Patent Description:
However, as the demand for mobile broadband access continues to increase, further improvements in LTE and NR technologies remain useful.

Document <NPL>, and document <NPL> are documents of the prior art in the technical field in question.

In the following, each of the described methods, apparatuses, systems, examples and aspects which does not fully correspond to the invention as defined in the claims is thus not according to the invention and is, as well as the whole following description, present for illustration purposes only or to highlight specific aspects or features of the claims. In some aspects, a method of wireless communication, performed by a user equipment (UE), may include receiving information configuring one or more occasions of a periodic channel state information reference signal (P-CSI-RS) without associated quasi co-location (QCL) information for the one or more occasions of the P-CSI-RS. The method may include receiving an occasion of the P-CSI-RS, of the one or more occasions of the P-CSI-RS, using a QCL relation determined based at least in part on whether a physical downlink shared channel (PDSCH) is scheduled for a same set of symbols as the occasion of the P-CSI-RS.

In some aspects, a UE for wireless communication may include memory and one or more processors operatively coupled to the memory. The memory and the one or more processors may be configured to receive information configuring one or more occasions of a periodic channel state information reference signal (P-CSI-RS) without associated quasi co-location (QCL) information for the one or more occasions of the P-CSI-RS. The memory and the one or more processors may be configured to receive an occasion of the P-CSI-RS, of the one or more occasions of the P-CSI-RS, using a QCL relation determined based at least in part on whether a physical downlink shared channel (PDSCH) is scheduled for a same set of symbols as the occasion of the P-CSI-RS.

In some aspects, a non-transitory computer-readable medium may store one or more instructions for wireless communication. The one or more instructions, when executed by one or more processors of a UE, may cause the one or more processors to receive information configuring one or more occasions of a periodic channel state information reference signal (P-CSI-RS) without associated quasi co-location (QCL) information for the one or more occasions of the P-CSI-RS. The one or more instructions, when executed by the one or more processors of the UE, may cause the one or more processors to receive an occasion of the P-CSI-RS, of the one or more occasions of the P-CSI-RS, using a QCL relation determined based at least in part on whether a physical downlink shared channel (PDSCH) is scheduled for a same set of symbols as the occasion of the P-CSI-RS.

In some aspects, an apparatus for wireless communication may include means for receiving information configuring one or more occasions of a periodic channel state information reference signal (P-CSI-RS) without associated quasi co-location (QCL) information for the one or more occasions of the P-CSI-RS. The apparatus may include means for receiving an occasion of the P-CSI-RS, of the one or more occasions of the P-CSI-RS, using a QCL relation determined based at least in part on whether a physical downlink shared channel (PDSCH) is scheduled for a same set of symbols as the occasion of the P-CSI-RS.

Aspects generally include a method, apparatus, system, computer program product, non-transitory computer-readable medium, user equipment, base station, wireless communication device, and processing system as substantially described herein with reference to and as illustrated by the accompanying drawings and/or specification.

Each of the figures is provided for the purpose of illustration and description.

It is to be noted, however, that the appended drawings illustrate only certain typical aspects of this disclosure.

These aspects are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.

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 QCL relation configuration for P-CSI-RSs, 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> 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. As such, memory <NUM> of the UE can comprise a non-transitory computer-readable medium storing one or more instructions for wireless communication, where the one or more instructions comprise one or more instructions that, when executed by one or more processors (e.g., processor <NUM> and/or controller/processor <NUM>) of the UE <NUM>, cause the one or more processors to perform the method described in greater detail with reference to <FIG>, <FIG>, <FIG>, and/or <NUM>.

In some aspects, UE <NUM> may include means for receiving information configuring one or more occasions of a periodic channel state information reference signal (P-CSI-RS) without associated quasi co-location (QCL) information for the one or more occasions of the P-CSI-RS (e.g., using antenna <NUM>, DEMOD <NUM>, MIMO detector <NUM>, receive processor <NUM>, controller/processor <NUM>, memory <NUM>, and/or the like), means for receiving an occasion of the P-CSI-RS, of the one or more occasions of the P-CSI-RS, using a QCL relation determined based at least in part on whether a physical downlink shared channel (PDSCH) is scheduled for a same set of symbols as the occasion of the P-CSI-RS (e.g., using antenna <NUM>, DEMOD <NUM>, MIMO detector <NUM>, receive processor <NUM>, controller/processor <NUM>, memory <NUM>, and/or the like), and/or the like. In some aspects, such means may include one or more components of UE <NUM> described in connection with <FIG>.

