Patent · US Expired

Controlling channel switching in a UMTS network

US7099622B2 · kind B2 · utility

15Cited by

0References

11Claims

0Family size

Assignee

Telefonaktiebolaget LM Ericsson (Publ) · SE

Inventors

Michael Meyer · Aachen, DE
Joachim Sachs · Aachen, DE
Stefan Wager · Espoo, FI
Reijo Matinmikko · Espoo, FI
Toomas Wigell · Espoo, FI
Janne Peisa · Espoo, FI
Edwin Van Der Pol · Enschede, NL

Key dates

Filing date	Oct 29, 2001
Grant date	Aug 29, 2006
Priority date	—
Expiry date	May 30, 2023

Classification

Technology area (CPC H)Electricity
CPC primaryH04W28/14
WIPO fieldDigital communication
WIPO sectorElectrical engineering

Abstract

In a UMTS Terrestrial Radio Access Network (UTRAN), a method of switching from a current common channel to a dedicated channel for a UE. The method comprises estimating the round trip delay for data packets travelling between the UE and a peer node with which the UE is communicating. The product of the estimated round trip delay and the bandwidth of the common channel or the dedicated channel is determined and a threshold defined on the basis of that product. A switch from the common channel to a dedicated channel is initiated when the fill level of the RLC buffer(s) in the UTRAN for the UE reaches or exceeds said threshold.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.