Method executed by user equipment, and user equipment
By applying AI/ML models in user equipment to determine the priority of CSI reporting and using formulas to calculate it, the problems of accuracy and priority management of CSI reporting in wireless communication are solved, achieving more efficient CSI reporting and channel state prediction, and improving the transmission reliability of NR air interface.
Patent Information
- Application Number
- PCT/CN2025/107882
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- Priority Date
- 2024-07-11
- Filing Date
- 2025-07-10
- Publication Date
- 2026-01-15
AI Technical Summary
In wireless communication, existing technologies struggle to effectively leverage artificial intelligence/machine learning (AI/ML) to improve the accuracy and priority management of CSI reporting, particularly in determining priorities among various CSI reporting methods to enhance the accuracy of channel state information and reduce overhead.
By applying AI/ML models in user equipment (UE), the priority of CSI reporting is determined, and the priority order is calculated using formulas to ensure that CSI reporting using AI/ML models has higher priority. Aperiodic CSI-RS resources are also indicated in the DCI to improve the accuracy and predictive capability of channel state measurement.
It improves the accuracy of CSI reporting, saves CSI reporting overhead, enhances the reliability of downlink transmission in the NR air interface, and improves the predictive ability of channel state by measuring channel state values in different time slots.
Smart Images

Figure CN2025107882_15012026_PF_FP_ABST
Abstract
Description
Methods executed by user equipment and user equipment Technical Field
[0001] This invention relates to the field of wireless communication technology, and more particularly to a method performed by a user equipment and a corresponding user equipment. Background Technology
[0002] In Rel-15NR, user equipment (UE) can perform various downlink channel measurements and channel state information (CSI) reports based on network configuration information. The measurement configuration and corresponding reporting methods are configured through a reporting configuration, represented in the 3GPP protocol by the RRC parameter CSI-ReportConfig. Specifically, the reporting configuration includes the following three aspects:
[0003] 1) The number of measurements reported, i.e. how many measurement items need to be reported to the network.
[0004] A measurement report needs to explicitly configure which measurement items the user equipment (UE) needs to report. For example, a measurement report may include three items: Channel Quality Indicator (CQI), Channel Rank Indicator (RI), and Precoder Matrix Indicator (PMI), collectively referred to as Channel State Information. A measurement report can also include only one item, such as reporting the received signal strength, called Reference Signal Received Power (RSRP). RSRP is also a critical measurement, typically used in higher-level Radio Resource Management (RRM). In NR, RSRP reporting is introduced at the physical layer for Beam Management (BM), known as L1-RSRP.
[0005] 2) The object of measurement, i.e., the physical resources of downlink measurement.
[0006] In the configuration information of the RRC parameter CSI-ReportConfig, the reporting configuration is associated with one or more resource sets. Specifically, a measurement resource configuration is associated with one or more Non-Zero Power CSI Reference Signal (NZP-CSI RS) resource sets. The user equipment uses these NZP-CSI RS resource sets to measure the characteristics of the downlink channel. The NZP-CSI RS resource set may include a set of configured CSI RSs or a set of Synchronization Signal Blocks (SSBs). For example, L1-RSRP measurement reporting for beam management is performed on a set of SSBs or a set of NZP-CSI RSs.
[0007] 3) The reporting method, i.e., which uplink physical channel is used to carry CSI reporting.
[0008] In Rel-15NR, CSI reporting for user equipment can be divided into three types: periodic CSI report, semi-persistent CSI report, and aperiodic CSI report.
[0009] For periodic CSI reporting, the network needs to be configured with a specific reporting period. Periodic CSI reporting is carried out through the Physical Uplink Control Channel (PUCCH). Therefore, for periodic CSI reporting, the resource configuration information needs to be configured with the periodic PUCCH resources used for reporting.
[0010] For semi-persistent CSI reporting, the network activates or deactivates the corresponding CSI reporting via MAC CE. Semi-persistent CSI reporting can be carried through the allocated PUCCH or the allocated Physical Uplink Shared Channel (PUSCH). PUSCH is often used to carry semi-persistent CSI reports with larger amounts of information.
[0011] Aperiodic CSI reporting is triggered via downlink control information (DCI). Specifically, it is indicated by the CSI request indication field in the uplink scheduling authorization. This indication field contains a maximum of 6 bits, each combination corresponding to a configured aperiodic CSI report, meaning a maximum of 63 different aperiodic CSI reports can be triggered (all bits set to 0 indicate no aperiodic CSI report is triggered). Aperiodic CSI reports are carried via PUSCH.
[0012] At the 3GPP RAN#94e plenary meeting in December 2021, research on the application of Artificial Intelligence / Machine Learning (AI / ML) in the NR air interface was approved (see Non-Patent Literature 1). The use cases for this research project mainly include the following three aspects:
[0013] 1) Enhancements to CSI reporting, such as reducing CSI reporting overhead, improving CSI reporting accuracy, and enhancing CSI reporting prediction.
[0014] 2) Enhanced beam management, such as beam prediction in the time domain, reduction of overhead and delay in the spatial domain, and improved accuracy of beam selection;
[0015] 3) Positioning accuracy enhancement in different scenarios, such as scenarios with dense non-line of sight (NLOS).
[0016] The solutions in this patent are a method for a user equipment (UE) to determine the priority of channel state information (CSI) reporting when applying AI / ML in the NR air interface, and a method for a user equipment (UE) to determine non-periodic CSI reference signal (CSI-RS) resources.
[0017] Existing technical documents
[0018] Non-patent literature
[0019] Non-patent literature 1: RP-213599, New SI: Study on AI / ML for NR air interface, section 4.1 Summary of the Invention
[0020] To address at least some of the above-mentioned problems, the present invention provides a method performed by a user equipment and a user equipment thereof.
[0021] According to a first aspect of the present invention, a method performed by a user equipment is provided, comprising: receiving configuration information for channel state information (CSI) reporting; and determining a priority for the CSI reporting based on the configuration information, such that the priority is higher when a first condition is met than when a second condition is met, or the priority is higher when a third condition is met than when a fourth condition is met: the first condition is that the configuration information includes AI / ML configuration information regarding an artificial intelligence / machine learning (AI / ML) model; the second condition is that the configuration information does not include the AI / ML configuration information; the third condition is that the configuration information includes a reference signal for channel measurement and reference signal configuration information for beam management reporting; and the fourth condition is that the configuration information includes a reference signal for channel measurement and does not include reference signal configuration information for beam management reporting.
[0022] Optionally, determining the priority for the CSI report includes determining the priority using Formula 1.
[0023] Formula 1: Pri iCSI (y, k, c, s) = Y × N cells ×M s ×y+N cells ×M s ×k+M s ×c+s
[0024] Among them, Pri iCSI (y, k, c, s) represents the priority, the Pri iCSI The larger the value of (y, k, c, s), the lower the priority. Y is a positive integer, N is a positive integer, and S is a negative integer. cells M represents the maximum number of serving cells. s The maximum number of configuration information received is indicated by c, where c represents the index of the serving cell corresponding to the CSI report, and s represents the reporting identifier of the CSI report.
[0025] The value of y can be determined as follows: Assuming the CSI reporting method indicated by the configuration information is non-periodic CSI reporting, the value of y is y(1-1); when the CSI reporting method is semi-persistent CSI reporting transmitted on PUSCH, the value of y is y(1-2); when the CSI reporting method is semi-persistent CSI reporting transmitted on PUCCH, the value of y is y(1-3); and when the CSI reporting method is periodic CSI reporting, the value of y is y(1-4). Therefore, y(1-1) <y(1-2)<y(1-3)<y(1-4)。
[0026] The value of k can be determined as follows: Assuming that when the reported item includes L1-RSRP and satisfies the first or third condition, the value of k is k(1-1); when the reported item includes L1-RSRP and satisfies the second or fourth condition, the value of k is k(1-2); when the reported item does not include L1-RSRP and satisfies the first or third condition, the value of k is k(1-3); and when the reported item does not include L1-RSRP and satisfies the second or fourth condition, the value of k is k(1-4). Therefore, k(1-1) <k(1-2)<k(1-3)<k(1-4)。
[0027] Optionally, y(1-1) = 0, y(1-2) = 1, y(1-3) = 2, y(1-4) = 3; and / or, k(1-1) = 0, k(1-2) = 1, k(1-3) = 2, k(1-4) = 3.
[0028] Optionally, determining the priority for the CSI report includes determining the priority using Formula 2.
