Method and apparatus for reporting CSI prediction for beam set
By supporting CMR or IMR-based beam prediction technology in the user equipment (UE) of wireless communication systems, the problem of inefficient time domain channels and interference prediction in existing systems is solved, and more efficient beam management is achieved and power consumption is reduced.
Patent Information
- Application Number
- CN202280100411.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2022-09-29
- Publication Date
- 2025-05-02
Smart Images

Figure CN119923810A_ABST
Abstract
Description
Technical Field
[0001] The following relates to wireless communications, including a timeline for time-domain channel and interference prediction. Background Art
[0002] Wireless communication systems are widely deployed to provide various types of communication content, such as voice, video, packet data, messaging, broadcast, and the like. These systems may be able to support communication with multiple users by sharing available system resources (e.g., time, frequency, and power). Examples of such multiple access systems include fourth generation (4G) systems (such as long term evolution (LTE) systems, advanced LTE (LTE-A) systems, or LTE-A Pro systems) and fifth generation (5G) systems (which may be referred to as new radio (NR) systems). These systems may employ techniques such as code division multiple access (CDMA), time division multiple access (TDMA), frequency division multiple access (FDMA), orthogonal FDMA (OFDMA), or discrete Fourier transform spread orthogonal frequency division multiplexing (DFT-S-OFDM). A wireless multiple access communication system may include one or more base stations, each of which supports wireless communications for communication devices, which may be referred to as user equipment (UE). Summary of the invention
[0003] The described technology relates to improved methods, systems, devices and apparatuses that support timelines for time domain channel and interference prediction. For example, the described technology provides a UE with the ability to indicate support for beam prediction techniques based on channel measurement resources (CMR) or interference measurement resources (IMR) or both. The UE may be configured to perform channel prediction, interference prediction, or both based on the capabilities of the UE. The UE may send a UE capability message to a network entity to report the UE's ability to support channel prediction, interference prediction, or both. The network entity may configure or indicate whether the UE will perform channel prediction, interference prediction, or both for CSI reporting based on the UE's capabilities. If the UE can support channel prediction or interference prediction, the time limit parameters for the corresponding measurements may not be configured. By setting the time limit parameters to unconfigured, the transmit beams from the network entity may be considered to be the same across different time instances, which may enable the UE to filter or combine measurements from different time slots to assist in channel prediction and interference prediction for a beam set. Some additional techniques are described to support future CSI reference resources, which may be offset (e.g., in time) from the measured CSI reference resources. The predicted CSI reference resources may indicate a time slot offset separate from the measured CSI reference resources. Configuring the future CSI reference resources may enable CSI parameters to be based on beam measurements that may be made during or before the measured CSI reference resources for non-predictive beam measurements and for beam prediction measurements that may be made during or before the predicted CSI reference resources that are offset in time from the measured CSI reference resources.
[0004] A method for wireless communication at a UE is described. The method may include: sending a first control message indicating a capability of the UE to support beam prediction associated with CMR or IMR or both; receiving a second control message based on the capability of the UE, the second control message indicating a parameter set for a CSI report for the beam prediction associated with the CMR or the IMR or both; and sending the CSI report based on the parameter set, the CSI report indicating a predicted CSI measurement for the beam set during a future time slot.
[0005] An apparatus for wireless communication at a UE is described. The apparatus may include a processor and a memory coupled to the processor, wherein instructions are stored in the memory. The instructions are executable by the processor to cause the apparatus to: send a first control message indicating the capability of the UE to support beam prediction associated with CMR or IMR or both; receive a second control message based on the capability of the UE, the second control message indicating a parameter set for a CSI report for the beam prediction associated with the CMR or the IMR or both; and send the CSI report based on the parameter set, the CSI report indicating a predicted CSI measurement for the beam set during a future time slot.
[0006] Another apparatus for wireless communication at a UE is described. The apparatus may include: a component for sending a first control message indicating the capability of the UE to support beam prediction associated with CMR or IMR or both; a component for receiving a second control message based on the capability of the UE, the second control message indicating a parameter set for a CSI report for the beam prediction associated with the CMR or the IMR or both; and a component for sending the CSI report based on the parameter set, the CSI report indicating a predicted CSI measurement for a beam set during a future time slot.
[0007] A non-transitory computer-readable medium storing code for wireless communication at a UE is described. The code may include instructions executable by a processor to perform the following actions: sending a first control message indicating the capability of the UE to support beam prediction associated with CMR or IMR or both; receiving a second control message based on the capability of the UE, the second control message indicating a parameter set for a CSI report for the beam prediction associated with the CMR or the IMR or both; and sending the CSI report based on the parameter set, the CSI report indicating a predicted CSI measurement for a beam set during a future time slot.
[0008] Some examples of the methods, apparatus, and non-transitory computer-readable media described herein may also include operations, features, components, or instructions for performing the following actions: receiving radio resource control signaling indicating a time slot offset between a first time slot for the CSI report and a predicted reference resource during the future time slot, wherein the predicted CSI measurement may be based on the predicted reference resource.
[0009] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, the predicted reference resource during the future time slot may be offset in time from the measured reference resource by the time slot offset.
[0010] Some examples of the methods, apparatuses, and non-transitory computer-readable media described herein may also include operations, features, components, or instructions for predicting a CSI measurement associated with the CMR based on the time limit for the channel measurement not being configured.
[0011] Some examples of the methods, apparatuses, and non-transitory computer-readable media described herein may also include operations, features, components, or instructions for predicting a CSI measurement associated with the IMR based on the time limit for the interference measurement not being configured.
[0012] Some examples of the methods, apparatus, and non-transitory computer-readable media described herein may also include operations, features, components, or instructions for performing the following actions: receiving a radio resource control message based on the parameter set, the radio resource control message indicating that a time limit may not be configured for channel measurement or interference measurement or both.
[0013] Some examples of the methods, apparatus, and non-transitory computer-readable media described herein may also include operations, features, components, or instructions for performing the following actions: receiving a radio resource control message based on the capability of the UE, the radio resource control message indicating one or more parameter sets for predictive measurements associated with the CMR or the IMR or both, wherein the second control message indicates the parameter set from the one or more parameter sets.
[0014] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, receiving the second control message may include operations, features, components, or instructions for performing the following actions: receiving a radio resource control message that configures a periodic CSI report based on the parameter set, wherein the CSI report may be the periodic CSI report.
[0015] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, receiving the second control message may include operations, features, components, or instructions for performing the following actions: receiving a medium access control message that activates a semi-persistent CSI report based on the parameter set, wherein the CSI report may be the semi-persistent CSI report.
[0016] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, receiving the second control message may include operations, features, components, or instructions for performing the following actions: receiving a medium access control message that triggers a non-periodic CSI report based on the parameter set, wherein the CSI report may be the non-periodic CSI report.
[0017] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, the predicted CSI measurement may be based on a predicted channel measurement of the CMR or an interference measurement of the IMR that may be during or before the future time slot in time.
[0018] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, the predicted CSI measurement includes a predicted channel quality indicator, a predicted rank indicator, a predicted precoder matrix indication, or any combination thereof for the beam set during the future time slot.
[0019] A method for wireless communication 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 CMR or IMR or both; sending a second control message based on the capability of the UE, the second control message indicating a parameter set for a CSI report for the beam prediction associated with the CMR or the IMR or both; and receiving the CSI report based on the parameter set, the CSI report indicating a predicted CSI measurement for a beam set during a future time slot.
[0020] An apparatus for wireless communication at a network entity is described. The apparatus may include a processor and a memory coupled to the processor, wherein instructions are stored in the memory. The instructions are 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 CMR or IMR or both; send a second control message based on the capability of the UE, the second control message indicating a parameter set for a CSI report for the beam prediction associated with the CMR or the IMR or both; and receive the CSI report based on the parameter set, the CSI report indicating a predicted CSI measurement for a beam set during a future time slot.
[0021] Another apparatus for wireless communication at a network entity is described. The apparatus may include: a component for receiving a first control message indicating a capability of a UE to support beam prediction associated with CMR or IMR or both; a component for sending a second control message based on the capability of the UE, the second control message indicating a parameter set for a CSI report for the beam prediction associated with the CMR or the IMR or both; and a component for receiving the CSI report based on the parameter set, the CSI report indicating a predicted CSI measurement for a beam set during a future time slot.
[0022] A non-transitory computer-readable medium storing code for wireless communication at a network entity is described. The code may include instructions executable by a processor to perform the following actions: receiving a first control message indicating a capability of a UE to support beam prediction associated with CMR or IMR or both; sending a second control message based on the capability of the UE, the second control message indicating a parameter set for a CSI report for the beam prediction associated with the CMR or the IMR or both; and receiving the CSI report based on the parameter set, the CSI report indicating a predicted CSI measurement for a beam set during a future time slot.
[0023] Some examples of the methods, apparatus, and non-transitory computer-readable media described herein may also include operations, features, components, or instructions for performing the following actions: sending radio resource control signaling that indicates a time slot offset between a first time slot used for the CSI report and a predicted reference resource during the future time slot, wherein the predicted CSI measurement may be based on the predicted reference resource.
[0024] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, the predicted reference resource during the future time slot may be offset in time from the measured reference resource by the time slot offset.
[0025] Some examples of the methods, apparatus, and non-transitory computer-readable media described herein may also include operations, features, components, or instructions for performing the following actions: sending a radio resource control message based on the parameter set, the radio resource control message indicating that the time limit may not be configured for channel measurement or interference measurement or both.
[0026] Some examples of the methods, apparatus, and non-transitory computer-readable media described herein may also include operations, features, components, or instructions for performing the following actions: sending a radio resource control message based on the capability of the UE, the radio resource control message indicating one or more parameter sets for predictive measurements associated with the CMR or the IMR or both, wherein the second control message indicates the parameter set from the one or more parameter sets.
[0027] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, sending the second control message may include operations, features, components, or instructions for performing the following actions: sending a radio resource control message that configures a periodic CSI report based on the parameter set, wherein the CSI report may be the periodic CSI report.
[0028] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, sending the second control message may include operations, features, components, or instructions for performing the following actions: sending a medium access control message that activates a semi-persistent CSI report based on the parameter set, wherein the CSI report may be the semi-persistent CSI report.
[0029] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, sending the second control message may include operations, features, components, or instructions for performing the following actions: sending a medium access control message that triggers a non-periodic CSI report based on the parameter set, wherein the CSI report may be the non-periodic CSI report.
[0030] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, the predicted CSI measurement may be based on a predicted channel measurement of the CMR or an interference measurement of the IMR that may be during or before the future time slot in time.
[0031] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, the predicted CSI measurement includes a predicted channel quality indicator, a predicted rank indicator, a predicted precoder matrix indication, or any combination thereof for the beam set during the future time slot. BRIEF DESCRIPTION OF THE DRAWINGS
[0032] Figure 1 An example of a wireless communication system supporting a timeline for time-domain channel and interference prediction in accordance with one or more aspects of the present disclosure is illustrated.
[0033] Figure 2 An example of a wireless communication system supporting a timeline for time-domain channel and interference prediction in accordance with one or more aspects of the present disclosure is illustrated.
[0034] Figure 3 An example of a predictive channel state information (CSI) reporting timeline supporting a timeline for time domain channel and interference prediction in accordance with one or more aspects of the present disclosure is illustrated.
[0035] Figure 4 An example of a process flow supporting a timeline for time-domain channel and interference prediction in accordance with one or more aspects of the present disclosure is illustrated.
[0036] Figure 5 and Figure 6 A block diagram of an apparatus supporting timeline for time-domain channel and interference prediction according to one or more aspects of the present disclosure is shown.
[0037] Figure 7 A block diagram of a communication manager supporting a timeline for time-domain channel and interference prediction is shown in accordance with one or more aspects of the present disclosure.
[0038] Figure 8 A diagram of a system including a device supporting timeline for time domain channel and interference prediction is shown in accordance with one or more aspects of the present disclosure.
[0039] Fig. 9 and Fig.10 A block diagram of an apparatus supporting timeline for time-domain channel and interference prediction according to one or more aspects of the present disclosure is shown.
[0040] Fig.11 A block diagram of a communication manager supporting a timeline for time-domain channel and interference prediction is shown in accordance with one or more aspects of the present disclosure.
[0041] Fig.12 A diagram of a system including a device supporting timeline for time domain channel and interference prediction is shown in accordance with one or more aspects of the present disclosure.
[0042] Figures 13 to 16 A flow chart illustrating a method of supporting a timeline for time-domain channel and interference prediction according to one or more aspects of the present disclosure is shown. DETAILED DESCRIPTION
[0043] In some wireless communication systems, beam management may be calculated via historical measurements (e.g., final beam measurements). However, calculating beam quality and failures only via measurements may result in high power consumption or overhead. Additionally or alternatively, if power and overhead consumption are limited, beam accuracy may be limited. To prevent these problems, some wireless systems may use artificial intelligence (AI) or machine learning (ML) models to implement predictive beam management. For example, using a machine learning model to predict unmeasured beam quality may reduce power consumption and overhead, and predicting future beam blocking and failures may reduce latency and increase throughput. Some systems may implement beam prediction for channel measurement resources (CMRs) to predict channel measurements, but interference may similarly affect channel quality and beam management. However, not all UEs served by a cell may be able to perform both beam prediction using CMRs and beam prediction using interference measurement resources (IMRs).
[0044] A wireless communication system may support a technology for a UE to indicate the ability to support beam prediction technology based on CMR or IMR or both. The UE may be configured to perform channel prediction, interference prediction, or both based on the UE's capabilities. The UE may send a UE capability message to a network entity to report the UE's ability to support channel prediction, interference prediction, or both. The network entity may configure or indicate whether the UE will perform channel prediction, interference prediction, or both for CSI reporting based on the UE's capabilities. If the UE can support channel prediction or interference prediction, the time limit parameter for the corresponding measurement may not be configured (e.g., may be set to notConfigured). By setting the time limit parameter to unconfigured, the transmit beam from the network entity may be considered to be the same across different time instances, which may enable the UE to filter or combine measurements from different time slots to assist in channel prediction and interference prediction for a beam set. Some additional technologies are described to support future CSI reference resources, which may be offset from the measured CSI reference resources (e.g., in time). The time slot offset that the predicted CSI reference resource may indicate is separated from the measured CSI reference resource. Configuring future CSI reference resources may enable CSI parameters to be based on beam measurements that may be made during or before a measured CSI reference resource for non-predictive beam measurements and for beam predicted measurements that may be made during or before a predicted CSI reference resource that is offset in time from the measured CSI reference resource.
[0045] Aspects of the present disclosure are first described in the context of a wireless communication system. Aspects of the present disclosure are further illustrated and described by and with reference to apparatus diagrams, system diagrams, and flow diagrams associated with a timeline for time-domain channel and interference prediction.
[0046] Figure 1An example of a wireless communication system 100 supporting a timeline for time domain channel and interference prediction according to one or more aspects of the present disclosure is illustrated. The wireless communication system 100 may include one or more network entities 105, one or more UEs 115, and a core network 130. In some examples, the wireless communication system 100 may be a Long Term Evolution (LTE) network, an Advanced LTE (LTE-A) network, an LTE-A Pro network, a New Radio (NR) network, or a network operating according to other systems and radio technologies, including future systems and radio technologies not explicitly mentioned herein.
[0047] The network entities 105 may be dispersed throughout a geographic area to form the wireless communication system 100, and may include devices in different forms or with different capabilities. In various examples, the network entities 105 may be referred to as network elements, mobility elements, radio access network (RAN) nodes, or network equipment, among other nomenclature. In some examples, the network entities 105 and the UE 115 may communicate wirelessly via one or more communication links 125 (e.g., radio frequency (RF) access links). For example, the network entity 105 may support a coverage area 110 (e.g., a geographic coverage area) within which the UE 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 within which the network entity 105 and the UE 115 may support signal communications according to one or more radio access technologies (RATs).
[0048] The UEs 115 may be dispersed throughout the coverage area 110 of the wireless communication system 100, and each UE 115 may be stationary or mobile or both stationary and mobile at different times. The UEs 115 may be devices in different forms or with different capabilities. Figure 1 Some example UEs 115 are illustrated in FIG. 1. The UEs 115 described herein may be capable of supporting communication with various types of devices such as Figure 1 Other UEs 115 or network entities 105 are shown communicating.
[0049] As described herein, a node of the wireless communication system 100 (which may be referred to as a network node or a wireless node) 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, the node may be a UE 115. As another example, the 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 other aspects of this example, the first node, the second node, and the third node may be different relative to these examples. Similarly, references to UE 115, network entity 105, apparatus, device, computing system, etc. may include disclosure of UE 115, network entity 105, apparatus, device, computing system, etc. as nodes. For example, a disclosure that UE 115 is configured to receive information from network entity 105 also discloses that the first node is configured to receive information from a second node.
