WO2019221471A1 - Procédé de création de rapport d'informations d'état de canal dans un système de communication sans fil, et appareil associé - Google Patents

Procédé de création de rapport d'informations d'état de canal dans un système de communication sans fil, et appareil associé Download PDF

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Publication number
WO2019221471A1
WO2019221471A1 PCT/KR2019/005749 KR2019005749W WO2019221471A1 WO 2019221471 A1 WO2019221471 A1 WO 2019221471A1 KR 2019005749 W KR2019005749 W KR 2019005749W WO 2019221471 A1 WO2019221471 A1 WO 2019221471A1
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resource
csi
reporting
information
setting
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PCT/KR2019/005749
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English (en)
Korean (ko)
Inventor
고성원
강지원
박종현
박해욱
윤석현
염건일
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엘지전자 주식회사
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B17/00—Monitoring; Testing
    • H04B17/30—Monitoring; Testing of propagation channels
    • H04B17/309—Measuring or estimating channel quality parameters
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/10—Scheduling measurement reports ; Arrangements for measurement reports

Definitions

  • the present invention relates to a wireless communication system, and more particularly, to a method for performing channel state information (CSI) reporting and an apparatus supporting the same.
  • CSI channel state information
  • CMR channel measurement resource
  • IMR interference measurement resource
  • the measured value is i) the first downlink received through the first resource. It may include a measurement value for the received power based on the reference signal and ii) a measurement value for the interference measurement based on the second downlink reference signal received through the second resource.
  • the method when the setting for the second resource is related to the information on the resource setting, the method may further include: intermediate access control for activating the second resource; The method may further include receiving a control element (MAC-CE) or downlink control information (DCI) for triggering the second resource.
  • MAC-CE control element
  • DCI downlink control information
  • information on a reporting setting related to the CSI reporting may be delivered through higher layer signaling.
  • the method may further include transmitting flag information indicating that the setting of the second resource is related to the information on the resource setting to the base station. .
  • An apparatus for performing channel state information reporting for beam management in a wireless communication system comprising: a memory; And at least one processor coupled to the memory, the at least one processor receiving information about a reporting setting associated with the CSI report;
  • the information on the resource setting is related to at least one of i) a first resource for channel measurement and / or ii) a second resource for interference measurement, and the first resource and / or Or receive a downlink reference signal for the CSI reporting through at least one of the second resources;
  • By using the measured value based on the downlink reference signal it is possible to control to perform the CSI report to the base station.
  • the measured value is i) a first downlink received through the first resource. It may include a measurement value for the received power based on the reference signal and ii) a measurement value for the interference measurement based on the second downlink reference signal received through the second resource.
  • the report setting includes setting for report information of the CSI report, wherein the report information includes: i) report information related to CSI, and ii) report information related to RSRP. And / or iii) a combination of reporting information related to CSI and reporting information related to RSRP.
  • the first resource may be an NZP CSI-RS resource for the channel measurement
  • the second resource may be a ZP CSI-RS resource for the interference measurement
  • the at least one processor is configured to activate the second resource when the setting for the second resource is related to the information on the resource setting. It may be controlled to receive a Medium Access Control-Control Element (MAC-CE) or Downlink Control Information (DCI) for triggering the second resource.
  • MAC-CE Medium Access Control-Control Element
  • DCI Downlink Control Information
  • information on a reporting setting related to the CSI report may be delivered through higher layer signaling.
  • the at least one processor may control to transmit flag information indicating that the setting of the second resource is related to the information on the resource setting to the base station. have.
  • An apparatus for receiving channel state information report for beam management in a wireless communication system comprising: a memory; And at least one processor coupled to the memory, the at least one processor transmitting information about a reporting setting associated with the CSI report;
  • the information on the resource setting is related to at least one of i) a first resource for channel measurement and / or ii) a second resource for interference measurement, and the first resource and / or Or transmit a downlink reference signal for the CSI reporting through at least one of the second resources;
  • the UE may control to receive the CSI report using the measured value based on the downlink reference signal.
  • the information on the interference measurement is also reported for the channel state report for beam management, there is an advantage in that the accuracy in terms of beam reporting and / or beam selection may be improved.
  • Figure 1 shows an example of the overall system structure of the NR to which the method proposed in this specification can be applied.
  • FIG. 2 illustrates a relationship between an uplink frame and a downlink frame in a wireless communication system to which the method proposed in the present specification may be applied.
  • FIG 3 shows an example of a frame structure in an NR system.
  • FIG. 4 shows an example of a resource grid supported by a wireless communication system to which the method proposed in this specification can be applied.
  • FIG. 5 shows examples of an antenna port and a number of resource grids based on each numerology to which the method proposed in this specification can be applied.
  • FIG. 6 shows an example of a self-contained structure to which the method proposed in this specification can be applied.
  • FIG. 7 is a flowchart illustrating an example of a CSI related procedure.
  • FIG. 8 is a flowchart illustrating an operation of a terminal for performing channel state information reporting to which the method proposed in the present specification can be applied.
  • FIG. 9 is a flowchart illustrating an operation of a base station receiving a channel state information report to which the method proposed in the present specification may be applied.
  • FIG. 10 illustrates a wireless communication device according to an embodiment of the present invention.
  • FIG. 11 is another example of a block diagram of a wireless communication apparatus to which the methods proposed herein may be applied.
  • downlink means communication from a base station to a terminal
  • uplink means communication from a terminal to a base station.
  • a transmitter may be part of a base station, and a receiver may be part of a terminal.
  • a transmitter may be part of a terminal and a receiver may be part of a base station.
  • the base station may be represented by the first communication device and the terminal by the second communication device.
  • the base station (BS) is a fixed station (Node), Node B, evolved-NodeB (eNB), Next Generation NodeB (gNB), base transceiver system (BTS), access point (AP), network (5G) Network), AI system, road side unit (RSU), robot, or the like.
  • a terminal may be fixed or mobile, and may include a user equipment (UE), a mobile station (MS), a user terminal (UT), a mobile subscriber station (MSS), a subscriber station (SS), and an advanced mobile AMS.
  • UE user equipment
  • MS mobile station
  • UT user terminal
  • MSS mobile subscriber station
  • SS subscriber station
  • MTC Machine-Type Communication
  • M2M Machine-to-Machine
  • D2D Device-to-Device
  • Vehicle Robot
  • AI Module May be replaced with such terms.
  • CDMA may be implemented with a radio technology such as Universal Terrestrial Radio Access (UTRA) or CDMA2000.
  • TDMA may be implemented with wireless technologies 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 a wireless technology such as IEEE 802.11 (Wi-Fi), IEEE 802.16 (WiMAX), IEEE 802-20, Evolved UTRA (E-UTRA).
  • UTRA is part of the Universal Mobile Telecommunications System (UMTS).
  • 3rd Generation Partnership Project (3GPP) Long Term Evolution (LTE) is part of Evolved UMTS (E-UMTS) using E-UTRA and LTE-A (Advanced) / LTE-A pro is an evolution of 3GPP LTE.
  • 3GPP NR New Radio or New Radio Access Technology is an evolution of 3GPP LTE / LTE-A / LTE-A pro.
  • LTE refers to technology after 3GPP TS 36.xxx Release 8.
  • LTE technology after 3GPP TS 36.xxx Release 10 is referred to as LTE-A
  • LTE technology after 3GPP TS 36.xxx Release 13 is referred to as LTE-A pro
  • 3GPP NR means technology after TS 38.xxx Release 15.
  • LTE / NR may be referred to as a 3GPP system.
  • "xxx" means standard document detail number.
  • LTE / NR may be collectively referred to as 3GPP system. Background, terminology, abbreviations and the like used in the description of the present invention may refer to the matters described in the standard documents published before the present invention. For example, see the following document:
  • RRC Radio Resource Control
  • NR is an expression showing an example of 5G radio access technology (RAT).
  • RAT 5G radio access technology
  • the new RAT system including the NR uses an OFDM transmission scheme or a similar transmission scheme.
  • the new RAT system may follow different OFDM parameters than the OFDM parameters of LTE.
  • the new RAT system can follow the existing numeric / numerology of LTE / LTE-A but have a larger system bandwidth (eg, 100 MHz).
  • one cell may support a plurality of neurology. That is, terminals operating with different neurology may coexist in one cell.
  • Numerology corresponds to one subcarrier spacing in the frequency domain. By scaling the reference subcarrier spacing to an integer N, different numerology can be defined.
  • the three main requirements areas of 5G are: (1) Enhanced Mobile Broadband (eMBB) area, (2) massive Machine Type Communication (mMTC) area, and (3) ultra-reliability and It includes the area of Ultra-reliable and Low Latency Communications (URLLC).
  • eMBB Enhanced Mobile Broadband
  • mMTC massive Machine Type Communication
  • URLLC Ultra-reliable and Low Latency Communications
  • KPI key performance indicator
  • eMBB goes far beyond basic mobile Internet access and covers media and entertainment applications in rich interactive work, cloud or augmented reality.
  • Data is one of the key drivers of 5G and may not see dedicated voice services for the first time in the 5G era.
  • voice is expected to be treated as an application simply using the data connection provided by the communication system.
  • the main reasons for the increased traffic volume are the increase in content size and the increase in the number of applications requiring high data rates.
  • Streaming services (audio and video), interactive video, and mobile Internet connections will become more popular as more devices connect to the Internet. Many of these applications require always-on connectivity to push real-time information and notifications to the user.
  • Cloud storage and applications are growing rapidly in mobile communication platforms, which can be applied to both work and entertainment.
  • cloud storage is a special use case that drives the growth of uplink data rates.
  • 5G is also used for remote tasks in the cloud and requires much lower end-to-end delays to maintain a good user experience when tactile interfaces are used.
  • Entertainment For example, cloud gaming and video streaming are another key factor in increasing the need for mobile broadband capabilities. Entertainment is essential in smartphones and tablets anywhere, including in high mobility environments such as trains, cars and airplanes.
