Cross-link interference reference signal configuration per resource type
By using different resource sets for CLI measurement and reporting during SBFD symbols and non-SBFD symbols, the problem of differences in CLI degree and nature is solved, and measurement efficiency and system performance are improved.
Patent Information
- Application Number
- CN202380085308.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Priority Date
- 2022-12-20
- Filing Date
- 2023-10-26
- Publication Date
- 2025-07-22
AI Technical Summary
During subband full-duplex (SBFD) symbols and non-SBFD symbols, the degree and nature of cross-link interference (CLI) may vary, and prior art is difficult to effectively distinguish and conduct targeted CLI measurements and reporting.
The wireless communication device receives different sets of resources indicating to perform CLI measurements during SBFD symbols or non-SBFD symbols and selects the appropriate set of resources for measurement and reporting based on the symbol type.
It improves the efficiency and accuracy of CLI measurement, enhances system capacity and resource utilization, realizes flexible uplink and downlink resource adaptation, and improves the spectrum efficiency of SBFD communication.
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Figure CN120359720A_ABST
Abstract
Description
[0001] Cross-reference
[0002] This patent application claims priority to U.S. Patent Application No. 18 / 069,211, filed on Dec. 20, 2022, by ZHANG et al., entitled “PER-RESOURCE TYPE CROSS LINK INTERFERENCE REFERENCE SIGNAL CONFIGURATION”, which is assigned to the assignee of the present application. Technical Field
[0003] The following relates to wireless communication, including configurations for per-resource type cross-link interference (CLI) reference signal measurement and reporting. Background Art
[0004] Wireless communication systems are widely deployed to provide various types of communication content, such as voice, video, packet data, messaging, broadcast, etc. These systems may be capable of supporting communication with multiple users by sharing available system resources (e.g., time, frequency, and power). Examples of such multi-access systems include fourth-generation (4G) systems (such as Long-Term Evolution (LTE) systems, LTE-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 techniques such as code division multiple access (CDMA), time division multiple access (TDMA), frequency division multiple access (FDMA), orthogonal FDMA (OFDMA), or discrete Fourier transform spread orthogonal frequency division multiplexing (DFT-S-OFDM). A wireless multi-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).
[0005] Some wireless devices (such as network entities (e.g., gNodeB)) may support sub-band full duplex (SBFD) communication, which may support simultaneous transmission and reception of downlink transmission and uplink transmission on a sub-band basis. UEs generally may support half-duplex communication. However, SBFD communication with a network entity may generate cross-link interference (CLI) that affects the UE or the network entity. The causes and amounts of the observed CLI may be different for SBFD symbols and non-SBFD symbols. Summary of the Invention
[0006] The described techniques relate to improved methods, systems, devices, and apparatuses for supporting cross-link interference (CLI) reference signal configurations for each resource type. For example, the described techniques provide separate CLI measurement and reporting procedures based on whether the measured CLI occurs during sub-band full-duplex (SBFD) symbols or non-SBFD symbols. In some examples, a user equipment (UE) experiencing CLI between UEs, a network entity experiencing CLI between gNBs, or both may use different CLI measurement and reporting procedures. In such cases, a wireless device (e.g., a UE, a network entity) may receive signaling indicating a set of resources (e.g., a resource configuration) for performing CLI measurements during one or more SBFD symbols or non-SBFD symbols. The set of resources may differ based on whether the CLI is observed during the SBFD symbol or the non-SBFD symbol. Additionally, the set of resources that the wireless device may use to report CLI measurements may be different. In some examples, different sets of resources may include more CLI resources for SBFD symbols than for non-SBFD symbols. Additionally, the set of resources for non-SBFD symbols may allocate more resources than for aligned time-division duplex (TDD) cells to account for unaligned TDD cells.
[0007] A method for wireless communication at a wireless communication device is described. The method may include: receiving first information indicating a first set of resources for performing CLI measurements during one or more SBFD symbols; receiving second information indicating a second set of resources for performing CLI measurements during one or more non-SBFD symbols; and performing the CLI measurements using the first set of resources or the second set of resources based on the type of symbol in which the CLI measurements are performed, where the type of symbol is an SBFD symbol or a non-sub-band full-duplex symbol.
[0008] An apparatus for wireless communication at a wireless communication device is described. The apparatus may include a processor, a memory coupled to the processor, and instructions stored in the memory. The instructions may be executable by the processor to cause the apparatus to: receive first information indicating a first set of resources for performing CLI measurements during one or more SBFD symbols; receive second information indicating a second set of resources for performing CLI measurements during one or more non-SBFD symbols; and perform the CLI measurements using the first set of resources or the second set of resources based on the type of symbol in which the CLI measurements are performed, where the type of symbol is an SBFD symbol or a non-sub-band full-duplex symbol.
[0009] Another apparatus for wireless communication at a wireless communication device is described. The apparatus may include: means for receiving first information indicating a first resource set for performing CLI measurements during one or more SBFD symbols; means for receiving second information indicating a second resource set for performing CLI measurements during one or more non-SBFD symbols; and means for performing the CLI measurements using the first resource set or the second resource set based on the type of symbol in which the CLI measurements are performed, where the type of symbol is an SBFD symbol or a non-subband full-duplex symbol.
[0010] A non-transitory computer-readable medium storing code for wireless communication at a wireless communication device is described. The code may include instructions executable by a processor to: receive first information indicating a first resource set for performing CLI measurements during one or more SBFD symbols; receive second information indicating a second resource set for performing CLI measurements during one or more non-SBFD symbols; and perform the CLI measurements using the first resource set or the second resource set based on the type of symbol in which the CLI measurements are performed, where the type of symbol is an SBFD symbol or a non-subband full-duplex symbol.
[0011] Some examples of the methods, apparatuses, and non-transitory computer-readable media described herein may also include operations, features, components, or instructions for the following actions: receiving the first information indicating a first additional resource set for reporting the results of the CLI measurements during the one or more SBFD symbols; and receiving the second information indicating a second additional resource set for reporting the results of the CLI measurements during the one or more non-SBFD symbols.
[0012] In some examples of the methods, apparatuses, and non-transitory computer-readable media described herein, the wireless communication device may be a user equipment (UE) supporting half-duplex communication, and where the first information and the second information may be received from a network entity supporting SBFD operation.
[0013] Some examples of the methods, apparatuses, and non-transitory computer-readable media described herein may also include operations, features, components, or instructions for the following actions: sending a report indicating the results of the CLI measurements using the first additional resource set or the second additional resource set based on the type of symbol in which the CLI measurements may be performed.
[0014] In some examples of the methods, apparatuses, and non-transitory computer-readable media described herein, performing the CLI measurement may include operations, features, components, or instructions for the following actions: performing at least one of a reference signal strength indicator (RSSI) measurement or a signal-to-interference-and-noise (SINR) measurement for one or more downlink subbands in the SBFD symbol to measure the CLI caused by inter-subband leakage resulting from an uplink transmission from an adjacent wireless communication device during the SBFD symbol; and performing at least one of an RSSI measurement or a reference signal received power (RSRP) measurement for one or more uplink subbands in the SBFD symbol to measure the in-subband CLI caused by the uplink transmission, where the wireless communication device may be a UE.
[0015] In some examples of the methods, apparatuses, and non-transitory computer-readable media described herein, performing the CLI measurement may include operations, features, components, or instructions for the following actions: performing at least one of an RSSI measurement or a SINR measurement for one or more uplink subbands in the SBFD symbol to measure the CLI caused by inter-subband leakage resulting from a downlink transmission from an adjacent wireless communication device during the SBFD symbol; and performing at least one of an RSSI measurement or an RSRP measurement for one or more downlink subbands in the SBFD symbol to measure the in-subband CLI caused by the downlink transmission, where the wireless communication device may be a network entity.
[0016] In some examples of the methods, apparatuses, and non-transitory computer-readable media described herein, performing the CLI measurement may include operations, features, components, or instructions for the following actions: performing the CLI measurement during the non-SBFD symbol based on misalignment of a time-division duplex format applied by the wireless communication device and one or more additional wireless communication devices during the non-SBFD symbol.
[0017] In some examples of the methods, apparatuses, and non-transitory computer-readable media described herein, the amount of the second resource set allocated for performing the CLI measurement during the non-SBFD symbol may be based on whether the time-division duplex format applied by the wireless communication device and one or more additional wireless communication devices during the non-SBFD symbol is aligned or misaligned.
[0018] In some examples of the methods, apparatuses, and non-transitory computer-readable media described herein, a first amount of the first resource set allocated for performing the CLI measurement during the SBFD symbol may be greater than a second amount of the second resource set allocated for performing the CLI measurement during the non-SBFD symbol.
[0019] Some examples of the methods, apparatuses, and non-transitory computer-readable media described herein may also include operations, features, components, or instructions for the following actions: distinguishing the first information from the second information based on the periodicity of the first resource set being associated with the corresponding periodicity of the one or more SBFD symbols.
[0020] In some examples of the methods, apparatuses, and non-transitory computer-readable media described herein, the first resource set and the second resource set may be indicated for each cell in a set of multiple cells.
[0021] In some examples of the methods, apparatuses, and non-transitory computer-readable media described herein, the wireless communication device may be a UE, and the CLI measurement may be used to determine the CLI between UEs.
[0022] A method for wireless communication at a wireless communication device is described. The method may include: sending first information indicating a first resource set for performing a CLI measurement during one or more SBFD symbols; and sending second information indicating a second resource set for performing a CLI measurement during one or more non-SBFD symbols.
[0023] An apparatus for wireless communication at a wireless communication device is described. The apparatus may include a processor, a memory coupled to the processor, and instructions stored in the memory. The instructions may be executable by the processor to cause the apparatus to: send first information indicating a first resource set for performing a CLI measurement during one or more SBFD symbols; and send second information indicating a second resource set for performing a CLI measurement during one or more non-SBFD symbols.
[0024] Another apparatus for wireless communication at a wireless communication device is described. The apparatus may include: means for sending first information indicating a first resource set for performing a CLI measurement during one or more SBFD symbols; and means for sending second information indicating a second resource set for performing a CLI measurement during one or more non-SBFD symbols.
[0025] A non-transitory computer-readable medium storing code for wireless communication at a wireless communication device is described. The code may include instructions executable by a processor to: send first information indicating a first resource set for performing a CLI measurement during one or more SBFD symbols; and send second information indicating a second resource set for performing a CLI measurement during one or more non-SBFD symbols.
[0026] Some examples of the methods, apparatuses, and non-transitory computer-readable media described herein may also include operations, features, components, or instructions for the following actions: sending the first information indicating a first additional resource set for reporting the results of the CLI measurement during the one or more SBFD symbols; and sending the second information indicating a second additional resource set for reporting the results of the CLI measurement during the one or more non-SBFD symbols.
[0027] In some examples of the methods, apparatuses, and non-transitory computer-readable media described herein, the wireless communication device may be a network entity supporting SBFD operation, and wherein the first information and the second information may be sent to a UE supporting half-duplex operation.
[0028] Some examples of the methods, apparatuses, and non-transitory computer-readable media described herein may also include operations, features, components, or instructions for the following actions: receiving a report indicating the results of the CLI measurement using the first additional resource set or the second additional resource set based on the type of symbol in which the CLI measurement may be performed.
[0029] In some examples of the methods, apparatuses, and non-transitory computer-readable media described herein, the amount of the second resource set allocated for performing the CLI measurement during non-SBFD symbols may be based on whether the time-division duplex format applied by the wireless communication device and one or more additional wireless communication devices during the non-SBFD symbols is aligned or unaligned.
[0030] In some examples of the methods, apparatuses, and non-transitory computer-readable media described herein, a first amount of the first resource set allocated for performing the CLI measurement during SBFD symbols may be greater than a second amount of the second resource set allocated for performing the CLI measurement during non-SBFD symbols.
[0031] In some examples of the methods, apparatuses, and non-transitory computer-readable media described herein, the first resource set and the second resource set may be indicated for each cell in a set of multiple cells.
[0032] In some examples of the methods, apparatuses, and non-transitory computer-readable media described herein, the wireless communication device may be a network entity, and the CLI measurement may be used to determine the CLI between network entities. BRIEF DESCRIPTION OF THE DRAWINGS
[0033] Figure 1 Examples of wireless communication systems supporting cross-link interference (CLI) reference signal configuration per resource type in accordance with one or more aspects of the present disclosure are illustrated.
[0034] Figure 2An example of a network architecture supporting per-resource type CLI reference signal configuration in accordance with one or more aspects of the present disclosure is illustrated.
[0035] Figure 3 An example of a wireless communication system supporting per-resource type CLI reference signal configuration in accordance with one or more aspects of the present disclosure is illustrated.
[0036] Figure 4 An example of a CLI supporting per-resource type CLI reference signal configuration in accordance with one or more aspects of the present disclosure is illustrated.
[0037] Figure 5 An example of a process flow supporting per-resource type CLI reference signal configuration in accordance with one or more aspects of the present disclosure is illustrated.
[0038] Figure 6 and Figure 7 A block diagram of a device supporting per-resource type CLI reference signal configuration in accordance with one or more aspects of the present disclosure is illustrated.
[0039] Figure 8 A block diagram of a communication manager supporting per-resource type CLI reference signal configuration in accordance with one or more aspects of the present disclosure is illustrated.
[0040] Figure 9 A diagram of a system including a device supporting per-resource type CLI reference signal configuration in accordance with one or more aspects of the present disclosure is illustrated.
