Methods and apparatuses for reporting csi prediction for a set of beams
Patent Information
- Application Number
- EP2022793639
- Authority / Receiving Office
- EP · EP
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2022-09-29
- Publication Date
- 2025-08-06
Smart Images

Figure 1.1
Abstract
Description
TIMELINES FOR TIME DOMAIN CHANNEL AND INTERFERENCE PREDICTION
[0001] FIELD OF TECHNOLOGY
[0002] The following relates to wireless communications, including timelines for time domain channel and interference prediction.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) .
[0004] SUMMARY
[0005] The described techniques relate to improved methods, systems, devices, and apparatuses that support timelines for time domain channel and interference prediction. For example, the described techniques provide for a UE to indicate a capability to support beam prediction techniques based on a channel measurement resource (CMR) or interference measurement resource (IMR) , or both. The UE may be configured to perform channel predictions, interference predictions, or both, based on the capability of the UE. The UE may transmit, to a network entity, a UE capability message to report the capability of the UE to support channel predictions, interference predictions, or both. The network entity may configure or indicate whether the UE is to perform channel prediction, interference prediction, or both, for a CSI report based on the UE capability. If the UE can support channel prediction or interference prediction, a time restriction parameter for the respective measurement may not be configured. By setting the time restriction parameter to not configured, transmission beams from the network entity may be considered as identical across different time instances, which may enable the UE to filter or combine measurements from different slots to assist channel and interference predictions for a set of beams. Some additional techniques are described to support a future CSI reference resource, which may be offset (e.g., in time) from a measurement CSI reference resource. The prediction CSI reference resource may be separated from the measurement CSI reference resource by an indicated slot offset. Configuring the future CSI reference resource may enable CSI parameters to be based on beam measurements which may be during or before the measurement CSI reference resource for non-predictive beam measurements and for beam prediction measurements, the measurements may be during or before the prediction CSI reference resource, which is a offset in time from the measurement CSI reference resource.
[0006] A method for wireless communications at a UE is described. The method may include transmitting a first control message indicating a capability of the UE to support beam prediction associated with CMRs or IMRs, or both, receiving a second control message indicating a set of parameters for a CSI report for the beam prediction associated with the CMRs or the IMRs, or both, based on the capability of the UE, and transmitting the CSI report indicating predicted CSI measurements for a set of beams during a future slot based on the set of parameters.
[0007] An apparatus for wireless communications at a UE is described. The apparatus may include a processor and a memory coupled with the processor, with instructions stored in the memory. The instructions may be executable by the processor to cause the apparatus to transmit a first control message indicating a capability of the UE to support beam prediction associated with CMRs or IMRs, or both, receive a second control message indicating a set of parameters for a CSI report for the beam prediction associated with the CMRs or the IMRs, or both, based on the capability of the UE, and transmit the CSI report indicating predicted CSI measurements for a set of beams during a future slot based on the set of parameters.
[0008] Another apparatus for wireless communications at a UE is described. The apparatus may include means for transmitting a first control message indicating a capability of the UE to support beam prediction associated with CMRs or IMRs, or both, means for receiving a second control message indicating a set of parameters for a CSI report for the beam prediction associated with the CMRs or the IMRs, or both, based on the capability of the UE, and means for transmitting the CSI report indicating predicted CSI measurements for a set of beams during a future slot based on the set of parameters.
[0009] A non-transitory computer-readable medium storing code for wireless communications at a UE is described. The code may include instructions executable by a processor to transmit a first control message indicating a capability of the UE to support beam prediction associated with CMRs or IMRs, or both, receive a second control message indicating a set of parameters for a CSI report for the beam prediction associated with the CMRs or the IMRs, or both, based on the capability of the UE, and transmit the CSI report indicating predicted CSI measurements for a set of beams during a future slot based on the set of parameters.
[0010] Some examples of the method, apparatuses, and non-transitory computer-readable medium described herein may further include operations, features, means, or instructions for receiving radio resource control signaling indicating a slot offset between a first slot for the CSI report and a prediction reference resource during the future slot, where the predicted CSI measurements may be based on the prediction reference resource.
[0011] In some examples of the method, apparatuses, and non-transitory computer-readable medium described herein, the prediction reference resource during the future slot may be offset from a measurement reference resource in time by the slot offset.
[0012] Some examples of the method, apparatuses, and non-transitory computer-readable medium described herein may further include operations, features, means, or instructions for predicting CSI measurements associated with the CMRs based on a time restriction for channel measurements not being configured.
[0013] Some examples of the method, apparatuses, and non-transitory computer-readable medium described herein may further include operations, features, means, or instructions for predicting CSI measurements associated with the IMRs based on a time restriction for interference measurements not being configured.
[0014] Some examples of the method, apparatuses, and non-transitory computer-readable medium described herein may further include operations, features, means, or instructions for receiving a radio resource control message indicating that a time restriction may be not configured for channel measurements or interference measurements, or both, based on the set of parameters.
[0015] Some examples of the method, apparatuses, and non-transitory computer-readable medium described herein may further include operations, features, means, or instructions for receiving a radio resource control message indicating one or more sets of parameters for predicted measurements associated with the CMRs or the IMRs, or both, based on the capability of the UE, where the second control message indicates the set of parameters from the one or more sets of parameters.
[0016] In some examples of the method, apparatuses, and non-transitory computer-readable medium described herein, receiving the second control message may include operations, features, means, or instructions for receiving a radio resource control message configuring a periodic CSI report in accordance with the set of parameters, where the CSI report may be the periodic CSI report.
[0017] In some examples of the method, apparatuses, and non-transitory computer-readable medium described herein, receiving the second control message may include operations, features, means, or instructions for receiving a medium access control message activating a semi-persistent CSI report in accordance with the set of parameters, where the CSI report may be the semi-persistent CSI report.
[0018] In some examples of the method, apparatuses, and non-transitory computer-readable medium described herein, receiving the second control message may include operations, features, means, or instructions for receiving a medium access control message triggering an aperiodic CSI report in accordance with the set of parameters, where the CSI report may be the aperiodic CSI report.
[0019] In some examples of the method, apparatuses, and non-transitory computer-readable medium described herein, the predicted CSI measurements may be based on predicted channel measurements of the CMRs or interference measurements of the IMRs which may be during or prior to the future slot in time.
[0020] In some examples of the method, apparatuses, and non-transitory computer-readable medium described herein, the predicted CSI measurements include a predicted channel quality indicator, a predicted rank indicator, a predicted precoder matrix indication, or any combination thereof, for the set of beams during the future slot.
[0021] A method for wireless communications at a network entity is described. The method may include receiving a first control message indicating a capability of a UE to support beam prediction associated with CMRs or IMRs, or both, transmitting a second control message indicating a set of parameters for a CSI report for the beam prediction associated with the CMRs or the IMRs, or both, based on the capability of the UE, and receiving the CSI report indicating predicted CSI measurements for a set of beams during a future slot based on the set of parameters.
[0022] An apparatus for wireless communications at a network entity is described. The apparatus may include a processor and a memory coupled with the processor, with instructions stored in the memory. The instructions may be executable by the processor to cause the apparatus to receive a first control message indicating a capability of a UE to support beam prediction associated with CMRs or IMRs, or both, transmit a second control message indicating a set of parameters for a CSI report for the beam prediction associated with the CMRs or the IMRs, or both, based on the capability of the UE, and receive the CSI report indicating predicted CSI measurements for a set of beams during a future slot based on the set of parameters.
[0023] Another apparatus for wireless communications at a network entity is described. The apparatus may include means for receiving a first control message indicating a capability of a UE to support beam prediction associated with CMRs or IMRs, or both, means for transmitting a second control message indicating a set of parameters for a CSI report for the beam prediction associated with the CMRs or the IMRs, or both, based on the capability of the UE, and means for receiving the CSI report indicating predicted CSI measurements for a set of beams during a future slot based on the set of parameters.
[0024] A non-transitory computer-readable medium storing code for wireless communications at a network entity is described. The code may include instructions executable by a processor to receive a first control message indicating a capability of a UE to support beam prediction associated with CMRs or IMRs, or both, transmit a second control message indicating a set of parameters for a CSI report for the beam prediction associated with the CMRs or the IMRs, or both, based on the capability of the UE, and receive the CSI report indicating predicted CSI measurements for a set of beams during a future slot based on the set of parameters.
[0025] Some examples of the method, apparatuses, and non-transitory computer-readable medium described herein may further include operations, features, means, or instructions for transmitting radio resource control signaling indicating a slot offset between a first slot for the CSI report and a prediction reference resource during the future slot, where the predicted CSI measurements may be based on the prediction reference resource.
[0026] In some examples of the method, apparatuses, and non-transitory computer-readable medium described herein, the prediction reference resource during the future slot may be offset from a measurement reference resource in time by the slot offset.
[0027] Some examples of the method, apparatuses, and non-transitory computer-readable medium described herein may further include operations, features, means, or instructions for transmitting a radio resource control message indicating that a time restriction may be not configured for channel measurements or interference measurements, or both, based on the set of parameters.
[0028] Some examples of the method, apparatuses, and non-transitory computer-readable medium described herein may further include operations, features, means, or instructions for transmitting a radio resource control message indicating one or more sets of parameters for predicted measurements associated with the CMRs or the IMRs, or both, based on the capability of the UE, where the second control message indicates the set of parameters from the one or more sets of parameters.
[0029] In some examples of the method, apparatuses, and non-transitory computer-readable medium described herein, transmitting the second control message may include operations, features, means, or instructions for transmitting a radio resource control message configuring a periodic CSI report in accordance with the set of parameters, where the CSI report may be the periodic CSI report.
[0030] In some examples of the method, apparatuses, and non-transitory computer-readable medium described herein, transmitting the second control message may include operations, features, means, or instructions for transmitting a medium access control message activating a semi-persistent CSI report in accordance with the set of parameters, where the CSI report may be the semi-persistent CSI report.
[0031] In some examples of the method, apparatuses, and non-transitory computer-readable medium described herein, transmitting the second control message may include operations, features, means, or instructions for transmitting a medium access control message triggering an aperiodic CSI report in accordance with the set of parameters, where the CSI report may be the aperiodic CSI report.
[0032] In some examples of the method, apparatuses, and non-transitory computer-readable medium described herein, the predicted CSI measurements may be based on predicted channel measurements of the CMRs or interference measurements of the IMRs which may be during or prior to the future slot in time.
[0033] In some examples of the method, apparatuses, and non-transitory computer-readable medium described herein, the predicted CSI measurements include a predicted channel quality indicator, a predicted rank indicator, a predicted precoder matrix indication, or any combination thereof, for the set of beams during the future slot.BRIEF DESCRIPTION OF THE DRAWINGS
[0034] FIG. 1 illustrates an example of a wireless communications system that supports timelines for time domain channel and interference prediction in accordance with one or more aspects of the present disclosure.
[0035] FIG. 2 illustrates an example of a wireless communications system that supports timelines for time domain channel and interference prediction in accordance with one or more aspects of the present disclosure.
[0036] FIG. 3 illustrates an example of a predictive channel state information (CSI) report timeline that supports timelines for time domain channel and interference prediction in accordance with one or more aspects of the present disclosure.
[0037] FIG. 4 illustrates an example of a process flow that supports timelines for time domain channel and interference prediction in accordance with one or more aspects of the present disclosure.
[0038] FIGs. 5 and 6 show block diagrams of devices that support timelines for time domain channel and interference prediction in accordance with one or more aspects of the present disclosure.
[0039] FIG. 7 shows a block diagram of a communications manager that supports timelines for time domain channel and interference prediction in accordance with one or more aspects of the present disclosure.
[0040] FIG. 8 shows a diagram of a system including a device that supports timelines for time domain channel and interference prediction in accordance with one or more aspects of the present disclosure.
[0041] FIGs. 9 and 10 show block diagrams of devices that support timelines for time domain channel and interference prediction in accordance with one or more aspects of the present disclosure.
[0042] FIG. 11 shows a block diagram of a communications manager that supports timelines for time domain channel and interference prediction in accordance with one or more aspects of the present disclosure.
[0043] FIG. 12 shows a diagram of a system including a device that supports timelines for time domain channel and interference prediction in accordance with one or more aspects of the present disclosure.
[0044] FIGs. 13 through 16 show flowcharts illustrating methods that support timelines for time domain channel and interference prediction in accordance with one or more aspects of the present disclosure.DETAILED DESCRIPTION
[0045] In some wireless communication systems, beam management may be calculated via historic measurements (e.g., the last beam measurement) . However, calculating beam qualities and failures via measurements alone may result in high power consumption or overhead. Additionally, or alternatively, beam accuracy may be limited if power and overhead consumption is limited. To prevent these issues, some wireless systems may implement predictive beam management using artificial intelligence (AI) or machine learning (ML) models. For example, predicting non-measured beam qualities using a machine learning model may reduce power consumption and overhead, and predicting future beam blockages and failures may reduce latency and increase throughput. Some systems may implement beam predictions for channel measurement resources (CMRs) to predict channel measurements, but interference may similarly impact channel quality and beam management. However, not all UEs served by a cell may be capable of performing both beam prediction using CMRs and beam prediction using interference measurement resources (IMRs) .