  • Another use case is augmented reality and information retrieval for entertainment.
  • augmented reality requires very low latency and instantaneous amount of data.
  • one of the most anticipated 5G use cases relates to the ability to seamlessly connect embedded sensors in all applications, namely mMTC.
  • potential IoT devices are expected to reach 20 billion.
  • Industrial IoT is one of the areas where 5G plays a major role in enabling smart cities, asset tracking, smart utilities, agriculture and security infrastructure.
  • URLLC includes new services that will change the industry through ultra-reliable / low-latency links available, such as remote control of key infrastructure and self-driving vehicles.
  • the level of reliability and latency is essential for smart grid control, industrial automation, robotics, drone control and coordination.
  • 5G can complement fiber-to-the-home (FTTH) and cable-based broadband (or DOCSIS) as a means of providing streams that are rated at hundreds of megabits per second to gigabits per second. This high speed is required to deliver TVs in 4K and above (6K, 8K and above) resolutions as well as virtual and augmented reality.
  • Virtual Reality (AVR) and Augmented Reality (AR) applications include nearly immersive sporting events. Certain applications may require special network settings. For example, for VR games, game companies may need to integrate core servers with network operator's edge network servers to minimize latency.
  • Automotive is expected to be an important new driver for 5G, with many examples for mobile communications to vehicles. For example, entertainment for passengers requires simultaneous high capacity and high mobility mobile broadband. This is because future users continue to expect high quality connections regardless of their location and speed.
  • Another use case in the automotive field is augmented reality dashboards. It identifies objects in the dark above what the driver sees through the front window and overlays information that tells the driver about the distance and movement of the object.
  • wireless modules enable communication between vehicles, the exchange of information between the vehicle and the supporting infrastructure, and the exchange of information between the vehicle and other connected devices (eg, devices carried by pedestrians).
  • Safety systems guide alternative courses of action to help drivers drive safer, reducing the risk of an accident.
  • the next step will be a remotely controlled or self-driven vehicle.
  • Smart cities and smart homes will be embedded in high-density wireless sensor networks.
  • the distributed network of intelligent sensors will identify the conditions for cost and energy-efficient maintenance of the city or home. Similar settings can be made for each hypothesis.
  • Temperature sensors, window and heating controllers, burglar alarms and appliances are all connected wirelessly. Many of these sensors are typically low data rates, low power and low cost. However, for example, real-time HD video may be required in certain types of devices for surveillance.
  • Smart grids interconnect these sensors using digital information and communication technologies to gather information and act accordingly. This information can include the behavior of suppliers and consumers, allowing smart grids to improve the distribution of fuels such as electricity in efficiency, reliability, economics, sustainability of production, and in an automated manner. Smart Grid can be viewed as another sensor network with low latency.
  • the health sector has many applications that can benefit from mobile communications.
  • the communication system may support telemedicine that provides clinical care from a distance. This can help reduce barriers to distance and improve access to healthcare services that are not consistently available in remote rural areas. It is also used to save lives in critical care and emergencies.
  • a mobile communication based wireless sensor network can provide remote monitoring and sensors for parameters such as heart rate and blood pressure.
  • Wireless and mobile communications are becoming increasingly important in industrial applications. Wiring is expensive to install and maintain. Thus, the possibility of replacing the cables with reconfigurable wireless links is an attractive opportunity in many industries. However, achieving this requires that the wireless connection operates with similar cable delay, reliability, and capacity, and that management is simplified. Low latency and very low error probability are new requirements that need to be connected in 5G.
  • Logistics and freight tracking are important use cases for mobile communications that enable the tracking of inventory and packages from anywhere using a location-based information system.
  • the use of logistics and freight tracking typically requires low data rates but requires wide range and reliable location information.
  • eLTE eNB An eLTE eNB is an evolution of an eNB that supports connectivity to EPC and NGC.
  • gNB Node that supports NR as well as connection with NGC.
  • New RAN A radio access network that supports NR or E-UTRA or interacts with NGC.
  • Network slice A network slice defined by the operator to provide an optimized solution for specific market scenarios that require specific requirements with end-to-end coverage.
  • Network function is a logical node within a network infrastructure with well-defined external interfaces and well-defined functional behavior.
  • NG-C Control plane interface used for the NG2 reference point between the new RAN and NGC.
  • NG-U User plane interface used for the NG3 reference point between the new RAN and NGC.
  • Non-standalone NR A deployment configuration where a gNB requires an LTE eNB as an anchor for control plane connection to EPC or an eLTE eNB as an anchor for control plane connection to NGC.
  • Non-Standalone E-UTRA Deployment configuration in which the eLTE eNB requires gNB as an anchor for control plane connection to NGC.
  • User plane gateway The endpoint of the NG-U interface.
  • Figure 1 shows an example of the overall system structure of the NR to which the method proposed in this specification can be applied.
  • the NG-RAN consists of gNBs that provide control plane (RRC) protocol termination for the NG-RA user plane (new AS sublayer / PDCP / RLC / MAC / PHY) and UE (User Equipment).
  • RRC control plane
  • the gNBs are interconnected via an X n interface.
  • the gNB is also connected to the NGC via an NG interface.
  • the gNB is connected to an Access and Mobility Management Function (AMF) through an N2 interface and to a User Plane Function (UPF) through an N3 interface.
  • AMF Access and Mobility Management Function
  • UPF User Plane Function
  • the numerology may be defined by subcarrier spacing and cyclic prefix overhead.
  • the plurality of subcarrier intervals can be derived by scaling the basic subcarrier interval to an integer N (or ⁇ ). Further, even if it is assumed that very low subcarrier spacing is not used at very high carrier frequencies, the used numerology may be selected independently of the frequency band.
  • OFDM Orthogonal Frequency Division Multiplexing
  • OFDM numerologies supported in the NR system may be defined as shown in Table 1.
  • the size of the various fields in the time domain Is expressed as a multiple of the time unit. From here, ego, to be.
  • Downlink and uplink transmissions It consists of a radio frame having a section of (radio frame).
  • each radio frame is It consists of 10 subframes having a section of.
  • FIG. 2 illustrates a relationship between an uplink frame and a downlink frame in a wireless communication system to which the method proposed in the present specification may be applied.
  • the transmission of an uplink frame number i from a user equipment (UE) is greater than the start of the corresponding downlink frame at the corresponding UE. You must start before.
  • slots within a subframe Numbered in increasing order of within a radio frame They are numbered in increasing order of.
  • One slot is Consists of consecutive OFDM symbols of, Is determined according to the numerology and slot configuration used. Slot in subframe Start of OFDM symbol in the same subframe Is aligned with the beginning of time.
  • Not all terminals can transmit and receive at the same time, which means that not all OFDM symbols of a downlink slot or an uplink slot can be used.
  • Table 2 shows the number of OFDM symbols per slot in a normal CP. ), The number of slots per radio frame ( ), The number of slots per subframe ( Table 3 shows the number of OFDM symbols per slot, the number of slots per radio frame, and the number of slots per subframe in the extended CP.
  • 3 shows an example of a frame structure in an NR system. 3 is merely for convenience of description and does not limit the scope of the invention.
  • mini-slot may consist of two, four or seven symbols, and may consist of more or fewer symbols.
  • an antenna port In relation to physical resources in the NR system, an antenna port, a resource grid, a resource element, a resource block, a carrier part, etc. May be considered.
  • the antenna port is defined so that the channel on which the symbol on the antenna port is carried can be inferred from the channel on which another symbol on the same antenna port is carried. If the large-scale property of the 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 wide range characteristics include one or more of delay spread, Doppler spread, frequency shift, average received power, and received timing.
  • FIG. 4 shows an example of a resource grid supported by a wireless communication system to which the method proposed in this specification can be applied.
  • one subframe includes 14 x 2 ⁇ u OFDM symbols, but is not limited thereto.
  • the transmitted signal is One or more resource grids composed of subcarriers, and Is described by the OFDM symbols of. From here, to be. remind Denotes the maximum transmission bandwidth, which may vary between uplink and downlink as well as numerologies.
  • the numerology And one resource grid for each antenna port p.
  • FIG. 5 shows examples of an antenna port and a number of resource grids based on each numerology to which the method proposed in this specification can be applied.
  • each element of the resource grid for antenna port p is referred to as a resource element and is an index pair Uniquely identified by From here, Is the index on the frequency domain, Refers to the position of a symbol within a subframe. Index pair when referring to a resource element in a slot This is used. From here, to be.
  • Numerology Resource elements for antenna and antenna port p Is a complex value Corresponds to If there is no risk of confusion, or if no specific antenna port or numerology is specified, the indices p and Can be dropped, so the complex value is or This can be
  • the physical resource block (physical resource block) is in the frequency domain It is defined as consecutive subcarriers.
  • Point A serves as a common reference point of the resource block grid and can be obtained as follows.
  • OffsetToPointA for the PCell downlink represents the frequency offset between the lowest subcarrier of the lowest resource block and point A overlapping with the SS / PBCH block used by the UE for initial cell selection, and a 15 kHz subcarrier spacing for FR1 and Expressed in resource block units assuming a 60 kHz subcarrier spacing for FR2;
  • Common resource blocks set subcarrier spacing It is numbered from zero up in the frequency domain for.
  • Is It may be defined relative to point A to correspond to the subcarrier centered on this point A.
  • Physical resource blocks are zero-based within the bandwidth part (BWP). Numbered until, Is the number of the BWP. Physical resource blocks on BWP i And common resource blocks Can be given by Equation 2 below.
  • NR systems can be supported up to 400 MHz per component carrier (CC). If a terminal operating in such a wideband CC operates with the RF for the entire CC always on, the terminal battery consumption may increase.
  • different numerology e.g., sub-carrier spacing
  • the base station may instruct the terminal to operate only in a portion of bandwidth rather than the entire bandwidth of the wideband CC, and define the portion of bandwidth as a bandwidth part (BWP) for convenience.
