Patent Description:
<CIT> relates to techniques and apparatuses for temporary modification of periodic grants. In some aspects, a wireless communication device such as a user equipment may receive an indicator associated with a periodic grant configuration, wherein the indicator identifies a release of a subsequent resource allocation of the one or more processors; and/or skip at least one communication period for traffic associated with the subsequent resource allocation of the one or more processors based at least in part on receiving the indicator. Numerous other aspects are provided.

<CIT> relates generally to scheduling in a communications system, and more particularly, to systems and methods for performing infrequent dense resource allocations. Claim <NUM> thereof features a method for performing dense resource allocations for a User Equipment (UE) (<NUM>) using semi-persistent scheduling (SPS), the method performed at a base station (<NUM>) and comprising: generating (<NUM>) an SPS configuration to include a short cycle and a long cycle, wherein the short cycle defines a repetition interval of multiple SPS resource allocations, and the long cycle defines when the short cycle is active; and signaling (<NUM>) the SPS configuration to the UE to allocate the multiple SPS resources to the UE (<NUM>).

The<NPL>, discusses whether UL skipping for SPS is configurable or not. In addition, said draft presents a need of multiple SPS in consideration of multiple TTI lengths/numerologies. The proposals are: Observation: There is no harm in skipping uplink transmission in SPS even when SPS interval is larger than <NUM> subframes. Proposal <NUM>: In NR, when the UE is configured with SPS, the UE should always skip SPS grant if there is no data to transmit, i.e., Skipping SPS grant is mandated in NR regardless of SPS periodicity. Proposal <NUM>: In NR, there is restriction in use of SPS resource depending on TIT length of SPS resource and logical channel. Proposal <NUM>: In NR, multiple SPS configuration needs to be supported in order to support different services simultaneously.

The scope of protection of the present invention is defined in the independent claims. Optional variants are defined in the independent claims.

In some aspects, a method of wireless communication, performed by a user equipment (UE), is described, as defined in claim <NUM>.

In some aspects, a method of wireless communication, performed by a base station, is described, as defined in claim <NUM>.

In some aspects, a UE for wireless communication is described, as defined in claim <NUM>.

In some aspects, a base station for wireless communication is described, as defined in claim <NUM>.

In some aspects, a computer program for wireless communication is described, as defined in claim <NUM>.

Controller/processor <NUM> of base station <NUM>, controller/processor <NUM> of UE <NUM>, and/or any other component(s) of <FIG> may perform one or more techniques associated with UE feedback reduction for semi-persistent scheduling (SPS), as described in more detail elsewhere herein. For example, controller/processor <NUM> of base station <NUM>, controller/processor <NUM> of UE <NUM>, and/or any other component(s) of <FIG> may perform or direct operations of, for example, process <NUM> of <FIG>, process <NUM> of <FIG>, and/or other processes as described herein. Memories <NUM> and <NUM> may store data and program codes for base station <NUM> and UE <NUM>, respectively. In some aspects, memory <NUM> and/or memory <NUM> may include a non-transitory computer-readable medium storing one or more instructions (e.g., code and/or program code) for wireless communication. For example, the one or more instructions, when executed (e.g., directly, or after compiling, converting, and/or interpreting) by one or more processors of the base station <NUM> and/or the UE <NUM>, may cause the one or more processors, the UE <NUM>, and/or the base station <NUM> to perform or direct operations of, for example, process <NUM> of <FIG>, process <NUM> of <FIG>, and/or other processes as described herein. In some aspects, executing instructions may include running the instructions, converting the instructions, compiling the instructions, and/or interpreting the instructions, among other examples.

In some aspects, UE <NUM> may include means for receiving, from a base station, an SPS skipping indicator that indicates a set of SPS occasions, of an SPS communication, to be skipped, wherein the set of SPS occasions to be skipped comprises at least one SPS occasion that will not include a physical downlink shared channel (PDSCH) transmission, means for ignoring the at least one SPS occasion of the set of SPS occasions by not transmitting a feedback message associated with the at least one SPS occasion, and/or the like. In some aspects, such means may include one or more components of UE <NUM> described in connection with <FIG>, such as controller/processor <NUM>, transmit processor <NUM>, TX MIMO processor <NUM>, MOD <NUM>, antenna <NUM>, DEMOD <NUM>, MIMO detector <NUM>, receive processor <NUM>, and/or the like.

In some aspects, base station <NUM> may include means for transmitting, to a UE, an SPS skipping indicator that indicates a set of SPS occasions, of an SPS communication, to be skipped, wherein the set of SPS occasions to be skipped comprises at least one SPS occasion that will not include a PDSCH transmission, means for transmitting the SPS communication, and/or the like. In some aspects, such means may include one or more components of base station <NUM> described in connection with <FIG>, such as antenna <NUM>, DEMOD <NUM>, MIMO detector <NUM>, receive processor <NUM>, controller/processor <NUM>, transmit processor <NUM>, TX MIMO processor <NUM>, MOD <NUM>, antenna <NUM>, and/or the like.

<FIG> is a diagram illustrating an example <NUM> of an SPS configuration, in accordance with various aspects of the present disclosure. As shown, a base station <NUM> and a UE <NUM> may communicate with one another.

As shown by reference number <NUM>, a base station <NUM> transmits an SPS configuration to a UE <NUM> to configure an SPS communication, which includes a set of SPS occasions <NUM> (shown as "SPS <NUM>," "SPS <NUM>," "SPS <NUM>," and "SPS <NUM>") for the UE <NUM>. SPS may be used to schedule a set of downlink transmissions (referred to as an SPS communication), each downlink transmission corresponding to an SPS occasion of a set of SPS occasions, for the UE <NUM> without requiring individual downlink grants (e.g., in DCI) for each downlink transmission, thereby conserving signaling overhead. For example, an SPS configuration may indicate a set of resources for the set of SPS occasions, such as time resources (e.g., according to a configured periodicity and/or time offset), frequency resources, physical resource blocks (PRBs), and/or the like. Additionally, or alternatively, the SPS configuration may indicate a set of transmission parameters for the set of SPS occasions, such as a modulation and coding scheme (MCS), a resource allocation, a transport block (TB) size, a beam, a transmission configuration indication (TCI) state, and/or the like. In some aspects, a base station <NUM> may transmit activation DCI <NUM> to the UE <NUM> to activate an SPS configuration. Upon receiving the activation DCI <NUM>, the UE <NUM> may begin monitoring for SPS transmissions scheduled according to the SPS configuration.

