Is a
Patent attributes
Current Assignee
Patent Jurisdiction
Patent Number
Patent Inventor Names
Esmael Hejazi Dinan0
Date of Patent
March 5, 2013
0Patent Application Number
135563170
Date Filed
July 24, 2012
0Patent Citations Received
Patent Primary Examiner
Patent abstract
Transmission timing of a random access preamble in an uplink carrier of a carrier group being determined employing a synchronization signal transmitted on a downlink carrier of the carrier group. The wireless device receives a time alignment command from the base station. The time alignment command comprises a time adjustment value and an index identifying the carrier group. The wireless device apply the time adjustment value to uplink signals transmitted on all activated uplink carriers in the carrier group.
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