Signal sending method, network device, and terminal device

    公开(公告)号:US11212154B2

    公开(公告)日:2021-12-28

    申请号:US17028634

    申请日:2020-09-22

    Abstract: A signal receiving method, an apparatus and a communication system. The network device determines a subcarrier location of a to-be-sent first signal and a subcarrier location of a to-be-sent second signal, where subcarriers occupied by the first signal are continuous subcarriers in a first group of resource elements, subcarriers occupied by the second signal are continuous subcarriers in a second group of resource elements, a quantity of the subcarriers occupied by the first signal is the same as a quantity of the subcarriers occupied by the second signal, and a subcarrier spacing in the first group of resource elements is different from a subcarrier spacing in the second group of resource elements, the first signal and the second signal are primary synchronization signals. The network device sends the first signal to the terminal device and sends the second signal to the terminal device or other terminal device.

    Communication method and device
    13.
    发明授权

    公开(公告)号:US11026195B2

    公开(公告)日:2021-06-01

    申请号:US16266404

    申请日:2019-02-04

    Abstract: In a communication method disclosed in this application, a terminal device receives, from a network device, a synchronization signal and a system information signal that are generated based on a first subcarrier spacing. The terminal device sends a random access request signal to the network device based on a second subcarrier spacing and a first transmission resource, where a type of the first transmission resource corresponds to a third subcarrier spacing and/or a fourth subcarrier spacing. The terminal device further receives a random access response signal generated based on the fourth subcarrier spacing, where the random access response signal is used for instructing the terminal device to access a network or the random access response signal is used for instructing the terminal device to prepare to access network. Thereby, cell search for and random access to a network using a plurality of subcarrier spacings can be supported.

    Communication method, base station, and terminal device

    公开(公告)号:US10938546B2

    公开(公告)日:2021-03-02

    申请号:US16368629

    申请日:2019-03-28

    Abstract: The present invention relates to the field of wireless communications, and in particular, to an information sending and receiving method, a base station, and a terminal device that are used for uplink timing of a terminal device. In the information sending method, a first base station determines a first time adjustment parameter and a second time adjustment parameter; the first base station sends the first time adjustment parameter and the second time adjustment parameter to a terminal device. According to the solution provided in this application, the base station provides a plurality of time adjustment parameters for the terminal device to perform uplink signal timing, so as to provide flexible and efficient uplink subframe scheduling for the base station, thereby meeting various requirements for uplink timing.

    Information transmission method and related device

    公开(公告)号:US10819397B2

    公开(公告)日:2020-10-27

    申请号:US16663113

    申请日:2019-10-24

    Abstract: This application discloses an information transmission method and a related device. The method includes: determining, by a terminal device, a first time element and a second time element, where the first time element is a time in which the terminal device sends first information to a first network device on a first carrier, the second time element is a time in which the terminal device sends second information to a second network device on a second carrier, and the first time element and the second time element overlap in time; and when the terminal device determines to send the first information to the first network device on the first carrier in the first time element, sending, by the terminal device, the second information to the second network device on the second carrier in a third time element.

    Wireless communication method and device

    公开(公告)号:US10791522B2

    公开(公告)日:2020-09-29

    申请号:US16021889

    申请日:2018-06-28

    Abstract: Embodiments of the present invention provide a wireless communication method and a device. The wireless communication method includes: determining, by a base station, a transmission mode used to send data to a terminal in a current scheduling period, where the transmission mode is one of a paired transmission mode or a non-paired transmission mode; and sending, by the base station to the terminal, information indicating a terminal type corresponding to the transmission mode. According to the method and device, the terminal may perform corresponding processing according to the transmission mode, thereby improving processing efficiency. For example, the terminal may select an adaptive receiving algorithm to demodulate a signal, to improve demodulation efficiency and accuracy.

    Downlink control signaling sending method and device

    公开(公告)号:US10686633B2

    公开(公告)日:2020-06-16

    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.

    Method for generating random access channel ZC sequence, and apparatus

    公开(公告)号:US10524292B2

    公开(公告)日:2019-12-31

    申请号:US15367545

    申请日:2016-12-02

    Abstract: Embodiments provide a method for generating a random access channel ZC sequence, and an apparatus. A method for generating a random access channel ZC sequence includes: generating, by a base station, notification signaling, where the notification signaling instructs user equipment UE to generate a random access ZC sequence by using a second restricted set in a random access set; and sending, by the base station, the notification signaling to the UE, so that the UE generates the random access ZC sequence by using the second restricted set, where the random access set includes an unrestricted set, a first restricted set, and the second restricted set; and the second restricted set is a random access set that the UE needs to use when a Doppler frequency shift of the UE is greater than or equal to a first predetermined value.

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