Patent ID: 8755318

Claim:
A method for baseband layer operation of a wireless user equipment (UE) device, the method comprising: establishing a connection with a network via a wireless link with a first cell; receiving uplink data from an application layer in the UE, wherein the uplink data comprises data to be transmitted to the network via the wireless link; storing the uplink data in a buffer; receiving a downlink grant via the wireless link; receiving downlink data via the wireless link during the downlink grant; transmitting an uplink scheduling request via the wireless link in response to receiving the uplink data and receiving the downlink grant; receiving an uplink grant via the wireless link in response to transmitting the uplink scheduling request; transmitting the buffered uplink data via the wireless link during the uplink grant; wherein the uplink data is received while the UE is in an inactive state as part of a discontinuous reception mode, wherein storing the uplink data in the buffer until the downlink grant is received prevents the UE from re-entering an active state until the downlink grant is received.