ZigBee-Bluetooth communication implementation method

Abstract

The invention relates to the technical field of digital information transmission, and discloses a ZigBee-Bluetooth communication implementation method, which comprises the following steps of: step 1, judging sampling clock skew and estimating the sampling clock skew; step 2, sampling clock offset compensation; step 3, matching the lead code with the access address; step 4, processing received data; and step 5, processing the effective load information by the Bluetooth upper layer protocol. On the premise that communication between Bluetooth is compatible, cross-protocol communication of the Bluetooth receiver to ZigBee-Bluetooth is achieved, and compatibility of a Bluetooth upper-layer protocol and a fault-tolerant mechanism of cross-protocol communication are achieved through mechanisms such as codebook mapping and the like; reasonable sampling clock skew compensation is carried out according to sampling clock skew judgment and sampling clock skew estimation results, so that the modification degree of hardware of a receiving end is reduced; and due to the certainty of the sampling offset of the receiver, the calculation cost of the codebook mapping mechanism of the Bluetooth receiver is one fourth of that of cross decoding, and the receiving calculation cost and the matching cost of the Bluetooth receiver are greatly reduced.

Description

technical field [0001] The invention relates to the technical field of digital information transmission, in particular to a method for realizing ZigBee-Bluetooth communication. Background technique [0002] The development of the Internet of Things era has brought great convenience to modern life, and also promoted the rapid development of wireless technologies represented by Wi-Fi, ZigBee and Bluetooth, which are adapted to different system performance and environmental requirements (such as Communication distance, device power consumption, throughput, etc.). However, the use of wireless technology depends on the allocation of spectrum resources. Commercial wireless technologies represented by IEEE802.11 / Wi-Fi, IEEE802.15.4 / ZigBee, Bluetooth, etc. all work in the unlicensed ISM (Industrial Scientific Medical Band) 2.4 GHz frequency band, communication channels of different technologies have a large overlap in frequency (see figure 1 ). Since protocols such as Wi-Fi, ZigB...

AI Technical Summary

Problems solved by technology

At the same time, due to the uncertainty of the mapping matrix, the original function of the receiver's preamble: configure the automatic gain through the preamble to determine the frequency used by "0" and "1". The preamble cannot be simulated deterministically, so it cannot be realized

When the sampling offset is small, the phase change between the two points of the sampling judgment is reduced, which will lead to a decrease in th...

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