[0041] Figures 10 to 13 A flowchart showing a method supporting per-resource type CLI reference signal configuration in accordance with one or more aspects of the present disclosure is illustrated. Detailed Description
[0042] A wireless device including a user equipment (UE) and a network entity can communicate using half-duplex operation, which can support separate, non-simultaneous transmission or reception for downlink or uplink transmission. Additionally or alternatively, the UE and the network entity can communicate using full-duplex operation, which can support simultaneous transmission and reception of downlink transmission and uplink transmission. Sub-band full-duplex (SBFD) operation, which can be a type of full-duplex operation, can support simultaneous transmission and reception of downlink transmission and uplink transmission on a sub-band basis. That is, the wireless device can use different frequency sub-bands to simultaneously convey uplink transmission and downlink transmission. Some wireless communication systems may only support full-duplex operation by the network entity (rather than by the UE). However, regardless of using half-duplex operation or full-duplex operation, the wireless device (UE or network entity) may experience cross-link interference (CLI). However, the degree of CLI that may occur during SBFD symbols and during non-SBFD symbols (e.g., during SBFD operation or non-SBFD operation between wireless devices) may be different.
[0043] The techniques described herein can support separate CLI measurement and reporting procedures based on whether the measured CLI occurs during SBFD symbols or non-SBFD symbols. In some examples, a UE experiencing inter-UE CLI, a network entity experiencing gNB-gNB CLI, or both can use different CLI measurement and reporting procedures. In such cases, a wireless device (e.g., a UE, a network entity) can receive signaling indicating a set of resources (e.g., resource configuration) for performing CLI measurement during one or more SBFD symbols or non-SBFD symbols. The set of resources can be different based on whether the CLI is observed during the SBFD symbol or the non-SBFD symbol. Additionally, the set of resources that the wireless device can use to report CLI measurement may be different. In some examples, different sets of resources can include more CLI resources for SBFD symbols than for non-SBFD symbols. Additionally, more resources can be allocated for non-SBFD symbols in which the device may experience misaligned TDD cells (e.g., overlapping cells with misaligned TDD formats) compared to non-SBFD symbols in which the device experiences aligned time-division duplex (TDD) cells.
[0044] Aspects of the subject matter described herein can be realized to achieve one or more of the following potential improvements, among others. The techniques employed by the described wireless devices (e.g., UEs and network entities) can enable the wireless devices to enhance system capacity, improve resource utilization, and increase spectral efficiency, as the wireless devices can use the indicated resource sets to more efficiently measure and report CLI. Additionally, the described techniques can implement flexible and dynamic uplink resource adaptation and downlink resource adaptation based on uplink traffic and downlink traffic, which can improve SBFD communication and other benefits.
[0045] Aspects of the present disclosure are first described in the context of a wireless communication system. Then, aspects of the present disclosure are described in the context of network architectures, CLI configurations, and process flows. Aspects of the present disclosure are further illustrated and described by and with reference to apparatus diagrams, system diagrams, and flowcharts related to CLI reference signal configurations for each resource type.
[0046] Figure 1 An example of a wireless communication system 100 supporting CLI reference signal configurations for each resource type in accordance with one or more aspects of the present disclosure is illustrated. The wireless communication system 100 can 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 can be a Long Term Evolution (LTE) network, an LTE-Advanced (LTE-A) network, an LTE-A Pro network, a New Radio (NR) network, or a network operating according to other system and radio technologies (including future system and radio technologies not explicitly mentioned herein).
[0047] The network entities 105 can be dispersed throughout a geographical area to form the wireless communication system 100 and can include devices in different forms or having different capabilities. In various examples, the network entities 105 can be referred to as network elements, mobility elements, radio access network (RAN) nodes, or network equipment, among other names. In some examples, the network entities 105 and the UEs 115 can communicate wirelessly via one or more communication links 125 (e.g., radio frequency (RF) access links). For example, the network entity 105 can support a coverage area 110 (e.g., a geographical coverage area) within which the UEs 115 and the network entity 105 can establish one or more communication links 125. The coverage area 110 can be an example of a geographical area within which the network entity 105 and the UEs 115 can support the conveyance of signals according to one or more radio access technologies (RATs).
[0048] UE 115 can be dispersed throughout the coverage area 110 of the wireless communication system 100, and each UE 115 can be stationary or mobile, or stationary and mobile at different times. The UE 115 can be a device in different forms or with different capabilities. Figure 1 Some example UEs 115 are illustrated therein. The UEs 115 described herein may be capable of supporting communication with various types of devices (such as other UEs 115 or network entities 105 as Figure 1 shown).
[0049] As described herein, a node of the wireless communication system 100 (which may be referred to as a network node or a wireless node) can be a network entity 105 (e.g., any network entity described herein), a UE 115 (e.g., any UE described herein), a network controller, a device, an equipment, a computing system, one or more components, or another suitable processing entity configured to perform any of the techniques described herein. For example, the node can be a UE 115. As another example, the node can be a network entity 105. As yet another example, a first node can be configured to communicate with a second node or a third node. In one aspect of this example, the first node can be a UE 115, the second node can be a network entity 105, and the third node can be a UE 115. In another aspect of this example, the first node can be a UE 115, the second node can be a network entity 105, and the third node can be a network entity 105. In other aspects of this example, the first node, the second node, and the third node can be different from these examples. Similarly, references to UEs 115, network entities 105, devices, equipment, computing systems, etc. can include the disclosure of UEs 115, network entities 105, devices, equipment, computing systems, etc. as nodes. For example, the disclosure that a UE 115 is configured to receive information from a network entity 105 also discloses that a first node is configured to receive information from a second node.
[0050] In some examples, network entity 105 may communicate with core network 130, or 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 link 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 a midhaul interface protocol) or fronthaul communication link 168 (e.g., according to a 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), and other examples or various combinations thereof. UE 115 may communicate with core network 130 via communication link 155.
[0051] One or more of the network entities 105 described herein may include or may be referred to as base station 140 (e.g., transceiver base station, radio base station, NR base station, access point, radio transceiver, NodeB, eNodeB (eNB), next generation NodeB, or gigabit NodeB (any of which may be referred to as gNB), 5G NB, next generation eNB (ng-eNB), home NodeB, home eNodeB, or other suitable terms). In some examples, network entity 105 (e.g., base station 140) may be implemented in an integrated (e.g., monolithic, stand-alone) 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).
[0052] In some examples, network entity 105 may be implemented in a split architecture (e.g., split base station architecture, split RAN architecture), which may be configured to utilize a protocol stack physically or logically distributed between 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 (near RT RIC), a non-real-time RIC (non RT RIC)), a service management and orchestration (SMO) 180 system, or any combination thereof. The RU 170 may also be referred to as a radio head, an intelligent radio head, a remote radio head (RRH), a remote radio unit (RRU), or a transmit receive point (TRP). One or more components of network entity 105 in a split 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 of a split RAN architecture may be implemented as virtual units (e.g., a virtual CU (VCU), a virtual DU (VDU), a virtual RU (VRU)).
[0053] The functional split between the CU 160, DU 165, and RU 170 is flexible and can support different functions, depending on which functions are performed at the CU 160, DU 165, or RU 170 (e.g., network layer functions, protocol layer functions, baseband functions, RF functions, and any combination thereof). For example, a functional split of the protocol stack can be employed between the CU 160 and DU 165 such that the CU 160 can support one or more layers of the protocol stack and the DU 165 can support one or more different layers of the protocol stack. In some examples, the CU 160 can host higher protocol layer (e.g., layer 3 (L3), layer 2 (L2)) functions and signaling (e.g., radio resource control (RRC), service data adaptation protocol (SDAP), packet data convergence protocol (PDCP)). The CU 160 can be connected to one or more DU 165s or RU 170s, and one or more DU 165s or RU 170s 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) functions and signaling, and can each be at least partially controlled by the CU 160. Additionally or alternatively, a functional split of the protocol stack can be employed between the DU 165 and RU 170 such that the DU 165 can support one or more layers of the protocol stack and the RU 170 can support one or more different layers of the protocol stack. The DU 165 can support one or more different cells (e.g., via one or more RU 170s). In some cases, the functional split between the CU 160 and DU 165 or between the DU 165 and RU 170 can be within a protocol layer (e.g., some functions of a protocol layer can be performed by one of the CU 160, DU 165, or RU 170, while other functions of that protocol layer are performed by a different one of the CU 160, DU 165, or RU 170). The CU 160 can be further functionally split into a CU control plane (CU-CP) and a CU user plane (CU-UP) function. The CU 160 can be connected to one or more DU 165s via an intermediate transport communication link 162 (e.g., F1, F1-c, F1-u), and the DU 165 can be connected to one or more RU 170s via a fronthaul communication link 168 (e.g., open fronthaul (FH) interface). In some examples, the intermediate transport communication link 162 or the fronthaul communication link 168 can be implemented according to the interfaces (e.g., channels) between the layers of the protocol stack, which are supported by the respective network entities 105 communicating via these communication links.
[0054] In a wireless communication system (e.g., wireless communication system 100), the infrastructure and spectrum resources for radio access may support wireless backhaul link capabilities to supplement a wired backhaul connection and thus provide 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 DUs 165 or one or more RUs 170 may be partially controlled by one or more CUs 160 associated with a 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 nodes 104) via the supported access and backhaul links (e.g., backhaul communication link 120). An 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 antenna set for relaying communications with the UE 115 or may share the same antenna (e.g., of an RU 170 of the IAB node 104) for access via the DU 165 of the IAB node 104 (e.g., referred to as a virtual IAB-MT (vIAB-MT)). In some examples, the IAB node 104 may include a DU 165 that supports communication links with additional entities (e.g., IAB nodes 104, UEs 115) within a relay chain or configuration (e.g., downstream) of the access network. In such cases, one or more components of a split RAN architecture (e.g., one or more IAB nodes 104 or components of an IAB node 104) may be configured to operate in accordance with the techniques described herein.
[0055] For example, the access network (AN) or RAN may include communication between an access node (e.g., an IAB donor), an IAB node 104, and one or more UEs 115. The IAB donor may facilitate a connection between the core network 130 and the AN (e.g., via a wired or wireless connection to the core network 130). That is, the IAB donor may refer to a RAN node having a wired or wireless connection to the core network 130. The IAB donor may include a CU 160 and at least one DU 165 (e.g., and a RU 170), in which case the CU 160 may communicate with the core network 130 via an interface (e.g., a backhaul link). The IAB donor and the IAB node 104 may communicate via an F1 interface according to a protocol that defines signaling messages (e.g., the F1 AP protocol). Additionally or alternatively, the CU 160 may communicate with the core network via an interface (which may be an example of a part of the backhaul link), and may communicate with other CUs 160 (e.g., CUs 160 associated with alternative IAB donors) via an Xn-C interface (which may be an example of a part of the backhaul link).
[0056] The IAB node 104 may refer to a RAN node that provides IAB functionality (e.g., access for UEs 115, wireless self-backhaul capability). The DU 165 may act as a distributed scheduling node towards the child nodes associated with the IAB node 104, and the IAB-MT may act as a scheduled node towards the parent node associated with the IAB node 104. That is, the IAB donor may be referred to as a parent node that communicates with one or more child nodes (e.g., the IAB donor may relay transmissions for UEs via one or more other IAB nodes 104). Additionally or alternatively, depending on the relay chain or configuration of the AN, the IAB node 104 may also be referred to as a parent node or a child node of other IAB nodes 104. Thus, the IAB-MT entity of the IAB node 104 may provide a Uu interface for a child IAB node 104 to receive signaling from a parent IAB node 104, and a DU interface (e.g., the DU 165) may provide a Uu interface for a parent IAB node 104 to signal to a child IAB node 104 or a UE 115.
[0057] For example, the IAB node 104 can be referred to as a parent node supporting communication for a child IAB node or as a child IAB node associated with an IAB donor or both. The IAB donor can include a CU 160 having a wired or wireless connection to the core network 130 (e.g., a fronthaul communication link 120) and can act as a parent node of the IAB node 104. For example, the DU 165 of the IAB donor can relay transmissions to the UE 115 via the IAB node 104, or can signal transmissions directly to the UE 115, or both. The CU 160 of the IAB donor can signal the communication link establishment to the IAB node 104 via the F1 interface, and the IAB node 104 can schedule transmissions (e.g., transmissions relayed from the IAB donor to the UE 115) via the DU 165. That is, data can be relayed to and from the IAB node 104 via signaling over the NR Uu interface to the MT of the IAB node 104. Communication with the IAB node 104 can be scheduled by the DU 165 of the IAB donor, and communication with the IAB node 104 can be scheduled by the DU 165 of the IAB node 104.
[0058] In the case where the techniques described herein are applied in the context of a split RAN architecture, one or more components of the split RAN architecture can be configured to support per-resource type CLI reference signal configurations as described herein. For example, some operations described as being performed by the UE 115 or the network entity 105 (e.g., the base station 140) can additionally or alternatively be performed by one or more components of the split RAN architecture (e.g., the IAB node 104, the DU 165, the CU 160, the RU 170, the RIC 175, the SMO 180).
[0059] The UE 115 can include or can be referred to as a mobile device, a wireless device, a remote device, a handheld device, or a subscriber device, or some other suitable term, where "device" can also be referred to as a unit, a station, a terminal, or a client, etc. The UE 115 can also include or can be referred to as a personal electronic device, such as a cellular phone, a personal digital assistant (PDA), a tablet computer, a laptop computer, or a personal computer. In some examples, the UE 115 can include or can be referred to as a wireless local loop (WLL) station, an Internet of Things (IoT) device, an Internet of Everything (IoE) device, or a machine type communication (MTC) device, etc., which can be implemented in various objects such as appliances or vehicles, meters, etc.
[0060] The UE 115 described herein may be capable of communicating with various types of devices, such as other UEs 115 that may sometimes act as relays, and network entities 105 and network equipment including macro eNBs or gNBs, small cell eNBs or gNBs, or relay base stations, etc., as Figure 1 shown.
