CN112532310B - Satellite emergency communication and ubiquitous satellite Internet of things spectrum sharing method and device - Google Patents
Satellite emergency communication and ubiquitous satellite Internet of things spectrum sharing method and device Download PDFInfo
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- CN112532310B CN112532310B CN202011515409.9A CN202011515409A CN112532310B CN 112532310 B CN112532310 B CN 112532310B CN 202011515409 A CN202011515409 A CN 202011515409A CN 112532310 B CN112532310 B CN 112532310B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
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- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/14—Relay systems
- H04B7/15—Active relay systems
- H04B7/185—Space-based or airborne stations; Stations for satellite systems
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- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
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Abstract
A method and a device for sharing frequency spectrum of satellite emergency communication and ubiquitous satellite Internet of things are used for sharing frequency spectrum resources of satellite emergency communication to a newly accessed ubiquitous satellite Internet of things, and the method comprises the following steps: detecting signal strength within a spectral bandwidth: if the current signal strength is greater than or equal to a preset transmission threshold of the Internet of things, issuing a silencing signaling to the ubiquitous satellite Internet of things terminal so that the ubiquitous satellite Internet of things terminal can be subjected to silencing idle to stop using the frequency spectrum; if the current signal intensity is smaller than a preset transmission threshold of the internet of things and the silent idle time of the ubiquitous satellite internet of things terminal reaches a preset time threshold, issuing a recovery signaling to the ubiquitous satellite internet of things terminal so that the ubiquitous satellite internet of things terminal recovers the use spectrum; the method solves the problem of frequency spectrum resource reuse of satellite communication in the Internet of things ubiquitous communication network and the high-reliability emergency communication network, effectively utilizes resources, and achieves the overall low-cost deployment goal.
Description
Technical Field
The invention relates to a satellite communication technology, in particular to network multiplexing under spectrum sensing, and particularly relates to a method and a device for sharing a spectrum of an emergency satellite communication and ubiquitous satellite Internet of things.
Background
The satellite communication is increasingly applied in the current communication infrastructure construction process due to the characteristics of wide coverage and high availability, and meanwhile, the deployment of the satellite communication is irrelevant to the communication distance, so that the satellite communication has great cost advantage in the field of remote communication. The characteristics of satellite communication are particularly suitable for ubiquitous communication of the Internet of things and emergency communication scenes with high requirements for reliability.
At present, the common mode in the industry is that the communication of the internet of things and the emergency communication network based on the satellite are independently established, and the two networks independently rent the frequency spectrum resources. However, the use cost of frequency spectrum resources in the process of opening the ground equipment is high due to the scarcity of space-based part resources depended on by satellite communication, the equipment and network cost are not considered, and the annual cost of the current common bidirectional 2MHz special line is as much as 60 ten thousand yuan. The high cost restricts the application of satellite communication in the ubiquitous communication field, and meanwhile, the emergency backup communication field has a low utilization rate of the leased frequency spectrum bandwidth, and the annual utilization rate is less than 10%, so that the great waste of frequency spectrum resources is caused.
Disclosure of Invention
The invention mainly aims at the defects of the related prior art, provides a method and a device for sharing the frequency spectrum of the satellite emergency communication and the ubiquitous satellite internet of things, solves the problem of frequency spectrum resource reuse of the satellite communication in the ubiquitous communication network and the high-reliability emergency communication network of the internet of things, effectively utilizes resources, and achieves the overall low-cost deployment target.
