WO2019190265A1 - Procédé et appareil de commande de la puissance de transmission de canal de données de liaison montante - Google Patents

Procédé et appareil de commande de la puissance de transmission de canal de données de liaison montante Download PDF

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Publication number
WO2019190265A1
WO2019190265A1 PCT/KR2019/003709 KR2019003709W WO2019190265A1 WO 2019190265 A1 WO2019190265 A1 WO 2019190265A1 KR 2019003709 W KR2019003709 W KR 2019003709W WO 2019190265 A1 WO2019190265 A1 WO 2019190265A1
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WIPO (PCT)
Prior art keywords
power control
data channel
uplink data
uplink
transmission power
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PCT/KR2019/003709
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English (en)
Korean (ko)
Inventor
박규진
Original Assignee
주식회사 케이티
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Priority claimed from KR1020190036129A external-priority patent/KR20190114871A/ko
Application filed by 주식회사 케이티 filed Critical 주식회사 케이티
Priority to US17/043,566 priority Critical patent/US11457415B2/en
Priority to CN201980023647.7A priority patent/CN111989958A/zh
Publication of WO2019190265A1 publication Critical patent/WO2019190265A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04—TPC
    • H04W52/06—TPC algorithms
    • H04W52/14—Separate analysis of uplink or downlink
    • H04W52/146—Uplink power control
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04—TPC
    • H04W52/06—TPC algorithms
    • H04W52/14—Separate analysis of uplink or downlink
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04—TPC
    • H04W52/18—TPC being performed according to specific parameters
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04—TPC
    • H04W52/18—TPC being performed according to specific parameters
    • H04W52/20—TPC being performed according to specific parameters using error rate
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04—TPC
    • H04W52/18—TPC being performed according to specific parameters
    • H04W52/24—TPC being performed according to specific parameters using SIR [Signal to Interference Ratio] or other wireless path parameters
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04—TPC
    • H04W52/54—Signalisation aspects of the TPC commands, e.g. frame structure
    • 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

Definitions

  • the present embodiments propose a method and apparatus for controlling transmission power of an uplink data channel in a next generation wireless access network (hereinafter referred to as "NR").
  • NR next generation wireless access network
  • NR New Radio
  • enhancement mobile broadband eMBB
  • massive machine type communication MMTC
  • ultra reliable and low latency communications URLLC
  • Each service scenario has different requirements for data rates, latency, reliability, coverage, and so on, through frequency bands that make up any NR system.
  • As a method for efficiently satisfying the needs of each usage scenario based on different numerology (for example, subcarrier spacing, subframe, transmission time interval, etc.) There is a need for a method of efficiently multiplexing radio resource units of a network.
  • An object of the present embodiments is to provide a method and apparatus for efficiently controlling the transmission power of an uplink data channel in a next generation wireless network.
  • a method of controlling a transmission power of an uplink data channel by a terminal comprising: transmitting an uplink data channel according to a first transmission power control, an uplink discontinuous TPC command And adjusting the transmit power of the uplink data channel being transmitted to the second transmit power control based on the uplink discontinuous TPC command.
  • a method of controlling an uplink data channel of a network comprising: configuring monitoring configuration information for an uplink discontinuous TPC command, transmitting the monitoring configuration information to a terminal transmitting an uplink data channel, and based on monitoring configuration information Providing a method comprising transmitting an uplink discontinuous TPC command .
  • an embodiment of the present invention provides a terminal for transmitting uplink data, the terminal transmitting an uplink data channel according to a first transmission power control, a receiver for receiving an uplink discontinuous TPC command, and an uplink discontinuous TPC command. It provides a terminal including a control unit for adjusting the transmission power of the uplink data channel being transmitted to the second transmission power control.
  • an embodiment is a base station for controlling uplink data transmission of a terminal, the control unit for configuring the monitoring configuration information for the uplink discontinuous TPC command and the monitoring configuration information to the terminal transmitting the uplink data channel And a transmitter for transmitting the uplink discontinuous TPC command based on the monitoring configuration information.
  • a method of controlling transmission power of an uplink data channel by a terminal includes applying different power control to transmission of an uplink data channel and using an uplink data channel to which different power control is applied. It provides a method comprising the step of transmitting.
  • a method of receiving an uplink data channel by a base station explicitly transmitting or implicitly instructing the terminal to control information indicating different power control on the uplink data channel and uplink. It provides a method comprising receiving an uplink data channel applying different power control to the link data channel.
  • an embodiment of the terminal for controlling the transmission power of the uplink data channel, a control unit for applying different power control to the uplink data channel and a transmission unit for transmitting the uplink data channel to which different power control is applied It provides a terminal.
  • an embodiment is a base station for receiving an uplink data channel, and a transmitter and an uplink data channel for explicitly transmitting or implicitly instructing the terminal control information indicating different power control to the uplink data channel.
  • a base station including a receiver for receiving an uplink data channel to which different power control is applied.
  • FIG. 1 is a diagram schematically illustrating a structure of an NR wireless communication system to which an embodiment of the present invention may be applied.
  • FIG. 2 is a view for explaining a frame structure in an NR system to which the present embodiment can be applied.
  • FIG. 4 is a diagram for describing a bandwidth part supported by a radio access technology to which the present embodiment can be applied.
  • FIG. 5 is a diagram exemplarily illustrating a synchronization signal block in a radio access technology to which the present embodiment can be applied.
  • FIG. 6 is a diagram for explaining a random access procedure in a radio access technology to which the present embodiment can be applied.
  • FIG. 8 is a diagram illustrating an example of symbol level alignment among different SCSs in different SCSs to which the present embodiment can be applied.
  • FIG. 10 is a diagram illustrating an embodiment of UL cancellation to which Embodiment 1 can be applied.
  • FIG. 11 is a diagram illustrating another embodiment of UL cancellation to which Embodiment 1 can be applied.
  • FIG. 11 is a diagram illustrating another embodiment of UL cancellation to which Embodiment 1 can be applied.
  • FIG. 12 is a diagram illustrating another embodiment of uplink cancellation (UL cancellation) to which Embodiment 1 can be applied.
  • FIG. 13 is a diagram illustrating another embodiment of uplink cancellation (UL cancellation) to which Embodiment 1 can be applied.
  • FIG. 13 is a diagram illustrating another embodiment of uplink cancellation (UL cancellation) to which Embodiment 1 can be applied.
  • FIG. 14 is a diagram illustrating an embodiment of PUSCH transmission power readjustment according to a discontinuous TPC command to which Embodiment 2 may be applied.
  • 15 and 16 illustrate another embodiment of PUSCH transmission power readjustment according to a discontinuous TPC command to which Embodiment 2 may be applied.
  • FIG. 17 is a flowchart illustrating a method for controlling transmission power of an uplink data channel by a terminal in Embodiment 2.
  • FIG. 18 is a flowchart illustrating a method for controlling an uplink data channel of a terminal by a base station in Embodiment 2.
  • FIG. 18 is a flowchart illustrating a method for controlling an uplink data channel of a terminal by a base station in Embodiment 2.
  • 19 is a diagram illustrating a configuration of a base station according to the second embodiment.
  • 20 is a view showing the configuration of a user terminal according to the second embodiment.
  • FIG. 21 is a diagram illustrating a concept of a reliability request based multiple transmit power control procedure to which Embodiment 3 may be applied.
  • FIG. 22 is a flowchart illustrating a method of controlling transmission power of an uplink data channel by a terminal in Embodiment 3.
  • FIG. 22 is a flowchart illustrating a method of controlling transmission power of an uplink data channel by a terminal in Embodiment 3.
  • FIG. 23 is a flowchart of a method of a base station receiving an uplink data channel in Embodiment 3;
  • 24 is a diagram showing the configuration of a base station according to the third embodiment.
  • 25 is a diagram showing the configuration of a user terminal according to the third embodiment.
  • first, second, A, B, (a), and (b) may be used. These terms are only to distinguish the components from other components, and the terms are not limited in nature, order, order, or number of the components. If a component is described as being “connected”, “coupled” or “connected” to another component, that component may be directly connected to or connected to that other component, but between components It is to be understood that the elements may be “interposed” or each component may be “connected”, “coupled” or “connected” through other components.
  • the wireless communication system herein refers to a system for providing various communication services such as voice and data packets using radio resources, and may include a terminal, a base station, and a core network.
  • the embodiments disclosed below may be applied to a wireless communication system using various wireless access technologies.
  • the embodiments of the present invention may include code division multiple access (CDMA), frequency division multiple access (FDMA), timedivision multiple access (TDMA), orthogonal frequency division multiple access (OFDMA), and single carrier frequency division multiple access (SC-FDMA).
  • CDMA may be implemented by a radio technology such as universal terrestrial radio access (UTRA) or CDMA2000.
  • TDMA may be implemented in a wireless technology such as global system for mobile communications (GSM) / general packet radio service (GPRS) / enhanced data rates for GSM evolution (EDGE).
  • GSM global system for mobile communications
  • GPRS general packet radio service
  • EDGE enhanced data rates for GSM evolution
  • OFDMA may be implemented in wireless technologies such as Institute of Electrical and Electronics Engineers (IEEE) 802.11 (Wi-Fi), IEEE 802.16 (WiMAX), IEEE 802-20, evolved UTRA (E-UTRA), and the like.
  • IEEE 802.16m is an evolution of IEEE 802.16e and provides backward compatibility with systems based on IEEE 802.16e.
  • UTRA is part of a universal mobile telecommunications system (UMTS).
  • 3rd generation partnership project (3GPP) long term evolution (LTE) is part of evolved UMTS (E-UMTS) using evolved-UMTS terrestrial radio access (E-UTRA), employing OFDMA in downlink and SC- in uplink FDMA is adopted.
  • 3GPP 3rd generation partnership project
  • LTE long term evolution
  • E-UMTS evolved UMTS
  • E-UTRA evolved-UMTS terrestrial radio access
  • the embodiments may be applied to a wireless access technology that is currently disclosed or commercialized, and may be applied to a wireless access technology that is
  • the terminal in the present specification is a comprehensive concept of a device including a wireless communication module for communicating with a base station in a wireless communication system, and includes a UE in WCDMA, LTE, HSPA, and IMT-2020 (5G or New Radio).
