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    Apparatus and method for in multiple access in wireless communication
    42.
    发明授权
    Apparatus and method for in multiple access in wireless communication 有权

    公开(公告)号：US11695507B2

    公开(公告)日：2023-07-04

    申请号：US16497425

    申请日：2018-03-26

    Applicant: Samsung Electronics Co., Ltd

    Inventor： Chuang Zhang ,  Qi Xiong ,  Chen Qian ,  Bin Yu ,  Chengjun Sun

    IPC: H04L1/00 ,  H04L25/03 ,  H04L27/26 ,  H04L5/00 ,  H04W72/23

    CPC classification number: H04L1/0071 ,  H04L25/03866 ,  H04L27/2626 ,  H04L27/2627 ,  H04W72/23 ,  H04L5/0046

    Abstract: A multiple access method, a multiple access transmitter, and a multiple access receiver includes performing, by a transmitter, channel coding on a bit sequence to determine a coded sequence. The method also includes interleaving and/or scrambling the coded sequence, and performing multidimensional constellation modulation on the interleaved and/or scrambled sequence; performing grid mapping on the modulated symbol sequence to determine a mapped sequence, and transmitting the mapped sequence. The method also includes receiving, by a receiver, mixed signals from multiple transmitters, the mixed signals are obtained by performing, by each of the multiple transmitters, interleaving and/or scrambling, multidimensional constellation modulation and grid mapping on data. The method further includes decoding, by the receiver, mixed information according to interleaver information and/or scrambler information, multidimensional constellation information and grid mapping pattern information corresponding to each transmitter to obtain data corresponding to each transmitter.

    Method for random access, user equipment and base station
    44.
    发明授权
    Method for random access, user equipment and base station 有权

    公开(公告)号：US11617214B2

    公开(公告)日：2023-03-28

    申请号：US17329016

    申请日：2021-05-24

    Applicant: Samsung Electronics Co., Ltd.

    Inventor： Yingjie Zhang ,  Bin Yu ,  Chen Qian ,  Di Su ,  Qi Xiong ,  Jingxing Fu

    IPC: H04W16/28 ,  H04W74/08 ,  H04W52/36 ,  H04W52/42 ,  H04W52/48 ,  H04W52/50 ,  H04W74/00

    Abstract: The present disclosure relates to a communication method and system for converging a 5th-Generation (5G) communication system for supporting higher data rates beyond a 4th-Generation (4G) system with a technology for Internet of Things (IoT). The present disclosure may be applied to intelligent services based on the 5G communication technology and the IoT-related technology, such as smart home, smart building, smart city, smart car, connected car, health care, digital education, smart retail, security and safety services.
    Embodiments of the present invention provide a method for RACH re-attempt, a user equipment and a base station. The method comprises the steps of: by a base station, determining system configuration information and transmitting the system configuration information to a user equipment; and then, by the user equipment, transmitting a preamble sequence to perform random access, and if the random access is failed, performing RACH attempt according to the received RACH re-attempt configuration information to perform random access until a preset decision condition is satisfied. The embodiment of the present invention is used for RACH re-attempt when random access fails.

    Random access method, user equipment and base station
    46.
    发明授权
    Random access method, user equipment and base station 有权

    公开(公告)号：US11452140B2

    公开(公告)日：2022-09-20

    申请号：US16730520

    申请日：2019-12-30

    Applicant: Samsung Electronics Co., Ltd.

    Inventor： Chen Qian ,  Bin Yu ,  Qi Xiong ,  Feifei Sun ,  Yi Wang

    IPC: H04L12/413 ,  H04W74/08 ,  H04B17/318

    Abstract: The present disclosure relates to a communication method and system for converging a 5th-Generation (5G) communication system for supporting higher data rates beyond a 4th-Generation (4G) system with a technology for Internet of Things (IoT). The present disclosure may be applied to intelligent services based on the 5G communication technology and the IoT-related technology, such as smart home, smart building, smart city, smart car, connected car, health care, digital education, smart retail, security and safety services. The present disclosure provides a random access method, including: acquiring configuration information, transmitting a first message including a preamble and an uplink shared channel according to the configuration information, and receiving a second message including contention resolution information from a base station.

