Channel information prediction for cells
Patent Information
- Application Number
- PCT/CN2025/078712
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2025-02-24
- Publication Date
- 2026-08-27
Smart Images

Figure CN2025078712_27082026_PF_FP_ABST
Abstract
Description
CHANNEL INFORMATION PREDICTION FOR CELLSFIELD OF TECHNOLOGY
[0001] The following relates to wireless communications, including channel information determination for inactive cells.BACKGROUND
[0002] Wireless communications systems are widely deployed to provide various types of communication content such as voice, video, packet data, messaging, broadcast, and so on. These systems may be capable of supporting communication with multiple users by sharing the available system resources (e.g., time, frequency, and power) . Examples of such multiple-access systems include fourth generation (4G) systems such as Long Term Evolution (LTE) systems, LTE-Advanced (LTE-A) systems, or LTE-A Pro systems, and fifth generation (5G) systems which may be referred to as New Radio (NR) systems. These systems may employ technologies such as code division multiple access (CDMA) , time division multiple access (TDMA) , frequency division multiple access (FDMA) , orthogonal FDMA (OFDMA) , or discrete Fourier transform spread orthogonal frequency division multiplexing (DFT-S-OFDM) . A wireless multiple-access communications system may include one or more base stations, each supporting wireless communication for communication devices, which may be known as user equipment (UE) .SUMMARY
[0003] The systems, methods, and devices of this disclosure each have several innovative aspects, no single one of which is solely responsible for the desirable attributes disclosed herein.
[0004] A method by a user equipment (UE) is described. The method may include receiving, from an active cell, configuration information indicating one or more resources for measurement by the UE and transmitting, to the active cell, channel information associated with an inactive secondary cell, where the channel information is determined by the UE based on the measurement of the one or more resources and is transmitted previous to completion of an activation of the inactive secondary cell for carrier aggregation with the active cell.
[0005] A UE is described. The UE may include one or more memories storing processor executable code, a transceiver, and one or more processors coupled with the one or more memories and the transceiver. The one or more processors may be configured to receive, via the transceiver, from an active cell, configuration information indicating one or more resources for measurement by the UE and transmit, via the transceiver, to the active cell, channel information associated with an inactive secondary cell, where the one or more processors are configured to determine the channel information based on the measurement of the one or more resources and transmit the channel information previous to completion of an activation of the inactive secondary cell for carrier aggregation with the active cell.
[0006] Another UE is described. The UE may include means for receiving, from an active cell, configuration information indicating one or more resources for measurement by the UE and means for transmitting, to the active cell, channel information associated with an inactive secondary cell, where the channel information is determined by the UE based on the measurement of the one or more resources and is transmitted previous to completion of an activation of the inactive secondary cell for carrier aggregation with the active cell.
[0007] A non-transitory computer-readable medium storing code is described. The code may include instructions executable by one or more processors to receive, from an active cell, configuration information indicating one or more resources for measurement by the UE and transmit, to the active cell, channel information associated with an inactive secondary cell, where the channel information is determined by the UE based on the measurement of the one or more resources and is transmitted previous to completion of an activation of the inactive secondary cell for carrier aggregation with the active cell.
[0008] Some examples of the method, UEs, and non-transitory computer-readable medium described herein may further include operations, features, means, or instructions for transmitting, to the active cell, capability information indicating a capability of the UE to transmit the channel information associated with the inactive secondary cell previous to completion of the activation of the inactive secondary cell for carrier aggregation with the active cell.
[0009] Some examples of the method, UEs, and non-transitory computer-readable medium described herein may further include operations, features, means, or instructions for receiving, from the active cell, an activation command to activate the inactive secondary cell for carrier aggregation with the active cell, where the configuration information may be received and the channel information may be transmitted previous to reception of the activation command.
[0010] Some examples of the method, UEs, and non-transitory computer-readable medium described herein may further include operations, features, means, or instructions for receiving, from the active cell, an activation command to activate the inactive secondary cell for carrier aggregation with the active cell, where the configuration information may be received or the channel information may be transmitted subsequent to reception of the activation command and during an activation delay that precedes the completion of the activation of the inactive secondary cell.
[0011] In some examples of the method, UEs, and non-transitory computer-readable medium described herein, the activation command may be received separate from the configuration information and the configuration information may be received with the activation command.
[0012] In some examples of the method, UEs, and non-transitory computer-readable medium described herein, the configuration information indicates the one or more resources corresponding to the inactive secondary cell or multiple inactive secondary cells, or indicates the one or more resources corresponding to one or more active cells and the channel information may be determined based on the one or more resources.
[0013] In some examples of the method, UEs, and non-transitory computer-readable medium described herein, the channel information may be transmitted after a reference signal may be synchronized, the reference signal associated with the one or more resource s.
[0014] Some examples of the method, UEs, and non-transitory computer-readable medium described herein may further include operations, features, means, or instructions for storing an indication of one or more quasi-colocation (QCL) properties for a reference signal associated with the one or more resources.
[0015] In some examples of the method, UEs, and non-transitory computer-readable medium described herein, the configuration information indicates a report configuration identifier and a measurement resource identifier and the report configuration identifier may be from a set of report configuration identifiers associated with the active cell or the inactive secondary cell and the measurement resource identifier may be associated with the report configuration identifier and may be from a set of measurement resource identifiers associated with the active cell or the inactive secondary cell.
[0016] Some examples of the method, UEs, and non-transitory computer-readable medium described herein may further include operations, features, means, or instructions for receiving a radio resource control (RRC) reconfiguration message, where the channel information transmitted previous to completion of the activation of the inactive secondary cell may be triggered based on the RRC reconfiguration message.
[0017] Some examples of the method, UEs, and non-transitory computer-readable medium described herein may further include operations, features, means, or instructions for receiving a medium access control-control element (MAC-CE) or downlink control information (DCI) , where the channel information transmitted previous to completion of the activation of the inactive secondary cell may be transmitted periodically, semi-persistently, or aperiodically based on the MAC-CE or the DCI.
[0018] A method by a network entity is described. The method may include outputting, via an active cell to a UE, configuration information indicating one or more resources for measurement by the UE and obtaining, from the UE via the active cell, channel information associated with an inactive secondary cell, where the channel information is based on the measurement of the one or more resources and is obtained previous to completion of an activation of the inactive secondary cell for carrier aggregation with the active cell.
[0019] A network entity is described. The network entity may include one or more memories storing processor executable code, and one or more processors coupled with the one or more memories. The one or more processors may individually or collectively be operable to execute the code to cause the network entity to output, via an active cell to a UE, configuration information indicating one or more resources for measurement by the UE and obtain, from the UE via the active cell, channel information associated with an inactive secondary cell, where the channel information is based on the measurement of the one or more resources and is obtained previous to completion of an activation of the inactive secondary cell for carrier aggregation with the active cell.
[0020] Another network entity is described. The network entity may include means for outputting, via an active cell to a UE, configuration information indicating one or more resources for measurement by the UE and means for obtaining, from the UE via the active cell, channel information associated with an inactive secondary cell, where the channel information is based on the measurement of the one or more resources and is obtained previous to completion of an activation of the inactive secondary cell for carrier aggregation with the active cell.
[0021] A non-transitory computer-readable medium storing code is described. The code may include instructions executable by one or more processors to output, via an active cell to a UE, configuration information indicating one or more resources for measurement by the UE and obtain, from the UE via the active cell, channel information associated with an inactive secondary cell, where the channel information is based on the measurement of the one or more resources and is obtained previous to completion of an activation of the inactive secondary cell for carrier aggregation with the active cell.
[0022] Some examples of the method, network entities, and non-transitory computer-readable medium described herein may further include operations, features, means, or instructions for obtaining, from the UE via the active cell, capability information indicating a capability of the UE to transmit the channel information associated with the inactive secondary cell previous to completion of the activation of the inactive secondary cell for carrier aggregation with the active cell.
[0023] Some examples of the method, network entities, and non-transitory computer-readable medium described herein may further include operations, features, means, or instructions for outputting, to the UE via the active cell, an activation command to activate the inactive secondary cell for carrier aggregation with the active cell, where the configuration information may be output and the channel information may be obtained previous to reception of the activation command.
[0024] Some examples of the method, network entities, and non-transitory computer-readable medium described herein may further include operations, features, means, or instructions for outputting, to the UE via the active cell, an activation command to activate the inactive secondary cell for carrier aggregation with the active cell, where the configuration information may be output or the channel information may be obtained subsequent to reception of the activation command and during an activation delay that precedes the completion of the activation of the inactive secondary cell.
[0025] In some examples of the method, network entities, and non-transitory computer-readable medium described herein, the activation command may be output separate from the configuration information and the configuration information may be output with the activation command.
[0026] In some examples of the method, network entities, and non-transitory computer-readable medium described herein, the configuration information indicates the one or more resources corresponding to the inactive secondary cell or multiple inactive secondary cells, or indicates the one or more resources corresponding to one or more active cells.
[0027] In some examples of the method, network entities, and non-transitory computer-readable medium described herein, the channel information may be obtained after a reference signal may be synchronized, the reference signal associated with the one or more resources.
