Multi-subframe grant with scheduling of both data and control channels

1. A method implemented in a wireless device, comprising:

receiving an uplink grant from a network node indicating to the wireless device at least one data subframe and at least one control subframe and comprising a request for a channel state information (CSI) report, wherein the at least one data subframe is one where the wireless device is scheduled to transmit a channel for carrying a data stream and optional control data, and the at least one control subframe is one where the wireless device is scheduled to transmit a channel for carrying control data only; and

transmitting in at least one of the at least one data subframe and the at least one control subframe indicated by the uplink grant,

wherein the uplink grant comprises grant information describing a sequence composed of data subframes and control subframes, each subframe in the sequence being associated with two independently assignable values in the grant information, the first of which being the value indicating whether the subframe is a data subframe or a control subframe, and the second of which being the value indicating whether to include in the subframe a time gap for accommodating a listen-before-talk procedure.

2. The method of claim 1 , wherein the grant information indicates for each subframe in the sequence whether it is a data subframe or a control subframe.

3. The method of claim 1 , wherein each subframe in the sequence is associated with a value in the grant information indicating whether the subframe is a data subframe or a control subframe.

4. The method of claim 1 , further comprising:

receiving on a separate control channel an indication whether to include in the subframe the time gap for accommodating the listen-before-talk procedure.

5. The method of claim 4 , wherein the separate control channel comprises a C-physical uplink control channel (C-PUCCH).

6. The method of claim 1 , wherein the sequence of data subframes and control subframes is implicitly described by the grant information.

7. The method of claim 6 , wherein the implicit description of the sequence is based on an agreement as to the location of a control subframe relative to the location of a data subframe or a range of data subframes.

8. The method of claim 7 , wherein the implicit description of the sequence is based on an agreement that a contiguous range of subframes is described in terms of a start and end of the contiguous range.

9. The method of claim 1 , wherein the sequence described by the grant information begins a predetermined number of subframes after a subframe containing the uplink grant.

10. The method of claim 1 , wherein the uplink grant comprises activation information indicating to the wireless device whether a predefined transmission opportunity is a control subframe.

11. The method of claim 10 , wherein the predefined transmission opportunity is indicated in advance by signaling received on a control channel common to a plurality of wireless devices.

12. The method of claim 11 , wherein the control channel common to the plurality of wireless devices is cell-specific.

13. The method of claim 1 , wherein the wireless device is adapted for multicarrier operation and the uplink grant relates to contemporaneous transmissions on multiple uplink carriers.

14. The method of claim 13 , wherein the uplink grant contains multicarrier information indicating for each uplink carrier a total length of a sequence composed of data subframes and control subframes on that uplink carrier.

15. The method of claim 1 , further comprising:

initially transmitting a scheduling request to the network node.

16. The method of claim 1 , wherein the uplink grant is contained in one subframe.

17. The method of claim 1 , wherein the uplink grant comprises, in addition to the indication of at least one data subframe and at least one control subframe and the request for the channel state information (CSI) report, one or more of the following:

resource/interlace assignment and frequency hopping flag;

carrier indicator for cross-carrier scheduling;

Modulation and Coding Scheme (MCS);

New Data Indicator (NDI);

hybrid automatic retransmission request (HARQ) information and Redundancy Version (RV);

power control command for scheduled PUSCH;

cyclic shift for uplink demodulation reference signal (DMRS);

flag bits or bit sequences to configure subframes with the time gap for accommodating the listen-before-talk procedure;

request for transmission of an aperiodic channel quality indicator (CQI) report or aperiodic sounding reference signal (SRS) transmission.

18. The method of claim 1 , wherein the uplink grant comprises, in addition to the indication of at least one data subframe and at least one control subframe and the request for the channel state information (CSI) report, a request for hybrid automatic retransmission request (HARQ) information.

19. The method of claim 1 , wherein the at least one data subframe and the at least one control subframe are to be transmitted on a listen-before-talk-based carrier, such as unlicensed spectrum.

20. The method of claim 1 , wherein the at least one data subframe is used to transmit a shared channel.

21. The method of claim 1 , wherein the at least one control subframe is used to transmit any of a physical uplink control channel (PUCCH) or extended PUCCH (ePUCCH) as specified in 3 GPP LTE.

22. The method of claim 1 , wherein the uplink grant is transmitted on a physical downlink control channel (PDCCH) as specified in 3 GPP LTE.

23. The method of claim 1 , wherein the sequence composed of data subframes and control subframes comprises four total subframes.

24. The method of claim 23 , wherein the sequence composed of data subframes and control subframes comprises three data subframes and one control subframe.

25. The method of claim 1 , wherein the sequence composed of data subframes and control subframes comprises eight or ten total subframes.

26. A wireless device comprising:

a receiver;

a transmitter;

at least one processor; and

a memory storing instructions executable by the at least one processor for:

receiving, using the receiver, an uplink grant from a network node indicating to the wireless device at least one data subframe and at least one control subframe and comprising a request for a channel state information (CS I) report, wherein the at least one data subframe is one where the wireless device is scheduled to transmit a channel for carrying a data stream and optional control data, and the at least one control subframe is one where the wireless device is scheduled to transmit a channel for carrying control data only; and

transmitting, using the transmitter, in at least one of the at least one data subframe and the at least one control subframe indicated by the uplink grant,

wherein the uplink grant comprises grant information describing a sequence composed of data subframes and control subframes, each subframe in the sequence being associated with two independently assignable values in the grant information, the first of which being the value indicating whether the subframe is a data subframe or a control subframe, and the second of which being the value indicating whether to include in the subframe a time gap for accommodating a listen-before-talk procedure.

27. A network node comprising a receiver, a transmitter, at least one processor and a memory storing instructions executable by the at least one processor for:

transmitting, using the transmitter, an uplink grant indicating to a wireless device at least one data subframe and at least one control subframe and comprising a request for a channel state information (CSI) report, wherein the at least one data subframe is one where the wireless device is scheduled to transmit a channel for carrying a data stream and optional control data, and the at least one control subframe is one where the wireless device is scheduled to transmit a channel for carrying control data only; and

receiving, using the receiver, from a wireless device having received the uplink grant, transmissions from the wireless device in the at least one data subframe and the at least one control subframe indicated by the uplink grant,

wherein the uplink grant comprises grant information describing a sequence composed of data subframes and control subframes, each subframe in the sequence being associated with two independently assignable values in the grant information, the first of which being the value indicating whether the subframe is a data subframe or a control subframe, and the second of which being the value indicating whether to include in the subframe a time gap for accommodating a listen-before-talk procedure.