WO2023204672A1 - Procédé permettant de transmettre des informations de groupe d'erreurs de temps de transmission pour un terminal pour une mesure de localisation - Google Patents

Procédé permettant de transmettre des informations de groupe d'erreurs de temps de transmission pour un terminal pour une mesure de localisation Download PDF

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Publication number
WO2023204672A1
WO2023204672A1 PCT/KR2023/005471 KR2023005471W WO2023204672A1 WO 2023204672 A1 WO2023204672 A1 WO 2023204672A1 KR 2023005471 W KR2023005471 W KR 2023005471W WO 2023204672 A1 WO2023204672 A1 WO 2023204672A1
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txteg
information
terminal
reporting
report
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PCT/KR2023/005471
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English (en)
Korean (ko)
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황준
이태섭
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삼성전자 주식회사
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
    • 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
    • H04W64/00—Locating users or terminals or network equipment for network management purposes, e.g. mobility management

Definitions

  • the present disclosure relates to a wireless communication system, and more specifically, to a method and apparatus for reporting transmission time error group (TEG)-related information of a UE for location measurement.
  • TAG transmission time error group
  • 5G mobile communication technology defines a wide frequency band to enable fast transmission speeds and new services, and includes sub-6 GHz ('Sub 6GHz') bands such as 3.5 gigahertz (3.5 GHz) as well as millimeter wave (mm) bands such as 28 GHz and 39 GHz. It is also possible to implement it in the ultra-high frequency band ('Above 6GHz') called Wave.
  • 'Sub 6GHz' sub-6 GHz
  • mm millimeter wave
  • Wave ultra-high frequency band
  • 6G mobile communication technology which is called the system of Beyond 5G
  • Terra is working to achieve a transmission speed that is 50 times faster than 5G mobile communication technology and an ultra-low delay time that is reduced to one-tenth. Implementation in Terahertz bands (e.g., 95 GHz to 3 THz) is being considered.
  • ultra-wideband services enhanced Mobile BroadBand, eMBB
  • ultra-reliable low-latency communications URLLC
  • massive machine-type communications mMTC
  • numerology support multiple subcarrier interval operation, etc.
  • dynamic operation of slot format initial access technology to support multi-beam transmission and broadband
  • definition and operation of BWP Band-Width Part
  • New channel coding methods such as LDPC (Low Density Parity Check) codes for data transmission and Polar Code for highly reliable transmission of control information
  • L2 pre-processing L2 pre-processing
  • dedicated services specialized for specific services. Standardization of network slicing, etc., which provides networks, has been carried out.
  • V2X Vehicle-to-Everything
  • NR-U New Radio Unlicensed
  • UE Power Saving NR terminal low power consumption technology
  • NTN Non-Terrestrial Network
  • IAB provides a node for expanding the network service area by integrating intelligent factories (Industrial Internet of Things, IIoT) to support new services through linkage and convergence with other industries, and wireless backhaul links and access links.
  • Intelligent factories Intelligent Internet of Things, IIoT
  • Mobility Enhancement including Conditional Handover and DAPS (Dual Active Protocol Stack) handover
  • 2-step Random Access (2-step RACH for simplification of random access procedures)
  • Standardization in the field of wireless interface architecture/protocol for technologies such as NR is also in progress
  • 5G baseline for incorporating Network Functions Virtualization (NFV) and Software-Defined Networking (SDN) technology Standardization in the field of system architecture/services for architecture (e.g., Service based Architecture, Service based Interface) and Mobile Edge Computing (MEC), which provides services based on the location of the terminal, is also in progress.
  • NFV Network Functions Virtualization
  • SDN Software-Defined Networking
  • FD-MIMO full dimensional MIMO
  • array antennas to ensure coverage in the terahertz band of 6G mobile communication technology.
  • multi-antenna transmission technology such as Large Scale Antenna, metamaterial-based lens and antenna to improve coverage of terahertz band signals, high-dimensional spatial multiplexing technology using OAM (Orbital Angular Momentum), RIS ( In addition to Reconfigurable Intelligent Surface technology, Full Duplex technology, satellite, and AI (Artificial Intelligence) to improve the frequency efficiency of 6G mobile communication technology and system network are utilized from the design stage and end-to-end.
  • SRS sounding reference signal
  • TAG timing error groups
  • the present disclosure proposes a method for efficiently transmitting information related to the terminal transmission timing error group (TxTEG), among information related to terminal location measurement, to a base station.
  • TxTEG terminal transmission timing error group
  • the present disclosure seeks to provide an apparatus and method that can effectively provide services in a wireless communication system.
  • a method performed by a terminal in a wireless communication system includes receiving a radio resource control (RRC) reconfiguration message from a base station, the RRC reconfiguration message Includes information indicating whether reporting of TxTEG related information is a one-shot report or periodic reporting, and transmitting the TxTEG related information to the base station, wherein the periodic reporting is performed based on the information. If set, the TxTEG association information may include all changes to the TxTEG during the reporting period.
  • RRC radio resource control
  • a method performed by a base station in a wireless communication system includes transmitting an RRC reset message to a terminal, the RRC reset message indicating whether the report of TxTEG related information is a one-time report or a periodic report. and receiving the TxTEG association information from the terminal, wherein when the periodic reporting is set based on the information, the TxTEG association information may include all changes in the TxTEG during the reporting period. there is.
  • a terminal of a wireless communication system receives an RRC reset message from a transceiver and a base station, and the RRC reset message includes information indicating whether the report of TxTEG related information is a one-time report or a periodic report.
  • a control unit configured to transmit the TxTEG association information to the base station, and when the periodic reporting is set based on the information, the TxTEG association information may include all changes in the TxTEG during the reporting period. there is.
  • the base station of the wireless communication system transmits an RRC reset message to the transceiver and the terminal, and the RRC reset message includes information indicating whether the report of TxTEG related information is a one-time report or a periodic report. and a control unit configured to receive the TxTEG association information from the terminal, and when the periodic reporting is set based on the information, the TxTEG association information may include all changes in the TxTEG during the reporting period. there is.
  • the terminal when transmitting a positioning SRS signal to the network, the terminal may report the structure of transmission timing error information within the terminal in a manner that allows addition/modification/removal of the existing reported information.
  • the terminal can transmit only information that has changed based on existing transmission information, thereby reducing the size of data that the terminal must transmit.
  • FIG. 1 is a diagram illustrating the structure of an LTE system according to an embodiment of the present disclosure.