  • the BWP may consist of consecutive resource blocks (RBs) on the frequency axis and may correspond to one numerology (e.g., sub-carrier spacing, CP length, slot / mini-slot duration).
  • the base station can set a number of BWP even in one CC configured in the terminal. For example, in the PDCCH monitoring slot, a BWP that occupies a relatively small frequency region may be set, and a PDSCH indicated by the PDCCH may be scheduled on a larger BWP. Or, if UEs are concentrated in a specific BWP, some UEs can be configured as other BWPs for load balancing. Alternatively, in consideration of frequency domain inter-cell interference cancellation between neighboring cells, some BWPs may be set within the same slot by excluding some spectrum from the entire bandwidth.
  • the base station can configure at least one DL / UL BWP to the UE associated with the wideband CC, at least one DL / UL BWP of the configured DL / UL BWP (s) at a specific time (L1 signaling or MAC Can be activated by CE or RRC signaling) and switching to another configured DL / UL BWP can be indicated (by L1 signaling or MAC CE or RRC signaling) or when timer value expires based on timer can be switched.
  • the activated DL / UL BWP is defined as the active DL / UL BWP.
  • the time division duplex (TDD) structure considered in the NR system is a structure that processes both uplink (UL) and downlink (DL) in one slot (or subframe). This is to minimize latency of data transmission in a TDD system, and the structure may be referred to as a self-contained structure or a self-contained slot.
  • 6 shows an example of a self-contained structure to which the method proposed in this specification can be applied. 6 is merely for convenience of description and does not limit the scope of the invention.
  • one transmission unit eg, slot, subframe
  • 14 orthogonal frequency division multiplexing (OFDM) symbols e.g., OFDM
  • an area 602 means a downlink control region
  • an area 604 means an uplink control region.
  • an area other than the area 602 and the area 604 may be used for transmitting downlink data or uplink data.
  • uplink control information and downlink control information may be transmitted in one self-contained slot.
  • uplink data or downlink data may be transmitted in one self-contained slot.
  • downlink transmission and uplink transmission are sequentially performed in one self-contained slot, and transmission of downlink data and reception of uplink ACK / NACK may be performed.
  • a process of switching from a transmission mode to a reception mode by a base station (eNodeB, eNB, gNB) and / or a terminal (User Equipment) a time gap for switching from a reception mode to a transmission mode is required.
  • some OFDM symbol (s) may be set to a guard period (GP).
  • the channel state information-reference signal may include time and / or frequency tracking, CSI computation, L1 (layer 1) -RSRP (reference signal received). It is used for power computation and mobility.
  • CSI computation is related to CSI acquisition
  • L1-RSRP computation is related to beam management (BM).
  • Channel state information refers to information that may indicate the quality of a wireless channel (or also referred to as a link) formed between a terminal and an antenna port.
  • FIG. 7 is a flowchart illustrating an example of a CSI related procedure.
  • a UE may transmit configuration information related to CSI to a base station (eg, general Node B) through RRC (radio resource control) signaling. , gNB) (S710).
  • a base station eg, general Node B
  • RRC radio resource control
  • gNB gNode B
  • the CSI-related configuration information may include information related to CSI-IM (interference management) resources, information related to CSI measurement configuration, information related to CSI resource configuration, and information related to CSI-RS resource. Or CSI report configuration related information.
  • CSI-IM interference management
  • CSI-IM resource related information may include CSI-IM resource information, CSI-IM resource set information, and the like.
  • the CSI-IM resource set is identified by a CSI-IM resource set identifier (ID), and one resource set includes at least one CSI-IM resource.
  • Each CSI-IM resource is identified by a CSI-IM resource ID.
  • CSI resource configuration related information may be represented by CSI-ResourceConfig IE.
  • the CSI resource configuration related information defines a group including at least one of a non zero power (NZP) CSI-RS resource set, a CSI-IM resource set, or a CSI-SSB resource set. That is, the CSI resource configuration related information includes a CSI-RS resource set list, and the CSI-RS resource set list includes at least one of an NZP CSI-RS resource set list, a CSI-IM resource set list, or a CSI-SSB resource set list. It may include one.
  • the CSI-RS resource set is identified by a CSI-RS resource set ID, and one resource set includes at least one CSI-RS resource. Each CSI-RS resource is identified by a CSI-RS resource ID.
  • parameters indicating the use of the CSI-RS eg, a 'repetition' parameter related to BM and a 'trs-Info' parameter related to tracking
  • a 'repetition' parameter related to BM and a 'trs-Info' parameter related to tracking may be set.
  • Table 4 shows an example of the NZP CSI-RS resource set IE.
  • the repetition parameter corresponding to the higher layer parameter corresponds to 'CSI-RS-ResourceRep' of the L1 parameter.
  • the CSI report configuration related information includes a reportConfigType parameter indicating a time domain behavior and a reportQuantity parameter indicating a CSI related quantity for reporting.
  • the time domain behavior may be periodic, aperiodic or semi-persistent.
  • CSI report configuration related information may be represented by CSI-ReportConfig IE, and Table 5 below shows an example of CSI-ReportConfig IE.
  • the terminal measures the CSI based on the configuration information related to the CSI (S720).
  • the CSI measurement may include (1) a process of receiving a CSI-RS of a terminal (S721) and (2) a process of calculating a CSI through a received CSI-RS (S722), which will be described in detail. Will be described later.
  • the CSI-RS is configured to map resource elements (REs) of CSI-RS resources in a time and frequency domain by higher layer parameter CSI-RS-ResourceMapping.
  • REs resource elements
  • Table 6 shows an example of the CSI-RS-ResourceMapping IE.
  • density (D) represents the density of CSI-RS resources measured in RE / port / PRB (physical resource block), and nrofPorts represents the number of antenna ports.
  • the terminal reports the measured CSI to the base station (S730).
  • the terminal may omit the report.
  • the terminal may report to the base station.
  • the report of the terminal can be omitted only when the repetition is set to 'ON'.
  • the NR system supports more flexible and dynamic CSI measurement and reporting.
  • the CSI measurement may include a procedure of receiving a CSI-RS, computing the received CSI-RS, and acquiring the CSI.
  • CM semi-persistent / periodic channel measurement
  • IM interference measurement
  • CSI-IM based IMR of NR has a design similar to that of LTE CSI-IM, and may be configured independently of ZP CSI-RS resources for PDSCH rate matching. And, in NZP CSI-RS based IMR, each port emulates an interference layer with (preferred channel and) precoded NZP CSI-RS. This is for intra-cell interference measurement for multi-user cases and mainly targets MU interference.
  • the base station may transmit the precoded NZP CSI-RS to the terminal on each port of the configured NZP CSI-RS based IMR.
  • the UE assumes a channel / interference layer for each port in the resource set and can measure interference.
  • the base station or network For a channel, if there is no PMI and RI feedback, multiple resources are set in the set, and the base station or network indicates a subset of NZP CSI-RS resources through DCI for channel / interference measurement.
  • Each CSI resource setting 'CSI-ResourceConfig' includes a configuration for S ⁇ 1 CSI resource set (given by the higher layer parameter csi-RS-ResourceSetList).
  • the CSI resource setting corresponds to the CSI-RS-resourcesetlist.
  • S represents the number of the set CSI-RS resource set.
  • the configuration for the S ⁇ 1 CSI resource set is an SS / PBCH block (SSB) used for each CSI resource set including LSI-RSRP computation and each CSI-RS resource (configured as NZP CSI-RS or CSI-IM). ) contains resources.
  • SSB SS / PBCH block
  • Each CSI resource setting is located in the DL bandwidth part (BWP) identified by the higher layer parameter bwp-id. And all CSI resource settings linked to the CSI reporting setting have the same DL BWP.
  • BWP DL bandwidth part
  • the time domain behavior of the CSI-RS resource in the CSI resource setting included in the CSI-ResourceConfig IE is indicated by a higher layer parameter resourceType and may be set to aperiodic, periodic, or semi-persistent.
  • the number S of the set CSI-RS resource sets may be limited to '1'.
  • the set period and slot offset can be given in the numerology of the associated DL BWP, as given by bwp-id.
  • the same time domain behavior may be set for the CSI-ResourceConfig.
  • the same time domain behavior may be set for the CSI-ResourceConfig.
  • CM channel measurement
  • IM interference measurement
  • NZP CSI-RS resource for interference measurement
  • NZP CSI-RS resource for channel measurement NZP CSI-RS resource for channel measurement.
  • the CMR may be NZP CSI-RS for CSI acquisition
  • the IMR may be NZP CSI-RS for CSI-IM and IM.
  • CSI-IM (or ZP CSI-RS for IM) may be mainly used for inter-cell interference measurement.
  • NZP CSI-RS for IM can be used for intra-cell interference measurement mainly from multi-user.
  • the UE may assume that the CSI-RS resource (s) for channel measurement and the CSI-IM / NZP CSI-RS resource (s) for interference measurement configured for one CSI reporting are 'QCL-TypeD' for each resource. .
  • a resource setting can mean a resource set list.
  • each trigger state set using the higher layer parameter CSI-AperiodicTriggerState is associated with one or more CSI-ReportConfigs where each CSI-ReportConfig is linked to periodic, semi-persistent, or aperiodic resource settings. Associated.
  • One reporting setting can be associated with up to three resource settings.
  • the resource setting (given by the higher layer parameter resourcesForChannelMeasurement) is for channel measurement for the L1-RSRP computation.
  • the first resource setting (given by the higher layer parameter resourcesForChannelMeasurement) is for channel measurement and the second resource (given by csi-IM-ResourcesForInterference or nzp-CSI-RS -ResourcesForInterference).
  • the setting is for interference measurements performed on the CSI-IM or NZP CSI-RS.
  • the first resource setting (given by resourcesForChannelMeasurement) is for channel measurement
  • the second resource setting (given by csi-IM-ResourcesForInterference) is for CSI-IM based interference measurement
  • the third resource setting (given by nzp-CSI-RS-ResourcesForInterference) is for NZP CSI-RS based interference measurement.
