only memory, respectively. (ROM), EPROM, EEPROM, register, hard disk (HDD), removable disk, CD-ROM, database, server, or any other appropriate storage medium.
- notification of information is not limited to the aspects/embodiments described in the present disclosure, and may be performed using other methods.
- notification of information includes physical layer signaling (e.g., DCI (Downlink Control Information), UCI (Uplink Control Information)), higher layer signaling (e.g., 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.
- RRC signaling may also be called an RRC message, for example, RRC It may be a connection setup (RRC Connection Setup) message, an RRC connection reconfiguration 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), 5G (5th generation mobile communication system) 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) )), IEEE 802.16 (WiMAX (registered trademark)), IEEE 802.20, UWB (Ultra-WideBand), Bluetooth (registered trademark), and other suitable systems and extended It may be applied to at least one of the next generation systems. Also, a plurality of systems may be applied in combination (for example, a combination of at least one of LTE and LTE-A and 5G, etc.).
- a specific operation performed by the base station 10 in this specification may be performed by its upper node in some cases.
- various operations performed for communication with terminal 20 may be performed by base station 10 and other network nodes other than base station 10 (eg, but not limited to MME or S-GW).
- base station 10 e.g, but not limited to MME or S-GW
- the other network node may be a combination of a plurality of other network nodes (for example, MME and S-GW).
- Information, signals, etc. described in the present disclosure may be output from a higher layer (or a lower layer) to a lower layer (or a higher layer). It may be input and output via multiple network nodes.
- Input/output information may be stored in a specific location (for example, memory) or managed using a management table. Input/output information and the like can be overwritten, updated, or appended. The output information and the like may be deleted. The entered information and the like may be transmitted to another device.
- the determination in the present disclosure may be performed by a value represented by 1 bit (0 or 1), may be performed by a boolean value (Boolean: true or false), or may be performed by comparing numerical values (e.g. , comparison with a predetermined value).
- Software whether referred to as software, firmware, middleware, microcode, hardware description language or otherwise, includes instructions, instruction sets, code, code segments, program code, programs, subprograms, and software modules. , applications, software applications, software packages, routines, subroutines, objects, executables, threads of execution, procedures, functions, and the like.
- software, instructions, information, etc. may be transmitted and received via a transmission medium.
- the software uses at least one of wired technology (coaxial cable, fiber optic cable, twisted pair, digital subscriber line (DSL), etc.) and wireless technology (infrared, microwave, etc.) to website, Wired and/or wireless technologies are included within the definition of transmission medium when sent from a server or other remote source.
- wired technology coaxial cable, fiber optic cable, twisted pair, digital subscriber line (DSL), etc.
- wireless technology infrared, microwave, etc.
- data, instructions, commands, information, signals, bits, symbols, chips, etc. may refer to voltages, currents, electromagnetic waves, magnetic fields or magnetic particles, light fields or photons, or any of these. may be represented by a combination of
- the channel and/or symbols may be signaling.
- a signal may also be a message.
- a component carrier may also be called a carrier frequency, a cell, a frequency carrier, or the like.
- system and “network” used in this disclosure are used interchangeably.
- information, parameters, etc. described in the present disclosure may be expressed using absolute values, may be expressed using relative values from a predetermined value, or may be expressed using other corresponding information.
- radio resources may be indexed.
- base station BS
- radio base station base station
- base station device fixed station
- NodeB NodeB
- eNodeB eNodeB
- gNodeB gNodeB
- a base station can accommodate one or more (eg, three) cells.
- the overall coverage area of the base station can be partitioned into multiple smaller areas, each smaller area being associated with a base station subsystem (e.g., an indoor small base station (RRH:
- RRH indoor small base station
- the term "cell” or “sector” refers to part or all of the coverage area of at least one of the base stations and base station subsystems serving communication services in this coverage.
- MS Mobile Station
- UE User Equipment
- a mobile station is defined by those skilled in the art as a subscriber station, mobile unit, subscriber unit, wireless unit, remote unit, mobile device, wireless device, wireless communication device, remote device, mobile subscriber station, access terminal, mobile terminal, wireless It may also be called a terminal, remote terminal, handset, user agent, mobile client, client, or some other suitable term.
- At least one of the base station and 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 a mobile object, the mobile object itself, or the like.
- the mobile object may be a vehicle (e.g., car, airplane, etc.), an unmanned mobile object (e.g., drone, self-driving car, etc.), or a robot (manned or unmanned ).
- at least one of the base station and the mobile station includes devices that do not necessarily move during communication operations.
- at least one of the base station and mobile station may be an IoT (Internet of Things) device such as a sensor.
- IoT Internet of Things
- the base station in the present disclosure may be read as a user terminal.
- communication between a base station and a user terminal is replaced with communication between a plurality of terminals 20 (for example, D2D (Device-to-Device), V2X (Vehicle-to-Everything), etc.)