[0046] Wireless communications systems may support techniques for a UE to indicate a capability to support beam prediction techniques based on a CMR or IMR, or both. The UE may be configured to perform channel predictions, interference predictions, or both, based on the capability of the UE. The UE may transmit, to a network entity, a UE capability message to report the capability of the UE to support channel predictions, interference predictions, or both. The network entity may configure or indicate whether the UE is to perform channel prediction, interference prediction, or both, for a CSI report based on the UE capability. If the UE can support channel prediction or interference prediction, a time restriction parameter for the respective measurement may not be configured (e.g., may be set to notConfigured) . By setting the time restriction parameter to not configured, transmission beams from the network entity may be considered as identical across different time instances, which may enable the UE to filter or combine measurements from different slots to assist channel and interference predictions for a set of beams. Some additional techniques are described to support a future CSI reference resource, which may be offset (e.g., in time) from a measurement CSI reference resource. The prediction CSI reference resource may be separated from the measurement CSI reference resource by an indicated slot offset. Configuring the future CSI reference resource may enable CSI parameters to be based on beam measurements which may be during or before the measurement CSI reference resource for non-predictive beam measurements and for beam prediction measurements, the measurements may be during or before the prediction CSI reference resource, which is a offset in time from the measurement CSI reference resource.
[0047] Aspects of the disclosure are initially described in the context of wireless communications systems. Aspects of the disclosure are further illustrated by and described with reference to apparatus diagrams, system diagrams, and flowcharts that relate to timelines for time domain channel and interference prediction.
[0048] FIG. 1 illustrates an example of a wireless communications system 100 that supports timelines for time domain channel and interference prediction 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.
[0049] 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 communication links 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) .
[0050] 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 115 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.
[0051] As described herein, a node of the wireless communications system 100, which may be referred to as a network node, or a wireless node, may be a network entity 105 (e.g., any network entity described herein) , a UE 115 (e.g., any UE described herein) , a network controller, an apparatus, a device, a computing system, one or more components, or another suitable processing entity configured to perform any of the techniques described herein. For example, a node may be a UE 115. As another example, a node may be a network entity 105. As another example, a first node may be configured to communicate with a second node or a third node. In one aspect of this example, the first node may be a UE 115, the second node may be a network entity 105, and the third node may be a UE 115. In another aspect of this example, the first node may be a UE 115, the second node may be a network entity 105, and the third node may be a network entity 105. In yet other aspects of this example, the first, second, and third nodes may be different relative to these examples. Similarly, reference to a UE 115, network entity 105, apparatus, device, computing system, or the like may include disclosure of the UE 115, network entity 105, apparatus, device, computing system, or the like being a node. For example, disclosure that a UE 115 is configured to receive information from a network entity 105 also discloses that a first node is configured to receive information from a second node.
[0052] 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 S1, 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.
[0053] 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, a NodeB, 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) .
[0054] 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, such as an integrated access backhaul (IAB) network, an open RAN (O-RAN) (e.g., a network configuration sponsored by the O-RAN Alliance) , or a virtualized RAN (vRAN) (e.g., a cloud RAN (C-RAN) ) . For example, 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) , a Non-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) ) .
[0055] 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 (L1) (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 160. 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 or more 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., F1, F1-c, F1-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.
[0056] 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 entity 105 (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 more components of the disaggregated RAN architecture (e.g., one or more IAB nodes 104 or components of IAB nodes 104) may be configured to operate according to the techniques described herein.
[0057] For instance, an access network (AN) or RAN may include communications between access nodes (e.g., an IAB donor) , IAB nodes 104, and one or more UEs 115. The IAB donor may facilitate connection between the core network 130 and the AN (e.g., via a wired or wireless connection to the core network 130) . That is, an IAB donor may refer to a RAN node with a wired or wireless connection to core network 130. The IAB donor may include a CU 160 and at least one DU 165 (e.g., and RU 170) , in which case the CU 160 may communicate with the core network 130 via an interface (e.g., a backhaul link) . IAB donor and IAB nodes 104 may communicate via an F1 interface according to a protocol that defines signaling messages (e.g., an F1 AP protocol) . Additionally, or alternatively, the CU 160 may communicate with the core network via an interface, which may be an example of a portion of backhaul link, and may communicate with other CUs 160 (e.g., a CU 160 associated with an alternative IAB donor) via an Xn-C interface, which may be an example of a portion of a backhaul link.
[0058] An IAB node 104 may refer to a RAN node that provides IAB functionality (e.g., access for UEs 115, wireless self-backhauling capabilities) . A DU 165 may act as a distributed scheduling node towards child nodes associated with the IAB node 104, and the IAB-MT may act as a scheduled node towards parent nodes associated with the IAB node 104. That is, an IAB donor may be referred to as a parent node in communication with one or more child nodes (e.g., an IAB donor may relay transmissions for UEs through one or more other IAB nodes 104) . Additionally, or alternatively, an IAB node 104 may also be referred to as a parent node or a child node to other IAB nodes 104, depending on the relay chain or configuration of the AN. Therefore, the IAB-MT entity of IAB nodes 104 may provide a Uu interface for a child IAB node 104 to receive signaling from a parent IAB node 104, and the DU interface (e.g., DUs 165) may provide a Uu interface for a parent IAB node 104 to signal to a child IAB node 104 or UE 115.
[0059] For example, IAB node 104 may be referred to as a parent node that supports communications for a child IAB node, or referred to as a child IAB node associated with an IAB donor, or both. The IAB donor may include a CU 160 with a wired or wireless connection (e.g., a backhaul communication link 120) to the core network 130 and may act as parent node to IAB nodes 104. For example, the DU 165 of IAB donor may relay transmissions to UEs 115 through IAB nodes 104, or may directly signal transmissions to a UE 115, or both. The CU 160 of IAB donor may signal communication link establishment via an F1 interface to IAB nodes 104, and the IAB nodes 104 may schedule transmissions (e.g., transmissions to the UEs 115 relayed from the IAB donor) through the DUs 165. That is, data may be relayed to and from IAB nodes 104 via signaling via an NR Uu interface to MT of the IAB node 104. Communications with IAB node 104 may be scheduled by a DU 165 of IAB donor and communications with IAB node 104 may be scheduled by DU 165 of IAB node 104.
[0060] 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 timelines for time domain channel and interference prediction 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) .
[0061] 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 (IoT) device, an Internet of Everything (IoE) 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.
[0062] 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.
[0063] The UEs 115 and the network entities 105 may wirelessly communicate with one another via one or more communication links 125 (e.g., an access link) using resources associated with one or more carriers. The term “carrier” may refer to a set of RF spectrum resources having a defined physical layer structure for supporting the communication links 125. For example, a carrier used for a communication link 125 may 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 carriers 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, sub-entity) 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) .
[0064] In some examples, such as in a carrier aggregation configuration, a carrier may also have acquisition signaling or control signaling that coordinates operations for other carriers. A carrier may be associated with a frequency channel (e.g., an evolved universal mobile telecommunication system terrestrial radio access (E-UTRA) absolute RF channel number (EARFCN) ) and may be identified according to a channel raster for discovery by the UEs 115. A carrier may be operated in a standalone mode, in which case initial acquisition and connection may be conducted by the UEs 115 via the carrier, or the carrier may be operated in a non-standalone mode, in which case a connection is anchored using a different carrier (e.g., of the same or a different radio access technology) .
[0065] The communication links 125 shown in the wireless communications system 100 may include downlink transmissions (e.g., forward link transmissions) from a network entity 105 to a UE 115, uplink transmissions (e.g., return link transmissions) from a UE 115 to a network entity 105, or both, among other configurations of transmissions. Carriers may carry downlink or uplink communications (e.g., in an FDD mode) or may be configured to carry downlink and uplink communications (e.g., in a TDD mode) .
[0066] A carrier may be associated with a particular bandwidth of the RF spectrum and, in some examples, the carrier bandwidth may be referred to as a “system bandwidth” of the carrier or the wireless communications system 100. For example, the carrier bandwidth may be one of a set of bandwidths for carriers of a particular radio access technology (e.g., 1.4, 3, 5, 10, 15, 20, 40, or 80 megahertz (MHz) ) . Devices of the wireless communications system 100 (e.g., the network entities 105, the UEs 115, or both) may have hardware configurations that support communications using a particular carrier bandwidth or may be configurable to support communications using one of a set of carrier bandwidths. In some examples, the wireless communications system 100 may include network entities 105 or UEs 115 that support concurrent communications using carriers associated with multiple carrier bandwidths. In some examples, each served UE 115 may be configured for operating using portions (e.g., a sub-band, a BWP) or all of a carrier bandwidth.
[0067] 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.
[0068] One or more numerologies for a carrier may be supported, and a numerology may include a subcarrier spacing (Δf) and a cyclic prefix. A carrier may be divided into one or more BWPs having the same or different numerologies. In some examples, a UE 115 may be configured with multiple BWPs. In some examples, a single BWP for a carrier may be active at a given time and communications for the UE 115 may be restricted to one or more active BWPs.
[0069] The time intervals for the network entities 105 or the UEs 115 may be expressed in multiples of a basic time unit which may, for example, refer to a sampling period of Ts=1 / (Δfmax·Nf) seconds, for which Δfmax may represent a supported subcarrier spacing, and Nf 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) .
[0070] 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 may be 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., Nf) sampling periods. The duration of a symbol period may depend on the subcarrier spacing or frequency band of operation.
[0071] 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) ) .
[0072] 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 system bandwidth 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.
[0073] 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 “cell” 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.
[0074] 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 network 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 network 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 115 associated 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.
[0075] In some examples, a carrier may support multiple cells, and different cells may be configured according to different protocol types (e.g., MTC, narrowband IoT (NB-IoT) , enhanced mobile broadband (eMBB) ) that may provide access for different types of devices.
[0076] 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 110 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.
[0077] 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.
[0078] Some UEs 115, such as MTC or IoT devices, may be low cost or low complexity devices and may provide for automated communication between machines (e.g., via Machine-to-Machine (M2M) communication) . M2M communication or MTC may refer to data communication technologies that allow devices to communicate with one another or a network entity 105 (e.g., a base station 140) without human intervention. In some examples, M2M communication or MTC may include communications from devices that integrate sensors or meters to measure or capture information and relay such information to a central server or application program that uses the information or presents the information to humans interacting with the application program. Some UEs 115 may be designed to collect information or enable automated behavior of machines or other devices. Examples of applications for MTC devices include smart metering, inventory monitoring, water level monitoring, equipment monitoring, healthcare monitoring, wildlife monitoring, weather and geological event monitoring, fleet management and tracking, remote security sensing, physical access control, and transaction-based business charging.
[0079] Some UEs 115 may be configured to employ operating modes that reduce power consumption, such as half-duplex communications (e.g., a mode that supports one-way communication via transmission or reception, but not transmission and reception concurrently) . In some examples, half-duplex communications may be performed at a reduced peak rate. Other power conservation techniques for the UEs 115 include entering a power saving deep sleep mode when not engaging in active communications, operating using a limited bandwidth (e.g., according to narrowband communications) , or a combination of these techniques. For example, some UEs 115 may be configured for operation using a narrowband protocol type that is associated with a defined portion or range (e.g., set of subcarriers or resource blocks (RBs) ) within a carrier, within a guard-band of a carrier, or outside of a carrier.
[0080] 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 services such as push-to-talk, video, or data. Support for ultra-reliable, low-latency functions may include prioritization of services, and such services may be used for public safety or general commercial applications. The terms ultra-reliable, low-latency, and ultra-reliable low-latency may be used interchangeably herein.
[0081] 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 entity 105 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.
[0082] In some systems, a D2D communication link 135 may be an example of a communication channel, such as a sidelink communication channel, between vehicles (e.g., UEs 115) . In some examples, vehicles may communicate using vehicle-to-everything (V2X) communications, vehicle-to-vehicle (V2V) communications, or some combination of these. A vehicle may signal information related to traffic conditions, signal scheduling, weather, safety, emergencies, or any other information relevant to a V2X system. In some examples, vehicles in a V2X system may communicate with roadside infrastructure, such as roadside units, or with the network via one or more network nodes (e.g., network entities 105, base stations 140, RUs 170) using vehicle-to-network (V2N) communications, or with both.
[0083] 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 for one or more network operators. The IP services 150 may include access to the Internet, Intranet (s) , an IP Multimedia Subsystem (IMS) , or a Packet-Switched Streaming Service.
[0084] 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.
