Parallel Interface Timing Control Device

Abstract

The invention discloses a parallel interface sequential control device which is positioned at an analog baseband or digital baseband. The device comprises the following modules: a control module used for receiving control information from a system and status indication information from an opposite-end baseband and generating a control sequence and a status indication signal according to the control information and the status indication information, wherein the control sequence can control a channel multiplexing module to send data and control a channel demultiplexing module to receive data and the status indication signal indicates the data sending / receiving status; the channel multiplexing module used for sending first data through a two-channel to the opposite-end baseband according to the control sequence when the status indication signal indicates the sending status; and the channel demultiplexing module used for receiving second data from the opposite-end baseband through the two-channel according to the control sequence when the status indication signal indicates the receiving status. According to the invention, interface sequential control complexity is simplified, and power consumption is minimized.

Description

Technical field [0001] The invention relates to the field of communications, and in particular to a parallel interface timing control device. Background technique [0002] With the rapid development of mobile communication technology, from the first generation of analog communication to the second generation of digital mobile communication, to the third generation of broadband mobile communication and the fourth generation of Long Term Evolution (LTE) technology. In addition to the complete replacement of the first-generation analog technology, the second, third, and fourth-generation mobile communications will exist at the same time now and in the future, forming a long-term coexistence of multi-standard and multi-standard mobile communications. In this way, users' requirements for mobile terminals have also changed from traditional single-mode to multi-mode requirements. Under this demand, Global System for Mobile communication (GSM) single-mode multi-mode multiple standby, G...

AI Technical Summary

Problems solved by technology

[0008] Moreover, when the terminal performs transceiver switching, the TXNRX signal and the FCLK clock have a strict timing constraint relationship, and the TXNRX signal and the enable signal also have a strict timing constraint relationship, and data transmission has a fixed delay compared to the enable pulse signal

These strictly constrain the transceiver switching control and data transmission timing together, which is very complicated in timing control, and the switching time will be relatively slow, which is contrary to the goal of fast transceiver switching required by the TDD system

[0009] In addition, the JESD207-RBDP interface only supports TDD data transmission. For Frequency Division Duplex (FDD)-LTE terminals, it is required to realize the simultaneous transmission of the first data. Obviously, the timing of this interface cannot meet the requirements.

[0010] Therefore, the parallel interface standard in the prior art mainly has the following defects: the interface control is complex, and it can only support the data transmission of the TDD system but cannot support the data transmission of the FDD system

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