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EP-4740325-A1 - A METHOD AND DEVICE FOR RECEIVING AND TRANSMITTING INFORMATION

EP4740325A1EP 4740325 A1EP4740325 A1EP 4740325A1EP-4740325-A1

Abstract

The disclosure relates to a 5G or 6G communication system for supporting a higher data transmission rate. The present disclosure provides a method performed by a UE in a wireless communication system, the method including: receiving a channel state information (CSI) report configuration, wherein the CSI report configuration includes information of a first resource; and determining and/or reporting a CSI parameter based on the first resource, wherein: when the first resource is periodic or semi-persistent, the first resource corresponds to a plurality of measurement occasion groups, the CSI parameter is determined based on each of the plurality of measurement occasion groups; or when the first resource is aperiodic, the first resource includes a plurality of resource groups in a plurality of time units, the CSI parameter is determined based on each of the plurality of resource groups.

Inventors

  • CHEN, ZHE
  • SUN, Feifei

Assignees

  • Samsung Electronics Co., Ltd.

Dates

Publication Date
20260513
Application Date
20240806

Claims (15)

  1. A method performed by a user equipment (UE) in a communication system, the method comprising: receiving a channel state information (CSI) report configuration, wherein the CSI report configuration comprises information for a first resource; determining, based on the CSI report configuration, CSI parameter; and reporting the CSI parameter on the first resource, wherein: in case that the first resource is a periodic resource or a semi-persistent resource, and the first resource corresponds to a plurality of measurement occasion groups, the CSI parameter is determined based on each of the plurality of measurement occasion groups; or in case that the first resource is an aperiodic resource and the first resource comprises a plurality of resource groups in a plurality of time units, the CSI parameter is determined based on each of the plurality of resource groups.
  2. The method of claim 1, wherein each measurement occasion group comprises all measurement occasions of one or more resources included in the first resource within a measurement window corresponding to each measurement occasion group, wherein a measurement window corresponding to a last measurement occasion group of the plurality of measurement occasion groups is determined based on at least one of: an offset between a last time unit of a configured measurement window and a CSI reference resource associated with the CSI parameter; an offset between the last time unit of the configured measurement window and a time unit where the CSI parameter is reported; a last measurement window of one or more measurement windows determined based on at least one of a periodicity of the first resource or a subframe number (SFN) that is no later than a CSI reference resource associated with the CSI parameter; or the last measurement window of one or more measurement windows determined based on the at least one of the periodicity of the first resource or the SFN that is no later than a time unit before the time unit where the CSI parameter is reported, wherein the last measurement window of the one or more measurement windows that is no later than the CSI reference resource associated with the CSI parameter comprises at least one of: all measurement occasions in the last measurement window being no later than the CSI reference resource; at least one of measurement occasions corresponding to each of the one or more resources in the last measurement window being no later than the CSI reference resource; or the last time unit in the last measurement window being no later than the CSI reference resource.
  3. The method of claim 2, wherein: a length of the measurement window is determined based on the periodicity of the first resource; and an interval between a plurality of measurement windows corresponding to the plurality of measurement occasion groups is determined based on the periodicity of the first resource.
  4. The method of claim 1, wherein each of the plurality of time units is determined based on a reference time unit and one or more first offsets corresponding to one or more resources included in the first resource, or each of the plurality of resource groups corresponds to one or more time units related to the reference time unit, and wherein the reference time unit is determined based on a channel state information reference signal (CSI-RS) triggering an offset corresponding to the first resource, and wherein the one or more time units are determined based on one of: a spacing of two adjacent resource groups from the plurality of resource groups; or a second offset configured for each resource in each of the plurality of resource groups.
  5. The method of claim 1, wherein: the CSI parameter corresponds to each of the plurality of measurement occasion groups; or the CSI parameter corresponds to each of the plurality of resource groups.
  6. The method of claim 5, wherein: the CSI parameter corresponding to each measurement occasion group comprises at least one of a resource indicator or a first number of values of layer 1-reference signal received power (L1-RSRP) corresponding to each measurement occasion group; or the CSI parameter corresponding to each resource group comprises at least one of the resource indicator or the first number of values of L1-RSRP corresponding to each resource group, and the first number is configured via a higher layer signaling.
