US 9,813,935 B2
State-driven secondary cell activation and deactivation
Ping Yu, Ottawa (CA); and Christian Skärby, Stockholm (SE)
Assigned to TELEFONAKTIEBOLAGET LM ERICSSON (PUBL), Stockholm (SE)
Filed by Telefonaktiebolaget LM Ericsson (Publ), Stockholm (SE)
Filed on Jul. 12, 2016, as Appl. No. 15/208,117.
Application 15/208,117 is a continuation of application No. 14/028,661, filed on Sep. 17, 2013, granted, now 9,414,384.
Prior Publication US 2016/0323769 A1, Nov. 3, 2016
Int. Cl. H04W 72/04 (2009.01); H04W 28/02 (2009.01); H04W 52/02 (2009.01); H04W 24/02 (2009.01); H04L 5/00 (2006.01); H04W 76/04 (2009.01)
CPC H04W 28/0221 (2013.01) [H04L 5/0032 (2013.01); H04L 5/0098 (2013.01); H04W 24/02 (2013.01); H04W 28/0236 (2013.01); H04W 52/0206 (2013.01); H04W 72/0453 (2013.01); H04W 76/048 (2013.01); Y02B 60/50 (2013.01)] 22 Claims
OG exemplary drawing
 
1. A method of selectively activating and deactivating secondary cells at a base station for use by a user equipment, UE, the method comprising:
determining whether an amount of data to be transmitted to the UE is greater than a first threshold;
responsive to determining that the amount of data to be transmitted to the UE is greater than the first threshold, determining whether a number of activated secondary cells is below a first activation threshold, the first activation threshold establishing a maximum number of secondary cells to be activated simultaneously;
if the number of activated secondary cells is below the first activation threshold, activating at least one deactivated secondary cell;
if the number of activated secondary cells is equal to or greater than the first activation threshold, refraining from activating at least one deactivated secondary cell;
determining whether the amount of data to be transmitted to the UE is below a second threshold;
responsive to determining that the amount of data to be transmitted to the UE is below the second threshold, determining whether the number of activated secondary cells is greater than a second activation threshold, the second activation threshold establishing a minimum number of secondary cells to be activated simultaneously;
if the number of activated secondary cells is greater than the second activation threshold, deactivating at least one activated secondary cell; and
if the number of activated secondary cells is equal to or below the second activation threshold, refraining from deactivating at least one activated secondary cell.