Cross-link interference reference signal transmission and measurement in sub-band full duplex scenarios

Abstract

Methods, systems, and devices for wireless communication are described. The described techniques may allow a disturbed user equipment (UE) to perform cross-link interference (CLI) measurements in a guard band. The disturbed UE may receive a resource configuration from a network entity to perform CLI receive strength signal indicator (RSSI) measurements in guard band resources. Additionally or alternatively, the disturbed UE may receive a sounding reference signal (SRS) resource configuration from the network entity to perform CLI reference signal received power (RSRP) measurements in the guard band resources. In such examples, an aggressor UE may receive an SRS resource configuration from the network entity for transmitting an SRS to the disturbed UE in the guard band resource. Control signaling that configures SRS resources may indicate to the aggressor UE a threshold transmit power, transmit beam restriction, or both for transmitting the SRS.

Description

[0001] Cross-referencing

[0002] This patent application claims priority to U.S. Patent Application No. 18 / 670,682, filed May 21, 2024, entitled “CROSS-LINK INTERFERENCE REFERENCE SIGNAL TRANSMISSION AND MEASUREMENTS IN SUBBAND ​​FULL-DUPLEX SCENARIOS”, and U.S. Provisional Patent Application No. 63 / 503,683, filed May 22, 2023, entitled “CROSS-LINK INTERFERENCE REFERENCE SIGNAL TRANSMISSION AND MEASUREMENTS IN SUBBAND ​​FULL-DUPLEX SCENARIOS”; each of these applications is assigned to the assignee of this application, and each of these applications is expressly incorporated herein by reference. Technical Field

[0003] The following pertains to wireless communication, including the transmission and measurement of cross-link interference reference signals in sub-band full-duplex scenarios. Background Technology

[0004] Wireless communication systems are widely deployed to provide various types of communication content, such as voice, video, packet data, message sending and receiving, broadcasting, and so on. These systems can support communication with multiple users by sharing available system resources (e.g., time, frequency, and power). Examples of such multiple access systems include fourth-generation (4G) systems (such as Long Term Evolution (LTE) systems, LTE-A Advanced (LTE-A) systems, or LTE-A Pro systems) and fifth-generation (5G) systems (which may be referred to as New Radio (NR) systems). These systems may employ technologies such as Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), Frequency Division Multiple Access (FDMA), Orthogonal FDMA (OFDMA), or Discrete Fourier Transform Extended Orthogonal Frequency Division Multiplexing (DFT-S-OFDM). A wireless multiple access communication system may include one or more base stations, each supporting wireless communication for communication devices, which may be referred to as User Equipment (UE). Summary of the Invention

[0005] The described technology relates to improved methods, systems, devices, and apparatuses for supporting cross-link interference (CLI) transmission and measurement in subband full-duplex scenarios. For example, the described technology specifies that a stricken user equipment (UE) performs cross-link interference (CLI) measurements in a frequency guard band. The stricken UE can transmit capability information indicating its ability to support CLI measurements (e.g., CLI reference signal (CLI-RS) measurements) via the guard band, and the intruding UE can transmit capability information indicating its ability to support CLI-RS transmission via the guard band. The stricken UE can receive control signaling (e.g., resource configuration) from a network entity instructing on CLI resources, and perform CLI Received Strength Signal Indicator (RSSI) measurements in the guard band resources via these CLI resources. Additionally or alternatively, the stricken UE can receive probe reference signal (SRS) resource configuration from the network entity instructing on SRS resources, and perform CLI Reference Signal Received Power (RSRP) measurements in the guard band resources via these SRS resources. In such examples, the intruding UE can receive SRS resource configuration from the network entity for transmitting SRS via the guard band resource. The control signaling configuring the SRS resource can instruct the intruding UE on a threshold transmit power, transmit beam limit, or both for transmitting the SRS, which can reduce or limit interference caused by transmitting the SRS via the guard band.

[0006] A method for wireless communication at a UE is described. The method may include: transmitting capability information indicating that the UE is capable of performing CLI measurements via a guard band located between an uplink subband and a downlink subband during at least one time period allocated for subband full-duplex operation; receiving, based on transmitting the capability information, control signaling from at least a second UE indicating one or more resources for measuring CLI, the one or more resources at least partially overlapping the guard band in frequency; performing one or more CLI measurements via the one or more resources; and transmitting a CLI measurement report based on the one or more CLI measurements.

[0007] An apparatus for wireless communication at a UE is described. The apparatus may include at least one processor, at least one memory coupled to the at least one processor (e.g., operational ground, communication ground, functional ground, electronic ground, or electrical ground), and instructions stored in the at least one memory. The instructions may be executed by the at least one processor (e.g., directly, indirectly, after preprocessing, or without preprocessing) to cause the UE to: transmit capability information indicating that the UE is capable of performing CLI measurements via a guard band located between an uplink subband and a downlink subband during at least one time period allocated for subband full-duplex operation; receive, based on transmitting the capability information, control signaling from at least a second UE indicating one or more resources for measuring CLI, the one or more resources at least partially overlapping the guard band in frequency; perform one or more CLI measurements via the one or more resources; and transmit a CLI measurement report based on the one or more CLI measurements.

[0008] Another apparatus for wireless communication at a UE is described. The apparatus may include: components for transmitting capability information indicating that the UE is capable of performing CLI measurements via a guard band located between an uplink subband and a downlink subband during at least one time period allocated for subband full-duplex operation; components for receiving control signaling from at least a second UE, based on transmitting the capability information, indicating one or more resources for measuring CLI, the one or more resources at least partially overlapping the guard band in frequency; components for performing one or more CLI measurements via the one or more resources; and components for transmitting a CLI measurement report based on the one or more CLI measurements.

[0009] A non-transitory computer-readable medium storing code for wireless communication at a UE is described. The code may include instructions executable by at least one processor (e.g., directly, indirectly, after preprocessing, or without preprocessing) to: transmit capability information instructing the UE to perform CLI measurements via a guard band located between an uplink subband and a downlink subband during at least one time period allocated for subband full-duplex operation; receive control signaling from at least a second UE, based on transmitting the capability information, indicating one or more resources for measuring CLI, the one or more resources at least partially overlapping the guard band in frequency; perform one or more CLI measurements via the one or more resources; and transmit a CLI measurement report based on the one or more CLI measurements.

[0010] Some examples of the methods, apparatuses, and nontransitory computer-readable media described herein may also include operations, features, components, or instructions for receiving, via the control signaling, an indication that the one or more resources at least partially overlap with the uplink subband, the downlink subband, or both.

[0011] Some examples of the methods, apparatuses, and nontransitory computer-readable media described herein may also include operations, features, components, or instructions for receiving, via the control signaling, an indication that the one or more resources do not overlap with the uplink subband or the downlink subband.

[0012] In some examples of the methods, apparatuses, and nontransitory computer-readable media described herein, performing the one or more CLI measurements may include operations, features, components, or instructions for performing CLI-RSSI measurements via the one or more resources based on the capability.

[0013] Some examples of the methods, apparatuses, and nontransitory computer-readable media described herein may also include operations, features, components, or instructions for performing the following actions: receiving, based on the capability, an indication via the control signaling to a set of multiple SRS resources including the one or more resources; monitoring, via the set of multiple SRS resources, one or more SRSs from at least the second UE; and measuring CLI-RSRP via the one or more resources based on the monitoring.

[0014] In some examples of the methods, apparatuses, and nontransitory computer-readable media described herein, the set of multiple SRS resources corresponds to a communication SRS configuration or a location SRS configuration, wherein one or more resources comprise a subset of the set of multiple SRS resources.

[0015] In some examples of the methods, apparatuses, and nontransitory computer-readable media described herein, the set of multiple SRS resources can be allocated for the one or more CLI measurements.

[0016] A method for wireless communication at a UE is described. The method may include: transmitting capability information indicating that the UE is capable of transmitting CLI-RS via a guard band located between an uplink subband and a downlink subband during at least one time period allocated for subband full-duplex operation; receiving control signaling instructing one or more resources for transmitting the CLI-RS based on transmitting the capability information, the one or more resources at least partially overlapping the guard band in frequency; and transmitting the CLI-RS via the one or more resources based on receiving the control signaling instructing the one or more resources.

[0017] An apparatus for wireless communication at a UE is described. The apparatus may include at least one processor, at least one memory coupled to the at least one processor (e.g., operational ground, communication ground, functional ground, electronic ground, or electrical ground), and instructions stored in the at least one memory. The instructions may be executed by the at least one processor (e.g., directly, indirectly, after preprocessing, or without preprocessing) to cause the UE to: transmit capability information indicating that the UE is capable of transmitting CLI-RS via a guard band located between an uplink subband and a downlink subband during at least one time period allocated for subband full-duplex operation; receive, based on transmitting the capability information, control signaling indicating one or more resources for transmitting the CLI-RS, the one or more resources at least partially overlapping the guard band in frequency; and transmit the CLI-RS via the one or more resources based on receiving the control signaling indicating the one or more resources.

[0018] Another apparatus for wireless communication at a UE is described. The apparatus may include: components for transmitting capability information indicating that the UE is capable of transmitting CLI-RS via a guard band located between an uplink subband and a downlink subband during at least one time period allocated for subband full-duplex operation; components for receiving control signaling instructing one or more resources for transmitting the CLI-RS based on transmitting the capability information, the one or more resources at least partially overlapping the guard band in frequency; and components for transmitting the CLI-RS via the one or more resources based on receiving the control signaling instructing the one or more resources.

[0019] A non-transitory computer-readable medium storing code for wireless communication at a UE is described. The code may include instructions executable by at least one processor (e.g., directly, indirectly, after preprocessing, or without preprocessing) to: transmit capability information instructing the UE to transmit CLI-RS via a guard band located between an uplink subband and a downlink subband during at least one time period allocated for subband full-duplex operation; receive control signaling instructing one or more resources for transmitting the CLI-RS based on transmitting the capability information, the one or more resources at least partially overlapping the guard band in frequency; and transmit the CLI-RS via the one or more resources based on receiving the control signaling instructing the one or more resources.

[0020] Some examples of the methods, apparatuses, and nontransitory computer-readable media described herein may also include operations, features, components, or instructions for performing the following actions: receiving an indication of a threshold transmit power, transmit beam limit, or both via the control signaling, wherein transmitting the CLI-RS includes: transmitting the CLI-RS according to the threshold transmit power, via the transmit beam, or both.

[0021] Some examples of the methods, apparatuses, and nontransitory computer-readable media described herein may also include operations, features, components, or instructions for receiving, via the control signaling, an instruction for a set of multiple SRS resources including the one or more resources, wherein the CLI-RS includes the SRS.

[0022] In some examples of the methods, apparatuses, and nontransitory computer-readable media described herein, the set of multiple SRS resources corresponds to a communication SRS configuration or a location SRS configuration, wherein one or more resources comprise a subset of the set of multiple SRS resources.

[0023] In some examples of the methods, apparatuses, and nontransitory computer-readable media described herein, this set of multiple SRS resources can be allocated for CLI measurements.

[0024] Some examples of the methods, apparatuses, and nontransitory computer-readable media described herein may also include operations, features, components, or instructions for receiving, via the control signaling, an indication that the one or more resources at least partially overlap with the uplink subband.

[0025] Some examples of the methods, apparatuses, and nontransitory computer-readable media described herein may also include operations, features, components, or instructions for receiving, via the control signaling, an indication that the one or more resources do not overlap with the uplink subband or the downlink subband.

[0026] A method for wireless communication at a network entity is described. The method may include: receiving capability information from a set of multiple UEs, the capability information indicating the capability to support CLI measurements via a guard band located between an uplink subband and a downlink subband during at least one time period allocated for subband full-duplex operation; transmitting control signaling, based on the received capability information, indicating one or more resources for CLI measurements, the one or more resources at least partially overlapping the guard band in frequency; and receiving a CLI measurement report from at least a first UE in the set of multiple UEs.

[0027] An apparatus for wireless communication at a network entity is described. The apparatus may include at least one processor, at least one memory coupled to the at least one processor (e.g., operational ground, communication ground, functional ground, electronic ground, or electrical ground), and instructions stored in the at least one memory. The instructions may be executed by the at least one processor (e.g., directly, indirectly, after preprocessing, or without preprocessing) to cause the network entity to: receive capability information from a set of multiple UEs, the capability information indicating the capability to support CLI measurements via a guard band located between an uplink subband and a downlink subband during at least one time period allocated for subband full-duplex operation; based on receiving the capability information, transmit control signaling indicating one or more resources for CLI measurements, the one or more resources at least partially overlapping the guard band in frequency; and receive a CLI measurement report from at least a first UE in the set of multiple UEs.

[0028] Another apparatus for wireless communication at a network entity is described. The apparatus may include: components for receiving capability information from a set of multiple UEs, the capability information indicating the capability to support CLI measurements via a guard band located between an uplink subband and a downlink subband during at least one time period allocated for subband full-duplex operation; components for transmitting control signaling indicating one or more resources for CLI measurements based on the received capability information, the one or more resources at least partially overlapping the guard band in frequency; and components for receiving a CLI measurement report from at least a first UE in the set of multiple UEs.

[0029] A non-transitory computer-readable medium is described, storing code for wireless communication at a network entity. The code may include instructions executable by at least one processor (e.g., directly, indirectly, after preprocessing, or without preprocessing) to: receive capability information from a set of multiple UEs, the capability information indicating the capability to support CLI measurements via a guard band located between an uplink subband and a downlink subband during at least one time period allocated for subband full-duplex operation; based on receiving the capability information, transmit control signaling indicating one or more resources for CLI measurements, the one or more resources at least partially overlapping the guard band in frequency; and receive a CLI measurement report from at least a first UE in the set of multiple UEs.

[0030] In some examples of the methods, apparatuses, and nontransitory computer-readable media described herein, receiving the capability information may include operations, features, components, or instructions for performing actions such as receiving the capability information from the first UE, the capability information including an indication that the first UE may be able to perform CLI measurements via the guard band.

[0031] In some examples of the methods, apparatuses, and nontransitory computer-readable media described herein, receiving the capability information may include operations, features, components, or instructions for performing the following actions: receiving the capability information from a second UE, the capability information including an indication that the second UE may be able to transmit CLI-RS via the guard band.

[0032] Some examples of the methods, apparatuses, and nontransitory computer-readable media described herein may also include operations, features, components, or instructions for performing the following actions: sending an indication to the second UE via the control signaling based on the capability information regarding a threshold transmit power, transmit beam limit, or both.

[0033] Some examples of the methods, apparatuses, and nontransitory computer-readable media described herein may also include operations, features, components, or instructions for sending an instruction via the control signaling to a set of multiple SRS resources including the one or more resources.

[0034] In some examples of the methods, apparatuses, and nontransitory computer-readable media described herein, the set of multiple SRS resources corresponds to a communication SRS configuration or a location SRS configuration, wherein one or more resources comprise a subset of the set of multiple SRS resources.

[0035] In some examples of the methods, apparatuses, and nontransitory computer-readable media described herein, this set of multiple SRS resources can be allocated for CLI measurements.

[0036] Some examples of the methods, apparatuses, and nontransitory computer-readable media described herein may also include operations, features, components, or instructions for performing the following actions: sending an indication via the control signaling that the one or more resources at least partially overlap with the uplink subband.

[0037] Some examples of the methods, apparatuses, and nontransitory computer-readable media described herein may also include operations, features, components, or instructions for performing the following actions: sending an indication via the control signaling that the one or more resources do not overlap with the uplink subband or the downlink subband. Attached Figure Description

[0038] Figure 1 An example of a wireless communication system supporting the transmission and measurement of cross-link interference (CLI) reference signals in a sub-band full-duplex scenario, according to one or more aspects of this disclosure, is shown.

[0039] Figure 2 An example of a wireless communication system supporting CLI reference signal transmission and measurement in an SBFD scenario is shown, according to one or more aspects of this disclosure.

[0040] Figure 3 An example of a resource graph supporting CLI reference signal transmission and measurement in an SBFD scenario is shown, according to one or more aspects of this disclosure.

[0041] Figure 4 An example of a process flow for CLI reference signal transmission and measurement in a SBFD scenario, according to one or more aspects of this disclosure, is shown.

[0042] Figure 5 and Figure 6 A block diagram of an apparatus for transmitting and measuring CLI reference signals in an SBFD scenario, according to one or more aspects of this disclosure, is shown.

[0043] Figure 7 A block diagram of a communication manager supporting CLI reference signal transmission and measurement in an SBFD scenario, according to one or more aspects of this disclosure, is shown.

[0044] Figure 8 A diagram of a system including a device supporting CLI reference signal transmission and measurement in an SBFD scenario is shown, according to one or more aspects of this disclosure.

[0045] Figure 9 and Figure 10 A block diagram of an apparatus for transmitting and measuring CLI reference signals in an SBFD scenario, according to one or more aspects of this disclosure, is shown.

[0046] Figure 11 A block diagram of a communication manager supporting CLI reference signal transmission and measurement in an SBFD scenario, according to one or more aspects of this disclosure, is shown.

[0047] Figure 12 A diagram of a system including a device supporting CLI reference signal transmission and measurement in an SBFD scenario is shown, according to one or more aspects of this disclosure.

[0048] Figures 13 to 18 A flowchart illustrating a method for transmitting and measuring CLI reference signals in a SBFD scenario according to one or more aspects of this disclosure is shown. Detailed Implementation

[0049] In some wireless communication systems, network entities can communicate with one or more User Equipments (UEs) using Subband Full-Duplex (SBFD) communication. That is, the network entity can configure the UE to simultaneously receive downlink signaling and transmit uplink signaling. In such systems, the frequency subband used for uplink communication can be separated from the frequency subband used for downlink communication by a frequency guard band. The frequency guard band can be configured to reduce interference between the uplink and downlink subbands.

