Techniques for performing noise covariance estimation on a per symbol basis in the presence of inconsistent interference levels

Abstract

Methods, systems, and devices for wireless communications are described. In some cases, a user equipment (UE) may receive, from a serving network entity, control information that indicates whether interference from one or more neighbor network entities is consistent or inconsistent based on a capability of the UE to generate a noise matrix on a per-symbol basis. Consistent interference may occupy a same bandwidth during all symbols of a slot and inconsistent interference may occupy different bandwidths in different symbols of the slot. As such, the UE may determine whether to perform per-symbol noise estimation or per-slot noise estimation based on the control information. For example, the UE may perform per-slot noise estimation based on the interference from the one or more neighbor network entities being consistent and may perform per-symbol noise estimation based on the interference from the one or more neighbor network entities being inconsistent.

Description

TECHNIQUES FOR PERFORMING NOISE COVARIANCE ESTIMATION ON A PER SYMBOL BASIS IN THE PRESENCE OF INCONSISTENT INTERFERENCE LEVELSCROSS REFERENCE

[0001] The present Application for Patent claims the benefit of Israel Patent Application No. 310083 by REGEV et al., entitled “TECHNIQUES FOR PERFORMING NOISE COVARIANCE ESTIMATION ON A PER SYMBOL BASIS IN THE PRESENCE OF INCONSISTENT INTERFERENCE LEVELS / ’ filed January 11 , 2024, assigned to the assignee hereof and incorporated by reference herein in its entirety.INTRODUCTION

[0002] The following relates to wireless communications, including techniques for performing noise covariance estimation on a per symbol basis in the presence of inconsistent interference levels.BACKGROUND

[0003] Wireless communications systems are widely deployed to provide various types of communication content such as voice, video, packet data, messaging, broadcast, and so on. These systems may be capable of supporting communication with multiple users by sharing the available system resources (e.g., time, frequency, and power). Examples of such multiple-access systems include fourth generation (4G) systems such as Long Term Evolution (LTE) systems, LTE-Advanced (LTE-A) systems, or LTE-A Pro systems, and fifth generation (5G) systems which may be referred to as New Radio (NR) systems. These systems may employ technologies such as code division multiple access (CDMA), time division multiple access (TDMA), frequency division multiple access (FDMA), orthogonal FDMA (OFDMA), or discrete Fourier transform spread orthogonal frequency division multiplexing (DFT-S-OFDM). A wireless multiple-access communications system may include one or more base stations, each supporting wireless communication for communication devices, which may be known as user equipment (UE).SUMMARY

[0004] The described techniques relate to improved methods, systems, devices, and apparatuses that support techniques for performing noise covariance estimation on a per symbol basis in the presence of inconsistent interference levels. Generally, the techniques described herein may enable a user equipment (UE) to determine whether to perform per-symbol noise estimation or per-slot noise estimation. For example, a UE may transmit capability information indicating a capability of the UE to generate a noise matrix on a per-symbol basis. Additionally, the UE may receive, from a serving network entity and based on the capability information, control information that indicates whether interference from one or more neighbor network entities is consistent or inconsistent. Consistent interference may occupy a same bandwidth during all symbols of a slot and inconsistent interference may occupy different bandwidths in different symbols of the slot. As such, the UE may determine whether to perform per- symbol noise estimation or per-slot noise estimation based on the control information. For example, the UE may perform per-slot noise estimation based on the interference from the one or more neighbor network entities being consistent and may perform per- symbol noise estimation based on the interference from the one or more neighbor network entities being inconsistent.

[0005] A method for wireless communications by a first network entity is described. The method may include transmitting capability information of the first network entity, where the capability information indicates a capability of the first network entity to generate a noise matrix on a per-symbol basis, receiving, from a serving network entity and based on the capability information, control information that indicates whether interference from one or more neighbor network entities is consistent or inconsistent, where consistent interference occupies a same bandwidth during all symbols of a slot, and where inconsistent interference occupies different bandwidths in different symbols of the slot, and determining whether to perform per-symbol noise estimation or per-slot noise estimation based on the control information.

[0006] A first network entity for wireless communications is described. The first network entity may include one or more memories storing processor executable code, and one or more processors coupled with the one or more memories. The one or more processors may individually or collectively operable to execute the code to cause thefirst network entity to transmit capability information of the first network entity, where the capability' information indicates a capability of the first network entity to generate a noise matrix on a per-symbol basis, receive, from a serving network entity' and based on the capability information, control information that indicates whether interference from one or more neighbor network entities is consistent or inconsistent, where consistent interference occupies a same bandwidth during all symbols of a slot, and where inconsistent interference occupies different bandwidths in different symbols of the slot, and determine whether to perform per-symbol noise estimation or per-slot noise estimation based on the control information.

[0007] Another first network entity for wireless communications is described. The first network entity' may include means for transmitting capability' information of the first network entity, where the capability information indicates a capability' of the first network entity to generate a noise matrix on a per-symbol basis, means for receiving, from a serving network entity and based on the capability information, control information that indicates whether interference from one or more neighbor network entities is consistent or inconsistent, where consistent interference occupies a same bandwidth during all symbols of a slot, and where inconsistent interference occupies different bandwidths in different symbols of the slot, and means for determining whether to perform per-symbol noise estimation or per-slot noise estimation based on the control information.

[0008] A non-transitory computer-readable medium storing code for wireless communications is described. The code may include instructions executable by one or more processors to transmit capability information of the first network entity, where the capability information indicates a capability of the first network entity to generate a noise matrix on a per-symbol basis, receive, from a serving network entity and based on the capability information, control information that indicates whether interference from one or more neighbor network entities is consistent or inconsistent, where consistent interference occupies a same bandwidth during all symbols of a slot, and where inconsistent interference occupies different bandwidths in different symbols of the slot, and determine whether to perform per-symbol noise estimation or per-slot noise estimation based on the control information.

[0009] In some examples of the method, first network entities, and non-transitory computer-readable medium described herein, the control information indicates that the interference from the one or more neighbor network entities may be consistent and the method, first network entities, and non-transitory computer-readable medium may include further operations, features, means, or instructions for performing per-slot noise estimation based on the interference from the one or more neighbor network entities being consistent.

[0010] In some examples of the method, first network entities, and non-transitory computer-readable medium described herein, the control information indicates that the interference from the one or more neighbor network entities may be inconsistent and the method, first network entities, and non-transitory computer-readable medium may include further operations, features, means, or instructions for performing per-symbol noise estimation based on the interference from the one or more neighbor network entities being inconsistent.

[0011] Some examples of the method, first network entities, and non-transitory computer-readable medium described herein may further include operations, features, means, or instructions for receive, from the serving network entity, updated control information that indicates whether the interference from the one or more neighbor network entities may be consistent or inconsistent, where receipt of the updated control information may be based on a change in interference consistency of the one or more neighbor network entities.

[0012] In some examples of the method, first network entities, and non-transitory computer-readable medium described herein, the capability information may be transmitted via a MAC-CE that may be associated with cell attachment to the serving network entity.

[0013] In some examples of the method, first network entities, and non-transitory computer-readable medium described herein, the capability information may be transmitted based on initiation of communications with the serving network entity.

[0014] Some examples of the method, first network entities, and non-transitory computer-readable medium described herein may further include operations, features,means, or instructions for switching between performance of the per-symbol noise estimation and the per-slot noise estimation based on the control information.

[0015] A method for wireless communications by a serving netw ork entity is described. The method may include receiving capability information of a first network entity, the capability information indicative of a capability of the first network entity to generate a noise matrix on a per-symbol basis, receiving, from one or more neighbor network entities, first control information that indicates whether interference from each of the one or more neighbor network entities is consistent or inconsistent, where consistent interference occupies a same bandwidth during all symbols of a slot, and where inconsistent interference occupies different bandwidths in different symbols of the slot, and transmitting, to the first network node and responsive to the capability information, second control information that indicates whether interference from the one or more neighbor network entities is consistent or inconsistent.

[0016] A serving network entity for wireless communications is described. The serving network entity may include one or more memories storing processor executable code, and one or more processors coupled with the one or more memories. The one or more processors may individually or collectively operable to execute the code to cause the serving network entity to receive capability information of a first network entity, the capability information indicative of a capability of the first network entity to generate a noise matrix on a per-symbol basis, receive, from one or more neighbor network entities, first control information that indicates whether interference from each of the one or more neighbor network entities is consistent or inconsistent, where consistent interference occupies a same bandwidth during all symbols of a slot, and where inconsistent interference occupies different bandwidths in different symbols of the slot, and transmit, to the first network node and responsive to the capability information, second control information that indicates whether interference from the one or more neighbor network entities is consistent or inconsistent.

[0017] Another serving network entity for wireless communications is described. The serving network entity may include means for receiving capability information of a first network entity, the capability information indicative of a capability of the first network entity to generate a noise matrix on a per-symbol basis, means for receiving, from one or more neighbor network entities, first control information that indicateswhether interference from each of the one or more neighbor network entities is consistent or inconsistent, where consistent interference occupies a same bandwidth during all symbols of a slot, and where inconsistent interference occupies different bandwidths in different symbols of the slot, and means for transmitting, to the first network node and responsive to the capability information, second control information that indicates whether interference from the one or more neighbor network entities is consistent or inconsistent.

[0018] A non-transitory computer-readable medium storing code for wireless communications is described. The code may include instructions executable by one or more processors to receive capability information of a first network entity, the capability information indicative of a capability of the first network entity to generate a noise matrix on a per-symbol basis, receive, from one or more neighbor network entities, first control information that indicates whether interference from each of the one or more neighbor network entities is consistent or inconsistent, where consistent interference occupies a same bandwidth during all symbols of a slot, and where inconsistent interference occupies different bandwidths in different symbols of the slot, and transmit, to the first network node and responsive to the capability information, second control information that indicates whether interference from the one or more neighbor network entities is consistent or inconsistent.

[0019] In some examples of the method, serving network entities, and non- transitory' computer-readable medium described herein, the second control information indicates that the interference from the one or more neighbor network entities may be consistent based on the first control information indicating that interference from all of the one or more neighbor network entities may be consistent.

[0020] In some examples of the method, serving network entities, and non- transitory' computer-readable medium described herein, the second control information indicates that the interference from the one or more neighbor network entities may be inconsistent based on the first control information indicating that interference from at least one of the one or more neighbor network entities may be inconsistent.

[0021] Some examples of the method, serving network entities, and non-transitory computer-readable medium described herein may further include operations, features,means, or instructions for transmitting, to each of the one or more neighbor network entities, a request for the one or more neighbor network entities to transmit the first control information.

[0022] In some examples of the method, serving network entities, and non- transitory computer-readable medium described herein, the request may be transmitted based on reception of the capability information.

[0023] In some examples of the method, serving network entities, and non- transitory computer-readable medium described herein, the request may be transmitted periodically.

[0024] In some examples of the method, serving network entities, and non- transitory computer-readable medium described herein, the request may be transmitted via one or more backhaul communication links between the serving network entity and the one or more neighbor network entities.

[0025] Some examples of the method, serving network entities, and non-transitory computer-readable medium described herein may further include operations, features, means, or instructions for transmitting, to the one or more neighbor network entities, an indication of a termination of communications with the first network entity, where the indication triggers a reduction in frequency of transmission of the first control information.

[0026] Some examples of the method, serving network entities, and non-transitory computer-readable medium described herein may further include operations, features, means, or instructions for receiving, from the one or more neighbor network entities, updated first control information that indicates whether the interference from each of the one or more neighbor network entities may be consistent or inconsistent, where receipt of the updated first control information may be based on a change in interference consistency of the one or more neighbor network entities.

[0027] In some examples of the method, serving network entities, and non- transitory' computer-readable medium described herein, the first control information indicates whether interference from each of the one or more neighbor network entities may be consistent or inconsistent for each slot of a set of multiple slots.

[0028] In some examples of the method, serving network entities, and non- transitory computer-readable medium described herein, each slot of the set of multiple slots may be associated with a frequency domain consistency mode of a set of multiple frequency domain consistency modes and the set of multiple frequency domain consistency modes includes a first frequency domain consistency mode associated with consistent inference and a second frequency domain consistent mode associated with inconsistent interference.

[0029] In some examples of the method, serving network entities, and non- transitory computer-readable medium described herein, the first control information may be received via one or more backhaul communication links between the serving network entity and the one or more neighbor network entities.BRIEF DESCRIPTION OF THE DRAWINGS

[0030] FIG. 1 shows an example of a wireless communications system that supports techniques for performing noise covariance estimation on a per symbol basis in the presence of inconsistent interference levels in accordance with one or more aspects of the present disclosure.

[0031] FIG. 2 shows an example of a block diagram that supports techniques for performing noise covariance estimation on a per symbol basis in the presence of inconsistent interference levels in accordance with one or more aspects of the present disclosure.

[0032] FIG. 3 shows an example of a process flow that supports techniques for performing noise covariance estimation on a per symbol basis in the presence of inconsistent interference levels in accordance with one or more aspects of the present disclosure.

[0033] FIG. 4 shows an example of a process flow that supports techniques for performing noise covariance estimation on a per symbol basis in the presence of inconsistent interference levels in accordance with one or more aspects of the present disclosure.

[0034] FIGs. 5 and 6 show block diagrams of devices that support techniques for performing noise covariance estimation on a per symbol basis in the presence ofinconsistent interference levels in accordance with one or more aspects of the present disclosure.

[0035] FIG. 7 shows a block diagram of a communications manager that supports techniques for performing noise covariance estimation on a per symbol basis in the presence of inconsistent interference levels in accordance with one or more aspects of the present disclosure.

[0036] FIG. 8 shows a diagram of a system including a device that supports techniques for performing noise covariance estimation on a per symbol basis in the presence of inconsistent interference levels in accordance with one or more aspects of the present disclosure.

[0037] FIGs. 9 and 10 show block diagrams of devices that support techniques for performing noise covariance estimation on a per symbol basis in the presence of inconsistent interference levels in accordance with one or more aspects of the present disclosure.

[0038] FIG. 11 shows a block diagram of a communications manager that supports techniques for performing noise covariance estimation on a per symbol basis in the presence of inconsistent interference levels in accordance with one or more aspects of the present disclosure.

[0039] FIG. 12 shows a diagram of a system including a device that supports techniques for performing noise covariance estimation on a per symbol basis in the presence of inconsistent interference levels in accordance with one or more aspects of the present disclosure.

[0040] FIGs. 13 through 16 show flowcharts illustrating methods that support techniques for performing noise covariance estimation on a per symbol basis in the presence of inconsistent interference levels in accordance with one or more aspects of the present disclosure.DETAILED DESCRIPTION

[0041] In some wireless communications systems, a first user equipment (UE) may be within or in proximity to coverage areas of multiple network entities, however, thefirst UE may communication with a single serving network entity (e g., of the multiple network entities) based on the serving network entity being associated with a strongest signal strength (e.g., of the multiple network entities). Additionally, the serving network entity may communicate with multiple UEs, including at least the first UE, such that the serving network entity allocates different time resources, different frequency resources, or both, to each of the multiple UEs (e.g., served by the serving network entity). However, other neighbor network entities (e g., of the multiple network entities) may allocate same time resources, same frequency resources, or both, to respective UEs (e.g., served by the neighboring network entities) as the time resources, the frequency resources, or both, allocated by the serving network entity. Thus, downlink signaling transmitted to the respective UEs by the neighbor network entities may interference with downlink signaling transmitted by the serving network entity to the first UE. As such, to mitigate the interference, the first UE may perform noise estimation on a per-slot basis based on the interference from the neighbor network entities. However, in some cases, frequency domain allocations of the neighbor network entities in a slot may be inconsistent, resulting in inconsistent interference. Consistent interference may occupy a same bandwidth during all symbols of the slot and inconsistent interference may occupy different bandwidths in different symbols of the slot. As such, if the first UE performs per-slot noise estimation, the first UE may estimate the noise based on a first symbol of the slot w hich may not be accurate for other symbols of the slot. Thus, the first UE may be unable to mitigate the interference for the other symbols of the slot.