  • (User Equipment) should be interpreted as a concept that includes a mobile station (MS), a user terminal (UT), a subscriber station (SS), a wireless device, and the like in GSM.
  • the terminal may be a user portable device such as a smart phone according to a usage form, and may mean a vehicle, a device including a wireless communication module in a vehicle, and the like in a V2X communication system.
  • a machine type communication (Machine Type Communication) system may mean an MTC terminal, an M2M terminal equipped with a communication module to perform machine type communication.
  • a base station or a cell of the present specification refers to an end point that communicates with a terminal in terms of a network, and includes a Node-B, an evolved Node-B, an eNB, a gNode-B, a Low Power Node, and an LPN. Sector, site, various types of antenna, base transceiver system (BTS), access point, access point (for example, transmission point, reception point, transmission point and reception point), relay node ), A mega cell, a macro cell, a micro cell, a pico cell, a femto cell, a remote radio head (RRH), a radio unit (RU), and a small cell.
  • BTS base transceiver system
  • RRH remote radio head
  • RU radio unit
  • the base station may be interpreted in two meanings. 1) the device providing the mega cell, the macro cell, the micro cell, the pico cell, the femto cell, the small cell in relation to the wireless area, or 2) the wireless area itself. In 1) all devices that provide a given radio area are controlled by the same entity or interact with each other to cooperatively configure the radio area to the base station. According to the configuration of the wireless area, a point, a transmission point, a transmission point, a reception point, and the like become one embodiment of a base station. In 2), the base station may indicate the radio area itself that receives or transmits a signal from the viewpoint of the user terminal or the position of a neighboring base station.
  • a cell refers to a component carrier having a coverage of a signal transmitted from a transmission / reception point or a signal transmitted from a transmission point or a transmission / reception point, and the transmission / reception point itself. Can be.
  • Uplink means a method for transmitting and receiving data to the base station by the terminal
  • downlink Downlink (Downlink, DL, or downlink) means a method for transmitting and receiving data to the terminal by the base station do.
  • Downlink may mean a communication or communication path from the multiple transmission and reception points to the terminal
  • uplink may mean a communication or communication path from the terminal to the multiple transmission and reception points.
  • the transmitter in the downlink, the transmitter may be part of multiple transmission / reception points, and the receiver may be part of the terminal.
  • uplink a transmitter may be part of a terminal, and a receiver may be part of multiple transmission / reception points.
  • the uplink and the downlink transmit and receive control information through a control channel such as a physical downlink control channel (PDCCH), a physical uplink control channel (PUCCH), a physical downlink shared channel (PDSCH), a physical uplink shared channel (PUSCH), and the like.
  • a control channel such as a physical downlink control channel (PDCCH), a physical uplink control channel (PUCCH), a physical downlink shared channel (PDSCH), a physical uplink shared channel (PUSCH), and the like.
  • Data is transmitted and received by configuring the same data channel.
  • a situation in which a signal is transmitted and received through a channel such as PUCCH, PUSCH, PDCCH, and PDSCH is described as 'transmit and receive PUCCH, PUSCH, PDCCH, and PDSCH'. do.
  • 3GPP After researching 4G (4th-Generation) communication technology, 3GPP is conducting research on 5G (5th-Generation) communication technology to meet the requirements of ITU-R next generation wireless access technology. Specifically, 3GPP is conducting research on a new NR communication technology separate from LTE-A pro and 4G communication technology, in which LTE-Advanced technology is enhanced to meet the requirements of ITU-R as 5G communication technology.
  • LTE-A pro and NR both appear to be submitted in 5G communication technology, but for the convenience of description, the following describes the embodiments of the present invention mainly on NR.
  • Operational scenarios in NR defined various operational scenarios by adding considerations to satellites, automobiles, and new verticals in the existing 4G LTE scenarios.In terms of services, they have eMBB (Enhanced Mobile Broadband) scenarios and high terminal density. Supports a range of mass machine communication (MMTC) scenarios that require low data rates and asynchronous connections, and Ultra Reliability and Low Latency (URLLC) scenarios that require high responsiveness and reliability and support high-speed mobility. .
  • MMTC mass machine communication
  • URLLC Ultra Reliability and Low Latency
  • NR has developed a wireless communication system using new waveform and frame structure technology, low latency technology, mmWave support technology, and forward compatible technology. It starts.
  • the NR system proposes various technological changes in terms of flexibility to provide forward compatibility. The main technical features will be described below with reference to the drawings.
  • FIG. 1 is a diagram schematically illustrating a structure of an NR system to which the present embodiment may be applied.
  • NR system is divided into 5G Core Network (5GC) and NR-RAN part, NG-RAN is for the user plane (SDAP / PDCP / RLC / MAC / PHY) and UE (User Equipment) It consists of gNB and ng-eNBs providing a control plane (RRC) protocol termination.
  • the gNB interconnects or gNBs and ng-eNBs are interconnected via an Xn interface.
  • gNB and ng-eNB are each connected to 5GC through the NG interface.
  • gNB means a base station providing the NR user plane and control plane protocol termination to the terminal
  • ng-eNB means a base station providing the E-UTRA user plane and control plane protocol termination to the terminal.
  • the base station described in the present specification should be understood to mean gNB and ng-eNB, and may be used to mean gNB or ng-eNB.
  • a CP-OFDM waveform using a cyclic prefix is used for downlink transmission, and a CP-OFDM or DFT-s-OFDM is used for uplink transmission.
  • OFDM technology is easy to combine with Multiple Input Multiple Output (MIMO), and has the advantage of using a low complexity receiver with high frequency efficiency.
  • MIMO Multiple Input Multiple Output
  • the NR transmission neuron is determined based on sub-carrier spacing and cyclic prefix (CP), based on 15khz as shown in Table 1 below.
  • CP cyclic prefix
  • the NR's neuronality may be classified into five types according to the subcarrier spacing. This is different from the fixed subcarrier spacing of LTE, which is one of 4G communication technologies, to be 15 kHz. Specifically, the subcarrier spacing used for data transmission in NR is 15, 30, 60, 120khz, and the subcarrier spacing used for synchronization signal transmission is 15, 30, 120, 240khz. In addition, the extended CP is applied only to the 60khz subcarrier interval.
  • the frame structure (frame) in NR is a frame having a length of 10ms consisting of 10 subframes having the same length of 1ms (frame) is defined.
  • One frame may be divided into half frames of 5 ms, and each half frame includes five subframes.
  • one subframe consists of one slot
  • each slot consists of 14 OFDM symbols.
  • 2 is a view for explaining a frame structure in an NR system to which the present embodiment can be applied.
  • the slot is fixedly configured with 14 OFDM symbols in the case of a normal CP, but the length of the slot may vary depending on the subcarrier spacing. For example, in the case of a newerology with a 15khz subcarrier spacing, the slot has a length of 1 ms and the same length as the subframe.
  • the slot includes 14 OFDM symbols, but two slots may be included in one subframe with a length of 0.5 ms. That is, the subframe and the frame are defined with a fixed time length, the slot is defined by the number of symbols, the time length may vary according to the subcarrier interval.
  • NR defines a basic unit of scheduling as a slot, and also introduces a mini slot (or subslot or non-slot based schedule) to reduce transmission delay of a radio section.
  • the use of a wide subcarrier spacing shortens the length of one slot in inverse proportion, thereby reducing the transmission delay in the radio section.
  • the mini slot (or sub slot) is for efficient support for the URLLC scenario and can be scheduled in units of 2, 4, and 7 symbols.
  • NR defines uplink and downlink resource allocation at a symbol level in one slot.
  • a slot structure capable of transmitting HARQ ACK / NACK directly within a transmission slot has been defined, and this slot structure will be described as a self-contained structure.
  • NR is designed to support a total of 256 slot formats, of which 62 slot formats are used in the Rel-15.
  • a combination of various slots supports a common frame structure constituting an FDD or TDD frame.
  • a slot structure in which all symbols of a slot are set to downlink a slot structure in which all symbols are set to uplink
  • a slot structure in which downlink symbol and uplink symbol are combined are supported.
  • NR also supports that data transmission is distributed and scheduled in one or more slots. Accordingly, the base station can inform the terminal whether the slot is a downlink slot, an uplink slot, or a flexible slot by using a slot format indicator (SFI).
  • SFI slot format indicator
  • the base station may indicate a slot format by indicating an index of a table configured through UE-specific RRC signaling using SFI, and may indicate dynamically through downlink control information (DCI) or statically or quasi-statically through RRC. You may.
  • the antenna port is defined such that the channel on which the symbol is carried on the antenna port can be inferred from the channel on which another symbol on the same antenna port is carried. If the large-scale property of a channel on which a symbol on one antenna port is carried can be deduced from the channel on which the symbol on another antenna port is carried, then the two antenna ports are quasi co-located or QC / QCL. quasi co-location relationship.
  • the broad characteristics include one or more of delay spread, Doppler spread, frequency shift, average received power, and received timing.
  • FIG. 3 is a diagram for describing a resource grid supported by a radio access technology to which the present embodiment can be applied.
  • the Resource Grid since the Resource Grid supports a plurality of numerologies in the same carrier, a resource grid may exist according to each numerology.
  • the resource grid may exist according to the antenna port, subcarrier spacing, and transmission direction.
  • the resource block is composed of 12 subcarriers and is defined only in the frequency domain.
  • a resource element is composed of one OFDM symbol and one subcarrier. Accordingly, as shown in FIG. 3, one resource block may vary in size depending on the subcarrier spacing.
  • the NR defines "Point A" serving as a common reference point for the resource block grid, a common resource block, a virtual resource block, and the like.
  • FIG. 4 is a diagram for describing a bandwidth part supported by a radio access technology to which the present embodiment can be applied.
  • the bandwidth part can be designated within the carrier bandwidth and used by the terminal.
  • the bandwidth part is associated with one neuralology and consists of a subset of consecutive common resource blocks, and can be dynamically activated over time.
  • the UE is configured with up to four bandwidth parts, respectively, uplink and downlink, and data is transmitted and received using the bandwidth part activated at a given time.
  • uplink and downlink bandwidth parts are set independently, and in the case of unpaired spectrum, to prevent unnecessary frequency re-tunning between downlink and uplink operation.
