公开(公告)号：DE602004025786D1

公开(公告)日：2010-04-15

申请号：DE602004025786

申请日：2004-08-06

Applicant: KOREA ELECTRONICS TELECOMM

Inventor： LEE HO-JIN ,  OH DEOCK-GIL ,  LEE KI-DONG ,  KIM HO-KYOM

IPC: H04B7/185 ,  H04B7/26

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.

公开(公告)号：DE60320082D1

公开(公告)日：2008-05-15

申请号：DE60320082

申请日：2003-08-29

Applicant: KOREA ELECTRONICS TELECOMM

Inventor： LEE KI-DONG ,  CHO YONG-HOON ,  LEE HO-JIN

IPC: H04B7/15 ,  H04B7/185

Abstract: A dynamic resource allocation apparatus and method for assigning timeslot in a return channel in multifrequency time division multiple access MF-TDMA in order to have a maximum throughput is disclosed. The apparatus includes: resource request amount collection unit for accumulating a requested resource amount corresponding to each of terminals during a super-frame period; resource request amount processing unit for dividing an accumulated requested resource amount by the number of frame pairs in a super frame and storing a sum of a result of dividing and rounding up a remain of the division to a nearest integer as a request amount of each corresponding terminal ; and resource allocation unit for deciding a time slot allocated at each of terminals corresponding to a frame pair based on optimal allocation amount, which is decided based on the request amount by the requested amount processing unit.

公开(公告)号：DE60320082T2

公开(公告)日：2009-06-04

申请号：DE60320082

申请日：2003-08-29

Applicant: KOREA ELECTRONICS TELECOMM

Inventor： LEE KI-DONG ,  CHO YONG-HOON ,  LEE HO-JIN

IPC: H04B7/15 ,  H04B7/185

Abstract: A dynamic resource allocation apparatus and method for assigning timeslot in a return channel in multifrequency time division multiple access MF-TDMA in order to have a maximum throughput is disclosed. The apparatus includes: resource request amount collection unit for accumulating a requested resource amount corresponding to each of terminals during a super-frame period; resource request amount processing unit for dividing an accumulated requested resource amount by the number of frame pairs in a super frame and storing a sum of a result of dividing and rounding up a remain of the division to a nearest integer as a request amount of each corresponding terminal ; and resource allocation unit for deciding a time slot allocated at each of terminals corresponding to a frame pair based on optimal allocation amount, which is decided based on the request amount by the requested amount processing unit.

公开(公告)号：AT460015T

公开(公告)日：2010-03-15

申请号：AT04254767

申请日：2004-08-06

Applicant: KOREA ELECTRONICS TELECOMM

Inventor： LEE HO-JIN ,  OH DEOCK-GIL ,  LEE KI-DONG ,  KIM HO-KYOM

IPC: H04B7/185 ,  H04B7/26

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.

公开(公告)号：AT391363T

公开(公告)日：2008-04-15

申请号：AT03255417

申请日：2003-08-29

Applicant: KOREA ELECTRONICS TELECOMM

Inventor： LEE KI-DONG ,  CHO YONG-HOON ,  LEE HO-JIN

IPC: H04B7/15 ,  H04B7/185

Abstract: A dynamic resource allocation apparatus and method for assigning timeslot in a return channel in multifrequency time division multiple access MF-TDMA in order to have a maximum throughput is disclosed. The apparatus includes: resource request amount collection unit for accumulating a requested resource amount corresponding to each of terminals during a super-frame period; resource request amount processing unit for dividing an accumulated requested resource amount by the number of frame pairs in a super frame and storing a sum of a result of dividing and rounding up a remain of the division to a nearest integer as a request amount of each corresponding terminal ; and resource allocation unit for deciding a time slot allocated at each of terminals corresponding to a frame pair based on optimal allocation amount, which is decided based on the request amount by the requested amount processing unit.