  7. The method of claim 6, wherein: the plurality of measurement occasion groups shares a same resource indicator; or each of the plurality of measurement occasion groups corresponds to a respective resource indicator.
  8. The method of claim 6, wherein the resource indicator corresponding to each measurement occasion group or each resource group comprises at least one of: the first number of a first resource indicator to indicate a resource that is reported; or a number of a second resource indicator to indicate a resource that is not reported, the number of the second resource indicator being the number of a plurality of resources included in the first resource minus the first number.
  9. The method of claim 8, wherein the CSI report configuration corresponds to a differential layer 1-reference signal received power (L1-RSRP) based reporting; and, wherein the CSI parameter comprises: a group indicator representing each measurement occasion group or a resource group where a largest measured value of L1-RSRP is located or the resource indicator corresponding to the group indicator; or the CSI parameter comprises a resource indicator corresponding to each measurement occasion group representing the resource corresponding to the largest measured value of L1-RSRP.
  10. The method of claim 1, wherein an order of the CSI parameter is determined based on an order of the plurality of measurement occasion groups or an order of the plurality of resource groups.
  11. The method of claim 1, wherein the CSI parameter comprises a predicted CSI parameter for each of a second number of time intervals, and wherein an earliest time interval of the second number of time intervals is determined based on at least one of: a time unit where the CSI parameter is reported, a CSI reference resource associated with the CSI report, a last measurement window of one or more measurement windows determined based on at least one of a periodicity of a first resource or a subframe number (SFN) that is later than the CSI reference resource associated with the CSI parameter, or the last measurement window of the one or more measurement windows determined based on the at least one of the periodicity of the first resource or the SFN that is not earlier than the time unit where the CSI parameter is reported.
  12. The method of claim 11, wherein a spacing between two adjacent time intervals of the second number of time intervals or a length of each of the second number of time intervals is determined based on at least one of: the periodicity of the first resource; or the spacing of two adjacent resource groups from the plurality of resource groups.
  13. A user equipment (UE) in a communication system, the UE comprising: a transceiver; and a processor coupled with the transceiver and configured to: receive a channel state information (CSI) report configuration, wherein the CSI report configuration comprises information for a first resource; determine, based on the CSI report configuration, CSI parameter; and report the CSI parameter on the first resource, wherein: in case that the first resource is a periodic resource or a semi-persistent resource, and the first resource corresponds to a plurality of measurement occasion groups, the CSI parameter is determined based on each of the plurality of measurement occasion groups; or in case that the first resource is an aperiodic resource and the first resource comprises a plurality of resource groups in a plurality of time units, the CSI parameter is determined based on each of the plurality of resource groups.
  14. A method performed by a base station in a communication system, the method comprising: transmitting a channel state information (CSI) report configuration, wherein the CSI report configuration comprises information for a first resource; and receiving CSI parameter on the first resource, wherein: in case that the first resource is a periodic resource or a semi-persistent resource, and the first resource corresponds to a plurality of measurement occasion groups, the CSI parameter is based on each of the plurality of measurement occasion groups; or in case that the first resource is an aperiodic resource and the first resource comprises a plurality of resource groups in a plurality of time units, the CSI parameter is based on each of the plurality of resource groups.
  15. A base station in a communication system, the base station comprising: a transceiver; and a processor coupled with the transceiver and configured to: transmit a channel state information (CSI) report configuration, wherein the CSI report configuration comprises information for a first resource; and receive CSI parameter on the first resource, wherein: in case that the first resource is a periodic resource or a semi-persistent resource, and the first resource corresponds to a plurality of measurement occasion groups, the CSI parameter is based on each of the plurality of measurement occasion groups; or in case that the first resource is an aperiodic resource and the first resource comprises a plurality of resource groups in a plurality of time units, the CSI parameter is based on each of the plurality of resource groups.