- the terminal 20 may have the functions of the base station 10 described above.
- words such as "up” and “down” may be replaced with words corresponding to inter-terminal communication (for example, "side”).
- uplink channels, downlink channels, etc. may be read as side channels.
- user terminals in the present disclosure may be read as base stations.
- the base station may have the functions that the above-described user terminal has.
- determining and “determining” used in this disclosure may encompass a wide variety of actions.
- “Judgement” and “determination” are, for example, judging, calculating, computing, processing, deriving, investigating, looking up, searching, inquiring (eg, lookup in a table, database, or other data structure), ascertaining as “judged” or “determined”, and the like.
- "judgment” and “determination” are used for receiving (e.g., receiving information), transmitting (e.g., transmitting information), input, output, access (accessing) (for example, accessing data in memory) may include deeming that a "judgment” or “decision” has been made.
- judgment and “decision” are considered to be “judgment” and “decision” by resolving, selecting, choosing, establishing, comparing, etc. can contain.
- judgment and “decision” may include considering that some action is “judgment” and “decision”.
- judgment (decision) may be read as “assuming”, “expecting”, “considering”, or the like.
- connection means any direct or indirect connection or coupling between two or more elements, It can include the presence of one or more intermediate elements between two elements being “connected” or “coupled.” Couplings or connections between elements may be physical, logical, or a combination thereof. For example, “connection” may be read as "access”.
- two elements are defined using at least one of one or more wires, cables, and printed electrical connections and, as some non-limiting and non-exhaustive examples, in the radio frequency domain. , electromagnetic energy having wavelengths in the microwave and optical (both visible and invisible) regions, and the like.
- the reference signal can also be abbreviated as RS (Reference Signal), and may also be called Pilot depending on the applicable standard.
- RS Reference Signal
- any reference to elements using the "first,” “second,” etc. designations used in this disclosure does not generally limit the quantity or order of those elements. These designations may be used in this disclosure as a convenient method of distinguishing between two or more elements. Thus, reference to a first and second element does not imply that only two elements can be employed or that the first element must precede the second element in any way.
- a radio frame may consist 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 consist of one or more slots in the time domain. A subframe may be of a fixed length of time (eg, 1 ms) independent of numerology.
- a numerology may be a communication parameter that applies to the transmission and/or reception of a signal or channel. Numerology, for example, subcarrier spacing (SCS), bandwidth, symbol length, cyclic prefix length, transmission time interval (TTI), number of symbols per TTI, radio frame configuration, transceiver It may indicate at least one of certain filtering operations performed in the frequency domain, certain windowing operations performed by the transceiver in the time domain, and/or the like.
- SCS subcarrier spacing
- TTI transmission time interval
- transceiver It may indicate at least one of certain filtering operations performed in the frequency domain, certain windowing operations performed by the transceiver in the time domain, and/or the like.
- a slot may consist 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 unit of time based on numerology.
- a slot may contain multiple mini-slots. Each minislot may consist of one or more symbols in the time domain. A minislot may also be referred to as a subslot. A minislot may consist of fewer symbols than a slot.
- PDSCH (or PUSCH) transmitted in time units larger than minislots may be referred to as PDSCH (or PUSCH) mapping type A.
- PDSCH (or PUSCH) transmitted using minislots may be referred to as PDSCH (or PUSCH) mapping type B.
- Radio frames, subframes, slots, minislots and symbols all represent time units when transmitting signals. Radio frames, subframes, slots, minislots and symbols may be referred to by other corresponding designations.
- one subframe may be called a Transmission Time Interval (TTI)
- TTI Transmission Time Interval
- TTI Transmission Time Interval
- TTI Transmission Time Interval
- one slot or one minislot may be called a TTI.
- TTI Transmission Time Interval
- 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 may be Note that the unit representing the TTI may be called a slot, mini-slot, or the like instead of a subframe.
- TTI refers to, for example, the minimum scheduling time unit in wireless communication.
- the base station performs scheduling to allocate radio resources (frequency bandwidth, transmission power, etc. that can be used by each terminal 20) to each terminal 20 on a TTI basis.
- radio resources frequency bandwidth, transmission power, etc. that can be used by each terminal 20
- TTI is not limited to this.
- a TTI may be a transmission time unit such as a channel-encoded data packet (transport block), code block, or codeword, or may be a processing unit such as scheduling and link adaptation. Note that when a TTI is given, the time interval (for example, the number of symbols) in which transport blocks, code blocks, codewords, etc. are actually mapped may be shorter than the TTI.
- one or more TTIs may be the minimum scheduling time unit. Also, the number of slots (the 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 called a normal TTI (TTI in LTE Rel. 8-12), normal TTI, long TTI, normal subframe, normal subframe, long subframe, slot, or the like.
- a TTI that is shorter than a normal TTI may be called a shortened TTI, a short TTI, a partial or fractional TTI, a shortened subframe, a short subframe, a minislot, a subslot, a slot, and the like.