[0042] Accordingly, techniques described herein may enable the serving network entity to indicate, to the first UE, whether interference from one or more neighbor network entities is consistent or inconsistent. For example, the first UE may transmit, to the serving network entity, capability information indicative of a capability of the first UE to generate a noise matrix on a per-symbol basis (e.g.. perform per-sy mbol noise estimation). Additionally, the serving network entity may transmit, to the neighbor network entities, a request for each neighbor network entity to indicate whether interference associated with the respective neighbor network entity is consistent or inconsistent. Thus, each of the neighbor network entities may transmit an indication of whether their respective interference (e.g., allocation) is consistent or inconsistent. If allof the neighbor network entities indicate consistent interference, then the serving network entity may transmit, to the first UE, an indication of consistent interference. Conversely, if at least one neighbor network entity indicates inconsistent interference, then the serving network entity may transmit, to the first UE, an indication of inconsistent interference. Thus, the first UE may perform per-symbol noise estimation or per-symbol noise estimation based on the indication received from the serving network entity. That is, the first UE may perform per-slot noise estimation based on the interference from the one or more neighbor network entities being consistent and may perform per-symbol noise estimation based on the interference from the one or more neighbor network entities being inconsistent.

[0043] Aspects of the disclosure are initially described in the context of wireless communications systems. Aspects are then described in the context of a block diagram and a process flow. Aspects of the disclosure are further illustrated by and described with reference to apparatus diagrams, system diagrams, and flowcharts that relate to techniques for performing noise covariance estimation on a per symbol basis in the presence of inconsistent interference levels.

[0044] FIG. 1 shows an example of a wireless communications system 100 that supports techniques for performing noise covariance estimation on a per symbol basis in the presence of inconsistent interference levels in accordance with one or more aspects of the present disclosure. The wireless communications system 100 may include one or more network entities 105, one or more UEs 115, and a core network 130. In some examples, the wireless communications system 100 may 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 in accordance with other systems and radio technologies, including future systems and radio technologies not explicitly mentioned herein.

[0045] The network entities 105 may be dispersed throughout a geographic area to form the wireless communications system 100 and may include devices in different forms or having different capabilities. In various examples, a network entity 105 may be referred to as a network element, a mobility element, a radio access network (RAN) node, or network equipment, among other nomenclature. In some examples, network entities 105 and UEs 115 may wirelessly communicate via one or more communicationlinks 125 (e.g., a radio frequency (RF) access link). For example, a network entity 105 may support a coverage area 110 (e.g., a geographic coverage area) over which the UEs 115 and the network entity 105 may establish one or more communication links 125. The coverage area 110 may be an example of a geographic area over which a network entity 105 and a UE 115 may support the communication of signals according to one or more radio access technologies (RATs).

[0046] The UEs 115 may be dispersed throughout a coverage area 110 of the wireless communications system 100, and each UE 115 may be stationary, or mobile, or both at different times. The UEs 115 may be devices in different forms or having different capabilities. Some example UEs 115 are illustrated in FIG. 1. The UEs 1 15 described herein may be capable of supporting communications with various types of devices, such as other UEs 115 or network entities 105, as shown in FIG. 1.

[0047] As described herein, a network entity (which may alternatively be referred to as an entity, a node, a network node, or a wireless entity) may be. be similar to. include, or be included in (e.g., be a component of) a base station (e.g., any base station described herein, including a disaggregated base station), a UE (e.g., any UE described herein), a reduced capability7(RedCap) device, an enhanced reduced capability7(eRedCap) device, an ambient intemet-of-things (loT) device, an energy harvesting (EH)-capable device, a network controller, an apparatus, a device, a computing system, an integrated access and backhauling (IAB) node, a distributed unit (DU), a central unit (CU), a remote / radio unit (RU) (which may also be referred to as a remote radio unit (RRU)), and / or another processing entity configured to perform any of the techniques described herein. For example, a network entity may be a UE. As another example, a network entity may be a base station. As used herein, “network entity” may refer to an entity7that is configured to operate in a network, such as the network 105. For example, a “network entity” is not limited to an entity that is currently located in and / or currently operating in the network. Rather, a network entity may be any entity that is capable of communicating and / or operating in the network.

[0048] The adjectives “first,” “second,” “third,” and so on are used for contextual distinction between two or more of the modified noun in connection with a discussion and are not meant to be absolute modifiers that apply only to a certain respective entity throughout the entire document. For example, a network entity may be referred to as a“first network entity” in connection with one discussion and may be referred to as a “second network entity” in connection with another discussion, or vice versa. As an example, a first network entity may be configured to communicate with a second network entity or a third network entity. In one aspect of this example, the first network entity may be a UE, the second network entity may be a base station, and the third network entity may be a UE. In another aspect of this example, the first network entitymay be a UE, the second network entity may be a base station, and the third network entity may be a base station. In yet other aspects of this example, the first, second, and third network entities may be different relative to these examples.

[0049] Similarly, reference to a UE, base station, apparatus, device, computing system, or the like may include disclosure of the UE, base station, apparatus, device, computing system, or the like being a network entity. For example, disclosure that a UE is configured to receive information from a base station also discloses that a first network entity is configured to receive information from a second network entity. Consistent with this disclosure, once a specific example is broadened in accordance with this disclosure (e.g., a UE is configured to receive information from a base station also discloses that a first network entity is configured to receive information from a second network entity), the broader example of the narrower example may be interpreted in the reverse, but in a broad open-ended way. In the example above where a UE is configured to receive information from a base station also discloses that a first network entity is configured to receive information from a second network entity, the first network entity may refer to a first UE, a first base station, a first apparatus, a first device, a first computing system, a first set of one or more one or more components, a first processing entity, or the like configured to receive the information; and the second network entity may refer to a second UE, a second base station, a second apparatus, a second device, a second computing system, a second set of one or more components, a second processing entity, or the like.

[0050] As described herein, communication of information (e.g., any information, signal, or the like) may be described in various aspects using different terminology. Disclosure of one communication term includes disclosure of other communication terms. For example, a first network entity may be described as being configured to transmit information to a second network entity. In this example and consistent withthis disclosure, disclosure that the first network entity is configured to transmit information to the second network entity includes disclosure that the first network entity is configured to provide, send, output, communicate, or transmit information to the second network entity. Similarly, in this example and consistent with this disclosure, disclosure that the first network entity is configured to transmit information to the second network entity includes disclosure that the second network entity is configured to receive, obtain, or decode the information that is provided, sent, output, communicated, or transmitted by the first network entity.

[0051] As shown, the network entity (e.g.. network entity 105) may include a processing system 106. Similarly, the network entity (e.g., UE 115) may include a processing system 112. A processing system may include one or more components (or subcomponents), such as one or more components described herein. For example, a respective component of the one or more components may be, be similar to, include, or be included in at least one memory, at least one communication interface, or at least one processor. For example, a processing system may include one or more components. In such an example, the one or more components may include a first component, a second component, and a third component. In this example, the first component may be coupled to a second component and a third component. In this example, the first component may be at least one processor, the second component may be a communication interface, and the third component may be at least one memory. A processing system may generally be a system one or more components that may perform one or more functions, such as any function or combination of functions described herein. For example, one or more components may receive input information (e.g., any information that is an input, such as a signal, any digital information, or any other information), one or more components may process the input information to generate output information (e g., any information that is an output, such as a signal or any other information), one or more components may perform any function as described herein, or any combination thereof As described herein, an “input” and “input information” may be used interchangeably. Similarly, as described herein, an “output” and “output information” may be used interchangeably. Any information generated by any component may be provided to one or more other systems or components of. for example, a network entity described herein). For example, a processing system mayinclude a first component configured to receive or obtain information, a second component configured to process the information to generate output information, and / or a third component configured to provide the output information to other systems or components. In this example, the first component may be a communication interface (e.g., a first communication interface), the second component may be at least one processor (e.g., that is coupled to the communication interface and / or at least one memory), and the third component may be a communication interface (e.g., the first communication interface or a second communication interface). For example, a processing system may include at least one memory, at least one communication interface, and / or at least one processor, where the at least one processor may, for example, be coupled to the at least one memory' and the at least one communication interface.

[0052] A processing system of a network entity described herein may interface with one or more other components of the network entity, may process information received from one or more other components (such as input information), or may output information to one or more other components. For example, a processing system may include a first component configured to interface with one or more other components of the network entity to receive or obtain information, a second component configured to process the information to generate one or more outputs, and / or a third component configured to output the one or more outputs to one or more other components. In this example, the first component may be a communication interface (e.g., a first communication interface), the second component may be at least one processor (e.g.. that is coupled to the communication interface and / or at least one memory), and the third component may be a communication interface (e.g., the first communication interface or a second communication interface). For example, a chip or modem of the network entity may include a processing system. The processing system may include a first communication interface to receive or obtain information, and a second communication interface to output, transmit, or provide information. In some examples, the first communication interface may be an interface configured to receive input information, and the information may be provided to the processing system. In some examples, the second system interface may be configured to transmit information output from the chip or modem. The second communication interface may also obtain orreceive input information, and the first communication interface may also output, transmit, or provide information.

[0053] In some examples, network entities 105 may communicate with the core network 130, or with one another, or both. For example, network entities 105 may communicate with the core network 130 via one or more backhaul communication links 120 (e.g., in accordance with an SI, N2, N3, or other interface protocol). In some examples, network entities 105 may communicate with one another via a backhaul communication link 120 (e.g., in accordance with an X2, Xn, or other interface protocol) either directly (e.g., directly between network entities 105) or indirectly (e.g., via a core network 130). In some examples, network entities 105 may communicate with one another via a midhaul communication link 162 (e.g., in accordance with a midhaul interface protocol) or a fronthaul communication link 168 (e.g., in accordance with a fronthaul interface protocol), or any combination thereof. The backhaul communication links 120, midhaul communication links 162. or fronthaul communication links 168 may be or include one or more wired links (e g., an electrical link, an optical fiber link), one or more wireless links (e.g., a radio link, a wireless optical link), among other examples or various combinations thereof. A UE 115 may communicate with the core network 130 via a communication link 155.

[0054] One or more of the network entities 105 described herein may include or may be referred to as a base station 140 (e.g., a base transceiver station, a radio base station, an NR base station, an access point, a radio transceiver, aNodeB, an eNodeB (eNB), a next-generation NodeB or a giga-NodeB (either of which may be referred to as a gNB), a 5G NB, a next-generation eNB (ng-eNB). a Home NodeB, a Home eNodeB. or other suitable terminology). In some examples, a network entity 105 (e.g., a base station 140) may be implemented in an aggregated (e.g., monolithic, standalone) base station architecture, which may be configured to utilize a protocol stack that is physically or logically integrated within a single network entity 105 (e.g., a single RAN node, such as a base station 140).

[0055] In some examples, a network entity 105 may be implemented in a disaggregated architecture (e.g., a disaggregated base station architecture, a disaggregated RAN architecture), which may be configured to utilize a protocol stack that is physically or logically distributed among two or more network entities 105, suchas an integrated access backhaul (TAB) 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, a network entity 105 may include one or more of 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), aNon-Real Time RIC (Non-RT RIC)), a Service Management and Orchestration (SMO) 180 system, or any combination thereof. An RU 170 may also be referred to as a radio head, a smart radio head, a remote radio head (RRH), a remote radio unit (RRU), or a transmission reception point (TRP). One or more components of the network entities 105 in a disaggregated RAN architecture may be co-located, or one or more components of the network entities 105 may be located in distributed locations (e.g., separate physical locations). In some examples, one or more network entities 105 of a disaggregated RAN architecture may be implemented as virtual units (e.g., a virtual CU (VCU), a virtual DU (VDU), a virtual RU (VRU)).

[0056] The split of functionality between a CU 160, a DU 165, and an RU 170 is flexible and may support different functionalities depending on which functions (e.g., network layer functions, protocol layer functions, baseband functions, RF functions, and any combinations thereof) are performed at a CU 160, a DU 165, or an RU 170. For example, a functional split of a protocol stack may be employed between a CU 160 and a DU 165 such that the CU 160 may support one or more layers of the protocol stack and the DU 165 may support one or more different layers of the protocol stack. In some examples, the CU 160 may host upper protocol layer (e.g., layer 3 (L3), layer 2 (L2)) functionality and signaling (e.g.. Radio Resource Control (RRC), service data adaption protocol (SDAP), Packet Data Convergence Protocol (PDCP)). The CU 160 may be connected to one or more DUs 165 or RUs 170, and the one or more DUs 165 or RUs 170 may host lower protocol layers, such as layer 1 (LI) (e.g., physical (PHY) layer) or L2 (e.g., radio link control (RLC) layer, medium access control (MAC) layer) functionality and signaling, and may each be at least partially controlled by the CU 1 0. Additionally, or alternatively, a functional split of the protocol stack may be employed between a DU 165 and an RU 170 such that the DU 165 may support one or more layers of the protocol stack and the RU 170 may support one or more different layers of the protocol stack. The DU 165 may support one or multiple different cells (e.g., via one ormore RUs 170). In some cases, a functional split between a CU 160 and a DU 165, or between a DU 165 and an RU 170 may be within a protocol layer (e.g., some functions for a protocol layer may be performed by one of a CU 160, a DU 165, or an RU 170, while other functions of the protocol layer are performed by a different one of the CU 160, the DU 165, or the RU 170). A CU 160 may be functionally split further into CU control plane (CU-CP) and CU user plane (CU-UP) functions. A CU 160 may be connected to one or more DUs 165 via a midhaul communication link 162 (e.g., Fl, Fl-c, Fl-u), and a DU 165 may be connected to one or more RUs 170 via a fronthaul communication link 168 (e.g., open fronthaul (FH) interface). In some examples, a midhaul communication link 162 or a fronthaul communication link 168 may be implemented in accordance with an interface (e.g., a channel) between layers of a protocol stack supported by respective network entities 105 that are in communication via such communication links.

[0057] In wireless communications systems (e.g.. wireless communications system 100), infrastructure and spectral resources for radio access may support wireless backhaul link capabilities to supplement wired backhaul connections, providing an IAB network architecture (e.g., to a core network 130). In some cases, in an IAB network, one or more network entities 105 (e.g., IAB nodes 104) may be partially controlled by each other. One or more IAB nodes 104 may be referred to as a donor entity or an IAB donor. 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 entity7105 (e.g., a donor base station 140). The one or more donor network entities 105 (e.g.. IAB donors) may be in communication with one or more additional network entities 105 (e.g., IAB nodes 104) via supported access and backhaul links (e.g., backhaul communication links 120). IAB nodes 104 may include an IAB mobile termination (IAB-MT) controlled (e.g., scheduled) by DUs 165 of a coupled IAB donor. An IAB-MT may include an independent set of antennas for relay of communications with UEs 115, or may share the same antennas (e g., of an RU 170) of an IAB node 104 used for access via the DU 165 of the IAB node 104 (e.g., referred to as virtual IAB-MT (vIAB-MT)). In some examples, the IAB nodes 104 may include DUs 165 that support communication links with additional entities (e.g.. IAB nodes 104, UEs 115) within the relay chain or configuration of the access network (e.g., downstream). In such cases, one or morecomponents of the disaggregated RAN architecture (e.g., one or more TAB nodes 104 or components of I AB nodes 104) may be configured to operate according to the techniques described herein.

[0058] In the case of the techniques described herein applied in the context of a disaggregated RAN architecture, one or more components of the disaggregated RAN architecture may be configured to support techniques for performing noise covariance estimation on a per symbol basis in the presence of inconsistent interference levels as described herein. For example, some operations described as being performed by a UE 115 or a network entity 105 (e.g., a base station 140) may additionally, or alternatively, be performed by one or more components of the disaggregated RAN architecture (e.g., IAB nodes 104, DUs 165, CUs 160, RUs 170, RIC 175, SMO 180).

[0059] A UE 115 may include or may be referred to as a mobile device, a wireless device, a remote device, a handheld device, or a subscriber device, or some other suitable terminology, where the "‘device"’ may also be referred to as a unit, a station, a terminal, or a client, among other examples. A UE 115 may also include or may 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, a UE 115 may include or be referred to as a wireless local loop (WLL) station, an Internet of Things (loT) device, an Internet of Everything (loE) device, or a machine type communications (MTC) device, among other examples, which may be implemented in various objects such as appliances, or vehicles, meters, among other examples.

