Patent Description:
<CIT> relates to beam recovery procedure for full duplex operation. 3GPP draft R1-<NUM> relates to multi-beam operation. 3GPP draft R1-<NUM> relates to multi-beam operation.

In accordance with the present invention, , a method and an apparatus are provided as set out in claims <NUM>, <NUM>, <NUM>, and <NUM>. Other aspects of the invention can be found in at least the dependent claims.

A user equipment (UE) and/or a base station may communicate in a full duplex mode in which uplink communication and downlink communication is exchanged in a same frequency band, in partially overlapped frequency bands, or in separate frequency bands at overlapping times. The UE and the base station may exchange communication using one or more directional beams. The UE may perform ongoing uplink or downlink transmissions in a half-duplex mode based on first scheduling information received from the base station. At an overlapping time, the base station may schedule additional transmission in the opposite direction with second scheduling information. The scheduled beams for the transmissions in the two directions, i.e., uplink and downlink, may not be compatible with each other for full duplex communication due to e.g., the inability to cancel or sufficiently mitigate the associated self-interference between concurrent transmission and reception on the two beams. The first beam may be selected based on a first metric for half-duplex communication (e.g., a reference signal received power (RSRP)), and the second beam may be selected based on a second metric for full-duplex communication (e.g., a signal to interference and noise ratio (SINR)). Thus, the second metric may consider self-interference that is not considered in the first metric. For example, a half-duplex mode beam may be based on the best RSRP beam (e.g. downlink beam <NUM>) among a set of candidate beams. In contrast, the full-duplex mode beam pair may be based on a best SINR beam pair that has the highest signal strength and for which the transmission (Tx) beam creates a small self-interference to its paired reception (Rx) beam (e.g. a beam pair including downlink beam <NUM> and uplink beam <NUM>). If the first transmission is scheduled for half-duplex downlink beam <NUM> at time that overlaps the second transmission that is scheduled for the UL beam <NUM> from the full-duplex beam pair, beam <NUM> may create self-interference to the downlink reception on beam <NUM>. Thus, beam <NUM> may be considered incompatible with beam <NUM> for full-duplex communication that includes transmission and reception that overlaps in time. Aspects described herein relate to methods for handling the incompatible uplink and downlink beams.

Referring again to <FIG>, in certain aspects, the UE <NUM> may include a beam management component <NUM> that may be configured to receive first scheduling information with first resources for transmissions with a first beam based on a half-duplex mode. The beam management component <NUM> may be configured to receive second scheduling information for second resources associated with a second beam that is incompatible with the first beam for full duplex communication including downlink reception and uplink transmission that overlap in time. Furthermore, the beam management component <NUM> may be configured to adjust communication in response to the first beam being incompatible with the second beam for the full duplex communication. In certain aspects, the base station <NUM> include a beam management component <NUM> that may be configured to transmit first scheduling information with first resources for transmissions with a first beam based on a half-duplex mode. The beam management component <NUM> may be configured to transmit second scheduling information for second resources associated with a second beam that is incompatible with the first beam for full duplex communication including downlink reception and uplink transmission that overlap in time. Furthermore, the beam management component <NUM> may be configured to adjust communication in response to the first beam being incompatible with the second beam for the full duplex communication.

The symbols on DL may be cyclic prefix (CP) orthogonal frequency division multiplexing (OFDM) (CP-OFDM) symbols. For slot configuration <NUM>, different numerologies µ <NUM> to <NUM> allow for <NUM>, <NUM>, <NUM>, <NUM>, and <NUM> slots, respectively, per subframe. <FIG> provide an example of slot configuration <NUM> with <NUM> symbols per slot and numerology µ=<NUM> with <NUM> slots per subframe. The slot duration is <NUM>, the subcarrier spacing is <NUM>, and the symbol duration is approximately <NUM>. Within a set of frames, there may be one or more different bandwidth parts (BWPs) (see <FIG>) that are frequency division multiplexed. Each BWP may have a particular numerology.

The physical downlink control channel (PDCCH) carries DCI within one or more control channel elements (CCEs) (e.g., <NUM>, <NUM>, <NUM>, <NUM>, or <NUM> CCEs), each CCE including six RE groups (REGs), each REG including <NUM> consecutive REs in an OFDM symbol of an RB. A PDCCH within one BWP may be referred to as a control resource set (CORESET). A UE is configured to monitor PDCCH candidates in a PDCCH search space (e.g., common search space, UE-specific search space) during PDCCH monitoring occasions on the CORESET, where the PDCCH candidates have different DCI formats and different aggregation levels. Additional BWPs may be located at greater and/or lower frequencies across the channel bandwidth. The physical broadcast channel (PBCH), which carries a master information block (MIB), may be logically grouped with the PSS and SSS to form a synchronization signal (SS)/PBCH block (also referred to as SS block (SSB)).

The PUCCH carries uplink control information (UCI), such as scheduling requests, a channel quality indicator (CQI), a precoding matrix indicator (PMI), a rank indicator (RI), and hybrid automatic repeat request (HARQ) acknowledgment (ACK) (HARQ-ACK) information (ACK / negative ACK (NACK)) feedback.

Each spatial stream may then be provided to a different antenna <NUM> via a separate transmitter <NUM> TX. Each transmitter <NUM> TX may modulate an RF carrier with a respective spatial stream for transmission.

At the UE <NUM>, each receiver <NUM> RX receives a signal through its respective antenna <NUM>. Each receiver <NUM> RX recovers information modulated onto an RF carrier and provides the information to the receive (RX) processor <NUM>.

Wireless communication systems may be configured to share available system resources and provide various telecommunication services (e.g., telephony, video, data, messaging, broadcasts, etc.) based on multiple-access technologies that support communication with multiple users. Full duplex operation in which a wireless device exchanges uplink and downlink communication that overlaps in time may enable more efficient use of the wireless spectrum. Full duplex operation may include simultaneous transmission and reception in a same frequency range, in partially overlapped frequency ranges, or in separate frequency ranges. In some examples, the frequency range may be a mmW frequency range, e.g., frequency range <NUM> (FR2). In some examples, the frequency range may be a sub-<NUM> frequency range, e.g., frequency range <NUM> (FR1). The aspects presented herein may also be applied to other frequency ranges. Full duplex capability may be supported at a base station and/or a UE. For example, a UE may transmit uplink communication from one antenna panel and may receive downlink communication with another antenna panel. For another example, a base station may transmit to one UE from one antenna panel and may receive from another UE with another antenna panel. For another example, a base station may transmit to one UE from one antenna panel and may receive from the same UE with another antenna panel. In some examples, the full duplex communication may be conditional on beam or spatial separation or other conditions.

Full duplex communication may reduce latency. For example, full duplex operation may enable a UE to receive a downlink signal in an uplink only slot, which can reduce the latency for the downlink communication. Full duplex communication may improve spectrum efficiency, e.g., spectrum efficiency per cell or per UE. Full duplex communication may enable more efficient use of wireless resources.

