Method and System for adjusting the time of transmission of uplink transmission in a Long Term Evolution

摘要

A method and a system for adjusting the transmission time of sending an uplink transmission in a cell / initial Destination NODE B of a Universal Network Terrestrial Radio Access (E - Evolved UTRAN) immediately after a transfer from a NODE B Cell / fu Entity and the UTRAN.In One embodiment, a user equipment (UE) automatically calculates and applies a value of timing Advance (TA) based on the time value of NODE B Cell / source Current, measurements of reference Signal Channel Signalling Cell / node B and the knowledge of the Time Difference Relative (if any) cells / B nodes between source and destination.In another embodiment, the EU sends a request message of actual programming or Data packets with the ta value calculated applied to the uplink transmission time through the e - UTRAN uplink Radio Resources based on the preassigned not containment.In an alternative embodiment, the EU sends a request message of Programming with the new ta value applied to the calculated transmission time and a UTRAN ul - through a Synchronous random access channel (Rach).