[0060] The UEs 115 described herein may be able to communicate with various types of devices, such as other UEs 115 that may sometimes act as relays as well as the network entities 105 and the network equipment including macro eNBs or gNBs, small cell eNBs or gNBs, or relay base stations, among other examples, as shown in FIG. 1.

[0061] The UEs 115 and the netw ork entities 105 may wirelessly communicate w ith one another via one or more communication links 125 (e.g.. an access link) using resources associated with one or more earners. The term “carrier” may refer to a set of RF spectrum resources having a defined physical layer structure for supporting the communication links 125. For example, a carrier used for a communication link 125may include a portion of a RF spectrum band (e.g., a bandwidth part (BWP)) that is operated 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 that coordinates operation for the carrier, user data, or other signaling. The wireless communications system 100 may support communication with a UE 115 using carrier aggregation or multi-carrier operation. A UE 115 may be configured with multiple downlink component earners and one or more uplink component carriers according to a carrier aggregation configuration. Carrier aggregation may be used with both frequency division duplexing (FDD) and time division duplexing (TDD) component carriers. Communication between a network entity 105 and other devices may refer to communication between the devices and any portion (e.g., entity , subentity) of a network entity 105. For example, the terms “transmitting,” “receiving,” or “communicating,” when referring to a network entity 105, may refer to any portion of a network entity 105 (e.g., a base station 140, a CU 160, a DU 165, a RU 170) of a RAN communicating with another device (e.g., directly or via one or more other network entities 105).

[0062] Signal waveforms transmitted via a carrier may be made up of 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 MCM techniques, a resource element may refer to resources of one symbol period (e.g., a duration of one modulation symbol) and one subcarrier, in which case the symbol period and subcarrier spacing may be inversely related. The quantity of bits carried by each resource element may depend on the modulation scheme (e.g., the order of the modulation scheme, the coding rate of the modulation scheme, or both), such that a relatively higher quantity of resource elements (e.g., in a transmission duration) and a relatively higher order of a modulation scheme may correspond to a relatively higher rate of communication. A wireless communications resource may refer to a combination of an RF spectrum resource, a time resource, and a spatial resource (e.g., a spatial layer, a beam), and the use of multiple spatial resources may increase the data rate or data integrity for communications with a UE 115.

[0063] The time intervals for the network entities 105 or the UEs 1 15 may be expressed in multiples of a basic time unit which may, for example, refer to a sampling period of Ts= l / fmax■ Nf) seconds, for which fmaxmay represent a supported subcarrier spacing, and N may represent a supported discrete Fourier transform (DFT) size. Time intervals of a communications resource may be organized according to radio frames each having a specified duration (e.g., 10 milliseconds (ms)). Each radio frame may be identified by a system frame number (SFN) (e.g., ranging from 0 to 1023).

[0064] Each frame may include multiple consecutively -numbered subframes or slots, and each subframe or 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 maybe further divided into a quantity of slots. Alternatively, each frame may include a variable quantity of slots, and the quantity of slots may depend on subcarrier spacing. Each slot may include a quantity of symbol periods (e.g., depending on the length of the cyclic prefix prepended to each symbol period). In some wireless communications systems 100, a slot may further be divided into multiple mini-slots associated with one or more symbols. Excluding the cyclic prefix, each symbol period may be associated with one or more (e g., / Vy) sampling periods. The duration of a symbol period may depend on the subcarrier spacing or frequency band of operation.

[0065] A subframe, a slot, a mini-slot, or a symbol may be the smallest scheduling unit (e.g., in the time domain) of the wireless communications system 100 and may be referred to as a transmission time interval (TTI). In some examples, the TTI duration (e.g., a quantity of symbol periods in a TTI) may be variable. Additionally, or alternatively, the smallest scheduling unit of the wireless communications system 100 may be dynamically selected (e.g.. in bursts of shortened TTIs (sTTIs)).

[0066] Physical channels may be multiplexed for communication using a carrier according to various techniques. A physical control channel and a physical data channel may be multiplexed for signaling via a downlink carrier, for example, using one or more of time division multiplexing (TDM) techniques, frequency division multiplexing (FDM) techniques, or hybrid TDM-FDM techniques. A control region (e.g., a control resource set (CORESET)) for a physical control channel may be defined by a set of symbol periods and may extend across the system bandwidth or a subset of the systembandwidth of the carrier. One or more control regions (e.g., CORESETs) may be configured for a set of the UEs 115. For example, one or more of the UEs 115 may monitor or search control regions for control information according to one or more search space sets, and each search space set may include one or multiple control channel candidates in one or more aggregation levels arranged in a cascaded manner. An aggregation level for a control channel candidate may refer to an amount of control channel resources (e.g., control channel elements (CCEs)) associated with encoded information for a control information format having a given payload size. Search space sets may include common search space sets configured for sending control information to multiple UEs 115 and UE-specific search space sets for sending control information to a specific UE 115.

[0067] A network entity 105 may provide communication coverage via one or more cells, for example a macro cell, a small cell, a hot spot, or other types of cells, or any combination thereof. The term “celf’ may refer to a logical communication entity used for communication with a network entity 105 (e.g., using a carrier) and may be associated with an identifier for distinguishing neighboring cells (e.g., a physical cell identifier (PCID), a virtual cell identifier (VCID), or others). In some examples, a cell also may refer to a coverage area 110 or a portion of a coverage area 110 (e.g., a sector) over which the logical communication entity operates. Such cells may range from smaller areas (e.g., a structure, a subset of structure) to larger areas depending on various factors such as the capabilities of the network entity 105. For example, a cell may be or include a building, a subset of a building, or exterior spaces between or overlapping with coverage areas 110, among other examples.

[0068] A macro cell generally covers a relatively large geographic area (e.g., several kilometers in radius) and may allow unrestricted access by the UEs 115 with service subscriptions with the netw ork provider supporting the macro cell. A small cell may be associated with a lower-powered network entity 105 (e.g., a lower-powered base station 140), as compared with a macro cell, and a small cell may operate using the same or different (e.g., licensed, unlicensed) frequency bands as macro cells. Small cells may provide unrestricted access to the UEs 115 with service subscriptions with the netw ork provider or may provide restricted access to the UEs 115 having an association with the small cell (e.g.. the UEs 115 in a closed subscriber group (CSG), the UEs 1 15associated with users in a home or office). A network entity 105 may support one or multiple cells and may also support communications via the one or more cells using one or multiple component carriers.

[0069] In some examples, a carrier may support multiple cells, and different cells may be configured according to different protocol types (e.g.. MTC, narrowband loT (NB-IoT), enhanced mobile broadband (eMBB)) that may provide access for different types of devices.

[0070] In some examples, a network entity 105 (e.g., a base station 140, an RU 170) may be movable and therefore provide communication coverage for a moving coverage area 110. In some examples, different coverage areas 110 associated with different technologies may overlap, but the different coverage areas 1 10 may be supported by the same network entity 105. In some other examples, the overlapping coverage areas 110 associated with different technologies may be supported by different network entities 105. The wireless communications system 100 may include, for example, a heterogeneous network in which different types of the network entities 105 provide coverage for various coverage areas 110 using the same or different radio access technologies.

[0071] The wireless communications system 100 may support synchronous or asynchronous operation. For synchronous operation, network entities 105 (e.g., base stations 140) may have similar frame timings, and transmissions from different network entities 105 may be approximately aligned in time. For asynchronous operation, network entities 105 may have different frame timings, and transmissions from different network entities 105 may, in some examples, not be aligned in time. The techniques described herein may be used for either synchronous or asynchronous operations.

[0072] The wireless communications system 100 may be configured to support ultra-reliable communications or low-latency communications, or various combinations thereof. For example, the wireless communications system 100 may be configured to support ultra-reliable low-latency communications (URLLC). The UEs 115 may be designed to support ultra-reliable, low-latency, or critical functions. Ultra-reliable communications may include private communication or group communication and may be supported by one or more sendees such as push-to-talk, video, or data. Support forultra-reliable, low-latency functions may include prioritization of services, and such services may be used for public safety or general commercial applications. The terms ultra-reliable, low-latency, and ultra-reliable low-latency may be used interchangeably herein.

[0073] In some examples, a UE 115 may be configured to support communicating directly with other UEs 115 via a device-to-device (D2D) communication link 135 (e.g., in accordance with a peer-to-peer (P2P), D2D, or sidelink protocol). In some examples, one or more UEs 115 of a group that are performing D2D communications may be within the coverage area 110 of a network entity 105 (e.g., a base station 140, an RU 170), which may support aspects of such D2D communications being configured by (e.g., scheduled by) the network entity 105. In some examples, one or more UEs 115 of such a group may be outside the coverage area 110 of a network entity7105 or may be otherwise unable to or not configured to receive transmissions from a network entity 105. In some examples, groups of the UEs 115 communicating via D2D communications may support a one-to-many (1:M) system in which each UE 115 transmits to each of the other UEs 115 in the group. In some examples, a network entity 105 may facilitate the scheduling of resources for D2D communications. In some other examples, D2D communications may be carried out between the UEs 115 without an involvement of a network entity 105.

[0074] The core network 130 may provide user authentication, access authorization, tracking, Internet Protocol (IP) connectivity, and other access, routing, or mobility functions. The core network 130 may be an evolved packet core (EPC) or 5G core (5GC), which may include at least one control plane entity that manages access and mobility (e.g., a mobility management entity (MME), an access and mobility management function (AMF)) and at least one user plane entity that routes packets or interconnects to external networks (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 may manage non-access stratum (NAS) functions such as mobility, authentication, and bearer management for the UEs 115 served by the network entities 105 (e.g., base stations 140) associated with the core network 130. User IP packets may be transferred through the user plane entity, which may provide IP address allocation as well as other functions. The user plane entity may be connected to IP services 150 forone or more network operators. The TP services 150 may include access to the Internet, Intranet(s), an IP Multimedia Subsystem (IMS), or a Packet-Switched Streaming Service.

[0075] The wireless communications system 100 may operate using one or more frequency bands, which may be in the range of 300 megahertz (MHz) to 300 gigahertz (GHz). Generally, the region from 300 MHz to 3 GHz is known as the ultra-high frequency (UHF) region or decimeter band because the wavelengths range from approximately one decimeter to one meter in length. UHF waves may be blocked or redirected by buildings and environmental features, which may be referred to as clusters, but the waves may penetrate structures sufficiently for a macro cell to provide service to the UEs 115 located indoors. Communications using UHF waves may be associated with smaller antennas and shorter ranges (e.g., less than 100 kilometers) compared to communications using the smaller frequencies and longer waves of the high frequency (HF) or very high frequency (VHF) portion of the spectrum below 300 MHz.

[0076] The wireless communications system 100 may utilize both licensed and unlicensed RF spectrum bands. For example, the wireless communications system 100 may employ License Assisted Access (LAA), LTE-Unlicensed (LTE-U) radio access technology, or NR technology using an unlicensed band such as the 5 GHz industrial, scientific, and medical (ISM) band. While operating using unlicensed RF spectrum bands, devices such as the network entities 105 and the UEs 115 may employ carrier sensing for collision detection and avoidance. In some examples, operations using unlicensed bands may be based on a earner aggregation configuration in conjunction with component carriers operating using a licensed band (e.g., LAA). Operations using unlicensed spectrum may include downlink transmissions, uplink transmissions, P2P transmissions, or D2D transmissions, among other examples.

[0077] A network entity 105 (e.g., a base station 140, an RU 170) or a 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) communications, or beamforming. The antennas of a network entity 105 or a UE 115 may be located within one or more antenna arrays or antenna panels, which may support MIMO operations or transmit or receive beamforming. For example, one or more basestation antennas or antenna arrays may be co-located at an antenna assembly, such as an antenna tower. In some examples, antennas or antenna arrays associated with a network entity 105 may be located at diverse geographic locations. A network entity 105 may include an antenna array with a set of rows and columns of antenna ports that the network entity 105 may use to support beamforming of communications with a UE 1 15. Likewise, a UE 115 may include one or more antenna arrays that may support various MIMO or beamforming operations. Additionally, or alternatively, an antenna panel may support RF beamforming for a signal transmitted via an antenna port.

[0078] Beamforming, which may also be referred to as spatial filtering, directional transmission, or directional reception, is a signal processing technique that may be used at a transmitting device or a receiving device (e.g., a network entity 105, a UE 115) to shape or steer an antenna beam (e.g., a transmit beam, a receive beam) along a spatial path between the transmitting device and the receiving device. Beamforming may be achieved by combining the signals communicated via antenna elements of an antenna array such that some signals propagating along particular orientations with respect to an antenna array experience constructive interference while others experience destructive interference. The adjustment of signals communicated via the antenna elements may include a transmitting device or a receiving device applying amplitude offsets, phase offsets, or both to signals carried via the antenna elements associated with the device. The adjustments associated with each of the antenna elements may be defined by a beamforming weight set associated with a particular orientation (e.g., with respect to the antenna array of the transmitting device or receiving device, or with respect to some other orientation).

[0079] The wireless communications system 100 may support indication of consistent or inconsistent interference from one or more neighbor network entities. For example, a UE 115 may transmit, to a serving network entity 105, capability information indicative of a capability of the UE 115 to generate a noise matrix on a per- symbol basis (e.g., perform per-symbol noise estimation). Additionally, the serving network entity 105 may transmit, to other neighbor network entities 105, a request for each neighbor network entity 105 to indicate whether interference associated with the respective neighbor network entity 105 is consistent or inconsistent. Thus, each of the neighbor network entities 105 may transmit an indication of whether their respectiveinterference is consistent or inconsistent. If all of the neighbor network entities 105 indicate consistent interference, then the serving network entity 105 may transmit, to the UE 115, an indication of consistent interference. Conversely, if at least one neighbor network entity 105 indicates inconsistent interference, then the serving network entity 105 may transmit, to the UE 115, an indication of inconsistent interference. Thus, the UE 115 may perform per-symbol noise estimation or per-symbol noise estimation based on the indication received from the serving network entity 105. That is, the UE 115 may perform per-slot noise estimation based on the interference from the one or more neighbor network entities 105 being consistent and may perform per-symbol noise estimation based on the interference from the one or more neighbor network entities 105 being inconsistent.

[0080] FIG. 2 shows an example of a wireless communications system 200 that supports techniques for performing noise covariance estimation on a per symbol basis in the presence of inconsistent interference levels in accordance with one or more aspects of the present disclosure. In some cases, the wireless communications system 200 may implement or be implemented by aspects of the wireless communications system 100. For example, the wireless communications system 200 may include one or more UEs 115 (e.g.. a UE 115-a) and one or more network entities 105 (e.g., a network entity 105-a and a network entity 105-b), which may be examples of the corresponding devices as described herein.

[0081] In some cases, the wireless communications system 200 may support (e.g., consist of) multiple network entities 105, such as a netw ork entity 105-a and a network entity 105-b (e.g., among other network entities 105), that are located within a proximity of each other (e.g., are densely deployed in a hexagonal structure). As such, a UE 115, such as the UE 115-a, may be within or in proximity to coverage areas of the multiple netw ork entities 105. For example, the UE 115-a may be within a first coverage area of the network entity 105-a and a second coverage area of the network entity 105-b. However, the UE 115-a may communicate with a single serving network entity' 105 based on the serving netw ork entity' 105 being associated with a strongest signal strength (e.g., of the multiple network entities 105). For example, the UE 115-a may receive signals from the network entity 105-a stronger than signals from thenetwork entity 105-b, such that the network entity 105-a is the serving network entity 105-a for the UE 115-a.

[0082] In some cases, the serving network entity 105-a may support (e.g., communicate with) multiple UEs 115, including the UE 115-a and one or more additional UEs 115. As such, the serving network entity 105-a may allocate different time resources (e.g. a unique time slot), different frequency resources (e.g., a unique frequency band), or both, to each of the multiple UEs 115 (e.g., to each UE 115 served by the serving network entity 105-a) to avoid interference between downlinks (e.g., to the multiple UEs 115) from the serving network entity 105-a.