<FIG> illustrate various modes of full duplex communication. Full duplex communication supports transmission and reception of information over a same frequency band, over partially overlapped frequency bands, or over separate frequency bands in manner that overlap in time. In this manner, spectral efficiency may be improved with respect to the spectral efficiency of half-duplex communication, which supports transmission or reception of information in one direction at a time without overlapping uplink and downlink communication. Due to the simultaneous Tx/Rx nature of full duplex communication, a UE or a base station may experience self-interference caused by signal leakage from its local transmitter to its local receiver. In addition, the UE or base station may also experience interference from other devices, such as transmissions from a second UE or a second base station. Such interference (e.g., self-interference or interference caused by other devices) may impact the quality of the communication, or even lead to a loss of information.

<FIG> shows a first example of full duplex communication <NUM> in which a first base station 402a is in full duplex communication with a first UE 404a and a second UE 406a. The first base station 402a is a full duplex base station, whereas the first UE 404a and the second UE 406a may be configured as either a half-duplex UE or a full duplex UE. The second UE 406a may transmit a first uplink signal to the first base station 402a as well as to other base stations, such as a second base station 408a in proximity to the second UE 406a. The first base station 402a transmits a downlink signal to the first UE 404a concurrently with receiving the uplink signal from the second UE 406a. The base station 402a may experience self-interference from the receiving antenna that is receiving the uplink signal from UE 406a receiving some of the downlink signal being transmitted to the UE 404a. The base station 402a may experience additional interference due to signals from the second base station 408a. Interference may also occur at the first UE 404a based on signals from the second base station 408a as well as from uplink signals from the second UE 406a.

<FIG> shows a second example of full duplex communication <NUM> in which a first base station 402b is in full duplex communication with a first UE 404b. In this example, the first base station 402b is a full duplex base station and the first UE 404b is a full duplex UE. The first base station 402b and the UE 404b that can concurrently receive and transmit communication that overlaps in time in a same frequency band. The base station and the UE may each experience self-interference, in which a transmitted signal from the device is leaked to a receiver at the same device. The first UE 404b may experience additional interference based on one or more signals emitted from a second UE 406b and/or a second base station 408b in proximity to the first UE 404b.

<FIG> shows a third example of full duplex communication <NUM> in which a first UE 404c is a full duplex UE in communication with a first base station 402c and a second base station 408c. The first base station 402c and the second base station 408c may serve as multiple transmission and reception points (multi-TRPs) for UL and DL communication with the UE 404c. The second base station 408c may be in communication with a second UE 406c. In <FIG>, the first UE 404c may concurrently transmit an uplink signal to the first base station 402c while receiving a downlink signal from the second base station 408c. The first UE 404c may experience self-interference as a result of the first signal and the second signal being communicated simultaneously, e.g., the uplink signal may leak to, e.g., be received by, the UE's receiver. The first UE 404c may experience additional interference from the second UE 406c.

Full duplex communication may be in a same frequency band. The uplink and downlink communication may be in different frequency subbands, in the same frequency subband, or in partially overlapping frequency subbands. <FIG> illustrates a first example <NUM> and a second example <NUM> of in-band full duplex (IBFD) resources and a third example <NUM> of sub-band full-duplex resources. In IBFD, signals may be transmitted and received in overlapping times and overlapping in frequency. As shown in the first example <NUM>, a time and a frequency allocation of a UL resources <NUM> may fully overlap with a time and a frequency allocation of DL resources <NUM>. In the second example <NUM>, a time and a frequency allocation of UL resources <NUM> may partially overlap with a time and a frequency of allocation of DL resources <NUM>.

IBFD is in contrast to sub-band frequency division duplex (FDD), where uplink and downlink resources may overlap in time using different frequencies, as shown in the third example <NUM>. In the third example <NUM>, the UL resources <NUM> are separated from the DL resources <NUM> by a guard band <NUM>. The guard band may be frequency resources, or a gap in frequency resources, provided between the UL resources <NUM> and the DL resources <NUM>. Separating the UL frequency resources and the DL frequency resources with a guard band may help to reduce self-interference. UL resources and a DL resources that are immediately adjacent to each other correspond to a guard band width of <NUM>. As an output signal, e.g., from a UE transmitter may extends outside the UL resources, the guard band may reduce interference experienced by the UE. Sub-band FDD may also be referred to as "flexible duplex.

A base station may schedule a UE for half-duplex transmission or reception with a half-duplex beam and may also schedule the UE for transmission/reception with a full-duplex beam. The resources may overlap in time, but the half-duplex beam may be non-compatible for overlapping, full-duplex transmission and reception with the full-duplex beam. The beams may be non-compatible due to e.g., the inability to cancel or sufficiently mitigate the associated self-interference between concurrent transmission and reception on the two beams. The half-duplex beam may be selected based on a first metric for half-duplex communication (e.g., a reference signal received power (RSRP)), and the full-duplex beam may be selected based on a second metric for full-duplex communication (e.g., a signal to interference and noise ratio (SINR)). Thus, the second metric may consider self-interference that is not considered in the first metric. For example, a half-duplex mode beam may be based on the best RSRP beam (e.g. beam <NUM>) among a set of candidate beams. In contrast, the full-duplex mode beam pair may be based on a best SINR beam pair that has the highest signal strength and for which the transmission (Tx) beam creates a small self-interference to its paired reception (Rx) beam (e.g. a beam pair including downlink beam <NUM> and uplink beam <NUM>). If the first transmission is scheduled for half-duplex downlink beam <NUM> at time that overlaps the second transmission that is scheduled for the UL beam <NUM> from the full-duplex beam pair, beam <NUM> may create self-interference to the downlink reception on beam <NUM>. Thus, beam <NUM> may be considered incompatible with beam <NUM> for full-duplex communication that includes transmission and reception that overlaps in time. Aspects described herein relate to methods for handling the incompatible uplink and downlink beams.

<FIG> is a communication flow <NUM> between a UE <NUM> and a base station <NUM> that illustrates example aspects for beam adjustment or cancellation for such non-compatible uplink and downlink beams.

In some aspects, the UE <NUM> or base station <NUM> may apply a rule to determine a downlink beam to pair with an existing uplink beam. For example, to illustrate the concept, the base station <NUM> may schedule the UE <NUM>, e.g., at <NUM>, for uplink transmissions. The uplink transmissions may include ongoing or periodic transmissions, such as CG transmissions or uplink feedback transmissions for semi-persistent scheduling (SPS) configurations associated with one of the beams <NUM> of the UE <NUM>. The CG or uplink feedback resources may be configured/scheduled to be periodically transmitted in a half-duplex mode with the indicated beam (e.g., a half-duplex beam or a beam selected based on a half-duplex metric such as RSRP and without consideration for self-interference). The base station <NUM> may also schedule downlink transmissions to the UE <NUM>, such as CORESET/PDSCH/CSI-RS on a downlink beam, at <NUM>. The downlink beam may be a beam that is part of a full-duplex beam pair that is selected based on one or more full-duplex metrics, such as based on SINR or self-interference between beams of the beam pair. If the downlink beam scheduled at <NUM> is not compatible for full-duplex communication with the uplink beam scheduled at <NUM>, then the UE <NUM> and/or base station <NUM> may apply one or more rules to reset the downlink beam or the uplink beam or to cancel transmission/reception in order to avoid causing self-interference through overlapping uplink transmission and downlink reception on the non-compatible beams. For example, the UE <NUM> or base station <NUM> may apply a rule to determine a downlink beam to pair with an existing uplink beam.