[0061] The UE 115 and the network entity 105 may 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" may refer to a set of RF spectrum resources having a defined physical layer structure for supporting the communication link 125. For example, a carrier for the communication link 125 may include a portion (e.g., bandwidth part (BWP)) of an RF spectrum band 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 for coordinating carrier operation, user data, or other signaling. The wireless communication system 100 may support communication with the UE 115 using carrier aggregation or multi-carrier operation. According to a carrier aggregation configuration, the UE 115 may be configured to have multiple downlink component carriers and one or more uplink component carriers. Carrier aggregation may be used for both frequency division duplex (FDD) and time division duplex (TDD) component carriers. Communication between the network entity 105 and other devices may refer to communication between these devices and any part (e.g., entity, sub-entity) of the network entity 105. For example, the terms "transmit", "receive", or "communicate" when referring to the network entity 105 may refer to any part of the network entity 105 of the RAN (e.g., base station 140, CU 160, DU 165, RU 170) communicating with another device (e.g., directly or via one or more other network entities 105).
[0062] In some examples, such as in a carrier aggregation configuration, a carrier may also have acquisition signaling or control signaling for coordinating the operation of other carriers. A carrier may be associated with a frequency channel (e.g., evolved universal terrestrial radio access (E-UTRA) absolute RF channel number (EARFCN)) and may be identified according to a channel raster for discovery by the UE 115. A carrier may operate in stand-alone mode, in which case initial acquisition and connection may be performed by the UE 115 via the carrier, or the carrier may operate in non-stand-alone mode, in which case a different carrier (e.g., of the same or different radio access technology) is used to anchor the connection.
[0063] The communication link 125 shown in the wireless communication system 100 may include a downlink transmission (e.g., forward link transmission) from the network entity 105 to the UE 115, an uplink transmission (e.g., reverse link transmission) from the UE 115 to the 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 downlink communication and uplink communication (e.g., in TDD mode).
[0064] 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 "system bandwidth" of the carrier or the wireless communication system 100. For example, the carrier bandwidth may be one of a set of bandwidths of carriers of a particular radio access technology (e.g., 1.4 megahertz (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., the network entity 105, the UE 115, or both) may have a hardware configuration that supports communication using a specific carrier bandwidth, or may be capable of being configured to support communication using one of a set of carrier bandwidths. In some examples, the wireless communication system 100 may include a network entity 105 or a 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.
[0065] 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 spread OFDM (DFT-S-OFDM)). In a system employing an MCM technique, a resource element may refer to the resource of one symbol period (e.g., the duration of one modulation symbol) and one subcarrier, in which case the symbol period and the 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 large number of resource elements (e.g., during the transmission duration) and a relatively high-order modulation scheme may correspond to a relatively high communication rate. Wireless communication resources may refer to a combination of RF spectrum resources, time 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 for communication with the UE 115.
[0066] The time interval for the network entity 105 or the UE 115 can be expressed as a multiple of a basic time unit, which may refer, for example, to the sampling period T s =1 / (Δfmax ·N f ) seconds, where Δf max can represent the supported subcarrier spacing, and N f can represent the supported discrete Fourier transform (DFT) size. The time intervals of the communication resources can be organized according to radio frames each having 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).
[0067] Each frame may include a plurality of consecutively numbered subframes or time slots, and each subframe or time slot may have the same duration. In some examples, a frame may be divided (e.g., in the time domain) into subframes, and each subframe may also be divided into a certain 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 certain 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, a time slot may be further divided into a plurality of mini-slots associated with one or more symbols. Excluding the cyclic prefix, each symbol period may be associated with one or more (e.g., N f ones) sampling periods. The duration of a symbol period may depend on the subcarrier spacing or the operating frequency band.
[0068] A subframe, time slot, mini-slot, or symbol may be the smallest scheduling unit (e.g., in the time domain) of the wireless communication system 100 and may be referred to as a transmission time interval (TTI). In some examples, the TTI duration (e.g., the number of symbol periods in the TTI) may be variable. Additionally or alternatively, the smallest scheduling unit of the wireless communication system 100 may be dynamically selected (e.g., in a burst of shortened TTIs (sTTIs)).
[0069] Physical channels can be reused according to various techniques to communicate using a carrier. For example, one or more of time division multiplexing (TDM) techniques, frequency division multiplexing (FDM) techniques, or hybrid TDM-FDM techniques can be used to multiplex physical control channels and physical data channels to signal via a downlink carrier. The control region of a 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 a carrier or a subset of the system bandwidth. One or more control regions (e.g., CORESETs) can be configured for a set of UEs 115. For example, one or more of the UEs 115 can monitor or search a control region for control information according to 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 cascaded manner. The aggregation level of a control channel candidate can refer to the amount of control channel resources (e.g., control channel elements (CCEs)) associated with the coded information for a control information format with a given payload size. The search space sets can include: a common search space set configured to transmit control information to multiple UEs 115, and a UE-specific search space set for transmitting control information to a specific UE 115.
[0070] The network entity 105 can provide communication coverage via one or more cells (e.g., macro cells, small cells, hotspots, or other types of cells or any combination thereof). The term "cell" can refer to a logical communication entity for communicating with the network entity 105 (e.g., using a carrier) and can be associated with an identifier (e.g., a physical cell identifier (PCID), a virtual cell identifier (VCID), or other identifier) for distinguishing adjacent cells. In some examples, a cell can also refer to a coverage area 110 or a portion of the coverage area 110 (e.g., a sector) on which the logical communication entity operates. Depending on various factors such as the capabilities of the network entity 105, the scope of such cells can range from a smaller area (e.g., a structure, a subset of a structure) to a larger area. For example, a cell can be or can include a building, a subset of a building, or an external space between or overlapping the coverage areas 110, etc.
[0071] Macro cells generally cover a relatively large geographical area (e.g., with a radius of several kilometers) and can allow unrestricted access for UEs 115 that have a service subscription with the network provider that supports the macro cell. Small cells can be associated with a lower power network entity 105 (e.g., a lower power base station 140) (compared to macro cells), and small cells can operate using the same or different (e.g., licensed, unlicensed) frequency bands as macro cells. Small cells can provide unrestricted access to UEs 115 that have a service subscription with the network provider, or can provide restricted access to UEs 115 that are associated with the small cell (e.g., UEs 115 in a closed subscriber group (CSG), UEs 115 associated with users in a home or office). The network entity 105 can support one or more cells and can also use one or more component carriers to support communication via one or more cells.
[0072] In some examples, a carrier can support multiple cells and can be configured with different cells according to different protocol types that can provide access for different types of devices (e.g., MTC, narrowband IoT (NB-IoT), enhanced mobile broadband (eMBB)).
[0073] In some examples, the network entity 105 (e.g., base station 140, RU 170) can be mobile and thus provide communication coverage for a mobile coverage area 110. In some examples, different coverage areas 110 associated with different technologies can overlap, but different coverage areas 110 can be supported by the same network entity 105. In some other examples, overlapping coverage areas 110 associated with different technologies can be supported by different network entities 105. The wireless communication system 100 can 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.
[0074] Some UEs 115 can be configured to operate in a power consumption reduction mode, such as half-duplex communication (e.g., a mode that supports one-way communication via transmission or reception but not concurrent transmission and reception). In some examples, half-duplex communication can be performed at a reduced peak rate. Other energy saving techniques for UEs 115 include: entering a power saving deep sleep mode when not participating in active communication, operating using limited bandwidth (e.g., according to narrowband communication), or a combination of these techniques. For example, some UEs 115 can be configured to operate using a narrowband protocol type that is associated with a defined portion or range (e.g., a set of subcarriers or resource blocks (RBs)) within a carrier, within a guard band of the carrier, or outside the carrier.
[0075] The wireless communication system 100 can be configured to support ultra-reliable communication or low-latency communication or various combinations thereof. For example, the wireless communication system 100 can be configured to support ultra-reliable low-latency communication (URLLC). The UE 115 can be designed to support ultra-reliable, low-latency, or critical functions. Ultra-reliable communication can include private communication or group communication and can be supported by one or more services such as push-to-talk, video, or data. Support for ultra-reliable, low-latency functions can include prioritization of services, and such services can be used for public safety or general commercial applications. The terms ultra-reliable, low-latency, and ultra-reliable low-latency can be used interchangeably herein.
[0076] In some examples, the UE 115 can be configured to communicate directly with other UEs 115 via a device-to-device (D2D) communication link 135 (e.g., according to a peer-to-peer (P2P), D2D, or sidelink protocol). In some examples, one or more UEs 115 performing D2D communication in a group can be within the coverage area 110 of a network entity 105 (e.g., base station 140, RU 170), and the network entity can support aspects of such D2D communication configured (e.g., scheduled) by the network entity 105. In some examples, one or more UEs 115 of such a group can be outside the coverage area 110 of the network entity 105 or can otherwise be unable or not configured to receive transmissions from the network entity 105. In some examples, a group of UEs 115 communicating via D2D communication can support a one-to-many (1:M) system, where each UE 115 sends to each of the other UEs 115 in the group. In some examples, the network entity 105 can facilitate the scheduling of resources for D2D communication. In some other examples, D2D communication can be performed between UEs 115 without involving the network entity 105.
[0077] The core network 130 can provide user authentication, access authorization, tracking, Internet Protocol (IP) connectivity, and other access, routing, or mobility functions. The core network 130 can be an evolved packet core (EPC) or a 5G core (5GC), which can include at least one control plane entity for managing access and mobility (e.g., a mobility management entity (MME), an access and mobility management function (AMF)) and at least one user plane entity for routing packets or interconnecting to an external network (e.g., a serving gateway (S-GW), a packet data network (PDN) gateway (P-GW), or a user plane function (UPF)). The control plane entity can manage non-access stratum (NAS) functions, such as the mobility, authentication, and bearer management of the UE 115 served by a network entity 105 (e.g., a base station 140) associated with the core network 130. User IP packets can be passed through the user plane entity, which can provide IP address allocation and other functions. The user plane entity can be connected to the IP services 150 of one or more network operators. The IP services 150 can include access to the Internet, an intranet, an IP multimedia subsystem (IMS), or packet-switched streaming services.
[0078] The wireless communication system 100 can operate using one or more frequency bands that can be in the range of 300 megahertz (MHz) to 300 gigahertz (GHz). Generally, the region from 300 MHz to 3 GHz is referred to as the ultra-high frequency (UHF) region or the decimeter band because, in terms of length, the wavelength range is from approximately one decimeter to one meter. UHF waves can be blocked or redirected by buildings and environmental features (which can be referred to as clusters), but these waves can be sufficient to penetrate structures so that macro cells can provide service to UEs 115 located indoors. Compared with communication using smaller frequencies and longer wavelengths in the high 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 kilometers).
[0079] The wireless communication system 100 can utilize licensed and unlicensed RF spectrum bands. For example, the wireless communication system 100 can use an unlicensed band (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 using an unlicensed RF spectrum band, devices such as the network entity 105 and the UE 115 can employ carrier sensing for collision detection and avoidance. In some examples, the operation using the unlicensed band can be based on a carrier aggregation configuration in combination with the operation of a component carrier using a licensed band (e.g., LAA). The operation using the unlicensed spectrum can include downlink transmissions, uplink transmissions, peer-to-peer (P2P) transmissions, or device-to-device (D2D) transmissions, etc.
[0080] The network entity 105 (e.g., base station 140, RU 170) or the UE 115 may be equipped with multiple antennas, which may be used to employ techniques such as transmit diversity, receive diversity, multiple-input multiple-output (MIMO) communication, or beamforming. The antennas of the network entity 105 or the UE 115 may be located within one or more antenna arrays or antenna panels, which may 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 at an antenna tower. In some examples, the antennas or antenna arrays associated with the network entity 105 may be located at different geographical locations. The network entity 105 may include an antenna array having a set of antenna ports in multiple rows and columns that the network entity 105 can use for beamforming to support communication with the UE 115. Similarly, the UE 115 may include one or more antenna arrays that may support various MIMO or beamforming operations. Additionally or alternatively, the antenna panel may support RF beamforming for signals transmitted via the antenna ports.
[0081] Beamforming (which may also be referred to as spatial filtering, directional transmission, or directional reception) is a signal processing technique that can be used at a transmitting device or a receiving device (e.g., network entity 105, UE 115) to shape or direct an antenna beam (e.g., transmit beam, receive beam) along a spatial path between the transmitting device and the receiving device. Beamforming can be achieved by combining signals conveyed via the antenna elements of an antenna array such that some signals propagating in a particular direction relative to the antenna array experience constructive interference while other signals experience destructive interference. The adjustment of the signals conveyed via the antenna elements may include the transmitting device or the receiving device applying an amplitude offset, a phase offset, or both to the signals carried via the antenna elements associated with the device. The adjustment associated with each of these antenna elements may be defined by a set of beamforming weights associated with a particular direction (e.g., relative to the antenna array of the transmitting device or the receiving device or relative to some other direction).
[0082] Some UEs 115 and network entities 105 may support SBFD operation, in which a wireless device may perform simultaneous transmission and reception of downlink transmissions and uplink transmissions on a sub-band basis. That is, the wireless device may use different frequency sub-bands to simultaneously convey uplink transmissions and downlink transmissions. In some cases, the UEs 115 and network entities 105 may experience CLI, such as inter-UE CLI or inter-gNB CLI, which may occur when two corresponding wireless devices transmit and receive simultaneously in the same frequency band. Therefore, if communication is performed using SBFD operation, the wireless device may experience different degrees of CLI during SBFD resources and non-SBFD resources.