  • each CSI-ReportConfig is linked to a periodic or semi-persistent resource setting.
  • the resource setting is for channel measurement for L1-RSRP computation.
  • the first resource setting (given by resourcesForChannelMeasurement) is for channel measurement, and the second resource setting (given by higher layer parameter csi-IM-ResourcesForInterference) is performed on CSI-IM. Used for interference measurement.
  • each CSI-RS resource for channel measurement is associated with the CSI-IM resource by resource in the order of the CSI-RS resources and the CSI-IM resources in the corresponding resource set. .
  • the number of CSI-RS resources for channel measurement is the same as the number of CSI-IM resources.
  • the UE does not expect to be set to one or more NZP CSI-RS resources in the associated resource set within the resource setting for channel measurement.
  • the UE configured with the higher layer parameter nzp-CSI-RS-ResourcesForInterference does not expect more than 18 NZP CSI-RS ports to be configured in the NZP CSI-RS resource set.
  • the terminal assumes the following.
  • Each NZP CSI-RS port configured for interference measurement corresponds to an interference transport layer.
  • All interference transport layers of the NZP CSI-RS port for interference measurement take into account the energy per resource element (EPRE) ratio.
  • EPRE energy per resource element
  • the time and frequency resources available to the UE are controlled by the base station.
  • Channel state information includes channel quality indicator (CQI), precoding matrix indicator (PMI), CSI-RS resource indicator (CRI), SS / PBCH block resource indicator (SSBRI), layer It may include at least one of the indicator (LI), rank indicator (RI) or L1-RSRP.
  • CQI channel quality indicator
  • PMI precoding matrix indicator
  • CRI CSI-RS resource indicator
  • SSBRI SS / PBCH block resource indicator
  • layer It may include at least one of the indicator (LI), rank indicator (RI) or L1-RSRP.
  • the UE For CQI, PMI, CRI, SSBRI, LI, RI, L1-RSRP, the UE is N ⁇ 1 CSI-ReportConfig reporting setting, M ⁇ 1 CSI-ResourceConfig resource setting and a list of one or two trigger states (aperiodicTriggerStateList and semiPersistentOnPUSCH) Set by the higher layer (provided by TriggerStateList).
  • Each trigger state in the aperiodicTriggerStateList includes an associated CSI-ReportConfigs list indicating channel and optionally resource set IDs for interference.
  • each trigger state contains one associated CSI-ReportConfig.
  • the time domain behavior of CSI reporting supports periodic, semi-persistent, and aperiodic.
  • Periodic CSI reporting is performed on short PUCCH and long PUCCH. Periodic and slot offsets of Periodic CSI reporting can be set to RRC. Refer to CSI-ReportConfig IE.
  • SP semi-periodic
  • the period and slot offset are set to RRC, and CSI reporting is activated / deactivated by a separate MAC CE / DCI.
  • SP CSI on PUSCH periodicity of SP CSI reporting is set to RRC, but slot offset is not set to RRC, and SP CSI reporting is activated / deactivated by DCI (format 0_1).
  • DCI format 0_1
  • SP-CSI C-RNTI SP-CSI C-RNTI
  • the initial CSI reporting timing follows a PUSCH time domain allocation value indicated in DCI, and the subsequent CSI reporting timing follows a period set to RRC.
  • DCI format 0_1 includes a CSI request field and may activate / deactivate a specific configured SP-CSI trigger state.
  • SP CSI reporting has the same or similar activation / deactivation as the mechanism with data transmission on the SPS PUSCH.
  • aperiodic CSI reporting is performed on PUSCH and triggered by DCI.
  • information related to trigger of aperiodic CSI reporting may be delivered / instructed / configured through MAC-CE.
  • AP CSI-RS timing is set by RRC and timing for AP CSI reporting is dynamically controlled by DCI.
  • NR does not apply a method of dividing CSI in multiple reporting instances that were applied to PUCCH-based CSI reporting in LTE (for example, RI, WB PMI / CQI, and SB PMI / CQI in order). Instead, NR restricts the setting of specific CSI reporting on short / long PUCCH, and CSI omission rule is defined. And, with respect to the AP CSI reporting timing, the PUSCH symbol / slot location is dynamically indicated by the DCI. The candidate slot offsets are set by the RRC. For CSI reporting, slot offset (Y) is set for each reporting setting. For UL-SCH, slot offset K2 is set separately.
  • Two CSI latency classes are defined in terms of CSI computation complexity.
  • low latency CSI it is a WB CSI including up to 4 ports Type-I codebook or up to 4-ports non-PMI feedback CSI.
  • High latency CSI refers to other CSI except low latency CSI.
  • Z, Z ' is defined in units of OFDM symbols.
  • Z represents the minimum CSI processing time from the reception of the Aperiodic CSI triggering DCI until the CSI report is performed.
  • Z ' represents a minimum CSI processing time from receiving CSI-RS for channel / interference to performing CSI reporting.
  • the terminal reports the number of CSI that can be calculated at the same time.
  • Table 7 shows an example of a CSI reporting configuration defined in a standard (eg, 3gpp TS 38.214).
  • Table 8 shows an example of information related to activation / deactivation / trigger by MAC-CE related to Semi-Persistent / Aperiodic CSI reporting defined in a standard (eg, 3gpp TS 38.321).
  • the reporting setting is related to the CSI (eg, ReportQuantity).
  • CSI-related quantity and / or RSRP-related reporting information (eg, L1-RSRP-related quantity) can be set and / or indicated.
  • the CSI-related report quantity is' CRI / RI / PMI / CQI ',' CRI / RI / i1 ',' CRI / RI / i1 / CQI ',' CRI / RI / CQI 'or' CRI / RI / LI / PMI / CQI ', and the L1-RSRP-related report quantity may include' CRI / RSRP 'or' SSBRI / RSRP '.
  • a resource setting related to CSI reporting may include a plurality of resource sets including a plurality of resources such as NZP CSI-RS and / or ZP CSI-RS. These one or more resource settings may be linked to (or associated with, or associated with) the reporting settings described above to configure and / or perform CSI reporting.
  • CSI-RS acquisition for beam management that is, a case of CSI reporting for beam reporting.
  • the reporting information eg, ReportQuantity
  • the UE sets the higher layer parameter CSI.
  • CSI-RS resources located in different (OFDM) symbols in the time domain have the same spatial filter (ie, the same downlink spatial filter).
  • the UE may not assume that CSI-RS resources located in all symbols of one CSI-RS port are transmitted to the same spatial filter.
  • the spatial filter may mean a beam or the like.
  • CSI reporting according to various time domain behaviors may be set. For example, periodic CSI reporting, semi-persistent CSI reporting, and / or aperiodic CSI reporting may be set and / or indicated as described above.
  • a resource for channel measurement is referred to as a channel measurement resource (CMR)
  • a resource for interference measurement is referred to as an interference measurement resource (IMR).
  • the CMR may be a non-zero power (NZP) CSI-RS resource
  • the IMR may be a ZP CSI-RS resource or a CSI-IM resource.
  • the periodic, semi-persistent, and / or aperiodic CSI Possible (ie, acceptable) combinations of CMR and IMR for reporting may be as indicated by " (O)" in Tables 9, 10, and 11 below.
  • P means periodic characteristics
  • SP means semi-persistent characteristics
  • AP may refer to aperiodic characteristics.
  • Table 9 shows examples of combinations between CMR and IMR for periodic CSI reporting.
  • Table 10 shows examples of combinations between CMR and IMR for semi-persistent CSI reporting.
  • the present specification proposes methods for performing CSI reporting in consideration of a case where a CMR exists but an IMR may not exist. That is, the Case X-1 series (ie, Case X-1, Case X-1 ′) and Case X-2 series (ie, Case X-2, in Tables 9, 10, and / or 11 above) Case X-2 ', Case X-2' ',) are discussed in detail.
  • X may be ⁇ 1, 2, 3 ⁇ .
  • IMR in a combination of periodic CMR and semi-persistent IMR (ie, Case 1-1), IMR is deactivated through MAC-CE to calculate CQI after a certain time (eg, X ms, X slot, X symbol, etc.). If the required IMR is released (ie outdate), only CMR may be present.
  • a certain time e.g. X ms, X slot, X symbol, etc.
  • the IMR is triggered temporarily (via DCI) and after a certain time (e.g. X ms, X slot, X symbol, etc.) If the IMR is released (ie outdate), only CMR may be present.
  • ambiguity may occur for UE operation reporting CQI corresponding to CSI information as the IMR for interference measurement is released (that is, outdate).
  • CMR and IMR have characteristics on different time domains, and IMR for calculating CQI is released, and thus terminal operations that can be considered in the case where only CMR exists are proposed.
  • the first embodiment and the second embodiment propose a terminal operation considering a CMR and IMR combination related to CSI reporting set for CSI acquisition
  • beam management We propose a UE operation that considers a combination of CMR and IMR related to CSI reporting configured for the purpose.
  • CQI calculation and / or reporting may mean calculating and / or reporting a measurement value based on an interference measurement (ie, related to interference).
  • the CQI calculation and / or reporting may be to calculate and / or report a Signal to Interference-plus-Noise Ratiod (SINR) or Signal to Noise Ratio (SNR) related to the interference measurement.
  • SINR Signal to Interference-plus-Noise Ratiod
  • SNR Signal to Noise Ratio
  • Embodiments and / or methods proposed herein may be extended even when CMR and IMR have operating characteristics on the same time domain.
  • the embodiments and / or methods proposed herein may be applied even when only the NZP CSI-RS resource for channel measurement exists in the CSI report setting for CSI acquisition.
  • the UE When the IMR set in the CSI report is released, the UE may be configured to operate according to the original purpose of the CSI report set for CSI acquisition. In other words, when the IMR is released, the terminal may be configured to calculate and / or report the reporting information related to the CSI using the CMR.