[0028] In some examples of the method, network entities, and non-transitory computer-readable medium described herein, the configuration information indicates a report configuration identifier and a measurement resource identifier, where the report configuration identifier may be from a set of report configuration identifiers associated with the active cell or the inactive secondary cell and the measurement resource identifier may be associated with the report configuration identifier and may be from a set of measurement resource identifiers associated with the active cell or the inactive secondary cell.
[0029] Some examples of the method, network entities, and non-transitory computer-readable medium described herein may further include operations, features, means, or instructions for outputting an RRC reconfiguration message, where the channel information obtained previous to completion of the activation of the inactive secondary cell may be triggered based on the RRC reconfiguration message.
[0030] Some examples of the method, network entities, and non-transitory computer-readable medium described herein may further include operations, features, means, or instructions for outputting a MAC-CE or DCI, where the channel information transmitted previous to completion of the activation of the inactive secondary cell may be obtained periodically, semi-persistently, or aperiodically based on the MAC-CE or the DCI.
[0031] Details of one or more implementations of the subject matter described in this disclosure are set forth in the accompanying drawings and the description below. Other features, aspects, and advantages will become apparent from the description, the drawings, and the claims. Note that the relative dimensions of the following figures may not be drawn to scale.BRIEF DESCRIPTION OF THE DRAWINGS
[0032] FIG. 1 shows an example of a wireless communications system that supports channel information determination for inactive cells in accordance with one or more aspects of the present disclosure.
[0033] FIG. 2 shows an example of a network architecture that supports channel information determination for inactive cells in accordance with one or more aspects of the present disclosure.
[0034] FIG. 3 shows an example of a wireless communications system that supports channel information determination for inactive cells in accordance with one or more aspects of the present disclosure.
[0035] FIG. 4 shows an example of a timing diagram that supports channel information determination for inactive cells in accordance with one or more aspects of the present disclosure.
[0036] FIG. 5 shows an example of a process flow that supports channel information determination for inactive cells in accordance with one or more aspects of the present disclosure.
[0037] FIGs. 6 and 7 show block diagrams of devices that support channel information determination for inactive cells in accordance with one or more aspects of the present disclosure.
[0038] FIG. 8 shows a block diagram of a communications manager that supports channel information determination for inactive cells in accordance with one or more aspects of the present disclosure.
[0039] FIG. 9 shows a diagram of a system including a device that supports channel information determination for inactive cells in accordance with one or more aspects of the present disclosure.
[0040] FIGs. 10 and 11 show block diagrams of devices that support channel information determination for inactive cells in accordance with one or more aspects of the present disclosure.
[0041] FIG. 12 shows a block diagram of a communications manager that supports channel information determination for inactive cells in accordance with one or more aspects of the present disclosure.
[0042] FIG. 13 shows a diagram of a system including a device that supports channel information determination for inactive cells in accordance with one or more aspects of the present disclosure.
[0043] FIGs. 14 through 17 show flowcharts illustrating methods that support channel information determination for inactive cells in accordance with one or more aspects of the present disclosure.DETAILED DESCRIPTION
[0044] Some wireless communications systems may communicate via one or more cells (e.g., a primary cell (PCell) and a secondary cell (SCell) ) . One source of latency for SCell activation may be channel state information (CSI) acquisition for the SCell. The latency may be due to a relatively large SCell activation delay (e.g., a delay at the user equipment (UE) side to be prepared for CSI measurement and reporting associated with the SCell) , as well as additional delay at the network side, where a channel state feedback (CSF) report may be triggered later than the time that an SCell activation medium access control-control element (MAC-CE) is transmitted (e.g., later than the SCell activation delay) .
[0045] Some examples of the techniques described herein may partially or completely move the SCell CSF report out of the timeline of cell activation. For instance, early CSF determination or reporting for an SCell may be performed (e.g., either before or during the SCell activation process) . In some approaches, CSF determination may be based on channel state information reference signal (CSI-RS) measurements on the SCell for SCell activation. Some restrictions or relaxations on CSI reporting or resource configuration may be utilized (e.g., a relatively smaller quantity of CSI-RS ports, or a relatively smaller rank indicator (RI) ) to enable faster CSI reporting before the SCell is actually activated. Additionally, or alternatively, some approaches may be based on predicted CSF (e.g., inter-frequency based on measurements on a PCell or another SCell) .
[0046] Aspects of the disclosure are initially described in the context of wireless communications systems. Aspects of the disclosure are also described in the context of a timing diagram and process flow. Aspects of the disclosure are further illustrated by and described with reference to apparatus diagrams, system diagrams, and flowcharts that relate to channel information determination for inactive cells.
[0047] FIG. 1 shows an example of a wireless communications system 100 that supports channel information determination for inactive cells in accordance with one or more aspects of the present disclosure. The wireless communications system 100 may include one or more devices, such as one or more network devices (e.g., network entities 105) , one or more UEs 115, and a core network 130. In some examples, the wireless communications system 100 may be a Long Term Evolution (LTE) network, an LTE-Advanced (LTE-A) network, an LTE-A Pro network, a New Radio (NR) network, or a network operating in accordance with other systems and radio technologies, including future systems and radio technologies not explicitly mentioned herein.
[0048] The network entities 105 may be dispersed throughout a geographic area to form the wireless communications system 100 and may include devices in different forms or having different capabilities. In various examples, a network entity 105 may be referred to as a network element, a mobility element, a radio access network (RAN) node, or network equipment, among other nomenclature. In some examples, network entities 105 and UEs 115 may wirelessly communicate via communication link (s) 125 (e.g., a radio frequency (RF) access link) . For example, a network entity 105 may support a coverage area 110 (e.g., a geographic coverage area) over which the UEs 115 and the network entity 105 may establish the communication link (s) 125. The coverage area 110 may be an example of a geographic area over which a network entity 105 and a UE 115 may support the communication of signals according to one or more radio access technologies (RATs) .
[0049] The UEs 115 may be dispersed throughout a coverage area 110 of the wireless communications system 100, and each UE 115 may be stationary, or mobile, or both at different times. The UEs 115 may be devices in different forms or having different capabilities. Some example UEs 115 are illustrated in FIG. 1. The UEs 115 described herein may be capable of supporting communications with various types of devices in the wireless communications system 100 (e.g., other wireless communication devices, including UEs 115 or network entities 105) , as shown in FIG. 1.
[0050] As described herein, a node of the wireless communications system 100, which may be referred to as a network node, or a wireless node, may be a network entity 105 (e.g., any network entity described herein) , a UE 115 (e.g., any UE described herein) , a network controller, an apparatus, a device, a computing system, one or more components, or another suitable processing entity configured to perform any of the techniques described herein. For example, a node may be a UE 115. As another example, a node may be a network entity 105. As another example, a first node may be configured to communicate with a second node or a third node. In one aspect of this example, the first node may be a UE 115, the second node may be a network entity 105, and the third node may be a UE 115. In another aspect of this example, the first node may be a UE 115, the second node may be a network entity 105, and the third node may be a network entity 105. In yet other aspects of this example, the first, second, and third nodes may be different relative to these examples. Similarly, reference to a UE 115, network entity 105, apparatus, device, computing system, or the like may include disclosure of the UE 115, network entity 105, apparatus, device, computing system, or the like being a node. For example, disclosure that a UE 115 is configured to receive information from a network entity 105 also discloses that a first node is configured to receive information from a second node.
[0051] In some examples, network entities 105 may communicate with a core network 130, or with one another, or both. For example, network entities 105 may communicate with the core network 130 via backhaul communication link (s) 120 (e.g., in accordance with an S1, N2, N3, or other interface protocol) . In some examples, network entities 105 may communicate with one another via backhaul communication link (s) 120 (e.g., in accordance with an X2, Xn, or other interface protocol) either directly (e.g., directly between network entities 105) or indirectly (e.g., via the core network 130) . In some examples, network entities 105 may communicate with one another via a midhaul communication link 162 (e.g., in accordance with a midhaul interface protocol) or a fronthaul communication link 168 (e.g., in accordance with a fronthaul interface protocol) , or any combination thereof. The backhaul communication link (s) 120, midhaul communication links 162, or fronthaul communication links 168 may be or include one or more wired links (e.g., an electrical link, an optical fiber link) or one or more wireless links (e.g., a radio link, a wireless optical link) , among other examples or various combinations thereof. A UE 115 may communicate with the core network 130 via a communication link 155.
[0052] One or more of the network entities 105 or network equipment described herein may include or may be referred to as a base station 140 (e.g., a base transceiver station, a radio base station, an NR base station, an access point, a radio transceiver, a NodeB, an eNodeB (eNB) , a next-generation NodeB or giga-NodeB (either of which may be referred to as a gNB) , a 5G NB, a next-generation eNB (ng-eNB) , a Home NodeB, a Home eNodeB, or other suitable terminology) . In some examples, a network entity 105 (e.g., a base station 140) may be implemented in an aggregated (e.g., monolithic, standalone) base station architecture, which may be configured to utilize a protocol stack that is physically or logically integrated within one network entity (e.g., a network entity 105 or a single RAN node, such as a base station 140) .