[0050] In some examples, the network entities 105 may communicate with the core network 130, or with each other, or both. For example, the network entities 105 may communicate with the core network 130 via one or more backhaul communication links 120 (e.g., according to S1, N2, N3, or other interface protocols). In some examples, the network entities 105 may communicate with each other via the backhaul communication links 120 (e.g., according to X2, Xn, or other interface protocols) directly (e.g., directly between the network entities 105) or indirectly (e.g., via the core network 130). In some examples, the network entities 105 may communicate with each other via the midhaul communication links 162 (e.g., according to the midhaul interface protocol) or the fronthaul communication links 168 (e.g., according to the fronthaul interface protocol) or any combination thereof. The backhaul communication links 120, the midhaul communication links 162, or the fronthaul communication links 168 may be or include one or more wired links (e.g., electrical links, optical fiber links), one or more wireless links (e.g., radio links, wireless optical links), etc. or various combinations thereof. UE 115 may communicate with core network 130 via communication link 155 .
[0051] One or more of the network entities 105 described herein may include or may be referred to as a base station 140 (e.g., a transceiver base station, a radio base station, an NR base station, an access point, a radio transceiver, a Node B, an evolved Node B (eNB), a next generation Node B, or a Gigabit Node B (any of which may be referred to as a gNB), a 5G NB, a next generation eNB (ng-eNB), a home Node B, a home evolved Node B, or other suitable terms). In some examples, the network entity 105 (e.g., a base station 140) may be implemented in an aggregated (e.g., monolithic, stand-alone) base station architecture, which may be configured to utilize a protocol stack physically or logically integrated within a single network entity 105 (e.g., a single RAN node, such as a base station 140).
[0052] In some examples, the network entity 105 may be implemented in a disaggregated architecture (e.g., a disaggregated base station architecture, a disaggregated RAN architecture) that may be configured to utilize a protocol stack that is physically or logically distributed between two or more network entities 105, such as an integrated access backhaul (IAB) network, an open RAN (O-RAN) (e.g., a network configuration sponsored by the O-RAN Alliance), or a virtualized RAN (vRAN) (e.g., a cloud RAN (C-RAN)). For example, the network entity 105 may include one or more of the following: a central unit (CU) 160, a distributed unit (DU) 165, a radio unit (RU) 170, a RAN intelligent controller (RIC) 175 (e.g., a near real-time RIC (near RT RIC), a non-real-time RIC (non-RT RIC)), a service management and orchestration (SMO) 180 system, or any combination thereof. The RU 170 may also be referred to as a radio head, a smart radio head, a remote radio head (RRH), a remote radio unit (RRU), or a transmit receive point (TRP). One or more components of the network entity 105 in the decomposed RAN architecture may be co-located, or one or more components of the network entity 105 may be located in distributed locations (e.g., separate physical locations). In some examples, one or more network entities 105 of the decomposed RAN architecture may be implemented as virtual units (e.g., virtual CU (VCU), virtual DU (VDU), virtual RU (VRU)).
[0053] The functional split between CU 160, DU 165, and 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 combination thereof) are performed at CU 160, DU 165, or RU 170. For example, a functional split of a protocol stack may be employed between CU 160 and DU 165 such that CU 160 may support one or more layers of a protocol stack and DU 165 may support one or more different layers of a protocol stack. In some examples, CU 160 may host higher protocol layer (e.g., layer 3 (L3), layer 2 (L2)) functionality and signaling (e.g., radio resource control (RRC), service data adaptation 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 the DUs 165 and RUs 170, such that the DUs 165 may support one or more layers of the protocol stack, and the RUs 170 may support one or more different layers of the protocol stack. The DUs 165 may support one or more different cells (e.g., via one or more RUs 170). In some cases, the functional split between CU 160 and DU 165 or between DU 165 and RU 170 may be within the protocol layer (e.g., some functions of the protocol layer may be performed by one of CU 160, DU 165, or RU 170, while other functions of the protocol layer are performed by different ones of CU 160, DU 165, or RU 170). CU 160 may be further functionally split into CU control plane (CU-CP) and CU user plane (CU-UP) functions. CU 160 may be connected to one or more DUs 165 via midhaul communication links 162 (e.g., F1, F1-c, F1-u), and DU 165 may be connected to one or more RUs 170 via fronthaul communication links 168 (e.g., open fronthaul (FH) interface). In some examples, midhaul communication link 162 or fronthaul communication link 168 may be implemented based on an interface (e.g., a channel) between layers of a protocol stack supported by respective network entities 105 that communicate via such communication links.
[0054] In some wireless communication systems (e.g., wireless communication system 100), infrastructure and spectrum resources for radio access may support wireless backhaul link capabilities to supplement wired backhaul connections, thereby providing an IAB network architecture (e.g., to core network 130). In some cases, in an IAB network, one or more network entities 105 (e.g., IAB nodes 104) may be partially controlled by each other. One or more IAB nodes 104 may be referred to as donor entities or IAB donors. One or more DUs 165 or one or more RUs 170 may be controlled in part by one or more CUs 160 associated with a donor network entity 105 (e.g., donor base station 140). One or more donor network entities 105 (e.g., IAB donors) may communicate with one or more additional network entities 105 (e.g., IAB nodes 104) via supported access and backhaul links (e.g., backhaul communication links 120). The IAB node 104 may include an IAB mobile terminal (IAB-MT) controlled (e.g., scheduled) by a coupled IAB donor's DU 165. The IAB-MT may include an independent set of antennas for relaying communications with the UE 115, or may share the same antennas of the IAB node 104 (e.g., of the RU 170) for access via the DU 165 of the IAB node 104 (e.g., referred to as a virtual IAB-MT (vIAB-MT)). In some examples, the IAB node 104 may include a DU 165 that supports communication links with additional entities (e.g., IAB node 104, UE 115) within a relay chain or configuration (e.g., downstream) of the access network. In such cases, one or more components of the decomposed RAN architecture (e.g., one or more IAB nodes 104 or components of the IAB node 104) may be configured to operate according to the techniques described herein.
[0055] For example, an access network (AN) or RAN may include an access node (e.g., an IAB donor), communications between an IAB node 104, and one or more UEs 115. The IAB donor may facilitate a connection between the core network 130 and the AN (e.g., via a wired or wireless connection to the core network 130). That is, the IAB donor may refer to a RAN node having a wired or wireless connection to the core network 130. The IAB donor may include a CU 160 and at least one DU 165 (e.g., and RU 170), wherein the CU 160 may communicate with the core network 130 via an interface (e.g., a backhaul link). The IAB donor and the IAB node 104 may communicate via an F1 interface according to a protocol defining a signaling message (e.g., an F1 AP protocol). Additionally or alternatively, CU 160 may communicate with the core network via an interface (which may be an example of a portion of a backhaul link) and may communicate with other CUs 160 (e.g., 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).
[0056] An IAB node 104 may refer to a RAN node that provides IAB functionality (e.g., access for UE 115, wireless self-backhaul capabilities, etc.). The DU 165 may act as a distributed scheduling node toward child nodes associated with the IAB node 104, and the IAB-MT may act as a scheduled node toward a parent node associated with the IAB node 104. That is, an IAB donor may be referred to as a parent node that communicates with one or more child nodes (e.g., the IAB donor may relay for transmissions to UEs through one or more other IAB nodes 104). Additionally or alternatively, depending on the relay chain or configuration of the AN, the IAB node 104 may also be referred to as a parent node or child node of other IAB nodes 104. Thus, the IAB-MT entity of the IAB node 104 may provide a Uu interface for the child IAB node 104 to receive signaling from the parent IAB node 104 , and a DU interface (eg, DU 165 ) may provide a Uu interface for the parent IAB node 104 to signal to the child IAB node 104 or the UE 115 .
[0057] For example, the IAB node 104 may be referred to as a parent node supporting communications for a child IAB node or as a child IAB node associated with an IAB donor, or both. The IAB donor may include a CU 160 having a wired or wireless connection (e.g., backhaul communication link 120) to the core network 130, and may act as a parent node of the IAB node 104. For example, the DU 165 of the IAB donor may relay the transmission to the UE 115 through the IAB node 104, or may directly signal the transmission to the UE 115, or both. The CU 160 of the IAB donor may signal the establishment of a communication link to the IAB node 104 via the F1 interface, and the IAB node 104 may schedule the transmission (e.g., the transmission relayed from the IAB donor to the UE 115) via the DU 165. That is, data may be relayed to and from the IAB node 104 via signaling via the NR Uu interface of the MT to the IAB node 104. Communications with the IAB node 104 may be scheduled by the DU 165 of the IAB donor, and communications with the IAB node 104 may be scheduled by the DU 165 of the IAB node 104 .
[0058] In the case where the techniques described herein are applied to the context of a decomposed RAN architecture, one or more components of the decomposed RAN architecture may be configured to support the timeline 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 decomposed RAN architecture (e.g., an IAB node 104, a DU 165, a CU 160, a RU 170, a RIC 175, a SMO 180).
[0059] 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 term, where a "device" may also be referred to as a unit, a station, a terminal, or a client, etc. 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, UE 115 may include or may be referred to as a wireless local loop (WLL) station, an Internet of Things (IoT) device, an Internet of Everything (IoE) device, or a machine type communication (MTC) device, etc., which may be implemented in various objects such as appliances or vehicles, meters, etc.
[0060] The UE 115 described herein may be capable of communicating with various types of devices, such as other UEs 115, which may sometimes act as relays, as well as network entities 105 and network equipment including macro eNBs or gNBs, small cell eNBs or gNBs, or relay base stations, etc. Figure 1shown.
[0061] The UE 115 and the network entity 105 may communicate wirelessly with each other via one or more communication links 125 (e.g., access links) using resources associated with one or more carriers. The term "carrier" may refer to a set of RF spectrum resources having a physical layer structure defined for supporting the communication link 125. For example, a carrier for the communication link 125 may include a portion of an RF spectrum band (e.g., a bandwidth portion (BWP)) that operates according to one or more physical layer channels for a given radio access technology (e.g., LTE, LTE-A, LTE-A Pro, NR). Each physical layer channel may carry acquisition signaling (e.g., synchronization signals, system information), control signaling for coordinating carrier operations, user data, or other signaling. The wireless communication system 100 may support communications with the UE 115 using carrier aggregation or multi-carrier operation. Depending on the carrier aggregation configuration, the UE 115 may be configured to have multiple downlink component carriers and one or more uplink component carriers. Carrier aggregation may be used for both frequency division duplex (FDD) and time division duplex (TDD) component carriers. Communication between the network entity 105 and other devices may refer to communication between these devices and any part (e.g., entity, sub-entity) of the network entity 105. For example, the terms "send", "receive", or "communicate" when referring to the network entity 105 may refer to any part of the network entity 105 (e.g., base station 140, CU 160, DU 165, RU 170) of the RAN communicating with another device (e.g., directly or via one or more other network entities 105).
[0062] In some examples, such as in a carrier aggregation configuration, a carrier may also have acquisition signaling or control signaling that coordinates the operation of other carriers. A carrier may be associated with a frequency channel (e.g., an Evolved Universal Mobile Telecommunications System Terrestrial Radio Access (E-UTRA) Absolute RF Channel Number (EARFCN)) and may be identified based on a channel raster used for discovery by UE 115. A carrier may operate in a standalone mode, in which case initial acquisition and connection may be made by UE 115 via the carrier, or a carrier may operate in a non-standalone mode, in which case a different carrier (e.g., of the same or different radio access technology) is used to anchor the connection.
[0063] The communication link 125 shown in the wireless communication system 100 may include downlink transmissions (e.g., forward link transmissions) from the network entity 105 to the UE 115, uplink transmissions (e.g., return link transmissions) from the UE 115 to the network entity 105, or both, among other transmission configurations. A carrier may carry either downlink communications or uplink communications (e.g., in an FDD mode), or may be configured to carry both downlink communications and uplink communications (e.g., in a TDD mode).
[0064] 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 the "system bandwidth" of the carrier or wireless communication system 100. For example, the carrier bandwidth may be one of a set of bandwidths of carriers for a particular radio access technology (e.g., 1.4 megahertz (MHz), 3 MHz, 5 MHz, 10 MHz, 15 MHz, 20 MHz, 40 MHz, or 80 MHz). Devices of the wireless communication system 100 (e.g., the network entity 105, the UE 115, or both) may have a hardware configuration that supports communications using a particular carrier bandwidth, or may be configured to support communications using one of the carrier bandwidths in the set of carrier bandwidths. In some examples, the wireless communication system 100 may include a network entity 105 or a UE 115 that supports concurrent communications using carriers associated with multiple carrier bandwidths. In some examples, each served UE 115 may be configured to operate using a portion (e.g., a subband, a BWP) or all of the carrier bandwidth.
[0065] The signal waveform transmitted via the carrier may include multiple subcarriers (e.g., using multi-carrier modulation (MCM) techniques, such as orthogonal frequency division multiplexing (OFDM) or discrete Fourier transform spread OFDM (DFT-S-OFDM)). In a system employing MCM techniques, a resource element may refer to a resource of one symbol period (e.g., the duration of one modulation symbol) and one subcarrier, in which case the symbol period and the subcarrier spacing may be inversely related. The number of bits carried by each resource element may depend on the modulation scheme (e.g., the order of the modulation scheme, the coding rate of the modulation scheme, or both), so that a relatively high number of resource elements (e.g., in the transmission duration) and a relatively high modulation scheme order may correspond to a relatively high communication rate. Wireless communication resources may refer to a combination of RF spectrum resources, time resources, and spatial resources (e.g., spatial layers or beams), and the use of multiple spatial resources may increase the data rate or data integrity used for communication with UE 115.
[0066] One or more parameter sets for a carrier may be supported, and the parameter sets may include subcarrier spacing (Δf) and cyclic prefixes. A carrier may be divided into one or more BWPs with the same or different parameter sets. 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 of a UE 115 may be constrained to one or more active BWPs.
[0067] The time interval for the network entity 105 or the UE 115 may be expressed in multiples of a basic time unit, which may be, for example, a sampling period T s =1 / (Δf max ·N f ) seconds, where Δf max It can represent the supported subcarrier spacing, and N f The supported discrete Fourier transform (DFT) size may be indicated. Time intervals of the communication resources 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).
[0068] Each frame may include multiple consecutively numbered subframes or time slots, and each subframe or time slot may have the same duration. In some examples, the frame may be divided into subframes (e.g., in the time domain), and each subframe may be further divided into a certain number of time slots. Alternatively, each frame may include a variable number of time slots, and the number of time slots may depend on the subcarrier spacing. Each time slot may include a certain number of symbol periods (e.g., depending on the length of the cyclic prefix appended in front of each symbol period). In some wireless communication systems 100, the time slot may be further divided into a plurality of micro time slots associated with one or more symbols. Excluding the cyclic prefix, each symbol period may be associated with one or more (e.g., N f The duration of a symbol period may depend on the subcarrier spacing or the operating frequency band.
[0069] A subframe, a time slot, a mini-time slot, or a symbol may be the smallest scheduling unit (e.g., in the time domain) of the wireless communication system 100 and may be referred to as a transmission time interval (TTI). In some examples, the TTI duration (e.g., the number of symbol periods in a TTI) may be variable. Additionally or alternatively, the smallest scheduling unit of the wireless communication system 100 may be dynamically selected (e.g., in a burst of a shortened TTI (sTTI)).
[0070] According to various techniques, physical channels may be multiplexed using carriers for communication. Physical control channels and physical data channels may be multiplexed for signaling via downlink carriers, for example, using one or more of a time division multiplexing (TDM) technique, a frequency division multiplexing (FDM) technique, or a hybrid TDM-FDM technique. A control region (e.g., a control resource set (CORESET)) of a physical control channel may be defined by a set of symbol periods and may extend across a system bandwidth of a carrier or a subset of that system bandwidth. One or more control regions (e.g., CORESETs) may be configured for a set of UEs 115. For example, one or more UEs in UE 115 may monitor or search a control region to obtain control information according to one or more search space sets, and each search space set may include one or more control channel candidates in one or more aggregation levels arranged in a cascaded manner. The aggregation level of a control channel candidate may refer to the amount of control channel resources (e.g., control channel elements (CCEs)) associated with coded information for a control information format having a given payload size. The search space sets may include a common search space set configured for transmitting control information to multiple UEs 115 , and a UE-specific search space set for transmitting control information to a specific UE 115 .