An interlace structure may be used for each of the downlink and uplink for FDD in certain telecommunications systems (e.g., NR). For example, Q interlaces with indices of <NUM> through Q - <NUM> may be defined, where Q may be equal to <NUM>, <NUM>, <NUM>, <NUM>, or some other value. Each interlace may include slots that are spaced apart by Q frames. In particular, interlace q may include slots q, q + Q, q + 2Q, etc., where q ∈ {<NUM>,.

In aspects, NR may utilize OFDM with a CP (herein referred to as cyclic prefix OFDM or CP-OFDM) and/or SC-FDM on the uplink, may utilize CP-OFDM on the downlink and include support for half-duplex operation using time division duplexing (TDD). NR may include Enhanced Mobile Broadband (eMBB) service targeting wide bandwidth (e.g., <NUM> megahertz (MHz) and beyond), millimeter wave (mmW) targeting high carrier frequency (e.g., <NUM> gigahertz (GHz)), massive MTC (mMTC) targeting non-backward compatible MTC techniques, and/or mission critical targeting ultra-reliable low latency communications (URLLC) service.

NR resource blocks may span <NUM> sub-carriers with a sub-carrier bandwidth of <NUM> or <NUM> kilohertz (kHz) over a <NUM> duration.

In some communication systems, such as <NUM> or NR, a plurality of different quasi co-location (QCL) relations may be defined for receiving a signal from a BS. For example, QCL relation type A may define a doppler shift, a doppler spread, an average delay, a delay spread, and/or the like for a UE to receive a signal from a BS. Similarly, for QCL relation type B, a doppler shift and doppler spread may be defined; for QCL relation type C, a doppler shift and average delay may be defined; and for QCL type D, a spatial receiver parameter may be defined. In another example, another type of QCL relation may define an average delay and a delay spread for receiving a signal. In some cases, a transmission configuration indicator (TCI) state of a signal may be optionally definable, which may result in a BS failing to transmit information identifying a QCL relation to use for receiving the signal. As a result, a UE may be unable to receive and process the signal, which may result in the UE dropping the signal and in degraded network performance.

Some aspects described herein may use information regarding whether a physical downlink shared channel (PDSCH) is scheduled for a same set of symbols as an occasion of a periodic channel state information reference signal (P-CSI-RS) to determine a QCL relation for receiving and processing an occasion of the P-CSI-RS. For example, when a UE receives a grant scheduling the PDSCH for the same set of symbols as a scheduled occasion of a P-CSI-RS, the UE may determine a QCL relation for receiving the scheduled occasion of the P-CSI-RS based at least in part on a corresponding QCL relation of the PDSCH. Alternatively, when a PDSCH is not scheduled for the same set of symbols as the scheduled occasion of the P-CSI-RS, the UE may determine the QCL relation based at least in part on one or more QCL relations of one or more control-resource sets (CORESETs) received by the UE. In this way, the UE may receive and process a P-CSI-RS when information scheduling the P-CSI-RS does not include information identifying a QCL relation, thereby reducing a likelihood of dropped signals and improving network performance.

<FIG> are diagrams illustrating examples <NUM>/<NUM>'/<NUM>" of QCL relation configuration for P-CSI-RSs, in accordance with various aspects of the present disclosure. As shown in <FIG>, example <NUM> may include a BS <NUM> and a UE <NUM>.

As further shown in <FIG>, and by reference number <NUM>, UE <NUM> may receive an radio resource control (RRC) message configuring one or more occasions of a P-CSI-RS with no QCL information. For example, UE <NUM> may receive, from BS <NUM>, information configuring one or more occasions of the P-CSI-RS that does contain information identifying a QCL relation to use to receive the one or more occasions of the P-CSI-RS. In some aspects, UE <NUM> may receive information identifying a QCL relation for other occasions of the P-CSI-RS or another P-CSI-RS. For example, BS <NUM> may provide configuration information that does not identify a first QCL relation for first occasions of a first P-CSI-RS but does identify a second QCL relation for second occasions of a second P-CSI-RS.

In some aspects, UE <NUM> may transmit UE capability information before receiving the RRC message. For example, UE <NUM> may transmit information indicating whether UE <NUM> is capable of receiving RRC information configuring some P-CSI-RS occasions with QCL relation information and some P-CSI-RS occasions without QCL relation information. Additionally, or alternatively, UE <NUM> may transmit information indicating whether UE <NUM> is capable of being configured without an RRC-based configuration of a QCL for a P-CSI-RS associated with a report with a time restriction is off, , whether a history of previous TCI states of previous P-CSI-RS is to be transmitted to UE <NUM>, and/or the like as described in more detail below.

