摘要 |
Method, apparatus, computer software and computer program products are provided in order to provide for periodic measurements related to a frequency identified by the network, such as a downlink frequency associated with a secondary uplink frequency. In the context of a method, a message is caused to be transmitted to a mobile terminal indicating that the mobile terminal is to perform periodic measurements in relation to a secondary uplink frequency. Following the performance of the periodic measurements by the mobile terminal, the method also includes receiving an indication of the periodic measurements in relation to the secondary uplink frequency that have been performed by the mobile terminal. Based on these periodic measurement results, a desired set of cells thta are involved in the uplink transmission may be maintained in the active set. This may involve adding a new cell in the active set and / or removing a cell from the active set. |