[0083] However, in some cases, other neighbor network entities 105. such as the network entity 105-b, may allocate same time resources, same frequency resources, or both, to respective UEs 115 served by the network entity 105-b as the time resources, frequency resources, or both, allocated by the serving network entity 105-a to the UE 115-a (e.g.. an the additional UEs 115). In some cases (e.g., good scenarios), distance between the UEs 1 15 served by the serving network entity 105-a and UEs 115 served by the network entity 105-b may exceed a threshold, such that downlink signaling by the serving network entity7105-a does not interfere with downlink signaling by the network entity 105-b (e.g., and visa-versa). However, in some other cases, downlink signaling transmitted by the network entity 105-b may interfere with downlink signaling transmitted by the serving network entity 105-a (e.g., to the UE 1 15-a). For example, each UE 115 served by the serving network entity 105-a, including the UE 115-a, may receive signals transmitted by the serving network entity 105-a, as well as signals transmitted by one or more neighbor network entities 105, including at least the network entity 105-b. For example, the UE 115-a may receive signals transmitted by the serving network entity 105-a, the network entity 105-b, and an additional network entity 105 according to the following Equation 1 : y = H1x1+ H2X2+ H3x3+ n (1) where the parameter y may represent the observed signal at the UE 115-a, the parameters H1. H2. and H3may represent respective channels between the network entities 105 and the UE 115-a, the parameters xr, x2, and x3may represent respective data transmitted by each of the netw ork entities 105, and the parameter n may representreceiver thermal noise at the UE 1 15-a. As described previously, in some cases (e.g., good scenarios), distance between the UE 115-a served by the serving network entity 105-a and UEs 115 served by the network entity 105-b may exceed the threshold, such that ||W3x3||, ||W2%2 ll « ll^i ^r IL ll IL Thus, the observed signal, y, at the UE 115-a may be written as y = H1x1+ n.

[0084] Conversely, as described previously, in some other cases, downlink signaling transmitted by the netw ork entity 105-b may interfere with downlink signaling transmitted by the serving network entity 105-a to the UE 115-a. In other words, signal demodulation by the UE 115-a may be interfered by signals transmitted by the network entity 105-b (e.g., neighbor network entities 105). In such cases, the interference (e.g., H2x2and H3x3) may limit an achievable signal to noise ratio (SNR) of the UE 115-a, limiting an attainable data rate of the UE 115-a.

[0085] As such, to mitigate interference, the UE 115-a may estimate the other channels (e.g., H2and H3) associated with the neighbor network entities 105. For example, the UE 115-a may support an interference rejection combining (IRC) linear minimum mean square error (LMMSE) receiver. In such receivers, H2x2, H3x3, and n may be treated as interference and noise, respectively, whilemay be a main channel (e.g., a channel associated with the serving network entitymay be main data (e.g., data transmitted by the serving network entity 105-a) that may be received by the UE 115-a (e.g., may need to be detected). Thus, the IRC LMMSE receiver at the UE 115-a may estimate the noise, nfc, by subtracting the estimated channel,multiplied by the DMRS,from the observed signal, yk, as illustrated in the following Equation 2:w here the parameter k may represent a frequency domain index.

[0086] As such, the UE 115-a may use the estimated noise, nk, to calculate an autocovariance matrix of the noise (e.g., noise matrix), Rnn=as part of an LMMSE expression of an equalizer, according to the following Equation 3:

[0087] However, in some examples, frequency domain allocations of the neighbor network entities 105, such as the network entity 105-b, in a slot 225 may be inconsistent, resulting in inconsistent interference across the slot. That is, a consistent frequency domain allocation 210-b may be characterized by (e.g.. based on) each symbol 230 (e.g., OFDM symbol) in a slot 225 being associated with a same occupied bandwidth (BW) 215 (e.g., and unoccupied BW 220). That is, according to the consistent frequency domain allocation 210-b, the occupied BW 215 in each symbol 230 of the slot 225 may align. Conversely, an inconsistent frequency domain allocation 210-a may be characterized by at least one symbol 230 in a slot 225 being inconsistent (e.g., each symbol 230 of the slot 225 may not be associated with a same occupied BW 215). That is, according to the inconsistent frequency domain allocation 210-a, at least a portion of an occupied BW 215 of at least one symbol 230 of the slot 225 may at least partially overlap with an unoccupied BW 220 of another symbol 230 of the slot 225.

[0088] In some cases, inconsistent frequency domain allocations 210-a by the serving network entity 105-a (e g., and neighbor network entities 105) may be based on a data transmission by the serving network entity 105-a not consisting of enough bits to fill all slots 225 in a given duration. Additionally, or alternatively (e.g., in a scenario of TDM / FDM for multiple UEs 115), allocations by the serving network entity 105-a for different UEs 115 (e.g., served by the network entity 105-a) may be associated with different frequency domain lengths, time domain lengths, or both, resulting in inconsistent frequency domain allocations 210-a. Additionally, or alternatively, a slot 225 may include both uplink information and downlink information, resulting in inconsistent frequency domain allocations 210-a.

[0089] As described previously, a receiver (e.g., traditional IRC receiver) at the UE 115-a may determine (e.g., conclude) an interference level in a downlink data symbol 230 (e.g., physical downlink shared channel (PDSCH) symbol) based on an estimated noise level in a demodulation reference signal (DMRS) symbol 230. However, in a scenario of an inconsistent frequency domain allocation 210-a, an interference level of the downlink data symbol 230 may be different than an interference level of the DMRS symbol 230. As such, if the UE 115-a performs a per-slot noise estimation (e.g., according to Equations 2 and 3), the UE 115-a may estimate noise for a slot 225 based on a DMRS symbol 230 of the slot 225, which may not be accurate for other symbols230 (e.g., downlink data symbol(s) 230) of the slot 225. Thus, the UE 115-a may be unable to mitigate interference for the other symbols 230 of the slot 225.

[0090] In some cases, to estimate noise for a slot 225 associated with an inconsistent frequency domain allocation 210-a, the UE 115 -a may apply one or more interferer rejection methods that do not assume a same interference level across different symbols 230 (e.g., OFDM symbols) of a slot 225. For example, the UE 115-a may perform a per-symbol noise estimation, such as through implementation of a Data-Aided IRC receiver, as described further with reference to FIG. 3. However, the UE 115-a may be unable to determine when to perform per-slot noise estimation and when to perform per- symbol noise estimation. As such, the UE 115-a may perform per-symbol noise estimation in the presence of a consistent frequency domain allocation 210-b, which may result in increased latency and increased power consumption, may perform per-slot noise estimation in the presence of an inconsistent frequency domain allocation 210-a, w hich may result in an inability to mitigate interference, or both.

[0091] Accordingly, techniques described herein may enable the serving network entity 105-a to indicate, to the UE 115-a, whether interference from one or more neighbor network entities 105, such as the network entity7105-b, is consistent or inconsistent. For example, the UE 115-a may transmit, to the serving network entity 105-a (e.g.. via uplink), capability information 205 (e.g., via a capability message) indicative of a capability of the first UE to generate a noise matrix on a per-symbol basis (e.g., perform Rnnper-symbol noise estimation). In some examples, the UE 115-a may transmit the capability information 205 via a control message (e.g., medium access control (MAC)-control element (MAC-CE) message) at a beginning of communications with the serving network entity 105-a. For example, the UE 115-a may transmit the control message indicating the capability information 205 based on performing (e.g., upon) cell attachment (e.g., with the serving network entity 105-a).

[0092] Additionally, the serving network entity 105-a may transmit, to one or more neighbor network entities 105. such as the network entity 105-b, control information 235-a (e g., via a request message) requesting each neighbor network entity7105 to indicate whether interference associated with the respective neighbor network entity 105 (e.g., respective transmissions) is consistent or inconsistent (e.g., inside one or more slots 225). The serving network entity 105-a may transmit the control information235-a indirectly to the one or more neighbor network entities 105 via a backhaul communication link via a core network 130, directly to the one or more neighbor network entities 105, such as via an X2 communication link (e.g.. without the core network being involved), or both. In some examples, the serving network entity 105 -a may transmit the control information 235-a based on receiving the capability information 205. Additionally, or alternatively, the serving network entity 105-a may transmit the control information 235-a periodically. For example, the serving network entity 105-a may transmit the control information 235-a every x slots (e.g., every 5 slots).

[0093] Each neighbor network entity 105, such as the network entity 105-b, may transmit, to the serving network entity 105-a (e.g., indirectly via the core network, directly, or both), control information 235-b indicating whether interference associated with the respective neighbor network entity 105 is consistent or inconsistent. In some examples, the network entity 105-b may transmit the control information 235-b in response to receiving the control information 235-a. Additionally, or alternatively, the network entity 105-b may transmit the control information 235-b based on a change in a frequency domain consistency mode (e.g., consistency status) of the network entity 105-b. That is. a first frequency domain consistency mode may be associated with a consistent frequency domain allocation and a second frequency domain consistency mode may be associated with an inconsistent frequency domain allocation. As such, the network entity 105-b may transmit the control information 235-b each time that the frequency domain consistency mode of the network entity 105-b changes. Additionally, or alternatively, the control information 235-b may indicate a frequency domain consistency mode for each upcoming slot 225. That is, the control information 235-b may indicate whether interference associated with the neighbor network entity 105-b is consistent or inconsistent for each upcoming slot 225 (e.g., several options corresponding to a frequency domain consistency for each upcoming slots 225).

[0094] Thus, the serving network entity 105-a may transmit, to the UE 115-a, control information 235-c (e.g., a consistency indication) indicating whether interference from the one or more neighbor network entities 105, such as the network entity 105-b, is consistent or inconsistent. If all of the one or more neighbor network entities 105 indicate consistent interference, then the serving network entity’ 105-a maytransmit, to the UE 1 15-a, an indication of consistent interference (e g., control information 235-a indicating consistent interference). Conversely, if at least one neighbor network entity 105 of the one or more neighbor network entities 105 indicates inconsistent interference, then the serving network entity 105-a may transmit, to the UE 115-a, an indication of inconsistent interference (e.g., control information 235-a indicating inconsistent interference). In some cases, the serving network entity 105-a may transmit, to the UE 115-a, the control information 235-c based on a change in consistency of interference from the one or more neighbor network entities 105. That is, the serving network entity 105-a may transmit, to the UE 115-a, control information 235-c (e g., another message) each time a change in consistency of interference from the one or more neighbor network entities 105 occurs (e.g., a consistency status change occurs).

[0095] As such, the UE 115-a may determine whether to perform per-symbol noise estimation or per-symbol noise estimation based on the control information 235-c (e.g., consistency indication) received from the serving network entity 105-a. That is, the UE 115-a may perform per-slot noise estimation (e.g., IRC LMMSE, Rnnper-slot noise estimation) based on the interference from the one or more neighbor network entities 105 being consistent (e.g., based on the control information 235-c indicating consistent interference) and may perform per-symbol noise estimation (e.g., Data-Aided IRC LMMSE, Rnnper-symbol noise estimation), as described with reference to FIG. 3, based on the interference from the one or more neighbor network entities 105 being inconsistent (e.g., based on the control information 235-c indicating inconsistent interference). In other words, the UE 115-a may switch between performing per-slot noise estimation and per-symbol noise estimation based on the control information 235-c.

[0096] In some cases (e.g.. the serving network entity 105-a does not periodically transmit the control information 235-b), the serving network entity 105-a may transmit, to the one or more neighbor network entities 105 (e.g., indirectly via the core network, directly, or both), control information 235-d indicating that communications with the UE 115-a are complete (e.g., are over, have ended). That is, the serving network entity 105-a may transmit the control information 235-d to prevent the one or more neighbor network entities 105 from transmitting additional control information 235-b.

[0097] FIG. 3 shows an example of a block diagram 300 that supports techniques for performing noise covariance estimation on a per symbol basis in the presence of inconsistent interference levels in accordance with one or more aspects of the present disclosure. In some cases, the block diagram 300 may implement or be implemented by aspects of the wireless communications system 100, the wireless communications system 200, or both. For example, the block diagram 300 may be implemented by one or more UEs 115 and one or more network entities, which may be examples of the corresponding devices as described herein.

[0098] As described previously, a serving network entity 105 may indicate, to a UE 115, whether interference from one or more neighbor network entities is consistent or inconsistent, such that the UE 115 may determine whether to perform per-slot noise estimation or per-symbol noise estimation for a slot. For example, the serving network entity 105 may transmit an indication that the interference from the one or more neighbor network entities 105 is consistent. As such, the UE 115 may perform per-slot noise estimation (e.g., IRC LMMSE, Rnnper-slot noise estimation), as described with reference to FIG. 2. In another example, the serving network entity' 105 may transmit an indication that the interference from the one or more neighbor network entities 105 is inconsistent. As such, the UE 115 may perform per-symbol noise estimation (e.g..Data-Aided IRC LMMSE, Rnnper-symbol noise estimation).

[0099] For example, the UE 115 may support a Data-Aided IRC receiver, as depicted in the block diagram 300. In such cases, an autocovariance matrix of noise (e.g., noise matrix), Rnn. used as part of an LMMSE expression of an equalizer 305, as described with reference to Equation 3 (e.g.. with reference to FIG. 2), may be estimated over a DMRS symbol of a slot (e g., conventionally) and estimated again for each downlink data signal of the slot (e.g., for each of the PDSCH symbols).

[0100] For example, for each symbol (e.g., OFDM symbol) of a slot, an observed signal, y. may be passed through the equalizer 305 based on an estimated channel (e.g., from the DMRS), H, and an initial expression of Rnn, RnnInit- Insome examples, the initial expression of Rnn. Rnnjmay be an identity' matrix multiplied by a power or an Rnnof a previous symbol. Additionally, in some cases, the UE 115 may assume that the estimated channel, H, may remain constant with respect to a time domain during theslot. Additionally, the equalized signal may pass through a hard slicer 310 with respect to an operated modulation and coding scheme (MCS). Further, the Rnnmay be re- estimated (e.g.. at an estimator 315) based on Equation 2, as described with reference to FIG. 2. where xkmay be an output of the hard slicer 310. Thus, the newly estimated Rnnmay be input into the equalizer 305 in place of the initial expression of Rnn, RnnInit- such that the aforementioned process may be repeated.

[0101] In some cases, the aforementioned processing using the equalizer 305, the hard slicer 310, and the estimator 315 may be performed a threshold quantity of times (e.g., N times) for each symbol of the slot, where the threshold quantity of times (e.g., iterations) may be determined in advance (e.g., via configuration by the serving network entity 105, determined by the UE 115, or both). Additionally, or alternatively, the aforementioned processing using the equalizer 305, the hard slicer 310. and the estimator 315 may be performed until a convergence threshold is satisfied. As such (e.g., after completion of the threshold quantity of iterations or satisfaction of the convergence threshold), a soft output, x. may be generated and may be input into a decoder at the UE 115.

[0102] FIG. 4 shows an example of a process flow 400 that supports techniques for performing noise covariance estimation on a per symbol basis in the presence of inconsistent interference levels in accordance with one or more aspects of the present disclosure. In some cases, the process flow 400 may implement or be implemented byaspects of the wireless communications system 100. the wireless communications system 200, the block diagram 300, or any combination thereof. For example, the process flow 400 may include one or more UEs 115 (e.g., a UE 115-b) and one or more network entities 105 (e.g., a network entity7105-c and a core network 130-a), which maybe examples of the corresponding devices as described herein.

[0103] At 405, the UE 115-b, served by the network entity 105-c. may transmit, to the network entity 105-c, capability information indicating a capability of the UE 1 15-b to generate a noise matric on a per-symbol basis (e.g., perform Data- Aided IRC LMMSE, perform Rnnper-symbol noise estimation). In some examples, the capabilityinformation may be transmitted via a MAC-CE message that is associated with cell attachment to the network entity 105-c. Additionally, or alternatively, the capabilityinformation may be transmitted based on initiation of communications with the network entity 105-c.

[0104] In some cases, at 410, the network entity 105-c may transmit, to each of one or more neighboring network entities 105 via one or more backhaul communication links, a request (e.g.. allocation request) for the respective network entity 105 to transmit first control information that indicates whether interference from the respective network entity is consistent or inconsistent, where consistent interference occupies a same bandwidth during all symbols of a slot, and where inconsistent interference occupies different bandwidths in different symbols of the slot.

[0105] In some examples, the first control information may indicate whether interference from each of the one or more neighbor network entities 105 is consistent or inconsistent for each slot of a set of slots. In such cases, each slot of the set of slots may be associated with a frequency domain consistency mode from a set of frequency domain consistency modes. The set of frequency domain consistency modes may include a first frequency domain consistency mode associated with consistent inference and a second frequency domain consistent mode associated with inconsistent interference.

