Transmission and reception method and device in wireless communication system

Abstract

Embodiments of the present invention relates to a method of transmission, comprising: receiving transmitted data; The received transmission data is divided into K data streams, where K > 1, and K is a positive integer; Each of the data streams is fed into its associated parallel processing path to obtain K modulation packets j, j = 1,...,K from the parallel processing paths, wherein each processing path comprises processing steps: the data stream is segmented; The first error detection code is used to encode the segmented data stream, and the fragmented data stream after modulation error detection encoding, so as to obtain a modulation packet comprising a plurality of modulation symbols j; The K modulation packets are multiplexed so that at least one modulation symbol of each modulation packet j is placed in close proximity to each other in time and / or frequency; And transmits the multiplexed modulation packet on the radio channel of the wireless communication system. Further, embodiments of the present invention relates to a receiving method, a transmitting device, a receiving device.

Description

technical field [0001] Embodiments of the present invention relate to a sending method and a corresponding receiving method in a wireless communication system. Further, the embodiments of the present invention also relate to a sending device, a receiving device, a computer program and computer program products thereof. Background technique [0002] In a wireless system, channels between network nodes (for example, terminals, base stations, access nodes, remote radio heads (Remote RadioHead), user equipment, etc.) vary in time and frequency. The receivers on the receiving nodes are arranged in such a way as to be able to track changes in the wireless channel in the time-frequency grid over which the data is transmitted. Most of the time, the structure of the receiver is optimized by assuming either perfect channel state information (CSI) (eg, channel gain) at the receiver side or a sufficiently high-fidelity CSI estimate. [0003] This assumption leads to some important con...

AI Technical Summary

Problems solved by technology

[0007] Pilot-aided communication, despite its simple implementation, suffers from two major problems: loss of spectral efficiency due to pilot symbol transmission, and propagation of channel estimation errors to the receiver's decoder

This scheme does not consume any physical resources but increases the complexity of decoding due to the need for additional outer loop iterations

More importantly, this scheme suffers from error propagation because, since the decoding is not yet complete, the feedback signal from the decoder is still noisy

Finally, this scheme is unlikely to be feasible for all types of decoders, such as those that process noisy packets received at a time and are not configured for iterative estimation, or those designed to work with other metrics

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