Full-duplex self-interference weakening method and full-duplex self-interference weakening system

    公开(公告)号:US12120069B2

    公开(公告)日:2024-10-15

    申请号:US17949848

    申请日:2022-09-21

    摘要: This application provides a full-duplex self-interference weakening method and a full-duplex self-interference weakening system. The full-duplex self-interference weakening method includes: separately receiving, by a first port of a dual-polarized receive antenna and a second port of the dual-polarized receive antenna, a signal sent by a transmit antenna; and adjusting and combining the signal received by the first port of the dual-polarized receive antenna and/or the signal received by the second port of the dual-polarized receive antenna, to weaken interference caused by the transmit antenna to the dual-polarized receive antenna. The full-duplex self-interference weakening method and the full-duplex self-interference weakening system provided in this application resolve a problem that a quantity of antennas and an antenna location are limited in an existing antenna interference cancelation method.

    Background Noise Recorder
    4.
    发明公开

    公开(公告)号:US20240333325A1

    公开(公告)日:2024-10-03

    申请号:US18743593

    申请日:2024-06-14

    申请人: Apple Inc.

    IPC分类号: H04B1/10 H04B1/12 H04B15/00

    摘要: An electronic device may include wireless circuitry with a transmit antenna that transmits signals and a receive antenna that receives reflected signals. The wireless circuitry may detect a range between the device and an external object based on the transmitted signals and the reflected signals. When the range exceeds a first threshold, the wireless circuitry may use the transmitted signals and received signals to record background noise. When the range is less than a second threshold value, the wireless circuitry may detect the range based on the reflected signals and the recorded background noise. This may allow the range to be accurately measured within an ultra-short range domain even when the device is placed in different device cases, placed on different surfaces, etc.

    Method and apparatus for transmitting PDSCH in wireless communication system

    公开(公告)号:US12101727B2

    公开(公告)日:2024-09-24

    申请号:US17838854

    申请日:2022-06-13

    摘要: Disclosed is a communication technique for merging, with IoT technology, a 5G communication system for supporting a data transmission rate higher than that of a 4G system, and a system therefor. The present disclosure can be applied to intelligent services (for example, smart home, smart building, smart city, smart car or connected car, healthcare, digital education, retail, security, and safety-related services, and the like) on the basis of 5G communication technology and IoT-related technology. The purpose of the present invention is to efficiently transmit downlink data in a slot in which a synchronization signal block is transmitted and, according to the present invention, a base station in a communication system checks whether a synchronization signal block and downlink data are transmitted in the same slot, determines a downlink data transmission method when the synchronization signal block and the downlink data are transmitted in the same slot, and transmits the downlink data and a demodulation reference signal for the downlink data to a terminal on the basis of the downlink data transmission method, and the downlink data transmission method can be determined on the basis of at least one of the transmission pattern of the synchronization signal block, the relationship between the synchronization signal block and a subcarrier interval applied to the downlink data, and the index of the slot in which the synchronization signal block is to be transmitted.

    Receiver with Selected Suppression of Propagating Signals

    公开(公告)号:US20240305324A1

    公开(公告)日:2024-09-12

    申请号:US18180640

    申请日:2023-03-08

    IPC分类号: H04B1/10

    CPC分类号: H04B1/1036

    摘要: A compound receiver receives radio-frequency electromagnetic or other propagating radiation. A filter generates a filtered electrical signal representing at least one selected electromagnetic signal isolated from a monitored electrical signal. A transmitter retransmits, with a specified timing, the selected electromagnetic signal or signals represented within the filtered electrical signal. A protected receiver receives a combination of the electromagnetic signals and the selected electromagnetic signal or signals retransmitted from the transmitter. The protected receiver generates a detected electrical signal representing the combination. A relative position sensor adjusts the specified timing to suppress or cancel the selected electromagnetic signal or signals represented within the detected electrical signal.

    Architecture and algorithm for low complexity terrestrial interference cancellation

    公开(公告)号:US12081252B1

    公开(公告)日:2024-09-03

    申请号:US17951611

    申请日:2022-09-23

    IPC分类号: H04B1/10 H04B7/06 H04B7/08

    摘要: Technologies directed to correcting terrestrial interference using narrowband adaptive filtering and beamforming technology are described. One method includes receiving a first and second radio frequency (RF) signal. The method includes generating first digital samples corresponding to the first RF signal using a first sample rate and generating second digital samples corresponding to the first RF signal using a second sample rate that is lower than the first sample rate. The method further includes generating third digital samples corresponding to the second RF signal using the second sample rate. The method further includes determining parameters associated with a filtering process using the second digital samples and the third digital samples. The method further includes generating fourth digital samples using the parameters of the filtering process. The method further includes removing a first portion from the first RF signal using the first digital samples and the fourth digital samples.