  • Figure 2 is a diagram showing the wireless protocol structure of an LTE system according to an embodiment of the present disclosure.
  • FIG. 3 is a diagram illustrating the structure of a next-generation mobile communication system according to an embodiment of the present disclosure.
  • Figure 4 is a diagram showing the wireless protocol structure of a next-generation mobile communication system according to an embodiment of the present disclosure.
  • Figure 5 is a block diagram showing the internal structure of a terminal according to an embodiment of the present disclosure.
  • Figure 6 is a block diagram showing the configuration of a base station according to an embodiment of the present disclosure.
  • Figure 7 is a flowchart of terminal reporting and use of the information according to an embodiment of the present disclosure.
  • Figure 8 shows a signaling procedure between a terminal and a base station according to an embodiment of the present disclosure.
  • the present disclosure uses terms and names defined in the 3rd Generation Partnership Project (3GPP) Long Term Evolution (LTE) standard.
  • 3GPP 3rd Generation Partnership Project
  • LTE Long Term Evolution
  • each block of the processing flow diagrams and combinations of the flow diagram diagrams can be performed by computer program instructions.
  • These computer program instructions can be mounted on a processor of a general-purpose computer, special-purpose computer, or other programmable data processing equipment, so that the instructions performed through the processor of the computer or other programmable data processing equipment are described in the flow chart block(s). It creates the means to perform functions.
  • These computer program instructions may also be stored in computer-usable or computer-readable memory that can be directed to a computer or other programmable data processing equipment to implement a function in a particular manner, so that the computer-usable or computer-readable memory It is also possible to produce manufactured items containing instruction means that perform the functions described in the flowchart block(s).
  • Computer program instructions can also be mounted on a computer or other programmable data processing equipment, so that a series of operational steps are performed on the computer or other programmable data processing equipment to create a process that is executed by the computer, thereby generating a process that is executed by the computer or other programmable data processing equipment. Instructions that perform processing equipment may also provide steps for executing the functions described in the flow diagram block(s).
  • each block may represent a module, segment, or portion of code that includes one or more executable instructions for executing specified logical function(s).
  • each block may represent a module, segment, or portion of code that includes one or more executable instructions for executing specified logical function(s).
  • the term ' ⁇ unit' used in this embodiment refers to software or hardware components such as FPGA (Field Programmable Gate Array) or ASIC (Application Specific Integrated Circuit), and ' ⁇ unit' performs certain roles. do.
  • ' ⁇ part' is not limited to software or hardware.
  • the ' ⁇ part' may be configured to reside in an addressable storage medium and may be configured to reproduce on one or more processors. Therefore, as an example, ' ⁇ part' refers to components such as software components, object-oriented software components, class components, and task components, processes, functions, properties, and procedures. , subroutines, segments of program code, drivers, firmware, microcode, circuitry, data, databases, data structures, tables, arrays, and variables.
  • components and 'parts' may be combined into a smaller number of components and 'parts' or may be further separated into additional components and 'parts'. Additionally, components and 'parts' may be implemented to regenerate one or more CPUs within a device or a secure multimedia card. Additionally, in an embodiment, ' ⁇ part' may include one or more processors.
  • the terminal may refer to a MAC entity within the terminal that exists for each Master Cell Group (MCG) and Secondary Cell Group (SCG), which will be described later.
  • MCG Master Cell Group
  • SCG Secondary Cell Group
  • the base station is the entity that performs resource allocation for the terminal and may be at least one of gNode B, eNode B, Node B, BS (Base Station), wireless access unit, base station controller, or node on the network.
  • a terminal may include a UE (User Equipment), MS (Mobile Station), a cellular phone, a smartphone, a computer, or a multimedia system capable of performing communication functions. Of course, it is not limited to the above examples.
  • the present disclosure is applicable to 3GPP NR (5th generation mobile communication standard).
  • this disclosure provides intelligent services (e.g., smart home, smart building, smart city, smart car or connected car, healthcare, digital education, retail, security and safety-related services) based on 5G communication technology and IoT-related technology. etc.) can be applied.
  • eNB may be used interchangeably with gNB for convenience of explanation. That is, a base station described as an eNB may represent a gNB.
  • the term terminal can refer to mobile phones, NB-IoT devices, sensors, as well as other wireless communication devices.
  • Wireless communication systems have moved away from providing early voice-oriented services to, for example, 3GPP's HSPA (High Speed Packet Access), LTE (Long Term Evolution or E-UTRA (Evolved Universal Terrestrial Radio Access)), and LTE-Advanced.
  • Broadband wireless that provides high-speed, high-quality packet data services such as communication standards such as (LTE-A), LTE-Pro, 3GPP2's High Rate Packet Data (HRPD), UMB (Ultra Mobile Broadband), and IEEE's 802.16e. It is evolving into a communication system.
  • the LTE system uses Orthogonal Frequency Division Multiplexing (OFDM) in the downlink (DL), and Single Carrier Frequency Division Multiple Access (SC-FDMA) in the uplink (UL).
  • OFDM Orthogonal Frequency Division Multiplexing
  • SC-FDMA Single Carrier Frequency Division Multiple Access
  • Uplink refers to a wireless link in which a terminal (UE; User Equipment or MS; Mobile Station) transmits data or control signals to a base station (eNode B or BS; Base Station), and downlink refers to a wireless link in which the base station transmits data or control signals to the terminal. It refers to a wireless link that transmits signals.
  • the multiple access method described above differentiates each user's data or control information by allocating and operating the time-frequency resources to carry data or control information for each user so that they do not overlap, that is, orthogonality is established. .
  • Enhanced Mobile BroadBand eMBB
  • massive Machine Type Communication mMTC
  • Ultra Reliability Low Latency Communication URLLC
  • eMBB may aim to provide more improved data transmission rates than those supported by existing LTE, LTE-A, or LTE-Pro.
  • eMBB must be able to provide a peak data rate of 20Gbps in the downlink and 10Gbps in the uplink from the perspective of one base station.
  • the 5G communication system may need to provide the maximum transmission rate and at the same time provide an increased user perceived data rate.
  • the 5G communication system may require improvements in various transmission and reception technologies, including more advanced multi-antenna (MIMO; Multi Input Multi Output) transmission technology.
  • MIMO Multi Input Multi Output
  • the 5G communication system uses a frequency bandwidth wider than 20 MHz in the 3 to 6 GHz or above 6 GHz frequency band, meeting the requirements of the 5G communication system. Data transfer speed can be satisfied.