[0050] In some examples, an intruding UE communicating uplink or downlink signaling with a network entity can generate interference (e.g., cross-link interference (CLI)) at a victim UE performing SBFD communication. For instance, a victim UE can monitor and receive downlink signaling while the intruding UE is transmitting uplink signaling, in which case the uplink signaling from the intruding UE may interfere with the downlink signaling (e.g., a victim UE monitoring downlink signaling can detect uplink signaling transmitted by the intruding UE). The victim UE can perform CLI measurements (e.g., Received Signal Strength Indication (RSSI) or Reference Signal Received Power (RSRP) measurements) in CLI measurement resources configured by the network entity. The network can utilize CLI measurements to identify and mitigate or avoid communications that result in excessive CLI, thereby reducing the reliability of communication.

[0051] In SBFD scenarios, guard bands can be allocated to keep them unoccupied. However, if the UE completely avoids using the guard band, system efficiency may decrease, system latency may increase, and user experience may degrade. Furthermore, if the affected UE performs CLI measurements via the frequency guard band, interference may increase at the network entity or at other UEs communicating with the network entity (e.g., transmitting CLI-RS via the guard band may lead to increased interference in the uplink or downlink subbands).

[0052] Therefore, the techniques described herein can allow a compromised UE to perform CLI measurements via a frequency guard band. For example, the compromised UE can send capability information indicating that it supports CLI measurements (e.g., CLI Reference Signal (CLI-RS) measurements) via the guard band, and the intruding UE can send capability information indicating that it supports CLI-RS measurements via the guard band. The compromised UE can receive control signaling (e.g., resource configuration) from a network entity instructing it to perform CLI-RSSI measurements via the guard band resources through the CLI resources. In such examples, the compromised UE can perform CLI-RSSI measurements via the guard band resources; via both the guard band resources and uplink subband resources; or via the guard band resources, uplink subband resources, and downlink subband resources. Additionally or alternatively, the compromised UE can receive resource configuration instructing it to perform CLI-RSRP measurements via the guard band resources through the SRS resources from the network entity. In such examples, the intruding UE can receive probe reference signal (SRS) resource configuration from the network entity for transmitting SRS via the guard band resource (e.g., and the uplink frequency subband). The control signaling configuring the SRS resource can instruct the intruding UE on a threshold transmit power, transmit beam limit, or both for transmitting the SRS, which can reduce or limit interference caused by transmitting the SRS via the guard band.

[0053] First, aspects of this disclosure are described within the context of a wireless communication system. These aspects are further illustrated and described with reference to resource diagrams and process flowcharts. Furthermore, aspects of this disclosure are further illustrated and described with reference to apparatus diagrams, system diagrams, and flowcharts relating to CLI reference signal transmission and measurement in an SBFD scenario.

[0054] Figure 1 An example of a wireless communication system 100 supporting CLI reference signal transmission and measurement in an SBFD scenario according to one or more aspects of this disclosure is shown. The wireless communication system 100 may include one or more network entities 105, one or more UEs 115, and a core network 130. In some examples, the wireless communication system 100 may be a Long Term Evolution (LTE) network, an Advanced LTE (LTE-A) network, an LTE-A Pro network, a New Radio (NR) network, or a network operating under other systems and radio technologies, including future systems and radio technologies not explicitly mentioned herein.

[0055] Network entity 105 may be distributed across a geographical area to form wireless communication system 100, and may include devices employing different forms or having different capabilities. In various examples, network entity 105 may be referred to as a network element, mobility element, radio access network (RAN) node, or network equipment, among other designations. In some examples, network entity 105 and UE 115 may wirelessly communicate via one or more communication links 125 (e.g., radio frequency (RF) access links). For example, network entity 105 may support coverage area 110 (e.g., a geographical coverage area) within which UE 115 and network entity 105 may establish one or more communication links 125. Coverage area 110 may be an example of a geographical area within which network entity 105 and UE 115 may support the transmission of signals according to one or more radio access technologies (RATs).

[0056] UE 115 can be distributed throughout the coverage area 110 of wireless communication system 100, and each UE 115 can be stationary or mobile, or stationary and mobile at different times. UE 115 can be devices in different forms or with different capabilities. Figure 1 Some example UE 115s are illustrated herein. The UE 115 described herein can be able to support various types of devices (such as, e.g., ...). Figure 1 It communicates with other UEs (115 or network entity 105) as shown.

[0057] As described herein, nodes of the wireless communication system 100 (which may be referred to as network nodes or wireless nodes) may be network entity 105 (e.g., any network entity described herein), UE 115 (e.g., any UE described herein), network controller, apparatus, device, computing system, one or more components, or another suitable processing entity configured to perform any of the techniques described herein. For example, a node may be UE 115. Alternatively, a node may be network entity 105. Furthermore, a first node may be configured to communicate with a second or third node. In one aspect of this example, the first node may be UE 115, the second node may be network entity 105, and the third node may be UE 115. In another aspect of this example, the first node may be UE 115, the second node may be network entity 105, and the third node may be network entity 105. In other aspects of this example, the first node, the second node, and the third node may be different from these examples. Similarly, references to UE 115, network entity 105, device, equipment, computing system, etc., may include disclosures of UE 115, network entity 105, device, equipment, computing system, etc., as nodes. For example, a disclosure that UE 115 is configured to receive information from network entity 105 also discloses that a first node is configured to receive information from a second node.

[0058] In some examples, network entity 105 may communicate with core network 130, or network entity 105 may communicate with each other, or both. For example, network entity 105 may communicate with core network 130 via one or more backhaul communication links 120 (e.g., according to S1, N2, N3, or other interface protocols). In some examples, network entity 105 may communicate with each other directly (e.g., directly between network entities 105) or indirectly (e.g., via core network 130) via backhaul communication links 120 (e.g., according to X2, Xn, or other interface protocols). In some examples, network entity 105 may communicate with each other via midhaul communication link 162 (e.g., according to midhaul interface protocol) or fronthaul communication link 168 (e.g., according to fronthaul interface protocol) or any combination thereof. Backhaul communication link 120, midhaul communication link 162, or fronthaul communication link 168 may be or include one or more wired links (e.g., electrical links, fiber optic links), one or more wireless links (e.g., radio links, wireless optical links), etc., or various combinations thereof. UE 115 can communicate with core network 130 via communication link 155.

[0059] One or more network entities in network entity 105 described herein may include or be referred to as base station 140 (e.g., transceiver base station, radio base station, NR base station, access point, radio transceiver, node B, eNodeB (eNB), next-generation node B or gigabit node B (any of which may be referred to as gNB), 5G NB, next-generation eNB (ng-eNB), home node B, home evolution node B, or other suitable terms). In some examples, network entity 105 (e.g., base station 140) may be implemented in an aggregated (e.g., monolithic, standalone) base station architecture that may be configured to utilize a protocol stack physically or logically integrated within a single network entity 105 (e.g., a single RAN node, such as base station 140).

[0060] In some examples, network entity 105 may be implemented in a decomposed architecture (e.g., a decomposed base station architecture, a decomposed RAN architecture) that can be configured to utilize protocol stacks physically or logically distributed across two or more network entities 105 (such as an Integrated Access Backhaul (IAB) network, an Open RAN (O-RAN) (e.g., a network configuration sponsored by the O-RAN Alliance), or a Virtualized RAN (vRAN) (e.g., a Cloud RAN (C-RAN)). For example, network entity 105 may include one or more of the following: a Central Unit (CU) 160, a Distributed Unit (DU) 165, a Radio Unit (RU) 170, a RAN Intelligent Controller (RIC) 175 (e.g., a near-real-time RIC, a non-real-time RIC), a Service Management and Orchestration (SMO) 180 system, or any combination thereof. 170 may also be referred to as a radio headend, intelligent radio headend, remote radio headend (RRH), remote radio unit (RRU), or transmit / receive point (TRP). One or more components of network entity 105 in a decomposed RAN architecture may be co-located, or one or more components of network entity 105 may be located in distributed locations (e.g., separate physical locations). In some examples, one or more network entities 105 in a decomposed RAN architecture may be implemented as virtual units (e.g., virtual CU (VCU), virtual DU (VDU), virtual RU (VRU)).

[0061] The functional splitting among CU 160, DU 165, and RU 170 is flexible and can support different functionalities depending on which functions (e.g., network layer functions, protocol layer functions, baseband functions, RF functions, and any combination thereof) are performed at CU 160, DU 165, or RU 170. For example, a protocol stack functional splitting can be used between CU 160 and DU 165, allowing CU 160 to support one or more layers of the protocol stack, and DU 165 to support one or more different layers of the protocol stack. In some examples, CU 160 can host higher protocol layer (e.g., Layer 3 (L3), Layer 2 (L2)) functionalities and signaling (e.g., Radio Resource Control (RRC), Serving Data Adaptation Protocol (SDAP), Packet Data Convergence Protocol (PDCP)). CU 160 can connect to one or more DU 165 or RU 170, and one or more DU 165 or RU 170 can host lower protocol layers, such as Layer 1 (L1) (e.g., Physical (PHY) layer) or L2 (e.g., Radio Link Control (RLC) layer, Medium Access Control (MAC) layer) functionality and signaling, and each can be at least partially controlled by CU 160. Additionally or alternatively, a protocol stack functional split can be employed between DU 165 and RU 170, such that DU 165 can support one or more layers of the protocol stack, and RU 170 can support one or more different layers of the protocol stack. DU 165 can support one or more different cells (e.g., via one or more RU 170). In some cases, functional decomposition between CU 160 and DU 165, or between DU 165 and RU 170, can be performed within the protocol layer (e.g., some functions of the protocol layer can be performed by one of CU 160, DU 165, or RU 170, while other functions of the protocol layer can be performed by different of CU 160, DU 165, or RU 170). CU 160 can be further functionally decomposed into CU control plane (CU-CP) and CU user plane (CU-UP) functions. CU 160 can be connected to one or more DU 165 via midhaul communication link 162 (e.g., F1, F1-c, F1-u), and DU 165 can be connected to one or more RU 170 via fronthaul communication link 168 (e.g., open fronthaul (FH) interface). In some examples, the midhaul communication link 162 or the fronthaul communication link 168 may be implemented based on the interfaces (e.g., channels) between the layers of the protocol stack, which are supported by the corresponding network entities 105 communicating via such communication links.

[0062] In a wireless communication system (e.g., wireless communication system 100), the infrastructure and spectrum resources for radio access can support wireless backhaul link capabilities to supplement wired backhaul connections, thereby providing an IAB network architecture (e.g., to core network 130). In some cases, in an IAB network, one or more network entities 105 (e.g., IAB node 104) may be partially controlled by each other. One or more IAB nodes 104 may be referred to as donor entities or IAB donors. One or more DU 165s or one or more RU 170s may be partially controlled by one or more CU 160s associated with donor network entity 105 (e.g., donor base station 140). One or more donor network entities 105 (e.g., IAB donors) may communicate with one or more additional network entities 105 (e.g., IAB node 104) via supported access and backhaul links (e.g., backhaul communication link 120). IAB node 104 may include an IAB mobile terminal (IAB-MT) controlled (e.g., scheduled) by a DU 165 of a coupled IAB donor. The IAB-MT may include a separate set of antennas for relaying communication with UE 115, or may share the same antennas (e.g., those of RU 170) for access to IAB node 104 via DU 165 of IAB node 104. (e.g., referred to as a virtual IAB-MT (vIAB-MT)). In some examples, IAB node 104 may include a DU 165 that supports communication links with additional entities (e.g., IAB node 104, UE 115) within a relay chain or configuration (e.g., downstream) of the access network. In such cases, one or more components of the decomposed RAN architecture (e.g., one or more IAB nodes 104 or components of IAB node 104) may be configured to operate according to the techniques described herein.

[0063] In the context of applying the techniques described herein to a decomposed RAN architecture, one or more components of the decomposed RAN architecture can be configured to support CLI reference signal transmission and measurement in an SBFD scenario as described herein. For example, some operations described as being performed by UE 115 or network entity 105 (e.g., base station 140) may additionally or alternatively be performed by one or more components of the decomposed RAN architecture (e.g., IAB node 104, DU 165, CU 160, RU 170, RIC 175, SMO 180).

[0064] UE 115 may include or be referred to as a mobile device, wireless device, remote device, handheld device, or subscriber device, or any other suitable term, wherein “device” may also be referred to as a unit, station, terminal, or client, etc. UE 115 may also include or be referred to as personal electronic devices, such as: cellular phones, personal digital assistants (PDAs), multimedia / entertainment devices (e.g., radios, MP3 players, or video devices), cameras, gaming devices, navigation / positioning devices (e.g., GNSS (Global Navigation Satellite System) devices based on, for example, GPS (Global Positioning System), BeiDou, GLONASS, or Galileo, or ground-based devices), tablet computers, laptop computers, netbooks, smartbooks, personal computers, smart devices, wearable devices (e.g., smartwatches, smart clothing, smart glasses, virtual reality goggles, smart wristbands, smart jewelry (e.g., smart rings, smart bracelets)), drones, robots / robotic devices, vehicles, in-vehicle equipment, meters (e.g., parking timers, electricity meters, gas meters, water meters), monitors, air pumps, electrical appliances (e.g., kitchen appliances, washing machines, dryers), location tags, medical / healthcare devices, implants, sensors / actuators, displays, or any other suitable devices configured to communicate via wireless or wired media. In some examples, UE 115 may include or be referred to as a wireless local loop (WLL) station, Internet of Things (IoT) device, Internet of Everything (IoE) device, or machine-type communication (MTC) device, etc., which can be implemented in a variety of objects such as appliances or vehicles, meters, etc.

[0065] The UE 115 described herein can communicate with various types of devices, such as other UEs 115 that sometimes act as relays, network entities 105, and network equipment including macro eNBs or gNBs, small cell eNBs or gNBs, or relay base stations, etc. Figure 1 As shown.

[0066] UE 115 and network entity 105 can wirelessly communicate with each other via one or more communication links 125 (e.g., access links) using resources associated with one or more carriers. The term "carrier" can refer to a set of RF spectrum resources having a physical layer structure defined for supporting communication link 125. For example, a carrier for communication link 125 may include a portion of the RF spectrum band (e.g., a bandwidth portion (BWP)) operating according to one or more physical layer channels for a given radio access technology (e.g., LTE, LTE-A, LTE-A Pro, NR). Each physical layer channel may carry acquisition signaling (e.g., synchronization signals, system information), control signaling coordinating carrier operation, user data, or other signaling. Wireless communication system 100 may support communication with UE 115 using carrier aggregation or multi-carrier operation. Depending on the carrier aggregation configuration, UE 115 may be configured with multiple downlink component carriers and one or more uplink component carriers. Carrier aggregation can be used for both frequency division duplex (FDD) and time division duplex (TDD) component carriers. Communication between network entity 105 and other devices can refer to communication between these devices and any part of network entity 105 (e.g., entity, sub-entity). For example, the terms “send,” “receive,” or “communicate” when referring to network entity 105 can refer to any part of the RAN’s network entity 105 (e.g., base station 140, CU 160, DU 165, RU170) communicating with another device (e.g., directly or via one or more other network entities 105).

[0067] In some examples, such as in carrier aggregation configurations, a carrier may also have acquisition signaling or control signaling to coordinate the operation of other carriers. A carrier may be associated with a frequency channel (e.g., an Evolved Universal Mobile Telecommunications System Terrestrial Radio Access (E-UTRA) Absolute RF Channel Number (EARFCN)) and may be identified according to a channel grating used for discovery by UE 115. A carrier may operate in standalone mode, in which case initial acquisition and connection can be performed by UE 115 via that carrier, or the carrier may operate in non-standalone mode, in which case different carriers (e.g., the same or different radio access technologies) are used to anchor the connection.

[0068] The communication link 125 shown in the wireless communication system 100 may include downlink transmission (e.g., forward link transmission) from network entity 105 to UE 115, uplink transmission (e.g., return link transmission) from UE 115 to network entity 105, or both, as well as other transmission configurations. A carrier may carry downlink communication or uplink communication (e.g., in FDD mode), or may be configured to carry both downlink and uplink communication (e.g., in TDD mode).

[0069] A carrier may be associated with a specific bandwidth of the RF spectrum, and in some examples, the carrier bandwidth may be referred to as the carrier or the “system bandwidth” of the wireless communication system 100. For example, the carrier bandwidth may be one bandwidth in a set of bandwidths for a particular radio access technology (e.g., 1.4 MHz, 3 MHz, 5 MHz, 10 MHz, 15 MHz, 20 MHz, 40 MHz, or 80 MHz). Devices of the wireless communication system 100 (e.g., network entity 105, UE 115, or both) may have a hardware configuration that supports communication using a specific carrier bandwidth, or may be configured to support communication using one of the carrier bandwidths in the set of carrier bandwidths. In some examples, the wireless communication system 100 may include a network entity 105 or UE 115 that supports concurrent communication using carriers associated with multiple carrier bandwidths. In some examples, each served UE 115 may be configured to operate using a portion (e.g., subband, BWP) or all of the carrier bandwidth.

[0070] The signal waveform transmitted via a carrier may include multiple subcarriers (e.g., using multi-carrier modulation (MCM) techniques, such as orthogonal frequency division multiplexing (OFDM) or discrete Fourier transform extended OFDM (DFT-S-OFDM)). In a system employing MCM, a resource element may refer to a resource of one symbol period (e.g., the duration of one modulation symbol) and one subcarrier, in which case the symbol period and subcarrier spacing may be inversely related. The number of bits carried by each resource element may depend on the modulation scheme (e.g., the order of the modulation scheme, the decoding rate of the modulation scheme, or both), such that a relatively high number of resource elements (e.g., in the transmission duration) and a relatively high modulation scheme order correspond to a relatively high communication rate. Wireless communication resources may refer to a combination of RF spectrum resources, temporal resources, and spatial resources (e.g., spatial layers or beams), and the use of multiple spatial resources may increase the data rate or data integrity used for communication with UE 115.

[0071] The time interval for network entity 105 or UE 115 can be expressed as a multiple of a basic time unit, such as the sampling period. seconds, of which It can represent the supported subcarrier spacing, and This can represent the supported Discrete Fourier Transform (DFT) size. The time interval of the communication resources can be organized according to radio frames, each with a specified duration (e.g., 10 milliseconds (ms)). Each radio frame can be identified by a System Frame Number (SFN) (e.g., ranging from 0 to 1023).

