Transmission and receiving method in a wireless communication system

Abstract

The present invention relates to a transmission method comprising: receiving transmission data; dividing the received transmission data into K>1 number of data streams, where K is a positive integer; feeding each data stream into its associated parallel processing path so as to obtain K number of modulated data packets j = 1,..., K from the parallel processing paths, wherein each processing path involves the processing steps of: segmenting the data stream, encoding the segmented data stream with a first error detection code, and modulating the error detection encoded segmented data stream so as to obtain a modulated data packet j comprising a plurality of modulated symbols; multiplexing the K number of modulated data packets so that at least one modulated symbol of each modulated data packet j are placed in proximity to each other in time and / or frequency; and transmitting the multiplexed modulated data packets over a radio channel of the wireless communication system. Furthermore, the invention also relates to a receiving method, a transmitter device, a receive device, a computer program, and a computer program product thereof.

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 (RemoteRadioHead), 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 cons...

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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