[0083] The wireless communication system 100 may support separate CLI measurement and reporting procedures based on whether the measured CLI occurs during SBFD symbols or non-SBFD symbols. In some examples, a wireless device (e.g., a UE 115 experiencing inter-UE CLI or a network entity 105 experiencing inter-gNB CLI) may receive information indicating multiple resource sets for performing CLI measurements during one or more SBFD symbols or one or more non-SBFD symbols. In some examples, the resource sets may vary depending on how many CLI resources the wireless device may use to perform CLI measurements. The wireless device may use a resource set to perform a CLI measurement based on the type of symbol in which the CLI measurement is performed (e.g., SBFD or non-SBFD). In some examples, the wireless device may also use an additional resource set to send a report indicating the result of the CLI measurement based on whether the CLI measurement is performed in an SBFD symbol or a non-SBFD symbol.
[0084] Figure 2 An example of a network architecture 200 (e.g., a decomposed base station architecture, a decomposed RAN architecture) that supports CLI reference signal configuration per resource type in accordance with one or more aspects of the present disclosure is illustrated. The network architecture 200 may illustrate an example for implementing one or more aspects of the wireless communication system 100. The network architecture 200 may include one or more CUs 160-a, which may communicate directly with the core network 130-a via a backhaul communication link 120-a, or indirectly with the core network 130-a through one or more decomposed network entities 105 (e.g., a near RT RIC 175-b via an E2 link or a non-RT RIC 175-a associated with an SMO 180-a (e.g., an SMO framework) or both). The CU 160-a may communicate with one or more DUs 165-a via a respective midhaul communication link 162-a (e.g., an F1 interface). The DU 165-a may communicate with one or more RUs 170-a via a respective fronthaul communication link 168-a. The RU 170-a may be associated with a respective coverage area 110-a and may communicate with a UE 115-a via one or more communication links 125-a. In some implementations, the UE 115-a may be served by multiple RUs 170-a simultaneously.
[0085] Each network entity 105 in the network entity 105 of the network architecture 200 (e.g., CU 160-a, DU 165-a, RU 170-a, non-RT RIC 175-a, near-RT RIC 175-b, SMO 180-a, Open Cloud (O-Cloud) 205, Open eNB (O-eNB) 210) may include one or more interfaces or may be coupled to one or more interfaces configured to receive or transmit signals (e.g., data, information) via a wired or wireless transmission medium. Each network entity 105 or an associated processor (e.g., a controller) providing instructions to the interfaces of the network entity 105 may be configured to communicate with one or more of the other network entities 105 via the transmission medium. For example, these network entities 105 may include a wired interface configured to receive signals on a wired transmission medium or transmit signals to one or more of the other network entities 105 on a wired transmission medium. Additionally or alternatively, the network entity 105 may include a wireless interface, which may include a receiver, a transmitter, or a transceiver (e.g., an RF transceiver), configured to receive signals on a wireless transmission medium, transmit signals to one or more of the other network entities 105 on a wireless transmission medium, or both.
[0086] In some examples, the CU 160-a may host one or more higher layer control functions. Such control functions may include RRC, PDCP, SDAP, etc. Each control function may be implemented using an interface configured to communicate signals with other control functions hosted by the CU 160-a. The CU 160-a may be configured to handle user plane functionality (e.g., CU-UP), control plane functionality (e.g., CU-CP), or a combination thereof. In some examples, the CU 160-a may be logically split into one or more CU-UP units and one or more CU-CP units. When implemented in an O-RAN configuration, the CU-UP units may communicate bidirectionally with the CU-CP units via an interface such as an E1 interface. As needed, the CU 160-a may be implemented to communicate with the DU 165-a for network control and signaling.
[0087] DU 165-a may correspond to a logical unit that includes one or more functions (e.g., base station functions, RAN functions) for controlling the operation of one or more RUs 170-a. In some examples, DU 165-a may host at least in part one or more aspects of the RLC layer, MAC layer, and PHY layer (e.g., high PHY layer, such as modules for FEC encoding and decoding, scrambling, modulation, and demodulation, etc.), at least in part depending on the functional split, such as those defined by the 3rd Generation Partnership Project (3GPP). In some examples, DU 165-a may also host one or more low PHY layers. Each layer may be implemented using an interface configured to communicate signals with other layers hosted by DU 165-a or with control functions hosted by CU160-a.
[0088] In some examples, lower layer functionality may be implemented by one or more RUs 170-a. For example, an RU 170-a controlled by DU 165-a may correspond to a logical node that hosts at least in part RF processing functions or low PHY layer functions (e.g., performing fast Fourier transform (FFT), inverse FFT (iFFT), digital beamforming, physical random access channel (PRACH) extraction and filtering, etc.) or both, at least in part based on a functional split (such as a lower layer functional split). In such an architecture, RU 170-a may be implemented to handle over-the-air (OTA) communication with one or more UEs 115-a. In some embodiments, the real-time and non-real-time aspects of the control plane and user plane communication with RU 170-a may be controlled by the corresponding DU 165-a. In some examples, such a configuration may enable DU 165-a and CU 160-a to be implemented in a cloud-based RAN architecture (such as a vRAN architecture).
[0089] The SMO 180-a can be configured to support the RAN deployment and provisioning of non-virtualized and virtualized network entities 105. For non-virtualized network entities 105, the SMO 180-a can be configured to support the deployment of dedicated physical resources for RAN coverage requirements, and these dedicated physical resources can be managed via an operation and maintenance interface (e.g., the O1 interface). For virtualized network entities 105, the SMO 180-a can be configured to interact with a cloud computing platform (e.g., the O-Cloud 205) via a cloud computing platform interface (e.g., the O2 interface) to perform network entity lifecycle management (e.g., to instantiate the virtualized network entity 105). Such virtualized network entities 105 can include, but are not limited to, the CU 160-a, the DU 165-a, the RU 170-a, and the near RT RIC 175-b. In some specific implementations, the SMO 180-a can communicate with components configured according to 4G RAN (e.g., via the O1 interface). Additionally or alternatively, in some specific implementations, the SMO 180-a can communicate directly with one or more RUs 170-a via the O1 interface. The SMO 180-a can also include a non-RT RIC 175-a, which is configured to support the functionality of the SMO 180-a.
[0090] The non-RT RIC 175-a can be configured to include logic functions that implement non-real-time control and optimization of RAN elements and resources, artificial intelligence (AI) or machine learning (ML) workflows (including model training and updating, or policy-based steering of applications / features in the near RT RIC 175-b). The non-RT RIC 175-a can be coupled to or communicate with the near RT RIC 175-b (e.g., via the A1 interface). The near RT RIC 175-b can be configured to include logic functions that implement near-real-time control and optimization of RAN elements and resources via data collection and actions on an interface (e.g., via the E2 interface) that connects one or more CUs 160-a, one or more DUs 165-a, or both, and the O-eNB 210 to the near RT RIC 175-b.
[0091] In some examples, to generate an AI / ML model to be deployed in the near-RT RIC 175-b, the non-RT RIC 175-a may receive parameters or external enrichment information from an external server. Such information may be utilized by the near-RT RIC 175-b and may be received at the SMO 180-a or the non-RT RIC 175-a from a non-network data source or from a network function. In some examples, the non-RT RIC 175-a or the near-RT RIC 175-b may be configured to tune RAN behavior or performance. For example, the non-RT RIC 175-a may monitor long-term trends and patterns of performance and employ an AI model or an ML model to perform corrective actions via the SMO 180-a (e.g., via reconfiguration of O1) or via the generation of RAN management policies such as A1 policies.
[0092] The network architecture 200 may support separate CLI measurement and reporting procedures based on whether the UE 115-a measures the CLI during SBFD symbols or non-SBFD symbols. In some examples, a wireless device may receive information indicating multiple resource sets for performing CLI measurements during one or more SBFD symbols or one or more non-SBFD symbols. The wireless device may include the UE 115-a experiencing inter-UE CLI or a network entity 105 experiencing inter-gNB CLI, where the network entity 105 may include one or more of the CU 160-a, DU 165-a, or RU 170-a. In some examples, the resource sets may differ according to how many CLI resources the wireless device may use to perform CLI measurements. The wireless device may perform CLI measurements using a resource set based on the type of symbol in which the CLI measurement is performed (e.g., SBFD or non-SBFD). In some examples, the wireless device may also use an additional resource set to send a report indicating the result of the CLI measurement based on whether the CLI measurement is performed in an SBFD symbol or a non-SBFD symbol.
[0093] Figure 3Illustrates an example of a wireless communication system 300 that supports CLI reference signal configuration for each resource type according to one or more aspects of the present disclosure. In some examples, the wireless communication system 300 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 300 may include a cell 305-a supported by a network entity 105-a and a cell 305-b supported by a network entity 105-b. In some examples, the network entity 105 may correspond to a gNB or a core network, or may include one or more of a CU 160, a DU 165, and an RU 170, as described herein. In some cases, the network entity 105-a may communicate with UEs 115-b and 115-c within the cell 305-a, and the network entity 105-b may communicate with UEs 115-d and 115-e within the cell 305-b. The UE 115 may be an example of a wireless communication device that supports CLI measurement and reporting configuration for SBFD symbols or non-SBFD symbols.
[0094] The wireless communication system 300 may support communication between the UE 115 and the network entity 105. For example, the UE 115-b may send an uplink communication 310-a to the network entity 105-a, and the network entity 105-a may send a downlink communication 315-a to the UE 115-c. Additionally, the UE 115-d may send an uplink communication 310-b to the network entity 105-b, and the network entity 105-b may send a downlink communication 315-b to the UE 115-e. The UE 115 and the network entity 105 may support half-duplex operation or a type of full-duplex operation, such as SBFD operation. For example, if operating using SBFD, the wireless communication device may perform simultaneous transmission and reception of downlink transmissions and uplink transmissions on a subband basis. That is, the wireless communication device may use different frequency subbands to simultaneously convey uplink transmissions and downlink transmissions (e.g., uplink communication 310 and downlink communication 315).
[0095] In some examples, based in part on operating using SBFD operations, the UE 115, network entity 105, and other wireless communication devices in the wireless communication system 300 may experience CLI. For example, UE 115-b and UE 115-c may experience CLI 320-a, and UE 115-d and UE 115-e may experience CLI 320-b, where CLI 320-a and CLI 320-b may be inter-subband, intra-cell CLI (e.g., a type of inter-UE CLI). Additionally, UE 115-c and UE 115-d may experience CLI 330, which may be an inter-subband, inter-cell CLI (e.g., a type of inter-UE CLI). CLI 330 may originate from UE115-c or UE 115-d. In some cases, the network entity 105 may experience CLI 325, which may be an inter-subband, gNB-inter CLI. In some examples, if the UE 115 and the network entity 105 support fully overlapping full-duplex operations, the CLI between the wireless communication devices may include in-band CLI based on each of the wireless communication devices in the wireless communication devices using the same frequency band.
[0096] Wireless communication devices may use the techniques described herein to mitigate inter-UE CLI, gNB-inter CLI, particularly in SBFD scenarios (partially overlapping or fully overlapping). Specifically, the network entity 105 may indicate different resource configurations for the UE 115 to measure and report CLI, which may enable the wireless communication devices to enhance system capacity, improve resource utilization, and improve spectral efficiency.
[0097] The UE 115 (e.g., UE 115-c) may receive information indicating corresponding resource sets for performing CLI measurements during SBFD or non-SBFD symbols. For example, UE 115-c may receive first information indicating a first resource set for performing CLI measurements during one or more SBFD resources (e.g., SBFD symbols) and second information indicating a second resource set for performing CLI measurements during one or more non-SBFD resources (e.g., half-duplex symbols). That is, since the UE 115 or the network entity 105 may support different resource types as described herein with reference to Figure 4 the wireless communication devices may use different CLI mitigation techniques configured for each resource type. In some examples, the first information and the second information may be included in the same signaling (e.g., lower layer signaling) or different signaling, and may be sent separately for inter-UE CLI measurements and gNB-inter CLI measurements.
[0098] In some cases, the UE 115 may distinguish the first information from the second information based on the periodicity of the first resource set being associated with the corresponding periodicity of one or more SBFD symbols. For example, if the first resource set includes half-duplex symbols or other symbols in addition to the SBFD symbols, the UE 115 may exclude the symbols other than the one or more SBFD symbols from the periodicity, thereby distinguishing between the resource configurations for the SBFD symbols and the non-SBFD symbols.
[0099] In addition to the resources for performing CLI measurements, the UE 115 may also receive information indicating a corresponding additional resource set for reporting the results of the CLI measurements. For example, the UE 115 may receive the first information indicating a first additional resource set for reporting the results of the CLI measurements during one or more SBFD symbols and the second information indicating a second additional resource set for reporting the results of the CLI measurements during one or more non-SBFD symbols.
[0100] The UE 115 may perform CLI measurements using the first resource set or the second resource set based on in which type of symbols the UE 115 performs the CLI measurements. For example, if the UE 115 performs CLI measurements in one or more SBFD symbols, the UE 115 may use the first resource set, or if the UE 115 performs CLI measurements in one or more non-SBFD symbols, the UE may use the second resource set. In some cases, performing CLI measurements may include performing received signal strength indicator (RSSI) measurements, signal-to-interference-plus-noise ratio (SINR) measurements, reference signal received power (RSRP) measurements, or a combination thereof.
