IP Library › Granted Patent US 12684571
Granted Patent B2
US 12684571 · App. 17/817,212 · Granted Jul 14, 2026

Considerations for overlap between data and energy harvesting

Inventors: Ahmed Elshafie (San Diego, CA); Ahmed Attia Abotabl (San Diego, CA)
Assignee: QUALCOMM Incorporated
H04W72/1273H04L1/0003H04W72/23
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Quick Facts
Patent No.
US 12684571
App. No.
17/817,212
Granted
Jul 14, 2026
Kind
B2
Abstract

Certain aspects of the present disclosure provide techniques for of wireless communication by a user equipment (UE), generally including detecting a semi-persistently scheduled (SPS) physical downlink shared channel (PDSCH) occasion overlaps with a time period associated with energy harvesting (EH) and processing the SPS PDSCH occasion in a manner determined based on the overlap.

Claims (51)

1 . A method of wireless communication by a user equipment (UE), the method comprising:

detecting a semi-persistently scheduled (SPS) physical downlink shared channel (PDSCH) transmission occasion overlaps with a time period associated with energy harvesting (EH); and

processing the SPS PDSCH transmission occasion in a manner determined based on the overlap, wherein processing the SPS PDSCH transmission occasion in the manner determined based on the overlap comprises:

processing the SPS PDSCH transmission occasion that overlaps with the time period associated with EH using a first set of configuration parameters different than a second set of configuration parameters used for processing SPS PDSCH transmission occasions that do not overlap with the time period associated with EH,

processing the SPS PDSCH transmission occasion that overlaps with the time period associated with EH using a first modulation and coding scheme (MCS) that is lower than a second MCS used for processing the SPS PDSCH transmission occasions that do not overlap with time period associated with EH, or

processing the SPS PDSCH transmission occasion that overlaps with the time period associated with EH using a first power splitting factor different than a second power splitting factor used for processing the SPS PDSCH transmission occasions that do not overlap with the time period associated with EH.

2 . The method of claim 1 , wherein the time period associated with EH comprises a SPS EH occasion.

3 . The method of claim 1 , wherein processing the SPS PDSCH occasion in the manner determined based on the overlap comprises processing the SPS PDSCH occasion with the first set of configuration parameters.

4 . The method of claim 3 , wherein at least one of the first set of configuration parameters or the second set of configuration parameters comprises at least one of: a modulation and coding scheme (MCS), transmission port, transmission rank, power offset of a data channel demodulation reference signal (DMRS), time-domain resource allocation (TDRA), frequency-domain resource allocation (FDRA), or DMRS configuration.

5 . The method of claim 1 , wherein processing the SPS PDSCH occasion in the manner determined based on the overlap comprises processing the SPS PDSCH transmission occasion with the first MCS.

6 . The method of claim 5 , further comprising determining the first MCS based on an absolute MCS value or an offset MCS value relative to the second MCS.

7 . The method of claim 6 , wherein the absolute MCS value or offset MCS value is dynamically signaled or configured via radio resource control (RRC) signaling.

8 . The method of claim 1 , wherein processing the SPS PDSCH transmission occasion in the manner determined based on the overlap comprises discarding the EH signal while processing the SPS PDSCH transmission occasion.

9 . The method of claim 1 , wherein processing the SPS PDSCH transmission occasion in the manner determined based on the overlap comprises processing the SPS PDSCH transmission occasion using the first power splitting factor.

10 . The method of claim 1 , wherein the time period associated with EH comprises an EH time period scheduled via downlink control information (DCI).

11 . The method of claim 10 , wherein processing the SPS PDSCH transmission occasion in the manner determined based on the overlap comprises processing the SPS PDSCH transmission occasion with the MCS, and wherein the first MCS is indicated in the DCI.

12 . The method of claim 11 , wherein the SPS PDSCH transmission occasion is processed using the MCS indicated in the DCI only if there is sufficient time between the DCI and the SPS PDSCH transmission occasion.

13 . The method of claim 10 , wherein processing the SPS PDSCH transmission occasion in the manner determined based on the overlap comprises canceling the SPS PDSCH transmission occasion.

14 . The method of claim 13 , wherein the SPS PDSCH transmission occasion is canceled in response to an amount of the overlap being greater than a threshold amount.

15 . The method of claim 1 wherein the time period associated with EH comprises a time period that an EH circuit of the UE is active.

16 . The method of claim 15 , wherein processing the SPS PDSCH transmission occasion in the manner determined based on the overlap comprises processing the SPS PDSCH transmission occasion with the first MCS when the EH circuit is active and processing the SPS PDSCH transmission occasions that do not overlap with the time period associated with EH when the EH circuit is not active.

17 . The method of claim 15 , wherein the first MCS and second MCS are indicated via a downlink control information (DCI) that activates or reactivates SPS.