[0029] Formula 2: Pri iCSI (y, k, c, s) = Y × N cells ×M s ×y+N cells ×M s ×k+M s ×c+s
[0030] Among them, Pri iCSI (y, k, c, s) represents the priority, the Pri iCSI The larger the value of (y, k, c, s), the lower the priority. Y is a positive integer, N is a positive integer, and S is a negative integer. cells M represents the maximum number of serving cells. s The maximum number of configuration information received is indicated by c, where c represents the index of the serving cell corresponding to the CSI report, and s represents the reporting identifier of the CSI report.
[0031] The value of y can be determined as follows: Assuming the CSI reporting method indicated by the configuration information is non-periodic CSI reporting, and the first condition or the third condition is met, the value of y is y(2-1); when the CSI reporting method is non-periodic CSI reporting, and the second condition or the fourth condition is met, the value of y is y(2-2); when the CSI reporting method is semi-persistent CSI reporting transmitted on the PUSCH, and the first condition or the third condition is met, the value of y is y(2-3); when the CSI reporting method is semi-persistent CSI reporting transmitted on the PUSCH, and the second condition or the fourth condition is met, the value of y is... Let y(2-4) be the value of y. When the CSI reporting method is semi-persistent CSI reporting transmitted on PUCCH and satisfies the first condition or the third condition, the value of y is y(2-5). When the CSI reporting method is semi-persistent CSI reporting transmitted on PUCCH and satisfies the second condition or the fourth condition, the value of y is y(2-6). When the CSI reporting method is periodic CSI reporting and satisfies the first condition or the third condition, the value of y is y(2-7). When the CSI reporting method is periodic CSI reporting and satisfies the second condition or the fourth condition, the value of y is y(2-8). Then y(2-1) <y(2-2)<y(2-3)<y(2-4)<y(2-5)<y(2-6)<y(2-7)<y(2-8)。
[0032] The value of k can be determined as follows: assuming that when the CSI reporting item indicated by the configuration information includes L1-RSRP, the value of k is k(2-1), and when the CSI reporting item does not include L1-RSRP, the value of k is k(2-2), then k(2-1) <k(2-2)。
[0033] Optionally, y(2-1) = 0, y(2-2) = 1, y(2-3) = 2, y(2-4) = 3, y(2-5) = 4, y(2-6) = 5, y(2-7) = 6, y(2-8) = 7; and / or, k(2-1) = 0, k(2-2) = 1.
[0034] Optionally, determining the priority for the CSI report includes determining the priority using Formula 3.
[0035] Formula 3: Pri iCSI (y, k, c, s) = Y × N cells ×M s ×y+N cells ×M s ×k+M s ×c+s
[0036] Among them, Pri iCSI (y, k, c, s) represents the priority, the Pri iCSI The larger the value of (y, k, c, s), the lower the priority. Y is a positive integer, N is a positive integer, and S is a negative integer. cells M represents the maximum number of serving cells. s The maximum number of configuration information received is indicated by c, where c represents the index of the serving cell corresponding to the CSI report, and s represents the reporting identifier of the CSI report.
[0037] The value of y can be determined as follows: Assuming the CSI reporting method indicated by the configuration information is non-periodic CSI reporting, and the first condition is met, the value of y is y(3-1); when the CSI reporting method indicated by the configuration information is non-periodic CSI reporting, and the second condition is met, the value of y is y(3-2); when the CSI reporting method is semi-persistent CSI reporting transmitted on the PUSCH, and the first condition is met, the value of y is y(3-3); when the CSI reporting method is semi-persistent CSI reporting transmitted on the PUSCH, and the second condition is met... When the CSI reporting method is semi-persistent CSI reporting transmitted on PUCCH and the first condition is met, the value of y is y(3-4); when the CSI reporting method is semi-persistent CSI reporting transmitted on PUCCH and the second condition is met, the value of y is y(3-6); when the CSI reporting method is periodic CSI reporting and the first condition is met, the value of y is y(3-7); when the CSI reporting method is periodic CSI reporting and the second condition is met, the value of y is y(3-8), then y(3-1) <y(3-2)<y(3-3)<y(3-4)<y(3-5)<y(3-6)<y(3-7)<y(3-8)。
[0038] The value of k can be determined as follows: Assuming that the CSI reporting item indicated by the configuration information includes L1-RSRP and satisfies the first condition or the third condition, the value of k is k(3-1); when the CSI reporting item indicated by the configuration information includes L1-RSRP and satisfies the second condition or the fourth condition, the value of k is k(3-2); when the CSI reporting item does not include L1-RSRP and satisfies the second condition or the fourth condition, the value of k is k(3-3); when the CSI reporting item does not include L1-RSRP and satisfies the second condition or the fourth condition, the value of k is k(3-4), then k(3-1) <k(3-2)<k(3-3)<k(3-4)。
[0039] Optionally, y(3-1) = 0, y(3-2) = 1, y(3-3) = 2, y(3-4) = 3, y(3-5) = 4, y(3-6) = 5, y(3-7) = 6, y(3-8) = 7; and / or, k(3-1) = 0, k(3-2) = 1, k(3-3) = 2, k(3-4) = 3.
[0040] Optionally, determining the priority for the CSI report includes determining the priority using Formula 4.
[0041] Formula 4: Pri iCSI (m, y, k, c, s) = M × N cells ×M s ×m+2×N cells ×M s ×y+N cells ×M s ×k+M s ×c+s
[0042] Among them, Pri iCSI (y, k, c, s) represents the priority, the Pri iCSI The larger the value of (y, k, c, s), the lower the priority. M is a positive integer, N... cells M represents the maximum number of serving cells. s The maximum number of configuration information received is indicated by c, where c represents the index of the serving cell corresponding to the CSI report, and s represents the reporting identifier of the CSI report.
[0043] The value of m can be determined as follows: Suppose that when the first condition or the third condition is met, the value of m is m(4-1), and when the second condition or the fourth condition is met, the value of m is m(4-2), then m(4-1) <m(4-2)。
[0044] The value of y can be determined as follows: Assuming the CSI reporting method indicated by the configuration information is non-periodic CSI reporting, the value of y is y(4-1); when the CSI reporting method is semi-persistent CSI reporting transmitted on PUSCH, the value of y is y(4-2); when the CSI reporting method is semi-persistent CSI reporting transmitted on PUCCH, the value of y is y(4-3); and when the CSI reporting method is periodic CSI reporting, the value of y is y(4-4). Therefore, y(4-1) <y(4-2)<y(4-3)<y(4-4)。
[0045] The value of k can be determined as follows: assuming that when the CSI reporting item indicated by the configuration information includes L1-RSRP, the value of k is k(4-1), and when the CSI reporting item does not include L1-RSRP, the value of k is k(4-2), then k(4-1) <k(4-2)。
[0046] Optionally, m(4-1) = 0, m(4-2) = 1; and / or y(4-1) = 0, y(4-2) = 1, y(4-3) = 2, y(4-4) = 3; and / or k(4-1) = 0, k(4-2) = 1.
[0047] According to another aspect of the present invention, a user equipment is provided, comprising: a processor; and a memory storing instructions; wherein the instructions, when executed by the processor, perform the method as described above.
[0048] Beneficial effects of the present invention
[0049] When applying artificial intelligence / machine learning (AI / ML) technologies in the NR air interface, the solution of this invention prioritizes CSI reports that utilize AI / ML models (or technologies). This solution ensures that when a UE needs to process multiple CSI reports simultaneously, CSI reports using AI / ML models are processed first, effectively improving the accuracy of CSI reporting in the NR air interface, saving CSI reporting overhead, and enhancing the reliability of downlink transmission in the NR air interface. Furthermore, in this solution, when the base station triggers aperiodic CSI reporting, it indicates aperiodic CSI-RS resources in different time slots in the DCI, enabling the UE to use channel state measurement values at different times, further improving the accuracy of CSI reporting and also allowing for channel state prediction. Attached Figure Description
[0050] The above and other features of the present invention will become more apparent from the following detailed description taken in conjunction with the accompanying drawings, wherein:
[0051] Figure 1 is a flowchart of a method performed by a user equipment according to an embodiment of the present invention.
[0052] Figure 2 is a schematic diagram illustrating the basic process of the method performed by the user equipment in embodiments one, two, three and four of the invention.
[0053] Figure 3 is a schematic diagram illustrating the basic process of the method performed by the user equipment in Embodiment 5 of the invention.
[0054] Figure 4 is a block diagram illustrating a user equipment according to an embodiment of the present invention. Detailed Implementation
[0055] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments. It should be noted that the present invention should not be limited to the specific embodiments described below. Furthermore, for the sake of simplicity, detailed descriptions of well-known technologies not directly related to the present invention have been omitted to prevent confusion in understanding the present invention.
[0056] The following description uses 5G mobile communication systems and their subsequent evolutions as example application environments to specifically describe several embodiments according to the present invention. However, it should be noted that the present invention is not limited to the following embodiments, but is applicable to many other wireless communication systems, such as communication systems after 5G and 4G mobile communication systems before 5G.
