and service requirement all through the network the same component carrier may need to be configured with the same tdd configuration and synchronized with each other in order to avoid inter cell interference in this system and method a specified offset between component carriers is introduced so that when for example the enb assigns a ue more than one cc it would be possible that the communication between the enb and ue will have a good pair of ul dl coexisting in most of the ttis based on the inventive idea there may be several possible permutations for the ccs with different tti offsets in fig3 an example of a frame configuration according to an embodiment of the invention is shown to illustrate the use of the method one of the typical examples is the use of tdd configuration 5 350 where the downlink service dominates the overall traffic considering the fact that from the transport layer tcp point of view the downlink throughput is also related to the tcp ack feedback speed i e tcp round trip time effect the only one uplink tti occurring within one radio frame would not be enough especially for high data rate service correspondingly more than one of the ccs with tdd configuration 5 could be deployed with different offset for example 0 and 5 360 leading to shifted start of the subframes 330 or frames fig3 shows the different start times of the two carriers 310 see.