A timing information writing and reading control method and device

Abstract

The present invention relates to the field of communications, in particular to a method and device for controlling timing information writing and reading. Before writing data, the method first sorts the data in the time-to-be-written FIFO in ascending order, and the data to be written The data in the data FIFO is also changed in corresponding order, and the time value is written first; or, after the data is written, the write address pointer register WADDR is modified in real time; the FIFO of the device has a read address pointer register and a write address pointer register , for modifying the read-write address of the data FIFO and the time FIFO, wherein the time FIFO and the data FIFO share these two registers; the present invention can complete the task of timing information write-read control under the timing precision, and can according to the execution situation of the FIFO, Modify the read and write pointers of FIFO to realize the jump control of FIFO data; and further support the operation of sending data immediately to meet higher real-time requirements.

Description

technical field [0001] The invention relates to the communication field, in particular to a timing information writing and reading control method and device. Background technique [0002] The current third-generation mobile communication system is becoming more and more mature, and the fourth-generation mobile communication technology has also begun to develop. In the third-generation and fourth-generation mobile communications, the timing relationship between the terminal and the network is becoming more and more stringent, and the timing accuracy of the system is also getting higher and higher. The baseband control timing radio frequency devices (including: radio frequency chip , Power amplifier devices, antenna switches, duplex devices, analog baseband chips, etc.) also put forward more stringent requirements. The timing information writing and reading control device in the mobile terminal is usually a data first-in-first-out (referred to as FIFO) memory for storing comm...

AI Technical Summary

Problems solved by technology

Although the hardware structure of this device is simple, there are 2 obvious deficiencies: 1), when the value written into the previous time FIFO is greater than the value written into the later time FIFO, the subsequent timing information must wait for the previous timing information to be executed At the same time, after the previous timing information is executed, the frame count value is greater than the next timing information, and the latter timing information must wait until the timing of the next frame arrives before executing, that is, the timing of subsequent writing The information cannot be executed in a skip sequence; 2), the function of sending data immediately cannot be provided. In the third-generation and fourth-generation mobile communications, the timing requirements for radio frequency devices are getting higher and higher, and certain control information is required without waiting for timing information Immediate execution to improve the real-time performance of timing information writing and reading control, but the existing technology cannot provide immediate control, and all controls must be strictly executed in accordance with the writing order of the time FIFO

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