  • the bandwidth parts of the downlink and the uplink are configured in pairs so as to share the center frequency.
  • the UE performs a cell search and random access procedure to access and communicate with a base station.
  • Cell search is a procedure in which a terminal synchronizes with a cell of a corresponding base station, obtains a physical layer cell ID, and acquires system information by using a synchronization signal block (SSB) transmitted by a base station.
  • SSB synchronization signal block
  • FIG. 5 is a diagram exemplarily illustrating a synchronization signal block in a radio access technology to which the present embodiment can be applied.
  • an SSB is composed of a primary synchronization signal (PSS) and a secondary synchronization signal (SSS), which occupy one symbol and 127 subcarriers, respectively, three OFDM symbols, and a PBCH spanning 240 subcarriers. .
  • PSS primary synchronization signal
  • SSS secondary synchronization signal
  • the terminal monitors the SSB in the time and frequency domain to receive the SSB.
  • SSB can be transmitted up to 64 times in 5ms.
  • a plurality of SSBs are transmitted in different transmission beams within 5ms, and the UE performs detection assuming that SSBs are transmitted every 20ms based on a specific beam used for transmission.
  • the number of beams available for SSB transmission within 5 ms time may increase as the frequency band increases. For example, up to 4 SSB beams can be transmitted at 3 GHz or less, and up to 8 different SSBs can be transmitted at a frequency band of 3 to 6 GHz and up to 64 different beams at a frequency band of 6 GHz or more.
  • Two SSBs are included in one slot, and the start symbol and the number of repetitions in the slot are determined according to the subcarrier spacing.
  • SSB is not transmitted at the center frequency of the carrier bandwidth, unlike the SS of the conventional LTE. That is, the SSB may be transmitted even where the center of the system band is not, and when supporting broadband operation, a plurality of SSBs may be transmitted in the frequency domain. Accordingly, the terminal monitors the SSB using a synchronization raster, which is a candidate frequency position for monitoring the SSB.
  • the carrier raster and the synchronization raster which are the center frequency position information of the channel for initial access, are newly defined in the NR, and the synchronization raster has a wider frequency interval than the carrier raster, and thus supports fast SSB search of the terminal. Can be.
  • the UE may acquire the MIB through the PBCH of the SSB.
  • the Master Information Block includes minimum information for the UE to receive the remaining system information (RMSI) that the network broadcasts.
  • the PBCH may include information on the position of the first DM-RS symbol on the time-domain, information for the UE to monitor SIB1 (for example, SIB1 neuronological information, information related to SIB1 CORESET, search space information, PDCCH related parameter information, etc.), offset information between the common resource block and the SSB (the position of the absolute SSB in the carrier is transmitted through SIB1), and the like.
  • SIB1 neuronological information is equally applied to message 2 and message 4 of the random access procedure for accessing the base station after the terminal completes the cell search procedure.
  • the aforementioned RMSI means System Information Block 1 (SIB1), and SIB1 is broadcast periodically (ex, 160 ms) in a cell.
  • SIB1 includes information necessary for the UE to perform an initial random access procedure and is periodically transmitted through the PDSCH.
  • the UE needs to receive the information of the neuterology used for the SIB1 transmission and the control resource set (CORESET) information used for scheduling the SIB1 through the PBCH.
  • the UE checks scheduling information on SIB1 using SI-RNTI in CORESET and acquires SIB1 on PDSCH according to the scheduling information.
  • the remaining SIBs other than SIB1 may be transmitted periodically or may be transmitted at the request of the terminal.
  • FIG. 6 is a diagram for explaining a random access procedure in a radio access technology to which the present embodiment can be applied.
  • the terminal transmits a random access preamble for random access to the base station.
  • the random access preamble is transmitted on the PRACH.
  • the random access preamble is transmitted to the base station through a PRACH composed of consecutive radio resources in a specific slot that is periodically repeated.
  • BFR beam failure recovery
  • the terminal receives a random access response to the transmitted random access preamble.
  • the random access response may include a random access preamble identifier (ID), an uplink grant (UL Grant), a temporary Temporary Cell-Radio Network Temporary Identifier (C-RNTI), and a time alignment command (TAC). Since one random access response may include random access response information for one or more terminals, a random access preamble identifier may be included to indicate to which terminal the included uplink grant, temporary C-RNTI, and TAC are valid. .
  • the random access preamble identifier may be an identifier for the random access preamble received by the base station.
  • the TAC may be included as information for the UE to adjust uplink synchronization.
  • the random access response may be indicated by a random access identifier on the PDCCH, that is, a random access-radio network temporary identifier (RA-RNTI).
  • RA-RNTI random access-radio network temporary identifier
  • the terminal receiving the valid random access response processes the information included in the random access response and performs the scheduled transmission to the base station. For example, the terminal applies a TAC and stores a temporary C-RNTI.
  • the terminal applies a TAC and stores a temporary C-RNTI.
  • the uplink grant data stored in the buffer of the terminal or newly generated data is transmitted to the base station. In this case, information that can identify the terminal should be included.
  • the terminal receives a downlink message for contention resolution.
  • the downlink control channel in NR is transmitted in a control resource set (CORESET) having a length of 1 to 3 symbols, and transmits up / down scheduling information, slot format index (SFI), and transmit power control (TPC) information.
  • CORESET control resource set
  • SFI slot format index
  • TPC transmit power control
  • CORESET Control Resource Set
  • the terminal may decode the control channel candidate using one or more search spaces in the CORESET time-frequency resource.
  • the QCL (Quasi CoLocation) assumption for each CORESET has been set, which is used to inform the analog beam direction in addition to the delay spread, Doppler spread, Doppler shift, and average delay, which are assumed by conventional QCL.
  • CORESET may exist in various forms within a carrier bandwidth in one slot, and CORESET may be configured with up to three OFDM symbols on a time-domain.
  • CORESET is defined as a multiple of six resource blocks up to the carrier bandwidth in the frequency domain.
  • the first CORESET is indicated through the MIB as part of the initial bandwidth part configuration to receive additional configuration information and system information from the network.
  • the terminal may receive and configure one or more CORESET information through RRC signaling.
  • NR New Radio
  • RAN WG1 has a frame structure for each new radio (NR). (frame structure), channel coding & modulation (waveform & multiple access scheme), etc. design is in progress.
  • NR new radio
  • the NR is required to be designed to satisfy various QoS requirements required for each detailed and detailed service scenario as well as an improved data rate compared to LTE / LTE-Advanced.
  • enhancement mobile broadband eMBB
  • massive machine type communication MMTC
  • ultra reliable and low latency communications URLLC
  • Each service scenario is a frequency constituting an arbitrary NR system because the requirements for data rates, latency, reliability, coverage, etc. are different from each other.
  • a radio resource unit based on different numerology (eg, subcarrier spacing, subframe, TTI, etc.) as a method for efficiently satisfying each service scenario needs through a band. There is a need for a method of efficiently multiplexing the data.
  • TDM, FDM, or TDM / FDM based on one or a plurality of NR component carriers (s) for numerology having different subcarrier spacing values.
  • a subframe is defined as a kind of time-domain structure, and reference numerology is used to define a subframe duration. It is decided to define a single subframe duration consisting of 14 OFDM symbols of 15 kHz sub-carrier spacing (SCS) based normal CP overhead, the same as LTE.
  • SCS sub-carrier spacing
  • the subframe has a time duration of 1 ms.
  • subframes of NR are absolute reference time durations, and slots and mini-slots are time units based on actual uplink / downlink data scheduling. ) Can be defined.
  • any slot consists of 14 symbols, and according to the transmission direction of the slot, all symbols are used for DL transmission or all symbols are UL transmission (UL). It may be used for transmission or in the form of a downlink portion (DL portion) + a gap (gap) + uplink portion (UL portion).
  • a short slot time-domain scheduling interval for uplink / downlink data transmission and reception is defined based on a minislot consisting of fewer symbols than the slot in an arbitrary number (numerology) (or SCS).
  • a domain scheduling interval may be set, or a long time-domain scheduling interval for up / downlink data transmission / reception may be configured through slot aggregation.
  • latency critical data such as URLLC
  • it is based on 1ms (14 symbols) defined in a numerology-based frame structure with small SCS value such as 15kHz.
  • SCS value such as 15kHz.
  • a mini slot consisting of fewer OFDM symbols than the corresponding slot is defined and based on this, critical to the same delay rate as the corresponding URLLC. (latency critical) may be defined so that scheduling is performed for data.
  • a number of neurons having different SCS values in one NR carrier are supported.
  • Scheduling data according to latency requirements based on slots (or mini slots) lengths defined for each cell is also considered. For example, as shown in FIG. 8 below, when the SCS is 60 kHz, since the symbol length is reduced by about 1/4 compared to the case of the SCS 15 kHz, when one slot is formed of the same 14 OFDM symbols, The slot length is 1ms, while the 60kHz-based slot length is reduced to about 0.25ms.
  • L1 control information such as DL assignment Downlink Control Information (DCI) and UL Grant DCI is transmitted and received through a PDCCH.
  • a control channel element (CCE) is defined as a resource unit for transmitting the PDCCH, and in the NR, a control resource set (CORESET), which is a frequency / time resource for transmitting the PDCCH, may be set for each terminal.
  • each CORESET may be configured with one or more search spaces consisting of one or more PDCCH candidates for monitoring the PDCCH.
  • uplink transmission power of a terminal is determined by a maximum transmission power value, a higher layer parameter, a path loss, and a TPC command value transmitted through a downlink control channel. .
  • the uplink control channel in * NR may be divided into a short PUCCH and a long PUCCH structure supporting different symbol lengths in consideration of transmission delay and requirements for coverage.
  • various options are provided for the start symbol position and symbol length of the PUCCH in consideration of a symbol-level flexible resource configuration scheme.
  • it supports functions such as on / off control DM-RS overhead setting for frequency hopping of the PUCCH.
  • non-slot-based (ie, mini-slot-based) PUSCH transmission and thus DM-RS transmission type mapping type (mapping type) B and aggregated slot (aggregated-slot) -based PUSCH transmission
  • Various types of PUSCH transmission methods have been defined, such as grant-free PUSCH transmission.
