Method and apparatus for transmitting frame data between near end device and far end device

Abstract

The embodiment of the invention provides a method and apparatus for transmitting frame data between a near end device and a far end device. The method comprises the following steps: generating a basic frame with a self-defined frame format, wherein a physical layer PHY conversion chip is built in the near end device, the basic frame comprises a first number of super groups, the super group comprises a second number of basic groups, and the basic group comprises media access control (MAC) frame structure data and a frame gap; matching the time length of the MAC frame structure data and the frame gap with the output time sequence of the physical layer PHY conversion chip; and converting the basic frame into an optical fiber signal by the physical layer PHY conversion chip, and sending the optical fiber signal to the far end device. In the method and apparatus provided by the embodiment of the invention, the frame structure is self defined, each basic frame comprises a plurality of super groups, and each super group comprises a plurality of basic groups; and each basic group is composed of the MAC frame structure data and the frame gap. The time length of the MAC frame structure data and the frame gap is matched with the output time sequence of the physical layer PHY conversion chip, so that the bottom layer PHY conversion chip can normally receive and send data.

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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