Methods and apparatus for downlink and uplink beam management enhancements for full duplex

Abstract

Certain aspects of the present disclosure provide techniques for downlink and / or uplink beam management for full-duplex communication. An example method generally includes: receiving, from a wireless node, an RS resource configuration that indicates interference RS resources associated with interference reference signal transmissions; monitoring the interference RS via the interference RS resources; for each of the interference RS resources, determining a receive beam based at least in part on a plurality of monitored interference RS corresponding to the interference RS resources; receiving, from a second wireless node, control signaling indicating QCL information that further indicates suppressing the use of any monitored interference RS resources when determining spatial reception parameters, or identifying at least one monitored interference RS resource to use when determining the spatial reception parameters; and determining the spatial reception parameters according to the control signaling.

Description

[0001] Cross - Reference to Related Applications

[0002] This international application claims the benefit and priority of International Application No. PCT / CN2019 / 089600 filed on May 31, 2019 and International Application No. PCT / CN2019 / 089632 filed on May 31, 2019, each of which is incorporated herein by reference in its entirety for all applicable purposes.

[0003] Background

[0004] Field of Disclosure

[0005] Aspects of the present disclosure relate to wireless communication, and more particularly to techniques for downlink and / or uplink beam management for full-duplex communication.

[0006] Description of Related Art

[0007] Wireless communication systems are widely deployed to provide various telecommunication services such as telephony, video, data, messaging, broadcasting, etc. These wireless communication systems may employ multiple access technologies capable of supporting communication with multiple users by sharing available system resources (e.g., bandwidth, transmit power, etc.). Examples of such multiple access systems include Third Generation Partnership Project (3GPP) Long Term Evolution (LTE) systems, LTE-Advanced (LTE-A) systems, Code Division Multiple Access (CDMA) systems, Time Division Multiple Access (TDMA) systems, Frequency Division Multiple Access (FDMA) systems, Orthogonal Frequency Division Multiple Access (OFDMA) systems, Single Carrier Frequency Division Multiple Access (SC-FDMA) systems, and Time Division Synchronous Code Division Multiple Access (TD-SCDMA) systems, to name just a few examples.

[0008] In some examples, a wireless multi-access communication system may include a number of base stations (BSs), each capable of supporting communication for a plurality of communication devices (also referred to as user equipment (UE)) simultaneously. In an LTE or LTE-A network, a collection of one or more base stations may define an evolved Node B (eNB). In other examples (e.g., in a next generation, New Radio (NR), or 5G network), a wireless multi-access communication system may include a number of distributed units (DUs) (e.g., edge units (EUs), edge nodes (ENs), radio heads (RHs), smart radio heads (SRHs), transmission reception points (TRPs), etc.) in communication with a number of central units (CUs) (e.g., central nodes (CNs), access node controllers (ANCs), etc.), where a collection of one or more DUs in communication with a CU may define an access node (e.g., which may be referred to as a BS, next generation Node B (gNB or g B node), TRP, etc.). The BS or DU may communicate with a set of UEs on a downlink channel (e.g., for transmission from the BS or DU to the UE) and an uplink channel (e.g., for transmission from the UE to the BS or DU).

[0009] These multi-access technologies have been adopted in various telecommunication standards to provide a common protocol that enables different wireless devices to communicate at the city, national, regional, and even global levels. New Radio (e.g., 5G NR) is an example of an emerging telecommunication standard. NR is an enhanced set of the LTE mobile standard promulgated by 3GPP. NR is designed to better support mobile broadband Internet access by improving spectral efficiency, reducing costs, improving services, leveraging new spectrums, and better integrating with other open standards that use OFDMA with cyclic prefix (CP) on the downlink (DL) and uplink (UL). To this end, NR supports beamforming, multiple-input multiple-output (MIMO) antenna technology, and carrier aggregation.

[0010] However, as the demand for mobile broadband access continues to grow, there is a need for further improvement in NR and LTE technologies. Preferably, these improvements should be applicable to other multi-access technologies and telecommunication standards that employ these technologies.

[0011] Overview

[0012] The systems, methods, and devices of the present disclosure each have several aspects, none of which alone is responsible for its desirable attributes. Without limiting the scope of the present disclosure as expressed by the appended claims, some features will now be briefly discussed. After considering this discussion, and particularly after reading the section entitled "Detailed Description," it will be understood how the features of the present disclosure provide advantages including enhanced downlink and / or uplink beam management for full-duplex wireless communication.

[0013] Some aspects provide a method for wireless communication. The method generally includes receiving, from a second wireless node, a reference signal resource configuration that indicates one or more interference reference signal (RS) resources associated with interference reference signal transmission; monitoring one or more interference RSs via the one or more interference RS resources; for each of the one or more interference RS resources, determining at least one receive beam based at least in part on each of the one or more monitored interference RSs corresponding to at least one of the one or more interference RS resources; receiving, from the second wireless node, control signaling indicating quasi - co - location (QCL) information, where the QCL information indicates to refrain from using any of the monitored interference RS resources when determining spatial reception parameters, or to identify at least one of the monitored interference RS resources to use when determining spatial reception parameters; and determining the spatial reception parameters according to the control signaling.

[0014] Some aspects provide a method for wireless communication. The method generally includes receiving, from a second wireless node, a reference signal resource configuration that indicates a group of one or more interference reference signal (RS) resources associated with interference reference signal transmission, where each of the group of interference RS resources includes one or more interference RS resources; monitoring one or more interference RSs via the one or more interference RS resources corresponding to the group of one or more interference RS resources; for each of the group of one or more interference RS resources, determining at least one receive beam based at least in part on each of the one or more monitored interference RS resources corresponding to at least one of the group of one or more interference RS resources; receiving, from the second wireless node, control signaling indicating quasi - co - location (QCL) information, where the QCL information indicates to refrain from using any of the monitored groups of interference RS resources when determining spatial reception parameters, or to identify at least one of the monitored groups of interference RS resources to use when determining spatial reception parameters; and determining the spatial reception parameters according to the control signaling.

[0015] Certain aspects provide a method for wireless communication. The method generally includes transmitting a reference signal resource configuration to a second wireless node, the reference signal resource configuration indicating one or more interference reference signal (RS) resources associated with interference reference signal transmission; receiving a beam interference report from a first wireless node, the beam interference report indicating one or more interference levels of a receiving beam at the first wireless node based at least in part on the one or more interference RS resources; transmitting control signaling indicating quasi co-location (QCL) information to the first wireless node, wherein the QCL information indicates to suppress using any of the interference RS resources in the reference signal resource configuration when determining spatial reception parameters, or to identify at least one of the interference RS resources in the reference signal resource configuration to use when determining the spatial reception parameters; and scheduling full-duplex communication involving the first wireless node and one or more other wireless nodes based at least in part on the beam interference report.

[0016] Certain aspects provide a method for wireless communication. The method generally includes transmitting a reference signal resource configuration to a first wireless node, the reference signal resource configuration indicating one or more groups of interference reference signal (RS) resources associated with interference reference signal transmission, wherein each of the groups of interference RS resources includes one or more interference RS resources; receiving a beam interference report from a first wireless node, the beam interference report indicating one or more interference levels of a receiving beam at the first wireless node based at least in part on the one or more groups of interference RS resources; transmitting control signaling indicating quasi co-location (QCL) information to the first wireless node, wherein the QCL information indicates to suppress using any of the monitored groups of interference RS resources in the reference signal resource configuration when determining spatial reception parameters, or to identify at least one of the monitored groups of interference RS resources in the reference signal resource configuration to use when determining the spatial reception parameters; and scheduling full-duplex communication involving the first wireless node and one or more other wireless nodes based at least in part on the beam interference report.

[0017] Certain aspects provide an apparatus for wireless communication. The apparatus generally includes a receiver configured to: receive from a wireless node a reference signal resource configuration that indicates one or more first interference reference signal (RS) resources associated with an interference reference signal transmission or one or more interference RS resource groups associated with the interference reference signal transmission, where each interference RS resource group of the interference RS resource groups includes one or more second interference RS resources, and receive control signaling from the wireless node that indicates quasi-co-location (QCL) information, where the QCL information indicates to suppress use of any monitored interference RS resources in the reference signal resource configuration when determining spatial reception parameters or to identify at least one monitored interference RS resource in the reference signal resource configuration to use when determining the spatial reception parameters. The apparatus further includes a processing system configured to: monitor one or more interference RSs via the one or more first interference RS resources or the one or more second interference RS resources, determine at least one receive beam for each first interference RS resource of the one or more first interference RS resources or for each interference RS resource group of the interference RS resource groups, at least in part based on each of the one or more monitored interference RSs corresponding to at least one of the one or more first interference RS resources or the one or more second interference RS resources, and determine the spatial reception parameters according to the control signaling.

[0018] Certain aspects provide an apparatus for wireless communication. The apparatus generally includes a receiver configured to: receive from a wireless node a reference signal (RS) resource configuration that indicates one or more interference RS resources or one or more interference RS resource groups. The apparatus further includes a processing system configured to: monitor one or more interference RSs for each interference RS resource of the one or more interference RS resources or for each interference RS resource group of the one or more interference RS resource groups, where the one or more interference RSs for each interference RS resource of the one or more interference RS resources or for each interference RS resource group of the one or more interference RS resource groups are associated with a plurality of transmit beams; measure interference associated with at least one of the plurality of beams for the one or more interference RSs for each interference RS resource of the one or more interference RS resources or for each interference RS resource group of the one or more interference RS resource groups; and generate an interference report based on the measurement. The apparatus further includes a transmitter configured to: transmit the interference report to the wireless node.

[0019] Certain aspects provide an apparatus for wireless communication. The apparatus generally includes a receiver configured to receive, from a wireless node, a reference signal (RS) resource configuration that indicates one or more interfering RS resources. The apparatus also includes a processing system configured to monitor one or more interfering RSs via the one or more interfering RS resources; for each of the one or more interfering RS resources, determine a receive beam based on one or more interfering RSs of the one or more interfering RS resources, where the receive beam is one of a plurality of receive beams used to receive the one or more interfering RSs and the receive beam has the lowest receive power among the plurality of receive beams; and select a transmit beam corresponding to the receive beam. The apparatus further includes a transmitter configured to transmit signaling to the wireless node via the transmit beam.

[0020] Certain aspects provide an apparatus for wireless communication. The apparatus generally includes a receiver configured to receive, from a wireless node, a reference signal (RS) resource configuration that indicates one or more full-duplex interfering RS resources and one or more half-duplex interfering RS resources. The apparatus also includes a transmitter configured to transmit one or more interfering RSs for each of the one or more full-duplex interfering RS resources and the one or more half-duplex interfering RS resources. The receiver is further configured to receive, from the wireless node, an indication of quasi-co-location (QCL) information after transmitting the one or more interfering RSs, where the QCL information indicates first spatial relation information to be used for transmission via the one or more full-duplex interfering resources and second spatial relation information to be used for transmission via the one or more half-duplex interfering resources. The transmitter is further configured to transmit signaling to the wireless node according to the QCL information.

[0021] Aspects of the present disclosure provide apparatuses, devices, processors, and computer-readable media for performing the methods described herein.

[0022] To achieve the foregoing and related ends, one or more of these aspects include the features hereinafter fully described and particularly pointed out in the claims. The following description and the drawings set forth in detail certain illustrative features of one or more of these aspects. However, these features are merely indicative of the various ways in which the principles of various aspects may be employed. Brief Description of the Drawings

[0024] To understand the manner in which the above-recited features of the present disclosure can be obtained, a more particular description may be had of aspects, some of which are illustrated in the drawings. It should be noted, however, that the drawings illustrate only certain typical aspects of the present disclosure and are not to be considered limiting of its scope, for the description may admit to other equally effective aspects.

[0025] Figure 1 is a block diagram conceptually illustrating an example telecommunication system in accordance with certain aspects of the present disclosure.

[0026] Figure 2 is a block diagram conceptually illustrating the design of an example base station (BS) and user equipment (UE) in accordance with certain aspects of the present disclosure.

[0027] Figure 3 illustrates an example full-duplex wireless communication system in accordance with certain aspects of the present disclosure.

[0028] Figure 4 illustrates an example full-duplex wireless communication system in which a UE monitors reference signal (RS) resources in accordance with certain aspects of the present disclosure.

[0029] Figure 5 illustrates an example full-duplex wireless communication system in which a UE monitors a group of reference signal resources in accordance with certain aspects of the present disclosure.

[0030] Figure 6 illustrates an example full-duplex wireless communication system in which a BS provides quasi co-location (QCL) information with or without a corresponding interference RS in accordance with certain aspects of the present disclosure.

[0031] Figure 7 is a signaling flow diagram illustrating example operations for performing downlink beam management in a full-duplex setting in accordance with certain aspects of the present disclosure.

[0032] Figure 8 is a flowchart illustrating example operations for downlink beam management based on interference RS resources in accordance with certain aspects of the present disclosure.

[0033] Figure 9 is a flowchart illustrating example operations for scheduling full-duplex communication based on interference reported at the interference RS resource level in accordance with certain aspects of the present disclosure.

[0034] Figure 10 is a flowchart illustrating example operations for downlink beam management based on a group of interference RS resources in accordance with certain aspects of the present disclosure.

[0035] Figure 11 is a flowchart illustrating example operations for scheduling full-duplex communication based on interference reported at the group of interference RS resources level in accordance with certain aspects of the present disclosure.

[0036] Figure 12 is an example full-duplex wireless communication system for uplink beam refinement using beam sweeping in accordance with certain aspects of the present disclosure.

[0037] Figure 13 is a signaling flow diagram illustrating example operations for beam management in accordance with certain aspects of the present disclosure.

[0038] Figure 14 is a flowchart illustrating example operations of wireless communication by a BS in accordance with certain aspects of the present disclosure.

[0039] Figure 15 is a flowchart illustrating example operations of wireless communication by a UE in accordance with certain aspects of the present disclosure.

[0040] Figure 16 is an example full-duplex wireless communication system for uplink beam refinement using beam sweeping and interference RS resource sets in accordance with certain aspects of the present disclosure.

[0041] Figure 17 is a flowchart illustrating example operations of wireless communication by a BS in accordance with certain aspects of the present disclosure.

[0042] Figure 18 is a flowchart illustrating example operations of wireless communication by a UE in accordance with certain aspects of the present disclosure.

[0043] Figure 19 is a signaling flow diagram illustrating example operations for beam management using beam correspondence in accordance with certain aspects of the present disclosure.

[0044] Figure 20 is a flowchart illustrating example operations of wireless communication by a UE in accordance with certain aspects of the present disclosure.

[0045] Figure 21 is a flowchart illustrating example operations of wireless communication by a UE in accordance with certain aspects of the present disclosure.

[0046] Figure 22 illustrates an example wireless communication system for integrated access and backhaul (IAB) in accordance with certain aspects of the present disclosure.

[0047] Figure 23 illustrates a communication device that may include various components configured to perform operations of the techniques disclosed herein in accordance with aspects of the present disclosure.

[0048] For ease of understanding, wherever possible, the same reference numerals have been used to designate identical elements common to the figures. It is contemplated that elements disclosed in one aspect may be beneficially utilized in other aspects without specific recitation.

[0049] Detailed Description

[0050] Aspects of the present disclosure provide apparatuses, methods, processing systems, and computer-readable media for downlink and / or uplink beam management in a full-duplex setting. For example, while a UE is receiving a downlink transmission from a BS, the UE can monitor reference signals transmitted by other UEs and determine a receive beam that reduces interference from these reference signals. Other aspects of the present disclosure relate to scheduling full-duplex communication based on interference reports generated by UEs that monitor reference signals. Aspects of the present disclosure also relate to a BS transmitting control signaling to a UE indicating whether to use the determined receive beam for the purpose of quasi-co-location (QCL) information. In aspects, the UE can also monitor reference signals transmitted by other UEs during full-duplex communication and determine an uplink transmit beam that reduces interference at other UEs.

[0051] Figure 1 An example wireless communication network 100 in which aspects of the present disclosure may be implemented is illustrated. The wireless communication network 100 may be a NR system (e.g., a 5G NR network). For example, as Figure 1 shown, according to aspects described herein, the UE 120a has a beam manager 122 that may be configured to determine a downlink receive beam that reduces interference from other UEs during full-duplex communication and / or to determine an uplink transmit beam that reduces interference at other UEs during full-duplex communication. According to aspects described herein, the BS 110a has a beam manager 112 that may be configured to schedule full-duplex communication based on interference reports generated by the UE 120a or other UEs.

[0052] NR is an emerging wireless communication technology being developed in cooperation with the 5G Technology Forum (5GTF). NR access (e.g., 5G NR) may support various wireless communication services such as enhanced mobile broadband (eMBB) targeted at wide bandwidths (e.g., 80 MHz or higher), millimeter wave (mmWave) targeted at high carrier frequencies (e.g., 25 GHz or higher), massive machine type communication MTC (mMTC) targeted at non-backward compatible MTC technologies, and / or mission-critical services targeted at ultra-reliable low latency communication (URLLC). These services may include latency and reliability requirements. These services may also have different transmission time intervals (TTIs) to meet corresponding quality of service (QoS) requirements. Additionally, these services may coexist in the same subframe.

[0053] As Figure 1 illustrated, the wireless communication network 100 may include several base stations (BSs) 110 and other network entities. In Figure 1In the example shown, BS110a, 110b, and 110c can be macro BSs for macro cells 102a, 102b, and 102c, respectively. BS110x can be a pico BS for pico cell 102x. BS110y and 110z can be femto BSs for femto cells 102y and 102z, respectively. A BS can support one or more (e.g., three) cells. The wireless communication network 100 can also include relay stations. In Figure 1 the example shown, relay station 110r can communicate with BS110a and UE 120r to facilitate communication between BS 110a and UE 120r. A relay station can also be referred to as a relay BS, repeater, etc.

[0054] UEs 120 (e.g., 120x, 120y, etc.) can be dispersed throughout the wireless communication network 100, and each UE can be stationary or mobile. In Figure 1 it, solid lines with double arrows indicate desired transmissions between a UE and its serving BS, which is the BS designated to serve the UE on the downlink and / or uplink. Thin dashed lines with double arrows indicate potential interference transmissions between a UE and a BS.

[0055] Network controller 130 can be coupled to a set of BSs and provide coordination and control for these BSs. Network controller 130 can communicate with BS110 via a backhaul. BS110s can also communicate with each other via a wireless or wired backhaul (e.g., directly or indirectly).

[0056] Figure 2 illustrates example components of BS110 and UE 120 (e.g., in the Figure 1 wireless communication network 100 of ) that can be used to implement aspects of the present disclosure. For example, antennas 252, processors 266, 258, 264, and / or controller / processor 280 of UE 120 and / or antennas 234, processors 220, 230, 238, and / or controller / processor 240 of BS110 can be used to perform the various techniques and methods described herein. For example, as Figure 2 shown, according to aspects described herein, controller / processor 240 of BS110 has a beam manager 241, which can be configured to schedule full-duplex communication based on an interference report generated by UE 120a. According to aspects described herein, controller / processor 280 of UE 120 has a beam manager 281, which can be configured to determine a downlink receive beam for reducing interference from other UEs during full-duplex communication and / or to determine an uplink transmit beam for reducing interference at other UEs during full-duplex communication.

[0057] At BS110, the transmit processor 220 may receive data from the data source 212 and control information from the controller / processor 240. This control information may be used for the physical broadcast channel (PBCH), physical control format indicator channel (PCFICH), physical hybrid ARQ indicator channel (PHICH), physical downlink control channel (PDCCH), group common PDCCH (GC PDCCH), etc. This data may be used for the physical downlink shared channel (PDSCH), etc. The processor 220 may process (e.g., encode and symbol map) the data and control information to obtain data symbols and control symbols, respectively. The transmit processor 220 may also generate reference symbols (such as for the primary synchronization signal (PSS), secondary synchronization signal (SSS), and cell-specific reference signal (CRS)). The transmit (TX) multiple-input multiple-output (MIMO) processor 230 may perform spatial processing (e.g., precoding) on the data symbols, control symbols, and / or reference symbols when applicable, and may provide the output symbol streams to the modulators (MOD) 232a - 232t. Each modulator 232 may process its respective output symbol stream (e.g., for OFDM, etc.) to obtain an output sample stream. Each modulator may further process (e.g., convert to analog, amplify, filter, and up-convert) the output sample stream to obtain a downlink signal. The downlink signals from the modulators 232a - 232t may be transmitted via the antennas 234a - 234t, respectively.

[0058] At the UE 120, the antennas 252a - 252r may receive the downlink signals from the BS110 and may provide the received signals to the demodulators (DEMOD) 254a - 254r in the transceiver, respectively. Each demodulator 254 may condition (e.g., filter, amplify, down-convert, and digitize) its respective received signal to obtain input samples. Each demodulator may further process the input samples (e.g., for OFDM, etc.) to obtain received symbols. The MIMO detector 256 may obtain the received symbols from all the demodulators 254a - 254r, perform MIMO detection on these received symbols when applicable, and provide detected symbols. The receive processor 258 may process (e.g., demodulate, de-interleave, and decode) these detected symbols, provide the decoded data for the UE 120 to the data sink 260, and provide the decoded control information to the controller / processor 280.

[0059] On the uplink, at the UE 120, the transmit processor 264 may receive and process data from the data source 262 (e.g., data for the physical uplink shared channel (PUSCH)) and control information from the controller / processor 280 (e.g., control information for the physical uplink control channel (PUCCH)). The transmit processor 264 may also generate reference symbols for reference signals (e.g., sounding reference signals (SRS)). The symbols from the transmit processor 264 may be precoded by the TX MIMO processor 266 when applicable, further processed by the demodulators 254a - 254r in the transceiver (e.g., for SC - FDM, etc.), and transmitted to the base station 110. At the BS 110, the uplink signal from the UE 120 may be received by the antenna 234, processed by the modulator 232, detected by the MIMO detector 236 when applicable, and further processed by the receive processor 238 to obtain the decoded data and control information transmitted by the UE 120. The receive processor 238 may provide the decoded data to the data sink 239 and the decoded control information to the controller / processor 240.

[0060] The controller / processors 240 and 280 may direct operations at the BS 110 and the UE 120, respectively. The controller / processor 240 at the BS 110 and / or other processors and modules may execute or direct the execution of the processes of the techniques described herein. The memories 242 and 282 may store data and program codes for the BS 110 and the UE 120, respectively. The scheduler 244 may schedule the UE for data transmission on the downlink and / or uplink.

[0061] Example Beam Management Enhancements for Full Duplex

[0062] In a full-duplex cellular cell, a pair (or more) of UEs, including a UE (hereinafter referred to as UE-1) that receives a downlink signal (e.g., PDSCH data) and another UE (hereinafter referred to as UE-2) that transmits an uplink signal (e.g., PUSCH data), can communicate with a base station using the same frequency-time resource. In some scenarios where downlink and / or uplink multi-user multiple-input multiple-output (MU-MIMO) is deployed, there may be multiple UEs receiving downlink signals (e.g., PDSCH) and multiple UEs transmitting uplink signals (e.g., PUSCH) operating simultaneously. The BS can make a pairing selection regarding which UEs can use the same frequency-time resource to communicate simultaneously. There can be multiple selections of UE pairs that can be scheduled by the BS. The BS can consider several factors when making the pairing selection, such as the interference from the uplink transmission of UE-2 encountered at UE-1 during downlink reception. The BS can also consider the self-interference at the BS, which results from the downlink transmission to UE-1 encountered at the BS during the reception of the uplink transmission from UE-2.