As shown by reference <NUM>, the UE <NUM> transmits feedback messages to the base station <NUM> based at least in part on each SPS occasion of the SPS configuration <NUM>. A feedback message may include an acknowledgment (shown as "A" and interchangeably referred to as "ACK"), a negative acknowledgment (shown as "N" and interchangeably referred to as "NACK"), and/or the like. The ACKs and NACKs may be, for example, hybrid automatic repeat request (HARQ) feedback messages. Some SPS occasions do not include a PDSCH transmission. For example, some SPS occasions may be configured for retransmission of prior failed transmissions and, if prior transmissions are successful, the SPS occasions may include no data. In SPS, the UE <NUM> may transmit a NACK feedback message associated with an SPS occasion (e.g., SPS <NUM> and/or SPS <NUM>), even if the SPS occasion does not include a PDSCH transmission.

This may increase uplink interference by increasing the quantity of uplink transmissions that may already be present. Additionally, or alternatively, transmitting feedback messages associated with SPS occasions that do not include PDSCH transmissions may increase UE power consumption as a result of the transmission itself and because the UE has to remain in an active state from the beginning of the SPS occasion until a retransmission timer expires after the UE transmits the feedback message.

Aspects of various techniques and apparatuses described herein enable a base station <NUM> to provide, to a UE <NUM>, an SPS skipping indicator that indicates a set of SPS occasions of an SPS communication, to be skipped. The set of SPS occasions to be skipped includes at least one SPS occasion that will not include a PDSCH transmission. In this way, the UE ignores the indicated SPS occasions by not providing feedback messages associated therewith, by not performing SPS decoding associated with the indicated SPS occasions, and/or the like. This may facilitate saving resources and energy, as reactivation DCI need not be transmitted to the UE, the feedback messages are not transmitted, and the SPS occasions are not decoded. In some aspects, techniques described herein may enable the base station <NUM> to indicate multiple SPS occasions to be skipped, multiple SPS configurations having SPS occasions to be skipped, and/or the like. In this way, further resource and energy savings may be realized without additional signaling overhead.

<FIG> is a diagram illustrating an example <NUM> of UE feedback reduction for SPS, in accordance with various aspects of the present disclosure. As shown, a base station <NUM> and a UE <NUM> may communicate with one another.

As shown by reference number <NUM>, the base station <NUM> may transmit an SPS configuration to the UE <NUM> to configure an SPS communication, which may include a set of SPS occasions (shown as "SPS <NUM>," "SPS <NUM>," "SPS <NUM>," and "SPS <NUM>"). As shown by reference <NUM>, the base station <NUM> may transmit activation DCI to the UE <NUM> to activate the SPS configuration. Upon receiving the activation DCI, the UE <NUM> may begin monitoring for SPS transmissions scheduled according to the SPS configuration.

As shown by reference <NUM>, the base station <NUM> may transmit, and the UE <NUM> may receive, an SPS skipping indicator that indicates a set of SPS occasions, of the SPS communication, to be skipped. The set of SPS occasions to be skipped may include at least one SPS occasion that will not include a PDSCH transmission. In some aspects, the SPS skipping indicator may indicate at least one additional set of SPS occasions to be skipped.

In some aspects, the SPS skipping indicator may be carried in a medium access control (MAC) control element (CE) (shown as "MAC-CE" <NUM>). The MAC-CE <NUM> may be carried in a PDSCH transmission. In some aspects, as shown, the PDSCH transmission may include an SPS PDSCH transmission (SPS <NUM>).

In some aspects, as shown in <FIG>, the SPS skipping indicator may indicate an initial SPS occasion to occur of the set of SPS occasions to be skipped and a quantity (shown as "#") of SPS occasions of the set of SPS occasions to be skipped. In some aspects, the initial SPS occasion to occur may be indicated relative to an action time of the MAC-CE. The action time of the MAC-CE may include at least one of an end of an ACK message corresponding to the MAC-CE or an end of a specified time period that begins after the end of the ACK message corresponding to the MAC-CE. In some aspects, the SPS skipping indicator may not indicate an initial SPS occasion to occur of the SPS occasions to be skipped, in which case a default initial SPS occasion to occur of the SPS occasions to be skipped may include a next occasion to occur after an action time of the MAC-CE.

In some aspects, as shown in <FIG>, the SPS skipping indicator may indicate a start time associated with the set of SPS occasions to be skipped and a duration of a time period associated with the set of SPS occasions to be skipped. In some aspects, the start time may be indicated relative to an action time of the MAC-CE. In some aspects, the start time may include a time that occurs after a specified time period beginning at the action time of the MAC-CE. In some aspects, the start time may be indicated relative to a start time of a frame associated with the MAC-CE or the action time of the MAC-CE.

In some aspects, as shown in <FIG>, the SPS skipping indicator may include a bit map that indicates the set of SPS occasions to be skipped. In some aspects, the bit map may correspond to a plurality of SPS occasions associated with a next cycle that occurs after a cycle containing an action time of the MAC-CE. The bit map may correspond to a specified quantity of SPS occasions occurring after an action time of the MAC-CE. In some aspects, the specified quantity may include a fixed quantity configured in a radio resource control (RRC) message, a dynamically-indicated quantity indicated in the MAC-CE, and/or the like.

As shown by reference <NUM>, the UE <NUM> may transmit feedback messages to the base station <NUM> based at least in part on some SPS occasions of the SPS configuration <NUM>. A feedback message may include an acknowledgment (shown as "A" and interchangeably referred to as "ACK"), a negative acknowledgment (shown as "N" and interchangeably referred to as "NACK"), and/or the like. The ACKs and NACKs may be, for example, HARQ feedback messages.