[0101] In some cases, in non-SBFS symbols, if there is an aligned TDD format (e.g., time slot format) across the cells 305, there may be a lack of CLI impact. Alternatively, a non-aligned TDD format (e.g., dynamic TDD scenario) across the cells 305 may result in CLI 325 (e.g., inter-cell, inter-UE CLI). Therefore, the UE 115 may perform CLI measurements during non-SBFD symbols based on the non-alignment of the TDD format applied by the UE 115 and one or more additional wireless communication devices (e.g., UE 115, network entity 105) during the non-SBFD symbols. In such cases, the CLI level may be different and lower for non-SBFD symbols compared to SBFD symbols. In this way, the amount (e.g., number) of the second resource set allocated for performing CLI measurements during non-SBFD symbols may be based on whether the TDD format applied by the UE 115 and one or more additional wireless communication devices during the non-SBFD symbols is aligned or non-aligned.
[0102] In some examples, if the applied TDD format is aligned, the wireless communication device may not allocate CLI reference signal resources. Alternatively, for example, in a case where UEs 115 may be relatively closely clustered, the wireless communication device may allocate fewer CLI reference signal resources for an unaligned TDD format. That is, compared to the intra-cell, inter-UE CLI (e.g., CLI 320) for SBFD symbols, the inter-cell, inter-UE CLI (e.g., CLI 325) may have less impact on unaligned non-SBFD symbols because the inter-UE distance may be smaller for SBFD symbols within cell 305. Therefore, a first amount (e.g., number) of a first resource set allocated for performing CLI measurements during SBFD symbols may be greater than a second amount (e.g., number) of a second resource set allocated for performing CLI measurements during non-SBFD symbols.
[0103] In some examples, a wireless communication device (e.g., gNB or network entity 105 for intra-cell CLI, or CU 160 or OAM for inter-cell inter-UE CLI across cells) may configure separate inter-UE CLI reference signal measurement resources and reporting resources across SBFD symbols and non-SBFD symbols per cell 305. That is, the first resource set and the second resource set may be indicated per cell 305.
[0104] After performing CLI measurements in one or more SBFD symbols or one or more non-SBFD symbols, UE 115 may use the corresponding resources to send a report indicating the result of the CLI measurement. For example, UE 115 may use a first additional resource set to send a report indicating the result of the CLI measurement based on performing the CLI measurement in SBFD symbols, or use a second additional resource set to send a report indicating the result of the CLI measurement based on performing the CLI measurement in non-SBFD symbols.
[0105] Figure 4 Examples of CLI 400 and CLI 401 supporting per-resource-type CLI reference signal configuration in accordance with one or more aspects of the present disclosure are illustrated. In some examples, CLI 400 may occur between UEs 115-f, 115-g, and 115-h, where UE 115 may be an example of a wireless communication device supporting SBFD operation. CLI 401 may occur between network entities 105-c and 105-d, where network entity 105 may be an example of a gNB or core network supporting SBFD operation and may include one or more of CU 160, DU 165, or RU 170 as described herein.
[0106] UE 115s may each support some downlink symbols 405 and some uplink symbols 410 across one or more frequency subbands for SBFD operation. The downlink symbols 405 and the uplink symbols 410 may be a combination of half-duplex symbols (which may span the full frequency band, such as downlink symbol 405-i) and SBFD symbols (which may span subbands, such as downlink symbol 405-a). In some examples, the CLI 400 may include an intra-cell, inter-UE CLI 415 between UE 115-f and UE 115-g, and this intra-cell, inter-UE CLI may be an example of the CLI 320 described herein with reference to Figure 3 That is, UE 115-f and UE 115-g may operate in the same cell. The intra-cell, inter-UE CLI 415 may originate from an uplink subband associated with UE 115-g (including uplink symbol 410-a) and may affect a downlink subband associated with UE 115-f (including downlink symbols 405-a and 405-b).
[0107] In some examples, for inter-UE CLI measurements during one or more SBFD symbols, a wireless communication device (e.g., a network entity) may configure an inter-UE CLI reference signal to measure the inter-UE CLI reference signal in one or more downlink subbands for inter-subband leakage and in one or more uplink subbands for intra-subband CLI, and this intra-subband CLI may affect the dynamic receive range, the received AGC blockage, or both. For example, UE 115-f may perform at least one of an RSSI measurement or a SINR measurement for one or more downlink subbands in an SBFD symbol including downlink symbols 405-a and 405-b. In doing so, UE 115 may measure the CLI caused by inter-subband leakage caused by an uplink transmission from an adjacent wireless communication device (e.g., UE 115-g) during an SBFD symbol (e.g., uplink symbol 410-a). Additionally or alternatively, UE 115-f may perform at least one of an RSSI measurement or an RSRP measurement for one or more uplink subbands in an SBFD symbol to measure the intra-subband CLI caused by the uplink transmission.
[0108] Additionally or alternatively, the CLI 400 may include an inter-cell, inter-UE CLI 420 between UE 115-f and UE 115-h, and this inter-cell, inter-UE CLI may be as described herein with reference to Figure 3An example of the described CLI 325. That is, UEs 115-f and 115-h may operate in different cells. The inter-cell, inter-UE CLI 420 may originate from a downlink sub-band (including the uplink symbol 410-b) associated with UE 115-h and may affect a downlink sub-band (including downlink symbols 405-c and 405-d) associated with UE 115-f.
[0109] In some examples, the CLI 401 may include an inter-gNB CLI 425 (e.g., an inter-sub-band, inter-gNB CLI), which may be an example of the CLI 330 as described herein with reference to Figure 3 An example of the described CLI 330. The inter-gNB CLI 425 may originate from and affect two network entities 105. For example, the inter-gNB CLI 425 may originate from a downlink sub-band (including downlink symbols 405-e and 405-f) associated with network entity 105-c and may affect an uplink sub-band (which may include uplink symbol 410-c) associated with network entity 105-d. Additionally or alternatively, the inter-gNB CLI 425 may originate from a downlink sub-band (including downlink symbols 405-g and 405-h) associated with network entity 105-d and may affect an uplink sub-band (including uplink symbol 410-d) associated with network entity 105-c.
[0110] As described herein, for inter-gNB CLI measurements during one or more SBFD symbols, a wireless communication device (e.g., network entity 105) may configure an inter-gNB CLI reference signal to measure the inter-gNB CLI reference signal in one or more uplink sub-bands for inter-sub-band leakage and in one or more downlink sub-bands for in-sub-band CLI, which may affect the dynamic receive range, receive AGC blocking, or both. For example, network entity 105-d may perform at least one of an RSSI measurement or a SINR measurement for one or more uplink sub-bands in an SBFD symbol including uplink symbol 410-c. In doing so, network entity 105-d may measure the CLI caused by inter-sub-band leakage due to downlink transmissions from an adjacent wireless communication device (e.g., network entity 105-c) during the SBFD symbol (e.g., uplink symbol 410-d). Additionally or alternatively, network entity 105-c may perform at least one of an RSSI measurement or an RSRP measurement for one or more uplink sub-bands in an SBFD symbol to measure the in-sub-band CLI caused by uplink transmissions.
[0111] Figure 5An example of a process flow 500 that supports per-resource type CLI reference signal configuration in accordance with one or more aspects of the present disclosure is illustrated. The process flow 500 may implement aspects of the wireless communication system 100 or may be implemented by aspects of the wireless communication system 100. For example, the process flow 500 may illustrate operations between a UE 115-i and a network entity 105-e, which may be examples of the corresponding devices described herein. In the following description of the process flow 500, the operations between the UE 115-i and the network entity 105-e may be sent in an order different from the illustrated example, or the operations performed by the UE 115-i and the network entity 105-e may be performed in a different order or at different times. Some operations may also be omitted from the process flow 500, and additional operations may be added to the process flow 500.
[0112] At 505, the UE 115-i (e.g., a wireless communication device) may receive first information indicating a first set of resources for performing CLI measurements during one or more SBFD symbols. The UE 115-i and additional wireless communication devices communicating with the UE 115-i may support SBFD operations. In some cases, the first information may indicate a first set of additional resources for reporting the results of CLI measurements during one or more SBFD symbols.
[0113] At 510, the UE 115-i may receive second information indicating a second set of resources for performing CLI measurements during one or more non-SBFD symbols. In some cases, the second information may indicate a second set of additional resources for reporting the results of CLI measurements during one or more non-SBFD symbols.
[0114] At 515, the UE 115-i may perform CLI measurements using the first set of resources or the second set of resources based on the type of symbol in which the CLI measurements are performed, where the type of symbol is an SBFD symbol or a non-SBFD symbol. For example, if the CLI measurements are performed in an SBFD symbol, the UE 115-i may use the first set of resources, or if the CLI measurements are performed in a non-SBFD symbol, the UE may use the second set of resources. In some examples, the CLI measurements may include RSSI measurements, SINR measurements, RSRP measurements, or combinations thereof.
[0115] At 520, UE 115-i may use a first additional resource set or a second additional resource set to send a report indicating the result of the CLI measurement based on the type of symbol in which the CLI measurement is performed. For example, if the CLI measurement is performed in an SBFD symbol, UE 115-i may use the first set of additional resources, or if the CLI measurement is performed in a non-SBFD symbol, the UE may use the second set of additional resources.
[0116] Figure 6 FIG. 600 is a block diagram illustrating a device 605 that supports CLI reference signal configuration per resource type in accordance with one or more aspects of the present disclosure. Device 605 may be an example of aspects of a wireless communication device as described herein. Device 605 may include a receiver 610, a transmitter 615, and a communication manager 620. Device 605 may also include a processor. Each of these components may communicate with one another (e.g., via one or more buses).
[0117] The receiver 610 may manage the input signals of device 605. For example, the receiver 610 may identify input signals based on interactions with a modem, keyboard, mouse, touch screen, or similar device. These input signals may be associated with user input or processing at other components or devices. In some cases, the receiver 610 may utilize an operating system (such as or another known operating system) to handle the input signals. The receiver 610 may convey aspects of these input signals to other components of device 605 for processing. For example, the receiver 610 may send input signals to the communication manager 620 to support CLI reference signal configuration per resource type. In some cases, the receiver 610 may be a component of the I / O controller 910 as described in reference Figure 9
[0118] The transmitter 615 may manage the output signals of device 605. For example, the transmitter 615 may receive signals from other components of device 605 (such as the communication manager 620) and may send these signals to other components or devices. In some particular examples, the transmitter 615 may send output signals for display in a user interface, for storage in a database or data repository, for further processing at a server or server cluster, or for any other process at any number of devices or systems. In some cases, the transmitter 615 may be a component of the I / O controller 910 as described in reference Figure 9
[0119] The communication manager 620, the receiver 610, the transmitter 615, or various combinations or various components thereof can be examples of components for performing various aspects of per-resource-type CLI reference signal configuration as described herein. For example, the communication manager 620, the receiver 610, the transmitter 615, or various combinations or components thereof can support methods for performing one or more of the functions described herein.
[0120] In some examples, the communication manager 620, the receiver 610, the transmitter 615, or various combinations or components thereof can be implemented in hardware (e.g., in a communication management circuit). The hardware can include a processor, a DSP, a CPU, an ASIC, an FPGA, or other programmable logic device, a microcontroller, discrete gate or transistor logic components, discrete hardware components, or any combination thereof that are configured as or otherwise support components for performing the functions described in this disclosure. In some examples, a processor and memory coupled to the processor can be configured to perform one or more of the functions described herein (e.g., by the processor executing instructions stored in the memory).
[0121] Additionally or alternatively, in some examples, the communication manager 620, the receiver 610, the transmitter 615, or various combinations or components thereof can be implemented in code executed by a processor (e.g., implemented as communication management software or firmware). If implemented in code executed by a processor, the functions of the communication manager 620, the receiver 610, the transmitter 615, or various combinations or components thereof can be performed by a general-purpose processor, a DSP, a CPU, an ASIC, an FPGA, a microcontroller, or any combination of these or other programmable logic devices that are configured as or otherwise support components for performing the functions described in this disclosure.
[0122] In some examples, the communication manager 620 can be configured to use or otherwise cooperate with the receiver 610, the transmitter 615, or both to perform various operations (e.g., receive, obtain, monitor, output, transmit). For example, the communication manager 620 can receive information from the receiver 610, convey information to the transmitter 615, or integrate in combination with the receiver 610, the transmitter 615, or both to obtain information, output information, or perform various other operations as described herein.
[0123] According to an example as disclosed herein, the communication manager 620 may support wireless communication at a wireless communication device. For example, the communication manager 620 may be configured as or otherwise support a component for receiving first information indicating a first resource set for performing CLI measurements during one or more SBFD symbols. The communication manager 620 may be configured as or otherwise support a component for receiving second information indicating a second resource set for performing CLI measurements during one or more non-SBFD symbols. The communication manager 620 may be configured as or otherwise support a component for performing CLI measurements using the first resource set or the second resource set based on the type of symbol in which the CLI measurements are performed, where the type of symbol is an SBFD symbol or a non-subband full-duplex symbol.
[0124] Additionally or alternatively, according to an example as disclosed herein, the communication manager 620 may support wireless communication at a wireless communication device. For example, the communication manager 620 may be configured as or otherwise support a component for transmitting first information indicating a first resource set for performing CLI measurements during one or more SBFD symbols. The communication manager 620 may be configured as or otherwise support a component for transmitting second information indicating a second resource set for performing CLI measurements during one or more non-SBFD symbols.
[0125] By including or configuring the communication manager 620 according to an example as described herein, the device 605 (e.g., a processor that controls or otherwise couples to the receiver 610, the transmitter 615, the communication manager 620, or a combination thereof) may support techniques for supporting multiple resource configurations for SBFD symbols and non-SBFD symbols, which may improve spectral efficiency, reduce resource consumption, and enhance wireless communication.