[0063] Certain aspects of the present disclosure relate to reducing the interference encountered at UE-1 during full-duplex communication. For example, to find a suitable UE pair with reduced interference, the BS can schedule UE-1 to monitor interference reference signal resources (e.g., sounding reference signal (SRS) resources, channel state information reference signal (CSI-RS) resources, or any suitable reference signal resource) to allow the BS and the UE to measure the UE-to-BS and UE-to-UE channel and interference attributes during full-duplex communication. The BS can also schedule different UE-2s to transmit signals according to different configured interference RS resources so that UE1 can measure the interference from different UE-2s accordingly. UE-1 can be configured to feedback the measurement results to the BS to assist the BS in further determining the UE pairing, as described in more detail herein.

[0064] Figure 3An example full-duplex wireless communication system 300 in accordance with certain aspects of the present disclosure is illustrated. Beam management is important for higher frequency performance as the beams may be relatively narrow in such scenarios to provide sufficient beamforming gain. Beam management is typically controlled by BS 110. For example, in DL, BS 110 may transmit multiple beams (e.g., beam 302) to UE 120a (e.g., UE-1), and subsequently UE 120a reports the index of the strongest beam that was used to transmit a signal (e.g., PDSCH). UE 120a may also determine one or more receive (Rx) beams (e.g., Rx beam 304) that will be used to receive a signal (e.g., PDSCH) from BS 110. Similarly, UE 120b (e.g., UE-2) may determine one or more transmit (Tx) beams (e.g., Tx beam 306) to be used to transmit a signal (e.g., PUSCH) to BS 110, and the BS may select an Rx beam for receiving a signal (e.g., PUSCH) from UE 120b. In some aspects, the Tx beam of BS 110 may be conveyed to UE 120a via multiple synchronization signal blocks (SSB) or channel state information-reference signal (CSI-RS). For UL transmission, UE 120b (e.g., UE-2) may be configured by BS 110 to apply different Tx beams to different SRS resources for BS 110 to select the strongest Tx beam to be used for UL transmission (e.g., PUSCH), or transmit SRS with the same Tx beam across multiple symbols for the BS to refine its Rx beam.

[0065] As illustrated, in a full-duplex cell, the UE 120a Rx beam and the UE 120b Tx beam do not simply depend on the BS-to-UE channel. For example, for a particular UE 120b and its corresponding Tx beam, UE 120a may determine an Rx beam for receiving a downlink signal (e.g., PDSCH data) from BS 110 such that interference from UE 120b can be reduced while the downlink signal from the BS can still be decoded. Thus, when determining the Rx beam of UE 120a (e.g., one of Rx beams 304), the BS-to-UE and UE-to-UE channels (e.g., UE-to-UE interference) may be considered. Similarly, for UE 120a, UE 120b may determine a Tx beam for transmitting an uplink signal (e.g., PUSCH data) such that interference towards UE 120a can be reduced while the uplink signal received by the BS can still be decoded. Thus, when determining the Tx beam of UE 120b, the BS-to-UE and UE-to-UE channels may also be considered. In a similar manner, when the BS determines its Rx beam, the BS may consider interference from a downlink transmission to UE 120a when receiving an uplink transmission from UE 120b.

[0066] Example Downlink Beam Management Enhancements for Full Duplex

[0067] Certain aspects of the present disclosure provide techniques for downlink beam refinement in full duplex communication applications. For example, UE-1 may monitor interference reference signal (RS) resources from one or more UE-2s and determine a preferred receive beam to receive a downlink transmission from a BS while receiving interference signals from the UE-2s.

[0068] Figure 4 An example full duplex wireless communication system 400 in accordance with certain aspects of the present disclosure is illustrated, in which UE 120a (e.g., UE-1) monitors reference signal resources from interfering UEs 120b and 120c (e.g., UE-2s). As shown, UE 120a may be configured with one or more interference RS resources (e.g., time and frequency resources) to monitor interference RSs 402, 404 from UE 120b and 120c, respectively, via uplink Tx beams. The interference RS resources may be sounding reference signal (SRS) resources or CSI-RS resources. For example, instead of SRS-based monitoring and reporting, UE 120a may be configured by BS110 to monitor CSI-RS resources for interference power measurement, and BS110 may configure UE 120b or 120c to transmit signals based on these CSI-RS resources. As further described herein, the CSI-RS resources for interference power measurement may be separate from the CSI-RS resources for signal power measurement transmitted by the BS.

[0069] BS110 may transmit a reference signal resource configuration to UE 120a indicating the interference RS resources to be monitored. For example, the reference signal resource configuration may include one or more index values associated with the interference RS resources. UE 120a may determine the interference RS resources to be monitored based on the index values. The reference signal resource configuration may indicate monitoring of one or more interference RS resources on a semi-persistent, periodic, aperiodic, or dynamic basis. The reference signal resource configuration may indicate interference RS resources at the band or sub-band level of the carrier bandwidth.

[0070] Each interference RS resource may be configured to be repeated according to a repetition pattern or interval and have the same or different number of repetitions. For example, the reference signal resource configuration may further indicate that the interference RS resource will be transmitted when repetition is enabled (e.g., "Repetition-On"). Each interference RS resource may be associated with different Tx beams used by UE 120b and / or UE 120c to transmit uplink transmissions to the BS. In some aspects, to transmit the interference RS, UE 120b and / or UE 120c may use the same or different Tx beams previously used for uplink transmissions (e.g., PUSCH data transmissions) to BS110. In some cases, different interference RS resources may enable UE 120b and UE 120c to sweep different Tx beams and allow UE 120a to determine the (one or more) Rx beams (e.g., Rx beams 406, 408) that exhibit the least interference associated with the interference RS resource.

[0071] For each interference RS resource configured in the reference signal configuration, UE 120a may determine Rx beams 406, 408 based on the monitored interference RS. For example, UE-120a may select Rx beam 406 that exhibits the least interference from interference RS resource 402 transmitted by UE 120b. UE 120a may select a similar Rx beam 408 that exhibits the least interference from interference RS resource 404 transmitted by UE 120c.

[0072] In some cases, e.g., in the reference signal configuration, BS110 may further configure UE 120a to monitor channel state information reference signal (CSI-RS) resources 410, 412 (e.g., non-zero power CSI-RS (NZP-CSI-RS) resources) (or any other suitable reference signal transmitted by BS110) along with the interference RS resources. Each CSI-RS resource may be associated with at least one of the interference RS resources and allow UE 120a to experience the potential interference encountered during full-duplex communication as described herein Figure 3 For example, the CSI-RS resource associated with the interference RS resource may be transmitted by the BS simultaneously with the corresponding interference RS resource. Each CSI-RS resource may be associated with the same or different interference RS resources.

[0073] CSI RS 410 and 412 corresponding to CSI-RS resources can be transmitted by BS110. To transmit CSI-RS, BS110 can use the same or different Tx beams previously used for downlink transmission (e.g., PDSCH data transmission) to UE 120a. Although CSI-RS 410 and 412 are depicted as being transmitted on different Tx beams, CSI-RS 410 and 412 can be transmitted using the same Tx beam. To transmit CSI-RS, BS110 can sweep different Tx beams.

[0074] UE 120a can take into account CSI-RS resources when determining Rx beams 406 and 408, as described previously herein. For example, UE120a can consider CSI-RS resources as representing the signal and interference RS resources as representing interference in a signal and noise and interference assessment (such as signal to noise and interference ratio (SINR)).

[0075] In some aspects, UE 120a can generate a beam interference report that indicates the interference levels encountered at UE 120a when monitoring interference RS resources and / or CSI-RS resources. The interference report can include interference levels related to interference RS resources and / or CSI-RS resources. For example, the interference levels can include the SINR or interference power level of the signals received on the interference RS resources and / or CSI-RS resources. In SINR measurements, UE 120a can consider the CSI-RS resources transmitted by the BS as the signal and the interference RS resources as the interference. In some cases, UE 120a can monitor interference to perform averaging of the interference reports over multiple monitoring instances. For example, the interference report can include interference levels averaged over multiple monitoring instances.

[0076] UE 120a can report (e.g., via the interference report) the measurement results of one or more preferred beams for all interference RS resources (e.g., SRS resources), or for each interference RS resource, report the measurement results of one or more preferred beams, or report the measurement results for all swept beams with respect to all interference RS resources. For example, the reporting of the measurement results can include one or any combination of the following: (1) reporting the beam index of the preferred beam for a specific interference RS resource, (2) the interference RS resource index of the interference RS resource involved, and (3) the CSI-RS resource index associated with the interference RS resource involved. The specific reporting parameters can be based on a configuration separate from the BS, or determined by the UE and indicated to the BS.

[0077] As another example of downlink beam refinement in a full-duplex communication application, UE-1 can monitor interference RS resource sets and determine one or more receive beams to receive downlink transmissions from the BS while receiving interference signals from (a) UE-2.

[0078] Figure 5 An example full-duplex wireless communication system 500 in accordance with certain aspects of the present disclosure is illustrated, where UE 120a (e.g., UE-1) monitors interference reference signal resource sets configured by reference signal configurations, where different interference reference signal resource sets are associated with reference signals transmitted from different UEs 120b and 120c (e.g., UE-2). As shown, UE120a may be configured with one or more interference RS resource sets (e.g., time and frequency resource sets) to monitor interference RSs 502, 504 transmitted from UE120b and 120c via uplink Tx beams, respectively.

[0079] BS110 may transmit a reference signal resource configuration to UE 120a indicating the interference RS resource sets to be monitored. For example, the reference signal resource configuration may include one or more index values associated with the interference RS resource sets. UE 120a may determine the interference RS resource sets to be monitored based on the index values. The reference signal resource configuration may indicate to perform monitoring of one or more interference RS resource sets on a semi-persistent, periodic, aperiodic, or dynamic basis. The reference signal resource configuration may indicate the interference RS resource sets at the band or sub-band level of the carrier bandwidth.

[0080] Each interference RS resource group may correspond to a set of interference RS resources. Each interference RS resource in the group may be configured to be repeated according to a repetition pattern and have the same or different number of repetitions. Each interference RS resource group may be associated with one or more Tx beams used by UE120b and / or UE 120c to transmit an uplink transmission to the BS. In some aspects, to transmit the interference RS, UE 120b and / or UE 120c may use the same or different Tx beams previously used for an uplink transmission (e.g., PUSCH data transmission) to BS110. In some cases, in the event that each resource in the interference RS group is associated with a different TX beam, the interference RS resource group may enable UE 120b and UE 120c to sweep different TX beams. In other cases, in the event that each interference RS group is associated with a different Tx beam and each resource in the interference RS group is associated with the same Tx beam, different interference RS resource groups may enable UE 120b and UE 120c to sweep different Tx beams. UE 120a may use the RS received on the swept Tx beams to determine the (one or more) Rx beams (e.g., Rx beams 406, 408) that exhibit the least interference associated with each interference RS resource group or each resource in the group.

[0081] For each interference RS resource group, UE 120a may determine Rx beams 506, 508 based on the interference RS being monitored. For example, UE-120a may select the Rx beam 506 that exhibits the least interference from the interference RS resource group 502 transmitted by UE 120b. UE 120a may select a similar Rx beam 508 that exhibits the least interference from the interference RS resource group 504 transmitted by UE 120c.

[0082] In some cases, BS110 may configure UE 120a to monitor channel state information reference signal (CSI-RS) resources 510, 512 (e.g., NZP-CSI-RS resources) (or any other suitable reference signal transmitted by BS110) along with the interference RS resource groups. Each CSI-RS resource may be associated with at least one of the interference RS resource groups and allows UE 120a to experience the potential interference encountered during the full-duplex communication described herein Figure 3 as encountered. For example, the CSI-RS resources associated with the interference RS resource groups may be transmitted by the BS simultaneously with the corresponding interference RS resource groups. Each CSI-RS resource may be associated with the same or different interference RS resource groups.

[0083] CSI RS corresponding to CSI-RS resources 510, 512 can be transmitted by BS 110. To transmit CSI-RS, BS 110 may use the same or different Tx beams that were previously used for downlink transmission to UE 120a (e.g., PDSCH data transmission). Although CSI-RS resources 510, 512 are depicted as being transmitted on different Tx beams, CSI-RS resources 510, 512 may be transmitted using the same Tx beam. In some cases, BS 110 may sweep different Tx beams to transmit CSI-RS.

[0084] UE 120a may take into account CSI-RS resources when determining Rx beams 506, 508, as described previously herein. In some aspects, UE 120a may generate a beam interference report that indicates the interference levels encountered at UE 120a when monitoring interference RS resource sets and / or CSI-RS resources. The interference report may include interference levels related to interference RS resources, interference RS resource sets, and / or CSI-RS resources.

[0085] Certain aspects of the present disclosure provide techniques for a BS to signal to a UE interference RS for quasi-co-location (QCL) information. For example, BS 110 may determine whether UE-1 should take into account one or more of interference RS resources or interference RS resource sets when determining spatial reception parameters for quasi-co-located signaling.

[0086] Figure 6 An example full-duplex wireless communication system 600 in accordance with certain aspects of the present disclosure is illustrated, where BS 110 provides QCL information with or without a corresponding interference RS. As shown, BS 110 may transmit control signaling 612, 614, 616 to UE 120a that indicates QCL information with or without a corresponding interference RS resource. For example, control signaling 612 may include an interference RS resource (e.g., interference RS resource 402) or interference RS resource set for QCL information. As an example, control signaling 614 may include another interference RS resource (e.g., interference RS resource 404) or interference RS resource set for QCL information. In some cases, control signaling 616 may include QCL information without any interference RS resources. Control signaling 612, 614, 616 may be transmitted via downlink control information (DCI), radio resource control (RRC) signaling, and / or media access control (MAC) signaling. The QCL information may be included in a transmission configuration indicator (TCI) state.

[0087] UE 120a may select an Rx beam based on the QCL information in the control signaling. If the control signaling does not have any indication of the interference RS resources, UE 120a may use Rx beam 610 regardless of the interference monitored from UE 120a and / or UE 120c. If the control signaling indicates at least one interference RS resource, UE 120a may use an Rx beam (e.g., Rx beam 406 or 408) to avoid interference from the full-duplex pairing with UE 120b or 120c. If the control signaling indicates different interference RS resources or groups of interference RS resources, UE 120a may use different Rx beams (e.g., Rx beams 406 and 408) to avoid interference from the full-duplex communication from UE 120b and 120c. In a case where the full-duplex pairing varies by sub-band, the control signaling may include QCL information that varies by sub-band with the interference RS resources or groups of interference RS resources.

[0088] Figure 7 is a signaling flow diagram illustrating an example operation 700 for performing downlink beam management in a full-duplex setting according to certain aspects of the present disclosure. As shown, at 702, UE 120a (e.g., UE-1) may receive a reference signal resource configuration from BS110 as described herein with reference to Figure 4 and 5 . At 704, UE 120a may determine the interference RS resources or groups of interference RS resources to monitor and monitor the interference RS transmitted from UE(s) 120b. At 704, UE 120a may also monitor the CSI-RS resources (e.g., NZP-CSI-RS resources) transmitted from BS110. The CSI-RS resources may be transmitted simultaneously with the interference RS resources or groups of interference RS resources. At 708, UE 120a may determine an Rx beam for each interference RS resource or each group of interference RS resources based on the monitored interference RS and / or CSI-RS. At 710, UE 120a may generate a beam interference report including the interference level of the Rx beam. At 712, UE 120a may transmit the interference report to BS110. At 714, BS110 may determine a full-duplex scheduling based on the interference report. For example, BS110 may select a UE pairing for full-duplex communication that presents the minimum interference from the simultaneous transmissions as determined based on the interference report. BS110 may also determine whether UE 120a is to apply the Rx beam determined at 708 for the purpose of QCL information. At 716, BS110 may transmit control signaling (e.g., TCI state(s)) with QCL information to UE 120a, the QCL information indicating whether UE 120a is to apply the Rx beam as described herein with reference to Figure 6As described. At 718, UE 120a may determine spatial reception parameters for its Rx beam according to control signaling. At 720, UE 120a and 120b may participate in full-duplex communication with BS110. UE 120a may use an Rx beam that reduces interference from the uplink transmission of UE 120b to receive a downlink transmission from BS110.

[0089] Figure 8 is a flow chart illustrating an example operation 800 for determining a receive beam and applying QCL information in accordance with certain aspects of the present disclosure. Operation 800 may be performed, for example, by a first wireless node (e.g., UE 120a or UE-1). In some aspects, as described in more detail herein, the first wireless node may be a child node or a relay node.

[0090] Operation 800 may be implemented as a software component executed and run on one or more processors (e.g., Figure 2 the controller / processor 280). Additionally, signal transmission and reception performed by the UE in operation 800 may be implemented, for example, by one or more antennas (e.g., Figure 2 the antenna 252). In some aspects, the transmission and / or reception of signals by the UE may be implemented by obtaining and / or outputting signals via a bus interface of one or more processors (e.g., the controller / processor 280).

[0091] Operation 800 may begin at block 802 with the first wireless node (e.g., UE 120a) receiving a reference signal resource configuration from the second wireless node (e.g., BS110), the reference signal resource configuration indicating one or more interference reference signal (RS) resources associated with interference reference signal transmissions from other wireless nodes (e.g., UE 120b or 120c). At block 804, the first wireless node may monitor one or more interference RSs transmitted by the other wireless nodes via the one or more interference RS resources. At block 806, the first wireless node may determine, for each of the one or more interference RS resources, at least one receive beam based at least in part on each of the one or more monitored interference RSs corresponding to at least one of the one or more interference RS resources. At block 808, the first wireless node may receive control signaling from the second wireless node indicating QCL information. The QCL information may indicate: suppressing the use of any monitored interference RS resources when determining spatial reception parameters, or identifying at least one monitored interference RS resource to use when determining the spatial reception parameters. At block 810, the first wireless node may determine spatial reception parameters according to the control signaling.

[0092] In some aspects, determining at least one receive beam at block 806 may be based on reducing interference associated with the one or more monitored interference RS resources.

[0093] Operation 800 may further include a first wireless node generating a beam interference report including an interference level of at least one receive beam based at least in part on one or more interfered RS resources being monitored. The first wireless node may transmit the beam interference report to a second wireless node.

[0094] The reference signal resource configuration may further indicate performing averaging of interference levels over a plurality of monitoring occasions (e.g., several time slots, subframes, frames, seconds, or milliseconds). The first wireless node may generate a beam interference report by at least partially averaging interference levels over the plurality of monitoring occasions.

[0095] The reference signal resource configuration may further indicate several interference RS repetitions over time associated with each of one or more interfered RS resources. In some cases, all interference RS repetitions associated with one of the one or more interfered RS resources may correspond to one transmit beam.

[0096] The reference signal resource configuration may further indicate one or more CSI-RS resources associated with CSI-RS transmissions from a second wireless node. Each of the one or more CSI-RS resources may be associated with at least one of the one or more interfered RS resources. The monitoring performed by the first wireless node at block 804 may include: monitoring one or more CSI-RS from the second wireless node via the one or more CSI-RS resources. Generating a beam interference report by the first wireless node may include: generating a beam interference report based at least in part on the one or more CSI-RS being monitored. In some aspects, a plurality of the one or more interfered RS resources may be associated with the same CSI-RS resource. In other aspects, each of the one or more interfered RS resources may be associated with a different one of the one or more CSI-RS resources. The one or more CSI-RS resources may include at least one NZP-CSI-RS resource.

[0097] In some aspects, determining at least one receive beam at block 806 may be based on reducing interference associated with the one or more interfered RS resources being monitored. The interference associated with each of the one or more interfered RS resources being monitored may be determined based at least in part on one of the one or more interfered RS resources and a corresponding CSI-RS resource among the one or more CSI-RS resources.

[0098] A beam interference report may indicate one or more interference levels associated with at least one of one or more interfered RS resources or one or more CSI-RS resources being monitored. The one or more interference levels may include at least one of SINR or interference power level. The signal power of the SINR of the interfered RS resource or CSI-RS resource may be determined based on the CSI-RS resource associated with the interfered RS resource. The interference power or interference power level of the SINR of the interfered RS resource or CSI-RS resource may be determined based on the interfered RS resource.

[0099] One or more interfered RS resources may be SRS resources or CSI-RS resources different from one or more CSI-RS resources transmitted by a second wireless node.

[0100] The control signaling received by the first wireless node at block 808 may indicate at least one interfered RS resource for QCL information. Operation 800 may further include the first wireless node identifying at least one interfered RS resource according to an indication of a TCI state having QCL information included in the control signaling. Identifying at least one interfered RS resource by the first wireless node may include: explicitly identifying from the monitored interfered RS resource identifier (such as an index value corresponding to the resource) included in the control signaling, or implicitly identifying using the monitored CSI-RS transmitted by the second wireless node, where the monitored CSI-RS is associated with one of the one or more interfered RS resources being monitored.

[0101] The control signaling received by the first wireless node at block 808 may suppress indicating any monitored interfered RS resource for QCL information. Operation 800 may further include the first wireless node identifying that the indication of any monitored interfered RS is suppressed for the QCL information in the control signaling for the indication of the TCI state having QCL information.

[0102] If the control signaling indicates at least one interfered RS resource from one or more interfered RS resources being monitored for QCL information, the first wireless node may determine spatial reception parameters based on the at least one interfered RS resource indicated by the control signaling at block 810. In other aspects, if the control signaling suppresses indicating any interfered RS resource for QCL information, the first wireless node may determine spatial reception parameters at block 810 regardless of the one or more interfered RS resources being monitored.

[0103] The reference signal resource configuration may further indicate performing monitoring of one or more interfered RS resources on a semi-persistent, periodic, aperiodic, or dynamic basis. At block 804, the first wireless node may monitor one or more interfered RSs on a semi-persistent, periodic, aperiodic, or dynamic basis indicated by the reference signal resource configuration.

[0104] Each of one or more interfering RS resources may correspond to at least one frequency band or sub - band of the carrier bandwidth. For example, the reference signal resource configuration may further indicate the frequency band or sub - band associated with each of the one or more interfering RS resources.

[0105] The first wireless node may be a user equipment, and the second wireless node may be a base station. The first wireless node may be a child node or a relay node, and the second wireless node may be a donor node, as described herein with reference to Figure 22 further described.

[0106] Figure 9 is a flowchart illustrating an example operation 900 for scheduling full - duplex communication based on interference reported at the interfering RS resource level in accordance with certain aspects of the present disclosure. Operation 900 may be performed, for example, by a second wireless node (e.g., BS110). In some aspects, as described in more detail herein, the second wireless node may be a donor node.

[0107] Operation 900 may be complementary to operation 800 performed by the first wireless node. Operation 900 may be implemented as a software component executed and run on one or more processors (e.g., Figure 2 the controller / processor 240). Additionally, signal transmission and reception performed by the BS in operation 900 may be implemented, for example, by one or more antennas (e.g., Figure 2 the antenna 234). In some aspects, the transmission and / or reception of signals by the BS may be implemented via a bus interface of one or more processors (e.g., controller / processor 240) that obtain and / or output signals.

[0108] Operation 900 may begin at block 902 where a second wireless node (e.g., BS 110) transmits a reference signal resource configuration to a first wireless node (e.g., UE 120a), the reference signal resource configuration indicating one or more interference RS resources associated with interference reference signal (RS) transmissions from other wireless nodes (e.g., UE 120b or 120c). At block 904, the second wireless node may receive a beam interference report from the first wireless node, the beam interference report indicating one or more interference levels of a received beam at the first wireless node based at least in part on the one or more interference RS resources. At block 906, the second wireless node may transmit control signaling to the first wireless node indicating QCL information. The QCL information may indicate to suppress use of any interference RS resources in the reference signal resource configuration when determining spatial reception parameters, or to identify at least one interference RS resource in the reference signal resource configuration to use when determining spatial reception parameters. At block 908, the second wireless node may schedule full-duplex communication involving the first wireless node (e.g., UE 120a) and one or more other wireless nodes (e.g., UE 120b or 120c) based at least in part on the beam interference report.

