EP 1264445 A1 20021211 - PACKET SCHEDULING IN UMTS USING SEVERAL CALCULATED TRANSFER RATES
Title (en)
PACKET SCHEDULING IN UMTS USING SEVERAL CALCULATED TRANSFER RATES
Title (de)
PAKETANORDNUNG IN EINEM UMTS-SYSTEM UNTER VERWENDUNG MEHRERER BERECHNETER ÜBERTRAGUNGSRATEN
Title (fr)
ORDONNANCEMENT DE PAQUETS DANS UN SYSTEME DE COMMUNICATION UMTS AU MOYEN DE PLUSIEURS VITESSES DE TRANSFERT CALCULEES
Publication
Application
Priority
- SE 0100406 W 20010223
- US 18500500 P 20000225
- US 69878500 A 20001027
Abstract (en)
[origin: WO0163855A1] Methods, systems, and arrangements enable packet scheduling in accordance with quality of service (QoS) constraints for data flows. In a Universal Mobile Telecommunications System (UMTS) network environment (100), for example, a Medium Access Control (MAC) layer (320) schedules packet transmission of various data flows to meet stipulated criteria, including permitted transport format combinations (TFCs) from a TFC set (TFCS). In first embodiment(s) (600), the TFC is selected based on guaranteed rate transmission rates, weighted fair queuing (WFQ) transmission rates (610, 805), QoS class, transport block set size (TBSS) (615), and optionally queue fill levels. These first embodiment(s) also further refine the selection process using backlog memories corresponding to previously unmet guaranteed and/or fair transmission rates. In second embodiment(s) (800), memory requirements are reduced by selecting a TFC based on guaranteed rate transmission rates QoS class, TBSS, and queue fill levels, without accommodating backlogs.
IPC 1-7
IPC 8 full level
H04L 12/54 (2013.01); H04L 12/56 (2006.01); H04L 12/861 (2013.01); H04Q 11/04 (2006.01); H04W 72/12 (2009.01); H04L 12/70 (2013.01); H04Q 7/38 (2006.01)
CPC (source: EP)
H04L 12/5601 (2013.01); H04L 49/90 (2013.01); H04Q 11/0478 (2013.01); H04W 72/543 (2023.01); H04L 2012/5632 (2013.01); H04L 2012/5656 (2013.01)
Citation (search report)
See references of WO 0163855A1
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 0163855 A1 20010830; AU 3630201 A 20010903; EP 1264445 A1 20021211; FI 7776 U1 20080229; FI U20070077 U0 20070226
DOCDB simple family (application)
SE 0100406 W 20010223; AU 3630201 A 20010223; EP 01908560 A 20010223; FI U20070077 U 20070226