As further shown in <FIG>, and by reference number <NUM>, UE <NUM> may receive a grant for a PDSCH. For example, as shown in scenario A, UE <NUM> may receive a grant scheduling the PDSCH for a same set of symbols as an occasion (or two occasions, as shown, or another quantity of occasions) of the P-CSI-RS. In contrast, as shown in <FIG>, and in scenario B, UE <NUM> may receive a grant scheduling the PDSCH for different symbols than an occasion of the P-CSI-RS. In contrast, as shown in <FIG>, UE <NUM> may not receive a grant scheduling the PDSCH resulting in, as shown by scenario C, a PDSCH not being scheduled for the same set of symbols as an occasion of the P-CSI-RS.

As further shown in <FIG>, and by reference number <NUM>, UE <NUM> may determine whether the PDSCH is scheduled in the same set of symbols as an occasion of the P-CSI-RS. For example, as shown in scenario A, based at least in part on the grant, UE <NUM> may determine that a PDSCH is scheduled for the same set of symbols as an occasion of the P-CSI-RS. In contrast, as shown in scenario B and by reference number <NUM>' and C and by reference number <NUM>", in <FIG> and <FIG>, respectively, UE <NUM> may determine that a PDSCH is not scheduled for the same set of symbols as an occasion of the P-CSI-RS. In some aspects, UE <NUM> may determine whether an occasion of the P-CSI-RS is to occur in a same set of symbols as a PDSCH based at least in part on respective scheduling information of the RRC message and the grant. In some aspects, UE <NUM> may determine whether an occasion of the P-CSI-RS is to occur in a same set of symbols as a PDSCH based at least in part on detecting the PDSCH at a time when UE <NUM> is to receive the occasion of the P-CSI-RS.

In some aspects, UE <NUM> may determine whether the PDSCH is scheduled in the same set of symbols as an occasion of the P-CSI-RS based at least in part on a scheduling constraint. For example, UE <NUM> may determine that either all of the symbols of the occasion of the P-CSI-RS overlap with the PDSCH or none of the symbols of the occasion of the P-CSI-RS overlap with the PDSCH. In some aspects, based at least in part on determining that even a single symbol of the occasion of the P-CSI-RS overlaps with the PDSCH, UE <NUM> may determine that the PDSCH is scheduled in the same set of symbols as the occasion of the P-CSI-RS. In some aspects, based at least in part on determining that a threshold quantity of symbols of the occasion of the P-CSI-RS overlaps with the PDSCH, UE <NUM> may determine that the PDSCH is scheduled in the same set of symbols as the occasion of the P-CSI-RS. In some aspects, UE <NUM> may determine that an occasion of the P-CSI-RS does not overlap with the PDSCH unless the occasion of the P-CSI-RS and the PDSCH have a common TCI state. In this case, UE <NUM> determines a QCL relation of the PDSCH is useable for the occasion of the P-CSI-RS based at least in part on the common TCI state, as described in more detail herein.

As further shown in <FIG>, and by reference number <NUM>, UE <NUM> may determine a QCL relation associated with a TCI state for the occasion of a P-CSI-RS. For example, based at least in part on determining that a PDSCH is scheduled for the same set of symbols as the occasion of the P-CSI-RS, UE <NUM> may determine the QCL relation for the occasion of the P-CSI-RS. In this case, UE <NUM> may determine the QCL relation based at least in part on a corresponding QCL relation of the PDSCH scheduled for the same set of symbols as the occasion of the P-CSI-RS. For example, UE <NUM> may determine QCL relation type A, type B, type C, type D, and/or the like. In this way, UE <NUM> enables reception and processing of the occasion of the P-CSI-RS.