[0109] At block 902, the reference signal resource configuration may further indicate to perform averaging of interference levels over multiple monitoring instances. The reference signal resource configuration may further indicate a number of interference RS repetitions over time associated with each of the one or more interference RS resources. In some cases, all interference RS repetitions associated with one of the one or more interference RS resources may correspond to the same transmit beam.

[0110] The reference signal resource configuration may further indicate one or more CSI-RS resources associated with CSI-RS transmissions from the second wireless node. Each of the CSI-RS resources may be associated with at least one of the one or more interference RS resources. The beam interference report may indicate one or more interference levels based on at least one of the one or more interference RS resources or one or more CSI-RS resources. In some aspects, multiple of the one or more interference RS resources may be associated with the same CSI-RS resource. In other aspects, each of the one or more interference RS resources may be associated with a different one of the one or more CSI-RS resources. The one or more CSI-RS resources may include at least one NZP-CSI-RS resource.

[0111] The one or more interference RS resources may be SRS resources or CSI-RS resources different from one or more CSI-RS resources transmitted by the second wireless node.

[0112] In some aspects, the control signaling at block 906 may further indicate at least one interference RS resource for QCL information. In other aspects, the control signaling may suppress the indication of any interference RS resources for QCL information.

[0113] The reference signal resource configuration may further indicate monitoring of one or more interference RS resources on a semi-persistent, periodic, aperiodic, or dynamic basis.

[0114] Each of the one or more interference RS resources may correspond to at least one frequency band or sub-band of the carrier bandwidth. For example, the reference signal resource configuration may further indicate the frequency band or sub-band associated with each of the one or more interference RS resources.

[0115] The first wireless node may be a user equipment, and the second wireless node may be a base station. The first wireless node may be a child node or a relay node, while the second wireless node may be a donor node, as described herein with reference to Figure 22 further described.

[0116] Figure 10 is a flow diagram depicting an example operation 1000 for downlink beam management based on an interference RS resource set according to certain aspects of the present disclosure. Operation 1000 may be performed, for example, by a first wireless node (e.g., UE 120a or UE-1). In certain aspects, as described in more detail herein, the first wireless node may be a child node or a relay node.

[0117] Operation 1000 may be implemented as a software component executed and run on one or more processors (e.g., Figure 2 the controller / processor 280). Additionally, the signal transmission and reception performed by the UE in operation 1000 may be implemented, for example, by one or more antennas (e.g., Figure 2 the antenna 252). In certain aspects, the transmission and / or reception of signals by the UE may be implemented by obtaining and / or outputting signals via a bus interface of one or more processors (e.g., the controller / processor 280).

[0118] Operation 1000 may begin at block 1002 where a first wireless node (e.g., UE 120a) receives, from a second wireless node (e.g., BS 110), a reference signal resource configuration that indicates one or more interference RS resource sets associated with interference reference signal transmissions. Each interference RS resource set may include one or more interference RS resources. At block 1004, the first wireless node may monitor one or more interference RSs via one or more interference RS resources corresponding to the one or more interference RS resource sets. At block 1006, the first wireless node may determine, for each of the one or more interference RS resource sets, at least one receive beam based at least in part on each of the one or more monitored interference RS resources corresponding to at least one of the one or more interference RS resource sets. At block 1008, the first wireless node may receive control signaling from the second wireless node that indicates QCL information. The QCL information may indicate to refrain from using any of the monitored interference RS resource sets when determining spatial reception parameters, or to identify at least one of the monitored interference RS resource sets to use when determining spatial reception parameters. At block 1010, the first wireless node may determine spatial reception parameters based on the control signaling.

[0119] In some aspects, determining the at least one receive beam at block 1006 may be based on reducing interference associated with the one or more monitored interference RS resource sets.

[0120] Operation 1000 may further include the first wireless node generating a beam interference report that includes the interference level of one or more of the determined receive beams, based at least in part on the one or more monitored interference RS resource sets. The first wireless node may transmit the beam interference report to the second wireless node.

[0121] The reference signal resource configuration may further indicate performing averaging of interference levels over multiple monitoring instances. The first wireless node may generate the beam interference report by at least partially averaging the interference levels over the multiple monitoring instances.

[0122] The reference signal resource configuration may further indicate a number of interference RS repetitions over time associated with each of the one or more interference RS resource sets. Each of the number of interference RS repetitions may be associated with an interference RS resource in one of the one or more interference RS resource sets. All of the interference RS repetitions associated with one of the one or more interference RS resources may correspond to the same transmit beam.

[0123] The reference signal resource configuration may further indicate one or more CSI-RS resources associated with the CSI-RS transmission from a second wireless node. Each of the one or more CSI-RS resources may be associated with at least one of one or more interference RS resource sets. At block 1004, the first wireless node may monitor one or more CSI-RS from the second wireless node via the one or more CSI-RS resources. The first wireless node may generate a beam interference report based at least in part on the one or more monitored CSI-RS. In some aspects, multiple ones of the one or more interference RS resource sets may be associated with the same CSI-RS resource. In other aspects, each of the one or more interference RS resource sets may be associated with a different resource among the one or more CSI-RS resources. The one or more CSI-RS resources may include at least one NZP-CSI-RS resource.

[0124] In certain aspects, the first wireless node may determine at least one receive beam based on reducing interference associated with the one or more monitored interference RS resource sets. The interference associated with each of the one or more monitored interference RS resource sets may be determined based at least in part on one of the one or more interference RS resource sets and a corresponding CSI-RS resource among the one or more CSI-RS resources.

[0125] The beam interference report may indicate one or more interference levels associated with at least one of the one or more monitored interference RS resource sets or the one or more CSI-RS resources. The signal power of the SINR of the interference RS resource set or the CSI-RS resource may be determined based on the CSI-RS resource associated with the interference RS resource set. The interference power or interference power level of the SINR of the interference RS resource set or the CSI-RS resource may be determined based on the interference RS resource set.

[0126] The one or more interference RS resource sets may include SRS resources or CSI-RS resources different from the one or more CSI-RS resources transmitted by the second wireless node.

[0127] The control signaling received by the first wireless node at block 1008 may further indicate at least one interference RS for QCL information. Operation 1000 may further include the first wireless node identifying at least one interference RS resource set according to an indication of a TCI state having QCL information included in the control signaling. Identifying the at least one interference RS resource set may include: explicitly identifying from a monitored interference RS resource set identifier (such as an index value corresponding to the resource set) included in the control signaling; or implicitly identifying using the monitored CSI-RS transmitted by the second wireless node, where the monitored CSI-RS is associated with one of the one or more monitored interference RS resource sets.

[0128] The control signaling received by the first wireless node at block 1008 may suppress the indication of any interfering RS resource group for QCL information. Operation 1000 may further include the first wireless node identifying that the indication of the TCI state with QCL information suppresses the indication of any monitored interfering RS group for the QCL information in the control signaling.

[0129] If the control signaling indicates, for QCL information, at least one interfering RS resource group from one or more monitored interfering RS resource groups, the first wireless node may determine a spatial reception parameter at block 1010 based on the at least one interfering RS resource group indicated by the control signaling. If the control signaling does not indicate at least one interfering RS resource for QCL information, the first wireless node may determine the spatial reception parameter at block 1010 regardless of the one or more monitored interfering RS resource groups.

[0130] The reference signal resource configuration may further indicate that the monitoring of one or more interfering RS resource groups is performed on a semi-persistent, periodic, aperiodic, or dynamic basis. At block 1004, the first wireless node may monitor one or more interfering RSs on a semi-persistent, periodic, aperiodic, or dynamic basis indicated by the reference signal resource configuration.

[0131] Each of the one or more interfering RS resource groups may correspond to at least one frequency band or sub-band of the carrier bandwidth. For example, the reference signal resource configuration may further indicate the frequency band or sub-band associated with each of the one or more interfering RS resource groups.

[0132] The first wireless node may be a user equipment, and the second wireless node may be a base station. The first wireless node may be a child node, and the second wireless node may be a donor node, as further described herein Figure 22 as described.

[0133] Figure 11 is a flow diagram illustrating an example operation 1100 for scheduling full-duplex communication based on interference reported at the interfering RS resource group level in accordance with certain aspects of the present disclosure. Operation 1100 may be performed, for example, by a second wireless node (e.g., BS110). In certain aspects, as described in more detail herein, the second wireless node may be a donor node.

[0134] Operation 1100 may be complementary to operation 1000 performed by the UE. Operation 1100 may be implemented as a software component executed and run on one or more processors (e.g., Figure 2 the controller / processor 240). Further, the signal transmission and reception performed by the BS in operation 1100 may be, for example, by one or more antennas (e.g., Figure 2implemented by the antenna 234). In some aspects, the transmission and / or reception of signals by the BS may be implemented via a bus interface of one or more processors (e.g., the controller / processor 240) that obtain and / or output signals.

[0135] Operation 1100 may start at block 1102 with the second wireless node (e.g., BS 110) transmitting a reference signal resource configuration to the first wireless node (e.g., UE 120a), the reference signal resource configuration indicating one or more interference RS resource sets associated with interference RS transmissions. Each interference RS resource set may include one or more interference RS resources. At block 1104, the second wireless node may receive a beam interference report from the first wireless node, the beam interference report indicating one or more interference levels of the received beam at the first wireless node based at least in part on the one or more interference RS resource sets. At block 1106, the second wireless node may transmit control signaling indicating QCL information to the first wireless node. The QCL information may indicate: suppressing the use of any monitored interference RS resource set in the reference signal resource configuration when determining spatial reception parameters, or identifying at least one monitored interference RS resource set in the reference signal resource configuration to be used when determining spatial reception parameters. At block 1108, the second wireless node may schedule full-duplex communication involving the first wireless node and one or more other wireless nodes (e.g., UE 120b or 120c) based at least in part on the beam interference report.

[0136] At block 1102, the reference signal resource configuration may further indicate performing averaging of interference levels over a plurality of monitoring instances. The reference signal resource configuration may further indicate a number of interference RS repetitions over time associated with each of the one or more interference RS resource sets. Each of the number of interference RS repetitions is associated with an interference RS resource in one of the one or more interference RS resource sets. All interference RS repetitions associated with one of the one or more interference RS resources may correspond to the same transmit beam.

[0137] The reference signal resource configuration may further indicate one or more CSI-RS resources associated with CSI-RS transmissions from the second wireless node. Each of the one or more CSI-RS resources may be associated with at least one of the one or more interference RS resource sets. The beam interference report may indicate one or more interference levels based on at least one of the one or more interference RS resource sets or the one or more CSI-RS resources. In some aspects, multiple of the one or more interference RS resource sets may be associated with the same CSI-RS resource. In other aspects, each of the one or more interference RS resource sets may be associated with a different resource among the one or more CSI-RS resources. The one or more CSI-RS resources may include at least one NZP-CSI-RS resource.

[0138] One or more interfering RS resource sets may include SRS resources or CSI-RS resources different from one or more CSI-RS resources transmitted by a second radio node.

[0139] In some aspects, the control signaling of block 1106 may further indicate at least one interfering RS resource set for QCL information. In other aspects, the control signaling may suppress indicating any interfering RS resource sets for QCL information.

[0140] The reference signal resource configuration may further indicate monitoring one or more interfering RS resource sets on a semi-persistent, periodic, aperiodic, or dynamic basis.

[0141] Each of the one or more interfering RS resource sets may correspond to at least one frequency band or sub-band of the carrier bandwidth. For example, the reference signal resource configuration may further indicate the frequency band or sub-band associated with each of the one or more interfering RS resource sets.

[0142] The first radio node may be a user equipment, and the second radio node may be a base station. The first radio node may be a child node, and the second radio node may be a donor node, as further described herein Figure 22 as further described.

[0143] Example Uplink Beam Management Enhancements for Full Duplex

[0144] Certain aspects of the present disclosure provide techniques for uplink beam refinement in full-duplex communication applications. For example, UE-1 may monitor interference reference signal (RS) resources from one or more UE-2s and determine a preferred transmit beam to transmit an uplink transmission to the BS while receiving interference signals from the UE-2(s).

[0145] Figure 12Example full-duplex wireless communication system 1200 for Tx beam refinement using beam sweeping for each SRS resource, according to certain aspects of the present disclosure. For example, certain aspects relate to Tx beam refinement using beam sweeping for each SRS resource. As illustrated, UE-1 120a may be configured with multiple SRS resources 1202, 1204 to monitor, where each SRS resource is configured with a transmit beam sweep, and each swept transmit beam has a beam index to facilitate feedback of the best transmit beam. For example, UE-1 may measure the interference of one or more swept beams (e.g., single, partial, or all) corresponding to each SRS resource. Additionally, BS110 may configure CSI-RS (e.g., NZP-CSI-RS) resources 1206, 1208 associated with the SRS resource(s) to UE-1, and instruct UE-1 that UE-1 should use CSI-RS as the signal and SRS as the interference to calculate the signal-to-interference-plus-noise ratio (SINR) as the measurement metric to be fed back to BS110.

[0146] In certain aspects, UE-1 may report (e.g., via an interference report) the measurement results of one or more preferred beams for all interfering RS resources (e.g., SRS resources), or for each interfering RS resource, report the measurement results of one or more preferred beams, or report the measurement results for all swept beams regarding all interfering RS resources. For example, the report of the measurement results may include one or any combination of the following: (1) reporting the beam index of the preferred beam for a specific interfering RS resource, (2) the interfering RS resource index of the interfering RS resource involved, and (3) the CSI-RS resource index associated with the interfering RS resource involved.

[0147] For example, multiple UE-2s 120b, 120c (e.g., referred to as the first UE-2 and the second UE-2, respectively) may be configured to sweep beams using respective SRS resources 1202, 1204 (e.g., SRS resource #1 and SRS resource #2), as Figure 12As explained. BS110 can also transmit CSI-RS via CSI-RS Resource #1 1206 associated with SRS Resource #1 1202 and via CSI-RS Resource #2 1208 associated with SRS Resource #2 1204. In some aspects, the CSI-RS transmission can occur before the SRS transmission, after the SRS transmission, or can occur simultaneously. Subsequently, UE-1 can report interference corresponding to one or more of the swept Tx beams of the first UE-2 and the swept Tx beams of the second UE-2. For example, as described herein, UE-1 can consider the CSI-RS transmission from BS110 as a signal and the SRS of the swept beam as interference to calculate the SINR as a measurement metric, which can be fed back to the gNB (e.g., via the interference report described herein) for determining UE pairing.

[0148] Figure 13 is a signaling flow diagram illustrating an example operation 1300 for beam management in accordance with certain aspects of the present disclosure. As illustrated, at 1302, BS110 can transmit an RS resource configuration indicating the interference RS resources to be monitored to UE 120a (e.g., UE-1). At 1304, UE 120a can then receive interference RS transmitted via a transmit beam by UE-2 120b via the interference RS resources. In some aspects, as illustrated, at 1306, UE 120a can optionally receive CSI-RS from BS110. At 1308, UE 120a can generate an interference report indicating the results of interference measurements performed based on the interference RS at 1304. At 1310, the interference report can be transmitted to BS110 to determine full-duplex scheduling at 1312. BS110 can then transmit quasi co-location (QCL) information indicating spatial parameters for UE 120a to UE 120b (e.g., UE-2) at 1314 to determine spatial parameters, as described in more detail herein, at 1316. Subsequently, UE 120a and UE 120b can perform full-duplex communication 1318, 1320 based on the configured spatial parameters.

[0149] Figure 14 is a flow diagram illustrating an example operation 1400 for wireless communication in accordance with certain aspects of the present disclosure. Operation 1400 can be performed, for example, by a first wireless node such as a BS (e.g., BS110 in wireless communication network 100). Operation 1400 can be implemented as a software component executed and run on one or more processors (e.g., Figure 2 the controller / processor 240). Additionally, the signal transmission and reception performed by the BS in operation 400 can be, for example, by one or more antennas (e.g., Figure 2is implemented by an antenna 234). In some aspects, the transmission and / or reception of signals by the BS can be implemented via a bus interface of one or more processors (e.g., the controller / processor 240) that obtain and / or output signals. In some aspects, for example, as referred to herein Figure 22 As described, operation 1400 can be performed by an integrated access or backhaul (IAB) node.

[0150] Operation 1400 can start at block 1402 by a first wireless node transmitting a reference signal (RS) resource configuration to a second wireless node (e.g., UE-1), the RS resource configuration indicating one or more interference RS resources (e.g., sounding reference signal (SRS) resources) to be monitored. One or more interference RSs for each of the one or more interference RS resources can be associated with multiple transmit beams. In some aspects, operation 400 can further include: transmitting another RS resource configuration to one of one or more other wireless nodes (e.g., UE-2), the other RS resource configuration indicating the one or more interference RS resources for transmitting one or more interference RSs for the one or more interference RS resources via multiple transmit beams.

[0151] At block 1404, the first wireless node receives an interference report that indicates interference associated with at least one of the multiple transmit beams for one or more interference RSs for each of the one or more interference RS resources, and at block 1406, schedules full-duplex communication involving the second wireless node and one or more other wireless nodes at least partially based on the interference report.

[0152] Figure 15 is a flowchart illustrating an example operation 1500 for wireless communication in accordance with certain aspects of the present disclosure. Operation 1500 can be performed, for example, by a first wireless node such as a UE (e.g., UE 120 in the wireless communication network 100). For example, operation 1500 can be performed by UE-1 as described herein with reference to Figure 12 and 13 described.

[0153] Operation 1500 can be complementary to operation 1400 performed by the BS. Operation 1500 can be implemented as a software component executed and run on one or more processors (e.g., Figure 2 controller / processor 280). Further, the transmission and reception of signals by the UE in operation 500 can be implemented, for example, by one or more antennas (e.g., Figure 2 antenna 252). In some aspects, the transmission and / or reception of signals by the UE can be implemented via a bus interface of one or more processors (e.g., controller / processor 280) that obtain and / or output signals. In some aspects, for example, as referred to Figure 22As described, the first wireless node can be a child node.

[0154] Operation 1500 can start at block 1502 where the first wireless node (e.g., UE-1) receives, from a second wireless node (e.g., BS110), an RS resource configuration indicating one or more interference reference signal (RS) resources, and at block 1504, monitor one or more interference RSs for each of the one or more interference RS resources. The one or more interference RSs for each of the one or more interference RS resources can be associated with multiple transmit beams. At block 1506, the first wireless node measures the interference associated with at least one of the multiple beams for the one or more interference RSs for each of the one or more interference RS resources, at block 1508, generates an interference report based on the measurement, and at block 1510 transmits the interference report to the second wireless node.

[0155] In some cases, the interference report can indicate one or more preferred beams among the multiple transmit beams associated with several of the one or more interference RS resources. The indication can include at least one of the following: one or more beam indices associated with one or more preferred beams for each of several of the one or more interference RS resources, or one or more interference RS resource indices associated with each of several of the one or more interference RS resources corresponding to one or more preferred beams. In some aspects, the interference report can also indicate one or more preferred beams for several of the one or more interference RS resources by indicating the interference level associated with each of the one or more preferred beams among the multiple transmit beams for the several of the one or more interference RS resources.

[0156] In some cases, UE-1 can determine the number of preferred beams for several of the one or more interference RS resources. In other cases, UE-1 can determine the number of several of the one or more interference RS resources. The determination made by UE-1 can be based on at least one of the RS resource configuration or as predefined in the standard. In some cases, at least one of the following is satisfied: the number of preferred beams for each of several of the one or more interference RS resources among the multiple transmit beams can be equal to or less than the number of associated multiple beams, or can be only 1. In some cases, the number of several of the one or more interference RS resources can be equal to or less than the number of the one or more interference RS resources, or can be only 1.

[0157] In some aspects, the RS resource configuration may also indicate one or more channel state information reference signal (CSI-RS) resources (e.g., non-zero power (NZP) CSI-RS resources). Each of the one or more CSI-RS resources may be associated with at least one of the one or more interference RS resources. In such a case, the first wireless node may also monitor at least one CSI-RS via each of the one or more CSI-RS resources and measure the received signal parameters associated with the at least one CSI-RS for each of the one or more CSI-RS resources. The interference report may indicate the received signal parameters associated with the at least one CSI-RS for each of the one or more CSI-RS resources. In some aspects, the interference report indicates one or more CSI-RS indices associated with the one or more interference RS resources.

[0158] In some aspects, the one or more interference RS resources may be multiple interference RS resources associated with the same CSI-RS resource, or each of the one or more interference RS resources may be associated with a different CSI-RS resource among the one or more CSI-RS resources. In some cases, the one or more interference RS resources may be one or more other CSI-RS resources different from the one or more CSI-RS resources, as described in more detail herein.

[0159] Figure 16is an example full-duplex wireless communication system 1600 for Tx beam refinement using beam sweeping and interference RS resource sets 1602, 1604 (e.g., SRS resource sets) in accordance with certain aspects of the present disclosure. For example, UE 120a (e.g., UE-1) may be configured with multiple interference RS resource sets 1602, 1604 (e.g., SRS resource sets) to monitor, each interference RS resource set being transmitted by the same UE 120b, 120c (e.g., UE-2). As illustrated, a first UE-2 may be configured with an interference RS resource set 1604 including interference RS resources #1 to #5. Thus, UE 120c may use interference RS resources #1 to 5 to perform beam sweeping. Similarly, UE 120b may be configured with an interference RS resource set 1602 including interference RS resources #6 - #10 and use the configured interference RS resource set to perform beam sweeping. BS110 may also transmit CSI-RS using CSI-RS resource #1 1606 associated with interference RS resource set #1 1604 and using CSI-RS resource #2 1608 associated with interference RS resource set #2 1602. Subsequently, UE 120a monitors resources for CSI-RS and interference RS transmissions and measures the interference of the CSI-RS transmission from a single, partial, or all of the interference RS resources. For example, as described herein, BS110 may configure the CSI-RS resources associated with the (an) SRS resource set(s) to UE 120a. UE120a may consider the CSI-RS as a signal and the SRS as interference to calculate the SINR as a measurement metric to be reported. For example, UE 120a may report measurement results for one or more preferred SRS resources, the measurement results being based on one or any combination of the following: (1) the SRS resource set index including the preferred SRS resource, (2) the SRS resource index of the preferred SRS resource, and (3) the CSI-RS resource index associated with the SRS resource set including the preferred SRS resource.

[0160] Figure 17 is a flow chart illustrating an example operation 1700 for wireless communication in accordance with certain aspects of the present disclosure. Operation 1700 may be performed, for example, by a first wireless node such as a BS (e.g., BS110 in wireless communication network 100). Operation 1700 may be implemented as a software component executed and run on one or more processors (e.g., Figure 2 the controller / processor 240). Further, the signal transmission and reception performed by the BS in operation 1700 may be, for example, by one or more antennas (e.g., Figure 2implemented by the antenna 234). In some aspects, the transmission and / or reception of signals by the BS may be implemented via the bus interface of one or more processors (e.g., the controller / processor 240) that obtain and / or output signals. In some aspects, for example, as referred to Figure 22 described, the first wireless node may be an IAB node.

[0161] Operation 1700 may begin at block 1702 with the first wireless node transmitting an RS resource configuration to a second wireless node (e.g., UE-2), the RS resource configuration indicating one or more interference RS resource sets (e.g., SRS resource sets) to be monitored. One or more interference RSs for each of the one or more interference RS resource sets may be associated with a plurality of transmit beams. At block 1704, the first wireless node receives an interference report that indicates, for each of the one or more interference RSs of each of the one or more interference RS resource sets, interference associated with at least one of the plurality of transmit beams, and at block 1706, schedules full-duplex communication involving the second wireless node and one or more other wireless nodes at least partially based on the interference report.

