Method for controlling data transmission rate in interactive satellite communication system
First Claim
1. A method for controlling a data transmission rate in an interactive satellite communication system, the method comprising the steps of:
- a) setting at least one threshold, which is a statistical time duration maintaining a fine sync state while a mobile terminal enters and departs from a Non-Line Of Sight (NLOS) region;
b) at a Network Control Center (NCC) adjusting allocated resources based on the Constant Resources Allocation (CRA) after detecting whether Satellite Access Control (SAC) is lost or not;
c) compensating transmission delay by reallocating if the mobile terminal returns from the NLOS region within a first threshold duration, wherein the mobile terminal maintains the fine sync state during the first threshold duration; and
d) deallocating all resources allocated based on the CRA if the mobile terminal does not return from the NLOS region within the first threshold duration.
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Abstract
A method for controlling data transmission rate in order to save waste of resources due to Non-Line Of Sight (NLOS) region when a mobile terminal passes through the NLOS region in an interactive satellite communication system is disclosed. The method includes the steps of setting at least one threshold; at a Network Control Center (NCC) adjusting allocated resources based on the Constant Resources Allocation (CRA) after detecting whether Satellite Access Control is lost or not; compensating transmission delay by reallocating if the mobile terminal returns from the NLOS region within a first threshold duration, wherein the mobile terminal maintains the fine sync state during the first threshold duration; and deallocating all resources allocated based on the CRA if the mobile terminal does not return from the NLOS region within the first threshold duration.
6 Citations
5 Claims
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1. A method for controlling a data transmission rate in an interactive satellite communication system, the method comprising the steps of:
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a) setting at least one threshold, which is a statistical time duration maintaining a fine sync state while a mobile terminal enters and departs from a Non-Line Of Sight (NLOS) region; b) at a Network Control Center (NCC) adjusting allocated resources based on the Constant Resources Allocation (CRA) after detecting whether Satellite Access Control (SAC) is lost or not; c) compensating transmission delay by reallocating if the mobile terminal returns from the NLOS region within a first threshold duration, wherein the mobile terminal maintains the fine sync state during the first threshold duration; and d) deallocating all resources allocated based on the CRA if the mobile terminal does not return from the NLOS region within the first threshold duration. - View Dependent Claims (2, 3, 4, 5)
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Specification