[0057] The following describes some of the terms involved in this invention. Unless otherwise specified, the terms used in this invention are as defined herein. The terms given in this invention may be named differently in LTE, LTE-Advanced, LTE-Advanced Pro, NR and later communication systems, but a unified terminology is used in this invention. When applied to a specific system, it can be replaced with the terminology used in the corresponding system.
[0058] 3GPP: 3rd Generation Partnership Project
[0059] LTE: Long Term Evolution
[0060] NR: New Radio, New Wireless, New Air Interface
[0061] PDCCH: Physical Downlink Control Channel
[0062] DCI: Downlink Control Information
[0063] PDSCH: Physical Downlink Shared Channel
[0064] UE: User Equipment
[0065] eNB: evolved NodeB
[0066] gNB: NR base station
[0067] TTI: Transmission Time Interval
[0068] OFDM: Orthogonal Frequency Division Multiplexing
[0069] CP-OFDM: Cyclic Prefix Orthogonal Frequency Division Multiplexing
[0070] C-RNTI: Cell Radio Network Temporary Identifier
[0071] CSI: Channel State Information
[0072] HARQ: Hybrid Automatic Repeat Request.
[0073] CSI-RS: Channel State Information Reference Signal
[0074] CRS: Cell Reference Signal
[0075] PUCCH: Physical Uplink Control Channel
[0076] PUSCH: Physical Uplink Shared Channel
[0077] UL-SCH: Uplink Shared Channel
[0078] CG: Configured Grant, Configuration Scheduling License
[0079] MCS: Modulation and Coding Scheme
[0080] RB: Resource Block
[0081] RE: Resource Element
[0082] CRB: Common Resource Block
[0083] CP: Cyclic Prefix
[0084] PRB: Physical Resource Block
[0085] FDM: Frequency Division Multiplexing
[0086] RRC: Radio Resource Control
[0087] RSRP: Reference Signal Receiving Power
[0088] SRS: Sounding Reference Signal
[0089] DMRS: Demodulation Reference Signal
[0090] CRC: Cyclic Redundancy Check
[0091] SFI: Slot Format Indication
[0092] TDD: Time Division Duplexing
[0093] FDD: Frequency Division Duplexing
[0094] SIB: System Information Block
[0095] SIB1: System Information Block Type 1
[0096] PCI: Physical Cell ID
[0097] PSS: Primary Synchronization Signal
[0098] SSS: Secondary Synchronization Signal
[0099] BWP: Bandwidth Part
[0100] SFN: System Frame Number
[0101] IE: Information Element
[0102] SSB: Synchronization Signal Block
[0103] EN-DC: EUTRA-NR Dual Connection, LTE-NR Dual Connectivity
[0104] MCG: Master Cell Group
[0105] SCG: Secondary Cell Group
[0106] PCell: Primary Cell
[0107] SCell: Secondary Cell
[0108] SPS: Semi-Persistant Scheduling
[0109] TA: Timing Advance, uplink timing advance
[0110] PT-RS: Phase-Tracking Reference Signals
[0111] TB: Transport Block
[0112] CB: Code Block
[0113] QPSK: Quadrature Phase Shift Keying
[0114] 16 / 64 / 256QAM: 16 / 64 / 256 Quadrature Amplitude Modulation.
[0115] TDRA (field): Time Domain Resource Assignment.
[0116] FDRA (field): Frequency Domain Resource Assignment.
[0117] ARFCN: Absolute Radio Frequency Channel Number
[0118] SC-FDMA: Single Carrier-Frequency Division Multiple Access
[0119] MAC: Medium Access Control.
[0120] PDU: Protocol Data Unit
[0121] TBS: Transport Block Size
[0122] CQI: Channel Quality Indicator
[0123] RI: Rank Indicator
[0124] PMI: Precoder Matrix Indicator
[0125] RRM: Radio Resource Management
[0126] BM: Beam Management
[0127] NZP-CSI RS: Non-Zero Power CSI Reference Signal.
[0128] MAC CE: Medium Access Control Element.
[0129] The following is a description of prior art associated with the present invention. Unless otherwise specified, the same terms in the specific embodiments have the same meaning as in the prior art.
[0130] In this specification, "network" refers to a base station.
[0131] In this specification, the use of artificial intelligence / machine learning (AI / ML) models can also be referred to as the use of enhanced CSI (or, reporting).
[0132] The parameter set (numerology) and time slot in NR
[0133] The parameter set numberology includes two aspects: subcarrier spacing and cyclic prefix (CP) length. NR supports five subcarrier spacings: 15kHz, 30kHz, 60kHz, 120kHz, and 240kHz (corresponding to μ = 0, 1, 2, 3, and 4). Table 4.2-1 shows the supported transmission parameter set, as detailed below.
[0134] Table 4.2-1 Subcarrier Spacing Supported by NR
[0135] Extended CP is supported only when μ = 2, i.e., a 60kHz subcarrier spacing; other subcarrier spacings only support normal CP. For normal CP, each slot contains 14 OFDM symbols; for extended CP, each slot contains 12 OFDM symbols. For μ = 0 (15kHz subcarrier spacing), one slot = 1ms; for μ = 1 (30kHz subcarrier spacing), one slot = 0.5ms; for μ = 2 (60kHz subcarrier spacing), one slot = 0.25ms, and so on.
[0136] NR and LTE use the same definition for subframes, which is 1ms. For a subcarrier spacing configuration μ, the slot number within one subframe (1ms) can be represented as... The range is 0 to The slot number within a system frame (10ms in duration) can be represented as: The range is 0 to in, and The definitions for different subcarrier spacings μ are shown in the table below.
[0137] Table 4.3.2-1: Number of symbols per slot, number of slots per system frame, and number of slots per subframe during normal CP.
[0138] Table 4.3.2-2: Number of symbols per slot, number of slots per system frame, and number of slots per subframe during extended CP (60kHz)
[0139] On NR carriers, the system frame (or simply frame) number SFN ranges from 0 to 1023.
[0140] Resource blocks (RBs) and resource units (REs)
[0141] Resource blocks (RBs) are defined in the frequency domain as For consecutive subcarriers, for example, with a subcarrier spacing of 15 kHz, RB is 180 kHz in the frequency domain. For a subcarrier spacing of 15 kHz × 2 μ Resource element (RE) represents one subcarrier in the frequency domain and one OFDM symbol in the time domain.
[0142] Common Resource Block (CRB)
[0143] The Common Resource Block (CRB) is defined for a parameter set numberology. For all numbersology, the center frequency of subcarrier 0 of CRB number 0 points to the same location in the frequency domain, which is called "point A".
[0144] NR resource grid
[0145] In a given transmission direction on a carrier (denoted by x, where x = DL indicates downlink and x = UL indicates uplink), a resource grid is defined for each numberology, which contains in the frequency domain... Subcarriers (i.e.) There are 1 resource block RB, and each resource block contains 1 resource block RB. (each subcarrier) contains in the time domain OFDM symbols ( This represents the number of OFDM symbols within a subframe (the specific value is related to μ), where... The number of subcarriers in a resource block (RB) that satisfies The lowest-numbered common resource block (CRB) of a resource raster. The number of frequency domain resource blocks is configured by the higher-level parameter offsetToCarrier. The `carrierBandwidth` parameter is configured by the higher-level parameter. Specifically, for a given numberology and the higher-level parameter `offsetToCarrier`, the gNB configures a cell-specific common `offsetToCarrier` in the `ServingCellConfigCommon` IE via dedicated signaling. Specifically, `ServingCellConfigCommon` includes the higher-level parameter `downlinkConfigCommon`, which contains the configuration information for `offsetToCarrier`.
[0146] Bandwidth Frame (BWP)
[0147] In NR, one or more bandwidth segments can be defined for each parameter set numberology. Each BWP contains one or more consecutive CRBs. Assuming a BWP is numbered i, its starting point... (or, use) (to represent) and length (or, use) (to represent) must simultaneously satisfy the following relations:
[0148] That is, the CRB contained in the BWP must be located within the resource raster of the corresponding numberology. The CRB number represents the distance from the lowest-numbered CRB of the BWP to point A, in units of RB.
