PPDU signal generating device based on 802.11 be protocol

Abstract

The invention discloses a PPDU signal generation device based on an 802.11 be protocol, and belongs to the technical field of signal generation. The device comprises nine units, namely an L-STF generation unit, an L-LTF generation unit, an L-SIG generation unit, an RL-SIG generation unit, a U-SIG generation unit, an EHT-SIG generation unit, an EHT-STF generation unit, an EHT-LTF generation unit and a DATA generation unit; the WLAN EHT TB PPDU signal is generated through the cooperation of each unit, and the generation process comprises the following steps: generating an L-STF and an L-LTF; configuring the number of OFDMA symbols of the DATA part, generating an L-SIG time domain waveform, and generating an RL-SIG at the same time; configuring a U-SIG bit sequence, and generating a U-SIG unit waveform; after a bit sequence is generated, EHT-SIG is generated; generating a fixed sequence EHT-STF (Enhanced Heterocyte Transform) and a fixed sequence EHT-LTF; determining the length of an original bit, and generating an OFDMA time domain signal; and synthesizing the signals in a time domain to obtain an EHT TB PPDU signal. The device provides high-quality waveform guarantee for terminal sensitivity testing.

Description

technical field [0001] The invention belongs to the technical field of signal generation, and in particular relates to a PPDU signal generation device based on the 802.11be protocol. Background technique [0002] IEEE802.11be is an extremely high throughput network (Extremely High Throughput-EHT) that has emerged in the past two years. It has five main features, namely Single-band operation (single-channel operation optimization), Multi-bandoperation (multi-channel operation optimization), Spatial multiplexing (spatial multiplexing optimization), Multi-APcoordination (multi-AP cooperative optimization) and Link adaptation (link adaptation mechanism). [0003] The 802.11be standard introduces several significant changes at the physical layer. The maximum data rate of 802.11be is 30Gb / s, which is 4 times higher than that of 802.11ax. The frequency range is from 1GHz to 7.250GHz, including 2.4GHz, 5GHz and the new 6GHz unlicensed frequency band, and supports 320M bandwidth and...

AI Technical Summary

Problems solved by technology

The maximum data rate of 802.11be is 30Gb / s, which is 4 times higher than that of 802.11ax. The frequency range is from 1GHz to 7.250GHz, including 2.4GHz, 5GHz and the new 6GHz unlicensed frequency band, and supports 320M bandwidth and 16 Stream MIMO technology, while using 4096QAM high-order modulation, these have brought great challenges to the RF test of 802.11be equipment, and at the same time put forward higher performance requirements for the instrument

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