Description

A METHOD AND DEVICE FOR RECEIVING AND TRANSMITTING INFORMATION The present disclosure relates to a field of wireless communication and, more particularly, to a method and device for receiving and transmitting information. In order to meet the increasing demand for wireless data communication services since the deployment of 4th generation (4G) communication systems, efforts have been made to develop improved 5G or pre-5G communication systems. Therefore, 5G or pre-5G communication systems are also called "Beyond 4G networks" or "Post-LTE systems." In order to achieve a higher data rate, 5G communication systems are implemented in higher frequency (millimeter, mmWave) bands, e.g., 60 GHz bands. In order to reduce propagation loss of radio waves and increase a transmission distance, technologies such as beamforming, massive multiple-input multiple-output (MIMO), full-dimensional MIMO (FD-MIMO), array antenna, analog beamforming and large-scale antenna are discussed in 5G communication systems. In addition, in 5G communication systems, developments of system network improvement are underway based on advanced small cell, cloud radio access network (RAN), ultra-dense network, device-to-device (D2D) communication, wireless backhaul, mobile network, cooperative communication, coordinated multi-points (CoMP), reception-end interference cancellation, etc. In 5G systems, hybrid FSK and QAM modulation (FQAM) and sliding window superposition coding (SWSC) as advanced coding modulation (ACM), and filter bank multicarrier (FBMC), non-orthogonal multiple access (NOMA) and sparse code multiple access (SCMA) as advanced access technologies have been developed. A transmission from a base station to a user equipment (UE) is called downlink, and a transmission from a UE to a base station is called uplink. 5th generation (5G) mobile communication technologies define broad frequency bands such that high transmission rates and new services are possible, and can be implemented not only in "Sub 6GHz" bands such as 3.5GHz, but also in "Above 6GHz" bands referred to as mmWave including 28GHz and 39GHz. In addition, it has been considered to implement 6G mobile communication technologies (referred to as Beyond 5G systems) in terahertz bands (for example, 95GHz to 3THz bands) in order to accomplish transmission rates fifty times faster than 5G mobile communication technologies and ultra-low latencies one-tenth of 5G mobile communication technologies. At the beginning of the development of 5G mobile communication technologies, in order to support services and to satisfy performance requirements in connection with enhanced Mobile BroadBand (eMBB), Ultra Reliable Low Latency Communications (URLLC), and massive Machine-Type Communications (mMTC), there has been ongoing standardization regarding beamforming and massive MIMO for mitigating radio-wave path loss and increasing radio-wave transmission distances in mmWave, supporting numerologies (for example, operating multiple subcarrier spacings) for efficiently utilizing mmWave resources and dynamic operation of slot formats, initial access technologies for supporting multi-beam transmission and broadbands, definition and operation of BWP (BandWidth Part), new channel coding methods such as a LDPC (Low Density Parity Check) code for large amount of data transmission and a polar code for highly reliable transmission of control information, L2 pre-processing, and network slicing for providing a dedicated network specialized to a specific service. Currently, there are ongoing discussions regarding improvement and performance enhancement of initial 5G mobile communication technologies in view of services to be supported by 5G mobile communication technologies, and there has been physical layer standardization regarding technologies such as V2X (Vehicle-to-everything) for aiding driving determination by autonomous vehicles based on information regarding positions and states of vehicles transmitted by the vehicles and for enhancing user convenience, NR-U (New Radio Unlicensed) aimed at system operations conforming to various regulation-related requirements in unlicensed bands, NR UE Power Saving, Non-Terrestrial Network (NTN) which is UE-satellite direct communication for providing coverage in an area in which communication with terrestrial networks is unavailable, and positioning. Moreover, there has been ongoing standardization in air interface architecture/protocol regarding technologies such as Industrial Internet of Things (IIoT) for supporting new services through interworking and convergence with other industries, IAB (Integrated Access and Backhaul) for providing a node for network service area expansion by supporting a wireless backhaul link and an access link in an integrated manner, mobility enhancement including conditional handover and DAPS (Dual Active Protocol Stack) handover, and two-step random access for simplifying random access procedures (2-step RACH for NR). There also has be