[0106] In some cases, the request may be transmitted based on receiving the capability information. Additionally, or alternatively, the request may be transmitted periodically. In some cases (e.g., as depicted in FIG. 4), the network entity 105-c may transmit the request to each of one or more neighboring network entities 105 via the core network 130-a. Additionally, or alternatively, the network entity' 105-c may transmit the request to each of one or more neighboring network entities 105 directly via an X2 interface.

[0107] At 415, the network entity 105-c may receive, from each of one or more neighboring network entities 105 via the one or more backhaul communication links, the first control information (e.g., an allocation response) that indicates whether interference from the respective network entity is consistent or inconsistent.

[0108] Additionally, at 420, the network entity 105-c may transmit (e.g., based on the capability information), to the UE 115-b, second control information that indicates whether interference from the one or more neighbor network entities is consistent orinconsistent. Tn some examples, the second control information may indicate that the interference from the one or more neighbor network entities 105 is inconsistent based on the first control information indicating that interference from at least one of the one or more neighbor network entities 105 is inconsistent. Alternatively, the second control information may indicate that the interference from the one or more neighbor network entities 105 is consistent based on the first control information indicating that interference from all of the one or more neighbor network entities 105 is consistent.

[0109] At 425, the UE 115-b may determine whether to perform per-symbol noise estimation or per-slot noise estimation based on the control information. In some cases, the UE 115-b may perform per-slot noise estimation based on the interference from the one or more neighbor network entities 105 being consistent (e.g., as indicated via the first control information). In some other cases, the UE 115-b may perform per-symbol noise estimation based on the interference from the one or more neighbor network entities 105 being inconsistent (e.g.. as indicated via the first control information).

[0110] In some cases, at 430, the network entity 105-c may receive, from the one or more neighbor network entities 105, updated first control information that indicates whether the interference from each of the one or more neighbor network entities 105 is consistent or inconsistent. In such cases, receipt of the updated first control information may be based on a change in interference consistency of the one or more neighbor network entities 105.[OHl] In some cases, at 435, the network entity 105-c may transmit, to the UE 115-b, updated second control information that indicates whether the interference from the one or more neighbor network entities 105 is consistent or inconsistent. In such cases, transmission of the updated second control information may be based on the change in interference consistency of the one or more neighbor network entities 105.

[0112] In some cases, at 440, the UE 115-b may switch between performance of the per-symbol noise estimation and the per-slot noise estimation based on the updated second control information.

[0113] In some cases, at 445, the network entity 105-c may transmit, to the one or more neighbor network entities 105, an indication of a termination of communicationswith the UE 115-b, wherein the indication triggers a reduction in frequency (e.g., or termination) of transmission of the first control information.

[0114] FIG. 5 shows a block diagram 500 of a device 505 that supports techniques for performing noise covariance estimation on a per symbol basis in the presence of inconsistent interference levels in accordance with one or more aspects of the present disclosure. The device 505 may be an example of aspects of a UE 115 as described herein. The device 505 may include a receiver 510, a transmitter 515, and a communications manager 520. The device 505, or one or more components of the device 505 (e.g., the receiver 510, the transmitter 515. and the communications manager 520), may include at least one processor, which may be coupled with at least one memory, to, individually or collectively, support or enable the described techniques. Each of these components may be in communication with one another (e.g., via one or more buses).

[0115] The receiver 510 may provide a means for receiving information such as packets, user data, control information, or any combination thereof associated with various information channels (e.g., control channels, data channels, information channels related to techniques for performing noise covariance estimation on a per symbol basis in the presence of inconsistent interference levels). Information may be passed on to other components of the device 505. The receiver 510 may utilize a single antenna or a set of multiple antennas.

[0116] The transmitter 515 may provide a means for transmitting signals generated by other components of the device 505. For example, the transmitter 515 may transmit information such as packets, user data, control information, or any combination thereof associated with various information channels (e.g., control channels, data channels, information channels related to techniques for performing noise covariance estimation on a per symbol basis in the presence of inconsistent interference levels). In some examples, the transmitter 515 may be co-located with a receiver 510 in a transceiver module. The transmitter 515 may utilize a single antenna or a set of multiple antennas.

[0117] The communications manager 520, the receiver 510, the transmitter 515, or various combinations thereof or various components thereof may be examples of means for performing various aspects of techniques for performing noise covariance estimationon a per symbol basis in the presence of inconsistent interference levels as described herein. For example, the communications manager 520, the receiver 510, the transmitter 515, or various combinations or components thereof may be capable of performing one or more of the functions described herein.

[0118] In some examples, the communications manager 520, the receiver 510, the transmitter 515, or various combinations or components thereof may be implemented in hardware (e.g., in communications management circuitry). The hardware may include at least one of a processor, a digital signal processor (DSP), a central processing unit (CPU), an application-specific integrated circuit (ASIC), a field-programmable gate array (FPGA) or other programmable logic device, a microcontroller, discrete gate or transistor logic, discrete hardware components, or any combination thereof configured as or otherwise supporting, individually or collectively, a means for performing the functions described in the present disclosure. In some examples, at least one processor and at least one memory coupled with the at least one processor may be configured to perform one or more of the functions described herein (e g., by one or more processors, individually or collectively, executing instructions stored in the at least one memory').

[0119] Additionally, or alternatively, the communications manager 520, the receiver 510, the transmitter 515, or various combinations or components thereof may be implemented in code (e.g.. as communications management software or firmware) executed by at least one processor. If implemented in code executed by at least one processor, the functions of the communications manager 520, the receiver 510, the transmitter 515, or various combinations or components thereof may 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 (e.g., configured as or otherwise supporting, individually or collectively, a means for performing the functions described in the present disclosure).

[0120] In some examples, the communications manager 520 may be configured to perform various operations (e.g.. receiving, obtaining, monitoring, outputting, transmitting) using or otherwise in cooperation with the receiver 510, the transmitter 515, or both. For example, the communications manager 520 may receive information from the receiver 510, send information to the transmitter 515, or be integrated incombination with the receiver 510, the transmitter 515, or both to obtain information, output information, or perform various other operations as described herein.

[0121] The communications manager 520 may support wireless communications in accordance with examples as disclosed herein. For example, the communications manager 520 is capable of. configured to, or operable to support a means for transmitting capability information of the first network entity, where the capability information indicates a capability of the first network entity to generate a noise matrix on a per-symbol basis. The communications manager 520 is capable of, configured to, or operable to support a means for receiving, from a serving network entity and based on the capability information, control information that indicates whether interference from one or more neighbor network entities is consistent or inconsistent, where consistent interference occupies a same bandwidth during all symbols of a slot, and where inconsistent interference occupies different bandwidths in different symbols of the slot. The communications manager 520 is capable of. configured to, or operable to support a means for determining whether to perform per-symbol noise estimation or per-slot noise estimation based on the control information.

[0122] By including or configuring the communications manager 520 in accordance with examples as described herein, the device 505 (e.g., at least one processor controlling or otherwise coupled with the receiver 510, the transmitter 515. the communications manager 520, or a combination thereof) may support techniques for determining whether to perform per-symbol or per-slot noise estimation which may result in reduced processing, reduced power consumption, and more efficient utilization of communication resources, among other advantages.

[0123] FIG. 6 shows a block diagram 600 of a device 605 that supports techniques for performing noise covariance estimation on a per symbol basis in the presence of inconsistent interference levels in accordance with one or more aspects of the present disclosure. The device 605 may be an example of aspects of a device 505 or a UE 115 as described herein. The device 605 may include a receiver 610, a transmitter 615. and a communications manager 620. The device 605, or one or more components of the device 605 (e.g., the receiver 610, the transmitter 615, and the communications manager 620), may include at least one processor, which may be coupled with at least onememory, to support the described techniques. Each of these components may be in communication with one another (e.g., via one or more buses).

[0124] The receiver 610 may provide a means for receiving information such as packets, user data, control information, or any combination thereof associated with various information channels (e.g., control channels, data channels, information channels related to techniques for performing noise covariance estimation on a per symbol basis in the presence of inconsistent interference levels). Information may be passed on to other components of the device 605. The receiver 610 may utilize a single antenna or a set of multiple antennas.

[0125] The transmitter 615 may provide a means for transmitting signals generated by other components of the device 605. For example, the transmitter 615 may transmit information such as packets, user data, control information, or any combination thereof associated with various information channels (e.g., control channels, data channels, information channels related to techniques for performing noise covariance estimation on a per symbol basis in the presence of inconsistent interference levels). In some examples, the transmitter 615 may be co-located with a receiver 610 in a transceiver module. The transmitter 615 may utilize a single antenna or a set of multiple antennas.

[0126] The device 605, or various components thereof, may be an example of means for performing various aspects of techniques for performing noise covariance estimation on a per symbol basis in the presence of inconsistent interference levels as described herein. For example, the communications manager 620 may include a capability component 625, an interference component 630, an estimation component 635, or any combination thereof. The communications manager 620 may be an example of aspects of a communications manager 520 as described herein. In some examples, the communications manager 620, or various components thereof, may be configured to perform various operations (e.g., receiving, obtaining, monitoring, outputting, transmitting) using or otherwise in cooperation with the receiver 610, the transmitter 615, or both. For example, the communications manager 620 may receive information from the receiver 610, send information to the transmitter 615, or be integrated in combination with the receiver 610, the transmitter 615, or both to obtain information, output information, or perform various other operations as described herein.

[0127] The communications manager 620 may support wireless communications in accordance with examples as disclosed herein. The capability component 625 is capable of, configured to, or operable to support a means for transmitting capability information of the first network entity, where the capability information indicates a capability of the first network entity to generate a noise matrix on a per-symbol basis. The interference component 630 is capable of, configured to, or operable to support a means for receiving, from a serving network entity and based on the capability information, control information that indicates whether interference from one or more neighbor network entities is consistent or inconsistent, where consistent interference occupies a same bandwidth during all symbols of a slot, and where inconsistent interference occupies different bandwidths in different symbols of the slot. The estimation component 635 is capable of. configured to, or operable to support a means for determining whether to perform per-symbol noise estimation or per-slot noise estimation based on the control information.

[0128] FIG. 7 shows a block diagram 700 of a communications manager 720 that supports techniques for performing noise covariance estimation on a per symbol basis in the presence of inconsistent interference levels in accordance with one or more aspects of the present disclosure. The communications manager 720 may be an example of aspects of a communications manager 520, a communications manager 620, or both, as described herein. The communications manager 720, or various components thereof, may be an example of means for performing various aspects of techniques for performing noise covariance estimation on a per symbol basis in the presence of inconsistent interference levels as described herein. For example, the communications manager 720 may include a capability component 725, an interference component 730, an estimation component 735, or any combination thereof. Each of these components, or components or subcomponents thereof (e g., one or more processors, one or more memories), may communicate, directly or indirectly, with one another (e.g., via one or more buses).

[0129] The communications manager 720 may support wireless communications in accordance with examples as disclosed herein. The capability' component 725 is capable of, configured to, or operable to support a means for transmitting capability information of the first network entity, where the capability information indicates acapability of the first network entity to generate a noise matrix on a per-symbol basis. The interference component 730 is capable of, configured to, or operable to support a means for receiving, from a serving network entity and based on the capability information, control information that indicates whether interference from one or more neighbor network entities is consistent or inconsistent, where consistent interference occupies a same bandwidth during all symbols of a slot, and where inconsistent interference occupies different bandwidths in different symbols of the slot. The estimation component 735 is capable of. configured to, or operable to support a means for determining whether to perform per-symbol noise estimation or per-slot noise estimation based on the control information.

[0130] In some examples, the control information indicates that the interference from the one or more neighbor network entities is consistent, and the estimation component 735 is capable of, configured to, or operable to support a means for performing per-slot noise estimation based on the interference from the one or more neighbor network entities being consistent.

[0131] In some examples, the control information indicates that the interference from the one or more neighbor network entities is inconsistent, and the estimation component 735 is capable of, configured to, or operable to support a means for performing per-symbol noise estimation based on the interference from the one or more neighbor network entities being inconsistent.

[0132] In some examples, the interference component 730 is capable of, configured to, or operable to support a means for receive, from the serving network entity, updated control information that indicates whether the interference from the one or more neighbor network entities is consistent or inconsistent, where receipt of the updated control information is based on a change in interference consistency of the one or more neighbor network entities.

[0133] In some examples, the capability information is transmitted via a medium access control (MAC)-control element (CE) that is associated with cell attachment to the serving network entity.

[0134] In some examples, the capability information is transmitted based on initiation of communications with the serving network entity.

[0135] In some examples, the estimation component 735 is capable of, configured to, or operable to support a means for switching between performance of the per-symbol noise estimation and the per-slot noise estimation based on the control information.

[0136] FIG. 8 shows a diagram of a system 800 including a device 805 that supports techniques for performing noise covariance estimation on a per symbol basis in the presence of inconsistent interference levels in accordance with one or more aspects of the present disclosure. The device 805 may be an example of or include the components of a device 505, a device 605, or a UE 115 as described herein. The device 805 may communicate (e.g., wirelessly) with one or more network entities 105, one or more UEs 115, or any combination thereof. The device 805 may include components for bi-directional voice and data communications including components for transmitting and receiving communications, such as a communications manager 820, an input / output (I / O) controller 810, a transceiver 815, an antenna 825, at least one memory’ 830, code 835, and at least one processor 840. These components may be in electronic communication or otherwise coupled (e.g., operatively, communicatively, functionally, electronically, electrically) via one or more buses (e.g., a bus 845).

[0137] The I / O controller 810 may manage input and output signals for the device 805. The I / O controller 810 may also manage peripherals not integrated into the device 805. In some cases, the I / O controller 810 may represent a physical connection or port to an external peripheral. In some cases, the I / O controller 810 may utilize an operating system such as iOS®, ANDROID®, MS-DOS®, MS-WINDOWS®, OS / 2®, UNIX®, LINUX®, or another operating system. Additionally, or alternatively, the I / O controller 810 may represent or interact with a modem, a keyboard, a mouse, a touchscreen, or a similar device. In some cases, the I / O controller 810 may be implemented as part of one or more processors, such as the at least one processor 840. In some cases, a user may interact with the device 805 via the I / O controller 810 or via hardware components controlled by the I / O controller 810.

[0138] In some cases, the device 805 may include a single antenna 825. However, in some other cases, the device 805 may have more than one antenna 825, which may be capable of concurrently transmitting or receiving multiple wireless transmissions. The transceiver 815 may communicate bi-directionally, via the one or more antennas 825, wired, or wireless links as described herein. For example, the transceiver 815 mayrepresent a wireless transceiver and may communicate bi-directionally with another wireless transceiver. The transceiver 815 may also include a modem to modulate the packets, to provide the modulated packets to one or more antennas 825 for transmission, and to demodulate packets received from the one or more antennas 825. The transceiver 815, or the transceiver 815 and one or more antennas 825, may be an example of a transmitter 515, a transmitter 615, a receiver 510, a receiver 610, or any combination thereof or component thereof, as described herein.

[0139] The at least one memory 830 may include random access memory (RAM) and read-only memory (ROM). The at least one memory 830 may store computer- readable, computer-executable code 835 including instructions that, when executed by the at least one processor 840, cause the device 805 to perform various functions described herein. The code 835 may be stored in a non-transitory computer-readable medium such as system memory or another type of memory. In some cases, the code 835 may not be directly executable by the at least one processor 840 but may cause a computer (e g., when compiled and executed) to perform functions described herein. In some cases, the at least one memory7830 may contain, among other things, a basic I / O system (BIOS) which may control basic hardware or software operation such as the interaction with peripheral components or devices.