[0149] The resource blocks within a BWP are called physical resource blocks (PRBs), and their numbering is... Physical resource block 0 corresponds to the lowest numbered CRB of the corresponding BWP, i.e., CRB For a given serving cell, the gNB configures a BWP using the following high-level parameters:
[0150] 1) Subcarrier spacing;
[0151] 2) CP length;
[0152] 3) The high-level parameter locationAndBandwidth indicates the BWP relative to the starting CRB of the resource raster. offset value offset(RB) start ) and the number L of consecutive CRBs in the frequency domain of the BWP RB,satisfy Among them O carrier This represents `offsetToCarrier`; where the parameter `locationAndBandwidth` indicates a `RIV` (Resource Indication Value). The `RIV` is related to `L`. RB and RB start The calculation relationship is as follows: If So otherwise, in, and,
[0153] 4) The serial number of the BWP;
[0154] 5) Configuration of BWP common and BWP proprietary parameters, such as the configuration of PDCCH and PDSCH for downlink BWP.
[0155] Channel State Information (CSI) Reporting in NR
[0156] In NR, user equipment can perform different downlink channel measurements and channel state information reports (CSI reports) based on network configuration information. The measurement configuration and the corresponding reporting method are accomplished through the reporting configuration, which is represented by the RRC parameter CSI-ReportConfig in the 3GPP protocol.
[0157] CSI Report Items
[0158] A measurement report needs to explicitly configure which measurement items the user equipment (UE) needs to report. For example, a measurement report may include three items: Channel Quality Indicator (CQI), Channel Rank Indicator (RI), and Precoder Matrix Indicator (PMI), collectively referred to as Channel State Information. A measurement report can also include only one item, such as reporting the received signal strength, called Reference Signal Received Power (RSRP). RSRP is also a critical measurement, typically used in higher-level Radio Resource Management (RRM). In NR, RSRP reporting is introduced at the physical layer for Beam Management (BM), known as L1-RSRP.
[0159] CSI reported physical measurement resources
[0160] In the configuration information of the RRC parameter CSI-ReportConfig, the reporting configuration is associated with one or more resource sets. Specifically, a measurement resource configuration is associated with one or more Non-Zero Power CSI Reference Signal (NZP-CSI RS) resource sets. The user equipment uses these NZP-CSI RS resource sets to measure the characteristics of the downlink channel. The NZP-CSI RS resource set may include a set of configured CSI RSs or a set of Synchronization Signal Blocks (SSBs). For example, L1-RSRP measurement reporting for beam management is performed on a set of SSBs or a set of NZP-CSI RSs.
[0161] CSI reporting method
[0162] In NR, CSI reporting by user equipment can be divided into three types: periodic CSI report, semi-persistent CSI report, and aperiodic CSI report.
[0163] For periodic CSI reporting, the network needs to be configured with a specific reporting period. Periodic CSI reporting is carried out through the Physical Uplink Control Channel (PUCCH). Therefore, for periodic CSI reporting, the resource configuration information needs to be configured with the periodic PUCCH resources used for reporting.
[0164] For semi-persistent CSI reporting, the network activates or deactivates the corresponding CSI reporting via MAC CE. Semi-persistent CSI reporting can be carried through allocated PUCCHs or allocated Physical Uplink Shared Channels (PUSCHs). PUCCH resources are semi-statically and periodically configured. PUSCHs are often used to carry semi-persistent CSI reports with relatively large amounts of information.
[0165] Aperiodic CSI reporting is triggered via downlink control information (DCI). Specifically, it is indicated by the CSI request indication field in the uplink scheduling authorization. This indication field contains a maximum of 6 bits, each combination corresponding to a configured aperiodic CSI report, meaning a maximum of 63 different aperiodic CSI reports can be triggered (all bits set to 0 indicate no aperiodic CSI report is triggered). Aperiodic CSI reports are carried via PUSCH.
[0166] CSI reporting priority
[0167] In NR, the User Equipment (UE) needs to determine the priority value for each CSI report. A higher priority value indicates a lower priority for the CSI report; a lower priority value indicates a higher priority for the CSI report.
[0168] Artificial Intelligence / Machine Learning (AI / ML)
[0169] In this invention specification, an AI / ML model is used to represent the application of AI / ML technology in the NR air interface. In the case of CSI enhancement, the AI / ML model includes a CSI generation model (also called an encoder or auto-encoder) and a CSI reconstruction model (also called a decoder or auto-decoder). In the case of beam management enhancement, when the UE applies the AI / ML model, it can be used to generate reported beam measurement information. When the network applies the AI / ML model, two reference signal sets can be configured for the UE. These two sets can be different; one is used for beam measurement, and the other represents the beams that need to be reported.
[0170] AI / ML technology can be divided into the following 5 aspects:
[0171] 1) AI / ML model training
[0172] The training of AI / ML models involves generating an inference relation (e.g., a function) based on a combination of input and output parameters, which is then used for subsequent inference. Taking a CSI generation model as an example, this model can be trained by a network or by a user device (UE). The input parameters of this model are the raw channel data (e.g., the original channel matrix), and the output parameter is the CSI reported to the network. Conversely, a CSI reconstruction model can also be trained by a network or by a UE. The input parameters of the CSI reconstruction model are the reported CSI, and the output parameter is the raw channel data.
[0173] 2) AI / ML model transfer
[0174] If the CSI generation model is trained by a network, the trained CSI generation model can be sent by the network to the UE for model inference. The sending of the model is called AI / ML model transfer.
[0175] 3) AI / ML model inference
[0176] Taking the CSI generation model as an example, the process by which the UE uses a CSI generation model to generate CSI reports is the inference process of the AI / ML model. Similarly, the process by which the network uses a CSI reconstruction model to generate raw channel data is also the inference process of the AI / ML model.
[0177] 4) AI / ML model monitoring
[0178] The network or UE needs to monitor the AI / ML model used to determine whether the model is suitable for the current channel conditions.
[0179] 5) AI / ML model update
[0180] When the network or UE deems the model no longer applicable, the AI / ML model will be updated.
[0181] Figure 1 is a flowchart of a method performed by a user equipment according to an embodiment of the present invention.
[0182] As shown in Figure 1, in S101, configuration information reported by the Channel State Information (CSI) is received.
[0183] In S103, the priority for CSI reporting is determined based on the configuration information, such that the priority is higher when a first condition is met than when a second condition is met, or the priority is higher when a third condition is met than when a fourth condition is met: First condition: The configuration information includes AI / ML configuration information regarding an artificial intelligence / machine learning (AI / ML) model; Second condition: The configuration information does not include the AI / ML configuration information; Third condition: The configuration information includes reference signals for channel measurement and reference signal configuration information for beam management reporting; Fourth condition: The configuration information includes reference signals for channel measurement but does not include reference signal configuration information for beam management reporting.
[0184] In this invention, the third condition may implicitly indicate that the configuration information includes AI / ML configuration information, and the fourth condition may implicitly indicate that the configuration information does not include AI / ML configuration information.
[0185] The following provides a detailed description of specific examples and embodiments related to this invention. Furthermore, as described above, the examples and embodiments described in this disclosure are illustrative and intended to facilitate understanding of the invention, and are not intended to limit the scope of the invention.
[0186] [Example 1]
[0187] Figure 2 is a schematic diagram illustrating the basic process of a method executed by a user equipment according to Embodiment 1 of the present invention.
[0188] The method executed by the user equipment in Embodiment 1 of the present invention will now be described in detail with reference to the basic process diagram shown in Figure 2.
[0189] As shown in Figure 2, in Embodiment 1 of the present invention, the steps performed by the user equipment include:
[0190] In step S201, the user equipment receives configuration information CSI-ReportConfig reported by the first channel status information (CSI) and configuration information CSI-ReportConfig reported by the second CSI.
[0191] Both the first and second CSI-ReportConfig contain a corresponding reporting identifier (CSI-ReportConfigId).
[0192] The first and second CSI-ReportConfig indicate the reporting method of the first and second CSI reports, namely, the first and second CSI reports are periodic CSI reports, or semi-persistent CSI reports transmitted on the Physical Uplink Shared Channel (PUSCH), or semi-persistent CSI reports transmitted on the Physical Uplink Control Channel (PUCCH), or non-periodic CSI reports.
[0193] Furthermore, the first and second CSI-ReportConfig indicate the reporting items reported by the first and second CSIs. Optionally, the first and second CSI reports may or may not include L1-RSRP reports.
[0194] In step S203, the user equipment determines the priority of the first and second CSI reports.
[0195] Optionally, the user equipment determines the priority value Pri reported by the first CSI. iCSI (y, k, c, s) and the priority value Pri reported by the second CSI iCSI (y, k, c, s)′.
[0196] in,
[0197] ■ The y mentioned is determined according to the reporting method of CSI.
[0198] • Optionally, when the reporting method is non-periodic CSI reporting, y = 0;
[0199] • Optionally, when the reporting method is semi-persistent CSI reporting transmitted on PUSCH, y = 1;
[0200] • Optionally, when the reporting method is semi-persistent CSI reporting transmitted over PUCCH, y = 2;
[0201] • Optionally, when the reporting method is periodic CSI reporting, y = 3.