[0072] Each frame may include multiple consecutively numbered subframes or time slots, and each subframe or time slot may have the same duration. In some examples, a frame may (e.g., in the time domain) be divided into subframes, and each subframe may be further divided into a number of time slots. Alternatively, each frame may include a variable number of time slots, and the number of time slots may depend on the subcarrier spacing. Each time slot may include a number of symbol periods (e.g., depending on the length of the cyclic prefix appended to each symbol period). In some wireless communication systems 100, time slots may be further divided into multiple micro-time slots associated with one or more symbols. Excluding the cyclic prefix, each symbol period may be associated with one or more (e.g., The duration of a symbol period is associated with a (number) sampling period. The duration of a symbol period can depend on the subcarrier spacing or the operating frequency band.

[0073] A subframe, time slot, micro-time slot, or symbol can be the smallest scheduling unit of the wireless communication system 100 (e.g., in the time domain) and can be referred to as a transmission time interval (TTI). In some examples, the duration of the TTI (e.g., the number of symbol periods in the TTI) can be variable. Additionally or alternatively, the smallest scheduling unit of the wireless communication system 100 can be dynamically selected (e.g., in a burst of shortened TTIs (sTTIs)).

[0074] Depending on the technology, carriers can be used to multiplex physical channels for communication. One or more of Time Division Multiplexing (TDM), Frequency Division Multiplexing (FDM), or hybrid TDM-FDM techniques can be used, for example, to multiplex physical control channels and physical data channels for signaling via a downlink carrier. The control region of the physical control channel (e.g., a control resource set (CORESET)) can be defined by a set of symbol periods and can extend across the system bandwidth of the carrier or a subset of that bandwidth. One or more control regions (e.g., CORESET) can be configured for a set of UEs 115. For example, one or more UEs in UE 115 can monitor or search control regions to obtain control information based on one or more search space sets, and each search space set can include one or more control channel candidates in one or more aggregation levels arranged in a concatenated manner. The aggregation level of control channel candidates can refer to the amount of control channel resources (e.g., control channel elements (CCEs)) associated with coded information for a control information format having a given payload size. The search space set may include: a common search space set configured to transmit control information to multiple UEs 115, and a UE-specific search space set used to transmit control information to a specific UE 115.

[0075] In some examples, network entity 105 (e.g., base station 140, RU 170) may be mobile, and thus provide communication coverage to mobile coverage areas 110. In some examples, different coverage areas 110 associated with different technologies may overlap, but the different coverage areas 110 may be supported by the same network entity 105. In some other examples, overlapping coverage areas 110 associated with different technologies may be supported by different network entities 105. The wireless communication system 100 may include, for example, a heterogeneous network in which different types of network entities 105 use the same or different radio access technologies to provide coverage for various coverage areas 110.

[0076] Wireless communication system 100 may be configured to support ultra-reliable communication or low-latency communication, or various combinations thereof. For example, wireless communication system 100 may be configured to support ultra-reliable low-latency communication (URLLC). UE 115 may be designed to support ultra-reliable or low-latency or critical functions. Ultra-reliable communication may include private or group communication and may be supported by one or more services, such as push-to-talk, video, or data. Support for ultra-reliable, low-latency functions may include prioritization of services, and such services may be used for public safety or general business applications. The terms “ultra-reliable,” “low-latency,” and “ultra-reliable low-latency” are used interchangeably herein.

[0077] In some examples, UE 115 may be configured to support direct communication with other UE 115s via device-to-device (D2D) communication link 135 (e.g., according to peer-to-peer (P2P), D2D, or sidelink protocols). In some examples, one or more UE 115s in a group performing D2D communication may be within the coverage area 110 of network entity 105 (e.g., base station 140, RU 170), which may support aspects of such D2D communication configured (e.g., scheduled by network entity 105). In some examples, one or more UE 115s in such a group may be outside the coverage area 110 of network entity 105, or may otherwise be unable or not configured to receive transmissions from network entity 105. In some examples, a group of UE 115s communicating via D2D communication may support a one-to-many (1:M) system, where each UE 115 transmits to each of the other UE 115s in the group. In some examples, network entity 105 may facilitate the scheduling of resources used for D2D communication. In other examples, D2D communication may be performed between UEs 115 without involving network entity 105.

[0078] Core network 130 provides user authentication, access authorization, tracking, Internet Protocol (IP) connectivity, and other access, routing, or mobility functions. Core network 130 may be an evolved packet core (EPC) or a 5G core (5GC), and may include at least one control plane entity (e.g., a Mobility Management Entity (MME), Access and Mobility Management Function (AMF)) for managing access and mobility, and at least one user plane entity (e.g., a Serving Gateway (S-GW), Packet Data Network (PDN) Gateway (P-GW), or User Plane Function (UPF)) for routing packets or interconnecting to external networks. The control plane entity manages non-access stratum (NAS) functions, such as mobility, authentication, and bearer management of UE 115 served by network entity 105 (e.g., base station 140) associated with core network 130. User IP packets can be delivered through the user plane entity, which provides IP address allocation and other functions. The user plane entity may connect to one or more network operator IP services 150. IP services 150 may include access to the Internet, intranets, IP Multimedia Subsystem (IMS), or packet-switched streaming services.

[0079] Wireless communication system 100 can operate using one or more frequency bands in the range of 300 MHz to 300 GHz. Generally, the region from 300 MHz to 3 GHz is referred to as the Ultra High Frequency (UHF) region or decimeter band because the wavelength range is approximately one decimeter to one meter in length. UHF waves may be blocked or redirected by buildings and environmental features (which may be referred to as clusters), but these waves are sufficient to penetrate structures so that macrocells can provide service to UE 115 located indoors. Compared to communication using smaller frequencies and longer wavelengths in the lower frequency (HF) or very high frequency (VHF) portions of the spectrum below 300 MHz, communication using UHF waves can be associated with smaller antennas and shorter ranges (e.g., less than 100 km).

[0080] Wireless communication system 100 may utilize licensed and unlicensed RF spectrum bands. For example, wireless communication system 100 may use unlicensed frequency bands (such as the 5 GHz Industrial, Scientific, and Medical (ISM) band) to employ Licensed Assisted Access (LAA), LTE Unlicensed (LTE-U) radio access technology, or NR technology. When operating with unlicensed RF spectrum bands, devices such as network entity 105 and UE 115 may employ carrier sensing for collision detection and avoidance. In some examples, operation using unlicensed frequency bands may be combined with component carriers operating with licensed frequency bands based on carrier aggregation configurations (e.g., LAA). Operation using unlicensed spectrum may include downlink transmission, uplink transmission, P2P transmission, or D2D transmission, etc.

[0081] Network entity 105 (e.g., base station 140, RU 170) or UE 115 may be equipped with multiple antennas that can be used to employ techniques such as transmit diversity, receive diversity, multiple-input multiple-output (MIMO) communication, or beamforming. The antennas of network entity 105 or UE 115 may be located within one or more antenna arrays or antenna panels, which can support MIMO operation or transmit or receive beamforming. For example, one or more base station antennas or antenna arrays may be co-located at an antenna assembly (such as an antenna tower). In some examples, the antennas or antenna arrays associated with network entity 105 may be located at different geographical locations. Network entity 105 may include an antenna array having a collection of multiple rows and columns of antenna ports that network entity 105 can use to support beamforming for communication with UE 115. Similarly, UE 115 may include one or more antenna arrays that can support various MIMO or beamforming operations. Additionally or alternatively, the antenna panel may support RF beamforming for signals transmitted via the antenna ports.

[0082] Network entity 105 or UE 115 can use MIMO communication to leverage multipath signal propagation and improve spectral efficiency by transmitting or receiving multiple signals via different spatial layers. This technique is known as spatial multiplexing. The multiple signals can be transmitted, for example, by a transmitting device via different antennas or different combinations of antennas. Similarly, the multiple signals can be received by a receiving device via different antennas or different combinations of antennas. Each of the multiple signals can be referred to as a separate spatial stream and can carry information associated with the same data stream (e.g., the same codeword) or different data streams (e.g., different codewords). Different spatial layers can be associated with different antenna ports used for channel measurement and reporting. MIMO techniques include: single-user MIMO (SU-MIMO), for which multiple spatial layers are transmitted to the same receiving device; and multi-user MIMO (MU-MIMO), for which multiple spatial layers are transmitted to multiple devices.

[0083] Beamforming (also known as spatial filtering, directional transmission, or directional reception) is a signal processing technique that can be used at a transmitting or receiving device (e.g., network entity 105, UE 115) to shape or guide an antenna beam (e.g., a transmit beam, a receive beam) along a spatial path between the transmitting and receiving devices. Beamforming can be achieved by combining signals transmitted via antenna elements of an antenna array such that some signals propagating along a specific orientation relative to the antenna array experience constructive interference, while other signals experience destructive interference. Adjustments to the signals transmitted via the antenna elements may include applying amplitude shifts, phase shifts, or both to the signals carried via the antenna elements associated with the device. The adjustments associated with each of these antenna elements may be defined by a beamforming weight set associated with a specific orientation (e.g., relative to the antenna array of the transmitting or receiving device or relative to some other orientation).

[0084] Network entity 105 or UE 115 may use beam scanning technology as part of beamforming operations. For example, network entity 105 (e.g., base station 140, RU 170) may use multiple antennas or antenna arrays (e.g., antenna panels) to perform beamforming operations for directional communication with UE 115. Some signals (e.g., synchronization signals, reference signals, beam selection signals, or other control signals) may be transmitted multiple times by network entity 105 in different directions. For example, network entity 105 may transmit signals according to different beamforming weight sets associated with different transmission directions. Transmission along different beam directions may be used to identify (e.g., by a transmitting device (such as network entity 105) or by a receiving device (such as UE 115)) the beam direction for later transmission or reception by network entity 105.

[0085] Some signals (such as data signals associated with a specific receiving device) may be transmitted by a transmitting device (e.g., transmitting network entity 105, transmitting UE 115) along a single beam direction (e.g., the direction associated with a receiving device (such as receiving network entity 105 or receiving UE 115). In some examples, the beam direction associated with transmission along a single beam direction may be determined based on the signals transmitted along one or more beam directions. For example, UE 115 may receive one or more signals transmitted by network entity 105 in different directions and may report to network entity 105 an indication of signals received by UE 115 with the highest signal quality or other acceptable signal quality.

[0086] In some examples, transmissions performed by a device (e.g., by network entity 105 or UE 115) may be performed using multiple beam directions, and the device may use a combination of digital pre-decoding or beamforming to generate a combined beam for transmission (e.g., from network entity 105 to UE 115). UE 115 may report feedback indicating pre-decoding weights for one or more beam directions, and this feedback may correspond to a configured set of beams across the system bandwidth or one or more subbands. Network entity 105 may transmit reference signals (e.g., cell-specific reference signals (CRS), channel state information reference signals (CSI-RS)) that may or may not be pre-decoded. UE 115 may provide feedback for beam selection, which may be a pre-decoding matrix indicator (PMI) or codebook-based feedback (e.g., multi-panel codebook, linear combination codebook, port selection codebook). Although these techniques are described with reference to signals transmitted by network entity 105 (e.g., base station 140, RU 170) in one or more directions, UE 115 may use similar techniques to transmit signals multiple times in different directions (e.g., to identify the beam direction used by UE 115 for subsequent transmission or reception), or to transmit signals in a single direction (e.g., to transmit data to a receiving device).

[0087] A receiving device (e.g., UE 115) may perform reception operations according to multiple reception configurations (e.g., directional listening) when receiving various signals (such as synchronization signals, reference signals, beam selection signals, or other control signals) from a transmitting device (e.g., network entity 105). For example, the receiving device may perform reception according to multiple reception directions by: receiving via different antenna subarrays; processing the received signal according to different antenna subarrays; receiving according to different sets of reception beamforming weights applied to signals received at multiple antenna elements of the antenna array (e.g., different directional listening weight sets); or processing the received signal according to different sets of reception beamforming weights applied to signals received at multiple antenna elements of the antenna array. Any of these operations may be referred to as “listening” according to different reception configurations or reception directions. In some examples, the receiving device may use a single reception configuration to receive along a single beam direction (e.g., when a data signal is received). A single receiver configuration can be aligned along a beam direction determined based on listening according to different receiver configuration directions (e.g., a beam direction determined to have the highest signal strength, highest signal-to-noise ratio (SNR), or other acceptable signal quality based on listening according to multiple beam directions).

[0088] The techniques described herein allow the affected UE 115 to perform CLI measurements via the frequency guard band. For example, the affected UE 115 may send capability information instructing it to support CLI measurements (e.g., CLI-RS measurements) via the guard band, and the intruding UE 115 may send capability information instructing it to support CLI-RS measurements via the guard band. The affected UE 115 may receive resource configuration from network entity 105 to perform CLI-RSSI measurements via guard band resources. In such examples, the affected UE 115 may perform CLI-RSSI measurements via the guard band resources; via both the guard band resources and uplink subband resources; or via the guard band resources, the uplink subband resources, and the downlink subband resources. Additionally or alternatively, the affected UE 115 may receive SRS resource configuration from network entity 105 to perform CLI-RSRP measurements via guard band resources. In such an example, the intruding UE 115 may receive SRS resource configuration from network entity 105 for transmitting SRS to the affected UE 115 via guard band resources (e.g., and uplink frequency subbands). Control signaling configuring the SRS resources may instruct the intruding UE 115 on a threshold transmit power, transmit beam limit, or both for transmitting SRS, which may reduce or limit interference caused by transmitting SRS via the guard band.

[0089] Figure 2 An example of a wireless communication system 200 supporting CLI reference signal transmission and measurement in an SBFD scenario according to one or more aspects of this disclosure is shown. The wireless communication system 200 may implement aspects of the wireless communication system 100, or may be implemented by aspects of the wireless communication system 100. For example, the wireless communication system 200 may include one or more UEs 115 (e.g., UE 115-a and UE 115-b) and one or more network entities 105 (e.g., network entity 105-a), which may be as reference... Figure 1 Examples of the corresponding devices described.

[0090] In some wireless communication systems, network entity 105-a may communicate with UE 115-a (e.g., the affected UE 115-a) and UE 115-b (e.g., the intruding UE 115-b) using SBFD communication (e.g., during one or more SBFD time periods, such as one or more SBFD slots or SBFD symbols). That is, network entity 105-a, UE 115-a, and UE 115-b may transmit downlink transmission 205 and uplink transmission 210 via shared time resources (e.g., via one or more downlink subbands 225 and one or more uplink subbands 230 that are at least partially overlapping in time). For example, network entity 105-a may transmit downlink transmission 205-a to UE 115-a via downlink subband 225-a or downlink subband 225-b in carrier bandwidth 220. Network entity 105-a can receive uplink transmission 210-a from UE 115-a via uplink subband 230 in carrier bandwidth 220. Similarly, network entity 105-a can transmit downlink transmission 205-b to UE 115-b via downlink subband 225-a or downlink subband 225-b, and can receive uplink transmission 210-b from UE 115-b via uplink subband 230. In such a system, to prevent interference between uplink subband 230 and downlink subband 225, downlink subband 225-a and downlink subband 225-b can be separated from uplink subband 230 by guard band 235-a and guard band 235-b, respectively.

[0091] UE 115-a and UE 115-b can determine the frequency location information of guard bands 235-a and 235-b in the SBFD symbols of carrier bandwidth 220 via control signaling (such as semi-static signaling, e.g., Radio Resource Control (RRC) signaling). In some examples, network entity 105-a can configure UE 115-a and UE 115-b using the frequency location configuration information of downlink subbands 225-a and 225-b (e.g., explicitly). In such examples, UE 115-a and UE 115-b can determine (e.g., implicitly derived) the frequency location configuration information of guard bands 235-a and 235-b as resource blocks (RBs) not within uplink subband 230, downlink subband 225-a, or downlink subband 225-b. In some examples, network entity 105-a may configure UE 115-a and UE 115-b using frequency location information of guard band 235-a and guard band 235-b (e.g., explicitly). In such examples, UE 115-a and UE 115-b may determine (e.g., implicitly derive) the frequency location information of downlink subband 225-a and downlink subband 225-b as RBs not within uplink subband 230, guard band 235-a, or guard band 235-b. UE 115-a and UE 115-b may accordingly avoid transmitting uplink transmission 210 or monitoring downlink transmission 205 via guard band 235-a and guard band 235-b. However, as described herein, UE 115-a and UE 115-b may perform measurements within guard band 235-a or guard band 235-b.

[0092] In some examples, UE 115-b (e.g., the intruding UE 115-b) can cause interference (e.g., CLI) at UE 115-a (e.g., the affected UE 115-a) performing SBFD communication by sending uplink transmission 210 or receiving downlink transmission 205 (e.g., which can be sensed by UE 115-a when monitoring downlink signaling from network entity 105-a). Therefore, the affected UE 115-a can perform CLI measurements (e.g., CLI-RSSI or CLI-RSRP measurements) via uplink subband 230, downlink subband 225-a, and / or downlink subband 225-b. For example, the affected UE 115-a can use any transmission from the intruding UE 115-b to perform RSSI-based CLI measurements via uplink subband 230, downlink subband 225-a, and / or downlink subband 225-b. Alternatively or additionally, the affected UE 115-a may use SRS 215 from the intruding UE 115-b to perform RSRP-based CLI measurements via uplink subband 230 (e.g., when uplink subband 230 is restricted to the active downlink BWP of UE 115-a and UE 115-b). The affected UE 115-a may report the CLI measurements to network entity 105-a, allowing network entity 105-a to adjust guard bands 235-a and 235-b to mitigate interference from the intruding UE 115-b. Alternatively or additionally, the affected UE 115-a may use CLI measurements to block CLI from the intruding UE 115-b.

