Synchronization processing method and apparatus, and device

    公开(公告)号:US10887855B2

    公开(公告)日:2021-01-05

    申请号:US16359601

    申请日:2019-03-20

    Abstract: Embodiments of this application provide a synchronization processing method and apparatus, and a device. The method includes: sending, by a network device, a first synchronization signal and a second synchronization signal to a terminal device within a first time unit, where frequencies of first synchronization signals in all beams are the same, and each beam has a different difference between the frequency of the first synchronization signal and a frequency of the second synchronization signal; and determining, by the terminal device, an optimal transmit beam of the network device for the terminal device and a time sequence of the optimal transmit beam based on the first synchronization signal and the second synchronization signal. This method effectively reducing synchronization detection complexity of the terminal device.

    Uplink signal acknowledge method and apparatus

    公开(公告)号:US10862652B2

    公开(公告)日:2020-12-08

    申请号:US16409780

    申请日:2019-05-11

    Inventor: Jun Luo Jin Liu Pu Yuan

    Abstract: Embodiments provide an uplink signal acknowledge method. In the method, an uplink signal sent by a terminal device for tracking the terminal device can be received by a base station or a transmission/reception point (TRP). A downlink tracking acknowledge message can be sent to the terminal device. The downlink tracking acknowledge message can include at least one of the following: information about a status in which the base station or the TRP tracks the terminal device, timing advance information required by the terminal device to send an uplink tracking signal, power adjustment information required by the terminal device to send the uplink signal, and access control information of the terminal device. The base station or the TRP sends the downlink tracking acknowledge message to the terminal device, so that the terminal device learns whether a network has tracked the terminal device.

    Method and apparatus for transmitting pilot signal

    公开(公告)号:US10680773B2

    公开(公告)日:2020-06-09

    申请号:US16053185

    申请日:2018-08-02

    Abstract: This application discloses a method and an apparatus for transmitting a pilot signal, so that more flexible resource configuration can be achieved, thereby improving resource usage. The method includes: determining, by a transmit end device based on prestored N pilot patterns, a target time-frequency resource for transmitting a pilot signal, where the target time-frequency resource corresponds to a total quantity of layers of a to-be-transmitted data stream, the N pilot patterns are different from each other, and N is a natural number greater than or equal to 1; and sending, by the transmit end device, indication information to a receive end device, where the indication information is used to instruct the receive end device to transmit the pilot signal to the transmit end device based on the target time-frequency resource.

    Broadcast Signal Sending Method, Broadcast Signal Receiving Method, Network Device, and Terminal Device

    公开(公告)号:US20200163054A1

    公开(公告)日:2020-05-21

    申请号:US16673735

    申请日:2019-11-04

    Abstract: A broadcast signalling method performed by a network device having a protocol stack of with first and second protocol layers where the second protocol layer is below the first protocol layer, the method including generating, by the network device, first information at the first protocol layer, generating, by the network device, second information at the second protocol layer, where the second information is used to determine a time-frequency resource corresponding to one or more synchronization signal blocks (SSBs), processing, by the network device, the first information and the second information at the second protocol layer, and sending, by the network device to a terminal device by using a physical broadcast channel (PBCH) in the one or more SSBs, data obtained after second protocol layer processing.

    Signal Transmission Method and Apparatus
    35.
    发明申请

    公开(公告)号:US20200068517A1

    公开(公告)日:2020-02-27

    申请号:US16673567

    申请日:2019-11-04

    Abstract: This application provides a signal transmission method and apparatus. The method includes: generating a synchronization signal block, where the synchronization signal block includes a synchronization signal and a broadcast signal, a sequence number of the synchronization signal block is indicated by using at least one of sequence number indication information carried in the broadcast signal, a scrambling code of the broadcast signal, a cyclic redundancy check CRC mask of the broadcast signal, a bijective transformation parameter of the broadcast signal, cyclic shift information of the broadcast signal on which channel coding has been performed, and a system frame number carried in the broadcast signal, and the sequence number indicates a location of the synchronization signal block in a plurality of synchronization signal blocks; and sending the synchronization signal block.

    Downlink Synchronization Method and Apparatus

    公开(公告)号:US20200015182A1

    公开(公告)日:2020-01-09

    申请号:US16575781

    申请日:2019-09-19

    Inventor: Pu Yuan Jin Liu Jun Luo

    Abstract: A downlink synchronization method and apparatus, the method including receiving configuration information of a synchronization signal and physical broadcast channel (PBCH) block and that is sent by a transmission reception point (TRP), where the configuration information of the synchronization signal and PBCH block includes at least one of location indication information or time cycle indication information, determining at least one of a location of the synchronization signal and PBCH block in a synchronization signal burst set according to the location indication information or a time cycle of a synchronization signal burst set according to the time cycle indication information, receiving the synchronization signal and PBCH block according to at least one of the location or the time cycle, and performing downlink synchronization according to the synchronization signal and PBCH block.

    Precoding information collection method and transmission device

    公开(公告)号:US10484073B2

    公开(公告)日:2019-11-19

    申请号:US15625327

    申请日:2017-06-16

    Abstract: Embodiments of the present invention disclose a precoding information collection method and a transmission device and relate to the communications field. A specific solution is: precoding, by a transmit side, a first pilot signal according to a first precoding matrix, and sending a precoded first pilot signal to a receive side, where the first precoding matrix is the same as a precoding matrix used for current data transmission; precoding, by the transmit side, N second pilot signals according to N second precoding matrices, and sending N precoded second pilot signals to the receive side, where N is an integer greater than or equal to 1, the second precoding matrices used for precoding the second pilot signals are different from each other, and the N second precoding matrices are different from the first precoding matrix; and receiving, by the transmit side, precoding feedback information sent by the receive side.

    Information sending and receiving method, network device, and terminal device

    公开(公告)号:US11178629B2

    公开(公告)日:2021-11-16

    申请号:US16674849

    申请日:2019-11-05

    Inventor: Jin Liu Pu Yuan Jun Luo

    Abstract: This application provides an information sending and receiving method, a network device, and a terminal device, to send, on a PBCH, information used to determine an SSB, to implement time sequence alignment with a cell radio frame. The method includes: generating, by a network device, first information and second information at a first protocol layer, where the first information includes system information, the second information is used to determine a time-frequency resource corresponding to one or more synchronization signal blocks SSBs, and the first protocol layer is a protocol layer higher than a physical layer; transmitting, the first information and the second information from the first protocol layer to the physical layer; performing, physical layer processing on the first information and the second information; and sending, by the network device by using a physical broadcast channel PBCH in the SSB, data obtained based on the physical layer processing.

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