  • the UE calculates and / or reports a measurement value (ie, CQI) (eg, SINR, SNR, etc.) related to interference (and / or noise) (hereinafter, , Methods 1-1 to 1-5) will be described in detail.
  • CQI eg, SINR, SNR, etc.
  • the CSI report is set for the CSI acquisition purpose and when the combination of the CMR and the IMR are set in the CSI report.
  • the UE may be configured to measure received power information (for example, reference signal received power (RSRP)) using only the CMR, and then calculate and report the CQI based on the corresponding received power information value.
  • received power information for example, reference signal received power (RSRP)
  • RSRP reference signal received power
  • the terminal puts the RSRP value at the molecular position of the fractional formula and assigns the bandwidth (BandWidth, BW) or the activated bandwidth portion (BandWidth Part) allocated to the terminal at -174 dB / Hz, which is a thermal noise at a temperature of 290 K.
  • the noise power multiplied by the magnitude of BWP) can be placed at the denominator of the fractional formula to calculate the SNR. Thereafter, the terminal may perform CQI reporting based on the calculated SNR value.
  • the reception power information may not be measured in an environment having a low traffic load and / or a noise limited environment of a neighbor cell other than a serving cell. It may be meaningful to perform CQI calculation and reporting based on this.
  • the UE may be configured to perform interference measurement by utilizing that a downlink reference signal (for example, NZP CSI-RS) for CMR use is a known sequence.
  • a downlink reference signal for example, NZP CSI-RS
  • the UE measures channel power through CMR, and then utilizes a downlink reference signal (for example, NZP CSI-RS) for a CMR as a known sequence, and receives a received signal (Rx). Interference can be measured by subtracting a CSI-RS sequence, which is a desired signal from a signal.
  • the received signal may include a signal causing interference with the required CSI-RS.
  • the terminal may calculate the SINR value and perform CQI reporting.
  • the method has an advantage of reporting a meaningful CQI value even when there is interference from neighbor cells. If the magnitude of the interference power is large, the calculated SINR value may be inaccurate.
  • the terminal may be configured to report the sum of the interference power and the noise power. In this case, the terminal may report the sum value as a long-term variable.
  • the UE may calculate an SINR based on the reported sum value, and may perform CQI reporting using the calculated SINR.
  • the time difference between the current CMR set for CSI acquisition and the previous IMR released is a constant time gap (e.g., X ms). , X slot, X symbol, etc.), the UE may consider the summed value reported as expired.
  • the terminal may be set to use another method proposed in the present embodiment instead of the corresponding method.
  • the predetermined time gap may be defined based on the set CSI reporting time point.
  • the parameter related to the predetermined time gap may be set and / or indicated by higher layer signaling from the base station.
  • the base station may perform semi-persistent CSI reporting (eg, semi-persistent CSI reporting through PUCCH).
  • semi-persistent CSI reporting eg, semi-persistent CSI reporting through PUCCH.
  • one constant time gap value may be set and / or indicated using MAC-CE.
  • the base station reports semi-persistent CSI (eg, semi-persistent CSI reporting through PUSCH) and When the aperiodic CSI report is triggered, one constant time gap value may be set and / or indicated using a DCI field.
  • semi-persistent CSI eg, semi-persistent CSI reporting through PUSCH
  • the base station may set the sum of interference power and noise power to the terminal based on the sum of the long-term characteristics reported from the terminal.
  • the base station may set a plurality of values (eg, N), and the base station may set one of the plurality of values through higher layer signaling.
  • the base station may perform semi-persistent CSI reporting (eg, semi-persistent through PUCCH). When activating CSI reporting), one value may be set and / or indicated using MAC-CE.
  • the base station sets the set (ie, candidates) for the predetermined time gap to the terminal through higher layer signaling or the like, the corresponding base station reports semi-persistent CSI (eg, semi-persistent CSI reporting through PUSCH) and When triggering aperiodic CSI reporting, the DCI log 2 N bit value may be used to set and / or indicate one constant time gap value.
  • semi-persistent CSI eg, semi-persistent CSI reporting through PUSCH
  • the DCI log 2 N bit value may be used to set and / or indicate one constant time gap value.
  • the terminal may measure channel power required by CMR only based on the sum of interference power and noise power set by the base station, calculate SINR, and perform CQI reporting using the calculated SINR. .
  • the UE may be configured to always expect that the CMR and the operation in the time domain are set to default IMRs for the same back-up purpose.
  • the IMR for back-up use may mean an (separate) IMR having operating characteristics on the same time domain as the CMR set in the CSI report.
  • the semi-persistent IMR may be activated or the aperiodic IMR may be triggered.
  • the UE may perform CQI calculation and / or reporting in the same manner as CMR and / or IMR-based CSI reporting having existing operating characteristics on the same time domain.
  • the UE performs CQI reporting by measuring the interference through the corresponding IMR, or performs more accurate interference measurement by using both the IMR for the back-up use and the IMR other than the back-up use. After performing, the CQI report may be performed.
  • the basic report setting means a default report setting set in consideration of the sameness of operation characteristics in the time domain
  • the auxiliary report setting means a report setting additionally set and / or indicated by the base station or the like except for the default report setting.
  • Information (or parameters) about the relationship between the primary report (ie, primary CSI report) and the secondary report (ie, secondary CSI report) may be configured and / or indicated by the base station through higher layer signaling or the like.
  • the terminal may determine the IMR for the primary reporting setting and the IMR for the secondary reporting setting. You can perform accurate interference measurement using all of them, or perform interference measurement using only IMR for basic report setting. Through such interference measurement, the UE may perform CQI reporting.
  • the UE may use CMR (eg, NZP CSI-RS) for auxiliary report configuration as NZP CSI-RS based interference measurement (eg, precoded CSI-RS) for MU interference measurement.
  • CMR eg, NZP CSI-RS
  • the presence or absence of the other terminal may be based on the existence of a port (rate) indicated in the rate matching (rate matching) in the DMRS symbol and / or whether or not Code Division Multiplexing (CDM) group configuration.
  • the base station may configure resources of the periodic, semi-persistent, and / or aperiodic CMR and the periodic, semi-persistent, and / or aperiodic IMR combination in conjunction with (ie, in connection with) the CSI reporting setup.
  • CMR when CMR is set to RRC, activated (via MAC-CE), or triggered (via DCI), the base station starts from starting timing in the time domain of the CMR resource to ending timing.
  • RMR can be set, activated (via MAC-CE), or triggered (via DCI) as long as the IMR resource is not released within a predetermined time (eg, L ms, L slot, L symbol, etc.).
  • the terminal may also be configured to expect the base station to operate in this manner.
  • the interval on the time domain between the IMR resources transmitted within the predetermined time may be the above-described constant time gap (eg X ms, X slot, X symbol, etc.). It may be set not to exceed (ie, not to release the IMR).
  • RRC is set in association with the corresponding CMR, or is activated (via MAC-CE), or ( Triggered IMR resources must be transmitted).
  • RRC is established or activated (via MAC-CE) in association with the corresponding CMR.
  • the triggering IMR resource (via DCI) shall be transmitted.
  • CMR and IMR exist together without being released, there may be no ambiguity in reporting CSI information (eg, CQI).
  • the UE may perform CQI reporting in the same manner as CMR and / or IMR-based CSI reporting having the same operation characteristics in the existing time domain. .
  • the base station since the base station sets the RRC, activates or deactivates (via MAC-CE), or triggers (via DCI), the CMR exists and the IMR does not exist. In other words, the state in which the IMR is released can be implicitly recognized. Accordingly, the base station may implicitly recognize that only the CMR is valid, and from the time when only the CMR is expected to be valid (that is, from the time when the IMR is expected to be released), the methods described above by the terminal Rough CSI information (eg, CQI information) in 1-1, 1-2, 1-3, etc. may be determined to be transmitted through CSI reporting.
  • the terminal Rough CSI information eg, CQI information
  • flag information indicating that only CMR is valid may be separately set to a higher layer signaling parameter or the like, so that the UE reports CSI reporting (periodic, semi-persistent, and / or aperiodic) to the base station.
  • CSI information eg, CQI information
  • CQI information may be explicitly informed using the flag information that the information is approximate.
  • the base station that recognizes that the approximate CSI information is to be reported in an implicit or explicit manner is more conservative Modulation and Coding Scheme (MCS) compared to the reported CSI information (eg, CQI information).
  • MCS Modulation and Coding Scheme
  • the value may be set and / or indicated to the terminal.
  • the base station may provide a user equipment based on the newly defined (or configured) CQI table.
  • MCS values may be set and / or indicated.
  • the UE When the IMR set in the CSI reporting is released, the UE operates only for CSI reporting for beam management unlike the original purpose of CSI reporting configured for CSI acquisition using only CMR (eg, NZP CSI-RS). It can be set to.
  • CMR eg, NZP CSI-RS
  • the CSI report is set for CSI acquisition purposes and the combination of CMR and IMR is set in the CSI report.
  • the UE reports information on a received power (for example, RSRP) using only CMR, which may correspond to CSI reporting based on CSI-RS for beam management. That is, the terminal may perform a quality report on the Tx beam of the serving cell.
  • a received power for example, RSRP
  • the UE assumes that the repetitive configuration (eg, CSI-RS-ResourceRep) of the CSI-RS resource set to the NZP CSI-RS resource configuration (for example, NZP CSI-RS-ResourceConfig) is 'ON'.
  • the Rx spatial filter may be changed to perform an Rx beam alignment operation (ie, a beam sweeping operation).
  • the terminal may report CSI related reporting information (for example, CSI-related quantity) for CSI acquisition to the base station.
  • CSI related reporting information for example, CSI-related quantity
  • the UE reports RSRP-related report information (eg, RSRP-related quantity) (ie, information for reporting on beam management purposes) and beam alignment. You can perform the operation.
  • the terminal in the case of CSI-RS configured for beam management, one or two (antenna) ports may be configured in the terminal.