  • mMTC is being considered to support application services such as Internet of Things (IoT) in 5G communication systems.
  • IoT Internet of Things
  • mMTC may require support for access to a large number of terminals within a cell, improved coverage of terminals, improved battery time, and reduced terminal costs.
  • the Internet of Things provides communication functions by attaching various sensors and various devices, it must be able to support a large number of terminals (for example, 1,000,000 terminals/km2) within a cell.
  • terminals supporting mMTC are likely to be located in shadow areas that cannot be covered by cells, such as the basement of a building, so wider coverage may be required compared to other services provided by the 5G communication system.
  • Terminals that support mMTC must be composed of low-cost terminals, and since it is difficult to frequently replace the terminal's battery, a very long battery life time, such as 10 to 15 years, may be required.
  • URLLC Ultra-low latency
  • ultra-reliability very high reliability
  • a service supporting URLLC must satisfy an air interface latency of less than 0.5 milliseconds and may have a packet error rate of less than 10-5.
  • the 5G system must provide a smaller Transmit Time Interval (TTI) than other services, and at the same time, a design that requires allocating wide resources in the frequency band to ensure the reliability of the communication link. Specifications may be required.
  • TTI Transmit Time Interval
  • the three services considered in the above-described 5G communication system namely eMBB, URLLC, and mMTC, can be multiplexed and transmitted in one system.
  • different transmission/reception techniques and transmission/reception parameters can be used between services to satisfy the different requirements of each service.
  • the above-described mMTC, URLLC, and eMBB are only examples of different service types, and the service types to which this disclosure is applied are not limited to the above-described examples.
  • embodiments of the present invention will be described using LTE, LTE-A, LTE Pro or 5G (or NR, next-generation mobile communication) systems as examples, but the present invention can also be applied to other communication systems with similar technical background or channel type. Examples of may be applied.
  • embodiments of the present invention may be applied to other communication systems through some modifications without significantly departing from the scope of the present invention at the discretion of a person with skilled technical knowledge.
  • FIG. 1 is a diagram illustrating the structure of an LTE system according to an embodiment of the present disclosure.
  • the radio access network of the LTE system includes a next-generation base station (Evolved Node B, hereinafter referred to as ENB, Node B or base station) (1-05, 1-10, 1-15, 1-20) and a mobility management entity ( It may consist of Mobility Management Entity (MME) (1-25) and S-GW (1-30, Serving-Gateway).
  • ENB Next-generation base station
  • MME Mobility Management Entity
  • S-GW Serving-Gateway
  • UE or terminal User equipment
  • ENBs 1-05 to 1-20 may correspond to the existing Node B of the UMTS system.
  • the ENB is connected to the UE (1-35) through a wireless channel and can perform a more complex role than the existing Node B.
  • all user traffic including real-time services such as VoIP (Voice over IP) through the Internet protocol, can be serviced through a shared channel. Therefore, a device that collects status information such as buffer status, available transmission power status, and channel status of UEs and performs scheduling may be needed, and the ENB (1-05 to 1-20) may be responsible for this.
  • One ENB can typically control multiple cells.
  • the LTE system can use Orthogonal Frequency Division Multiplexing (OFDM) as a wireless access technology in, for example, a 20 MHz bandwidth.
  • OFDM Orthogonal Frequency Division Multiplexing
  • the ENB can apply the Adaptive Modulation & Coding (AMC) method, which determines the modulation scheme and channel coding rate according to the channel status of the terminal.
  • AMC Adaptive Modulation & Coding
  • the S-GW (1-30) is a device that provides data bearers, and can create or remove data bearers under the control of the MME (1-25).
  • the MME is a device that handles various control functions as well as mobility management functions for the terminal and can be connected to multiple base stations.
  • Figure 2 is a diagram showing the wireless protocol structure of an LTE system according to an embodiment of the present disclosure.
  • the wireless protocols of the LTE system are Packet Data Convergence Protocol (PDCP) (2-05, 2-40) and Radio Link Control (RLC) (Radio Link Control, RLC) in the terminal and ENB, respectively. 2-10, 2-35), Medium Access Control (MAC) (2-15, 2-30), and physical layer (2-20, 2-25).
  • PDCP Packet Data Convergence Protocol
  • RLC Radio Link Control
  • MAC Medium Access Control
  • PDCP can be responsible for operations such as IP header compression/restoration.
  • the main functions of PDCP can be summarized as follows. Of course, it is not limited to the examples below.
  • Radio Link Control (2-10, 2-35) can perform ARQ operations, etc. by reconfiguring the PDCP Packet Data Unit (PDU) to an appropriate size.
  • PDU Packet Data Unit
  • RLC SDU deletion function (RLC SDU discard (only for UM and AM data transfer)
  • MAC (2-15, 2-30) is connected to several RLC layer devices configured in one terminal, and performs an operation of multiplexing RLC PDUs to MAC PDUs and demultiplexing RLC PDUs from MAC PDUs. can do.
  • the main functions of MAC can be summarized as follows. Of course, this is not limited to the examples below.
  • the physical layer (2-20, 2-25) channel-codes and modulates the upper layer data, creates OFDM symbols and transmits them to the wireless channel, or demodulates the OFDM symbols received through the wireless channel and transmits them to the channel. You can decode and transmit it to the upper layer.
  • FIG. 3 is a diagram illustrating the structure of a next-generation mobile communication system according to an embodiment of the present disclosure.
  • the radio access network of the next-generation mobile communication system includes a next-generation base station (New Radio Node B, hereinafter referred to as NR gNB or NR base station) (3-10) and a next-generation wireless core network (New Radio Core). Network, NR CN) (3-05).
  • the next-generation wireless user equipment (New Radio User Equipment, NR UE or UE) (3-15) can access an external network through NR gNB (3-10) and NR CN (3-05).
  • NR gNB may correspond to an eNB (Evolved Node B) of the existing LTE system.
  • NR gNB is connected to NR UE (3-15) through a wireless channel and can provide superior services than the existing Node B.
  • a device may be needed to perform scheduling by collecting status information such as buffer status, available transmission power status, and channel status of UEs, and the NR NB 3-10 may be responsible for this.
  • One NR gNB can control multiple cells.
  • beamforming technology may be additionally used using Orthogonal Frequency Division Multiplexing (OFDM) as a wireless access technology.
  • OFDM Orthogonal Frequency Division Multiplexing
  • the NR gNB uses an Adaptive Modulation & Coding (AMC) method that determines the modulation scheme and channel coding rate according to the channel status of the terminal.
