METHOD AND DEVICE FOR PROCESSING UPLINK DATA IN COMMUNICATION SYSTEM

    公开(公告)号:US20180287655A1

    公开(公告)日:2018-10-04

    申请号:US15765433

    申请日:2016-09-28

    CPC classification number: H04B1/40 H04B7/08 H04W76/00 H04W88/085

    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). A method of operating a first Radio Unit (RU) for transmitting an uplink signal in a communication system of the present disclosure includes receiving a first signal through an antenna, re-compensating a second signal delivered from a second RU through a transmission line by using a re-compensation factor, compensating a third signal obtained by adding the first signal and the re-compensated second signal by using a compensation factor, and delivering the compensated third signal to a higher-level RU or a Digital Unit (DU).

    POWER AMPLIFIER AND ELECTRONIC DEVICE INCLUDING SAME IN WIRELESS COMMUNICATION SYSTEM

    公开(公告)号:US20230336126A1

    公开(公告)日:2023-10-19

    申请号:US18335594

    申请日:2023-06-15

    CPC classification number: H03F1/0288 H03F3/245 H03F1/565 H03F2200/451

    Abstract: The disclosure relates to a pre-5th-Generation (5G) or 5G communication system to be provided for supporting higher data rates beyond a 4th-Generation (4G) communication system such as long term evolution (LTE). A Doherty power amplifier in a wireless communication system is provided. The Doherty power amplifier includes a differential carrier amplifier, a differential peaking amplifier, and an output matching circuit. The output matching circuit may include a primary tuning capacitor, a transformer, and a secondary tuning capacitor. The differential carrier amplifier may be connected to the primary tuning capacitor through a carrier capacitor, and inductors, of an output terminal of the differential carrier amplifier. The differential peaking amplifier may be connected to the primary tuning capacitor. The primary tuning capacitor, the inductors, and the carrier capacitor may be configured to function as a quarter-wave transformer.

    DEVICE FOR TESTING BEAM FORMING PROCESSOR
    5.
    发明申请

    公开(公告)号:US20200266536A1

    公开(公告)日:2020-08-20

    申请号:US16644736

    申请日:2018-08-29

    Abstract: The present invention relates to 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. In addition, the present invention provides a device for testing a beam forming processor, comprising: at least one power determination unit, which is electrically connected to the beam forming processor for performing beam forming, and determines the output power of the beam forming processor; and a control unit, which is connected to the power determination unit by wire and determines whether the beam forming processor is normal on the basis of the output power received from the power determination unit.

    ELECTRONIC DEVICE AND METHOD FOR PROVIDING FREQUENCY OFFSET IN FRONTHAUL INTERFACE

    公开(公告)号:US20250126005A1

    公开(公告)日:2025-04-17

    申请号:US18984592

    申请日:2024-12-17

    Abstract: According to various embodiments, a method performed by a radio unit (RU) may comprise: receiving, from a distributed unit (DU), a control plane (C-plane) message including frame structure information for indicating frequency offset information and a subcarrier spacing (SCS). The method may comprise identifying a frequency offset factor from among a plurality of frequency offset factors. The method may comprise obtaining a frequency offset value corresponding to a product of the frequency offset information, the SCS, and the frequency offset factor. The method may comprise transmitting a downlink signal on the basis of the frequency offset value. The plurality of frequency offset factors may include 0.5 and 0.25.

    APPARATUS AND METHOD FOR AMPLIFYING POWER IN TRANSMISSION DEVICE

    公开(公告)号:US20210218376A1

    公开(公告)日:2021-07-15

    申请号:US17250748

    申请日:2019-08-28

    Abstract: Disclosed is a 5G (5th generation) or pre-5G communication system for supporting a data transmission rate higher than that of a 4G (4th generation) communication system such as long-term evolution (LTE). A transmission device comprises: a first amplification unit having a common source structure, including cross coupled capacitors, and amplifying an input signal; a second amplification unit, having a common gate structure, for amplifying a signal output from the first amplification unit; and a first removal unit which is connected to output terminals of the first amplification unit and input terminals of the second amplification unit and which removes at least one portion of second harmonics. The first removal unit can offset, with respect to a fundamental frequency, at least some of parasitic capacitance generated from the output terminals of the first amplification unit and the input terminals of the second amplification unit, and can ground a signal having a secondary harmonic frequency with respect to the secondary harmonic frequency.

    APPARATUS AND METHOD FOR TRANSMITTING AND RECEIVING SIGNALS ON MUTIPLE BANDS IN WIRELESS COMMUNICATION SYSTEM

    公开(公告)号:US20210119662A1

    公开(公告)日:2021-04-22

    申请号:US17072512

    申请日:2020-10-16

    Abstract: A transceiver in a wireless communication system is provided. The transceiver includes a first circuit configured to convert a digital signal having a third bandwidth, a second circuit configured to separate the analog signal into a first analog signal corresponding to the first band and a second analog signal corresponding to the second band, up-convert the first analog signal and the second analog signal to generate a first radio frequency (RF) signal in the first band and a second RF signal in the second band, and output an RF signal having the third bandwidth, and a third circuit configured to separate the RF signal into the first RF signal and the second RF signal, adjust a phase of the first RF signal for beamforming in the first band, and adjust a phase of the second RF signal for beamforming in the second band.

    APPARATUS AND METHOD FOR AMPLIFYING TRANSMISSION SIGNALS IN WIRELESS COMMUNICATION SYSTEM

    公开(公告)号:US20210273665A1

    公开(公告)日:2021-09-02

    申请号:US17262961

    申请日:2019-07-25

    Abstract: The present disclosure relates to a 5th generation (5G) or pre-5G communication system for supporting a data transmission rate higher than that of a 4th generation (4G) communication system such as long term evolution (LTE). The present disclosure is to amplify transmission signals in a wireless communication system, and a transmitting device may include an antenna array including a plurality of antenna elements, a plurality of amplification chains for amplifying signals transmitted through the plurality of the antenna elements, and a power supply line for supplying powers to the plurality of the amplification chains. Herein, the powers used by power amplifiers included in at least one amplification chain of the plurality of the amplification chains may be divided by filtering or by independent pads and branch-lines.

    APPARATUS AND METHOD FOR TRANSMITTING AND RECEIVING SIGNALS ON MUTIPLE BANDS IN WIRELESS COMMUNICATION SYSTEM

    公开(公告)号:US20210184719A1

    公开(公告)日:2021-06-17

    申请号:US17119504

    申请日:2020-12-11

    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). A transceiver in a wireless communication system may include: a first circuit configured to up-convert a first digital signal corresponding to a first band and to up-convert a second digital signal corresponding to a second band using a same intermediate frequency (IF) frequency, and to analog-convert the up-converted signals into a first analog signal and a second analog signal; a second circuit configured to up-convert the first analog signal and the second analog signal to produce a first radio frequency (RF) signal of the first band and a second RF signal of the second band, and to output an RF signal of a third bandwidth including the first RF signal and the second RF signal; and a third circuit configured to separate the RF signal of the third bandwidth into the first RF signal and the second RF signal, to adjust a phase of the first RF signal to perform beamforming in the first band, and to adjust a phase of the second RF signal to perform beamforming in the second band.

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