[0071] The network entity 105 may provide communication coverage via one or more cells (e.g., macro cells, small cells, hot spots, or other types of cells, or any combination thereof). The term "cell" may refer to a logical communication entity used to communicate with the network entity 105 (e.g., using a carrier), and may be associated with an identifier (e.g., a physical cell identifier (PCID), a virtual cell identifier (VCID), or other cell identifier) used to distinguish adjacent cells. In some examples, a cell may also refer to a coverage area 110 or a portion of a coverage area 110 (e.g., a sector) on which a logical communication entity operates. Depending on various factors such as the capabilities of the network entity 105, such cells may range from smaller areas (e.g., structures, subsets of structures) to larger areas. For example, a cell may be or may include a building, a subset of a building, or an external space between or overlapping coverage areas 110, and the like.
[0072] A macro cell generally covers a relatively large geographic area (e.g., several kilometers in radius) and may allow unrestricted access to a UE 115 that has a service subscription with a network provider that supports the macro cell. A small cell may be associated with a lower power network entity 105 (e.g., a lower power base station 140) than a macro cell, and the small cell may operate using the same or different (e.g., licensed, unlicensed) frequency band as the macro cell. A small cell may provide unrestricted access to a UE 115 that has a service subscription with a network provider, or may provide restricted access to a UE 115 associated with a small cell (e.g., a UE 115 in a closed subscriber group (CSG), a UE 115 associated with a user in a home or office). A network entity 105 may support one or more cells, and may also use one or more component carriers to support communications via one or more cells.
[0073] 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 to different types of devices.
[0074] In some examples, the network entities 105 (e.g., base stations 140, RUs 170) may be mobile and thus provide communication coverage for mobile coverage areas 110. In some examples, different coverage areas 110 associated with different technologies may overlap, but the different coverage areas 110 may be supported by the same network entity 105. In some other examples, overlapping coverage areas 110 associated with different technologies may be supported by different network entities 105. The wireless communication system 100 may include, for example, a heterogeneous network in which different types of network entities 105 provide coverage for various coverage areas 110 using the same or different radio access technologies.
[0075] The wireless communication system 100 may support synchronous or asynchronous operation. For synchronous operation, the network entities 105 (e.g., base stations 140) may have similar frame timing, and transmissions from different network entities 105 may be approximately aligned in time. For asynchronous operation, the network entities 105 may have different frame timing, and in some examples, transmissions from different network entities 105 may not be aligned in time. The techniques described herein may be used for either synchronous operation or asynchronous operation.
[0076] Some UEs 115, such as MTC or IoT devices, may be low-cost or low-complexity devices and may provide automated communication between machines (e.g., via machine-to-machine (M2M) communication). M2M communication or MTC may refer to data communication technology that allows devices to communicate with each other or with a network entity 105 (e.g., base station 140) without human intervention. In some examples, M2M communication or MTC may include communication from devices that integrate sensors or meters to measure or acquire information and relay such information to a central server or application that uses the information or presents the information to a person interacting with the application. Some UEs 115 may be designed to collect information or implement automated behavior of machines or other devices. Examples of applications for MTC devices include: smart metering, inventory monitoring, water level monitoring, equipment monitoring, health care monitoring, wildlife monitoring, weather and geographic event monitoring, queue management and tracking, remote security sensing, physical access control, and transaction-based commercial charging.
[0077] Some UEs 115 may be configured to employ an operating mode that reduces power consumption, such as half-duplex communication (e.g., a mode that supports unidirectional communication via transmission or reception but does not transmit and receive concurrently). In some examples, half-duplex communication may be performed at a reduced peak rate. Other energy-saving techniques for UE 115 include entering a power-saving deep sleep mode when not engaged in active communications, operating using limited bandwidth (e.g., according to narrowband communications), or a combination of these techniques. For example, some UEs 115 may be configured to operate using a narrowband protocol type that is associated with a defined portion or range (e.g., a set of subcarriers or resource blocks (RBs)) within a carrier, within a guard band of a carrier, or outside a carrier.
[0078] The wireless communication system 100 may be configured to support ultra-reliable communication or low-latency communication or various combinations thereof. For example, the wireless communication system 100 may be configured to support ultra-reliable low-latency communication (URLLC). UE 115 may be designed to support ultra-reliable or low-latency or critical functions. Ultra-reliable communication may include private 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" are used interchangeably herein.
[0079] In some examples, a UE 115 may be configured to support communication directly with other UEs 115 via a device-to-device (D2D) communication link 135 (e.g., according to a peer-to-peer (P2P), D2D, or sidelink protocol). In some examples, one or more UEs 115 in a group that are performing D2D communication may be within a coverage area 110 of a network entity 105 (e.g., a base station 140, a RU 170), which may support aspects of such D2D communication configured by the network entity 105 (e.g., scheduled by the network entity). In some examples, one or more UEs 115 in such a group may be outside the coverage area 110 of the network entity 105, or may otherwise be unable or not configured to receive transmissions from the network entity 105. In some examples, a group of UEs 115 communicating via D2D communication 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, network entity 105 may facilitate scheduling of resources for D2D communications. In some other examples, D2D communications may be performed between UEs 115 without involving network entity 105.
[0080] In some systems, the D2D communication link 135 can be an example of a communication channel (such as a sidelink communication channel) between vehicles (e.g., UE 115). In some examples, the vehicles can communicate using vehicle-to-everything (V2X) communication, vehicle-to-vehicle (V2V) communication, or some combination of these items. The vehicles can signal information related to traffic conditions, signal scheduling, weather, safety, emergency situations, or any other information related to the V2X system. In some examples, vehicles in the V2X system can communicate with roadside infrastructure (such as roadside units), or communicate with the network via one or more network nodes (e.g., network entity 105, base station 140, RU 170) using vehicle-to-network (V2N) communication, or both.
[0081] 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 a 5G core (5GC), which may include at least one control plane entity (e.g., a mobility management entity (MME), an access and mobility management function (AMF)) for managing access and mobility and at least one user plane entity (e.g., a serving gateway (S-GW), a packet data network (PDN) gateway (P-GW), or a user plane function (UPF)) for routing packets or interconnecting to an external network. The control plane entity may manage non-access layer (NAS) functions, such as mobility, authentication, and bearer management of UE 115 served by a network entity 105 (e.g., a base station 140) associated with the core network 130. User IP packets may be delivered through the user plane entity, which may provide IP address allocation and other functions. The user plane entity may be connected to the IP service 150 of one or more network operators. IP services 150 may include access to the Internet, an intranet, an IP Multimedia Subsystem (IMS), or packet-switched streaming services.
[0082] The wireless communication system 100 may operate using one or more frequency bands that may be in the range of 300 megahertz (MHz) to 300 gigahertz (GHz). Generally speaking, the region from 300 MHz to 3 GHz is referred to as the ultra-high frequency (UHF) region or decimeter band because the wavelength ranges from about one decimeter to one meter in length. UHF waves may be blocked or redirected by buildings and environmental features (which may be referred to as clusters), but these waves may be sufficient to penetrate structures so that macro cells provide services to UEs 115 located indoors. Communications using UHF waves may be associated with smaller antennas and shorter ranges (e.g., less than 100 kilometers) than communications using lower frequencies and longer waves in the high frequency (HF) or very high frequency (VHF) portions of the spectrum below 300 MHz.
[0083] The wireless communication system 100 may also operate using a super high frequency (SHF) region (also known as a centimeter band) that may be in the range of 3 GHz to 30 GHz or an extremely high frequency (EHF) region (e.g., 30 GHz to 300 GHz) (also known as a millimeter band) using a spectrum. In some examples, the wireless communication system 100 may support millimeter wave (mmW) communications between UE 115 and network entity 105 (e.g., base station 140, RU 170), and the EHF antenna of the corresponding device may be smaller and closer than the UHF antenna. In some examples, such technology may facilitate the use of antenna arrays within the device. However, the propagation of EHF transmissions may be affected by greater attenuation and shorter range than SHF or UHF transmissions. The technology disclosed herein may be adopted across transmissions using one or more different frequency regions, and the use of frequency bands specified across these frequency regions may vary by country or regulatory agency.
[0084] The wireless communication system 100 can utilize licensed and unlicensed RF spectrum bands. For example, the wireless communication system 100 can use unlicensed bands (such as the 5 GHz Industrial, Scientific, and Medical (ISM) band) to employ license assisted access (LAA), LTE unlicensed (LTE-U) radio access technology, or NR technology. When operating using unlicensed RF spectrum bands, devices such as network entity 105 and UE 115 can employ carrier sensing for conflict detection and avoidance. In some examples, operations using unlicensed bands can be based on carrier aggregation configuration (e.g., LAA) in combination with component carriers operating using licensed bands. Operations using unlicensed spectrum may include downlink transmissions, uplink transmissions, P2P transmissions, or D2D transmissions, and the like.
[0085] The network entity 105 (e.g., base station 140, RU 170) or UE 115 may be equipped with multiple antennas that can be used to employ technologies such as transmit diversity, receive diversity, multiple-input multiple-output (MIMO) communication, or beamforming. The antennas of the network entity 105 or UE 115 may be located in 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 the network entity 105 may be located at different geographical locations. The network entity 105 may include an antenna array having a collection of multiple rows and columns of antenna ports that the network entity 105 can use to support beamforming for communications with the UE 115. Similarly, the UE 115 may include one or more antenna arrays that may support various MIMO or beamforming operations. Additionally or alternatively, the antenna panel may support RF beamforming for signals sent via the antenna ports.
[0086] The network entity 105 or UE 115 may use MIMO communication to utilize multipath signal propagation and improve spectral efficiency by sending or receiving multiple signals via different spatial layers. Such a technology may be referred to as spatial multiplexing. The multiple signals may be sent, for example, by a transmitting device via different antennas or different combinations of antennas. Similarly, the multiple signals may be received by a 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 for channel measurement and reporting. MIMO technologies include: single-user MIMO (SU-MIMO), for which multiple spatial layers are sent to the same receiving device; and multi-user MIMO (MU-MIMO), for which multiple spatial layers are sent to multiple devices.
[0087] 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 direct 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 signals conveyed via antenna elements of an antenna array so that some signals propagating along a particular orientation relative to the antenna array experience constructive interference, while other signals experience destructive interference. Adjustments to signals conveyed via antenna elements may include the transmitting device or the receiving device applying an amplitude offset, a phase offset, or both to signals carried via antenna elements associated with the device. Adjustments associated with each of these antenna elements may be defined by a set of beamforming weights associated with a particular orientation (e.g., relative to the antenna array of the transmitting device or the receiving device or relative to some other orientation).
[0088] The network entity 105 or UE 115 may use beam scanning techniques as part of a beamforming operation. For example, the network entity 105 (e.g., base station 140, RU 170) may use multiple antennas or antenna arrays (e.g., antenna panels) to perform beamforming operations for directional communication with UE 115. Some signals (e.g., synchronization signals, reference signals, beam selection signals, or other control signals) may be sent multiple times by the network entity 105 along different directions. For example, the network entity 105 may send signals according to different sets of beamforming weights associated with different transmission directions. Transmission along different beam directions may be used to identify (e.g., by a transmitting device (such as network entity 105), or by a receiving device (such as UE 115)) a beam direction for later transmission or reception by the network entity 105.
[0089] Some signals, such as data signals associated with a particular receiving device, may be sent by a sending device (e.g., sending network entity 105, sending UE 115) along a single beam direction (e.g., a direction associated with a receiving device (such as receiving network entity 105 or receiving UE 115)). In some examples, the beam direction associated with the transmission along the single beam direction may be determined based on signals sent along one or more beam directions. For example, UE 115 may receive one or more of the signals sent by network entity 105 along different directions, and may report to network entity 105 an indication of the signal received by UE 115 with the highest signal quality or other acceptable signal quality.
[0090] In some examples, transmission by a device (e.g., by network entity 105 or UE 115) may be performed using multiple beam directions, and the device may use a combination of digital precoding or beamforming to generate a combined beam for transmission (e.g., from network entity 105 to UE 115). UE 115 may report feedback indicating 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 subbands. Network entity 105 may send reference signals (e.g., cell-specific reference signals (CRS), CSI reference signals (CSI-RS)), which may be precoded or not precoded. UE 115 may provide feedback for beam selection, which may be a precoding matrix indicator (PMI) or codebook-based feedback (e.g., multi-panel codebook, linear combination codebook, port selection codebook). Although these techniques are described with reference to signals sent along one or more directions by a network entity 105 (e.g., base station 140, RU 170), UE 115 may use similar techniques to send signals multiple times along different directions (e.g., to identify a beam direction for subsequent transmission or reception by UE 115), or to send signals along a single direction (e.g., to send data to a receiving device).
[0091] A receiving device (e.g., UE 115) may perform receiving operations according to multiple receiving configurations (e.g., directional listening) when receiving various signals (such as synchronization signals, reference signals, beam selection signals, or other control signals) from a receiving device (e.g., network entity 105). For example, the receiving device may perform reception according to multiple receiving directions by: receiving via different antenna subarrays, processing received signals according to different antenna subarrays, receiving according to different receiving beamforming weight sets (e.g., different directional listening weight sets) applied to signals received at multiple antenna elements of an antenna array, or processing received signals according to different receiving 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 receiving configurations or receiving directions. In some examples, the receiving device may use a single receiving configuration to receive along a single beam direction (e.g., when receiving a data signal). A 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 the highest signal strength, highest signal-to-noise ratio (SNR), or other acceptable signal quality based on listening according to multiple beam directions).
[0092] The wireless communication system 100 may be a packet-based network operating according to a layered protocol stack. In the user plane, communications at the bearer or PDCP layer may be IP-based. The RLC layer may perform packet segmentation and reassembly to communicate via logical channels. The MAC layer may perform priority handling and multiplexing of logical channels into transport channels. The MAC layer may also implement error detection techniques, error correction techniques, or both to support retransmission to improve link efficiency. In the control plane, the RRC layer may provide the establishment, configuration, and maintenance of an RRC connection for a radio bearer supporting user plane data between the UE 115 and the network entity 105 or the core network 130. The PHY layer may map transport channels to physical channels.
[0093] UE 115 and network entity 105 may support retransmission of data to increase the likelihood of data being successfully received. Hybrid automatic repeat request (HARQ) feedback is a technique for increasing the likelihood of correctly receiving data via a communication link (e.g., communication link 125, 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 can improve throughput at the MAC layer under poor radio conditions (e.g., low signal-to-noise ratio conditions). In some examples, a device may support same-slot HARQ feedback, in which case the device may provide HARQ feedback in a specific time slot for data received via a previous symbol in the time slot. In some other examples, the device may provide HARQ feedback in a subsequent time slot or according to some other time interval.
[0094] In some examples of the wireless communication system 100, beam management may be calculated via historical measurements (e.g., final beam measurements). However, calculating beam quality and failures only via measurements may result in high power consumption or overhead. Additionally, if power and overhead consumption are limited, beam accuracy may be limited. To prevent these problems, the wireless communication system 100 may use artificial intelligence (AI) or machine learning models to implement predictive beam management. In some examples, predicting unmeasured beam quality may reduce power consumption and overhead, and predicting future beam blocking and failures may reduce latency and increase throughput. In some cases, the wireless communication system 100 may implement beam prediction for CMR to predict channel measurements, but interference may similarly affect channel quality and beam management. However, not all UEs 115 served by a cell may be able to calculate beam predictions using CMR and beam predictions using IMR. In some examples, predicting future interference may require additional computing resources (e.g., additional neural networks (NNs) or additional data collection work), and in some cases, the UE may not be able to access such additional resources.
[0095] In some examples, since the beam prediction may be based on the UE 115 speed or trajectory, the number of receive beams used or to be used, interference or other qualities, the prediction measurement may be highly nonlinear. Therefore, a machine learning model may be expected to predict CMR or IMR. 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 inferences from the network entity 105, which may be based on L1-RSRP or receive beams reported by different UEs 115, or side information (e.g., UE 115 location information). In some other cases, the input may be based on inferences from the UE 115, which may be based on L1-RSRP measured by the UE 115, the receive beam used at the UE 115, or side information (e.g., location, other UE 115 predictions) signaled from the network entity 105 via downlink communications.
