Abstract: Embodiments of the present invention provide a synchronization method, a synchronization apparatus, and a base station, which can implement strict synchronization between base stations with relatively low costs and relatively high security and reliability. The method includes: determining reference user equipment UE, where the reference UE can communicate with a reference base station and a to-be-synchronized base station at the same time, and the reference base station and the to-be-synchronized base station have completed frequency synchronization relative to a same clock reference source; determining timing offset between the to-be-synchronized base station and the reference base station according to a moment at which the reference base station and the to-be-synchronized base station receive a synchronization reference signal that is sent by the reference UE; and performing calibration on the to-be-synchronized base station according to the timing offset.

Abstract: Embodiments of the present invention provide a synchronization method, a synchronization apparatus, and a base station, which can implement strict synchronization between base stations with relatively low costs and relatively high security and reliability. The method includes: determining reference user equipment UE, where the reference UE can communicate with a reference base station and a to-be-synchronized base station at the same time, and the reference base station and the to-be-synchronized base station have completed frequency synchronization relative to a same clock reference source; determining timing offset between the to-be-synchronized base station and the reference base station according to a moment at which the reference base station and the to-be-synchronized base station receive a synchronization reference signal that is sent by the reference UE; and performing calibration on the to-be-synchronized base station according to the timing offset.

Abstract: Embodiments of the present invention provide a signal processing method and a terminal. The method includes: receiving a control signal. Channel state information between a coordinated base station and the terminal and between the serving base station and the terminal is determined. Information is about determined time difference or information about a phase difference of arrival between signals sent by the coordinated base station and the serving base station at the terminal according to the channel state information. Adjustment information is sent to the serving base station so that the serving base station adjusts the sending time, phase, or pre-coding manner of the signal according to the adjustment information.

Abstract: A base station clock apparatus, a base station system, and a method for clock synchronization are provided in embodiments of the present invention. The base station clock apparatus includes: a first-standard clock module based on a first standard, configured to generate a first frequency synchronization clock signal, a first phase synchronization signal, and a first system clock signal according to a first external clock signal, where the first system clock signal includes the first frequency synchronization clock signal and the first phase synchronization signal; a second-standard clock module based on a second standard that is different from the first standard, configured to receive the first frequency synchronization clock signal and the first phase synchronization signal from the first-standard clock module, and generate a second system clock signal, where the second system clock signal includes the first frequency synchronization clock signal and the first phase synchronization signal.

Abstract: Embodiments of the present invention provide a signal processing method and a terminal. The method includes: receiving a control signal. Channel state information between a coordinated base station and the terminal and between the serving base station and the terminal is determined. Information is about determined time difference or information about a phase difference of arrival between signals sent by the coordinated base station and the serving base station at the terminal according to the channel state information. Adjustment information is sent to the serving base station so that the serving base station adjusts the sending time, phase, or pre-coding manner of the signal according to the adjustment information.

Abstract: A base station clock apparatus, a base station system, and a method for clock synchronization are provided in embodiments of the present invention. The base station clock apparatus includes: a first-standard clock module based on a first standard, configured to generate a first frequency synchronization clock signal, a first phase synchronization signal, and a first system clock signal according to a first external clock signal, where the first system clock signal includes the first frequency synchronization clock signal and the first phase synchronization signal; a second-standard clock module based on a second standard that is different from the first standard, configured to receive the first frequency synchronization clock signal and the first phase synchronization signal from the first-standard clock module, and generate a second system clock signal, where the second system clock signal includes the first frequency synchronization clock signal and the first phase synchronization signal.