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High rate payload management between the ground segment and a satellite

A technology of payload and satellite, applied in the direction of network traffic/resource management, advanced technology, wireless communication, etc., can solve the problems of telecom operators, low data rate, time-consuming, etc.

Pending Publication Date: 2021-04-20
THALES SA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the low data rate, it can take some time, usually a few days, which can be problematic for telecom operators

Method used

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  • High rate payload management between the ground segment and a satellite
  • High rate payload management between the ground segment and a satellite
  • High rate payload management between the ground segment and a satellite

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Experimental program
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no. 3 approach

[0092] Thanks to the third embodiment, the remote control signal can provide data on the next pulses per second PPS and the delay from the last PPS to the start of the command frame. This particular remote onboard is interpreted to allow synchronization. Frequency soft steering is performed based on the uplink symbol rate, and in the same way absolute time soft steering is based on remote control data and a calibration factor that depends on the Satellite delays, and also ground delay clocks based on bringing antenna data into the remote.

[0093] The relative radial velocity of the satellites and / or meteorological conditions (such as rainfall) compared to the mission control center may generate a frequency shift on the signaling channel due to the Doppler effect. In that case, the on-board clock is corrected based on the movement of the satellites and / or based on the determined meteorological conditions.

[0094] Advantageously, the method comprises a sub-step d3) of contro...

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PUM

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Abstract

The invention relates to a method of performing communication between a satellite (SAT) and a ground segment (GS), the satellite (SAT) comprising a platform (PF) and a payload (PL), the ground segment comprising at least one satellite control center (SCC) configured to generate or process data associated with the satellite platform, said satellite control center (SCC) directly communicating with the satellite platform (PF) on a dedicated channel, referred to as platform channel, characterized in that the method comprises a step of directly communicating, between the mission control center (MCC) and an on board processing unit (PRU) which is configured to manage at least a part of the payload of the satellite, telecommand or telemetry data of the part of the payload of the satellite, on another dedicated channel, referred to as signalling channel, said signalling channel and said platform channel being distinct.

Description

technical field [0001] The present invention relates to methods of communication between satellites and terrestrial segments. The invention is suitable for use in the field of satellite telecommunications, and more particularly in the field of telecommunications payload management. Background technique [0002] In the space telecommunications market, end-users (i.e., telecom operators) have increasingly complex needs in terms of real-time over-the-air configurability, over-the-air update of missions, and flexibility. For example, one of the requirements of telecom operators is to be able to adapt services immediately to current market demands. However, these needs must be met while meeting the mass and volume requirements of onboard payload management equipment. [0003] Until now, payloads in telecommunication satellites are managed via the same channel as that dedicated to platform management (or spacecraft management), which is also known as the Telemetry, Tracking and ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B7/0413H04B7/185H04W12/037H04W12/61H04W28/02H04W84/06
CPCH04B7/18519H04B7/18597H04B7/18582H04B7/18513
Inventor R·雷加达·阿尔瓦雷斯S·克劳塞J·普拉特A·德尔巴里奥·萨拉斯R·莫雷诺·鲁阿诺
Owner THALES SA