[0202] ■ The k mentioned is determined based on the reported items submitted by CSI.
[0203] Optionally, when the reported item includes L1-RSRP, and the first and / or second CSI-ReportConfig includes AI / ML (model) configuration information (or, the first and / or second CSI report applies an AI / ML model), or, in addition to configuring reference signals for channel measurement, the first and / or second CSI-ReportConfig also includes reference signal configuration information for beam management reporting (the set of reference signals for beam management reporting may be different from the set of reference signals for channel measurement; optionally, the reference signal configuration information for beam management reporting is the number N of the reported L1-RSRPs). RSRP ), k = 0;
[0204] Optionally, when the reported item includes L1-RSRP, and the first and / or second CSI-ReportConfig does not contain AI / ML configuration information (or the first and / or second CSI report does not apply the AI / ML model), or the first and / or second CSI-ReportConfig, based on the configuration of the channel measurement reference signal, does not contain the reference signal configuration information for beam management reporting, k=1;
[0205] Optionally, when the reported item does not include L1-RSRP, and the first and / or second CSI-ReportConfig contains AI / ML configuration information (or, the first and / or second CSI reporting applies an AI / ML model), or, in addition to configuring reference signals for channel measurement, the first and / or second CSI-ReportConfig also includes reference signal configuration information for beam management reporting (the set of reference signals for beam management reporting may be different from the set of reference signals for channel measurement; optionally, the reference signal configuration information for beam management reporting is the number N of the reported L1-RSRPs). RSRP ), k = 2;
[0206] Optionally, when the reported item does not include L1-RSRP, and the first and / or second CSI-ReportConfig does not include AI / ML configuration information (or the first and / or second CSI report does not apply the AI / ML model), or the first and / or second CSI-ReportConfig, based on the configuration of the channel measurement reference signal, does not include the reference signal configuration information for beam management reporting, k=3.
[0207] ■ The 'c' here represents the index of the serving cell.
[0208] ■ The s represents the reporting identifier CSI-ReportConfigId.
[0209] Optionally, Pri iCSI (y, k, c, s) = Pri iCSI (y, k, c, s)′=Y×N cells ×M s ×y+N cells ×M s ×k+M s ×c+s.
[0210] in,
[0211] ■Y represents a fixed positive integer; optionally, Y = 4.
[0212] ■N cells This represents the maximum number of serving cells, maxNrofServingCells.
[0213] ■M s This indicates the maximum number of CSI-reported configurations, maxNrofCSI-ReportConfigurations.
[0214] Optionally, when the reporting method and content (referring only to whether L1-RSRP is included, not other aspects such as whether CQI is included) of the first CSI report and the second CSI report are the same, if the first CSI-ReportConfig contains AI / ML configuration information (or the first CSI report applies an AI / ML model), or if the first CSI-ReportConfig, in addition to configuring reference signals for channel measurement, also contains reference signal configuration information for beam management reporting (the reference signal set for beam management reporting may be different from the reference signal set for channel measurement; optionally, the reference signal configuration information for beam management reporting is the number N of the reported Layer 1-reference signal received power L1-RSRPs). RSRP And / or, the second CSI-ReportConfig does not contain AI / ML configuration information (or, the second CSI report does not apply an AI / ML model), or, the second CSI-ReportConfig, while configuring reference signals for channel measurement, does not contain reference signal configuration information for beam management reporting. In this case, the Pri iCSI (y, k, c, s) is less than the PriiCSI (y, k, c, s)′, meaning that the priority of the first CSI report is higher than the priority of the second CSI report.
[0215] [Example 2]
[0216] Since the basic process of Example 2 is similar to that of Example 1, with only differences in details, Example 2 will be described using Figure 2 in the following description.
[0217] In Embodiment 2 of the present invention, the steps performed by the user equipment include:
[0218] In step S201, the user equipment receives configuration information CSI-ReportConfig reported by the first channel status information (CSI) and configuration information CSI-ReportConfig reported by the second CSI.
[0219] Both the first and second CSI-ReportConfig contain a corresponding reporting identifier (CSI-ReportConfigId).
[0220] The first and second CSI-ReportConfig indicate the reporting method of the first and second CSI reports, namely, the first and second CSI reports are periodic CSI reports, or semi-persistent CSI reports transmitted on the Physical Uplink Shared Channel (PUSCH), or semi-persistent CSI reports transmitted on the Physical Uplink Control Channel (PUCCH), or non-periodic CSI reports.
[0221] Furthermore, the first and second CSI-ReportConfig indicate the reporting items reported by the first and second CSIs. Optionally, the first and second CSI reports may or may not include L1-RSRP reports.
[0222] In step S203, the user equipment determines the priority of the first and second CSI reports.
[0223] Optionally, the user equipment determines the priority value Pri reported by the first CSI. iCSI (y, k, c, s) and the priority value Pri reported by the second CSI iCSI (y, k, c, s)′.
[0224] in,
[0225] ■ The y mentioned is determined according to the reporting method of CSI.
[0226] Optionally, when the reporting method is non-periodic CSI reporting, and the first and / or second CSI-ReportConfig contains AI / ML configuration information (or the first and / or second CSI reporting applies an AI / ML model), y = 0;
[0227] Optionally, when the reporting method is non-periodic CSI reporting, and the first and / or second CSI-ReportConfig does not contain AI / ML configuration information (or the first and / or second CSI reporting does not apply AI / ML models), y = 1;
[0228] • Optionally, when the reporting method is semi-persistent CSI reporting transmitted on PUSCH, and the first and / or second CSI-ReportConfig contains AI / ML configuration information (or the first and / or second CSI reporting applies an AI / ML model), y = 2;
[0229] • Optionally, when the reporting method is semi-persistent CSI reporting transmitted on PUSCH, and the first and / or second CSI-ReportConfig does not contain AI / ML configuration information (or the first and / or second CSI reporting does not apply the AI / ML model), y = 3;
[0230] • Optionally, when the reporting method is semi-persistent CSI reporting transmitted on PUCCH, and the first and / or second CSI-ReportConfig contains AI / ML configuration information (or the first and / or second CSI reporting applies an AI / ML model), y = 4;
[0231] • Optionally, when the reporting method is semi-persistent CSI reporting transmitted on PUCCH, and the first and / or second CSI-ReportConfig does not contain AI / ML configuration information (or the first and / or second CSI reporting does not apply the AI / ML model), y = 5;
[0232] • Optionally, when the reporting method is periodic CSI reporting, and the first and / or second CSI-ReportConfig contains AI / ML configuration information (or the first and / or second CSI reporting applies an AI / ML model), y = 6;
[0233] Optionally, when the reporting method is periodic CSI reporting, and the first and / or second CSI-ReportConfig does not contain AI / ML configuration information (or the first and / or second CSI reporting does not apply the AI / ML model), y = 7.
[0234] ■ The k mentioned is determined based on the reported items submitted by CSI.
[0235] • Optionally, when the reported item includes L1-RSRP, k = 0;
[0236] • Optionally, when the reported item does not contain L1-RSRP, k = 1.
[0237] ■ The 'c' here represents the index of the serving cell.
[0238] ■ The s represents the reporting identifier CSI-ReportConfigId.
[0239] Optionally, Pri iCSI (y, k, c, s) = Pri iCSI (y, k, c, s)′=Y×N cells ×M s ×y+N cells ×M s ×k+M s ×c+s.
[0240] in,
[0241] ■Y represents a fixed positive integer; optionally, Y = 2.
[0242] ■N cells This represents the maximum number of serving cells, maxNrofServingCells.
[0243] ■M s This indicates the maximum number of CSI-reported configurations, maxNrofCSI-ReportConfigurations.
[0244] Optionally, when the reporting method and content (referring only to whether L1-RSRP is included, not other aspects such as whether CQI is included) of the first CSI report and the second CSI report are the same, if the first CSI-ReportConfig contains AI / ML configuration information (or the first CSI report applies an AI / ML model), and / or the second CSI-ReportConfig does not contain AI / ML configuration information (or the second CSI report does not apply an AI / ML model), then the Pri iCSI (y, k, c, s) is less than the Pri iCSI (y, k, c, s)′, meaning that the priority of the first CSI report is higher than the priority of the second CSI report.
[0245] [Example 3]
[0246] Since the basic process of Example 3 is similar to that of Example 1, with only differences in details, Figure 2 will be used to describe Example 3 in the following description.
[0247] In Embodiment 3 of the present invention, the steps performed by the user equipment include:
[0248] In step S201, the user equipment receives configuration information CSI-ReportConfig reported by the first channel status information (CSI) and configuration information CSI-ReportConfig reported by the second CSI.
