Physical layer test system and method based on ARM (advanced RISC (reduced instruction set computer) machine) and DSP (digital signal processing) multi-core structure

Abstract

The invention relates to a test technology for a wireless communication system and particularly relates to a physical layer test system and method based on an ARM (advanced RISC (reduced instruction set computer) machine) and DSP (digital signal processing) multi-core structure. The system comprises a control device, a signal source, a vector signal analyzer and a tested terminal. The method comprises a plurality of steps. According to the physical layer test system and method disclosed by the invention, codes of a physical layer in the field of wireless communication can be tested alone under the situation that upper-layer protocol codes are absent, development and test time can be shorted, test cost can be reduced and the automatic test of the codes of the physical layer can be conveniently and quickly realized.

Description

technical field [0001] The invention relates to a wireless communication system test technology, in particular to a physical layer test system and method based on ARM and DSP multi-core structures. Background technique [0002] A wireless terminal (or user equipment UE) can be divided into a physical layer (PHY), a data link layer and a radio resource control layer (RRC) from the protocol, and the data link layer includes a media access control layer (MAC) and Radio Link Control (RLC layer). The physical layer is located at the bottom of the protocol model, and mainly completes the process of channel encoding and decoding, physical channel mapping and demapping, and modulation and demodulation; the physical layer obtains interlayer primitives from the MAC and sends them to or from the peer entity and other entities receive data and signaling. The MAC layer is located above the physical layer, and mainly completes processes such as data framing, error detection and retransm...

AI Technical Summary

Problems solved by technology

The former can only test a certain module, and cannot verify the reliability and real-time performance of the entire system; while the latter requires the integration of high-level protocol programs and mature network equipment, which often cannot meet the conditions in the initial stage of program development; During this period, regression testing on the physical layer needs to be performed separately. The current testing methods rely heavily on protocol codes, are costly and labor-intensive, and cannot achieve large-scale automated regression testing.

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