MTC transmission method that supports mixed authorized-unlicensed frequency bands

Abstract

The invention discloses a machine type communication MTC transmission method that supports mixed authorized-unauthorized frequency bands, which mainly solves the problem of network congestion caused by a large number of users accessing authorized frequency bands in the prior art, and the cluster head users have large power consumption and short survival time. short question. The specific steps of the present invention are as follows: (1) the base station sorts the users; (2) the base station selects an orthogonal-multiplexing mode and allocates channels for the users; (3) the base station selects the multiplexing-unauthorized mode and allocates channels for the users; (4) Upload user data. The invention can increase the number of access users, improve frequency utilization, reduce user power consumption, and increase user survival time.

Description

technical field [0001] The invention belongs to the technical field of communication, and further relates to a machine type communication MTC (Machine Type Communication) transmission method in the technical field of machine type communication that supports mixed authorized-unauthorized frequency bands. The invention can be used for uploading user data in machine type communication. Background technique [0002] Machine-type communication (MTC) is a communication technology based on intelligent machine-type terminals that provides customers with information solutions such as data collection, data measurement, and monitoring and alarming through various communication methods. Driven by technological change and application requirements, infrared transmission Sensing, radio frequency identification, remote control, smart home, location tracking and other application forms have been widely used in people's daily life, which not only brings many conveniences to the lives of ordin...

AI Technical Summary

Problems solved by technology

This method takes into account the characteristics of user data, and adopts a hierarchical division method to alleviate the congestion problem when user data is uploaded at the same time. However, this method still has the disadvantage that a large number of access users in this method will occupy scarce authorized frequency band resources. , resulting in network congestion

This method uses clustering to increase the number of user access, and reduces redundancy through data compression, which effectively solves the congestion problem. However, this method still has the disadvantage that the power consumption of cluster head users in this method is large, and the survival time short

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