[0249] Both the first and second CSI-ReportConfig contain a corresponding reporting identifier (CSI-ReportConfigId).
[0250] The first and second CSI-ReportConfig indicate the reporting method of the first and second CSI reports, namely, the first and second CSI reports are periodic CSI reports, or semi-persistent CSI reports transmitted on the Physical Uplink Shared Channel (PUSCH), or semi-persistent CSI reports transmitted on the Physical Uplink Control Channel (PUCCH), or non-periodic CSI reports.
[0251] Furthermore, the first and second CSI-ReportConfig indicate the reporting items reported by the first and second CSIs. Optionally, the first and second CSI reports may or may not include L1-RSRP reports.
[0252] In step S203, the user equipment determines the priority of the first and second CSI reports.
[0253] Optionally, the user equipment determines the priority value Pri reported by the first CSI. iCSI (y, k, c, s) and the priority value Pri reported by the second CSI iCSI (y, k, c, s)′.
[0254] in,
[0255] ■ The y mentioned is determined according to the reporting method of CSI.
[0256] Optionally, when the reporting method is non-periodic CSI reporting, and the first and / or second CSI-ReportConfig contains AI / ML configuration information (or the first and / or second CSI reporting applies an AI / ML model), y = 0;
[0257] Optionally, when the reporting method is non-periodic CSI reporting, and the first and / or second CSI-ReportConfig does not contain AI / ML configuration information (or the first and / or second CSI reporting does not apply AI / ML models), y = 1;
[0258] • Optionally, when the reporting method is semi-persistent CSI reporting transmitted on PUSCH, and the first and / or second CSI-ReportConfig contains AI / ML configuration information (or the first and / or second CSI reporting applies an AI / ML model), y = 2;
[0259] • Optionally, when the reporting method is semi-persistent CSI reporting transmitted on PUSCH, and the first and / or second CSI-ReportConfig does not contain AI / ML configuration information (or the first and / or second CSI reporting does not apply the AI / ML model), y = 3;
[0260] • Optionally, when the reporting method is semi-persistent CSI reporting transmitted on PUCCH, and the first and / or second CSI-ReportConfig contains AI / ML configuration information (or the first and / or second CSI reporting applies an AI / ML model), y = 4;
[0261] Optionally, when the reporting method is semi-persistent CSI reporting transmitted on PUCCH, and the first and / or second CSI-ReportConfig does not contain AI / ML configuration information (or, the first and / or second CSI reporting is not applied),
[0262] (AI / ML model), y = 5;
[0263] • Optionally, when the reporting method is periodic CSI reporting, and the first and / or second CSI-ReportConfig contains AI / ML configuration information (or the first and / or second CSI reporting applies an AI / ML model), y = 6;
[0264] Optionally, when the reporting method is periodic CSI reporting, and the first and / or second CSI-ReportConfig does not contain AI / ML configuration information (or the first and / or second CSI reporting does not apply the AI / ML model), y = 7.
[0265] ■ The k mentioned is determined based on the reported items submitted by CSI.
[0266] Optionally, when the reported item includes L1-RSRP, and the first and / or second CSI-ReportConfig includes AI / ML (model) configuration information (or, the first and / or second CSI report applies an AI / ML model), or, in addition to configuring reference signals for channel measurement, the first and / or second CSI-ReportConfig also includes reference signal configuration information for beam management reporting (the set of reference signals for beam management reporting may be different from the set of reference signals for channel measurement; optionally, the reference signal configuration information for beam management reporting is the number N of the reported L1-RSRPs). RSRP ), k = 0;
[0267] Optionally, when the reported item includes L1-RSRP, and the first and / or second CSI-ReportConfig does not contain AI / ML configuration information (or the first and / or second CSI report does not apply the AI / ML model), or the first and / or second CSI-ReportConfig, based on the configuration of the channel measurement reference signal, does not contain the reference signal configuration information for beam management reporting, k=1;
[0268] Optionally, when the reported item does not include L1-RSRP, and the first and / or second CSI-ReportConfig contains AI / ML configuration information (or, the first and / or second CSI reporting applies an AI / ML model), or, in addition to configuring reference signals for channel measurement, the first and / or second CSI-ReportConfig also includes reference signal configuration information for beam management reporting (the set of reference signals for beam management reporting may be different from the set of reference signals for channel measurement; optionally, the reference signal configuration information for beam management reporting is the number N of the reported L1-RSRPs). RSRP ), k = 2;
[0269] Optionally, when the reported item does not include L1-RSRP, and the first and / or second CSI-ReportConfig does not include AI / ML configuration information (or the first and / or second CSI report does not apply the AI / ML model), or the first and / or second CSI-ReportConfig, based on the configuration of the channel measurement reference signal, does not include the reference signal configuration information for beam management reporting, k=3.
[0270] ■ The 'c' here represents the index of the serving cell.
[0271] ■ The s represents the reporting identifier CSI-ReportConfigId.
[0272] Optionally, Pri iCSI (y, k, c, s) = Pri iCSI (y, k, c, s)′=Y×N cells ×M s ×y+N cells ×M S ×k+M S ×c+s.
[0273] in,
[0274] ■Y represents a fixed positive integer; optionally, Y = 4.
[0275] ■N cells This represents the maximum number of serving cells, maxNrofServingCells.
[0276] ■M s This indicates the maximum number of CSI-reported configurations, maxNrofCSI-ReportConfigurations.
[0277] Optionally, when the reporting method and content (referring only to whether L1-RSRP is included, not other aspects such as whether CQI is included) of the first CSI report and the second CSI report are the same, if the first CSI-ReportConfig contains AI / ML configuration information (or the first CSI report applies an AI / ML model), or if the first CSI-ReportConfig, in addition to configuring reference signals for channel measurement, also contains reference signal configuration information for beam management reporting (the reference signal set for beam management reporting may be different from the reference signal set for channel measurement; optionally, the reference signal configuration information for beam management reporting is the number N of the reported Layer 1-reference signal received power L1-RSRPs). RSRP And / or, the second CSI-ReportConfig does not contain AI / ML configuration information (or, the second CSI report does not apply an AI / ML model), or, the second CSI-ReportConfig, while configuring reference signals for channel measurement, does not contain reference signal configuration information for beam management reporting. In this case, the Pri iCSI (y, k, c, s) is less than the Pri iCSI (y, k, c, s)′, meaning that the priority of the first CSI report is higher than the priority of the second CSI report.
[0278] [Example 4]
[0279] Since the basic process of Example 4 is similar to that of Example 1, with only differences in details, Figure 2 will be used to describe Example 4 in the following description.
[0280] In Embodiment 4 of the present invention, the steps performed by the user equipment include:
[0281] In step S201, the user equipment receives configuration information CSI-ReportConfig reported by the first channel status information (CSI) and configuration information CSI-ReportConfig reported by the second CSI.
[0282] Both the first and second CSI-ReportConfig contain a corresponding reporting identifier (CSI-ReportConfigId).
[0283] The first and second CSI-ReportConfig indicate the reporting method of the first and second CSI reports, namely, the first and second CSI reports are periodic CSI reports, or semi-persistent CSI reports transmitted on the Physical Uplink Shared Channel (PUSCH), or semi-persistent CSI reports transmitted on the Physical Uplink Control Channel (PUCCH), or non-periodic CSI reports.
[0284] Furthermore, the first and second CSI-ReportConfig indicate the reporting items reported by the first and second CSIs. Optionally, the first and second CSI reports may or may not include L1-RSRP reports.
[0285] In step S203, the user equipment determines the priority of the first and second CSI reports.
[0286] Optionally, the user equipment determines the priority value Pri reported by the first CSI. iCSI (m, y, k, c, s) and the priority value Pri reported by the second CSI iCSI (m, y, k, c, s)′.
[0287] in,
[0288] ■The methods for determining m include, but are not limited to:
[0289] The first and / or second CSI-ReportConfig contains configuration information for AI / ML (model) (or, the first and / or second CSI reports apply an AI / ML model), or, in addition to configuring reference signals for channel measurement, the first and / or second CSI-ReportConfig also includes configuration information for reference signals used for beam management reporting (the set of reference signals used for beam management reporting may be different from the set of reference signals used for channel measurement; optionally, the configuration information for reference signals used for beam management reporting is the number N of reported Layer 1-reference signal received power L1-RSRP). RSRP ), m = 0;
[0290] • The first and / or second CSI-ReportConfig does not contain AI / ML configuration information (or, the first and / or second CSI reports do not apply AI / ML models), or, the first and / or second CSI-ReportConfig, while configured with reference signals for channel measurement, does not contain reference signal configuration information for beam management reporting, m=1.
[0291] ■ The y mentioned is determined according to the reporting method of CSI.