As shown by reference number <NUM>, the UE <NUM> may ignore the at least one SPS occasion of the indicated set of SPS occasions. The UE <NUM> may ignore an SPS occasion by not transmitting a feedback message associated with the SPS occasion, by not performing SPS decoding associated with the SPS occasion, and/or the like. In some aspects, as indicated above, the SPS skipping indicator may indicate at least one additional set of SPS occasions to be skipped. The at least one additional set of SPS occasions may correspond to the SPS configuration associated with reference number <NUM> and/or another SPS configuration. In some aspects, the UE <NUM> may ignore each SPS occasion of the at least one additional set of SPS occasions to be skipped.

In some aspects, the SPS skipping indicator may be carried in a DCI transmission. The DCI transmission may be carried in any control resource set, synchronization signal, and/or the like. In some aspects, the base station <NUM> may transmit, and the UE <NUM> may receive, an RRC message that configures one or more data fields in the DCI transmission to carry the SPS skipping indicator.

In some aspects, the DCI transmission may include a legacy DCI format specified by a wireless communication standard that schedules at least one of uplink signals or downlink signals. For example, in some aspects, the DCI transmission may include the activation DCI shown by reference number <NUM>. In some aspects, as shown by reference number <NUM>, the DCI transmission may include a dedicated DCI format that is dedicated to carrying an SPS skipping indicator. In some aspects, the DCI transmission does not affect one or more discontinuous reception (DRX) timers. The one or more DRX timers may include a DRX inactivity timer, a DRX downlink retransmission timer, a DRX uplink retransmission timer, a DRX hybrid automatic repeat request (HARQ) downlink retransmission timer, a DRX HARQ uplink retransmission timer, and/or the like.

In some aspects, as shown by reference number <NUM>, the UE <NUM> may transmit, and the base station <NUM> may receive, a dedicated feedback message that includes an acknowledgement or a negative acknowledgment (A/N) associated with receiving the DCI transmission. In some aspects, the dedicated feedback message may correspond to at least one of a HARQ-ACK codebook type one, a HARQ-ACK codebook type <NUM>, a HARQ-ACK codebook type <NUM>, and/or the like.

In some aspects, the SPS skipping indicator may indicate an initial SPS occasion to occur of the set of SPS occasions to be skipped. The initial SPS occasion to occur may be indicated relative to an action time of the DCI transmission. In some aspects, as shown by reference number <NUM>, the initial SPS occasion to occur may include an SPS occasion that occurs a specified quantity (shown as "X") of symbols after an end of the DCI transmission. The DCI transmission may be associated with a dedicated feedback message or not.

As shown by reference number <NUM>, in some aspects, the initial SPS occasion to occur may include an SPS occasion that occurs a specified quantity, X, of symbols after an end of an uplink feedback transmission (shown as "DEDICATED A/N") associated with the DCI transmission. In some aspects, the specified quantity, X, of symbols may be based at least in part on at least one of: a subcarrier spacing (SCS) of a scheduling component carrier (CC) carrying the DCI transmission, an SCS of a CC carrying the SPS communication, an SCS of a CC carrying an uplink feedback transmission associated with the DCI transmission, and/or the like.

In some aspects, the initial SPS occasion to occur may be indicated relative to an action time of a MAC-CE. The action time of the MAC-CE may include at least one of an end of an acknowledgement (ACK) message corresponding to the MAC-CE or an end of a specified time period that begins after the end of the ACK message corresponding to the MAC-CE. In some aspects, the SPS skipping indicator may not indicate an initial SPS occasion to occur of the SPS occasions to be skipped, in which case a configured default initial SPS occasion to occur of the SPS occasions to be skipped may include a next occasion to occur after an action time of a MAC-CE.

In some aspects, the start time associated with the set of SPS occasions to be skipped may be indicated relative to an action time of a MAC-CE. The start time may include a time that occurs after a specified time period beginning at the action time of the MAC-CE. In some aspects, the start time may be indicated relative to a start time of a frame associated with the MAC-CE.

In some aspects, the bit map that indicates the set of SPS occasions to be skipped may correspond to a plurality of SPS occasions associated with a next cycle that occurs after a cycle containing an action time of a MAC-CE. In some aspects, the bit map may correspond to a specified quantity of SPS occasions occurring after an action time of the MAC-CE. The specified quantity may include a fixed quantity configured in an RRC message, a dynamically-indicated quantity indicated in the MAC-CE, and/or the like.

As shown by reference <NUM>, the UE <NUM> may transmit feedback messages to the base station <NUM> based at least in part on some SPS occasions of the SPS configuration <NUM>. As shown by reference number <NUM>, the UE <NUM> may ignore the at least one SPS occasion of the indicated set of SPS occasions. The UE <NUM> may ignore an SPS occasion by not transmitting a feedback message associated with the SPS occasion, by not performing SPS decoding associated with the SPS occasion, and/or the like. In some aspects, as indicated above, the SPS skipping indicator may indicate at least one additional set of SPS occasions to be skipped. The at least one additional set of SPS occasions may correspond to the SPS configuration associated with reference number <NUM> and/or another SPS configuration. In some aspects, the UE <NUM> may ignore each SPS occasion of the at least one additional set of SPS occasions to be skipped.

In some aspects, the SPS skipping indicator may be indicated by a downlink sequence. The downlink sequence may include a demodulation reference signal (shown as DMRS <NUM>), a channel state information reference signal, and/or the like. In some aspects, the downlink sequence may be carried in a resource allocation associated with the SPS occasion.

As shown in <FIG>, the downlink sequence may include a DMRS <NUM> carried in one or more symbols of an SPS occasion to be skipped (shown as SPS <NUM>). In some aspects, the one or more symbols of the SPS occasion SPS <NUM> are an ending one or more symbols of the SPS occasion SPS <NUM>. In some aspects, the downlink sequence is carried outside of a resource allocation associated with the SPS occasion SPS <NUM>.