  • the original purpose of the CSI reporting for the existing CSI acquisition use for example, CSI-related quantity for ReportQuantity
  • four or more ports of CSI-RS resources may be set. Therefore, when the terminal reports RSRP for beam management purposes when the IMR does not exist or is released, the terminal has the lowest port number among four or more ports configured for CSI reporting for conventional CSI acquisition.
  • RSRP value can be reported using one or two ports.
  • the method 2-1 may be limited to being applied only when the number of ports configured for the original CSI acquisition purpose is one or two.
  • the terminal may measure RSRP from four or more configured ports and report an RSRP value by taking an average value.
  • the basic reporting configuration may be dedicated for reporting downlink CSI information for CSI acquisition.
  • the information (or parameter) on the relationship between the primary report (i.e., primary CSI report) and the secondary report (i.e., secondary CSI report) is higher layer signaling or the like. It may be set and / or indicated by the base station via.
  • the reporting information (eg, ReportQuantity), which is a higher layer parameter of the corresponding reporting setting, is related to the CSI. CSI-related quantity).
  • the reporting information e.g. ReportQuantity
  • the reporting information is based on only the CMR measurement, RSRP-related quantity).
  • a parameter eg, ReportQuantity parameter
  • ReportQuantity parameter for the existing semi-statically set report information may be quickly switched depending on whether IMR is set.
  • a combination of report information related to CSI and report information related to RSRP may be additionally supported in a parameter that can be set as report information (eg, ReportQuantity) of CSI reporting.
  • the upper layer parameter ReportQuantity is ⁇ CRI / RI / PMI / CQI, CRI / RI / i1, CRI / RI / i1 / CQI, CRI / RI / CQI, CRI / RI / LI / PMI / CQI ⁇ + ⁇ CRI / RSRP ⁇ .
  • the method 2-1 and / or 2-2 in the above-described second embodiment is utilized. Reporting of downlink CSI information may be omitted. Therefore, when the methods 2-1 and / or 2-2 in the above-described second embodiment are applied, the terminal includes a dedicated report setting for reporting the reporting information related to at least one CSI. You can expect to have at least two reporting settings. Through this, the above-described methods 2-1 and / or 2-2 may be applied to other report settings except for the dedicated report setting for reporting the CSI-related report information. That is, in any case, since the terminal may report the reporting information related to the CSI to the base station (by default), there is an advantage of eliminating the reporting omission of the downlink CSI information.
  • the terminal may report the reporting information related to the CSI to the base station (by default), there is an advantage of eliminating the reporting omission of the downlink CSI information.
  • a dedicated report setting for reporting report information related to the CSI may be defined using a method of setting the basic report setting and / or the auxiliary report setting.
  • the above-described methods in the second embodiment are applied, and if the dedicated report setting does not exist, reporting the report information related to the CSI.
  • the method of the above-described first embodiment may be set to be applied.
  • the base station since the base station sets the RRC, activates or deactivates (via MAC-CE), or triggers (via DCI) the CMR and IMR, the CMR exists and the IMR does not exist, that is, In this case, the state in which the IMR is released can be implicitly recognized. Accordingly, the base station may implicitly recognize that only the CMR is valid, and from the time when only the CMR is expected to be valid (that is, from the time when the IMR is expected to be released), the methods described above by the terminal It may be determined that the CSI report (eg, RSRP) for beam management purposes in 2-1, 2-2, etc. will be delivered.
  • the CSI report eg, RSRP
  • the UE when the UE performs CSI reporting (periodic, semi-persistent, and / or aperiodic) to the base station, the corresponding CSI
  • the flag information may be explicitly informed that the report is a CSI report (eg, RSRP) for beam management.
  • the base station that recognizes that the CSI report (eg, RSRP) for beam management is to be delivered in an implicit or explicit manner, fixes the Tx spatial filter as in the above-described method 2-1, One may expect a beam management procedure (eg, a reception beam alignment procedure of the terminal) of the terminal.
  • CSI report eg, RSRP
  • a beam management procedure eg, a reception beam alignment procedure of the terminal
  • the methods proposed in the first embodiment and the methods proposed in the second embodiment may be used or applied independently, or may be used or applied in a mixed form such as some combinations.
  • the semi-persistent IMR is i) deactivated, or ii) the most recently set IMR after deactivation is greater than a certain time gap (e.g., X ms, X slots, X symbols, etc.).
  • a certain time gap e.g., X ms, X slots, X symbols, etc.
  • aperiodic IMR is not i) triggered, or ii) the most recently set IMR after a temporary trigger is a certain time gap (e.g., X ms, X slot, X symbol, etc.).
  • a certain time gap e.g., X ms, X slot, X symbol, etc.
  • the non-periodic IMR is not triggered in the state where the semi-persistent CMR is activated, or ii) the IMR most recently set after the temporary trigger is a certain time gap (e.g., : X ms, X slot, X symbol, etc.), the methods proposed in the first embodiment and the methods proposed in the second embodiment may be applied.
  • a certain time gap e.g., : X ms, X slot, X symbol, etc.
  • CSI reporting is set as a periodic characteristic, but since CSI reporting is determined according to whether aperiodic CMR and aperiodic IMR are triggered, CSI reporting may be regarded as aperiodic. .
  • the UE may be configured not to expect a case in which IMR is activated or triggered in a situation where CMR does not exist.
  • CSI reporting is set as a semi-persistent characteristic, but since CSI reporting is determined according to whether aperiodic CMR and aperiodic IMR are triggered, aperiodic As a characteristic, CSI reporting may be considered to be performed.
  • the method proposed in the first embodiment and the method proposed in the second embodiment in the same manner as in the case of the periodic CSI reporting described above when the CSI reporting is triggered. Methods can be applied.
  • CSI reporting for beam management may refer to CSI reporting in which report information (eg, ReportQuantity) is report information related to RSRP.
  • the UE can measure the interference through the newly associated IMR, and can report the CQI of the base station transmission beam (Tx beam) corresponding to the CMR for RSRP measurement to the base station.
  • the UE performs interference measurement using the newly associated IMR, and reports the interference measurement value (eg SINR, SNR, etc.) of the corresponding base station transmission beam on which the NZP CSI-RS for RSRP measurement is reported to the base station. can do.
  • association of the IMR may mean that a periodic IMR is set (via RRC signaling, etc.) and linked to the CSI report setting.
  • the IMR may be associated, which may mean that the semi-persistent IMR is configured (via RRC signaling, etc.) and activated through MAC-CE, thereby interworking with the CSI reporting configuration.
  • association of the IMR may mean that aperiodic IMR is configured (via RX signaling, etc.), and linked to the CSI reporting configuration as triggered through DCI.
  • the UE may not only receive power information (eg, RSRP) for each transmission beam of the base station in the beam management operation, but also information related to interference measurement (ie, CQI) (eg, SINR, SNR).
  • CRI can be reported in consideration of And / or the UE reports CRI and information related to interference measurement (ie, CQI) (eg, SINR, SNR, etc.) together with an index of a specific beam (eg, best beam) among base station transmission beams.
  • Information related to interference measurements ie, CQI
  • CQI eg SINR, SNR, etc.
  • the terminal may omit reporting of information related to interference measurement (ie, CQI) (eg, SINR, SNR, etc.) to the base station.
  • CQI information related to interference measurement
  • the UE performs the interference measurement using the CMR, then information related to the interference measurement (ie, CQI) (eg SINR, SNR Etc.) may be reported to the base station.
  • report information (eg, ReportQuantity), which is an upper layer parameter of report setting, may be changed depending on whether IMR is set. Accordingly, in consideration of this, a combination of report information related to CSI and report information related to RSRP may be additionally supported in a parameter that can be set as report information (eg, ReportQuantity) of CSI reporting.
  • the upper layer parameter ReportQuantity is ⁇ CRI / RI / PMI / CQI, CRI / RI / i1, CRI / RI / i1 / CQI, CRI / RI / CQI, CRI / RI / LI / PMI / CQI ⁇ + ⁇ CRI / RSRP ⁇ .
  • the base station since the base station sets the RRC, activates or deactivates (via MAC-CE), or triggers (via DCI), the base station is used for beam management purposes. It may implicitly recognize the case where the IMR is linked to the CSI reporting setup and the RRC is configured, activated (via MAC-CE), or triggered (via DCI). Accordingly, the base station includes information related to interference measurement (ie, CQI) (eg, SINR, SNR, etc.) according to the method described above by the terminal from the time when the IMR is expected to be linked to the CSI report setting for beam management. It may be determined that the CSI report for beam management purposes will be delivered.
  • CQI information related to interference measurement
  • flag information indicating that IMR will be linked to CSI report setting for beam management is set as a higher layer signaling parameter or the like, so that the UE (periodic, semi-persistent, and / or aperiodic) CSI is transmitted to the base station.
  • the flag information may be explicitly informed that the CSI report is a CSI report for beam management purposes including information related to interference measurement (ie, CQI) (eg, SINR, SNR, etc.).
  • 8 is a flowchart illustrating an operation of a terminal for performing channel state information reporting to which the method proposed in the present specification can be applied. 8 is merely for convenience of description and does not limit the scope of the present invention.
  • a terminal performs channel state information report (CSI report) for beam management (eg, terminal operation in the third embodiment).
  • CSI report channel state information report
  • the UE may receive (from the base station) information on a report setting (eg, CSI report setting) related to the CSI report (S805).
  • a report setting eg, CSI report setting
  • the information on the report configuration may be delivered through higher layer signaling (eg, RRC signaling, etc.).
  • the information on the resource configuration i) a first resource for channel measurement (for example CMR in the third embodiment) and / or ii) an interference measurement (interference measurement) It may be associated with (or associated with) at least one of two resources (eg, IMR in the third embodiment).
  • the report setting includes setting (eg, ReportQuantity) for report information of the CSI report, wherein the report information includes: i) report information related to CSI, ii) report information related to RSRP, and / or iii) CSI reporting. It may include at least one of a combination of related reporting information and reporting information related to RSRP.