In order to achieve the above object, the present invention employs the following techniques:
a spectrum sharing method for satellite emergency communication and ubiquitous satellite Internet of things is used for sharing spectrum resources of satellite emergency communication to a newly accessed ubiquitous satellite Internet of things, and comprises the following steps:
detecting signal strength within a spectral bandwidth:
if the current signal strength is greater than or equal to a preset transmission threshold of the Internet of things, transmitting a silencing signaling to the ubiquitous satellite Internet of things terminal so that the ubiquitous satellite Internet of things terminal can be subjected to silencing idle to stop using the frequency spectrum;
if the current signal intensity is smaller than a preset transmission threshold of the internet of things and the silent idle time of the ubiquitous satellite internet of things terminal reaches a preset time threshold, issuing a recovery signaling to the ubiquitous satellite internet of things terminal so that the ubiquitous satellite internet of things terminal recovers the use spectrum;
if the current signal strength is greater than or equal to a preset transmission threshold of the Internet of things and greater than or equal to a preset transmission threshold of an emergency communication network, entering an interference backoff time state, wherein the frequency spectrum is not used for satellite emergency communication or ubiquitous satellite Internet of things; the emergency communication network transmission threshold is greater than the internet of things transmission threshold;
and if the current signal intensity is greater than or equal to a preset transmission threshold of the Internet of things and smaller than a preset transmission threshold of the emergency communication network, enabling the ubiquitous satellite Internet of things terminal to be in silent idle state, and enabling the frequency spectrum to be used for satellite emergency communication.
The utility model provides a satellite emergency communication and ubiquitous satellite thing networking frequency spectrum sharing device for the frequency spectrum resource of emergent communication of satellite shares the use to the ubiquitous satellite thing networking of new access, includes carrier sensing equipment, and carrier sensing equipment is connected respectively with satellite emergency communication central station and ubiquitous satellite thing networking central station.
The carrier detection equipment is used for detecting the signal intensity in the frequency spectrum bandwidth, and when the current signal intensity is greater than or equal to a preset transmission threshold of the Internet of things, the ubiquitous satellite Internet of things central station is informed so that the ubiquitous satellite Internet of things central station sends a silencing signaling to the ubiquitous satellite Internet of things terminal administered by the ubiquitous satellite Internet of things central station to control the ubiquitous satellite Internet of things terminal to carry out silencing vacancy so as to stop using the frequency spectrum; when the current signal strength is smaller than a preset transmission threshold of the Internet of things and the time that the ubiquitous satellite Internet of things terminal is in the silent idle state reaches a preset time threshold, the ubiquitous satellite Internet of things central station is informed, so that the ubiquitous satellite Internet of things central station issues a recovery signaling to the ubiquitous satellite Internet of things terminal administered by the ubiquitous satellite Internet of things central station to control the ubiquitous satellite Internet of things terminal to recover the use spectrum.
The carrier detection equipment is used for informing the ubiquitous satellite Internet of things central station to issue a silent signaling and informing the satellite emergency communication central station to enter an interference back-off time state when the current signal strength is greater than or equal to a preset Internet of things transmission threshold and greater than or equal to a preset emergency communication network transmission threshold, so that the frequency spectrum is not used for satellite emergency communication and ubiquitous satellite Internet of things; the emergency communication network transmission threshold is larger than the internet of things transmission threshold.
The carrier sensing equipment is used for informing the ubiquitous satellite Internet of things central station to issue a silence signaling and simultaneously informing the satellite emergency communication central station when the current signal strength is greater than or equal to a preset Internet of things transmission threshold and smaller than a preset emergency communication network transmission threshold, so that the satellite emergency communication central station provides frequency spectrum for the satellite emergency terminals administered by the satellite emergency communication central station.
An electronic device, comprising: at least one processor and a memory; wherein the memory stores computer execution instructions; the computer-executable instructions stored in the memory are executed on the at least one processor, so that the at least one processor executes the method for sharing the spectrum of the satellite emergency communication and the ubiquitous satellite internet of things.
A computer-readable storage medium having a computer program stored thereon, wherein when the computer program is executed by a processor, the computer program controls a device in which the storage medium is located to execute a method for sharing a spectrum of an internet of things with a satellite emergency communication and a ubiquitous satellite.
The invention has the beneficial effects that:
1. the method adopts a spectrum sensing mode to solve the problem of spectrum resource reuse of satellite communication in an Internet of things ubiquitous communication network and a high-reliability emergency communication network, and adopts a strategy of 'free-time Internet of things and busy-time emergency' to plan the spectrum use, so that the overall low-cost deployment target is achieved;
2. the spectrum sensing scheme based on the detection mode is simple and reliable, dual-network multiplexing of the same spectrum resource can be realized, after the scheme is used, the spectrum resource with low utilization rate can be reconstructed into a ubiquitous satellite internet of things communication network on the premise of not additionally increasing spectrum resource investment, and the use cost of the spectrum resource is reduced by 50% compared with that of the traditional mode.