In some aspects, the UE <NUM> or base station <NUM> may apply a rule to determine an uplink beam to pair with an existing downlink beam. The base station <NUM> may schedule the UE <NUM>, at <NUM>, for reception of downlink transmissions that are transmitted in a half-duplex mode with a half-duplex beam (e.g., a beam selected based on a half-duplex metric such as RSRP and without consideration for self-interference). For example, the downlink transmissions may include ongoing or periodic downlink transmissions, such as downlink SPS transmissions, or downlink feedback for CG configurations from the UE. At <NUM>, the base station <NUM> may schedule the UE <NUM> for uplink transmissions, such as PUCCH/PUSCH/SRS with an uplink beam (e.g., one of beams <NUM>) that is part of a full-duplex beam pair. The full-duplex beam pair may be selected based on one or more full-duplex metrics that include self-interference between the beams in the beam pair. If the uplink beam scheduled at <NUM> is not compatible for full-duplex communication with the downlink beam scheduled at <NUM>, then the UE <NUM> and/or base station <NUM> may apply one or more rules to reset the downlink beam or the uplink beam or to cancel transmission/reception in order to avoid causing self-interference through overlapping uplink transmission and downlink reception on the non-compatible beams. For example, the UE <NUM> or base station <NUM> may apply a rule to determine an uplink beam to pair with an existing downlink beam.

As illustrated at <NUM>, the UE <NUM> may receive from the base station <NUM>, and the base station <NUM> may transmit to the UE <NUM>, first scheduling information with first resources for transmissions (e.g., uplink or downlink) with a first beam based on a half-duplex mode. The scheduling information may be for periodic resources, such as based on a CG, SPS, or feedback based on the CG or SPS. At <NUM>, the UE <NUM> may receive from the base station <NUM>, and the base station <NUM> may transmit to the UE <NUM>, second scheduling information for second resources associated with a second beam that is incompatible with the first beam for full duplex communication, e.g., overlapping transmission and reception in a same frequency range, in partially overlapped frequency ranges, or in separate frequency ranges.

As illustrated at 609A, the UE <NUM> may determine that the first beam associated with the first resources scheduled at <NUM> are non-compatible with full-duplex communication with the second beam associated with the second resources scheduled at <NUM>. For example, the UE may determine that transmission on the first beam will cause interference to concurrent reception on the second beam or that transmission on the second beam will cause interference to concurrent reception on the second beam. Similarly, the base station <NUM> may detect or determine, at 609B, that the two beams are non-compatible for uplink/downlink communication in a full-duplex mode.

At <NUM>, the UE <NUM> may adjust communication in response to the first beam being incompatible with the second beam for the full duplex communication. In one aspect, adjusting the communication may comprise resetting the first beam in response to the first beam being incompatible with the second beam for the full duplex communication. For example, if a downlink beam, scheduled at <NUM>, is non-compatible with an uplink beam, scheduled at <NUM>, the UE may reset the uplink beam. In some aspects, the base station <NUM> may indicate a full-duplex beam pair in a TCI state of the scheduled downlink transmissions (e.g., scheduled at <NUM>) with a bi-directional beam pair: one beam for downlink and one beam for uplink. As illustrated at <NUM>, the UE <NUM> may reset the uplink beam, at <NUM>, for the first resources scheduled at <NUM> based on the TCI state indication's uplink beam from the full-duplex beam pair scheduled at <NUM>. The base station <NUM> may similarly reset the uplink beam, at <NUM>.

In another example, if an uplink beam, scheduled at <NUM>, is non-compatible with a downlink beam, scheduled at <NUM>, the UE may reset the downlink beam. In some aspects, the base station <NUM> may indicate a full-duplex beam pair in a TCI state of the scheduled uplink transmissions (e.g., scheduled at <NUM>) with a bi-directional beam pair: one beam for downlink and one beam for uplink. As illustrated at <NUM>, the UE <NUM> may reset the downlink beam, at <NUM>, for the first resources scheduled at <NUM> based on the TCI state indication's downlink beam associated with the bi-directional beam pair from the full-duplex beam pair scheduled at <NUM>. The base station <NUM> may similarly reset the downlink beam, at <NUM>.

In some aspects, the UE <NUM> may find the information in a beam failure detection (BFD)/radio link measurement (RLM) reference signal (RS) configuration, e.g., indicating a paired uplink beam in an interference measurement resource (IMR) RS configuration with a full duplex downlink beam associated with the downlink transmissions scheduled at <NUM>. The UE may reset the uplink beam, at <NUM>, for the transmission scheduled at <NUM>, to the paired uplink beam based on the information. The UE <NUM> may use the reset beam to transmit the uplink transmission <NUM> concurrently with reception of the downlink transmission <NUM>, e.g., in a full-duplex mode. The base station <NUM> may similarly reset the uplink beam, at <NUM>. The UE may similarly reset the downlink beam, at <NUM>, for the transmission scheduled at <NUM>, to the paired downlink beam based on the information. The UE <NUM> may use the reset beam to receive the downlink transmission <NUM> concurrently with transmission of the uplink transmission <NUM>, e.g., in a full-duplex mode. The base station <NUM> may similarly reset the downlink beam, at <NUM>.

In some aspects, the UE <NUM> may reset the uplink beam, at <NUM>, for the uplink transmission scheduled at <NUM> based on a self-interference measurement (SIM)/beam management (BM) measurement report. The UE may find the candidate uplink beam that pairs with the full-duplex downlink beam associated with the scheduled downlink transmissions, e.g., at <NUM>, in the latest measurement information. The UE <NUM> may reset the uplink beam, or use the uplink beam, based on the latest measurement information. The UE <NUM> may use the reset beam to transmit the uplink transmission <NUM> concurrently with reception of the downlink transmission <NUM>, e.g., in a full-duplex mode. The base station <NUM> may similarly reset the uplink beam, at <NUM>. The UE may similarly reset the downlink beam, at <NUM>, for the transmission scheduled at <NUM>, to the paired downlink beam based on the latest measurement information. The UE <NUM> may use the reset beam to receive the downlink transmission <NUM> concurrently with transmission of the uplink transmission <NUM>, e.g., in a full-duplex mode. The base station <NUM> may similarly reset the downlink beam, at <NUM>.

In some aspects, if there are overlapping RACH occasions with downlink SSBs in a full-duplex mode, the UE <NUM> may use the beam that is associated with transmitting a RACH preamble to pair with a full-duplex downlink beam associated with the scheduled downlink transmissions, e.g., scheduled at <NUM>. Thus, the UE <NUM> may reset the uplink beam, at <NUM>, for the transmission scheduled at <NUM> for the first resources based on the RACH preamble beam. The UE <NUM> may use the reset beam to transmit the uplink transmission <NUM> concurrently with reception of the downlink transmission <NUM>, e.g., in a full-duplex mode. The base station <NUM> may similarly reset the uplink beam, at <NUM>. The UE may similarly use the SSB beam to pair with the full-duplex uplink beam associated with the scheduled uplink transmission, at <NUM>, to reset the downlink beam, at <NUM>, for the transmission scheduled at <NUM>. The UE <NUM> may use the reset beam to receive the downlink transmission <NUM> concurrently with transmission of the uplink transmission <NUM>, e.g., in a full-duplex mode. The base station <NUM> may similarly reset the downlink beam, at <NUM>.

