EP 1221211 A2 20020710 - APPARATUS AND METHOD FOR EFFICIENT TDMA BANDWIDTH ALLOCATION FOR TCP/IP SATELLITE-BASED NETWORKS
Title (en)
APPARATUS AND METHOD FOR EFFICIENT TDMA BANDWIDTH ALLOCATION FOR TCP/IP SATELLITE-BASED NETWORKS
Title (de)
VORRICHTUNG UND VERFAHREN ZUR EFFEKTIVEN TDMA-BANDBREITENZUTEILUNG IN TCP/IP SATELLITENNETZWERKEN
Title (fr)
APPAREIL ET PROCEDE POUR L'ATTRIBUTION EFFICACE DE LARGEUR DE BANDE AMRT POUR RESEAUX SATELLITAIRES TCP/IP
Publication
Application
Priority
- US 0106563 W 20010301
- US 18837500 P 20000310
- US 72293000 A 20001127
Abstract (en)
[origin: WO0169813A2] A communication system balances message traffic between return channel groups and within the groups, so that the user does not control the specific transmission frequency used. Uplink frequencies and bandwidths for the return channels are set by the system in a return channel control message in the broadcast signal so as to account for system and return channel group laoding, and to account for user message backlogs. An initial transmission from a remote user may be made using an ALOHA-type burst signal that provides a message backlog to the control station, and is made on a frequency determined from a randomly weighted, load-based frequency selection process. The system, and not the individual users determine the frequency and channel allocations. For large backlogs or priority users, periodic bandwidth is provided. A method for balancing loads among and between groups of return channels in the communication system includes requesting return channel bandwidth in an uplink message from a remote user to a control station. The uplink message may include both a backlog indicator and a bandwidth allocation request provided to a Network Operations Center (NOC) which can be used to set the return channel bandwidth and frequency for the remote uplink. A user message is transmitted on the designated return channel frequency using bandwidth allocated in accordance with the backlog indicator and a bandwidth allocation request so that traffic loads are maintained in balance between established return channel frequency groups, and within each return channel frequency group.
IPC 1-7
IPC 8 full level
H04J 3/00 (2006.01); H04B 7/155 (2006.01); H04B 7/185 (2006.01); H04L 12/56 (2006.01); H04B 7/212 (2006.01)
CPC (source: EP KR)
H04B 7/18584 (2013.01 - EP); H04W 28/20 (2013.01 - KR); H04W 84/06 (2013.01 - KR); H04W 88/12 (2013.01 - KR); H04B 7/212 (2013.01 - EP)
Citation (search report)
See references of WO 0169813A2
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR
DOCDB simple family (publication)
WO 0169813 A2 20010920; WO 0169813 A3 20020510; AU 4538001 A 20010924; BR 0105025 A 20020219; CA 2373678 A1 20010920; EP 1221211 A2 20020710; IL 146263 A0 20020725; JP 2003527033 A 20030909; KR 20020001874 A 20020109; MX PA01011464 A 20020730; NO 20015475 D0 20011108; NO 20015475 L 20011213
DOCDB simple family (application)
US 0106563 W 20010301; AU 4538001 A 20010301; BR 0105025 A 20010301; CA 2373678 A 20010301; EP 01918285 A 20010301; IL 14626301 A 20010301; JP 2001567152 A 20010301; KR 20017014359 A 20011110; MX PA01011464 A 20010301; NO 20015475 A 20011108