[0140] The at least one processor 840 may include an intelligent hardware device (e.g., a general-purpose processor, a DSP, a CPU, a microcontroller, an ASIC, an FPGA, a programmable logic device, a discrete gate or transistor logic component, a discrete hardware component, or any combination thereof). In some cases, the at least one processor 840 may be configured to operate a memory array using a memory controller. In some other cases, a memory' controller may be integrated into the at least one processor 840. The at least one processor 840 may be configured to execute computer-readable instructions stored in a memory7(e g., the at least one memory 830) to cause the device 805 to perform various functions (e.g., functions or tasks supporting techniques for performing noise covariance estimation on a per symbol basis in the presence of inconsistent interference levels). For example, the device 805 or a component of the device 805 may include at least one processor 840 and at least one memory7830 coupled with or to the at least one processor 840, the at least one processor 840 and at least one memory 830 configured to perform various functions describedherein. Tn some examples, the at least one processor 840 may include multiple processors and the at least one memory 830 may include multiple memories. One or more of the multiple processors may be coupled with one or more of the multiple memories, which may. individually or collectively, be configured to perform various functions herein. In some examples, the at least one processor 840 may be a component of a processing system, which may refer to a system (such as a series) of machines, circuitry (including, for example, one or both of processor circuitry (which may include the at least one processor 840) and memory circuitry’ (which may include the at least one memory 830)). or components, that receives or obtains inputs and processes the inputs to produce, generate, or obtain a set of outputs. The processing system may be configured to perform one or more of the functions described herein. For example, the at least one processor 840 or a processing system including the at least one processor 840 may be configured to, configurable to, or operable to cause the device 805 to perform one or more of the functions described herein. Further, as described herein, being “configured to,” being “configurable to,” and being “operable to” may be used interchangeably and may be associated with a capability', when executing code stored in the at least one memory 830 or otherwise, to perform one or more of the functions described herein.

[0141] The communications manager 820 may support wireless communications in accordance with examples as disclosed herein. For example, the communications manager 820 is capable of, configured to, or operable to support a means for transmitting capability information of the first network entity, where the capability information indicates a capability of the first network entity to generate a noise matrix on a per-symbol basis. The communications manager 820 is capable of, configured to, or operable to support a means for receiving, from a serving network entity' and based on the capability information, control information that indicates whether interference from one or more neighbor network entities is consistent or inconsistent, where consistent interference occupies a same bandwidth during all symbols of a slot, and where inconsistent interference occupies different bandwidths in different symbols of the slot. The communications manager 820 is capable of, configured to, or operable to support a means for determining whether to perform per-symbol noise estimation or per-slot noise estimation based on the control information.

[0142] By including or configuring the communications manager 820 in accordance with examples as described herein, the device 805 may support techniques for determining whether to perform per-symbol or per-slot noise estimation which may result in improved communication reliability , reduced latency, improved user experience related to reduced processing, reduced power consumption, more efficient utilization of communication resources, improved coordination between devices, longer battery life, and improved utilization of processing capability, among other advantages.

[0143] In some examples, the communications manager 820 may be configured to perform various operations (e.g.. receiving, monitoring, transmitting) using or otherwise in cooperation with the transceiver 815, the one or more antennas 825, or any combination thereof. Although the communications manager 820 is illustrated as a separate component, in some examples, one or more functions described with reference to the communications manager 820 may be supported by or performed by the at least one processor 840. the at least one memory 830. the code 835, or any combination thereof. For example, the code 835 may include instructions executable by the at least one processor 840 to cause the device 805 to perform various aspects of techniques for performing noise covariance estimation on a per symbol basis in the presence of inconsistent interference levels as described herein, or the at least one processor 840 and the at least one memory 830 may be otherwise configured to, individually or collectively, perform or support such operations.

[0144] FIG. 9 shows a block diagram 900 of a device 905 that supports techniques for performing noise covariance estimation on a per symbol basis in the presence of inconsistent interference levels in accordance with one or more aspects of the present disclosure. The device 905 may be an example of aspects of a network entity 105 as described herein. The device 905 may include a receiver 910, a transmitter 915, and a communications manager 920. The device 905, or one or more components of the device 905 (e.g., the receiver 910, the transmitter 915. and the communications manager 920), may include at least one processor, which may be coupled with at least one memory, to, individually or collectively, support or enable the described techniques. Each of these components may be in communication with one another (e.g., via one or more buses).

[0145] The receiver 910 may provide a means for obtaining (e g., receiving, determining, identifying) information such as user data, control information, or any combination thereof (e g., I / Q samples, symbols, packets, protocol data units, service data units) associated with various channels (e.g., control channels, data channels, information channels, channels associated with a protocol stack). Information may be passed on to other components of the device 905. In some examples, the receiver 910 may support obtaining information by receiving signals via one or more antennas. Additionally, or alternatively, the receiver 910 may support obtaining information by receiving signals via one or more wired (e.g., electrical, fiber optic) interfaces, wireless interfaces, or any combination thereof.

[0146] The transmitter 915 may provide a means for outputting (e.g., transmitting, providing, conveying, sending) information generated by other components of the device 905. For example, the transmitter 915 may output information such as user data, control information, or any combination thereof (e.g.. I / Q samples, symbols, packets, protocol data units, service data units) associated with various channels (e g., control channels, data channels, information channels, channels associated with a protocol stack). In some examples, the transmitter 915 may support outputting information by transmitting signals via one or more antennas. Additionally, or alternatively, the transmitter 915 may support outputting information by transmitting signals via one or more wired (e.g., electrical, fiber optic) interfaces, wireless interfaces, or any combination thereof. In some examples, the transmitter 915 and the receiver 910 may be co-located in a transceiver, which may include or be coupled with a modem.

[0147] The communications manager 920, the receiver 910, the transmitter 915, or various combinations thereof or various components thereof may be examples of means for performing various aspects of techniques for performing noise covariance estimation on a per symbol basis in the presence of inconsistent interference levels as described herein. For example, the communications manager 920, the receiver 910, the transmitter 915, or various combinations or components thereof may be capable of performing one or more of the functions described herein.

[0148] In some examples, the communications manager 920, the receiver 910, the transmitter 915, or various combinations or components thereof may be implemented in hardware (e.g., in communications management circuitry). The hardware may includeat least one of a processor, a DSP, a CPU, an ASIC, an FPGA or other programmable logic device, a microcontroller, discrete gate or transistor logic, discrete hardware components, or any combination thereof configured as or otherwise supporting, individually or collectively, a means for performing the functions described in the present disclosure. In some examples, at least one processor and at least one memory coupled with the at least one processor may be configured to perform one or more of the functions described herein (e.g., by one or more processors, individually or collectively, executing instructions stored in the at least one memory).

[0149] Additionally, or alternatively, the communications manager 920, the receiver 910, the transmitter 915, or various combinations or components thereof may be implemented in code (e.g., as communications management software or firmware) executed by at least one processor. If implemented in code executed by at least one processor, the functions of the communications manager 920, the receiver 910, the transmitter 915, or various combinations or components thereof may 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 (e.g., configured as or otherwise supporting, individually or collectively, a means for performing the functions described in the present disclosure).

[0150] In some examples, the communications manager 920 may be configured to perform various operations (e.g., receiving, obtaining, monitoring, outputting, transmitting) using or otherwise in cooperation with the receiver 910, the transmitter 915, or both. For example, the communications manager 920 may receive information from the receiver 910, send information to the transmitter 915, or be integrated in combination with the receiver 910, the transmitter 915, or both to obtain information, output information, or perform various other operations as described herein.

[0151] The communications manager 920 may support wireless communications in accordance with examples as disclosed herein. For example, the communications manager 920 is capable of. configured to, or operable to support a means for receiving capability information of a first network entity, the capability information indicative of a capability of the first network entity to generate a noise matrix on a per-symbol basis. The communications manager 920 is capable of, configured to, or operable to support a means for receiving, from one or more neighbor network entities, first controlinformation that indicates whether interference from each of the one or more neighbor network entities is consistent or inconsistent, where consistent interference occupies a same bandwidth during all symbols of a slot, and where inconsistent interference occupies different bandwidths in different symbols of the slot. The communications manager 920 is capable of, configured to, or operable to support a means for transmitting, to the first network entity and responsive to the capability information, second control information that indicates whether interference from the one or more neighbor network entities is consistent or inconsistent.

[0152] By including or configuring the communications manager 920 in accordance with examples as described herein, the device 905 (e.g., at least one processor controlling or otherwise coupled with the receiver 910, the transmitter 915, the communications manager 920, or a combination thereof) may support techniques for determining whether to perform per-symbol or per-slot noise estimation which may result in reduced processing, reduced power consumption, and more efficient utilization of communication resources, among other advantages.

[0153] FIG. 10 shows a block diagram 1000 of a device 1005 that supports techniques for performing noise covariance estimation on a per symbol basis in the presence of inconsistent interference levels in accordance with one or more aspects of the present disclosure. The device 1005 may be an example of aspects of a device 905 or a network entity 105 as described herein. The device 1005 may include a receiver 1010, a transmitter 1015, and a communications manager 1020. The device 1005, or one or more components of the device 1005 (e.g., the receiver 1010, the transmitter 1015. and the communications manager 1020), may include at least one processor, which may be coupled with at least one memon, to support the described techniques. Each of these components may be in communication with one another (e.g., via one or more buses).

[0154] The receiver 1010 may provide a means for obtaining (e.g., receiving, determining, identifying) information such as user data, control information, or any combination thereof (e.g., I / Q samples, symbols, packets, protocol data units, service data units) associated with various channels (e.g., control channels, data channels, information channels, channels associated with a protocol stack). Information may be passed on to other components of the device 1005. In some examples, the receiver 1010may support obtaining information by receiving signals via one or more antennas. Additionally, or alternatively, the receiver 1010 may support obtaining information by receiving signals via one or more wired (e.g., electrical, fiber optic) interfaces, wireless interfaces, or any combination thereof.

[0155] The transmitter 1015 may provide a means for outputting (e.g., transmitting, providing, conveying, sending) information generated by other components of the device 1005. For example, the transmitter 1015 may output information such as user data, control information, or any combination thereof (e.g., I / Q samples, symbols, packets, protocol data units, service data units) associated with various channels (e.g., control channels, data channels, information channels, channels associated with a protocol stack). In some examples, the transmitter 1015 may support outputting information by transmitting signals via one or more antennas. Additionally, or alternatively, the transmitter 1015 may support outputting information by transmitting signals via one or more wired (e.g., electrical, fiber optic) interfaces, wireless interfaces, or any combination thereof. In some examples, the transmitter 1015 and the receiver 1010 may be co-located in a transceiver, which may include or be coupled with a modem.

[0156] The device 1005, or various components thereof, may be an example of means for performing various aspects of techniques for performing noise covariance estimation on a per symbol basis in the presence of inconsistent interference levels as described herein. For example, the communications manager 1020 may include a reporting component 1025 an interference component 1030, or any combination thereof. The communications manager 1020 may be an example of aspects of a communications manager 920 as described herein. In some examples, the communications manager 1020, or various components thereof, may be configured to perform various operations (e.g., receiving, obtaining, monitoring, outputting, transmitting) using or otherwise in cooperation with the receiver 1010, the transmitter 1015, or both. For example, the communications manager 1020 may receive information from the receiver 1010, send information to the transmitter 1015, or be integrated in combination with the receiver 1010, the transmitter 1015, or both to obtain information, output information, or perform various other operations as described herein.

[0157] The communications manager 1020 may support wireless communications in accordance with examples as disclosed herein. The reporting component 1025 is capable of, configured to, or operable to support a means for receiving capability information of a first network entity, the capability information indicative of a capability of the first network entity to generate a noise matrix on a per-symbol basis. The interference component 1030 is capable of, configured to, or operable to support a means for receiving, from one or more neighbor network entities, first control information that indicates whether interference from each of the one or more neighbor network entities is consistent or inconsistent, where consistent interference occupies a same bandwidth during all symbols of a slot, and where inconsistent interference occupies different bandwidths in different symbols of the slot. The interference component 1030 is capable of, configured to, or operable to support a means for transmitting, to the first network entity and responsive to the capability information, second control information that indicates whether interference from the one or more neighbor network entities is consistent or inconsistent.

[0158] FIG. 11 shows a block diagram 1100 of a communications manager 1120 that supports techniques for performing noise covariance estimation on a per symbol basis in the presence of inconsistent interference levels in accordance with one or more aspects of the present disclosure. The communications manager 1120 may be an example of aspects of a communications manager 920, a communications manager 1020, or both, as described herein. The communications manager 1120, or various components thereof, may be an example of means for performing various aspects of techniques for performing noise covariance estimation on a per symbol basis in the presence of inconsistent interference levels as described herein. For example, the communications manager 1120 may include a reporting component 1125, an interference component 1130, a request component 1135, a termination component 1140. or any combination thereof. Each of these components, or components or subcomponents thereof (e.g., one or more processors, one or more memories), may communicate, directly or indirectly, with one another (e.g., via one or more buses) which may include communications within a protocol layer of a protocol stack, communications associated with a logical channel of a protocol stack (e.g., between protocol layers of a protocol stack, within a device, component, or virtualizedcomponent associated with a network entity 105, between devices, components, or virtualized components associated with a network entity 105), or any combination thereof.

[0159] The communications manager 1120 may support wireless communications in accordance with examples as disclosed herein. The reporting component 1125 is capable of, configured to, or operable to support a means for receiving capability information of a first network entity, the capability information indicative of a capability of the first network entity to generate a noise matrix on a per-symbol basis. The interference component 1130 is capable of, configured to, or operable to support a means for receiving, from one or more neighbor network entities, first control information that indicates whether interference from each of the one or more neighbor network entities is consistent or inconsistent, where consistent interference occupies a same bandwidth during all symbols of a slot, and where inconsistent interference occupies different bandwidths in different symbols of the slot. In some examples, the interference component 1130 is capable of, configured to, or operable to support a means for transmitting, to the first network entity and responsive to the capability information, second control information that indicates whether interference from the one or more neighbor network entities is consistent or inconsistent.

[0160] In some examples, the second control information indicates that the interference from the one or more neighbor network entities is consistent based on the first control information indicating that interference from all of the one or more neighbor network entities is consistent.

[0161] In some examples, the second control information indicates that the interference from the one or more neighbor network entities is inconsistent based on the first control information indicating that interference from at least one of the one or more neighbor network entities is inconsistent.

[0162] In some examples, the request component 1135 is capable of, configured to, or operable to support a means for transmitting, to each of the one or more neighbor network entities, a request for the one or more neighbor network entities to transmit the first control information.

[0163] In some examples, the request is transmitted based on reception of the capability information.

[0164] In some examples, the request is transmitted periodically.

[0165] In some examples, the request is transmitted via one or more backhaul communication links between the serving network entity and the one or more neighbor network entities.

[0166] In some examples, the termination component 1140 is capable of, configured to, or operable to support a means for transmitting, to the one or more neighbor network entities, an indication of a termination of communications with the first network entity, where the indication triggers a reduction in frequency of transmission of the first control information.

[0167] In some examples, the interference component 1130 is capable of, configured to, or operable to support a means for receiving, from the one or more neighbor network entities, updated first control information that indicates whether the interference from each of the one or more neighbor network entities is consistent or inconsistent, where receipt of the updated first control information is based on a change in interference consistency of the one or more neighbor network entities.

[0168] In some examples, the first control information indicates whether interference from each of the one or more neighbor network entities is consistent or inconsistent for each slot of a set of multiple slots.

[0169] In some examples, each slot of the set of multiple slots is associated with a frequency domain consistency mode of a set of multiple frequency domain consistency modes. In some examples, the set of multiple frequency domain consistency modes includes a first frequency domain consistency mode associated with consistent inference and a second frequency domain consistent mode associated with inconsistent interference.

[0170] In some examples, the first control information is received via one or more backhaul communication links between the serving network entity and the one or more neighbor network entities.

[0171] FIG. 12 shows a diagram of a system 1200 including a device 1205 that supports techniques for performing noise covariance estimation on a per symbol basis in the presence of inconsistent interference levels in accordance with one or more aspects of the present disclosure. The device 1205 may be an example of or include the components of a device 905, a device 1005, or a network entity 105 as described herein. The device 1205 may communicate with one or more network entities 105, one or more UEs 115, or any combination thereof, which may include communications over one or more wired interfaces, over one or more wireless interfaces, or any combination thereof. The device 1205 may include components that support outputting and obtaining communications, such as a communications manager 1220, a transceiver 1210, an antenna 1215, at least one memon 1225, code 1230, and at least one processor 1235. These components may be in electronic communication or otherwise coupled (e.g.. operatively, communicatively, functionally, electronically, electrically) via one or more buses (e.g., a bus 1240).

