DATA RECEIVING METHOD, DATA SENDING METHOD, AND COMMUNICATIONS APPARATUS

    公开(公告)号:US20210135789A1

    公开(公告)日:2021-05-06

    申请号:US17147837

    申请日:2021-01-13

    Inventor: Ye WU Xiaoyan BI

    Abstract: A terminal device receives a DMRS and data from a network device. The DMRS and the data undergo Alamouti coding in space domain and frequency domain, or the DMRS and the data undergo Alamouti coding in space domain and time domain, and a DMRS obtained through the Alamouti coding is mapped to a first DMRS port and a second DMRS port. A modulation symbol of the first DMRS port is related to a modulation symbol of the second DMRS port. The terminal device demodulates the data based on the DMRS. Therefore, the DMRS corresponds to a transmission scheme of the data, to help the terminal device demodulate the data. This can reduce interference estimation complexity of the terminal device.

    INFORMATION TRANSMISSION METHOD, APPARATUS, AND SYSTEM

    公开(公告)号:US20200022169A1

    公开(公告)日:2020-01-16

    申请号:US16579240

    申请日:2019-09-23

    Abstract: This application discloses an information transmission method, apparatus, and system, and belongs to the field of communications technologies. The method includes: generating, by a base station, amount indication information, where the amount indication information is used to indicate a maximum amount of downlink control information; sending, by the base station, the amount indication information to user equipment; receiving, by the user equipment, the amount indication information; and receiving, by the user equipment, downlink control information based on the amount indication information. In this application, the amount indication information is sent to the user equipment, so that the user equipment receives the downlink control information based on the amount indication information. This can resolve a problem that complexity of blind detection performed by the user equipment is relatively high, thereby reducing the complexity of the blind detection performed by the user equipment.

    RADIO FRAME TRANSMISSION METHOD AND APPARATUS

    公开(公告)号:US20180110050A1

    公开(公告)日:2018-04-19

    申请号:US15821895

    申请日:2017-11-24

    Abstract: Implementation manners of the present disclosure disclose a radio frame transmission method, including: generating a radio frame, where the radio frame includes at least one first subframe, the at least one first subframe includes a downlink transmission field and an uplink transmission field, the downlink transmission field is used to carry a downlink signal, the uplink transmission field is used to carry an uplink signal, the downlink transmission field includes NDL symbols, the uplink transmission field includes NUL symbols, and a sum of NDL and NUL is less than or equal to a quantity of all symbols included in the first subframe; and sending the radio frame to a receive end, so that the receive end transmits a downlink signal according to the downlink transmission field and transmits an uplink signal according to the uplink transmission field.

    COMMUNICATION METHOD AND COMMUNICATION APPARATUS

    公开(公告)号:US20240048216A1

    公开(公告)日:2024-02-08

    申请号:US18486283

    申请日:2023-10-13

    CPC classification number: H04B7/06968 H04L5/0048 H04L25/0226

    Abstract: Embodiments of this application provide a communication method and a communication apparatus, to support flexible configuration of QCL information of different reference signal ports, improve a success rate of performing channel estimation or channel measurement on a transport layer by the reference signal port, and improve communication efficiency. In the method, a transmit end determines first indication information, where the first indication information is used to configure a first reference signal port, and the configuration indicates first quasi co-location QCL information of the first reference signal port; and then the transmit end sends the first indication information to a receive end.

    INDICATION METHOD AND APPARATUS, AND INFORMATION DETERMINING METHOD AND APPARATUS

    公开(公告)号:US20200170000A1

    公开(公告)日:2020-05-28

    申请号:US16777642

    申请日:2020-01-30

    Abstract: An indication method and apparatus, and an information determining method and apparatus are disclosed. Embodiments relate to the field of communications technologies. An indication method may include: generating indication information, where the indication information is used to indicate a transmit beam set, and a transmit beam in the transmit beam set is used to carry a same piece of DCI; and sending the indication information. The technical solutions may be applied to a scenario in which one or more network devices send DCI to a terminal and the DCI is carried on at least one beam for transmission.

    RANK INDICATION METHOD, RANK INDICATION REPORTING METHOD, DEVICE AND SYSTEM, AND STORAGE MEDIUM

    公开(公告)号:US20200083940A1

    公开(公告)日:2020-03-12

    申请号:US16684219

    申请日:2019-11-14

    Abstract: This application provides a technical solution for rank indication, and especially when a CQI number is not configured or a CQI number is 1, a network device configures a rank indication restriction parameter as that at least one of ranks whose index numbers are 0, 1, 2, and 3 is allowed to be reported by the terminal device; or even if the network device does not perform the foregoing configuration, and none of the ranks whose index numbers are 0, 1, 2, and 3 is allowed to be reported, the terminal device may select at least one rank for RI reporting, so as to resolve a problem that a system cannot work. In addition, according to embodiments of this application, bit overheads required for RI reporting may further be reduced.

    DATA SENDING METHOD AND APPARATUS, AND DATA RECEIVING METHOD AND APPARATUS

    公开(公告)号:US20200021339A1

    公开(公告)日:2020-01-16

    申请号:US16578701

    申请日:2019-09-23

    Inventor: Ye WU Xiaoyan BI

    Abstract: This application provides a data sending method and apparatus, and a data receiving method and apparatus, so that based on different channel quality, different transmission schemes can be flexibly used to transmit data, to improve data receiving quality and improve a spatial degree of freedom. The method includes: precoding, by a network device, a plurality of spatial flows to obtain a plurality of precoded data flows, where the plurality of spatial flows are homed to at least two transmission schemes, and the at least two transmission schemes include precoder cycling; and sending the plurality of precoded data flows.

    Channel Measurement Method and User Equipment

    公开(公告)号:US20190268795A1

    公开(公告)日:2019-08-29

    申请号:US16410180

    申请日:2019-05-13

    Abstract: Embodiments of the present disclosure provide a channel measurement method and user equipment. In one example method, a first transmission control information is received. A semi-persistent channel measurement is started when the first transmission control information meets a first preset condition, where the first preset condition includes at least one of the following conditions: the first transmission control information is associated with a radio network temporary identifier RNTI of a first preset type, and a value of a first group of information in the first transmission control information meets a first preset rule.

    CONTROL SIGNALING TRANSMISSION METHOD AND APPARATUS

    公开(公告)号:US20180220409A1

    公开(公告)日:2018-08-02

    申请号:US15939009

    申请日:2018-03-28

    Abstract: Embodiments of the present disclosure describe a control signaling reception method and apparatus. The method includes: receiving to-be-received control signaling using a control channel, wherein the control signaling carried on the control channel indicates operation of at least two terminal devices; and demodulating the to-be-received control signaling; wherein the control channel occupies a part of subcarriers in a system bandwidth in a frequency domain. According to the embodiments of the present disclosure, common control signaling that can indicate operation of multiple terminal devices and user dedicated control signaling that can indicate an operation behavior of only one terminal device are carried on different physical channels for transmission. In this way, different resource mapping manners and different signal processing manners can be used according to different transmission requirements, so as to optimally balance resource overheads and transmission reliability of different types of control signaling, thereby improving transmission resource use efficiency.

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