Realization method of LTE downlink system resource mapping

Abstract

The invention provides a realization method of a resource mapping in a long term evolution (LTE) system, and realizes the resource mapping of an LTE downlink system. the invention, a set of control register is designed and is used for controlling a reception of a channel data and a generation of a mapping address, and a data generation and an address generation of a primary synchronization signal, a secondary synchronization signal and a reference signal. various signals and mapping addresses are generated and are sent to an arbitration device. Various signals are written into a subframe buffer based on a presupposed priority to map according to rules, and are read out according to an order from a small one to a large one. The read out data are grouped into a set based on each symbol. After the address conversion, an IFFT transformation is conducted on the read out data. Finally, the read out data are sent to a radio frequency section after a buffer based on an FIFO queue. Various resource mappings are conducted via a flexible configuration towards the register so that the realization method is high in configurability and can meet with the requirement of the high speed processing of the LTE system.

Description

technical field [0001] The invention relates to the technical field of wireless communication, and relates to a method for realizing resource mapping in an LTE wireless communication system, which is suitable for resource mapping in an LTE downlink system. The method is easy to expand and flexible in configuration. Background technique [0002] LTE (Long Term Evolution, Long Term Evolution) wireless communication system downlink adopts OFDMA (Orthogonal Frequency Division Multiple Access, Orthogonal Frequency Division Multiple Access), which can flexibly perform resource allocation and scheduling in the frequency domain, and the resources involved Including PDCCH (Physical Downlink Control Channel, Physical Downlink Control Channel) signal, PBCH (Physical Broadcast Channel, Physical Broadcast Channel) signal, and PDSCH (Physical Downlink Shared Channel, Physical Downlink Shared Channel) signal, PSCH (Primary Synchronization Channel, primary synchronization Channel) signal, S...

AI Technical Summary

Problems solved by technology

[0003] The existing resource mapping implementation methods generally have defects such as complex hardware structure and low data transmission speed, and are not configurable, and cannot meet the requirements of real-time resource mapping adjustment in LTE systems. Therefore, the present invention provides a configurable Resource mapping implementation method, using the designed control register group to flexibly control different resource mapping

Images