A method for secure satellite communications
A satellite communication and satellite technology, which is applied in the field of satellite communication, can solve problems such as low cost of a single satellite, direct communication without data landing, and attacks on data landing, and achieve the effect of reducing computing tasks and low cost
Active Publication Date: 2021-02-09
SHANGHAI SPACECOM SATELLITE TECH LTD
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Problems solved by technology
However, due to the large number of low-orbit satellites and the low cost of a single satellite, the on-board processing capacity of low-orbit satellites is limited, so it is difficult to realize exchange or routing between terminals on the star, so that it cannot effectively support low-orbit satellite security communication (as shown in Fig. 4)
Therefore, the existing technologies cannot or are difficult to solve the problem of direct communication between large-scale user terminals in the low-orbit satellite communication system without landing data, so that this type of communication has the risk of being attacked by data landing, and lacks sufficient communication security.
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[0046] It should be noted that components in the various figures may be shown exaggerated for the purpose of illustration and are not necessarily true to scale. In the various figures, identical or functionally identical components are assigned the same reference symbols.
[0047] In the present invention, each embodiment is only intended to illustrate the solutions of the present invention, and should not be construed as limiting.
[0048] In the present invention, unless otherwise specified, the quantifiers "a" and "an" do not exclude the scene of multiple elements.
[0049] It should also be pointed out here that in the embodiments of the present invention, for the sake of clarity and simplicity, only a part of parts or components may be shown, but those skilled in the art can understand that under the teaching of the present invention, specific The scene needs to add the required parts or components.
[0050] In addition, the numbers of the steps of the various methods o...
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The present invention relates to a method for secure satellite communication, comprising: a source terminal sends a first data packet to the source terminal access satellite; the source terminal access satellite determines an associated ground gateway station and connects the source terminal to the satellite; The address of the incoming satellite and the address of the destination terminal are sent to the ground gateway station; the ground gateway station determines the address of the destination terminal connected to the satellite associated with the destination terminal address and sends the destination terminal to the satellite according to the address of the source terminal connected to the satellite. The address of the terminal access satellite is sent back to the source terminal access satellite; the source terminal access satellite sends the second data packet to the destination terminal access satellite through the inter-satellite link; and the destination terminal access satellite sends the third data packet The packet is sent to the destination terminal. Through this method, the user communication data can be transmitted not through the ground gateway station, but through the inter-satellite link, thereby ensuring the communication security; in addition, it can also reduce or even eliminate the on-board routing calculations, etc. intensive operations.
Description
technical field [0001] The present invention relates generally to the field of satellite communications, and in particular to a method for secure satellite communications. Background technique [0002] Due to the limitations of low orbit height and limited coverage, low-orbit satellite communication usually requires dozens to hundreds of satellites to form a constellation to achieve seamless global communication coverage, so as to provide users with global communication services. Due to the different satellites in different regions, there are two main ways to realize the mutual communication between user terminals in different regions: 1) Communication through ground gateway stations: the satellites above the user terminals forward the user terminal communication data to the ground gateway stations, and the gateway stations receive into the ground communication network and forwarded by the ground communication network to the destination user terminal at the other end (as sho...
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IPC IPC(8): H04B7/185
CPCH04B7/1851H04B7/18513H04B7/18521H04B7/18578H04B7/18584
Inventor 谢卓辰张军周卫华田丰姜泉江刘洁李国通刘会杰朱野尤星张传鑫
Owner SHANGHAI SPACECOM SATELLITE TECH LTD