[0096] In some examples, there may be some tradeoffs in basing input on inferences from the network entity 105 or the UE 115. For example, when predicting future downlink transmit beam quality, the UE 115 may have more observations made via measurements than the network entity 105, which are determined based on feedback from the UE 115. Therefore, the prediction at the UE 115 may outperform the prediction of the network entity 105, but the UE 115 may consume more power than the network entity 105 for the inference work. Additionally, training a machine learning model at the network entity 105 or the UE 115 may have some additional tradeoffs. For example, training a model at the network entity 105 may collect data via an air interface or via an application layer approach, however, this may result in additional data collection work, which may increase power consumption or latency. However, training a model at the UE 115 may also result in increased power consumption or latency because model training may require additional computation and buffering work. Additionally, additional data storage may be required at the UE 115. Thus, 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 prediction. For example, in some cases, the network entity 105 may train a model and the UE 115 may perform beam prediction for the model (or vice versa), so that neither the network entity 105 nor the UE 115 experiences increased power or consumption for a given amount of time.
[0097] After being trained and receiving input from either the network entity 105 or the UE 115, the machine learning model may output various beam predictions. In some cases, the model may output a predicted L1-RSRP and a corresponding confidence level (e.g., facilitated by other RSRP mean and deviation predictions) along with a predicted beam identifier and a corresponding confidence level. The confidence level generated along with the predicted output (e.g., ranging from 0 for the lowest confidence to 1 for the highest confidence) enables the network entity 105 and the UE 115 to determine whether to use the predicted beam. For example, a high confidence level (e.g., 0.9) may signal that the predicted measurement is accurate and reliable, while 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, where if the prediction has a confidence level below a certain predetermined threshold (e.g., 0.5), the prediction should not be used and the prediction should be re-determined with more information. In some examples, predicting L1-RSRP and beam identifiers can support serving beam refinement and link quality (e.g., channel quality index (CQI) or precoder matrix indicator (PMI)) and interference adaptation. In some other examples of model outputs, the model can generate predictions about beam failure and blockage. These predictions can support the generation of beam failure or blockage predictions or radio link failure predictions. In such examples, the machine learning model can benefit UE 115 by supporting lower power consumption or lower UE 115 specific reference signal overhead compared to other statistical signal processing methods, and can allow lower latency and increased throughput.
[0098] In some examples, UE 115 may use a machine learning model to predict measurements for CSI reporting. The network entity may define a time slot n for uplink transmissions from UE 115 to network entity 105 for CSI reporting. In some cases, time slot n may also be considered as CSI reporting time slot n. In the frequency domain, the CSI reference resources may be defined by a set of physical resource blocks corresponding to the frequency band for which the CSI rate has been derived. In the time domain, the CSI reference resources for CSI reporting in uplink time slot n may be defined by a single downlink time slot n. CSI_ref The CSI reference resource may be offset from the time slot used to send the CSI report to provide UE 115 with sufficient time to generate parameters for the CSI report. In some examples, the CSI report may be periodic or semi-persistent. In some cases, for a single CSI reference resource, n CSI_ref Can be greater than or equal to The minimum value of μ DL is the subcarrier spacing of the downlink channel, such that n CSI_RefCorresponds to a valid downlink time slot. In some other cases, such as for multiple CSI reference resources, n CSI_ref Can be greater than or equal to The minimum value of n CSI_ref Corresponding to a valid downlink time slot. In some other examples, the CSI report at time slot n may be aperiodic.
[0099] In some cases, if the reporting is aperiodic, the UE 115 may be instructed by a control message (eg, DCI) to report the CSI report in the same time slot as the CSI request. CSI_ref The CSI reference resource may be made to be in the same valid downlink time slot as the corresponding control message requesting the CSI report. In some other cases, if the reporting is aperiodic and the request control message and the CSI report time slot n are in different time slots, Can be ≥ The minimum value of may correspond to a valid downlink timeslot, where Z' may correspond to the latency requirement. In such an example, a timeslot in the serving cell may be considered a valid downlink timeslot if it contains at least one higher layer configured downlink or flexible symbol and does not fall within the configured measured gap for UE 115. If there is no valid downlink timeslot for the CSI reference resource corresponding to the CSI reporting setting in the serving cell, CSI reporting is omitted for the serving cell in uplink timeslot n.
[0100] When using CMR or IMR or both to derive the number of reports for a measurement-based CSI report, the CMR or IMR may be no later than the CSI reference resource. For example, when deriving CQI, PMI, rank indicator (RI), L1-RSRP, L1 signal interference plus noise (SINR), or any combination thereof for transmission at CSI reporting slot n, there may be advanced parameters associated with generating measurements or values. In some cases, when measuring CMR, an advanced 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., taking into account historical measurements), and the UE 115 may treat beams across time domain opportunities as being the same. In some examples, the network entity 105 may select beams so that the beams do not change across time domain opportunities. 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 the measurement may be based on the most recent measurement before the CSI reference resource. Therefore, the network entity 105 may change its precoding of beams across time domain opportunities. In some examples, similar techniques may be used to generate measurements based on IMR.
[0101] In some examples, UE 115 may be configured to perform channel prediction, interference prediction, or both based on the capabilities of UE 115. Predicting future interference may require additional computing resources (e.g., additional NN or additional data collection work), and in some cases, the UE may not have access to such additional resources. Therefore, when deriving the reporting quantity, UE 115 may send a capability message to indicate whether channel measurement and interference measurement may be based on prediction or measurement or both. For example, UE 115 may send a capability message to network entity 105 to report the ability of UE 115 to support channel prediction, interference prediction, or both. Network entity 105 may configure or indicate whether UE 115 will perform channel prediction, interference prediction, or both for CSI reporting based on UE 115 capabilities.
[0102] If the UE 115 may support channel prediction or interference prediction, the time restriction parameter for the corresponding measurement (e.g., timeRestrictionForChannelMeasurements for CMR or timeRestrictionForInterferenceMeasurements for IMR) may not be configured (e.g., may be set to notConfigured). By setting the time restriction parameter notConfigured, the network entity 105 may treat the transmit beam as the same across different time instances, which may enable the UE 115 to filter or combine measurements from different time slots to assist in channel prediction and interference prediction for a beam set.
[0103] Additional techniques may be described to support future CSI reference resources that may be offset (e.g., in time) from measured CSI reference resources. The predicted CSI reference resources may indicate a time slot offset separate from the measured CSI reference resources. Configuring future CSI reference resources may enable CSI parameters to be based on beam measurements that may be made during or before measured CSI reference resources for non-predictive beam measurements and for beam prediction measurements that may be made during or before predicted CSI reference resources that are offset in time from measured CSI reference resources.
[0104] Figure 2 An example of a wireless communication system 200 supporting a timeline for time domain channel and interference prediction according to various aspects of the present disclosure is illustrated. In some examples, the wireless communication system 200 may implement aspects of the wireless communication system 100, or may be implemented by aspects of the wireless communication system 100. For example, the wireless communication system 200 may include a UE 115-a and a network entity 105-a (which may be examples of corresponding devices as described herein). In some examples, the wireless communication 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.
[0105] The UE 115-a may be configured to send a CSI report 230 based on the capabilities of the UE 115-a, the CSI report including a predicted interference measurement or a predicted channel measurement, or both. The UE 115-a may send the 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 a report quantity (e.g., parameter) for the CSI report 230 is derived based on historical measurements or generated based on predictions. For example, when the CSI report 230 is configured, activated, or triggered, the network entity 105-a may signal (e.g., indicate) whether a channel measurement for the CSI report 230 or an interference measurement for the CSI report 230, or both, is based on a prediction or a historical measurement.
[0106] UE 115-a may send a UE capability report 210 to network entity 105-a regarding UE 115-a's ability to predict future CMR or IMR beam measurements. For example, UE capability report 210 may indicate that UE 115-a supports predicting measurements associated with future time instances in the time domain based on CMR, IMR, or both. For example, UE capability report 210 may indicate that UE 115-a supports predicting both channel measurements and interference measurements associated with future time instances. In some examples, UE capability report 210 may indicate that UE 115-a supports predicting channel measurements associated with future time instances, but will derive interference measurements based on historical measurements. In some examples, UE capability report 210 may indicate that UE 115-a supports predicting interference measurements associated with future time instances, but will derive channel measurements based on historical measurements. If UE 115-a supports deriving measurements based on historical measurements (e.g., UE 115-a does not support prediction for channel measurements or interference measurements), measurements may be performed via a non-zero power CSI-RS received via an SSB or no later than a CSI reference resource associated with the CSI report.
[0107] In some examples, the UE capability report 210 may report multiple capabilities. For example, the UE 115-a may indicate support for measurements that predict either CMR or IMR, but not both. In some examples, the UE capability report 210 may include two indications, wherein the UE capability report 210 indicates support for channel measurements based on predictions and interference measurements derived based on historical measurements (e.g., predictions for CMR but not IMR support), and the UE capability report 210 indicates support for interference measurements based on predictions and channel measurements derived based on historical measurements (e.g., predictions for IMR but not CMR support). In some cases, the UE 115-a may be equipped with a machine learning model that can predict the L1-RSRP of future CMR beams, but the machine learning model may not predict the interference of future IMR beams (e.g., the UE 115-a may not have additional computing 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 CMR, but not IMR.
[0108] The network entity 105-a may send a CSI report configuration 220 to the UE 115-a to indicate parameters of 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, the CSI report setting may include parameters for the UE 115-a to perform beam prediction for CMR and beam measurement for IMR based on UE capabilities (e.g., historical beam measurement). In another example, the CSI report setting may include parameters for the UE 115-a to perform beam prediction for both CMR and IMR based on UE capabilities. For example, if the number of reports associated with the CSI report setting for the CSI report is determined based on a predicted future time instance, the UE 115-a may be configured or instructed by the network entity 105-a to determine the number of reports for the CSI report (e.g., CSI report 230) based on historical measurements or predictions or both for CMR or IMR. In some examples, CSI reporting configuration 220 may indicate whether a CMR beam, an IMR beam, or both should be based on predictions or historical measurements (eg, based on final measurements).
[0109] In some examples, the CSI reporting configuration 220 may configure the UE 115-a to predict a CMR beam instead of an IMR beam, even if the UE capability report 210 indicates that the UE 115-a is capable of predicting both. For example, in some cases, in order to implement interference prediction, the transmitted interference beam may need to be fixed across time domain timings, which is not supported by some neighboring network entities 105 (e.g., when only CSI inference measurements with time domain varying beamforming are used due to a limited number of resources). Therefore, even if the UE capability report 210 indicates that the UE 115-a can support predicted CMR, IMR, or both, the CSI reporting configuration 220 may configure the UE 115-a to predict only CMR. Additionally or alternatively, the UE 115-a may not be configured to perform predictions that are not indicated as supported by the UE capability report 210.
[0110] UE 115-a may be configured to send aperiodic CSI reports, periodic CSI reports, or semi-persistent CSI reports including beam prediction for CMR or IMR or both based on UE capabilities. For example, for periodic CSI reporting or semi-periodic CSI reporting, the network entity 105-a may send control signaling to configure CSI report settings associated with beam prediction for CMR or IMR or both. For example, the CSI report settings may indicate whether a CMR beam is measured or predicted and whether an IMR beam is measured or predicted. In some cases, for semi-periodic CSI reporting, the network entity 105-a may indicate whether a CMR beam is measured or predicted and whether an IMR beam is measured or predicted via an activation message for semi-periodic CSI reporting (e.g., a MAC control message or MAC-CE). For aperiodic CSI reporting, the network entity 105-a may send a CSI reporting configuration 220 indicating parameters of a CSI reporting setting or an aperiodic CSI trigger state configuration associated with the CSI reporting setting to configure whether a CMR beam or an IMR beam or both are configured for prediction or measurement or both. In some examples, the network entity 105-a may additionally or alternatively indicate whether a CMR beam or an IMR beam or both are configured for prediction or measurement or both via a CSI request message (e.g., a DCI message) (in some cases, based on an aperiodic CSI trigger state indicating aperiodic CSI trigger state configuration).
[0111] In some examples, the network entity 105-a may send signaling to request the UE 115-a to send a CSI report 230 carrying beam predictions for CMR, IMR, or both. For example, the network entity 105-a may send a control message 225 requesting the UE 115-a to send a CSI report. For example, for non-periodic CSI reporting, the control message 225 may be an example of a CSI report trigger, which may be sent via a DCI message. Similarly, for semi-persistent CSI reporting, the control message 225 may be an example of a CSI activation message, which may be sent via a MAC message or a MAC CE. Whether the UE will predict future CMR beams or IMR beams or whether beam measurements for CMR or IMR are to be based on historical measurements may be indicated by the network entity 105-a via a CSI report configuration 220 or a control message 225 (both the CSI report configuration 220 and the control message 225).
[0112] 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 a non-periodic CSI report. The CSI report setting may include parameters indicating that the CMR beam is predicted and the IMR beam is measured or determined based on historical measurements. The network entity 105-a may send a trigger message (e.g., the control message 225) that triggers the UE 115-a to send the non-periodic 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 the CMR beam is to be predicted and the IMR beam is to be measured. Based on receiving the control message 225 triggering the non-periodic CSI reporting, the UE 115-a may perform a prediction for a CMR beam associated with a future time instance (e.g., based on the CSI reference resources used for the prediction), and the UE 115-a may generate a beam measurement for the IMR no later than the CSI reference resources associated with the non-periodic CSI reporting.
[0113] UE 115-a may send CSI report 230 to network entity 105-a based on control message 225. In generating CSI report 230, UE 115-a may predict channel measurements, interference measurements, or both sent from network entity 105-a as indicated by CSI report configuration 220 based at least on UE capability report 210 sent from UE 115-a to network entity 105-a. In some examples, UE 115-a may predict beam measurements or generate beam measurements based on historical measurements based on the capabilities of UE 115-a. In such cases, UE 115-a may generate corresponding measurements based on the capabilities of UE 115-a as indicated by UE capability report 210.
[0114] In some examples, the CSI reporting settings associated with beam prediction may include parameters such that a time limit for measurements is not configured or is set to not configured. Some techniques for predicting the quality of future beams may be based on a time series of historically determined measurements (e.g., L1-RSRP) using the same beam as input to a machine learning model to obtain prediction results. In order to use the time series of measurements, the time limit parameter may be set to not configured, because setting the time limit parameter to configured may limit UE 115-a to use only the most recent measurement resources for prediction, rather than using multiple measurements from different times.
[0115] For example, if the network entity 105-a configures the UE 115-a with a CSI reporting setting such that the channel is to be predicted with respect to a future time instance when determining a reporting number (e.g., a measurement or parameter value) for a CSI report, the time restriction parameter associated with the channel measurement may not be configured (e.g., set to not configured). For example, if the CSI reporting setting for a CSI report 230 indicates that the UE 115-a is to perform prediction for a CMR beam when generating a reporting number for the CSI report 230, the time restriction parameter (e.g., timeRestrictionForChannelMeasurements) may be set to not configured (e.g., may be set to notConfigured) for the CSI reporting setting. If the network entity 105-a has configured the UE 115-a to predict interference with respect to a future time instance when determining a reporting number (e.g., a measurement or parameter value) for a CSI report, the time restriction parameter associated with the interference measurement may not be configured (e.g., set to not configured). For example, if the CSI reporting setting for CSI report 230 indicates that UE 115-a is to perform prediction for IMR beams when generating a reporting number for CSI report 230, the time restriction parameter (e.g., timeRestrictionForInterferenceMeasurements) may be set to not configured (e.g., may be set to notConfigured) for that CSI reporting setting.
[0116] The CSI reporting settings associated with the historical measurements may include parameters such that a time limit for the measurement is configured or not configured. For example, if the network entity 105-a configures the UE 115-a with a CSI reporting setting for a CSI report so that a channel is to be derived based on historical measurements for the CSI report, the time limit parameter associated with the channel measurement may be configured (e.g., set to be configured) or may not be configured (e.g., set to be not configured). For example, if the CSI reporting settings for a CSI report 230 indicate that the UE 115-a is to derive a channel for the CSI report 230 based on historical measurements, the time limit parameter may be set to be configured or not configured for the CSI reporting setting. If the network entity 105-a has configured the UE 115-a to determine interference based on historical measurements for the CSI report, the time limit parameter associated with the interference measurement may not be set to be configured or not configured.
[0117] Figure 3 An example of a signaling timeline 300 supporting a timeline for time domain channel and interference prediction according to various aspects of the present disclosure is illustrated. In some examples, the signaling timeline 300 may implement aspects of the wireless communication system 100 or 200, or may be implemented by aspects of the wireless communication system 100 or 200. For example, the signaling timeline 300 may describe a timeline for a CSI report including a measurement-based or prediction-based measurement CMR or IMR or both sent by the UE 115 to the network entity 105, which may be an example of a corresponding device described herein.