Drawings
The drawings described herein are for illustrative purposes only of selected embodiments and not all possible implementations, and are not intended to limit the scope of the present disclosure.
Fig. 1 is a flowchart of a spectrum sharing method according to an embodiment of the present application.
Fig. 2 is a block diagram of a spectrum sharing apparatus according to an embodiment of the present application.
Fig. 3 is an example of an application scenario of the spectrum sharing device according to the embodiment of the present application.
Fig. 4 is a plot of strength of a carrier detect signal according to an embodiment of the present application.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings, but the described embodiments of the present invention are a part of the embodiments of the present invention, not all of the embodiments of the present invention.
Example one
The embodiment provides a method for sharing a spectrum of satellite emergency communication and ubiquitous satellite internet of things, which is used for sharing a spectrum resource of satellite emergency communication to a newly accessed ubiquitous satellite internet of things, and as shown in fig. 1, the method comprises the following steps:
detecting signal strength within a spectral bandwidth:
if the current signal strength is greater than or equal to a preset transmission threshold of the Internet of things, transmitting a silencing signaling to the ubiquitous satellite Internet of things terminal so that the ubiquitous satellite Internet of things terminal can be subjected to silencing idle to stop using the frequency spectrum;
if the current signal intensity is smaller than a preset transmission threshold of the internet of things and the silent idle time of the ubiquitous satellite internet of things terminal reaches a preset time threshold, issuing a recovery signaling to the ubiquitous satellite internet of things terminal so that the ubiquitous satellite internet of things terminal recovers the use spectrum;
if the current signal intensity is greater than or equal to a preset transmission threshold of the Internet of things and greater than or equal to a preset transmission threshold of an emergency communication network, entering an interference back-off time state, wherein the frequency spectrum is not used for satellite emergency communication or ubiquitous satellite Internet of things; the emergency communication network transmission threshold is greater than the internet of things transmission threshold;
and if the current signal intensity is greater than or equal to a preset transmission threshold of the Internet of things and smaller than a preset transmission threshold of the emergency communication network, enabling the ubiquitous satellite Internet of things terminal to be in silent idle state, and enabling the frequency spectrum to be used for satellite emergency communication.
Example two
The spectrum sharing device for the satellite emergency communication and the ubiquitous satellite internet of things is used for sharing spectrum resources of the satellite emergency communication to a newly accessed ubiquitous satellite internet of things and comprises carrier sensing equipment, and the carrier sensing equipment is connected with a satellite emergency communication central station and a ubiquitous satellite internet of things central station respectively as shown in fig. 2.
In this example, a satellite emergency communication central station is not modified, a newly opened/accessed ubiquitous satellite internet-of-things central station is provided with carrier sensing equipment, the use condition of the current shared spectrum resource is real-time through the carrier sensing equipment, the use of the spectrum resource is automatically sensed, a spectrum use strategy is determined according to the use condition, and an application scene is shown in fig. 3.
The carrier sensing equipment senses signal intensity in a frequency spectrum bandwidth, different frequency spectrum using strategies are determined according to different signal intensities, and a carrier sensing signal intensity curve is shown in fig. 4 and is applied to the ubiquitous power internet of things and emergency support networks.
When the current signal strength is greater than or equal to the preset transmission threshold of the internet of things, as shown in fig. 4, the carrier sensing device notifies the ubiquitous satellite internet of things central station, so that the ubiquitous satellite internet of things central station issues a silencing signaling to the ubiquitous satellite internet of things terminal administered by the ubiquitous satellite internet of things central station to control the ubiquitous satellite internet of things terminal, namely the ubiquitous power internet of things terminal in the example of fig. 4, and the ubiquitous power internet of things terminal is subjected to silencing idle so as to stop using the spectrum.
