Switching device based on reordering algorithm

Abstract

The invention discloses a switching device based on a reordering algorithm. According to the device, the switching design is simplified, the port number is increased and no trouble is brought to trailing ends. The switching device of one embodiment of the invention comprises: a processor, an input buffer, an output buffer and a Banyan switching framework; the processor is used for converting an original switching allocation list into an uncongested switching allocation list and an ordering allocation list by means of a preset reordering algorithm; the input buffer is used for saving first cycle data from an input port; the processor is also used for performing data exchange on the first complete cycle data saved by the input buffer through the uncongested switching allocation list to obtain second complete cycle data; the Banyan switching framework is used for performing synchronized data exchange on the second complete cycle data; the output buffer is used for saving the second complete cycle data after synchronized data exchange; the processor is also used for adjusting the data order of the second cycle data after synchronized data exchange and saved by the output buffer by means of the ordering allocation list to obtain third cycle data.

Description

technical field [0001] The invention relates to the technical field of communication, in particular to a switching device based on a reordering algorithm. Background technique [0002] The public open wireless interface (English full name: Common Public Radio Interface, English abbreviation: CPRI) specification is for radio frequency module control (English full name: Radio Equipment Control, English abbreviation: REC) unit and radio frequency module (English full name: Radio Equipment, English abbreviation :RE), which is an internal interface and used in the physical layer and data link layer. In order to facilitate the understanding of CPRI, CPRI can be abstracted as a periodic data channel, such as figure 1 as shown, figure 1 It is a data channel with a CPRI period of 6, that is, each CPRI period has 6 data. In practical applications, the CPRI period of 10G is 128, and the CPRI period of 20G is 320. Similar to Ethernet switching, CPRI switching is an important part of ...

AI Technical Summary

Problems solved by technology

[0004] Existing schemes exchange directly according to the exchange relationship table. Since the exchange relationship table is arbitrary, it is necessary to consider the situation that one input port distributes data to all output ports at the same time. In this case, the existing scheme CPRI switching architecture The design is complex, the number of ports is limited, and the backend is not feasible

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