Hybrid automatic repeat request method and apparatus in relay wireless communication system using compressed-and-forward scheme

    公开(公告)号:US10237023B2

    公开(公告)日:2019-03-19

    申请号:US15324633

    申请日:2015-08-13

    Abstract: The present disclosure relates to a 5G or pre-5G communication system which will be provided in order to support a higher data transmission rate than in 4G communication systems such as LTE. A method at a relay node according to one example of the present invention is a hybrid automatic repeat request method at the relay node in a relay wireless communication system using a compress-and-forward (CF) scheme, and may comprise the steps of: when receiving data from a previous node, performing mesh quantization so as to have redundant information at the time of quantization for transmitting, to a next node, the data received from the previous node; transmitting to the next node by channel-coding only an amount transmittable to a channel set for transmitting to the next node from upper information among the quantized information; and when receiving negative acknowledgement (NACK) from the next node, retransmitting to the next node by channel-coding only an amount transmittable to the set channel among the other information which is not transmitted among the quantized information.

    Apparatus and method for channel feedback in wireless communication system

    公开(公告)号:US10993232B2

    公开(公告)日:2021-04-27

    申请号:US16110502

    申请日:2018-08-23

    Abstract: The present disclosure relates to a pre-5th-Generation (5G) or 5G communication system to be provided for supporting higher data rates Beyond 4th-Generation (4G) communication system such as Long-Term Evolution (LTE). According to various embodiments of the present disclosure, a first apparatus in a wireless communication system that includes at least one processor and at least one transceiver operatively coupled with the at least one processor. The at least one processor is configured to obtain a channel matrix based on a signal received from a second apparatus, obtain an integer matrix for integer forcing (IF) based on the channel matrix, and generate channel information based on the integer matrix. The at least one transceiver is configured to transmit the generated channel information to the second apparatus.

    Apparatus and method for receiving signal in wireless communication system

    公开(公告)号:US10454535B2

    公开(公告)日:2019-10-22

    申请号:US15891146

    申请日:2018-02-07

    Abstract: The present disclosure relates to a pre-5th-Generation (5G) or 5G communication system to be provided for supporting higher data rates Beyond 4th-Generation (4G) communication system such as Long Term Evolution (LTE). According to various embodiments, in a multiple-input multiple-output wireless communication system, a receiving apparatus may include at least one processor and at least one transceiver. The at least one transceiver may be configured to receive a signal including a plurality of symbols, perform Successive Interference Cancellation (SIC) related to a first symbol of the plurality of symbols on the received signal to obtain a processed signal, determine symbol-sums by applying an equalization matrix for integer forcing to the processed signal, and determine information words corresponding to the plurality of symbols based on the symbol-sums.

    ELECTRONIC APPARATUS AND CONTROLLING METHOD THEREOF

    公开(公告)号:US20240259538A1

    公开(公告)日:2024-08-01

    申请号:US18631867

    申请日:2024-04-10

    CPC classification number: H04N9/3185 G06T7/70 G06V20/50 G06T2200/24

    Abstract: An electronic apparatus includes a projection unit, a sensor assembly; and a processor configured to: acquire state information including at least one of horizontal inclination information, vertical inclination information, or horizontal distortion information based on sensing data acquired through the sensor assembly, based on acquiring at least one of the horizontal inclination information or the vertical inclination information in the state information, perform a keystone function, based on acquiring the horizontal distortion information in the state information, perform a leveling function, and control the projection unit to output a projection image onto a projection surface.

    ELECTRONIC DEVICE, CONTENTS SEARCHING SYSTEM AND SEARCHING METHOD THEREOF

    公开(公告)号:US20230037686A1

    公开(公告)日:2023-02-09

    申请号:US17972264

    申请日:2022-10-24

    Abstract: An electronic apparatus projecting an image is disclosed. The electronic apparatus includes a main body, a projector, a plurality of sensors including an acceleration sensor that detects a sensing value, and a plurality of distance sensors that detect a distance value between the electronic apparatus and a screen, a support connected to the main body, and a processor configured to identify a vertical angle by which the electronic apparatus is tilted, based on a sensing value detected by the acceleration sensor, identify a rotation angle by which the electronic apparatus is rotated based on a distance value detected by the plurality of distance sensors, perform a function corresponding to a keystone correction on an image to provide a modified image, identify a size of the modified image based on the vertical angle or the rotation angle, and control the projector to project the modified image based on the size of the modified image.

    HYBRID AUTOMATIC REPEAT REQUEST METHOD AND APPARATUS IN RELAY WIRELESS COMMUNICATION SYSTEM USING COMPRESSED-AND-FORWARD SCHEME

    公开(公告)号:US20170244521A1

    公开(公告)日:2017-08-24

    申请号:US15324633

    申请日:2015-08-13

    Abstract: The present disclosure relates to a 5G or pre-5G communication system which will be provided in order to support a higher data transmission rate than in 4G communication systems such as LTE. A method at a relay node according to one example of the present invention is a hybrid automatic repeat request method at the relay node in a relay wireless communication system using a compress-and-forward (CF) scheme, and may comprise the steps of: when receiving data from a previous node, performing mesh quantization so as to have redundant information at the time of quantization for transmitting, to a next node, the data received from the previous node; transmitting to the next node by channel-coding only an amount transmittable to a channel set for transmitting to the next node from upper information among the quantized information; and when receiving negative acknowledgement (NACK) from the next node, retransmitting to the next node by channel-coding only an amount transmittable to the set channel among the other information which is not transmitted among the quantized information.

Patent Agency Ranking