[0085] The wireless communications system 100 may also operate using a super high frequency (SHF) region, which may be in the range of 3 GHz to 30 GHz, also known as the centimeter band, or using an extremely high frequency (EHF) region of the spectrum (e.g., from 30 GHz to 300 GHz) , also known as the millimeter band. In some examples, the wireless communications system 100 may support millimeter wave (mmW) communications between the UEs 115 and the network entities 105 (e.g., base stations 140, RUs 170) , and EHF antennas of the respective devices may be smaller and more closely spaced than UHF antennas. In some examples, such techniques may facilitate using antenna arrays within a device. The propagation of EHF transmissions, however, may be subject to even greater attenuation and shorter range than SHF or UHF transmissions. The techniques disclosed herein may be employed across transmissions that use one or more different frequency regions, and designated use of bands across these frequency regions may differ by country or regulating body.
[0086] 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 carrier 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.
[0087] 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 base station 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 115. 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.
[0088] The network entities 105 or the UEs 115 may use MIMO communications to exploit multipath signal propagation and increase spectral efficiency by transmitting or receiving multiple signals via different spatial layers. Such techniques may be referred to as spatial multiplexing. The multiple signals may, for example, be transmitted by the transmitting device via different antennas or different combinations of antennas. Likewise, the multiple signals may be received by the receiving device via different antennas or different combinations of antennas. Each of the multiple signals may be referred to as a separate spatial stream and may carry information associated with the same data stream (e.g., the same codeword) or different data streams (e.g., different codewords) . Different spatial layers may be associated with different antenna ports used for channel measurement and reporting. MIMO techniques include single-user MIMO (SU-MIMO) , for which multiple spatial layers are transmitted to the same receiving device, and multiple-user MIMO (MU-MIMO) , for which multiple spatial layers are transmitted to multiple devices.
[0089] 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) .
[0090] A network entity 105 or a UE 115 may use beam sweeping techniques as part of beamforming operations. For example, a network entity 105 (e.g., a base station 140, an RU 170) may use multiple antennas or antenna arrays (e.g., antenna panels) to conduct beamforming operations for directional communications with a UE 115. Some signals (e.g., synchronization signals, reference signals, beam selection signals, or other control signals) may be transmitted by a network entity 105 multiple times along different directions. For example, the network entity 105 may transmit a signal according to different beamforming weight sets associated with different directions of transmission. Transmissions along different beam directions may be used to identify (e.g., by a transmitting device, such as a network entity 105, or by a receiving device, such as a UE 115) a beam direction for later transmission or reception by the network entity 105.
[0091] Some signals, such as data signals associated with a particular receiving device, may be transmitted by transmitting device (e.g., a transmitting network entity 105, a transmitting UE 115) along a single beam direction (e.g., a direction associated with the receiving device, such as a receiving network entity 105 or a receiving UE 115) . In some examples, the beam direction associated with transmissions along a single beam direction may be determined based on a signal that was transmitted along one or more beam directions. For example, a UE 115 may receive one or more of the signals transmitted by the network entity 105 along different directions and may report to the network entity 105 an indication of the signal that the UE 115 received with a highest signal quality or an otherwise acceptable signal quality.
[0092] In some examples, transmissions by a device (e.g., by a network entity 105 or a UE 115) may be performed using multiple beam directions, and the device may use a combination of digital precoding or beamforming to generate a combined beam for transmission (e.g., from a network entity 105 to a UE 115) . The UE 115 may report feedback that indicates precoding weights for one or more beam directions, and the feedback may correspond to a configured set of beams across a system bandwidth or one or more sub-bands. The network entity 105 may transmit a reference signal (e.g., a cell-specific reference signal (CRS) , a CSI reference signal (CSI-RS) ) , which may be precoded or unprecoded. The UE 115 may provide feedback for beam selection, which may be a precoding matrix indicator (PMI) or codebook-based feedback (e.g., a multi-panel type codebook, a linear combination type codebook, a port selection type codebook) . Although these techniques are described with reference to signals transmitted along one or more directions by a network entity 105 (e.g., a base station 140, an RU 170) , a UE 115 may employ similar techniques for transmitting signals multiple times along different directions (e.g., for identifying a beam direction for subsequent transmission or reception by the UE 115) or for transmitting a signal along a single direction (e.g., for transmitting data to a receiving device) .
[0093] A receiving device (e.g., a UE 115) may perform reception operations in accordance with multiple receive configurations (e.g., directional listening) when receiving various signals from a receiving device (e.g., a network entity 105) , such as synchronization signals, reference signals, beam selection signals, or other control signals. For example, a receiving device may perform reception in accordance with multiple receive directions by receiving via different antenna subarrays, by processing received signals according to different antenna subarrays, by receiving according to different receive beamforming weight sets (e.g., different directional listening weight sets) applied to signals received at multiple antenna elements of an antenna array, or by processing received signals according to different receive beamforming weight sets applied to signals received at multiple antenna elements of an antenna array, any of which may be referred to as “listening” according to different receive configurations or receive directions. In some examples, a receiving device may use a single receive configuration to receive along a single beam direction (e.g., when receiving a data signal) . The single receive configuration may be aligned along a beam direction determined based on listening according to different receive configuration directions (e.g., a beam direction determined to have a highest signal strength, highest signal-to-noise ratio (SNR) , or otherwise acceptable signal quality based on listening according to multiple beam directions) .
[0094] The wireless communications system 100 may be a packet-based network that operates according to a layered protocol stack. In the user plane, communications at the bearer or PDCP layer may be IP-based. An RLC layer may perform packet segmentation and reassembly to communicate via logical channels. A MAC layer may perform priority handling and multiplexing of logical channels into transport channels. The MAC layer also may implement error detection techniques, error correction techniques, or both to support retransmissions to improve link efficiency. In the control plane, an RRC layer may provide establishment, configuration, and maintenance of an RRC connection between a UE 115 and a network entity 105 or a core network 130 supporting radio bearers for user plane data. A PHY layer may map transport channels to physical channels.
[0095] The UEs 115 and the network entities 105 may support retransmissions of data to increase the likelihood that data is received successfully. Hybrid automatic repeat request (HARQ) feedback is one technique for increasing the likelihood that data is received correctly via a communication link (e.g., a communication link 125, a D2D communication link 135) . HARQ may include a combination of error detection (e.g., using a cyclic redundancy check (CRC) ) , forward error correction (FEC) , and retransmission (e.g., automatic repeat request (ARQ) ) . HARQ may improve throughput at the MAC layer in poor radio conditions (e.g., low signal-to-noise conditions) . In some examples, a device may support same-slot HARQ feedback, in which case the device may provide HARQ feedback in a specific slot for data received via a previous symbol in the slot. In some other examples, the device may provide HARQ feedback in a subsequent slot, or according to some other time interval.
[0096] In some examples of the wireless communication system 100, beam management may be calculated via historic measurements (e.g., the last beam measurement) . However, calculating beam qualities and failures via measurements alone may result in high power consumption or overhead. Additionally, beam accuracy may be limited if power and overhead consumption is limited. To prevent these issues, the wireless communication system 100 may implement predictive beam management using artificial intelligence (AI) or machine learning models. In some examples, predicting non-measured beam qualities may reduce power consumption and overhead, and predicting future beam blockages and failures may reduce latency and increase throughput. In some cases, the wireless communication system 100 may implement beam predictions for CMRs to predict channel measurements, but interference may similarly impact channel quality and beam management. However, not all UEs 115 served by a cell may be capable of computing beam prediction using CMRs and beam prediction using IMRs. In some examples, predicting future interference may require additional computation resources (e.g., additional neural networks (NNs) or additional data collection efforts) , and in some cases a UE may not have access to such additional resources.
[0097] In some examples, as beam predictions may be based on UEs 115 speed or trajectories, a quantity of receive beams used or to be used, interference, or other qualities, predicting the measurements may be highly non-linear. As such, a machine learning model may be desired to predict CMRs or IMRs. For example, as an input to the AI / ML model, there may be a time series of L1 reference signal received power (RSRP) measurements. In some cases, the input may be based on inference from the network entity 105 which may be based on L1-RSRPs or receive beams reported by different UE (s) 115 or side information (e.g., UE 115 location information) . In some other cases, the input may be based on inference from the UE 115 which may be based on L1-RSRPs measured by the UE 115, receive beams used at the UE 115, or side information (e.g., location, other UEs 115 predictions) signaled from the network entity 105 via downlink communications.
[0098] In some examples, there may be some tradeoffs for having the input be based on inference from the network entity 105 or the UE 115. For example, when predicting future downlink transmission beam qualities, the UE 115 may have more observations via measurements than the network entity 105, whose observations are determined based on feedback from the UE 115. Therefore, predictions at the UE 115 may outperform those of the network entity 105, but the UE 115 may consume more power for the inference efforts than the network entity 105. Additionally, training the machine learning model at the network entity 105 or the UE 115 may have some additional tradeoffs. For examples, training the model at the network entity 105, data may be collected via air interface or via app-layer approaches, however this may lead to additional data collections efforts which may increase power consumption or latency. However, training the model at the UE 115 may also lead to increased power consumption or latency as additional computation and buffering efforts may be required by the model training. Additionally, there may be a need for additional data storage at the UE 115. As such, while both the UE 115 and the network entity 105 may have increased power consumption or latency due to training the model, the power consumption or latency of the UE 115 or the network entity 105 may be offset by the other device being used for beam predictions. For example, in some cases the network entity 105 may train the model and the UE 115 may perform the beam predictions for the model (or vice-versa) , as such, neither the network entity 105 nor the UE 115 would continually experience increased power or consumption over a given amount of time.
[0099] After being trained and receiving an input from either the network entity 105 or UE 115, the machine learning model may output various beam predictions. In some cases, the model may output predicted L1-RSRPs and a corresponding confidence level (e.g., facilitated by further RSRP mean and deviation predictions) along with predicted beam identifiers and a corresponding confidence level. The confidence levels (e.g., ranging from 0 for least confident to 1 for most confident) generated alongside the predicted outputs enable the network entity 105 and the UE 115 to determine whether a predicted beam is to be used. For example, a high confidence level (e.g., 0.9) may signal that a predicted measurement is accurate and trustworthy, whereas a low confidence level (e.g., 0.1) may signal that the predicted measurement should not be used and should be regenerated after more data has been collected to calculate the predicted measurement. In some cases, there may be a threshold for the confidence level wherein if a prediction has a confidence level below a certain predetermined threshold (e.g., 0.5) , the prediction should not be used and should be determined again with more information. In some examples, predicting the L1-RSRPs and beam identifiers may support serving beam refinement and link quality (e.g., a channel quality index (CQI) or precoder matrix indicator (PMI) ) and interference adaptation. In some other examples of the model output, the model may generate predictions on beam failure and blockage. These predictions may support generations of beam failure or blockage predictions or radio link failure predictions. In such examples, the machine learning model may benefit the UE 115 by supporting lower power consumption or lower UE 115 specific reference signal overhead compared to other statistical signal processing methods and may allow for lower latency and increased throughput.
[0100] In some examples, the UE 115 may use the machine learning model to predict measurements for a CSI report. The network entity may define a slot n for uplink transmission, from the UE 115 to the network entity 105, of the CSI report. In some cases, the slot n may also be considered the CSI reporting slot n. In the frequency domain, a CSI reference resource may be defined by a group of physical resource blocks corresponding to a band to which the CSI rates have been derived. In the time domain, the CSI reference resource, for the CSI reporting in the uplink slot n, may be defined by a single downlink slot n-nCSI_ref. The CSI reference resource may be offset from the slot for transmitting the CSI report to provide sufficient time for the UE 115 time to generate the parameters of the CSI report. In some examples, the CSI report may be periodic or semi-periodic. In some cases, for a single CSI reference resource, the nCSI_ref may be the smallest value greater than or equal to where μDL is the subcarrier spacing of the downlink channel, such that nCSI_Ref corresponds to a valid downlink slot. In some other cases, such as for multiple CSI reference resources, the nCSI_ref may be the smallest value greater than or equal to such that nCSI_ref corresponds to a valid downlink slot. In some other examples, the CSI report reporting, at slot n, may be aperiodic.
[0101] In some cases, if the reporting is aperiodic, the UE 115 may be indicated by a control message (e.g., DCI) to report the CSI report in the same slot as CSI request. In such cases, the nCSI_ref may make the CSI reference resource be within the same valid downlink slot as the corresponding control message requesting the CSI report. In some other cases, if the reporting is aperiodic and the requesting control message and the CSI reporting slot n are in different slots, may be the smallest value that may is ≥ such that may correspond to a valid downlink slot, where Z’ may correspond to a delay requirement. In such examples, a slot in a serving cell may be considered a valid downlink slot if the slot contains at least one higher layer configured downlink or flexible symbol and does not fall within a configured measured gap for the UE 115. If there is no valid downlink slot for the CSI reference resource corresponding to a CSI report setting in the serving cell, CSI reporting is omitted for the serving cell in the uplink slot n.
