Communication physical frame control information sending method and system and communication physical frame control information receiving method and system

Abstract

The invention discloses a sending method and a receiving method of communication physical frame control information. Wherein the physical frame control information adopts a two-stage structure; the control information structure is divided into an SIG domain and a PHR domain, through the control information structure, proper control information modulation coding and / or diversity interleaving and other sending parameters can be adaptively selected according to indexes such as communication quality and communication success rate, and the control information is correspondingly and efficiently demodulated and received at a receiving end; when the signal transmission quality of two communication parties is good; the sending end can select a modulation and coding mode with higher spectral efficiency; on the premise of ensuring that the receiving end can correctly demodulate the control information; time-frequency resources occupied by control information in a physical frame can be greatly reduced, the defects that in the prior art, channel quality cannot be adaptively adapted, the physical frame length is fixed, system resource redundancy cannot be adaptively reduced and the like are overcome, and the highest utilization efficiency of the time-frequency resources is achieved on the premise that communication of the whole control information segment is successful.

Description

technical field [0001] The present invention relates to the field of communication technologies, and more specifically, to a method and system for sending communication physical frame control information, and a method and system for receiving them. Background technique [0002] All communication systems need to allocate a small amount of communication resources to transmit control information when transmitting physical layer data frames, which are used to indicate information such as resource allocation and transmission parameters of data loads. Different communication systems, starting from different system design requirements, will adopt different methods for sending physical frame control information. [0003] In digital broadcast communication systems such as DVB-T2, ATSC3.0 and DTMB, part of the physical frame control information is sent in the synchronization signal (preamble synchronization signal or pilot signal), which makes the reception of synchronization detectio...

AI Technical Summary

Problems solved by technology

[0006] The present invention proposes a method and system for sending communication physical frame control information, a method and system for receiving it, so as to solve the problem of how to efficiently transmit physical frame information

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