[0292] • Optionally, when the reporting method is non-periodic CSI reporting, y = 0;
[0293] • Optionally, when the reporting method is semi-persistent CSI reporting transmitted on PUSCH, y = 1;
[0294] • Optionally, when the reporting method is semi-persistent CSI reporting transmitted over PUCCH, y = 2;
[0295] • Optionally, when the reporting method is periodic CSI reporting, y = 3.
[0296] ■ The k mentioned is determined based on the reported items submitted by CSI.
[0297] • Optionally, when the reported item contains L1-RSRP, k = 0;
[0298] • Optionally, when the reported item does not contain L1-RSRP, k=1.
[0299] ■ The 'c' here represents the index of the serving cell.
[0300] ■ The s represents the reporting identifier CSI-ReportConfigId.
[0301] Optionally, Pri iCSI (m, y, k, c, s) = Pri iCSI (m, y, k, c, s)′=M×N cells ×M s ×m+2×N cells ×M S ×y+N cells ×M S ×k+M S ×c+s.
[0302] in,
[0303] ■M represents a fixed positive integer; optionally, M = 8.
[0304] ■N cells This represents the maximum number of serving cells, maxNrofServingCells.
[0305] ■M s This indicates the maximum number of CSI-reported configurations, maxNrofCSI-ReportConfigurations.
[0306] Optionally, when the reporting method and content (referring only to whether L1-RSRP is included, not other aspects such as whether CQI is included) of the first CSI report and the second CSI report are the same, if the first CSI-ReportConfig contains AI / ML configuration information (or the first CSI report applies an AI / ML model), or if the first CSI-ReportConfig, in addition to configuring reference signals for channel measurement, also contains reference signal configuration information for beam management reporting (the reference signal set for beam management reporting may be different from the reference signal set for channel measurement; optionally, the reference signal configuration information for beam management reporting is the number N of the reported Layer 1-reference signal received power L1-RSRPs). RSRP And / or, the second CSI-ReportConfig does not contain AI / ML configuration information (or, the second CSI report does not apply an AI / ML model), or, the second CSI-ReportConfig, while configuring reference signals for channel measurement, does not contain reference signal configuration information for beam management reporting. In this case, the Pri iCSI (m, y, k, c, s) is less than the Pri iCSI (m, y, k, c, s)′, meaning that the priority of the first CSI report is higher than the priority of the second CSI report.
[0307] [Example 5]
[0308] Figure 3 is a schematic diagram illustrating the basic process of a method executed by a user equipment according to Embodiment 5 of the present invention.
[0309] The method executed by the user equipment in Embodiment 5 of the present invention will now be described in detail with reference to the basic process diagram shown in Figure 3.
[0310] As shown in Figure 3, in Embodiment 5 of the present invention, the steps performed by the user equipment include:
[0311] In step S301, the user equipment receives downlink control information (DCI) sent by the base station, which includes an indication to trigger aperiodic CSI reporting.
[0312] Optionally, the user equipment determines the corresponding CSI reference signal (CSI-RS) resource set based on the indication information that triggers aperiodic CSI reporting. The RRC configuration information element of the CSI-RS resource set is represented by NZP-CSI-RS-ResourceSet.
[0313] Optionally, the NZP-CSI-RS-ResourceSet includes the time-domain offset X between the DCI and the CSI-RS resource set.
[0314] Optionally, the NZP-CSI-RS-ResourceSet may also include the number N of aperiodic CSI-RS resources in the time domain and / or the interval CSIRS. Interval .
[0315] In step S303, the user equipment determines the location of the aperiodic CSI-RS resource in the time domain, and generates (or updates) the aperiodic CSI report based on the measurement of the aperiodic CSI-RS resource.
[0316] This includes, optionally, the user equipment determining the time-domain location of the N aperiodic CSI-RS resources as X, X+CSIRS Interval ..., X + (N-1) × CSIRS Interval Or, X-(N-1)×CSIRS Interval X-(N-2)×CSIRS Interval , ..., X.
[0317] Figure 4 is a block diagram illustrating the user equipment (UE) according to the present invention. As shown in Figure 4, the UE 400 includes a processor 401 and a memory 402. The processor 401 may include, for example, a microprocessor, a microcontroller, an embedded processor, etc. The memory 402 may include, for example, volatile memory (such as random access memory, RAM), a hard disk drive (HDD), non-volatile memory (such as flash memory), or other memory. Program instructions are stored on the memory 402. When executed by the processor 401, these instructions can perform the methods described in detail in this invention, which are executed by the user equipment.
[0318] The method and related apparatus of the present invention have been described above in conjunction with preferred embodiments. Those skilled in the art will understand that the methods shown above are merely exemplary, and the various embodiments described above can be combined with each other without contradiction. The method of the present invention is not limited to the steps and sequence shown above. The network nodes and user equipment shown above may include more modules, such as modules that can be developed or will be developed in the future for use with base stations, MMEs, or UEs, etc. The various identifiers shown above are merely exemplary and not limiting, and the present invention is not limited to the specific information elements exemplified by these identifiers. Those skilled in the art can make many variations and modifications based on the teachings of the illustrated embodiments.
[0319] It should be understood that the above embodiments of the present invention can be implemented by software, hardware, or a combination of both. For example, the various components inside the base station and user equipment in the above embodiments can be implemented by a variety of devices, including but not limited to: analog circuit devices, digital circuit devices, digital signal processing (DSP) circuits, programmable processors, application-specific integrated circuits (ASICs), field-programmable gate arrays (FPGAs), programmable logic devices (CPLDs), and so on.
[0320] In this application, "base station" can refer to a mobile communication data and control switching center with high transmission power and wide coverage, including functions such as resource allocation and scheduling, and data reception and transmission. "User equipment" can refer to user mobile terminals, such as mobile phones, laptops, and other terminal devices that can wirelessly communicate with base stations or micro base stations.
[0321] Furthermore, the embodiments of the present invention disclosed herein can be implemented on a computer program product. More specifically, the computer program product is one that has a computer-readable medium on which computer program logic is encoded, which, when executed on a computing device, provides related operations to implement the above-described technical solutions of the present invention. When executed on at least one processor of a computing system, the computer program logic causes the processor to perform the operations (methods) described in the embodiments of the present invention. This configuration of the present invention is typically provided as software, code, and / or other data structures disposed or encoded on a computer-readable medium such as an optical medium (e.g., CD-ROM), floppy disk, or hard disk, or other media such as firmware or microcode on one or more ROM, RAM, or PROM chips, or downloadable software images, shared databases, etc., in one or more modules. The software or firmware or such configuration can be installed on a computing device to cause one or more processors in the computing device to execute the technical solutions described in the embodiments of the present invention.
[0322] Furthermore, each functional module or feature of the base station equipment and terminal equipment used in each of the above embodiments can be implemented or executed by circuitry, which is typically one or more integrated circuits. Circuitry designed to perform the various functions described in this specification may include general-purpose processors, digital signal processors (DSPs), application-specific integrated circuits (ASICs) or general-purpose integrated circuits, field-programmable gate arrays (FPGAs) or other programmable logic devices, discrete gate or transistor logic, or discrete hardware components, or any combination of the above devices. The general-purpose processor may be a microprocessor, or the processor may be an existing processor, controller, microcontroller, or state machine. The aforementioned general-purpose processor or each circuit may be configured by digital circuitry or by logic circuitry. Furthermore, when advancements in semiconductor technology lead to advanced technologies that can replace current integrated circuits, the present invention may also utilize integrated circuits obtained using such advanced technologies.
[0323] Although the present invention has been illustrated above with reference to preferred embodiments, those skilled in the art will understand that various modifications, substitutions, and alterations can be made to the invention without departing from its spirit and scope. Therefore, the invention should not be limited by the above embodiments, but rather by the appended claims and their equivalents.
Claims
1. A method executed by a user equipment, comprising: Receive configuration information reported by the Channel Status Information (CSI); as well as The priority for CSI reporting is determined based on the configuration information, such that the priority meeting the following first condition is higher than the priority meeting the following second condition, or the priority meeting the following third condition is higher than the priority meeting the following fourth condition: The first condition is that the configuration information includes AI / ML configuration information regarding artificial intelligence / machine learning AI / ML models; The second condition is that the configuration information does not include the AI / ML configuration information; The third condition is that the configuration information includes a reference signal for channel measurement and reference signal configuration information for beam management reporting. The fourth condition is that the configuration information includes reference signals for channel measurement, but does not include reference signal configuration information for beam management reporting.