[0102] When using a CMR or IMR, or both, to derive report quantities for a measurement-based CSI report, the CMR or IMR may be no later than the CSI reference resource. For example, when deriving a CQI, PMI, rank indicator (RI) , L1-RSRP, L1 signal-to-interference plus noise (SINR) , or any combination thereof, for transmission at the CSI reporting slot n, there may be high level parameters associated with generating the measurements or values. In some cases, when measuring CMR, a high level time restriction parameter (e.g., timeRestrictionForChannelMeasurements) may not be configured (e.g., may be set to notConfigured) . When the time restriction parameter is not configured, time domain filtering may be allowed (e.g., considering historical measurements) , and the UE 115 may consider beams across time domain occasions as identical. In some examples, the network entity 105 may select beams such that the beams do not change across time domain occasions. In some other cases, the time restriction parameter may be configured (e.g., set to Configured) . In such cases, time domain filtering may not be allowed, and measurements may be based on a most recent measurement before the CSI reference resource. As such, the network entity 105 may change its precoding for beams across time domain occasions. In some examples, similar techniques may be used for generating measurements based on IMRs.
[0103] In some examples, a UE 115 may be configured to perform channel predictions, interference predictions, or both, based on a capability of the UE 115. Predicting future interference may require additional computation resources (e.g., additional NNs or additional data collection efforts) , and in some cases a UE may not have access to such additional resources. Therefore, the UE 115 may transmit a capability message to indicate whether channel measurements and interference measurements can be based on prediction or measurement, or both, when deriving report quantities. For example, the UE 115 may transmit, to a network entity 105, a capability message to report the capability of the UE 115 to support channel predictions, interference predictions, or both. The network entity 105 may configure or indicate whether the UE 115 is to perform channel prediction, interference prediction, or both, for a CSI report based on the UE 115 capability.
[0104] If the UE 115 can support channel prediction or interference prediction, a time restriction parameter (e.g., timeRestrictionForChannelMeasurements for CMRs or timeRestrictionForInterferenceMeasurements for IMRs) for the respective measurement may not be configured (e.g., may be set to notConfigured) . By setting the time restriction parameter notConfigured, the network entity 105 may consider transmission beams as identical across different time instances, which may enable the UE 115 to filter or combine measurements from different slots to assist channel and interference predictions for a set of beams.
[0105] Some additional techniques may be described to support a future CSI reference resource, which may be offset (e.g., in time) from a measurement CSI reference resource. The prediction CSI reference resource may be separated from the measurement CSI reference resource by an indicated slot offset. Configuring the future CSI reference resource may enable CSI parameters to be based on beam measurements which may be during or before the measurement CSI reference resource for non-predictive beam measurements and for beam prediction measurements, the measurements may be during or before the prediction CSI reference resource, which is an offset in time from the measurement CSI reference resource.
[0106] FIG. 2 illustrates an example of a wireless communications system 200 that supports timelines for time domain channel and interference predictions in accordance with various aspects of the present disclosure. In some examples, the wireless communications system 200 may implement aspects of the wireless communications system 100 or may be implemented by aspects of the wireless communications system 100. For example, the wireless communications system 200 may include a UE 115-aand a network entity 105-a, which may be examples of corresponding devices described herein. In some examples, the wireless communications system 200 may include an uplink communication link 205 from the UE 115-a to the network entity 105-a and a downlink communication link 215 from the network entity 105-a to the UE 115-a.
[0107] The UE 115-a may be configured to transmit a CSI report 230 including predicted interference measurements or predicted channel measurements, or both, based on a capability of the UE 115-a. The UE 115-a may transmit a UE capability report 210 to the network entity 105-a, and the UE 115-a and the network entity 105-a may each determine whether report quantities (e.g., parameters) for the CSI report 230 are derived based on historical measurements or generated based on predictions. For example, whether channel measurements for the CSI report 230 or interference measurements for the CSI report 230, or both, are based on prediction or historical-based measurements may be signaled (e.g., indicated) by the network entity 105-a when configuring, activating, or triggering the CSI report 230.
[0108] The UE 115-a may transmit a UE capability report 210 to the network entity 105-a regarding the capability of the UE 115-a for predicting future CMR or IMR beam measurements. For example, the UE capability report 210 may indicate that the UE 115-a supports predicting measurements based on CMRs, IMRs, or both in association with a future time instance in the time domain. For example, the UE capability report 210 may indicate that the UE 115-a supports predicting both channel and interference measurements in association with the future time instance. In some examples, the UE capability report 210 may indicate that the UE 115-a supports predicting channel measurements in association with the future time instance, but interference measurements are to be derived based on historic measurements. In some examples, the UE capability report 210 may indicate that the UE 115-a supports predicting interference measurements in association with the future time instance, but channel measurements are to be derived based on historic measurements. If the UE 115-asupports deriving measurements based on historic measurements (e.g., the UE 115-adoes not support prediction for channel measurements or interference measurements) , the measurements may be performed via an SSB or a non-zero power CSI-RS received no later than a CSI reference resource associated with the CSI report.
[0109] In some examples, the UE capability report 210 may report multiple capabilities. For example, the UE 115-a may indicate support for predicting measurements of either CMRs or IMRs, but not both. In some examples, the UE capability report 210 may include two indications, where the UE capability report 210 indicates support for channel measurements being based on predictions and interference measurement being derived based on historical measurements (e.g., prediction supported for CMRs but not IMRs) , and the UE capability report 210 indicates support for interference measurements being based on predictions and the channel measurements being derived based on historical measurements (e.g., prediction supported for IMRs but not CMRs) . In some cases, the UE 115-a may be equipped with a machine learning model that can predict L1-RSRPs of future CMR beams, but the machine learning model may not predict interference of future IMR beams (e.g., the UE 115-a may not have additional computational resources for predicting future interference) . In such cases, the UE 115-a may indicate, in the UE capability report 210, that the UE 115-a can predict CMRs and not IMRs.
[0110] The network entity 105-a may transmit a CSI report configuration 220 to the UE 115-a to indicate parameters for one or more CSI report configurations. The CSI report configuration 220 may be based on the UE capability report 210. For example, the CSI report configuration 220 may configure one or more CSI report settings at the UE 115-a. In an example, a CSI report setting may include parameters for the UE 115-ato perform beam predictions for CMRs and beam measurements (e.g., historical-based beam measurements) for IMRs based on the UE capability. In another example, a CSI report setting may include parameters for the UE 115-a to perform beam predictions for both CMRs and IMRs based on the UE capability. For example, the UE 115-a may be configured, or indicated by the network entity 105-a, to determine report quantities for a CSI report (e.g., the CSI report 230) based on historical measurements or predictions, or both, for CMRs or IMRs, if the report quantities associated with a CSI report setting for the CSI report are determined based on a predicted future time instance. In some examples, the CSI report configuration 220 may indicate whether CMR beams, IMR beams, or both should be based on predictions or historical measurements (e.g., be based on the last measurement) .
[0111] In some examples, the CSI report configuration 220 may configure the UE 115-a to predict CMR beams and not IMR beams, even if the UE capability report 210 indicates the UE 115-a is capable of predict both. For example, in some cases, in order to carry out interference predictions, the transmitted interference beams may need to be fixed across time domain occasions, which not be supported by some neighboring network entities 105 (e.g., when only CSI-inference measurement with time domain varied beamforming is used due to a limited number of resources) . As such, even though the UE capability report 210 indicated that the UE 115-a may support predicting CMRs, IMR, or both, the CSI report configuration 220 may configure the UE 115-a to only predict CMRs. Additionally, or alternatively, the UE 115-a may not be configured to perform predictions which are not indicated to be supported by the UE capability report 210.
[0112] The UE 115-a may be configured to transmit an aperiodic CSI report, a periodic CSI report, or a semi-persistent CSI report including beam predictions for CMRs or IMRs, or both, based on the UE capability. For example, for periodic or semi-periodic CSI reports, the network entity 105-a may transmit control signaling to configure a CSI report setting associated with beam predictions for CMRs or IMRs, or both. For example, the CSI report setting may indicate whether CMR beams are measured or predicted and whether IMR beams are measured or predicted. In some cases, for semi-periodic CSI reports, the network entity 105-a may indicate whether CMR beams are measured or predicted and whether IMR beams are measured or predicted via an activation message (e.g., a MAC control message or a MAC-CE) for the semi-periodic CSI report. For aperiodic CSI reports, the network entity 105-a may transmit the CSI report configuration 220 indicating parameters for a CSI report setting or an aperiodic CSI triggering state configuration associated with the CSI report setting to configure whether CMR beams or IMR beams, or both, are configured for prediction or measurement, or both. In some examples, the network entity 105-a may additionally, or alternatively, indicate whether CMR beams or IMR beams, or both, are configured for prediction or measurement, or both, via a CSI request message (e.g., DCI message) , in some cases based on indicating the aperiodic CSI triggering state for the aperiodic CSI triggering state configuration.
[0113] In some examples, the network entity 105-a may transmit signaling to request the UE 115-a to transmit a CSI report 230 carrying beam predictions for a CMR, IMR, or both. For example, the network entity 105-a may transmit a control message 225 requesting the UE 115-a to transmit a CSI report. For example, for an aperiodic CSI report, the control message 225 may be an example of a CSI report trigger, which may be transmitted via a DCI message. Similarly, for a semi-persistent CSI report, the control message 225 may be an example of a CSI activation message, which may be transmitted via a MAC message or a MAC CE. Whether the UE is to predict future CMR beams or IMR beams or whether the beam measurements for CMRs or IMRs are to be based on historic measurements may be indicated by the network entity 105-a via the CSI report configuration 220 or the control message 225, both of the CSI report configuration 220 and the control message 225.
[0114] The UE 115-a may perform measurements or generate predictions, or both, for the CSI report 230 based on the CSI report configuration 220 or the control message 225, or both. For example, the CSI report configuration 220 may configure a CSI report setting for an aperiodic CSI report. The CSI report setting may include parameters indicating that CMR beams are predicted, and IMR beams are measured, or determined based on historic measurements. The network entity 105-a may transmit a trigger message (e.g., the control message 225) , triggering the UE 115-a to transmit an aperiodic CSI report. The control message 225 may include signaling indicating the CSI report setting configured by the CSI report configuration 220, or the control message 225 may indicate that CMR beams are to be predicted and IMR beams are to be measured. Based on receiving the control message 225 triggering the aperiodic CSI report, the UE 115-a may perform predictions for CMR beams associated with a future time instance (e.g., based on a CSI reference resource for predictions) , and the UE 115-amay generate beam measurements for an IMR which is no later than a CSI reference resource associated with the aperiodic CSI report.
[0115] The UE 115-a may transmit a CSI report 230 to the network entity 105-abased on the control message 225. In generating the CSI report 230, the UE 115-a may predict channel measurements, interference measurements, or both as indicated by the CSI report configuration 220, transmitted from the network entity 105-a, based at least on the UE capability report 210, transmitted from the UE 115-a to the network entity 105-a. In some examples, the UE 115-a may predict beam measurements or generate beam measurements based on historical measurements based on the capability of the UE 115-a. In such cases, the UE 115-a may generate the respective measurements based on capabilities of the UE 115-a as indicated by the UE capability report 210.
[0116] In some examples, a CSI report setting associated with beam prediction may include parameters such that a time restriction for measurements is not configured, or is set to not be configured. Some techniques for predicting qualities of future beams may be based on using a time series of historically-determined measurements (e.g., L1-RSRPs) of the same beams as an input to a machine learning model to obtain the prediction results. To use the time series of measurements, the time restriction parameters may be set to not be configured, as having the time restriction parameter set to configured may limit the UE 115-a to using just a latest measurement resource for the prediction instead of using multiple measurements from different times.
[0117] For example, if the network entity 105-a configures the UE 115-a with a CSI report setting such that channels are to be predicted regarding a future time instance when determining the report quantities (e.g., measurements or parameter values) for the CSI report, a time restriction parameter associated with channel measurements may not be configured (e.g., set to not be configured) . For example, if a CSI report setting for the CSI report 230 indicates that the UE 115-a is to perform predictions for CMR beams when generating report quantities for the CSI report 230, a time restriction parameter (e.g., timeRestrictionForChannelMeasurements) may be set to not be configured (e.g., may be set to notConfigured) for that CSI report setting. If the network entity 105-a has configured the UE 115-a that interference is to be predicted regarding a future time instance when determining the report quantities (e.g., measurements or parameter values) for the CSI report, a time restriction parameter associated with interference measurements may not be configured (e.g., set to not be configured) . For example, if a CSI report setting for the CSI report 230 indicates that the UE 115-a is to perform predictions for IMR beams when generating report quantities for the CSI report 230, a time restriction parameter (e.g., timeRestrictionForInterferenceMeasurements) may be set to not be configured (e.g., may be set to notConfigured) for that CSI report setting.
[0118] A CSI report setting associated with historic measurements may include parameters such that the time restriction for measurements is configured or not configured. For example, if the network entity 105-a configures the UE 115-a with a CSI report setting for a CSI report such that channels are to be derived based on historic measurements for the CSI report, a time restriction parameter associated with channel measurements may be configured (e.g., set to be configured) or not configured (e.g., set not to be configured) . For example, if a CSI report setting for a CSI report 230 indicates that the UE 115-a is to derive a channel for the CSI report 230 based on historic measurements, the time restriction parameter may be set to configured or not configured for that CSI report setting. If the network entity 105-a has configured the UE 115-a that interference is to be determined based on historic measurements for the CSI report, the time restriction parameter associated with interference measurements may not be set to configured or not configured.