[0172] The transceiver 1210 may support bi-directional communications via wired links, wireless links, or both as described herein. In some examples, the transceiver 1210 may include a wired transceiver and may communicate bi-directionally with another wired transceiver. Additionally, or alternatively, in some examples, the transceiver 1210 may include a wireless transceiver and may communicate bidirectionally with another wireless transceiver. In some examples, the device 1205 may include one or more antennas 1215, which may be capable of transmitting or receiving wireless transmissions (e.g., concurrently). The transceiver 1210 may also include a modem to modulate signals, to provide the modulated signals for transmission (e.g., by one or more antennas 1215, by a wired transmitter), to receive modulated signals (e.g., from one or more antennas 1215, from a wired receiver), and to demodulate signals. In some implementations, the transceiver 1210 may include one or more interfaces, such as one or more interfaces coupled with the one or more antennas 1215 that are configured to support various receiving or obtaining operations, or one or more interfaces coupled with the one or more antennas 1215 that are configured to support various transmitting or outputting operations, or a combination thereof. In some implementations, the transceiver 1210 may include or be configured for coupling with one or more processors or one or more memory components that are operable to perform or support operationsbased on received or obtained information or signals, or to generate information or other signals for transmission or other outputting, or any combination thereof. In some implementations, the transceiver 1210, or the transceiver 1210 and the one or more antennas 1215, or the transceiver 1210 and the one or more antennas 1215 and one or more processors or one or more memory components (e.g., the at least one processor 1235, the at least one memory 1225, or both), may be included in a chip or chip assembly that is installed in the device 1205. In some examples, the transceiver 1210 may be operable to support communications via one or more communications links (e.g.. a communication link 125. a backhaul communication link 120. a midhaul communication link 162, a fronthaul communication link 168).

[0173] The at least one memory 1225 may include RAM, ROM, or any combination thereof. The at least one memoiy 1225 may store computer-readable, computerexecutable code 1230 including instructions that, when executed by one or more of the at least one processor 1235, cause the device 1205 to perform various functions described herein. The code 1230 may be stored in a non-transitory computer-readable medium such as system memoiy' or another type of memory'. In some cases, the code 1230 may not be directly executable by a processor of the at least one processor 1235 but may cause a computer (e.g., when compiled and executed) to perform functions described herein. In some cases, the at least one memory 1225 may contain, among other things, a BIOS which may control basic hardware or software operation such as the interaction with peripheral components or devices. In some examples, the at least one processor 1235 may include multiple processors and the at least one memory 1225 may include multiple memories. One or more of the multiple processors may be coupled with one or more of the multiple memories which may, individually or collectively, be configured to perform various functions herein (for example, as part of a processing system).

[0174] The at least one processor 1235 may include an intelligent hardware device (e.g., a general-purpose processor, a DSP, an ASIC, a CPU, an FPGA, a microcontroller, a programmable logic device, discrete gate or transistor logic, a discrete hardware component, or any combination thereof). In some cases, the at least one processor 1235 may be configured to operate a memory array using a memory controller. In some other cases, a memory controller may be integrated into one ormore of the at least one processor 1235. The at least one processor 1235 may be configured to execute computer-readable instructions stored in a memory' (e.g., one or more of the at least one memory 1225) to cause the device 1205 to perform various functions (e.g., functions or tasks supporting techniques for performing noise covariance estimation on a per symbol basis in the presence of inconsistent interference levels). For example, the device 1205 or a component of the device 1205 may include at least one processor 1235 and at least one memory 1225 coupled with one or more of the at least one processor 1235, the at least one processor 1235 and the at least one memory 1225 configured to perform various functions described herein. The at least one processor 1235 may be an example of a cloud-computing platform (e.g., one or more physical nodes and supporting software such as operating systems, virtual machines, or container instances) that may host the functions (e.g., by executing code 1230) to perform the functions of the device 1205. The at least one processor 1235 may be any one or more suitable processors capable of executing scripts or instructions of one or more software programs stored in the device 1205 (such as within one or more of the at least one memory' 1225). In some examples, the at least one processor 1235 may include multiple processors and the at least one memory’ 1225 may include multiple memories. One or more of the multiple processors may be coupled with one or more of the multiple memories, which may, individually’ or collectively, be configured to perform various functions herein. In some examples, the at least one processor 1235 may be a component of a processing system, which may refer to a system (such as a series) of machines, circuitry (including, for example, one or both of processor circuitry (which may include the at least one processor 1235) and memory circuitry (which may include the at least one memory’ 1225)), or components, that receives or obtains inputs and processes the inputs to produce, generate, or obtain a set of outputs. The processing system may be configured to perform one or more of the functions described herein. For example, the at least one processor 1235 or a processing system including the at least one processor 1235 may be configured to, configurable to, or operable to cause the device 1205 to perform one or more of the functions described herein. Further, as described herein, being ‘"configured to." being ‘"configurable to,” and being ‘"operable to” may be used interchangeably and may be associated with a capability, when executing code stored in the at least one memory 1225 or otherwise, to perform one or more of the functions described herein.

[0175] In some examples, a bus 1240 may support communications of (e.g., within) a protocol layer of a protocol stack. In some examples, a bus 1240 may support communications associated with a logical channel of a protocol stack (e.g., between protocol layers of a protocol stack), which may include communications performed within a component of the device 1205, or between different components of the device 1205 that may be co-located or located in different locations (e.g., where the device 1205 may refer to a system in which one or more of the communications manager 1220, the transceiver 1210, the at least one memory 1225, the code 1230, and the at least one processor 1235 may be located in one of the different components or divided between different components).

[0176] In some examples, the communications manager 1220 may manage aspects of communications with a core network 130 (e.g., via one or more wired or wireless backhaul links). For example, the communications manager 1220 may manage the transfer of data communications for client devices, such as one or more UEs 115. In some examples, the communications manager 1220 may manage communications with other network entities 105, and may include a controller or scheduler for controlling communications with UEs 115 in cooperation with other network entities 105. In some examples, the communications manager 1220 may support an X2 interface within an LTE / LTE-A wireless communications network technology to provide communication between network entities 105.

[0177] The communications manager 1220 may support wireless communications in accordance with examples as disclosed herein. For example, the communications manager 1220 is capable of, configured to, or operable to support a means for receiving capability information of a first network entity, the capability information indicative of a capability of the first network entity to generate a noise matrix on a per-symbol basis. The communications manager 1220 is capable of, configured to, or operable to support a means for receiving, from one or more neighbor network entities, first control information that indicates whether interference from each of the one or more neighbor network entities is consistent or inconsistent, where consistent interference occupies a same bandwidth during all symbols of a slot, and where inconsistent interference occupies different bandwidths in different symbols of the slot. The communications manager 1220 is capable of, configured to, or operable to support a means fortransmitting, to the first network entity and responsive to the capability information, second control information that indicates whether interference from the one or more neighbor network entities is consistent or inconsistent.

[0178] By including or configuring the communications manager 1220 in accordance with examples as described herein, the device 1205 may support techniques for determining whether to perform per-symbol or per-slot noise estimation which may result in improved communication reliability, reduced latency, improved user experience related to reduced processing, reduced power consumption, more efficient utilization of communication resources, improved coordination between devices, longer battery life, and improved utilization of processing capability, among other advantages.

[0179] In some examples, the communications manager 1220 may be configured to perform various operations (e.g., receiving, obtaining, monitoring, outputting, transmitting) using or otherwise in cooperation with the transceiver 1210, the one or more antennas 1215 (e.g., where applicable), or any combination thereof. Although the communications manager 1220 is illustrated as a separate component, in some examples, one or more functions described with reference to the communications manager 1220 may be supported by or performed by the transceiver 1210, one or more of the at least one processor 1235, one or more of the at least one memory’ 1225, the code 1230. or any combination thereof (for example, by a processing system including at least a portion of the at least one processor 1235, the at least one memory 1225, the code 1230, or any combination thereol). For example, the code 1230 may include instructions executable by one or more of the at least one processor 1235 to cause the device 1205 to perform various aspects of techniques for performing noise covariance estimation on a per symbol basis in the presence of inconsistent interference levels as described herein, or the at least one processor 1235 and the at least one memory 1225 may be otherwise configured to, individually or collectively, perform or support such operations.

[0180] FIG. 13 shows a flowchart illustrating a method 1300 that supports techniques for performing noise covariance estimation on a per symbol basis in the presence of inconsistent interference levels in accordance with one or more aspects of the present disclosure. The operations of the method 1300 may be implemented by a UE or its components as described herein. For example, the operations of the method1300 may be performed by a UE 1 15 as described with reference to FIGs. 1 through 8. In some examples, a UE may execute a set of instructions to control the functional elements of the UE to perform the described functions. Additionally, or alternatively, the UE may perform aspects of the described functions using special-purpose hardware.

[0181] At 1305, the method may include transmitting capability information of the first network entity, where the capability’ information indicates a capability of the first network entity to generate a noise matrix on a per-symbol basis. The operations of block 1305 may be performed in accordance with examples as disclosed herein. In some examples, aspects of the operations of 1305 may be performed by a capability component 725 as described with reference to FIG. 7.

[0182] At 1310, the method may include receiving, from a serving network entity and based on the capability’ information, control information that indicates whether interference from one or more neighbor network entities is consistent or inconsistent, where consistent interference occupies a same bandwidth during all symbols of a slot, and where inconsistent interference occupies different bandwidths in different symbols of the slot. The operations of block 1310 may be performed in accordance with examples as disclosed herein. In some examples, aspects of the operations of 1310 may be performed by an interference component 730 as described with reference to FIG. 7.

[0183] At 1315, the method may include determining whether to perform per- symbol noise estimation or per-slot noise estimation based on the control information. The operations of block 1315 may be performed in accordance with examples as disclosed herein. In some examples, aspects of the operations of 1315 may be performed by an estimation component 735 as described with reference to FIG. 7.

[0184] FIG. 14 shows a flowchart illustrating a method 1400 that supports techniques for performing noise covariance estimation on a per symbol basis in the presence of inconsistent interference levels in accordance with one or more aspects of the present disclosure. The operations of the method 1400 may be implemented by a UE or its components as described herein. For example, the operations of the method 1400 may be performed by a UE 115 as described with reference to FIGs. 1 through 8. In some examples, a UE may execute a set of instructions to control the functionalelements of the UE to perform the described functions. Additionally, or alternatively, the UE may perform aspects of the described functions using special-purpose hardware.

[0185] At 1405, the method may include transmitting capability information of the first network entity, where the capability information indicates a capability of the first network entity to generate a noise matrix on a per-symbol basis. The operations of block 1405 may be performed in accordance with examples as disclosed herein. In some examples, aspects of the operations of 1405 may be performed by a capability component 725 as described with reference to FIG. 7.

[0186] At 1410, the method may include receiving, from a serving network entity and based on the capability information, control information that indicates whether interference from one or more neighbor network entities is consistent or inconsistent, where consistent interference occupies a same bandwidth during all symbols of a slot, and where inconsistent interference occupies different bandwidths in different symbols of the slot. The operations of block 1410 may be performed in accordance with examples as disclosed herein. In some examples, aspects of the operations of 1410 may be performed by an interference component 730 as described with reference to FIG. 7.

[0187] At 1415, the method may include determining whether to perform per- symbol noise estimation or per-slot noise estimation based on the control information. The operations of block 1415 may be performed in accordance with examples as disclosed herein. In some examples, aspects of the operations of 1415 may be performed by an estimation component 735 as described with reference to FIG. 7.

[0188] At 1420, the method may include performing per-slot noise estimation based on the interference from the one or more neighbor network entities being consistent. The operations of block 1420 may be performed in accordance with examples as disclosed herein. In some examples, aspects of the operations of 1420 may be performed by an estimation component 735 as described with reference to FIG. 7.

[0189] FIG. 15 shows a flowchart illustrating a method 1500 that supports techniques for performing noise covariance estimation on a per symbol basis in the presence of inconsistent interference levels in accordance with one or more aspects of the present disclosure. The operations of the method 1500 may be implemented by a UE or its components as described herein. For example, the operations of the method1500 may be performed by a UE 1 15 as described with reference to FIGs. 1 through 8. In some examples, a UE may execute a set of instructions to control the functional elements of the UE to perform the described functions. Additionally, or alternatively, the UE may perform aspects of the described functions using special-purpose hardware.

[0190] At 1505, the method may include transmitting capability information of the first network entity, where the capability’ information indicates a capability of the first network entity to generate a noise matrix on a per-symbol basis. The operations of block 1505 may be performed in accordance with examples as disclosed herein. In some examples, aspects of the operations of 1505 may be performed by a capability component 725 as described with reference to FIG. 7.

[0191] At 1510, the method may include receiving, from a serving network entity and based on the capability’ information, control information that indicates whether interference from one or more neighbor network entities is consistent or inconsistent, where consistent interference occupies a same bandwidth during all symbols of a slot, and where inconsistent interference occupies different bandwidths in different symbols of the slot. The operations of block 1510 may be performed in accordance with examples as disclosed herein. In some examples, aspects of the operations of 1510 may be performed by an interference component 730 as described with reference to FIG. 7.

[0192] At 1515, the method may include determining whether to perform per- symbol noise estimation or per-slot noise estimation based on the control information. The operations of block 1515 may be performed in accordance with examples as disclosed herein. In some examples, aspects of the operations of 1515 may be performed by an estimation component 735 as described with reference to FIG. 7.

[0193] At 1520, the method may include performing per-symbol noise estimation based on the interference from the one or more neighbor network entities being inconsistent. The operations of block 1520 may be performed in accordance w ith examples as disclosed herein. In some examples, aspects of the operations of 1520 may be performed by an estimation component 735 as described with reference to FIG. 7.

[0194] FIG. 16 shows a flowchart illustrating a method 1600 that supports techniques for performing noise covariance estimation on a per symbol basis in the presence of inconsistent interference levels in accordance w ith one or more aspects ofthe present disclosure. The operations of the method 1600 may be implemented by a network entity or its components as described herein. For example, the operations of the method 1600 may be performed by a network entity as described with reference to FIGs. 1 through 4 and 9 through 12. In some examples, a network entity may execute a set of instructions to control the functional elements of the network entity to perform the described functions. Additionally, or alternatively, the network entity may perform aspects of the described functions using special-purpose hardware.

[0195] At 1605, the method may include receiving capability information of a first network entity, the capability information indicative of a capability of the first network entity to generate a noise matrix on a per-symbol basis. The operations of block 1605 may be performed in accordance with examples as disclosed herein. In some examples, aspects of the operations of 1605 may be performed by a reporting component 1125 as described with reference to FIG. 11.

[0196] At 1610, the method may include receiving, from one or more neighbor network entities, first control information that indicates whether interference from each of the one or more neighbor network entities is consistent or inconsistent, where consistent interference occupies a same bandwidth during all symbols of a slot, and where inconsistent interference occupies different bandwidths in different symbols of the slot. The operations of block 1610 may be performed in accordance with examples as disclosed herein. In some examples, aspects of the operations of 1610 may be performed by an interference component 1130 as described with reference to FIG. 11.

[0197] At 1615, the method may include transmitting, to the first network entity7and responsive to the capability information, second control information that indicates whether interference from the one or more neighbor network entities is consistent or inconsistent. The operations of block 1615 may be performed in accordance with examples as disclosed herein. In some examples, aspects of the operations of 1615 may be performed by an interference component 1130 as described with reference to FIG.11.

[0198] The following provides an overview of aspects of the present disclosure:

[0199] Aspect 1 : A method for wireless communications at a first network entity comprising: transmitting capability information of the first network entity, wherein thecapability information indicates a capability of the first network entity to generate a noise matrix on a per-symbol basis receiving, from a serving network entity and based on the capability information, control information that indicates whether interference from one or more neighbor network entities is consistent or inconsistent, wherein consistent interference occupies a same bandwidth during all symbols of a slot, and wherein inconsistent interference occupies different bandwidths in different symbols of the slot; and determining whether to perform per-symbol noise estimation or per-slot noise estimation based on the control information.

[0200] Aspect 2: The method of aspect 1, wherein the control information indicates that the interference from the one or more neighbor network entities is consistent, the method further comprising: performing per-slot noise estimation based on the interference from the one or more neighbor network entities being consistent.

