APPARATUS AND METHOD FOR TRANSMITTING AND RECEIVING SIGNALS IN WIRELESS OPTICAL COMMUNICATION SYSTEM

    公开(公告)号:US20230171002A1

    公开(公告)日:2023-06-01

    申请号:US17920712

    申请日:2020-07-14

    CPC classification number: H04B10/6972 H04B10/67 H04W72/23

    Abstract: According to one embodiment of the present invention, an apparatus and method for transmitting and receiving signals in a wireless communication system comprise receiving an optical signal including an interference signal and a target signal, attenuating the interference signal, and converting the optical signal in which the interference signal is attenuated, into electric signals via a photodiode array, wherein a transceiver comprises a first optical filter upon which the optical signal is incident, and a second optical filter upon which the optical signal having passed through the first optical filter is incident, wherein the interference signal may be attenuated through the first optical filter and the second optical filter.

    METHOD AND APPARATUS FOR REPORTING CHANNEL STATE INFORMATION IN WIRELESS COMMUNICATION SYSTEM

    公开(公告)号:US20230170953A1

    公开(公告)日:2023-06-01

    申请号:US18095760

    申请日:2023-01-11

    CPC classification number: H04B7/0486 H04L5/0048

    Abstract: The present disclosure relates to a method, performed by a user equipment (UE), for reporting channel state information (CSI) in a wireless communication system and an apparatus therefor. According to the present disclosure, the UE receives a channel state information reference signal (CSI-RS) from a base station through a multiple antenna port; and reports the CSI to the base station, wherein the CSI includes a precoding matrix indicator for a codebook generated by linear combination, wherein the codebook is generated based on a specific parameter set, and wherein the specific parameter set is differently set/applied based on at least one of a rank value or at least one layer index of a specific rank.

    METHOD FOR SUPPORTING RATE-COMPATIBLE NON-BINARY LDPC CODE, AND WIRELESS TERMINAL USING SAME

    公开(公告)号:US20220224355A1

    公开(公告)日:2022-07-14

    申请号:US17605850

    申请日:2019-04-22

    Abstract: A method for supporting a rate-compatible non-binary LDPC code, performed by a wireless device, according to the present embodiment, comprises the steps of: acquiring a kernel part comprising a plurality of first check nodes and a plurality of first variable nodes, the kernel part having a predetermined first code rate applied thereto, and the level of each of the plurality of first variable nodes included in the kernel part being set to 2; and generating, on the basis of the kernel part, a protograph having a second code rate, when a change from the first code rate to the second code rate is required.

    METHOD FOR TRANSMITTING/RECEIVING REFERENCE SIGNAL IN WIRELESS COMMUNICATION SYSTEM, AND DEVICE THEREFOR

    公开(公告)号:US20200351815A1

    公开(公告)日:2020-11-05

    申请号:US16642821

    申请日:2018-08-29

    Abstract: A method whereby a user equipment transmits/receives a reference signal for distance measurement in a wireless communication system according to an embodiment of the present invention comprises: a step of receiving, from a base station, a downlink (DL) positioning reference signal (PRS) including sinusoidal components of different angular frequencies; a step of acquiring a phase difference between the sinusoidal components of the DL PRS; a step of transmitting a first uplink (UL) PRS indicating the phase difference, so as to measure a first distance between the user equipment and the base station at a first point of time; and a step of transmitting a second UL PRS so as to measure a second distance between the user equipment, the position of which has changed after the first point of time, and the base station, wherein the user equipment may configure the same phase difference, acquired via the DL PRS before the first point of time, for the second UL PRS, without receiving an additional DL PRS for measuring the second distance. The user equipment is capable of communicating with at least one of another user equipment, a user equipment related to an autonomous driving vehicle, the base station or a network.

    METHOD FOR FEEDBACK OF CHANNEL QUALITY INFORMATION IN WIRELESS COMMUNICATION SYSTEM, AND DEVICE FOR SAME

    公开(公告)号:US20200274601A1

    公开(公告)日:2020-08-27

    申请号:US16761588

    申请日:2018-11-05

    Abstract: The method for feedback of channel quality information in a wireless communication system, according to one embodiment of the present invention, is performed by a terminal and comprises the steps of: receiving feedback configuration information, including information on disjoint segmentation indicating the indexes of channel or beam quality-related parameters for broadcast or multicast services, from a base station; and according to the information on disjoint segmentation in the feedback configuration information, encoding the index of a channel or beam quality-related parameter to be reported and transmitting same to the base station, wherein the disjoint segmentation includes multiple subsets which do not overlap and which have different lengths, and the index of the channel or beam quality-related parameter, which is transmitted to the base station, may indicate a predetermined value in one subset among the multiple subsets.

    METHOD AND DEVICE FOR PERFORMING LOCATION MEASUREMENT ON BASIS OF PDOA

    公开(公告)号:US20200128357A1

    公开(公告)日:2020-04-23

    申请号:US16627221

    申请日:2018-01-19

    Abstract: Provided is a method by which a terminal performs location measurement on the basis of a PDOA in a wireless communication system, according to one embodiment of the present description, wherein the method, by which a terminal performs location measurement on the basis of PDOA, comprises: a step for receiving, from a base station, a signal through a plurality of paths; a step for acquiring phase difference information on each of the plurality of paths; and a step for reporting, to the base station, the phase difference information on the basis of the reference signal. The terminal is capable of communicating with at least one of another terminal, a terminal related to an autonomous driving vehicle, the base station, or a network.

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