[0119] FIG. 3 illustrates an example of a signaling timeline 300 that supports timelines for time domain channel and interference predictions in accordance with various aspects of the present disclosure. In some examples, the signaling timeline 300 may implement aspects of the wireless communications system 100 or 200 or may be implemented by aspects of the wireless communications system 100 or 200. For example, the signaling timeline 300 may describe a timeline for a CSI report including measurement-based or prediction-based measurements CMRs or IMRs, or both, transmitted by a UE 115 to a network entity 105, which may be examples of corresponding devices described herein.
[0120] In some examples, the UE 115 may be configured with, or scheduled for, a CSI reporting slot 305 (e.g., slot n) . The CSI reporting slot 305 may be an uplink slot where the UE 115 is to transmit a CSI report. In some cases, the UE 115 may receive an indication to transmit the CSI report in slot n-nCSI_ref, where the offset nCSI_ref may provide time for the UE 115 to generate information for the CSI report and prepare for transmission of the CSI report in the CSI reporting slot 305. In some cases, the UE 115 may be configured with a pattern (e.g., periodic or semi-periodic) from the network entity 105 for transmitting the CSI report. As such, the CSI reporting slot 305 may be preconfigured according to the pattern sent to from the network entity 105. The quantities reported (e.g., beam measurements) for the CSI report may be regarding a future time instance and the measurements of the CMRs and IMRs may be based on historic measurements or predictions.
[0121] In some examples, the measurements for the CSI reporting slot 305 may be based on historic measurements 310. The historic measurements 310 (e.g., measurements of the CMRs / IMRs) may be based on a CSI reference resource 315 associated with the CSI reporting slot 305. In some examples, the historic measurements 310 may correspond to measurements performed no later than the CSI reference resource 315. In some examples, the historic measurements 310 may be based on a last channel / interference measurement before the CSI reference resource 315. In some examples, the historic measurements 310 may additionally, or alternatively, be based on one or more channel / interference measurements prior to the CSI reference resource 315.
[0122] In some examples, the measurements for the CSI reporting slot 305 may be based on predicted channel or interference measurements. For example, predicted measurements 320 (e.g., predictions of the CMRs / IMRs) may be based on a timing of a future reference resource 325, such as a CSI reference resource for time domain beam or CSI predictions. The future reference resource 325 may be configured for CSI reports carrying channel measurement predictions for interference measurement predictions. For example, the future reference resource 325 may be introduced for cases where reporting quantities of the associated CSI report, at the CSI reporting slot 305, may be predicted based on a future time instance (e.g., the future reference resource 325) .
[0123] In some cases, a time domain for the future reference resource 325 may be based on an offset 330 of npredict slots from the CSI reference resource 315. For example, the future time instance’s time domain may be based on a delay offset applied to the CSI reference resource 315, which may correspond to a time domain difference between the CSI reporting slot 305 and the slot associated with the future time instance. For example, the UE 115 may be requested to transmit a CSI report in the CSI reporting slot 305, the CSI report indicating a predicted strongest 4 L1-RSRPs of 8 NZP-CSI-RS resources based on the future reference resource 325 offset from the CSI reference resource 315 by the offset 330. In some cases, a quantity of slots for the offset 330 may be configured by the network entity 105 or indicated to the UE 115. The future reference resource 325 may be defined in the time domain based on the time domain occasion of the CSI reference resource 315 (e.g., which is based on the CSI reporting slot n) , plus a quantity of slots of the offset 330.
[0124] For example, when predicting CQI regarding the future time instance, the UE 115 may predict L1-SINR regarding a CMR and IMR pair that provides a highest L1-SINR among CMR and IMR pairs, particularly associated with the future time instance. The inputs for the L1-SINR prediction may be based on the historic measurements 310, but the UE 115 may also have determined predicted L1-SINRs associated with the future time instance (e.g., no later than the future reference resource 325) . The prediction for the L1-SINR may be based on any previous CMR and IMR measurements before the CSI reference resource 315 (e.g., not just the last measurement before the CSI reference resource 315) along with the prediction measurements within slots up to the offset 330 ahead of the CSI reference resource 315. In some cases, the predictions may be based on the previous measurements, or the previous measurements may be an input to the machine learning model to generate the measurement predictions.
[0125] In some implementations, the UE 115 may be configured or indicated by the network entity 105 to determine quantities for a CSI report based on prediction. For example, report quantities associated with a CSI report setting for the CSI report may be configured to be determined based on predicted measurements 345 of a future time instance, such as a future slot. In some examples, the UE 115 may be configured with a first configuration to predict both channel and interference measurements in association with the future time instance Future interference predictions 335 for slot n+npredict and future channel predictions 340 for slot n+npredict may be used to determine predicted measurements 345 of slot n+npredict, which may be transmitted in a CSI report during the CSI reporting slot 305.
[0126] If the network entity 105 has configured or indicated to the UE 115 that channel measurements and interference measurements are to be predicted regarding the future time instance when determining the report quantities for the CSI report (e.g., the first configuration) , time restriction parameters for channel measurements and interference measurements may be set, or assumed to be set, to not configured. For example, parameter timeRestrictionForChannelMeasurements and parameter timeRestrictionForInterferenceMeasurements may each be set to notConfigured for the corresponding CSI report setting.
[0127] In some cases, the UE 115 may be configured with a second configuration, where the future channel predictions 340 for slot n+npredict may be used along with interference measurements 350 derived based on historic measurements for the predicted measurements 345 of slot n+npredict. In such cases, the interference measurements 350 may be performed on CSI resources for interference measurement or NZP-CSI-RS received no later than the CSI reference resource 315 associated with the CSI reporting slot 305. When the UE 115 is configured with the second configuration, the timeRestrictionForInterferenceMeasurements may be set to either notConfigured or Configured for the corresponding CSI report setting, while the timeRestrictionForChannelMeasurements may be set to notConfigured.
[0128] In some cases, the UE 115 may be configured with a third configuration where the future interference predictions 335 for slot n+npredict may be used along with the channel measurements 355 derived based on historic measurements for the predicted measurement 345 of the slot n+npredict. In such cases, the channel measurements 355 derived based on historic measurements may be performed using SSBs or NZP-CSI-RS received no later than the CSI reference resource 315 associated with the CSI reporting slot 305. When the UE 115 is configured with the third configuration, the timeRestrictionForChannelMeasurements may be set to either notConfigured or Configured for the corresponding CSI report setting, while the timeRestrictionForInterferenceMeasurements may be set to notConfigured.
[0129] When generating predictions, a time series of historical measurements (e.g., L1-RSRPs) of the same beams may be used as an input for the machine learning model to get the predicted results. To support using beams across the time series (e.g., across multiple instances in time) , the network entity 105 may ensure that the beamforming of the beams is maintained to be the same. For predicting future beam qualities regarding CMRs (e.g., channel predictions for slot n+npredict) , the timeRestrictionForChannelMeasurements parameter may be set to notConfigured and for predicting future beam qualities regarding IMRs (e.g., interference predictions for slot n+npredict) , the timeRestrictionForInterferenceMeasurements parameter may be set to notConfigured. By setting the respective timeRestriction parameters to notConfigured, the beams across time domain occasions may be considered as identical and may allow for filtering or combining of beams across time domain occasions. The UE 115 and the network entity 105 may generate more accurate beam report quantities using predictions than just historic measurements, which may result in improvements in accuracy, latency, throughput, and power and overhead consumption.
[0130] FIG. 4 illustrates an example of a process flow 400 that supports timelines for time domain channel and interference prediction in accordance with one or more aspects of the present disclosure. In some examples, the process flow 400 may implement aspects of the wireless communications system 100 or 200 or may be implemented by aspects of the wireless communications system 100 or 200. For example, the process flow 400 may include a UE 115-b and a network entity 105-b, which may be examples of corresponding devices described herein.
[0131] At 405, the UE 115-b may transmit, to the network entity 105-b, a first control message indicating a capability of the UE 115-b to support beam predictions associated with CMRs, IMRs, or both. In some examples, the first control message may be an uplink control information message, an RRC message, or a MAC message. In some examples, the UE 115-b may indicate support for beam predictions associated with both CMRs and IMRs. In some examples, the UE 115-b may indicate support for beam predictions associated with CMRs but not IMRs. In some examples, the UE 115-b may indicate support for beam predictions associated with IMRs but not CMRs.
[0132] At 410, in some examples, the UE 115-b may receive, from the network entity 105-b, RRC signaling indicating a slot offset between a first slot for a CSI report and a prediction reference resource during a future slot. In some examples, a future reference resource described herein may be an example of the prediction reference resource. In some examples, a predicted CSI measurement may be based on the prediction reference resource. In some cases, the prediction reference resource during the future slot may be offset from a measurement reference resource in time by the slot offset indicated by the RRC signaling. For example, the prediction reference resources may be offset from the measurement reference resource by npredict slots.
[0133] At 415, the UE 115-b may receive, from the network entity 105-b, a second control message indicating a set of parameters for the CSI report for the beam prediction associated with the CMRs, IMRs, or both, based on the capability of the UE 115-b. For example, the second control message may configure one or more CSI report settings at the UE 115-b. The CSI report settings may include one or more parameters indicating whether channel measurements are associated with predictions or historically-based measurements. Additionally, or alternatively, the CSI report settings may include one or more parameters indicating whether interference measurements are associated with predictions or historically-based measurements.
[0134] In some cases, the UE 115-b may receive an RRC message indicating that a time restriction is not configured for channel measurements, interference measurements, or both, based at least on the set of parameters for the CSI report. In some examples, predicting CSI measurements associated with the CMRs may be based at least on a time restriction for channel measurements not being configured. For example, the time restriction may be explicitly configured to be not configured when channel measurements are associated with predictions, or the time restriction may be implicitly not configured based on the channel measurements being associated with predictions. In some examples, predicting CSI measurements associated with the IMRs may be based on a time restriction for interference measurements not being configured.
[0135] In some cases, the UE 115-b may receive a RRC message indicating one or more sets of parameters for predicted measurements associated with the CMRs, IMRs, or both, based on the capability of the UE 115-b. In some examples, the second control message may indicate the set of parameters for the CSI report from the one or more sets of parameters. For example, the RRC message may configure one or more CSI report settings at the UE 115-b, and the network entity 105-b may transmit the second control message to activate or trigger a CSI report in accordance with one of the CSI report settings.
[0136] For example, the UE 115-b may receive, from the network entity 105-b, the second control message as an RRC message configuring a periodic CSI report in accordance with the set of parameters for a CSI report. In some cases, the CSI report may be the periodic CSI report.
[0137] In some other examples, the UE 115-b may receive, from the network entity 105-b, the second control message as a MAC-CE message activating a semi-persistent CSI report in accordance with the set of parameters for a CSI report. For example, the network entity 105-b may configure one or more CSI report settings at the UE 115-b via higher layer signaling (e.g., RRC signaling) , and the second control message may indicate one of the CSI report settings to activate for the semi-persistent CSI report. In some cases, the CSI report may be the semi-persistent CSI report.
[0138] In another example, the UE 115-b may receive, from the network entity 105-b, a MAC-CE message or a DCI message triggering an aperiodic CSI report in accordance with the set of parameters for a CSI report. For example, the network entity 105-b may configure one or more CSI report settings at the UE 115-b via higher layer signaling (e.g., RRC signaling) , and the second control message may trigger an aperiodic CSI report in accordance with one of the CSI report settings. In some cases, the CSI report may be the aperiodic CSI report.
[0139] At 420, the UE 115-b may transmit, to the network entity 105-b the CSI report indicating predicted CSI measurements for a set of beams during the future slot, based on the set of parameters for the CSI report. In some examples, the predicted CSI measurements may be based on predicted measurements of CMRs or interference measurements of IMRs, both of which may be during or prior to the future slot in time. In some other examples, the predicted CSI measurements may include a predicted channel quality indicator, a predicted rank indicator, a predicted precoder matrix indicator, or any combination thereof, for the set of beams during the future slot.
[0140] FIG. 5 shows a block diagram 500 of a device 505 that supports timelines for time domain channel and interference prediction 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 may also include a processor (not shown) . Each of these components may be in communication with one another (e.g., via one or more buses) .
[0141] 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 timelines for time domain channel and interference prediction) . 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.
[0142] 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 timelines for time domain channel and interference prediction) . 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.
[0143] 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 timelines for time domain channel and interference prediction as described herein. For example, the communications manager 520, the receiver 510, the transmitter 515, or various combinations or components thereof may support a method for performing one or more of the functions described herein.
[0144] 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 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 a means for performing the functions described in the present disclosure. In some examples, a processor and memory coupled with the processor may be configured to perform one or more of the functions described herein (e.g., by executing, by the processor, instructions stored in the memory) .