As shown by reference number <NUM>, the UE <NUM> may transmit, and the base station <NUM> may receive, a dedicated feedback message (shown as "DEDICATED A/N") that includes an acknowledgement or a negative acknowledgment associated with receiving the downlink sequence. In some aspects, the dedicated feedback message may correspond to a HARQ-ACK codebook type one, a HARQ-ACK codebook type <NUM>, a HARQ-ACK codebook type <NUM>, and/or the like.

As shown in <FIG>, the set of SPS occasions to be skipped indicated by the downlink sequence may include an SPS occasion SPS <NUM> associated with the downlink sequence. In some aspects, the set of SPS occasions to be skipped indicated by the downlink sequence may include a plurality of SPS occasions associated with the downlink sequence.

In some aspects, different downlink sequences may correspond to different sets of SPS occasions to be skipped. In some aspects, for example, as shown in <FIG> in connection with reference number <NUM>, a first downlink sequence (shown as "SEQUENCE <NUM>") may indicate SPS <NUM> as an SPS occasion to skip, while a second downlink sequence (shown as "SEQUENCE <NUM>") may indicate SPS <NUM> as an SPS occasion to skip.

In some aspects, the downlink sequence may indicate a first start time associated with the set of SPS occasions to be skipped and a first duration of a time period associated with the set of SPS occasions to be skipped. Another downlink sequence may indicate a second start time associated with the set of SPS occasions to be skipped and a second duration of a time period associated with the set of SPS occasions to be skipped.

In some aspects, the SPS skipping indicator may indicate an initial SPS occasion to occur of the set of SPS occasions to be skipped. The initial SPS occasion to occur may be indicated relative to an action time of the downlink sequence. In some aspects, the initial SPS occasion to occur may include an SPS occasion that occurs a specified quantity of symbols after an end of the downlink sequence. In some aspects, the download sequence may be associated with a dedicated feedback message (DEDICATED A/N). In some aspects, the download sequence may not be associated with a dedicated feedback message.

In some aspects, the initial SPS occasion to occur may include an SPS occasion that occurs a specified quantity of symbols after an end of an uplink feedback transmission associated with the downlink sequence.

<FIG> is a diagram illustrating an example process <NUM> performed, for example, by a UE, in accordance with various aspects of the present disclosure. Example process <NUM> is an example where the UE (e.g., UE <NUM> and/or the like) performs operations associated with UE feedback reduction for SPS.

As shown in <FIG>, in some aspects, process <NUM> may include receiving, from a base station, an SPS skipping indicator that indicates a set of SPS occasions, of an SPS communication, to be skipped, wherein the set of SPS occasions to be skipped comprises at least one SPS occasion that will not include a PDSCH transmission (block <NUM>). For example, the UE (e.g., using receive processor <NUM>, controller/processor <NUM>, memory <NUM>, and/or the like) may receive, from a base station, an SPS skipping indicator that indicates a set of SPS occasions, of an SPS communication, to be skipped, as described above. In some aspects, the set of SPS occasions to be skipped comprises at least one SPS occasion that will not include a PDSCH transmission.

As further shown in <FIG>, in some aspects, process <NUM> may include ignoring the at least one SPS occasion of the set of SPS occasions by not transmitting a feedback message associated with the at least one SPS occasion (block <NUM>). For example, the UE (e.g., using transmit processor <NUM>, controller/processor <NUM>, memory <NUM>, and/or the like) may transmit feedback messages associated with SPS occasions having PDSCH transmissions and may ignore the at least one SPS occasion of the set of SPS occasions by not transmitting a feedback message associated with the at least one SPS occasion, as described above.

In a first aspect, ignoring the at least one SPS occasion further comprises not performing SPS decoding associated with the at least one SPS occasion.

In a second aspect, alone or in combination with the first aspect, the SPS skipping indicator indicates at least one additional set of SPS occasions to be skipped, and process <NUM> includes ignoring each SPS occasion of the at least one additional set of SPS occasions to be skipped.

In a third aspect, alone or in combination with one or more of the first and second aspects, the SPS skipping indicator indicates: an initial SPS occasion to occur of the set of SPS occasions to be skipped, and a quantity of SPS occasions of the set of SPS occasions to be skipped.

In a fourth aspect, alone or in combination with one or more of the first through third aspects, the SPS skipping indicator indicates: a start time associated with the set of SPS occasions to be skipped, and a duration of a time period associated with the set of SPS occasions to be skipped.

In a fifth aspect, alone or in combination with one or more of the first through fourth aspects, the SPS skipping indicator comprises a bit map that indicates the set of SPS occasions to be skipped.

In a sixth aspect, alone or in combination with one or more of the first through fifth aspects, the SPS skipping indicator is carried in a MAC-CE.

In a seventh aspect, alone or in combination with the sixth aspect, the MAC-CE is carried in a PDSCH transmission.

In an eighth aspect, alone or in combination with the seventh aspect, the PDSCH transmission comprises an SPS PDSCH transmission.

In a ninth aspect, alone or in combination with one or more of the seventh through eighth aspects, the SPS skipping indicator indicates an initial SPS occasion to occur of the set of SPS occasions to be skipped, wherein the initial SPS occasion to occur is indicated relative to an action time of the MAC-CE.

In a tenth aspect, alone or in combination with the ninth aspect, the action time of the MAC-CE comprises at least one of an end of an ACK message corresponding to the MAC-CE or an end of a specified time period that begins after the end of the ACK message corresponding to the MAC-CE.

In an eleventh aspect, alone or in combination with one or more of the sixth through seventh aspects, the SPS skipping indicator does not indicate an initial SPS occasion to occur of the SPS occasions to be skipped, and a default initial SPS occasion to occur of the SPS occasions to be skipped comprises a next occasion to occur after an action time of the MAC-CE.

In a twelfth aspect, alone or in combination with one or more of the sixth through seventh aspects, the SPS skipping indicator indicates a start time associated with the set of SPS occasions to be skipped, wherein the start time is indicated relative to an action time of the MAC-CE.

In a thirteenth aspect, alone or in combination with the twelfth aspect, the start time comprises a time that occurs after a specified time period beginning at the action time of the MAC-CE.