[0162] Figure 18 is a flow chart illustrating example operation 1800 for wireless communication in accordance with certain aspects of the present disclosure. Operation 1800 may be performed, for example, by a first wireless node such as a UE (e.g., UE 120 in wireless communication network 100). For example, operation 1800 may be performed by UE-1 as described herein with reference to Figure 16 described. In some aspects, for example, as referred to Figure 22 described, the first wireless node may be a child node.

[0163] Operation 1800 may be complementary to operation 1700 performed by the BS. Operation 1800 may be implemented as a software component executed and run on one or more processors (e.g., Figure 2 the controller / processor 280). Additionally, the transmission and reception of signals by the UE in operation 800 may be implemented, for example, by one or more antennas (e.g., Figure 2 the antenna 252). In some aspects, the transmission and / or reception of signals by the UE may be implemented via the bus interface of one or more processors (e.g., the controller / processor 280) that obtain and / or output signals.

[0164] Operation 1800 may begin at block 1802 where a first wireless node receives, from a second wireless node (e.g., BS110), an RS resource configuration indicating one or more interfering RS resource sets via a first wireless node, and at block 1804, monitor one or more interfering RSs for each of the one or more interfering RS resource sets. The one or more interfering RSs for each of the one or more interfering RS resource sets may be associated with multiple transmit beams. At block 1806, the first wireless node measures interference associated with at least one of the multiple beams for the one or more interfering RSs for each of the one or more interfering RS resource sets, at block 1808, the first wireless node generates an interference report based on the measurement, and at block 1510, the first wireless node transmits the interference report to the second wireless node.

[0165] Certain aspects of the present disclosure generally relate to Tx beam refinement using beam correspondence. For example, there may be beam correspondence between a selected receive beam and a transmit beam. Thus, UE-2 may be configured to select a receive beam and transmit using the corresponding transmit beam, as described in more detail herein.

[0166] Figure 19 is a signaling flow diagram illustrating example operation 1900 for beam management using beam correspondence in accordance with certain aspects of the present disclosure. As illustrated, at 1902, BS110 may transmit an RS resource configuration indicating one or more interfering RS resources to be monitored to UE 120b (e.g., UE-2). At 1904, UE 120b may then receive interfering RSs transmitted by UE 120a (e.g., UE-1) via repeated Tx beams, as described herein. At block 1906, UE 120b may determine an Rx beam based on the one or more interfering RSs, and at block 1908, UE 120b may select a Tx beam corresponding to the determined Rx beam, and the two beams may be used for full-duplex communication 1910 simultaneous with full-duplex communication 1912 by UE 120a.

[0167] In some aspects, Tx beam refinement using a beam may be based on the SRS resources of a warp group. For example, UE-2 may be configured with one or more SRS resources to monitor, and at least a particular subset of SRS resources is in a repeating on. The particular subset of SRS resources may be transmitted by the same UE-1. As described herein, UE-1 may use the beam previously used for PUSCH transmission as the repeating beam. For each subset of SRS resources under repeating on, UE-2 may use the repeating to find the best Rx beam. The best Rx beam may provide the lowest received power at UE-2. UE-2 may use the Tx beam associated with the determined Rx beam for any future PUSCH or SRS transmission associated with any one of the resources of UE-1 or the subset of SRS resources involved in the Rx and Tx beam determination.

[0168] Figure 20 is a flowchart illustrating an example operation 2000 for wireless communication in accordance with certain aspects of the present disclosure. Operation 2000 may be performed, for example, by a first wireless node such as a UE (e.g., UE 120 in wireless communication network 100). For example, operation 2000 may be performed by UE-1 as described herein with reference to Figure 19 described. In some aspects, for example, as described with reference to Figure 22 the first wireless node may be a donor node.

[0169] Operation 2000 may be implemented as a software component executed and run on one or more processors (e.g., Figure 2 the controller / processor 280). Additionally, signal transmission and reception by the UE in operation 2000 may be implemented, for example, by one or more antennas (e.g., Figure 2 the antenna 252). In some aspects, the transmission and / or reception of signals by the UE may be implemented by obtaining and / or outputting signals via a bus interface of one or more processors (e.g., the controller / processor 280).

[0170] Operation 2000 may begin at block 2002 where a first wireless node receives, via a first wireless node, an RS resource configuration indicating one or more interference RS resources from a second wireless node (e.g., BS110), and at block 2004, monitors one or more interference RS via the one or more interference RS resources. At block 2006, the first wireless node may determine, for each of the one or more interference RS resources, a receive beam based on one or more interference RS of the one or more interference RS resources. The receive beam may be one of a plurality of receive beams used to receive the one or more interference RS, and the receive beam has the lowest receive power among the plurality of receive beams. At block 2008, the first wireless node selects a transmit beam corresponding to the receive beam (e.g., assuming a correspondence between Rx and Tx beams), and at block 2010, transmits signaling to the second wireless node via the transmit beam.

[0171] For the selection of the receive beam, beam refinement may be performed based on a plurality of interference RS (e.g., SRS resources) resources, each interference RS resource being implemented repeatedly. In other words, the same beam may be repeated by a UE (e.g., UE-1) across multiple interference RS resources to allow another UE (e.g., UE-2) to select the best Rx beam, as described with reference to Figure 19 as described. For example, UE-2 may be configured with one or more SRS resources to monitor, each SRS resource being turned on repeatedly, as described herein. Each SRS resource may be transmitted by a specific UE-1. UE-1 may use the beam previously used for PUSCH transmission as the repeated beam. For each of the SRS resource repetitions, UE-2 may use the repetition to find the best Rx beam. The best Rx beam may be the beam that provides the lowest receive power at UE-2. Thus, assuming a correspondence between Tx and Rx beams, UE-2 may use the Tx beam associated with the determined Rx beam for any future PUSCH or SRS transmission associated with any of the resources or SRS resources of UE-1.

[0172] Certain aspects of the present disclosure generally relate to the determination of spatial relationship information for both full-duplex and half-duplex resources. For example, one or more of the interference RS resources described herein may be one or more full-duplex interference resources. In some cases, the RS resource configuration may also indicate one or more half-duplex interference RS resources. UE-1 may be configured to indicate, via the interference reporting described herein, another interference associated with each of the one or more interference RS of each of the one or more half-duplex interference RS resources for each of a plurality of transmit beams.

[0173] In some aspects, BS110 may transmit an indication of quasi-co-location (QCL) information to UE-2, where the QCL information indicates: first spatial relation information to be used for transmission via one or more full-duplex interference resources and second spatial relation information to be used for transmission via one or more half-duplex interference resources, and receive signaling from UE-2 according to the QCL information. For example, as described herein with reference to Figure 13 For example, the indication of the QCL information may be based on the first spatial relation information regarding user equipment (UE)-specific physical uplink control channel (PUCCH) transmission and may include radio resource control (RRC), media access control-control element (MAC-CE), or downlink control information (DCI). Or the indication of the QCL information may be based on the second spatial relation information regarding UE-specific physical uplink shared channel (PUSCH) transmission and may include RRC, MAC-CE, or DCI.

[0174] Figure 21 FIG. 2100 is a flow chart illustrating an example operation 2100 for wireless communication in accordance with some aspects of the present disclosure. Operation 2100 may be performed, for example, by a first wireless node such as a UE (e.g., UE 120 in wireless communication network 100). For example, operation 2100 may be performed by UE-2 as described herein with reference to Figure 13 and 19 In some aspects, for example, as described with reference to Figure 22 the first wireless node may be a donor node.

[0175] Operation 2100 may be implemented as a software component executed and run on one or more processors (e.g., Figure 2 controller / processor 280). In addition, signal transmission and reception by the UE in operation 2100 may be implemented, for example, by one or more antennas (e.g., Figure 2 antenna 252). In some aspects, signal transmission and / or reception by the UE may be implemented by obtaining and / or outputting signals via a bus interface of one or more processors (e.g., controller / processor 280).

[0176] Operation 2100 may begin at block 2102 where a first radio node (e.g., UE-2) receives from a second radio node (e.g., BS110) an RS resource configuration indicating one or more full-duplex interference RS resources and one or more half-duplex interference RS resources via the first radio node, and at block 2104, transmit one or more interference RSs for each of the one or more full-duplex interference RS resources and the one or more half-duplex interference resources. At block 2106, the first radio node receives from the second radio node an indication of QCL information after transmitting the one or more interference RSs, the QCL information indicating: first spatial relation information to be used for transmission via the one or more full-duplex interference resources and second spatial relation information to be used for transmission via the one or more half-duplex interference resources, and at block 2108, signaling is transmitted to the second radio node according to the QCL information.

[0177] For example, for UE-specific PUCCH, the spatial relation information configured by a higher layer or MAC-CE (e.g., also referred to as PUCCH spatial relation information configuration) may include up to two resource indices, one resource index for transmission in only UL Tx resources (e.g., also referred to as half-duplex resources), and another resource index for transmission in full-duplex Tx resources. The selection of RSs for PUCCH Tx beam determination may be based on semi-statically configured only UL and full-duplex time-frequency resources. For example, based on SRS resources under beam sweeping, BS110 may configure two SRS resources under beam sweeping to UE-2 for Tx beam refinement, one resource associated with only UL transmission and the other resource associated with full-duplex transmission. After beam refinement measurements are made using the SRS resources, in the PUCCH spatial relation information configuration, for each SRS resource, BS110 may configure one beam sweeping index as the Tx beam associated with the corresponding scenario (e.g., for full-duplex and half-duplex resources).

[0178] Similarly, for the SRS resources of the warp-knitted group, gNB may configure two SRS resource groups to UE-2 for Tx beam refinement, one resource group associated with only UL transmission and the other resource group associated with full-duplex transmission. After beam refinement measurements are made using these SRS resource sets, in the PUCCH spatial relation information configuration, for each resource set, BS110 may configure one SRS resource as the Tx beam associated with the corresponding scenario. In some aspects, for dynamically scheduled PUSCH, when the PUSCH transmission in a single time slot includes a mixture of only UL and full-duplex symbols, the SRS resource indicator (SRI) indicated in the downlink control information (DCI) scheduling of the PUSCH may include at least two SRS resources, each SRS resource respectively providing spatial relation information configuration for PUSCH transmission in only UL and full-duplex resources.

[0179] In some aspects of the present disclosure, as described herein, one or more interference RS resources can be SRS resources for SRS-based monitoring. In other aspects, CSI-RS resource-based interference monitoring can be implemented. For example, instead of SRS-based monitoring and reporting, UE-1 and UE-2 can be configured by BS110 to transmit and / or monitor CSI-RS resources for interference measurement. BS110 can configure UE-2 and UE-1 to transmit RS in the CSI-RS resources. The CSI-RS resources for interference measurement can be a single cluster, or multiple clusters separate from the CSI-RS resources transmitted by the BS for signal power measurement. In this case, the RS transmitted by UE-2 and UE-1 can be newly defined RS, or can be SRS. If CSI-RS is used for interference measurement, the corresponding reports (e.g., interference reports) discussed herein and the RS indicated for QCL information can be associated with the CSI-RS for interference measurement rather than SRS. In some aspects, the configuration of interference monitoring and reporting can be semi-persistent, periodic, aperiodic, or dynamic. In some aspects, the BS can also configure the UE monitoring interference to perform averaging of measurement metrics over multiple monitoring occasions.

[0180] Figure 22 An example wireless communication system 1200 for integrated access and backhaul (IAB) in accordance with some aspects of the present disclosure is illustrated. As shown, there can be a wireless backhaul link between an IAB node (donor node or relay node) 2202 and an IAB child node (relay node) 2204 or an IAB parent node (donor node) 2206. There can be a wireless access link between an access UE 2208 and the IAB node 2202. Although the examples provided herein have been described with respect to beam management for a BS (e.g., gNB) and UEs (e.g., UE-1 and UE-2) to facilitate understanding, the techniques described herein can be applied to the IAB node 2202, the IAB child node 2204, and the IAB parent node 2206. For example, the operations performed by BS110 can be performed by the IAB node 2202. As described herein, the operations performed by UE-1 and UE-2 can be performed by the IAB parent node 2206 and the IAB child node 2204, or vice versa.

[0181] Figure 23 Illustrated can include operations configured to perform the techniques disclosed herein, such as Figures 7 - 11, a communication device 2300 (e.g., UE 120, BS 110, IAB node 2202, sub-node 2204, or parent node 2206) of various components (e.g., corresponding to apparatus-plus-function components) for the operations illustrated in 13-15 and 17-21. The communication device 2300 includes a processing system 2302 coupled to a transceiver 2308. The transceiver 2308 is configured to transmit and receive signals (such as the various signals described herein) for the communication device 2300 via an antenna 2310. The processing system 2302 may be configured to perform processing functions for the communication device 2300, including processing signals received and / or to be transmitted by the communication device 2300.

[0182] The processing system 2302 includes a processor 2304 coupled to a computer-readable medium / memory 2312 via a bus 2306. In some aspects, the computer-readable medium / memory 2312 is configured to store instructions (e.g., computer-executable code) that, when executed by the processor 2304, cause the processor 2304 to perform Figures 7 - 11 , the operations illustrated in 13-15 and 17-21 or other operations for performing the various techniques discussed herein. In some aspects, the computer-readable medium / memory 2312 may store code 2320 for receiving, code 2322 for monitoring, code 2324 for determining, code 2326 for generating, code 2328 for transmitting, and / or code 2330 for scheduling. In some aspects, the processor 2304 has circuitry configured to implement the code stored in the computer-readable medium / memory 2312. The processor 2304 may include circuitry 2340 for receiving, circuitry 2342 for monitoring, circuitry 2344 for determining, circuitry 2346 for generating, circuitry 2348 for transmitting, and / or circuitry 2350 for scheduling.

[0183] In addition to the above examples, many examples of specific combinations are also within the scope of the present disclosure, some of which are described in detail below:

[0184] Example 1. A device for wireless communication, comprising: a receiver configured to: receive a reference signal resource configuration from a wireless node, the reference signal resource configuration indicating one or more first interference reference signal (RS) resources associated with interference reference signal transmission or one or more interference RS resource groups associated with the interference reference signal transmission, wherein each of the interference RS resource groups includes one or more second interference RS resources; and receive control signaling indicating quasi-co-location (QCL) information from the wireless node, wherein the QCL information indicates: suppressing the use of any monitored interference RS resources in the reference signal resource configuration when determining spatial reception parameters, or identifying at least one monitored interference RS resource in the reference signal resource configuration to be used when determining the spatial reception parameters; and a processing system configured to: monitor one or more interference RSs via the one or more first interference RS resources or the one or more second interference RS resources, determine at least one receive beam for each of the one or more first interference RS resources or each of the interference RS resource groups, at least partially based on each of the one or more monitored interference RSs corresponding to at least one of the one or more first interference RS resources or the one or more second interference RS resources, and determine the spatial reception parameters according to the control signaling.

[0185] Example 2. The device of Example 1, wherein: the processing system is configured to determine the at least one receive beam based on reducing interference associated with the one or more monitored first interference RS resources or the one or more monitored interference RS resource groups.

[0186] Example 3. The device of Example 1, wherein: the processing system is configured to generate a beam interference report including the interference level of the at least one receive beam at least partially based on the one or more monitored first interference RS resources or the one or more monitored interference RS resource groups; and the device further includes a transmitter configured to transmit the beam interference report to the wireless node.

[0187] Example 4. The device of any of the preceding examples, wherein: the reference signal resource configuration further indicates the number of interference RS repetitions over time associated with each of the one or more first interference RS resources or each of the one or more interference RS resource groups; and all interference RS repetitions associated with one of the one or more interference RS resources correspond to the same transmit beam.

[0188] Example 5. The apparatus of Example 3, wherein: the reference signal resource configuration further indicates one or more CSI-RS signal resources associated with channel state information reference signal (CSI-RS) transmission from the radio node, wherein each of the one or more CSI-RS resources is associated with at least one of the one or more first interference RS resources or the one or more interference RS resource groups, and wherein the one or more CSI-RS resources include at least one non-zero power CSI-RS resource; the processing system is configured to: monitor one or more CSI-RS from the radio node via the one or more CSI-RS resources, and generate the beam interference report at least in part based on the monitored one or more CSI-RS.

[0189] Example 6. The apparatus of any one of Examples 3-5, wherein the beam interference report indicates one or more interference levels associated with at least one of the monitored one or more first interference RS resources, the monitored one or more interference RS resource groups, or the one or more CSI-RS resources.

[0190] Example 7. The apparatus of any one of the foregoing examples, wherein the one or more first interference RS resources are sounding reference signal (SRS) resources or CSI-RS resources different from the one or more CSI-RS resources transmitted by the radio node, or wherein the one or more interference RS resource groups include SRS resources or CSI-RS resources different from the one or more CSI-RS resources transmitted by the radio node.

[0191] Example 8. The apparatus of Example 1, wherein: the control signaling further indicates at least one interference RS resource for the QCL information; and the processing system is configured to: identify at least one interference RS resource according to an indication of a transmission configuration indicator (TCI) state having the QCL information included in the control signaling.

[0192] Example 9. The apparatus of Example 1, wherein: the control signaling suppresses an indication of any monitored interference RS resource for the QCL information; and the processing system is configured to identify that an indication of a TCI state having the QCL information suppresses an indication of any monitored interference RS for the QCL information in the control signaling, wherein the processing system is configured to: explicitly identify from the monitored interference RS resource identifier included in the control signaling; or implicitly identify using the monitored CSI-RS transmitted by the radio node, the monitored CSI-RS being associated with one of the monitored one or more first interference RS resources or one of the monitored one or more interference RS resource groups.

[0193] Example 10. The apparatus of any of the foregoing examples, wherein the apparatus is a user equipment or a child node, and the wireless node is a base station or a donor node.

[0194] Example 11. An apparatus for wireless communication, comprising: a receiver configured to receive, from a wireless node, a reference signal (RS) resource configuration indicating one or more interfering RS resources or one or more groups of interfering RS resources; a processing system configured to: monitor one or more interfering RSs for each interfering RS resource of the one or more interfering RS resources or for each group of interfering RS resources of the one or more groups of interfering RS resources, wherein the one or more interfering RSs for each interfering RS resource of the one or more interfering RS resources or for each group of interfering RS resources of the one or more groups of interfering RS resources are associated with a plurality of transmit beams; measure interference associated with at least one of the plurality of beams for the one or more interfering RSs for each interfering RS resource of the one or more interfering RS resources or for each group of interfering RS resources of the one or more groups of interfering RS resources; and generate an interference report based on the measurement; and a transmitter configured to transmit the interference report to the wireless node.

[0195] Example 12. The apparatus of Example 11, wherein the interference report indicates one or more preferred beams of the plurality of transmit beams, the one or more preferred beams being associated with several interfering RS resources of the one or more interfering RS resources or several groups of interfering RS resources of the one or more groups of interfering RS resources, by at least one of: one or more beam indexes associated with one or more preferred beams for each interfering RS resource of several interfering RS resources of the one or more interfering RS resources or for each group of interfering RS resources of several groups of interfering RS resources of the one or more groups of interfering RS resources; or one or more interfering RS resource indexes associated with each interfering RS resource of several interfering RS resources of the one or more interfering RS resources corresponding to the one or more preferred beams or with each group of interfering RS resources of several groups of interfering RS resources of the one or more groups of interfering RS resources corresponding to the one or more preferred beams.

[0196] Example 13. The apparatus of Example 12, wherein: the processing system is configured to determine at least one of the following: the number of preferred beams for several interference RS resources among the one or more interference RS resources or for several interference RS resource groups among the one or more interference RS resource groups, or the number of several interference RS resources among the one or more interference RS resources or the number of several interference RS resource groups among the one or more interference RS resource groups, wherein the determination is based on at least one of the following: the RS resource configuration, or as predefined in a standard or determined by the UE without further configuration or predefined.

[0197] Example 14. The apparatus of Example 12, wherein at least one of the following is satisfied: the number of preferred beams for each interference RS resource among several interference RS resources among the one or more interference RS resources or for each interference RS resource group among several interference RS resource groups among the one or more interference RS resource groups in the plurality of transmit beams is equal to or less than the number of associated multiple beams, or is only 1; or the number of several interference RS resources among the one or more interference RS resources or the number of several interference RS resource groups among the one or more interference RS resource groups is equal to or less than the number of the one or more interference RS resources or the number of the one or more interference RS resource groups, or is only 1.

[0198] Example 15. The apparatus of any one of Examples 12 to 14, wherein the processing system is configured to determine the one or more preferred beams based on reducing interference associated with one or more monitored interference RS resources, wherein the interference associated with one of the plurality of transmit beams is at least partially identified based on the interference RS associated with the beam.

[0199] Example 16. The apparatus of any of the foregoing examples, wherein: the RS resource configuration further indicates one or more channel state information reference signal (CSI-RS) resources, wherein each of the one or more CSI-RS resources is associated with at least one of the one or more interference RS resources or the one or more interference RS resource groups, and wherein the one or more CSI-RS resources include at least one non-zero power CSI-RS resource; and the processing system is configured to: monitor at least one CSI-RS via each of the one or more CSI-RS resources; and measure the received signal parameters associated with the at least one CSI-RS for each of the one or more CSI-RS resources, the interference report indicating the received signal parameters associated with the at least one CSI-RS for each of the one or more CSI-RS resources.

[0200] Example 17. The apparatus of Example 16, wherein the processing system is configured to calculate a signal-to-noise plus interference ratio (SINR) associated with at least one of the one or more interfering RS resources or the one or more groups of interfering RS resources, wherein: the interference parameter for SINR calculation corresponds to the interference associated with at least one of the one or more interfering RS resources or the one or more groups of interfering RS resources; the signal parameter for SINR calculation is the received signal parameter associated with the corresponding CSI-RS resource among the one or more CSI-RS resources; and the interference report indicates the SINR associated with at least one of the one or more interfering RS resources or the one or more groups of interfering RS resources.

[0201] Example 18. The apparatus of any of the foregoing examples, wherein: the one or more interfering RS resources or the one or more groups of interfering RS resources include one or more full-duplex interfering RS resources; the RS resource configuration further indicates one or more half-duplex interfering RS resources; the processing system is configured to: monitor the one or more interfering RS via each of the one or more half-duplex interfering RS resources; and measure another interference associated with each beam among the plurality of transmit beams for the one or more interfering RS for each of the one or more half-duplex interfering RS resources, and the interference report is further generated based on the measured other interference.

[0202] Example 19. The apparatus of any of the foregoing examples, wherein the one or more interfering RS resources are sounding reference signal (SRS) resources, or wherein the one or more groups of interfering RS resources are groups of sounding reference signal (SRS) resources.

[0203] Example 20. The apparatus of any of the foregoing examples, wherein the apparatus is a user equipment (UE) or a sub-node, and wherein the radio node is a base station or a donor node.

[0204] Example 21. An apparatus for wireless communication, comprising: a receiver configured to receive a reference signal (RS) resource configuration from a radio node, the RS resource configuration indicating one or more interfering RS resources; a processing system configured to: monitor one or more interfering RS via the one or more interfering RS resources; determine, for each of the one or more interfering RS resources, a receive beam based on the one or more interfering RS of the one or more interfering RS resources, wherein the receive beam is one of a plurality of receive beams used to receive the one or more interfering RS and has the lowest receive power among the plurality of receive beams; and select a transmit beam corresponding to the receive beam; and a transmitter configured to transmit signaling to the radio node via the transmit beam.

[0205] Example 22. The method of Example 21, wherein the device is a user equipment (UE) or a sub-node, and wherein the radio node is a base station or a donor node.