[0145] Additionally, or alternatively, in some examples, 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 a processor. If implemented in code executed by a 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 a means for performing the functions described in the present disclosure) .
[0146] 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 in combination with the receiver 510, the transmitter 515, or both to obtain information, output information, or perform various other operations as described herein.
[0147] The communications manager 520 may support wireless communications at a UE in accordance with examples as disclosed herein. For example, the communications manager 520 may be configured as or otherwise support a means for transmitting a first control message indicating a capability of the UE to support beam prediction associated with CMRs or IMRs, or both. The communications manager 520 may be configured as or otherwise support a means for receiving a second control message indicating a set of parameters for a CSI report for the beam prediction associated with the CMRs or the IMRs, or both, based on the capability of the UE. The communications manager 520 may be configured as or otherwise support a means for transmitting the CSI report indicating predicted CSI measurements for a set of beams during a future slot based on the set of parameters.
[0148] By including or configuring the communications manager 520 in accordance with examples as described herein, the device 505 (e.g., a processor controlling or otherwise coupled with the receiver 510, the transmitter 515, the communications manager 520, or a combination thereof) may support techniques for power consumption reduction and overhead reduction by utilizing prediction for channel measurements or interference measurements, or both. These techniques may provide a timeline to perform channel measurement predictions or interference measurement predictions, which may improve reliability for CSI reports carrying channel predictions or interference predictions, thereby reducing overhead and power consumption from measurement-based CSI reports.
[0149] FIG. 6 shows a block diagram 600 of a device 605 that supports timelines for time domain channel and interference prediction 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 may also include a processor (not shown) . Each of these components may be in communication with one another (e.g., via one or more buses) .
[0150] 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 timelines for time domain channel and interference prediction) . 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.
[0151] 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 timelines for time domain channel and interference prediction) . 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.
[0152] The device 605, or various components thereof, may be an example of means for performing various aspects of timelines for time domain channel and interference prediction as described herein. For example, the communications manager 620 may include a prediction capability indicating component 625, a predictive CSI request component 630, a predictive CSI report 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.
[0153] The communications manager 620 may support wireless communications at a UE in accordance with examples as disclosed herein. The prediction capability indicating component 625 may be configured as or otherwise support a means for transmitting a first control message indicating a capability of the UE to support beam prediction associated with CMRs or IMRs, or both. The predictive CSI request component 630 may be configured as or otherwise support a means for receiving a second control message indicating a set of parameters for a CSI report for the beam prediction associated with the CMRs or the IMRs, or both, based on the capability of the UE. The predictive CSI report component 635 may be configured as or otherwise support a means for transmitting the CSI report indicating predicted CSI measurements for a set of beams during a future slot based on the set of parameters.
[0154] FIG. 7 shows a block diagram 700 of a communications manager 720 that supports timelines for time domain channel and interference prediction 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 timelines for time domain channel and interference prediction as described herein. For example, the communications manager 720 may include a prediction capability indicating component 725, a predictive CSI request component 730, a predictive CSI report component 735, a reference resource offset component 740, a CSI measurement prediction component 745, a time restriction configuration component 750, or any combination thereof. Each of these components may communicate, directly or indirectly, with one another (e.g., via one or more buses) .
[0155] The communications manager 720 may support wireless communications at a UE in accordance with examples as disclosed herein. The prediction capability indicating component 725 may be configured as or otherwise support a means for transmitting a first control message indicating a capability of the UE to support beam prediction associated with CMRs or IMRs, or both. The predictive CSI request component 730 may be configured as or otherwise support a means for receiving a second control message indicating a set of parameters for a CSI report for the beam prediction associated with the CMRs or the IMRs, or both, based on the capability of the UE. The predictive CSI report component 735 may be configured as or otherwise support a means for transmitting the CSI report indicating predicted CSI measurements for a set of beams during a future slot based on the set of parameters.
[0156] In some examples, the reference resource offset component 740 may be configured as or otherwise support a means for receiving radio resource control signaling indicating a slot offset between a first slot for the CSI report and a prediction reference resource during the future slot, where the predicted CSI measurements are based on the prediction reference resource.
[0157] In some examples, the prediction reference resource during the future slot is offset from a measurement reference resource in time by the slot offset.
[0158] In some examples, the CSI measurement prediction component 745 may be configured as or otherwise support a means for predicting CSI measurements associated with the CMRs based on a time restriction for channel measurements not being configured.
[0159] In some examples, the CSI measurement prediction component 745 may be configured as or otherwise support a means for predicting CSI measurements associated with the IMRs based on a time restriction for interference measurements not being configured.
[0160] In some examples, the time restriction configuration component 750 may be configured as or otherwise support a means for receiving a radio resource control message indicating that a time restriction is not configured for channel measurements or interference measurements, or both, based on the set of parameters.
[0161] In some examples, the time restriction configuration component 750 may be configured as or otherwise support a means for receiving a radio resource control message indicating one or more sets of parameters for predicted measurements associated with the CMRs or the IMRs, or both, based on the capability of the UE, where the second control message indicates the set of parameters from the one or more sets of parameters.
[0162] In some examples, to support receiving the second control message, the predictive CSI request component 730 may be configured as or otherwise support a means for receiving a radio resource control message configuring a periodic CSI report in accordance with the set of parameters, where the CSI report is the periodic CSI report.
[0163] In some examples, to support receiving the second control message, the predictive CSI request component 730 may be configured as or otherwise support a means for receiving a medium access control message activating a semi-persistent CSI report in accordance with the set of parameters, where the CSI report is the semi-persistent CSI report.
[0164] In some examples, to support receiving the second control message, the predictive CSI request component 730 may be configured as or otherwise support a means for receiving a medium access control message triggering an aperiodic CSI report in accordance with the set of parameters, where the CSI report is the aperiodic CSI report.
[0165] In some examples, the predicted CSI measurements are based on predicted channel measurements of the CMRs or interference measurements of the IMRs which are during or prior to the future slot in time.
[0166] In some examples, the predicted CSI measurements include a predicted channel quality indicator, a predicted rank indicator, a predicted precoder matrix indication, or any combination thereof, for the set of beams during the future slot.
[0167] FIG. 8 shows a diagram of a system 800 including a device 805 that supports timelines for time domain channel and interference prediction 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, a memory 830, code 835, and a 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) .
[0168] 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 or another known 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 a processor, such as the 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.
[0169] 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 may represent 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.
[0170] The memory 830 may include random access memory (RAM) and read-only memory (ROM) . The memory 830 may store computer-readable, computer-executable code 835 including instructions that, when executed by the 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 processor 840 but may cause a computer (e.g., when compiled and executed) to perform functions described herein. In some cases, the memory 830 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.
[0171] The 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 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 processor 840. The processor 840 may be configured to execute computer-readable instructions stored in a memory (e.g., the memory 830) to cause the device 805 to perform various functions (e.g., functions or tasks supporting timelines for time domain channel and interference prediction) . For example, the device 805 or a component of the device 805 may include a processor 840 and memory 830 coupled with or to the processor 840, the processor 840 and memory 830 configured to perform various functions described herein.
[0172] The communications manager 820 may support wireless communications at a UE in accordance with examples as disclosed herein. For example, the communications manager 820 may be configured as or otherwise support a means for transmitting a first control message indicating a capability of the UE to support beam prediction associated with CMRs or IMRs, or both. The communications manager 820 may be configured as or otherwise support a means for receiving a second control message indicating a set of parameters for a CSI report for the beam prediction associated with the CMRs or the IMRs, or both, based on the capability of the UE. The communications manager 820 may be configured as or otherwise support a means for transmitting the CSI report indicating predicted CSI measurements for a set of beams during a future slot based on the set of parameters.
[0173] By including or configuring the communications manager 820 in accordance with examples as described herein, the device 805 may support techniques for reducing power and reducing overhead by utilizing prediction for channel measurements or interference measurements, or both. These techniques may provide a timeline to perform channel measurement predictions or interference measurement predictions, which may improve reliability for CSI reports carrying channel predictions or interference predictions, thereby reducing overhead and power consumption from measurement-based CSI reports. 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 processor 840, the memory 830, the code 835, or any combination thereof. For example, the code 835 may include instructions executable by the processor 840 to cause the device 805 to perform various aspects of timelines for time domain channel and interference prediction as described herein, or the processor 840 and the memory 830 may be otherwise configured to perform or support such operations.
[0174] FIG. 9 shows a block diagram 900 of a device 905 that supports timelines for time domain channel and interference prediction 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 may also include a processor (not shown) . Each of these components may be in communication with one another (e.g., via one or more buses) .
[0175] 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.
[0176] 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.
[0177] 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 timelines for time domain channel and interference prediction as described herein. For example, the communications manager 920, the receiver 910, the transmitter 915, or various combinations or components thereof may support a method for performing one or more of the functions described herein.
[0178] 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 include 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 a means for performing the functions described in the present disclosure. In some examples, a processor and memory coupled with the processor may be configured to perform one or more of the functions described herein (e.g., by executing, by the processor, instructions stored in the memory) .
[0179] Additionally, or alternatively, in some examples, 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 a processor. If implemented in code executed by a 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 a means for performing the functions described in the present disclosure) .
[0180] 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.
[0181] The communications manager 920 may support wireless communications at a network entity in accordance with examples as disclosed herein. For example, the communications manager 920 may be configured as or otherwise support a means for receiving a first control message indicating a capability of a UE to support beam prediction associated with CMRs or IMRs, or both. The communications manager 920 may be configured as or otherwise support a means for transmitting a second control message indicating a set of parameters for a CSI report for the beam prediction associated with the CMRs or the IMRs, or both, based on the capability of the UE. The communications manager 920 may be configured as or otherwise support a means for receiving the CSI report indicating predicted CSI measurements for a set of beams during a future slot based on the set of parameters.
[0182] By including or configuring the communications manager 920 in accordance with examples as described herein, the device 905 (e.g., a processor controlling or otherwise coupled with the receiver 910, the transmitter 915, the communications manager 920, or a combination thereof) may support techniques for reducing power and processing overhead by utilizing prediction for channel measurements or interference measurements, or both. These techniques may provide a timeline to perform channel measurement predictions or interference measurement predictions, which may improve reliability for CSI reports carrying channel predictions or interference predictions, thereby reducing overhead and power consumption from measurement-based CSI reports.
[0183] FIG. 10 shows a block diagram 1000 of a device 1005 that supports timelines for time domain channel and interference prediction 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 may also include a processor (not shown) . Each of these components may be in communication with one another (e.g., via one or more buses) .
[0184] 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 1010 may 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.
[0185] 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.
[0186] The device 1005, or various components thereof, may be an example of means for performing various aspects of timelines for time domain channel and interference prediction as described herein. For example, the communications manager 1020 may include a prediction capability indication component 1025, a CSI requesting component 1030, a CSI report reception component 1035, 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.
[0187] The communications manager 1020 may support wireless communications at a network entity in accordance with examples as disclosed herein. The prediction capability indication component 1025 may be configured as or otherwise support a means for receiving a first control message indicating a capability of a UE to support beam prediction associated with CMRs or IMRs, or both. The CSI requesting component 1030 may be configured as or otherwise support a means for transmitting a second control message indicating a set of parameters for a CSI report for the beam prediction associated with the CMRs or the IMRs, or both, based on the capability of the UE. The CSI report reception component 1035 may be configured as or otherwise support a means for receiving the CSI report indicating predicted CSI measurements for a set of beams during a future slot based on the set of parameters.
[0188] FIG. 11 shows a block diagram 1100 of a communications manager 1120 that supports timelines for time domain channel and interference prediction 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 timelines for time domain channel and interference prediction as described herein. For example, the communications manager 1120 may include a prediction capability indication component 1125, a CSI requesting component 1130, a CSI report reception component 1135, an offset indicating component 1140, a time restriction configuring component 1145, or any combination thereof. Each of these components 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 virtualized component associated with a network entity 105, between devices, components, or virtualized components associated with a network entity 105) , or any combination thereof.
[0189] The communications manager 1120 may support wireless communications at a network entity in accordance with examples as disclosed herein. The prediction capability indication component 1125 may be configured as or otherwise support a means for receiving a first control message indicating a capability of a UE to support beam prediction associated with CMRs or IMRs, or both. The CSI requesting component 1130 may be configured as or otherwise support a means for transmitting a second control message indicating a set of parameters for a CSI report for the beam prediction associated with the CMRs or the IMRs, or both, based on the capability of the UE. The CSI report reception component 1135 may be configured as or otherwise support a means for receiving the CSI report indicating predicted CSI measurements for a set of beams during a future slot based on the set of parameters.
[0190] In some examples, the offset indicating component 1140 may be configured as or otherwise support a means for transmitting radio resource control signaling indicating a slot offset between a first slot for the CSI report and a prediction reference resource during the future slot, where the predicted CSI measurements are based on the prediction reference resource.
[0191] In some examples, the prediction reference resource during the future slot is offset from a measurement reference resource in time by the slot offset.