[0053] In some examples, a network entity 105 may be implemented in a disaggregated architecture (e.g., a disaggregated base station architecture, a disaggregated RAN architecture) , which may be configured to utilize a protocol stack that is physically or logically distributed among multiple network entities (e.g., network entities 105) , such as an integrated access and backhaul (IAB) network, an open RAN (O-RAN) (e.g., a network configuration sponsored by the O-RAN Alliance) , or a virtualized RAN (vRAN) (e.g., a cloud RAN (C-RAN) ) . For example, a network entity 105 may include one or more of a central unit (CU) , such as a CU 160, a distributed unit (DU) , such as a DU 165, a radio unit (RU) , such as an RU 170, a RAN Intelligent Controller (RIC) , such as an 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) system, such as an SMO system 180, or any combination thereof. An RU 170 may also be referred to as a radio head, a smart radio head, a remote radio head (RRH) , a remote radio unit (RRU) , or a transmission reception point (TRP) . One or more components of the network entities 105 in a disaggregated RAN architecture may be co-located, or one or more components of the network entities 105 may be located in distributed locations (e.g., separate physical locations) . In some examples, one or more of the network entities 105 of a disaggregated RAN architecture may be implemented as virtual units (e.g., a virtual CU (VCU) , a virtual DU (VDU) , a virtual RU (VRU) ) .
[0054] The split of functionality between a CU 160, a DU 165, and an RU 170 is flexible and may support different functionalities depending on which functions (e.g., network layer functions, protocol layer functions, baseband functions, RF functions, or any combinations thereof) are performed at a CU 160, a DU 165, or an RU 170. For example, a functional split of a protocol stack may be employed between a CU 160 and a DU 165 such that the CU 160 may support one or more layers of the protocol stack and the DU 165 may support one or more different layers of the protocol stack. In some examples, the CU 160 may host upper protocol layer (e.g., layer 3 (L3) , layer 2 (L2) ) functionality and signaling (e.g., radio resource control (RRC) , service data adaptation protocol (SDAP) , packet data convergence protocol (PDCP) ) . The CU 160 (e.g., one or more CUs) may be connected to a DU 165 (e.g., one or more DUs) or an RU 170 (e.g., one or more RUs) , or some combination thereof, and the DUs 165, RUs 170, or both may host lower protocol layers, such as layer 1 (L1) (e.g., physical (PHY) layer) or L2 (e.g., radio link control (RLC) layer, medium access control (MAC) layer) functionality and signaling, and may each be at least partially controlled by the CU 160. Additionally, or alternatively, a functional split of the protocol stack may be employed between a DU 165 and an RU 170 such that the DU 165 may support one or more layers of the protocol stack and the RU 170 may support one or more different layers of the protocol stack. The DU 165 may support one or multiple different cells (e.g., via one or multiple different RUs, such as an RU 170) . In some cases, a functional split between a CU 160 and a DU 165 or between a DU 165 and an RU 170 may be within a protocol layer (e.g., some functions for a protocol layer may be performed by one of a CU 160, a DU 165, or an RU 170, while other functions of the protocol layer are performed by a different one of the CU 160, the DU 165, or the RU 170) . A CU 160 may be functionally split further into CU control plane (CU-CP) and CU user plane (CU-UP) functions. A CU 160 may be connected to a DU 165 via a midhaul communication link 162 (e.g., F1, F1-c, F1-u) , and a DU 165 may be connected to an RU 170 via a fronthaul communication link 168 (e.g., open fronthaul (FH) interface) . In some examples, a midhaul communication link 162 or a fronthaul communication link 168 may be implemented in accordance with an interface (e.g., a channel) between layers of a protocol stack supported by respective network entities (e.g., one or more of the network entities 105) that are in communication via such communication links.
[0055] In some wireless communications systems (e.g., the wireless communications system 100) , infrastructure and spectral resources for radio access may support wireless backhaul link capabilities to supplement wired backhaul connections, providing an IAB network architecture (e.g., to a core network 130) . In some cases, in an IAB network, one or more of the network entities 105 (e.g., network entities 105 or IAB node (s) 104) may be partially controlled by each other. The IAB node (s) 104 may be referred to as a donor entity or an IAB donor. A DU 165 or an RU 170 may be partially controlled by a CU 160 associated with a network entity 105 or base station 140 (such as a donor network entity or a donor base station) . The one or more donor entities (e.g., IAB donors) may be in communication with one or more additional devices (e.g., IAB node (s) 104) via supported access and backhaul links (e.g., backhaul communication link (s) 120) . IAB node (s) 104 may include an IAB mobile termination (IAB-MT) controlled (e.g., scheduled) by one or more DUs (e.g., DUs 165) of a coupled IAB donor. An IAB-MT may be equipped with an independent set of antennas for relay of communications with UEs 115 or may share the same antennas (e.g., of an RU 170) of IAB node (s) 104 used for access via the DU 165 of the IAB node (s) 104 (e.g., referred to as virtual IAB-MT (vIAB-MT) ) . In some examples, the IAB node (s) 104 may include one or more DUs (e.g., DUs 165) that support communication links with additional entities (e.g., IAB node (s) 104, UEs 115) within the relay chain or configuration of the access network (e.g., downstream) . In such cases, one or more components of the disaggregated RAN architecture (e.g., the IAB node (s) 104 or components of the IAB node (s) 104) may be configured to operate according to the techniques described herein.
[0056] For instance, an access network (AN) or RAN may include communications between access nodes (e.g., an IAB donor) , IAB node (s) 104, and one or more UEs 115. The IAB donor may facilitate connection between the core network 130 and the AN (e.g., via a wired or wireless connection to the core network 130) . That is, an IAB donor may refer to a RAN node with a wired or wireless connection to the core network 130. The IAB donor may include one or more of a CU 160, a DU 165, and an RU 170, in which case the CU 160 may communicate with the core network 130 via an interface (e.g., a backhaul link) . The IAB donor and IAB node (s) 104 may communicate via an F1 interface according to a protocol that defines signaling messages (e.g., an F1 AP protocol) . Additionally, or alternatively, the CU 160 may communicate with the core network 130 via an interface, which may be an example of a portion of a backhaul link, and may communicate with other CUs (e.g., including a CU 160 associated with an alternative IAB donor) via an Xn-C interface, which may be an example of another portion of a backhaul link.
[0057] IAB node (s) 104 may refer to RAN nodes that provide IAB functionality (e.g., access for UEs 115, wireless self-backhauling capabilities) . A DU 165 may act as a distributed scheduling node towards child nodes associated with the IAB node (s) 104, and the IAB-MT may act as a scheduled node towards parent nodes associated with IAB node (s) 104. That is, an IAB donor may be referred to as a parent node in communication with one or more child nodes (e.g., an IAB donor may relay transmissions for UEs through other IAB node (s) 104) . Additionally, or alternatively, IAB node (s) 104 may also be referred to as parent nodes or child nodes to other IAB node (s) 104, depending on the relay chain or configuration of the AN. The IAB-MT entity of IAB node (s) 104 may provide a Uu interface for a child IAB node (e.g., the IAB node (s) 104) to receive signaling from a parent IAB node (e.g., the IAB node (s) 104) , and a DU interface (e.g., a DU 165) may provide a Uu interface for a parent IAB node to signal to a child IAB node or UE 115.
[0058] For example, IAB node (s) 104 may be referred to as parent nodes that support communications for child IAB nodes, or may be referred to as child IAB nodes associated with IAB donors, or both. An IAB donor may include a CU 160 with a wired or wireless connection (e.g., backhaul communication link (s) 120) to the core network 130 and may act as a parent node to IAB node (s) 104. For example, the DU 165 of an IAB donor may relay transmissions to UEs 115 through IAB node (s) 104, or may directly signal transmissions to a UE 115, or both. The CU 160 of the IAB donor may signal communication link establishment via an F1 interface to IAB node (s) 104, and the IAB node (s) 104 may schedule transmissions (e.g., transmissions to the UEs 115 relayed from the IAB donor) through one or more DUs (e.g., DUs 165) . That is, data may be relayed to and from IAB node (s) 104 via signaling via an NR Uu interface to MT of IAB node (s) 104 (e.g., other IAB node (s) ) . Communications with IAB node (s) 104 may be scheduled by a DU 165 of the IAB donor or of IAB node (s) 104.
[0059] In the case of the techniques described herein applied in the context of a disaggregated RAN architecture, one or more components of the disaggregated RAN architecture may be configured to support channel information determination for inactive cells as described herein. For example, some operations described as being performed by a UE 115 or a network entity 105 (e.g., a base station 140) may additionally, or alternatively, be performed by one or more components of the disaggregated RAN architecture (e.g., components such as an IAB node, a DU 165, a CU 160, an RU 170, an RIC 175, an SMO system 180) .
