Direct transition to CELL DCH

摘要

The present invention relates to methods and arrangements for reducing the time delay associated with the initialisation of a data transfer in a Universal Mobile Telecommunications Systems (UMTS) terrestrial radio access network (UTRAN). A Radio Network Controller (RNC) initiates a data transfer by transmitting a downlink paging message to a User Equipment (UE), wherein the UE is capable of being in the states URA PCH, CELL PCH or CELL DCH. The paging message comprises information for transferring the UE from the URA PCH or the CELL PCH state directly to the CELL DCH state by means of delay reducing information indicated in the paging message.

主权项

1. A method in a User Equipment (UE) comprising the steps of:
determining a traffic volume of data to be transmitted; introducing, into an uplink cell update message, information indicating the determined traffic volume is above a pre-configured threshold; transmitting the uplink cell update message; receiving, from a Radio Network Controller (RNC), a cell update confirm message; and transferring, based at least in part on the received cell update confirm message, to a Universal Mobile Telecommunications System (UMTS) Terrestrial Radio Access Network (UTRAN) Cell Dedicated Channel (CELL DCH) state; and wherein the information indicating the traffic volume of the data to be transmitted is above a pre-configured threshold is delay reducing information.