[0192] In some examples, the time restriction configuring component 1145 may be configured as or otherwise support a means for transmitting a radio resource control message indicating that a time restriction is not configured for channel measurements or interference measurements, or both, based on the set of parameters.
[0193] In some examples, the time restriction configuring component 1145 may be configured as or otherwise support a means for transmitting a radio resource control message indicating one or more sets of parameters for predicted measurements associated with the CMRs or the IMRs, or both, based on the capability of the UE, where the second control message indicates the set of parameters from the one or more sets of parameters.
[0194] In some examples, to support transmitting the second control message, the CSI requesting component 1130 may be configured as or otherwise support a means for transmitting a radio resource control message configuring a periodic CSI report in accordance with the set of parameters, where the CSI report is the periodic CSI report.
[0195] In some examples, to support transmitting the second control message, the CSI requesting component 1130 may be configured as or otherwise support a means for transmitting a medium access control message activating a semi-persistent CSI report in accordance with the set of parameters, where the CSI report is the semi-persistent CSI report.
[0196] In some examples, to support transmitting the second control message, the CSI requesting component 1130 may be configured as or otherwise support a means for transmitting a medium access control message triggering an aperiodic CSI report in accordance with the set of parameters, where the CSI report is the aperiodic CSI report.
[0197] In some examples, the predicted CSI measurements are based on predicted channel measurements of the CMRs or interference measurements of the IMRs which are during or prior to the future slot in time.
[0198] In some examples, the predicted CSI measurements include a predicted channel quality indicator, a predicted rank indicator, a predicted precoder matrix indication, or any combination thereof, for the set of beams during the future slot.
[0199] FIG. 12 shows a diagram of a system 1200 including a device 1205 that supports timelines for time domain channel and interference prediction 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, a memory 1225, code 1230, and a 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) .
[0200] 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 bi-directionally 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 memory components that are operable to perform or support operations based 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 memory components (for example, the processor 1235, or the 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 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) .
[0201] The memory 1225 may include RAM and ROM. The memory 1225 may store computer-readable, computer-executable code 1230 including instructions that, when executed by the 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 memory or another type of memory. In some cases, the code 1230 may not be directly executable by the processor 1235 but may cause a computer (e.g., when compiled and executed) to perform functions described herein. In some cases, the 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.
[0202] The 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 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 the processor 1235. The processor 1235 may be configured to execute computer-readable instructions stored in a memory (e.g., the memory 1225) to cause the device 1205 to perform various functions (e.g., functions or tasks supporting timelines for time domain channel and interference prediction) . For example, the device 1205 or a component of the device 1205 may include a processor 1235 and memory 1225 coupled with the processor 1235, the processor 1235 and memory 1225 configured to perform various functions described herein. The 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 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 the memory 1225) . In some implementations, the processor 1235 may be a component of a processing system. A processing system may generally refer to a system or series of machines or components that receives inputs and processes the inputs to produce a set of outputs (which may be passed to other systems or components of, for example, the device 1205) . For example, a processing system of the device 1205 may refer to a system including the various other components or subcomponents of the device 1205, such as the processor 1235, or the transceiver 1210, or the communications manager 1220, or other components or combinations of components of the device 1205. The processing system of the device 1205 may interface with other components of the device 1205, and may process information received from other components (such as inputs or signals) or output information to other components. For example, a chip or modem of the device 1205 may include a processing system and one or more interfaces to output information, or to obtain information, or both. The one or more interfaces may be implemented as or otherwise include a first interface configured to output information and a second interface configured to obtain information, or a same interface configured to output information and to obtain information, among other implementations. In some implementations, the one or more interfaces may refer to an interface between the processing system of the chip or modem and a transmitter, such that the device 1205 may transmit information output from the chip or modem. Additionally, or alternatively, in some implementations, the one or more interfaces may refer to an interface between the processing system of the chip or modem and a receiver, such that the device 1205 may obtain information or signal inputs, and the information may be passed to the processing system. A person having ordinary skill in the art will readily recognize that a first interface also may obtain information or signal inputs, and a second interface also may output information or signal outputs.
[0203] 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 memory 1225, the code 1230, and the processor 1235 may be located in one of the different components or divided between different components) .
[0204] 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.
[0205] The communications manager 1220 may support wireless communications at a network entity in accordance with examples as disclosed herein. For example, the communications manager 1220 may be configured as or otherwise support a means for receiving a first control message indicating a capability of a UE to support beam prediction associated with CMRs or IMRs, or both. The communications manager 1220 may be configured as or otherwise support a means for transmitting a second control message indicating a set of parameters for a CSI report for the beam prediction associated with the CMRs or the IMRs, or both, based on the capability of the UE. The communications manager 1220 may be configured as or otherwise support a means for receiving the CSI report indicating predicted CSI measurements for a set of beams during a future slot based on the set of parameters.
[0206] By including or configuring the communications manager 1220 in accordance with examples as described herein, the device 1205 may support techniques for reducing power and processing overhead by utilizing prediction for channel measurements or interference measurements, or both. These techniques may provide a timeline to perform channel measurement predictions or interference measurement predictions, which may improve reliability for CSI reports carrying channel predictions or interference predictions, thereby reducing overhead and power consumption from measurement-based CSI reports.
[0207] 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, the processor 1235, the memory 1225, the code 1230, or any combination thereof. For example, the code 1230 may include instructions executable by the processor 1235 to cause the device 1205 to perform various aspects of timelines for time domain channel and interference prediction as described herein, or the processor 1235 and the memory 1225 may be otherwise configured to perform or support such operations.
[0208] FIG. 13 shows a flowchart illustrating a method 1300 that supports timelines for time domain channel and interference prediction 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 method 1300 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 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.
[0209] At 1305, the method may include transmitting a first control message indicating a capability of the UE to support beam prediction associated with channel measurement resources or interference measurement resources, or both. The operations of 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 prediction capability indicating component 725 as described with reference to FIG. 7.
[0210] At 1310, the method may include receiving a second control message indicating a set of parameters for a channel state information report for the beam prediction associated with the channel measurement resources or the interference measurement resources, or both, based at least in part on the capability of the UE. The operations of 1310 may be performed in accordance with examples as disclosed herein. In some examples, aspects of the operations of 1310 may be performed by a predictive CSI request component 730 as described with reference to FIG. 7.
[0211] At 1315, the method may include transmitting the channel state information report indicating predicted channel state information measurements for a set of beams during a future slot based at least in part on the set of parameters. The operations of 1315 may be performed in accordance with examples as disclosed herein. In some examples, aspects of the operations of 1315 may be performed by a predictive CSI report component 735 as described with reference to FIG. 7.
[0212] FIG. 14 shows a flowchart illustrating a method 1400 that supports timelines for time domain channel and interference prediction 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 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.
[0213] At 1405, the method may include transmitting a first control message indicating a capability of the UE to support beam prediction associated with channel measurement resources or interference measurement resources, or both. The operations of 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 prediction capability indicating component 725 as described with reference to FIG. 7.
[0214] At 1410, the method may include receiving radio resource control signaling indicating a slot offset between a first slot for the channel state information report and a prediction reference resource during the future slot, where the predicted channel state information measurements are based at least in part on the prediction reference resource. The operations of 1410 may be performed in accordance with examples as disclosed herein. In some examples, aspects of the operations of 1410 may be performed by a reference resource offset component 740 as described with reference to FIG. 7.
[0215] At 1415, the method may include receiving a second control message indicating a set of parameters for a channel state information report for the beam prediction associated with the channel measurement resources or the interference measurement resources, or both, based at least in part on the capability of the UE. The operations of 1415 may be performed in accordance with examples as disclosed herein. In some examples, aspects of the operations of 1415 may be performed by a predictive CSI request component 730 as described with reference to FIG. 7.
[0216] At 1420, the method may include transmitting the channel state information report indicating predicted channel state information measurements for a set of beams during a future slot based at least in part on the set of parameters. The operations of 1420 may be performed in accordance with examples as disclosed herein. In some examples, aspects of the operations of 1420 may be performed by a predictive CSI report component 735 as described with reference to FIG. 7.
[0217] FIG. 15 shows a flowchart illustrating a method 1500 that supports timelines for time domain channel and interference prediction in accordance with one or more aspects of the present disclosure. The operations of the method 1500 may be implemented by a network entity or its components as described herein. For example, the operations of the method 1500 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.
[0218] At 1505, the method may include receiving a first control message indicating a capability of a UE to support beam prediction associated with channel measurement resources or interference measurement resources, or both. The operations of 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 prediction capability indication component 1125 as described with reference to FIG. 11.
[0219] At 1510, the method may include transmitting a second control message indicating a set of parameters for a channel state information report for the beam prediction associated with the channel measurement resources or the interference measurement resources, or both, based at least in part on the capability of the UE. The operations of 1510 may be performed in accordance with examples as disclosed herein. In some examples, aspects of the operations of 1510 may be performed by a CSI requesting component 1130 as described with reference to FIG. 11.
[0220] At 1515, the method may include receiving the channel state information report indicating predicted channel state information measurements for a set of beams during a future slot based at least in part on the set of parameters. The operations of 1515 may be performed in accordance with examples as disclosed herein. In some examples, aspects of the operations of 1515 may be performed by a CSI report reception component 1135 as described with reference to FIG. 11.
[0221] FIG. 16 shows a flowchart illustrating a method 1600 that supports timelines for time domain channel and interference prediction in accordance with one or more aspects of the 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.
[0222] At 1605, the method may include receiving a first control message indicating a capability of a UE to support beam prediction associated with channel measurement resources or interference measurement resources, or both. The operations of 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 prediction capability indication component 1125 as described with reference to FIG. 11.
[0223] At 1610, the method may include transmitting radio resource control signaling indicating a slot offset between a first slot for the channel state information report and a prediction reference resource during the future slot, where the predicted channel state information measurements are based at least in part on the prediction reference resource. The operations of 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 offset indicating component 1140 as described with reference to FIG. 11.
[0224] At 1615, the method may include transmitting a second control message indicating a set of parameters for a channel state information report for the beam prediction associated with the channel measurement resources or the interference measurement resources, or both, based at least in part on the capability of the UE. The operations of 1615 may be performed in accordance with examples as disclosed herein. In some examples, aspects of the operations of 1615 may be performed by a CSI requesting component 1130 as described with reference to FIG. 11.
[0225] At 1620, the method may include receiving the channel state information report indicating predicted channel state information measurements for a set of beams during a future slot based at least in part on the set of parameters. The operations of 1620 may be performed in accordance with examples as disclosed herein. In some examples, aspects of the operations of 1620 may be performed by a CSI report reception component 1135 as described with reference to FIG. 11.
[0226] The following provides an overview of aspects of the present disclosure:
[0227] Aspect 1: A method for wireless communications at a UE, comprising: transmitting a first control message indicating a capability of the UE to support beam prediction associated with channel measurement resources or interference measurement resources, or both; receiving a second control message indicating a set of parameters for a channel state information report for the beam prediction associated with the channel measurement resources or the interference measurement resources, or both, based at least in part on the capability of the UE; and transmitting the channel state information report indicating predicted channel state information measurements for a set of beams during a future slot based at least in part on the set of parameters.
[0228] Aspect 2: The method of aspect 1, further comprising: receiving radio resource control signaling indicating a slot offset between a first slot for the channel state information report and a prediction reference resource during the future slot, wherein the predicted channel state information measurements are based at least in part on the prediction reference resource.
[0229] Aspect 3: The method of aspect 2, wherein the prediction reference resource during the future slot is offset from a measurement reference resource in time by the slot offset.
[0230] Aspect 4: The method of any of aspects 1 through 3, further comprising: predicting channel state information measurements associated with the channel measurement resources based at least in part on a time restriction for channel measurements not being configured.
[0231] Aspect 5: The method of any of aspects 1 through 4, further comprising: predicting channel state information measurements associated with the interference measurement resources based at least in part on a time restriction for interference measurements not being configured.
[0232] Aspect 6: The method of any of aspects 1 through 5, further comprising: receiving a radio resource control message indicating that a time restriction is not configured for channel measurements or interference measurements, or both, based at least in part on the set of parameters.
[0233] Aspect 7: The method of any of aspects 1 through 6, further comprising: receiving a radio resource control message indicating one or more sets of parameters for predicted measurements associated with the channel measurement resources or the interference measurement resources, or both, based at least in part on the capability of the UE, wherein the second control message indicates the set of parameters from the one or more sets of parameters.
[0234] Aspect 8: The method of any of aspects 1 through 7, wherein receiving the second control message comprises: receiving a radio resource control message configuring a periodic channel state information report in accordance with the set of parameters, wherein the channel state information report is the periodic channel state information report.
[0235] Aspect 9: The method of any of aspects 1 through 8, wherein receiving the second control message comprises: receiving a medium access control message activating a semi-persistent channel state information report in accordance with the set of parameters, wherein the channel state information report is the semi-persistent channel state information report.
