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A bypass network steering method in an open wireless channel

An open wireless and channel technology, applied in wireless communication, radio transmission system, transmission path sub-channel allocation, etc., can solve problems such as incompatibility, reduce complexity, high-quality synchronization and timing information, improve transmission efficiency and reliability sexual effect

Active Publication Date: 2020-11-06
PEKING UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, various types of star networks, tree networks or mesh networks under the existing technical system have various technical systems such as TDM / FDM, FDMA, TDMA, and CDMA, and various constitutions are incompatible with each other.

Method used

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  • A bypass network steering method in an open wireless channel
  • A bypass network steering method in an open wireless channel
  • A bypass network steering method in an open wireless channel

Examples

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Embodiment Construction

[0019] This bypass network guidance method in an open wireless channel,

[0020] Select a terminal station in the open wireless channel as a reference, and send a pilot signal. The pilot signal occupies all or part of the frequency band of the open wireless channel for transmission. The pilot signal occupies all or part of the frequency band in the open wireless channel. Pilot frequency band, the ratio of the power of the pilot signal to the total power of the pilot frequency band is 0.1‰-5%. When the pilot signal is sent, it is spread by the spread code, and the noise-like low power spectrum signal mode is superimposed on the pilot On the communication signal in the frequency band, the impact on the receiving signal-to-noise ratio of the signal at the receiving end is lower than that of the background thermal noise at the receiving end;

[0021] The pilot signal provides guidance, carrier and clock synchronization, standard timing and indication information for multiple types...

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Abstract

A bypass network guiding method in an open wireless channel is disclosed. A terminal station is selected in the open wireless channel as a reference, and a pilot signal is sent. The pilot signal occupies all or part of the frequency band of the open wireless channel and is transmitted. The whole frequency band or part of the frequency band occupied by the signal in the open wireless channel is the pilot frequency band. The power of the pilot signal accounts for 0.1‰-5% of the total power of the pilot frequency band. When the pilot signal is sent, it is spread by the spreading code. , the noise-like low-power spectrum signal mode is superimposed on the communication signal in the pilot frequency band, and the impact on the receiving signal-to-noise ratio of the receiving end signal is lower than that of the receiving end's background thermal noise; the pilot signal is multi-type in the channel The terminal stations build a network and communicate with each other to provide guidance, carrier and clock synchronization, standard timing and indication information.

Description

technical field [0001] The invention relates to the technical field of wireless communication, in particular to a bypass network guiding method in an open wireless channel. Background technique [0002] Satellite channels are an important category of open wireless channels. In the following technical descriptions, synchronous satellite communication is used as an example of open wireless channels. Other open wireless channel scenarios, such as ground mobile communication networks, radio communication networks, trunking communication network technologies and The application scenarios can be deduced like this. [0003] In the satellite network, there are two basic network forms: star network and mesh network. [0004] In a star network, any two terminal stations need to establish forward link synchronization and reverse link synchronization with the central station first. After the synchronization is completed, the terminal station applies to the central station to join the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B7/185H04J3/06
CPCH04B7/1851H04J3/0635H04B7/18513H04W56/002H04B1/7087H04B1/7073H04J13/004H04L5/0048H04J13/0025H04J13/0029H04B1/70735
Inventor 金野何涛吕国成刘爱民王宝吉董明科
Owner PEKING UNIV
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