Additionally, or alternatively, based at least in part on determining that a PDSCH is not scheduled for the same set of symbols as the occasion of the P-CSI-RS, as shown by reference numbers <NUM>' and <NUM>" in <FIG> and <FIG>, respectively, UE <NUM> may determine the QCL relation for the occasion of the P-CSI-RS based at least in part on a QCL relation of a CORESET (e.g., CORESET <NUM>, CORESET <NUM>, and/or the like). For example, UE <NUM> may determine a QCL relation of a particular CORESET, and may use the QCL relation of the particular CORESET for receiving the occasion of the P-CSI-RS. In some aspects, UE <NUM> may select the particular CORESET based at least in part on one or more selection criteria. For example, UE <NUM> may select the particular CORESET based at least in part on whether the particular CORESET has a configured TCI state, whether the particular CORESET occurs in a latest slot of a set of CORESETs received by UE <NUM>, whether a tracking reference signal is configured as a QCL relation source for the particular CORESET, and/or the like. Additionally, or alternatively, UE <NUM> may select the particular CORESET based at least in part on a CORESET identifier of the particular CORESET, a serving cell associated with the particular CORESET, whether a slot containing the occasion of the P-CSI-RS includes the particular CORESET, and/or the like.

In some aspects, UE <NUM> may select the particular CORESET from which to obtain a QCL relation based at least in part on a plurality of selection criteria. For example, UE <NUM> may select a CORESET with a lowest CORESET identifier or a highest CORESET identifier of CORESETs, which are in a latest slot for which one or more CORESETs are configured for the UE <NUM> within an active bandwidth part (BWP) of a serving cell of UE <NUM>, having a configured TCI state. Additionally, or alternatively, UE <NUM> may select a CORESET with a lowest CORESET identifier or a highest CORESET identifier of CORESETs, which are configured for UE <NUM> within an active BWP of a serving cell of UE <NUM>, having a configured TCI state.

Additionally, or alternatively, UE <NUM> may select a CORESET with a lowest CORESET identifier or a highest CORESET identifier of CORESETs, which are in a latest slot for which one or more CORESETs are configured for UE <NUM> within an active BWP of a serving cell of UE <NUM>. Additionally, or alternatively, UE <NUM> may select a CORESET with a lowest CORESET identifier or a highest CORESET identifier of CORESETs that are configured for UE <NUM> within an active BWP of a serving cell of UE <NUM>.

As further shown in <FIG>, <FIG>, and <FIG>, and by reference numbers <NUM>/<NUM>'/<NUM>", respectively, UE <NUM> may receive and process the occasion of the P-CSI-RS using the QCL relation determined for the occasion of the P-CSI-RS. For example, UE <NUM> may receive and process the occasion of the P-CSI-RS using a QCL relation of a PDSCH, a QCL relation of a CORESET, and/or the like. In some aspects, UE <NUM> may receive and process the occasion of the P-CSI-RS based at least in part on a scheduling constraint. For example, based at least in part on a constraint that a change of active TCI states using a media access control (MAC) control element (CE) not occur during symbols of the occasion of the P-CSI-RS (e.g., multi-symbol occasion orthogonal frequency division multiplexing (OFDM) symbol occasion with time domain orthogonal cover code (TD-OCC), such as a <NUM> OFDM symbol occasion or a <NUM> OFDM symbol occasion), UE <NUM> may receive the occasion of the P-CSI-RS using the QCL relation of a PDSCH.

In some aspects, UE <NUM> may perform P-CSI-RS averaging to process the P-CSI-RS. For example, UE <NUM> may average occasions of P-CSI-RSs using a common TCI state for channel quality information (CQI) determination, rank indicator (RI) determination, precoding matrix indicator (PMI) determination, layer <NUM> reference signal received power (L1-RSRP) determination, and/or the like. In some aspects, UE <NUM> may receive information from BS <NUM> to enable processing of the occasion P-CSI-RS. For example, for a UE <NUM> with a time measurement restriction set to off, UE <NUM> may receive information identifying TCI states associated with previous transmissions of P-CSI-RS occasions, which may enable UE <NUM> to determine which P-CSI-RS occasions to average with the occasion of the P-CSI-RS to perform a channel determination (e.g., a CQI determination). In this way, UE <NUM> may process the occasion of the P-CSI-RS even if one or more previous grants were lost.

<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 a UE (e.g., UE <NUM>) performs QCL relation configuration or P-CSI-RS.

As shown in <FIG>, in some aspects, process <NUM> may include receiving information configuring one or more occasions of a periodic channel state information reference signal (P-CSI-RS) without associated quasi co-location (QCL) information for the one or more occasions of the P-CSI-RS (block <NUM>). For example, the UE (e.g., using antenna <NUM>, DEMOD <NUM>, MIMO detector <NUM>, receive processor <NUM>, controller/processor <NUM>, and/or the like) may receive information configuring one or more occasions of a periodic channel state information reference signal (P-CSI-RS) without associated quasi co-location (QCL) information for the one or more occasions of the P-CSI-RS, as described in more detail above with regard to <FIG>. In other words, the information received by the UE configuring the one or more occasions of a P-CSI-RS may not include explicit QCL information associated with the one or more occasions of the P-CSI-RS but may enable implicit determination of the QCL relation for the one or more occasions of the P-CSI-RS. Additionally or alternatively, the UE may not receive explicit QCL information. As such, the UE may use a QCL relation based on an assumption (i.e., an implicit determination) and/or other information implying the QCL relation and/or QCL information.