[0236] Aspect 10: The method of any of aspects 1 through 9, wherein receiving the second control message comprises: receiving a medium access control message triggering an aperiodic channel state information report in accordance with the set of parameters, wherein the channel state information report is the aperiodic channel state information report.
[0237] Aspect 11: The method of any of aspects 1 through 10, wherein the predicted channel state information measurements are based at least in part on predicted channel measurements of the channel measurement resources or interference measurements of the interference measurement resources which are during or prior to the future slot in time.
[0238] Aspect 12: The method of any of aspects 1 through 11, wherein the predicted channel state information measurements include a predicted channel quality indicator, a predicted rank indicator, a predicted precoder matrix indication, or any combination thereof, for the set of beams during the future slot.
[0239] Aspect 13: A method for wireless communications at a network entity, comprising: receiving a first control message indicating a capability of a UE to support beam prediction associated with channel measurement resources or interference measurement resources, or both; transmitting a second control message indicating a set of parameters for a channel state information report for the beam prediction associated with the channel measurement resources or the interference measurement resources, or both, based at least in part on the capability of the UE; and receiving the channel state information report indicating predicted channel state information measurements for a set of beams during a future slot based at least in part on the set of parameters.
[0240] Aspect 14: The method of aspect 13, further comprising: transmitting radio resource control signaling indicating a slot offset between a first slot for the channel state information report and a prediction reference resource during the future slot, wherein the predicted channel state information measurements are based at least in part on the prediction reference resource.
[0241] Aspect 15: The method of aspect 14, wherein the prediction reference resource during the future slot is offset from a measurement reference resource in time by the slot offset.
[0242] Aspect 16: The method of any of aspects 13 through 15, further comprising: transmitting a radio resource control message indicating that a time restriction is not configured for channel measurements or interference measurements, or both, based at least in part on the set of parameters.
[0243] Aspect 17: The method of any of aspects 13 through 16, further comprising: transmitting a radio resource control message indicating one or more sets of parameters for predicted measurements associated with the channel measurement resources or the interference measurement resources, or both, based at least in part on the capability of the UE, wherein the second control message indicates the set of parameters from the one or more sets of parameters.
[0244] Aspect 18: The method of any of aspects 13 through 17, wherein transmitting the second control message comprises: transmitting a radio resource control message configuring a periodic channel state information report in accordance with the set of parameters, wherein the channel state information report is the periodic channel state information report.
[0245] Aspect 19: The method of any of aspects 13 through 18, wherein transmitting the second control message comprises: transmitting a medium access control message activating a semi-persistent channel state information report in accordance with the set of parameters, wherein the channel state information report is the semi-persistent channel state information report.
[0246] Aspect 20: The method of any of aspects 13 through 19, wherein transmitting the second control message comprises: transmitting a medium access control message triggering an aperiodic channel state information report in accordance with the set of parameters, wherein the channel state information report is the aperiodic channel state information report.
[0247] Aspect 21: The method of any of aspects 13 through 20, wherein the predicted channel state information measurements are based at least in part on predicted channel measurements of the channel measurement resources or interference measurements of the interference measurement resources which are during or prior to the future slot in time.
[0248] Aspect 22: The method of any of aspects 13 through 21, wherein the predicted channel state information measurements include a predicted channel quality indicator, a predicted rank indicator, a predicted precoder matrix indication, or any combination thereof, for the set of beams during the future slot.
[0249] Aspect 23: An apparatus for wireless communications at a UE, comprising a processor; and a memory coupled with the processor, with instructions stored in the memory, the instructions being executable by the processor to cause the apparatus to perform a method of any of aspects 1 through 12.
[0250] Aspect 24: An apparatus for wireless communications at a UE, comprising at least one means for performing a method of any of aspects 1 through 12.
[0251] Aspect 25: A non-transitory computer-readable medium storing code for wireless communications at a UE, the code comprising instructions executable by a processor to perform a method of any of aspects 1 through 12.
[0252] Aspect 26: An apparatus for wireless communications at a network entity, comprising a processor; and a memory coupled with the processor, with instructions stored in the memory, the instructions being executable by the processor to cause the apparatus to perform a method of any of aspects 13 through 22.
[0253] Aspect 27: An apparatus for wireless communications at a network entity, comprising at least one means for performing a method of any of aspects 13 through 22.
[0254] Aspect 28: A non-transitory computer-readable medium storing code for wireless communications at a network entity, the code comprising instructions executable by a processor to perform a method of any of aspects 13 through 22.
[0255] It should be noted that the methods described herein describe possible implementations, and that 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.
[0256] 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.
[0257] 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.
[0258] 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) .
[0259] 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 appended 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.
[0260] 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 may be 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.
[0261] As used herein, including in the claims, “or” as used in a list of items (e.g., a list of items prefaced by a phrase such as “at least one of” or “one or more of” ) indicates an inclusive list such that, for example, a list of at least one of A, B, or C means A or B or C or AB or AC or BC or ABC (i.e., A and B and C) . Also, as used herein, the phrase “based on” shall not be construed as a reference to a closed set of conditions. For example, an example step that is described as “based on condition A” may be based on both a condition A and a condition B without departing from the scope of the present disclosure. In other words, as used herein, the phrase “based on” shall be construed in the same manner as the phrase “based at least in part on. ”
[0262] 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.
[0263] In the appended 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.
[0264] The description set forth herein, in connection with the appended 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 “example” used herein means “serving as an example, instance, or illustration, ” and not “preferred” or “advantageous over other examples. ” The detailed description includes specific details for the purpose of providing an understanding of the described techniques. These techniques, however, may be practiced without these specific details. In some instances, known structures and devices are shown in block diagram form in order to avoid obscuring the concepts of the described examples.
[0265] 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
1.A method for wireless communications at a user equipment (UE) , comprising:transmitting a first control message indicating a capability of the UE to support beam prediction associated with channel measurement resources or interference measurement resources, or both;receiving a second control message indicating a set of parameters for a channel state information report for the beam prediction associated with the channel measurement resources or the interference measurement resources, or both, based at least in part on the capability of the UE; andtransmitting the channel state information report indicating predicted channel state information measurements for a set of beams during a future slot based at least in part on the set of parameters.2.The method of claim 1, further comprising:receiving radio resource control signaling indicating a slot offset between a first slot for the channel state information report and a prediction reference resource during the future slot, wherein the predicted channel state information measurements are based at least in part on the prediction reference resource.3.The method of claim 2, wherein the prediction reference resource during the future slot is offset from a measurement reference resource in time by the slot offset.4.The method of claim 1, further comprising:predicting channel state information measurements associated with the channel measurement resources based at least in part on a time restriction for channel measurements not being configured.5.The method of claim 1, further comprising:predicting channel state information measurements associated with the interference measurement resources based at least in part on a time restriction for interference measurements not being configured.6.The method of claim 1, further comprising:receiving a radio resource control message indicating that a time restriction is not configured for channel measurements or interference measurements, or both, based at least in part on the set of parameters.7.The method of claim 1, further comprising:receiving a radio resource control message indicating one or more sets of parameters for predicted measurements associated with the channel measurement resources or the interference measurement resources, or both, based at least in part on the capability of the UE, wherein the second control message indicates the set of parameters from the one or more sets of parameters.8.The method of claim 1, wherein receiving the second control message comprises:receiving a radio resource control message configuring a periodic channel state information report in accordance with the set of parameters, wherein the channel state information report is the periodic channel state information report.9.The method of claim 1, wherein receiving the second control message comprises:receiving a medium access control message activating a semi-persistent channel state information report in accordance with the set of parameters, wherein the channel state information report is the semi-persistent channel state information report.10.The method of claim 1, wherein receiving the second control message comprises:receiving a medium access control message triggering an aperiodic channel state information report in accordance with the set of parameters, wherein the channel state information report is the aperiodic channel state information report.11.The method of claim 1, wherein the predicted channel state information measurements are based at least in part on predicted channel measurements of the channel measurement resources or interference measurements of the interference measurement resources which are during or prior to the future slot in time.12.The method of claim 1, wherein the predicted channel state information measurements include a predicted channel quality indicator, a predicted rank indicator, a predicted precoder matrix indication, or any combination thereof, for the set of beams during the future slot.13.A method for wireless communications at a network entity, comprising:receiving a first control message indicating a capability of a user equipment (UE) to support beam prediction associated with channel measurement resources or interference measurement resources, or both;transmitting a second control message indicating a set of parameters for a channel state information report for the beam prediction associated with the channel measurement resources or the interference measurement resources, or both, based at least in part on the capability of the UE; andreceiving the channel state information report indicating predicted channel state information measurements for a set of beams during a future slot based at least in part on the set of parameters.14.The method of claim 13, further comprising:transmitting radio resource control signaling indicating a slot offset between a first slot for the channel state information report and a prediction reference resource during the future slot, wherein the predicted channel state information measurements are based at least in part on the prediction reference resource.15.The method of claim 14, wherein the prediction reference resource during the future slot is offset from a measurement reference resource in time by the slot offset.16.The method of claim 13, further comprising:transmitting a radio resource control message indicating that a time restriction is not configured for channel measurements or interference measurements, or both, based at least in part on the set of parameters.17.The method of claim 13, further comprising:transmitting a radio resource control message indicating one or more sets of parameters for predicted measurements associated with the channel measurement resources or the interference measurement resources, or both, based at least in part on the capability of the UE, wherein the second control message indicates the set of parameters from the one or more sets of parameters.18.The method of claim 13, wherein transmitting the second control message comprises:transmitting a radio resource control message configuring a periodic channel state information report in accordance with the set of parameters, wherein the channel state information report is the periodic channel state information report.19.The method of claim 13, wherein transmitting the second control message comprises:transmitting a medium access control message activating a semi-persistent channel state information report in accordance with the set of parameters, wherein the channel state information report is the semi-persistent channel state information report.20.The method of claim 13, wherein transmitting the second control message comprises:transmitting a medium access control message triggering an aperiodic channel state information report in accordance with the set of parameters, wherein the channel state information report is the aperiodic channel state information report.21.The method of claim 13, wherein the predicted channel state information measurements are based at least in part on predicted channel measurements of the channel measurement resources or interference measurements of the interference measurement resources which are during or prior to the future slot in time.22.The method of claim 13, wherein the predicted channel state information measurements include a predicted channel quality indicator, a predicted rank indicator, a predicted precoder matrix indication, or any combination thereof, for the set of beams during the future slot.23.An apparatus for wireless communications at a user equipment (UE) , comprising:a processor; anda memory coupled with the processor, with instructions stored in the memory, the instructions being executable by the processor to cause the apparatus to:transmit a first control message indicating a capability of the UE to support beam prediction associated with channel measurement resources or interference measurement resources, or both;receive a second control message indicating a set of parameters for a channel state information report for the beam prediction associated with the channel measurement resources or the interference measurement resources, or both, based at least in part on the capability of the UE; andtransmit the channel state information report indicating predicted channel state information measurements for a set of beams during a future slot based at least in part on the set of parameters.24.The apparatus of claim 23, wherein the instructions are further executable by the processor to cause the apparatus to:receive radio resource control signaling indicating a slot offset between a first slot for the channel state information report and a prediction reference resource during the future slot, wherein the predicted channel state information measurements are based at least in part on the prediction reference resource.25.The apparatus of claim 23, wherein the instructions are further executable by the processor to cause the apparatus to:predict channel state information measurements associated with the channel measurement resources based at least in part on a time restriction for channel measurements not being configured.26.The apparatus of claim 23, wherein the instructions are further executable by the processor to cause the apparatus to:predict channel state information measurements associated with the interference measurement resources based at least in part on a time restriction for interference measurements not being configured.27.The apparatus of claim 23, wherein the instructions are further executable by the processor to cause the apparatus to:receive a radio resource control message indicating that a time restriction is not configured for channel measurements or interference measurements, or both, based at least in part on the set of parameters.28.The apparatus of claim 23, wherein the instructions are further executable by the processor to cause the apparatus to:receive a radio resource control message indicating one or more sets of parameters for predicted measurements associated with the channel measurement resources or the interference measurement resources, or both, based at least in part on the capability of the UE, wherein the second control message indicates the set of parameters from the one or more sets of parameters.29.An apparatus for wireless communications at a network entity, comprising:a processor; anda memory coupled with the processor, with instructions stored in the memory, the instructions being executable by the processor to cause the apparatus to:receive a first control message indicating a capability of a user equipment (UE) to support beam prediction associated with channel measurement resources or interference measurement resources, or both;transmit a second control message indicating a set of parameters for a channel state information report for the beam prediction associated with the channel measurement resources or the interference measurement resources, or both, based at least in part on the capability of the UE; andreceive the channel state information report indicating predicted channel state information measurements for a set of beams during a future slot based at least in part on the set of parameters.30.The apparatus of claim 29, wherein the instructions are further executable by the processor to cause the apparatus to:transmit radio resource control signaling indicating a slot offset between a first slot for the channel state information report and a prediction reference resource during the future slot, wherein the predicted channel state information measurements are based at least in part on the prediction reference resource.