[0093] In some examples, as described herein, UE 115 may support CLI-RS transmission and CLI measurements via one or more guard bands 235. For example, the affected UE 115-a may perform CLI measurements via frequency guard band 235-a and / or frequency guard band 235-b (e.g., when frequency guard band 235-a and frequency guard band 235-b are confined within the active downlink BWP of UE 115-a and UE 115-b). The affected UE 115-a may perform guard band CLI measurements to report more fine-grained CLIs to network entity 105-a (e.g., enabling network entity 105-a to more accurately determine the effective size of guard band 235-a and guard band 235-b). In other words, in some examples (e.g., in cases where the obstructed UE 115-a requests the size and / or frequency resources of guard bands 235-a and 235-b), CLI measurement information may be used by network entity 105-a to adjust the size and / or frequency resources of guard bands 235-a and 235-b for each UE 115 communicating with network entity 105-a (e.g., if the CLI measurement is relatively low or less than a threshold, the network may reduce the size of guard band 235; or if the CLI measurement is relatively high or exceeds a threshold, the network may increase the size of guard band 235) or to adjust the transmission parameters and frequency resources of the obstructing UE 115-b. Additionally or alternatively, guard band CLI measurements may allow the obstructed UE 115-a to more effectively block CLI signals from the obstructing UE 115-b. Guardband CLI measurements can additionally allow for more efficient use of frequency resources (e.g., by using resources in the spectrum that may not be used for uplink transmit 210 or downlink transmit 205).

[0094] In some cases, if the affected UE 115-a performs CLI measurements via guard bands 235-a and 235-b, interference may increase at network entity 105-a or at other UEs 115 communicating with network entity 105-a due to the reduced unused frequency resources in carrier bandwidth 220. That is, network entity 105-a may experience increased interference when receiving uplink transmissions 210 due to the reduced spacing between uplink and downlink resources. Additionally, guard band CLI measurements may increase CLI between the affected UE 115-a and other UEs 115 receiving downlink transmissions from network entity 105-a due to the reduced RB spacing.

[0095] Therefore, the techniques described herein allow the disrupted UE 115-a to perform CLI measurements via guard bands 235-a and 235-b. For example, the disrupted UE 115-a may receive resource configuration from network entity 105-a to perform CLI-RSSI measurements via guard band resources. The resource configuration may additionally allow the disrupted UE 115-a to perform CLI-RSSI measurements via uplink resources, downlink resources, or some or all of both. That is, the disrupted UE 115-a may perform CLI-RSSI measurements via guard bands 235-a and 235-b; via guard bands 235-a, 235-b, and uplink subband 230; or via guard bands 235-b, 235-a, 235-b, uplink subband 230, downlink subband 225-a, and downlink subband 225-b, as referenced. Figure 3 A more detailed description.

[0096] Additionally or alternatively, the compromised UE 115-a may receive resource configuration from network entity 105-a to perform CLI-RSRP measurements via guard band resources. The resource configuration may additionally allow the compromised UE 115-a to perform CLI-RSRP measurements via some or all of the uplink resources. That is, the compromised UE 115-a may perform CLI-RSRP measurements via guard band 235-a and guard band 235-b, or via guard band 235-a, guard band 235-b, and uplink subband 230. In such an example, the intruding UE 115-b may receive SRS resource configuration from network entity 105-a for sending SRS 215 to the compromised UE 115-a via guard band resources (e.g., and uplink resources). Control signaling for configuring SRS resources can instruct the intruding UE 115 on the threshold transmit power, transmit beam, or both of its SRS 215 transmission, which can reduce or limit interference caused by transmitting SRS 215 via guard band 235-a and guard band 235-b.

[0097] Network entity 105-a may send resource configurations based on capability messages received from both the disrupted UE 115-a and the intruding UE 115-b. For example, the disrupted UE 115-a may send a capability message indicating its ability to perform CLI measurements (e.g., CLI-RSSI measurement, CLI-RSRP measurement, or both) via guard band resources. The intruding UE 115-b may send a capability message indicating its ability to transmit reference signals (e.g., SRS) via guard band resources.

[0098] Figure 3An example of resource diagram 300 supporting CLI reference signal transmission and measurement in an SBFD scenario according to one or more aspects of this disclosure is shown. Resource diagram 300 may implement or be implemented by aspects of wireless communication system 100 or wireless communication system 200. For example, UE 115 (e.g., the disturbed UE 115 and / or the intruding UE 115) and network entity 105 (which may be as reference) Figure 1 (The example of the corresponding device described) can communicate according to resource diagram 300.

[0099] In some implementations, network entity 105 may configure the affected UE 115 using CLI measurement scenarios 305 (such as CLI measurement scenario 305-a, CLI measurement scenario 305-b, or CLI measurement scenario 305-c) for performing guardband CLI-RSSI measurements. For example, network entity 105 may utilize CLI measurement resources 325 in guardband resources 320 to configure the affected UE 115 for performing CLI-RSSI measurements. In some examples, network entity 105 may utilize CLI measurement resources 325 in guardband resources 320 to (e.g., exclusively) configure the affected UE 115, as illustrated with reference to CLI measurement scenario 305-a. In some examples, network entity 105-a may utilize CLI measurement resources 325 in both guardband resources 320 and uplink resources 315 to configure the affected UE 115, as illustrated with reference to CLI measurement scenario 305-b. In some examples, network entity 105-a may configure the disturbed UE 115 using CLI measurement resources 325 in guard band resources 320, uplink resources 315, and downlink resources 310, as illustrated in CLI measurement scenario 305-c. When CLI-RSSI measurement is configured in the guard band, the disturbed UE 115 may not be expected (e.g., may not be configured to) measure CLI-RSRP in the guard band. Similarly, both the disturbed UE 115 and the intruding UE 115 may not be configured with SRS resources in the guard band (e.g., SRS resources overlapping with the guard band or SRS resources explicitly configured in the guard band). That is, the network can avoid configuring SRS resources in the guard band because UE 115 can measure RSSI in the guard band (e.g., RSRP does not need to be measured via SRS in the guard band).

[0100] In some examples, the compromised UE 115 may perform CLI-RSRP measurements in addition to CLI-RSSI measurements via CLI measurement resource 325. In some examples, the compromised UE 115 may avoid performing CLI-RSRP measurements via CLI measurement resources. That is, the compromised UE 115 may not expect to receive SRS (e.g., and thus perform CLI-RSRP measurements) from the intruding UE 115 via guard band resource 320 or via resources overlapping with guard band resource 320 (e.g., in resources that partially or completely overlap with guard band resource 320 or in resources explicitly configured in guard band resource 320) from network entity 105. In such examples, the intruding UE 115 may send signaling via uplink resource 315 (e.g., instead of guard band resource 320). The affected UE 115 can perform CLI-RSSI measurements on signal leakage via guard band resources 320 (e.g., uplink resources 315 and / or downlink resources 310).

[0101] In some examples, the affected UE 115 may send a capability message to network entity 105 indicating the capability of the affected UE 115 to perform CLI measurements (e.g., CLI-RSSI measurement, CLI-RSRP measurement, or both) via guard band resource 320. For example, the capability message may indicate whether the affected UE 115 has a sub-band frequency filter (e.g., a strict filter or a notch filter) that prevents the affected UE 115 from measuring or receiving reference signals via guard band resource 320.

[0102] In some implementations, network entity 105 may configure the disturbed UE 115 using CLI measurement scenario 305 (such as CLI measurement scenario 305-a or CLI measurement scenario 305-b) for performing guard band CLI-RSRP measurements. For example, network entity 105 may utilize CLI measurement resource 325 (e.g., SRS resource) in guard band resource 320 to configure the disturbed UE 115 for performing CLI-RSRP measurements on SRS from the intruding UE 115. In some examples, network entity 105 may utilize CLI measurement resource 325 in guard band resource 320 in active downlink BWP to (e.g., exclusively) configure the disturbed UE 115, as illustrated in CLI measurement scenario 305-a. In some examples, network entity 105-a may configure the disturbed UE 115 using CLI measurement resources 325 in guard band resources 320 and uplink resources 315 in the active downlink BWP, as illustrated in CLI measurement scenario 305-b. In some examples, network entity 105-a may configure the disturbed UE 115 using CLI measurement resources 325 in uplink resources 315. In some examples, the disturbed UE 115 may perform CLI-RSSI measurements in addition to CLI-RSRP measurements via CLI measurement resources 325.

[0103] The affected UE 115 may perform SRS-RSRP measurements or CLI-RSSI measurements across frequency bands (e.g., in wideband resources) or within a portion of a frequency band (e.g., in subband resources). For example, UE 115 may perform wideband or subband measurements. In some examples, the affected UE 115 may send a capability message to network entity 105 indicating the capability of the affected UE 115 to perform CLI measurements (e.g., CLI-RSSI measurements, CLI-RSRP measurements, or both) via guard band resources 320. For example, the capability message may indicate whether the affected UE 115 has a subband frequency filter (e.g., a strict filter or a notch filter) that prevents the affected UE 115 from measuring or receiving reference signals via guard band resources 320. Network entity 105 may configure the affected UE 115 to utilize SRS resources based at least in part on this capability.

[0104] In some specific implementations, network entity 105 may configure the intruding UE 115 (e.g., SBFD-aware UE 115) using CLI measurement scenarios 305 (such as CLI measurement scenario 305-a or CLI measurement scenario 305-b) for performing SRS transmissions to the affected UE 115 (e.g., UE 115 may be configured using an SRS resource set). For example, network entity 105 may configure the intruding UE 115 to transmit SRS via CLI measurement resource 325 in guard band resource 320 (e.g., enabling the affected UE 115 to perform guard band CLI-RSRP measurements).

[0105] In some aspects, network entity 105 may configure the intruding UE 115 (e.g., exclusively) to transmit SRS in CLI measurement resource 325 within guard band resources 320 of the active downlink BWP, as illustrated in CLI measurement scenario 305-a. For example, network entity 105 may configure the intruding UE 115 to transmit SRS in one guard band or in two guard bands. In some examples (e.g., where frequency hopping is disabled), each guard band resource 320 may be configured as a separate (e.g., single) SRS resource, each associated with the same set of SRS resources. In some examples (e.g., where frequency hopping is enabled), two guard band resources 320 may be the same SRS resource (e.g., with frequency hopping). In such examples, frequency hopping may be enabled (e.g., effective) within guard band resources 320 (e.g., and disabled outside of guard band resources 320).

[0106] In some aspects, network entity 105-a may configure the intruding UE 115 to transmit SRS via CLI measurement resource 325 in guard band resource 320 and uplink resource 315 in active downlink BWP, as illustrated in CLI measurement scenario 305-b. In some examples, network entity 105-a may configure the intruding UE 115 to transmit SRS via uplink resource 315 through CLI measurement resource 325.

[0107] In such an implementation, the intruding UE 115 may send a capability message to network entity 105 indicating the intruding UE 115's capability to transmit SRS via guard band resource 320. For example, the capability message may indicate whether the intruding UE 115 has a sub-band transmission filter (e.g., to reduce emissions such as in-band transmission (IBE)) or whether the intruding UE 115 is configured to use guard band resource 320 for other purposes (e.g., to optimize the RF front-end (RFFE) of the intruding UE 115). In such an example, the intruding UE 115 may not transmit the reference signal via guard band resource 320.

[0108] Additionally or alternatively, network entity 105 may configure the intruding UE 115 (e.g., explicitly) to transmit SRS using a transmit power that may not exceed a threshold (e.g., a configured threshold). Additionally or alternatively, network entity 105 may configure the intruding UE 115 (e.g., explicitly) to transmit SRS using a specified beam (e.g., in a specified beam direction) or with transmit beam restrictions (e.g., indicating one or more beams that are preferred or permitted for CLI-RS (such as SRS) transmission or one or more beams that are not preferred or permitted for CLI-RS (such as SRS) transmission).

[0109] Network entity 105 may utilize one or more SRS resources to configure the UE. These SRS resources may be dedicated SRS resources for CLI measurements or subsets of SRS resources (e.g., location SRS resources or communication resources such as MIMO resources). In some examples, network entity 105 may configure the intruding UE 115 to transmit a first type of SRS that is specific to CLI measurements (e.g., CLI SRS configured with an SRS usage set such as SRS-CLI). This type of CLI SRS may not be received by network entity 105. In some examples, network entity 105 may configure the intruding UE 115 to transmit a second type of SRS, which may be a subset of one or more SRS resources (e.g., reused or transferred SRS resources), such as communication SRS configured with an SRS usage set such as SRS-MIMO (e.g., codebook-based, non-codebook-based, antenna switching, or beam management SRS) or location SRS configured with an SRS usage set such as SRS-POS. In such an example, network entity 105 may configure the intruding UE 115 to send a second type of SRS and may indicate one or more SRSs (e.g., one or more SRSs in one set of SRSs) for the intruding UE 115 to send as CLI-RS.

[0110] In some examples, the intruding UE 115 may generate SRS according to a sequence defined in a rule (e.g., a rule defined by a wireless communication standard). For example, the intruding UE may generate multiples of 6 SRS (e.g., without SRS truncation).

[0111] In some examples, the intruding UE 115 may not be configured (e.g., may not be expected) to transmit uplink signaling via frequency resources other than uplink resource 315. In such examples, the intruding UE 115 may transmit SRS for CLI measurements via frequency resources other than uplink resource 315.

[0112] Figure 4 An example of a process flow 400 supporting CLI reference signal transmission and measurement in an SBFD scenario according to one or more aspects of this disclosure is shown. Process flow 400 may implement or be implemented by aspects of wireless communication system 100, wireless communication system 200, or resource map 300. For example, process flow 400 may include UE 115 (e.g., UE 115-c and UE 115-d) and network entity 105 (e.g., network entity 105-b), which may be as reference... Figure 1 Examples of the corresponding devices described.

[0113] In the following description of process flow 400, operations between UE115-c, UE115-d, and network entity 105-b may be sent in a different order than the example order shown. Some operations may also be omitted from process flow 400, and other operations may be added to process flow 400. Furthermore, although some operations or signaling are shown to occur at different times for discussion purposes, these operations may actually occur simultaneously.

[0114] At 405, UE 115-c may send a capability message to network entity 105-b that includes CLI measurement capability information. For example, the capability information may indicate UE 115-c's ability to perform CLI measurements (e.g., CLI-RSSI measurements, CLI-RSRP measurements, or both) via a guard band located between uplink and downlink subbands during the time period allocated for SBFD operation.

[0115] At 410, UE 115-d may send a capability message including CLI-RS capability information to network entity 105-b. For example, the capability information may indicate UE 115-d's ability to send CLI-RS (e.g., SRS) in the guard band between the uplink subband and the downlink subband during the time period allocated for SBFD operation.

[0116] At 415, network entity 105-b may send control signaling to UE 115-c instructing one or more resources for measuring CLI (e.g., from UE 115-d). One or more resources may overlap with the guard band (e.g., partially or completely). For example, one or more resources may completely overlap with the guard band, as referenced... Figure 3The CLI measurement scenario 305-a described herein may partially overlap with the guard band, as described in CLI measurement scenario 305-b or CLI measurement scenario 305-c. In some examples, one or more resources may overlap with the uplink subband and / or downlink subband (e.g., partially or completely overlap), as described in [reference to...]. Figure 3 The CLI measurement scenarios 305-b and 305-c are described in the literature. In some examples, one or more resources may not overlap with the uplink subband and / or downlink subband.

[0117] In some examples, control signaling may indicate one or more SRS resources to UE 115-c (e.g., it may include one or more resources) based at least in part on capability information (e.g., CLI-RSRP measurement capabilities). For example, one or more SRS resources may correspond to a communication SRS configuration or a location SRS configuration. In some examples, one or more SRS resources may be allocated for one or more CLI measurements (e.g., by UE 115-c).

[0118] At 420, network entity 105-b may send control signaling to UE 115-d indicating one or more resources for transmitting CLI-RS. One or more resources may overlap with the guard band (e.g., partially or completely). For example, one or more resources may completely overlap with the guard band, as referenced... Figure 3 The CLI measurement scenario 305-a described herein may partially overlap with the guard band, as described in CLI measurement scenario 305-b. In some examples, one or more resources may overlap with the uplink subband (e.g., partially or completely), as described in [reference to...]. Figure 3 The CLI measurement scenario 305-b is described in the document. In some examples, one or more resources may not overlap with either the uplink or downlink subband. In some examples, control signaling may indicate a threshold transmit power, transmit beam limit, or both for CLI-RS.

[0119] Control signaling may indicate one or more SRS resources to UE 115-d (e.g., it may include one or more resources). In some examples, one or more SRS resources may correspond to a communication SRS configuration or a location SRS configuration. In some examples, one or more SRS resources may be allocated for one or more CLI measurements (e.g., by UE 115-c).

[0120] At 425, UE 115-c can perform one or more CLI measurements via one or more resources. For example, UE 115-c can perform one or more CLI-RSSI measurements via guard band resources. CLI-RSSI measurements can be measurements of signal leakage from one or more uplink transmissions (e.g., from UE 115-d).

[0121] At 430, UE 115-d may transmit CLI-RS to UE 115-c via one or more resources, at least in part, based on received control signaling. For example, UE 115-d may transmit SRS via SRS resources. UE 115-d may transmit CLI-RS based on threshold transmit power, transmit beam limiting, or both.

[0122] At 435, UE 115-c can monitor one or more CLI-RS (e.g., SRS) from UE 115-d. UE 115-c can perform one or more CLI measurements via one or more resources. For example, UE 115-c can perform one or more CLI-RSRP measurements on CLI-RS via at least the protection band resource.

[0123] At 440, UE 115-c can send CLI measurement reports to network entity 105-b. For example, UE 115-c can send reports of CLI-RSSI measurements, CLI-RSRP measurements, or both.

[0124] Figure 5 A block diagram 500 of a device 505 supporting CLI reference signal transmission and measurement in an SBFD scenario according to one or more aspects of this disclosure is shown. Device 505 may be an example of various aspects of UE 115 as described herein. Device 505 may include a receiver 510, a transmitter 515, and a communication manager 520. Device 505, or one or more components of device 505 (e.g., receiver 510, transmitter 515, and communication manager 520), may include at least one processor that may be coupled to at least one memory to support the described techniques. Each of these components may communicate with each other (e.g., via one or more buses).

