Paging method, system and device of low earth orbit satellite based on 5G core network and medium
A low-orbit satellite and core network technology, applied in the field of satellite mobile communication, can solve problems such as low communication efficiency, increased communication delay, and communication interruption, and achieve the goals of improving communication efficiency, reducing paging delay, and reducing signaling consumption Effect
Active Publication Date: 2021-08-31
IPLOOK NETWORKS CO LTD
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Problems solved by technology
However, due to the high-speed movement of the low-orbit satellite system, there will be frequent switching. If a suitable link cannot be switched, the communication will be interrupted or the communication delay will be greatly increased.
[0003] Most of the current paging is coarse-grained paging, that is, a large number of satellites will be paged to connect to idle satellite terminals, which will bring a lot of signaling overhead and put great pressure on satellite communications , so that the communication efficiency is not high
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[0056] Embodiments of the present invention will be described in detail below, and examples of the embodiments are illustrated in the drawings, in which the same or similar reference numerals represent the same or similar elements or elements having the same or similar functions. The following is exemplary, and is intended to be used herein, not to be construed as limiting the invention.
[0057] In the description of the present invention, it is to be understood that the orientation or positional relationship of the orientation, such as upper, lower, prior, and then left, right, etc., is only based on the orientation or positional relationship shown in the drawing. In order to facilitate the description of the invention and simplified description, rather than indicating or implying that the device or element must have a particular orientation, it is not understood to be limited to the present invention.
[0058] In the description of the present invention, several meanings are on...
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The invention discloses a paging method, system and device for a low earth orbit satellite based on a 5G core network and a storage medium. The method comprises the steps of: calculating a real-time position of a satellite terminal according to a historical position of the satellite terminal; calculating a real-time position of the satellite according to the satellite ephemeris data and / or the satellite almanac data; calculating to obtain a satellite list according to the real-time position of the satellite terminal and the real-time position of the satellite; acquiring a spot beam list corresponding to each satellite in the satellite list; calculating the busy probability of each spot beam in the spot beam list by using the prediction model; and selecting the spot beam with the minimum busy probability for paging. According to the paging method, system and device, the purpose of paging the satellite terminal without blindly sending information to batch satellites is achieved, the signaling consumption and paging time delay can be reduced, and the communication efficiency is improved. The paging method, system and device can be widely applied to the technical field of satellite mobile communication.
Description
Technical field [0001] The present invention relates to the field of satellite mobile communication technologies, in particular a paging method, system, device, and storage medium based on a low-track satellite based on a 5G core network. Background technique [0002] With the high-speed development of the satellite communication system, the problem of the call quality, data transmission rate and cost of use of the early low-track satellite communication system, and the application timing of low-track satellite communication is mature. Tracks and spectrums are conditions that communicate satellite can run very important, 5G and low-track satellites can bring high quality communications around the world. However, due to high speed movement, the low-track satellite system will have frequent switching. If the appropriate link is switched, the communication interruption or communication delay is increased. [0003] Most of the current paging is a rough granular paging, that is, a lar...
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IPC IPC(8): H04B7/185H04W68/02
CPCH04B7/1853H04B7/18545H04B7/18558H04W68/02H04B7/18556
Inventor 王丹周远长吕东
Owner IPLOOK NETWORKS CO LTD