    Method and apparatus for transmitting uplink demodulation reference signals
    47.
    发明授权
    Method and apparatus for transmitting uplink demodulation reference signals 有权

    公开(公告)号：US11323967B2

    公开(公告)日：2022-05-03

    申请号：US16460403

    申请日：2019-07-02

    Applicant: Samsung Electronics Co., Ltd.

    Inventor： Jingxing Fu ,  Bin Yu ,  Chen Qian ,  Qi Xiong

    IPC: H04W72/04 ,  H04W74/00 ,  H04W52/24 ,  H04L5/00 ,  H04W52/14 ,  H04W52/32 ,  H04L5/14

    Abstract: A method and an apparatus for transmitting uplink demodulation reference signals (DMRSs) is provided. The method includes a user equipment (UE) determines an uplink DMRS format for demodulating a physical uplink shared channel (PUSCH) according to frequency-domain resources occupied by the PUSCH, in which the uplink DMRS format includes a comb occupied by a PUSCH DMRS sequence. The comb is subcarriers having specified intervals occupied by demodulation reference signals, and the specified intervals between the occupied subcarriers are same. For the DMRSs using the comb format, subcarriers with specific intervals are used for channel estimation, and values of the channel estimation are used for data demodulation. The UE transmits uplink information and the demodulation reference signals on physical resources using the uplink DMRS format. The present disclosure can improve the multiplexing ratio of uplink physical resources in a multi-UE scenario.

    Method and apparatus for performing random access
    48.
    发明授权
    Method and apparatus for performing random access 有权

    公开(公告)号：US11246164B2

    公开(公告)日：2022-02-08

    申请号：US16478460

    申请日：2018-01-16

    Applicant: Samsung Electronics Co., Ltd

    Inventor： Chen Qian ,  Bin Yu ,  Qi Xiong ,  Yingjie Zhang

    IPC: H04L27/26 ,  H04W74/08 ,  H04B1/44 ,  H04J13/12 ,  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). The present application discloses a method for generating a random access preamble, comprising the following steps of: receiving random access configuration information, the random access configuration information comprising preamble resource pool information, the preamble resource pool information comprising available base sequences; generating M sequences according to a base sequence, the M being greater than 1; and, generating a random access preamble according to the M sequences. The present application further discloses a device for generating a random access preamble, and a method and device for indicating random access configuration information. With the technical solutions disclosed by the present application, high frequency band multi-beam operations in 5G can be adapted, and the performance of the system in the random access process can be improved.

    System and method for common and UE-specific frequency resource scheduling
    50.
    发明授权
    System and method for common and UE-specific frequency resource scheduling 有权

    公开(公告)号：US11212799B2

    公开(公告)日：2021-12-28

    申请号：US16305856

    申请日：2017-05-30

    Applicant: Samsung Electronics Co., Ltd

    Inventor： Jingxing Fu ,  Bin Yu ,  Chen Qian ,  Qi Xiong ,  Chenxi Hao

    IPC: H04W72/04 ,  H04L5/00

    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). The present disclosure provides a resource scheduling method, which includes: determining, by a UE, a resource allocation indicating way in DCI of a first type search space and a resource allocation indicating way in DCI of a second type search space, wherein the resource allocation indicating way comprises an allocation unit of a UE frequency resource and a bandwidth and a location of all frequency resources available for UE frequency resource allocation; in the first type search space and the second type search space, performing, by the UE, blind detection for PDCCH/EPDCCH on the bandwidth and the location of all the frequency resources available for the UE frequency resource allocation in the corresponding resource allocation indicating way according to the allocation unit of the UE frequency resource in the corresponding resource allocation indicating way, determining a bandwidth and a location of an uplink resource and/or a downlink resource actually allocated for the UE. According to the present disclosure, in a condition that the UE cannot support the entire system bandwidth, an uplink resource and a downlink resource allocated by a base station can still be appropriately determined.

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