[0206] Example 23. A device for wireless communication, comprising: a receiver configured to receive a reference signal (RS) resource configuration from a radio node, the RS resource configuration indicating one or more full-duplex interference RS resources and one or more half-duplex interference RS resources; a transmitter configured to transmit one or more interference RSs for each of the one or more full-duplex interference RS resources and the one or more half-duplex interference resources, wherein: the receiver is further configured to: receive an indication of quasi-co-location (QCL) information from the radio node after transmitting the one or more interference RSs, the QCL information indicating: first spatial relation information to be used for transmission via the one or more full-duplex interference resources and second spatial relation information to be used for transmission via the one or more half-duplex interference resources; and the transmitter is further configured to transmit signaling to the radio node according to the QCL information.

[0207] Example 24. The method of Example 23, wherein the indication of the QCL information is based on first spatial relation information regarding user equipment (UE)-specific physical uplink control channel (PUCCH) transmission and includes radio resource control (RRC), medium access control-control element (MAC-CE), or downlink control information (DCI); or the indication of the QCL information is based on second spatial relation information regarding UE-specific physical uplink shared channel (PUSCH) transmission and includes RRC, MAC-CE, or DCI.

[0208] Example 25. The method of Example 24, wherein: the interference RS resource is a sounding reference signal (SRS) resource, and the QCL information indicating the first spatial information and the second spatial information includes a corresponding one of a first SRS resource indicator and a second SRS resource indicator.

[0209] Example 26. The method of Example 23, wherein the device is a user equipment (UE) or a sub-node, and wherein the second radio node is a base station or a donor node.

[0210] Example 27. A wireless communication method performed by a first wireless node, comprising: receiving, from a second wireless node, a reference signal resource configuration that indicates one or more interference reference signal (RS) resources associated with interference reference signal transmission; monitoring one or more interference RSs via the one or more interference RS resources; and for each of the one or more interference RS resources, determining at least one receive beam based at least in part on each of the one or more monitored interference RSs corresponding to at least one of the one or more interference RS resources; receiving, from the second wireless node, control signaling indicating quasi co-location (QCL) information, wherein the QCL information indicates: to suppress the use of any monitored interference RS resource in the reference signal resource configuration when determining spatial reception parameters, or to identify at least one monitored interference RS resource in the reference signal resource configuration to be used when determining the spatial reception parameters; and determining the spatial reception parameters according to the control signaling.

[0211] Example 28. The method of Example 27, wherein: determining the at least one receive beam is based on reducing interference associated with the one or more monitored interference RS resources.

[0212] Example 29. The method of Example 27, further comprising: generating a beam interference report including the interference level of the at least one receive beam based at least in part on the one or more monitored interference RS resources; and transmitting the beam interference report to the second wireless node.

[0213] Example 30. The method of Example 29, wherein: the reference signal resource configuration further indicates performing averaging of interference levels over a plurality of monitoring instances; and generating the beam interference report includes averaging the interference levels over the plurality of monitoring instances.

[0214] Example 31. The method of any of the foregoing examples, wherein: the reference signal resource configuration further indicates a number of interference RS repetitions over time associated with each of the one or more interference RS resources; and all interference RS repetitions associated with one of the one or more interference RS resources correspond to the same transmit beam.

[0215] Example 32. The method of Example 29, wherein: the reference signal resource configuration further indicates one or more CSI-RS signal resources associated with the transmission of channel state information reference signals (CSI-RS) from a second radio node, wherein each of the one or more CSI-RS resources is associated with at least one of the one or more interference RS resources; the monitoring includes: monitoring one or more CSI-RS from the second radio node via the one or more CSI-RS resources; and generating the beam interference report includes generating the beam interference report based at least in part on the one or more monitored CSI-RS.

[0216] Example 33. The method of Example 32, wherein a plurality of the one or more interference RS resources are associated with the same CSI-RS resource.

[0217] Example 34. The method of Example 32, wherein each of the one or more interference RS resources is associated with a different one of the one or more CSI-RS resources.

[0218] Example 35. The method of Example 32, wherein the one or more CSI-RS resources include at least one non-zero power CSI-RS resource.

[0219] Example 36. The method of Example 32, wherein: determining the at least one receive beam is based on reducing interference associated with the one or more monitored interference RS resources, wherein the interference associated with each of the one or more monitored interference RS resources is determined based at least in part on one of the one or more interference RS resources and the corresponding CSI-RS resource of the one or more CSI-RS resources.

[0220] Example 37. The method of Examples 29-36, wherein the beam interference report indicates one or more interference levels associated with at least one of the one or more monitored interference RS resources or the one or more CSI-RS resources.

[0221] Example 38. The method of Example 37, wherein: the one or more interference levels include at least one of a signal-to-interference-and-noise ratio (SINR) or an interference power level; the signal power of the SINR of the interference RS resource or the CSI-RS resource is determined based on the CSI-RS resource associated with the interference RS resource; and the interference power or interference power level of the SINR of the interference RS resource or the CSI-RS resource is determined based on the interference RS resource.

[0222] Example 39. A method as in any of the foregoing examples, wherein: the one or more interfering RS resources are sounding reference signal (SRS) resources or CSI-RS resources different from one or more CSI-RS resources transmitted by a second radio node.

[0223] Example 40. A method as in Example 27, wherein: the control signaling further indicates at least one interfering RS resource for the QCL information; and the method further includes identifying the at least one interfering RS resource based on an indication of a transmission configuration indicator (TCI) state having the QCL information included in the control signaling.

[0224] Example 41. A method as in Example 27, wherein: the control signaling suppresses an indication of any monitored interfering RS resource for the QCL information; and the method further includes identifying that an indication of a TCI state having QCL information suppresses an indication of any monitored interfering RS for the QCL information in the control signaling.

[0225] Example 42. A method as in Example 41, wherein identifying the at least one interfering RS resource further includes: explicitly identifying from a monitored interfering RS resource identifier included in the control signaling; or implicitly identifying using a monitored CSI-RS transmitted by a second radio node, the monitored CSI-RS being associated with one of the one or more monitored interfering RS resources.

[0226] Example 43. A method as in Example 27, wherein determining the spatial reception parameter includes: if the control signaling indicates at least one interfering RS resource from among one or more monitored interfering RS resources for the QCL information, determining the spatial reception parameter based on the at least one interfering RS resource indicated by the control signaling; or if the control signaling suppresses an indication of any interfering RS resource for the QCL information, determining the spatial reception parameter regardless of the one or more monitored interfering RS resources.

[0227] Example 44. A method as in any of the foregoing examples, wherein: the reference signal resource configuration further indicates performing monitoring of one or more interfering RS resources on a semi-persistent, periodic, aperiodic, or dynamic basis; and monitoring includes monitoring the one or more interfering RS on a semi-persistent, periodic, aperiodic, or dynamic basis indicated by the reference signal resource configuration.

[0228] Example 45. A method as in any of the foregoing examples, wherein: the one or more interfering RS resources correspond to at least one subband of a carrier bandwidth.

[0229] Example 46. A method as in any of the foregoing examples, wherein the first radio node is a user equipment and the second radio node is a base station.

[0230] Example 47. The method according to any one of the foregoing examples, wherein the first wireless node is a child node and the second wireless node is a donor node.

[0231] Example 48. A wireless communication method performed by a first wireless node, comprising: receiving, from a second wireless node, a reference signal resource configuration that indicates one or more interference reference signal (RS) resource sets associated with interference reference signal transmission, wherein each of the interference RS resource sets includes one or more interference RS resources; monitoring one or more interference RSs via the one or more interference RS resources corresponding to the one or more interference RS resource sets; and for each of the one or more interference RS resource sets, determining at least one receive beam based at least in part on each of the one or more monitored interference RS resources corresponding to at least one of the one or more interference RS resource sets; receiving control signaling from the second wireless node that indicates quasi-co-location (QCL) information, wherein the QCL information indicates: to suppress the use of any monitored interference RS resource set in the reference signal resource configuration when determining spatial reception parameters, or to identify at least one monitored interference RS resource set in the reference signal resource configuration to be used when determining the spatial reception parameters; and determining the spatial reception parameters according to the control signaling.

[0232] Example 49. The method according to Example 48, wherein: determining the at least one receive beam is based on reducing interference associated with the one or more monitored interference RS resource sets.

[0233] Example 50. The method according to Example 48, further comprising: generating a beam interference report including one or more of the determined receive beams based at least in part on the one or more monitored interference RS resource sets; and transmitting the beam interference report to the second wireless node.

[0234] Example 51. The method according to Example 48, further comprising: wherein the reference signal resource configuration further indicates performing averaging of interference levels over a plurality of monitoring instances; and wherein generating the beam interference report includes averaging the interference levels over the plurality of monitoring instances.

[0235] Example 52. The method according to any one of the foregoing examples, wherein: the reference signal resource configuration further indicates a number of interference RS repetitions over time associated with each of the one or more interference RS resource sets; and each of the number of interference RS repetitions is associated with an interference RS resource in one of the one or more interference RS resource sets; and all interference RS repetitions associated with one of the one or more interference RS resources correspond to the same transmit beam.

[0236] Example 53. The method of Example 50, wherein: the reference signal resource configuration further indicates one or more CSI-RS signal resources associated with channel state information reference signal (CSI-RS) transmissions from a second radio node, where each of the one or more CSI-RS resources is associated with at least one of the one or more interference RS resource groups; the monitoring includes: monitoring one or more CSI-RS from the second radio node via the one or more CSI-RS resources; and generating the beam interference report includes generating the beam interference report based at least in part on the one or more monitored CSI-RS.

[0237] Example 54. The method of Example 53, wherein a plurality of the one or more interference RS resource groups are associated with the same CSI-RS resource.

[0238] Example 55. The method of Example 53, wherein each of the one or more interference RS resource groups is associated with a different one of the one or more CSI-RS resources.

[0239] Example 56. The method of Example 53, wherein the one or more CSI-RS resources include at least one non-zero power CSI-RS resource.

[0240] Example 57. The method of Example 53, wherein: determining the at least one receive beam is based on reducing interference associated with the one or more monitored interference RS resource groups, where the interference associated with each of the one or more monitored interference RS resource groups is determined at least in part based on one of the one or more interference RS resource groups and the corresponding CSI-RS resource of the one or more CSI-RS resources.

[0241] Example 58. The method of any one of Examples 50-57, wherein the beam interference report indicates one or more interference levels associated with at least one of the one or more monitored interference RS resource groups or the one or more CSI-RS resources.

[0242] Example 59. The method of Example 58, wherein: the one or more interference levels include at least one of a signal to interference and noise ratio (SINR) or an interference power level; the signal power of the SINR of the interference RS resource group or CSI-RS resource is determined based on the CSI-RS resource associated with the interference RS resource group; and the interference power or interference power level of the SINR of the interference RS resource group or CSI-RS resource is determined based on the interference RS resource group.

[0243] Example 60. A method as in any of the foregoing examples, wherein: the one or more interferer RS resource sets include sounding reference signal resources or CSI-RS resources different from one or more CSI-RS resources transmitted by a second wireless node.

[0244] Example 61. A method as in Example 48, wherein: the control signaling further indicates at least one interferer RS for the QCL information; and the method further includes identifying the at least one interferer RS resource set based on an indication of a transmission configuration indicator (TCI) state having the QCL information included in the control signaling.

[0245] Example 62. A method as in Example 48, wherein: the control signaling suppresses an indication of any monitored interferer RS resource set for the QCL information; and the method further includes identifying that an indication of a TCI state having QCL information suppresses an indication of any monitored interferer RS set for the QCL information in the control signaling.

[0246] Example 63. A method as in Example 61, wherein identifying the at least one interferer RS resource set further includes: explicitly identifying from a monitored interferer RS resource set identifier included in the control signaling; or implicitly identifying using a monitored CSI-RS transmitted by a second wireless node, the monitored CSI-RS being associated with one of the one or more monitored interferer RS resource sets.

[0247] Example 64. A method as in Example 48, wherein determining the spatial reception parameter includes: if the control signaling indicates at least one interferer RS group from among the one or more monitored interferer RS groups for the QCL information, determining the spatial reception parameter based on the at least one interferer RS resource set indicated by the control signaling; or if the control signaling does not indicate at least one interferer RS for the QCL information, determining the spatial reception parameter regardless of the one or more monitored interferer RS resource sets.

[0248] Example 65. A method as in any of the foregoing examples, wherein: the reference signal resource configuration further indicates monitoring of the one or more interferer RS resource sets on a semi-persistent, periodic, aperiodic, or dynamic basis; and monitoring includes monitoring the one or more interferer RS on a semi-persistent, periodic, aperiodic, or dynamic basis indicated by the reference signal resource configuration.

[0249] Example 66. A method as in any of the foregoing examples, wherein: the one or more interferer RS resource sets correspond to at least one sub-band of a carrier bandwidth.

[0250] Example 67. A method as in any of the foregoing examples, wherein: the first wireless node is a user equipment and the second wireless node is a base station.

[0251] Example 68. A method as in any of the foregoing examples, wherein the first wireless node is a child node and the second wireless node is a donor node.

[0252] Example 69. A wireless communication method performed by a second wireless node, comprising: transmitting a reference signal resource configuration to the second wireless node, the reference signal resource configuration indicating one or more interference reference signal (RS) resources associated with interference reference signal transmission; receiving a beam interference report from the first wireless node, the beam interference report indicating one or more interference levels of a receiving beam at the first wireless node based at least in part on the one or more interference RS resources; transmitting control signaling indicating quasi co-location (QCL) information to the first wireless node, wherein the QCL information indicates: to suppress the use of any interference RS resources in the reference signal resource configuration when determining spatial reception parameters, or to identify at least one interference RS resource in the reference signal resource configuration to be used when determining the spatial reception parameters; and scheduling full-duplex communication involving the first wireless node and one or more other wireless nodes based at least in part on the beam interference report.

[0253] Example 70. A method as in Example 69, wherein the reference signal resource configuration further indicates taking an average of interference levels over a plurality of monitoring occasions.

[0254] Example 71. A method as in Example 69 or 70, wherein: the reference signal resource configuration further indicates a number of interference RS repetitions over time associated with each of the one or more interference RS resources; and all interference RS repetitions associated with one of the one or more interference RS resources correspond to the same transmit beam.

[0255] Example 72. A method as in Example 71, wherein: the reference signal resource configuration further indicates one or more CSI-RS signal resources associated with channel state information reference signal (CSI-RS) transmission from the second wireless node, wherein each of the CSI-RS resources is associated with at least one of the one or more interference RS resources; and the beam interference report indicates one or more interference levels based on at least one of the one or more interference RS resources or the one or more CSI-RS resources.

[0256] Example 73. A method as in Example 72, wherein a plurality of the one or more interference RS resources are associated with the same CSI-RS resource.

[0257] Example 74. A method as in Example 72, wherein each of the one or more interference RS resources is associated with a different one of the one or more CSI-RS resources.

[0258] Example 75. A method as in Example 72, wherein the one or more CSI-RS resources include at least one non-zero power CSI-RS resource.

[0259] Example 76. A method as in any of the foregoing examples, wherein: the one or more interference RS resources are sounding reference signal (SRS) resources or CSI-RS resources different from one or more CSI-RS resources transmitted by a second wireless node.

[0260] Example 77. A method as in Example 69, wherein the control signaling further indicates at least one interference RS resource for QCL information.

[0261] Example 78. A method as in Example 69, wherein the control signaling suppresses indicating any interference RS resource for QCL information.

[0262] Example 79. A method as in any of the foregoing examples: the reference signal resource configuration may further indicate monitoring the one or more interference RS resources on a semi-persistent, periodic, aperiodic, or dynamic basis.

[0263] Example 80. A method as in any of the foregoing examples, wherein: the one or more interference RS resources correspond to at least one sub-band of a carrier bandwidth.

[0264] Example 81. A method as in any of the foregoing examples, wherein: the first wireless node is a user equipment and the second wireless node is a base station.

[0265] Example 82. A method as in any of the foregoing examples, wherein: the first wireless node is a child node and the second wireless node is a donor node.

[0266] Example 83. A wireless communication method performed by a second wireless node, comprising: transmitting a reference signal resource configuration to a first wireless node, the reference signal resource configuration indicating one or more groups of interference RS resources associated with interference reference signal (RS) transmissions, wherein each of these groups of interference RS resources includes one or more interference RS resources; receiving a beam interference report from the first wireless node, the beam interference report indicating one or more interference levels of a received beam at the first wireless node based at least in part on the one or more groups of interference RS resources; transmitting control signaling indicating quasi-co-location (QCL) information to the first wireless node, wherein the QCL information indicates: suppressing using any monitored group of interference RS resources in the reference signal resource configuration when determining spatial reception parameters, or identifying at least one monitored group of interference RS resources in the reference signal resource configuration to be used when determining the spatial reception parameters; and scheduling full-duplex communication involving the first wireless node and one or more other wireless nodes at least in part based on the beam interference report.

[0267] Example 84. The method of Example 83, wherein the reference signal resource configuration further indicates performing averaging of interference levels over multiple monitoring occasions.

[0268] Example 85. The method of Example 83 or 84, wherein: the reference signal resource configuration further indicates a number of interference RS repetitions over time associated with each of the one or more interference RS resource groups; each of the number of interference RS repetitions is associated with an interference RS resource in one of the one or more interference RS resource groups; and all interference RS repetitions associated with one of the one or more interference RS resources correspond to the same transmit beam.

[0269] Example 86. The method of Example 85, wherein: the reference signal resource configuration further indicates one or more CSI-RS signal resources associated with state information reference signal (CSI-RS) transmissions from a second wireless node, wherein each of the one or more CSI-RS resources is associated with at least one of the one or more interference RS resource groups; and the beam interference report indicates one or more interference levels based on at least one of the one or more interference RS resource groups or the one or more CSI-RS resources.

[0270] Example 87. The method of Example 85, wherein a plurality of the one or more interference RS resources are associated with the same CSI-RS resource.

[0271] Example 88. The method of Example 85, wherein each of the one or more interference RS resources is associated with a different resource among the one or more CSI-RS resources.

[0272] Example 89. The method of Example 85, wherein the one or more CSI-RS resources include at least one non-zero power CSI-RS resource.

[0273] Example 90. The method of any of the foregoing examples, wherein: the one or more interference RS resource groups include sounding reference signal (SRS) resources or CSI-RS resources different from one or more CSI-RS resources transmitted by a second wireless node.

[0274] Example 91. The method of Example 83, wherein the control signaling further indicates at least one interference RS group for QCL information.

[0275] Example 92. The method of Example 83, wherein the control signaling suppresses indicating any interference RS group for the QCL information.

[0276] Example 93. A method as in any of the preceding examples: The reference signal resource configuration may further indicate monitoring the one or more interference RS resource sets on a semi-persistent, periodic, aperiodic, or dynamic basis.

[0277] Example 94. A method as in any of the preceding examples, wherein: the one or more interference RS resource sets correspond to at least one sub-band of a carrier bandwidth.

[0278] Example 95. A method as in any of the preceding examples, wherein: the first wireless node is a user equipment and the second wireless node is a base station.

[0279] Example 96. A method as in any of the preceding examples, wherein: the first wireless node is a child node and the second wireless node is a donor node.

[0280] Example 97. An apparatus for wireless communication, comprising: a receiver configured to: receive from a wireless node a reference signal resource configuration that indicates one or more interference reference signal (RS) resources associated with interference reference signal transmission; and receive from the wireless node control signaling indicating quasi-co-location (QCL) information, wherein the QCL information indicates: suppressing use of any monitored interference RS resources in the reference signal resource configuration when determining spatial reception parameters, or identifying at least one monitored interference RS resource in the reference signal resource configuration to be used when determining the spatial reception parameters; and a processing system configured to: perform one or more interference RS via the one or more interference RS resources; for each of the one or more interference RS resources, determine at least one receive beam based at least in part on each of the one or more monitored interference RS corresponding to at least one of the one or more interference RS resources; and determine the spatial reception parameters according to the control signaling.

[0281] Example 98. A device for wireless communication, comprising: a receiver configured to: receive, from a wireless node, a reference signal resource configuration indicating one or more interference reference signal (RS) resource groups associated with interference reference signal transmission, wherein each of the interference RS resource groups includes one or more interference RS resources; and receive, from the wireless node, control signaling indicating quasi-co-location (QCL) information, wherein the QCL information indicates: suppressing the use of any monitored interference RS resource group in the reference signal resource configuration when determining spatial reception parameters, or identifying at least one monitored interference RS resource group in the reference signal resource configuration to be used when determining the spatial reception parameters; and a processing system configured to: monitor one or more interference RSs via the one or more interference RS resources corresponding to the one or more interference RS resource groups; for each of the one or more interference RS resource groups, determine at least one reception beam based at least in part on each of the monitored one or more interference RS resources corresponding to at least one of the one or more interference RS resource groups; and determine the spatial reception parameters according to the control signaling.

[0282] Example 99. A device for wireless communication, comprising: a transmitter configured to: transmit, to a wireless node, a reference signal resource configuration indicating one or more interference reference signal (RS) resources associated with interference reference signal transmission; and transmit, to the wireless node, control signaling indicating quasi-co-location (QCL) information, wherein the QCL information indicates: suppressing the use of any interference RS resource in the reference signal resource configuration when determining spatial reception parameters, or identifying at least one interference RS resource in the reference signal resource configuration to be used when determining the spatial reception parameters; a receiver configured to: receive, from the wireless node, a beam interference report indicating one or more interference levels of reception beams at the wireless node based at least in part on the one or more interference RS resources; and a processing system configured to: schedule full-duplex communication involving the wireless node and one or more other wireless nodes based at least in part on the beam interference report.

[0283] Example 100. A device for wireless communication, comprising: a transmitter configured to: transmit to a wireless node a reference signal resource configuration indicating one or more interference reference signal (RS) resources associated with interference reference signal transmission; and transmit to the wireless node control signaling indicating quasi co-location (QCL) information, wherein the QCL information indicates: suppressing use of any of the interference RS resources in the reference signal resource configuration when determining spatial reception parameters, or identifying at least one interference RS resource in the reference signal resource configuration to be used when determining the spatial reception parameters; a receiver configured to: receive from the wireless node a beam interference report indicating one or more interference levels of a received beam at the wireless node based at least in part on the one or more interference RS resources; and a processing system configured to: schedule full-duplex communication involving the wireless node and one or more other wireless nodes based at least in part on the beam interference report.

[0284] Example 101. A device for wireless communication, comprising: means for receiving from a wireless node a reference signal resource configuration indicating one or more interference reference signal (RS) resources associated with interference reference signal transmission; means for monitoring one or more interference RSs via the one or more interference RS resources; and means for determining, for each of the one or more interference RS resources, at least one received beam based at least in part on each of the one or more monitored interference RSs corresponding to at least one of the one or more interference RS resources; means for receiving from the wireless node control signaling indicating quasi co-location (QCL) information, wherein the QCL information control signaling indicates: suppressing use of any of the monitored interference RS resources in the reference signal resource configuration when determining spatial reception parameters, or identifying at least one monitored interference RS resource in the reference signal resource configuration to be used when determining the spatial reception parameters; and means for determining the spatial reception parameters according to the control signaling.

[0285] Example 102. A device for wireless communication, comprising: means for receiving a reference signal resource configuration from a wireless node, the reference signal resource configuration indicating one or more interference reference signal (RS) resource groups associated with interference reference signal transmission, wherein each of the interference RS resource groups includes one or more interference RS resources; means for monitoring one or more interference RSs via the one or more interference RS resources corresponding to the one or more interference RS resource groups; and means for determining at least one receive beam for each of the one or more interference RS resource groups, at least in part based on each of the one or more monitored interference RS resources corresponding to at least one of the one or more interference RS resource groups; means for receiving control signaling from the wireless node indicating quasi co-location (QCL) information, wherein the QCL information indicates: suppressing the use of any monitored interference RS resource group in the reference signal resource configuration when determining spatial reception parameters, or identifying at least one monitored interference RS resource group in the reference signal resource configuration to be used when determining the spatial reception parameters; and means for determining the spatial reception parameters according to the control signaling.