[0118] In some examples, UE 115 may be configured or scheduled for a CSI reporting time slot 305 (e.g., time slot n). CSI reporting time slot 305 may be an uplink time slot in which UE 115 will send a CSI report. In some cases, UE 115 may receive a CSI report in time slot n. CSI_ref The indication of sending CSI report in CSI_ref The UE 115 may be provided with time to generate information for CSI reporting and to prepare to send 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) for sending CSI reports from the network entity 105. Thus, the CSI reporting slot 305 may be pre-configured according to the pattern sent from the network entity 105. The quantities reported for CSI reporting (e.g., beam measurements) may be with respect to future time instances, and the measurements of CMR and IMR may be based on historical measurements or predictions.
[0119] In some examples, measurements for CSI reporting slot 305 may be based on historical measurements 310. Historical measurements 310 (e.g., measurements of CMR / IMR) may be based on CSI reference resources 315 associated with CSI reporting slot 305. In some examples, historical measurements 310 may correspond to measurements performed no later than CSI reference resources 315. In some examples, historical measurements 310 may be based on a final channel / interference measurement before CSI reference resources 315. In some examples, historical measurements 310 may additionally or alternatively be based on one or more channel / interference measurements before CSI reference resources 315.
[0120] In some examples, measurements for CSI reporting slot 305 may be based on predicted channel or interference measurements. For example, predicted measurements 320 (e.g., predictions for CMR / IMR) may be based on the timing of future reference resources 325 (such as CSI reference resources for time domain beam or CSI prediction). Future reference resources 325 may be configured to carry channel measurement predictions for interference measurement predictions of CSI reports. For example, for situations where the number of reports for CSI reports associated at CSI reporting slot 305 may be predicted based on future time instances (e.g., future reference resources 325), future reference resources 325 may be introduced.
[0121] In some cases, the time domain of the future reference resource 325 may be based on an offset 330 of the predicted time slot n from the CSI reference resource 315. For example, the time domain of the future time instance 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 time slot 305 and a time slot associated with the future time instance. For example, the UE 115 may be requested to send a CSI report in the CSI reporting time slot 305 that indicates the predicted strongest 4 L1-RSRPs of the 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, the number of time 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 timing of the CSI reference resource 315 (e.g., which is based on the CSI reporting time slot n) plus the number of time slots of the offset 330.
[0122] For example, when predicting CQI for a future time instance, UE 115 may predict L1-SINR for a CMR and IMR pair that provides the highest L1-SINR among the CMR and IMR pairs, particularly the L1-SINR associated with the future time instance. Input for L1-SINR prediction may be based on historical measurements 310, but UE 115 may also have determined a predicted L1-SINR associated with a future time instance (e.g., no later than future reference resource 325). The prediction for L1-SINR may be based on any previous CMR and IMR measurements before CSI reference resource 315 (e.g., not just the last measurement before CSI reference resource 315) together with predicted measurements within a time slot up to offset 330 before CSI reference resource 315. In some cases, the prediction may be based on previous measurements, or previous measurements may be input to a machine learning model to generate measurement predictions.
[0123] In some implementations, the UE 115 may be configured or instructed by the network entity 105 to determine the number of CSI reports based on a prediction. For example, the number of reports associated with a CSI report setting for a CSI report may be configured to be determined based on a predicted measurement 345 for a future time instance, such as a future time slot. In some examples, the UE 115 may be configured with a first configuration to predict both a channel measurement and an interference measurement associated with a future time instance. The future interference prediction 335 for the time slot n+n prediction and the future channel prediction 340 for the time slot n+n prediction may be used to determine a predicted measurement 345 for the time slot n+n prediction, which may be sent in the CSI report during the CSI reporting time slot 305.
[0124] If the network entity 105 has configured or indicated to the UE 115 that channel measurements and interference measurements are to be predicted with respect to future time instances when determining the number of reports for the CSI report (e.g., the first configuration), then the time restriction parameters for channel measurements and interference measurements may be set or assumed to be set to not configured. For example, for the corresponding CSI report setting, the parameter timeRestrictionForChannelMeasurements and the parameter timeRestrictionForInterferenceMeasurements may each be set to notConfigured.
[0125] In some cases, the UE 115 may be configured with a second configuration in which the future channel prediction 340 for the slot n+n prediction may be used together with the interference measurement 350 derived from the historical measurement based on the prediction measurement 345 for the slot n+n prediction. In such cases, the interference measurement 350 may be performed on the CSI resources used for the interference measurement or the 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, for the corresponding CSI reporting setting, timeRestrictionForInterferenceMeasurements may be set to either notConfigured or Configured, and timeRestrictionForChannelMeasurements may be set to notConfigured.
[0126] In some cases, the UE 115 may be configured with a third configuration in which the future interference prediction 335 for the slot n+n prediction may be used together with the channel measurement 355 derived from the historical measurement based on the prediction measurement 345 for the slot n+n prediction. In such cases, the channel measurement 355 derived from the historical measurement may be performed using the SSB 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, for the corresponding CSI reporting setting, timeRestrictionForChannelMeasurements may be set to either notConfigured or Configured, and timeRestrictionForInterferenceMeasurements may be set to notConfigured.
[0127] When generating a prediction, a time series of historical measurements (e.g., L1-RSRP) of the same beam may be used as an input to the machine learning model to obtain a prediction result. To support the use of beams across a time series (e.g., across multiple time instances), the network entity 105 may ensure that the beamforming of the beam is kept the same. To predict future beam quality with respect to CMR (e.g., channel prediction for time slot n+n prediction), the timeRestrictionForChannelMeasurements parameter may be set to notConfigured, and to predict future beam quality with respect to IMR (e.g., interference prediction for time slot n+n prediction), the timeRestrictionForInterferenceMeasurements parameter may be set to notConfigured. By setting the corresponding timeRestriction parameter to notConfigured, beams across time domain opportunities may be considered to be the same, and filtering or combining of beams across time domain opportunities may be allowed. The UE 115 and the network entity 105 may use predictions to generate a more accurate number of beam reports than historical measurements alone, which may result in improvements in accuracy, latency, throughput, and power and overhead consumption.
[0128] Figure 4 An example of a process flow 400 supporting a timeline for time domain channel and interference prediction according to one or more aspects of the present disclosure is illustrated. In some examples, the process flow 400 may implement aspects of the wireless communication system 100 or 200, or may be implemented by aspects of the wireless communication 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.
[0129] At 405, UE 115-b may send a first control message to network entity 105-b, the first control message indicating the ability of UE 115-b to support beam prediction associated with CMR, IMR, 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, UE 115-b may indicate support for beam prediction associated with both CMR and IMR. In some examples, UE 115-b may indicate support for beam prediction associated with CMR but not IMR. In some examples, UE 115-b may indicate support for beam prediction associated with IMR but not CMR.
[0130] At 410, in some examples, UE 115-b may receive RRC signaling from network entity 105-b indicating a time slot offset between a first time slot for CSI reporting and a predicted reference resource during a future time slot. In some examples, the future reference resource described herein may be an example of a predicted reference resource. In some examples, the predicted CSI measurement may be based on the predicted reference resource. In some cases, the predicted reference resource during the future time slot may be offset in time from the measured reference resource by the time slot offset indicated by the RRC signaling. For example, the predicted reference resource may be offset from the measured reference resource by n predicted time slots.
[0131] At 415, UE 115-b may receive a second control message from network entity 105-b based on the capabilities of UE 115-b, the second control message indicating a set of parameters for CSI reporting for beam prediction associated with CMR, IMR, or both. For example, the second control message may configure one or more CSI reporting settings at UE 115-b. The CSI reporting settings may include one or more parameters indicating whether the channel measurement is associated with prediction or with history-based measurement. Additionally or alternatively, the CSI reporting settings may include one or more parameters indicating whether the interference measurement is associated with prediction or with history-based measurement.
[0132] In some cases, UE 115-b may receive an RRC message based at least on a parameter set for CSI reporting that indicates that a time limit is not configured for channel measurement, interference measurement, or both. In some examples, a CSI measurement that is predicted to be associated with a CMR may be based at least on the time limit for the channel measurement not being configured. For example, when the channel measurement is associated with the prediction, the time limit may be explicitly configured to be not configured, or based on the channel measurement being associated with the prediction, the time limit may be implicitly configured to be not configured. In some examples, a CSI measurement that is predicted to be associated with an IMR may be based on the time limit for the interference measurement not being configured.
[0133] In some cases, UE 115-b may receive an RRC message based on the capabilities of UE 115-b that indicates one or more parameter sets for predictive measurements associated with CMR, IMR, or both. In some examples, the second control message may indicate a parameter set for CSI reporting from the one or more parameter sets. For example, the RRC message may configure one or more CSI reporting settings at UE 115-b, and network entity 105-b may send the second control message to activate or trigger CSI reporting based on one of the CSI reporting settings.
[0134] For example, UE 115-b may receive the second control message from network entity 105-b as an RRC message that configures periodic CSI reporting according to a set of parameters for CSI reporting.In some cases, the CSI report may be a periodic CSI report.
[0135] In some other examples, UE 115-b may receive the second control message from network entity 105-b as a MAC-CE message to activate semi-persistent CSI reporting according to a set of parameters for CSI reporting. For example, network entity 105-b may configure one or more CSI reporting settings at UE 115-b via higher layer signaling (e.g., RRC signaling), and the second control message may indicate one of the CSI reporting settings to be activated for semi-persistent CSI reporting. In some cases, the CSI report may be a semi-persistent CSI report.
[0136] In another example, UE 115-b may receive a MAC-CE message or a DCI message from network entity 105-b that triggers aperiodic CSI reporting according to a set of parameters for CSI reporting. For example, network entity 105-b may configure one or more CSI reporting settings at UE 115-b via higher layer signaling (e.g., RRC signaling), and the second control message may trigger aperiodic CSI reporting according to one of the CSI reporting settings. In some cases, the CSI report may be an aperiodic CSI report.
[0137] At 420, UE 115-b may send a CSI report to network entity 105-b based on the parameter set for CSI reporting, the CSI report indicating a predicted CSI measurement for the beam set during a future time slot. In some examples, the predicted CSI measurement may be based on a predicted measurement of CMR or an interference measurement of IMR, both of which may be during or before the future time slot in time. In some other examples, the predicted CSI measurement may include a predicted channel quality indicator, a predicted rank indicator, a predicted pre-decoder matrix indicator, or any combination thereof for the beam set during the future time slot.
[0138] Figure 5 A block diagram 500 of a device 505 supporting a timeline for time domain channel and interference prediction according to one or more aspects of the present disclosure is shown. The device 505 may be an example of aspects of the UE 115 as described herein. The device 505 may include a receiver 510, a transmitter 515, and a communication manager 520. The device 505 may also include a processor (not shown). Each of these components may communicate with each other (e.g., via one or more buses).
[0139] The receiver 510 may provide 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 channels and interference prediction). The information may be communicated to other components of the device 505. The receiver 510 may utilize a single antenna or a collection of multiple antennas.
[0140] The transmitter 515 may provide 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 channels and interference prediction). In some examples, the transmitter 515 may be co-located with the receiver 510 in a transceiver module. The transmitter 515 may utilize a single antenna or a collection of multiple antennas.
[0141] The communication 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 the timeline for time domain channel and interference prediction as described herein. For example, the communication manager 520, the receiver 510, the transmitter 515, or various combinations thereof, or components thereof, may support methods for performing one or more of the functions described herein.
[0142] In some examples, the communication manager 520, the receiver 510, the transmitter 515, or various combinations or components thereof may be implemented in hardware (e.g., in a communication management circuit). 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 that is configured to or otherwise supports components for performing the functions described herein. In some examples, the processor and a memory coupled to the processor may be configured to perform one or more of the functions described herein (e.g., by executing instructions stored in the memory by the processor).
[0143] Additionally or alternatively, in some examples, the communication manager 520, the receiver 510, the transmitter 515, or various combinations or components thereof may be implemented in code executed by a processor (e.g., as communication management software or firmware). If implemented in code executed by a processor, the functionality of the communication manager 520, the receiver 510, the transmitter 515, or various combinations or components thereof may be performed by a general purpose processor (e.g., configured as or otherwise supporting components for performing the functions described in the present disclosure), a DSP, a CPU, an ASIC, an FPGA, a microcontroller, or any combination of these or other programmable logic devices.
[0144] In some examples, communication manager 520 may be configured to perform various operations (e.g., receive, obtain, monitor, output, send) using or otherwise cooperating with receiver 510, transmitter 515, or both. For example, communication manager 520 may receive information from receiver 510, transmit information to transmitter 515, or be integrated in conjunction with receiver 510, transmitter 515, or both to obtain information, output information, or perform various other operations as described herein.
[0145] According to examples as disclosed herein, the communication manager 520 may support wireless communications at a UE. For example, the communication manager 520 may be configured to or otherwise support components for sending a first control message indicating the UE's ability to support beam prediction associated with CMR or IMR or both. The communication manager 520 may be configured to or otherwise support components for receiving a second control message based on the UE's ability to indicate a parameter set for a CSI report for beam prediction associated with CMR or IMR or both. The communication manager 520 may be configured to or otherwise support components for sending a CSI report based on the parameter set, the CSI report indicating a predicted CSI measurement for a beam set during a future time slot.
[0146] By including or configuring the communication manager 520 according to the examples described herein, the device 505 (e.g., a processor controlling the receiver 510, the transmitter 515, the communication manager 520, or a combination thereof or otherwise coupled thereto) can support techniques for reducing power consumption and reducing overhead by utilizing predictions for channel measurements or interference measurements or both. These techniques can provide a timeline for performing channel measurement predictions or interference measurement predictions, which can improve the reliability of CSI reports carrying channel predictions or interference predictions, thereby reducing overhead and power consumption from measurement-based CSI reports.
[0147] Figure 6A block diagram 600 of a device 605 supporting a timeline for time domain channel and interference prediction according to one or more aspects of the present disclosure is shown. The device 605 may be an example of aspects of the device 505 or UE 115 as described herein. The device 605 may include a receiver 610, a transmitter 615, and a communication manager 620. The device 605 may also include a processor (not shown). Each of these components may communicate with each other (e.g., via one or more buses).
[0148] The receiver 610 may provide 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 channels and interference prediction). The information may be communicated to other components of the device 605. The receiver 610 may utilize a single antenna or a collection of multiple antennas.
[0149] The transmitter 615 may provide 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 channels and interference prediction). In some examples, the transmitter 615 may be co-located with the receiver 610 in a transceiver module. The transmitter 615 may utilize a single antenna or a collection of multiple antennas.
[0150] The device 605 or its various components may be examples of components for performing various aspects of a timeline for time domain channel and interference prediction as described herein. For example, the communication manager 620 may include a prediction capability indication component 625, a predictive CSI request component 630, a predictive CSI reporting component 635, or any combination thereof. The communication manager 620 may be an example of various aspects of the communication manager 520 as described herein. In some examples, the communication manager 620 or its various components may be configured to use or otherwise cooperate with the receiver 610, the transmitter 615, or both to perform various operations (e.g., receive, obtain, monitor, output, send). For example, the communication manager 620 may receive information from the receiver 610, transmit information to the transmitter 615, or be integrated with the receiver 610, the transmitter 615, or both to obtain information, output information, or perform various other operations as described herein.
[0151] According to examples as disclosed herein, the communication manager 620 may support wireless communications at the UE. The predicted capability indication component 625 may be configured to or otherwise support components for sending a first control message indicating the capability of the UE to support beam prediction associated with CMR or IMR or both. The predictive CSI request component 630 may be configured to or otherwise support components for receiving a second control message based on the capability of the UE, the second control message indicating a parameter set for a CSI report for beam prediction associated with CMR or IMR or both. The predictive CSI reporting component 635 may be configured to or otherwise support components for sending a CSI report based on the parameter set, the CSI report indicating a predicted CSI measurement for a beam set during a future time slot.
[0152] Figure 7 A block diagram 700 of a communication manager 720 supporting a timeline for time domain channel and interference prediction according to one or more aspects of the present disclosure is shown. The communication manager 720 may be an example of aspects of the communication manager 520, the communication manager 620, or both as described herein. The communication manager 720 or its various components may be examples of components for performing various aspects of the timeline for time domain channel and interference prediction as described herein. For example, the communication manager 720 may include a prediction capability indication 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 limit configuration component 750, or any combination thereof. Each of these components may communicate directly or indirectly with each other (e.g., via one or more buses).
[0153] According to examples as disclosed herein, the communication manager 720 may support wireless communications at a UE. The predicted capability indication component 725 may be configured to or otherwise support components for sending a first control message indicating the capability of the UE to support beam prediction associated with CMR or IMR or both. The predictive CSI request component 730 may be configured to or otherwise support components for receiving a second control message based on the capability of the UE, the second control message indicating a parameter set for a CSI report for beam prediction associated with CMR or IMR or both. The predictive CSI reporting component 735 may be configured to or otherwise support components for sending a CSI report based on the parameter set, the CSI report indicating a predicted CSI measurement for a beam set during a future time slot.