2. The method according to claim 1, wherein, Determining the priority of the CSI reports includes: The priority is determined using Formula 1. Formula 1: Pri iCSI (y, k, c, s) = Y × N cells ×M s ×y+N cells ×M s ×k+M s ×c+s, Among them, Pri iCSI (y, k, c, s) represents the priority, the Pri iCSI The larger the value of (y, k, c, s), the lower the priority. Y is a positive integer, N is a positive integer, and S is a negative integer. cells M represents the maximum number of serving cells. s This indicates the maximum number of configuration information received, c represents the index of the serving cell corresponding to the CSI report, and s represents the reporting identifier of the CSI report. The value of y is determined as follows: Assuming the CSI reporting method indicated by the configuration information is non-periodic CSI reporting, the value of y is y(1-1); when the CSI reporting method is semi-persistent CSI reporting transmitted on PUSCH, the value of y is y(1-2); when the CSI reporting method is semi-persistent CSI reporting transmitted on PUCCH, the value of y is y(1-3); and when the CSI reporting method is periodic CSI reporting, the value of y is y(1-4). Therefore, y(1-1) <y(1-2)<y(1-3)<y(1-4), The value of k is determined as follows: Assuming that when the reported item includes L1-RSRP and satisfies the first or third condition, the value of k is k(1-1); when the reported item includes L1-RSRP and satisfies the second or fourth condition, the value of k is k(1-2); when the reported item does not include L1-RSRP and satisfies the first or third condition, the value of k is k(1-3); and when the reported item does not include L1-RSRP and satisfies the second or fourth condition, the value of k is k(1-4). Therefore, k(1-1) <k(1-2)<k(1-3)<k(1-4)。 3. The method according to claim 2, wherein, y(1-1)=0, y(1-2)=1, y(1-3)=2, y(1-4)=3, And / or, k(1-1)=0, k(1-2)=1, k(1-3)=2, k(1-4)=3.
4. The method according to claim 1, wherein, Determining the priority of the CSI reports includes: The priority is determined using Formula 2. Formula 2: Pri iCSI (y, k, c, s) = Y × N cells ×M S ×y+N cells ×M S ×k+M s ×c+s, Among them, Pri iCSI (y, k, c, s) represents the priority, the Pri iCSI The larger the value of (y, k, c, s), the lower the priority. Y is a positive integer, N is a positive integer, and S is a negative integer. cells M represents the maximum number of serving cells. s This indicates the maximum number of configuration information received, c represents the index of the serving cell corresponding to the CSI report, and s represents the reporting identifier of the CSI report. The value of y is determined as follows: Assumption: When the CSI reporting method indicated by the configuration information is non-periodic CSI reporting, and the first condition or the third condition is met, the value of y is y(2-1). When the CSI reporting method is non-periodic CSI reporting, and the second condition or the fourth condition is met, the value of y is y(2-2). When the CSI reporting method is semi-persistent CSI reporting transmitted on PUSCH, and the first condition or the third condition is met, the value of y is y(2-3). When the CSI reporting method is semi-persistent CSI reporting transmitted on PUSCH, and the second condition or the fourth condition is met, the value of y is y(2-4). When the CSI reporting method is semi-persistent CSI reporting transmitted on PUCCH, and the first condition or the third condition is met, the value of y is y(2-5). When the CSI reporting method is semi-persistent CSI reporting transmitted on PUCCH, and the second condition or the fourth condition is met, the value of y is y(2-6). When the CSI reporting method is periodic CSI reporting, and the first condition or the third condition is met, the value of y is y(2-7). When the CSI reporting method is periodic CSI reporting, and the second condition or the fourth condition is met, the value of y is y(2-8). Then y(2-1) <y(2-2)<y(2-3)<y(2-4)<y(2-5)<y(2-6)<y(2-7)<y(2-8), The value of k is determined as follows: assuming that when the CSI reporting item indicated by the configuration information includes L1-RSRP, the value of k is k(2-1); when the CSI reporting item does not include L1-RSRP, the value of k is k(2-2), then k(2-1) <k(2-2)。 5. The method according to claim 4, wherein, y(2-1)=0, y(2-2)=1, y(2-3)=2, y(2-4)=3, y(2-5)=4, y(2-6)=5, y(2-7)=6, y(2-8)=7, And / or, k(2-1)=0,k(2-2)=1.
6. The method according to claim 1, wherein, Determining the priority of the CSI reports includes: The priority is determined using Formula 3. Formula 3: Pri iCSI (y, k, c, s) = Y × N cells ×M s ×y+N cells ×M s ×k+M s ×c+s, Among them, Pri iCSI (y, k, c, s) represents the priority, the Pri iCSI The larger the value of (y, k, c, s), the lower the priority. Y is a positive integer, N is a positive integer, and S is a negative integer. cells M represents the maximum number of serving cells. s This indicates the maximum number of configuration information received, c represents the index of the serving cell corresponding to the CSI report, and s represents the reporting identifier of the CSI report. The value of y is determined as follows: Assumption: When the CSI reporting method indicated by the configuration information is non-periodic CSI reporting, and the first condition is met, the value of y is y(3-1); When the CSI reporting method indicated by the configuration information is non-periodic CSI reporting, and the second condition is met, the value of y is y(3-2); When the CSI reporting method is semi-persistent CSI reporting transmitted on PUSCH and the first condition is met, the value of y is y(3-3); When the CSI reporting method is semi-persistent CSI reporting transmitted on PUSCH and the second condition is met, the value of y is y(3-4); When the CSI reporting method is semi-persistent CSI reporting transmitted on PUCCH and the first condition is met, the value of y is y(3-5); When the CSI reporting method is semi-persistent CSI reporting transmitted on PUCCH and the second condition is met, the value of y is y(3-6); When the CSI reporting method is periodic CSI reporting and the first condition is met, the value of y is y(3-7); When the CSI reporting method is periodic CSI reporting and the second condition is met, the value of y is y(3-8). Then y(3-1) <y(3-2)<y(3-3)<y(3-4)<y(3-5)<y(3-6)<y(3-7)<y(3-8), The value of k is determined as follows: Assumption: When the CSI reporting item indicated by the configuration information includes L1-RSRP, and the first condition or the third condition is met, the value of k is k(3-1). When the CSI reporting item indicated by the configuration information includes L1-RSRP, and the second condition or the fourth condition is met, the value of k is k(3-2). When the CSI reported item does not include L1-RSRP, and the second condition or the fourth condition is met, the value of k is k(3-3). When the CSI reported item does not include L1-RSRP, and the second condition or the fourth condition is met, the value of k is k(3-4). Then k(3-1) <k(3-2)<k(3-3)<k(3-4)。 7. The method according to claim 6, wherein, y(3-1)=0, y(3-2)=1, y(3-3)=2, y(3-4)=3, y(3-5)=4, y(3-6)=5, y(3-7)=6, y(3-8)=7, And / or, k(3-1)=0, k(3-2)=1, k(3-3)=2, k(3-4)=3.
8. The method according to claim 1, wherein, Determining the priority of the CSI reports includes: The priority is determined using Formula 4. Formula 4: Pri iCSI (m, y, k, c, s) = M × N cells ×M s ×m+2×N cells ×M s ×y+N cells ×M s ×k+M s ×c+s, Among them, Pri iCSI (y, k, c, s) represents the priority, the Pri iCSI The larger the value of (y, k, c, s), the lower the priority. M is a positive integer, N... cells M represents the maximum number of serving cells. s This indicates the maximum number of configuration information received, c represents the index of the serving cell corresponding to the CSI report, and s represents the reporting identifier of the CSI report. The value of m is determined as follows: assuming that when the first condition or the third condition is met, the value of m is m(4-1), and when the second condition or the fourth condition is met, the value of m is m(4-2), then m(4-1) <m(4-2), The value of y is determined as follows: Assuming the CSI reporting method indicated by the configuration information is non-periodic CSI reporting, the value of y is y(4-1); when the CSI reporting method is semi-persistent CSI reporting transmitted on PUSCH, the value of y is y(4-2); when the CSI reporting method is semi-persistent CSI reporting transmitted on PUCCH, the value of y is y(4-3); and when the CSI reporting method is periodic CSI reporting, the value of y is y(4-4). Therefore, y(4-1) <y(4-2)<y(4-3)<y(4-4), The value of k is determined as follows: assuming that when the CSI reporting item indicated by the configuration information includes L1-RSRP, the value of k is k(4-1); when the CSI reporting item does not include L1-RSRP, the value of k is k(4-2), then k(4-1) <k(4-2)。 9. The method according to claim 8, wherein, m(4-1)=0, m(4-2)=1, And / or, y(4-1)=0, y(4-2)=1, y(4-3)=2, y(4-4)=3, And / or, k(4-1)=0, k(4-2)=1.
10. A user equipment, comprising: processor; as well as Memory, which stores instructions; The instructions are executed by the processor according to any one of claims 1 to 9.
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