In a fourteenth aspect, alone or in combination with the twelfth aspect, the start time is indicated relative to a start time of a frame associated with the MAC-CE or the action time of the MAC-CE.

In a fifteenth aspect, alone or in combination with one or more of the sixth through seventh aspects, the SPS skipping indicator comprises a bit map that indicates the set of SPS occasions to be skipped, wherein the bit map corresponds to a plurality of SPS occasions associated with a next cycle that occurs after a cycle containing an action time of the MAC-CE.

In a sixteenth aspect, alone or in combination with the fifteenth aspect, the bit map corresponds to a specified quantity of SPS occasions occurring after an action time of the MAC-CE.

In a seventeenth aspect, alone or in combination with the sixteenth aspect, the specified quantity comprises a fixed quantity configured in an RRC message.

In an eighteenth aspect, alone or in combination with the sixteenth aspect, the specified quantity comprises a dynamically-indicated quantity indicated in the MAC-CE.

In a nineteenth aspect, alone or in combination with the first aspect, the SPS skipping indicator is carried in a DCI transmission.

In a twentieth aspect, alone or in combination with the nineteenth aspect, process <NUM> includes receiving, from the base station, a radio resource control message that configures one or more data fields in the DCI transmission to carry the SPS skipping indicator.

In a twenty-first aspect, alone or in combination with one or more of the nineteenth through twentieth aspects, the DCI transmission comprises a DCI format that schedules at least one of uplink signals or downlink signals.

In a twenty-second aspect, alone or in combination with one or more of the nineteenth through twenty-first aspects, the DCI transmission comprises a dedicated DCI format.

In a twenty-third aspect, alone or in combination with the twenty-second aspect, the DCI transmission does not affect one or more DRX timers, the one or more DRX timers comprising at least one of: a DRX inactivity timer, a DRX downlink retransmission timer, a DRX uplink retransmission timer, a DRX HARQ downlink retransmission timer, a DRX HARQ uplink retransmission timer, or a combination thereof.

In a twenty-fourth aspect, alone or in combination with one or more of the twenty-second through twenty-third aspects, process <NUM> includes transmitting, to the base station, a dedicated feedback message that includes an acknowledgement or a negative acknowledgment associated with receiving the DCI transmission.

In a twenty-fifth aspect, alone or in combination with the twenty-fourth aspect, the dedicated feedback message corresponds to at least one of a HARQ-ACK codebook type one, a HARQ-ACK codebook type <NUM>, or a HARQ-ACK codebook type <NUM>.

In a twenty-sixth aspect, alone or in combination with one or more of the nineteenth through twenty-fifth aspects, the SPS skipping indicator indicates an initial SPS occasion to occur of the set of SPS occasions to be skipped, wherein the initial SPS occasion to occur is indicated relative to an action time of a MAC-CE.

In a twenty-seventh aspect, alone or in combination with the twenty-sixth aspect, the action time of the MAC-CE comprises at least one of an end of an ACK message corresponding to the MAC-CE or an end of a specified time period that begins after the end of the ACK message corresponding to the MAC-CE.

In a twenty-eighth aspect, alone or in combination with the nineteenth aspect, the SPS skipping indicator does not indicate an initial SPS occasion to occur of the SPS occasions to be skipped, and a configured default initial SPS occasion to occur of the SPS occasions to be skipped comprises a next occasion to occur after an action time of a MAC-CE.

In a twenty-ninth aspect, alone or in combination with one or more of the nineteenth through twenty-eighth aspects, the SPS skipping indicator indicates a start time associated with the set of SPS occasions to be skipped, wherein the start time is indicated relative to an action time of a MAC-CE.

In a thirtieth aspect, alone or in combination with the twenty-ninth aspect, the start time comprises a time that occurs after a specified time period beginning at the action time of the MAC-CE.

In a thirty-first aspect, alone or in combination with one or more of the twenty-ninth through thirtieth aspects, the start time is indicated relative to a start time of a frame associated with the MAC-CE.

In a thirty-second aspect, alone or in combination with one or more of the nineteenth through thirty-first aspects, the SPS skipping indicator comprises a bit map that indicates the set of SPS occasions to be skipped, wherein the bit map corresponds to a plurality of SPS occasions associated with a next cycle that occurs after a cycle containing an action time of a MAC-CE.

In a thirty-third aspect, alone or in combination with the thirty-second aspect, the bit map corresponds to a specified quantity of SPS occasions occurring after an action time of the MAC-CE.

In a thirty-fourth aspect, alone or in combination with the thirty-third aspect, the specified quantity comprises a fixed quantity configured in a radio resource control message.

In a thirty-fifth aspect, alone or in combination with the thirty-third aspect, the specified quantity comprises a dynamically-indicated quantity indicated in the MAC-CE.

In a thirty-sixth aspect, alone or in combination with the nineteenth aspect, the SPS skipping indicator indicates an initial SPS occasion to occur of the set of SPS occasions to be skipped, wherein the initial SPS occasion to occur is indicated relative to an action time of the DCI transmission.

In a thirty-seventh aspect, alone or in combination with the thirty-sixth aspect, the initial SPS occasion to occur comprises an SPS occasion that occurs a specified quantity of symbols after an end of the DCI transmission.

In a thirty-eighth aspect, alone or in combination with the thirty-seventh aspect, the DCI transmission is associated with a dedicated feedback message.

In a thirty-ninth aspect, alone or in combination with the thirty-seventh aspect, the DCI transmission is not associated with a dedicated feedback message.

In a fortieth aspect, alone or in combination with one or more of the thirty-seventh through thirty-ninth aspects, the specified quantity of symbols is based at least in part on at least one of: an SCS of a scheduling CC carrying the DCI transmission, an SCS of a CC carrying the SPS communication, an SCS of a CC carrying an uplink feedback transmission associated with the DCI transmission, or a combination thereof.

In a forty-first aspect, alone or in combination with one or more of the thirty-seventh through fortieth aspects, the initial SPS occasion to occur comprises an SPS occasion that occurs a specified quantity of symbols after an end of an uplink feedback transmission associated with the DCI transmission.