When current signal strength is less than the preset transmission threshold of the internet of things, and the time that the ubiquitous satellite internet of things terminal is in the silent idle state reaches the preset time threshold, as shown in fig. 4, the ubiquitous satellite internet of things central station is informed to enable the ubiquitous satellite internet of things central station to give out the restoration signaling to the ubiquitous satellite internet of things terminal administered by the ubiquitous satellite internet of things central station, namely the ubiquitous power internet of things terminal in the example of fig. 4, so as to control the ubiquitous power internet of things terminal to restore the use spectrum.
When the current signal strength is greater than or equal to a preset transmission threshold of the internet of things and greater than or equal to a preset transmission threshold of the emergency communication network, as shown in fig. 4, the ubiquitous satellite internet of things center station is informed to issue a silence signaling, and simultaneously the satellite emergency communication center station is informed to enter an interference backoff time state, so that the frequency spectrum is not used for an emergency guarantee network or a ubiquitous power internet of things; the transmission threshold of the emergency communication network is larger than the transmission threshold of the Internet of things.
When the current signal strength is greater than or equal to the preset transmission threshold of the internet of things and less than the preset transmission threshold of the emergency communication network, as shown in fig. 4, the ubiquitous satellite internet of things central station is notified to issue a silence signaling, and meanwhile, the satellite emergency communication central station is notified, so that the satellite emergency communication central station provides frequency spectrum for the emergency guarantee network terminal administered by the satellite emergency communication central station.
The signal strength judgment threshold and the duration threshold based on the detection mode can be flexibly set according to the existing signal using mode of the emergency communication network during engineering implementation.
EXAMPLE III
This example provides an electronic device, including: at least one processor and a memory; wherein the memory stores computer execution instructions; the computer-executable instructions stored in the memory are executed by the at least one processor, so that the at least one processor executes the method for spectrum sharing between the satellite emergency communication and the ubiquitous satellite internet of things according to the first embodiment.
Example four
The embodiment provides a computer-readable storage medium, on which a computer program is stored, and when the computer program is executed by a processor, the apparatus in which the storage medium is located is controlled to execute the method for spectrum sharing between satellite emergency communication and ubiquitous satellite internet of things according to the first embodiment.
The above is only a preferred embodiment of the present invention and is not intended to limit the present invention, and it is apparent that those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (4)
1. A spectrum sharing method for satellite emergency communication and ubiquitous satellite Internet of things is characterized in that spectrum resources of the satellite emergency communication are shared and used for a newly accessed ubiquitous satellite Internet of things, and the method comprises the following steps:
detecting signal strength within a spectral bandwidth:
if the current signal strength is greater than or equal to a preset transmission threshold of the Internet of things, transmitting a silencing signaling to the ubiquitous satellite Internet of things terminal so that the ubiquitous satellite Internet of things terminal can be subjected to silencing idle to stop using the frequency spectrum;
if the current signal intensity is smaller than a preset transmission threshold of the internet of things and the silent idle time of the ubiquitous satellite internet of things terminal reaches a preset time threshold, issuing a recovery signaling to the ubiquitous satellite internet of things terminal so that the ubiquitous satellite internet of things terminal recovers the use spectrum;
if the current signal intensity is greater than or equal to a preset transmission threshold of the Internet of things and greater than or equal to a preset transmission threshold of an emergency communication network, entering an interference back-off time state, wherein the frequency spectrum is not used for satellite emergency communication or ubiquitous satellite Internet of things; the emergency communication network transmission threshold is greater than the Internet of things transmission threshold;
and if the current signal intensity is greater than or equal to a preset transmission threshold of the Internet of things and less than a preset transmission threshold of the emergency communication network, enabling the ubiquitous satellite Internet of things terminal to be in silent idle state and enabling the frequency spectrum to be used for satellite emergency communication.