  • AMC Adaptive Modulation & Coding
  • NR CN (3-05) can perform functions such as mobility support, bearer setup, and QoS setup.
  • NR CN (3-05) is a device responsible for various control functions as well as mobility management functions for the terminal and can be connected to multiple base stations.
  • the next-generation mobile communication system can be linked to the existing LTE system, and NR CN can be connected to MME (3-25) through a network interface.
  • the MME can be connected to an existing base station, eNB (3-30).
  • Figure 4 is a diagram showing the wireless protocol structure of a next-generation mobile communication system according to an embodiment of the present disclosure.
  • the wireless protocols of the next-generation mobile communication system are NR Service Data Adaptation Protocol (SDAP) (4-01, 4-45) and NR PDCP (4-05, 4-05) in the terminal and NR base station, respectively. 4-40), NR RLC (4-10, 4-35), NR MAC (4-15, 4-30), and NR PHY layer (4-20, 4-25).
  • SDAP Service Data Adaptation Protocol
  • NR PDCP (4-05, 4-05) in the terminal and NR base station, respectively.
  • 4-40 NR RLC (4-10, 4-35), NR MAC (4-15, 4-30), and NR PHY layer (4-20, 4-25).
  • the main functions of NR SDAP (4-01, 4-45) may include some of the following functions. However, it is not limited to the examples below.
  • the terminal uses a Radio Resource Control (RRC) message to determine whether to use the header of the SDAP layer device for each PDCP layer device, for each bearer, or for each logical channel, or whether to use the function of the SDAP layer device. can be set.
  • RRC Radio Resource Control
  • the terminal sets a 1-bit indicator (NAS reflective QoS) reflecting the Non-Access Stratum (NAS) QoS (Quality of Service) of the SDAP header and the access layer (Access Stratum).
  • NAS Non-Access Stratum
  • AS QoS reflection setting 1-bit indicator (AS reflective QoS) can indicate that the terminal can update or reset mapping information for uplink and downlink QoS flows and data bearers.
  • the SDAP header may include QoS flow ID information indicating QoS.
  • QoS information can be used as data processing priority, scheduling information, etc. to support smooth service.
  • the main functions of NR PDCP (4-05, 4-40) may include some of the following functions. However, it is not limited to the examples below.
  • the reordering function of the NR PDCP device may mean the function of reordering PDCP PDUs received from the lower layer in order based on PDCP sequence number (SN).
  • the reordering function of the NR PDCP device may include a function of delivering data to a higher layer in the reordered order, or may include a function of directly delivering data without considering the order, and may include a function of transmitting data directly without considering the order, and reordering the data may cause loss. It may include a function to record lost PDCP PDUs, it may include a function to report the status of lost PDCP PDUs to the transmitter, and it may include a function to request retransmission of lost PDCP PDUs. there is.
  • the main functions of NR RLC (4-10, 4-35) may include some of the following functions. However, it is not limited to the examples below.
  • the in-sequence delivery function of the NR RLC device may mean the function of delivering RLC SDUs received from the lower layer to the upper layer in order.
  • the in-sequence delivery function of the NR RLC device may include the function of reassembling and delivering it.
  • the in-sequence delivery function of the NR RLC device may include a function to rearrange the received RLC PDUs based on the RLC SN (sequence number) or PDCP SN (sequence number), and rearrange the order to prevent loss. It may include a function to record lost RLC PDUs, it may include a function to report the status of lost RLC PDUs to the transmitting side, and it may include a function to request retransmission of lost RLC PDUs. there is.
  • the in-sequence delivery function of the NR RLC device may include a function of delivering only the RLC SDUs up to the lost RLC SDU in order when there is a lost RLC SDU to the upper layer.
  • the in-sequence delivery function of the NR RLC device may include a function of delivering all RLC SDUs received before the timer starts to the upper layer in order if a predetermined timer expires even if there are lost RLC SDUs. there is.
  • the in-sequence delivery function of the NR RLC device may include a function of delivering all RLC SDUs received to date to the upper layer in order if a predetermined timer expires even if there are lost RLC SDUs.
  • the NR RLC device can process RLC PDUs in the order they are received and deliver them to the NR PDCP device, regardless of the order of the sequence number (out-of sequence delivery).
  • the NR RLC device When the NR RLC device receives a segment, it can receive segments stored in a buffer or to be received later, reconstruct them into one complete RLC PDU, and then transmit it to the NR PDCP device.
  • the NR RLC layer may not include a concatenation function, and may perform the function in the NR MAC layer or replace it with the multiplexing function of the NR MAC layer.
  • the out-of-sequence delivery function of the NR RLC device may refer to the function of directly delivering RLC SDUs received from a lower layer to the upper layer regardless of their order.
  • the out-of-sequence delivery function of the NR RLC device may include a function of reassembling and delivering when one RLC SDU is originally received by being divided into several RLC SDUs.
  • the out-of-sequence delivery function of the NR RLC device may include a function of storing the RLC SN or PDCP SN of received RLC PDUs, sorting the order, and recording lost RLC PDUs.
  • the NR MAC (4-15, 4-30) may be connected to multiple NR RLC layer devices configured in one terminal, and the main functions of the NR MAC may include some of the following functions. . However, it is not limited to the examples below.
  • the NR PHY layer (4-20, 4-25) channel-codes and modulates the upper layer data, creates OFDM symbols and transmits them to the wireless channel, or demodulates and channel decodes the OFDM symbols received through the wireless channel and transmits them to the upper layer.
  • the transfer operation can be performed.
  • Figure 5 is a block diagram showing the internal structure of a terminal according to an embodiment of the present disclosure.
  • the terminal may include an RF (Radio Frequency) processing unit 5-10, a baseband processing unit 5-20, a storage unit 5-30, and a control unit 5-40. there is. Of course, it is not limited to the above example, and the terminal may include fewer or more components than those shown in FIG. 5.
  • RF Radio Frequency
  • the RF processing unit 5-10 can perform functions for transmitting and receiving signals through a wireless channel, such as band conversion and amplification of signals. That is, the RF processing unit 5-10 up-converts the baseband signal provided from the baseband processing unit 5-20 into an RF band signal and transmits it through an antenna, and converts the RF band signal received through the antenna into a baseband signal. It can be down-converted into a signal.
  • the RF processing unit 5-10 may include a transmission filter, a reception filter, an amplifier, a mixer, an oscillator, a digital to analog convertor (DAC), an analog to digital convertor (ADC), etc. there is. Of course, it is not limited to the above examples. In FIG.