In a forty-second aspect, alone or in combination with the forty-first aspect, the specified quantity of symbols is based at least in part on at least one of: an SCS of a scheduling CC carrying the DCI transmission, an SCS of a CC carrying the SPS communication, an SCS of a CC carrying an uplink feedback transmission associated with the DCI transmission, or a combination thereof.

In a forty-third aspect, alone or in combination with the first aspect, the SPS skipping indicator is indicated by a downlink sequence.

In a forty-fourth aspect, alone or in combination with the forty-third aspect, the downlink sequence comprises at least one of a demodulation reference signal, a channel state information reference signal, or a combination thereof.

In a forty-fifth aspect, alone or in combination with one or more of the forty-third through forty-fourth aspects, the downlink sequence is carried in a resource allocation associated with the at least one SPS occasion.

In a forty-sixth aspect, alone or in combination with the forty-fifth aspect, the downlink sequence comprises a demodulation reference signal carried in one or more symbols of the at least one SPS occasion.

In a forty-seventh aspect, alone or in combination with the forty-sixth aspect, the one or more symbols of the at least one SPS occasion are an ending one or more symbols of the at least one SPS occasion.

In a forty-eighth aspect, alone or in combination with one or more of the forty-third through forty-fifth aspects, the downlink sequence is carried outside of a resource allocation associated with the at least one SPS occasion.

In a forty-ninth aspect, alone or in combination with one or more of the forty-third through forty-eighth aspects, process <NUM> includes transmitting, to the base station, a dedicated feedback message that includes an acknowledgement or a negative acknowledgment associated with receiving the downlink sequence.

In a fiftieth aspect, alone or in combination with the forty-ninth aspect, the dedicated feedback message corresponds to at least one of a HARQ-ACK codebook type one, a HARQ-ACK codebook type <NUM>, or a HARQ-ACK codebook type <NUM>.

In a fifty-first aspect, alone or in combination with one or more of the forty-third through fiftieth aspects, the set of SPS occasions to be skipped indicated by the downlink sequence comprises an SPS occasion associated with the downlink sequence.

In a fifty-second aspect, alone or in combination with one or more of the forty-third through fifty-first aspects, the set of SPS occasions to be skipped indicated by the downlink sequence comprises a plurality of SPS occasions associated with the downlink sequence.

In a fifty-third aspect, alone or in combination with one or more of the forty-third through fifty-second aspects, the downlink sequence indicates a first start time associated with the set of SPS occasions to be skipped and a first duration of a time period associated with the set of SPS occasions to be skipped, and another downlink sequence indicates a second start time associated with the set of SPS occasions to be skipped and a second duration of a time period associated with the set of SPS occasions to be skipped.

In a fifty-fourth aspect, alone or in combination with one or more of the forty-third through fifty-third aspects, the SPS skipping indicator indicates an initial SPS occasion to occur of the set of SPS occasions to be skipped, wherein the initial SPS occasion to occur is indicated relative to an action time of the downlink sequence.

In a fifty-fifth aspect, alone or in combination with the fifty-fourth aspect, the initial SPS occasion to occur comprises an SPS occasion that occurs a specified quantity of symbols after an end of the downlink sequence.

In a fifty-sixth aspect, alone or in combination with the fifty-fifth aspects, the download sequence is associated with a dedicated feedback message.

In a fifty-seventh aspect, alone or in combination with the fifty-fifth aspects, the download sequence is not associated with a dedicated feedback message.

In a fifty-eighth aspect, alone or in combination with the fifty-fourth aspect, the initial SPS occasion to occur comprises an SPS occasion that occurs a specified quantity of symbols after an end of an uplink feedback transmission associated with the downlink sequence.

<FIG> is a diagram illustrating an example process <NUM> performed, for example, by a base station, in accordance with various aspects of the present disclosure. Example process <NUM> is an example where the base station (e.g., base station <NUM> and/or the like) performs operations associated with UE feedback reduction for SPS.

As shown in <FIG>, in some aspects, process <NUM> may include transmitting, to a UE, an SPS skipping indicator that indicates a set of SPS occasions, of an SPS communication, to be skipped, wherein the set of SPS occasions to be skipped comprises at least one SPS occasion that will not include a PDSCH transmission (block <NUM>). For example, the base station (e.g., using transmit processor <NUM>, controller/processor <NUM>, memory <NUM>, and/or the like) may transmit, to a UE, an SPS skipping indicator that indicates a set of SPS occasions, of an SPS communication, to be skipped, as described above. In some aspects, the set of SPS occasions to be skipped comprises at least one SPS occasion that will not include a PDSCH transmission.

As further shown in <FIG>, in some aspects, process <NUM> may include transmitting the SPS communication (block <NUM>). For example, the base station (e.g., using transmit processor <NUM>, controller/processor <NUM>, memory <NUM>, and/or the like) may transmit the SPS communication, as described above.

In a first aspect, the UE is to ignore the at least one SPS occasion by not transmitting a feedback message associated with the at least one SPS occasion.

In a second aspect, alone or in combination with the first aspect, the UE is to ignore the at least one SPS occasion by not performing SPS decoding associated with the at least one SPS occasion.

In a third aspect, alone or in combination with one or more of the first and second aspects, the SPS skipping indicator indicates at least one additional set of SPS occasions to be skipped, wherein the UE is to skip each SPS occasion of the at least one additional set of SPS occasions to be skipped.

In a fourth aspect, alone or in combination with one or more of the first through third aspects, the SPS skipping indicator indicates: an initial SPS occasion to occur of the set of SPS occasions to be skipped, and a quantity of SPS occasions of the set of SPS occasions to be skipped.

In a fifth aspect, alone or in combination with one or more of the first through fourth aspects, the SPS skipping indicator indicates: a start time associated with the set of SPS occasions to be skipped, and a duration of a time period associated with the set of SPS occasions to be skipped.

In a sixth aspect, alone or in combination with one or more of the first through fifth aspects, the SPS skipping indicator comprises a bit map that indicates the set of SPS occasions to be skipped.

