Wireless communication method, wireless communications apparatus, and wireless communications system

    公开(公告)号:US11025393B2

    公开(公告)日:2021-06-01

    申请号:US16579637

    申请日:2019-09-23

    Abstract: This application discloses a wireless communication method, a wireless communications apparatus, and a wireless communications system. An example wireless communication method includes: receiving, by a terminal, indication information of uplink data transmission from a base station; determining, by the terminal, a base sequence configuration of a reference signal sequence corresponding to the modulation scheme of the uplink data transmission, and generating a dedicated demodulation reference signal based on the determined base sequence configuration of the reference signal sequence, where the modulation scheme of the uplink data transmission is one of a plurality of modulation schemes supported by the terminal, the plurality of modulation schemes include at least π/2 binary phase shift keying (BPSK), and a base sequence configuration of a reference signal sequence corresponding to the π/2 BPSK is different from a base sequence configuration of a reference signal sequence corresponding to another modulation scheme in the plurality of modulation schemes.

    Data transmission method and communications device

    公开(公告)号:US10924315B2

    公开(公告)日:2021-02-16

    申请号:US16371801

    申请日:2019-04-01

    Abstract: Embodiments of the present disclosure relate to a data transmission method and a communications device. The method includes: performing an interpolation operation on a first signal sequence to obtain a second signal sequence, where a length of the second signal sequence is greater than a length of the first signal sequence; mapping the second signal sequence onto a subcarrier to obtain a second signal sequence that is on the subcarrier; performing an inverse fast Fourier transform (IFFT) on the second signal sequence that is on the subcarrier, to obtain a time-domain signal, and transmitting the time-domain signal. According to the embodiments of the present disclosure, a delay deviation can be better resisted.

    DATA PROCESSING METHOD, APPARATUS, AND SYSTEM

    公开(公告)号:US20190222456A1

    公开(公告)日:2019-07-18

    申请号:US16368618

    申请日:2019-03-28

    Abstract: This application relates to the field of wireless communications technologies, and in particular, to a data processing method, apparatus, and system. This application provides a data processing method. A data sending device modulates a to-be-transmitted bit sequence, splits a real part and an imaginary part of a complex-valued symbol that is obtained through the modulation into two symbols to form a symbol sequence, performs phase rotation of symbols in the symbol sequence, and performs sending by using a single carrier frequency division multiple access (SC-FDMA) symbol. This application is intended to reduce a peak-to-average power ratio (PAPR) of a transmit signal of an orthogonal frequency division multiplexing (OFDM) system by splitting a real part and an imaginary part of a to-be-transmitted signal, and improve link quality of an entire transmission system.

    CHANNEL QUALITY INDICATOR FEEDBACK METHOD, USER EQUIPMENT, AND NETWORK DEVICE

    公开(公告)号:US20180302207A1

    公开(公告)日:2018-10-18

    申请号:US16011422

    申请日:2018-06-18

    Abstract: Embodiments of the present disclosure disclose a channel quality indicator (CQI) feedback method, user equipment, and a network device. The method includes: receiving, by the user equipment, a secondary pilot receive signal of each single sector and that is obtained after a secondary pilot transmit signal of each single sector transmitted by a network device is transmitted by using a radio channel; estimating, by the user equipment, a channel matrix according to the secondary pilot receive signal of each single sector and the pre-known secondary pilot transmit signal of each single sector; estimating, by the user equipment, a CQI of each single sector according to the channel matrix and a first precoding matrix, and estimating a CQI of each joint sector according to the channel matrix and a second precoding matrix; and feeding back, by the user equipment, each CQI to the network device.

    Control Information Indication Method and Apparatus

    公开(公告)号:US20180160446A1

    公开(公告)日:2018-06-07

    申请号:US15884854

    申请日:2018-01-31

    CPC classification number: H04W74/002 H04W24/02 H04W48/12

    Abstract: Embodiments of the present invention disclose a control information indication method and apparatus, and relate to the field of communications technologies. The method includes: sending at least one piece of control information carried in a first serving cell to a user equipment (UE), where the control information includes a carrier identity, so that the UE parses an information field of the control information to acquire the carrier identity, determines, according to the carrier identity, a serving cell to which data corresponding to the control information belongs, and performs demodulation and decoding on the data in the serving cell by using the control information.