[0154] In some examples, the reference resource offset component 740 may be configured as or otherwise support components for receiving radio resource control signaling indicating a time slot offset between a first time slot for CSI reporting and a predicted reference resource during a future time slot, wherein the predicted CSI measurement is based on the predicted reference resource.
[0155] In some examples, the predicted reference resource during the future time slot is offset in time from the measured reference resource by a time slot offset.
[0156] In some examples, CSI measurement prediction component 745 may be configured or otherwise support means for predicting CSI measurements associated with CMRs based on time constraints for channel measurements not being configured.
[0157] In some examples, CSI measurement prediction component 745 may be configured or otherwise support means for predicting CSI measurements associated with IMR based on time restrictions for interference measurements not being configured.
[0158] In some examples, time limit configuration component 750 may be configured to or otherwise support means for receiving a radio resource control message based on a parameter set indicating that a time limit is not configured for channel measurements or interference measurements or both.
[0159] In some examples, the time limit configuration component 750 may be configured to or otherwise support components for receiving a radio resource control message based on the UE's capabilities, the radio resource control message indicating one or more parameter sets for predictive measurements associated with CMR or IMR or both, wherein the second control message indicates a parameter set from the one or more parameter sets.
[0160] In some examples, to support receiving a second control message, predictive CSI request component 730 may be configured or otherwise support means for receiving a radio resource control message that configures a periodic CSI report according to a parameter set, wherein the CSI report is a periodic CSI report.
[0161] In some examples, to support receiving a second control message, the predictive CSI request component 730 may be configured or otherwise support components for receiving a medium access control message that activates semi-persistent CSI reporting according to a parameter set, wherein the CSI report is a semi-persistent CSI report.
[0162] In some examples, to support receiving a second control message, the predictive CSI request component 730 may be configured or otherwise support components for receiving a medium access control message that triggers an aperiodic CSI report based on a parameter set, wherein the CSI report is an aperiodic CSI report.
[0163] In some examples, the predicted CSI measurement is based on a predicted channel measurement of the CMR or an interference measurement of the IMR during or before a future time slot in time.
[0164] In some examples, the predicted CSI measurement includes a predicted channel quality indicator, a predicted rank indicator, a predicted precoder matrix indication, or any combination thereof for a set of beams during a future time slot.
[0165] Figure 8 A diagram of a system 800 including a device 805 supporting a timeline for time domain channel and interference prediction according to one or more aspects of the present disclosure is shown. The device 805 may be an example of a device 505, a device 605, or a UE 115 as described herein, or include components thereof. 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 two-way voice and data communications, including components for sending and receiving communications, such as a communication manager 820, an input / output (I / O) controller 810, a transceiver 815, an antenna 825, a memory 830, a code 835, and a processor 840. These components may be electronically communicated or otherwise coupled (e.g., operatively, communicatively, functionally, electronically, electrically) via one or more buses (e.g., a bus 845).
[0166] I / O controller 810 can manage input signals and output signals of device 805. I / O controller 810 can also manage peripheral devices that are not integrated into device 805. In some cases, I / O controller 810 can represent a physical connection or port to an external peripheral device. In some cases, I / O controller 810 can utilize an operating system, such as or another known operating system. Additionally or alternatively, I / O controller 810 may represent or interact with a modem, keyboard, mouse, touch screen, or similar device. In some cases, I / O controller 810 may be implemented as part of a processor, such as processor 840. In some cases, a user may interact with device 805 via I / O controller 810 or via hardware components controlled by I / O controller 810.
[0167] 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 bidirectionally via one or more antennas 825, a wired or wireless link, as described herein. For example, the transceiver 815 may represent a wireless transceiver and may communicate bidirectionally with another wireless transceiver. The transceiver 815 may also include a modem for: modulating packets; providing the modulated packets to one or more antennas 825 for transmission; and demodulating packets received from one or more antennas 825. The transceiver 815 or the transceiver 815 and one or more antennas 825 may be examples of transmitters 515, transmitters 615, receivers 510, receivers 610, or any combination thereof or components thereof as described herein.
[0168] 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 a system memory or another type of memory. In some cases, the code 835 may not be directly executable by the processor 840, but may (e.g., when compiled and executed) cause the computer to perform the functions described herein. In some cases, the memory 830 may also include, among other things, a basic I / O system (BIOS) that may control basic hardware or software operations, such as interaction with peripheral components or devices.
[0169] 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, the 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., a memory 830) to cause the device 805 to perform various functions (e.g., functions or tasks supporting a timeline 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 a memory 830 coupled to or coupled to the processor 840, and the processor 840 and the memory 830 are configured to perform the various functions described herein.
[0170] According to examples as disclosed herein, the communication manager 820 may support wireless communications at a UE. For example, the communication manager 820 may be configured to or otherwise support components for sending a first control message indicating the UE's ability to support beam prediction associated with CMR or IMR or both. The communication manager 820 may be configured to or otherwise support components for receiving a second control message based on the UE's ability to indicate a parameter set for a CSI report for beam prediction associated with CMR or IMR or both. The communication manager 820 may be configured to or otherwise support components for sending a CSI report based on the parameter set, the CSI report indicating a predicted CSI measurement for a beam set during a future time slot.
[0171] By including or configuring a communication manager 820 according to an example as described herein, the device 805 may support techniques for reducing power and reducing overhead by utilizing predictions for channel measurements or interference measurements or both. These techniques may provide a timeline for performing channel measurement predictions or interference measurement predictions, which may improve the reliability of CSI reports carrying channel predictions or interference predictions, thereby reducing overhead and power consumption from measurement-based CSI reports. In some examples, the communication manager 820 may be configured to perform various operations (e.g., receiving, monitoring, transmitting) using or otherwise cooperating with the transceiver 815, one or more antennas 825, or any combination thereof. Although the communication manager 820 is illustrated as a separate component, in some examples, one or more functions described with reference to the communication manager 820 may be supported or executed by the processor 840, the memory 830, the code 835, or any combination thereof. For example, the code 835 may include instructions that can be executed by the processor 840 to cause the device 805 to perform various aspects of the timeline 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.
[0172] Fig. 9 A block diagram 900 of a device 905 supporting a timeline for time domain channel and interference prediction according to one or more aspects of the present disclosure is shown. The device 905 may be an example of aspects of the network entity 105 as described herein. The device 905 may include a receiver 910, a transmitter 915, and a communication manager 920. The device 905 may also include a processor (not shown). Each of these components may communicate with each other (e.g., via one or more buses).
[0173] The receiver 910 may provide means for obtaining (e.g., receiving, determining, identifying) information associated with various channels (e.g., control channels, data channels, information channels, channels associated with a protocol stack), such as user data, control information, or any combination thereof (e.g., I / Q samples, symbols, packets, protocol data units, service data units). The information may be passed 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, optical) interfaces, wireless interfaces, or any combination thereof.
[0174] The transmitter 915 may provide a means for outputting (e.g., sending, providing, conveying, transmitting) information generated by other components of the device 905. For example, the transmitter 915 may output information associated with various channels (e.g., control channels, data channels, information channels, channels associated with a protocol stack) such as user data, control information, or any combination thereof (e.g., I / Q samples, symbols, packets, protocol data units, service data units). In some examples, the transmitter 915 may support outputting information by sending signals via one or more antennas. Additionally or alternatively, the transmitter 915 may support outputting information by sending signals via one or more wired (e.g., electrical, optical) 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 a modem or be coupled to a modem.
[0175] The communication 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 the timeline for time domain channel and interference prediction as described herein. For example, the communication manager 920, the receiver 910, the transmitter 915, or various combinations thereof, or components thereof, may support methods for performing one or more of the functions described herein.
[0176] In some examples, the communication manager 920, the receiver 910, the transmitter 915, or various combinations or components thereof may be implemented in hardware (e.g., in a communication management circuit). 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 that is configured as or otherwise supports components for performing the functions described in the present disclosure. In some examples, a processor and a memory coupled to the processor may be configured to perform one or more of the functions described herein (e.g., by executing instructions stored in the memory by the processor).
[0177] Additionally or alternatively, in some examples, the communication manager 920, the receiver 910, the transmitter 915, or various combinations or components thereof may be implemented in code executed by a processor (e.g., as communication management software or firmware). If implemented in code executed by a processor, the functionality of the communication manager 920, the receiver 910, the transmitter 915, or various combinations or components thereof may be performed by a general purpose processor (e.g., configured as or otherwise supporting components for performing the functions described in the present disclosure), a DSP, a CPU, an ASIC, an FPGA, a microcontroller, or any combination of these or other programmable logic devices.
[0178] In some examples, the communication manager 920 may be configured to perform various operations (e.g., receive, obtain, monitor, output, transmit) using or otherwise cooperating with the receiver 910, the transmitter 915, or both. For example, the communication manager 920 may receive information from the receiver 910, transmit information to the transmitter 915, or be integrated in conjunction with the receiver 910, the transmitter 915, or both to obtain information, output information, or perform various other operations as described herein.
[0179] According to examples as disclosed herein, the communication manager 920 may support wireless communications at a network entity. For example, the communication manager 920 may be configured to or otherwise support components for receiving a first control message indicating the capability of the UE to support beam prediction associated with CMR or IMR or both. The communication manager 920 may be configured to or otherwise support components for sending a second control message based on the capability of the UE, the second control message indicating a parameter set for a CSI report for beam prediction associated with CMR or IMR or both. The communication manager 920 may be configured to or otherwise support components for receiving a CSI report based on the parameter set, the CSI report indicating a predicted CSI measurement for a beam set during a future time slot.
[0180] By including or configuring the communication manager 920 according to the examples described herein, the device 905 (e.g., a processor controlling the receiver 910, the transmitter 915, the communication manager 920, or a combination thereof or otherwise coupled thereto) can support techniques for reducing power and processing overhead by utilizing predictions for channel measurements or interference measurements or both. These techniques can provide a timeline for performing channel measurement predictions or interference measurement predictions, which can improve the reliability of CSI reports carrying channel predictions or interference predictions, thereby reducing overhead and power consumption from measurement-based CSI reports.
[0181] Fig.10A block diagram 1000 of a device 1005 supporting a timeline for time domain channel and interference prediction according to one or more aspects of the present disclosure is shown. The device 1005 may be an example of aspects of the device 905 or network entity 105 as described herein. The device 1005 may include a receiver 1010, a transmitter 1015, and a communication manager 1020. The device 1005 may also include a processor (not shown). Each of these components may communicate with each other (e.g., via one or more buses).
[0182] The receiver 1010 may provide means for obtaining (e.g., receiving, determining, identifying) information associated with various channels (e.g., control channels, data channels, information channels, channels associated with a protocol stack), such as user data, control information, or any combination thereof (e.g., I / Q samples, symbols, packets, protocol data units, service data units). The information may be passed 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, optical) interfaces, wireless interfaces, or any combination thereof.
[0183] The transmitter 1015 may provide a means for outputting (e.g., sending, providing, conveying, transmitting) information generated by other components of the device 1005. For example, the transmitter 1015 may output information associated with various channels (e.g., control channels, data channels, information channels, channels associated with a protocol stack) such as user data, control information, or any combination thereof (e.g., I / Q samples, symbols, packets, protocol data units, service data units). In some examples, the transmitter 1015 may support outputting information by sending signals via one or more antennas. Additionally or alternatively, the transmitter 1015 may support outputting information by sending signals via one or more wired (e.g., electrical, optical) 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 a modem or be coupled to a modem.
[0184] The device 1005 or its various components may be examples of components for performing various aspects of a timeline for time domain channel and interference prediction as described herein. For example, the communication manager 1020 may include a prediction capability indication component 1025, a CSI request component 1030, a CSI report receiving component 1035, or any combination thereof. The communication manager 1020 may be an example of various aspects of the communication manager 920 as described herein. In some examples, the communication manager 1020 or its various components may be configured to use or otherwise cooperate with the receiver 1010, the transmitter 1015, or both to perform various operations (e.g., receive, obtain, monitor, output, send). For example, the communication manager 1020 may receive information from the receiver 1010, transmit information to the transmitter 1015, or integrate with the receiver 1010, the transmitter 1015, or both to obtain information, output information, or perform various other operations as described herein.
[0185] According to examples as disclosed herein, the communication manager 1020 may support wireless communications at a network entity. The predicted capability indication component 1025 may be configured to or otherwise support components for receiving a first control message indicating the capability of the UE to support beam prediction associated with CMR or IMR or both. The CSI request component 1030 may be configured to or otherwise support components for sending a second control message based on the capability of the UE, the second control message indicating a parameter set for a CSI report for beam prediction associated with CMR or IMR or both. The CSI report receiving component 1035 may be configured to or otherwise support components for receiving a CSI report based on the parameter set, the CSI report indicating predicted CSI measurements for a beam set during a future time slot.
[0186] Fig.11A block diagram 1100 of a communication manager 1120 supporting a timeline for time domain channel and interference prediction according to one or more aspects of the present disclosure is shown. The communication manager 1120 may be an example of aspects of the communication manager 920, the communication manager 1020, or both as described herein. The communication manager 1120 or its various components may be examples of components for performing various aspects of the timeline for time domain channel and interference prediction as described herein. For example, the communication manager 1120 may include a prediction capability indication component 1125, a CSI request component 1130, a CSI report receiving component 1135, an offset indication component 1140, a time limit configuration component 1145, or any combination thereof. Each of these components may communicate with each other directly or indirectly (e.g., via one or more buses), which communication may include communication within a protocol layer of a protocol stack, communication 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.
[0187] According to examples as disclosed herein, the communication manager 1120 may support wireless communications at a network entity. The predicted capability indication component 1125 may be configured to or otherwise support components for receiving a first control message indicating the capability of the UE to support beam prediction associated with CMR or IMR or both. The CSI request component 1130 may be configured to or otherwise support components for sending a second control message based on the capability of the UE, the second control message indicating a parameter set for a CSI report for beam prediction associated with CMR or IMR or both. The CSI report receiving component 1135 may be configured to or otherwise support receiving components for receiving a CSI report based on the parameter set, the CSI report indicating predicted CSI measurements for a beam set during a future time slot.
[0188] In some examples, the offset indication component 1140 may be configured as or otherwise support components for sending radio resource control signaling that indicates a time slot offset between a first time slot for CSI reporting and a predicted reference resource during a future time slot, wherein the predicted CSI measurement is based on the predicted reference resource.
[0189] In some examples, the predicted reference resource during the future time slot is offset in time from the measured reference resource by a time slot offset.
[0190] In some examples, time limit configuration component 1145 may be configured to or otherwise support components for sending a radio resource control message based on a parameter set indicating that a time limit is not configured for channel measurement or interference measurement or both.
[0191] In some examples, the time limit configuration component 1145 may be configured as or otherwise support components for sending a radio resource control message based on the UE's capabilities, the radio resource control message indicating one or more parameter sets for predictive measurements associated with CMR or IMR or both, wherein the second control message indicates a parameter set from the one or more parameter sets.
[0192] In some examples, to support sending a second control message, CSI request component 1130 may be configured as or otherwise support components for sending a radio resource control message that configures a periodic CSI report according to a parameter set, wherein the CSI report is a periodic CSI report.
[0193] In some examples, to support sending a second control message, CSI request component 1130 may be configured or otherwise support components for sending a medium access control message that activates a semi-persistent CSI report based on a parameter set, where the CSI report is a semi-persistent CSI report.
[0194] In some examples, to support sending a second control message, CSI request component 1130 may be configured as or otherwise support components for sending a medium access control message that triggers an aperiodic CSI report based on a parameter set, wherein the CSI report is an aperiodic CSI report.
[0195] In some examples, the predicted CSI measurement is based on a predicted channel measurement of the CMR or an interference measurement of the IMR during or before a future time slot in time.
[0196] In some examples, the predicted CSI measurement includes a predicted channel quality indicator, a predicted rank indicator, a predicted precoder matrix indication, or any combination thereof for a set of beams during a future time slot.
[0197] Fig.12A diagram of a system 1200 including a device 1205 supporting a timeline for time domain channel and interference prediction according to one or more aspects of the present disclosure is shown. The device 1205 may be an example of a device 905, a device 1005, or a network entity 105 as described herein, or include components thereof. The device 1205 may communicate with one or more network entities 105, one or more UEs 115, or any combination thereof, which may include communication through one or more wired interfaces, through one or more wireless interfaces, or any combination thereof. The device 1205 may include components that support output and acquisition of communications, such as a communication manager 1220, a transceiver 1210, an antenna 1215, a memory 1225, a code 1230, and a processor 1235. These components may be electronically communicated or otherwise coupled (e.g., operatively, communicatively, functionally, electronically, electrically) via one or more buses (e.g., bus 1240).
