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Data sending method, data receiving processing method and related equipment

A data sending method and technology of sending equipment, applied in the field of communication, can solve problems such as low resource utilization rate, and achieve the effect of improving utilization rate

Pending Publication Date: 2022-03-08
VIVO MOBILE COMM CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The embodiment of the present application provides a data sending method, a data receiving and processing method, and related equipment, which can solve the problem of low resource utilization

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  • Data sending method, data receiving processing method and related equipment
  • Data sending method, data receiving processing method and related equipment
  • Data sending method, data receiving processing method and related equipment

Examples

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Embodiment 1

[0129] Embodiment 1: In the scenario of multi-user multiplexing, the functions of increasing the delay and Doppler resolution and improving the accuracy of channel estimation are achieved by using interleaved placement of different user data. Figure 6 The time-frequency domain resolutions of are:

[0130]

[0131] In the embodiment of the present application, the delay and Doppler resolution of channel estimation can be improved by sparsely mapping the transformed delayed Doppler domain QAM symbols on physical time-frequency domain resources. Suppose a user data with a dimension of l×k is sparsely mapped, and the symbol interval and subcarrier interval are aΔT and bΔf respectively, then the mapped data is distributed in a rectangular resource block. like Figure 9 The sparse map shown occupies resources as indicated by the dashed box.

[0132] If there is only single-user data, the size of the physical time-frequency resource block that needs to be allocated to the user ...

Embodiment 2

[0143] Embodiment 2: In the scenario of multi-user multiplexing, the functions of increasing the delay and Doppler resolution and improving the accuracy of channel estimation are achieved by using interleaved placement of different user data.

[0144] In the embodiment of the present application, the delay resolution of the channel estimation can be improved by sparsely mapping the transformed QAM symbols in the delayed Doppler domain in the frequency domain. The Doppler resolution can only be achieved by selecting a larger N. like Figure 10 shown, compared to Figure 6 , in order to obtain twice the Doppler resolution, the number of time-domain resources needs to be set to 2N. When the total number of resources remains unchanged, the frequency-domain resources become Therefore, to get 2x the delay resolution, it needs to be quadrupled. Thus, the time domain and frequency domain resolutions of this embodiment are respectively:

[0145]

[0146] See Figure 11 , Fig...

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Abstract

The invention discloses a data sending method, a data receiving and processing method and related equipment. The method comprises the following steps: converting a delay Doppler domain data set on a delay Doppler resource block into a time-frequency domain data set; mapping the time-frequency domain data set to a time-frequency resource block according to a preset resource mapping rule; the time-frequency domain data set on the time-frequency resource block is sent; wherein the resource mapping rule comprises sparse mapping. The embodiment of the invention improves the utilization rate of resources.

Description

technical field [0001] The present application belongs to the technical field of communication, and in particular relates to a data sending method, a data receiving and processing method and related equipment. Background technique [0002] In a complex electromagnetic wave transmission environment, due to the existence of a large number of scattering, reflection and refraction surfaces, the time when wireless signals arrive at the receiving antenna through different paths is different, that is, the multipath effect of transmission. When the symbols before and after the transmitted signal arrive at the same time through different paths, or in other words, when the later symbol arrives within the delay extension of the previous symbol, Inter Symbol Interference (ISI) occurs. Similarly, in the frequency domain, due to the Doppler effect caused by the relative speed of the transceiver end, each subcarrier where the signal is located will have different degrees of frequency offse...

Claims

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Application Information

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IPC IPC(8): H04W28/06H04W72/04
CPCH04W28/06H04W72/0446H04W72/0453H04L27/2639H04L27/26532H04L5/0005H04L5/0048
Inventor 袁璞刘昊潘学明
Owner VIVO MOBILE COMM CO LTD
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