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    Frequency domain spreading and de-spreading method and apparatus
    12.
    发明授权
    Frequency domain spreading and de-spreading method and apparatus 有权

    公开(公告)号：US10798686B2

    公开(公告)日：2020-10-06

    申请号：US15763087

    申请日：2016-08-30

    Applicant: CHINA ACADEMY OF TELECOMMUNICATIONS TECHNOLOGY

    Inventor： Xuejuan Gao ,  Fang-Chen Cheng

    IPC: H04W56/00 ,  H04W72/04 ,  H04L1/00 ,  H04L1/16 ,  H04J13/00 ,  H04L5/00 ,  H04B1/707 ,  H04W72/14

    Abstract: The present application provides a frequency domain spreading and de-spreading method and apparatus. In embodiments of the present application, user equipment acquires indication information of an orthogonal sequence used by a transmission physical uplink control channel (PUCCH); the user equipment spreads, according to an orthogonal sequence corresponding to the indication information of the orthogonal sequence, a frequency domain for uplink control information borne by the PUCCH; and the user equipment transmits, over a frequency domain resource corresponding to the PUCCH, the uplink control information of which the frequency domain is spread. The present application can spread a frequency domain for uplink control information borne by a PUCCH.

    CORE NETWORK ACCESSING METHOD, BASE STATION, AND USER EQUIPMENT
    13.
    发明申请
    CORE NETWORK ACCESSING METHOD, BASE STATION, AND USER EQUIPMENT 审中-公开

    公开(公告)号：US20200236682A1

    公开(公告)日：2020-07-23

    申请号：US16635915

    申请日：2018-06-19

    Applicant: CHINA ACADEMY OF TELECOMUNICATIONS TECHNOLOGY

    Inventor： Haiyang QUAN ,  Jing LIANG

    IPC: H04W72/04 ,  H04W76/27

    Abstract: The core network accessing method includes: transmitting PLMN indication information about a base station to a UE, the PLMN indication information including information about PLMNs connected to a core network of a first type and information about PLMNs connected to a core network of a second type; receiving information about a target PLMN selected by the UE in accordance with the PLMN indication information and matching the UE, and determining a target core network to be accessed in accordance with the information about the target PLMN; and interacting with the target core network and the UE, so as to enable the UE to access the target core network via the target PLMN.

    METHOD AND DEVICE FOR DETERMINING PREAMBLE SEQUENCE OF PHYSICAL RANDOM ACCESS CHANNEL
    15.
    发明申请
    METHOD AND DEVICE FOR DETERMINING PREAMBLE SEQUENCE OF PHYSICAL RANDOM ACCESS CHANNEL 审中-公开

    公开(公告)号：US20200120712A1

    公开(公告)日：2020-04-16

    申请号：US16496947

    申请日：2018-02-22

    Applicant: CHINA ACADEMY OF TELECOMUNICATIONS TECHNOLOGY

    Inventor： Bin REN ,  Ren DA ,  Fang-Chen CHENG ,  Ekpenyong TONY

    IPC: H04W74/08 ,  H04J13/00 ,  H04W74/00 ,  H04L5/00 ,  H04L27/26

    Abstract: Disclosed are a method and device for determining a preamble sequence of a physical random access channel. The method comprises: includes in a previous stage, receiving respective preamble sub-sequences, and determining instances of time at which the respective preamble sub-sequences are detected in a detection window; in a current stage, receiving respective preamble sub-sequences, and determining instances of time at which the respective preamble sub-sequences are detected in the detection window; and determining preamble sub-sequences belonging to a same preamble sequence according to the instances of time at which the respective preamble sub-sequences are detected in the current stage, and the instances of time at which the respective preamble sub-sequences are detected in the previous stage.

    Reference signal mapping method and device
    16.
    发明授权
    Reference signal mapping method and device 有权

    公开(公告)号：US10560239B2

    公开(公告)日：2020-02-11

    申请号：US16082529

    申请日：2017-02-08

    Applicant: CHINA ACADEMY OF TELECOMUNICATIONS TECHNOLOGY

    Inventor： Hui Li ,  Qiubin Gao ,  Runhua Chen ,  Rakesh Tamrakar ,  Wenhong Chen

    IPC: H04L5/00 ,  H04B7/0456 ,  H04B7/06

    Abstract: The present disclosure provides a reference signal mapping method and a reference signal mapping device. An N-port reference signal pattern is acquired in accordance with a 4-port or 8-port reference signal pattern, and N is an integer greater than 16. The N-port reference signal pattern includes an 18-port, 20-port, 24-port, 28-port or 32-port reference signal pattern. In the case of mapping a reference signal, RE positions to which a CSI-RS is mapped are determined in accordance with the N-port reference signal pattern, and resource mapping is performed on the CSI-RS in accordance with the RE positions, so as to map more-than-16-port CSI-RS, thereby to transmit the more-than-16-port CSI-RS.