In another aspect, adjusting the communication may comprise adjusting the second beam for the full duplex communication. The UE <NUM>, and similarly the base station <NUM>, may reset the downlink beam, at <NUM> or <NUM>, if a first beam for an uplink transmission scheduled at <NUM> would cause interference to the second beam for the downlink reception scheduled at <NUM>. As an example, to illustrate the concept, if an uplink transmission on a first beam would cause interference to downlink reception scheduled on a second beam, the UE may reset the downlink beam based on a TCI indication to pair with the uplink transmission. The uplink transmission may be for ongoing or periodic uplink transmissions, such as an uplink CG transmission or uplink feedback transmissions for SPS configurations that are periodically transmitted in a full-duplex mode with a TCI state including a bi-directional beam pair: one beam for downlink and one beam for uplink. The UE <NUM> may reset the downlink beam, at <NUM>, based on the TCI state indication to pair with the CG or feedback for SPS. The UE <NUM> may use the reset beam to receive the downlink transmission <NUM> concurrently with transmission of the uplink transmission <NUM>, e.g., in a full-duplex mode. The base station <NUM> may similarly reset the downlink beam, at <NUM>.

In another example, if an uplink beam, scheduled at <NUM>, is non-compatible with a downlink beam, scheduled at <NUM>, the UE may reset the uplink beam. In some aspects, the base station <NUM> may indicate a full-duplex beam pair in a TCI state of the scheduled downlink transmissions (e.g., scheduled at <NUM>) with a bi-directional beam pair: one beam for downlink and one beam for uplink. As illustrated at <NUM>, the UE <NUM> may reset the uplink beam for the second resources scheduled at <NUM> based on the TCI state indication's uplink beam from the full-duplex beam pair scheduled at <NUM>. The UE <NUM> may use the reset uplink beam to transmit the uplink transmission <NUM> concurrently with reception of the downlink transmission <NUM> in a full-duplex mode. The base station <NUM> may similarly reset the uplink beam, at <NUM>.

In some aspects, the UE <NUM> may find the information in the BFD/RLM RS configuration, e.g., with a paired downlink beam in channel measurement resource (CMR) RS configuration with full-duplex uplink beam associated with the uplink transmissions. If the downlink beam, scheduled at <NUM>, is non-compatible with an uplink beam, scheduled at <NUM>, the UE <NUM> may reset the downlink beam, at <NUM>, based on the information. The UE <NUM> may use the reset beam to receive the downlink transmission <NUM> concurrently with transmission of the uplink transmission <NUM>, e.g., in a full-duplex mode. The base station <NUM> may similarly reset the downlink beam, at <NUM>. In some aspects, if an uplink beam, scheduled at <NUM>, is non-compatible with a downlink beam, scheduled at <NUM>, the UE may reset the uplink beam, at <NUM>, based on information in a BFD/RLM RS configuration based on a paired uplink beam in an IMR RS configuration with a full-duplex downlink beam associated with the downlink transmission, e.g., scheduled at <NUM>. The UE <NUM> may use the reset uplink beam to transmit the uplink transmission <NUM> concurrently with reception of the downlink transmission <NUM> in a full-duplex mode. The base station <NUM> may similarly reset the uplink beam, at <NUM>.

In some aspects, if a downlink beam, scheduled at <NUM>, is non-compatible with an uplink beam, scheduled at <NUM>, the UE <NUM> may reset the downlink beam, at <NUM>, based on the SIM/BM measurement report. The UE <NUM> may find a candidate downlink beam paired with the full-duplex uplink beam associated with the periodic uplink transmissions in the latest measurement information. The UE <NUM> may reset the downlink beam, at <NUM>, based on the information. The UE <NUM> may use the reset beam to receive the downlink transmission <NUM> concurrently with transmission of the uplink transmission <NUM>, e.g., in a full-duplex mode. The base station <NUM> may similarly reset the downlink beam, at <NUM>. In some aspects, if an uplink beam, scheduled at <NUM>, is non-compatible with a downlink beam, scheduled at <NUM>, the UE may reset the uplink beam, at <NUM>, based on an SIM/BM report. The UE may find the candidate uplink beam paired with the full-duplex downlink beam associated with the downlink transmissions, e.g., scheduled at <NUM>, in latest measurement information. The UE <NUM> may use the reset uplink beam to transmit the uplink transmission <NUM> concurrently with reception of the downlink transmission <NUM> in a full-duplex mode. The base station <NUM> may similarly reset the uplink beam, at <NUM>.

In some aspects, if there are overlapping RACH occasions with downlink SSBs in a full-duplex mode, and if a downlink beam, scheduled at <NUM>, is non-compatible with an uplink beam, scheduled at <NUM>, the UE <NUM> may use the SSB beam to pair with a full-duplex uplink beam associated with the uplink transmissions. The UE <NUM> may reset the downlink beam, at <NUM>, based on the SSB. The UE <NUM> may use the reset beam to receive the downlink transmission <NUM> concurrently with transmission of the uplink transmission <NUM>, e.g., in a full-duplex mode. The base station <NUM> may similarly reset the downlink beam, at <NUM>.

In some aspects, if an uplink beam, scheduled at <NUM>, is non-compatible with a downlink beam, scheduled at <NUM>, the UE may reset the uplink beam, at <NUM>, based on overlapping RACH occasions with downlink SSBs in a full-duplex mode. The UE <NUM> may use the uplink beam that is associated with transmitting a RACH preamble to pair with the full-duplex downlink beam associated with the downlink transmission scheduled at <NUM>. Thus, the UE may reset the uplink beam based on the RACH preamble beam. The UE <NUM> may use the reset uplink beam to transmit the uplink transmission <NUM> concurrently with reception of the downlink transmission <NUM> in a full-duplex mode. The base station <NUM> may similarly reset the uplink beam, at <NUM>.

In yet another aspect, adjusting the communication may comprise canceling transmission or reception of one or more of the transmissions based on the first resources in response to the first beam being incompatible with the second beam for the full duplex communication, as shown at <NUM>. In a further aspect, adjusting the communication may comprise canceling transmission or reception of the second resources in response to the first beam being incompatible with the second beam for the full duplex communication. For example, if a downlink beam for reception of a downlink transmission, scheduled at <NUM>, is non-compatible with an existing uplink transmission, scheduled at <NUM>, the UE may cancel or skip reception of the downlink transmission. The UE <NUM> may transmit the uplink transmission <NUM> and may skip the reception of the downlink transmission <NUM>. In other aspects, if a downlink beam for reception of a downlink transmission, scheduled at <NUM>, is non-compatible with an existing uplink transmission, scheduled at <NUM>, the UE may cancel or skip transmission of the uplink transmission. The UE <NUM> may receive the downlink transmission <NUM> and may skip the uplink transmission <NUM>. The downlink transmission may be a dynamic, or non-periodic, transmission, and the uplink transmission may be an ongoing periodic transmission. In other examples, the downlink transmission may be a periodic transmission and the uplink transmission may be a dynamic, or non-periodic, transmission.