As shown in <FIG>, in some aspects, process <NUM> may include receiving an occasion of the P-CSI-RS, of the one or more occasions of the P-CSI-RS, using a QCL relation determined based at least in part on whether a physical downlink shared channel (PDSCH) is scheduled for a same set of symbols as the occasion of the P-CSI-RS (block <NUM>). For example, the UE (e.g., using antenna <NUM>, DEMOD <NUM>, MIMO detector <NUM>, receive processor <NUM>, controller/processor <NUM>, and/or the like) may receive an occasion of the P-CSI-RS, of the one or more occasions of the P-CSI-RS, using a QCL relation determined based at least in part on whether a physical downlink shared channel (PDSCH) is scheduled for a same set of symbols as the occasion of the P-CSI-RS, as described in more detail above with regard to <FIG>.

Process <NUM> may include additional aspects, such as any single aspect and/or any combination of aspects described below and/or in connection with one or more other processes described elsewhere herein.

In a first aspect, the UE may determine the QCL relation based at least in part on whether a grant is received scheduling the PDSCH for the same set of symbols with the occasion of the P-CSI-RS. In a second aspect, alone or in combination with the first aspect, the UE may determine the QCL relation based at least in part on whether the PDSCH is scheduled for the same set of symbols as the occasion of the P-CSI-RS. In a third aspect, alone or in combination with one or more of the first and second aspects, the PDSCH is scheduled for the same set of symbols as the occasion of the P-CSI-RS, and the UE may determine the QCL relation based at least in part on a corresponding QCL relation of the PDSCH.

In a fourth aspect, alone or in combination with one or more of the first through third aspects, the PDSCH is not scheduled for the same set of symbols as the occasion of the P-CSI-RS, and the UE may determine the QCL relation based at least in part on a corresponding QCL relation of a particular control-resource set (CORESET). In a fifth aspect, alone or in combination with one or more of the first through fourth aspects, the particular CORESET is selected based at least in part on at least one of a CORESET identifier of the particular CORESET, whether a transmission configuration indicator (TCI) state is configured for the particular CORESET, a bandwidth part associated with the particular CORESET, a serving cell associated with the particular CORESET, whether a tracking reference signal or a channel state information reference signal (CSI-RS) for tracking is configured as a QCL source for the particular CORESET, or whether a slot containing the occasion of the P-CSI-RS includes the particular CORESET. In a sixth aspect, alone or in combination with one or more of the first through fifth aspects, the particular CORESET is selected based at least in part on having a lowest CORESET identifier or a highest CORESET identifier of CORESETs, the CORESETs being in a latest slot for which one or more CORESETs are configured for the UE within an active bandwidth part (BWP) of a serving cell of the UE, the selected particular CORESET with the lowest or highest CORESET identifier having a configured transmission configuration indicator (TCI) state. In other words, the selected particular CORESET with the lowest or highest CORESET identifier may be selected from a set of CORESETs having a configured TCI state, where the set of CORESETs having a configured TCI state is a subset of a plurality of configured CORESETs appearing in the latest slot for which one or more CORESETs are configured for the UE within an active BWP of a serving cell of the UE.

In a seventh aspect, alone or in combination with one or more of the first through sixth aspects, the particular CORESET is selected based at least in part on having a lowest CORESET identifier or a highest CORESET identifier of CORESETs, the CORESETs being configured for the UE within an active bandwidth part (BWP) of a serving cell of the UE, the selected particular CORESET with the lowest or highest COREST identifier having a configured transmission configuration indicator (TCI) state. In other words, the selected particular CORESET with the lowest or highest CORESET identifier may be selected from a set of CORESETs/s having a configured TCI state, where the set of CORESETs having a configured TCI state is a subset of a plurality of configured CORESETs configured for the UE within an active BWP of a serving cell of the UE. In an eighth aspect, alone or in combination with one or more of the first through seventh aspects, the particular CORESET is selected based at least in part on having a lowest CORESET identifier or a highest CORESET identifier of CORESETs, the CORESETs being in a latest slot for which one or more CORESETs are configured for the UE within an active bandwidth part (BWP) of a serving cell of the UE. In other words, the selected particular CORESET with the lowest or highest CORESET identifier may be selected from a plurality of configured CORESETs appearing in the latest slot for which one or more CORESETs are configured for the UE within an active BWP of a serving cell of the UE. In a ninth aspect, alone or in combination with one or more of the first through eighth aspects, the UE is configured with more than one active transmission configuration indicator (TCI) state.