[0286] Example 103. A device for wireless communication, comprising: means for transmitting a reference signal resource configuration to a wireless node, the reference signal resource configuration indicating one or more interference reference signal (RS) resources associated with interference reference signal transmission; means for receiving a beam interference report from the wireless node, the beam interference report indicating one or more interference levels of receive beams at the wireless node based at least in part on the one or more interference RS resources; means for transmitting control signaling indicating quasi co-location (QCL) information to the wireless node, wherein the QCL information indicates: suppressing the use of any interference RS resource in the reference signal resource configuration when determining spatial reception parameters, or identifying at least one interference RS resource in the reference signal resource configuration to be used when determining the spatial reception parameters; and means for scheduling full-duplex communication involving the wireless node and one or more other wireless nodes at least in part based on the beam interference report.

[0287] Example 104. A device for wireless communication, comprising: means for transmitting a reference signal resource configuration to a wireless node, the reference signal resource configuration indicating one or more interference reference signal (RS) resource groups associated with interference reference signal (RS) transmission, wherein each of the interference RS resource groups includes one or more interference RS resources; means for receiving a beam interference report from the wireless node, the beam interference report indicating one or more interference levels of a received beam at the wireless node based at least in part on the one or more interference RS resource groups; means for transmitting control signaling indicating quasi-co-location (QCL) information to the wireless node, wherein the QCL information indicates: suppressing the use of any monitored interference RS resource group in the reference signal resource configuration when determining spatial reception parameters, or identifying at least one monitored interference RS resource group in the reference signal resource configuration to be used when determining the spatial reception parameters; and means for scheduling full-duplex communication involving the wireless node and one or more other wireless nodes based at least in part on the beam interference report.

[0288] Example 105. A computer-readable medium storing instructions for: receiving a reference signal resource configuration from a wireless node, the reference signal resource configuration indicating one or more interference reference signal (RS) resources associated with interference reference signal transmission; monitoring one or more interference RS via the one or more interference RS resources; determining, for each of the one or more interference RS resources, at least one received beam based at least in part on each of the monitored one or more interference RS corresponding to at least one of the one or more interference RS resources; receiving control signaling indicating quasi-co-location (QCL) information from the wireless node, wherein the QCL information control signaling indicates: suppressing the use of any monitored interference RS resource group in the reference signal resource configuration when determining spatial reception parameters, or identifying at least one monitored interference RS resource group in the reference signal resource configuration to be used when determining the spatial reception parameters; and determining the spatial reception parameters according to the control signaling.

[0289] Example 106. A computer-readable medium storing instructions for: receiving, from a wireless node, a reference signal resource configuration that indicates one or more interference reference signal (RS) resource sets associated with interference reference signal transmissions, where each of the interference RS resource sets includes one or more interference RS resources; monitoring one or more interference RSs via the one or more interference RS resources corresponding to the one or more interference RS resource sets; and for each of the one or more interference RS resource sets, determining at least one receive beam based at least in part on each of the one or more monitored interference RS resources corresponding to at least one of the one or more interference RS resource sets; receiving, from the wireless node, control signaling indicating quasi-co-location (QCL) information, where the QCL information indicates: to suppress using any monitored interference RS resource set in the reference signal resource configuration when determining spatial reception parameters, or to identify at least one monitored interference RS resource set in the reference signal resource configuration to use when determining the spatial reception parameters; and determining the spatial reception parameters according to the control signaling.

[0290] Example 107. A computer-readable medium storing instructions for: transmitting, to a wireless node, a reference signal resource configuration that indicates one or more interference reference signal (RS) resources associated with interference reference signal transmissions; receiving, from the wireless node, a beam interference report that indicates one or more interference levels of receive beams at the wireless node based at least in part on the one or more interference RS resources; transmitting, to the wireless node, control signaling indicating quasi-co-location (QCL) information, where the QCL information indicates: to suppress using any interference RS resource in the reference signal resource configuration when determining spatial reception parameters, or to identify at least one interference RS resource in the reference signal resource configuration to use when determining the spatial reception parameters; and scheduling full-duplex communication involving the wireless node and one or more other wireless nodes based at least in part on the beam interference report.

[0291] Example 108. A computer-readable medium having instructions stored thereon for: transmitting a reference signal resource configuration to a wireless node, the reference signal resource configuration indicating one or more interference reference signal (RS) resource groups associated with interference reference signal (RS) transmissions, wherein each of the interference RS resource groups includes one or more interference RS resources; receiving, from the wireless node, a beam interference report indicating one or more interference levels of a receive beam at the wireless node based at least in part on the one or more interference RS resource groups; transmitting control signaling to the wireless node indicating quasi co-location (QCL) information, wherein the QCL information indicates to suppress use of any monitored interference RS resource group in the reference signal resource configuration when determining spatial reception parameters, or to identify at least one monitored interference RS resource group in the reference signal resource configuration to use when determining the spatial reception parameters; and scheduling full-duplex communication involving the wireless node and one or more other wireless nodes based at least in part on the beam interference report.

[0292] Example 109. A method for wireless communication by a first wireless node, comprising: receiving, from a second wireless node, an RS resource configuration indicating one or more interference reference signal (RS) resources; monitoring one or more interference RSs for each of the one or more interference RS resources, wherein the one or more interference RSs for each of the one or more interference RS resources are associated with a plurality of transmit beams; measuring interference associated with at least one of the plurality of beams for the one or more interference RSs for each of the one or more interference RS resources; generating an interference report based on the measurement; and transmitting the interference report to the second wireless node.

[0293] Example 110. The method of Example 109, wherein the interference report indicates one or more preferred beams among the plurality of transmit beams associated with several interference RS resources of the one or more interference RS resources by at least one of: one or more beam indices associated with one or more preferred beams for each of the several interference RS resources of the one or more interference RS resources; or one or more interference RS resource indices associated with each of the several interference RS resources of the one or more interference RS resources corresponding to the one or more preferred beams.

[0294] Example 111. The method of Example 110, wherein the interference report further indicates one or more preferred beams for several interference RS resources of the one or more interference RS resources by indicating an interference level associated with each of the one or more preferred beams among the plurality of transmit beams for the several interference RS resources of the one or more interference RS resources.

[0295] Example 112. The method of Example 110 further includes determining at least one of the following: the number of preferred beams for several interference RS resources among the one or more interference RS resources, or the number of several interference RS resources among the one or more interference RS resources, where the determination is based on at least one of the following: the RS resource configuration, or predefined in a standard or determined by the UE without further configuration or predefined.

[0296] Example 113. The method of Example 110, wherein at least one of the following is satisfied: the number of preferred beams for each of several interference RS resources among the one or more interference RS resources in the plurality of transmit beams is equal to or less than the number of associated multiple beams, or is only 1; or the number of several interference RS resources among the one or more interference RS resources is equal to or less than the number of the one or more interference RS resources, or is only 1.

[0297] Example 114. The method of any one of Examples 110 - 113 further includes determining the one or more preferred beams based on reducing interference associated with one or more monitored interference RS resources, where the interference associated with one beam among the plurality of transmit beams is at least partially identified based on the interference RS associated with the beam.

[0298] Example 115. The method of Example 109, wherein: the RS resource configuration further indicates performing averaging of interference over multiple monitoring occasions; and generating an interference report indicating the average of interference over multiple monitoring occasions according to the RS resource configuration.

[0299] Example 116. The method of any of the foregoing examples, wherein: the RS resource configuration further indicates performing monitoring of one or more interference RS resources on a semi - persistent, periodic, aperiodic, or dynamic basis; and the one or more interference RS are monitored on a semi - persistent, periodic, aperiodic, or dynamic basis indicated by the RS resource configuration.

[0300] Example 117. A method as in any one of Examples 109 - 115, wherein the RS resource configuration further indicates one or more channel state information reference signal (CSI-RS) resources, each of the one or more CSI-RS resources being associated with at least one of the one or more interference RS resources; and the method further comprises: monitoring at least one CSI-RS via each of the one or more CSI-RS resources; and measuring a received signal parameter associated with the at least one CSI-RS for each of the one or more CSI-RS resources, the interference report indicating the received signal parameter associated with the at least one CSI-RS for each of the one or more CSI-RS resources.

[0301] Example 118. The method of Example 117, wherein the interference report indicates one or more CSI-RS indices associated with one or more interference RS resources.

[0302] Example 119. The method of Example 117, wherein the one or more CSI-RS resources include at least one non-zero power CSI-RS resource.

[0303] Example 120. The method of Example 117, wherein the one or more interference RS resources include multiple interference RS resources associated with the same CSI-RS resource.

[0304] Example 121. The method of Example 117, wherein each of the one or more interference RS resources is associated with a different resource among the one or more CSI-RS resources.

[0305] Example 122. The method of Example 117, wherein the one or more interference RS resources include one or more other CSI-RS resources different from the one or more CSI-RS resources.

[0306] Example 123. The method of any one of Examples 117 - 122, further comprising: determining the one or more preferred beams based on reducing interference associated with the one or more monitored interference RS resources, wherein the interference associated with one of the plurality of transmit beams is identified at least in part based on the interference RS associated with the beam and the corresponding CSI-RS resource among the one or more CSI-RS resources.

[0307] Example 124. The method of Example 117 further comprises: calculating a signal-to-noise plus interference ratio (SINR) associated with at least one of the one or more interfering RS resources, wherein: the interference parameter for the SINR calculation corresponds to the interference associated with at least one of the one or more interfering RS resources; the signal parameter for the SINR calculation is the received signal parameter associated with the corresponding CSI-RS resource among the one or more CSI-RS resources; and the interference report indicates the SINR associated with at least one of the one or more interfering RS resources.

[0308] Example 125. The method of any one of Examples 109-124, wherein the one or more interfering RS resources comprise one or more full-duplex interference resources. The RS resource configuration further indicates one or more half-duplex interfering RS resources; the method further comprises: monitoring the one or more interfering RS via each of the one or more half-duplex interfering RS resources; and measuring another interference associated with each beam of the plurality of transmit beams for the one or more interfering RS of each of the one or more half-duplex interfering RS resources, wherein the interference report is further generated based on the measured another interference.

[0309] Example 126. The method of any one of Examples 109-124, wherein the one or more interfering RS resources are sounding reference signal (SRS) resources.

[0310] Example 127. The method of any one of Examples 109-124, wherein the first wireless node is a user equipment (UE), and wherein the second wireless node is a base station.

[0311] Example 128. The method of any one of Examples 109-122, wherein the first wireless node is a child node, and wherein the second wireless node is a donor node.

[0312] Example 129. A method for wireless communication by a first wireless node, comprising: receiving, from a second wireless node, an RS resource configuration indicating a group of one or more interfering reference signal (RS) resources; monitoring one or more interfering RS for each of the group of one or more interfering RS resources, wherein the one or more interfering RS for each of the group of one or more interfering RS resources are associated with a plurality of transmit beams; measuring interference associated with at least one beam of the plurality of beams for the one or more interfering RS of each of the group of one or more interfering RS resources; generating an interference report based on the measurement; and transmitting the interference report to the second wireless node.

[0313] Example 130. The method of Example 129, wherein the interference report indicates one or more preferred beams among the plurality of transmit beams associated with several interference RS resource groups in the one or more interference RS resource groups by at least one of the following: one or more beam indexes associated with one or more preferred beams for each of several interference RS resource groups in the one or more interference RS resource groups; or one or more interference RS resource indexes associated with each of several interference RS resource groups in the one or more interference RS resource groups corresponding to the one or more preferred beams.

[0314] Example 131. The method of Example 130, wherein the interference report further indicates one or more preferred beams for several interference RS resource groups in the one or more interference RS resource groups by: indicating the interference level associated with each of the one or more preferred beams among the one or more preferred beams for several interference RS resource groups in the one or more interference RS resource groups among the plurality of transmit beams.

[0315] Example 132. The method of Example 130, further comprising: determining at least one of the following: the number of preferred beams for several interference RS resource groups in the one or more interference RS resource groups, or the number of several interference RS resource groups in the one or more interference RS resource groups, wherein the determination is based on at least one of the following: the RS resource configuration, or predefined in a standard or determined by the UE without further configuration or predefined.

[0316] Example 133. The method of Example 130, wherein at least one of the following is satisfied: the number of preferred beams for each of several interference RS resource groups in the one or more interference RS resource groups among the plurality of transmit beams is equal to or less than the number of associated multiple beams, or is only 1; or the number of several interference RS resource groups in the one or more interference RS resource groups is equal to or less than the number of the one or more interference RS resource groups, or is only 1.

[0317] Example 134. The method of any one of Examples 130-133, further comprising: determining the one or more preferred beams based on reducing the interference associated with one or more monitored interference RS resource groups, wherein the interference associated with one beam among the plurality of transmit beams is at least partially identified based on the interference RS associated with the beam.

[0318] Example 135. The method of Example 129, wherein: the RS resource configuration further indicates performing averaging of interference over a plurality of monitoring occasions; and generating an interference report indicating the average of interference over a plurality of monitoring occasions according to the RS resource configuration.

[0319] Example 136. A method as in any of the preceding examples, wherein: the RS resource configuration further indicates monitoring of one or more interference RS resource groups on a semi-persistent, periodic, aperiodic, or dynamic basis; and the one or more interference RSs are monitored on a semi-persistent, periodic, aperiodic, or dynamic basis indicated by the RS resource configuration.

[0320] Example 137. A method as in one of Examples 129 - 136, wherein the RS resource configuration further indicates one or more channel state information reference signal (CSI-RS) resources, wherein each of the one or more CSI-RS resources is associated with at least one of the one or more interference RS resource groups; and the method further comprises: monitoring at least one CSI-RS via each of the one or more CSI-RS resource groups; and measuring received signal parameters associated with at least one CSI-RS for each of the one or more CSI-RS resources, the interference report indicating the received signal parameters associated with at least one CSI-RS for each of the one or more CSI-RS resources.

[0321] Example 138. A method as in Example 137, wherein the interference report indicates one or more CSI-RS indices associated with one or more interference RS resource groups.

[0322] Example 139. A method as in Example 137, wherein the one or more CSI-RS resources include at least one non-zero power CSI-RS resource.

[0323] Example 140. A method as in Example 137, wherein the one or more interference RS resource groups include multiple interference RS resource groups associated with the same CSI-RS resource.

[0324] Example 141. A method as in Example 137, wherein each of the one or more interference RS resource groups is associated with a different one of the one or more CSI-RS resources.

[0325] Example 142. A method as in Example 137, wherein the one or more interference RS resource groups include one or more other CSI-RS resources, the one or more other CSI-RS resources being different from the one or more CSI-RS resources.

[0326] Example 143. The method of any one of Examples 137 - 142 further includes: determining the one or more preferred beams based on reducing interference associated with one or more interference RS resource sets being monitored, wherein interference associated with one of the plurality of transmit beams is identified at least in part based on interference RS associated with the beam and corresponding CSI - RS resources among the one or more CSI - RS resources.

[0327] Example 144. The method of Example 137 further includes: calculating a signal - to - noise - plus - interference ratio (SINR) associated with at least one of the one or more interference RS resource sets, wherein: an interference parameter for SINR calculation corresponds to interference associated with at least one of the one or more interference RS resource sets; a signal parameter for SINR calculation is a received signal parameter associated with corresponding CSI - RS resources among the one or more CSI - RS resources; and the interference report indicates the SINR associated with at least one of the one or more interference RS resource sets.

[0328] Example 145. The method of any one of Examples 129 - 144, wherein: the one or more interference RS resource sets include one or more full - duplex interference resources; the RS resource configuration further indicates one or more half - duplex interference RS resources; the method further includes: monitoring the one or more interference RS via each of the one or more half - duplex interference RS resources; and measuring another interference associated with each of the plurality of transmit beams for the one or more interference RS of each of the one or more half - duplex interference RS resources, and the interference report is further generated based on the measured another interference.

[0329] Example 146. The method of any one of Examples 129 - 144, wherein the one or more interference RS resource sets are sounding reference signal (SRS) resource sets.

[0330] Example 147. The method of any one of Examples 129 - 144, wherein the first wireless node is a user equipment (UE), and wherein the second wireless node is a base station.

[0331] Example 148. The method of any one of Examples 129 - 142, wherein the first wireless node is a child node, and wherein the second wireless node is a donor node.

[0332] Example 149. A method for wireless communication by a first wireless node, comprising: receiving, from a second wireless node, an RS resource configuration indicating one or more interference reference signal (RS) resources; monitoring one or more interference RSs via the one or more interference RS resources; for each of the one or more interference RS resources, determining a receive beam based on one or more interference RSs of the one or more interference RS resources, wherein the receive beam is one of a plurality of receive beams used to receive the one or more interference RSs, and the receive beam has the lowest receive power among the plurality of receive beams; selecting a transmit beam corresponding to the receive beam; and transmitting signaling to the second wireless node via the transmit beam.

[0333] Example 150. The method of Example 149, wherein the first wireless node is a user equipment (UE), and wherein the second wireless node is a base station.

[0334] Example 151. The method of Example 149, wherein the first wireless node is a child node, and wherein the second wireless node is a donor node.

[0335] Example 152. A method for wireless communication by a first wireless node, comprising: receiving, from a second wireless node, a reference signal (RS) resource configuration that indicates one or more full-duplex interference RS resources and one or more half-duplex interference RS resources; transmitting one or more interference RSs for each of the one or more full-duplex interference RS resources and the one or more half-duplex interference resources; receiving, after transmitting the one or more interference RSs, an indication of quasi-co-location (QCL) information from the second wireless node, the QCL information indicating first spatial relation information to be used for transmission via the one or more full-duplex interference resources and second spatial relation information to be used for transmission via the one or more half-duplex interference resources; and transmitting signaling to the second wireless node according to the QCL information.

[0336] Example 153. The method of Example 152, wherein the indication of the QCL information is based on first spatial relation information regarding UE-specific physical uplink control channel (PUCCH) transmission, and comprises radio resource control (RRC), media access control - control element (MAC-CE), or downlink control information (DCI); or the indication of the QCL information is based on second spatial relation information regarding UE-specific physical uplink shared channel (PUSCH) transmission, and comprises RRC, MAC-CE, or DCI.

[0337] Example 154. The method of Example 153, wherein: the interference RS resource is an SRS resource, and the QCL information indicating the first spatial information and the second spatial information includes one of the corresponding first SRS resource indicator and the second SRS resource indicator.

[0338] Example 155. The method of Example 152, wherein the first radio node is a user equipment (UE), and wherein the second radio node is a base station.

[0339] Example 156. The method of Example 152, wherein the first radio node is a child node, and wherein the second radio node is a donor node.

[0340] Example 157. A wireless communication method performed by a first radio node, comprising: transmitting to a second radio node an RS resource configuration indicating one or more interference reference signal (RS) resources to be monitored, wherein one or more interference RSs for each of the one or more interference RS resources are associated with a plurality of transmit beams; receiving an interference report that indicates interference associated with at least one of the plurality of transmit beams for each of the one or more interference RSs of the one or more interference RS resources; and scheduling full-duplex communication involving the second radio node and one or more other radio nodes at least in part based on the interference report.

[0341] Example 158. The method of Example 157, wherein the interference report indicates one or more preferred beams associated with several interference RS resources of the one or more interference RS resources among the plurality of transmit beams by at least one of: one or more beam indices associated with one or more preferred beams for each of the several interference RS resources of the one or more interference RS resources; or one or more interference RS resource indices associated with each of several groups of interference RS resources corresponding to the one or more preferred beams among the one or more interference RS resources.

[0342] Example 159. The method of Example 158, wherein the interference report further indicates one or more preferred beams for several interference RS resources of the one or more interference RS resources by indicating the interference level associated with each of the one or more preferred beams among the one or more preferred beams for the several interference RS resources of the one or more interference RS resources among the plurality of transmit beams.

[0343] Example 160. The method as in Example 158 further includes: determining at least one of the following: the number of preferred beams for several interference RS resources among the one or more interference RS resources, or the number of several interference RS resources among the one or more interference RS resources, where the determination is based on at least one of the following: the RS resource configuration, or as predefined in the standard.

[0344] Example 161. The method as in Example 158, wherein at least one of the following is satisfied: the number of preferred beams for each of several interference RS resources among the one or more interference RS resources in the plurality of transmit beams is equal to or less than the number of associated multiple beams, or is only 1; or the number of several interference RS resources among the one or more interference RS resources is equal to or less than the number of the one or more interference RS resources, or is only 1.

[0345] Example 162. The method as in any one of Examples 158, 159, 160, 161 further includes: determining the one or more preferred beams based on reducing interference associated with one or more monitored interference RS resources, where the interference associated with one beam among the plurality of transmit beams is at least partially identified based on the interference RS associated with the beam.

[0346] Example 163. The method as in Example 157 further includes: transmitting another RS resource configuration to one of one or more other wireless nodes, the another RS resource configuration indicating one or more interference RS resources for transmitting one or more interference RSs for the one or more interference RS resources via the plurality of transmit beams.

[0347] Example 164. The method as in Example 157, wherein: the one or more interference RS resources include one or more full-duplex interference resources; the RS resource configuration further indicates one or more half-duplex interference RS resources; and the interference report further indicates another interference associated with each beam among the plurality of transmit beams for one or more interference RSs for each of the one or more half-duplex interference RS resources.

[0348] Example 165. The method as in Example 164 further includes: transmitting an indication of quasi-co-location (QCL) information to one of other wireless nodes after transmitting the one or more interference RSs, the QCL information indicating first spatial relation information to be used for transmission via the one or more full-duplex interference resources and second spatial relation information to be used for transmission via the one or more half-duplex interference resources; and receiving signaling from one of other wireless nodes according to the QCL information.

[0349] Example 166. The method of Example 165, wherein the indication of the QCL information is based on first spatial relation information regarding UE-specific physical uplink control channel (PUCCH) transmission and includes radio resource control (RRC), media access control-control element (MAC-CE), or downlink control information (DCI); or the indication of the QCL information is based on second spatial relation information regarding UE-specific physical uplink shared channel (PUSCH) transmission and includes RRC, MAC-CE, or DCI.

[0350] Example 167. The method of Example 165, wherein: the one or more interference RS resources are SRS resources, and the QCL information indicating the first spatial information and the second spatial information includes a corresponding one of the first SRS resource indicator and the second SRS resource indicator.

[0351] Example 168. The method of Example 157, wherein the RS resource configuration further indicates performing averaging of interference over multiple monitoring occasions, and the interference report indicates the average of the interference over the multiple monitoring occasions.

[0352] Example 169. The method of Example 157, wherein: the RS resource configuration further indicates one or more channel state information reference signal (CSI-RS) resources to be monitored, wherein each of the one or more CSI-RS resources is associated with at least one of the one or more interference RS resources; the method further includes transmitting at least one CSI-RS via each of the one or more CSI-RS resources; and the interference report indicates received signal parameters associated with at least one CSI-RS for each of the one or more CSI-RS resources.

[0353] Example 170. The method of Example 169, wherein the interference report indicates one or more CSI-RS indexes associated with one or more interference RS resources.

[0354] Example 171. The method of Example 169, wherein the one or more CSI-RS resources include at least one non-zero power CSI-RS resource.

[0355] Example 172. The method of Example 169, wherein multiple ones of the one or more interference RS resources include multiple interference RS resources associated with the same CSI-RS resource.

[0356] Example 173. The method of Example 169, wherein each of the one or more interference RS resources is associated with a different one of the one or more CSI-RS resources.

[0357] Example 174. The method of Example 169, wherein the one or more interfering RS resources include one or more other CSI-RS resources, and the one or more other CSI-RS resources are different from the one or more CSI-RS resources.