[0060] A UE 115 may include or may be referred to as a mobile device, a wireless device, a remote device, a handheld device, or a subscriber device, or some other suitable terminology, where the “device” may also be referred to as a unit, a station, a terminal, or a client, among other examples. A UE 115 may also include or may be referred to as a personal electronic device such as a cellular phone, a personal digital assistant (PDA) , a tablet computer, a laptop computer, or a personal computer. In some examples, a UE 115 may include or be referred to as a wireless local loop (WLL) station, an Internet of Things (IoT) device, an Internet of Everything (IoE) device, or a machine type communications (MTC) device, among other examples, which may be implemented in various objects such as appliances, vehicles, or meters, among other examples.
[0061] The UEs 115 described herein may be able to communicate with various types of devices, such as UEs 115 that may sometimes operate as relays, as well as the network entities 105 and the network equipment including macro eNBs or gNBs, small cell eNBs or gNBs, or relay base stations, among other examples, as shown in FIG. 1.
[0062] The UEs 115 and the network entities 105 may wirelessly communicate with one another via the communication link (s) 125 (e.g., one or more access links) using resources associated with one or more carriers. The term “carrier” may refer to a set of RF spectrum resources having a defined PHY layer structure for supporting the communication link (s) 125. For example, a carrier used for the communication link (s) 125 may include a portion of an RF spectrum band (e.g., a bandwidth part (BWP) ) that is operated according to one or more PHY layer channels for a given RAT (e.g., LTE, LTE-A, LTE-A Pro, NR) . Each PHY layer channel may carry acquisition signaling (e.g., synchronization signals, system information) , control signaling that coordinates operation for the carrier, user data, or other signaling. The wireless communications system 100 may support communication with a UE 115 using carrier aggregation or multi-carrier operation. A UE 115 may be configured with multiple downlink component carriers and one or more uplink component carriers according to a carrier aggregation configuration. Carrier aggregation may be used with both frequency division duplexing (FDD) and time division duplexing (TDD) component carriers. Communication between a network entity 105 and other devices may refer to communication between the devices and any portion (e.g., entity, sub-entity) of a network entity 105. For example, the terms “transmitting, ” “receiving, ” or “communicating, ” when referring to a network entity 105, may refer to any portion of a network entity 105 (e.g., a base station 140, a CU 160, a DU 165, a RU 170) of a RAN communicating with another device (e.g., directly or via one or more other network entities, such as one or more of the network entities 105) .
[0063] In some examples, such as in a carrier aggregation configuration, a carrier may have acquisition signaling or control signaling that coordinates operations for other carriers. A carrier may be associated with a frequency channel (e.g., an evolved universal mobile telecommunication system terrestrial radio access (E-UTRA) absolute RF channel number (EARFCN) ) and may be identified according to a channel raster for discovery by the UEs 115. A carrier may be operated in a standalone mode, in which case initial acquisition and connection may be conducted by the UEs 115 via the carrier, or the carrier may be operated in a non-standalone mode, in which case a connection is anchored using a different carrier (e.g., of the same or a different RAT) .
[0064] The communication link (s) 125 of the wireless communications system 100 may include downlink transmissions (e.g., forward link transmissions) from a network entity 105 to a UE 115, uplink transmissions (e.g., return link transmissions) from a UE 115 to a network entity 105, or both, among other configurations of transmissions. Carriers may carry downlink or uplink communications (e.g., in an FDD mode) or may be configured to carry downlink and uplink communications (e.g., in a TDD mode) .
[0065] A carrier may be associated with a particular bandwidth of the RF spectrum and, in some examples, the carrier bandwidth may be referred to as a “system bandwidth” of the carrier or the wireless communications system 100. For example, the carrier bandwidth may be one of a set of bandwidths for carriers of a particular RAT (e.g., 1.4, 3, 5, 10, 15, 20, 40, or 80 megahertz (MHz) ) . Devices of the wireless communications system 100 (e.g., the network entities 105, the UEs 115, or both) may have hardware configurations that support communications using a particular carrier bandwidth or may be configurable to support communications using one of a set of carrier bandwidths. In some examples, the wireless communications system 100 may include network entities 105 or UEs 115 that support concurrent communications using carriers associated with multiple carrier bandwidths. In some examples, each served UE 115 may be configured for operating using portions (e.g., a sub-band, a BWP) or all of a carrier bandwidth.
[0066] Signal waveforms transmitted via a carrier may be made up of multiple subcarriers (e.g., using multi-carrier modulation (MCM) techniques such as orthogonal frequency division multiplexing (OFDM) or discrete Fourier transform spread OFDM (DFT-S-OFDM) ) . In a system employing MCM techniques, a resource element may refer to resources of one symbol period (e.g., a duration of one modulation symbol) and one subcarrier, in which case the symbol period and subcarrier spacing may be inversely related. The quantity of bits carried by each resource element may depend on the modulation scheme (e.g., the order of the modulation scheme, the coding rate of the modulation scheme, or both) , such that a relatively higher quantity of resource elements (e.g., in a transmission duration) and a relatively higher order of a modulation scheme may correspond to a relatively higher rate of communication. A wireless communications resource may refer to a combination of an RF spectrum resource, a time resource, and a spatial resource (e.g., a spatial layer, a beam) , and the use of multiple spatial resources may increase the data rate or data integrity for communications with a UE 115.
[0067] One or more numerologies for a carrier may be supported, and a numerology may include a subcarrier spacing (Δf) and a cyclic prefix. A carrier may be divided into one or more BWPs having the same or different numerologies. In some examples, a UE 115 may be configured with multiple BWPs. In some examples, a single BWP for a carrier may be active at a given time and communications for the UE 115 may be restricted to one or more active BWPs.
[0068] The time intervals for the network entities 105 or the UEs 115 may be expressed in multiples of a basic time unit which may, for example, refer to a sampling period of Ts=1 / (Δfmax·Nf) seconds, for which Δfmax may represent a supported subcarrier spacing, and Nf may represent a supported discrete Fourier transform (DFT) size. Time intervals of a communications resource may be organized according to radio frames each having a specified duration (e.g., 10 milliseconds (ms) ) . Each radio frame may be identified by a system frame number (SFN) (e.g., ranging from 0 to 1023) .
[0069] Each frame may include multiple consecutively-numbered subframes or slots, and each subframe or slot may have the same duration. In some examples, a frame may be divided (e.g., in the time domain) into subframes, and each subframe may be further divided into a quantity of slots. Alternatively, each frame may include a variable quantity of slots, and the quantity of slots may depend on subcarrier spacing. Each slot may include a quantity of symbol periods (e.g., depending on the length of the cyclic prefix prepended to each symbol period) . In some wireless communications systems, such as the wireless communications system 100, a slot may further be divided into multiple mini-slots associated with one or more symbols. Excluding the cyclic prefix, each symbol period may be associated with one or more (e.g., Nf) sampling periods. The duration of a symbol period may depend on the subcarrier spacing or frequency band of operation.
[0070] A subframe, a slot, a mini-slot, or a symbol may be the smallest scheduling unit (e.g., in the time domain) of the wireless communications system 100 and may be referred to as a transmission time interval (TTI) . In some examples, the TTI duration (e.g., a quantity of symbol periods in a TTI) may be variable. Additionally, or alternatively, the smallest scheduling unit of the wireless communications system 100 may be dynamically selected (e.g., in bursts of shortened TTIs (sTTIs) ) .
[0071] Physical channels may be multiplexed for communication using a carrier according to various techniques. A physical control channel and a physical data channel may be multiplexed for signaling via a downlink carrier, for example, using one or more of time division multiplexing (TDM) techniques, frequency division multiplexing (FDM) techniques, or hybrid TDM-FDM techniques. A control region (e.g., a control resource set (CORESET) ) for a physical control channel may be defined by a set of symbol periods and may extend across the system bandwidth or a subset of the system bandwidth of the carrier. One or more control regions (e.g., CORESETs) may be configured for a set of the UEs 115. For example, one or more of the UEs 115 may monitor or search control regions for control information according to one or more search space sets, and each search space set may include one or multiple control channel candidates in one or more aggregation levels arranged in a cascaded manner. An aggregation level for a control channel candidate may refer to an amount of control channel resources (e.g., control channel elements (CCEs) ) associated with encoded information for a control information format having a given payload size. Search space sets may include common search space sets configured for sending control information to UEs 115 (e.g., one or more UEs) or may include UE-specific search space sets for sending control information to a UE 115 (e.g., a specific UE) .
[0072] A network entity 105 may provide communication coverage via one or more cells, for example a macro cell, a small cell, a hot spot, or other types of cells, or any combination thereof. The term “cell” may refer to a logical communication entity used for communication with a network entity 105 (e.g., using a carrier) and may be associated with an identifier for distinguishing neighboring cells (e.g., a physical cell identifier (PCID) , a virtual cell identifier (VCID) ) . In some examples, a cell also may refer to a coverage area 110 or a portion of a coverage area 110 (e.g., a sector) over which the logical communication entity operates. Such cells may range from smaller areas (e.g., a structure, a subset of structure) to larger areas depending on various factors such as the capabilities of the network entity 105. For example, a cell may be or include a building, a subset of a building, or exterior spaces between or overlapping with coverage areas 110, among other examples.