[0126] Figure 7 Block diagram 700 illustrates a device 705 supporting CLI reference signal configuration per resource type in accordance with one or more aspects of the present disclosure. The device 705 may be an example of aspects of the device 605 or the wireless communication device 115 as described herein. The device 705 may include a receiver 710, a transmitter 715, and a communication manager 720. The device 705 may also include a processor. Each of these components may communicate with one another (e.g., via one or more buses).
[0127] The receiver 710 may manage input signals of the device 705. For example, the receiver 710 may identify input signals based on interactions with a modem, a keyboard, a mouse, a touch screen, or similar devices. These input signals may be associated with user input or processing at other components or devices. In some cases, the receiver 710 may utilize an operating system (such as or another known operating system) to handle the input signals. The receiver 710 may convey aspects of these input signals to other components of the device 705 for processing. For example, the receiver 710 may send the input signals to the communication manager 720 to support per-resource type CLI reference signal configuration. In some cases, the receiver 710 may be a component such as the I / O controller 910 described in reference Figure 9 as described.
[0128] The transmitter 715 may manage the output signals of the device 705. For example, the transmitter 715 may receive signals from other components of the device 705 (such as the communication manager 720), and may send these signals to other components or devices. In some specific examples, the transmitter 715 may send output signals for display in a user interface, for storage in a database or data repository, for further processing at a server or server cluster, or for any other process at any number of devices or systems. In some cases, the transmitter 715 may be a component such as the I / O controller 910 described in reference Figure 9 as described.
[0129] The device 705 or its various components may be examples of components for performing various aspects of the per-resource type CLI reference signal configuration described herein. For example, the communication manager 720 may include an SBFD component 725, a non-SBFD component 730, a CLI measurement component 735, or any combination thereof. The communication manager 720 may be an example of aspects of the communication manager 620 described herein. In some examples, the communication manager 720 or its various components may be configured to perform various operations (e.g., receive, obtain, monitor, output, send) using or otherwise in cooperation with the receiver 710, the transmitter 715, or both. For example, the communication manager 720 may receive information from the receiver 710, convey information to the transmitter 715, or integrate in combination with the receiver 710, the transmitter 715, or both to obtain information, output information, or perform various other operations described herein.
[0130] According to examples as disclosed herein, a communication manager 720 may support wireless communication at a wireless communication device. An SBFD component 725 may be configured as or otherwise support a component for receiving first information indicating a first resource set for performing CLI measurements during one or more SBFD symbols. A non-SBFD component 730 may be configured as or otherwise support a component for receiving second information indicating a second resource set for performing CLI measurements during one or more non-SBFD symbols. A CLI measurement component 735 may be configured as or otherwise support a component for performing CLI measurements using the first resource set or the second resource set based on the type of symbol in which the CLI measurements are performed, where the type of symbol is an SBFD symbol or a non-subband full-duplex symbol.
[0131] Additionally or alternatively, according to examples as disclosed herein, a communication manager 720 may support wireless communication at a wireless communication device. An SBFD component 725 may be configured as or otherwise support a component for transmitting first information indicating a first resource set for performing CLI measurements during one or more SBFD symbols. A non-SBFD component 730 may be configured as or otherwise support a component for transmitting second information indicating a second resource set for performing CLI measurements during one or more non-SBFD symbols.
[0132] Figure 8 Block diagram 800 illustrates a communication manager 820 supporting per-resource type CLI reference signal configuration in accordance with one or more aspects of the present disclosure. The communication manager 820 may be an example of aspects of the communication manager 620, the communication manager 720, or both as described herein. The communication manager 820 or its various components may be examples of components for performing various aspects of the per-resource type CLI reference signal configuration as described herein. For example, the communication manager 820 may include an SBFD component 825, a non-SBFD component 830, a CLI measurement component 835, a reporting information component 840, a periodic component 845, a reporting component 850, or any combination thereof. Each of these components may communicate directly or indirectly with one another (e.g., via one or more buses).
[0133] According to an example disclosed herein, a communication manager 820 may support wireless communication at a wireless communication device. An SBFD component 825 may be configured as or otherwise support a component for receiving first information indicating a first resource set for performing CLI measurements during one or more SBFD symbols. A non-SBFD component 830 may be configured as or otherwise support a component for receiving second information indicating a second resource set for performing CLI measurements during one or more non-SBFD symbols. A CLI measurement component 835 may be configured as or otherwise support a component for performing CLI measurements using the first resource set or the second resource set based on the type of symbol in which the CLI measurements are performed, where the type of symbol is an SBFD symbol or a non-subband full-duplex symbol.
[0134] In some examples, a reporting information component 840 may be configured as or otherwise support a component for receiving first information indicating a first additional resource set for reporting results of CLI measurements during one or more SBFD symbols. In some examples, a reporting information component 840 may be configured as or otherwise support a component for receiving second information indicating a second additional resource set for reporting results of CLI measurements during one or more non-SBFD symbols.
[0135] In some examples, the wireless communication device is a UE that supports half-duplex communication, and wherein the first information and the second information are received from a network entity that supports SBFD operation.
[0136] In some examples, a reporting component 850 may be configured as or otherwise support a component for sending a report indicating results of CLI measurements using the first additional resource set or the second additional resource set based on the type of symbol in which the CLI measurements are performed.
[0137] In some examples, to support performing CLI measurements, a CLI measurement component 835 may be configured as or otherwise support a component for: performing at least one of an RSSI measurement or a SINR measurement for one or more downlink subbands in an SBFD symbol to measure CLI caused by inter-subband leakage due to uplink transmissions from an adjacent wireless communication device during the SBFD symbol. In some examples, to support performing CLI measurements, a CLI measurement component 835 may be configured as or otherwise support a component for: performing at least one of an RSSI measurement or an RSRP measurement for one or more uplink subbands in an SBFD symbol to measure in-band CLI caused by uplink transmissions, where the wireless communication device is a user equipment (UE).
[0138] In some examples, to support performing CLI measurements, the CLI measurement component 835 may be configured as or otherwise support a component for: performing at least one of an RSSI measurement or a SINR measurement for one or more uplink subbands in an SBFD symbol to measure CLI caused by inter-subband leakage due to downlink transmissions from adjacent wireless communication devices during the SBFD symbol. In some examples, to support performing CLI measurements, the CLI measurement component 835 may be configured as or otherwise support a component for: performing at least one of an RSSI measurement or an RSRP measurement for one or more downlink subbands in an SBFD symbol to measure in-band CLI caused by downlink transmissions, where the wireless communication device is a network entity.
[0139] In some examples, to support performing CLI measurements, the CLI measurement component 835 may be configured as or otherwise support a component for performing CLI measurements during non-SBFD symbols based on misalignment of the TDD format applied by the wireless communication device and one or more additional wireless communication devices during non-SBFD symbols.
[0140] In some examples, the amount of a second resource set allocated for performing CLI measurements during non-SBFD symbols is based on whether the TDD format applied by the wireless communication device and one or more additional wireless communication devices during non-SBFD symbols is aligned or misaligned.
[0141] In some examples, a first amount of a first resource set allocated for performing CLI measurements during SBFD symbols is greater than a second amount of a second resource set allocated for performing CLI measurements during non-SBFD symbols.
[0142] In some examples, the periodicity component 845 may be configured as or otherwise support a component for distinguishing first information from second information based on the periodicity of a first resource set being associated with the corresponding periodicity of one or more SBFD symbols.
[0143] In some examples, the first resource set and the second resource set are indicated for each cell in a set of multiple cells. In some examples, the wireless communication device is a UE, and the CLI measurement is used to determine inter-UE CLI.
[0144] Additionally or alternatively, according to examples as disclosed herein, the communication manager 820 may support wireless communication at a wireless communication device. In some examples, the SBFD component 825 may be configured as or otherwise support a component for sending first information indicating a first resource set for performing CLI measurements during one or more SBFD symbols. In some examples, the non-SBFD component 830 may be configured as or otherwise support a component for sending second information indicating a second resource set for performing CLI measurements during one or more non-SBFD symbols.
[0145] In some examples, the reporting information component 840 may be configured as or otherwise support a component for sending first information indicating a first additional resource set for reporting results of CLI measurements during one or more SBFD symbols. In some examples, the reporting information component 840 may be configured as or otherwise support a component for sending second information indicating a second additional resource set for reporting results of CLI measurements during one or more non-SBFD symbols.
[0146] In some examples, the reporting information component 840 may be configured as or otherwise support a component for a wireless communication device that is a network entity supporting SBFD operations, and wherein the first information and the second information are sent to a UE supporting half-duplex operation.
[0147] In some examples, the reporting component 850 may be configured as or otherwise support a component for receiving a report indicating results of CLI measurements using the first additional resource set or the second additional resource set based on the type of symbol during which the CLI measurements are performed.
[0148] In some examples, the amount of the second resource set allocated for performing CLI measurements during non-SBFD symbols is based on whether the TDD format applied by the wireless communication device and one or more additional wireless communication devices during non-SBFD symbols is aligned or not.
[0149] In some examples, a first amount of the first resource set allocated for performing CLI measurements during SBFD symbols is greater than a second amount of the second resource set allocated for performing CLI measurements during non-SBFD symbols.
[0150] In some examples, the first resource set and the second resource set are indicated for each cell in a set of multiple cells. In some examples, the wireless communication device is a network entity, and the CLI measurements are used to determine the CLI between network entities.
[0151] Figure 9FIG. illustrates a system 900 including a device 905 that supports per-resource type CLI reference signal configuration in accordance with one or more aspects of the present disclosure. The device 905 may be an example of or include components of the device 605, the device 705, or a wireless communication device as described herein. The device 905 may include components for two-way voice and data communication, including components for sending and receiving communications, such as a communication manager 920, an I / O controller 910, a transceiver 915, an antenna 925, a memory 930, code 935 coupled to the memory 930, and a processor 940. These components may be electronically communicated or otherwise coupled (e.g., operatively, communicatively, functionally, electronically, electrically) via one or more buses (e.g., bus 945).
[0152] The I / O controller 910 may manage input and output signals of the device 905. The I / O controller 910 may also manage peripheral devices not integrated into the device 905. In some cases, the I / O controller 910 may represent a physical connection or port to an external peripheral device. In some cases, the I / O controller 910 may utilize an operating system, such as or another known operating system. Additionally or alternatively, the I / O controller 910 may represent, or interact with, a modem, a keyboard, a mouse, a touch screen, or similar devices. In some cases, the I / O controller 910 may be implemented as part of a processor. In some examples, a user may interact with the device 905 via the I / O controller 910 or via hardware components controlled by the I / O controller 910.
[0153] In some cases, the device 905 may include a single antenna 925. However, in some other cases, the device 905 may have more than one antenna 925, which may be capable of concurrently sending or receiving multiple wireless transmissions. The transceiver 915 may communicate bidirectionally via one or more antennas 925, a wired or wireless link, as described herein. For example, the transceiver 915 may represent a wireless transceiver and may communicate bidirectionally with another wireless transceiver. The transceiver 915 may also include a modem that is configured to: modulate a packet; provide the modulated packet to one or more antennas 925 for transmission; and demodulate a packet received from one or more antennas 925. The transceiver 915 or the transceiver 915 and one or more antennas 925 may be an example of the transmitter 715, the transmitter 815, or any combination thereof, or components thereof, as described herein.
[0154] Memory 930 may include RAM and ROM. Memory 930 may store computer-readable, computer-executable code 935 including instructions that, when executed by processor 940, cause device 905 to perform the various functions described herein. Code 935 may be stored in a non-transitory computer-readable medium (such as system memory or another type of memory). In some cases, code 935 may not be directly executable by processor 940 but may (e.g., when compiled and executed) cause a computer to perform the functions described herein. In some cases, memory 930 may contain BIOS and so on, which may control basic hardware or software operations, such as interactions with peripheral components or devices.
[0155] Processor 940 may include intelligent hardware devices (e.g., general-purpose processors, DSPs, CPUs, microcontrollers, ASICs, FPGAs, programmable logic devices, discrete gate or transistor logic components, discrete hardware components, or any combination thereof). In some cases, processor 940 may be configured to operate a memory array using a memory controller. In some other cases, the memory controller may be integrated into processor 940. Processor 940 may be configured to execute computer-readable instructions stored in a memory (e.g., memory 930) to cause device 905 to perform various functions (e.g., functions or tasks supporting mobile IAB connectivity). For example, device 905 or components of device 905 may include processor 940 and memory 930 coupled or coupled to the processor, and processor 940 and memory 930 are configured to perform the various functions described herein.
[0156] According to an example as disclosed herein, communication manager 920 may support wireless communication by a mobile radio node. For example, communication manager 920 may be configured as or otherwise support a component for sending a control message indicating one or more network connectivity modes supported by the mobile radio node to a parent radio node, the one or more network connectivity modes being for providing network connectivity to one or more UEs via the mobile radio node when wireless backhaul connectivity is lost between the mobile radio node and the parent radio node. Communication manager 920 may be configured as or otherwise support a component for receiving a reply message indicating authorization to use at least a first network connectivity mode of the one or more network connectivity modes from the parent radio node. Communication manager 920 may be configured as or otherwise support a component for communicating one or more messages with a first UE among one or more UEs according to the first network connectivity mode.
[0157] By including or configuring a communication manager 920 according to examples as described herein, device 905 may support techniques for mobile IAB connectivity that may increase signaling throughput, increase the coverage of mobile IAB nodes, and improve communication between mobile IAB nodes and one or more UEs.
[0158] In some examples, communication manager 920 may be configured to perform various operations (e.g., receive, monitor, transmit) using or otherwise in cooperation with transceiver 915, one or more antennas 925, or any combination thereof. Although communication manager 920 is illustrated as a separate component, in some examples, one or more functions described with reference to communication manager 920 may be supported or performed by processor 940, memory 930, code 935, or any combination thereof. For example, code 935 may include instructions that can be executed by processor 940 to cause device 905 to perform various aspects of mobile IAB connectivity as described herein, or processor 940 and memory 930 may otherwise be configured to perform or support such operations.
