System information transmission method and apparatus

    公开(公告)号:US10798641B2

    公开(公告)日:2020-10-06

    申请号:US16497245

    申请日:2017-03-24

    Abstract: A system information transmission method and apparatus are disclosed. A second terminal device sends identifier information, and a first terminal device obtains the identifier information sent by the second terminal device, where the identifier information includes a first cell identifier, and the first cell identifier is a cell identifier of a camped-on cell or a serving cell that is accessed before a direct link between the second terminal device and the first terminal device is established.

    Downlink Control Information Monitoring Method, Terminal, and Base Station

    公开(公告)号:US20200260418A1

    公开(公告)日:2020-08-13

    申请号:US16637583

    申请日:2017-08-08

    Abstract: A downlink control information monitoring method, a terminal, and a base station are applied to the field of communications technologies include monitoring, by the terminal, downlink control information in a first time resource unit range according to a first rule, and monitoring, by the terminal, downlink control information in a second time resource unit range according to a second rule, wherein the first time resource unit range is different from the second time resource unit range, and wherein the first rule is different from the second rule.

    User access method and user equipment

    公开(公告)号:US10667200B2

    公开(公告)日:2020-05-26

    申请号:US15773515

    申请日:2015-12-16

    Abstract: A user access method and user equipment (UE). A second device communicates with a first device at a predetermined moment in order to access the first device, where the predetermined moment is determined according to a discontinuous reception (DRX) cycle of the first device. In this process, the predetermined moment is determined according to the DRX cycle of the first device, and the second device communicates with the first device at the predetermined moment in order to access the first device such that the second device accesses the first device.

    METHOD AND APPARATUS FOR SENDING MODULATION AND CODING SCHEME (MCS)

    公开(公告)号:US20200099467A1

    公开(公告)日:2020-03-26

    申请号:US16695216

    申请日:2019-11-26

    Abstract: This application provides a method for communicating a modulation and coding scheme (MCS). A terminal device obtains a modulation order, a code rate, or a spectral efficiency, determines an index of a reference MCS from a mapping table based on the obtained modulation order, code rate, or spectral efficiency, and reports the index of the reference MCS to a network device. The mapping table includes one or more mapping relationships between an MCS index and a modulation order, a code rate, or a spectral efficiency. The terminal device may process uplink or downlink data based on the determined MCS, thereby improving data transmission reliability.

    POLAR CODING METHOD AND APPARATUS
    296.
    发明申请

    公开(公告)号:US20200059247A1

    公开(公告)日:2020-02-20

    申请号:US16664660

    申请日:2019-10-25

    Abstract: Example polar coding methods and apparatus are described. One example method includes determining a sequence used to code to-be-coded bits. Polar coding is performed on the to-be-coded bits by using the sequence to obtain coded bits. The sequence is used to represent a reliability order of N polarized channels, N is a mother code length of a polar code, and N is a positive integer power of 2.

    METHOD FOR DETERMINING CHANNEL QUALITY INDICATOR CQI INDEX, USER EQUIPMENT, AND BASE STATION

    公开(公告)号:US20200008104A1

    公开(公告)日:2020-01-02

    申请号:US16089203

    申请日:2016-03-31

    Abstract: In a method for determining a channel quality indicator (CQI) index, a user equipment (UE) determines quality of a channel between the UE and a base station. The UE sends a first index to the base station based on the quality of the channel. The first index is a CQI index corresponding to an average transmission rate supported by the channel. The UE sends an index difference to the base station based on the quality of the channel. The index difference indicates a difference between the first index and a second index. The second index is a CQI index corresponding to an instant transmission rate supported by the channel. A period for sending the first index is longer than a period for sending the index difference. A quantity of bits occupied by the index difference is less than a quantity of bits occupied by the first index.

    Uplink Control Signal Transmission Method and Apparatus

    公开(公告)号:US20190357201A1

    公开(公告)日:2019-11-21

    申请号:US16347137

    申请日:2016-12-28

    Abstract: An uplink control signal transmission method and apparatus, where the method includes determining, by a first device, a first quantity of symbols, and sending, by the first device, an uplink control signal to a second device on at least one resource based on the first quantity of symbols, where a quantity of symbols included in the uplink control signal is a second quantity of symbols, and the second quantity of symbols is greater than or equal to the first quantity of symbols.

    Slot Scheduling Method and Apparatus
    300.
    发明申请

    公开(公告)号:US20190313406A1

    公开(公告)日:2019-10-10

    申请号:US16347419

    申请日:2016-12-13

    Abstract: A slot scheduling method and apparatus are provided. A determined slot includes a first slot, the first slot includes a first idle time, and a time interval between a start moment of the first idle time and a start moment of the first slot is less than or equal to a preset time interval threshold, or a time interval between a start moment of the first idle time and an end moment of at least one OFDM symbol that is in the first slot and that is used to transmit control signaling is less than or equal to a preset time interval threshold. No first service is scheduled in the first idle time, thereby providing a transmission opportunity for a second service. In addition, time-domain locations of uplink transmission and downlink transmission of the first service and the second service do not overlap.

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