If an uplink beam for an uplink transmission, scheduled at <NUM>, is non-compatible with a beam for reception of an existing downlink transmission, scheduled at <NUM>, the UE may cancel or skip reception of the downlink transmission. The UE <NUM> may transmit the uplink transmission <NUM> and may skip the reception of the downlink transmission <NUM>. In other aspects, if an uplink beam for an uplink transmission, scheduled at <NUM>, is non-compatible with a beam for reception of an existing downlink transmission, scheduled at <NUM>, the UE may cancel or skip transmission of the uplink transmission. The UE <NUM> may receive the downlink transmission <NUM> and may skip the uplink transmission <NUM>. The downlink transmission may be a dynamic, or non-periodic, transmission, and the uplink transmission may be an ongoing periodic transmission. In other examples, the downlink transmission may be a periodic transmission and the uplink transmission may be a dynamic, or non-periodic, transmission.

At <NUM>, the base station <NUM> may similarly adjust communication in response to the first beam being incompatible with the second beam for the full duplex communication. In one aspect, adjusting the communication may comprise adjusting the first beam in response to the first beam being incompatible with the second beam for the full duplex communication. In another aspect, adjusting the communication may comprise adjusting the second beam for the full duplex communication. In yet another aspect, adjusting the communication may comprise canceling transmission or reception of one or more of the periodic transmissions in response to the first beam being incompatible with the second beam for the full duplex communication. In a further aspect, adjusting the communication may comprise canceling transmission or reception of the second resources in response to the first beam being incompatible with the second beam for the full duplex communication.

<FIG> is a diagram <NUM> illustrating example aspects of the first scheduling information and the second scheduling information. The first scheduling information may relate to ongoing periodic transmissions in the half duplex mode, in some examples. In one aspect, there may be ongoing uplink configured grant (CG) transmissions or uplink feedback transmissions for semi-persistent scheduling (SPS) configurations that are periodically transmitted in the half duplex mode according to the first scheduling information, and the base station may also schedule downlink transmissions, such as transmissions of a CORESET, a PDSCH, or a CSI-RS, with the second scheduling information. The downlink transmissions may not be compatible with the beam scheduled for the ongoing periodic uplink transmissions. For example, use of the uplink beam may cause self-interference to reception on the downlink beam if used for full duplex communication. Therefore, in this aspect, the first scheduling information, which may be associated with a first beam, may be for uplink resources for periodic uplink transmissions with an uplink beam and the second scheduling information, which may be associated with a second beam, may be for downlink resources for reception of a downlink transmission with a downlink beam that is incompatible, for the full duplex communication, with the uplink beam.

In another aspect, there may be ongoing, periodic downlink transmissions such as downlink SPS transmissions or downlink feedback transmissions for CG configurations that are transmitted in the half duplex mode according to the first scheduling information, while at the same time the base station may also schedule uplink transmissions, such as transmissions of a PUCCH, a PUSCH, or an SRS, with the second scheduling information. The beam for the uplink transmissions may not be compatible with the beam for the preexisting periodic downlink transmissions. For example, use of the uplink beam may cause self-interference to reception on the downlink beam if used for full duplex communication. Therefore, in this aspect, the first scheduling information, which may be associated with a first beam, may be for downlink resources for periodic reception of downlink transmissions with a downlink beam and the second scheduling information, which may be associated with a second beam, may be for uplink resources for an uplink transmission with an uplink beam that is incompatible, for the full duplex communication, with the downlink beam.

<FIG> is a flowchart <NUM> of a method of wireless communication. The method may be performed by a UE (e.g., the UE <NUM>; the UE <NUM>; the apparatus <NUM>). Optional aspects are illustrated with a dashed line. The method may enable a UE to address potential self-interference that may occur with full-duplex communication based on incompatible beams, such as described in connection with the example aspects of <FIG>.

At <NUM>, the UE may receive first scheduling information with first resources for transmissions with a first beam based on a half-duplex mode. For example, <NUM> may be performed by the first scheduling information component <NUM> of <FIG> via the reception component <NUM>. The transmissions may be periodic or may be dynamic or aperiodic. The first scheduling information may be for one or more uplink transmissions. The first scheduling information may provide a grant for periodic uplink transmissions, such as a CG or uplink feedback associated with SPS transmissions. The first scheduling information may be for reception of one or more downlink transmissions. The first scheduling information may be for reception of periodic downlink transmissions, such as SPS transmissions or downlink feedback for CG transmissions.

At <NUM>, the UE may receive second scheduling information for second resources associated with a second beam that is incompatible with the first beam for full duplex communication including downlink reception and uplink transmission that overlap in time. For example, the first beam may be selected based on a first metric (e.g., RSRP) for the half-duplex mode and the second beam may be selected based on a second metric (e.g., SINR or SIM) for a full-duplex mode wherein the second beam is selected to be paired with a third beam for the full-duplex mode. The second metric may include a self-interference metric that is not comprised in the first metric. The second beam may be incompatible with the first beam based on self-interference between overlapping full-duplex communication on the first beam and the second beam as a pair for the full-duplex mode. For example, an uplink transmission on the first or second beam may cause a threshold level of self-interference to downlink reception on the other beam in a full-duplex mode. For example, <NUM> may be performed by the second scheduling information component <NUM> of <FIG> via the reception component <NUM>. The second scheduling information may be for reception of a downlink transmission, such as a CORESET, PDSCH, and/or CSI-RS. The second scheduling information may be for an uplink transmission, such as for PUCCH, PUSCH, and/or SRS.

At <NUM>, the UE may adjust communication in response to the first beam being incompatible with the second beam for the full duplex communication. For example, <NUM> may be performed by the communication adjustment component <NUM> of <FIG>. The UE may adjust the communication, at <NUM>, based on any of the aspects described in connection with <NUM> in <FIG>, for example.

In one aspect, adjusting the communication at <NUM> may comprise, at 806a, resetting the first beam for transmission or reception of the first resources in response to the first beam being incompatible with the second beam for the full duplex communication. In particular, the UE may transmit or receive the periodic transmissions using a paired beam and not the first beam indicated in the first scheduling information. The paired beam may comprise the second beam, but not the first beam. As described above, in different aspects, the first beam may correspond to either an uplink beam with which existing periodic uplink transmissions on the uplink resources are performed, or a downlink beam with which existing periodic downlink transmissions on the downlink resources are performed. In case the first beam corresponds to an uplink beam, the second beam may correspond to a downlink beam; and in case the first beam corresponds to a downlink beam, the second beam may correspond to an uplink beam. In case the second beam corresponds to a downlink beam, the paired beam may comprise the second beam and an uplink beam that is not the first beam for the full duplex communication, and vice versa. <FIG> are flowcharts 900A-D of methods of adjusting the first beam according to different aspects.

In one aspect, the base station may indicate a beam pair (one uplink beam and one downlink beam) for the full duplex communication in a TCI state field in the second scheduling information. It should be appreciated that a TCI state may define a quasi co-location (QCL) assumption between a source RS and a target RS. Referring to <FIG>, at <NUM>, the UE may receive, in a transmission configuration indicator (TCI) state field in the second scheduling information, an indication of a full duplex beam pair comprising a paired beam that is paired with the second beam. At <NUM>, the UE may transmit or receive one or more transmission using the paired beam indicated in the second scheduling information and not the first beam indicated in the first scheduling information.