[0073] A macro cell generally covers a relatively large geographic area (e.g., several kilometers in radius) and may allow unrestricted access by the UEs 115 with service subscriptions with the network provider supporting the macro cell. A small cell may be associated with a network entity 105 operating with lower power (e.g., a base station 140 operating with lower power) relative to a macro cell, and a small cell may operate using the same or different (e.g., licensed, unlicensed) frequency bands as macro cells. Small cells may provide unrestricted access to the UEs 115 with service subscriptions with the network provider or may provide restricted access to the UEs 115 having an association with the small cell (e.g., the UEs 115 in a closed subscriber group (CSG) , the UEs 115 associated with users in a home or office) . A network entity 105 may support one or more cells and may also support communications via the one or more cells using one or multiple component carriers.
[0074] In some examples, a carrier may support multiple cells, and different cells may be configured according to different protocol types (e.g., MTC, narrowband IoT (NB-IoT) , enhanced mobile broadband (eMBB) ) that may provide access for different types of devices.
[0075] In some examples, a network entity 105 (e.g., a base station 140, an RU 170) may be movable and therefore provide communication coverage for a moving coverage area, such as the coverage area 110. In some examples, coverage areas 110 (e.g., different coverage areas) associated with different technologies may overlap, but the coverage areas 110 (e.g., different coverage areas) may be supported by the same network entity (e.g., a network entity 105) . In some other examples, overlapping coverage areas, such as a coverage area 110, associated with different technologies may be supported by different network entities (e.g., the network entities 105) . The wireless communications system 100 may include, for example, a heterogeneous network in which different types of the network entities 105 support communications for coverage areas 110 (e.g., different coverage areas) using the same or different RATs.
[0076] The wireless communications system 100 may support synchronous or asynchronous operation. For synchronous operation, network entities 105 (e.g., base stations 140) may have similar frame timings, and transmissions from different network entities (e.g., different ones of the network entities 105) may be approximately aligned in time. For asynchronous operation, network entities 105 may have different frame timings, and transmissions from different network entities (e.g., different ones of network entities 105) may, in some examples, not be aligned in time. The techniques described herein may be used for either synchronous or asynchronous operations.
[0077] Some UEs 115, such as MTC or IoT devices, may be relatively low cost or low complexity devices and may provide for automated communication between machines (e.g., via Machine-to-Machine (M2M) communication) . M2M communication or MTC may refer to data communication technologies that allow devices to communicate with one another or a network entity 105 (e.g., a base station 140) without human intervention. In some examples, M2M communication or MTC may include communications from devices that integrate sensors or meters to measure or capture information and relay such information to a central server or application program that uses the information or presents the information to humans interacting with the application program. Some UEs 115 may be designed to collect information or enable automated behavior of machines or other devices. Examples of applications for MTC devices include smart metering, inventory monitoring, water level monitoring, equipment monitoring, healthcare monitoring, wildlife monitoring, weather and geological event monitoring, fleet management and tracking, remote security sensing, physical access control, and transaction-based business charging.
[0078] Some UEs 115 may be configured to employ operating modes that reduce power consumption, such as half-duplex communications (e.g., a mode that supports one-way communication via transmission or reception, but not transmission and reception concurrently) . In some examples, half-duplex communications may be performed at a reduced peak rate. Other power conservation techniques for the UEs 115 may include entering a power saving deep sleep mode when not engaging in active communications, operating using a limited bandwidth (e.g., according to narrowband communications) , or a combination of these techniques. For example, some UEs 115 may be configured for operation using a narrowband protocol type that is associated with a defined portion or range (e.g., set of subcarriers or resource blocks (RBs) ) within a carrier, within a guard-band of a carrier, or outside of a carrier.
[0079] The wireless communications system 100 may be configured to support ultra-reliable communications or low-latency communications, or various combinations thereof. For example, the wireless communications system 100 may be configured to support ultra-reliable low-latency communications (URLLC) . The UEs 115 may be designed to support ultra-reliable, low-latency, or critical functions. Ultra-reliable communications may include private communication or group communication and may be supported by one or more services such as push-to-talk, video, or data. Support for ultra-reliable, low-latency functions may include prioritization of services, and such services may be used for public safety or general commercial applications. The terms ultra-reliable, low-latency, and ultra-reliable low-latency may be used interchangeably herein.
[0080] In some examples, a UE 115 may be configured to support communicating directly with other UEs (e.g., one or more of the UEs 115) via a device-to-device (D2D) communication link, such as a D2D communication link 135 (e.g., in accordance with a peer-to-peer (P2P) , D2D, or sidelink protocol) . In some examples, one or more UEs 115 of a group that are performing D2D communications may be within the coverage area 110 of a network entity 105 (e.g., a base station 140, an RU 170) , which may support aspects of such D2D communications being configured by (e.g., scheduled by) the network entity 105. In some examples, one or more UEs 115 of such a group may be outside the coverage area 110 of a network entity 105 or may be otherwise unable to or not configured to receive transmissions from a network entity 105. In some examples, groups of the UEs 115 communicating via D2D communications may support a one-to-many (1: M) system in which each UE 115 transmits to one or more of the UEs 115 in the group. In some examples, a network entity 105 may facilitate the scheduling of resources for D2D communications. In some other examples, D2D communications may be carried out between the UEs 115 without an involvement of a network entity 105.
[0081] In some systems, a D2D communication link 135 may be an example of a communication channel, such as a sidelink communication channel, between vehicles (e.g., UEs 115) . In some examples, vehicles may communicate using vehicle-to-everything (V2X) communications, vehicle-to-vehicle (V2V) communications, or some combination of these. A vehicle may signal information related to traffic conditions, signal scheduling, weather, safety, emergencies, or any other information relevant to a V2X system. In some examples, vehicles in a V2X system may communicate with roadside infrastructure, such as roadside units, or with the network via one or more network nodes (e.g., network entities 105, base stations 140, RUs 170) using vehicle-to-network (V2N) communications, or with both.
[0082] The core network 130 may provide user authentication, access authorization, tracking, Internet Protocol (IP) connectivity, and other access, routing, or mobility functions. The core network 130 may be an evolved packet core (EPC) or 5G core (5GC) , which may include at least one control plane entity that manages access and mobility (e.g., a mobility management entity (MME) , an access and mobility management function (AMF) ) and at least one user plane entity that routes packets or interconnects to external networks (e.g., a serving gateway (S-GW) , a Packet Data Network (PDN) gateway (P-GW) , or a user plane function (UPF) ) . The control plane entity may manage non-access stratum (NAS) functions such as mobility, authentication, and bearer management for the UEs 115 served by the network entities 105 (e.g., base stations 140) associated with the core network 130. User IP packets may be transferred through the user plane entity, which may provide IP address allocation as well as other functions. The user plane entity may be connected to IP services 150 for one or more network operators. The IP services 150 may include access to the Internet, Intranet (s) , an IP Multimedia Subsystem (IMS) , or a Packet-Switched Streaming Service.
[0083] The wireless communications system 100 may operate using one or more frequency bands, which may be in the range of 300 megahertz (MHz) to 300 gigahertz (GHz) . Generally, the region from 300 MHz to 3 GHz is known as the ultra-high frequency (UHF) region or decimeter band because the wavelengths range from approximately one decimeter to one meter in length. UHF waves may be blocked or redirected by buildings and environmental features, which may be referred to as clusters, but the waves may penetrate structures sufficiently for a macro cell to provide service to the UEs 115 located indoors. Communications using UHF waves may be associated with smaller antennas and shorter ranges (e.g., less than one hundred kilometers) compared to communications using the smaller frequencies and longer waves of the high frequency (HF) or very high frequency (VHF) portion of the spectrum below 300 MHz.
[0084] The wireless communications system 100 may also operate using a super high frequency (SHF) region, which may be in the range of 3 GHz to 30 GHz, also known as the centimeter band, or using an extremely high frequency (EHF) region of the spectrum (e.g., from 30 GHz to 300 GHz) , also known as the millimeter band. In some examples, the wireless communications system 100 may support millimeter wave (mmW) communications between the UEs 115 and the network entities 105 (e.g., base stations 140, RUs 170) , and EHF antennas of the respective devices may be smaller and more closely spaced than UHF antennas. In some examples, such techniques may facilitate using antenna arrays within a device. The propagation of EHF transmissions, however, may be subject to even greater attenuation and shorter range than SHF or UHF transmissions. The techniques disclosed herein may be employed across transmissions that use one or more different frequency regions, and designated use of bands across these frequency regions may differ by country or regulating body.
[0085] The wireless communications system 100 may utilize both licensed and unlicensed RF spectrum bands. For example, the wireless communications system 100 may employ License Assisted Access (LAA) , LTE-Unlicensed (LTE-U) RAT, or NR technology using an unlicensed band such as the 5 GHz industrial, scientific, and medical (ISM) band. While operating using unlicensed RF spectrum bands, devices such as the network entities 105 and the UEs 115 may employ carrier sensing for collision detection and avoidance. In some examples, operations using unlicensed bands may be based on a carrier aggregation configuration in conjunction with component carriers operating using a licensed band (e.g., LAA) . Operations using unlicensed spectrum may include downlink transmissions, uplink transmissions, P2P transmissions, or D2D transmissions, among other examples.
