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Low-orbit satellite reverse seam communication switching method

A low-orbit satellite and satellite technology, which is applied in the field of satellite communication, can solve the problems of increased transmission delay, reduced handover success rate, and the inability to achieve fast and stable handover in satellite reverse slots, achieving reduced time delay, smooth handover, Improve the effect of switching success rate

Pending Publication Date: 2021-08-13
CHONGQING UNIV OF POSTS & TELECOMM
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Problems solved by technology

In this way, not only will the transmission delay be increased, but also the satellite beam has moved out of the user's receiving range before the handover process is completely completed,

Method used

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  • Low-orbit satellite reverse seam communication switching method
  • Low-orbit satellite reverse seam communication switching method
  • Low-orbit satellite reverse seam communication switching method

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[0023] The embodiments of the present invention will be easily understood by those skilled in the

[0024] The drawings are intended to be illustrative only, rather than illustrative, not to be understood, in order to better illustrate embodiments of the invention, and other components of the present invention will be omitted. Enlarge or shrink does not represent the size of the actual product; some well-known structures and descriptions thereof may be understood in t...

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Abstract

The invention relates to a low-orbit satellite reverse seam communication switching method, which belongs to the field of satellite communication, and comprises the following steps that when a user terminal detects that the RSRP value of a target satellite beam is greater than the RSRP value of a source satellite beam, a user switching demand report is sent to a target satellite; the target satellite obtains and locks resources of an idle channel, and sends a user switching reply report to a user terminal; the user terminal changes the transmitting frequency and the receiving frequency of the data channel of the user terminal into the receiving frequency and the transmitting frequency of a corresponding channel, and sends a switching confirmation report to the target satellite; the target satellite confirms the connection state of the current target satellite and the user terminal and sends a switching notification report to a network control center; the user terminal sends a resource release report to the source satellite and requires clearing of resources occupied by the user terminal in the source satellite; and the source satellite empties the channel. According to the method provided by the invention, a user can stably and quickly perform low-orbit satellite communication switching between satellite reverse seams.

Description

technical field [0001] The invention belongs to the field of satellite communication, and relates to a communication switching method between reverse slots of low-orbit satellites. Background technique [0002] Unlike medium and high-orbit satellites, low-orbit satellites are difficult to network and communicate when only a few satellites are deployed due to their proximity to the earth and small coverage of a single satellite. Therefore, the current low-orbit satellite communication systems are deployed in a large number and wide coverage manner. When satellites are in orbit, most of them move in the same direction as satellites in adjacent orbits. At the same time, two special orbits will also appear, these two orbits are adjacent orbits, but the direction of movement of the satellites running on these two orbits is opposite. Observed from the South Pole, the satellite on the left side of the orbit moves from south to north, and the satellite on the right side of the orb...

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Application Information

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IPC IPC(8): H04B7/185H04W36/00H04W36/18
CPCH04B7/18519H04W36/0085H04W36/18
Inventor 陈前斌曹晖唐伦
Owner CHONGQING UNIV OF POSTS & TELECOMM
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