  • a scalable bandwidth operation for any LTC CC is supported. That is, according to the frequency deployment scenario (deployment scenario) in any LTE carrier to configure a single LTE CC, a minimum bandwidth of 1.4 MHz to 20 MHz could be configured, the normal LTE terminal is one LTE For the CC, the transmit / receive capability of 20 MHz bandwidth was supported.
  • bandwidth part (s)
  • activation through different bandwidth part configuration
  • one or more bandwidth parts may be configured through one serving cell configured from a terminal perspective, and the corresponding UE may include one downlink bandwidth part (s) in a serving cell.
  • DL bandwidth part) and one uplink bandwidth part (UL bandwidth part) by activation (activation) was defined to be used for transmitting and receiving uplink / downlink data.
  • activation activation
  • an initial bandwidth part for an initial access procedure of a terminal is defined in a serving cell, and at least one terminal-specific message may be defined through dedicated RRC signaling for each terminal.
  • a UE-specific bandwidth part (s) may be configured, and a default bandwidth part for a fallback operation may be defined for each terminal.
  • a plurality of downlink and / or uplink bandwidth parts are simultaneously activated and used according to the capability and bandwidth part (s) configuration of the terminal.
  • s capability and bandwidth part
  • only one downlink bandwidth part and one uplink bandwidth part may be activated at an arbitrary time in an arbitrary terminal in NR rel-15. .
  • a method of indicating through a group common PDCCH for discontinuous transmission has been defined. That is, when a certain terminal receives the indication information for the discontinuous transmission, the terminal receives some time / frequency of PDSCH transmission resources allocated for the terminal according to the indication information. The presence or absence of preemption for data transmission of other UEs with respect to time / frequency) resources could be confirmed.
  • the present specification proposes a preemption-based uplink data channel transmission / reception method for efficiently multiplexing uplink data transmission resources between terminals having different latency requirements.
  • an uplink cancellation indication is described using the term, but the present specification is not limited to a specific specific term for the indication.
  • the terms of the uplink cancellation indication described above are UL preemption indication, discontinuous UL transmission indication or suspending UL transmission indication. Or other terminology, the invention being not limited by the name.
  • Example 1-1 Uplink cancellation instruction ( Uplink Set monitoring information for cancellation indication
  • a UE-specific DCI format for an uplink cancellation indication may be defined.
  • each UE through UE-specific PRESET or UE-specific PDCCH transmitted through UE-specific CORESET or UE-specific search space. Can be defined to send.
  • a UE-group common DCI format for uplink cancellation indication may be defined.
  • uplink cancellation indication information for any UE is defined to be transmitted through UE-specific PDCCH or UE-group common PDCCH
  • the base station / The network is uplinked through UE-specific higher layer signaling or cell-specific / UE-group common higher layer signaling for any UE. It can be defined to set up monitoring for uplink cancellation indication. However, the monitoring setting for the uplink cancellation indication may be set independently of whether the monitoring setting for the DL preemption indication is set.
  • the aforementioned uplink cancellation indication may be indicated based on a specific sequence in addition to the method transmitted through the PDCCH in the form of UEI-specific or group-common.
  • the specific sequence may be preset or set based on various specific factors such as cell ID, terminal ID, or bandwidth.
  • the monitoring configuration information for the uplink cancellation indication includes control resource set (CORESET), search space configuration information, and RNTI for monitoring the corresponding uplink cancellation indication information.
  • CORESET control resource set
  • search space configuration information search space configuration information
  • RNTI for monitoring the corresponding uplink cancellation indication information.
  • Radio Network Temporary Identifier may include setting information or monitoring period setting information.
  • Example 1-2 Uplink cancellation instruction ( Uplink operation of UE when receiving information
  • Example 1-2-1 Remainder PUSCH Remaining PUSCH How to suspend transmission
  • the UE that has received the uplink cancellation indication information described above does not perform the PUSCH transmission in the remaining OFDM symbol (s) among the resources allocated for the PUSCH being transmitted, that is, the PUSCH. Can be defined to stop the transfer.
  • the K value may be defined to be transmitted by the base station / network to be transmitted to the terminal through explicit signaling.
  • the K value may be set by a base station / network to allow UE-specific higher layer signaling or cell-specific / UE-group common higher layer. layer signaling) to the terminal.
  • the K value is included in corresponding uplink cancellation indication information, for example, by the base station / network, and is dynamically set and transmitted through physical layer control signaling. Can be.
  • the K value is set implicitly by the capability of the UE or based on the K-value, and is set in the base station / network based on this, and thus explicit signaling is performed as described above. ) To be transmitted to the terminal.
  • the K value may be determined implicitly.
  • the K value may be defined to be determined as a function of numerology / SCS value of downlink or uplink.
  • the K value may be defined as a function of the monitoring period value of the cancellation indication.
  • a case in which PUSCH resource allocation is performed within a slot boundary of a slot is illustrated. That is, a case where a PUSCH resource allocation based on a slot or a mini slot (non-slot) is performed.
  • the UE may perform PUSCH transmission through a slot allocated to PUSCH transmission.
  • the UE may perform an operation of stopping PUSCH transmission in a remaining symbol within a slot boundary of the corresponding slot after a symbol corresponding to a K value, which is a delay time. .
  • the terminal may perform suspending only for the remaining PUSCH transmission in the slot boundary of the slot #n in which an uplink cancellation indication is received. Thereafter, the UE may normally perform PUSCH transmission through the remaining allocated slots (after # n + 1).
  • the terminal may receive a slot (#n) where an uplink cancellation indication is received. ) And all remaining PUSCH transmissions for subsequent aggregated slots (after # n + 1).
  • Example 1-2-2 Remainder PUSCH Remaining PUSCH in some time duration of transmission PUSCH Suspending only transmission
  • the UE Upon receiving the uplink cancellation indication information described above, as shown in FIG. 13, the UE corresponds to an OFDM symbol corresponding to some time duration with respect to the PUSCH transmission being transmitted. It can be defined to stop only PUSCH transmission.
  • a UE that receives an uplink cancellation indication transmits a PUSCH after K, which is a predetermined timing gap, from a time point of transmitting uplink cancellation indication information.
  • the PUSCH transmission corresponding to M which is a duration of transmission, may be defined to be suspended and then resumed after the PUSCH transmission.
  • the time point at which the uplink cancellation indication information is transmitted is, for example, the last symbol in which the uplink cancellation indication information is transmitted or the uplink corresponding to the last symbol in which the uplink cancellation indication information is transmitted. It can mean a symbol.
  • the method of determining the corresponding K value may be defined to be transmitted by the base station / network as described above and transmitted to the terminal through explicit signaling.
  • the K value may be set by a base station / network to allow UE-specific higher layer signaling or cell-specific / UE-group common higher layer. layer signaling) to the terminal.
  • the K value is included in corresponding uplink cancellation indication information, for example, by the base station / network, and is dynamically set and transmitted through physical layer control signaling. Can be.
  • the K value is set implicitly by the capability of the UE or based on the K-value, and is set in the base station / network based on this, and thus explicit signaling is performed as described above. ) To be transmitted to the terminal.
  • the K value may be determined implicitly. For example, it may be defined to be determined as a function of the numerology / SCS value of the DL or UL, or to be determined as a function of the monitoring period value of the cancellation indication.
  • the method of determining the M value may be defined by the base station / network and transmitted to the terminal through explicit signaling, similarly to the method of determining the K value.
  • the M value may be set by the base station / network to allow UE-specific higher layer signaling or cell-specific / UE-group common higher layer. layer signaling) to the terminal.
  • the M value may be included in corresponding uplink cancellation indication information, for example, by the base station / network, and may be dynamically set and transmitted through physical layer control signaling. Can be.
  • the M value may be defined to be implicitly set by the capability of the terminal or set at the base station / network based on the capability of the terminal and transmitted to the terminal through explicit signaling as described above. .
  • the corresponding M value may be determined implicitly. For example, it may be defined to be determined as a function of the number of downlink or uplink numerology / SCS values, or to be determined as a function of the monitoring period value of the cancellation indication.
  • a PUSCH transmission is resumed after a certain duration has elapsed, it may be defined to signal it at the base station / network explicitly.
  • an OFDM symbol or a slot may be applied as a unit for defining the K value or the M value, and for PUSCH transmission as a numerology or SCS value for defining a symbol or slot boundary. It may be defined to be determined by the SCS applied or determined by the SCS of the downlink (for example, PDCCH for transmitting an uplink cancellation indication).
  • transmission of uplink cancellation indication information during PUSCH transmission of a UE may be transmitted through downlink.
  • the transmission of uplink cancellation indication information may be performed through a neighbor cell of a cell in which the UE is performing PUSCH transmission.
  • a multicarrier or carrier aggregation scheme may be used.
  • this is only an example, and the present invention is not limited thereto, and the UE is not limited to the specific method as long as the UE can receive uplink cancellation indication information while performing PUSCH transmission.
  • the uplink channel of the URLLC terminal may be transmitted during the uplink data channel transmission of the eMBB terminal, thereby enabling efficient multiplexing of the URLLC service and the eMBB service.
  • the present specification also proposes a method and apparatus for controlling uplink data channel transmission power for efficient multiplexing for Ultra Reliable and Low Latency Communications (URLLC) and Enhanced Mobile BroadBand (eMBB) services in a next generation / 5G wireless access network.
  • URLLC Ultra Reliable and Low Latency Communications
  • eMBB Enhanced Mobile BroadBand
  • the present specification is a method for efficiently supporting uplink data transmission between terminals having different latency requirements in a next generation / 5G wireless access network, and a method and apparatus for uplink transmission multiplexing through transmission power control. Suggest to
  • a part of the uplink data transmission resources of another terminal that is already scheduled may be preempted and transmitted similarly to the downlink case.
  • the URLLC terminal may preemptively transmit a portion of the uplink data transmission resource of the eMBB terminal.
  • Embodiment 1 stops transmitting an uplink data channel (PUSCH) of a terminal currently transmitting uplink data and provides an uplink cancellation indication for using the corresponding resource for uplink data transmission of a URLLC terminal.
  • PUSCH uplink data channel
  • Support and specific terminal operation plan were defined.
