HANDLING OF UPLINK TRANSMISSION-TIMING DIFFERENCES

摘要

Techniques for managing differences in uplink transmit timing among aggregated carriers or groups of carriers. In one group of embodiments of these techniques, a mobile terminal- based mechanism is provided. In an example method according to these embodiments, a mobile terminal determines (830) that a difference in uplink transmit timing between a first carrier or group and a second carrier or group is or will be greater than a timing difference threshold and, in response to said determining, takes (840) an action with respect to at least one uplink carrier so as to avoid that the timing difference threshold is exceeded by uplink transmit timing differences for one or more subsequent uplink transmissions.