FIELD: radio engineering, communication.
SUBSTANCE: invention relates to wireless communication, particularly timing synchronisation for user equipment in a multicarrier long term evolution-advanced (LTE-A) system. At least one downlink timing associated with at least one downlink carrier is determined, and an uplink timing associated with an uplink group of carriers is established based on at least one downlink timing and a timing offset associated with the uplink group of carriers. Each of the uplink group of carriers is then transmitted within a threshold value of the uplink timing. According to another version, a downlink communication is transmitted to a wireless terminal via at least one downlink carrier, wherein the version includes assigning a timing offset to an uplink group of carriers, and providing the timing offset to the wireless terminal via the at least one downlink carrier. An uplink communication is then received via the uplink group of carriers according to the timing offset.
EFFECT: facilitating timing alignment in a multicarrier communication system.
92 cl, 14 dwg