  • the preemption-based PUSCH multiplexing may be performed through proper power control between the eMBB PUSCH transmission and the URLLC PUSCH transmission in which the collision occurs.
  • the UE in which URLLC PUSCH transmission is allocated to some time period or frequency interval resources allocated for URLLC PUSCH transmission among the eMBB PUSCH transmission intervals is instructed to allocate sufficient PUSCH transmission power, and the PUSCH for UEs in which eMBB PUSCH transmission is performed.
  • the base station can ensure the reception performance for the urgent URLLC PUSCH.
  • the second embodiment adjusts the PUSCH transmission power of a specific terminal (eg eMBB terminal) that is currently being transmitted as described above, and thus performs performance on PUSCH transmission of another terminal (eg URLLC terminal) using a part of the same radio resource by overlapping.
  • a dynamic power control indication method and apparatus to ensure the reliability.
  • the indication control information for dynamically changing a PUSCH transmission power of a UE during PUSCH transmission is referred to as an uplink discontinuous TPC command or uplink discontinuous TPC command information.
  • an uplink discontinuous TPC command or uplink discontinuous TPC command information.
  • the terms of the uplink discontinuous TPC command described above are an uplink cancellation indication, an uplink preemption indication, and an uplink suspending TPC command. command), an uplink interrupt TPC command, or another terminology, and the invention is not limited by the name.
  • Embodiment 2 transmits and receives an uplink data channel according to a first transmission power control between a terminal and a base station, transmits and receives an uplink discontinuous TPC command, and transmits an uplink data channel based on an uplink discontinuous TPC command.
  • a UE-specific downlink DCI format for discontinuous TPC commands may be defined.
  • the base station transmits for each terminal through a UE-specific PDCCH (UE-specific PDCCH) transmitted through a UE-specific corset or a UE-specific search space for each terminal. Can be.
  • UE-specific PDCCH UE-specific PDCCH
  • a downlink DCI format (DCI format) common to UE-groups for discontinuous TPC commands may be defined.
  • the base station is a UE-group transmitted through a UE-group common CORESET or UE-group common search space configured for any UE-group.
  • Each UE may be transmitted through a common PDCCH (UE-group common PDCCH).
  • the base station / network may be assigned to any UE.
  • Configure monitoring for discontinuous TPC commands through UE-specific higher layer signaling or cell-specific / UE-group common higher layer signaling Can be defined to However, the monitoring setting for the corresponding discontinuous TPC command may be set independently of whether the monitoring setting for the downlink preemption instruction is set.
  • the monitoring setting information for the discontinuous TPC command may include CORESET and search space setting information, RNTI setting information, and monitoring cycle setting information for monitoring the discontinuous TPC command information.
  • Example 2-2 Discontinuous TPC Command Information Configuration and Terminal Operation
  • Example 2-2-1 Rebalance power for all remaining PUSCH transmissions
  • the terminal that has received the aforementioned discontinuous TPC command information has a discontinuous TPC for PUSCH transmission in the remaining OFDM symbol (s) after receiving the discontinuous TPC command among the resources allocated for the PUSCH being transmitted.
  • the remaining PUSCH transmission may be defined based on the read power adjusted according to the command indication information.
  • the terminal receiving the discontinuous TPC command discontinuous TPC command re-adjusts the transmit power according to the discontinuous TPC command indication information for the remaining PUSCH transmission after the constant timing gap K from the time point at which the discontinuous TPC command information is made and adjusts the corresponding PUSCH.
  • the time point at which the discontinuous TPC command information is transmitted may mean, for example, an uplink symbol corresponding to the last symbol in which discontinuous TPC command information is transmitted or the last symbol in which discontinuous TPC command information is transmitted.
  • the terminal receiving the discontinuous TPC command discontinuous TPC command determines the PUSCH transmission power according to the first transmission power control before K ', which is a certain timing gap, from the time point at which the discontinuous TPC command information is transmitted,
  • the transmission power may be readjusted according to the second transmission power control.
  • the first transmit power control may be a general PUSCH transmit power control method
  • the second transmit power control may transmit transmit power according to the second transmit power control according to the discontinuous TPC command indication information. It can mean recalibration.
  • the first transmission power control may apply the above-described Equation 1 or a newly defined Equation, and may apply a parameter or a parameter set defined in Equation 1 in these equations.
  • the second transmission power control may mean applying the same equation as the first transmission power control, but applying a different parameter or parameter set from the first transmission power control.
  • the parameter or parameter set used in the first and second transmit power controls is the maximum transmit power value P CMAX , f, c (i) set for the corresponding terminal in Equation 1, the component P O_NOMINAL_ PUSCH provided by the upper layer parameter , f, c (j), component P O_ UE _ PUSCH , f, c (j), component P O_NOMINAL_PUSCH, f, c (j) and component P O_ UE _ PUSCH , f, c (j) Parameters P o_PUSCH, f, c (j), which are offset values computed by a particular higher layer parameter, According to the TPC command value transmitted by the downlink control information , TPC comment included in downlink control information And a PUSCH power control adjustment state with index l calculated by a particular higher layer parameter. May be one or more than two.
  • equations applied to the first transmission power control and the second transmission power control may be different from each other.
  • the first transmission power control may apply Equation 1 described above.
  • the second transmit power control may apply an equation different from Equation 1 below.
  • the corresponding K 'value may be defined to be transmitted by the base station / network to be transmitted to the terminal through explicit signaling.
  • the terminal may be configured by a base station / network and configured through UE-specific or cell-specific / UE-group common higher layer signaling. Can be sent to.
  • the K 'value may be dynamically set and transmitted by the base station / network through physical layer control signaling.
  • the K 'value may be included in corresponding discontinuous TPC command information dynamically transmitted through physical layer control signaling.
  • the K' value is implicitly set by the capability of the terminal or is set in the base station / network based on the capability so that it is transmitted to the terminal through explicit signaling as described above.
  • the K' value may be determined implicitly. For example, it may be defined to be determined as a function of downlink or uplink numerology / subcarrier number / SCS value. It may also be defined such that the value is determined as a function of the monitoring period value of the aforementioned discontinuous TPC command.
  • the discontinuous TPC command indication information may be defined to include power offset indication information for readjustment of transmission power of the corresponding PUSCH.
  • the terminal may readjust the transmission power value of the currently transmitted PUSCH according to the corresponding power offset indication information to perform the remaining PUSCH transmission.
  • the UE transmits the PUSCH to the carrier f of the serving cell c by using a parameter set configuration with index j and a PUSCH power control adjustment state with index l.
  • the transmission power (P PUSCH , f, c (i, j, qd, l)) for the PUSCH transmission of any terminal by the following equation (1) It was decided.
  • Equation 1 the variables summarized below are specifically defined in 7.Uplink Power control in TS38.213.
  • P CMAX , f, c (i) is the configured UE transmit power for carrier f of serving cell for the carrier f of the serving cell c in the PUSCH transmission period i (PUSCH transmission period i) c in PUSCH transmission period i).
  • P o_ PUSCH , f, c (j) is a parameter composed of the sum of components P O_NOMINAL_ PUSCH , f, c (j) and components P O_UE_PUSCH, f, c (j) provided by higher layer parameters.
  • u is the carrier f of the serving cell c and the subcarrier spacing for the PUSCH.
  • the bandwidth of the PUSCH resource assignment expressed in number of resource blocks for PUSCH transmission is expressed by the number of allocated resource blocks for PUSCH transmission.
  • Is provided by certain higher layer parameters Is a downlink path attenuation value in dB unit calculated by the corresponding terminal using the reference signal resource q d , Is an offset value calculated by a specific upper layer parameter, Is a value indicating a PUSCH power control adjustment state with index l calculated by the TPC comment included in the downlink control information and a specific upper layer parameter.
  • Any UE derives a PUSCH transmission power value by Equation (1) above when transmitting PUSCH of one or more slot (s) or mini-slot based (i.e. non-slot based).
  • the PUSCH transmission power value of the corresponding UE may be determined accordingly.
  • the second transmission is performed according to the power offset indication information indicated through the discontinuous TPC command.
  • the transmission power may be readjusted by the power offset value indicated by the Equation 1 for the transmission power for the PUSCH transmission of an arbitrary terminal to perform the PUSCH transmission corresponding to the remaining SCHs.
  • the above-described power offset indication information indicated by the discontinuous TPC command may be configured with one bit or more.
  • a fixed power offset value according to the setting value of the discontinuous TPC command may be defined in a table form.
  • the power offset value according to the setting value of the discontinuous TPC command may be set by the base station. If the power offset value according to the setting value of the discontinuous TPC command is set by the base station, the terminal-specific higher layer signaling by setting the power offset value corresponding to each setting value of the power offset indication information of the corresponding TPC command for each terminal. It can be transmitted through or set by all terminals or terminal-group in the cell, and can be defined to transmit through cell-specific / terminal-group common higher layer signaling.
  • the PUSCH transmission power control according to the discontinuous TPC command includes not only the power readjustment for the remaining PUSCHs according to the discontinuous TPC command but also the corresponding PUSCH transmission power to be zero.
  • the information region indicating that the remaining PUSCH transmission itself is stopped, as well as an indication of power rebalancing for the remaining PUSCH through the above-described power offset indication information through the discontinuous TPC command, that is, the remaining PUSCH transmission power It can be defined to include an information area indicating to be zero.
  • it may be defined to include 1-bit flag information for indicating whether the corresponding discontinuous TPC command is for retransmission of the remaining PUSCH or to stop transmission for the remaining PUSCH.
  • the flag information of this bit may be defined to determine whether the UE retransmits the transmission power for the remaining PUSCH or stops the remaining PUSCH transmission according to the corresponding discontinuous TPC command.
  • the terminal receiving the discontinuous TPC command may define to stop the remaining PUSCH transmission itself. have.
  • Example 2-2-2 Remainder PUSCH Part of the transfer In time duration A method of retransmitting transmission power only for PUSCH transmission.
  • the UE may define to retransmit the PUSCH transmission power only for some time period for the PUSCH transmission being transmitted.
  • the terminal that receives the discontinuous TPC command corresponds to M ′, which is an adjustment time duration of the PUSCH transmission after the constant timing gap K ′ from the time point at which the discontinuous TPC command information is transmitted.