[0198] As described herein, the transceiver 1210 may support bidirectional communication via a wired link, a wireless link, or both. In some examples, the transceiver 1210 may include a wired transceiver and may communicate bidirectionally with another wired transceiver. Additionally or alternatively, in some examples, the transceiver 1210 may include a wireless transceiver and may communicate bidirectionally with another wireless transceiver. In some examples, the device 1205 may include one or more antennas 1215, which may be capable of sending or receiving wireless transmissions (e.g., concurrently). The transceiver 1210 may also include a modem for: modulating a signal; providing the modulated signal for transmission (e.g., via one or more antennas 1215, via a wired transmitter); receiving a modulated signal (e.g., from one or more antennas 1215, from a wired receiver); and demodulating a signal. In some implementations, the transceiver 1210 may include one or more interfaces, such as one or more interfaces coupled to one or more antennas 1215 configured to support various receiving or obtaining operations, or one or more interfaces coupled to one or more antennas 1215 configured to support various transmitting operations or output operations, or a combination thereof. In some implementations, the transceiver 1210 may include or be configured to be coupled to one or more processors or memory components that are operable to: perform or support operations based on received or obtained information or signals; or generate information or other signals for transmission or other output, or any combination thereof. In some implementations, the transceiver 1210, or the transceiver 1210 and one or more antennas 1215, or the transceiver 1210 and one or more antennas 1215 and one or more processors or memory components (e.g., processor 1235, or memory 1225, or both) may be included in a chip or chip assembly installed in the device 1205. In some examples, the transceiver may be operable to support communications via one or more communication links (eg, communication link 125, backhaul communication link 120, midhaul communication link 162, fronthaul communication link 168).
[0199] Memory 1225 may include RAM and ROM. Memory 1225 may store computer-readable, computer-executable code 1230 including instructions that, when executed by processor 1235, cause device 1205 to perform various functions described herein. Code 1230 may be stored in a non-transitory computer-readable medium such as system memory or another type of memory. In some cases, code 1230 may not be directly executable by processor 1235, but may (e.g., when compiled and executed) cause a computer to perform the functions described herein. In some cases, memory 1225 may also include, among other things, a BIOS that may control basic hardware or software operations, such as interaction with peripheral components or devices.
[0200] Processor 1235 may include an intelligent hardware device (e.g., a general-purpose processor, DSP, ASIC, CPU, FPGA, microcontroller, programmable logic device, discrete gate or transistor logic, discrete hardware components, or any combination thereof). In some cases, processor 1235 may be configured to operate a memory array using a memory controller. In some other cases, the memory controller may be integrated into processor 1235. Processor 1235 may be configured to execute computer-readable instructions stored in a memory (e.g., memory 1225) to enable device 1205 to perform various functions (e.g., functions or tasks supporting timelines for time domain channel and interference prediction). For example, device 1205 or a component of device 1205 may include processor 1235 and memory 1225 coupled to processor 1235, and processor 1235 and memory 1225 are configured to perform various functions described herein. Processor 1235 may be an example of a cloud computing platform (e.g., one or more physical nodes and supporting software such as an operating system, a virtual machine, or a container instance), which may host functions for performing functions of device 1205 (e.g., by executing code 1230). 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 specific implementations, the processor 1235 may be a component of a processing system. A processing system may generally refer to a system or a series of machines or components that receive inputs and process these inputs to produce a set of outputs (which may be passed to other systems or components (e.g., the device 1205)). For example, the processing system of the device 1205 may refer to a system including various other components or subcomponents of the device 1205, such as the processor 1235, or the transceiver 1210, or the communication 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 (such as inputs or signals) received from other components 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 for outputting information or for obtaining 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 the same interface configured to output information and obtain information, as well as other specific implementations. In some specific implementations, the one or more interfaces may refer to an interface between a processing system of a chip or modem and a transmitter, so that the device 1205 can send information output from the chip or modem.Additionally or alternatively, in some implementations, the one or more interfaces may refer to an interface between a processing system of a chip or modem and a receiver, such that the device 1205 may obtain information or signal input, and the information may be passed to the processing system. One of ordinary skill in the art will readily recognize that the first interface may also obtain information or signal input, and the second interface may also output information or signal output.
[0201] In some examples, bus 1240 may support communications of a protocol layer (e.g., within a protocol layer) of a protocol stack. In some examples, 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 device 1205, or communications performed between different components of device 1205 that may be co-located or may be located in different locations (e.g., where device 1205 may refer to a system in which one or more of communication manager 1220, transceiver 1210, memory 1225, code 1230, and processor 1235 may be located in one of the different components or divided between the different components).
[0202] In some examples, the communication manager 1220 may manage aspects of communications with the core network 130 (e.g., via one or more wired or wireless backhaul links). For example, the communication manager 1220 may manage the delivery of data communications for client devices, such as one or more UEs 115. In some examples, the communication manager 1220 may manage communications with other network entities 105 and may include a controller or scheduler for controlling communications with the UEs 115 in coordination with the other network entities 105. In some examples, the communication manager 1220 may support an X2 interface within an LTE / LTE-A wireless communication network technology to provide communications between network entities 105.
[0203] According to examples as disclosed herein, the communication manager 1220 may support wireless communications at a network entity. For example, the communication manager 1220 may be configured to or otherwise support components for receiving a first control message indicating the capability of the UE to support beam prediction associated with CMR or IMR or both. The communication manager 1220 may be configured to or otherwise support components for sending a second control message based on the capability of the UE, the second control message indicating a parameter set for a CSI report for beam prediction associated with CMR or IMR or both. The communication manager 1220 may be configured to or otherwise support components for receiving a CSI report based on the parameter set, the CSI report indicating a predicted CSI measurement for a beam set during a future time slot.
[0204] By including or configuring the communication manager 1220 according to the examples described herein, the device 1205 can support techniques for reducing power and processing overhead by utilizing predictions for channel measurements or interference measurements or both. These techniques can provide a timeline for performing channel measurement predictions or interference measurement predictions, which can improve the reliability of CSI reports carrying channel predictions or interference predictions, thereby reducing overhead and power consumption from measurement-based CSI reports.
[0205] In some examples, the communication manager 1220 may be configured to perform various operations (e.g., receive, obtain, monitor, output, transmit) using or otherwise cooperating with the transceiver 1210, one or more antennas 1215 (e.g., where applicable), or any combination thereof. Although the communication manager 1220 is illustrated as a separate component, in some examples, one or more functions described with reference to the communication manager 1220 may be supported or performed by the transceiver 1210, the processor 1235, the memory 1225, the code 1230, or any combination thereof. For example, the code 1230 may include instructions that are executable by the processor 1235 to cause the device 1205 to perform various aspects of the timeline 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.
[0206] Fig.13 A flowchart illustrating a method 1300 for supporting a timeline for time domain channel and interference prediction according to one or more aspects of the present disclosure is shown. The operations of the method 1300 may be implemented by a UE or a component thereof as described herein. For example, the operations of the method 1300 may be implemented by a UE or a component thereof as described in reference to Figures 1 to 8 The described UE 115 may be performed. In some examples, the UE may execute an instruction set to control the functional elements of the UE to perform the described functions. Additionally or alternatively, the UE may use dedicated hardware to perform various aspects of the described functions.
[0207] At 1305, the method may include sending a first control message indicating that the UE supports a capability of beam prediction associated with a channel measurement resource or an interference measurement resource or both. The operations of 1305 may be performed according to examples as disclosed herein. In some examples, aspects of the operations of 1305 may be performed as described in reference to Figure 7 The described predictive capabilities instruct component 725 to perform.
[0208] At 1310, the method may include receiving a second control message based at least in part on the capability of the UE, the second control message indicating a set of parameters for a channel state information report for beam prediction associated with the channel measurement resource or the interference measurement resource or both. The operations of 1310 may be performed according to examples as disclosed herein. In some examples, aspects of the operations of 1310 may be performed as described in reference to Figure 7 The described predictive CSI request component 730 is performed.
[0209] At 1315, the method may include sending the channel state information report based at least in part on the set of parameters, the channel state information report indicating predicted channel state information measurements for the beam set during a future time slot. The operations of 1315 may be performed according to examples as disclosed herein. In some examples, aspects of the operations of 1315 may be performed as described in reference to Figure 7 The described predictive CSI reporting component 735 is performed.
[0210] Fig.14 A flowchart illustrating a method 1400 for supporting a timeline for time domain channel and interference prediction according to one or more aspects of the present disclosure is shown. The operations of the method 1400 may be implemented by a UE or a component thereof as described herein. For example, the operations of the method 1400 may be implemented by a UE or a component thereof as described in reference to Figures 1 to 8 The described UE 115 may be performed. In some examples, the UE may execute an instruction set to control the functional elements of the UE to perform the described functions. Additionally or alternatively, the UE may use dedicated hardware to perform various aspects of the described functions.
[0211] At 1405, the method may include sending a first control message indicating that the UE supports a capability of beam prediction associated with a channel measurement resource or an interference measurement resource or both. The operations of 1405 may be performed according to examples as disclosed herein. In some examples, aspects of the operations of 1405 may be performed as described in reference to Figure 7 The described predictive capabilities instruct component 725 to perform.
[0212] At 1410, the method may include receiving radio resource control signaling indicating a time slot offset between a first time slot for channel state information reporting and a predicted reference resource during a future time slot, wherein the predicted channel state information measurement is based at least in part on the predicted reference resource. The operations of 1410 may be performed according to examples as disclosed herein. In some examples, aspects of the operations of 1410 may be performed by Figure 7 The described reference resource offset component 740 is performed.
[0213] At 1415, the method may include receiving a second control message based at least in part on the capability of the UE, the second control message indicating a set of parameters for a channel state information report for the beam prediction associated with the channel measurement resource or the interference measurement resource or both. The operations of 1415 may be performed according to examples as disclosed herein. In some examples, aspects of the operations of 1415 may be performed as described in reference to Figure 7 The described predictive CSI request component 730 is performed.
[0214] At 1420, the method may include sending the channel state information report based at least in part on the set of parameters, the channel state information report indicating predicted channel state information measurements for the beam set during a future time slot. The operations of 1420 may be performed according to examples as disclosed herein. In some examples, aspects of the operations of 1420 may be performed as described in reference to Figure 7 The described predictive CSI reporting component 735 is performed.
[0215] Fig.15 A flow chart illustrating a method 1500 for supporting a timeline for time domain channel and interference prediction according to one or more aspects of the present disclosure is shown. The operations of the method 1500 may be implemented by a network entity or a component thereof as described herein. For example, the operations of the method 1500 may be implemented by a network entity or a component thereof as described in reference to Figures 1 to 4 as well as Figures 9 to 12 The network entity described herein may be executed by the network entity described herein. In some examples, the network entity may execute an instruction set to control the functional elements of the network entity to perform the described functions. Additionally or alternatively, the network entity may use dedicated hardware to perform various aspects of the described functions.
[0216] At 1505, the method may include receiving 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 1505 may be performed according to examples as disclosed herein. In some examples, aspects of the operations of 1505 may be performed as described in reference to Fig.11 The described predictive capabilities instruct component 1125 to perform.
[0217] At 1510, the method may include sending a second control message based at least in part on the capability of the UE, the second control message indicating a set of parameters for a channel state information report for the beam prediction associated with the channel measurement resource or the interference measurement resource or both. The operations of 1510 may be performed according to examples as disclosed herein. In some examples, aspects of the operations of 1510 may be performed as described in reference to Fig.11 The described CSI request component 1130 is performed.
[0218] At 1515, the method may include receiving the channel state information report based at least in part on the set of parameters, the channel state information report indicating predicted channel state information measurements for the beam set during a future time slot. The operations of 1515 may be performed according to examples as disclosed herein. In some examples, aspects of the operations of 1515 may be performed as described in reference to Fig.11 The described CSI report receiving component 1135 is performed.
[0219] Fig.16 A flow chart illustrating a method 1600 for supporting a timeline for time domain channel and interference prediction according to one or more aspects of the present disclosure is shown. The operations of the method 1600 may be implemented by a network entity or a component thereof as described herein. For example, the operations of the method 1600 may be implemented by a network entity or a component thereof as described in reference to Figures 1 to 4 as well as Figures 9 to 12 The network entity described herein may be executed by the network entity described herein. In some examples, the network entity may execute an instruction set to control the functional elements of the network entity to perform the described functions. Additionally or alternatively, the network entity may use dedicated hardware to perform various aspects of the described functions.
[0220] At 1605, the method may include receiving 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 1605 may be performed according to examples as disclosed herein. In some examples, aspects of the operations of 1605 may be performed as described in reference to Fig.11 The described predictive capabilities instruct component 1125 to perform.
[0221] At 1610, the method may include sending radio resource control signaling indicating a time slot offset between a first time slot for channel state information reporting and a predicted reference resource during a future time slot, wherein the predicted channel state information measurement is based at least in part on the predicted reference resource. The operations of 1610 may be performed according to examples as disclosed herein. In some examples, aspects of the operations of 1610 may be performed by Fig.11 The described offset indication component 1140 is performed.
[0222] At 1615, the method may include sending a second control message based at least in part on the capability of the UE, the second control message indicating a set of parameters for a channel state information report for the beam prediction associated with the channel measurement resource or the interference measurement resource or both. The operations of 1615 may be performed according to examples as disclosed herein. In some examples, aspects of the operations of 1615 may be performed as described in reference to Fig.11 The described CSI request component 1130 is performed.
[0223] At 1620, the method may include receiving the channel state information report based at least in part on the set of parameters, the channel state information report indicating predicted channel state information measurements for the beam set during a future time slot. The operations of 1620 may be performed according to examples as disclosed herein. In some examples, aspects of the operations of 1620 may be performed as described in reference to Fig.11 The described CSI report receiving component 1135 is performed.
[0224] The following provides an overview of various aspects of the disclosure:
[0225] Aspect 1: A method for performing wireless communications at a UE, the method comprising: sending a first control message indicating the UE's ability to support beam prediction associated with channel measurement resources or interference measurement resources or both; receiving a second control message based at least in part on the capability of the UE, the 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; and sending the channel state information report based at least in part on the set of parameters, the channel state information report indicating a predicted channel state information measurement for a beam set during a future time slot.
[0226] Aspect 2: According to the method described in Aspect 1, the method also includes: receiving radio resource control signaling, the radio resource control signaling indicating the time slot offset between the first time slot used for the channel state information report and the predicted reference resource during the future time slot, wherein the predicted channel state information measurement is at least partially based on the predicted reference resource.
[0227] Aspect 3: The method according to aspect 2, wherein the predicted reference resource during the future time slot is offset in time from the measured reference resource by the time slot offset.
[0228] Aspect 4: The method according to any one of aspects 1 to 3, further comprising: predicting a channel state information measurement associated with the channel measurement resource based at least in part on the fact that a time limit for channel measurement is not configured.
[0229] Aspect 5: The method according to any one of aspects 1 to 4, further comprising: predicting a channel state information measurement associated with the interference measurement resource based at least in part on the fact that a time limit for interference measurement is not configured.
[0230] Aspect 6: According to any one of Aspects 1 to 5, the method further includes: receiving a radio resource control message at least in part based on the parameter set, the radio resource control message indicating that the time limit is not configured for channel measurement or interference measurement or both.
[0231] Aspect 7: According to the method described in any one of Aspects 1 to 6, the method also includes: receiving a radio resource control message based at least in part on the capability of the UE, the radio resource control message indicating one or more parameter sets for predictive measurements associated with the channel measurement resources or the interference measurement resources or both, wherein the second control message indicates the parameter set from the one or more parameter sets.
[0232] Aspect 8: A method according to any one of Aspects 1 to 7, wherein receiving the second control message includes: receiving a radio resource control message that configures a periodic channel state information report according to the parameter set, wherein the channel state information report is the periodic channel state information report.
[0233] Aspect 9: A method according to any one of Aspects 1 to 8, wherein receiving the second control message includes: receiving a medium access control message that activates a semi-persistent channel state information report according to the parameter set, wherein the channel state information report is the semi-persistent channel state information report.
[0234] Aspect 10: A method according to any one of Aspects 1 to 9, wherein receiving the second control message includes: receiving a medium access control message that triggers a non-periodic channel state information report according to the parameter set, wherein the channel state information report is the non-periodic channel state information report.