In a seventh aspect, alone or in combination with one or more of the first through sixth aspects, the SPS skipping indicator is carried in a MAC-CE.

In an eighth aspect, alone or in combination with the seventh aspects, the MAC-CE is carried in a PDSCH transmission.

In a ninth aspect, alone or in combination with the eighth aspect, the PDSCH transmission comprises an SPS PDSCH transmission.

In a tenth aspect, alone or in combination with one or more of the seventh through ninth aspects, the SPS skipping indicator indicates an initial SPS occasion to occur of the set of SPS occasions to be skipped, wherein the initial SPS occasion to occur is indicated relative to an action time of the MAC-CE.

In an eleventh aspect, alone or in combination with the tenth aspect, the action time of the MAC-CE comprises at least one of an end of an ACK message corresponding to the MAC-CE or an end of a specified time period that begins after the end of the ACK message corresponding to the MAC-CE.

In a twelfth aspect, alone or in combination with one or more of the seventh through ninth aspects, the SPS skipping indicator does not indicate an initial SPS occasion to occur of the SPS occasions to be skipped, and a default initial SPS occasion to occur of the SPS occasions to be skipped comprises a next occasion to occur after an action time of the MAC-CE.

In a thirteenth aspect, alone or in combination with one or more of the seventh through twelfth aspects, the SPS skipping indicator indicates a start time associated with the set of SPS occasions to be skipped, wherein the start time is indicated relative to an action time of the MAC-CE.

In a fourteenth aspect, alone or in combination with the thirteenth aspect, the start time comprises a time that occurs after a specified time period beginning at the action time of the MAC-CE.

In a fifteenth aspect, alone or in combination with one or more of the thirteenth through fourteenth aspects, the start time is indicated relative to a start time of a frame associated with the MAC-CE or the action time of the MAC-CE.

In a sixteenth aspect, alone or in combination with one or more of the seventh through fifteenth aspects, the SPS skipping indicator comprises a bit map that indicates the set of SPS occasions to be skipped, wherein the bit map corresponds to a plurality of SPS occasions associated with a next cycle that occurs after a cycle containing an action time of the MAC-CE.

In a seventeenth aspect, alone or in combination with the sixteenth aspect, the bit map corresponds to a specified quantity of SPS occasions occurring after an action time of the MAC-CE.

In an eighteenth aspect, alone or in combination with the seventeenth aspect, the specified quantity comprises a fixed quantity configured in an RRC message.

In a nineteenth aspect, alone or in combination with the seventeenth aspect, the specified quantity comprises a dynamically-indicated quantity indicated in the MAC-CE.

In a twentieth aspect, alone or in combination with the first aspect, the SPS skipping indicator is carried in a DCI transmission.

In a twenty-first aspect, alone or in combination with the twentieth aspect, process <NUM> includes transmitting, to the UE, a radio resource control message that configures one or more data fields in the DCI transmission to carry the SPS skipping indicator.

In a twenty-second aspect, alone or in combination with one or more of the twentieth through twenty-first aspects, the DCI transmission comprises a DCI format that schedules at least one of uplink signals or downlink signals.

In a twenty-third aspect, alone or in combination with one or more of the twentieth through twenty-second aspects, the DCI transmission comprises a dedicated DCI format.

In a twenty-fourth aspect, alone or in combination with the twenty-third aspect, the DCI transmission does not affect one or more DRX timers, the one or more DRX timers comprising at least one of: a DRX inactivity timer, a DRX downlink retransmission timer, a DRX uplink retransmission timer, a DRX HARQ downlink retransmission timer, a DRX HARQ uplink retransmission timer, or a combination thereof.

In a twenty-fifth aspect, alone or in combination with one or more of the twenty-third through twenty-fourth aspects, process <NUM> includes receiving, from the UE, a dedicated feedback message that includes an acknowledgement or a negative acknowledgment associated with receiving the DCI transmission.

In a twenty-sixth aspect, alone or in combination with the twenty-fifth aspect, the dedicated feedback message corresponds to at least one of a HARQ-ACK codebook type one, a HARQ-ACK codebook type <NUM>, or a HARQ-ACK codebook type <NUM>.

In a twenty-seventh aspect, alone or in combination with one or more of the twentieth through twenty-sixth aspects, the SPS skipping indicator indicates an initial SPS occasion to occur of the set of SPS occasions to be skipped, wherein the initial SPS occasion to occur is indicated relative to an action time of a MAC-CE.

In a twenty-eighth aspect, alone or in combination with the twenty-seventh aspect, the action time of the MAC-CE comprises at least one of an end of an ACK message corresponding to the MAC-CE or an end of a specified time period that begins after the end of the ACK message corresponding to the MAC-CE.

In a twenty-ninth aspect, alone or in combination with one or more of the twentieth through twenty-eighth aspects, the SPS skipping indicator does not indicate an initial SPS occasion to occur of the SPS occasions to be skipped, and a configured default initial SPS occasion to occur of the SPS occasions to be skipped comprises a next occasion to occur after an action time of a MAC-CE.

In a thirtieth aspect, alone or in combination with one or more of the twentieth through twenty-ninth aspects, the SPS skipping indicator indicates a start time associated with the set of SPS occasions to be skipped, wherein the start time is indicated relative to an action time of a MAC-CE.

In a thirty-first aspect, alone or in combination with the thirtieth aspect, the start time comprises a time that occurs after a specified time period beginning at the action time of the MAC-CE.

In a thirty-second aspect, alone or in combination with one or more of the thirtieth through thirty-first aspects, the start time is indicated relative to a start time of a frame associated with the MAC-CE.

In a thirty-third aspect, alone or in combination with one or more of the twentieth through thirty-second aspects, the SPS skipping indicator comprises a bit map that indicates the set of SPS occasions to be skipped, wherein the bit map corresponds to a plurality of SPS occasions associated with a next cycle that occurs after a cycle containing an action time of a MAC-CE.

In a thirty-fourth aspect, alone or in combination with the thirty-third aspect, the bit map corresponds to a specified quantity of SPS occasions occurring after an action time of the MAC-CE.

