US Patent 10218558 Media access control mechanism in a wireless device

A wireless device may receive one or more messages comprising configuration parameters for a first logical channel in a plurality of logical channels. The configuration parameters indicate a first mapping restriction of the first logical channel to at least one first radio resource types in a plurality of radio resource types. The wireless device receives an uplink grant indicating radio resources of a radio resource type in the plurality of radio resource types. The wireless device restart a first buffer status report (BSR) retransmission timer in response to the uplink grant meeting first criteria. The first BSR retransmission timer is employed for triggering a BSR indicating an amount of data comprising data of a buffer of the first logical channel. The first criteria comprise the radio resource type being of one of the at least one first radio resource type. The wireless device triggers a BSR transmission in response to the first BSR retransmission timer expiring.