    METHOD AND DEVICE FOR DATA TRANSMISSION
    17.
    发明申请
    METHOD AND DEVICE FOR DATA TRANSMISSION 审中-公开

    公开(公告)号：US20190159021A1

    公开(公告)日：2019-05-23

    申请号：US16313818

    申请日：2017-06-29

    Applicant: CHINA ACADEMY OF TELECOMUNICATIONS TECHNOLOGY

    Inventor： Yali ZHAO ,  Chandrika Kumudinie WORRALL ,  Fangli XU

    IPC: H04W8/24 ,  H04W28/02 ,  H04W76/11 ,  H04W80/02 ,  H04L1/18

    Abstract: A method and device for data transmission are provided, the method includes: determining, by a terminal, a correspondence between bearer types and user-plane configurations: receiving, by the terminal, bearer type indication information indicated by a network side, the bearer type indication information carrying a bearer type identity; determining, by the terminal, the user-plane configuration corresponding to a bearer according to the bearer type identity carried in the bearer type indication information and the correspondence between the bearer types and the user-plane configurations; and performing, by the terminal, data transmission according to the determined user-plane configuration.

    METHOD AND DEVICE FOR DETERMINING MULTI-USER TRANSMISSION MODE
    18.
    发明申请
    METHOD AND DEVICE FOR DETERMINING MULTI-USER TRANSMISSION MODE 审中-公开

    公开(公告)号：US20180375551A1

    公开(公告)日：2018-12-27

    申请号：US16065033

    申请日：2016-11-17

    Applicant: CHINA ACADEMY OF TELECOMUNICATIONS TECHNOLOGY

    Inventor： Yang SONG ,  Shaoli Kang ,  Bin REN

    IPC: H04B7/0452 ,  H04B7/0456 ,  H04W72/12 ,  H04B7/06

    Abstract: A method and a device for determining multi-user transmission mode are provided. The method includes: grouping terminals based on channel spatial characteristics of the terminals; allocating data transmission modes to the terminals, where data transmission of the terminals in different groups is performed on an identical scheduling time-frequency resource and in a Multi-User Multiple-Input Multiple-Output (MU-MIMO) mode, and data transmission of the terminals in an identical group is performed on the scheduling time-frequency resource and in a non-orthogonal multiple access mode.

    METHOD FOR FEEDING BACK CHANNEL STATE INFORMATION, BASE STATION AND USER EQUIPMENT
    19.
    发明申请
    METHOD FOR FEEDING BACK CHANNEL STATE INFORMATION, BASE STATION AND USER EQUIPMENT 审中-公开

    公开(公告)号：US20180316405A1

    公开(公告)日：2018-11-01

    申请号：US15771079

    申请日：2016-12-29

    Applicant: CHINA ACADEMY OF TELECOMUNICATIONS TECHNOLOGY

    Inventor： Chuanjun LI ,  Xin SU ,  Yang SONG

    IPC: H04B7/06 ,  H04B7/0456 ,  H04L5/00 ,  H04B7/04

    CPC classification number: H04B7/0626 ,  H04B7/04 ,  H04B7/043 ,  H04B7/0456 ,  H04B7/06 ,  H04L1/06 ,  H04L5/0048

    Abstract: A method for feeding back CIS includes: dividing a plurality of antenna ports into a plurality of groups of antenna ports; configuring for each group a same intra-group codebook set consisting of a plurality of intra-group precoding matrices, allocating for each group a plurality of different reference signals corresponding to a same reference resource, and configuring for each antenna port in each group a precoded reference signal acquired after a precoding operation using the intra-group precoding matrices, the number of the reference resources corresponding to the number of the intra-group precoding matrices in the intra-group codebook set, and the number of the reference signals corresponding to each reference resource corresponding to the number of groups of inter-group antenna ports; transmitting the precoded reference signal to a UE via each antenna port; and receiving the CSI fed back by the UE after measurement on the reference signal.

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