Patent ID: 9344985
Filing Date: 2016-05-17
CPC Classification: H04B,H04J,H04L,H04W

Claim Text:
1. A method, comprising: receiving, by a mobile terminal, downlink transmissions of a first radio cell having a downlink component carrier and a time-aligned uplink component carrier and of a second radio cell having a downlink component carrier and a non-time-aligned uplink component carrier; determining, by the mobile terminal, a reception time difference or propagation delay difference for downlink transmissions from an aggregation access point to the mobile terminal via the downlink component carrier of the first radio cell and via the downlink component carrier of the second radio cell, respectively; and aligning uplink transmissions transmitted from the mobile terminal to the aggregation access point via the uplink component carrier of the first radio cell and the uplink component carrier of the second radio cell to arrive at the aggregation access point simultaneously, the aligning including adjusting a timing advance for uplink transmissions on the uplink component carrier of the second radio cell based on the timing advance for uplink transmissions on the time aligned uplink component carrier of the first radio cell and the determined reception time difference.