In a thirty-fifth aspect, alone or in combination with the thirty-fourth aspect, the specified quantity comprises a fixed quantity configured in an RRC message.

In a thirty-sixth aspect, alone or in combination with one or more of the first through thirty-fifth aspects, the specified quantity comprises a dynamically-indicated quantity indicated in the MAC-CE.

In a thirty-seventh aspect, alone or in combination with the thirty-fourth aspect, the SPS skipping indicator indicates an initial SPS occasion to occur of the set of SPS occasions to be skipped, wherein the initial SPS occasion to occur is indicated relative to an action time of the DCI transmission.

In a thirty-eighth aspect, alone or in combination with the twentieth aspect, the initial SPS occasion to occur comprises an SPS occasion that occurs a specified quantity of symbols after an end of the DCI transmission.

In a thirty-ninth aspect, alone or in combination with the thirty-eighth aspect, the DCI transmission is associated with a dedicated feedback message.

In a fortieth aspect, alone or in combination with the thirty-eighth aspects, the DCI transmission is not associated with a dedicated feedback message.

In a forty-first aspect, alone or in combination with one or more of the thirty-eighth through fortieth aspects, the specified quantity of symbols is based at least in part on at least one of: an SCS of a scheduling CC carrying the DCI transmission, an SCS of a CC carrying the SPS communication, an SCS of a CC carrying an uplink feedback transmission associated with the DCI transmission, or a combination thereof.

In a forty-second aspect, alone or in combination with one or more of the thirty-seventh through forty-first aspects, the initial SPS occasion to occur comprises an SPS occasion that occurs a specified quantity of symbols after an end of an uplink feedback transmission associated with the DCI transmission.

In a forty-third aspect, alone or in combination with the forty-second aspect, the specified quantity of symbols is based at least in part on at least one of: an SCS of a scheduling CC carrying the DCI transmission, an SCS of a CC carrying the SPS communication, an SCS of a CC carrying an uplink feedback transmission associated with the DCI transmission, or a combination thereof.

In a forty-fourth aspect, alone or in combination with the forty-second aspect, the SPS skipping indicator is indicated by a downlink sequence.

In a forty-fifth aspect, alone or in combination with the forty-fourth aspect, the downlink sequence comprises at least one of a demodulation reference signal, a channel state information reference signal, or a combination thereof.

In a forty-sixth aspect, alone or in combination with one or more of the forty-fourth through forty-fifth aspects, the downlink sequence is carried in a resource allocation associated with the at least one SPS occasion.

In a forty-seventh aspect, alone or in combination with the forty-sixth aspect, the downlink sequence comprises a demodulation reference signal carried in one or more symbols of the at least one SPS occasion.

In a forty-eighth aspect, alone or in combination with the forty-seventh aspect, the one or more symbols of the at least one SPS occasion are an ending one or more symbols of the at least one SPS occasion.

In a forty-ninth aspect, alone or in combination with the forty-fourth aspect, the downlink sequence is carried outside of a resource allocation associated with the at least one SPS occasion.

In a fiftieth aspect, alone or in combination with one or more of the forty-fourth through forty-ninth aspects, process <NUM> includes receiving, from the UE, a dedicated feedback message that includes an acknowledgement or a negative acknowledgment associated with receiving the downlink sequence.

In a fifty-first aspect, alone or in combination with the fiftieth aspect, the dedicated feedback message corresponds to at least one of a HARQ-ACK codebook type one, a HARQ-ACK codebook type <NUM>, or a HARQ-ACK codebook type <NUM>.

In a fifty-second aspect, alone or in combination with one or more of the forty-fourth through fifty-first aspects, the set of SPS occasions to be skipped indicated by the downlink sequence comprises an SPS occasion associated with the downlink sequence.

In a fifty-third aspect, alone or in combination with one or more of the forty-fourth through fifty-second aspects, the set of SPS occasions to be skipped indicated by the downlink sequence comprises a plurality of SPS occasions associated with the downlink sequence.

In a fifty-fourth aspect, alone or in combination with one or more of the forty-fourth through fifty-third aspects, the downlink sequence indicates a first start time associated with the set of SPS occasions to be skipped and a first duration of a time period associated with the set of SPS occasions to be skipped, and another downlink sequence indicates a second start time associated with the set of SPS occasions to be skipped and a second duration of a time period associated with the set of SPS occasions to be skipped.

In a fifty-fifth aspect, alone or in combination with one or more of the forty-fourth through fifty-fourth aspects, the SPS skipping indicator indicates an initial SPS occasion to occur of the set of SPS occasions to be skipped, wherein the initial SPS occasion to occur is indicated relative to an action time of the downlink sequence.

In a fifty-sixth aspect, alone or in combination with the fifty-fifth aspect, the initial SPS occasion to occur comprises an SPS occasion that occurs a specified quantity of symbols after an end of the downlink sequence.

In a fifty-seventh aspect, alone or in combination with the fifty-sixth aspect, the download sequence is associated with a dedicated feedback message.

In a fifty-eighth aspect, alone or in combination with the fifty-sixth aspect, the download sequence is not associated with a dedicated feedback message.

In a fifty-ninth aspect, alone or in combination with one or more of the fifty-fifth through fifty-eighth aspects, the initial SPS occasion to occur comprises an SPS occasion that occurs a specified quantity of symbols after an end of an uplink feedback transmission associated with the downlink sequence.

Claim 1:
A method of wireless communication performed by a user equipment (<NUM>), UE, the method comprising:
receiving (<NUM>), from a base station (<NUM>), a semi-persistent scheduling, SPS, skipping indicator (<NUM>, <NUM>, <NUM>) that indicates a set of SPS occasions, of an SPS communication, to be skipped, wherein the set of SPS occasions to be skipped comprises at least one SPS occasion that does not include a physical downlink shared channel, PDSCH, transmission;
ignoring (<NUM>) the at least one SPS occasion of the set of SPS occasions by not transmitting a feedback message associated with the at least one SPS occasion and by not performing SPS decoding associated with the at least one SPS occasion; and
transmitting a feedback message associated with at least one other SPS occasion of the SPS communication.