Patent ID: 8605709
Filing Date: 2013-12-10
Classification: H04W,Y02D

Abstract:
1. A method of providing signal synchronization for a radio access network, the method comprising: transmitting a first carrier including synchronization signals on a first frequency from the radio access network; transmitting information relating the first carrier on the first frequency with a second carrier on a second frequency from the radio access network, said information being intended to be used in synchronization by a wireless terminal upon addition of the second carrier, wherein the first and second frequencies are different; and transmitting a command to add the second carrier as a downlink for transmissions to the wireless terminal; wherein transmitting the command to add the second carrier comprises transmitting a flag having one of a first value and a second value, wherein the first value instructs the wireless terminal to synchronize and/or configure the second carrier using the synchronization signals of the first carrier, and wherein the second value instructs the wireless terminal to synchronize and/or configure the second carrier without using the synchronization signals of the first carrier.