[0086] A network entity 105 (e.g., a base station 140, an RU 170) or a UE 115 may be equipped with multiple antennas, which may be used to employ techniques such as transmit diversity, receive diversity, multiple-input multiple-output (MIMO) communications, or beamforming. The antennas of a network entity 105 or a UE 115 may be located within one or more antenna arrays or antenna panels, which may support MIMO operations or transmit or receive beamforming. For example, one or more base station antennas or antenna arrays may be co-located at an antenna assembly, such as an antenna tower. In some examples, antennas or antenna arrays associated with a network entity 105 may be located at diverse geographic locations. A network entity 105 may include an antenna array with a set of rows and columns of antenna ports that the network entity 105 may use to support beamforming of communications with a UE 115. Likewise, a UE 115 may include one or more antenna arrays that may support various MIMO or beamforming operations. Additionally, or alternatively, an antenna panel may support RF beamforming for a signal transmitted via an antenna port.
[0087] The network entities 105 or the UEs 115 may use MIMO communications to exploit multipath signal propagation and increase spectral efficiency by transmitting or receiving multiple signals via different spatial layers. Such techniques may be referred to as spatial multiplexing. The multiple signals may, for example, be transmitted by the transmitting device via different antennas or different combinations of antennas. Likewise, the multiple signals may be received by the receiving device via different antennas or different combinations of antennas. Each of the multiple signals may be referred to as a separate spatial stream and may carry information associated with the same data stream (e.g., the same codeword) or different data streams (e.g., different codewords) . Different spatial layers may be associated with different antenna ports used for channel measurement and reporting. MIMO techniques include single-user MIMO (SU-MIMO) , for which multiple spatial layers are transmitted to the same receiving device, and multiple-user MIMO (MU-MIMO) , for which multiple spatial layers are transmitted to multiple devices.
[0088] Beamforming, which may also be referred to as spatial filtering, directional transmission, or directional reception, is a signal processing technique that may be used at a transmitting device or a receiving device (e.g., a network entity 105, a UE 115) to shape or steer an antenna beam (e.g., a transmit beam, a receive beam) along a spatial path between the transmitting device and the receiving device. Beamforming may be achieved by combining the signals communicated via antenna elements of an antenna array such that some signals propagating along particular orientations with respect to an antenna array experience constructive interference while others experience destructive interference. The adjustment of signals communicated via the antenna elements may include a transmitting device or a receiving device applying amplitude offsets, phase offsets, or both to signals carried via the antenna elements associated with the device. The adjustments associated with each of the antenna elements may be defined by a beamforming weight set associated with a particular orientation (e.g., with respect to the antenna array of the transmitting device or receiving device, or with respect to some other orientation) .
[0089] A network entity 105 or a UE 115 may use beam sweeping techniques as part of beamforming operations. For example, a network entity 105 (e.g., a base station 140, an RU 170) may use multiple antennas or antenna arrays (e.g., antenna panels) to conduct beamforming operations for directional communications with a UE 115. Some signals (e.g., synchronization signals, reference signals, beam selection signals, or other control signals) may be transmitted by a network entity 105 multiple times along different directions. For example, the network entity 105 may transmit a signal according to different beamforming weight sets associated with different directions of transmission. Transmissions along different beam directions may be used to identify (e.g., by a transmitting device, such as a network entity 105, or by a receiving device, such as a UE 115) a beam direction for later transmission or reception by the network entity 105.
[0090] Some signals, such as data signals associated with a particular receiving device, may be transmitted by a transmitting device (e.g., a network entity 105 or a UE 115) along a single beam direction (e.g., a direction associated with the receiving device, such as another network entity 105 or UE 115) . In some examples, the beam direction associated with transmissions along a single beam direction may be determined based on a signal that was transmitted along one or more beam directions. For example, a UE 115 may receive one or more of the signals transmitted by the network entity 105 along different directions and may report to the network entity 105 an indication of the signal that the UE 115 received with a highest signal quality or an otherwise acceptable signal quality.
[0091] In some examples, transmissions by a device (e.g., by a network entity 105 or a UE 115) may be performed using multiple beam directions, and the device may use a combination of digital precoding or beamforming to generate a combined beam for transmission (e.g., from a network entity 105 to a UE 115) . The UE 115 may report feedback that indicates precoding weights for one or more beam directions, and the feedback may correspond to a configured set of beams across a system bandwidth or one or more sub-bands. The network entity 105 may transmit a reference signal (e.g., a cell-specific reference signal (CRS) , a channel state information reference signal (CSI-RS) ) , which may be precoded or unprecoded. The UE 115 may provide feedback for beam selection, which may be a precoding matrix indicator (PMI) or codebook-based feedback (e.g., a multi-panel type codebook, a linear combination type codebook, a port selection type codebook) . Although these techniques are described with reference to signals transmitted along one or more directions by a network entity 105 (e.g., a base station 140, an RU 170) , a UE 115 may employ similar techniques for transmitting signals multiple times along different directions (e.g., for identifying a beam direction for subsequent transmission or reception by the UE 115) or for transmitting a signal along a single direction (e.g., for transmitting data to a receiving device) .
[0092] A receiving device (e.g., a UE 115) may perform reception operations in accordance with multiple receive configurations (e.g., directional listening) when receiving various signals from a transmitting device (e.g., a network entity 105) , such as synchronization signals, reference signals, beam selection signals, or other control signals. For example, a receiving device may perform reception in accordance with multiple receive directions by receiving via different antenna subarrays, by processing received signals according to different antenna subarrays, by receiving according to different receive beamforming weight sets (e.g., different directional listening weight sets) applied to signals received at multiple antenna elements of an antenna array, or by processing received signals according to different receive beamforming weight sets applied to signals received at multiple antenna elements of an antenna array, any of which may be referred to as “listening” according to different receive configurations or receive directions. In some examples, a receiving device may use a single receive configuration to receive along a single beam direction (e.g., when receiving a data signal) . The single receive configuration may be aligned along a beam direction determined based on listening according to different receive configuration directions (e.g., a beam direction determined to have a highest signal strength, highest signal-to-noise ratio (SNR) , or otherwise acceptable signal quality based on listening according to multiple beam directions) .
[0093] The wireless communications system 100 may be a packet-based network that operates according to a layered protocol stack. In the user plane, communications at the bearer or PDCP layer may be IP-based. An RLC layer may perform packet segmentation and reassembly to communicate via logical channels. A MAC layer may perform priority handling and multiplexing of logical channels into transport channels. The MAC layer also may implement error detection techniques, error correction techniques, or both to support retransmissions to improve link efficiency. In the control plane, an RRC layer may provide establishment, configuration, and maintenance of an RRC connection between a UE 115 and a network entity 105 or a core network 130 supporting radio bearers for user plane data. A PHY layer may map transport channels to physical channels.
[0094] The UEs 115 and the network entities 105 may support retransmissions of data to increase the likelihood that data is received successfully. Hybrid automatic repeat request (HARQ) feedback is one technique for increasing the likelihood that data is received correctly via a communication link (e.g., the communication link (s) 125, a D2D communication link 135) . HARQ may include a combination of error detection (e.g., using a cyclic redundancy check (CRC) ) , forward error correction (FEC) , and retransmission (e.g., automatic repeat request (ARQ) ) . HARQ may improve throughput at the MAC layer in relatively poor radio conditions (e.g., low signal-to-noise conditions) . In some examples, a device may support same-slot HARQ feedback, in which case the device may provide HARQ feedback in a specific slot for data received via a previous symbol in the slot. In some other examples, the device may provide HARQ feedback in a subsequent slot, or according to some other time interval.
[0095] Some examples of wireless communication systems may perform layer 1 (L1) or Layer 2 (L2) triggered mobility (LTM) . Some approaches of LTM may enable channel state information (CSI) acquisition for a candidate cell for mobility (e.g., handover or cell switching, where a UE moves to a target cell and a previous cell is deactivated, or a UE attaches to a target cell and detaches from a previous cell) . In a first approach, CSI-RS measurement or CSI reporting operations may be performed before reception of an LTM Cell Switch Command (CSC) MAC-CE. The report may be sent to the serving cell and transferred to the candidate / target cell (s) . In a second approach, CSI-RS measurement may start before reception of an LTM CSC MAC-CE and a CSI reporting operation (or additional reference signaling) may be performed after reception of the LTM CSC MAC-CE. The report may be sent directly to a target cell. In a third approach, CSI-RS measurement and CSI reporting operations may be performed after reception of an LTM CSC MAC-CE. The report may be sent directly to a target cell. LTM procedures may be distinct from carrier aggregation procedures. In LTM procedures, for instance, a UE may switch cells to a target cell and a previous cell may be deactivated. In carrier aggregation procedures, a current cell (e.g., serving cell or PCell) may be maintained and another cell (e.g., an SCell) may be activated for communication with the UE (e.g., concurrent or overlapping communication with a PCell and an SCell) .