  • the RF processing unit 5-10 may include a plurality of RF chains. Additionally, the RF processing unit 5-10 can perform beamforming. For beamforming, the RF processing unit 5-10 can adjust the phase and size of each signal transmitted and received through a plurality of antennas or antenna elements. Additionally, the RF processing unit 5-10 can perform MIMO (Multi Input Multi Output) and can receive multiple layers when performing a MIMO operation.
  • MIMO Multi Input Multi Output
  • the baseband processing unit 5-20 performs a conversion function between baseband signals and bit strings according to the physical layer specifications of the system. For example, when transmitting data, the baseband processing unit 5-20 generates complex symbols by encoding and modulating the transmission bit stream. Additionally, when receiving data, the baseband processing unit 5-20 can restore the received bit stream by demodulating and decoding the baseband signal provided from the RF processing unit 5-10. For example, when following the OFDM (orthogonal frequency division multiplexing) method, when transmitting data, the baseband processing unit 5-20 generates complex symbols by encoding and modulating the transmission bit string, and maps the complex symbols to subcarriers.
  • OFDM orthogonal frequency division multiplexing
  • OFDM symbols are configured through IFFT (inverse fast Fourier transform) operation and CP (cyclic prefix) insertion.
  • the baseband processing unit 5-20 divides the baseband signal provided from the RF processing unit 5-10 into OFDM symbol units, and signals mapped to subcarriers through FFT (fast Fourier transform). After restoring the received bit string, the received bit string can be restored through demodulation and decoding.
  • the baseband processing unit 5-20 and the RF processing unit 5-10 transmit and receive signals as described above.
  • the baseband processing unit 5-20 and the RF processing unit 5-10 may be referred to as a transmitting unit, a receiving unit, a transceiving unit, or a communication unit.
  • at least one of the baseband processing unit 5-20 and the RF processing unit 5-10 may include a plurality of communication modules to support a plurality of different wireless access technologies.
  • at least one of the baseband processing unit 5-20 and the RF processing unit 5-10 may include different communication modules to process signals in different frequency bands.
  • different wireless access technologies may include wireless LAN (eg, IEEE 802.11), cellular network (eg, LTE), etc.
  • the different frequency bands may include a super high frequency (SHF) (e.g., 2.NRHz, NRhz) band and a millimeter wave (e.g., 60GHz) band.
  • SHF super high frequency
  • the terminal can transmit and receive signals with the base station using the baseband processing unit 5-20 and the RF processing unit 5-10, and the signals may include control information and data.
  • the storage unit 5-30 stores data such as basic programs, applications, and setting information for operation of the terminal.
  • the storage unit 5-30 may store information related to a second access node that performs wireless communication using a second wireless access technology. Additionally, the storage unit 5-30 provides stored data upon request from the control unit 5-40.
  • the storage unit 5-30 may be composed of a storage medium such as ROM, RAM, hard disk, CD-ROM, and DVD, or a combination of storage media. Additionally, the storage unit 5-30 may be composed of a plurality of memories.
  • the control unit 5-40 controls the overall operations of the terminal. For example, the control unit 5-40 transmits and receives signals through the baseband processing unit 5-20 and the RF processing unit 5-10. Additionally, the control unit 5-40 writes and reads data into the storage unit 5-40.
  • the control unit 5-40 may include at least one processor.
  • the control unit 5-40 may include a communication processor (CP) that performs control for communication and an application processor (AP) that controls upper layers such as application programs. Additionally, at least one component within the terminal may be implemented with one chip.
  • Figure 6 is a block diagram showing the configuration of a base station according to an embodiment of the present disclosure.
  • the base station may include an RF processing unit 6-10, a baseband processing unit 6-20, a backhaul communication unit 6-30, a storage unit 6-40, and a control unit 6-50. You can. Of course, it is not limited to the above example, and the base station may include fewer or more configurations than the configuration shown in FIG. 6.
  • the RF processing unit 6-10 can perform functions for transmitting and receiving signals through a wireless channel, such as band conversion and amplification of signals. That is, the RF processing unit 6-10 upconverts the baseband signal provided from the baseband processing unit 6-20 into an RF band signal and transmits it through an antenna, and converts the RF band signal received through the antenna into a baseband signal. Downconvert it to a signal.
  • the RF processing unit 6-10 may include a transmission filter, a reception filter, an amplifier, a mixer, an oscillator, a DAC, an ADC, etc. In Figure 6, only one antenna is shown, but the RF processing unit 6-10 may be equipped with a plurality of antennas.
  • the RF processing unit 6-10 may include a plurality of RF chains. Additionally, the RF processing unit 6-10 can perform beamforming. For beamforming, the RF processing unit 6-10 can adjust the phase and size of each signal transmitted and received through a plurality of antennas or antenna elements. The RF processing unit can perform downward MIMO operation by transmitting one or more layers.
  • the baseband processing unit 6-20 can perform a conversion function between baseband signals and bit strings according to the physical layer standard of the first wireless access technology. For example, when transmitting data, the baseband processing unit 6-20 may generate complex symbols by encoding and modulating the transmission bit stream. Additionally, when receiving data, the baseband processing unit 6-20 can restore the received bit stream by demodulating and decoding the baseband signal provided from the RF processing unit 6-10. For example, when following the OFDM method, when transmitting data, the baseband processing unit 6-20 generates complex symbols by encoding and modulating the transmission bit string, maps the complex symbols to subcarriers, and performs IFFT operation and OFDM symbols are configured through CP insertion.
  • the baseband processing unit 6-20 when receiving data, divides the baseband signal provided from the RF processing unit 6-10 into OFDM symbols, restores the signals mapped to subcarriers through FFT operation, and then , the received bit string can be restored through demodulation and decoding.
  • the baseband processing unit 6-20 and the RF processing unit 6-10 can transmit and receive signals as described above. Accordingly, the baseband processing unit 6-20 and the RF processing unit 6-10 may be referred to as a transmitting unit, a receiving unit, a transceiving unit, a communication unit, or a wireless communication unit.
  • the base station can transmit and receive signals with the terminal using the baseband processing unit 6-20 and the RF processing unit 6-10, and the signals can include control information and data.
  • the backhaul communication unit 6-30 provides an interface for communicating with other nodes in the network.
  • the backhaul communication unit 6-30 converts a bit string transmitted from the main base station to another node, for example, an auxiliary base station, a core network, etc., into a physical signal, and converts a physical signal received from another node into a bit string. can do.