In another aspect, the UE may obtain the beam pair information in a reference signal configuration for beam failure detection or radio link management. If the second beam is a downlink beam, a beam indicated in an interference measurement resource (IMR) reference signal (RS) configuration may be paired with the second beam for the full duplex communication. On the other hand, if the second beam is an uplink beam, a beam indicated in a channel measurement resource (CMR) reference signal (RS) configuration may be paired with the second beam for the full duplex communication. It should be appreciated that the IMR may be a CSI-RS or a CSI-interference measurement (CSI-IM) resource, and the CMR may be a CSI-RS resource. Referring to <FIG>, at <NUM>, the UE may receive a reference signal configuration for beam failure detection or radio link management that indicates a paired beam that is paired with the second beam. At <NUM>, the UE may transmit or receive one or more transmission using the paired beam and not the first beam indicated in the first scheduling information.

In yet another aspect, the UE may obtain the beam pair information based on a latest self-interference measurement (SIM) or beam management (BM) measurement report. A best candidate beam determined based on the latest SIM or BM measurement report may be paired with the second beam for the full duplex communication. Referring to <FIG>, at <NUM>, the UE may perform a self-interference measurement (SIM) or a beam management (BM) measurement. At <NUM>, the UE may determine a paired beam for the full duplex communication with the second beam based on the SIM or the BM measurement. At <NUM>, the UE may transmit or receive one or more transmission using the paired beam and not the first beam indicated in the first scheduling information.

In still another aspect, there may be overlapping random access channel (RACH) occasions with downlink synchronization signal blocks (SSBs). If the second beam is a downlink beam, a beam associated with transmitting the RACH preamble may be paired with the second beam for the full duplex communication. On the other hand, if the second beam is an uplink beam, a beam associated with transmitting the SSB may be paired with the second beam for the full duplex communication. Referring to <FIG>, at <NUM>, the UE may identify a paired beam for the full duplex communication with the second beam based on a downlink synchronization signal block (SSB) that overlaps with random access channel (RACH) occasions in full-duplex mode. At <NUM>, the UE may transmit or receive one or more transmission using the paired beam and not the first beam indicated in the first scheduling information.

In another aspect, adjusting the communication at <NUM> may comprise, at 806b, resetting the second beam for transmission or reception of second resources. In particular, the UE may transmit or receive the communication based on the second scheduling information using the paired beam indicated in the first scheduling information and not the second beam indicated in the second scheduling information. The paired beam may comprise the first beam, but not the second beam. As described above, in different aspects, the second beam may correspond to either a downlink beam when the first beam corresponds to an uplink beam, or an uplink beam when the first beam corresponds to a downlink beam. In case the first beam corresponds to an uplink beam, the paired beam may comprise the first beam and a downlink beam that is not the second beam for the full duplex communication, and vice versa. <FIG> are flowcharts 1000A-D of methods of adjusting the second beam according to different aspects.

In one aspect, the base station may indicate a beam pair (one uplink beam and one downlink beam) for the full duplex communication in a transmission configuration indicator (TCI) state field in the first scheduling information. It should be appreciated that a TCI state may define a quasi co-location (QCL) assumption between a source reference signal (RS) and a target RS. Referring to <FIG>, at <NUM>, the UE may receive, in a transmission configuration indicator (TCI) state field in the first scheduling information, an indication of a full duplex beam pair comprising a paired beam that is paired with the first beam. At <NUM>, the UE may transmit or receive the communication based on the second scheduling information using the paired beam indicated in the first scheduling information and not the second beam indicated in the second scheduling information.

In another aspect, the UE may obtain the beam pair information in a reference signal configuration for beam failure detection or radio link management. If the first beam is an uplink beam, a beam indicated in a channel measurement resource (CMR) reference signal (RS) configuration may be paired with the first beam for the full duplex communication. On the other hand, if the first beam is a downlink beam, a beam indicated in an interference measurement resource (IMR) reference signal (RS) configuration may be paired with the first beam for the full duplex communication. It should be appreciated that the IMR may be a CSI-RS or a CSI-interference measurement (CSI-IM) resource, and the CMR may be a CSI-RS resource. Referring to <FIG>, at <NUM>, the UE may receive a reference signal configuration for beam failure detection or radio link management that indicates a paired beam that is paired with the first beam. At <NUM>, the UE may transmit or receive the communication based on the second scheduling information using the paired beam indicated in the first scheduling information and not the second beam indicated in the second scheduling information.

In yet another aspect, the UE may obtain the beam pair information based on a latest self-interference measurement (SIM) or beam management (BM) measurement report. A best candidate beam determined based on the latest SIM or BM measurement report may be paired with the first beam for the full duplex communication. Referring to <FIG>, at <NUM>, the UE may perform a self-interference measurement (SIM) or a beam management (BM) measurement. At <NUM>, the UE may determine a paired beam for the full duplex communication with the first beam based on the SIM or the BM measurement. At <NUM>, the UE may transmit or receive the communication based on the second scheduling information using the paired beam indicated in the first scheduling information and not the second beam indicated in the second scheduling information.

In still another aspect, there may be overlapping random access channel (RACH) occasions with downlink synchronization signal blocks (SSBs). If the first beam is an uplink beam, a beam associated with transmitting the SSB may be paired with the first beam for the full duplex communication. On the other hand, if the first beam is a downlink beam, a beam associated with transmitting the RACH preamble may be paired with the first beam for the full duplex communication. Referring to <FIG>, at <NUM>, the UE may identify a paired beam for the full duplex communication with the first beam based on a downlink synchronization signal block (SSB) that overlaps with random access channel (RACH) occasions in full-duplex mode. At <NUM>, the UE may transmit or receive the communication based on the second scheduling information using the paired downlink beam indicated in the first scheduling information and not the second beam indicated in the second scheduling information.

In yet another aspect, adjusting the communication at <NUM> may comprise, at 806c, canceling transmission or reception of one or more transmissions based on the first resources in response to the first beam being incompatible with the second beam for the full duplex communication. In a further aspect, adjusting the communication at <NUM> may comprise, at 806d, canceling transmission or reception of the second resources in response to the first beam being incompatible with the second beam for the full duplex communication.

<FIG> is a flowchart <NUM> of a method of wireless communication. The method may be performed by a base station (e.g., the base station <NUM>/<NUM>; the base station <NUM>; the apparatus <NUM>). Optional aspects are illustrated with a dashed line. The method may enable a base station to address potential self-interference that may occur with full-duplex communication based on incompatible beams, such as described in connection with the example aspects of <FIG>.

At <NUM>, the base station may transmit first scheduling information with first resources for transmissions with a first beam based on a half-duplex mode. For example, <NUM> may be performed by the first scheduling information component <NUM> of <FIG> via the transmission component <NUM>. The transmissions may be periodic or may be dynamic or aperiodic. The first scheduling information may be for one or more uplink transmissions. The first scheduling information may provide a grant for periodic uplink transmissions, such as a CG or uplink feedback associated with SPS transmissions. The first scheduling information may be for reception of one or more downlink transmissions. The first scheduling information may be for reception of periodic downlink transmissions, such as SPS transmissions or downlink feedback for CG transmissions.