[0125] Receiver 510 may provide components for receiving information (such as packets, user data, control information, or any combination thereof) associated with various information channels (e.g., control channels, data channels, and information channels related to CLI reference signal transmission and measurement in an SBFD scenario). The information may be transmitted to other components of device 505. Receiver 510 may utilize a single antenna or a collection of multiple antennas.

[0126] Transmitter 515 may provide components for transmitting signals generated by other components of device 505. For example, transmitter 515 may transmit information associated with various information channels (e.g., control channels, data channels, information channels related to CLI reference signal transmission and measurement in an SBFD scenario), such as packets, user data, control information, or any combination thereof. In some examples, transmitter 515 may be co-located with receiver 510 in a transceiver module. Transmitter 515 may utilize a single antenna or a collection of multiple antennas.

[0127] The communication manager 520, receiver 510, transmitter 515, or various combinations thereof, or various components thereof, may be examples of components used to perform various aspects of CLI reference signal transmission and measurement in the SBFD scenario described herein. For example, the communication manager 520, receiver 510, transmitter 515, or various combinations thereof, or components thereof, may be able to perform one or more of the functions described herein.

[0128] In some examples, the communication manager 520, receiver 510, transmitter 515, or various combinations or components thereof may be implemented in hardware (e.g., in communication management circuitry). The hardware may include at least one of a processor, digital signal processor (DSP), central processing unit (CPU), graphics processing unit (GPU), application-specific integrated circuit (ASIC), field-programmable gate array (FPGA) or other programmable logic device, microcontroller, discrete gate or transistor logic device, discrete hardware component, or any combination thereof, configured as or otherwise individually or collectively to support components for performing the functions described herein. In some examples, at least one processor and at least one memory coupled to at least one processor may be configured to perform one or more of the functions described herein (e.g., by executing instructions stored in at least one memory by at least one processor).

[0129] Additionally or alternatively, the communication manager 520, receiver 510, transmitter 515, or various combinations or components thereof may be implemented in code executed by at least one processor (e.g., as communication management software). If implemented in code executed by at least one processor, the functionality of the communication manager 520, receiver 510, transmitter 515, or various combinations or components thereof may be performed by a general-purpose processor, DSP, CPU, GPU, ASIC, FPGA, microcontroller, or any combination of these or other programmable logic devices (e.g., configured as or otherwise individually or jointly to support components for performing the functions described in this disclosure).

[0130] In some examples, the communication manager 520 may be configured to use or otherwise cooperate with the receiver 510, the transmitter 515, or both to perform various operations (e.g., receiving, acquiring, monitoring, outputting, transmitting). For example, the communication manager 520 may receive information from the receiver 510, transmit information to the transmitter 515, or integrate with the receiver 510, the transmitter 515, or both to acquire information, output information, or perform various other operations as described herein.

[0131] According to the examples disclosed herein, the communication manager 520 can support wireless communication at the UE. For example, the communication manager 520 can be configured or operable to support components for transmitting capability information instructing the UE to perform CLI measurements via a guard band located between an uplink subband and a downlink subband during at least one time period allocated for subband full-duplex operation. The communication manager 520 can be configured or operable to support components for receiving control signaling from at least a second UE, based on the transmitted capability information, indicating one or more resources for measuring CLI, the one or more resources at least partially overlapping the guard band in frequency. The communication manager 520 can be configured or operable to support components for performing one or more CLI measurements via one or more resources. The communication manager 520 can be configured or operable to support components for transmitting CLI measurement reports based on one or more CLI measurements.

[0132] Additionally or alternatively, according to the examples disclosed herein, the communication manager 520 may support wireless communication at the UE. For example, the communication manager 520 may be capable of, configured to, or operable to support components for transmitting capability information instructing the UE to transmit CLI-RS via a guard band located between an uplink subband and a downlink subband during at least one time period allocated for subband full-duplex operation. The communication manager 520 may be capable of, configured to, or operable to support components for receiving control signaling instructing one or more resources for transmitting CLI-RS based on the transmission capability information, the one or more resources at least partially overlapping the guard band in frequency. The communication manager 520 may be capable of, configured to, or operable to support components for transmitting CLI-RS via one or more resources based on receiving control signaling instructing one or more resources.

[0133] By including or configuring a communication manager 520 according to an example as described herein, device 505 (e.g., controlling receiver 510, transmitter 515, communication manager 520 or a combination thereof or at least one processor otherwise coupled to them) can support techniques for protecting CLI measurements and CLI-RS transmissions, which can utilize communication resources more efficiently.

[0134] Figure 6 A block diagram 600 of a device 605 supporting CLI reference signal transmission and measurement in an SBFD scenario according to one or more aspects of this disclosure is shown. Device 605 may be an example of aspects of device 505 or UE 115 as described herein. Device 605 may include a receiver 610, a transmitter 615, and a communication manager 620. Device 605, or one or more components of device 605 (e.g., receiver 610, transmitter 615, and communication manager 620), may also include at least one processor that may be coupled to at least one memory to support the described techniques. Each of these components may communicate with each other (e.g., via one or more buses).

[0135] Receiver 610 may provide components for receiving information (such as packets, user data, control information, or any combination thereof) associated with various information channels (e.g., control channels, data channels, and information channels related to CLI reference signal transmission and measurement in an SBFD scenario). The information may be transmitted to other components of device 605. Receiver 610 may utilize a single antenna or a collection of multiple antennas.

[0136] Transmitter 615 may provide components for transmitting signals generated by other components of device 605. For example, transmitter 615 may transmit information associated with various information channels (e.g., control channels, data channels, information channels related to CLI reference signal transmission and measurement in an SBFD scenario), such as packets, user data, control information, or any combination thereof. In some examples, transmitter 615 may be co-located with receiver 610 in a transceiver module. Transmitter 615 may utilize a single antenna or a collection of multiple antennas.

[0137] Device 605 or its various components may be examples of parts used to perform various aspects of CLI reference signal transmission and measurement in an SBFD scenario as described herein. For example, communication manager 620 may include CLI measurement capability manager 625, CLI measurement resource manager 630, CLI measurement manager 635, CLI measurement report manager 640, reference signal capability manager 645, reference signal resource manager 650, reference signal transmission manager 655, or any combination thereof. Communication manager 620 may be examples of aspects of communication manager 520 as described herein. In some examples, communication manager 620 or its various components may be configured to use or otherwise cooperate with receiver 610, transmitter 615, or both to perform various operations (e.g., receiving, acquiring, monitoring, outputting, transmitting). For example, communication manager 620 may receive information from receiver 610, transmit information to transmitter 615, or be integrated with receiver 610, transmitter 615, or both to acquire information, output information, or perform various other operations as described herein.

[0138] According to the examples disclosed herein, the communication manager 620 can support wireless communication at the UE. The CLI measurement capability manager 625 is capable of, configured to, or operable to support components for transmitting capability information instructing the UE to perform CLI measurements via a guard band located between an uplink subband and a downlink subband during at least one time period allocated for subband full-duplex operation. The CLI measurement resource manager 630 is capable of, configured to, or operable to support components for receiving control signaling from at least a second UE, based on transmitted capability information, indicating one or more resources for measuring CLI, the one or more resources at least partially overlapping the guard band in frequency. The CLI measurement manager 635 is capable of, configured to, or operable to support components for performing one or more CLI measurements via one or more resources. The CLI measurement report manager 640 is capable of, configured to, or operable to support components for transmitting CLI measurement reports based on one or more CLI measurements.

[0139] Additionally or alternatively, according to the examples disclosed herein, the communication manager 620 may support wireless communication at the UE. The reference signal capability manager 645 is capable of, configured to, or operable to support components for transmitting capability information instructing the UE to transmit CLI-RS via a guard band located between an uplink subband and a downlink subband during at least one time period allocated for subband full-duplex operation. The reference signal resource manager 650 is capable of, configured to, or operable to support components for receiving control signaling instructing one or more resources for transmitting CLI-RS based on transmission capability information, the one or more resources at least partially overlapping the guard band in frequency. The reference signal transmission manager 655 is capable of, configured to, or operable to support components for transmitting CLI-RS via one or more resources based on received control signaling instructing one or more resources.

[0140] Figure 7 A block diagram 700 of a communication manager 720 supporting CLI reference signal transmission and measurement in an SBFD scenario according to one or more aspects of this disclosure is shown. The communication manager 720 may be an example of aspects of the communication manager 520, communication manager 620, or both as described herein. The communication manager 720 or its various components may be examples of components for performing various aspects of CLI reference signal transmission and measurement in an SBFD scenario as described herein. For example, the communication manager 720 may include a CLI measurement capability manager 725, a CLI measurement resource manager 730, a CLI measurement manager 735, a CLI measurement report manager 740, a reference signal capability manager 745, a reference signal resource manager 750, a reference signal transmission manager 755, an SRS resource manager 760, an SRS monitoring manager 765, an SRS manager 770, or any combination thereof. Each of these components or components in its sub-components (e.g., one or more processors, one or more memories) may communicate directly or indirectly with each other (e.g., via one or more buses).

[0141] According to the examples disclosed herein, the communication manager 720 can support wireless communication at the UE. The CLI measurement capability manager 725 is capable of, configured to, or operable to support components for transmitting capability information instructing the UE to perform CLI measurements via a guard band located between an uplink subband and a downlink subband during at least one time period allocated for subband full-duplex operation. The CLI measurement resource manager 730 is capable of, configured to, or operable to support components for receiving control signaling from at least a second UE, based on transmitted capability information, indicating one or more resources for measuring CLI, the one or more resources at least partially overlapping the guard band in frequency. The CLI measurement manager 735 is capable of, configured to, or operable to support components for performing one or more CLI measurements via one or more resources. The CLI measurement report manager 740 is capable of, configured to, or operable to support components for transmitting CLI measurement reports based on one or more CLI measurements.

[0142] In some examples, the CLI Measurement Resource Manager 730 is capable of, configured to, or operable to support components for receiving indications via control signaling that one or more resources at least partially overlap with an uplink subband, a downlink subband, or both.

[0143] In some examples, the CLI Measurement Resource Manager 730 is capable of, configured to, or operable to support components for receiving, via control signaling, an indication that one or more resources do not overlap with an uplink subband or downlink subband.

[0144] In some examples, in order to support the execution of one or more CLI measurements, the CLI Measurement Manager 735 is capable of, configured to, or operable to support components for measuring CLI received signal strength indicators via one or more resources based on capabilities.

[0145] In some examples, the SRS resource manager 760 is capable of, configured to, or operable to support components for receiving indications of a set of multiple SRS resources, including one or more resources, via control signaling based on capabilities. In some examples, the SRS monitoring manager 765 is capable of, configured to, or operable to support components for monitoring one or more SRSs from at least a second UE via a set of multiple SRS resources. In some examples, the CLI measurement manager 735 is capable of, configured to, or operable to support components for measuring CLI reference signal received power via one or more resources based on monitoring.

[0146] In some examples, a set of multiple SRS resources corresponds to a communication SRS configuration or a location SRS configuration, and the one or more resources comprise a subset of that set of multiple SRS resources.

[0147] In some examples, a collection of multiple SRS resources is allocated for one or more CLI measurements.

[0148] Additionally or alternatively, according to the examples disclosed herein, the communication manager 720 may support wireless communication at the UE. The reference signal capability manager 745 is capable of, configured to, or operable to support components for transmitting capability information instructing the UE to transmit CLI-RS via a guard band located between an uplink subband and a downlink subband during at least one time period allocated for subband full-duplex operation. The reference signal resource manager 750 is capable of, configured to, or operable to support components for receiving control signaling instructing one or more resources for transmitting CLI-RS based on transmission capability information, the one or more resources at least partially overlapping the guard band in frequency. The reference signal transmission manager 755 is capable of, configured to, or operable to support components for transmitting CLI-RS via one or more resources based on received control signaling instructing one or more resources.

[0149] In some examples, the reference signal transmission manager 755 is capable of, configured to, or operable to support components for receiving indications of threshold transmit power, transmit beam limit, or both via control signaling, wherein transmitting CLI-RS includes transmitting CLI-RS based on the threshold transmit power, via transmit beam, or both.

[0150] In some examples, the SRS manager 770 is capable of, configured to, or operable to support components for receiving instructions via control signaling on a set of multiple SRS resources, including one or more resources, wherein the CLI-RS includes the SRS.

[0151] In some examples, a set of multiple SRS resources corresponds to a communication SRS configuration or a location SRS configuration, and the one or more resources comprise a subset of that set of multiple SRS resources.

[0152] In some examples, a collection of multiple SRS resources is allocated for CLI measurements.

[0153] In some examples, the reference signal resource manager 750 is capable of, configured to, or operable to support components for receiving indications via control signaling that one or more resources at least partially overlap with an uplink subband.

[0154] In some examples, the reference signal resource manager 750 is capable of, configured to, or operable to support components for receiving, via control signaling, an indication that one or more resources do not overlap with an uplink subband or downlink subband.

[0155] Figure 8A diagram of a system 800 including device 805 supporting CLI reference signal transmission and measurement in an SBFD scenario, according to one or more aspects of this disclosure, is shown. Device 805 may be an example of device 505, device 605, or UE 115 as described herein, or may include components thereof. Device 805 may communicate with one or more network entities 105, one or more UEs 115, or any combination thereof (e.g., wirelessly). Device 805 may include components for bidirectional voice and data communication, including components for transmitting and receiving communications, such as a communication manager 820, an input / output (I / O) controller 810, a transceiver 815, an antenna 825, a memory 830, a code 835, and a processor 840. These components may communicate electronically or be otherwise coupled (e.g., operative ground, communication ground, functional ground, electronic ground, electrical ground) via one or more buses (e.g., bus 845).

[0156] I / O controller 810 can manage the input and output signals of device 805. I / O controller 810 can also manage peripheral devices not integrated into device 805. In some cases, I / O controller 810 can represent a physical connection or port to an external peripheral device. In some cases, I / O controller 810 can utilize an operating system, such as iOS. ® ANDROID ® MS-DOS ® MS-WINDOWS ® OS / 2 ® UNIX ® LINUX ® Alternatively, the I / O controller 810 may represent or interact with a modem, keyboard, mouse, touchscreen, or similar device. In some cases, the I / O controller 810 may be implemented as part of a processor, such as processor 840. In some cases, a user may interact with device 805 via the I / O controller 810 or via hardware components controlled by the I / O controller 810.

[0157] In some cases, device 805 may include a single antenna 825. However, in other cases, device 805 may have more than one antenna 825, which may be capable of concurrently transmitting or receiving multiple wireless transmissions. Transceiver 815 may communicate bidirectionally via one or more antennas 825 as described herein, or via a wired or wireless link. For example, transceiver 815 may represent a wireless transceiver and may communicate bidirectionally with another wireless transceiver. Transceiver 815 may also include a modem for: modulating packets; providing the modulated packets to one or more antennas 825 for transmission; and demodulating packets received from one or more antennas 825. Transceiver 815, or transceiver 815 and one or more antennas 825, may be an example of transmitter 515, transmitter 615, receiver 510, receiver 610, or any combination thereof or components thereof as described herein.

[0158] Memory 830 may include random access memory (RAM) and read-only memory (ROM). Memory 830 may store computer-readable, computer-executable code 835, including instructions that, when executed by processor 840, cause device 805 to perform the various functions described herein. Code 835 may be stored in a non-transitory computer-readable medium, such as system memory or another type of memory. In some cases, code 835 may not be directly executable by processor 840, but may (e.g., when compiled and executed) cause the computer to perform the functions described herein. In some cases, among other things, memory 830 may also include a basic I / O system (BIOS) that controls basic hardware or software operations, such as interaction with peripheral components or devices.

[0159] Processor 840 may include intelligent hardware devices (e.g., general-purpose processors, DSPs, CPUs, GPUs, microcontrollers, ASICs, FPGAs, programmable logic devices, discrete gate or transistor logic components, discrete hardware components, or any combination thereof). In some cases, processor 840 may be configured to use a memory controller to operate a memory array. In other cases, the memory controller may be integrated into processor 840. Processor 840 may be configured to execute computer-readable instructions stored in memory (e.g., memory 830) to cause device 805 to perform various functions (e.g., various functions or tasks supporting CLI reference signal transmission and measurement in an SBFD scenario). For example, device 805 or components of device 805 may include processor 840 and memory 830 coupled to or coupled to processor 840, processor 840 and memory 830 being configured to perform the various functions described herein.

[0160] According to the examples disclosed herein, the communication manager 820 can support wireless communication at the UE. For example, the communication manager 820 can be configured or operable to support components for transmitting capability information instructing the UE to perform CLI measurements via a guard band located between an uplink subband and a downlink subband during at least one time period allocated for subband full-duplex operation. The communication manager 820 can be configured or operable to support components for receiving control signaling from at least a second UE, based on the transmitted capability information, indicating one or more resources for measuring CLI, the one or more resources at least partially overlapping the guard band in frequency. The communication manager 820 can be configured or operable to support components for performing one or more CLI measurements via one or more resources. The communication manager 820 can be configured or operable to support components for transmitting CLI measurement reports based on one or more CLI measurements.

[0161] Additionally or alternatively, according to the examples disclosed herein, the communication manager 820 may support wireless communication at the UE. For example, the communication manager 820 may be capable of, configured to, or operable to support components for transmitting capability information instructing the UE to transmit CLI-RS via a guard band located between an uplink subband and a downlink subband during at least one time period allocated for subband full-duplex operation. The communication manager 820 may be capable of, configured to, or operable to support components for receiving control signaling instructing one or more resources for transmitting CLI-RS based on the transmission capability information, the one or more resources at least partially overlapping the guard band in frequency. The communication manager 820 may be capable of, configured to, or operable to support components for transmitting CLI-RS via one or more resources based on receiving control signaling instructing one or more resources.

[0162] By including or configuring a communication manager 820 according to an example as described herein, device 805 can support techniques for protecting CLI measurements and CLI-RS transmissions, which can improve communication reliability and utilize communication resources more efficiently.

