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A method and device for signal recognition

A signal identification and channel technology, applied in the field of signal identification, can solve the problems of reducing the efficiency of RFID communication, repeated tag retransmission, etc., to achieve the effect of high channel capacity, high signal throughput, and improved efficiency

Active Publication Date: 2021-12-07
CHINA MOBILEHANGZHOUINFORMATION TECH CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
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Problems solved by technology

However, this method requires tags to retransmit data repeatedly, which will not only reduce the efficiency of the entire RFID communication

Method used

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  • A method and device for signal recognition
  • A method and device for signal recognition
  • A method and device for signal recognition

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Embodiment Construction

[0062] The invention provides a method and device for signal identification, which are used to effectively improve the efficiency of RFID communication when time slot collision occurs.

[0063] The technical solution in the embodiment of the present application is to solve the above-mentioned technical problems, and the general idea is as follows:

[0064] A method for signal identification is provided, including: a calling device sends a wake-up instruction to all called devices in the current batch; the calling device judges whether a first response instruction is received to obtain a first judgment result; wherein, the first The response command is the aliasing signal formed by all the response commands returned by all the called devices based on the received wake-up command; when the calling device determines that the first judgment result is yes, it uses the upper limit value of the channel and the serial interference algorithm from the first In a response command, identi...

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Abstract

The invention discloses a signal identification method and device, which are used for effectively improving the efficiency of RFID communication when time slot collision occurs. It includes: the calling device sends a wake-up instruction to all called devices in the current batch; the calling device judges whether a first response instruction is received to obtain a first judgment result; wherein, the first response instruction is the The aliasing signal formed by all the response commands returned by all the called devices based on the received wake-up command; when the calling device determines that the first judgment result is yes, it uses the channel upper limit value and the serial interference algorithm From the first response command, identify the response command sent by each called device in the current batch; wherein, the channel upper limit represents the maximum channel that the calling device can use when sending the command. number of channels.

Description

technical field [0001] The invention relates to the field of the Internet of Things, in particular to a method and device for signal identification. Background technique [0002] The Internet of Things coordinates various smart devices in the Internet of Things network through wireless information sharing and calculation, processing and analysis of data, and provides important information support for smart terminals and cloud computing. In the Internet of Things, the first and most important step of information exchange is to establish the self-organization of the network, that is, to complete the identification of terminal signals and the transmission of data. [0003] In order to save costs, in the communication system of the Internet of Things, electronic tag (Radio Frequency Identification, RFID) readers and electronic tags are usually used to establish an ad hoc network. However, there is such a form of interference in this network: multiple electronic tags will return...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W4/80H04W74/00H04W74/08
Inventor 贾松昊苏瑞文马金金袁静
Owner CHINA MOBILEHANGZHOUINFORMATION TECH CO LTD
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