[0159] Figure 10 A flowchart illustrating a method 1000 for supporting CLI reference signal configuration per resource type in accordance with one or more aspects of the present disclosure is shown. Operations of method 1000 may be implemented by a wireless communication device or components thereof as described herein. For example, operations of method 1000 may be performed by a wireless communication device as described with reference to Figures 1 to 9 as described. In some examples, the wireless communication device may execute an instruction set to control functional elements of the wireless communication device to perform the described functions. Additionally or alternatively, the wireless communication device may use dedicated hardware to perform aspects of the described functions.
[0160] At 1005, the method may include: receiving first information indicating a first resource set for performing CLI measurements during one or more SBFD symbols. The operation of 1005 may be performed in accordance with examples as disclosed herein. In some examples, aspects of the operation of 1005 may be performed by an SBFD component 825 as described with reference to Figure 8 as described.
[0161] At 1010, the method may include: receiving second information indicating a second resource set for performing CLI measurements during one or more non-SBFD symbols. The operation of 1010 may be performed in accordance with examples as disclosed herein. In some examples, aspects of the operation of 1010 may be performed by a non-SBFD component 830 as described with reference to Figure 8 as described.
[0162] At 1015, the method may include: performing the CLI measurement using the first resource set or the second resource set based on the type of symbol in which the CLI measurement is performed, where the type of symbol is an SBFD symbol or a non-subband full-duplex symbol. The operation at 1015 may be performed according to the examples disclosed herein. In some examples, aspects of the operation at 1015 may be performed by the CLI measurement component 835 as described with reference to Figure 8 as described.
[0163] Figure 11 Illustrates a flowchart of a method 1100 showing support for per-resource type CLI reference signal configuration in accordance with one or more aspects of the present disclosure. The operations of method 1100 may be implemented by a wireless communication device or its components as described herein. For example, the operations of method 1100 may be performed by a wireless communication device as described with reference to Figures 1 to 9 as described. In some examples, the wireless communication device may execute an instruction set to control functional elements of the wireless communication device to perform the described functions. Additionally or alternatively, the wireless communication device may use dedicated hardware to perform aspects of the described functions.
[0164] At 1105, the method may include: receiving first information indicating a first resource set for performing the CLI measurement during one or more SBFD symbols and indicating a first additional resource set for reporting the result of the CLI measurement during the one or more SBFD symbols. The operation at 1105 may be performed according to the examples disclosed herein. In some examples, aspects of the operation at 1105 may be performed by the SBFD component 825 as described with reference to Figure 8 as described.
[0165] At 1110, the method may include: receiving second information indicating a second resource set for performing the CLI measurement during one or more non-SBFD symbols and indicating the first additional resource set for reporting the result of the CLI measurement during the one or more SBFD symbols. The operation at 1110 may be performed according to the examples disclosed herein. In some examples, aspects of the operation at 1110 may be performed by the non-SBFD component 830 as described with reference to Figure 8 as described.
[0166] At 1115, the method may include: performing the CLI measurement using the first resource set or the second resource set based on the type of symbol in which the CLI measurement is performed, where the type of symbol is an SBFD symbol or a non-subband full-duplex symbol. The operation at 1115 may be performed according to the examples disclosed herein. In some examples, aspects of the operation at 1115 may be performed by the CLI measurement component 835 as described with reference to Figure 8 as described.
[0167] Figure 12 FIG. 1200 is a flowchart illustrating a method for supporting per-resource type CLI reference signal configuration in accordance with one or more aspects of the present disclosure. Operations of method 1200 may be implemented by a wireless communication device or components thereof as described herein. For example, operations of method 1200 may be performed by a wireless communication device as described with reference to Figures 1 to 9 Those described. In some examples, the wireless communication device may execute an instruction set to control functional elements of the wireless communication device to perform the described functions. Additionally or alternatively, the wireless communication device may use dedicated hardware to perform aspects of the described functions.
[0168] At 1205, the method may include: transmitting first information indicating a first resource set for performing CLI measurements during one or more SBFD symbols. The operation of 1205 may be performed in accordance with examples disclosed herein. In some examples, aspects of the operation of 1205 may be performed by an SBFD component 825 as described with reference to Figure 8 Those described.
[0169] At 1210, the method may include: transmitting second information indicating a second resource set for performing CLI measurements during one or more non-SBFD symbols. The operation of 1210 may be performed in accordance with examples disclosed herein. In some examples, aspects of the operation of 1210 may be performed by a non-SBFD component 830 as described with reference to Figure 8 Those described.
[0170] Figure 13 FIG. 1300 is a flowchart illustrating a method for supporting per-resource type CLI reference signal configuration in accordance with one or more aspects of the present disclosure. Operations of method 1300 may be implemented by a wireless communication device or components thereof as described herein. For example, operations of method 1300 may be performed by a wireless communication device as described with reference to Figures 1 to 9 Those described. In some examples, the wireless communication device may execute an instruction set to control functional elements of the wireless communication device to perform the described functions. Additionally or alternatively, the wireless communication device may use dedicated hardware to perform aspects of the described functions.
[0171] At 1305, the method may include: transmitting first information indicating a first resource set for performing CLI measurements during one or more SBFD symbols. The operation of 1305 may be performed in accordance with examples disclosed herein. In some examples, aspects of the operation of 1305 may be performed by an SBFD component 825 as described with reference to Figure 8 Those described.
[0172] At 1310, the method may include: sending second information indicating a second resource set for performing a CLI measurement during one or more non-SBFD symbols. The operation at 1310 may be performed according to the examples disclosed herein. In some examples, aspects of the operation at 1310 may be performed by a non-SBFD component 830 as described with reference to Figure 8 as described.
[0173] At 1315, the method may include: receiving a report indicating a result of the CLI measurement using a first additional resource set or a second additional resource set based on a type of symbol in which the CLI measurement is performed. The operation at 1315 may be performed according to the examples disclosed herein. In some examples, aspects of the operation at 1315 may be performed by a reporting component 850 as described with reference to Figure 8 as described.
[0174] An overview of aspects of the present disclosure is provided below:
[0175] Aspect 1: A method for wireless communication at a wireless communication device, the method comprising: receiving first information indicating a first resource set for performing a CLI measurement during one or more SBFD symbols; receiving second information indicating a second resource set for performing a CLI measurement during one or more non-SBFD symbols; and performing the CLI measurement using the first resource set or the second resource set at least in part based on a type of symbol in which the CLI measurement is performed, wherein the type of symbol is an SBFD symbol or a non-subband full-duplex symbol.
[0176] Aspect 2: The method according to aspect 1, the method further comprising: receiving the first information indicating a first additional resource set for reporting a result of the CLI measurement during the one or more SBFD symbols; and receiving the second information indicating a second additional resource set for reporting a result of the CLI measurement during the one or more non-SBFD symbols.
[0177] Aspect 3: The method according to aspect 2, wherein the wireless communication device is a UE supporting half-duplex communication, and wherein the first information and the second information are received from a network entity supporting SBFD operation.
[0178] Aspect 4: The method according to any one of aspects 2 to 3, the method further comprising: sending a report indicating a result of the CLI measurement using the first additional resource set or the second additional resource set at least in part based on the type of symbol in which the CLI measurement is performed.
[0179] Aspect 5: The method according to any one of Aspects 1 to 4, wherein performing the CLI measurement includes: performing at least one of an RSSI measurement or a SINR measurement for one or more downlink subbands in the SBFD symbol to measure the CLI caused by inter-subband leakage resulting from an uplink transmission from an adjacent wireless communication device during the SBFD symbol; and performing at least one of an RSSI measurement or an RSRP measurement for one or more uplink subbands in the SBFD symbol to measure the in-subband CLI caused by the uplink transmission, wherein the wireless communication device is a UE.
[0180] Aspect 6: The method according to any one of Aspects 1 to 5, wherein performing the CLI measurement includes: performing at least one of an RSSI measurement or a SINR measurement for one or more uplink subbands in the SBFD symbol to measure the CLI caused by inter-subband leakage resulting from a downlink transmission from an adjacent wireless communication device during the SBFD symbol; and performing at least one of an RSSI measurement or an RSRP measurement for one or more downlink subbands in the SBFD symbol to measure the in-subband CLI caused by the downlink transmission, wherein the wireless communication device is a network entity.
[0181] Aspect 7: The method according to any one of Aspects 1 to 6, wherein performing the CLI measurement includes: performing the CLI measurement during the non-SBFD symbol at least partially based on a misalignment of the TDD format applied by the wireless communication device and one or more additional wireless communication devices during the non-SBFD symbol.
[0182] Aspect 8: The method according to any one of Aspects 1 to 7, wherein the amount of the second resource set allocated for performing the CLI measurement during the non-SBFD symbol is based on whether the TDD format applied by the wireless communication device and one or more additional wireless communication devices during the non-SBFD symbol is aligned or misaligned.
[0183] Aspect 9: The method according to any one of Aspects 1 to 8, wherein a first amount of the first resource set allocated for performing the CLI measurement during the SBFD symbol is greater than a second amount of the second resource set allocated for performing the CLI measurement during the non-SBFD symbol.
[0184] Aspect 10: The method according to any one of Aspects 1 to 9, the method further includes: distinguishing the first information from the second information at least partially based on a periodicity of the first resource set being associated with a corresponding periodicity of the one or more SBFD symbols.
[0185] Aspect 11: The method according to any one of Aspects 1 to 10, wherein the first resource set and the second resource set are indicated for each of a plurality of cells.
[0186] Aspect 12: The method according to any one of Aspects 1 to 11, wherein the wireless communication device is a UE, and the CLI measurement is used to determine the inter-UE CLI.
[0187] Aspect 13: A method for wireless communication at a wireless communication device, the method comprising: transmitting first information indicating a first resource set for performing a CLI measurement during one or more SBFD symbols; and transmitting second information indicating a second resource set for performing a CLI measurement during one or more non-SBFD symbols.
[0188] Aspect 14: The method according to Aspect 13, the method further comprising: transmitting the first information indicating a first additional resource set for reporting the result of the CLI measurement during the one or more SBFD symbols; and transmitting the second information indicating a second additional resource set for reporting the result of the CLI measurement during the one or more non-SBFD symbols.
[0189] Aspect 15: The method according to Aspect 14, the method further comprising: the wireless communication device is a network entity supporting SBFD operation, and wherein the first information and the second information are transmitted to a UE supporting half-duplex operation.
[0190] Aspect 16: The method according to any one of Aspects 14 to 15, the method further comprising: receiving a report indicating the result of the CLI measurement using the first additional resource set or the second additional resource set at least partially based on the type of symbol in which the CLI measurement is performed.
[0191] Aspect 17: The method according to any one of Aspects 13 to 16, wherein the amount of the second resource set allocated for performing the CLI measurement during non-SBFD symbols is based on whether the TDD format applied by the wireless communication device and one or more additional wireless communication devices during the non-SBFD symbols is aligned or not.
[0192] Aspect 18: The method according to any one of Aspects 13 to 17, wherein a first amount of the first resource set allocated for performing the CLI measurement during SBFD symbols is greater than a second amount of the second resource set allocated for performing the CLI measurement during non-SBFD symbols.
[0193] Aspect 19: The method according to any one of Aspects 13 to 18, wherein the first resource set and the second resource set are indicated for each of a plurality of cells.
[0194] Aspect 20: The method according to any one of Aspects 13 to 19, wherein the wireless communication device is a network entity, and the CLI measurement is used to determine the CLI between network entities.
[0195] Aspect 21: An apparatus for wireless communication at a wireless communication device, the apparatus comprising: a processor; a memory coupled to the processor; and instructions stored in the memory and executable by the processor to cause the apparatus to perform the method according to any one of Aspects 1 to 12.
[0196] Aspect 22: An apparatus for wireless communication at a wireless communication device, the apparatus comprising: at least one component for performing the method according to any one of Aspects 1 to 12.
[0197] Aspect 23: A non-transitory computer-readable medium storing code for wireless communication at a wireless communication device, the code comprising instructions executable by a processor to perform the method according to any one of Aspects 1 to 12.
[0198] Aspect 24: An apparatus for wireless communication at a wireless communication device, the apparatus comprising: a processor; a memory coupled to the processor; and instructions stored in the memory and executable by the processor to cause the apparatus to perform the method according to any one of Aspects 13 to 20.
[0199] Aspect 25: An apparatus for wireless communication at a wireless communication device, the apparatus comprising: at least one component for performing the method according to any one of Aspects 13 to 20.
[0200] Aspect 26: A non-transitory computer-readable medium storing code for wireless communication at a wireless communication device, the code comprising instructions executable by a processor to perform the method according to any one of Aspects 13 to 20.
[0201] It should be noted that the methods described herein describe possible specific implementations, and the operations and steps may be rearranged or otherwise modified and other specific implementations are also possible. In addition, aspects from two or more methods may be combined.
[0202] Although aspects of LTE, LTE-A, LTE-A Pro, or NR systems may be described for example purposes and the terms LTE, LTE-A, LTE-A Pro, or NR may be used in most of the description, the techniques described herein may also be applicable to networks other than LTE, LTE-A, LTE-A Pro, or NR networks. For example, the described techniques may be applicable to various other wireless communication systems such as Ultra Mobile Broadband (UMB), Institute of Electrical and Electronics Engineers (IEEE) 802.11 (Wi-Fi), IEEE 802.16 (WiMAX), IEEE 802.20, Flash-OFDM, and other systems and radio technologies not explicitly mentioned herein.
