HARQ process for cells configured for multiple configured uplink grants

1. A method performed by a wireless device for a Hybrid Automatic Repeat Request, HARQ, process in a cell configurable for multiple configured uplink grants, the method comprising:

receiving an uplink grant comprising a HARQ process Identifier, ID;

determining that a HARQ process associated with the HARQ process ID is configured for a configured uplink grant based on the HARQ process ID, a HARQ process ID offset, and a number of HARQ processes for a configured grant configuration, wherein the HARQ process ID is greater than or equal to the HARQ process ID offset and less than a sum of the HARQ process ID offset and the number of HARQ processes for the configured grant configuration; and

starting or restarting a configured grant timer for the HARQ process.

2. The method of claim 1 , wherein the HARQ process ID is associated with a grant configuration of the configured uplink grant.

3. The method of claim 1 , wherein the HARQ process ID for the configured uplink grant is determined according to:

HARQ Process ID=[floor(CURRENT_symbol/periodicity)]modulo nrofHARQ-Processes+harq-procID-offset,

where CURRENT_symbol is a symbol index of a data transmission for the uplink grant, periodicity is a periodicity of the uplink grant, nrofHARQ-Processes is a number of HARQ processes for configured grants, and harq-procID-offset is the HARQ process ID offset.

4. The method of claim 3 , wherein the harq-procID-offset and the nrofHARQ-Processes for the uplink grant is received by one or more Radio Resource Control, RRC, messages, one or more Downlink Control Information, DCI, messages, or a combination of one or more RRC messages and one or more DCI messages.

5. The method of claim 1 , further comprising transmitting uplink data in accordance with the uplink grant.

6. The method of claim 5 , wherein the uplink data comprises the HARQ process ID offset.

7. A method performed by a wireless device for transmitting uplink data using a Hybrid Automatic Repeat Request, HARQ, process, the method comprising:

receiving a first uplink grant associated with a first HARQ process Identifier, ID;

determining that a first HARQ process is configured for a first configured uplink grant based on the HARQ process ID, a HARQ process ID offset, and a number of HARQ processes for a configured grant configuration, wherein the HARQ process ID is greater than or equal to the HARQ process ID offset and less than a sum of the HARQ process ID offset and the number of HARQ processes for configured grant configuration; and

setting a first configured grant timer for the first uplink grant in accordance with the first HARQ process.

8. The method of claim 7 , wherein:

the first HARQ process is identified by the first HARQ process ID; and

the first HARQ process ID is determined according to:

HARQ Process ID=[floor(CURRENT_symbol/periodicity)]modulo nrofHARQ-Processes+harq-procID-offset,

where CURRENT_symbol is a symbol index of a data transmission for the uplink grant, periodicity is a periodicity of the uplink grant, nrofHARQ-Processes is a number of HARQ processes for configured grants, and harq-procID-offset is the first HARQ process ID offset.

9. The method of claim 7 , further comprising:

receiving a second uplink grant associated with a second HARQ process ID;

determining that a second HARQ process associated with the second HARQ process ID is configured for a second configured uplink grant based on a second HARQ process ID offset; and

setting a second configured grant timer for the second uplink grant in accordance with the second HARQ process.

10. A method performed by a base station for allocating uplink grants for multiple grant configurations, the method comprising:

configuring a first uplink grant for a first traffic flow;

configuring a second uplink grant for a second traffic flow;

setting a first Hybrid Automatic Repeat Request, HARQ, process Identifier, ID, offset for the first uplink grant, the first HARQ process ID offset corresponding to a first HARQ process ID;

setting a second HARQ process ID offset for the second uplink grant; and

providing the first HARQ process ID offset to a first User Equipment, UE, associated with the first traffic flow.

11. The method of claim 10 , further comprising providing the second HARQ process ID offset to the first UE.

12. The method of claim 10 , further comprising providing the second HARQ process ID offset to a second UE associated with the second traffic flow.

13. The method of claim 10 , further comprising:

deactivating the second uplink grant;

resetting the first HARQ process ID offset in response to deactivating the second uplink grant.

14. The method of claim 13 , further comprising updating the number of HARQ processes configured for configured grant in response to deactivating the second uplink grant.

15. The method of claim 10 , wherein the first HARQ process ID offset is provided through a Radio Resource Control, RRC, message.

16. The method of claim 10 , wherein the first HARQ process ID offset is provided through a Downlink Control Information, DCI, message.

17. A wireless device for configuring a Hybrid Automatic Repeat Request, HARQ, process in a cell configurable for multiple uplink grants, the wireless device adapted to:

receive an uplink grant comprising a HARQ process Identifier, ID;

determine that a HARQ process associated with the HARQ process ID is configured for a configured uplink grant based on the HARQ process ID, a HARQ process ID offset, and a number of HARQ processes for a configured grant configuration, wherein the HARQ process ID is greater than or equal to the HARQ process ID offset and less than a sum of the HARQ process ID offset and the number of HARQ processes for the configured grant configuration; and

start or restart a configured grant timer for the HARQ process.

18. The wireless device of claim 17 comprising processing circuitry configured to cause the wireless device to:

receive the uplink grant comprising the HARQ process ID; and

start or restart the configured grant timer for the HARQ process.

19. A base station for allocating uplink grants for multiple grant configurations, the base station adapted:

configure a first uplink grant for a first traffic flow;

configure a second uplink grant for a second traffic flow;

set a first Hybrid Automatic Repeat Request, HARQ, process Identifier, ID, offset for the first uplink grant, the first HARQ process ID offset corresponding to a first HARQ process ID;

set a second HARQ process ID offset for the second uplink grant; and

provide the first HARQ process ID offset to a first User Equipment, UE, associated with the first traffic flow;

determining a number of HARQ processes configured for configured grant; and

providing the number of HARQ processes configured for configured grant to the first UE.