Bluetooth data sending method and system and Bluetooth transceiver

A Bluetooth data and transmission method technology, applied in digital transmission systems, transmission systems, near-field transmission systems, etc., can solve the problems of poor anti-interference, unable to provide longer transmission distance, etc., to improve communication distance, improve communication quality, The effect of reducing the number of data retransmissions

Active Publication Date: 2017-06-13
BUILDWIN SEMICON SHENZHEN CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the embodiment of the present invention is to provide a Bluetooth data transmission method, which aims to solve the problem that the existing Bluetooth data transmission adopts the retransmission mechanism to resist interference, the anti-interference is poor, and the problem of being unable to provide a longer transmission distance

Method used

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  • Bluetooth data sending method and system and Bluetooth transceiver
  • Bluetooth data sending method and system and Bluetooth transceiver
  • Bluetooth data sending method and system and Bluetooth transceiver

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Embodiment 1 of the present invention provides a Bluetooth data transmission method, such as figure 1 shown, including the following steps:

[0032] S11: Using the linear block code (n, k) encoding method to encode the Bluetooth data source to be sent to obtain encoded data, modulate the encoded data, and send it to the Bluetooth network.

[0033] The linear block code (n, k) encoding method and the corresponding linear block code (n, k) decoding method belong to a forward error correction encoding / decoding method, which can detect A limited number of wrong codes are corrected. In the linear block code (n, k) coding method, the Bluetooth data source to be sent is divided into several groups as information codes, and then a number of supervisory symbols are added to each group of codes to obtain several code groups. In the code group, supervision A linear transformation relationship is satisfied between the code element and the information code. This encoding is calle...

Embodiment 2

[0054] Embodiment 2 of the present invention provides a Bluetooth data sending method, such as Figure 4 shown, including the following steps:

[0055] S21: Using a linear block code (n, k) encoding method to encode the Bluetooth data source to be sent to obtain encoded data.

[0056] In the second embodiment, the linear block code (n, k) encoding method can adopt the BCH (n, k) code encoding method or other linear block code (n, k) encoding methods, and the BCH (n, k) code encoding method BCH (7, 4) code encoding method, BCH (15, 5) code encoding method or others can be selected.

[0057] In one case, the specific steps of step S21 are as described in step S111 to step S113 in the first embodiment, and will not be repeated here. In another case, the specific steps of step S21 are as described in step S114 to step S117 in the first embodiment, and will not be repeated here.

[0058] S22: After modulating the encoded data, send it to the Bluetooth network.

Embodiment 3

[0060] Embodiment 3 of the present invention provides a Bluetooth data receiving method, such as Figure 5 shown, including the following steps:

[0061] S31: Obtain coded data from the Bluetooth network, and demodulate the coded data.

[0062] S32: Using the linear block code (n, k) decoding method corresponding to the linear block code (n, k) encoding method of the sending end, to decode the demodulated data, and realize error detection and error correction.

[0063] For example, if the linear block code (n, k) encoding method adopts the BCH (n, k) code encoding method, then the corresponding linear block code (n, k) decoding method adopts the BCH (n, k) code decoding method. After decoding, the error detection and error correction of the information code can be realized according to the supervision symbol.

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Abstract

The invention belongs to the technical field of Bluetooth communication, and provides a Bluetooth data sending method and system and a Bluetooth transceiver. The method and the system adopt a linear grouping encoding / decoding method as an error correction mechanism for Bluetooth data transmission, and the linear grouping encoding / decoding method belongs to a forward error correction encoding / decoding method and can detect out a limited number of error codes and correct the error codes in a case that retransmission does not need to be carried out, so that times of data retransmission are reduced, communication quality is promoted, and relative to an existing retransmission mechanism, the method and the system improve the anti-interference capacity and increase a communication distance.

Description

technical field [0001] The invention belongs to the technical field of bluetooth communication, and in particular relates to a bluetooth data sending method, system and bluetooth transceiver. Background technique [0002] It is well known that Bluetooth communication uses the 2.4GHz frequency band to achieve data transmission, and the 2.4GHz frequency band is the common ISM frequency band of all countries. Wireless LANs, WiFi, ZigBee and other wireless networks all work in this frequency band. Therefore, Bluetooth data is vulnerable to interference during transmission. Interference, even the normal use of microwave ovens will have a certain impact on the 2.4GHz frequency band. [0003] In the prior art, bluetooth communication adopts a retransmission mechanism to resist interference. Under this mechanism, if the Bluetooth data is disturbed during the transmission process and causes data errors, the receiver will request the sender to retransmit the erroneous data message to...

Claims

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Application Information

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IPC IPC(8): H04B5/00H04L1/00
CPCH04L1/004H04L1/0057H04L1/0061H04B5/72
Inventor 符运河
Owner BUILDWIN SEMICON SHENZHEN CO LTD
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