Method for performing channel estimation in wireless communication system and apparatus therefor

    公开(公告)号:US11799692B2

    公开(公告)日:2023-10-24

    申请号:US17264422

    申请日:2019-08-12

    CPC classification number: H04L25/0204 H04W56/001 H04W72/23 H04W74/0833

    Abstract: A method of performing channel estimation of a physical downlink control channel (PDCCH) in a wireless communication system is disclosed. Specifically, the method performed by a user equipment (UE) includes receiving a synchronization signal block (SSB) from a base station, receiving system information (SI) from the base station based on the SSB, transmitting a physical random access channel (PRACH) preamble to the base station, receiving a response to the PRACH preamble from the base station, transmitting UE capability information related to the channel estimation to the base station, receiving information for a PDCCH monitoring duration from the base station, and performing the channel estimation based on the information for the PDCCH monitoring duration. The UE capability information includes information for a maximum number of control channel elements (CCEs) that are capable of the channel estimation per PDCCH monitoring duration.

    Method and device for transmitting or receiving downlink channel from multiple transmission reception points in wireless communication system

    公开(公告)号:US11757593B2

    公开(公告)日:2023-09-12

    申请号:US17791777

    申请日:2021-02-04

    CPC classification number: H04L5/0051 H04L5/0035 H04L5/0092

    Abstract: A method and a device of transmitting or receiving a downlink channel from multiple transmission and reception points in a wireless communication system is disclosed. A method of receiving a downlink signal by a terminal in a wireless communication system according to an embodiment of the present disclosure may include repeatedly receiving a downlink control channel including same downlink control information (DCI) in at least one transmission occasion (TO) from at least one transmission reception point (TRP); and based on the DCI including control information related to downlink signal reception, based on a time offset between a specific TO of the at least one TO and a receiving timing of a downlink signal related to the DCI being less than a predetermined threshold, receiving the downlink signal from a single TRP based on a default transmission configuration indicator (TCI) state and the default TCI state may be a TCI state related to a search space set or a control resource set (CORESET) having a lowest identifier in a latest slot that the terminal monitors.

    METHOD AND DEVICE FOR RECEIVING SIGNAL IN WIRELESS COMMUNICATION SYSTEM

    公开(公告)号:US20230155786A1

    公开(公告)日:2023-05-18

    申请号:US18086301

    申请日:2022-12-21

    Abstract: A method for receiving a signal by a terminal in a wireless communication system according to an embodiment of the present invention can comprise a step for determining REGs, which are to be assumed that the same precoding is used, among REGs comprised in a control resource set on the basis of information relating to precoder granularity, and thus monitoring a control channel candidate. Particularly, if a part of resource blocks overlaps another resource region and particular resource blocks in the resource blocks are no longer contiguous due to the overlapping, the terminal can comprise an assumption that the same precoding is used with respect to the REGs comprised in the particular resource blocks even if the information relating to the precoder granularity corresponds to first configuration.

    Method for transmitting and receiving signal by terminal in wireless communication system and apparatus therefor

    公开(公告)号:US11627573B2

    公开(公告)日:2023-04-11

    申请号:US17405880

    申请日:2021-08-18

    Abstract: The present invention relates to a method and an apparatus for transmitting and receiving a signal by a terminal in a wireless communication system supporting reconfiguration of wireless resources. Specifically, the method comprises a step of monitoring wireless resource reconfiguration control information on a number of sub-frames within a set monitoring cycle in order to reconfigure wireless resources, wherein a first uplink-downlink setting in accordance with wireless resource reconfiguration control information is valid only if equally detected on a number of sub-frames, and wherein a number of sub-frames are sub-frames set to monitor wireless resource reconfiguration control information of a terminal.

Patent Agency Ranking