Techniques for managing communications in a shared radio frequency spectrum band
Techniques are described for wireless communication. A first method includes receiving a semi-static partial subframe configuration and a corresponding partial subframe identifier; receiving a grant for a partial subframe, the grant identifying the partial subframe identifier; and receiving data scheduled for the partial subframe over a shared radio frequency spectrum band based at least in part on the semi-static partial subframe configuration. A second method includes monitoring a plurality of symbol periods for at least one channel reservation signal transmitted over a shared radio frequency spectrum band, where the at least one channel reservation signal is encoded based at least in part on each symbol period of the plurality of symbol periods; and receiving a downlink transmission over the shared radio frequency spectrum band, where the downlink transmission follows the plurality of channel reservation signals.
1. A method for wireless communication at a user equipment (UE), comprising:
receiving a semi-static partial subframe configuration and a corresponding partial subframe identifier, wherein the semi-static partial subframe configuration is associated with a partial subframe duration having a control portion and a data portion;
receiving a grant for a partial subframe, the grant identifying the partial subframe identifier; and
receiving data scheduled for the partial subframe over a shared radio frequency spectrum band based at least in part on the semi-static partial subframe configuration.
2. The method of claim 1 , further comprising:
receiving the semi-static partial subframe configuration in a radio resource control (RRC) message.
3. The method of claim 1 , wherein the semi-static partial subframe configuration comprises a resource block (RB) allocation type, or a RB allocation, or a transmission rank, or a modulation and coding scheme (MCS), or a transport block size (TBS) table, or a combination thereof.
4. The method of claim 1 , further comprising:
receiving a dynamic partial subframe configuration; and
receiving the data scheduled for the partial subframe based at least in part on the dynamic partial subframe configuration.
5. The method of claim 1 , wherein the semi-static partial subframe configuration comprises at least one of a time domain multiplexed (TDM) configuration or a frequency domain multiplexed (FDM) configuration.
6. The method of claim 1 , wherein the grant for the partial subframe comprises a hybrid automatic repeat request (HARQ) identifier (ID), or a retransmission index, or a new data indicator (NDI), or a combination thereof.
7. The method of claim 1 , wherein the grant is received over a dedicated radio frequency spectrum band.
8. The method of claim 1 , further comprising:
receiving data scheduled for a plurality of partial subframes over the shared radio frequency spectrum band based at least in part on the semi-static partial subframe configuration.
9. The method of claim 1 , further comprising:
receiving a retransmission of data initially transmitted in the partial subframe in at least one full subframe.
10. The method of claim 1 , wherein the semi-static partial subframe configuration is for a partial subframe occurring at a beginning of a subframe or at an end of a subframe.
11. The method of claim 1 , wherein the semi-static partial subframe configuration indicates a type of partial subframe to which the semi-static partial subframe configuration applies.
12. The method of claim 11 , wherein the partial subframe type is based at least in part on a length of partial subframe.
13. The method of claim 12 , further comprising:
determining whether the partial subframe is an uplink partial subframe or a downlink partial subframe based at least in part on the length of the partial subframe.
14. The method of claim 13 , further comprising, after determining whether the partial subframe is an uplink partial subframe or a downlink partial subframe:
adjusting at least one parameter of an initial or end partial subframe.
15. The method of claim 14 , wherein adjusting the at least one parameter comprises:
selecting from a list of predetermined configurations.
16. The method of claim 1 , further comprising:
receiving an indication of at least one of:
a number of partial subframes to which the semi-static partial subframe configuration applies;
a number of downlink bursts to which the semi-static partial subframe configuration applies;
a time duration to which the semi-static partial subframe configuration applies; or
an indication that the semi-static partial subframe configuration applies until an alternative indication is received.
17. An apparatus for wireless communication at a user equipment (UE), comprising:
a processor;
memory in electronic communication with the processor; and
the processor and memory configured to:
receive a semi-static partial subframe configuration and a corresponding partial subframe identifier, wherein the semi-static partial subframe configuration is associated with a partial subframe duration having a control portion and a data portion;
receive a grant for a partial subframe, the grant identifying the partial subframe identifier; and
receive data scheduled for the partial subframe over a shared radio frequency spectrum band based at least in part on the semi-static partial subframe configuration.
18. The apparatus of claim 17 , wherein the processor and memory are further configured to:
receive the semi-static partial subframe configuration in a radio resource control (RRC) message.
19. The apparatus of claim 17 , wherein the semi-static partial subframe configuration comprises a resource block (RB) allocation type, or a RB allocation, or a transmission rank, or a modulation and coding scheme (MCS), or a transport block size (TBS) table, or a combination thereof.
20. The apparatus of claim 17 , wherein the processor and memory are further configured to:
receive a dynamic configuration for communications according to partial subframes; and
receive the data scheduled for the partial subframe based at least in part on the dynamic partial subframe configuration.
21. The apparatus of claim 17 , wherein the semi-static partial subframe configuration comprises at least one of a time domain multiplexed (TDM) configuration or a frequency domain multiplexed (FDM) configuration.
22. The apparatus of claim 17 , wherein the grant for the partial subframe comprises a hybrid automatic repeat request (HARM) identifier (ID), or a retransmission index, or a new data indicator (NDI), or a combination thereof.
23. The apparatus of claim 17 , wherein the grant is received over a dedicated radio frequency spectrum band.
24. The apparatus of claim 17 , wherein the processor and memory are further configured to:
receive data scheduled for a plurality of partial subframes over the shared radio frequency spectrum band based at least in part on the semi-static partial subframe configuration.
25. The apparatus of claim 17 , wherein the processor and memory are further configured to:
receive a retransmission of data initially transmitted in the partial subframe in at least one full subframe.
26. The apparatus of claim 17 , wherein the semi-static partial subframe configuration is for a partial subframe occurring at a beginning of a subframe or at an end of a subframe.
27. The apparatus of claim 17 , wherein the semi-static partial subframe configuration indicates a type of partial subframe to which the semi-static partial subframe configuration applies.
28. The apparatus of claim 27 , wherein the type of partial subframe is based at least in part on a length of partial subframe.
29. An apparatus for wireless communication at a user equipment (UE), comprising:
means for receiving a semi-static partial subframe configuration and a corresponding partial subframe identifier, wherein the semi-static partial subframe configuration is associated with a partial subframe duration having a control portion and a data portion;
means for receiving a grant for a partial subframe, the grant identifying the partial subframe identifier; and
means for receiving data scheduled for the partial subframe over a shared radio frequency spectrum band based at least in part on the semi-static partial subframe configuration.
30. A non-transitory computer readable medium storing computer-executable code for wireless communication, the code comprising instructions executable by a processor to:
receive a semi-static partial subframe configuration and a corresponding partial subframe identifier, wherein the semi-static partial subframe configuration is associated with a partial subframe duration having a control portion and a data portion;
receive a grant for a partial subframe, the grant identifying the partial subframe identifier; and
receive data scheduled for the partial subframe over a shared radio frequency spectrum band based at least in part on the semi-static partial subframe configuration.