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Superposition pilot communication method and system based on space information network

A space information network and superimposed signal technology, applied in the field of Internet of Things communication, can solve the problems of low success rate of data information access, low accuracy of channel state information, unstable value of channel state information, etc., to improve the success rate of access , improve throughput and improve accuracy

Active Publication Date: 2022-04-15
HARBIN INST OF TECH SHENZHEN GRADUATE SCHOOL +1
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Problems solved by technology

[0003] However, the channel state information calculated by traditional methods is prone to numerical instability, resulting in low accuracy of channel state information, resulting in a low success rate of data information access

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  • Superposition pilot communication method and system based on space information network
  • Superposition pilot communication method and system based on space information network
  • Superposition pilot communication method and system based on space information network

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Embodiment Construction

[0056] In order to make the purpose, technical solution and advantages of the present application clearer, the present application will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present application, and are not intended to limit the present application.

[0057] The superposition pilot communication method based on the spatial information network provided by this application can be applied to such as figure 1 shown in the application environment. Wherein, a plurality of terminals 102 communicate with space communication satellites 104 through a network. During the uplink communication process of the space information network, multiple terminals 102 send superimposed signals to the space communication satellite 104 . The space communication satellite 104 identifies a superimposed signal satisfying a preset condition among...

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Abstract

The present application relates to a superposition pilot communication method and system based on a spatial information network. The method includes: receiving a superimposed signal sent by a terminal in the uplink communication process of a space information network; identifying a superimposed signal satisfying a preset condition in the superimposed signal as a target signal; performing iterative prediction on the target signal to obtain a target channel state information; filtering the target signal according to the target channel state information and the pilot set to obtain a data sequence in the target signal; decoding the data sequence to obtain target data information. Adopting the method can improve the accuracy of the channel state information.

Description

technical field [0001] The present application relates to the technical field of Internet of Things communication, in particular to a superimposed pilot communication method and system based on a spatial information network, a space communication satellite and a storage medium. Background technique [0002] Spatial Information Networks (SIN for short) refers to a backbone communication network composed of multiple satellites and satellite constellations operating in orbit, which can provide low-cost broadband access services with global coverage, and can be applied to large-scale machine communications (massive Machine Type Communications, referred to as mMTC), environmental and disaster monitoring, resource exploration, topographic mapping, communication broadcasting, and scientific exploration and other fields. In the uplink large-scale communication process of the space information network, the traditional method is to calculate the channel state information through the l...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L5/00H04B7/185
CPCH04L5/0048H04B7/1851
Inventor 焦健周俊良张可吴绍华张钦宇
Owner HARBIN INST OF TECH SHENZHEN GRADUATE SCHOOL
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