Media access control mechanism in a wireless device

1. A method comprising:

receiving, by a wireless device, one or more messages comprising configuration parameters for a first logical channel in a plurality of logical channels, wherein the configuration parameters indicate a first mapping restriction of the first logical channel to at least one first radio resource type of a plurality of radio resource types, the at least one first radio resource type indicating one of a licensed radio resource type or an unlicensed radio resource type;

receiving, by the wireless device, an uplink grant indicating radio resources of a radio resource type in the plurality of radio resource types;

restarting a first buffer status report (BSR) retransmission timer in response to the uplink grant meeting first criteria, wherein:

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; and

the first criteria comprises the radio resource type being of one of the at least one first radio resource type; and

triggering a BSR transmission in response to the first BSR retransmission timer expiring.

2. The method of claim 1 , further comprising restarting the first BSR retransmission timer in response to transmitting a BSR that comprises a report for a buffer of a first logical channel that triggered the BSR.

3. The method of claim 1 , further comprising not restarting a first buffer status report (BSR) retransmission timer in response to transmitting a BSR, when the BSR does not comprise a report for a buffer of a first logical channel that triggered the BSR.

4. The method of claim 1 , wherein the at least one first radio resource type indicates a cell type.

5. The method of claim 1 , wherein the mapping restriction is based, at least in part, on one or more quality of service (QoS) requirements of the logical channel.

6. The method of claim 5 , wherein a QoS requirement is based on a latency requirement of the logical channel.

7. The method of claim 1 , wherein the logical channel is configured with a priority and a prioritized bit rate (PBR).

8. The method of claim 1 , further comprising restarting a second BSR retransmission timer in response to the uplink grant meeting second criteria, wherein:

the second BSR retransmission timer is employed for triggering a BSR indicating an amount of data comprising data of a buffer of a second logical channel; and

the second criteria comprise the radio resource type being of at least one second radio resource type.

9. The method of claim 1 , wherein the at least one message comprises a parameter indicating a value for the first BSR retransmission timer.

10. A wireless device comprising:

one or more processors; and

memory storing instructions that, when executed by the one or more processors, cause the wireless device to:

receive one or more messages comprising configuration parameters for a first logical channel in a plurality of logical channels, wherein the configuration parameters indicate a first mapping restriction of the first logical channel to at least one first radio resource type of a plurality of radio resource types, the at least one first radio resource type indicating one of a licensed radio resource type or an unlicensed radio resource type;

receive an uplink grant indicating radio resources of a radio resource type in the plurality of radio resource types;

restarting a first buffer status report (BSR) retransmission timer in response to the uplink grant meeting first criteria, wherein:

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; and

the first criteria comprises the radio resource type being of one of the at least one first radio resource type; and

trigger a BSR transmission in response to the first BSR retransmission timer expiring.

11. The wireless device of claim 10 , wherein the instructions, when executed by the one or more processors, further cause the wireless device to restart the first BSR retransmission timer in response to transmitting a BSR that comprises a report for a buffer of a first logical channel that triggered the BSR.

12. The wireless device of claim 10 , wherein the instructions, when executed by the one or more processors, further cause the wireless device to not restart a first buffer status report (BSR) retransmission timer in response to transmitting a BSR, when the BSR does not comprise a report for a buffer of a first logical channel that triggered the BSR.

13. The wireless device of claim 10 , wherein the at least one first radio resource type indicates a cell type.

14. The wireless device of claim 10 , wherein the mapping restriction is based, at least in part, on one or more quality of service (QoS) requirements of the logical channel.

15. The wireless device of claim 14 , wherein a QoS requirement is based on a latency requirement of the logical channel.

16. The wireless device of claim 10 , wherein the logical channel is configured with a priority and a prioritized bit rate (PBR).

17. The wireless device of claim 10 , wherein the instructions, when executed by the one or more processors, further cause the wireless device to restart a second BSR retransmission timer in response to the uplink grant meeting second criteria, wherein:

the second BSR retransmission timer is employed for triggering a BSR indicating an amount of data comprising data of a buffer of a second logical channel; and

the second criteria comprise the radio resource type being of at least one second radio resource type.

18. The wireless device of claim 10 , wherein the at least one message comprises a parameter indicating a value for the first BSR retransmission timer.