[0163] In some examples, the communication manager 820 may be configured to use or otherwise cooperate with transceiver 815, one or more antennas 825, or any combination thereof to perform various operations (e.g., receiving, monitoring, transmitting). Although the communication manager 820 is illustrated as a separate component, in some examples, one or more functions described with reference to the communication manager 820 may be supported or performed by processor 840, memory 830, code 835, or any combination thereof. For example, code 835 may include instructions that can be executed by processor 840 to cause device 805 to perform various aspects of CLI reference signal transmission and measurement in the SBFD scenario described herein, or processor 840 and memory 830 may be otherwise configured to perform or support such operations.

[0164] Figure 9 A block diagram 900 of a device 905 supporting CLI reference signal transmission and measurement in an SBFD scenario according to one or more aspects of this disclosure is shown. Device 905 may be an example of aspects of network entity 105 as described herein. Device 905 may include a receiver 910, a transmitter 915, and a communication manager 920. Device 905, or one or more components of device 905 (e.g., receiver 910, transmitter 915, and communication manager 920), may include at least one processor that may be coupled to at least one memory to support the described techniques. Each of these components may communicate with each other (e.g., via one or more buses).

[0165] Receiver 910 may provide components for acquiring (e.g., receiving, determining, identifying) information (such as user data, control information, or any combination thereof (e.g., I / Q samples, symbols, packets, protocol data units, service data units)) associated with various channels (e.g., control channels, data channels, information channels, channels associated with a protocol stack). The information may be passed to other components of device 905. In some examples, receiver 910 may support acquiring information by receiving signals via one or more antennas. Additionally or alternatively, receiver 910 may support acquiring information by receiving signals via one or more wired (e.g., electrical, fiber optic) interfaces, wireless interfaces, or any combination thereof.

[0166] Transmitter 915 may provide components for outputting (e.g., transmitting, providing, conveying, transmitting) information generated by other components of device 905. For example, transmitter 915 may output information associated with various channels (e.g., control channels, data channels, information channels, channels associated with a protocol stack), such as user data, control information, or any combination thereof (e.g., I / Q samples, symbols, packets, protocol data units, service data units). In some examples, transmitter 915 may support outputting information by transmitting signals via one or more antennas. Additionally or alternatively, transmitter 915 may support outputting information by transmitting signals via one or more wired (e.g., electrical, fiber optic) interfaces, wireless interfaces, or any combination thereof. In some examples, transmitter 915 and receiver 910 may be co-located in a transceiver, which may include or be coupled to a modem.

[0167] The communication manager 920, receiver 910, transmitter 915, or various combinations thereof, or various components thereof, may be examples of components used to perform various aspects of CLI reference signal transmission and measurement in the SBFD scenario described herein. For example, the communication manager 920, receiver 910, transmitter 915, or various combinations thereof, or components thereof, may be able to perform one or more of the functions described herein.

[0168] In some examples, the communication manager 920, receiver 910, transmitter 915, or various combinations or components thereof may be implemented in hardware (e.g., in communication management circuitry). The hardware may include at least one of a processor, DSP, CPU, GPU, ASIC, FPGA, or other programmable logic device, microcontroller, discrete gate or transistor logic device, discrete hardware component, or any combination thereof, configured as or otherwise individually or collectively to support components for performing the functions described herein. In some examples, at least one processor and at least one memory coupled to at least one processor may be configured to perform one or more of the functions described herein (e.g., by executing instructions stored in at least one memory by at least one processor).

[0169] Additionally or alternatively, the communication manager 920, receiver 910, transmitter 915, or various combinations or components thereof may be implemented in code executed by at least one processor (e.g., as communication management software). If implemented in code executed by at least one processor, the functionality of the communication manager 920, receiver 910, transmitter 915, or various combinations or components thereof may be performed by a general-purpose processor, DSP, CPU, GPU, ASIC, FPGA, microcontroller, or any combination of these or other programmable logic devices (e.g., configured as or otherwise individually or jointly to support components for performing the functions described in this disclosure).

[0170] In some examples, the communication manager 920 may be configured to use or otherwise cooperate with the receiver 910, the transmitter 915, or both to perform various operations (e.g., receiving, acquiring, monitoring, outputting, transmitting). For example, the communication manager 920 may receive information from the receiver 910, transmit information to the transmitter 915, or integrate with the receiver 910, the transmitter 915, or both to acquire information, output information, or perform various other operations as described herein.

[0171] According to the examples disclosed herein, the communication manager 920 may support wireless communication at network entities. For example, the communication manager 920 may be capable of, configured to, or operable to support components for receiving capability information from a set of multiple user equipment (UEs), the capability information indicating the capability to support CLI measurements via a guard band located between an uplink subband and a downlink subband during at least one time period allocated for subband full-duplex operation. The communication manager 920 may be capable of, configured to, or operable to support components for transmitting control signaling indicative of one or more resources for CLI measurements based on received capability information, the one or more resources at least partially overlapping the guard band in frequency. The communication manager 920 may be capable of, configured to, or operable to support components for receiving CLI measurement reports from at least a first UE in a set of multiple UEs.

[0172] By including or configuring a communication manager 920 according to an example as described herein, device 905 (e.g., controlling receiver 910, transmitter 915, communication manager 920 or a combination thereof or at least one processor otherwise coupled to them) can support techniques for protecting CLI measurements and CLI-RS transmissions, which can utilize communication resources more efficiently.

[0173] Figure 10A block diagram 1000 of a device 1005 supporting CLI reference signal transmission and measurement in an SBFD scenario according to one or more aspects of this disclosure is shown. Device 1005 may be an example of aspects of device 905 or network entity 105 as described herein. Device 1005 may include receiver 1010, transmitter 1015, and communication manager 1020. Device 1005, or one or more components of device 1005 (e.g., receiver 1010, transmitter 1015, and communication manager 1020), may also include at least one processor that may be coupled to at least one memory to support the described techniques. Each of these components may communicate with each other (e.g., via one or more buses).

[0174] Receiver 1010 may provide components for acquiring (e.g., receiving, determining, identifying) information (such as user data, control information, or any combination thereof (e.g., I / Q samples, symbols, packets, protocol data units, service data units)) associated with various channels (e.g., control channels, data channels, information channels, channels associated with a protocol stack). The information may be passed to other components of device 1005. In some examples, receiver 1010 may support acquiring information by receiving signals via one or more antennas. Additionally or alternatively, receiver 1010 may support acquiring information by receiving signals via one or more wired (e.g., electrical, fiber optic) interfaces, wireless interfaces, or any combination thereof.

[0175] Transmitter 1015 may provide components for outputting (e.g., transmitting, providing, conveying, transmitting) information generated by other components of device 1005. For example, transmitter 1015 may output information associated with various channels (e.g., control channels, data channels, information channels, channels associated with a protocol stack), such as user data, control information, or any combination thereof (e.g., I / Q samples, symbols, packets, protocol data units, service data units). In some examples, transmitter 1015 may support outputting information by transmitting signals via one or more antennas. Additionally or alternatively, transmitter 1015 may support outputting information by transmitting signals via one or more wired (e.g., electrical, fiber optic) interfaces, wireless interfaces, or any combination thereof. In some examples, transmitter 1015 and receiver 1010 may be co-located in a transceiver, which may include or be coupled to a modem.

[0176] Device 1005 or its various components may be examples of parts used to perform various aspects of CLI reference signal transmission and measurement in an SBFD scenario as described herein. For example, communication manager 1020 may include a guard band capability component 1025, a CLI measurement resource component 1030, a CLI measurement reporting component 1035, or any combination thereof. Communication manager 1020 may be examples of aspects of communication manager 920 as described herein. In some examples, communication manager 1020 or its various components may be configured to use or otherwise cooperate with receiver 1010, transmitter 1015, or both to perform various operations (e.g., receiving, acquiring, monitoring, outputting, transmitting). For example, communication manager 1020 may receive information from receiver 1010, transmit information to transmitter 1015, or be integrated in combination with receiver 1010, transmitter 1015, or both to acquire information, output information, or perform various other operations as described herein.

[0177] According to the examples disclosed herein, the communication manager 1020 can support wireless communication at network entities. The guard band capability component 1025 is capable of, configured to, or operable to support components for receiving capability information from a set of multiple user equipment (UEs), the capability information indicating the capability to support CLI measurements via a guard band located between an uplink subband and a downlink subband during at least one time period allocated for subband full-duplex operation. The CLI measurement resource component 1030 is capable of, configured to, or operable to support components for transmitting control signaling indicative of one or more resources for CLI measurements based on received capability information, the one or more resources at least partially overlapping the guard band in frequency. The CLI measurement reporting component 1035 is capable of, configured to, or operable to support components for receiving CLI measurement reports from at least a first UE in a set of multiple UEs.

[0178] Figure 11A block diagram 1100 of a communication manager 1120 supporting CLI reference signal transmission and measurement in an SBFD scenario according to one or more aspects of this disclosure is shown. The communication manager 1120 may be an example of aspects of the communication manager 920, communication manager 1020, or both as described herein. The communication manager 1120 or its various components may be examples of components for performing various aspects of CLI reference signal transmission and measurement in an SBFD scenario as described herein. For example, the communication manager 1120 may include a guard band capability component 1125, a CLI measurement resource component 1130, a CLI measurement reporting component 1135, a guard band CLI measurement capability component 1140, a guard band CLI reference signal capability component 1145, a guard band CLI reference signal component 1150, or any combination thereof. Each of these components or components in its sub-components (e.g., one or more processors, one or more memories) may communicate directly or indirectly with each other (e.g., via one or more buses), and such communication may include communication within protocol layers of the protocol stack, communication associated with logical channels of the protocol stack (e.g., between protocol layers of the protocol stack, within devices, components, or virtualization components associated with network entity 105, between devices, components, or virtualization components associated with network entity 105), or any combination thereof.

[0179] According to the examples disclosed herein, the communication manager 1120 can support wireless communication at network entities. The guard band capability component 1125 is capable of, configured to, or operable to support components for receiving capability information from a set of multiple user equipment (UEs), the capability information indicating the capability to support CLI measurements via a guard band located between an uplink subband and a downlink subband during at least one time period allocated for subband full-duplex operation. The CLI measurement resource component 1130 is capable of, configured to, or operable to support components for transmitting control signaling indicating one or more resources for CLI measurements based on received capability information, the one or more resources at least partially overlapping the guard band in frequency. The CLI measurement reporting component 1135 is capable of, configured to, or operable to support components for receiving CLI measurement reports from at least a first UE in a set of multiple UEs.

[0180] In some examples, in order to support receiving capability information, the guard band CLI measurement capability component 1140 can be configured or operable to support components for receiving capability information from a first UE, the capability information including an indication that the first UE is capable of performing CLI measurements via the guard band.

[0181] In some examples, in order to support receive capability information, the guard band CLI reference signal capability component 1145 can be configured or operable to support components for receiving capability information from a second UE, the capability information including an indication that the second UE can transmit CLI-RS via the guard band.

[0182] In some examples, the guard band CLI reference signal component 1150 is capable of, configured to, or operable to support components for sending indications of threshold transmit power, transmit beam limits, or both to a second UE via control signaling based on capability information.

[0183] In some examples, CLI measurement resource component 1130 is capable of, configured to, or operable to support components for sending indications to a set of multiple SRS resources, including one or more resources, via control signaling.

[0184] In some examples, a set of multiple SRS resources corresponds to a communication SRS configuration or a location SRS configuration, and the one or more resources comprise a subset of that set of multiple SRS resources.

[0185] In some examples, a collection of multiple SRS resources is allocated for CLI measurements.

[0186] In some examples, CLI measurement resource component 1130 is capable of, configured to, or operable to support components for sending indications via control signaling that one or more resources at least partially overlap with uplink subbands.

[0187] In some examples, CLI measurement resource component 1130 is capable of, configured to, or operable to support components for sending indications via control signaling that one or more resources do not overlap with uplink or downlink subbands.

[0188] Figure 12A diagram of a system 1200 including device 1205 supporting CLI reference signal transmission and measurement in an SBFD scenario, according to one or more aspects of this disclosure, is shown. Device 1205 may be an example of device 905, device 1005, or network entity 105 as described herein, or may include components thereof. Device 1205 may communicate with one or more network entities 105, one or more UEs 115, or any combination thereof, and such communication may include communication via one or more wired interfaces, one or more wireless interfaces, or any combination thereof. Device 1205 may include components supporting output and acquisition of communication, such as a communication manager 1220, transceiver 1210, antenna 1215, memory 1225, code 1230, and processor 1235. These components may communicate electronically via one or more buses (e.g., bus 1240) or be otherwise coupled (e.g., operational ground, communication ground, functional ground, electronic ground, electrical ground).

[0189] Transceiver 1210 may support bidirectional communication via a wired link, a wireless link, or both, as described herein. In some examples, transceiver 1210 may include a wired transceiver and be capable of bidirectional communication with another wired transceiver. Additionally or alternatively, in some examples, transceiver 1210 may include a wireless transceiver and be capable of bidirectional communication with another wireless transceiver. In some examples, device 1205 may include one or more antennas 1215 that may be capable of (e.g., concurrently) transmitting or receiving wireless transmissions. Transceiver 1210 may also include a modem for modulating signals, providing modulated signals for transmission (e.g., via one or more antennas 1215, via a wired transmitter), receiving modulated signals (e.g., from one or more antennas 1215, from a wired receiver), and demodulating signals. In some embodiments, transceiver 1210 may include one or more interfaces, such as one or more interfaces coupled to one or more antennas 1215 configured to support various receive or acquire operations, or one or more interfaces coupled to one or more antennas 1215 configured to support various transmit or output operations, or combinations thereof. In some embodiments, transceiver 1210 may include one or more processor or memory components or be configured to couple to said one or more processor or memory components, said one or more processor or memory components being operable to perform or support operations based on received or acquired information or signals, or to generate information or other signals for transmission or other output, or any combination thereof. In some embodiments, transceiver 1210, or transceiver 1210 and one or more antennas 1215, or transceiver 1210 and one or more antennas 1215 and one or more processor or memory components (e.g., processor 1235 or memory 1225 or both) may be included in a chip or chip assembly mounted in device 1205. In some examples, the transceiver may be able to operate to support communication via one or more communication links (e.g., communication link 125, backhaul communication link 120, midhaul communication link 162, and fronthaul communication link 168).

[0190] Memory 1225 may include RAM and ROM. Memory 1225 may store computer-readable, computer-executable code 1230, including instructions that, when executed by processor 1235, cause device 1205 to perform the various functions described herein. Code 1230 may be stored in a non-transitory computer-readable medium, such as system memory or another type of memory. In some cases, code 1230 may not be directly executable by processor 1235, but may (e.g., when compiled and executed) cause the computer to perform the functions described herein. In some cases, memory 1225 may contain a BIOS, etc., which controls basic hardware or software operations, such as interaction with peripheral components or devices.

[0191] Processor 1235 may include intelligent hardware devices (e.g., general-purpose processors, DSPs, ASICs, CPUs, GPUs, FPGAs, microcontrollers, programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, or any combination thereof). In some cases, processor 1235 may be configured to use a memory controller to operate a memory array. In other cases, the memory controller may be integrated into processor 1235. Processor 1235 may be configured to execute computer-readable instructions stored in memory (e.g., memory 1225) to cause device 1205 to perform various functions (e.g., various functions or tasks supporting CLI reference signal transmission and measurement in an SBFD scenario). For example, device 1205 or components thereof may include processor 1235 and memory 1225 coupled to processor 1235, wherein processor 1235 and memory 1225 are configured to perform the various functions described herein. Processor 1235 may be an example of a cloud computing platform (e.g., one or more physical nodes and supporting software such as an operating system, virtual machine, or container instance) that can (e.g., by executing code 1230) host functions for performing the functions of device 1205. Processor 1235 may be any one or more suitable processors capable of executing scripts or instructions of one or more software programs stored in device 1205 (such as within memory 1225). In some specific implementations, processor 1235 may be a component of a processing system. A processing system can generally refer to a system or series of machines or components that receive input and process that input to produce a set of outputs that can be passed to, for example, other systems or components of device 1205. For example, the processing system of device 1205 may refer to a system that includes various other components or sub-components of device 1205 (such as processor 1235, or transceiver 1210, or communication manager 1220, or other components or combinations of components of device 1205). The processing system of device 1205 can interface with other components of device 1205 and can process information (such as inputs or signals) received from other components or output information to other components. For example, the chip or modem of device 1205 may include a processing system and one or more interfaces for outputting information or for receiving information, or both. One or more interfaces may be implemented as or otherwise include a first interface configured to output information and a second interface configured to receive information, or the same interface configured to both output and receive information, and other specific implementations. In some specific implementations, one or more interfaces may refer to an interface between the processing system of the chip or modem and a transmitter that enables device 1205 to transmit information output from the chip or modem.Additionally or alternatively, in some embodiments, one or more interfaces may refer to interfaces between the processing system of a chip or modem and the receiver that enable device 1205 to receive information or signal input and to transmit such information to the processing system. Those skilled in the art will readily recognize that a first interface may also receive information or signal input, and a second interface may also output information or signal output.

[0192] In some examples, bus 1240 may support communication at protocol layers of the protocol stack (e.g., within the protocol layer). In some examples, bus 1240 may support communication associated with logical channels of the protocol stack (e.g., between protocol layers of the protocol stack), which may include communication performed within components of device 1205, or communication performed between different components of device 1205 that may be co-located or located in different locations (e.g., where device 1205 may refer to a system in which one or more of communication manager 1220, transceiver 1210, memory 1225, code 1230, and processor 1235 may be located in one of the different components or partitioned between the different components).

[0193] In some examples, the communication manager 1220 can manage (e.g., via one or more wired or wireless backhaul links) various aspects of communication with the core network 130. For example, the communication manager 1220 can manage the delivery of data communications by client devices, such as one or more UEs 115. In some examples, the communication manager 1220 can manage communication with other network entities 105 and may include a controller or scheduler for coordinating with other network entities 105 to control communication with UE 115. In some examples, the communication manager 1220 may support an X2 interface within LTE / LTE-A wireless communication network technology to provide communication between network entities 105.

