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    Apparatus and method for adjusting receive beam gain in a wireless communication system
    82.
    发明授权
    Apparatus and method for adjusting receive beam gain in a wireless communication system 有权

    公开(公告)号：US10680690B2

    公开(公告)日：2020-06-09

    申请号：US15882075

    申请日：2018-01-29

    Applicant: Samsung Electronics Co., Ltd.

    Inventor： Cheol Jeong ,  Hyun-Kyu Yu ,  Jeong-Ho Park ,  Kyung-Whoon Cheun ,  Su-Ryong Jeong

    IPC: H04B7/06 ,  H01Q1/24 ,  H01Q3/36 ,  H04B7/08 ,  H01Q3/34 ,  H01Q21/08

    Abstract: The present disclosure is related to a 5th generation (5G) or pre-5G communication system to provide higher data rates than a 4th generation (4G) communication system such as long term evolution (LTE). A method for adjusting a receive beam gain by a user equipment (UE) in a wireless communication system is provided. The method includes estimating a received signal quality value based on a reference signal received from a base station (BS), transmitting information about the estimated received signal quality value to the BS, comparing the received signal quality value with a minimum received signal quality value required for successful reception of data from the BS, and adjusting a receive beam gain to be used for data reception by turning on/off a radio frequency (RF) chain formed for each of antennas included in the UE based on a result of the comparison.

    Uplink synchronization device and method of wireless communication system
    84.
    发明授权
    Uplink synchronization device and method of wireless communication system 有权

    公开(公告)号：US10334540B2

    公开(公告)日：2019-06-25

    申请号：US15327018

    申请日：2015-07-17

    Applicant: Samsung Electronics Co., Ltd.

    Inventor： Cheol Jeong ,  Jeong-Ho Park ,  Jae-Won Kim ,  Hyun-Kyu Yu

    IPC: H04W56/00

    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). Embodiments of the present invention are to provide a method and apparatus for performing uplink synchronization in a wireless communication system. According to an embodiment of the present invention, a method of operating a terminal in a wireless communication system includes the processes of: receiving an adjustment message including a first timing advance (TA) value from a first base station; and transmitting an uplink signal to a second base station based on a second TA value for the second base station that is determined based on the first TA value. According to an embodiment of the present invention, it is possible to decrease the overhead of an uplink resource by adjusting an uplink signal time transmitted to other base stations or other cells by using information for uplink synchronization in a base station or cell in a wireless communication system.

    Method and apparatus for operating multiple modulation schemes in wireless communication system
    85.
    发明授权
    Method and apparatus for operating multiple modulation schemes in wireless communication system 有权

    公开(公告)号：US10305710B2

    公开(公告)日：2019-05-28

    申请号：US14915195

    申请日：2014-08-25

    Applicant: Samsung Electronics Co., Ltd.

    Inventor： Min Sagong ,  Jeong-Ho Park ,  Jae-Won Kim ,  Hyun-Kyu Yu ,  Chi-Woo Lim ,  Su-Ryong Jeong ,  Sung-Nam Hong

    IPC: H04L27/00 ,  H04L27/32 ,  H04L27/12 ,  H04L27/36 ,  H04J11/00 ,  H04L5/00

    Abstract: The present invention relates to a method for operating, by a base station, multiple modulation schemes in a wireless communication system, the method comprising the steps of: calculating the number of terminals, among the terminals in a cell managed by the base station, of which a channel state is included in a state that is lower than a preset state; reporting information related to the calculated number of terminals to an upstream entity of the base station; receiving information about a band, assigned by the upstream entity, for a hybrid frequency shift keying (FSK) and quadrature amplitude modulation (QAM) (FQAM) scheme on the basis of a QAM scheme and a FSK scheme; and transmitting downwardly the information about the band for the FQAM scheme to the terminals of which a channel state is included in a state that is lower than the preset state. Other modified embodiments on the basis of the technical concept of the present invention are also possible.

    Communication method and apparatus using beamforming in a wireless communication system
    86.
    发明授权
    Communication method and apparatus using beamforming in a wireless communication system 有权

    公开(公告)号：US10230440B2

    公开(公告)日：2019-03-12

    申请号：US15496633

    申请日：2017-04-25

    Applicant: Samsung Electronics Co., Ltd.

    Inventor： Tae-Young Kim ,  Hyun-Kyu Yu ,  Ji-Yun Seol

    IPC: H04B7/06 ,  H04B7/0452 ,  H04B7/0456

    Abstract: A communication method and an apparatus using beamforming in a wireless communication system are provided. The communication method includes determining a candidate user set including one or more Mobile Stations (MSs), for Multiple User-Multiple Input Multiple Output (MU-MIMO) transmission, transmitting beam information indicating best Base Station (BS) transmission beams of the MSs of the candidate user set to the MSs of the candidate user set, receiving Precoding Matrix Index (PMI) information indicating a PMI to be used for baseband precoding from each of the MSs of the candidate user set, the PMI information being determined based on the beam information, and transmitting a signal precoded based on the PMI information to at least one MS.

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