  • the reporting information may be ⁇ CRI / RI / PMI / CQI, CRI / RI / i1, CRI / RI / i1 / CQI, CRI / RI / CQI, CRI / RI / LI / PMI / CQI ⁇ + ⁇ CRI / RSRP ⁇ may also be included.
  • the terminal receives (from the base station) a downlink reference signal (for example, CSI-RS, CSI-IM, etc.) for the CSI report through at least one of the first resource and / or the second resource. It may be (S810).
  • a downlink reference signal for example, CSI-RS, CSI-IM, etc.
  • the terminal may perform the CSI report on the base station by using the measured value based on the downlink reference signal (S815).
  • the measured value is i) the first downlink received through the first resource.
  • Measurement values for received power based on the link reference signal e.g., RSRP
  • ii) Measurement values for interference measurement based on the second downlink reference signal received via the second resource e.g., CQI, i.e., SINR, SNR, etc.
  • CQI i.e., SINR, SNR, etc.
  • the first resource may be an NZP CSI-RS resource for the channel measurement
  • the second resource may be a ZP CSI-RS resource for the interference measurement
  • the terminal activates the second resource (Medium Access Control-Control Element, MAC-CE). Or downlink control information (DCI) for triggering the second resource.
  • the second resource Medium Access Control-Control Element, MAC-CE.
  • DCI downlink control information
  • the terminal may transmit flag information (eg, flag information in the third embodiment) indicating that the setting of the second resource is related to the information on the resource setting to the base station.
  • flag information eg, flag information in the third embodiment
  • 9 is a flowchart illustrating an operation of a base station receiving a channel state information report to which the method proposed in the present specification may be applied. 9 is merely for convenience of description and does not limit the scope of the invention.
  • the terminal performs channel state information reporting (CSI reporting) for beam management (eg, terminal operation in the third embodiment).
  • CSI reporting channel state information reporting
  • the base station may transmit information (eg, a terminal) on a report setting (eg, CSI report setting) related to the CSI report (S905).
  • a report setting eg, CSI report setting
  • the information on the report configuration may be delivered through higher layer signaling (eg, RRC signaling, etc.).
  • the information on the resource configuration i) a first resource for channel measurement (for example CMR in the third embodiment) and / or ii) an interference measurement (interference measurement) It may be associated with (or associated with) at least one of two resources (eg, IMR in the third embodiment).
  • the report setting includes setting (eg, ReportQuantity) for report information of the CSI report, wherein the report information includes: i) report information related to CSI, ii) report information related to RSRP, and / or iii) CSI reporting. It may include at least one of a combination of related reporting information and reporting information related to RSRP.
  • the reporting information may be ⁇ CRI / RI / PMI / CQI, CRI / RI / i1, CRI / RI / i1 / CQI, CRI / RI / CQI, CRI / RI / LI / PMI / CQI ⁇ + ⁇ CRI / RSRP ⁇ may also be included.
  • the base station transmits (as a terminal) a downlink reference signal (eg, CSI-RS, CSI-IM, etc.) for the CSI report through at least one of the first resource and / or the second resource. It may be (S910).
  • a downlink reference signal eg, CSI-RS, CSI-IM, etc.
  • the base station may receive a CSI report from the terminal using the measurement value based on the downlink reference signal (S915).
  • the measured value is i) the first downlink received through the first resource.
  • Measurement values for received power based on the link reference signal e.g., RSRP
  • ii) Measurement values for interference measurement based on the second downlink reference signal received via the second resource e.g., CQI, i.e., SINR, SNR, etc.
  • CQI i.e., SINR, SNR, etc.
  • the first resource may be an NZP CSI-RS resource for the channel measurement
  • the second resource may be a ZP CSI-RS resource for the interference measurement
  • the base station activates the second resource (Medium Access Control-Control Element, MAC-CE). Or downlink control information (DCI) for triggering the second resource.
  • the second resource Medium Access Control-Control Element, MAC-CE.
  • DCI downlink control information
  • the base station may receive from the terminal flag information (eg, flag information in the third embodiment) indicating that the setting of the second resource is related to the information on the resource setting.
  • flag information eg, flag information in the third embodiment
  • FIG. 10 illustrates a wireless communication device according to an embodiment of the present invention.
  • a wireless communication system may include a first device 1010 and a second device 1020.
  • the first device 1010 includes a base station, a network node, a transmission terminal, a reception terminal, a wireless device, a wireless communication device, a vehicle, a vehicle equipped with an autonomous driving function, a connected car, a drone (Unmanned Aerial Vehicle, UAV (Artificial Intelligence) Module, Robot, Augmented Reality Device, Virtual Reality Device, Mixed Reality Device, Hologram Device, Public Safety Device, MTC Device, IoT Device, Medical Device, Pin It may be a tech device (or financial device), a security device, a climate / environment device, a device related to 5G service, or another device related to the fourth industrial revolution field.
  • UAV Artificial Intelligence
  • the second device 1020 may include a base station, a network node, a transmitting terminal, a receiving terminal, a wireless device, a wireless communication device, a vehicle, a vehicle equipped with an autonomous driving function, a connected car, a drone (Unmanned Aerial Vehicle, UAV (Artificial Intelligence) Module, Robot, Augmented Reality Device, Virtual Reality Device, Mixed Reality Device, Hologram Device, Public Safety Device, MTC Device, IoT Device, Medical Device, Pin It may be a tech device (or financial device), a security device, a climate / environment device, a device related to 5G service, or another device related to the fourth industrial revolution field.
  • UAV Artificial Intelligence
  • the terminal may be a mobile phone, a smart phone, a laptop computer, a digital broadcasting terminal, a personal digital assistant (PDA), a portable multimedia player (PMP), navigation, a slate PC, a tablet. It may include a tablet PC, an ultrabook, a wearable device (eg, a smartwatch, a glass glass, a head mounted display), and the like.
  • the HMD may be a display device worn on the head.
  • the HMD can be used to implement VR, AR or MR.
  • a drone may be a vehicle in which humans fly by radio control signals.
  • the VR device may include a device that implements an object or a background of a virtual world.
  • the AR device may include a device that connects and implements an object or a background of the virtual world to an object or a background of the real world.
  • the MR device may include a device that fuses and implements an object or a background of the virtual world to an object or a background of the real world.
  • the hologram device may include a device that records and reproduces stereoscopic information to implement a 360 degree stereoscopic image by utilizing interference of light generated by two laser lights, called holography, to meet each other.
  • the public safety device may include an image relay device or an image device wearable on a human body of a user.
  • the MTC device and the IoT device may be devices that do not require direct human intervention or manipulation.
  • the MTC device and the IoT device may include a smart meter, a bending machine, a thermometer, a smart bulb, a door lock or various sensors.
  • a medical device may be a device used for the purpose of diagnosing, treating, alleviating, treating or preventing a disease.
  • a medical device may be a device used for the purpose of diagnosing, treating, alleviating or correcting an injury or disorder.
  • a medical device may be a device used for the purpose of inspecting, replacing, or modifying a structure or function.
  • the medical device may be a device used for controlling pregnancy.
  • the medical device may include a medical device, a surgical device, an (extracorporeal) diagnostic device, a hearing aid or a surgical device, and the like.
  • the security device may be a device installed to prevent a risk that may occur and to maintain safety.
  • the security device may be a camera, a CCTV, a recorder or a black box.
  • the fintech device may be a device capable of providing financial services such as mobile payment.
  • the fintech device may include a payment device or a point of sales (POS).
  • the climate / environmental device may include a device that monitors or predicts the climate / environment.
  • the first device 1010 may include at least one or more processors, such as a processor 1011, at least one or more memories, such as a memory 1012, and at least one or more transceivers, such as a transceiver 1013.
  • processors such as a processor 1011
  • memories such as a memory 1012
  • transceivers such as a transceiver 1013.
  • the processor 1011 may perform the functions, procedures, and / or methods described above. For example, when the first device 1010 is the base station described herein, the processor 1011 may control to perform the operations of FIG. 9 described above. As a specific example, the processor 1011 may control to transmit information about a report setting (for example, CSI report setting) related to CSI reporting (related to S905 of FIG. 9). In addition, the processor 1011 may control to transmit a downlink reference signal for CSI reporting through at least one of a first resource and / or a second resource (related to S910 of FIG. 9). In addition, the processor 1011 may control to receive a CSI report using a measurement value based on the downlink reference signal (related to S915 of FIG. 9). In addition, although not shown in FIG. 10, the processor 1011 may include components, elements, units, modules, and the like that perform each operation of FIG. 9.
  • the processor 1011 may perform one or more protocols.
  • the processor 1011 may perform one or more layers of a radio interface protocol.
  • the memory 1012 may be connected to the processor 1011 and store various types of information, instructions, and / or instructions.
  • the memory 1012 may store information, instructions, and / or instructions for the operations in FIG. 9 described above.
  • the memory 1012 may include one of a first command (related to S905 of FIG. 9), a first resource, and / or a second resource that controls to transmit information about a report setting (eg, CSI report setting) related to CSI reporting.
  • a second command (relating to S910 of FIG.
  • the transceiver 1013 may be connected to the processor 1011 and controlled to transmit and receive a wireless signal.
  • the second device 1020 may include at least one processor, such as the processor 1021, at least one or more memory devices, such as the memory 1022, and at least one transceiver, such as the transceiver 1023.
  • the processor 1021 may perform the functions, procedures, and / or methods described above. For example, when the second device 1020 is the terminal described above, the processor 1021 may control to perform the operations of FIG. 8 described above. As a specific example, the processor 1021 may control to receive information about a report setting (eg, CSI report setting) related to CSI reporting (related to S805 of FIG. 8). In addition, the processor 1021 may control to receive a downlink reference signal for CSI reporting through at least one of a first resource and / or a second resource (related to S810 of FIG. 8). In addition, the processor 1021 may control to perform CSI reporting by using the measured value based on the downlink reference signal (related to S815 of FIG. 8). In addition, although not shown in FIG. 10, the processor 1021 may include components, elements, units, modules, and the like that perform each operation in FIG. 8 described above.