[0201] Aspect 3: The method of any of aspects 1 through 2, wherein the control information indicates that the interference from the one or more neighbor network entities is inconsistent, the method further comprising: performing per-symbol noise estimation based on the interference from the one or more neighbor network entities being inconsistent.

[0202] Aspect 4: The method of any of aspects 1 through 3, further comprising: receive, from the serving network entity, updated control information that indicates whether the interference from the one or more neighbor network entities is consistent or inconsistent, wherein receipt of the updated control information is based on a change in interference consistency of the one or more neighbor network entities.

[0203] Aspect 5: The method of any of aspects 1 through 4, wherein the capability information is transmitted via a MAC-CE that is associated with cell attachment to the serving network entity.

[0204] Aspect 6: The method of any of aspects 1 through 5, wherein the capability information is transmitted based on initiation of communications with the serving network entity.

[0205] Aspect 7: The method of any of aspects 1 through 6, further comprising: switching between performance of the per-symbol noise estimation and the per-slot noise estimation based on the control information.

[0206] Aspect 8: A method for wireless communications at a serving network entity, comprising: receiving capability information of a first network entity, the capability information indicative of a capability of the first network entity to generate a noise matrix on a per-symbol basis; receiving, from one or more neighbor network entities, first control information that indicates whether interference from each of the one or more neighbor network entities is consistent or inconsistent, wherein consistent interference occupies a same bandwidth during all symbols of a slot, and wherein inconsistent interference occupies different bandwidths in different symbols of the slot; and transmitting, to the first network node and responsive to the capability information, second control information that indicates whether interference from the one or more neighbor network entities is consistent or inconsistent.

[0207] Aspect 9: The method of aspect 8, wherein the second control information indicates that the interference from the one or more neighbor network entities is consistent based on the first control information indicating that interference from all of the one or more neighbor network entities is consistent.

[0208] Aspect 10: The method of any of aspects 8 through 9, wherein the second control information indicates that the interference from the one or more neighbor network entities is inconsistent based on the first control information indicating that interference from at least one of the one or more neighbor network entities is inconsistent.

[0209] Aspect 11 : The method of any of aspects 8 through 10, further comprising: transmitting, to each of the one or more neighbor network entities, a request for the one or more neighbor network entities to transmit the first control information.

[0210] Aspect 12: The method of aspect 11, wherein the request is transmitted based on reception of the capability' information.

[0211] Aspect 13: The method of any of aspects 11 through 12, wherein the request is transmitted periodically.

[0212] Aspect 14: The method of any of aspects 1 1 through 13, wherein the request is transmitted via one or more backhaul communication links between the serving network entity and the one or more neighbor network entities.

[0213] Aspect 15: The method of any of aspects 8 through 14, further comprising: transmitting, to the one or more neighbor network entities, an indication of a termination of communications with the first network entity, wherein the indication triggers a reduction in frequency of transmission of the first control information.

[0214] Aspect 16: The method of any of aspects 8 through 15, further comprising: receiving, from the one or more neighbor network entities, updated first control information that indicates whether the interference from each of the one or more neighbor network entities is consistent or inconsistent, wherein receipt of the updated first control information is based on a change in interference consistency of the one or more neighbor network entities.

[0215] Aspect 17: The method of any of aspects 8 through 16, wherein the first control information indicates whether interference from each of the one or more neighbor network entities is consistent or inconsistent for each slot of a plurality of slots.

[0216] Aspect 18: The method of aspect 17, wherein each slot of the plurality of slots is associated with a frequency domain consistency mode of a plurality of frequency domain consistency modes, the plurality of frequency domain consistency modes includes a first frequency domain consistency mode associated with consistent inference and a second frequency domain consistent mode associated with inconsistent interference.

[0217] Aspect 19: The method of any of aspects 8 through 18, wherein the first control information is received via one or more backhaul communication links between the serving network entity and the one or more neighbor network entities.

[0218] Aspect 20: A first network entity for wireless communications, comprising one or more memories storing processor-executable code, and one or more processors coupled with the one or more memories and individually or collectively operable toexecute the code to cause the first network entity to perform a method of any of aspects 1 through 7.

[0219] Aspect 21: A first network entity' for wireless communications, comprising at least one means for performing a method of any of aspects 1 through 7.

[0220] Aspect 22: A non-transitory computer-readable medium storing code for wireless communications, the code comprising instructions executable by one or more processors to perform a method of any of aspects 1 through 7.

[0221] Aspect 23: A serving network entity for wireless communications, comprising one or more memories storing processor-executable code, and one or more processors coupled with the one or more memories and individually or collectively operable to execute the code to cause the serving network entity' to perform a method of any7of aspects 8 through 19.

[0222] Aspect 24: A serving network entity for wireless communications, comprising at least one means for performing a method of any of aspects 8 through 19.

[0223] Aspect 25: A non-transitory' computer-readable medium storing code for wireless communications, the code comprising instructions executable by one or more processors to perform a method of any of aspects 8 through 19.

[0224] The methods described herein describe possible implementations, and the operations and the steps may be rearranged or otherwise modified and that other implementations are possible. Further, aspects from two or more of the methods may be combined.

[0225] Although aspects of an LTE. LTE-A, LTE-A Pro, or NR system may be described for purposes of example, and LTE, LTE-A, LTE-A Pro, or NR terminology may be used in much of the description, the techniques described herein are applicable beyond LTE, LTE-A, LTE-A Pro, or NR networks. For example, the described techniques may be applicable to various other wireless communications 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, as well as other systems and radio technologies not explicitly mentioned herein.

[0226] Information and signals described herein may be represented using any of a variety of different technologies and techniques. For example, data, instructions, commands, information, signals, bits, symbols, and chips that may be referenced throughout the description may be represented by voltages, currents, electromagnetic waves, magnetic fields or particles, optical fields or particles, or any combination thereof.

[0227] The various illustrative blocks and components described in connection with the disclosure herein may be implemented or performed using a general-purpose processor, a DSP, an ASIC, a CPU, an 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. A general-purpose processor may be a microprocessor but, in the alternative, the processor may be any processor, controller, microcontroller, or state machine. A processor may also be implemented as a combination of computing devices (e.g., a combination of a DSP and a microprocessor, multiple microprocessors, one or more microprocessors in conjunction with a DSP core, or any other such configuration). Any functions or operations described herein as being capable of being performed by a processor may be performed by multiple processors that, individually or collectively, are capable of performing the described functions or operations.

[0228] 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 or transmitted using one or more instructions or code of a computer-readable medium. Other examples and implementations are within the scope of the disclosure and claims. For example, due to the nature of software, functions described herein may be implemented using software executed by a processor, hardware, firmware, hardwiring, or combinations of any of these. Features implementing functions may also be physically located at various positions, including being distributed such that portions of functions are implemented at different physical locations.

[0229] Computer-readable media includes both non-transitory computer storage media and communication media including any medium that facilitates transfer of a computer program from one location to another. A non-transitory storage medium maybe any available medium that may be accessed by a general -purpose or special -purpose computer. By way of example, and not limitation, non-transitory computer-readable media may include RAM, ROM, electrically erasable programmable ROM (EEPROM), flash memory, compact disk (CD) ROM or other optical disk storage, magnetic disk storage or other magnetic storage devices, or any other non-transitory medium that may be used to carry or store desired program code means in the form of instructions or data structures and that may 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 the software is transmitted from a website, server, or other remote source using a 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. Disk and disc, as used herein, include CD, laser disc, optical disc, digital versatile disc (DVD), floppy disk and Blu-ray disc. Disks may reproduce data magnetically, and discs may reproduce data optically using lasers. Combinations of the above are also included within the scope of computer-readable media. Any functions or operations described herein as being capable of being performed by a memory may be performed by multiple memories that, individually or collectively, are capable of performing the described functions or operations.

[0230] As used herein, the term “or” is an inclusive “or” unless limiting language is used relative to the alternatives listed. For example, reference to “X being based on A or B” shall be construed as including within its scope X being based on A, X being based on B, and X being based on A and B. In this regard, reference to “X being based on A or B” refers to “at least one of A or B” or “one or more of A or B” due to “or” being inclusive. Similarly, reference to “X being based on A, B, or C” shall be construed as including within its scope X being based on A. X being based on B. X being based on C, X being based on A and B, X being based on A and C, X being based on B and C, and X being based on A, B, and C. In this regard, reference to “X being based on A, B, or C” refers to “at least one of A, B, or C” or “one or more of A, B, or C” due to “or” being inclusive. As an example of limiting language, reference to “X being based on only one of A or B” shall be construed as including within its scope Xbeing based on A as well as X being based on B, but not X being based on A and B. Also , as used herein, the phrase “based on” shall not be construed as a reference to a closed set of information, one or more conditions, one or more factors, or the like. In other words, the phrase “based on A” (where “A” may be information, a condition, a factor, or the like) shall be construed as “based at least on A” unless specifically recited differently. Also , as used herein, the phrase “a set” shall be construed as including the possibility of a set with one member. That is, the phrase “a set” shall be construed in the same manner as “one or more” or “at least one of.”

[0231] As used herein, including in the claims, the article “a” before a noun is open- ended and understood to refer to “at least one” of those nouns or “one or more” of those nouns. Thus, the terms “a,” “at least one,” “one or more,” “at least one of one or more” may be interchangeable. For example, if a claim recites “a component” that performs one or more functions, each of the individual functions may be performed by a single component or by any combination of multiple components. Thus, the term “a component” having characteristics or performing functions may refer to “at least one of one or more components” having a particular characteristic or performing a particular function. Subsequent reference to a component introduced with the article “a” using the terms “the” or “said” may refer to any or all of the one or more components. For example, a component introduced with the article “a” may be understood to mean “one or more components,” and referring to “the component” subsequently in the claims may be understood to be equivalent to referring to “at least one of the one or more components.” Similarly, subsequent reference to a component introduced as “one or more components” using the terms “the” or “said” may refer to any or all of the one or more components. For example, referring to “the one or more components” subsequently in the claims may be understood to be equivalent to referring to “at least one of the one or more components.”

[0232] The term “determine” or “determining” encompasses a variety’ of actions and, therefore, “determining” can include calculating, computing, processing, deriving, investigating, looking up (such as via looking up in a table, a database or another data structure), ascertaining and the like. Also, “determining” can include receiving (e.g., receiving information), accessing (e.g., accessing data stored in memory) and the like.Also, “determining” can include resolving, obtaining, selecting, choosing, establishing, and other such similar actions.

[0233] In the figures, similar components or features may have the same reference label. Further, various components of the same type may be distinguished by following the reference label by a dash and a second label that distinguishes among the similar components. If just the first reference label is used in the specification, the description is applicable to any one of the similar components having the same first reference label irrespective of the second reference label, or other subsequent reference label.

[0234] The description set forth herein, in connection with the drawings, describes example configurations and does not represent all the examples that may be implemented or that are within the scope of the claims. The term “aspect” or “example” used herein means “serving as an aspect, example, instance, or illustration,” and not “preferred” or “advantageous over other aspects.” The detailed description includes specific details for the purpose of providing an understanding of the described techniques. These techniques, however, may be practiced without these specific details. In some instances, structures and devices are shown in block diagram form in order to avoid obscuring the concepts of the described examples.

[0235] The description herein is provided to enable a person having ordinary skill in the art to make or use the disclosure. Various modifications to the disclosure will be apparent to a person having ordinary skill in the art, and the generic principles defined herein may be applied to other variations without departing from the scope of the disclosure. Thus, the disclosure is not limited to the examples and designs described herein but is to be accorded the broadest scope consistent with the principles and novel features disclosed herein.

Claims

CLAIMSWhat is claimed is:1 . A first network entity for wireless communication, comprising: a processing system configured to: transmit capability information of the first network entity, wherein the capability information indicates a capability of the first network entity to generate a noise matrix on a per-symbol basis; receive, from a serving network entity and based on the capability information, control information that indicates whether interference from one or more neighbor network entities is consistent or inconsistent, wherein consistent interference occupies a same bandwidth during all symbols of a slot, and wherein inconsistent interference occupies different bandwidths in different symbols of the slot; and determine whether to perform per-symbol noise estimation or per-slot noise estimation based on the control information.

2. The first network entity of claim 1, wherein the control information indicates that the interference from the one or more neighbor network entities is consistent, and the processing system is configured to: perform per-slot noise estimation based on the interference from the one or more neighbor network entities being consistent.

3. The first network entity of claim 1, wherein the control information indicates that the interference from the one or more neighbor network entities is inconsistent, and the processing system is configured to: perform per-symbol noise estimation based on the interference from the one or more neighbor network entities being inconsistent.

4. The first network entity of claim 1, wherein the processing system is configured to: receive, from the serving network entity, updated control information that indicates whether the interference from the one or more neighbor network entities is consistent or inconsistent, wherein receipt of the updated control information is based on a change in interference consistency of the one or more neighbor network entities.

5. The first network entity of claim 1, wherein the capability information is transmitted via a medium access control (MAC)-control element (CE) that is associated with cell attachment to the serving network entity.

6. The first network entity of claim 1, wherein the capability information is transmitted based on initiation of communications with the serving network entity.

7. The first network entity of claim 1, wherein the processing system is configured to: switch between performance of the per-symbol noise estimation and the per-slot noise estimation based on the control information.

8. A serving network entity for wireless communication, comprising: a processing system configured to: receive capability information of a first network entity, the capability information indicative of a capability of the first network entity to generate a noise matrix on a per-symbol basis; receive, from one or more neighbor network entities, first control information that indicates whether interference from each of the one or more neighbor network entities is consistent or inconsistent, wherein consistent interference occupies a same bandwidth during all symbols of a slot, and wherein inconsistent interference occupies different bandwidths in different symbols of the slot; and transmit, to the first network entity and responsive to the capability information, second control information that indicates whether interference from the one or more neighbor network entities is consistent or inconsistent.

9. The serving network entity of claim 8, wherein the second control information indicates that the interference from the one or more neighbor netw ork entities is consistent based on the first control information indicating that interference from all of the one or more neighbor network entities is consistent.

10. The serving network entity of claim 8, wherein the second control information indicates that the interference from the one or more neighbor network entities is inconsistent based on the first control information indicating that interference from at least one of the one or more neighbor network entities is inconsistent.

11. The serving network entity of claim 8, wherein the processing system is configured to: transmit, to each of the one or more neighbor network entities, a request for the one or more neighbor network entities to transmit the first control information.

12. The serving network entity of claim 11, wherein the request is transmitted based on reception of the capability information.

13. The serving network entity of claim 11 , wherein the request is transmitted periodically.

14. The serving network entity of claim 11 , wherein the request is transmitted via one or more backhaul communication links between the serving network entity and the one or more neighbor network entities.

15. The serving network entity of claim 8, wherein the processing system is configured to: transmit, to the one or more neighbor network entities, an indication of a termination of communications with the first network entity, wherein the indication triggers a reduction in frequency of transmission of the first control information.

16. The serving network entity of claim 8, wherein the processing system is configured to: receive, from the one or more neighbor network entities, updated first control information that indicates whether the interference from each of the one or more neighbor network entities is consistent or inconsistent, wherein receipt of the updated first control information is based on a change in interference consistency of the one or more neighbor network entities.

17. The serving network entity of claim 8, wherein the first control information indicates whether interference from each of the one or more neighbor network entities is consistent or inconsistent for each slot of a plurality of slots.

18. The serving network entity of claim 17, wherein each slot of the plurality of slots is associated with a frequency domain consistency mode of a plurality of frequency domain consistency modes, and wherein the plurality of frequency domain consistency modes includes a first frequency domain consistency mode associated with consistent inference and a second frequency domain consistent mode associated with inconsistent interference.

19. The serving network entity of claim 8, wherein the first control information is received via one or more backhaul communication links between the serving network entity and the one or more neighbor network entities.

20. A method for wireless communications at a first network entity comprising: transmitting capability information of the first network entity, wherein the capability information indicates a capability of the first network entity to generate a noise matrix on a per-symbol basis; receiving, from a serving network entity and based on the capability information, control information that indicates whether interference from one or more neighbor network entities is consistent or inconsistent, wherein consistent interference occupies a same bandwidth during all symbols of a slot, and wherein inconsistent interference occupies different bandwidths in different symbols of the slot; and determining whether to perform per-symbol noise estimation or per-slot noise estimation based on the control information.

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