[0096] Some wireless communications systems may communicate via one or more cells (e.g., a PCell and an SCell) . One source of latency in carrier aggregation for SCell activation may be CSI acquisition for the SCell. The latency may be due to a relatively large SCell activation delay (e.g., a delay at the UE 115 side to be prepared for CSI measurement and reporting associated with the SCell) , as well as additional delay at the network side, where a CSF report may be triggered later than the time that an SCell activation MAC-CE is transmitted (e.g., later than the SCell activation delay) .
[0097] In some approaches, 5G NR carrier aggregation delays (for a PCell, for instance) may occur. For instance, carrier aggregation activation may be performed in accordance with a sequence of operations. Examples of carrier aggregation delays (e.g., for a full buffer user datagram protocol (UDP) with near and mid cell RF field conditions) are given as follows. A UE may transmit an RRC setup completion indication to a gNB, and the gNB may respond with an RRC reconfiguration (e.g., carrier aggregation configuration) message, where a delay 1 (e.g., SCell configuration delay) may occur between the RRC setup completion indication and the RRC reconfiguration message. Examples of delay 1 (e.g., SCell configuration delay) may include 47 milliseconds (ms) for 3 carrier aggregation, or 61 ms or 62 ms for 4 carrier aggregation, among other examples. Subsequent to the RRC reconfiguration message, the UE may transmit an RRC reconfiguration completion message to the gNB, where a delay 2a may occur between the RRC reconfiguration message and the RRC reconfiguration completion message. Examples of delay 2a may include 14 ms for 3 carrier aggregation, or 15 ms or 16 ms for 4 carrier aggregation, among other examples. Subsequent to the RRC reconfiguration completion message, the gNB may transmit a downlink MAC-CE to the UE, where a delay 2b (e.g., an activation delay) may occur between the RRC reconfiguration completion message and the downlink MAC-CE. Examples of delay 2b (e.g., activation delay) may include 20 ms for 3 carrier aggregation or for 4 carrier aggregation, among other examples. Subsequent to the downlink MAC-CE, the UE may transmit a CSF report for the SCell to the gNB, where a delay 3a may occur between the downlink MAC-CE and the CSF report. Examples of delay 3a may include 76 ms for 3 carrier aggregation, or 75 ms or 73 ms for 4 carrier aggregation, among other examples. Subsequent to the CSF report, the gNB may transmit a physical downlink shared channel (PDSCH) via the SCell to the UE, where a delay 3b (e.g., scheduling delay) may occur between the CSF report and the PDSCH. Examples of delay 3b (e.g., scheduling delay) may include 8 ms for 3 carrier aggregation, or 5 ms for 4 carrier aggregation, among other examples. Cumulatively, approximately 10 ms or higher delay may occur in SCell configuration for 4 carrier aggregation compared to 3 carrier aggregation. Scheduling CSF for SCells may consume a significant amount of time, which may be reduced or improved in accordance with some of the techniques described herein.
[0098] Some examples of the techniques described herein may partially or completely move the SCell CSF report out of the timeline of cell activation. For instance, early CSF determination or reporting for an SCell may be performed (e.g., either before or during the SCell activation process) . In some approaches, CSF determination may be based on CSI-RS measurements on the SCell for SCell activation. Some restrictions or relaxations on CSI reporting or resource configuration may be utilized (e.g., a relatively smaller quantity of CSI-RS ports, or a relatively smaller RI) to enable faster CSI reporting before the SCell is actually activated. Additionally, or alternatively, some approaches may be based on predicted CSF (e.g., inter-frequency based on measurements on a PCell or another SCell) .
[0099] FIG. 2 shows an example of a network architecture 200 (e.g., a disaggregated base station architecture, a disaggregated RAN architecture) that supports channel information determination for inactive cells in accordance with one or more aspects of the present disclosure. The network architecture 200 may illustrate an example for implementing one or more aspects of the wireless communications system 100. The network architecture 200 may include one or more CUs 160-a that may communicate directly with a core network 130-a via a backhaul communication link 120-a, or indirectly with the core network 130-a through one or more disaggregated network entities 105 (e.g., a Near-RT RIC 175-b via an E2 link, or a Non-RT RIC 175-a associated with an SMO 180-a (e.g., an SMO Framework) , or both) . A CU 160-a may communicate with one or more DUs 165-a via respective midhaul communication links 162-a (e.g., an F1 interface) . The DUs 165-a may communicate with one or more RUs 170-a via respective fronthaul communication links 168-a. The RUs 170-a may be associated with respective coverage areas 110-a and may communicate with UEs 115-a via one or more communication links 125-a. In some implementations, a UE 115-a may be simultaneously served by multiple RUs 170-a.
[0100] Each of the network entities 105 of the network architecture 200 (e.g., CUs 160-a, DUs 165-a, RUs 170-a, Non-RT RICs 175-a, Near-RT RICs 175-b, SMOs 180-a, Open Clouds (O-Clouds) 205, Open eNBs (O-eNBs) 210) may include one or more interfaces or may be coupled with one or more interfaces configured to receive or transmit signals (e.g., data, information) via a wired or wireless transmission medium. Each network entity 105, or an associated processor (e.g., controller) providing instructions to an interface of the network entity 105, may be configured to communicate with one or more of the other network entities 105 via the transmission medium. For example, the network entities 105 may include a wired interface configured to receive or transmit signals over a wired transmission medium to one or more of the other network entities 105. Additionally, or alternatively, the network entities 105 may include a wireless interface, which may include a receiver, a transmitter, or transceiver (e.g., an RF transceiver) configured to receive or transmit signals, or both, over a wireless transmission medium to one or more of the other network entities 105.
[0101] In some examples, a CU 160-a may host one or more higher layer control functions. Such control functions may include RRC, PDCP, SDAP, or the like. Each control function may be implemented with an interface configured to communicate signals with other control functions hosted by the CU 160-a. A CU 160-a may be configured to handle user plane functionality (e.g., CU-UP) , control plane functionality (e.g., CU-CP) , or a combination thereof. In some examples, a CU 160-a may be logically split into one or more CU-UP units and one or more CU-CP units. A CU-UP unit may communicate bidirectionally with the CU-CP unit via an interface, such as an E1 interface when implemented in an O-RAN configuration. A CU 160-a may be implemented to communicate with a DU 165-a, as necessary, for network control and signaling.
[0102] A DU 165-a may correspond to a logical unit that includes one or more functions (e.g., base station functions, RAN functions) to control the operation of one or more RUs 170-a. In some examples, a DU 165-a may host, at least partially, one or more of an RLC layer, a MAC layer, and one or more aspects of a PHY layer (e.g., a high PHY layer, such as modules for FEC encoding and decoding, scrambling, modulation and demodulation, or the like) depending, at least in part, on a functional split, such as those defined by the 3rd Generation Partnership Project (3GPP) . In some examples, a DU 165-a may further host one or more low PHY layers. Each layer may be implemented with an interface configured to communicate signals with other layers hosted by the DU 165-a, or with control functions hosted by a CU 160-a.
[0103] In some examples, lower-layer functionality may be implemented by one or more RUs 170-a. For example, an RU 170-a, controlled by a DU 165-a, may correspond to a logical node that hosts RF processing functions, or low-PHY layer functions (e.g., performing fast Fourier transform (FFT) , inverse FFT (iFFT) , digital beamforming, physical random access channel (PRACH) extraction and filtering, or the like) , or both, based at least in part on the functional split, such as a lower-layer functional split. In such an architecture, an RU 170-a may be implemented to handle over the air (OTA) communication with one or more UEs 115-a. In some implementations, real-time and non-real-time aspects of control and user plane communication with the RU (s) 170-a may be controlled by the corresponding DU 165-a. In some examples, such a configuration may enable a DU 165-a and a CU 160-a to be implemented in a cloud-based RAN architecture, such as a vRAN architecture.
[0104] The SMO 180-a may be configured to support RAN deployment and provisioning of non-virtualized and virtualized network entities 105. For non-virtualized network entities 105, the SMO 180-a may be configured to support the deployment of dedicated physical resources for RAN coverage requirements which may be managed via an operations and maintenance interface (e.g., an O1 interface) . For virtualized network entities 105, the SMO 180-a may be configured to interact with a cloud computing platform (e.g., an O-Cloud 205) to perform network entity life cycle management (e.g., to instantiate virtualized network entities 105) via a cloud computing platform interface (e.g., an O2 interface) . Such virtualized network entities 105 can include, but are not limited to, CUs 160-a, DUs 165-a, RUs 170-a, and Near-RT RICs 175-b. In some implementations, the SMO 180-a may communicate with components configured in accordance with a 4G RAN (e.g., via an O1 interface) . Additionally, or alternatively, in some implementations, the SMO 180-a may communicate directly with one or more RUs 170-a via an O1 interface. The SMO 180-a also may include a Non-RT RIC 175-a configured to support functionality of the SMO 180-a.
