Wireless communication frame structure signal processing method

Abstract

The invention discloses a wireless communication frame structure signal processing method, and the frame structure is an uplink frame which consists of a pilot code element sequence, a synchronous code element sequence, and a data code element sequence. The method comprises steps of firstly subjecting input data to channel coding to obtain coding sequences, interleaving coded sequences to obtain an interleaved coding sequence; punching the interweaved sequence to obtain a punched sequence; performing XOR on the punched sequence and the scrambled code sequence to obtain a scrambled sequence, mapping the scrambled sequence into a data code element sequence, combining the data code element sequence, a pilot frequency code element sequence and a synchronous code element sequence according to the frame structure to form an uplink frame, and performing code element upsampling on the code element sequence of the uplink frame to obtain an uplink signal to be sent. The interleaving method designed by the invention can realize better random degree and uniformity degree, a group of code elements at the head or the tail are simply removed after interleaving, the length of a data frame is shortened, and the utilization efficiency of channel resources is improved.

Description

technical field [0001] The invention belongs to the field of wireless communication, and relates to a signal processing method of a wireless communication frame structure, in particular to a frame structure and a signal processing method of a wireless communication uplink communication of multi-terminal transmission and base station multi-antenna reception and a method for processing the signal in the transmitter Holes and blocks interweave method. Background technique [0002] Multi-terminal transmission and base station multi-antenna reception are a typical MIMO communication system, where MIMO refers to a multiple-input multiple-output antenna system. For this kind of communication system, a key is random access, which means that the terminal randomly sends uplink data packets to the base station. In order to make full use of the spatial resolution capability of the MIMO system and successfully receive uplink signals from multiple terminals simultaneously sent during the...

AI Technical Summary

Problems solved by technology

[0004] The simplest deterministic interleaving scheme is block interleaving, which is commonly referred to as a simple row-write-column-read method. Although it is simple to implement, the degree of randomness is not uniform enough, and the decoding effect is poor.

The usual punching method is to calculate the punching interval according to the data length, and the punching interval is fixed or tends to be uniformly set. Each different data length corresponds to a different punching interval, so the usual punching method is more complicated to implement.

Images