  • M ′ is an adjustment time duration of the PUSCH transmission after the constant timing gap K ′ from the time point at which the discontinuous TPC command information is transmitted.
  • the PUSCH transmission after adjusting the transmission power value, it may be defined to resume the PUSCH transmission based on the original transmission power value after that.
  • the terminal that receives the discontinuous TPC command determines the PUSCH transmission power according to the first transmission power control before K ′, which is a predetermined timing gap, from the time point at which the discontinuous TPC command information is transmitted.
  • the transmission power may be readjusted according to the corresponding discontinuous TPC command indication information for the remaining PUSCH transmission after the timing gap K 'and M' which is a reconditioning time duration.
  • the UE may determine the PUSCH transmission power according to the first transmission power control after the timing gap K ′ and the reconditioning time duration M ′ from the time point at which the discontinuous TPC command information is transmitted.
  • the first transmission power control and the second transmission power control may be the same as described in the embodiment 2-2-1.
  • the UE has a third transmission power control and second transmission power control different from the timing gap K 'and the first transmission power control after the readjustment time duration M' from the time point at which the discontinuous TPC command information is transmitted.
  • PUSCH transmission power may be determined according to transmission power control.
  • the third transmission power control may be to apply a different parameter or parameter set from the first and second power control, or to apply another equation.
  • the time point at which the discontinuous TPC command information is transmitted may correspond to, for example, the last symbol in which discontinuous TPC command information is transmitted or the last symbol in which discontinuous TPC command information is transmitted. It may mean an uplink symbol.
  • a method of determining the corresponding K 'value, a method of determining a power offset value for readjusting transmission power through the discontinuous TPC command, and a method of indicating whether to stop the corresponding PUSCH transmission or adjust the transmission power are performed. It may be the same as described above in Example 2-2-1.
  • the method of determining the M 'value which is a time period to which the above-described transmission power readjustment is applied, may also be defined to be set by the base station / network and transmitted to the terminal through explicit signaling, similarly to the method of determining the K' value described above.
  • UE-specific higher layer signaling or cell-specific / UE-group common higher layer signaling configured by a base station / network It may be transmitted to the terminal through. It may also be dynamically set and transmitted through physical layer control signaling.
  • the M 'value may be included in corresponding discontinuous TPC command information dynamically transmitted through physical layer control signaling.
  • the corresponding M 'value may be set to be implicit by the capability of the terminal or set in the base station / network based on the capability and transmitted to the terminal through explicit signaling as described above. have.
  • the corresponding M' value may be determined implicitly. For example, it may be defined to be determined as a function of the number of downlink or uplink numerology / SCS values, or to be determined as a function of the monitoring period value of the cancellation indication.
  • the transmission power readjustment based on the discontinuous TPC command information according to the above-described embodiments 2-2-1 and 2-2-1 indicates that the application of the discontinuous TPC command is being transmitted or is instructed when the discontinuous TPC command is received. It is defined to be temporarily applied only to the PUSCH transmission, and a corresponding power readjustment value may not be accumulated and applied to other subsequent PUSCH transmissions. That is, the subsequent PUSCH may be defined to follow the existing PUSCH transmission power control procedure regardless of whether a corresponding discontinuous TPC command is received and a power readjustment value according to the discontinuous TPC command.
  • FIG. 17 is a flowchart illustrating a method for controlling transmission power of an uplink data channel by a terminal in Embodiment 2.
  • step S1720 of receiving an uplink discontinuous TPC command the uplink discontinuous TPC command may be monitored based on the monitoring configuration information for the uplink discontinuous TPC command.
  • the monitoring configuration information includes control resource set (CORESET) and search space configuration information for monitoring uplink discontinuous TPC commands, and Radio Network Temporary Identifier (RNTI). Configuration information and monitoring cycle setting information may be included. Specific contents thereof are the same as those described in detail in Example 2-1.
  • the uplink discontinuous TPC command may be indicated through a UE-specific DCI or a UE-group common DCI.
  • the transmission power of the uplink data channel may be adjusted by the second transmission power control for all of the plurality of allocated slots.
  • the uplink discontinuous TPC command may further include information on a readjustment period for adjusting the transmit power of the uplink data channel to the second transmit power control.
  • the transmission power of the uplink data channel is adjusted to the second transmission power control, and the transmission power of the uplink data channel is adjusted to the second transmission power control during the readjustment period, and after the readjustment period has elapsed, the uplink The transmit power of the data channel may be adjusted by the first transmit power control. Details thereof are the same as those described in detail in Example 2-2-2 described above with reference to FIGS. 15 and 16.
  • FIG. 18 is a flowchart illustrating a method for controlling an uplink data channel of a terminal by a base station in Embodiment 2.
  • FIG. 18 is a flowchart illustrating a method for controlling an uplink data channel of a terminal by a base station in Embodiment 2.
  • the method in the method of controlling an uplink data channel of a terminal, includes configuring monitoring setting information for an uplink discontinuous TPC command (S1810) and providing the monitoring setting information to a terminal transmitting an uplink data channel. And a step S1830 of transmitting an uplink discontinuous TPC command based on the step S1820 and the monitoring configuration information.
  • the monitoring configuration information may include control resource set (CORESET) and search space configuration information, Radio Network Temporary Identifier (RNTI) configuration information, and monitoring cycle configuration information for monitoring uplink discontinuous TPC commands. It may include. Specific contents thereof are the same as those described in detail in Example 2-1.
  • the uplink discontinuous TPC command may be indicated through a UE-specific DCI or a UE-group common DCI.
  • the UE transmits a transmission power of an uplink data channel after a predetermined delay time elapses when an uplink discontinuous TPC command is received. Can be readjusted.
  • the terminal readjusts the transmission power of the uplink data channel in the slot in which the uplink discontinuous TPC command is received or for all of the plurality of slots allocated based on the uplink data channel resource allocation information for the uplink data channel.
  • the transmission power of the uplink data channel may be readjusted.
  • the terminal may adjust the transmit power of the uplink data channel to the second transmit power control during the readjustment period, and adjust the transmit power of the uplink data channel to the first transmit power control after the readjustment period elapses. .
  • FIG. 19 is a diagram showing the configuration of a base station according to the third embodiment.
  • a base station 1900 includes a controller 1910, a transmitter 1920, and a receiver 1930.
  • the controller 1910 controls the overall operation of the base station 1900 according to the method for controlling the transmission power of the uplink data channel in the next-generation wireless network required to perform the above-described present invention.
  • the transmitter 1920 and the receiver 1930 are used to transmit and receive signals, messages, and data necessary for carrying out the above-described present invention.
  • the base station 1900 for controlling uplink data transmission of the terminal transmits the monitoring configuration information to the control unit 1910 constituting the monitoring configuration information for the uplink discontinuous TPC command and the terminal transmitting the uplink data channel, and monitoring It may include a transmitter 1920 for transmitting the uplink discontinuous TPC command based on the configuration information.
  • the monitoring configuration information may include control resource set (CORESET) and search space configuration information, Radio Network Temporary Identifier (RNTI) configuration information, and monitoring cycle configuration information for monitoring uplink discontinuous TPC commands. It may include. Specific contents thereof are the same as those described in detail in Example 2-1.
  • the uplink discontinuous TPC command may be indicated through a UE-specific DCI or a UE-group common DCI.
  • the terminal may readjust the transmission power of the uplink data channel after a predetermined delay time elapses when the uplink discontinuous TPC command is received. Details thereof are the same as those described in detail in Example 2-2-1 described above with reference to FIG. 14.
  • the terminal readjusts the transmission power of the uplink data channel in the slot in which the uplink discontinuous TPC command is received or for all of the plurality of slots allocated based on the uplink data channel resource allocation information for the uplink data channel.
  • the transmission power of the uplink data channel may be readjusted.
  • the uplink discontinuous TPC command may further include information on a readjustment period for adjusting the transmit power of the uplink data channel to the second transmit power control.
  • the terminal may adjust the transmit power of the uplink data channel to the second transmit power control during the readjustment period, and adjust the transmit power of the uplink data channel to the first transmit power control after the readjustment period elapses. Details thereof are the same as those described in detail in Example 2-2-2 described above with reference to FIGS. 15 and 16.
  • 20 is a view showing the configuration of a user terminal according to the second embodiment.
  • the user terminal 2000 includes a receiver 2010, a controller 2020, and a transmitter 2030.
  • the receiver 2010 receives downlink control information, data, and a message from a base station through a corresponding channel.
  • controller 2020 controls the overall operation of the user terminal 2000 according to the method for controlling the transmission power of the uplink data channel in the next-generation wireless network required to perform the above-described present invention.
  • the transmitter 2030 transmits uplink control information, data, and a message to a base station through a corresponding channel.
  • the terminal 2000 for transmitting uplink data includes a transmitter 2030 for transmitting an uplink data channel, a receiver 2010 for receiving an uplink discontinuous TPC command, and an uplink discontinuous TPC command according to a first transmission power control. And a control unit 2020 that adjusts the transmission power of the uplink data channel being transmitted based on the second transmission power control.
  • the receiver 2010 may monitor the uplink discontinuous TPC command based on the monitoring configuration information for the uplink discontinuous TPC command.
  • the monitoring configuration information includes control resource set (CORESET) and search space configuration information for monitoring uplink discontinuous TPC commands, and Radio Network Temporary Identifier (RNTI). Configuration information and monitoring cycle setting information may be included. Specific contents thereof are the same as those described in detail in Example 2-1.
  • the uplink discontinuous TPC command may be indicated through a UE-specific DCI or a UE-group common DCI.
  • the controller 2020 may adjust the transmission power of the uplink data channel to the second transmission power control after a predetermined delay time elapses when the uplink discontinuous TPC command is received. Details thereof are the same as those described in detail in Example 2-2-1 described above with reference to FIG. 14.
  • the control unit 2020 stops the transmission of the uplink data in the slot in which the uplink discontinuous TPC command is received, or all of the plurality of slots allocated based on the uplink data channel resource allocation information for the uplink data channel.
  • the transmit power of the uplink data channel may be adjusted by the second transmit power control.
  • the uplink discontinuous TPC command may further include information on a readjustment period for adjusting the transmit power of the uplink data channel to the second transmit power control.