[0235] Aspect 11: A method according to any one of Aspects 1 to 10, wherein the predicted channel state information measurement is at least partially based on a predicted channel measurement of the channel measurement resource or an interference measurement of the interference measurement resource in time during or before the future time slot.
[0236] Aspect 12: A method according to any one of Aspects 1 to 11, wherein the predicted channel state information measurement includes a predicted channel quality indicator, a predicted rank indicator, a predicted pre-decoder matrix indication, or any combination thereof for the beam set during the future time slot.
[0237] Aspect 13: A method for performing wireless communications at a network entity, the method 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; sending a second control message based at least in part on the capability of the UE, the 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; and receiving the channel state information report based at least in part on the set of parameters, the channel state information report indicating a predicted channel state information measurement for a beam set during a future time slot.
[0238] Aspect 14: According to the method described in Aspect 13, the method also includes: sending radio resource control signaling, the radio resource control signaling indicating the time slot offset between the first time slot used for the channel state information report and the predicted reference resource during the future time slot, wherein the predicted channel state information measurement is at least partially based on the predicted reference resource.
[0239] Aspect 15: The method according to aspect 14, wherein the predicted reference resource during the future time slot is offset in time from the measured reference resource by the time slot offset.
[0240] Aspect 16: According to any one of Aspects 13 to 15, the method further includes: sending a radio resource control message based at least in part on the parameter set, the radio resource control message indicating that the time limit is not configured for channel measurement or interference measurement or both.
[0241] Aspect 17: According to the method described in any one of Aspects 13 to 16, the method also includes: sending a radio resource control message based at least in part on the capability of the UE, the radio resource control message indicating one or more parameter sets for predictive measurements associated with the channel measurement resources or the interference measurement resources or both, wherein the second control message indicates the parameter set from the one or more parameter sets.
[0242] Aspect 18: A method according to any one of Aspects 13 to 17, wherein sending the second control message comprises: sending a radio resource control message that configures a periodic channel state information report according to the parameter set, wherein the channel state information report is the periodic channel state information report.
[0243] Aspect 19: A method according to any one of Aspects 13 to 18, wherein sending the second control message includes: sending a medium access control message that activates a semi-persistent channel state information report according to the parameter set, wherein the channel state information report is the semi-persistent channel state information report.
[0244] Aspect 20: A method according to any one of Aspects 13 to 19, wherein sending the second control message includes: sending a medium access control message that triggers a non-periodic channel state information report according to the parameter set, wherein the channel state information report is the non-periodic channel state information report.
[0245] Aspect 21: A method according to any one of Aspects 13 to 20, wherein the predicted channel state information measurement is at least partially based on a predicted channel measurement of the channel measurement resource or an interference measurement of the interference measurement resource in time during or before the future time slot.
[0246] Aspect 22: A method according to any one of Aspects 13 to 21, wherein the predicted channel state information measurement includes a predicted channel quality indicator, a predicted rank indicator, a predicted pre-decoder matrix indication, or any combination thereof for the beam set during the future time slot.
[0247] Aspect 23: An apparatus for performing wireless communications at a UE, the apparatus comprising: a processor; and a memory coupled to the processor, wherein instructions are stored in the memory, the instructions being executable by the processor to cause the apparatus to perform a method according to any one of Aspects 1 to 12.
[0248] Aspect 24: An apparatus for wireless communication at a UE, the apparatus comprising: at least one component for performing the method according to any one of aspects 1 to 12.
[0249] Aspect 25: A non-transitory computer-readable medium storing a code for wireless communication at a UE, the code comprising instructions executable by a processor to perform the method according to any one of aspects 1 to 12.
[0250] Aspect 26: An apparatus for performing wireless communications at a network entity, the apparatus comprising: a processor; and a memory coupled to the processor, wherein instructions are stored in the memory, the instructions being executable by the processor to cause the apparatus to perform a method according to any one of Aspects 13 to 22.
[0251] Aspect 27: An apparatus for wireless communication at a network entity, the apparatus comprising at least one component for performing a method according to any one of aspects 13 to 22.
[0252] Aspect 28: A non-transitory computer-readable medium storing code for wireless communication at a network entity, the code comprising instructions executable by a processor to perform the method according to any one of aspects 13 to 22.
[0253] It should be noted that the methods described herein describe possible implementations, and that the various operations and steps may be rearranged or otherwise modified and that other implementations are possible. Furthermore, aspects from two or more methods may be combined.
[0254] Although aspects of LTE, LTE-A, LTE-A Pro, or NR systems may be described for example purposes, and LTE, LTE-A, LTE-A Pro, or NR terminology may be used in much of the description, the techniques described herein may also be applicable to networks other than LTE, LTE-A, LTE-A Pro, or NR networks. For example, the techniques described may be applicable to various other wireless communication systems, such as Ultra Mobile Broadband (UMB), Institute of Electrical and Electronics Engineers (IEEE) 802.11 (Wi-Fi), IEEE 802.16 (WiMAX), IEEE 802.20, Flash-OFDM, and other systems and radio technologies not explicitly mentioned herein.
[0255] The information and signals described herein may be represented using any of a variety of different techniques and methods. For example, data, instructions, commands, information, signals, bits, symbols, and chips mentioned throughout the specification may be represented by voltage, current, electromagnetic waves, magnetic fields or magnetic particles, optical fields or optical particles, or any combination thereof.
[0256] The various illustrative blocks and components described in conjunction with the disclosure herein may be implemented or performed using a general purpose processor, DSP, ASIC, CPU, FPGA or other programmable logic device, discrete gate or transistor logic, discrete hardware components, or any combination thereof designed to perform the functions described herein. A general purpose processor may be a microprocessor, but in an alternative, the processor may be any processor, controller, microcontroller, or state machine. The processor may also be implemented as a combination of computing devices (e.g., a combination of a DSP and a microprocessor, multiple microprocessors, one or more microprocessors in conjunction with a DSP core, or any other such configuration).
[0257] The functions described herein may be implemented using hardware, software executed by a processor, firmware, or any combination thereof. When implemented using software executed by a processor, the functions may be stored as one or more instructions or codes of a computer-readable medium or sent using one or more instructions or codes of a computer-readable medium. Other examples and specific implementations are within the scope of the present disclosure and the appended claims. For example, due to the nature of software, the functions described herein may be implemented using software executed by a processor, hardware, firmware, hard wiring, or a combination of any of these items. Features that implement the functions may also be physically located at different locations, including being distributed so that the various parts of the functions are implemented at different physical locations.
[0258] Computer-readable medium includes both non-transient computer storage medium and communication medium, and it includes any medium that promotes computer program to be transmitted from one position to another position.Non-transient storage medium can be any available medium that can be accessed by general or special-purpose computer.By way of example and not limitation, non-transient computer-readable medium can include RAM, ROM, electrically erasable programmable ROM (EEPROM), flash memory, compact disc (CD) ROM or other optical disc storage device, disk storage device or other magnetic storage device, or can be used for carrying or storing desired program code parts and any other non-transient medium that can be accessed by general or special-purpose computer or general or special-purpose processor in the form of instruction or data structure.Moreover, any connection is appropriately referred to as computer-readable medium.For example, if software is sent from website, server or other remote source using coaxial cable, fiber optic cable, twisted pair, digital subscriber line (DSL) or wireless technology such as infrared, radio and microwave, then coaxial cable, fiber optic cable, twisted pair, DSL or wireless technology such as infrared, radio and microwave are included in the definition of computer-readable medium. Disks and optical disks as used herein include CDs, laser optical disks, optical optical disks, digital versatile disks (DVDs), floppy disks, and Blu-ray disks. Disks can reproduce data magnetically, and optical disks can reproduce data optically using lasers. Combinations of the above are also included within the scope of computer-readable media.
[0259] As used herein (including in the claims), "or" used in a list of items (e.g., a list of items followed by a phrase such as "at least one of" or "one or more of") indicates an inclusive list, so 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). Moreover, as used herein, the phrase "based on" should not be interpreted as a reference to a closed set of conditions. For example, an example step described as "based on condition A" can be based on both condition A and condition B without departing from the scope of the present disclosure. In other words, as used herein, the phrase "based on" should be interpreted in the same manner as the phrase "based at least in part on."
[0260] The term "determining" encompasses a variety of actions, and thus, "determining" may include calculating, computing, processing, deriving, investigating, looking up (such as via looking up in a table, database or other data structure), ascertaining, and the like. Also, "determining" may include receiving (e.g., receiving information), accessing (e.g., accessing data stored in a memory), etc. Also, "determining" may include parsing, retrieving, selecting, choosing, establishing, and other such similar actions.
[0261] In the drawings, similar components or features may have the same reference label. In addition, various components of the same type may be distinguished by following the reference label with a dash and a second label to distinguish between the similar components. If only the first reference label is used in the specification, the description may apply to any of the similar components having the same first reference label, regardless of the second reference label or other subsequent reference labels.
[0262] The descriptions set forth herein in conjunction with the accompanying drawings describe example configurations and do not represent all examples that may be implemented or within the scope of the claims. The term "example" as used herein means "used as an example, instance, or illustration," rather than "preferred" or "having advantages over other examples." The specific implementation includes specific details to provide an understanding of the described techniques. However, these techniques may be practiced without these specific details. In some cases, known structures and devices are shown in block diagram form to avoid obscuring the concepts of the described examples.
[0263] The description herein is provided to enable one of ordinary skill in the art to implement or use the present disclosure. Various modifications to the present disclosure will be apparent to one of ordinary skill in the art, and the general principles defined herein may be applied to other variations without departing from the scope of the present disclosure. Thus, the present disclosure is not limited to the examples and designs described herein, but should be granted the widest scope consistent with the principles and novel features disclosed herein.
Claims
1. A method for wireless communication at a user equipment (UE), the method comprising: sending a first control message indicating a capability of the UE to support beam prediction associated with a channel measurement resource or an interference measurement resource or both; receiving, based at least in part on the capability of the UE, 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; as well as The channel state information report is sent based at least in part on the set of parameters, the channel state information report indicating predicted channel state information measurements for a set of beams during a future time slot.
2. The method according to claim 1, further comprising: Radio resource control signaling is received, the radio resource control signaling indicating a time slot offset between a first time slot for the channel state information report and a predicted reference resource during the future time slot, wherein the predicted channel state information measurement is based at least in part on the predicted reference resource. 3 . The method of claim 2 , wherein the predicted reference resource during the future time slot is offset in time from a measured reference resource by the time slot offset.
4. The method according to claim 1, further comprising: A channel state information measurement associated with the channel measurement resource is predicted based at least in part on that a time limit for channel measurement is not configured.
5. The method according to claim 1, further comprising: A channel state information measurement associated with the interference measurement resource is predicted based at least in part on the fact that a time limit for interference measurement is not configured.
6. The method according to claim 1, further comprising: A radio resource control message is received based at least in part on the set of parameters, the radio resource control message indicating that a time limit is not configured for channel measurements or interference measurements or both.
7. The method according to claim 1, further comprising: receiving a radio resource control message based at least in part on the capability of the UE, the radio resource control message indicating one or more sets of parameters for predictive measurements associated with the channel measurement resources or the interference measurement resources or both, 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: A radio resource control message is received that configures a periodic channel state information report according to 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: A medium access control message is received to activate a semi-persistent channel state information report according to 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: A medium access control message is received that triggers an aperiodic channel state information report according to the parameter set, 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 measurement is based at least in part on a predicted channel measurement of the channel measurement resource or an interference measurement of the interference measurement resource in time during or before the future time slot.
12. The method of claim 1, wherein the predicted channel state information measurement comprises a predicted channel quality indicator, a predicted rank indicator, a predicted pre-decoder matrix indication, or any combination thereof for the set of beams during the future time slot.
13. A method for wireless communication at a network entity, the method comprising: receiving a first control message indicating a capability of a user equipment (UE) to support beam prediction associated with a channel measurement resource or an interference measurement resource or both; sending a second control message based at least in part on the capability of the UE, the 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; as well as The channel state information report is received based at least in part on the set of parameters, the channel state information report indicating predicted channel state information measurements for a set of beams during a future time slot.
14. The method according to claim 13, further comprising: Radio resource control signaling is sent indicating a time slot offset between a first time slot for the channel state information report and a predicted reference resource during the future time slot, wherein the predicted channel state information measurement is based at least in part on the predicted reference resource.
15. The method of claim 14, wherein the predicted reference resource during the future time slot is offset in time from a measured reference resource by the time slot offset.
16. The method according to claim 13, further comprising: A radio resource control message is sent based at least in part on the set of parameters, the radio resource control message indicating that a time limit is not configured for channel measurements or interference measurements, or both.
17. The method according to claim 13, further comprising: sending a radio resource control message based at least in part on the capability of the UE, the radio resource control message indicating one or more sets of parameters for predictive measurements associated with the channel measurement resources or the interference measurement resources or both, 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 sending the second control message comprises: A radio resource control message is sent that configures a periodic channel state information report according to the set of parameters, wherein the channel state information report is the periodic channel state information report.
19. The method of claim 13, wherein sending the second control message comprises: Sending a medium access control message for activating a semi-persistent channel state information report according to the parameter set, wherein the channel state information report is the semi-persistent channel state information report.
20. The method of claim 13, wherein sending the second control message comprises: Sending a medium access control message that triggers an aperiodic channel state information report according to the parameter set, 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 measurement is based at least in part on a predicted channel measurement of the channel measurement resource or an interference measurement of the interference measurement resource in time during or before the future time slot.
22. The method of claim 13, wherein the predicted channel state information measurement comprises a predicted channel quality indicator, a predicted rank indicator, a predicted pre-decoder matrix indication, or any combination thereof for the set of beams during the future time slot.
23. An apparatus for wireless communication at a user equipment (UE), the apparatus comprising: processor; and a memory coupled to the processor, wherein instructions are stored in the memory, and the instructions are executable by the processor to cause the apparatus to: sending a first control message indicating a capability of the UE to support beam prediction associated with a channel measurement resource or an interference measurement resource or both; receiving a second control message based at least in part on the capability of the UE, The second control message indicates a parameter set for a channel state information report for the beam prediction associated with the channel measurement resource or the interference measurement resource or both; as well as The channel state information report is sent based at least in part on the set of parameters, the channel state information report indicating predicted channel state information measurements for a set of beams during a future time slot.
24. The apparatus of claim 23, wherein the instructions are further executable by the processor to cause the apparatus to: Radio resource control signaling is received, the radio resource control signaling indicating a time slot offset between a first time slot for the channel state information report and a predicted reference resource during the future time slot, wherein the predicted channel state information measurement is based at least in part on the predicted reference resource.
25. The apparatus of claim 23, wherein the instructions are further executable by the processor to cause the apparatus to: A channel state information measurement associated with the channel measurement resource is predicted based at least in part on that a time limit for channel measurement is not configured.
26. The apparatus of claim 23, wherein the instructions are further executable by the processor to cause the apparatus to: A channel state information measurement associated with the interference measurement resource is predicted based at least in part on the fact that a time limit for interference measurement is not configured.
27. The apparatus of claim 23, wherein the instructions are further executable by the processor to cause the apparatus to: A radio resource control message is received based at least in part on the set of parameters, the radio resource control message indicating that a time limit is not configured for channel measurements or interference measurements or both.
28. The apparatus of claim 23, wherein the instructions are further executable by the processor to cause the apparatus to: receiving a radio resource control message based at least in part on the capability of the UE, the radio resource control message indicating one or more sets of parameters for predictive measurements associated with the channel measurement resources or the interference measurement resources or both, wherein the second control message indicates the set of parameters from the one or more sets of parameters.
29. An apparatus for wireless communication at a network entity, the apparatus comprising: processor; and a memory coupled to the processor, wherein instructions are stored in the memory, and the instructions are executable by the processor to cause the apparatus to: receiving a first control message indicating a capability of a user equipment (UE) to support beam prediction associated with a channel measurement resource or an interference measurement resource or both; sending a second control message based at least in part on the capability of the UE, The second control message indicates a parameter set for a channel state information report for the beam prediction associated with the channel measurement resource or the interference measurement resource or both; as well as The channel state information report is received based at least in part on the set of parameters, the channel state information report indicating predicted channel state information measurements for a set of beams during a future time slot.
30. The apparatus of claim 29, wherein the instructions are further executable by the processor to cause the apparatus to: Radio resource control signaling is sent indicating a time slot offset between a first time slot for the channel state information report and a predicted reference resource during the future time slot, wherein the predicted channel state information measurement is based at least in part on the predicted reference resource.
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Systems and methods of prediction of channel state information (CSI) related information and invalidity indication
WO2026194106A1