Patent
Optimal forbidden zone width method combining spectrum effectiveness and interference suppression in cognition satellite and ground integrated system
Jia Min,Lin Ping,Liu Xiaofeng,Guo Qing,Gu Xuemai +4 more
- 03 Aug 2016
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TL;DR: In this paper, an optimal forbidden zone width method combining spectrum effectiveness and interference suppression in a cognition satellite and ground integrated system is proposed to solve the problem of same frequency interference of ground components and satellite components.
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Abstract: The invention relates to the technical field of information and communication, specifically to an optimal forbidden zone width method combining spectrum effectiveness and interference suppression in a cognition satellite and ground integrated system, and aims to solve the problem of same frequency interference of ground components and satellite components. A system model built by the method comprises a multi-beam satellite, a plurality of complementary ground components (CGCs) and an earth station, and mainly directs at analysis of a scene where an earth station within a spot beam causes interference to an uplink of a ground user within an adjacent spot beam. To reduce interference to which a CGC of a spot beam edge is subjected, the method adopts a forbidden zone principle, utilizes an improved frequency division multiplexing scheme to perform theoretical analysis and simulation verification on same frequency interference and spectral effectiveness in a cognition satellite and ground integrated system, and at the same time, the method considers spectrum effectiveness and interference suppression in a combined manner, and proposes an optical EA strategy capable of enabling a system to realize maximum spectrum effectiveness under an acceptable interference level.
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Citations
Patent
High-throughput satellite communication system beam hopping method
Chen Zhang,Lin Wang,Gengxin Zhang,Xie Jidong +3 more
- 08 Mar 2019
TL;DR: In this paper, a high-throughput satellite communication system beam hopping method is proposed, where uniform clustering is carried out on total beams according to a business requirement, an objective function is established for the requirement, whether edge beam distance of adjacent clusters is equal to 2R and the same are in working status is monitored, if not, performance satisfies direct calculation of frequency spectrum efficiency, and if yes, an interference avoidance measure is taken, then the spectrum efficiency is calculated, a KKT condition is used for solving of time slot allocation numbers of a closed-form solution,
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Patent
Spectrum sharing method and device of spectrum sharing system and electronic equipment
Kuang Linling,Jiang Chunxiao,Chi Zhang,Zhong Yuanzhi +3 more
- 10 May 2019
TL;DR: In this paper, the authors proposed a frequency spectrum sharing method and device for a GEO satellite communication system and ground mobile communication system. And they provided an objective function to ensure that the ground mobile communications system can share the frequency spectrum based on a solving result under the condition that the GEO earth station is in normal communication.
4
Patent
Fusion satellite-ground system frequency sharing method and system based on dynamic spectrum allocation
Yang Mingchuan,Zhang Shujing,Xiao Na,Zhang Yumeng,Zhou He,Ma Chen,Shao Xinye +6 more
- 22 Dec 2017
TL;DR: In this paper, the authors proposed a frequency sharing method and system based on dynamic spectrum allocation for the fusion satellite-ground system frequency sharing, which solves the defects that a current frequency sharing technology of the fusion satellites ground system needs to maintain the active user intensity to be relatively lower and has very strong constrained conditions for a fusion satellite ground system.
2
Patent
Interference coordination method, high altitude platform station, and base station
Wang Kaiyao,Liu Yongjun +1 more
- 05 Jul 2018
TL;DR: In this paper, a base station and a high-altitude platform station send interference coordination information to the base station, which includes the interference starting time, the interference ending time and the frequency band of the carrier.
1
Patent
Resource allocation method based on interference avoidance in satellite-ground integrated network
Jia Min,Ximu Zhang,Gu Xuemai,Guo Qing,Liu Xiaofeng +4 more
- 23 Mar 2018
TL;DR: In this paper, a resource allocation method based on interference avoidance in a satellite-ground integrated network and related to the technical field of information and communication is proposed, where the fairness is taken into consideration, and the energy is efficient.
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TL;DR: In this paper, a measurement apparatus comprising means for checking for available radio spectrum resource in a first system in a radio coverage area; means for sending information to a second system indicating the availability of radio spectrum resources of the first system which is usable by said second system in at least part of the radio coverage areas.
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Analysis of interference and availability between satellite and ground components in an integrated mobile-satellite service system
TL;DR: Simulation results reveal that the satellite frequency reuse in the CGCs of the integrated MSS system can increase efficiency of satellite spectrum utilization with a tradeoff between CGC network capacity and intra-system interferences.
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Patent
Satellite frequency-band sharing method based on beam hopping mode
Zhang Jianjun,Xue Ming +1 more
- 02 Mar 2016
TL;DR: In this article, a satellite frequency-band sharing method based on a beam hopping mode was proposed, in which a secondary user adjusts the transmitting power itself according to the beam hopping modes of the main user satellite, and adjusts the beam-hopping mode of the secondary user according to a beam forbidden radius.
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