  • the controller 2020 may adjust the transmit power of the uplink data channel to the second transmit power control during the readjustment period, and adjust the transmit power of the uplink data channel to the first transmit power control after the readjustment period elapses. Details thereof are the same as those described in detail in Example 2-2-2 described above with reference to FIGS. 15 and 16.
  • the present specification proposes an uplink power control method and apparatus for supporting Ultra Reliable and Low Latency Communications (URLLC) and Enhanced Mobile BroadBand (eMBB) services in a next generation / 5G wireless access network.
  • URLLC Ultra Reliable and Low Latency Communications
  • eMBB Enhanced Mobile BroadBand
  • the present specification proposes an uplink power control method for satisfying different service requirements in a wireless mobile communication system such as LTE / LTE-A and NR.
  • a method and apparatus for supporting a plurality of uplink power control procedures according to a service request in one terminal are proposed.
  • NR and LTE / LTE-A system As a service scenario provided by NR and LTE / LTE-A system, it supports eMBB service related data for maximizing data transmission rate and efficient support for URLLC service related data requiring low latency / high reliability. Is increasing in importance.
  • the present specification is a method for satisfying such different reliability requirements, and a method and apparatus for defining and applying different power control procedures according to a corresponding reliability request when transmitting uplink data in one terminal Suggest for
  • a power control method for PUSCH transmission which is an uplink data channel of a terminal defined in LTE / LTE-A and NR systems, dynamic power based on a corresponding upper layer power control parameter or a TPC command according to a single transmission power control equation.
  • the PUSCH transmit power is determined by applying the power control parameter.
  • the transmit power for the PUSCH is determined by the value and the TPC command value transmitted through the PDCCH.
  • the present specification proposes a method and apparatus for applying different power control procedures according to a reliability request for a corresponding PUSCH transmission when a PUSCH is transmitted by any one terminal.
  • FIG. 21 is a diagram illustrating a concept of a reliability request based multiple transmit power control procedure to which Embodiment 3 may be applied.
  • a method and a terminal for transmitting and receiving an uplink data channel to which different power control is applied for each reliability request and for each reliability request are applied to an uplink data channel between the terminal and the base station. It provides a base station corresponding thereto.
  • Example 3-1-1 Application of Multiple Transmission Power Control Parameter Set Based on Reliability Requirements
  • BLER target block error rate
  • the UE sets a parameter set configuration with index j and a PUSCH power control adjustment state with index l.
  • the transmission power P PUSCH , f, c (i, j, qd,) for the PUSCH transmission of any terminal in the PUSCH transmission period i (PUSCH transmission period i) l) was determined by the following equation (1).
  • a set of upper layer parameters and a set of TPC command values indicated by the PDCCH for applying to each parameter of Equation (1) are defined.
  • the power control parameters are defined as a single value or a set of values based on a single target BLER for PUSCH transmission, and a single transmit power equation for PUSCH transmission is applied through the single value or set. .
  • Embodiment 3 is a method of uplink power control to satisfy a plurality of target BLERs for PUSCH transmission, and defines a plurality of different power control parameters or parameter sets for each target BLER for different PUSCHs in one UE. We propose a scheme to apply this independently for each PUSCH transmission.
  • a plurality of power control parameters or parameter sets that are different for each target BLER for a different PUSCH in one UE are determined by the maximum transmit power values P CMAX , f, c (i) and higher layer parameters set for the corresponding UE in Equation 1.
  • TPC command value transmitted by the downlink control information TPC comment included in downlink control information
  • a PUSCH power control adjustment state with index l calculated by a particular higher layer parameter May be one or more than two.
  • the target BLER of 10 -1 to apply to the above-described equation (1) for one of the terminal P CMAX , a value for requesting PUSCH transmission and P CMAX , b value for PUSCH transmission requiring a target BLER of 10 ⁇ 5 may be defined, respectively.
  • the values of P CMAX , a and P CMAX , b are values corresponding to P CMAX, f, and c (i) in the above expression (1).
  • the UE _ O_ P PUSCH, f, c (j) an upper layer for deriving a value defining the set of p0- pusch -alpha-set of parameters, a target BLER 10-1 p0- for PUSCH transmission requiring pusch -alpha-set-a and 10 -5 p0-pusch-alpha- set-b for the PUSCH transmission requiring the target BLER of that it may be defined, respectively.
  • TPC_command_table_a for PUSCH transmission requiring a target BLER of 10 -1
  • TPC_command_table_b for PUSCH transmission requiring a target BLER of 10 -5
  • TPC- PUSCH-RNTI-a and TPC-PUSCH-RNTI-b may be defined, respectively.
  • the above equation (1) is applied in the same manner, but the respective parameter values constituting the above equation (1) are applied.
  • it is defined to determine whether to apply different parameter sets according to the target BLER of the corresponding PUSCH, that is, the target BLER based set a of 10 ⁇ 1 or the target bLER based set b of 10 ⁇ 5 . can do.
  • each UE calculates an arbitrary PUSCH transmission power according to a single transmission power control equation as shown in Equation (1) above, but applies different parameter sets according to the target BLER of the corresponding PUSCH transmission to actually apply the corresponding PUSCH transmission power. It can be defined to derive the transmission power of the PUSCH. That is, one terminal may define and apply an independent transmission power control procedure for each target BLER.
  • this embodiment may be applied regardless of the form of a specific PUSCH transmission power control equation.
  • the present embodiment applies a separate parameter set for each target BLER to only a part of the above parameters for applying to a single PUSCH transmission power control equation, and based on this, a separate power control procedure for each target BLER is performed. In this case, the present embodiment can also be applied.
  • the parameter set (s) according to the target BLER to be applied to the power control equation for PUSCH transmission in an arbitrary terminal is set in the base station and transmitted to the corresponding terminal through higher layer signaling, or explicitly through physical layer control signaling. Can be indicated. Further, the parameter set (s) according to the target BLER to be applied to the power control equation for PUSCH transmission in an arbitrary terminal is implied as a function of PUSCH allocation type (type A or type B), time-domain symbol allocation information, and the like. Can be indicated.
  • Physical layer control signaling may mean, for example, a DCI such as an uplink grant or a TPC command transmitted through a PDCCH.
  • the time-domain symbol assignment information may include, for example, the number of assigned symbols or information of slot based assignment vs. non-slot based assignment.
  • the target BLER value required for PUSCH transmission of the corresponding UE is set in the base station and transmitted through higher layer signaling, or implicitly indicated through the physical layer control signaling or implied as described above, thereby corresponding to the corresponding target BLER. It can be defined to apply a power control parameter set.
  • the physical layer control signaling may be an uplink grant transmitted through the PDCCH or may be a DCI such as a TPC command.
  • a power control parameter set to be applied may be determined according to an RNTI value scrambling to the CRC of the corresponding physical layer control signaling. For example, when MCS-C-RNTI is additionally set in addition to the C-RNTI for a certain terminal, or when a new-RNTI is defined and configured to indicate another power control parameter set, an uplink grant for the terminal.
  • a power control parameter set for power control of a corresponding PUSCH transmission may be determined according to the RNTI value scrambled in the CRC.
  • different power control equations may be defined and applied for each target BLER.
  • Equation (1) For example, the above-described power control procedure based on Equation (1) is applied for PUSCH transmission that satisfies the target BLER of 10 -1 and new for PUSCH transmission that satisfies the target BLER of 10 -5 .
  • the power control equation (2) may be defined to apply it.
  • the corresponding equation (1) or equation (2) may be applied according to the target BLER when the PUSCH is transmitted by an arbitrary terminal.
  • this embodiment can be applied regardless of the specific power control equation, that is, the form of equations (1) and (2).
  • a method for indicating an equation to be applied for a certain PUSCH transmission in a certain terminal the equation to be applied for the corresponding PUSCH transmission in the corresponding terminal Set by the base station and transmitted to the corresponding terminal through higher layer signaling, or explicitly indicating an equation to be applied through physical layer control signaling, or PUSCH resource allocation type (type A or type B) or time-domain symbol allocation Can be defined implicitly as a function such as information.
  • Physical layer control signaling may mean, for example, a DCI such as an uplink grant or a TPC command transmitted through a PDCCH.
  • the time-domain symbol assignment information may include, for example, the number of assigned symbols or information of slot based assignment vs. non-slot based assignment.
  • the target BLER value required for PUSCH transmission of the corresponding UE is set in the base station and transmitted through higher layer signaling, or implicitly indicated through the physical layer control signaling or implied as described above, thereby corresponding to the corresponding target BLER. It can be defined to apply the power control equation.
  • the physical layer control signaling may be an uplink grant transmitted through the PDCCH or may be a DCI such as a TPC command.
  • a power control equation to be applied may be determined according to an RNTI value scrambled to the CRC of the corresponding physical layer control signaling. For example, when MCS-C-RNTI is additionally set in addition to the C-RNTI for a certain terminal, or when a new-RNTI is newly defined and a corresponding new-RNTI is set to indicate another power control parameter set, A power control equation for power control of a corresponding PUSCH transmission may be determined according to the RNTI value scrambled in the CRC of the uplink grant for the UE.
  • a power boosting related parameter compared to the equation (1) may be defined in the form of adding an delta.
  • Equation (1) against power boosting (power boosting) transmission power to a form for adding delta (delta) of the relevant parameter, of the arbitrary terminal PUSCH transmission in PUSCH transmission interval i (PUSCH transmission period i) (P PUSCH, f, c (i, j, qd, l)) may be as shown in Equation (2) below.
  • the corresponding delta value Fixed single delta in defining Is defined or a single delta value by the base station This may be set and transmitted to the terminal through higher layer signaling.
  • the corresponding delta value Another way to define is the corresponding delta value Defined as a table consisting of a plurality of fixed candidate (delta) values for applying, or set to a plurality of candidate delta values for configuring the table to be transmitted to each terminal through higher layer signaling. Can be.
  • the delta value to be applied at each PUSCH transmission May be indicated to the corresponding terminal through physical layer control signaling such as an uplink grant, or may be set through higher layer signaling and transmitted to the terminal.
  • Example 3 it was described that different power control is applied for each reliability request or for each target BLER. Different power controls can be applied regardless of reliability requirements or target BLER.