[0203] The information and signals described herein may be represented using any of a variety of different technologies and methods. For example, data, instructions, commands, information, signals, bits, symbols, and chips referred to throughout the specification may be represented by voltage, current, electromagnetic waves, magnetic fields or magnetic particles, optical fields or optical particles, or any combination thereof.
[0204] The various illustrative blocks and components described in connection with the disclosure herein may be implemented or performed using a general-purpose processor, DSP, ASIC, CPU, FPGA, or other programmable logic device, discrete gate or transistor logic, discrete hardware components, or any combination thereof designed to perform the functions described herein. The general-purpose processor may be a microprocessor, but in the alternative, the processor may be any processor, controller, microcontroller, or state machine. The processor may also be implemented as a combination of computing devices (e.g., a combination of a DSP and a microprocessor, multiple microprocessors, one or more microprocessors in conjunction with a DSP core, or any other such configuration).
[0205] The functions described herein may be implemented using hardware, software executed by a processor, firmware, or any combination thereof. If implemented using software executed by a processor, the functions may 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 the present disclosure and the appended claims. For example, due to the nature of software, the functions described herein may be implemented using software executed by a processor, hardware, firmware, hardwiring, or any combination of these items. The features implementing the functions may also be physically located at different positions, including being distributed such that portions of the functions are implemented at different physical locations.
[0206] A computer-readable medium includes both a non-transitory computer storage medium and a communication medium, where the communication medium includes any medium that facilitates transfer of a computer program from one location to another. The non-transitory storage medium can be any available medium that can be accessed by a general purpose or special purpose computer. By way of example, and not limitation, non-transitory computer-readable media can include RAM, ROM, electrically erasable programmable ROM (EEPROM), flash memory, compact disc read-only memory (CD-ROM) or other optical disc storage, magnetic disk storage or other magnetic storage devices, or any other non-transitory medium that can be used to carry or store desired program code portions in the form of instructions or data structures and that can be accessed by a general purpose or special purpose computer or a general purpose or special purpose processor. Also, any connection is properly termed a computer-readable medium. For example, if software is transmitted using coaxial cable, fiber optic cable, twisted pair, digital subscriber line (DSL), or wireless technologies such as infrared, radio, and microwave, then the coaxial cable, fiber optic cable, twisted pair, DSL, or wireless technologies such as infrared, radio, and microwave are included in the definition of computer-readable medium. As used herein, disk and disc include CD, laser disc, optical disc, digital versatile disc (DVD), floppy disk, and Blu-ray disc. A disk can magnetically reproduce data, and a disc can optically reproduce data using lasers. Combinations of the above are also included within the scope of computer-readable medium.
[0207] As used herein (including in the claims), the "or" used in a list of items (e.g., a list of items accompanied by language such as "at least one of" or "one or more of") indicates an inclusive listing such that, for example, the listing of at least one of 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). Additionally, 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" can be based on both condition A and condition B without departing from the scope of the present 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".
[0208] The term "determine" encompasses a variety of actions, and thus, "determine" can include operations such as calculating, computing, processing, deriving, investigating, looking up (such as looking up in a table, database, or other data structure), ascertaining, and the like. Additionally, "determine" can include receiving (e.g., receiving information), accessing (e.g., accessing data stored in a memory), etc. Further, "determine" can include parsing, obtaining, selecting, choosing, establishing, and other such similar actions.
[0209] In the drawings, like components or features may have the same reference numerals. Additionally, various components of the same type may be distinguished by adding a dash and a second numeral used to differentiate among like components after the reference numeral. If only the first reference numeral is used in the specification, the description may apply to any one of the like components having the same first reference numeral, regardless of the second or further reference numerals.
[0210] The description set forth herein in connection with the drawings describes example configurations and does not represent all examples that may be implemented or that are within the scope of the claims. The term "example" as used herein means "serving as an example, instance, or illustration" and not "preferred" or "advantageous over other examples." The detailed description includes specific details for providing an understanding of the described techniques. However, the techniques may be practiced without these specific details. In some instances, well-known structures and devices are shown in block diagram form to avoid obscuring the concepts of the described examples.
[0211] The present description is provided to enable a person having ordinary skill in the art to make or use the present disclosure. Various modifications to the present disclosure will be readily apparent to those having ordinary skill in the art, and the general principles defined herein may be applied to other variations without departing from the scope of the present disclosure. Thus, the present disclosure is not limited to the examples and designs described herein and is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims
1. An apparatus for wireless communication at a wireless communication device, the apparatus comprising: a processor; a memory coupled to the processor; and instructions stored in the memory and executable by the processor to cause the apparatus to: receive first information indicating a first resource set for performing cross-link interference measurements during one or more sub-band full-duplex symbols; receive second information indicating a second resource set for performing cross-link interference measurements during one or more non-sub-band full-duplex symbols; and perform the cross-link interference measurements using the first resource set or the second resource set at least in part based on the type of symbol in which the cross-link interference measurements are performed, where the type of symbol is a sub-band full-duplex symbol or a non-sub-band full-duplex symbol.
2. The apparatus according to claim 1, wherein the instructions are further executable by the processor to cause the apparatus to: receive the first information indicating a first additional resource set for reporting the results of the cross-link interference measurements during the one or more sub-band full-duplex symbols; and receive the second information indicating a second additional resource set for reporting the results of the cross-link interference measurements during the one or more non-sub-band full-duplex symbols.
3. The apparatus according to claim 2, wherein the wireless communication device is a user equipment (UE) supporting half-duplex communication, and wherein the first information and the second information are received from a network entity supporting sub-band full-duplex operation.
4. The apparatus according to claim 2, wherein the instructions are further executable by the processor to cause the apparatus to: send a report indicating the results of the cross-link interference measurements using the first additional resource set or the second additional resource set at least in part based on the type of the symbol in which the cross-link interference measurements are performed.
5. The apparatus according to claim 1, wherein the instructions for performing the cross-link interference measurements are executable by the processor to cause the apparatus to: perform at least one of a received signal strength indicator measurement or a signal-to-interference-plus-noise ratio measurement for one or more downlink sub-bands in a sub-band full-duplex symbol to measure cross-link interference caused by inter-sub-band leakage due to an uplink transmission from an adjacent wireless communication device during the sub-band full-duplex symbol; and perform at least one of a received signal strength indicator measurement or a reference signal received power measurement for one or more uplink sub-bands in the sub-band full-duplex symbol to measure in-band cross-link interference caused by the uplink transmission, where the wireless communication device is a user equipment (UE).
6. The apparatus according to claim 1, wherein the instructions for performing the cross-link interference measurements are executable by the processor to cause the apparatus to: Perform at least one of a received signal strength indicator measurement or a signal-to-interference-plus-noise ratio measurement on one or more uplink subbands in a subband full-duplex symbol to measure cross-link interference caused by inter-subband leakage due to a downlink transmission from an adjacent wireless communication device during the subband full-duplex symbol; and Perform at least one of a received signal strength indicator measurement or a reference signal received power measurement on one or more downlink subbands in the subband full-duplex symbol to measure in-band cross-link interference caused by the downlink transmission, where the wireless communication device is a network entity.
7. The apparatus according to claim 1, wherein the instructions for performing the cross-link interference measurement are executable by the processor to cause the apparatus to: Perform the cross-link interference measurement during the non-subband full-duplex symbol at least in part based on misalignment of a time-division duplex format applied by the wireless communication device and one or more additional wireless communication devices during the non-subband full-duplex symbol.
8. The apparatus according to claim 1, wherein the amount of the second resource set allocated for performing the cross-link interference measurement during the non-subband full-duplex symbol is based on whether a time-division duplex format applied by the wireless communication device and one or more additional wireless communication devices during the non-subband full-duplex symbol is aligned or misaligned.
9. The apparatus according to claim 1, wherein a first amount of the first resource set allocated for performing the cross-link interference measurement during the subband full-duplex symbol is greater than a second amount of the second resource set allocated for performing the cross-link interference measurement during the non-subband full-duplex symbol.
10. The apparatus according to claim 1, wherein the instructions are further executable by the processor to cause the apparatus to: Distinguish the first information from the second information at least in part based on a periodicity of the first resource set being associated with a corresponding periodicity of the one or more subband full-duplex symbols.
11. The apparatus according to claim 1, wherein the first resource set and the second resource set are indicated for each cell in a plurality of cells.
12. The apparatus according to claim 1, wherein the wireless communication device is a user equipment (UE), and the cross-link interference measurement is used to determine inter-UE cross-link interference.
13. An apparatus for wireless communication at a wireless communication device, the apparatus comprising: A processor; A memory coupled to the processor; And Instructions stored in the memory and executable by the processor to cause the apparatus to: Transmit first information indicating a first resource set for performing a cross-link interference measurement during one or more subband full-duplex symbols; And Transmit second information indicating a second resource set for performing a cross-link interference measurement during one or more non-subband full-duplex symbols.
14. The apparatus according to claim 13, wherein the instructions are further executable by the processor to cause the apparatus to: Transmit the first information indicating a first additional resource set for reporting the results of the cross-link interference measurement during the one or more sub-band full-duplex symbols; and Transmit the second information indicating a second additional resource set for reporting the results of the cross-link interference measurement during the one or more non-sub-band full-duplex symbols.
15. The apparatus according to claim 14, wherein the wireless communication device is a network entity supporting sub-band full-duplex operation, and wherein the first information and the second information are transmitted to a user equipment (UE) supporting half-duplex operation.
16. The apparatus according to claim 14, wherein the instructions can be further executed by the processor to cause the apparatus to: Receive a report indicating the results of the cross-link interference measurement using the first additional resource set or the second additional resource set at least partially based on the type of symbol in which the cross-link interference measurement is performed.
17. The apparatus according to claim 13, wherein the amount of the second resource set allocated for performing the cross-link interference measurement during non-sub-band full-duplex symbols is based on whether the time-division duplex format applied by the wireless communication device and one or more additional wireless communication devices during the non-sub-band full-duplex symbols is aligned or not.
18. The apparatus according to claim 13, wherein a first amount of the first resource set allocated for performing the cross-link interference measurement during sub-band full-duplex symbols is greater than a second amount of the second resource set allocated for performing the cross-link interference measurement during non-sub-band full-duplex symbols.
19. The apparatus according to claim 13, wherein the first resource set and the second resource set are indicated for each of a plurality of cells.
20. The apparatus according to claim 13, wherein the wireless communication device is a network entity, and the cross-link interference measurement is used to determine cross-link interference between network entities.
21. A method for wireless communication at a wireless communication device, the method comprising:[[]] Receiving first information indicating a first resource set for performing a cross-link interference measurement during one or more sub-band full-duplex symbols; Receiving second information indicating a second resource set for performing a cross-link interference measurement during one or more non-sub-band full-duplex symbols; And Performing the cross-link interference measurement using the first resource set or the second resource set at least partially based on the type of symbol in which the cross-link interference measurement is performed, wherein the type of symbol is a sub-band full-duplex symbol or a non-sub-band full-duplex symbol.
22. The method according to claim 21, the method further comprising:[[]] Receiving the first information indicating a first additional resource set for reporting the results of the cross-link interference measurement during the one or more sub-band full-duplex symbols; And Receiving the second information indicating a second additional resource set for reporting the results of the cross-link interference measurement during the one or more non-sub-band full-duplex symbols.
23. The method according to claim 22, wherein the wireless communication device is a user equipment (UE) supporting half-duplex communication, and wherein the first information and the second information are received from a network entity supporting sub-band full-duplex operation.
24. The method according to claim 22, the method further comprising: Using at least in part the first additional resource set or the second additional resource set to send a report indicating the result of the cross-link interference measurement based on the type of the symbol in which the cross-link interference measurement is performed.
25. The method according to claim 21, wherein performing the cross-link interference measurement comprises: Performing at least one of a received signal strength indicator measurement or a signal-to-interference-plus-noise ratio measurement for one or more downlink sub-bands in a sub-band full-duplex symbol to measure cross-link interference caused by inter-subband leakage caused by an uplink transmission from an adjacent wireless communication device during the sub-band full-duplex symbol; And Performing at least one of a received signal strength indicator measurement or a reference signal received power measurement for one or more uplink sub-bands in the sub-band full-duplex symbol to measure in-band cross-link interference caused by the uplink transmission, wherein the wireless communication device is a user equipment (UE).
26. A method for wireless communication at a wireless communication device, the method comprising: Sending first information indicating a first resource set for performing a cross-link interference measurement during one or more sub-band full-duplex symbols; And Sending second information indicating a second resource set for performing a cross-link interference measurement during one or more non-sub-band full-duplex symbols.
27. The method according to claim 26, the method further comprising: Sending the first information indicating a first additional resource set for reporting the result of the cross-link interference measurement during the one or more sub-band full-duplex symbols; And Sending the second information indicating a second additional resource set for reporting the result of the cross-link interference measurement during the one or more non-sub-band full-duplex symbols.
28. The method according to claim 27, the method further comprising: The wireless communication device is a network entity supporting sub-band full-duplex operation, and wherein the first information and the second information are sent to a user equipment (UE) supporting half-duplex operation.
29. The method according to claim 27, the method further comprising: Receiving a report indicating the result of the cross-link interference measurement using at least in part the first additional resource set or the second additional resource set based on the type of the symbol in which the cross-link interference measurement is performed.
30. The method according to claim 26, wherein the amount of the second resource set allocated for performing the cross-link interference measurement during non-sub-band full-duplex symbols is based on whether the time-division duplex format applied by the wireless communication device and one or more additional wireless communication devices during the non-sub-band full-duplex symbols is aligned or not.