At <NUM>, the base station may transmit second scheduling information for second resources associated with a second beam that is incompatible with the first beam including downlink transmission and uplink reception that overlap in time. For example, the first beam may be selected based on a first metric (e.g., RSRP) for the half-duplex mode and the second beam may be selected based on a second metric (e.g., SINR or SIM) for a full-duplex mode wherein the second beam is selected to be paired with a third beam for the full-duplex mode. The second metric may include a self-interference metric that is not comprised in the first metric. The second beam may be incompatible with the first beam based on self-interference between overlapping full-duplex communication on the first beam and the second beam as a pair for the full-duplex mode. For example, an uplink transmission on the first or second beam may cause a threshold level of self-interference to downlink reception on the other beam in a full-duplex mode. The second scheduling information may be for reception of a downlink transmission, such as a CORESET, PDSCH, and/or CSI-RS. The second scheduling information may be for an uplink transmission, such as for PUCCH, PUSCH, and/or SRS. For example, <NUM> may be performed by the second scheduling information component <NUM> of <FIG> via the transmission component <NUM>.

At <NUM>, the base station may adjust communication in response to the first beam being incompatible with the second beam for the full duplex communication. For example, <NUM> may be performed by the communication adjustment component <NUM> of <FIG>. The base station may adjust the communication, at <NUM>, based on any of the aspects described in connection with <NUM> in <FIG>, for example.

In one aspect, adjusting the communication at <NUM> may comprise, at 1106a, adjusting the first beam in response to the first beam being incompatible with the second beam for the full duplex communication. In particular, the base station may transmit or receive the periodic transmissions using a paired beam and not the first beam indicated in the first scheduling information. The paired beam may comprise the second beam, but not the first beam. As described above, in different aspects, the first beam may correspond to either an uplink beam with which preexisting periodic uplink transmissions on the uplink resources are performed, or a downlink beam with which preexisting periodic downlink transmissions on the downlink resources are performed. In case the first beam corresponds to an uplink beam, the second beam may correspond to a downlink beam; and in case the first beam corresponds to a downlink beam, the second beam may correspond to an uplink beam. In case the second beam corresponds to a downlink beam, the paired beam may comprise the second beam and an uplink beam that is not the first beam for the full duplex communication, and vice versa. <FIG> are flowcharts 1200A-D of methods of adjusting the first beam according to different aspects.

In one aspect, the base station may indicate a beam pair (one uplink beam and one downlink beam) for the full duplex communication in a transmission configuration indicator (TCI) state field in the second scheduling information. It should be appreciated that a TCI state may define a quasi co-location (QCL) assumption between a source reference signal (RS) and a target RS. Referring to <FIG>, at <NUM>, the base station may transmit, in a transmission configuration indicator (TCI) state field in the second scheduling information, an indication of a full duplex beam pair comprising a paired beam that is paired with the second beam. At <NUM>, the base station may transmit or receive one or more transmission using the paired beam indicated in the second scheduling information and not the first beam indicated in the first scheduling information.

In another aspect, the UE may obtain the beam pair information in a reference signal configuration for beam failure detection or radio link management. If the second beam is a downlink beam, a beam indicated in an interference measurement resource (IMR) reference signal (RS) configuration may be paired with the second beam for the full duplex communication. On the other hand, if the second beam is an uplink beam, a beam indicated in a channel measurement resource (CMR) reference signal (RS) configuration may be paired with the second beam for the full duplex communication. It should be appreciated that the IMR may be a CSI-RS or a CSI-interference measurement (CSI-IM) resource, and the CMR may be a CSI-RS resource. Referring to <FIG>, at <NUM>, the base station may transmit a reference signal configuration for beam failure detection or radio link management that indicates a paired beam that is paired with the second beam. At <NUM>, the base station may transmit or receive one or more transmission using the paired beam and not the first beam indicated in the first scheduling information.

In yet another aspect, the UE may obtain the beam pair information based on a latest self-interference measurement (SIM) or beam management (BM) measurement report. A best candidate beam determined based on the latest SIM or BM measurement report may be paired with the second beam for the full duplex communication. Referring to <FIG>, at <NUM>, the base station may receive an indication of a paired beam for the full duplex communication with the second beam. The paired beam may be determined based on a self-interference measurement (SIM) or a beam management (BM) measurement at a user equipment (UE). At <NUM>, the base station may transmit or receive one or more transmission using the paired beam and not the first beam indicated in the first scheduling information.

In still another aspect, there may be overlapping random access channel (RACH) occasions with downlink synchronization signal blocks (SSBs). If the second beam is a downlink beam, a beam associated with transmitting the RACH preamble may be paired with the second beam for the full duplex communication. On the other hand, if the second beam is an uplink beam, a beam associated with transmitting the SSB may be paired with the second beam for the full duplex communication. Referring to <FIG>, at <NUM>, the UE may receive an indication of a paired beam for the full duplex communication with the second beam. The paired beam may be identified at a user equipment (UE) based on a downlink synchronization signal block (SSB) that overlaps with random access channel (RACH) occasions in full-duplex mode. At <NUM>, the base station may transmit or receive one or more transmission using the paired beam and not the first beam indicated in the first scheduling information.

In another aspect, adjusting the communication at <NUM> may comprise, at 1106b, adjusting the second beam for the full duplex communication. In particular, the base station may transmit or receive the communication based on the second scheduling information using the paired beam indicated in the first scheduling information and not the second beam indicated in the second scheduling information. The paired beam may comprise the first beam, but not the second beam. As described above, in different aspects, the second beam may correspond to either a downlink beam when the first beam corresponds to an uplink beam, or an uplink beam when the first beam corresponds to a downlink beam. In case the first beam corresponds to an uplink beam, the paired beam may comprise the first beam and a downlink beam that is not the second beam for the full duplex communication, and vice versa. <FIG> are flowcharts 1300A-D of methods of adjusting the second beam according to different aspects.

In one aspect, the base station may indicate a beam pair (one uplink beam and one downlink beam) for the full duplex communication in a transmission configuration indicator (TCI) state field in the first scheduling information. It should be appreciated that a TCI state may define a quasi co-location (QCL) assumption between a source reference signal (RS) and a target RS. Referring to <FIG>, at <NUM>, the base station may transmit, in a transmission configuration indicator (TCI) state field in the first scheduling information, an indication of a full duplex beam pair comprising a paired beam that is paired with the first beam. At <NUM>, the base station may transmit or receive the communication based on the second scheduling information using the paired beam indicated in the first scheduling information and not the second beam indicated in the second scheduling information.

In another aspect, the UE may obtain the beam pair information in a reference signal configuration for beam failure detection or radio link management. If the first beam is an uplink beam, a beam indicated in a channel measurement resource (CMR) reference signal (RS) configuration may be paired with the first beam for the full duplex communication. On the other hand, if the first beam is a downlink beam, a beam indicated in an interference measurement resource (IMR) reference signal (RS) configuration may be paired with the first beam for the full duplex communication. It should be appreciated that the IMR may be a CSI-RS or a CSI-interference measurement (CSI-IM) resource, and the CMR may be a CSI-RS resource. Referring to <FIG>, at <NUM>, the base station may transmit a reference signal configuration for beam failure detection or radio link management that indicates a paired beam that is paired with the first beam. At <NUM>, the base station may transmit or receive the communication based on the second scheduling information using the paired beam indicated in the first scheduling information and not the second beam indicated in the second scheduling information.