In a tenth aspect, alone or in combination with one or more of the first through ninth aspects, the particular CORESET is selected based at least in part on having a lowest CORESET identifier or a highest CORESET identifier of CORESETs that are configured for the UE within an active bandwidth part (BWP) of a serving cell of the UE. In an eleventh aspect, alone or in combination with one or more of the first through tenth aspects, all symbols of the occasion of the P-CSI-RS overlap with the PDSCH or no symbols of the occasion of the P-CSI-RS overlap with the PDSCH. In a twelfth aspect, alone or in combination with one or more of the first through eleventh aspects, the PDSCH is received using the same set of symbols as the P-CSI-RS when the PDSCH and the occasion of the P-CSI-RS have a same active TCI state.

In a thirteenth aspect, alone or in combination with one or more of the first through twelfth aspects, the information configuring the one or more occasions of the P-CSI-RS includes information identifying another QCL relation for one or more other occasions of the P-CSI-RS. In a fourteenth aspect, alone or in combination with one or more of the first through thirteenth aspects, the one or more occasions of the P-CSI-RS are associated with a channel state information (CSI) report with a time-measurement restriction. In a fifteenth aspect, alone or in combination with one or more of the first through fourteenth aspects, the one or more occasions of the P-CSI-RS are associated with a channel state information (CSI) report without a time-measurement restriction, and the UE is to receive information identifying QCL relations configured for the one or more occasions of the P-CSI-RS before the occasion of the P-CSI-RS.

In a sixteenth aspect, alone or in combination with one or more of the first through fifteenth aspects, the information identifying the QCL relation configured for the one or more occasions of the P-CSI-RS is received via a grant. In a seventeenth aspect, alone or in combination with one or more of the first through sixteenth aspects, the UE is to report, as a UE capability, whether a P-CSI-RS associated with a CSI report without time-measurement restriction is configurable without QCL relation identification information. In an eighteenth aspect, alone or in combination with one or more of the first through seventeenth aspects, no change of active TCI states based at least in part on a media access control (MAC) control element (CE) reconfiguration message is happening during the symbols occupied by the occasion of the P-CSI-RS, and the occasion of the P-CSI-RS is a multi-symbol with time domain orthogonal cover code (TD-OCC) occasion of the P-CSI-RS.

In a nineteenth aspect, alone or in combination with one or more of the first through eighteenth aspects, the UE is configured to receive, from a base station (BS), information identifying one or more control-resource set (CORESET) identifiers associated with occasions of the P-CSI-RS received before the occasion of the P-CSI-RS, and the UE is configured to determine the QCL relation based at least in part on the information identifying the one or more CORESET identifiers. In a twentieth aspect, alone or in combination with one or more of the first through nineteenth aspects, the UE is configured to transmit UE capability information to identify one or more QCL relation derivation options. In a twenty-first aspect, alone or in combination with one or more of the first through twentieth aspects, the UE is configured with a P-CSI-RS resource set containing a plurality of CSI-RS resources, whose QCL relation is either configured for all of the plurality of CSI-RS resources or not for any of the plurality of CSI-RS resources.

Satisfying a threshold may, depending on the context, refer to a value being greater than the threshold, greater than or equal to the threshold, less than the threshold, less than or equal to the threshold, equal to the threshold, not equal to the threshold, and/or the like.

It should be apparent that systems and/or methods, described herein, may be implemented in different forms of hardware, firmware, and/or a combination of hardware and software.

Claim 1:
A method of wireless communication performed by a user equipment, UE, comprising:
receiving (<NUM>) information configuring the UE with one or more occasions of a periodic channel state information reference signal, P-CSI-RS, without associated quasi co-location, QCL, information for the one or more occasions of the P-CSI-RS; and
characterized by:
receiving (<NUM>) an occasion of the P-CSI-RS, of the one or more occasions of the P-CSI-RS, using a QCL relation determined based at least in part on whether a physical downlink shared channel, PDSCH, is scheduled for a same set of symbols as the occasion of the P-CSI-RS.