  • methods for controlling transmission power of an uplink data channel of a terminal and a base station applying different power control regardless of reliability request or target BLER will be described.
  • FIG. 22 is a flowchart illustrating a method of controlling transmission power of an uplink data channel by a terminal in Embodiment 3.
  • FIG. 22 is a flowchart illustrating a method of controlling transmission power of an uplink data channel by a terminal in Embodiment 3.
  • the terminal may include applying different power control to the uplink data channel (S2210) and transmitting an uplink data channel to which different power control is applied. It includes a step (S2220).
  • the transmit power of the uplink data channel may be controlled based on a single transmit power control equation applying a transmit power control parameter or a parameter set. Specific contents thereof are the same as those described in detail in Example 3-1-1.
  • the power control parameter or parameter set may be set in the corresponding terminal through higher layer signaling.
  • the power control parameter or parameter set may be independently transmitted to a corresponding terminal through higher layer signaling, explicitly indicated through physical layer control signaling, or implicitly indicated.
  • a method in which one power control parameter or parameter set is implicitly indicated through physical layer control signaling may be indicated by an RNTI value scrambled in a CRC for physical layer control channel transmission.
  • One of the transmit power control equations for the uplink data channel may further include a power boosting related parameter.
  • One transmission power control equation to be applied to uplink data channel transmission may be set through higher layer signaling or may be explicitly or implicitly indicated through physical layer control signaling.
  • a method in which one power control equation is implicitly indicated through physical layer control signaling may be indicated by an RNTI value scrambled in a CRC for physical layer control channel transmission.
  • FIG. 23 is a flowchart of a method of a base station receiving an uplink data channel in Embodiment 3;
  • the base station in the method of receiving an uplink data channel, explicitly transmits or implicitly instructs the terminal to control information indicating different power control on the downlink data channel (S2310); And receiving an uplink data channel applying different power control to the uplink data channel (S2320).
  • step S2320 of receiving an uplink data channel a transmission power control equation for a single uplink data channel is applied.
  • the power control parameter or parameter set may be set in the corresponding terminal through higher layer signaling.
  • One parameter or parameter set for applying to a single transmission power control equation may be independently transmitted to a corresponding terminal through higher layer signaling, explicitly indicated through physical layer control signaling, or implicitly indicated. .
  • a method in which one power control parameter or parameter set is implicitly indicated through physical layer control signaling may be indicated by an RNTI value scrambled in a CRC for physical layer control channel transmission.
  • step S2320 of receiving an uplink data channel power control of the uplink data channel is performed by applying one of the plurality of transmit power control equations to be applied to the uplink data channel. Can be applied. Specific contents thereof are the same as those described in detail in Example 3-1-2.
  • One of the transmit power control equations for the uplink data channel may further include a power boosting related parameter.
  • One transmission power control equation to be applied to uplink data channel transmission may be set through higher layer signaling or may be explicitly or implicitly indicated through physical layer control signaling.
  • a method in which one power control equation is implicitly indicated through physical layer control signaling may be indicated by an RNTI value scrambled in a CRC for physical layer control channel transmission.
  • 24 is a diagram showing the configuration of a base station according to the third embodiment.
  • the base station 2400 includes a controller 2410, a transmitter 2420, and a receiver 2430.
  • the control unit 2410 is a method for controlling the transmission power of the uplink data channel in the next-generation wireless network required to carry out the above-described invention, applying different power control parameter sets to the transmission power control function according to the target BLER It controls the overall operation of the base station 2400 according to the method characterized in that.
  • the transmitter 2420 and the receiver 2430 are used to transmit and receive signals, messages, and data necessary for carrying out the above-described present invention.
  • the base station 2400 which receives the uplink data channel includes a control unit 2420 and an uplink data channel that explicitly transmits or implicitly instructs the terminal to control information indicating different power control on the uplink data channel. It may include a receiver 2430 for receiving an uplink data channel to which different power control is applied.
  • the controller 2410 applies a transmission power control equation for a single uplink data channel, but applies a transmission power control equation for a single uplink data channel, but applies a plurality to the transmission power control equation. Transmit power of the uplink data channel based on a single transmit power control equation applying a transmit power control parameter or parameter set of one of the plurality of set power control parameters or parameter sets. Can be controlled. Specific contents thereof are the same as those described in detail in Example 3-1-1.
  • the power control parameter or parameter set may be set in the corresponding terminal through higher layer signaling.
  • One power control parameter or parameter set for applying to a single transmission power control equation may be independently transmitted to a corresponding terminal through higher layer signaling, explicitly indicated through physical layer control signaling, or implicitly indicated. Can be.
  • a method in which one power control parameter or parameter set is implicitly indicated through physical layer control signaling may be indicated by an RNTI value scrambled in a CRC for the physical layer control channel transmission.
  • the power control for the uplink data channel may be applied by applying one of the plurality of transmit power control equations to be applied to the uplink data channel. Specific contents thereof are the same as those described in detail in Example 3-1-2.
  • One of the transmit power control equations for the uplink data channel may further include a power boosting related parameter.
  • One transmission power control equation to be applied to uplink data channel transmission may be set through higher layer signaling or may be explicitly or implicitly indicated through physical layer control signaling.
  • the method in which one power control equation is implicitly indicated through physical layer control signaling may be indicated by an RNTI value scrambled in the CRC for physical layer control channel transmission.
  • 25 is a diagram showing the configuration of a user terminal according to the third embodiment.
  • the user terminal 2500 includes a receiver 2510, a controller 2520, and a transmitter 2530.
  • the receiver 2510 receives downlink control information, data, and a message from a base station through a corresponding channel.
  • controller 2520 controls the overall operation of the user terminal 2500 according to the method for controlling the transmission power of the uplink data channel in the next generation wireless network required to perform the above-described present invention.
  • the transmitter 2530 transmits uplink control information, data, and a message to a base station through a corresponding channel.
  • the terminal 2500 for controlling the transmission power of the uplink data channel includes a control unit 2520 for applying different power control to the uplink data channel and a transmitter 2530 for transmitting an uplink data channel to which different power control is applied. It may include.
  • the controller 2520 applies a transmission power control equation for a single uplink data channel, sets a plurality of power control parameters or parameter sets to be applied to the transmission power control equation, and sets the plurality of power control parameters.
  • the transmit power of the uplink data channel may be controlled based on a transmit power control parameter of one of the parameter sets or a single transmit power control equation applying the parameter set. Specific contents thereof are the same as those described in detail in Example 3-1-1.
  • the power control parameter or parameter set may be set in the corresponding terminal through higher layer signaling.
  • One parameter or parameter set for applying to a single transmission power control equation may be independently transmitted to a corresponding terminal through higher layer signaling, explicitly indicated through physical layer control signaling, or implicitly indicated. .
  • a method in which one power control parameter or parameter set is implicitly indicated through physical layer control signaling may be indicated by an RNTI value scrambled in a CRC for physical layer control channel transmission.
  • the controller 2520 defines a plurality of transmission power control equations for applying to the uplink data channel, and applies one of the plurality of transmission power control equations to the uplink data channel. Power control can be applied. Specific contents thereof are the same as those described in detail in Example 3-1-2.
  • One of the transmit power control equations for the uplink data channel may further include a power boosting related parameter.
  • One transmission power control equation to be applied to uplink data channel transmission may be set through higher layer signaling or may be explicitly or implicitly indicated through physical layer control signaling.
  • a method in which one power control equation is implicitly indicated through physical layer control signaling may be indicated by an RNTI value scrambled in a CRC for physical layer control channel transmission.
  • multiplexing uplink data transmission resources between terminals having different latency requirements in a next-generation wireless network efficiently or having different latency requirements The terminal can efficiently control the power of the uplink data channel.
  • Embodiment 2 multiplexing of uplink data channel transmission between terminals is described.
  • Embodiment 3 multiple transmission power control of uplink data channel based on reliability request is described in one terminal.
  • multiplexing of uplink data channel transmission between terminals may be applied, and in the third embodiment, multiple transmission power control of a reliability request based uplink data channel may be applied in one terminal.
  • the above embodiments provide a transmission power control method of an uplink data channel and a transmission operation of a terminal in a next generation wireless network, but the present invention is not limited thereto.
  • the present invention includes a transmission power control method of an uplink data channel and a transmission operation of a terminal in a next generation wireless network.
  • the plurality of uplink transmissions may include PUCCH and PUSCH, PUCCH and PUCCH, PUSCH and SRS, and PUCCH and SRS.
  • the above-described embodiments may be implemented through various means.
  • the embodiments may be implemented by hardware, firmware, software, or a combination thereof.
  • the method according to the embodiments may include one or more Application Specific Integrated Circuits (ASICs), Digital Signal Processors (DSPs), Digital Signal Processing Devices (DSPDs), Programmable Logic Devices (PLDs), FPGAs. (Field Programmable Gate Arrays), a processor, a controller, a microcontroller, a microprocessor, and the like.
  • ASICs Application Specific Integrated Circuits
  • DSPs Digital Signal Processors
  • DSPDs Digital Signal Processing Devices
  • PLDs Programmable Logic Devices
  • FPGAs Field Programmable Gate Arrays
  • a processor a controller, a microcontroller, a microprocessor, and the like.
  • system generally refer to computer-related entity hardware, hardware and software. May mean a combination, software, or running software.
  • the aforementioned components may be, but are not limited to, a process driven by a processor, a processor, a controller, a control processor, an object, an execution thread, a program, and / or a computer.
  • an application running on a controller or processor and a controller or processor can be components.
  • One or more components can reside within a process and / or thread of execution and a component can be located on one system or deployed on more than one system.

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Abstract

La présente invention concerne, selon des modes de réalisation, un procédé et un appareil permettant de multiplexer efficacement des ressources de transmission de données de liaison montante entre des terminaux ayant différentes exigences de latence, ou de commander efficacement la puissance d'un canal de données de liaison montante dans des terminaux ayant des exigences de latence différentes.
PCT/KR2019/003709 2018-03-30 2019-03-29 Procédé et appareil de commande de la puissance de transmission de canal de données de liaison montante WO2019190265A1 (fr)

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CN201980023647.7A CN111989958A (zh) 2018-03-30 2019-03-29 控制上行链路数据信道传输功率的方法和装置

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