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Data transmission method and communication device

A data transmission method and data symbol technology, applied in the field of data transmission methods and communication equipment, can solve the problem that CP definition cannot be flexible to meet the needs of various scenarios, and achieve good frequency domain diversity effect and good delay deviation Effect

Active Publication Date: 2020-04-14
HUAWEI TECH CO LTD
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Problems solved by technology

[0006] Embodiments of the present invention provide a data transmission method and communication equipment to solve the problem that the definition of CP in the prior art cannot flexibly meet the needs of various scenarios in 5G

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  • Data transmission method and communication device
  • Data transmission method and communication device
  • Data transmission method and communication device

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Embodiment Construction

[0101] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Apparently, the described embodiments are only some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0102] The network architecture and business scenarios described in the embodiments of the present invention are to more clearly illustrate the technical solutions of the embodiments of the present invention, and do not constitute limitations on the technical solutions provided by the embodiments of the present invention. The evolution of the architecture and the emergence of new business scenarios, the technical solutions provided by the embodiments of the present invention are also ap...

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Abstract

An embodiment of the present invention relates to a data transmission method and a communication device, the method comprising: performing an interpolation operation on a first signal sequence to obtain a second signal sequence, the length of the second signal sequence being greater than the length of the first signal sequence ; Mapping the second signal sequence to a subcarrier to obtain a second signal sequence on the subcarrier; performing inverse fast Fourier transform IFFT on the second signal sequence on the subcarrier to obtain a time domain signal; transmitting the the time-domain signal. Embodiments of the present invention can better combat delay deviation.

Description

technical field [0001] The present invention relates to the technical field of communication, in particular to a data transmission method and communication equipment. Background technique [0002] In the LTE system and the 5G standard currently being discussed, the waveform based on Orthogonal Frequency Division Multiplexing (OFDM) is recognized as the baseline waveform. Output (Multiple Input Multiple Output, MIMO) technology for flexible multi-layer data space multiplexing and the like. These advantages come from the insertion of a cyclic prefix (CyclicPrefix, CP) between OFDM symbols, which ensures the ideal self-circulation characteristics of each symbol, thereby ensuring that no inter-symbol interference is introduced under the premise that the CP can cover the maximum delay extension of the channel (Inter Symbol Interference, ISI). [0003] However, in an actual network, the distance between the user and the base station changes all the time, and for special cases su...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L27/26
CPCH04L27/2675H04L27/2678H04L27/26H04L27/2636H04L27/2605H04L27/2647H04L27/26526H04L25/0202H04L27/2669
Inventor 董朋朋丁梦颖胡远洲王宗杰
Owner HUAWEI TECH CO LTD
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