In yet another aspect, the UE may obtain the beam pair information based on a latest self-interference measurement (SIM) or beam management (BM) measurement report. A best candidate beam determined based on the latest SIM or BM measurement report may be paired with the first beam for the full duplex communication. Referring to <FIG>, at <NUM>, the base station may receive an indication of a paired beam for the full duplex communication with the first beam. The paired beam may be determined based on a self-interference measurement (SIM) or a beam management (BM) measurement at a user equipment (UE). At <NUM>, the base station may transmit or receive the communication based on the second scheduling information using the paired beam indicated in the first scheduling information and not the second beam indicated in the second scheduling information.

In still another aspect, there may be overlapping random access channel (RACH) occasions with downlink synchronization signal blocks (SSBs). If the first beam is an uplink beam, a beam associated with transmitting the SSB may be paired with the first beam for the full duplex communication. On the other hand, if the first beam is a downlink beam, a beam associated with transmitting the RACH preamble may be paired with the first beam for the full duplex communication. Referring to <FIG>, at <NUM>, the base station may receive an indication of a paired beam for the full duplex communication with the first beam. The paired beam may be identified at a user equipment (UE) based on a downlink synchronization signal block (SSB) that overlaps with random access channel (RACH) occasions in full-duplex mode. At <NUM>, the base station may transmit or receive the communication based on the second scheduling information using the paired downlink beam indicated in the first scheduling information and not the second beam indicated in the second scheduling information.

In yet another aspect, adjusting the communication at <NUM> may comprise, at 1106c, canceling transmission or reception of one or more of the periodic transmissions in response to the first beam being incompatible with the second beam for the full duplex communication. In a further aspect, adjusting the communication at <NUM> may comprise, at 1106d, canceling transmission or reception of the second resources in response to the first beam being incompatible with the second beam for the full duplex communication.

The communication manager <NUM> includes a first scheduling information component <NUM> that is configured to receive first scheduling information with first resources for periodic transmissions with a first beam based on a half-duplex mode, e.g., as described in connection with <NUM> of <FIG>. The communication manager <NUM> further includes a second scheduling information component <NUM> that is configured to receive second scheduling information for second resources associated with a second beam that is incompatible with the first beam for full duplex communication including downlink reception and uplink transmission that overlap in time, e.g., as described in connection with <NUM> of <FIG>. The communication manager <NUM> further includes a communication adjustment component <NUM> that is configured to adjust communication in response to the first beam being incompatible with the second beam for the full duplex communication, e.g., as described in connection with <NUM> of <FIG>.

The apparatus may include additional components that perform each of the blocks of the algorithm in the aforementioned flowcharts of <FIG>, <FIG>, and <FIG>. As such, each block in the aforementioned flowcharts of <FIG>, <FIG>, and <FIG> may be performed by a component and the apparatus may include one or more of those components.

In one configuration, the apparatus <NUM>, and in particular the cellular baseband processor <NUM>, includes means for receiving first scheduling information with first resources for periodic transmissions with a first beam based on a half-duplex mode; means for receiving second scheduling information for second resources associated with a second beam that is incompatible with the first beam for full duplex communication including downlink reception and uplink transmission that overlap in time; and means for adjusting communication in response to the first beam being incompatible with the second beam for the full duplex communication. The aforementioned means may be one or more of the aforementioned components of the apparatus <NUM> configured to perform the functions recited by the aforementioned means. As described supra, the apparatus <NUM> may include the TX Processor <NUM>, the RX Processor <NUM>, and the controller/processor <NUM>.

The apparatus <NUM> is a BS and includes a baseband unit <NUM>. The baseband unit <NUM> may communicate through a cellular RF transceiver <NUM> with the UE <NUM>. The baseband unit <NUM> may include a computer-readable medium / memory. The baseband unit <NUM> is responsible for general processing, including the execution of software stored on the computer-readable medium / memory. The software, when executed by the baseband unit <NUM>, causes the baseband unit <NUM> to perform the various functions described supra. The computer-readable medium / memory may also be used for storing data that is manipulated by the baseband unit <NUM> when executing software. The baseband unit <NUM> further includes a reception component <NUM>, a communication manager <NUM>, and a transmission component <NUM>. The components within the communication manager <NUM> may be stored in the computer-readable medium / memory and/or configured as hardware within the baseband unit <NUM>. The baseband unit <NUM> may be a component of the BS <NUM> and may include the memory <NUM> and/or at least one of the TX processor <NUM>, the RX processor <NUM>, and the controller/processor <NUM>.

The communication manager <NUM> includes a first scheduling information component <NUM> that may transmit first scheduling information with first resources for periodic transmissions with a first beam based on a half-duplex mode, e.g., as described in connection with <NUM> of <FIG>. The communication manager <NUM> further includes a second scheduling information component <NUM> that may transmit second scheduling information for second resources associated with a second beam that is incompatible with the first beam for full duplex communication including downlink reception and uplink transmission that overlap in time, e.g., as described in connection with <NUM> of <FIG>. The communication manager <NUM> further includes a communication adjustment component <NUM> that may adjust communication in response to the first beam being incompatible with the second beam for the full duplex communication, e.g., as described in connection with <NUM> of <FIG>.

In one configuration, the apparatus <NUM>, and in particular the baseband unit <NUM>, includes means for transmitting first scheduling information with first resources for periodic transmissions with a first beam based on a half-duplex mode; means for transmitting second scheduling information for second resources associated with a second beam that is incompatible with the first beam for full duplex communication including downlink reception and uplink transmission that overlap in time; and means for adjusting communication in response to the first beam being incompatible with the second beam for the full duplex communication. The aforementioned means may be one or more of the aforementioned components of the apparatus <NUM> configured to perform the functions recited by the aforementioned means. As described supra, the apparatus <NUM> may include the TX Processor <NUM>, the RX Processor <NUM>, and the controller/processor <NUM>.

Therefore, a UE may perform ongoing periodic uplink or downlink transmissions in a half-duplex mode based on first scheduling information received from the base station. At the same time, the base station may schedule additional transmission in the opposite direction with second scheduling information. The scheduled beams for the transmissions in the two directions, i.e., uplink and downlink, may not be compatible with each other for full duplex communication due to e.g., the inability to cancel or sufficiently mitigate the associated self-interference. Based on aspects described herein, the communication may be adjusted such that the incompatibility of separately scheduled uplink and downlink beams do not impede further communication, and the communication, as modified, may proceed, in either the full duplex mode or the half duplex mode.

Claim 1:
A method of wireless communication at a user equipment, UE (<NUM>), comprising:
receiving (<NUM>) first scheduling information with first resources for transmissions with a first beam based on a half-duplex mode; characterized by
receiving (<NUM>) second scheduling information for second resources associated with a second beam that is incompatible with the first beam for full duplex communication including downlink reception and uplink transmission that overlap in time; and
adjusting (<NUM>) communication in response to the first beam being incompatible with the second beam for the full duplex communication.