    Control information indication method and apparatus

    公开(公告)号:US09924537B2

    公开(公告)日:2018-03-20

    申请号:US14858683

    申请日:2015-09-18

    CPC classification number: H04W74/002 H04W24/02 H04W48/12

    Abstract: Embodiments of the present invention disclose a control information indication method and apparatus, and relate to the field of communications technologies. The method includes: sending at least one piece of control information carried in a first serving cell to a user equipment UE, where the control information includes a cell identity (CID), so that the UE parses an information field of the control information to acquire the CID, determines, according to the CID, a serving cell to which data corresponding to the control information belongs, and performs demodulation and decoding on the data in the serving cell by using the control information.

    Multi-System Coordinated Communication Method and Apparatus, and Communications Node
    9.
    发明申请
    Multi-System Coordinated Communication Method and Apparatus, and Communications Node 审中-公开
    多系统协调通信方法和装置以及通信节点

    公开(公告)号:US20160056931A1

    公开(公告)日:2016-02-25

    申请号:US14933332

    申请日:2015-11-05

    CPC classification number: H04L5/0035 H04W72/0406 H04W88/10

    Abstract: A multi-system coordinated communication method includes: when transmitting data by using a second system, adding, by a first communications node to data information of a first system, control information used by the second system; and indicating, in control information of the first system, that the data information of the first system includes the control information used by the second system, where the first system and the second system are: systems of different modes, or systems of a same mode that use different resources; and separately sending, by the first communications node to a second communications node by using a control channel and a data channel of the first system, the control information and the data information of the first system. the method in the embodiments can save channel resources of the second system and improve utilization of system resources.

    Abstract translation: 多系统协调通信方法包括:当通过第二系统发送数据时,由第一通信节点向第一系统的数据信息添加由第二系统使用的控制信息; 并且在第一系统的控制信息中指示第一系统的数据信息包括由第二系统使用的控制信息,其中第一系统和第二系统是:不同模式的系统或相同模式的系统 使用不同的资源; 并且通过使用第一系统的控制信道和数据信道,第一系统的控制信息和数据信息,由第一通信节点分别发送到第二通信节点。 实施例中的方法可以节省第二系统的信道资源并提高系统资源的利用率。

    Method, Apparatus, and System for Sending Data in Hybrid Networking
    10.
    发明申请
    Method, Apparatus, and System for Sending Data in Hybrid Networking 有权
    用于在混合网络中发送数据的方法,装置和系统

    公开(公告)号:US20160013843A1

    公开(公告)日:2016-01-14

    申请号:US14858853

    申请日:2015-09-18

    Abstract: Embodiments of the present invention provide a method, an apparatus, and a system for sending data in hybrid networking. The method includes: determining an order quantity N of highest-order MIMO data and a quantity M of data types in the hybrid networking, where N is an even number not less than 2, and M is a natural number not less than 2; performing ith linear transformation processing on ith-type data among the M types of data, to obtain N pieces of ith-type output data having a same power, where i is a natural number less than or equal to M; and respectively outputting the N pieces of ith-type output data having a same power to N physical antennas, so that each physical antenna combines output data received by the physical antenna and then sends data obtained after the combining.

    Abstract translation: 本发明的实施例提供了一种用于在混合组网中发送数据的方法,装置和系统。 该方法包括:确定混合组网中最高阶MIMO数据的订单量N和数据类型的数量M,其中N是不小于2的偶数,M是不小于2的自然数; 对M类数据中的第i类数据执行第i次线性变换处理,以获得具有相同功率的N个第i类输出数据,其中i是小于或等于M的自然数; 并分别向N个物理天线输出具有相同功率的N个第i类输出数据,使得每个物理天线组合由物理天线接收的输出数据,然后发送在组合之后获得的数据。

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