Uplink resource allocation for unlicensed cells

1. A method comprising:

receiving, by a wireless device, configuration parameters of an unlicensed cell for uplink transmissions of data of logical channels, wherein each of the logical channels is associated with:

a logical channel priority; and

a quality of service indicator;

receiving an uplink grant, for the unlicensed cell, indicating uplink resources and a type of listen-before-talk (LBT);

allocating first uplink resources of the uplink resources for first data of a first logical channel, of the logical channels, with a first LBT priority number corresponding to a first quality of service indicator for the first logical channel;

allocating remaining uplink resources of the uplink resources for second data of a second logical channel, of the logical channels, with a second LBT priority number lower than the first LBT priority number;

performing an LBT procedure based on the type of LBT; and

transmitting the first data and the second data via the uplink resources.

2. The method of claim 1 , wherein the configuration parameters indicate that the first logical channel and the second logical channel are allowed to be transmitted on the unlicensed cell.

3. The method of claim 1 , wherein the allocating the remaining uplink resources occurs after one or more buffers associated with the first logical channel, are empty.

4. The method of claim 1 , further comprising constructing one or more transport blocks comprising the first data and the second data.

5. The method of claim 1 , wherein the performing the LBT procedure occurs before the transmitting.

6. The method of claim 1 , wherein the allocating the first uplink resources comprises performing a logical channel prioritization procedure.

7. The method of claim 1 , wherein the allocating the remaining uplink resources comprises performing a logical channel prioritization procedure.

8. 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 configuration parameters of an unlicensed cell for uplink transmissions of data of logical channels, wherein each of the logical channels is associated with:

a logical channel priority; and

a quality of service indicator;

receive an uplink grant, for the unlicensed cell, indicating uplink resources and a type of listen-before-talk (LBT);

allocate first uplink resources of the uplink resources for first data of a first logical channel, of the logical channels, with a first LBT priority number corresponding to a first quality of service indicator for the first logical channel;

allocate remaining uplink resources of the uplink resources for second data of a second logical channel, of the logical channels, with a second LBT priority number lower than the first LBT priority number;

perform an LBT procedure based on the type of LBT; and

transmit the first data and the second data via the uplink resources.

9. The wireless device of claim 8 , wherein the configuration parameters indicate that the first logical channel and the second logical channel are allowed to be transmitted on the unlicensed cell.

10. The wireless device of claim 8 , wherein the allocating the remaining uplink resources occurs after one or more buffers, associated with the first logical channel, are empty.

11. The wireless device of claim 8 , wherein the instructions further cause the wireless device to construct one or more transport blocks comprising the first data and the second data.

12. The wireless device of claim 8 , wherein the performing the LBT procedure occurs before the transmitting.

13. The wireless device of claim 8 , wherein the allocating the first uplink resources comprises performing a logical channel prioritization procedure.

14. A base station comprising:

one or more processors; and

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

transmit, to a wireless device, configuration parameters of an unlicensed cell for uplink transmissions of data of logical channels, wherein each of the logical channels is associated with:

a logical channel priority; and

a quality of service indicator;

transmit, to the wireless device, an uplink grant, for the unlicensed cell, indicating uplink resources and a type of listen-before-talk (LBT), wherein:

first uplink resources, of the uplink resources, are allocated for first data of a first logical channel, of the logical channels, with a first LBT priority number corresponding to a first quality of service indicator for the first logical channel; and

remaining uplink resources, of the uplink resources, are allocated for second data of a second logical channel, of the logical channels, with a second LBT priority number lower than the first LBT priority number; and

receive, from the wireless device on the unlicensed cell and based on the type of LBT, the first data and the second data via the uplink resources.

15. The base station of claim 14 , wherein the configuration parameters indicate that the first logical channel and the second logical channel are allowed to be transmitted on the unlicensed cell.

16. The base station of claim 14 , wherein the remaining uplink resources are allocated after one or more buffers, associated with the first logical channel, are empty.

17. The base station of claim 14 , wherein the instructions further cause the base station to perform an LBT procedure based on the type of LBT indicated in the uplink grant.

18. The base station of claim 17 , wherein the performing the LBT procedure occurs before the transmitting the uplink grant.

19. The base station of claim 14 , wherein the first uplink resources are allocated using a logical channel prioritization procedure.

20. The base station of claim 14 , wherein the remaining uplink resources are allocated using a logical channel prioritization procedure.