[0358] Example 175. The method of Example 169, wherein the interference report indicates a signal-to-noise-plus-interference ratio (SINR) associated with at least one of the one or more interfering RS resources, wherein: the interference parameter of the SINR corresponds to the interference associated with at least one of the one or more interfering RS resources; and the signal parameter of the SINR corresponds to the received signal parameter associated with the corresponding CSI-RS resource among the one or more CSI-RS resources.

[0359] Example 176. The method of Example 157, wherein the RS resource configuration further indicates monitoring the one or more interfering RS resources on a semi-persistent, periodic, aperiodic, or dynamic basis.

[0360] Example 177. The method of Example 157, wherein the first wireless node is a base station and the second wireless node is a user equipment (UE).

[0361] Example 178. The method of Example 157, wherein the first wireless node is a donor node and the second wireless node is a child node.

[0362] Example 179. A wireless communication method performed by a first wireless node, comprising: transmitting an RS resource configuration to a second wireless node indicating one or more groups of interfering reference signal (RS) resources to be monitored, wherein one or more interfering RSs for each of the one or more groups of interfering RS resources are associated with a plurality of transmit beams; receiving an interference report that indicates, for the one or more interfering RSs of each of the one or more groups of interfering RS resources, interference associated with at least one of the plurality of transmit beams; and scheduling full-duplex communication involving the second wireless node and one or more other wireless nodes at least in part based on the interference report.

[0363] Example 180. The method of Example 179, wherein the interference report indicates one or more preferred beams associated with several of the groups of interfering RS resources among the one or more groups of interfering RS resources by at least one of: one or more beam indices associated with one or more preferred beams for each of several of the groups of interfering RS resources among the one or more groups of interfering RS resources; or one or more interfering RS resource indices associated with each of several of the groups of interfering RS resources among the one or more groups of interfering RS resources that correspond to the one or more preferred beams.

[0364] Example 181. The method as in Example 180, wherein the interference report further indicates one or more preferred beams for several interference RS resource groups among the one or more interference RS resource groups by: indicating the interference level associated with each of the one or more preferred beams among the one or more preferred beams for several interference RS resource groups among the one or more interference RS resource groups in the plurality of transmit beams.

[0365] Example 182. The method as in Example 180, further comprising determining at least one of: the number of preferred beams for several interference RS resource groups among the one or more interference RS resource groups, or the number of several interference RS resource groups among the one or more interference RS resource groups, wherein the determination is based on at least one of: the RS resource configuration, or as predefined in a standard.

[0366] Example 183. The method as in Example 180, wherein at least one of the following is satisfied: the number of preferred beams for each of several interference RS resource groups among the one or more interference RS resource groups in the plurality of transmit beams is equal to or less than the number of associated multiple beams, or is only 1; or the number of several interference RS resource groups among the one or more interference RS resource groups is equal to or less than the number of the one or more interference RS resource groups, or is only 1.

[0367] Example 184. The method as in any one of Examples 180, 181, 182, 183, further comprising determining the one or more preferred beams based on reducing interference associated with one or more monitored interference RS resource groups, wherein the interference associated with one of the plurality of transmit beams is identified at least in part based on the interference RS associated with the beam.

[0368] Example 185. The method as in Example 179, further comprising transmitting to one of the one or more other wireless nodes another RS resource configuration, the another RS resource configuration indicating one or more interference RS resource groups for transmitting one or more interference RSs for the one or more interference RS resource groups via the plurality of transmit beams.

[0369] Example 186. The method as in any one of Example 184, wherein the one or more interference RS resource groups include one or more full-duplex interference resources; the RS resource configuration further indicates one or more half-duplex interference RS resources; and the interference report further indicates another interference associated with each of the one or more interference RSs for each of the one or more half-duplex interference RS resources in each of the plurality of transmit beams.

[0370] Example 187. The method as in Example 186 further includes: transmitting an indication of quasi co-location (QCL) information to one of the other wireless nodes after transmitting the one or more interference reference signals (RSs), the QCL information indicating first spatial relation information to be used for transmission via the one or more full-duplex interference resources and second spatial relation information to be used for transmission via the one or more half-duplex interference resources; and receiving signaling from one of the other wireless nodes according to the QCL information.

[0371] Example 188. The method as in Example 187, wherein the indication of the QCL information is based on first spatial relation information regarding user equipment (UE)-specific physical uplink control channel (PUCCH) transmission and includes radio resource control (RRC), medium access control-control element (MAC-CE), or downlink control information (DCI); or the indication of the QCL information is based on second spatial relation information regarding UE-specific physical uplink shared channel (PUSCH) transmission and includes RRC, MAC-CE, or DCI.

[0372] Example 189. The method as in Example 187, wherein: the one or more interference RS resource groups are sounding reference signal (SRS) resource groups, and the QCL information indicating the first and second spatial information includes a corresponding one of a first SRS resource indicator and a second SRS resource indicator.

[0373] Example 190. The method as in Example 179, wherein the RS resource configuration further indicates performing averaging of interference over a plurality of monitoring instances, and the interference report indicates the average of the interference over the plurality of monitoring instances.

[0374] Example 191. The method as in Example 179, wherein: the RS resource configuration further indicates one or more channel state information reference signal (CSI-RS) resources to be monitored, each of the one or more CSI-RS resources being associated with at least one of the one or more interference RS resource groups; the method further includes transmitting at least one CSI-RS via each of the one or more CSI-RS resources; and the interference report indicates received signal parameters associated with the at least one CSI-RS for each of the one or more CSI-RS resources.

[0375] Example 192. The method as in Example 191, wherein the interference report indicates one or more CSI-RS indices associated with one or more interference RS resource groups.

[0376] Example 193. The method as in Example 191, wherein the one or more CSI-RS resources include at least one non-zero power CSI-RS resource.

[0377] Example 194. The method of Example 191, wherein the one or more interference RS resource sets include multiple interference RS resource sets associated with the same CSI-RS resource.

[0378] Example 195. The method of Example 191, wherein each of the one or more interference RS resource sets is associated with a different resource among the one or more CSI-RS resources.

[0379] Example 196. The method of Example 191, wherein the one or more interference RS resource sets include one or more other CSI-RS resource sets, and the one or more other CSI-RS resource sets are different from the one or more CSI-RS resources.

[0380] Example 197. The method of Example 191, wherein the interference report indicates a signal-to-noise plus interference ratio (SINR) associated with at least one of the one or more interference RS resource sets, wherein: the interference parameter of the SINR corresponds to the interference associated with at least one of the one or more interference RS resource sets; and the signal parameter of the SINR corresponds to the received signal parameter associated with the corresponding CSI-RS resource among the one or more CSI-RS resources.

[0381] Example 198. The method of Example 179, wherein the RS resource configuration further indicates monitoring the one or more interference RS resource sets on a semi-persistent, periodic, aperiodic, or dynamic basis.

[0382] Example 199. The method of Example 179, wherein the first wireless node is a base station and the second wireless node is a user equipment (UE).

[0383] Example 200. The method of Example 179, wherein the first wireless node is a donor node and the second wireless node is a child node.

[0384] Example 201. An apparatus for wireless communication by a first wireless node, comprising: a receiver configured to receive a reference signal (RS) resource configuration from a second wireless node, the RS resource configuration indicating one or more interference RS resources; a processing system configured to: monitor one or more interference RSs for each of the one or more interference RS resources, wherein the one or more interference RSs for each of the one or more interference RS resources are associated with multiple transmit beams; measure interference associated with at least one of the multiple beams for each of the one or more interference RS resources; and generate an interference report based on the measurement; and a transmitter configured to transmit the interference report to the second wireless node.

[0385] Example 202. An apparatus for wireless communication by a first wireless node, comprising: a receiver configured to receive a reference signal (RS) resource configuration from a second wireless node, the RS resource configuration indicating one or more interfering RS resource groups; a processing system configured to: monitor one or more interfering RSs for each of the one or more interfering RS resource groups, wherein the one or more interfering RSs for each of the one or more interfering RS resource groups are associated with a plurality of transmit beams; measure interference associated with at least one of the plurality of beams for the one or more interfering RSs for each of the one or more interfering RS resource groups; and generate an interference report based on the measurement; and a transmitter configured to transmit the interference report to the second wireless node.

[0386] Example 203. An apparatus for wireless communication by a first wireless node, comprising: a receiver configured to receive a reference signal (RS) resource configuration from a second wireless node, the RS resource configuration indicating one or more interfering RS resources; a processing system configured to: monitor one or more interfering RSs via the one or more interfering RS resources; for each of the one or more interfering RS resources, determine a receive beam based on the one or more interfering RSs of the one or more interfering RS resources, wherein the receive beam is one of a plurality of receive beams used to receive the one or more interfering RSs, and the receive beam has the lowest receive power among the plurality of receive beams; and select a transmit beam corresponding to the receive beam; and a transmitter configured to transmit signaling to the second wireless node via the transmit beam.

[0387] Example 204. An apparatus for wireless communication by a first wireless node, comprising: a receiver configured to receive a reference signal (RS) resource configuration from a second wireless node, the RS resource configuration indicating one or more full-duplex interfering RS resources and one or more half-duplex interfering RS resources; a transmitter configured to transmit one or more interfering RSs for each of the one or more full-duplex interfering RS resources and the one or more half-duplex interfering resources, wherein: the receiver is further configured to receive an indication of quasi-co-location (QCL) information from the second wireless node after transmitting the one or more interfering RSs, the QCL information indicating first spatial relationship information to be used for transmission via the one or more full-duplex interfering resources and second spatial relationship information to be used for transmission via the one or more half-duplex interfering resources; and the transmitter is further configured to transmit signaling to the second wireless node according to the QCL information.

[0388] Example 205. An apparatus for wireless communication by a first wireless node, comprising: a transmitter configured to transmit to a second wireless node an RS resource configuration indicating one or more interference reference signal (RS) resources to be monitored, wherein one or more interference RSs for each of the one or more interference RS resources are associated with a plurality of transmit beams; a receiver configured to receive an interference report indicating interference associated with at least one of the plurality of transmit beams for each of the one or more interference RSs of the one or more interference RS resources; and a processing system configured to: schedule full-duplex communication involving the second wireless node and one or more other wireless nodes at least in part based on the interference report.

[0389] Example 206. An apparatus for wireless communication by a first wireless node, comprising: a transmitter configured to transmit to a second wireless node an RS resource configuration indicating a group of one or more interference reference signal (RS) resources to be monitored, wherein one or more interference RSs for each of the group of one or more interference RS resources are associated with a plurality of transmit beams; a receiver configured to: receive an interference report indicating interference associated with at least one of the plurality of transmit beams for each of the one or more interference RSs of the group of one or more interference RS resources; and a processing system configured to: schedule full-duplex communication involving the second wireless node and one or more other wireless nodes at least in part based on the interference report.

[0390] Example 207. An apparatus for wireless communication by a first wireless node, comprising: means for receiving from a second wireless node an RS resource configuration indicating one or more interference reference signal (RS) resources; means for monitoring one or more interference RSs for each of the one or more interference RS resources, wherein the one or more interference RSs for each of the one or more interference RS resources are associated with a plurality of transmit beams; means for measuring interference associated with at least one of the plurality of beams for each of the one or more interference RSs of the one or more interference RS resources; means for generating an interference report based on the measurement; and means for transmitting the interference report to the second wireless node.

[0391] Example 208. An apparatus for wireless communication by a first wireless node, comprising: means for receiving from a second wireless node an RS resource configuration indicating one or more interference reference signal (RS) resource sets; means for monitoring one or more interference RSs for each of the one or more interference RS resource sets, wherein the one or more interference RSs for each of the one or more interference RS resource sets are associated with a plurality of transmit beams; means for measuring interference associated with at least one of the plurality of beams for the one or more interference RSs for each of the one or more interference RS resource sets; means for generating an interference report based on the measurement; and means for transmitting the interference report to the second wireless node.

[0392] Example 209. An apparatus for wireless communication by a first wireless node, comprising: means for receiving from a second wireless node an RS resource configuration indicating one or more interference reference signal (RS) resources; means for monitoring one or more interference RSs via the one or more interference RS resources; means for determining, for each of the one or more interference RS resources, a receive beam based on the one or more interference RSs of the one or more interference RS resources, wherein the receive beam is one of a plurality of receive beams used to receive the one or more interference RSs and has the lowest received power among the plurality of receive beams; means for selecting a transmit beam corresponding to the receive beam; and means for transmitting signaling to the second wireless node via the transmit beam.

[0393] Example 210. An apparatus for wireless communication by a first wireless node, comprising: means for receiving from a second wireless node an RS resource configuration indicating one or more full-duplex interference RS resources and one or more half-duplex interference RS resources; means for transmitting one or more interference RSs for each of the one or more full-duplex interference RS resources and the one or more half-duplex interference resources; means for receiving, after transmitting the one or more interference RSs, an indication of quasi-co-location (QCL) information from the second wireless node, the QCL information indicating first spatial relation information to be used for transmission via the one or more full-duplex interference resources and second spatial relation information to be used for transmission via the one or more half-duplex interference resources; and means for transmitting signaling to the second wireless node according to the QCL information.

[0394] Example 211. An apparatus for wireless communication by a first wireless node, comprising: means for transmitting, to a second wireless node, an RS resource configuration indicating one or more interference reference signal (RS) resources to be monitored, wherein one or more interference RSs for each of the one or more interference RS resources are associated with a plurality of transmission beams; means for receiving an interference report that indicates interference associated with at least one of the plurality of transmission beams for each of the one or more interference RSs of each of the one or more interference RS resources; and means for scheduling full-duplex communication involving the second wireless node and one or more other wireless nodes, at least in part based on the interference report.

[0395] Example 212. An apparatus for wireless communication by a first wireless node, comprising: means for transmitting, to a second wireless node, an RS resource configuration indicating one or more groups of interference reference signal (RS) resources to be monitored, wherein one or more interference RSs for each of the one or more groups of interference RS resources are associated with a plurality of transmission beams; means for receiving an interference report that indicates interference associated with at least one of the plurality of transmission beams for each of the one or more interference RSs of each of the one or more groups of interference RS resources; and means for scheduling full-duplex communication involving the second wireless node and one or more other wireless nodes, at least in part based on the interference report.

[0396] Example 213. A computer-readable medium having instructions stored thereon that cause a first node to: receive, from a second wireless node, an RS resource configuration indicating one or more interference reference signal (RS) resources; monitor one or more interference RSs for each of the one or more interference RS resources, wherein the one or more interference RSs for each of the one or more interference RS resources are associated with a plurality of transmission beams; measure interference associated with at least one of the plurality of beams for each of the one or more interference RSs of each of the one or more interference RS resources; generate an interference report based on the measurement; and transmit the interference report to the second wireless node.

[0397] Example 214. A computer-readable medium storing instructions that cause a first node to: receive from a second wireless node an RS resource configuration indicating one or more interference reference signal (RS) resource sets; monitor one or more interference RSs for each of the one or more interference RS resource sets, wherein the one or more interference RSs for each of the one or more interference RS resource sets are associated with a plurality of transmit beams; measure interference associated with at least one of the plurality of beams for the one or more interference RSs for each of the one or more interference RS resource sets; generate an interference report based on the measurement; and transmit the interference report to the second wireless node.

[0398] Example 215. A computer-readable medium storing instructions that cause a first node to: receive from a second wireless node an RS resource configuration indicating one or more interference reference signal (RS) resources; monitor one or more interference RSs via the one or more interference RS resources; for each of the one or more interference RS resources, determine a receive beam based on the one or more interference RSs of the one or more interference RS resources, wherein the receive beam is one of a plurality of receive beams used to receive the one or more interference RSs and has the lowest receive power among the plurality of receive beams; select a transmit beam corresponding to the receive beam; and transmit signaling to the second wireless node via the transmit beam.

[0399] Example 216. A computer-readable medium storing instructions that cause a first node to: receive from a second wireless node a reference signal (RS) resource configuration indicating one or more full-duplex interference RS resources and one or more half-duplex interference RS resources; transmit one or more interference RSs for each of the one or more full-duplex interference RS resources and the one or more half-duplex interference resources; receive an indication of quasi-co-location (QCL) information from the second wireless node after transmitting the one or more interference RSs, the QCL information indicating first spatial relation information to be used for transmission via the one or more full-duplex interference resources and second spatial relation information to be used for transmission via the one or more half-duplex interference resources; and transmit signaling to the second wireless node according to the QCL information.

[0400] Example 217. A computer-readable medium having instructions stored thereon that cause a first node to: transmit to a second wireless node an RS resource configuration indicating one or more interference reference signal (RS) resources to be monitored, wherein one or more interference RSs for each of the one or more interference RS resources are associated with a plurality of transmit beams; receive an interference report that indicates interference associated with at least one of the plurality of transmit beams for the one or more interference RSs for each of the one or more interference RS resources; and schedule full-duplex communication involving the second wireless node and one or more other wireless nodes at least in part based on the interference report.

[0401] Example 218. A computer-readable medium having instructions stored thereon that cause a first node to: transmit to a second wireless node an RS resource configuration indicating one or more groups of interference reference signal (RS) resources to be monitored, wherein one or more interference RSs for each of the one or more groups of interference RS resources are associated with a plurality of transmit beams; receive an interference report that indicates interference associated with at least one of the plurality of transmit beams for the one or more interference RSs for each of the one or more groups of interference RS resources; and schedule full-duplex communication involving the second wireless node and one or more other wireless nodes at least in part based on the interference report.

[0402] The following description provides examples and is not intended to limit the scope, applicability, or examples set forth in the claims. Changes may be made to the functionality and arrangement of the elements discussed without departing from the scope of the disclosure. Various examples may appropriately omit, substitute, or add various procedures or components. For example, the methods described may be performed in a different order than described, and various steps may be added, omitted, or combined. Also, features described with reference to some examples may be combined in some other examples. For instance, any number of aspects set forth herein may be used to implement an apparatus or practice a method. Additionally, the scope of the disclosure is intended to cover such apparatus or methods practiced using other structures, functionality, or a combination of structures and functionality that supplement or are additional to the various aspects of the disclosure set forth herein. It should be understood that any aspect of the disclosure disclosed herein may be implemented by one or more elements of the claims. The term "exemplary" is used herein to mean "serving as an example, instance, or illustration." Any aspect described herein as "exemplary" should not necessarily be construed as superior or better than other aspects.

[0403] The techniques described herein can be used in a variety of wireless communication technologies such as 3GPP Long Term Evolution (LTE), LTE-Advanced (LTE-A), Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), Frequency Division Multiple Access (FDMA), Orthogonal Frequency Division Multiple Access (OFDMA), Single-Carrier Frequency Division Multiple Access (SC-FDMA), Time Division Synchronous Code Division Multiple Access (TD-SCDMA), and other networks. The terms “network” and “system” are often used interchangeably.

[0404] CDMA networks may implement radio technologies such as Universal Terrestrial Radio Access (UTRA), cdma2000, etc. UTRA includes Wideband CDMA (WCDMA) and other variants of CDMA. cdma2000 covers the IS-2000, IS-95, and IS-856 standards. TDMA networks may implement radio technologies such as Global System for Mobile Communications (GSM). OFDMA networks may implement radio technologies such as NR (e.g., 5G RA), Evolved UTRA (E-UTRA), Ultra Mobile Broadband (UMB), IEEE 802.11 (Wi-Fi), IEEE 802.16 (WiMAX), IEEE 802.20, Flash-OFDMA, etc. UTRA and E-UTRA are part of Universal Mobile Telecommunications System (UMTS). LTE and LTE-A are UMTS versions that use E-UTRA. UTRA, E-UTRA, UMTS, LTE, LTE-A, and GSM are described in documents from an organization named “3rd Generation Partnership Project” (3GPP). cdma2000 and UMB are described in documents from an organization named “3rd Generation Partnership Project 2” (3GPP2).

[0405] The techniques described herein can be used in the wireless networks and radio technologies mentioned above and other wireless networks and radio technologies. For clarity, while aspects may be described herein using terms typically associated with 3G and / or 4G wireless technologies, aspects of the present disclosure can be applied in communication systems based on other generations, including NR technology (such as 5G and later generations).

[0406] A BS can be a station that communicates with a User Equipment (UE). Each BS can provide communication coverage for a specific geographical area. In 3GPP, the term "cell" can refer to the coverage area of a Node B (NB) and / or the NB subsystem serving that coverage area, depending on the context in which the term is used. In an NR system, the terms "cell" and BS, Next Generation Node B (gNB or g B node), Access Point (AP), Distributed Unit (DU), carrier, or Transmission and Reception Point (TRP) can be used interchangeably. In some examples, a cell may not have to be stationary, and the geographical area of a cell can move according to the location of a mobile BS. In some examples, BSs can be interconnected with each other and / or interconnected to one or more other BSs or network nodes in a wireless communication network through various types of backhaul interfaces such as direct physical connections, wireless connections, virtual networks, or analogs using any suitable transport network.

[0407] A BS can provide communication coverage for macro cells, pico cells, femto cells, and / or other types of cells. A macro cell can cover a relatively large geographical area (e.g., with a radius of several kilometers) and can allow unconstrained access by UEs with a service subscription. A pico cell can cover a relatively small geographical area and can allow unconstrained access by UEs with a service subscription. A femto cell can cover a relatively small geographical area (e.g., a residence) and can allow constrained access by UEs associated with that femto cell (e.g., UEs in a Closed Subscriber Group (CSG), UEs of users in a residence, etc.). A BS for a macro cell can be referred to as a macro BS. A BS for a pico cell can be referred to as a pico BS. A BS for a femto cell can be referred to as a femto BS or a home BS.

[0408] A relay station is a station that receives a transmission of data and / or other information from an upstream station (e.g., a BS or a UE) and sends the transmission of the data and / or other information to a downstream station (e.g., a UE or a BS). A relay station can also be a UE that relays transmissions for other UEs.

[0409] Generally, any number of wireless networks can be deployed in a given geographical area. Each wireless network can support a specific Radio Access Technology (RAT) and can operate on one or more frequencies. A RAT can also be referred to as a radio technology, an air interface, etc. A frequency can also be referred to as a carrier, a sub - carrier, a frequency channel, a tone, a sub - band, etc. Each frequency can support a single RAT in a given geographical area to avoid interference between wireless networks of different RATs. In some cases, an NR or 5G RAT network can be deployed.

[0410] A wireless communication network can be a heterogeneous network that includes different types of BSs (e.g., macro BSs, pico BSs, femto BSs, relays, etc.). These different types of BSs can have different transmit power levels, different coverage areas, and different impacts on interference in the wireless communication network. For example, a macro BS can have a high transmit power level (e.g., 20 watts), while pico BSs, femto BSs, and relays can have lower transmit power levels (e.g., 1 watt).

[0411] The wireless communication network can support synchronous or asynchronous operation. For synchronous operation, each BS can have a similar frame timing, and transmissions from different BSs can be approximately aligned in time. For asynchronous operation, each BS can have a different frame timing, and transmissions from different BSs may not be aligned in time. The techniques described herein can be used for both synchronous and asynchronous operations.

[0412] A UE can also be referred to as a mobile station, terminal, access terminal, subscriber unit, station, customer premise equipment (CPE), cellular phone, smart phone, personal digital assistant (PDA), wireless modem, wireless communication device, handheld device, laptop computer, cordless phone, wireless local loop (WLL) station, tablet computer, camera, gaming device, netbook, smartbook, ultrabook, appliance, medical device or equipment, biometric sensor / device, wearable device (such as a smart watch, smart clothing, smart glasses, smart wristband, smart jewelry (e.g., smart ring, smart bracelet, etc.)), entertainment device (e.g., music device, video device, satellite radio, etc.), vehicle component or sensor, smart meter / sensor, industrial manufacturing equipment, global positioning system device, or any other suitable device configured to communicate via a wireless or wired medium. Some UEs can be considered machine type communication (MTC) devices or evolved MTC (eMTC) devices. MTC and eMTC UEs include, for example, robots, drones, remote devices, sensors, meters, monitors, location tags, etc., which can communicate with a BS, another device (e.g., a remote device), or some other entity. A wireless node can provide connectivity to a network (e.g., a wide area network such as the Internet or a cellular network) or provide connectivity to the network, for example, via a wired or wireless communication link. Some UEs can be considered Internet of Things (IoT) devices, which can be narrowband IoT (NB-IoT) devices.