  • the backhaul communication unit 6-30 may be included in the communication unit.
  • the storage unit 6-40 stores data such as basic programs, application programs, and setting information for operation of the base station.
  • the storage unit 6-40 can store information about bearers assigned to the connected terminal, measurement results reported from the connected terminal, etc. Additionally, the storage unit 6-40 may store information that serves as a criterion for determining whether to provide or suspend multiple connections to the terminal. Additionally, the storage unit 6-40 provides stored data upon request from the control unit 6-50.
  • the storage unit 6-40 may be composed of a storage medium such as ROM, RAM, hard disk, CD-ROM, and DVD, or a combination of storage media. Additionally, the storage unit 6-40 may be composed of a plurality of memories. According to some embodiments, the storage unit 6-40 may store a program for performing the buffer status reporting method according to the present disclosure.
  • the control unit 6-50 controls the overall operations of the base station. For example, the control unit 6-50 transmits and receives signals through the baseband processing unit 6-20 and the RF processing unit 6-10 or through the backhaul communication unit 6-30. Additionally, the control unit 6-50 writes and reads data into the storage unit 6-40.
  • the control unit 6-50 may include at least one processor. Additionally, at least one component of the base station may be implemented with one chip.
  • Figure 7 is a flowchart of terminal reporting and use of the information according to an embodiment of the present disclosure.
  • LMF location management function
  • the LMF can acquire TRP information for UL-TDOA (uplink time difference of arrival) location measurement from the serving gNB and nearby TRPs.
  • UL-TDOA uplink time difference of arrival
  • the LMF may transmit a NRPPa (NR positioning protocol A) TRP information request message to the gNB(/TRP).
  • the request message may include information indicating which TRP information the LMF is requesting.
  • the gNB(/TRP) that has received the request message may include the requested TRP information in the NRPPa TRP information response message and transmit it to the LMF. If the gNB cannot provide TRP information, it may transmit a TRP information failure message indicating failure.
  • NRPPa NR positioning protocol A
  • the LMF may request the positioning capability of the target device using the LPP (LTE positioning protocol) Capability Transfer procedure.
  • the target device in FIG. 7 may be a terminal.
  • Step 2 To request UL-SRS configuration information for the target device, the LMF may transmit an NRPPa positioning information request message to the serving gNB (/TRP).
  • the serving gNB /TRP
  • the serving gNB may determine available resources (or resource sets) for UL-SRS.
  • the serving gNB may configure UL-SRS resources (or resource sets) to the target device.
  • the serving gNB may request UE TxTEG (transmission timing error group) association information from the target device and receive UE TxTEG association information from the target device.
  • the UE may periodically report UE TxTEG association information to the gNB (/TRP), in which case the UE TxTEG association information may include all changes in the UE TxTEG during the reporting period.
  • the target device may report UE TxTEG association information including all UE TxTEGs at the timing at which the gNB(/TRP) request was received in a one-shot manner.
  • the message exchange in step 3b may be conveyed via RRC signaling.
  • the serving gNB may provide UL information to the LMF.
  • the UL information may be included in the NRPPa positioning information response message.
  • the LMF can request activation of UL SRS transmission by sending a NRPPa positioning activation request message to the serving gNB (/TRP) of the target device.
  • the message may include an indication of a set of UL-SRS resources to be activated, and includes information indicating a spatial relationship for the semi-persistent UL-SRS resources to be activated. can do.
  • the message may include an aperiodic SRS resource trigger list indicating the UL-SRS resource to be activated.
  • GNB(/TRP) activates UL-SRS transmission, and if UL-SRS is successfully activated, it can transmit an NRPPa positioning activation response message to LMF.
  • the target device may start UL-SRS transmission according to the time domain behavior of UL-SRS resource configuration.
  • LMF may provide UL-SRS configuration to selected gNBs.
  • the UL-SRS setting may be included in the NRPPa measurement request message.
  • the message may contain all information necessary to enable gNBs/TRPs to perform UL measurements.
  • the measurement request message may include at least one of the information in Table 1.
  • TRP ID cell ID of the TRP to receive UL-SRS UL-SRS settings UL timing information together with timing uncertainty, for reception of SRS by candidate TRPs Report characteristics for the measurements
  • Measurement Quantities Measurement periodicity Measurement beam information request
  • Each gNB (/TRP) configured in step 6 can measure UL-SRS transmission from the target device (e.g., UL-TDOA measurement).
  • Each gNB(/TRP) can report the UL-SRS measurement results to the LMF.
  • the UL-SRS measurement result may be included in an NRPPa measurement response message and transmitted to the LMF.
  • the UL-SRS measurement result may include at least one of the information in Table 2.
  • measurement results NR cell global identity (NCGI) and TRP ID of measurements UL-RTOA UL-SRS-RSRP Timestamp of measurement Quality for each measurement Beam information for each measurement
  • the LMF may transmit an NRPPa positioning deactivation message to the serving gNB (/TRP).
  • the UE TxTEG association information transmitted in step 3b indicates the association between TEG and SRS.
  • TEG is a timing error group, which means a resource group among the UL SRSs whose timing delay is similar within a certain margin value, and this can be determined by the terminal by implementation of the terminal. That is, the UL SRS associated with one TEG can perform UL TDOA-related measurements assuming that the transmission time is similar or the same in the TRP/gNB receiving it.
  • the LMF may deliver a message requesting measurement of UL SRS resources included in the same TEG to the gNB/TRP, etc. in step 6.
  • the LMF may deliver a message requesting measurement of UL SRS resources included in the same TEG to the gNB/TRP, etc. in step 6.
  • the reporting format of UE TxTEG information can be set in the RRCReconfiguration message containing the SRS configuration information.
  • the target device or terminal that receives this setting can report UE TxTEG information to the serving gNB (/TRP). This report may be reported as an RRC message.
  • the serving gNB (/TRP) sets the reporting format of UE TxTEG information, it may request one-shot reporting or periodic reporting.
  • the target device may report UE TxTEG related information including all UE TxTEGs at the time the configuration information was received (e.g., the timing when the request from gNB(/TRP) was received).
  • the target device or terminal can report UE TxTEG related information including all changes in UE TxTEG during the reporting period, based on the periodic value included in the corresponding setting.
  • the TEG and UL SRS mapping information may be a TEG ID-specific list of information that maps UL SRS resources to specific TEG IDs.
