Controlling channel switching in a UMTS network

Details Controlling channel switching in a UMTS network Controlling channel switching in a UMTS network

2006-08-29

2006-08-29

Anderson, Matthew (Department: 2618)

Telecommunications

Carrier wave repeater or relay system

Portable or mobile repeater

C455S003040, C455S013100, C455S428000, C455S439000, C455S063300, C370S299000, C370S329000, C370S352000, C370S353000

Reexamination Certificate

active

07099622

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.

REFERENCES:
patent: WO 96/37079 (1996-11-01), None
patent: WO 99/52307 (1999-10-01), None
patent: WO 99/66748 (1999-12-01), None
patent: WO 01/31948 (2001-05-01), None
patent: WO 01/31950 (2001-05-01), None

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