Frame structure capable of being matched with different carrier bandwidth and application thereof

Abstract

The invention relates to a frame structure capable of being matched with different carrier bandwidth and a communication method based on the frame structure. The frame structure capable of being matched with different carrier bandwidth comprises short time slots and long time slots with the same quantity, wherein one short time slot and one long time slot form a time slot group; and the frame structure comprises more than one time slot groups. The frame structure has the following benefits: one frame comprises a plurality of time slots and the time slots can change along with different carrier bandwidths, so the utilization ratio and the using efficiency are greatly increased. In the frame structure, the short time slots and the long time slots are used in pairs, so more communication establishing methods with excellent effects can be realized on the basis of the structure. At the tail part of each long time slot, protective time slots GP with the length of TGP are reserved and used for radio frequency for communication equipment to receive / transmit, convert and counteract space propagation delay, so that time slot interference caused by non-synchronous or multipath delay is reduced. The time slot head is positioned according to different pilot frequency phase positions of the time slot groups, so the frame structure is simple to operate and high in efficiency.

Description

technical field [0001] The present invention relates to a frame structure, more specifically, to a frame structure capable of matching different carrier bandwidths, and a communication method based on the frame structure. Background technique [0002] At present, various wireless communication technologies are developing rapidly, but frequency band resources are becoming increasingly tight. Traditional intercom communication and trunking communication adopt analog system, a pair of spectrum can only carry one voice service, the transmission efficiency is low, and the confidentiality is poor. In order to overcome the shortcomings of traditional analog intercom system, many countries in Europe and the United States have proposed various narrowband The digital communication scheme gradually replaces the original analog intercom system. [0003] In the process of establishing a link between devices for voice or data communication, the link needs to be established through signal...

AI Technical Summary

Problems solved by technology

[0006] For the above technology, a frame contains two time slots, can only support 2 channels at most, and the user capacity is relatively small. In addition, to embed the synchronization sequence and control signaling into the service time slot through time division multiplexing, it is necessary to control The signaling is segmented and concatenated, the signaling transmission method is complex, and the signaling delay is relatively large

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