Power control in a wireless device and wireless network
View Patent ↗A wireless device receives, in a first subframe, a first downlink control information (DCI) indicating first uplink resources in one or more subframes comprising a third subframe. The wireless device receives, in a second subframe different from the first subframe, a second DCI indicating second uplink resources of the third subframe. The wireless device transmits, in the third subframe, a transport block according to parameters of the most recently received first DCI or second DCI.
1. A method comprising:
receiving, by a wireless device, one or more radio resource control (RRC) messages comprising configuration parameters for a licensed assisted access (LAA) cell;
receiving, in a first subframe, a first downlink control information (DCI) indicating a first resource block assignment for the LAA cell, the first DCI:
being for a plurality of consecutive uplink subframes comprising a third subframe and a fourth subframe; and
comprising a field indicating a number of the plurality of consecutive uplink subframes;
receiving, in a second subframe different from the first subframe, a second DCI indicating a second resource block assignment for the third subframe;
transmitting, via one or more third resource blocks in the third subframe, one or more third transport blocks according to a resource block assignment of a most recently received one of the first DCI or the second DCI; and
transmitting, via one or more fourth resource blocks in the fourth subframe, one or more fourth transport blocks according to the first resource block assignment.
2. The method of claim 1 , wherein:
both the third subframe and the fourth subframe are after both the first subframe and the second subframe;
the first subframe is before or after the second subframe; and
the third subframe is before or after the fourth subframe.
3. The method of claim 1 , wherein the first DCI further comprises a transmit power control command.
4. The method of claim 1 , wherein the first DCI further comprises at least one of:
a modulation and coding scheme;
a hybrid automatic repeat request (HARQ) identifier;
a redundancy version (RV); or
a new data indicator (NDI).
5. The method of claim 1 , further comprising performing a listen before talk procedure indicating that a channel is clear for a starting subframe of the plurality of consecutive uplink subframes.
6. The method of claim 1 , wherein the one or more third transport blocks are associated with an asynchronous hybrid automatic repeat request (HARQ) process.
7. The method of claim 1 , wherein the number of the plurality of consecutive uplink subframes is less than a number of hybrid automatic repeat request (HARQ) processes supported by the wireless device.
8. The method of claim 1 , wherein the second DCI comprises at least one of:
a hybrid automatic repeat request (HARQ) identifier;
a redundancy version (RV); or
a new data indicator.
9. The method of claim 1 , wherein:
the configuration parameters comprise a first field comprising a first value; and
the number of the plurality of consecutive uplink subframes is less than the first value.
10. The method of claim 1 , wherein the one or more RRC messages further comprise plurality of consecutive uplink subframe allocation configuration parameters comprising a first field, the first field indicating an upper limit for the number of the plurality of consecutive uplink subframes.
11. 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 radio resource control (RRC) messages comprising configuration parameters for a licensed assisted access (LAA) cell;
receive, in a first subframe, a first downlink control information (DCI) indicating a first resource block assignment for the LAA cell, the first DCI:
being for a plurality of consecutive uplink subframes comprising a third subframe and a fourth subframe; and
comprising a field indicating the number of the plurality of consecutive uplink subframes;
receive, in a second subframe different from the first subframe, a second DCI indicating a second resource block assignment for the third subframe;
transmit, via one or more resource blocks in the third subframe, one or more third transport blocks according to a resource block assignment of a most recently received one of the first DCI or the second DCI; and
transmit, via one or more fourth resource blocks in the fourth subframe, one or more fourth transport blocks according to the first resource block assignment.
12. The wireless device of claim 11 , wherein:
both the third subframe and the fourth subframe are after both the first subframe and the second subframe;
the first subframe is before or after the second subframe; and
the third subframe is before or after the fourth subframe.
13. The wireless device of claim 11 , wherein the first DCI further comprises a transmit power control command.
14. The wireless device of claim 11 , wherein the first DCI further comprises at least one of:
a modulation and coding scheme;
a hybrid automatic repeat request (HARQ) identifier;
a redundancy version (RV); or
a new data indicator (NDI).
15. The wireless device of claim 11 , wherein the instructions, when executed by the one or more processors, cause the wireless device to perform a listen before talk procedure indicating that a channel is clear for a starting subframe of the plurality of consecutive uplink subframes.
16. The wireless device of claim 11 , wherein the one or more transport blocks are associated with an asynchronous hybrid automatic repeat request (HARQ) process.
17. The wireless device of claim 11 , wherein the number of the plurality of consecutive uplink subframes is less than a number of hybrid automatic repeat request (HARQ) processes supported by the wireless device.
18. A method comprising:
transmitting, by a base station, one or more radio resource control (RRC) messages comprising configuration parameters for a licensed assisted access (LAA) cell;
transmitting, in a first subframe, a first downlink control information (DCI) indicating a first resource block assignment for the LAA cell, the first DCI:
being for a plurality of consecutive uplink subframes comprising a third subframe and a fourth subframe; and
comprising a field indicating a number of the plurality of consecutive uplink subframes;
transmitting, in a second subframe different from the first subframe, a second DCI indicating a second resource block assignment for the third subframe;
receiving, via one or more third resource blocks in the third subframe, one or more third transport blocks according to a resource block assignment of a most recently transmitted one of the first DCI or the second DCI; and
receiving, via one or more fourth resource blocks in the fourth subframe, one or more fourth transport blocks according the first resource block assignment.
19. The method of claim 18 , wherein:
both the third subframe and the fourth subframe are after both the first subframe and the second subframe;
the first subframe is before or after the second subframe; and
the third subframe is before or after the fourth subframe.
20. The method of claim 18 , wherein the first DCI further comprises a transmit power control command.