Semi-orthogonal transmission-based communication method and device

    公开(公告)号:US10588118B2

    公开(公告)日:2020-03-10

    申请号:US15805386

    申请日:2017-11-07

    Abstract: A semi-orthogonal transmission-based communication method and a device, with the method including receiving, by first user equipment, downlink control information sent by a base station, where the downlink control information includes at least one of downlink control parameter of the first user equipment, pairing layer information of the first user equipment, modulation scheme information of second user equipment, power allocation information, an identifier of the first user equipment, or pairing information, and receiving, by the first user equipment, a data signal of an associated user equipment group that is sent by the base station, by the first user equipment, the data signal of the first user equipment according to the downlink control information and the data signal of the associated user equipment group.

    Pulse shaping method, transmitter, receiver, and system

    公开(公告)号:US10554353B2

    公开(公告)日:2020-02-04

    申请号:US16147410

    申请日:2018-09-28

    Abstract: This application discloses a pulse shaping method, a transmitter, a receiver, and a system. The transmitter includes an inverse Fourier transform module, a pulse shaping filter, a pulse shaping controller, and a parallel-to-serial conversion module. The pulse shaping controller is configured to: receive pulse configuration signaling, generate, based on the pulse configuration signaling, a pulse parameter corresponding to a to-be-configured pulse, and output the pulse parameter to the pulse shaping filter. The pulse shaping filter is configured to: perform subcarrier-level filtering on an output signal of the inverse Fourier transform module, perform pulse shaping processing on the output signal of the inverse Fourier transform module based on the pulse parameter, and output a processed signal in serial by using the P/S module. Different pulse parameters correspondingly represent different pulse shapes. In the foregoing solution, pulse shaping can be flexibly configured, to support different communication scenarios.

    METHOD, BASE STATION, AND USER EQUIPMENT FOR DETERMINING CHANNEL LOSS

    公开(公告)号:US20200028766A1

    公开(公告)日:2020-01-23

    申请号:US16586991

    申请日:2019-09-29

    Abstract: The application pertains to determining a rank of channel loss extent. A base station sends to a terminal a signaling indicating that there are N ranks of channel loss extent. Each rank has a corresponding number of random access preamble repetitions. The base station receives from the terminal device one or more transmissions of a random access preamble in a first number of repetitions of the random access preamble. The base station determines the rank of channel loss extent according to a random access preamble group in which the received random access preamble is located, or the first number of repetitions of the received random access preamble. A channel loss is a reference signal received power (RSRP). After determining the rank of channel loss extent, the base station determines a second number of repetitions corresponding to the determined rank of channel loss extent, for sending or receiving uplink/downlink information.

    Method for Sending Carrier Information, Base Station, and Terminal

    公开(公告)号:US20190342130A1

    公开(公告)日:2019-11-07

    申请号:US16517282

    申请日:2019-07-19

    Abstract: Embodiments of this application provide a method for sending carrier information, and the method includes: performing, by a base station, subcarrier mapping on a first carrier in a first subcarrier mapping manner, where subcarriers corresponding to the first subcarrier mapping manner have frequency offset of a first offset value relative to subcarriers corresponding to a second subcarrier mapping manner, and the subcarriers corresponding to the second subcarrier mapping manner are symmetric with respect to a carrier center frequency of the first carrier, and include no subcarrier on the carrier center frequency of the first carrier; and sending, by the base station, indication information to a terminal, where the indication information carries information about the first offset value.

    Method, base station, and user equipment for determining channel loss

    公开(公告)号:US10447563B2

    公开(公告)日:2019-10-15

    申请号:US15965853

    申请日:2018-04-28

    Abstract: The application pertains to determining a rank of channel loss extent. A base station sends to a terminal a signaling indicating that there are N ranks of channel loss extent. Each rank has a corresponding number of random access preamble repetitions. The base station receives from the terminal device one or more transmissions of a random access preamble in a first number of repetitions of the random access preamble. The base station determines the rank of channel loss extent according to a random access preamble group in which the received random access preamble is located, or the first number of repetitions of the received random access preamble. A channel loss is a reference signal received power (RSRP). After determining the rank of channel loss extent, the base station determines a second number of repetitions corresponding to the determined rank of channel loss extent, for sending or receiving uplink/downlink information.

    MESSAGE PROCESSING METHOD AND APPARATUS
    67.
    发明申请

    公开(公告)号:US20190230553A1

    公开(公告)日:2019-07-25

    申请号:US16370371

    申请日:2019-03-29

    Abstract: Embodiments of the present disclosure provide a message processing method and apparatus. The method includes: determining a transmission type of information to be sent to a terminal device and a transmission parameter corresponding to the transmission type; and sending, to the terminal device, a notification message carrying an indication field, where the indication field is used to indicate the transmission type and the transmission parameter, so that the terminal device receives data based on the transmission type and the transmission parameter; and at least one state of the indication field indicates that the transmission type is a first multiuser superposition transmission type, or at least one state of the indication field indicates that the transmission type is a third multiuser superposition transmission type. Based on the message processing method and apparatus provided in the embodiments of the present disclosure, transmission efficiency of a system can be increased.

    CONTROL INFORMATION TRANSMISSION METHOD, BASE STATION, AND USER EQUIPMENT

    公开(公告)号:US20190182802A1

    公开(公告)日:2019-06-13

    申请号:US16273814

    申请日:2019-02-12

    Abstract: A control information communication method, a base station, and user equipment are provided. A determination is made whether downlink control information (DCI) is used for multicast transmission or for paging. When the DCI is determined to be used for multicast transmission, the DCI is scrambled by using a single cell radio network temporary identifier (SC-RNTI). The DCI includes indication information and scheduling information, the indication information indicating whether a multicast control channel is updated. When the DCI is determined to be used for paging, the DCI is scrambled by using a paging radio network temporary identifier (P-RNTI). The scrambled DCI can be sent to user equipment by using a first downlink control information format.

    TRANSMISSION METHOD FOR COMMON MESSAGE AND DEVICE

    公开(公告)号:US20190036718A1

    公开(公告)日:2019-01-31

    申请号:US16148877

    申请日:2018-10-01

    Abstract: The present disclosure provides a transmission method for a common message and a device, which relates to a field of communication technologies and is invented for effectively ensuring that both a low cost MTC terminal and a normal LTE terminal may reliably receive the common message. The transmission method for the common message includes: determining common message transmission time instances X corresponding to a first terminal, wherein the common message transmission time instances X corresponding to the first terminal are a part of time instances of cell common message transmission time instances; sending a common message at the determined common message transmission time instances X corresponding to the first terminal, a bandwidth of frequency resources used for sending the common message being no larger than a data processing bandwidth that the first terminal is capable of supporting. The present disclosure may be used in an M2M application based on an LTE network.

    DOWNLINK CONTROL SIGNALING SENDING METHOD AND DEVICE

    公开(公告)号:US20180212802A1

    公开(公告)日:2018-07-26

    申请号:US15934586

    申请日:2018-03-23

    Abstract: The present disclosure provides a downlink control signaling sending method and device. The method includes: determining, by a base station, a first transmission type of a first terminal device and a second transmission type of a second terminal device; and sending demodulation information to the first terminal device according to the first transmission type and the second transmission type by using downlink control signaling, where the demodulation information is used to instruct the first terminal device to demodulate a transmission signal of the first terminal device that is received by the first terminal device. In this way, content of the demodulation information to be sent is specifically determined, so as to effectively resolve a problem that, during pairing at a plurality of layers, when different power ratios are configured on different subbands, a large amount of signaling needs to be consumed for notification to the first terminal device.

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