18 . The method of claim 15 , wherein the first MCS and second MCS are indicated via radio resource control (RRC) or medium access control (MAC) control element (CE) signaling.

19 . The method of claim 15 , wherein processing the SPS PDSCH transmission occasion in the manner determined based on the overlap comprises canceling the SPS PDSCH transmission occasion.

20 . A method of wireless communication by a network entity, the method comprising:

detecting a semi-persistently scheduled (SPS) physical downlink shared channel (PDSCH) transmission occasion for a user equipment (UE) overlaps with a time period associated with energy harvesting (EH); and

processing the SPS PDSCH transmission occasion in a manner determined based on the overlap, wherein processing the SPS PDSCH transmission occasion in the manner determined based on the overlap comprises:

processing the SPS PDSCH transmission occasion that overlaps with the time period associated with EH using a first set of configuration parameters different than a second set of configuration parameters used for processing SPS PDSCH transmission occasions that do not overlap with the time period associated with EH,

processing the SPS PDSCH transmission occasion that overlaps with the time period associated with EH using a first modulation and coding scheme (MCS) that is lower than a second MCS used for processing the SPS PDSCH transmission occasions that do not overlap with time period associated with EH, or

processing the SPS PDSCH transmission occasion that overlaps with the time period associated with EH using a first power splitting factor different than a second power splitting factor used for processing the SPS PDSCH transmission occasions that do not overlap with the time period associated with EH.

21 . The method of claim 20 , wherein the time period associated with EH comprises a SPS EH occasion.

22 . The method of claim 20 , wherein processing the SPS PDSCH transmission occasion in the manner determined based on the overlap comprises processing the SPS PDSCH transmission occasion with the first set of configuration parameters.

23 . The method of claim 22 , wherein at least one of the first set of configuration parameters or the second set of configuration parameters comprises at least one of: a modulation and coding scheme (MCS), transmission port, transmission rank, power offset of a data channel demodulation reference signal (DMRS), time-domain resource allocation (TDRA), frequency-domain resource allocation (FDRA), or DMRS configuration.

24 . The method of claim 20 , wherein processing the SPS PDSCH transmission occasion in the manner determined based on the overlap comprises transmitting a PDSCH in the SPS PDSCH transmission occasion using the first MCS.

25 . The method of claim 24 , further comprising signaling the UE an indication of the first MCS as an absolute MCS value or an offset MCS value relative to the second MCS.

26 . The method of claim 20 , wherein the time period associated with EH comprises an EH time period scheduled via downlink control information (DCI).

27 . A user equipment (UE) configured for wireless communication, the UE comprising:

a memory comprising processor-executable instructions; and

one or more processors configured to execute the processor-executable instructions and cause the UE to:

detect a semi-persistently scheduled (SPS) physical downlink shared channel (PDSCH) transmission occasion overlaps with a time period associated with energy harvesting (EH); and

process the SPS PDSCH transmission occasion in a manner determined based on the overlap, wherein processing the SPS PDSCH transmission occasion in the manner determined based on the overlap comprises:

processing the SPS PDSCH transmission occasion that overlaps with the time period associated with EH using a first set of configuration parameters different than a second set of configuration parameters used for processing SPS PDSCH transmission occasions that do not overlap with the time period associated with EH,

processing the SPS PDSCH transmission occasion that overlaps with the time period associated with EH using a first modulation and coding scheme (MCS) that is lower than a second MCS used for processing the SPS PDSCH transmission occasions that do not overlap with time period associated with EH, or

processing the SPS PDSCH transmission occasion that overlaps with the time period associated with EH using a first power splitting factor different than a second power splitting factor used for processing the SPS PDSCH transmission occasions that do not overlap with the time period associated with EH.

28 . A network entity configured for wireless communication, the network entity comprising:

a memory comprising processor-executable instructions; and

one or more processors configured to execute the processor-executable instructions and cause the network entity to:

detect a semi-persistently scheduled (SPS) physical downlink shared channel (PDSCH) transmission occasion for a user equipment (UE) overlaps with a time period associated with energy harvesting (EH); and

process the SPS PDSCH transmission in a manner determined based on the overlap, wherein processing the SPS PDSCH transmission occasion in the manner determined based on the overlap comprises:

processing the SPS PDSCH transmission occasion that overlaps with the time period associated with EH using a first set of configuration parameters different than a second set of configuration parameters used for processing SPS PDSCH transmission occasions that do not overlap with the time period associated with EH, processing the SPS PDSCH transmission occasion that overlaps with the time period associated with EH using a first modulation and coding scheme (MCS) that is lower than a second MCS used for processing the SPS PDSCH transmission occasions that do not overlap with time period associated with EH, or

processing the SPS PDSCH transmission occasion that overlaps with the time period associated with EH using a first power splitting factor different than a second power splitting factor used for processing the SPS PDSCH transmission occasions that do not overlap with the time period associated with EH.