[0194] According to the examples disclosed herein, the communication manager 1220 may support wireless communication at network entities. For example, the communication manager 1220 may be capable of, configured to, or operable to support components for receiving capability information from a set of multiple user equipment (UEs), the capability information indicating the capability to support CLI measurements via a guard band located between an uplink subband and a downlink subband during at least one time period allocated for subband full-duplex operation. The communication manager 1220 may be capable of, configured to, or operable to support components for transmitting control signaling indicative of one or more resources for CLI measurements based on received capability information, the one or more resources at least partially overlapping the guard band in frequency. The communication manager 1220 may be capable of, configured to, or operable to support components for receiving CLI measurement reports from at least a first UE in a set of multiple UEs.

[0195] By including or configuring a communication manager 1220 according to an example as described herein, device 1205 can support techniques for protecting CLI measurements and CLI-RS transmissions, which can improve communication reliability and utilize communication resources more efficiently.

[0196] In some examples, the communication manager 1220 may be configured to use or otherwise coordinate with the transceiver 1210, one or more antennas 1215 (e.g., where applicable), or any combination thereof to perform various operations (e.g., receive, acquire, monitor, output, transmit). Although the communication manager 1220 is illustrated as a separate component, in some examples, one or more functions described with reference to the communication manager 1220 may be supported or performed by the transceiver 1210, processor 1235, memory 1225, code 1230, or any combination thereof. For example, code 1230 may include instructions that can be executed by the processor 1235 to cause the device 1205 to perform various aspects of CLI reference signal transmission and measurement in the SBFD scenario described herein, or the processor 1235 and memory 1225 may be otherwise configured to perform or support such operations.

[0197] Figure 13 A flowchart illustrating a method 1300 for transmitting and measuring CLI reference signals in a scenario supporting SBFD according to various aspects of this disclosure is shown. Operation of method 1300 can be implemented by a UE or its components as described herein. For example, operation of method 1300 can be implemented by a UE or its components as described herein. Figures 1 to 8 The UE 115 described herein is used to perform this function. In some examples, the UE can execute a set of instructions to control the functional elements of the UE to perform the described function. Additionally or alternatively, the UE may use dedicated hardware to perform aspects of the described function.

[0198] At 1305, the method may include: transmitting capability information indicating that the UE is capable of performing CLI measurements via a guard band located between the uplink subband and the downlink subband during at least one time period allocated for subband full-duplex operation. Operation of block 1305 may be performed according to examples as disclosed herein. In some examples, aspects of operation of 1305 may be provided by reference to... Figure 7 The CLI Measurement Capability Manager 725 is described to perform this.

[0199] At 1310, the method may include: receiving control signaling from at least a second UE, based on transmission capability information, indicating one or more resources for measuring CLI, the one or more resources at least partially overlapping the guard band in frequency. Operation of block 1310 may be performed according to examples as disclosed herein. In some examples, aspects of operation of 1310 may be provided by reference to [reference needed]. Figure 7The described CLI measurement resource manager 730 is used to execute.

[0200] At 1315, the method may include: performing one or more CLI measurements via one or more resources. The operation of block 1315 may be performed according to examples disclosed herein. In some examples, aspects of the operation of 1315 may be provided by reference to [reference needed]. Figure 7 The CLI Measurement Manager 735 described is used to execute this.

[0201] At 1320, the method may include: sending a CLI measurement report based on one or more CLI measurements. The operation of block 1320 may be performed according to examples as disclosed herein. In some examples, aspects of the operation of 1320 may be provided by reference to [reference needed]. Figure 7 The CLI Measurement Report Manager 740 described is used to perform this.

[0202] Figure 14 A flowchart illustrating a method 1400 for transmitting and measuring CLI reference signals in a scenario supporting SBFD according to various aspects of this disclosure is shown. Operation of method 1400 can be implemented by a UE or its components as described herein. For example, operation of method 1400 can be implemented by a UE or its components as described herein. Figures 1 to 8 The UE 115 described herein is used to perform this function. In some examples, the UE can execute a set of instructions to control the functional elements of the UE to perform the described function. Additionally or alternatively, the UE may use dedicated hardware to perform aspects of the described function.

[0203] At 1405, the method may include: transmitting capability information indicating that the UE is capable of performing CLI measurements via a guard band located between the uplink subband and the downlink subband during at least one time period allocated for subband full-duplex operation. The operation of block 1405 may be performed according to examples as disclosed herein. In some examples, aspects of the operation of 1405 may be provided by reference to... Figure 7 The CLI Measurement Capability Manager 725 is described to perform this.

[0204] At 1410, the method may include: receiving, based on transmission capability information, control signaling from at least a second UE indicating one or more resources for measuring CLI, the one or more resources at least partially overlapping the guard band in frequency. Operation of block 1410 may be performed according to examples as disclosed herein. In some examples, aspects of operation of 1410 may be derived from references... Figure 7 The described CLI measurement resource manager 730 is used to execute.

[0205] At 1415, the method may include: receiving via control signaling an indication that one or more resources at least partially overlap with an uplink subband, a downlink subband, or both. Operation of block 1415 may be performed according to examples as disclosed herein. In some examples, aspects of operation of 1415 may be provided by reference to [reference needed]. Figure 7 The described CLI measurement resource manager 730 is used to execute.

[0206] At 1420, the method may include performing one or more CLI measurements via one or more resources. The operation of block 1420 may be performed according to examples as disclosed herein. In some examples, aspects of the operation of 1420 may be provided by reference to [reference needed]. Figure 7 The CLI Measurement Manager 735 described is used to execute this.

[0207] At 1425, the method may include: sending a CLI measurement report based on one or more CLI measurements. The operation of block 1425 may be performed according to examples as disclosed herein. In some examples, aspects of the operation of 1425 may be provided by reference to [reference needed]. Figure 7 The CLI Measurement Report Manager 740 described is used to perform this.

[0208] Figure 15 A flowchart illustrating a method 1500 for transmitting and measuring CLI reference signals in a scenario supporting SBFD according to various aspects of this disclosure is shown. The operation of method 1500 can be implemented by a UE or its components as described herein. For example, the operation of method 1500 can be implemented by a UE as described herein. Figures 1 to 8 The UE 115 described herein is used to perform this function. In some examples, the UE can execute a set of instructions to control the functional elements of the UE to perform the described function. Additionally or alternatively, the UE may use dedicated hardware to perform aspects of the described function.

[0209] At 1505, the method may include: transmitting capability information indicating that the UE is capable of transmitting CLI-RS via a guard band located between the uplink subband and the downlink subband during at least one time period allocated for subband full-duplex operation. Operation of block 1505 may be performed according to examples as disclosed herein. In some examples, aspects of operation of 1505 may be provided by reference to... Figure 7 The reference signal capability manager 745 is described and executed accordingly.

[0210] At 1510, the method may include: receiving control signaling, based on transmit capability information, indicating one or more resources for transmitting CLI-RS, the one or more resources at least partially overlapping the guard band in frequency. Operation of block 1510 may be performed according to examples as disclosed herein. In some examples, aspects of operation of 1510 may be provided by reference to [reference needed]. Figure 7The reference signal resource manager 750 is used to execute this.

[0211] At 1515, the method may include: sending CLI-RS via one or more resources based on receiving control signaling instructing one or more resources. The operation of block 1515 may be performed according to examples as disclosed herein. In some examples, aspects of the operation of 1515 may be provided by reference to [reference needed]. Figure 7 The reference signal sending manager 755 described is used to execute this.

[0212] Figure 16 A flowchart illustrating a method 1600 for transmitting and measuring CLI reference signals in a scenario supporting SBFD according to various aspects of this disclosure is shown. The operation of method 1600 can be implemented by a UE or its components as described herein. For example, the operation of method 1600 can be implemented by a UE or its components as described herein. Figures 1 to 8 The UE 115 described herein is used to perform this function. In some examples, the UE can execute a set of instructions to control the functional elements of the UE to perform the described function. Additionally or alternatively, the UE may use dedicated hardware to perform aspects of the described function.

[0213] At 1605, the method may include: transmitting capability information indicating that the UE is capable of transmitting CLI-RS via a guard band located between the uplink subband and the downlink subband during at least one time period allocated for subband full-duplex operation. Operation of block 1605 may be performed according to examples as disclosed herein. In some examples, aspects of operation of 1605 may be provided by reference to... Figure 7 The reference signal capability manager 745 is described and executed accordingly.

[0214] At 1610, the method may include: receiving control signaling, based on transmit capability information, indicating one or more resources for transmitting CLI-RS, the one or more resources at least partially overlapping the guard band in frequency. Operation of block 1610 may be performed according to examples as disclosed herein. In some examples, aspects of operation of 1610 may be provided by reference to... Figure 7 The reference signal resource manager 750 is used to execute this.

[0215] At 1615, the method may include: receiving an indication of a threshold transmit power, transmit beam limiting, or both via control signaling, wherein transmitting CLI-RS includes: transmitting CLI-RS according to the threshold transmit power, via a transmit beam, or both. The operation of block 1615 may be performed according to the examples disclosed herein. In some examples, aspects of the operation of 1615 may be provided by reference to [reference needed]. Figure 7 The reference signal sending manager 755 described is used to execute this.

[0216] At 1620, the method may include: sending CLI-RS via one or more resources based on receiving control signaling instructing one or more resources. The operation of block 1620 may be performed according to examples as disclosed herein. In some examples, aspects of the operation of 1620 may be provided by reference to [reference needed]. Figure 7 The reference signal sending manager 755 described is used to execute this.

[0217] Figure 17 A flowchart illustrating a method 1700 for transmitting and measuring CLI reference signals in a scenario supporting SBFD according to various aspects of this disclosure is shown. The operation of method 1700 can be implemented by a network entity or its components as described herein. For example, the operation of method 1700 can be implemented by a network entity or its components as described herein. Figures 1 to 4 as well as Figures 9 to 12 The described network entity performs the functions. In some examples, the network entity may execute a set of instructions to control the functional elements of the network entity to perform the described functions. Additionally or alternatively, the network entity may use dedicated hardware to perform aspects of the described functions.

[0218] At 1705, the method may include: receiving capability information from a set of multiple user equipment (UEs) indicating the capability to support CLI measurements via a guard band located between an uplink subband and a downlink subband during at least one time period allocated for subband full-duplex operation. Operation of block 1705 may be performed according to examples as disclosed herein. In some examples, aspects of operation of 1705 may be provided by reference to [reference needed]. Figure 11 The described protection belt capability component 1125 is used to perform this function.

[0219] At 1710, the method may include: transmitting control signaling, based on received capability information, instructing one or more resources for CLI measurement, the one or more resources at least partially overlapping the guard band in frequency. Operation of block 1710 may be performed according to examples as disclosed herein. In some examples, aspects of operation of 1710 may be provided by reference to [reference needed]. Figure 11 The CLI measurement resource component 1130 described herein is used to perform this.

[0220] At 1715, the method may include: receiving a CLI measurement report from at least a first UE in a set of a plurality of UEs. The operation of block 1715 may be performed according to examples as disclosed herein. In some examples, aspects of the operation of 1715 may be provided by reference to [reference needed]. Figure 11 The CLI measurement report component 1135 described herein is used to perform this.

[0221] Figure 18A flowchart illustrating a method 1800 for transmitting and measuring CLI reference signals in a scenario supporting SBFD according to various aspects of this disclosure is shown. The operation of method 1800 may be implemented by a network entity or its components as described herein. For example, the operation of method 1800 may be implemented by a network entity or its components as described herein. Figures 1 to 4 as well as Figures 9 to 12 The described network entity performs the functions. In some examples, the network entity may execute a set of instructions to control the functional elements of the network entity to perform the described functions. Additionally or alternatively, the network entity may use dedicated hardware to perform aspects of the described functions.

[0222] At 1805, the method may include: receiving capability information from a set of multiple user equipment (UEs) indicating the capability to support CLI measurements via a guard band located between an uplink subband and a downlink subband during at least one time period allocated for subband full-duplex operation. Operation of block 1805 may be performed according to examples as disclosed herein. In some examples, aspects of operation of 1805 may be provided by reference to [reference needed]. Figure 11 The described protection belt capability component 1125 is used to perform this function.

[0223] At 1810, the method may include: receiving capability information from a first UE, the capability information including an indication that the first UE is capable of performing CLI measurements via a guard band. Operation of block 1810 may be performed according to examples as disclosed herein. In some examples, aspects of operation of 1810 may be derived from references... Figure 11 The described protection band CLI measurement capability component 1140 is used to perform this.

[0224] At 1815, the method may include: transmitting control signaling, based on received capability information, instructing one or more resources for CLI measurement, the one or more resources at least partially overlapping the guard band in frequency. Operation of block 1815 may be performed according to examples as disclosed herein. In some examples, aspects of operation of 1815 may be provided by reference to [reference needed]. Figure 11 The CLI measurement resource component 1130 described herein is used to perform this.

[0225] At 1820, the method may include: receiving a CLI measurement report from at least a first UE in a set of a plurality of UEs. The operation of block 1820 may be performed according to examples as disclosed herein. In some examples, aspects of the operation of 1820 may be provided by reference to [reference needed]. Figure 11 The CLI measurement report component 1135 described herein is used to perform this.

[0226] The following provides an overview of the various aspects of this disclosure:

[0227] Aspect 1: A method for wireless communication at a UE, the method comprising: transmitting capability information indicating that the UE is capable of performing CLI measurements via a guard band located between an uplink subband and a downlink subband during at least one time period allocated for subband full-duplex operation; receiving, at least in part, control signaling from at least a second UE indicating one or more resources for measuring CLI, the one or more resources at least partially overlapping the guard band in frequency, based at least in part on transmitting the capability information; performing one or more CLI measurements via the one or more resources; and transmitting a CLI measurement report at least in part on the one or more CLI measurements.

[0228] Aspect 2: According to the method of aspect 1, the method further includes: receiving, via the control signaling, an indication that the one or more resources at least partially overlap with the uplink subband, the downlink subband, or both.

[0229] Aspect 3: According to the method of aspect 1, the method further includes: receiving, via the control signaling, an indication that the one or more resources do not overlap with the uplink subband or the downlink subband.

[0230] Aspect 4: The method according to any one of Aspects 1 to 3, wherein performing the one or more CLI measurements comprises: measuring CLI-RSSI based on capabilities via the one or more resources.

[0231] Aspect 5: The method according to any one of Aspects 1 to 4, the method further comprising: receiving, based on the capability, an indication of a plurality of SRS resources including the one or more resources via the control signaling; monitoring one or more SRSs from at least the second UE via the plurality of SRS resources; and measuring CLI-RSRP via the one or more resources based at least in part on the monitoring.

[0232] Aspect 6: According to the method of aspect 5, wherein the plurality of SRS resources correspond to a communication SRS configuration or a location SRS configuration, and the one or more resources include a subset of the plurality of SRS resources.

[0233] Aspect 7: The method according to any one of Aspects 5 to 6, wherein the plurality of SRS resources are allocated for the one or more CLI measurements.

[0234] Aspect 8: A method for wireless communication at a UE, the method comprising: transmitting capability information indicating that the UE is capable of transmitting CLI-RS via a guard band located between an uplink subband and a downlink subband during at least one time period allocated for subband full-duplex operation; receiving control signaling indicating one or more resources for transmitting the CLI-RS based at least in part on transmitting the capability information, the one or more resources at least partially overlapping the guard band in frequency; and transmitting the CLI-RS via the one or more resources based at least in part on receiving the control signaling indicating the one or more resources.

[0235] Aspect 9: The method according to aspect 8, the method further comprising: receiving an indication of a threshold transmit power, transmit beam limit, or both via the control signaling, wherein transmitting the CLI-RS comprises: transmitting the CLI-RS according to the threshold transmit power, via a transmit beam, or both.

[0236] Aspect 10: The method according to any one of Aspects 8 to 9, the method further comprising: receiving, via the control signaling, an indication of a plurality of SRS resources including the one or more resources, wherein the CLI-RS includes the SRS.

[0237] Aspect 11: According to the method of aspect 10, wherein the plurality of SRS resources correspond to a communication SRS configuration or a location SRS configuration, and the one or more resources include a subset of the plurality of SRS resources.

[0238] Aspect 12: The method according to any one of Aspects 10 to 11, wherein the plurality of SRS resources are allocated for CLI measurements.

[0239] Aspect 13: The method according to any one of Aspects 8 to 12, the method further comprising: receiving, via the control signaling, an indication that the one or more resources at least partially overlap with the uplink subband.

[0240] Aspect 14: The method according to any one of Aspects 8 to 12, the method further comprising: receiving, via the control signaling, an indication that the one or more resources do not overlap with the uplink subband or the downlink subband.

[0241] Aspect 15: A method for wireless communication at a network entity, the method comprising: receiving capability information from a plurality of user equipment (UEs), the capability information indicating capability to support CLI measurements via a guard band located between an uplink subband and a downlink subband during at least one time period allocated for subband full-duplex operation; transmitting control signaling indicating one or more resources for CLI measurements based at least in part on the receipt of the capability information, the one or more resources at least partially overlapping the guard band in frequency; and receiving a CLI measurement report from at least a first UE of the plurality of UEs.

[0242] Aspect 16: According to the method of aspect 15, receiving the capability information includes: receiving the capability information from the first UE, the capability information including an indication that the first UE is capable of performing CLI measurements via the guard band.

[0243] Aspect 17: The method according to any one of Aspects 15 to 16, wherein receiving the capability information comprises: receiving the capability information from a second UE, the capability information comprising an indication that the second UE is capable of transmitting CLI-RS via the guard band.

[0244] Aspect 18: The method according to aspect 17, the method further comprising: sending an indication of threshold transmit power, transmit beam limit, or both to the second UE via the control signaling, at least in part based on the capability information.

[0245] Aspect 19: The method according to any one of Aspects 15 to 18, the method further comprising: sending an indication of a plurality of SRS resources including the one or more resources via the control signaling.

