Scheduling in license assisted access

1. A method in a network node, the method comprising:

determining a first uplink/downlink scheduling pattern for a first plurality of consecutive subframes based on a traffic pattern of data to transmit or receive;

transmitting the first uplink/downlink scheduling pattern to a wireless device;

transmitting or receiving at least one subframe of the first plurality of consecutive subframes to or from the wireless device according to the first uplink/downlink scheduling pattern;

determining the traffic pattern of data to transmit or receive has changed;

determining, based on the changed traffic pattern, a second uplink/downlink scheduling pattern for a second plurality of consecutive subframes, wherein the first plurality of consecutive subframes and the second plurality of consecutive subframes overlap in time by at least one shared subframe;

transmitting the second uplink/downlink scheduling pattern to the wireless device; and

transmitting or receiving the at least one shared subframe according to the second uplink/downlink scheduling pattern,

wherein the first uplink/downlink scheduling pattern comprises at least one of:

a set of subframes in the first plurality of subframes that the wireless device does not monitor for downlink; and

a set of subframes in the first plurality of subframes that the wireless device does monitor for downlink.

2. The method of claim 1 , wherein the first uplink/downlink scheduling pattern comprises:

a first value representing a number of downlink subframes in the first plurality of consecutive subframes; and

a second value representing a number of uplink subframes in the first plurality of consecutive subframes.

3. The method of claim 1 , wherein transmitting the first uplink/downlink scheduling pattern to the wireless device comprises transmitting the first uplink/downlink scheduling pattern in a long term evolution (LTE) physical downlink control channel (PDCCH) or enhanced physical downlink control channel (EPDCCH).

4. The method of claim 1 , wherein transmitting the first uplink/downlink scheduling pattern to the wireless device comprises transmitting the first uplink/downlink scheduling pattern in a LTE physical control format indicator channel (PCFICH).

5. The method of claim 1 , wherein the network node serves a first cell and the first uplink/downlink scheduling pattern applies to a second cell different from the first cell.

6. A method in a wireless device, the method comprising:

receiving, from a network node, a first uplink/downlink scheduling pattern for a first plurality of consecutive subframes;

receiving or transmitting at least one subframe according to the first uplink/downlink scheduling pattern;

receiving, from the network node, a second uplink/downlink scheduling pattern for a second plurality of consecutive subframes, wherein the first plurality of consecutive subframes and the second plurality of consecutive subframes overlap in time by at least one shared subframe; and

transmitting or receiving the at least one shared subframe according to the second uplink/downlink scheduling pattern,

wherein the first uplink/downlink scheduling pattern comprises at least one of:

a set of subframes in the first plurality of subframes that the wireless device does not monitor for downlink; and

a set of subframes in the first plurality of subframes that the wireless device does monitor for downlink.

7. The method of claim 6 , wherein the first uplink/downlink scheduling pattern comprises:

a first value representing a number of downlink subframes in the first plurality of consecutive subframes; and

a second value representing a number of uplink subframes in the first plurality of consecutive subframes.

8. The method of claim 6 , wherein receiving the first uplink/downlink scheduling pattern from the network node comprises receiving the first uplink/downlink scheduling pattern in a long term evolution (LTE) physical downlink control channel (PDCCH) or enhanced physical downlink control channel (EPDCCH).

9. The method of claim 6 , wherein receiving the first uplink/downlink scheduling pattern from the network node comprises receiving the first uplink/downlink scheduling pattern in a LTE physical control format indicator channel (PCFICH).

10. The method of claim 6 , wherein the network node serves a first cell and the first uplink/downlink scheduling pattern applies to a second cell different from the first cell.

11. A network node comprising a processor and a memory, the processor operable to:

determine a first uplink/downlink scheduling pattern for a first plurality of consecutive subframes based on a traffic pattern of data to transmit or receive;

transmit the first uplink/downlink scheduling pattern to a wireless device;

transmit or receive at least one subframe of the first plurality of consecutive subframes to or from the wireless device according to the first uplink/downlink scheduling pattern;

determine the traffic pattern of data to transmit or receive has changed;

determine, based on the changed traffic pattern, a second uplink/downlink scheduling pattern for a second plurality of consecutive subframes, wherein the first plurality of consecutive subframes and the second plurality of consecutive subframes overlap in time by at least one shared subframe;

transmit the second uplink/downlink scheduling pattern to the wireless device; and

transmit or receive the at least one shared subframe according to the second uplink/downlink scheduling pattern,

wherein the first uplink/downlink scheduling pattern comprises at least one of:

a set of subframes in the first plurality of subframes that the wireless device does not monitor for downlink; and

a set of subframes in the first plurality of subframes that the wireless device does monitor for downlink.

12. The network node of claim 11 , wherein the first uplink/downlink scheduling pattern comprises:

a first value representing a number of downlink subframes in the first plurality of consecutive subframes; and

a second value representing a number of uplink subframes in the first plurality of consecutive subframes.

13. The network node of claim 11 , wherein the processor is operable to transmit the first uplink/downlink scheduling pattern in a long term evolution (LTE) physical downlink control channel (PDCCH) or enhanced physical downlink control channel (EPDCCH).

14. The network node of claim 11 , wherein the processor is operable to transmit the first uplink/downlink scheduling pattern in a LTE physical control format indicator channel (PCFICH).

15. The network node of claim 11 , wherein the network node serves a first cell and the first uplink/downlink scheduling pattern applies to a second cell different from the first cell.

16. A wireless device comprising a processor and a memory, the processor operable to:

receive, from a network node, a first uplink/downlink scheduling pattern for a first plurality of consecutive subframes;

receive or transmit at least one subframe according to the first uplink/downlink scheduling pattern;

receive, from the network node, a second uplink/downlink scheduling pattern for a second plurality of consecutive subframes, wherein the first plurality of consecutive subframes and the second plurality of consecutive subframes overlap in time by at least one shared subframe; and

transmit or receive the at least one shared subframe according to the second uplink/downlink scheduling pattern,

wherein the first uplink/downlink scheduling pattern comprises at least one of:

a set of subframes in the first plurality of subframes that the wireless device does not monitor for downlink; and

a set of subframe in the first plurality of subframes that the wireless device does monitor for downlink.

17. The wireless device of claim 16 , wherein the first uplink/downlink scheduling pattern comprises:

a first value representing a number of downlink subframes in the first plurality of consecutive subframes; and

a second value representing a number of uplink subframes in the first plurality of consecutive subframes.

18. The wireless device of claim 16 , wherein the processor is operable to receive the first uplink/downlink scheduling pattern in a long term evolution (LTE) physical downlink control channel (PDCCH) or enhanced physical downlink control channel (EPDCCH).

19. The wireless device of claim 16 , wherein the processor is operable to receive the first uplink/downlink scheduling pattern in a LTE physical control format indicator channel (PCFICH).

20. The wireless device of claim 16 , wherein the network node serves a first cell and the first uplink/downlink scheduling pattern applies to a second cell different from the first cell.