Advanced scheduler mechanism for downlink frequency division duplex scheduling instances when sounding reference signal transmitter switching is in progress
Methods, systems, and a non-transitory computer-readable medium for providing advanced scheduling for downlink frequency division duplex (FDD) resources when sounding reference signal (SRS) transmitter switching is in progress are provided. Initially, the node receives an indication that the user equipment (UE) is sharing at least one antenna between FDD and time division duplex (TDD). The node determines the SRS periodicity for the UE. Based on the SRS periodicity, the node provides advance scheduling for downlink FDD resources when SRS transmitter switching is in progress for an FDD receive slot of the at least one antenna. For example, the node may provide downlink FDD resources to other UEs. Additionally or alternatively, the node may blank the corresponding FDD receive slots of the at least one antenna.
1 . A method comprising:
receiving an indication, at a node, that a first user equipment (UE) is sharing at least one antenna between frequency division duplex (FDD) and time division duplex (TDD);
determining, at the node, a sounding reference signal (SRS) periodicity for the first UE and a second UE; and
based on the SRS periodicity, providing, at the node, advanced scheduling for downlink FDD resources when SRS transmitter switching is in progress for an FDD receive slot of the at least one antenna, wherein the advanced scheduling comprises providing the downlink FDD resources intended for the FDD receive slot to the second UE that does not have SRS transmitter switching in progress.
2 . The method of claim 1 , wherein the node provides the advanced scheduling when the node determines the first UE will send the SRS signal.
3 . The method of claim 1 , wherein the advanced scheduling blanks the corresponding FDD receive slot.
4 . The method of claim 1 , wherein the indication is communicated to the node in a radio resource control signal.
5 . The method of claim 1 , further comprising not increasing, at the node, the SRS periodicity.
6 . The method of claim 1 , further comprising, determining, at the node, other UEs that do not have SRS transmitter switching in progress.
7 . The method of claim 1 , wherein the first UE is sharing the at least one antenna between FDD and TDD at the hardware level of the UE.
8 . One or more non-transitory computer-readable media having computer-executable instructions embodied thereon that, when executed by at least one computing device, cause the computing device to perform operations, the operations comprising:
receiving an indication, at a node, that a first user equipment (UE) is sharing at least one antenna between frequency division duplex (FDD) and time division duplex (TDD);
determining, at the node, a sounding reference signal (SRS) periodicity for the first UE and a second UE; and
based on the SRS periodicity, providing, at the node, advanced scheduling for downlink FDD resources when SRS transmitter switching is in progress for an FDD receive slot of the at least one antenna, wherein the advanced scheduling comprises providing the downlink FDD resources intended for the FDD receive slot to the second UE that does not have SRS transmitter switching in progress.
9 . The media of claim 8 , wherein the node provides the advanced scheduling when the node determines the first UE will send the SRS signal.
10 . The method of claim 8 , wherein the advanced scheduling blanks the corresponding FDD receive slot.
11 . The media of claim 8 , wherein the indication is communicated to the node in a radio resource control signal.
12 . The media of claim 8 , further comprising not increasing, at the node, the SRS periodicity.
13 . The media of claim 8 , further comprising, determining, at the node, other UEs that do not have SRS transmitter switching in progress.
14 . The media of claim 8 , wherein the first UE is sharing the at least one antenna between FDD and TDD at the hardware level of the UE.
15 . A system comprising:
user equipment (UE); and
a node configured to wirelessly communicate with the UE, wherein the node is configured to:
receive an indication that the user equipment (UE) is sharing at least one antenna between frequency division duplex (FDD) and time division duplex (TDD);
determine a sounding reference signal (SRS) periodicity for the UE and a second UE; and
based on the SRS periodicity, provide advanced scheduling for downlink FDD resources when SRS transmitter switching is in progress for an FDD receive slot of the at least one antenna, wherein the advanced scheduling comprises providing the downlink FDD resources intended for the FDD receive slot to the second UE that does not have SRS transmitter switching in progress.
16 . The system of claim 15 , wherein the node provides the advanced scheduling when the node determines the first UE will send the SRS signal.
17 . The system of claim 15 , wherein the advanced scheduling blanks the corresponding FDD receive slot.
18 . The system of claim 15 , wherein the indication is communicated to the node in a radio resource control signal.
19 . The system of claim 15 , further comprising not increasing, at the node, the SRS periodicity.
20 . The system of claim 15 , further comprising, determining, at the node, other UEs that do not have SRS transmitter switching in progress.