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.

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.

A terminal apparatus for communicating with a base station apparatus includes a receiver configured to receive at least one synchronization signal burst periodically transmitted. A first synchronization signal and a second synchronization signal are mapped at a particular time position in a radio frame. Each of the at least one synchronization signal burst includes at least one synchronization signal block. Each of the at least one synchronization signal block includes at least one of the first synchronization signal, the second synchronization signal, or a physical broadcast channel. The receiver receives, from the base station apparatus, information for indicating the number of the at least one synchronization signal block included in each of the at least one synchronization signal burst.

A terminal apparatus for communicating with a base station apparatus includes a receiver configured to receive at least one synchronization signal burst periodically transmitted. A first synchronization signal and a second synchronization signal are mapped at a particular time position in a radio frame. Each of the at least one synchronization signal burst includes at least one synchronization signal block. Each of the at least one synchronization signal block includes at least one of the first synchronization signal, the second synchronization signal, or a physical broadcast channel. The receiver receives, from the base station apparatus, information for indicating the number of the at least one synchronization signal block included in each of the at least one synchronization signal burst.

Certain aspects of the present disclosure provide a method for changing a beam pair utilized by a user equipment (UE) for communicating over a full-duplex frequency channel. The method includes establishing full-duplex communication with a base station (BS) utilizing a first beam pair comprising a first uplink beam and a first downlink beam utilized by the UE for the full-duplex communication. The method also includes transmitting a first signal to the BS, the first signal comprising a request to change the first beam pair. The method also includes receiving, via the first downlink beam, a second signal responsive to the request, the second signal configured to enable the UE to change from the first beam pair to a second beam pair and maintain full-duplex communication with the BS, wherein the second beam pair includes one or more of a second uplink beam or a second downlink beam.

A memory device includes an internal clock generator, a deserializer, a data comparator, and a clock controller. The internal clock generator generates a plurality of internal clock signals, which have different phases from each other, by dividing a clock signal received from a host. The deserializer deserializes serial test data received from a host as pieces of internal data using the internal clock signals. The data comparator compares reference data with the internal data. The clock controller corrects a clock dividing start time point of the clock signal of the internal clock generator based on the result of the comparison of the reference data and the internal data.

A memory device includes an internal clock generator, a deserializer, a data comparator, and a clock controller. The internal clock generator generates a plurality of internal clock signals, which have different phases from each other, by dividing a clock signal received from a host. The deserializer deserializes serial test data received from a host as pieces of internal data using the internal clock signals. The data comparator compares reference data with the internal data. The clock controller corrects a clock dividing start time point of the clock signal of the internal clock generator based on the result of the comparison of the reference data and the internal data.

A wireless media distribution system is provided comprising an access point (6) for broadcasting media and a plurality of stations (2) for reception and playback of media. Each station is configured for receiving and decoding a timestamp in a beacon frame transmitted repeatedly from the access point. This is used to control the output signal of a station physical layer clock (12) which is then used as a clock source for an application layer time synchronisation protocol. This application layer time synchronisation protocol can then be used in the station to control an operating system clock (8) for regulating playback of media.

A wireless media distribution system is provided comprising an access point (6) for broadcasting media and a plurality of stations (2) for reception and playback of media. Each station is configured for receiving and decoding a timestamp in a beacon frame transmitted repeatedly from the access point. This is used to control the output signal of a station physical layer clock (12) which is then used as a clock source for an application layer time synchronisation protocol. This application layer time synchronisation protocol can then be used in the station to control an operating system clock (8) for regulating playback of media.

The present application discloses a data transmission method, a data transmission device, and a computer readable storage medium. The data transmission method includes: determining a logic level of the data signal according to detection potential of each sampling point in the data signal, and regenerating the data signal according to the logic level and a preset amplitude.