Terminal equipment and periodic signal sending method

Abstract

The invention discloses terminal equipment. The terminal equipment comprises a central processor, a data storage device, a first selector and a digital-to-analog conversion module, wherein the data storage device comprises a first data storage device and a second data storage device, a first output end of the central processor is connected with an input end of the first selector, a second output end of the central processor is connected with a switch-on end of the first selector, a first output end of the first selector is connected with an input end of the first data storage device, an output end of the second data storage device is connected with an input end of the digital-to-analog conversion module, and the digital-to-analog conversion module is used for repeatedly sending periodic signals to receiving equipment within the sending time. Accordingly, the invention further provides a periodic signal sending method. The terminal equipment and the periodic signal sending method can uninterruptedly process initialization signals in the initialization process and carry out other calculations through software resources and hardware resources.

Description

technical field [0001] The present invention relates to the field of communications, and in particular, to a terminal device and a periodic signal sending method. Background technique [0002] The available frequency spectrum in an orthogonal frequency division multiplexing (Orthogonal Frequency Division Multiplexing, OFDM) system is divided into multiple subcarriers, and each subcarrier can carry different amounts of data according to the quality of the transmission channel. Therefore, after the OFDM system is started, a set of handshake and initialization mechanisms need to be established between the central office and the terminal to carry out protocol negotiation, channel discovery training and reference exchange. After these stages are completed, the data service interworking stage can be entered. [0003] When the central office and the terminal perform channel training, usually the terminal equipment (central office or terminal) sends a series of initialization signal...

AI Technical Summary

Problems solved by technology

Moreover, during the initialization process of channel training, the terminal device needs to continuously send a specific initialization signal to the receiving device. If there is an interruption in the middle, the receiving device will not detect the signal and drop the line.

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