[0246] Aspect 20: According to the method of aspect 19, wherein the plurality of SRS resources correspond to a communication SRS configuration or a location SRS configuration, and the one or more resources include a subset of the plurality of SRS resources.

[0247] Aspect 21: The method according to any one of Aspects 19 to 20, wherein the plurality of SRS resources are allocated for CLI measurements.

[0248] Aspect 22: The method according to any one of aspects 15 to 21, the method further comprising: transmitting via the control signaling an indication that the one or more resources at least partially overlap with the uplink subband.

[0249] Aspect 23: The method according to any one of aspects 15 to 21, the method further comprising: sending an indication via the control signaling that the one or more resources do not overlap with the uplink subband or the downlink subband.

[0250] Aspect 24: An apparatus for wireless communication at a UE, the apparatus comprising: at least one processor; at least one memory coupled to the at least one processor (e.g., operatively, communicatively, functionally, electronically, or electrically); and instructions stored in the at least one memory and executable by the at least one processor (e.g., directly, indirectly, after preprocessing, or without preprocessing) to cause the apparatus to perform the method according to any one of aspects 1 to 7.

[0251] Aspect 25: An apparatus for wireless communication at a UE, the apparatus comprising at least one component for performing the method according to any one of aspects 1 to 7.

[0252] Aspect 26: A non-transitory computer-readable medium storing code for wireless communication at a UE, the code comprising instructions executable by at least one processor (e.g., directly, indirectly, after preprocessing, or without preprocessing) to perform the method according to any one of Aspects 1 to 7.

[0253] Aspect 27: An apparatus for wireless communication at a UE, the apparatus comprising: at least one processor; at least one memory coupled to the at least one processor (e.g., operatively, communicatively, functionally, electronically, or electrically); and instructions stored in the at least one memory and executable by the at least one processor (e.g., directly, indirectly, after preprocessing, or without preprocessing) to cause the apparatus to perform the method according to any one of aspects 8 to 14.

[0254] Aspect 28: An apparatus for wireless communication at a UE, the apparatus comprising at least one component for performing the method according to any one of aspects 8 to 14.

[0255] Aspect 29: A non-transitory computer-readable medium storing code for wireless communication at a UE, the code comprising instructions executable by at least one processor (e.g., directly, indirectly, after preprocessing, or without preprocessing) to perform the method according to any one of Aspects 8 to 14.

[0256] Aspect 30: An apparatus for wireless communication at a network entity, the apparatus comprising: at least one processor; at least one memory coupled to the at least one processor (e.g., operatively, communicatively, functionally, electronically, or electrically); and instructions stored in the at least one memory and executable by the at least one processor (e.g., directly, indirectly, after preprocessing, or without preprocessing) to cause the apparatus to perform the method according to any one of aspects 15 to 23.

[0257] Aspect 31: An apparatus for wireless communication at a network entity, the apparatus comprising at least one component for performing the method according to any one of aspects 15 to 23.

[0258] Aspect 32: A non-transitory computer-readable medium storing code for wireless communication at a network entity, the code including instructions executable by at least one processor (e.g., directly, indirectly, after preprocessing, or without preprocessing) to perform the method according to any one of aspects 15 to 23.

[0259] It should be noted that the methods described herein describe possible specific implementations, and the operations and steps can be rearranged or otherwise modified, and other specific implementations are also possible. Furthermore, aspects from two or more of these methods can be combined.

[0260] While aspects of LTE, LTE-A, LTE-A Pro, or NR systems may be described for illustrative purposes, and the terms LTE, LTE-A, LTE-A Pro, or NR may be used in most of the description, the techniques described herein are also applicable to networks outside of LTE, LTE-A, LTE-A Pro, or NR networks. For example, the techniques described can be applied to a variety of other wireless communication systems, such as Ultra Mobile Broadband (UMB), IEEE 802.11 (Wi-Fi), IEEE 802.16 (WiMAX), IEEE 802.20, Flash OFDM, and other systems and radio technologies not explicitly mentioned herein, including future systems and radio technologies.

[0261] The information and signals described herein can be represented using any of a variety of different techniques and methods. For example, data, instructions, commands, information, signals, bits, symbols, and chips mentioned throughout the description can be represented by voltage, current, electromagnetic waves, magnetic fields or magnetic particles, light fields or optical particles, or any combination thereof.

[0262] The various exemplary blocks and components described herein can be implemented or performed using a general-purpose processor, DSP, ASIC, CPU, GPU, FPGA, or other programmable logic device, discrete gate or transistor logic device, discrete hardware component, or any combination thereof designed to perform the functions described herein. A general-purpose processor may be a microprocessor, but in alternative embodiments, a processor may be any processor, controller, microcontroller, or state machine. A processor may also be implemented as a combination of computing devices (e.g., a combination of a DSP and a microprocessor, multiple microprocessors, one or more microprocessors working in conjunction with a DSP core, or any other such configuration). Any function or operation described herein that can be performed by a processor may be performed by multiple processors capable of performing the described function or operation individually or jointly.

[0263] The functionality described herein can be implemented using hardware, software executed by a processor, or any combination thereof. Software should be broadly interpreted as instructions, instruction sets, code, code segments, program code, programs, subroutines, software modules, applications, software applications, software packages, routines, subroutines, objects, executables, threads of execution, procedures, or functions, whether referred to as software, firmware, middleware, microcode, hardware description languages, or other terms. When implemented using software executed by a processor, the functionality can be stored as one or more instructions or code on a computer-readable medium or transmitted using one or more instructions or code on a computer-readable medium. Other examples and specific implementations are within the scope of this disclosure and the appended claims. For example, due to the nature of software, the functionality described herein can be implemented using software executed by a processor, hardware, hardwired, or any combination thereof. Features implementing the functionality can also be physically located in various locations, including portions distributed such that the functionality is implemented at different physical locations.

[0264] Computer-readable media includes both non-transitory computer storage media and communication media, encompassing any medium that facilitates the transfer of a computer program from one location to another. Non-transitory storage media can be any available medium accessible by a general-purpose or special-purpose computer. By way of example and not limitation, non-transitory computer-readable media may include RAM, ROM, electrically erasable programmable ROM (EEPROM), flash memory, phase-change memory, compact disc (CD) ROM or other optical disc storage devices, magnetic disk storage devices or other magnetic storage devices, or any other non-transitory medium that can be used to carry or store desired program code components in the form of instructions or data structures and is accessible by a general-purpose or special-purpose computer or a general-purpose or special-purpose processor. Furthermore, any connection is appropriately referred to as computer-readable media. For example, if software is transmitted from a website, server, or other remote source using coaxial cable, fiber optic cable, twisted pair, digital subscriber line (DSL), or wireless technologies such as infrared, radio, and microwave, then coaxial cable, fiber optic cable, twisted pair, DSL, or wireless technologies such as infrared, radio, and microwave are included within the definition of computer-readable media. As used herein, disks and optical discs include CDs, laser discs, optical discs, digital multifunction discs (DVDs), floppy disks, and Blu-ray discs. Disks can magnetically reproduce data, and optical discs can optically reproduce data using lasers. Combinations of the above are also included within the scope of computer-readable media. Any function or operation described herein that can be performed by memory can be performed by multiple memories capable of performing the described function or operation individually or jointly.

[0265] As used herein (including in the claims), the word "or" in an enumeration of items (e.g., an enumeration of items accompanied by phrases such as "at least one of" or "one or more of") indicates an inclusive enumeration, such that an enumeration of at least one of, for example, A, B, or C means A or B or C or AB or AC or BC or ABC (i.e., A and B and C). Furthermore, as used herein, the phrase "based on" should not be construed as a reference to a closed set of conditions. For example, an example step described as "based on condition A" could be based on both condition A and condition B without departing from the scope of this disclosure. In other words, as used herein, the phrase "based on" should be interpreted in the same manner as the phrase "at least partially based on". As used herein, when the term "and / or" is used in a list of two or more items, it means that any one of the listed items may be used alone, or any combination of two or more of the listed items may be used. For example, if a composition is described as containing components A, B and / or C, the composition may contain A alone; B alone; C alone; a combination of A and B; a combination of A and C; a combination of B and C; or a combination of A, B and C.

[0266] As used herein, including in claims, the article “a” preceding a noun is open-ended and is understood to refer to “at least one” or “one or more” of those nouns. Therefore, the terms “a,” “at least one,” “one or more,” and “at least one of one or more” are interchangeable. For example, where a claim enumerates “components” performing one or more functions, each of the individual functions may be performed by a single component or by any combination of multiple components. Therefore, the term “component” having a characteristic or performing a function may refer to “at least one of one or more components” having a particular characteristic or performing a particular function. Subsequent references to a component introduced with the article “a” using the terms “the” or “the” can refer to any or all of the one or more components. For example, a component introduced with the article “a” can be understood to mean “one or more components,” and subsequent reference to “the component” in a claim can be understood as equivalent to referring to “at least one of the one or more components.”

[0267] The terms "determine" or "identify" encompass a variety of actions, and therefore, "determine" or "identify" can include calculation, computation, processing, derivation, investigation, lookup (such as by searching in a table, database, or other data structure), ascertainment, etc. Additionally, "determine" or "identify" can include receiving (such as receiving information or signaling, e.g., receiving information or signaling for determination, receiving information or signaling for identification), accessing (such as accessing data in memory or accessing information), etc. Furthermore, "determine" or "identify" can include parsing, obtaining, selecting, choosing, creating, and other similar actions.

[0268] In the accompanying drawings, similar components or features may have the same reference numerals. Furthermore, various components of the same type can be distinguished by adding a dash after the reference numeral and a second reference numeral to differentiate between similar components. If only the first reference numeral is used in the description, the description can be applied to any of the similar components having the same first reference numeral, regardless of the second reference numeral or other subsequent reference numerals.

[0269] The description herein, illustrated with reference to the accompanying drawings, describes an example configuration and does not represent all achievable examples or those within the scope of the claims. The term "example" as used herein means "used as an example, instance, or illustration," not "preferred" or "advantageous over other examples." The detailed description includes specific details used to provide an understanding of the described techniques. However, these techniques can be practiced without these specific details. In some cases, known structures and devices are shown in block diagram form to avoid obscuring the concept of the described examples.

[0270] The description herein is provided to enable those skilled in the art to implement or use this disclosure. Various modifications to this disclosure will be apparent to those skilled in the art, and the general principles defined herein may be applied to other variations without departing from the scope of this disclosure. Therefore, this disclosure is not limited to the examples and designs described herein, but should be granted the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An apparatus for wireless communication at a user equipment (UE), the apparatus comprising: At least one processor; and At least one memory coupled to the at least one processor, the at least one memory storing instructions executable by the at least one processor to cause the UE to: Send capability information indicating that the UE is capable of performing cross-link interference measurements via a guard band located between the uplink subband and the downlink subband during at least one time period allocated for subband full-duplex operation; The capability information is received, at least in part, from at least a second UE, as a control signaling instructing one or more resources for measuring cross-link interference, the one or more resources overlapping at least partially with the guard band in frequency. Perform one or more cross-link interference measurements via the one or more resources; and Cross-link interference measurement reports are sent based at least in part on the one or more cross-link interference measurements.

2. The apparatus of claim 1, wherein the instructions are further executable by the at least one processor to cause the UE to: The control signaling receives an indication that one or more resources at least partially overlap with the uplink subband, the downlink subband, or both.

3. The apparatus of claim 1, wherein the instructions are further executable by the at least one processor to cause the UE to: The control signaling receives an indication that one or more resources do not overlap with the uplink subband or the downlink subband.

4. The apparatus of claim 1, wherein the instructions for performing the one or more cross-link interference measurements are executable by the at least one processor to cause the UE to: Based on the capability, a cross-link interference received signal strength indicator is measured via one or more of the resources.

5. The apparatus of claim 1, wherein the instructions are further executable by the at least one processor to cause the UE to: Based on the capability, receive instructions for multiple SRS resources, including one or more of the resources, via the control signaling; Monitoring one or more SRSs from at least the second UE via the plurality of SRS resources; and The cross-link interference reference signal received power is measured via the one or more resources, at least in part based on the monitoring.

6. The apparatus of claim 5, wherein the plurality of SRS resources correspond to a communication SRS configuration or a location SRS configuration, and the one or more resources comprise a subset of the plurality of SRS resources.

7. The apparatus of claim 5, wherein the plurality of SRS resources are allocated for the one or more cross-link interference measurements.

8. An apparatus for wireless communication at a user equipment (UE), the apparatus comprising: At least one processor; and At least one memory coupled to the at least one processor, the at least one memory storing instructions executable by the at least one processor to cause the UE to: Transmit capability information, the capability information indicating that the UE is able to transmit a cross-link interference reference signal via a guard band located between the uplink subband and the downlink subband during at least one time period allocated for subband full-duplex operation; The control signaling for receiving one or more resources for transmitting the cross-link interference reference signal is based at least in part on transmitting the capability information, the one or more resources being at least partially overlapping the guard band in frequency. as well as The cross-link interference reference signal is transmitted via the one or more resources, at least in part, based on the received control signaling instructing the one or more resources.

9. The apparatus of claim 8, wherein the instructions are further executable by the at least one processor to cause the UE to: Receiving an indication for threshold transmit power, transmit beam limiting, or both via the control signaling, wherein transmitting the cross-link interference reference signal includes: The cross-link interference reference signal is transmitted based on the threshold transmission power, via a transmission beam, or both.

10. The apparatus of claim 8, wherein the instructions are further executable by the at least one processor to cause the UE to: The control signaling receives an indication of a plurality of probe reference signal resources including the one or more resources, wherein the cross-link interference reference signal includes a probe reference signal.

11. The apparatus of claim 10, wherein the plurality of detection reference signal resources correspond to a communication detection reference signal configuration or a positioning detection reference signal configuration, and the one or more resources include a subset of the plurality of detection reference signal resources.

12. The apparatus of claim 10, wherein the plurality of probe reference signal resources are allocated for cross-link interference measurement.

13. The apparatus of claim 8, wherein the instructions are further executable by the at least one processor to cause the UE to: The control signaling receives an indication that one or more resources at least partially overlap with the uplink subband.

14. The apparatus of claim 8, wherein the instructions are further executable by the at least one processor to cause the UE to: The control signaling receives an indication that one or more resources do not overlap with the uplink subband or the downlink subband.

15. An apparatus for wireless communication at a network entity, the apparatus comprising: At least one processor; and At least one memory coupled to the at least one processor, the at least one memory storing instructions executable by the at least one processor to cause the network entity to: Capability information is received from multiple user equipment (UEs) indicating the ability to support cross-link interference measurements via a guard band located between uplink and downlink subbands during at least one time period allocated for subband full-duplex operation. Control signaling instructing one or more resources for cross-link interference measurement is sent, at least in part based on the received capability information, the one or more resources at least partially overlapping the guard band in frequency; as well as A cross-link interference measurement report is received from at least the first UE among the plurality of UEs.

16. The apparatus of claim 15, wherein the instruction for receiving the capability information is executable by the at least one processor to cause the network entity to: The capability information is received from the first UE, the capability information including an indication that the first UE is capable of performing cross-link interference measurements via the guard band.

17. The apparatus of claim 15, wherein the instruction for receiving the capability information is executable by the at least one processor to cause the network entity to: The capability information is received from the second UE, which includes an indication that the second UE is capable of transmitting a cross-link interference reference signal via the guard band.

18. The apparatus of claim 17, wherein the instructions are further executable by the at least one processor to cause the network entity to: The control signaling sends an indication to the second UE of a threshold transmit power, transmit beam limit, or both, at least in part based on the capability information.

19. The apparatus of claim 15, wherein the instructions are further executable by the at least one processor to cause the network entity to: Instructions are sent to a plurality of probe reference signal resources, including the one or more resources, via the control signaling.

20. The apparatus of claim 19, wherein the plurality of detection reference signal resources correspond to a communication detection reference signal configuration or a positioning detection reference signal configuration, and the one or more resources include a subset of the plurality of detection reference signal resources.

21. The apparatus of claim 19, wherein the plurality of probe reference signal resources are allocated for cross-link interference measurement.

22. The apparatus of claim 15, wherein the instructions are further executable by the at least one processor to cause the network entity to: The control signaling sends an indication that the one or more resources at least partially overlap with the uplink subband.

23. The apparatus of claim 15, wherein the instructions are further executable by the at least one processor to cause the network entity to: The control signaling sends an indication that one or more resources do not overlap with the uplink subband or the downlink subband.

24. A method for conducting wireless communication at a user equipment (UE), the method comprising: Send capability information indicating that the UE is capable of performing cross-link interference measurements via a guard band located between the uplink subband and the downlink subband during at least one time period allocated for subband full-duplex operation; The capability information is received, at least in part, from at least a second UE, as a control signaling instructing one or more resources for measuring cross-link interference, the one or more resources overlapping at least partially with the guard band in frequency. Perform one or more cross-link interference measurements via the one or more resources; and Cross-link interference measurement reports are sent based at least in part on the one or more cross-link interference measurements.

25. The method according to claim 24, further comprising: The control signaling receives an indication that one or more resources at least partially overlap with the uplink subband, the downlink subband, or both.

26. The method according to claim 24, further comprising: The control signaling receives an indication that one or more resources do not overlap with the uplink subband or the downlink subband.

27. The method of claim 24, wherein performing the one or more cross-link interference measurements comprises: Based on the capability, a cross-link interference received signal strength indicator is measured via one or more of the resources.

28. The method according to claim 24, further comprising: Based on the capability, receive instructions for a plurality of probe reference signal resources, including one or more of the resources, via the control signaling; One or more probe reference signals from at least the second UE are monitored via the plurality of probe reference signal resources; as well as The cross-link interference reference signal received power is measured via the one or more resources, at least in part based on the monitoring.

29. The method of claim 28, wherein the plurality of probe reference signal resources correspond to a communication probe reference signal configuration or a positioning probe reference signal configuration, and the one or more resources include a subset of the plurality of probe reference signal resources.

30. The method of claim 28, wherein the plurality of probe reference signal resources are allocated for the one or more cross-link interference measurements.

Images