  • a UL SRS resource it may be referred to as a UL SRS resource set ID and a specific resource ID in the resource set. Therefore, three IDs, such as one TEG ID, UL SRS resource set ID, and UL SRS resource ID within that resource set, can configure one UL SRS resource and TEG ID mapping, and one SRS resource is just It can belong to only one SRS resource set and one TEG ID. Instead, one TEG ID or one SRS resource set can be associated with multiple resource IDs.
  • the UE may report to the base station the mapping information of TEG and UL SRS that are valid or effective up to that point at each reporting time. Additionally, the mapping information for each TEG and UL SRS may be transmitted along with information on the most recent time when it was valid.
  • the terminal may report to the base station the mapping information of the TEG and UL SRS that was valid or effective up to the time of the report and the most recent time information at which the mapping information was valid.
  • the UE may report additionally including the initially reported TEG and UL SRS mapping information and the TEG and UL SRS mapping information changed from the initially reported information.
  • the content reported by the terminal may be displayed and reported focusing on changes. That is, the UE can report changes in previously reported TEG and UL SRS mapping information, that is, a UL SRS resource list that is added or changed compared to the existing one, and a UL SRS resource list that is removed compared to the existing one.
  • the serving base station or LMF that has received this information can add/change or remove newly reported UL SRS resources based on previous report results.
  • This method of displaying changes mainly includes displaying changes to the TEG ID, SRS resource set, and all types of information in the SRS resource, displaying changes to the UL SRS resource set and SRS resource, or displaying changes to the UL SRS resource. A method of displaying changed contents may be possible.
  • the terminal can report information including the following hierarchy.
  • the first information may mean a list of TEG IDs in which changed SRS resources exist among the mapping information of previously transmitted TEG and SRS resources.
  • the second information e.g., List of Add/Mod of SRS resource set ID
  • the third information e.g., List of Add of SRS resource ID
  • the fourth information may mean a list of IDs of SRS resources missing from the corresponding TEG ID among the changed SRS resources.
  • the fifth information may refer to a list of specific SRS resource sets that are omitted from the corresponding TEG ID among the changed SRS resources. This information may mean that any SRS resources contained in the corresponding missing SRS resource set are collectively removed.
  • the sixth information (e.g., List of release of TEG ID) may indicate that a specific predefined TEG ID itself is removed. All SRS resource sets and SRS resources linked within the TEG ID included in the removal list can be indicated to be removed.
  • Table 3 shows the above Opt. This is an example of the ASN.1 (Abstract Syntax Notation one) structure of 1.
  • maxNrofSRS-PosResources-1-r16 maxNrOfTEG-ID-r17 should be decided by RAN1/4.
  • NR-TimeStamp-r17 SEQUENCE ⁇ nr-SFN-r17 INTEGER (0..1023); nr-Slot-r17 CHOICE ⁇ scs15-r17 INTEGER (0..9); scs30-r17 INTEGER (0..19); scs60-r17 INTEGER (0..39); scs120-r17 INTEGER (0..79) ⁇ , ...
  • the TEG ID is always reported, and when reporting changed information about the SRS resource set and SRS resource associated with the corresponding TEG ID, the terminal can report information including the following hierarchy.
  • the first information may represent a list containing all TEG IDs set at the time of reporting.
  • the second information e.g., List of Add/Mod of SRS resource set ID
  • the third information e.g., List of Add of SRS resource ID
  • fourth information List of release of SRS resource ID
  • the third information refers to the list of SRS resource IDs that are added to the SRS resource set of the corresponding ID among the changed SRS resources
  • the fourth information refers to the list of SRS resource IDs that are omitted from the SRS resource set of the corresponding ID among the changed SRS resources. It can mean.
  • the fifth information (e.g., List of release of SRS resource set ID) may mean a list of SRS resource set IDs to be removed from the corresponding TEG ID. This may mean that all predefined SRS resources included in this SRS resource set are removed.
  • the corresponding TEG ID field can indicate no change through a 1-bit indicator, or if no fields among the SRS resource set or SRS resource are included under the TEG ID, also This TEG ID may mean that it does not have a changed SRS resource.
  • Table 4 shows the above Opt. This is an example of the ASN.1 structure of 2.
  • NR-TimeStamp-r17 SEQUENCE ⁇ nr-SFN-r17 INTEGER (0..1023); nr-Slot-r17 CHOICE ⁇ scs15-r17 INTEGER (0..9); scs30-r17 INTEGER (0..19); scs60-r17 INTEGER (0..39); scs120-r17 INTEGER (0..79) ⁇ , ...
  • the TEG ID and the SRS resource set ID included therein are always reported, and when reporting a changed SRS resource, the terminal can report change information of the SRS resource present in the SRS resource set ID of a specific TEG ID. there is. In this case, the terminal can report information including the hierarchy below.
  • the first information may represent a list containing all TEG IDs set at the time of reporting.
  • the second information (e.g., List of SRS resource set ID) may mean the SRS resource set ID including each resource for all SRS resources associated with the corresponding TEG ID.
  • the third information (e.g., List of Add of SRS resource ID) is an SRS resource ID added to each TEG ID and is included in the SRS resource set ID including it.
  • the fourth information (e.g., List of release of SRS resource ID) is an SRS resource ID removed from each TEG ID and is included in the SRS resource set ID including it.
  • each TEG ID or SRS resource set ID may include previously reported information and a 1-bit indicator indicating that there is no changed SRS resource.
  • each TEG ID or SRS resource set ID may include previously reported information and a 1-bit indicator indicating that there is no changed SRS resource.
  • it may mean that there are no SRS resources that have changed compared to the previously reported information.
  • Table 5 shows the above Opt. This is an example of the ASN.1 structure in 3.
  • NR-TimeStamp-r17 SEQUENCE ⁇ nr-SFN-r17 INTEGER (0..1023); nr-Slot-r17 CHOICE ⁇ scs15-r17 INTEGER (0..9); scs30-r17 INTEGER (0..19); scs60-r17 INTEGER (0..39); scs120-r17 INTEGER (0..79) ⁇ , ...
  • an SRS resource set may not be needed. This case may correspond to a case where the existing SRS resource set has already been mapped to a specific RF of the terminal, or to a specific PCI (physical cell ID) or NR ARFCN (Absolute Radio-Frequency Channel Number) frequency information.
  • the UE can perform the change-based reporting by considering only the mapping of TEG ID and SRS resource IDs. If PCI/ARFCN is considered instead of the SRS resource set, the change-based reporting can be performed by considering the PCI or ARFCN value instead of the SRS resource set ID.
