Method and device for frame data transmission between near-end equipment and remote equipment

Abstract

The embodiment of the present application provides a method for frame data transmission between a near-end device and a remote device, including: the near-end device generates a basic frame in a custom frame format; a physical layer PHY conversion chip is built in the near-end device The basic frame includes: the supergroup of the first number; the supergroup includes: the basic group of the second number; the basic group includes: medium access control MAC frame structure data and frame gap; matching the MAC frame The structural data and the duration of the frame gap and the output timing of the physical layer PHY conversion chip; through the physical layer PHY conversion chip, the basic frame is converted into an optical fiber signal and sent to the remote device. In the embodiment of the present application, the frame structure is customized, and each basic frame includes multiple supergroups, and each supergroup includes multiple basic groups; each basic group consists of MAC frame structure data and frame gaps. The duration of the MAC frame structure data and the frame gap matches the output timing of the underlying PHY conversion chip, so that the underlying PHY conversion chip can send and receive data normally.

Description

technical field [0001] The present application relates to the field of communication technologies, and in particular to a method for transmitting frame data between a near-end device and a remote device and a device for transmitting frame data between a near-end device and a remote device. Background technique [0002] With the development of mobile communication technology, high-speed transmission of large-capacity data has become an inevitable trend. We need continuous high-speed transmission of data such as IQ data and physical layer control words, which also puts forward higher requirements for the transmission protocol. [0003] The existing IR (Interface between the RRU and the BBU) protocol and the CPRI CPRI (Common Public Radio Interface, common public radio interface) protocol are relatively mature and stable communication interface protocols, but the IR protocol and CPRI protocol are in the transmission of message data. During the process, the K code mark will be ...

AI Technical Summary

Problems solved by technology

[0003] The existing IR (Interface between the RRU and the BBU) protocol and the CPRI CPRI (Common Public Radio Interface, common public radio interface) protocol are relatively mature and stable communication interface protocols, but the IR protocol and CPRI protocol are in the transmission of message data. During the process, the K code mark will be added to the data, so that the data cannot conform to the timing sequence of the PHY (Physical Layer, physical layer) conversion chip of the network port interface, so data transmission cannot be performed through the network cable

At the same time, the IR and CPRI protocols do not transmit IQ data in every continuous basic group, which will cause the IQ data transmission to be unstable, increase the possibility of packet loss, cause design difficulties, and cause difficulties in application layer processing

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