Search

CN-122002358-A - Method performed by user equipment and user equipment

CN122002358ACN 122002358 ACN122002358 ACN 122002358ACN-122002358-A

Abstract

The invention provides a method executed by user equipment and the user equipment. The method comprises the steps of receiving configuration information of Channel State Information (CSI) reporting and determining the priority of the CSI reporting at least according to the configuration information.

Inventors

  • ZHAO YINAN
  • LUO CHAO
  • LIU RENMAO

Assignees

  • 夏普株式会社

Dates

Publication Date
20260508
Application Date
20241106

Claims (6)

  1. 1. A method performed by a user equipment, comprising the steps of: Receiving configuration information reported by Channel State Information (CSI) and And determining the priority of the CSI reporting at least according to the configuration information.
  2. 2. The method of claim 1, wherein determining the priority of CSI reporting comprises: The priority is determined by equation 1 or equation 2, Pri iCSI (y,k,c,s)＝2×N cells ×M s ×y+N cells ×M s ×k+M s ×c+s, Equation 2 Pri iCSI (y,k,c,s)＝Y×N cells ×M s ×y+N cells ×M s ×k+M s ×c+s, Pri iCSI (Y, k, c, s) represents the priority, the larger the value of Pri iCSI (Y, k, c, s) is, the lower the priority is, Y represents a positive integer greater than or equal to 3, N cells represents the maximum number of service cells, M s represents the maximum number of received configuration information, c represents the index of the service cell corresponding to the CSI report, s represents the report identifier of the CSI report, Y is determined according to the report mode of the CSI report, and k is determined according to the report item of the CSI report.
  3. 3. The method of claim 2, wherein, When the reporting mode is aperiodic CSI reporting, y=0; When the reporting mode is semi-persistent CSI reporting transmitted on PUSCH, y=1; When the reporting mode is semi-persistent CSI reporting transmitted on PUCCH, y=2; when the reporting mode is periodic CSI reporting, y=3.
  4. 4. The method of claim 2, wherein, K=0 when the reporting item contains L1-RSRP or when the base station indicates, through RRC signaling configuration or DCI, that the beam management report contains only beam information, and when the reporting item contains only beam information; And When the reporting item does not contain L1-RSRP and the base station does not indicate that only beam information is contained in the beam management report through RRC signaling configuration or DCI, k=1.
  5. 5. The method of claim 2, wherein, When the reporting item contains L1-RSRP and at least one of the configuration information related to AI/ML is contained in the configuration information, or when the base station indicates that only the beam information is contained in the beam management report through RRC signaling configuration or DCI, and when the reporting item contains only the beam information, k=0: And When the report item contains L1-RSRP and the configuration information does not contain AI/ML related configuration information, k=1; And When the reporting item does not contain L1-RSRP and the base station does not indicate that only beam information is contained in the beam management report through RRC signaling configuration or DCI, k=2.
  6. 6. A user equipment, comprising: processor, and A memory in which instructions are stored, Wherein the instructions, when executed by the processor, perform the method according to any of claims 1-5.

Description

Method performed by user equipment and user equipment Technical Field The present invention relates to the field of wireless communication technology, and in particular, to a method performed by a user equipment and a corresponding user equipment. Background In Rel-15 NR, the ue may perform different downlink channel measurement (measurement) and channel state information reporting (CHANNEL STATE Indicator report, CSI report) based on configuration information of the network. The configuration of measurement and the corresponding reporting mode are completed by reporting configuration, and are expressed by adopting RRC parameter CSI-ReportConfig in a protocol of 3 GPP. Specifically, the reporting configuration includes the following three information: 1) The number of measurement reports, i.e. how many measurement items need to be reported to the network. One measurement report needs to explicitly configure which measurement items the user equipment needs to report. For example, one measurement report may include three items, channel quality indication (Channel Quality Indicator, CQI), channel Rank Indicator (RI), and channel precoding matrix indication (Precoder Matrix Indicator, PMI), collectively referred to as channel state information. The measurement report may also include only one item, e.g. reporting the received signal strength, referred to as reference signal received Power (REFERENCE SIGNAL RECEIVED Power, RSRP). RSRP is also a critical measurement and is commonly used in higher layer radio resource management (Radio Resource Management, RRM). RSRP reporting is introduced in the physical layer in NR for Beam Management (BM), referred to as L1-RSRP. 2) Measuring objects, i.e. physical resources for downlink measurement In the configuration information of the RRC parameter CSI-ReportConfig, reporting configuration is associated with one or more resource sets. Specifically, one measurement resource configuration is associated with one or more Non Zero Power channel state information reference signal (Non Zero Power CSI REFERENCE SIGNAL, NZP-CSI RS) resource sets, and the user equipment measures the characteristics of the downlink channel by using the NZP-CSI RS resource sets. The NZP-CSI RS resource set may include a set of configured CSI-RS or a set of synchronization signal blocks (Synchronization Signal Block, SSB). For example, the L1-RSRP measurement reporting for beam management is performed for a set of SSBs or a set of NZP-CSI RSs. 3) Reporting mode, i.e. using what uplink physical channel is used to carry CSI reporting In Rel-15NR, CSI reporting of a user equipment can be classified into three types, periodic CSI reporting (Periodic CSI report), semi-persistent CSI reporting (Semi-PERSISTENT CSI report), and aperiodic CSI reporting (Aperiodic CSI report). For periodic CSI reporting, the network needs to configure a certain reporting period. The periodic CSI reporting is carried over a physical uplink control channel PUCCH. Therefore, for periodic CSI reporting, the resource configuration information needs to configure periodic PUCCH resources for reporting. For semi-persistent CSI reporting, the network activates or deactivates the corresponding CSI reporting via the MAC CE. The semi-persistent CSI reporting may be carried by an allocated PUCCH or may be carried by an allocated physical uplink shared channel PUSCH. PUSCH is often used to carry semi-persistent CSI reporting where the amount of reported information is relatively large. Aperiodic CSI reporting is triggered by downlink control information DCI. Specifically, the indication is indicated by a CSI request indication field in the uplink scheduling grant. The indication field contains at most 6 bits, and each combination corresponds to one configured aperiodic CSI report, that is, at most 63 different aperiodic CSI reports can be triggered (all bits 0 indicate that no aperiodic CSI report is triggered). Aperiodic CSI reporting is carried over PUSCH. At the 3gpp ran#94e group of month 12 of 2021, research on application of artificial intelligence/machine learning (ARTIFICIAL INTELLIGENCE/MACHINE LEARNING, AI/ML) in NR air interface (NR AIR INTERFACE) was approved (see non-patent document 1). The case (use case) of this study mainly includes the following three aspects: 1) Enhancement of CSI reporting, for example, reducing overhead (overhead reduction) of CSI reporting, improving accuracy (improve accuracy) of CSI reporting, and prediction (prediction) of CSI reporting; 2) The UE reports the reference signal received power RSRP of the layer 1 to the base station, and the base station carries out beam management according to the reported information; 3) Enhancement of positioning accuracy (positioning accuracy enhancement) under different scenarios, such as those with dense Non-Line of Sight (NLOS) and the like. For enhancement of beam management, the study includes both beam management case one and beam management case two. 1) Beam m