Patent ID: 8761113

Claim:
A method implemented in a user equipment (UE) configured with multiple carriers, the method comprising: determining, by the UE, whether a first condition is met on a carrier of the multiple carriers, the first condition indicating that transmission data on the carrier reaches maximum transmission data allowed by a current service grant (SG) on the carrier; determining, by the UE, whether a second condition is met on the carrier, the second condition indicating that the UE has enough transmission power available to improve a data transmission rate on the carrier; determining, by the UE, whether a third condition is met, the third condition indicating that the carrier together with at least one of other carriers from the multiple carriers, with a product of the current SG and a ratio of active processes to a total number of processes on the carrier plus a product of a current SG and a ratio of active processes to a total number of processes on each of the at least one of the other carriers, are incapable of finishing transmission of total buffer status data in a configured time period; and determining, by the UE, that resource allocated to the UE on the carrier is insufficient in a situation where the first, second, and third conditions are met.