  • a 1-bit indicator indicating that there is no change in the previously reported TEG and UL SRS resource mapping information may be included in the TEG ID level or in the SRS resource set ID level, but for the reporting In the UEPositioningAssistanceInformation message, which is an RRC message, it is located above the TEG ID information and may indicate that there is no overall change regardless of the TEG ID and SRS resource set ID.
  • Table 6 shows an example of the ASN.1 structure of the UEPositioningAssistanceInformation message.
  • maxNrofSRS-PosResources-r16)) OF AssociatedSRS-PosResourceId-r17 OPTIONAL ⁇ AssociatedSRS-PosResourceId-r17 :: INTEGER (0.. maxNrofSRS-PosResources-1-r16) -------Editor Notes: maxNrOfTEG-ID-r17 should be decided by RAN1/4.
  • NR-TimeStamp-r17 SEQUENCE ⁇ nr-SFN-r17 INTEGER (0..1023); nr-Slot-r17 CHOICE ⁇ scs15-r17 INTEGER (0..9); scs30-r17 INTEGER (0..19); scs60-r17 INTEGER (0..39); scs120-r17 INTEGER (0..79) ⁇ , ... ⁇
  • the srs-PosResSetAssociationList-r17 field is set for each TEG ID, and when the field is defined as an OPTIONAL field and is transmitted as absent (i.e., the field is not included in the report message) , the corresponding TEG ID may mean that there is no change compared to the previously transmitted information.
  • the UE-TxTEG-AssociationList-r17 field is also absent, this may mean that the contents of the corresponding UEPositioningAssistanceInformation message are unchanged compared to the contents of the previously transmitted UEPositioningAssistanceInformation message.
  • all TEG IDs and UL SRS resource mapping information up to the time of reporting are valid in one latest version regardless of the specific TEG ID.
  • the report may include time information.
  • a new time stamp field can be defined and reported as a field located higher than the specific TEG ID.
  • the LMF that receives the new time stamp message can recognize that all TEG and UL SRS resource mapping information configured and reported by the UE up to that time is valid. Based on this, the LMF can request that TRPs measure SRS resources included in the same TEG ID when measuring UL SRS.
  • Figure 8 shows a signaling procedure between a terminal and a base station according to an embodiment of the present disclosure.
  • the terminal and base station operations of FIG. 8 may be performed based on the above-described method and/or embodiment.
  • the terminal may receive an RRC reconfiguration message from the base station. That is, the base station can transmit an RRC reset message to the terminal.
  • the RRC reset message may include information indicating whether reporting of TxTEG related information is a one-shot report or a periodic report. For example, if the information indicates periodic reporting, the information may include information about the reporting cycle.
  • the terminal may transmit TxTEG related information to the base station. That is, the base station can receive TxTEG related information from the terminal.
  • the TxTEG related information may be included and transmitted in UE positioning assistance information (UEPositioningAssistanceInformation).
  • the TxTEG association information may include a TxTEG identifier and a list of SRS resources for positioning corresponding to the TxTEG identifier. Additionally, information about the latest time when the TxTEG association information is valid (e.g., time stamp information) may be reported together with the TxTEG association information.
  • TxTEG-related information may include all changes in TxTEG during the reporting period.
  • the TxTEG related information is the above-described Opt.1 to Opt. It may include information based on at least one of the three.
  • all changes to the TxTEG included in the TxTEG association information may include the identifier of the TxTEG corresponding to the changed SRS resource and the identifier of the changed SRS resource from the previously reported TxTEG association information.
  • TxTEG association information may include information about all TxTEGs when the RRC reset message is received.
  • the base station can measure the UL-SRS received from the terminal based on TxTEG related information. Additionally, UL-SRS measurement results related to the positioning of the terminal may be reported to the LMF.
  • Operations performed by the target device/terminal in the method and/or embodiments proposed in this disclosure may be executed by the configuration included in the terminal of FIG. 5 described above.
  • the UE may report UE TxTEG related information including TEG and UL SRS mapping information to the gNB.
  • the base station may receive UE TxTEG related information including TEG and UL SRS mapping information from the terminal and transmit an NRPPa positioning information response message to the LMF. Additionally, the base station can measure UL-SRS transmitted from the target device/terminal (e.g., UL-TDOA measurement).
  • the LMF may be a network entity that performs LMF.
  • an LMF (or a network entity that performs LMF) may include a controller and a transceiver.
  • the controller may consist of one or more processors.
  • the controller may control operations performed by the LMF in the method and/or embodiments proposed in this disclosure.
  • the LMF may transmit an NRPPa positioning information request message to the base station and receive a corresponding response message.
  • the LMF may transmit an NRPPa measurement request message and receive an NRPPa measurement response message including the measurement result from the base station.
  • the LMF may communicate with an Access and Mobility Management Function (AMF) through the transceiver.
  • AMF Access and Mobility Management Function
  • drawings explaining the method of the present disclosure may omit some components and include only some components within the scope that does not impair the essence of the present disclosure.
  • the method of the present disclosure may be implemented by combining some or all of the content included in each embodiment within the scope that does not impair the essence of the disclosure.

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  • Computer Networks & Wireless Communication (AREA)
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Abstract

L'invention concerne un procédé réalisé par un terminal dans un système de communication sans fil. Le procédé peut comprendre les étapes consistant : à recevoir un message de reconfiguration de commande RRC en provenance d'une station de base, le message de reconfiguration de commande RRC comportant des informations indiquant si un rapport d'informations associées à un groupe TxTEG est un rapport ponctuel ou un rapport périodique ; et à transmettre les informations associées au groupe TxTEG à la station de base ; lorsque le rapport périodique est configuré sur la base des informations, les informations associées à un groupe TxTEG peuvent comprendre tous les changements du groupe TxTEG pour la période de rapport.
PCT/KR2023/005471 2022-04-21 2023-04-21 Procédé permettant de transmettre des informations de groupe d'erreurs de temps de transmission pour un terminal pour une mesure de localisation WO2023204672A1 (fr)

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WO2022055696A1 (fr) * 2020-09-11 2022-03-17 Qualcomm Incorporated Indication de groupe de synchronisation pour mesure de positionnement
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WO2022055696A1 (fr) * 2020-09-11 2022-03-17 Qualcomm Incorporated Indication de groupe de synchronisation pour mesure de positionnement
WO2022065921A1 (fr) * 2020-09-24 2022-03-31 엘지전자 주식회사 Procédé d'émission/réception d'un signal dans un système de communication sans fil et appareil le prenant en charge
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