[0413] Some wireless networks (e.g., LTE) utilize Orthogonal Frequency Division Multiplexing (OFDM) on the downlink and Single-Carrier Frequency Division Multiplexing (SC-FDM) on the uplink. OFDM and SC-FDM divide the system bandwidth into multiple (K) orthogonal subcarriers, which are also often referred to as frequency tones, frequency bins, etc. Each subcarrier can be modulated with data. Generally, modulation symbols are sent in the frequency domain for OFDM and in the time domain for SC-FDM. The spacing between adjacent subcarriers can be fixed, and the total number of subcarriers (K) can depend on the system bandwidth. For example, the subcarrier spacing can be 15 kHz, and the minimum resource allocation (referred to as a "resource block" (RB)) can be 12 subcarriers (or 180 kHz). Thus, for system bandwidths of 1.25, 2.5, 5, 10, or 20 megahertz (MHz), the nominal Fast Fourier Transform (FFT) size can be equal to 128, 256, 512, 1024, or 2048, respectively. The system bandwidth can also be divided into subbands. For example, a subband can cover 1.08 MHz (e.g., 6 RBs), and for system bandwidths of 1.25, 2.5, 5, 10, or 20 MHz, there can be 1, 2, 4, 8, or 16 subbands, respectively. In LTE, the basic transmission time interval (TTI) or packet duration is a 1 ms subframe. In NR, a subframe is still 1 ms, but the basic TTI is referred to as a slot. A subframe contains a variable number of slots (e.g., 1, 2, 4, 8, 16... slots), which depends on the subcarrier spacing. An NR RB is 12 consecutive frequency subcarriers. NR can support a base subcarrier spacing of 15 kHz, and other subcarrier spacings can be defined relative to the base subcarrier spacing, e.g., 30 kHz, 60 kHz, 120 kHz, 240 kHz, etc. Symbol and slot lengths scale with the subcarrier spacing. The CP length also depends on the subcarrier spacing.

[0414] NR can utilize OFDM with CP on both the uplink and downlink and includes support for half-duplex operation using TDD. Beamforming can be supported and the beam direction can be configured dynamically. MIMO transmission with precoding can also be supported. In some examples, the MIMO configuration in the DL can support up to 8 transmit antennas (multi-layer DL transmission with up to 8 streams) and up to 2 streams per UE. In some examples, multi-layer transmission with up to 2 streams per UE can be supported. Up to 8 serving cells can be used to support the aggregation of multiple cells.

[0415] In some examples, access to an air interface can be scheduled. A scheduling entity (e.g., a BS) allocates resources for communication among some or all of the devices and equipment within its service area or cell. The scheduling entity may be responsible for scheduling, assigning, reconfiguring, and releasing resources for one or more subordinate entities. That is, for the scheduled communication, the subordinate entities utilize the resources allocated by the scheduling entity. A base station is not the only entity that can be used as a scheduling entity. In some examples, a UE can be used as a scheduling entity and can schedule resources for one or more subordinate entities (e.g., one or more other UEs), and the other UEs can use the resources scheduled by the UE for wireless communication. In some examples, a UE can act as a scheduling entity in a peer-to-peer (P2P) network and / or in a mesh network. In a mesh network example, UEs can communicate directly with each other in addition to communicating with a scheduling entity.

[0416] In some examples, two or more subordinate entities (e.g., UEs) can communicate with each other using sidelink signals. Real-world applications of such sidelink communication can include public safety, proximity services, UE-to-network relay, vehicle-to-vehicle (V2V) communication, Internet of Everything (IoE) communication, IoT communication, mission-critical mesh, and / or various other suitable applications. Generally, a sidelink signal can refer to a signal that is conveyed from one subordinate entity (e.g., UE1) to another subordinate entity (e.g., UE2) without relaying the communication through a scheduling entity (e.g., a UE or a BS), even though a scheduling entity can be used for scheduling and / or control purposes. In some examples, sidelink signals can be conveyed using licensed spectrum (different from wireless local area networks, which typically use unlicensed spectrum).

[0417] The various methods disclosed herein include one or more steps or acts for implementing the methods. These method steps and / or acts can be interchanged with one another without departing from the scope of the claims. In other words, unless a specific order of the steps or acts is specified, the order and / or use of the specific steps and / or acts can be altered without departing from the scope of the claims.

[0418] As used herein, a phrase that recites "at least one of" a list of items refers to any combination of those items, including a single member. As an example, "at least one of a, b, or c" is intended to cover: a, b, c, a-b, a-c, b-c, and a-b-c, as well as any combination with multiple identical elements (e.g., a-a, a-a-a, a-a-b, a-a-c, a-b-b, a-c-c, b-b, b-b-b, b-b-c, c-c, and c-c-c, or any other ordering of a, b, and c).

[0419] As used herein, the term "determine" encompasses a variety of actions. For example, "determine" can include computing, calculating, processing, deriving, researching, looking up (e.g., looking up in a table, database, or other data structure), ascertaining, and the like. Moreover, "determine" can include receiving (e.g., receiving information), accessing (e.g., accessing data in a memory), and the like. Also, "determine" can include parsing, selecting, choosing, establishing, and the like.

[0420] The foregoing description is provided to enable any person skilled in the art to practice the various aspects described herein. Various modifications to these aspects will be readily apparent to those skilled in the art, and the generic principles defined herein can be applied to other aspects. Thus, the claims are not intended to be limited to the aspects shown herein, but are to be accorded the full scope consistent with the language of the claims, wherein the recitation of a singular element is not intended to mean "one and only one" (unless specifically so stated) but "one or more." Unless specifically stated otherwise, the term "some / a" refers to one or more. Elements of the various aspects described throughout this disclosure that are presently known or later come to be known to those of ordinary skill in the art as all structural and functional equivalents thereof are expressly incorporated herein by reference and are intended to be covered by the claims. Moreover, nothing disclosed herein is intended to be dedicated to the public, whether or not such disclosure is expressly recited in the claims. No element of a claim should be construed under the provisions of 35 U.S.C. § 112(f) unless the element is expressly recited using the phrase "means for" or, in the case of a method claim, the element is recited using the phrase "step for."

[0421] The various operations of the methods described above can be performed by any suitable means capable of performing the corresponding functions. These means can include various hardware and / or software components and / or modules, including but not limited to circuits, application specific integrated circuits (ASICs), or processors. Generally, where there are operations illustrated in the figures, these operations may have corresponding paired means-plus-function components with similar numbers.

[0422] The various illustrative logical blocks, modules, and circuits described in connection with the present disclosure may be implemented or performed with a general purpose processor, a digital signal processor (DSP), an application specific integrated circuit (ASIC), a field programmable gate array (FPGA) or other programmable logic device (PLD), discrete gate or transistor logic, discrete hardware components, or any combination thereof designed to perform the functions described herein. A general purpose processor may be a microprocessor, but in the alternative, the processor may be any commercially available processor, controller, microcontroller, or state machine. The processor may also be implemented as a combination of computing devices, e.g., a combination of a DSP and a microprocessor, a plurality of microprocessors, one or more microprocessors in conjunction with a DSP core, or any other such configuration.

[0423] If implemented in hardware, an example hardware configuration may include a processing system in a wireless node. The processing system may be implemented with a bus architecture. Depending on the particular application and overall design constraints of the processing system, the bus may include any number of interconnecting buses and bridges. The bus may link together various circuits including a processor, machine-readable media, and a bus interface. The bus interface may be used to connect a network adapter etc. to the processing system via the bus. The network adapter may be used to implement the signal processing functions of the PHY layer. In the case of user equipment 120 (see Figure 1 ), a user interface (e.g., keypad, display, mouse, joystick, etc.) may also be connected to the bus. The bus may also link various other circuits such as a timing source, peripherals, voltage regulators, power management circuits, and similar circuits, which are well known in the art and will not be described further herein. The processor may be implemented with one or more general and / or dedicated processors. Examples include microprocessors, microcontrollers, DSP processors, and other circuitry capable of executing software. Depending on the particular application and overall design constraints imposed on the overall system, those of ordinary skill in the art will recognize how best to implement the functionality described with respect to the processing system.

[0424] If implemented in software, each function can be stored on or transmitted via a computer-readable medium as one or more instructions or code. Software should be broadly construed to mean instructions, data, or any combination thereof, whether referred to as software, firmware, middleware, microcode, hardware description language, or otherwise. Computer-readable media includes both computer storage media and communication media, which includes any medium that facilitates the transfer of a computer program from one place to another. The processor may be responsible for managing the bus and general processing, including executing software modules stored on a machine-readable storage medium. The computer-readable storage medium may be coupled to the processor such that the processor can read from / write to the storage medium. In an alternative, the storage medium may be integrated into the processor. As an example, the machine-readable medium may include transmission lines, carrier waves modulated with data, and / or a computer-readable storage medium with instructions stored thereon separate from a wireless node, all of which may be accessed by the processor via a bus interface. Alternatively or additionally, the machine-readable medium or any part thereof may be integrated into the processor, such as may be the case with a cache and / or a general register file. As an example, examples of the machine-readable medium may include RAM (Random Access Memory), flash memory, ROM (Read Only Memory), PROM (Programmable Read Only Memory), EPROM (Erasable Programmable Read Only Memory), EEPROM (Electrically Erasable Programmable Read Only Memory), registers, magnetic disks, optical disks, hard drives, or any other suitable storage medium, or any combination thereof. The machine-readable medium may be implemented in a computer program product.

[0425] Software modules may include a single instruction, or many instructions, and may be distributed over several different code segments, distributed among different programs, and across multiple storage media. The computer-readable medium may include several software modules. These software modules include instructions that, when executed by an apparatus such as a processor, cause the processing system to perform various functions. These software modules may include a transmission module and a reception module. Each software module may reside in a single storage device or be distributed across multiple storage devices. As an example, when a trigger event occurs, the software module may be loaded from a hard drive into RAM. During the execution of the software module, the processor may load some instructions into the cache to improve access speed. One or more cache lines may then be loaded into the general register file for execution by the processor. When referring to the functionality of a software module hereinafter, it will be understood that such functionality is implemented by the processor when the processor executes instructions from the software module.

[0426] Any connection is also properly termed a computer-readable medium. For example, if the software is delivered from a web site, server, or other remote source using a coaxial cable, fiber optic cable, twisted pair, digital subscriber line (DSL), or wireless technology such as infrared (IR), radio, and microwave, then the coaxial cable, fiber optic cable, twisted pair, DSL, or wireless technology such as infrared, radio, and microwave is included in the definition of the medium. As used herein, disk and disc include compact disc (CD), laser disc, optical disc, digital versatile disc (DVD), floppy disk, and disc, where disk typically magnetically reproduces data, while disc optically reproduces data with a laser. Thus, in some aspects, computer-readable media may include non-transitory computer-readable media (e.g., tangible media). Additionally, for other aspects, computer-readable media may include transitory computer-readable media (e.g., signals). Combinations of the above should also be included within the scope of computer-readable media.

[0427] Accordingly, some aspects may include a computer program product for performing the operations given herein. For example, such a computer program product may include a computer-readable medium having instructions stored (and / or encoded) thereon that can be executed by one or more processors to perform the operations described herein, such as instructions for performing the operations described and illustrated in Figures 7 - 11 Sections 13-15 and 17-21.

[0428] Furthermore, it should be appreciated that modules and / or other suitable means for performing the methods and techniques described herein can be downloaded and / or otherwise obtained by a user terminal and / or a base station, where applicable. For example, such devices can be coupled to a server to facilitate the transfer of means for performing the methods described herein. Alternatively, the various methods described herein can be provided via a storage device (e.g., RAM, ROM, a physical storage medium such as a compact disc (CD) or floppy disk, etc.) such that once the storage device is coupled to or provided to the user terminal and / or base station, the device can obtain the various methods. Additionally, any other suitable technology can be utilized that is adapted to provide the methods and techniques described herein to a device.

[0429] It will be understood that the claims are not limited to the exact configurations and components set forth above. Various modifications, substitutions, and alterations can be made in the layout, operation, and details of the methods and apparatuses described above without departing from the scope of the claims.

Claims

1. A device for wireless communication, comprising: a receiver, the receiver being configured to: receive a reference signal resource configuration from a wireless node, the reference signal resource configuration indicating one or more first interference reference signal (RS) resources associated with interference reference signal transmission or one or more interference RS resource groups associated with the interference reference signal transmission, wherein each interference RS resource group in the interference RS resource groups includes one or more second interference RS resources, and receive control signaling from the wireless node indicating quasi co-location (QCL) information, wherein the QCL information indicates: suppressing the use of any monitored interference RS resources in the reference signal resource configuration when determining spatial reception parameters, or identifying at least one monitored interference RS resource in the reference signal resource configuration to be used when determining the spatial reception parameters; and a processing system, the processing system being configured to: monitor one or more interference RSs via the one or more first interference RS resources or the one or more second interference RS resources, for each first interference RS resource in the one or more first interference RS resources or each interference RS resource group in the interference RS resource groups, determine at least one receive beam based at least in part on each of the one or more monitored interference RSs corresponding to at least one interference RS resource in the one or more first interference RS resources or the one or more second interference RS resources, and determine the spatial reception parameters according to the control signaling.

2. The device according to claim 1, wherein: the processing system is configured to determine the at least one receive beam based on reducing interference associated with one or more monitored first interference RS resources or one or more monitored interference RS resource groups.

3. The device according to claim 1, wherein: the processing system is configured to generate a beam interference report including the interference level of the at least one receive beam based at least in part on one or more monitored first interference RS resources or one or more monitored interference RS resource groups; and the device further includes a transmitter, the transmitter being configured to transmit the beam interference report to the wireless node.

4. The device according to any one of the preceding claims, wherein: the reference signal resource configuration further indicates the number of interference RS repetitions over time associated with each first interference RS resource in the one or more first interference RS resources or each interference RS resource group in the one or more interference RS resource groups; and all interference RS repetitions associated with one of the one or more interference RS resources correspond to the same transmit beam.

5. The device according to claim 3, wherein: The reference signal resource configuration further indicates one or more CSI-RS resources associated with channel state information reference signal (CSI-RS) transmissions from the radio node, wherein each of the one or more CSI-RS resources is associated with at least one of the one or more first interference RS resources or at least one interference RS resource group of the one or more interference RS resource groups, and wherein the one or more CSI-RS resources include at least one non-zero power CSI-RS resource; The processing system is configured to: monitor one or more CSI-RSs from the radio node via the one or more CSI-RS resources, and generate the beam interference report at least in part based on the monitored one or more CSI-RSs.

6. The apparatus according to claim 3, wherein the beam interference report indicates one or more interference levels associated with at least one of: the monitored one or more first interference RS resources, the monitored one or more interference RS resource groups, or the one or more CSI-RS resources.

7. The apparatus according to claim 1, wherein the one or more first interference RS resources are sounding reference signal (SRS) resources or CSI-RS resources different from the one or more CSI-RS resources transmitted by the radio node, or wherein the one or more interference RS resource groups include SRS resources or CSI-RS resources different from the one or more CSI-RS resources transmitted by the radio node.

8. The apparatus according to claim 1, wherein: the control signaling further indicates at least one interference RS resource for the QCL information; and the processing system is configured to identify at least one interference RS resource according to an indication of a transmission configuration indicator (TCI) state having the QCL information included in the control signaling.

9. The apparatus according to claim 1, wherein: the control signaling suppresses an indication of any monitored interference RS resource for the QCL information; and the processing system is configured to identify that an indication of a TCI state having the QCL information suppresses an indication of any monitored interference RS for the QCL information in the control signaling, wherein the processing system is configured to: explicitly identify from the monitored interference RS resource identifier included in the control signaling; or implicitly identify using the monitored CSI-RS transmitted by the radio node, the monitored CSI-RS being associated with one of the monitored one or more first interference RS resources or one of the monitored one or more interference RS resource groups.

10. The apparatus according to claim 1, wherein the apparatus is a user equipment or a sub-node, and the radio node is a base station or a donor node.

11. An apparatus for wireless communication, comprising: A receiver configured to receive a reference signal (RS) resource configuration from a wireless node, the RS resource configuration indicating one or more interfering RS resources or one or more groups of interfering RS resources; A processing system configured to: Monitor one or more interfering RSs for each interfering RS resource among the one or more interfering RS resources or for each group of interfering RS resources among the one or more groups of interfering RS resources, wherein the one or more interfering RSs for each interfering RS resource among the one or more interfering RS resources or for each group of interfering RS resources among the one or more groups of interfering RS resources are associated with a plurality of transmission beams, Measure interference associated with at least one of the plurality of transmission beams for the one or more interfering RSs for each interfering RS resource among the one or more interfering RS resources or for each group of interfering RS resources among the one or more groups of interfering RS resources, and Generate an interference report based on the measurement; And A transmitter configured to transmit the interference report to the wireless node.

12. The apparatus according to claim 11, wherein the interference report indicates, by at least one of the following, one or more preferred beams among the plurality of transmission beams, the one or more preferred beams being associated with several interfering RS resources among the one or more interfering RS resources or several groups of interfering RS resources among the one or more groups of interfering RS resources: One or more beam indices associated with the one or more preferred beams for each interfering RS resource among the several interfering RS resources among the one or more interfering RS resources or for each group of interfering RS resources among the several groups of interfering RS resources among the one or more groups of interfering RS resources; or One or more interfering RS resource indices associated with each interfering RS resource among the several interfering RS resources among the one or more interfering RS resources that correspond to the one or more preferred beams or with each group of interfering RS resources among the several groups of interfering RS resources among the one or more groups of interfering RS resources that correspond to the one or more preferred beams.

13. The apparatus according to claim 12, wherein the processing system is configured to determine at least one of the following: the number of preferred beams for the several interfering RS resources among the one or more interfering RS resources or for the several groups of interfering RS resources among the one or more groups of interfering RS resources, or the number of the several interfering RS resources among the one or more interfering RS resources or the number of the several groups of interfering RS resources among the one or more groups of interfering RS resources, wherein the determination is based on at least one of the following: the RS resource configuration, or predefined in a standard or determined by a user equipment (UE) without further configuration or predefined.

14. The device according to claim 12, wherein, At least one of the following: The number of preferred beams for each interference RS resource among the several interference RS resources in the one or more interference RS resources or for each interference RS resource group among the several interference RS resource groups in the one or more interference RS resource groups is equal to or less than the number of the associated multiple transmit beams, or is only 1; Or The number of the several interference RS resources in the one or more interference RS resources or the number of the several interference RS resource groups in the one or more interference RS resource groups is equal to or less than the number of the one or more interference RS resources or the number of the one or more interference RS resource groups, or is only 1.

15. The apparatus according to any one of claims 12 to 14, wherein the processing system is configured to determine the one or more preferred beams based on reducing interference associated with one or more monitored interference RS resources, wherein the interference associated with one of the multiple transmit beams is at least partially identified based on the interference RS associated with the beam.

16. The apparatus according to claim 11, wherein: The RS resource configuration further indicates one or more channel state information reference signal (CSI-RS) resources, wherein each of the one or more CSI-RS resources is associated with at least one interference RS resource among the one or more interference RS resources or at least one interference RS resource group among the one or more interference RS resource groups, and the one or more CSI-RS resources include at least one non-zero power CSI-RS resource; and The processing system is configured to: Monitor at least one CSI-RS via each of the one or more CSI-RS resources; and Measure the received signal parameters associated with the at least one CSI-RS for each of the one or more CSI-RS resources, and the interference report indicates the received signal parameters associated with the at least one CSI-RS for each of the one or more CSI-RS resources.

17. The apparatus according to claim 16, wherein the processing system is configured to calculate the signal-to-noise plus interference ratio (SINR) associated with at least one interference RS resource among the one or more interference RS resources or at least one interference RS resource group among the one or more interference RS resource groups, wherein: The interference parameter for SINR calculation corresponds to the interference associated with at least one interference RS resource among the one or more interference RS resources or at least one interference RS resource group among the one or more interference RS resource groups; The signal parameter for SINR calculation is the received signal parameter associated with the corresponding CSI-RS resource among the one or more CSI-RS resources; The interference report indicates the SINR associated with at least one interference RS resource among the one or more interference RS resources or at least one interference RS resource group among the one or more interference RS resource groups.

18. The apparatus according to claim 11, wherein: The one or more interference RS resources or the one or more interference RS resource sets include one or more full-duplex interference RS resources; The RS resource configuration further indicates one or more half-duplex interference RS resources; The processing system is configured to: Monitor one or more interference RSs via each of the one or more half-duplex interference RS resources; and For each of the one or more half-duplex interference RS resources, measure another interference associated with each beam of the plurality of transmit beams for the one or more interference RSs, and the interference report is further generated based on the measured another interference.

19. The apparatus according to claim 11, wherein the one or more interference RS resources are sounding reference signal (SRS) resources, or wherein the one or more interference RS resource sets are sounding reference signal (SRS) resource sets.

20. The apparatus according to claim 11, wherein the apparatus is a user equipment (UE) or a sub-node, and wherein the radio node is a base station or a donor node.

21. An apparatus for wireless communication, comprising: A receiver configured to receive a reference signal (RS) resource configuration from a radio node, the RS resource configuration indicating one or more interference RS resources; A processing system configured to: Monitor one or more interference RSs via the one or more interference RS resources, For each of the one or more interference RS resources, determine a receive beam based on the one or more interference RSs of the one or more interference RS resources, where the receive beam is one of a plurality of receive beams used to receive the one or more interference RSs, and the receive beam has the lowest receive power among the plurality of receive beams, and Select a transmit beam corresponding to the receive beam; And A transmitter configured to transmit signaling to the radio node via the transmit beam.

22. The apparatus according to claim 21, wherein the apparatus is a user equipment (UE) or a sub-node, and wherein the radio node is a base station or a donor node.

23. An apparatus for wireless communication, comprising: A receiver configured to receive a reference signal (RS) resource configuration from a radio node, the RS resource configuration indicating one or more full-duplex interference RS resources and one or more half-duplex interference RS resources; A transmitter configured to transmit one or more interference RSs for each of the one or more full-duplex interference RS resources and the one or more half-duplex interference RS resources, wherein: The receiver is further configured to: receive an indication of quasi-co-location (QCL) information from the radio node after transmitting the one or more interference RSs, the QCL information indicating first spatial relationship information for transmission via the one or more full-duplex interference resources and second spatial relationship information for transmission via the one or more half-duplex interference resources; and The transmitter is further configured to transmit signaling to the wireless node according to the QCL information.

24. The apparatus according to claim 23, wherein: the indication of the QCL information is based on first spatial relation information regarding UE-specific physical uplink control channel (PUCCH) transmission and includes radio resource control (RRC), medium access control-control element (MAC-CE), or downlink control information (DCI); or the indication of the QCL information is based on second spatial relation information regarding UE-specific physical uplink shared channel (PUSCH) transmission and includes RRC, MAC-CE, or DCI.

25. The apparatus according to claim 24, wherein: the interference RS resource is an SRS resource, and the QCL information indicating the first spatial relation information and the second spatial relation information includes a corresponding one of a first SRS resource indicator and a second SRS resource indicator.

26. The apparatus according to claim 23, wherein the apparatus is a user equipment (UE) or a sub-node, and wherein the second wireless node is a base station or a donor node.

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