- the long TTI (e.g., normal TTI, subframe, etc.) may be replaced with a TTI having a time length exceeding 1 ms
- the short TTI e.g., shortened TTI, etc.
- a TTI having the above TTI length may be read instead.
- a resource block is a resource allocation unit in the time domain and the frequency domain, and may include one or more consecutive 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 an RB may be determined based on numerology.
- the time domain of an RB may include one or more symbols and may be 1 slot, 1 minislot, 1 subframe, or 1 TTI long.
- One TTI, one subframe, etc. may each consist of one or more resource blocks.
- One or more RBs are physical resource blocks (PRBs), sub-carrier groups (SCGs), resource element groups (REGs), PRB pairs, RB pairs, etc. may be called.
- PRBs physical resource blocks
- SCGs sub-carrier groups
- REGs resource element groups
- PRB pairs RB pairs, etc. may be called.
- 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 region of 1 subcarrier and 1 symbol.
- a bandwidth part (which may also be called a bandwidth part) may represent a subset of contiguous common resource blocks (RBs) for a certain numerology on a certain carrier.
- the common RB may be identified by an RB index based on 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 multiple BWPs may be configured for a UE within one carrier.
- At least one of the configured BWPs may be active, and the UE may not expect to transmit or receive a given signal/channel outside the active BWP.
- BWP bitmap
- radio frames, subframes, slots, minislots and symbols described above are only examples.
- the number of subframes contained in a radio frame the number of slots per subframe or radio frame, the number of minislots contained within a slot, the number of symbols and RBs contained in a slot or minislot, the number of Configurations such as the number of subcarriers, the number of symbols in a TTI, the symbol length, the cyclic prefix (CP) length, etc.
- CP cyclic prefix
- a and B are different may mean “A and B are different from each other.”
- the term may also mean that "A and B are different from C”.
- Terms such as “separate,” “coupled,” etc. may also be interpreted in the same manner as “different.”
- notification of predetermined information is not limited to being performed explicitly, but may be performed implicitly (for example, not notifying the predetermined information). good too.
- Multi-PUSCH-And-Single-PUSCH-Repetition in the present disclosure is an example of upper layer parameters.
- the push-AggregationFactor is an example of another higher layer parameter.
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Abstract
Description
ステップS1において、端末20は、DCIにより複数PUSCHを基地局10からスケジューリングされる。続くステップS2において、端末20は、複数PUSCHに周波数ホッピングを適用して基地局10に送信する。
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10及び端末20の機能構成例を説明する。基地局10及び端末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10及び端末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、本発明の実施の形態における基地局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、本発明の実施の形態における端末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、端末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、複数のPUSCH(Physical Uplink Shared Channel)をスケジューリングするDCI(Downlink Control Information)及び周波数ホッピングに係るパラメータを基地局から受信する受信部と、前記パラメータに基づいて、前記複数のPUSCHに周波数ホッピングを適用して前記基地局に送信する送信部とを有する端末が提供される。
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10及び端末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端末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 端末
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 (6)
- 複数のPUSCH(Physical Uplink Shared Channel)をスケジューリングするDCI(Downlink Control Information)及び周波数ホッピングに係るパラメータを基地局から受信する受信部と、
前記パラメータに基づいて、前記複数のPUSCHに周波数ホッピングを適用して前記基地局に送信する送信部とを有する端末。 - 前記送信部は、前記パラメータに基づいて、PUSCHをホップの単位とするPUSCH間周波数ホッピングを適用する請求項1記載の端末。
- 前記送信部は、前記パラメータに基づいて、第1ホップをPUSCHのシンボル長の半分の整数部分とし、第2ホップをPUSCHのシンボル数から前記第1ホップのシンボル数を減じたシンボル数とするPUSCH内周波数ホッピングを適用する請求項1記載の端末。
- 前記送信部は、前記パラメータに基づいて、1ホップに複数の前記PUSCHが含まれるスロット内周波数ホッピングを適用する請求項1記載の端末。
- 前記送信部は、前記パラメータに基づいて、1スロット内に複数のPUSCHが不連続に配置される場合、周波数ホッピングの対象となる区間を、先頭のPUSCHの開始シンボルから、末尾のPUSCHの終了シンボルまでとするスロット内周波数ホッピングを適用する請求項1記載の端末。
- 複数のPUSCH(Physical Uplink Shared Channel)をスケジューリングするDCI(Downlink Control Information)及び周波数ホッピングに係るパラメータを基地局から受信する受信手順と、
前記パラメータに基づいて、前記複数のPUSCHに周波数ホッピングを適用して前記基地局に送信する送信手順とを端末が実行する通信方法。
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US20210092762A1 (en) * | 2018-05-11 | 2021-03-25 | Wilus Institute Of Standards And Technology Inc. | Method for multiplexing uplink control information in wireless communication system, and apparatus using same |
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