  • a report setting eg, CSI report setting
  • the processor 1021 may control to receive a downlink reference signal for CSI
  • the processor 1021 may implement one or more protocols.
  • the processor 1021 may implement one or more layers of a radio interface protocol.
  • the memory 1022 may be connected to the processor 1021 and store various types of information and / or instructions.
  • the memory 1022 may store information, instructions, and / or instructions for the operations in FIG. 8 described above.
  • the memory 1022 may include one of a first command (related to S805 of FIG. 8), a first resource, and / or a second resource that controls to receive information about a report setting (eg, CSI report setting) related to CSI reporting.
  • the transceiver 1023 is connected to the processor 1021 and may be controlled to transmit and receive a wireless signal.
  • the memory 1012 and / or the memory 1022 may be connected to each other inside or outside the processor 1011 and / or the processor 1021, and may be connected to other processors through various technologies such as a wired or wireless connection. It may also be connected to.
  • the first device 1010 and / or the second device 1020 may have one or more antennas.
  • antenna 1014 and / or antenna 1024 may be configured to transmit and receive wireless signals.
  • first device 1010 and / or the second device 1020 may include some components, circuits (such as semiconductors, chips, processing units, etc.) installed or implemented in the device. circuit) or the like.
  • the transceivers 1013 and 1023 and the antennas 1014 and 1024 may be omitted from the first device 1010 and / or the second device 1020.
  • the memory 1012, 1022 may include a computer and / or any computer readable storage medium that may be used by the processors 1011, 1021.
  • the memories 1012 and 1022 may include random access memory (RAM), dynamic random access memory (DRAM), read only memory (ROM), flash memory, volatile memory, and non- Non-volatile memory and / or combinations thereof.
  • FIG. 11 is another example of a block diagram of a wireless communication apparatus to which the methods proposed herein may be applied.
  • the device 1110 and the device 1120 illustrated in FIG. 11 may further embody the first device 1010 and the second device 1020 of FIG. 10.
  • a wireless communication system includes a base station 1110 and a plurality of terminals 1120 located in a base station area.
  • the base station may be represented by a transmitting device
  • the terminal may be represented by a receiving device, and vice versa.
  • the base station and the terminal may include at least one or more processors such as processors 1111 and 1121, at least one or more memories such as memories 1114 and 1124, and one or more Tx / Rx RF modules 1115 and 1125. , Tx processors 1112 and 1122, Rx processors 1113 and 1123, and antennas 1116 and 1126.
  • the encoded and modulated symbols are divided into parallel streams, each stream mapped to an OFDM subcarrier, multiplexed with a reference signal (RS) in the time and / or frequency domain, and using an Inverse Fast Fourier Transform (IFFT).
  • RS reference signal
  • IFFT Inverse Fast Fourier Transform
  • the OFDM stream is spatially precoded to produce multiple spatial streams.
  • Each spatial stream may be provided to a different antenna 1116 via a separate Tx / Rx module (or transceiver 1115).
  • Each Tx / Rx module can modulate an RF carrier with each spatial stream for transmission.
  • each Tx / Rx module (or transceiver 1125) receives a signal through each antenna 1126 of each Tx / Rx module.
  • Each Tx / Rx module recovers information modulated onto an RF carrier and provides it to a receive (RX) processor 1123.
  • the RX processor implements the various signal processing functions of layer 1.
  • the RX processor may perform spatial processing on the information to recover any spatial stream destined for the terminal. If multiple spatial streams are directed to the terminal, they may be combined into a single OFDMA symbol stream by multiple RX processors.
  • the RX processor uses fast Fourier transform (FFT) to convert the OFDMA symbol stream from the time domain to the frequency domain.
  • FFT fast Fourier transform
  • the frequency domain signal includes a separate OFDMA symbol stream for each subcarrier of the OFDM signal.
  • the symbols and reference signal on each subcarrier are recovered and demodulated by determining the most likely signal placement points sent by the base station. Such soft decisions may be based on channel estimate values. Soft decisions are decoded and deinterleaved to recover the data and control signals originally sent by the base station on the physical channel. Corresponding data and control signals are provided to the processor 1121.
  • the UL (communication from terminal to base station) is processed at base station 1110 in a manner similar to that described with respect to receiver functionality at terminal 1120.
  • Each Tx / Rx module 1125 receives a signal through each antenna 1126.
  • Each Tx / Rx module provides an RF carrier and information to the RX processor 1123.
  • the processor 1121 may be associated with a memory 1124 that stores program code and data.
  • the memory may be referred to as a computer readable medium.
  • the wireless device includes a base station, a network node, a transmitting terminal, a receiving terminal, a wireless device, a wireless communication device, a vehicle, a vehicle equipped with an autonomous driving function, an unmanned aerial vehicle (UAV), an artificial intelligence (AI) module, Robots, Augmented Reality (AR) devices, Virtual Reality (VR) devices, MTC devices, IoT devices, medical devices, fintech devices (or financial devices), security devices, climate / environmental devices, or other areas of the fourth industrial revolution, or It may be a device related to the 5G service.
  • a drone may be a vehicle in which humans fly by radio control signals.
  • the MTC device and the IoT device are devices that do not require human intervention or manipulation, and may be smart meters, bending machines, thermometers, smart bulbs, door locks, various sensors, and the like.
  • a medical device is a device used for the purpose of inspecting, replacing, or modifying a device, structure, or function used for diagnosing, treating, alleviating, treating or preventing a disease. In vitro) diagnostic devices, hearing aids, surgical devices, and the like.
  • the security device is a device installed to prevent a risk that may occur and maintain safety, and may be a camera, a CCTV, a black box, or the like.
  • the fintech device is a device that can provide financial services such as mobile payment, and may be a payment device or a point of sales (POS).
  • the climate / environmental device may mean a device for monitoring and predicting the climate / environment.
  • the terminal is a mobile phone, a smart phone, a laptop computer, a digital broadcasting terminal, a personal digital assistant (PDA), a portable multimedia player (PMP), navigation, a slate PC, a tablet PC. (tablet PC), ultrabook, wearable device (e.g. smartwatch, glass glass, head mounted display), foldable device And the like.
  • the HMD is a display device of a type worn on the head and may be used to implement VR or AR.
  • Embodiments according to the present invention may be implemented by various means, for example, hardware, firmware, software, or a combination thereof.
  • an embodiment of the present invention may include one or more application specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), and FPGAs ( field programmable gate arrays), processors, controllers, microcontrollers, microprocessors, 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
  • an embodiment of the present invention may be implemented in the form of a module, procedure, function, etc. that performs the functions or operations described above.
  • the software code may be stored in memory and driven by the processor.
  • the memory may be located inside or outside the processor, and may exchange data with the processor by various known means.
  • the method of transmitting and receiving channel state information in the wireless communication system of the present invention has been described with reference to examples applied to 3GPP LTE / LTE-A system and 5G system (New RAT system), but can be applied to various wireless communication systems. Do.

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Abstract

L'invention concerne un procédé pour la transmission et la réception d'informations d'état de canal dans un système de communication sans fil, et un appareil associé. De façon plus spécifique, un procédé de création d'un rapport d'informations d'état de canal (CSI) pour une gestion de faisceau dans un système de communication sans fil peut comprendre les étapes consistant à : recevoir des informations relatives à une configuration de création de rapport en vue de la création du rapport de CSI, des informations relatives à une configuration de ressource étant associées à i) une première ressource pour une mesure de canal et/ou ii) une seconde ressource pour une mesure d'interférence ; recevoir un signal de référence de liaison descendante pour le rapport de CSI via la première ressource et/ou la seconde ressource ; et créer le rapport de CSI sur une station de base à l'aide d'une valeur de mesure basée sur le signal de référence de liaison descendante.
PCT/KR2019/005749 2018-05-16 2019-05-13 Procédé de création de rapport d'informations d'état de canal dans un système de communication sans fil, et appareil associé WO2019221471A1 (fr)

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WO2024026975A1 (fr) * 2022-08-01 2024-02-08 Qualcomm Incorporated Créneau de ressource de référence de domaine temporel découplé d'un créneau d'ancrage de chronologie

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US9374719B2 (en) * 2013-04-03 2016-06-21 Qualcomm Incorporated Channel state information reference signal (CSI-RS) handling for network assisted interference cancellation
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KR20170110570A (ko) * 2015-01-30 2017-10-11 삼성전자주식회사 비면허 스펙트럼 상에서 채널 상태 정보 측정 구성 및 보고를 위한 방법 및 장치

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WO2021226863A1 (fr) * 2020-05-13 2021-11-18 Qualcomm Incorporated Mode différentiel pour rapport d'informations d'état de canal spécifique aux interférences
CN114390554A (zh) * 2020-10-20 2022-04-22 维沃移动通信有限公司 信道状态信息确定方法、上报设置确定方法、装置及相关设备
WO2022152118A1 (fr) * 2021-01-18 2022-07-21 维沃移动通信有限公司 Procédé et appareil de configuration de ressources de mesure, et dispositif associé
CN114826519A (zh) * 2021-01-18 2022-07-29 维沃移动通信有限公司 测量资源配置方法、装置及相关设备
CN115150025A (zh) * 2021-03-30 2022-10-04 维沃移动通信有限公司 Csi反馈方法、相关设备及可读存储介质
CN115150025B (zh) * 2021-03-30 2024-02-09 维沃移动通信有限公司 Csi反馈方法、相关设备及可读存储介质
WO2024020911A1 (fr) * 2022-07-28 2024-02-01 Qualcomm Incorporated Techniques de mesure de canal avec gestion prédictive de faisceau
WO2024026975A1 (fr) * 2022-08-01 2024-02-08 Qualcomm Incorporated Créneau de ressource de référence de domaine temporel découplé d'un créneau d'ancrage de chronologie

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