2. A spectrum sharing device for satellite emergency communication and ubiquitous satellite Internet of things is characterized by being used for sharing spectrum resources of satellite emergency communication to a newly-accessed ubiquitous satellite Internet of things and comprising carrier sensing equipment, wherein the carrier sensing equipment is respectively connected with a satellite emergency communication central station and a ubiquitous satellite Internet of things central station;
the carrier detection equipment is used for detecting the signal intensity in the frequency spectrum bandwidth, and when the current signal intensity is greater than or equal to a preset transmission threshold of the Internet of things, the ubiquitous satellite Internet of things central station is informed, so that the ubiquitous satellite Internet of things central station sends a silencing signaling to a ubiquitous satellite Internet of things terminal governed by the ubiquitous satellite Internet of things central station to control the ubiquitous satellite Internet of things terminal to carry out silencing vacancy, and the frequency spectrum is stopped being used; when the current signal intensity is smaller than a preset transmission threshold of the internet of things and the silent idle time of the ubiquitous satellite internet of things terminal reaches a preset time threshold, informing the ubiquitous satellite internet of things central station so that the ubiquitous satellite internet of things central station issues a recovery signaling to the ubiquitous satellite internet of things terminal governed by the ubiquitous satellite internet of things central station to control the ubiquitous satellite internet of things terminal to recover the use spectrum; when the current signal intensity is greater than or equal to a preset transmission threshold of the Internet of things and greater than or equal to a preset transmission threshold of an emergency communication network, a ubiquitous satellite Internet of things center station is informed to send a silence signaling, and the satellite emergency communication center station is informed to enter an interference back-off time state, so that the frequency spectrum is not used for satellite emergency communication or ubiquitous satellite Internet of things; the emergency communication network transmission threshold is greater than the internet of things transmission threshold; when the current signal intensity is greater than or equal to a preset transmission threshold of the internet of things and smaller than a preset transmission threshold of an emergency communication network, the ubiquitous satellite internet of things central station is informed to issue a silence signaling, and meanwhile, the satellite emergency communication central station is informed, so that the satellite emergency communication central station provides frequency spectrum for the satellite emergency terminals administered by the satellite emergency communication central station.
3. An electronic device, comprising: at least one processor and memory; wherein the memory stores computer-executable instructions; computer-executable instructions stored in the memory for execution by the at least one processor cause the at least one processor to perform the method for spectrum sharing of satellite emergency communications with ubiquitous satellite internet of things of claim 1.
4. A computer-readable storage medium having a computer program stored thereon, wherein the computer program, when executed by a processor, controls an apparatus in the storage medium to perform the method for spectrum sharing between emergency satellite communications and ubiquitous satellite internet of things according to claim 1.
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| CN102651869A (en) * | 2011-02-28 | 2012-08-29 | 中兴通讯股份有限公司 | Method and device for distributing spectrum resources |
| US10602527B2 (en) * | 2014-04-18 | 2020-03-24 | Qualcomm Incorporated | Channel selection scanning in shared spectrum |
| CN105407489B (en) * | 2014-09-12 | 2020-06-23 | 中兴通讯股份有限公司 | Spectrum sharing method and transmission node |
| CN106612140B (en) * | 2015-10-27 | 2020-04-24 | 北京信威通信技术股份有限公司 | System for satellite mobile communication multi-system coexistence |
| CN105744531B (en) * | 2016-02-04 | 2019-05-24 | 中国空间技术研究院 | GEO and NGEO telecommunication satellite frequency spectrum sharing method based on in-line arrangement AF panel |
| WO2019118020A1 (en) * | 2017-12-15 | 2019-06-20 | Google Llc | Satellite-based narrow-band communication |
| CN108882245B (en) * | 2018-07-03 | 2023-02-28 | 中国人民解放军陆军工程大学 | GEO and LEO cognitive satellite network and dynamic frequency allocation method thereof |
| CN111031476B (en) * | 2019-12-24 | 2021-10-26 | 哈尔滨工业大学 | Satellite-ground spectrum sharing method based on geographic information database |
| CN111405571B (en) * | 2020-03-12 | 2022-08-12 | 清华大学 | Spectrum sharing method for satellite unmanned aerial vehicle hybrid network |
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