[0105] The Non-RT RIC 175-a may be configured to include a logical function that enables non-real-time control and optimization of RAN elements and resources, Artificial Intelligence (AI) or Machine Learning (ML) workflows including model training and updates, or policy-based guidance of applications / features in the Near-RT RIC 175-b. The Non-RT RIC 175-a may be coupled to or communicate with (e.g., via an A1 interface) the Near-RT RIC 175-b. The Near-RT RIC 175-b may be configured to include a logical function that enables near-real-time control and optimization of RAN elements and resources via data collection and actions over an interface (e.g., via an E2 interface) connecting one or more CUs 160-a, one or more DUs 165-a, or both, as well as an O-eNB 210, with the Near-RT RIC 175-b.
[0106] In some examples, to generate AI / ML models to be deployed in the Near-RT RIC 175-b, the Non-RT RIC 175-a may receive parameters or external enrichment information from external servers. Such information may be utilized by the Near-RT RIC 175-b and may be received at the SMO 180-a or the Non-RT RIC 175-a from non-network data sources or from network functions. In some examples, the Non-RT RIC 175-a or the Near-RT RIC 175-b may be configured to tune RAN behavior or performance. For example, the Non-RT RIC 175-a may monitor long-term trends and patterns for performance and employ AI or ML models to perform corrective actions through the SMO 180-a (e.g., reconfiguration via O1) or via generation of RAN management policies (e.g., A1 policies) .
[0107] FIG. 3 shows an example of a wireless communications system 300 that supports channel information determination for inactive cells in accordance with one or more aspects of the present disclosure. The wireless communications system 300 may implement aspects of or may be implemented by aspects of the wireless communications system 100 or of the network architecture 200. For example, the wireless communications system 300 includes a UE 115-b, which may be an example of a UE 115 described with respect to FIG. 1 or a UE 115-a described with respect to FIG. 2. The wireless communications system 300 also includes a network entity 105-aand a network entity 105-b, which may be examples of a network entity 105 as described with respect to FIG. 1. In some examples, the network entity 105-a and the network entity 105-b may be a same network entity.
[0108] The UE 115-b may communicate with the network entity 105-a or the network entity 105-b. For example, the network entity 105-a may provide an active cell 305-a for the UE 115-b or the network entity 105-b may provide an inactive SCell 305-b for communication. While an active cell 305-a and an inactive SCell 305-b are shown in the example of FIG. 3, a different quantity of cells (e.g., one or more serving cells, PCells, SCells, or other cells) may be utilized in some examples. The active cell 305-a and the inactive SCell 305-b are illustrated as overlapping in FIG. 3. In some examples, the active cell 305-a and the inactive SCell 305-b may be provided from one network entity 105-a.
[0109] As used herein, a “cell” may refer to a serving cell, PCell, or an SCell. A serving cell or PCell may be a cell that is currently providing a communication resource to a UE (e.g., UE 115-b) . For instance, a PCell may be utilized for initial access by the UE 115-b. An SCell may be a cell capable of providing one or more resources (e.g., carrier (s) ) for carrier aggregation with a PCell. For instance, an SCell may be activated to provide one or more additional carriers for communication with the UE 115-b. In some examples, the active cell 305-a may be a PCell or an SCell, and the SCell 305-b may be an SCell for which an activation procedure has not been completed. One or more PCells or SCells may be utilized in accordance with some examples of the techniques described herein.
[0110] The UE 115-b may establish one or more communication links with one or more of the network entities 105-a, 105-b. In some examples, a communication link may be an example of an NR or LTE link between the UE 115-b and a network entity 105-a or network entity 105-b. The communication link may include one or more uni-directional or bi-directional links that enable uplink communications, downlink communications, or a combination thereof. For example, the UE 115-b may transmit uplink signals (e.g., uplink transmissions) , such as uplink control signals or uplink data signals, to one or more of the network entity 105-a or the network entity 105-b. One or more of the network entity 105-a or the network entity 105-b may transmit downlink signals (e.g., downlink transmissions) , such as downlink control signals or downlink data signals, to the UE 115-b using a communication link. In the example of FIG. 3, a first communication link 125-a between the network entity 105-a and the UE 115-b is shown. In some aspects, a second communication link between the network entity 105-b and the UE 115-b may be utilized. In some cases, multiple communication links may operate in overlapping time frames or may operate concurrently.
[0111] The network entity 105-a may output (e.g., transmit) , or the UE 115-b may obtain (e.g., receive) , via an active cell 305-a, configuration information 315 indicating one or more resources for measurement by the UE 115-b. For instance, the configuration information may indicate one or more resources, where the one or more resources may include time resource (s) (e.g., a time period (s) , frame (s) , subframe (s) , slot (s) , or subslot (s) , among other examples) , frequency resource (s) (e.g., frequency range (s) , bandwidth (s) , carrier (s) , subcarrier (s) , or OFDM carrier (s) , among other examples) , spatial resource (s) (e.g., area (s) , angle (s) , layer (s) , or beam (s) , among other examples) , antenna resource (s) , code resource (s) , or any combination thereof. The one or more resources may correspond to the active cell 305-a (or the network entity 105-a) , the inactive SCell 305-b (or the network entity 105-b) , or a combination thereof. For instance, the configuration information may indicate one or more reference signal resources for communication (e.g., transmission or reception) of a reference signal (e.g., CSI-RS, SRS, or other signal) . The configuration information may be communicated via an RRC message, MAC-CE, downlink control information (DCI) , control information, or other information or message.
[0112] In some examples, the configuration information 315 may be a request communicated via the active cell 305-a, or a request communicated via the active cell 305-a may include or indicate the configuration information 315. For early or predicted CSI for SCell activation, for instance, the UE 115-b may be requested to transmit an early or predicted CSI report corresponding to the inactive SCell 305-b (e.g., SCell that is not yet activated or for which activation is not yet complete) . As used herein, the terms “early” or “predicted” for channel information, a CSI request, a CSI report, or CSF, may refer to channel information (e.g., channel information 320) , a CSI request, a CSI report, or CSF (for an inactive SCell, for instance) that is determined or communicated previous to complete activation of an inactive SCell.
[0113] The UE 115-b may output (e.g., transmit) , or the network entity 105-a may obtain (e.g., receive) , via the active cell 305-a, channel information 320 associated with the inactive SCell 305-b. The channel information 320 (e.g., CSI report) may be based on the measurement of the one or more resources (e.g., determined by the UE 115-b based on the measurement) . For instance, the UE 115-b may receive or measure one or more reference signals via the one or more resources indicated by the configuration information, where the one or more resources correspond to the active cell 305-a, the inactive SCell 305-b, or a combination thereof. In some approaches, the UE 115-b may measure the one or more resources (e.g., the one or more reference signals) to produce channel quality information (CQI) , a precoding matrix indicator (PMI) , a rank indicator (RI) , reference signal received power (RSRP) , received signal strength indicator (RSSI) , reference signal received quality (RSRQ) , signal-to-noise ratio (SNR) , a channel estimate, or other channel information 320. The channel information 320 may indicate one or more values based on the measurement (s) .
[0114] In some examples, the configuration information 315 (e.g., CSI request) or the channel information 320 (e.g., CSI report) may be communicated (e.g., output, transmitted, obtained, or received) via the active cell 305-a, while the measurement (e.g., CSI measurement) may be under the inactive SCell 305-b (e.g., deactivated SCell) or may correspond to the inactive SCell 305-b. For instance, the channel information 320 may be transmitted to the network entity 105-a via the active cell 305-a, while the channel information 320 indicates one or more measurements for the inactive SCell 305-b, where the one or more measurements for the inactive SCell 305-b may include, or may be based on, one or more measurements of resources corresponding to the active cell 305-a, corresponding to the inactive SCell 305-b, or a combination thereof.
[0115] In some approaches, the channel information 320 may be communicated (e.g., output, transmitted, obtained, or received) previous to completion of an activation of the inactive SCell 305-b for carrier aggregation with the active cell 305-a. As used herein, activation of an inactive cell may include an activation period or activation delay. Activation of an inactive cell may begin based on an activation command or signal (e.g., a MAC-CE for SCell activation) . After the activation command or signal, the activation period or activation delay may include one or more periods. Examples of the one or more periods may include a period for acknowledgment (ACK) (of the activation command or signal, for instance) , a period for a MAC-CE L2 procedure, a period for RF tuning, a period for RF warmup, a period for a processing margin (e.g., software delay for RF or baseband processing) , a period for setting automatic gain control (AGC) , a period for synchronization (e.g., communication or acquisition of a primary synchronization signal (PSS) , of a secondary synchronization signal (SSS) , or of a master information block (MIB) , a period for a synchronization margin (e.g., a margin for a synchronization signal block (SSB) ) , a period for reporting (e.g., CQI reporting after an aperiodic CQI trigger) , or a combination thereof, among other examples. The activation may not be complete until the one or more periods have elapsed (e.g., until after CQI reporting is completed) . Examples of the one or more periods are provided with reference to FIG. 4.
[0116] In some examples, the network entity 105-a may output (e.g., transmit) , or the UE 115-b may obtain (e.g., receive) , via the active cell 305-a, an activation command to activate the inactive SCell 305-b for carrier aggregation with the active cell 305-a. The configuration information 315 may be communicated (e.g., output, transmitted, obtained, or received) or the channel information 320 may be communicated (e.g., output, transmitted, obtained, or received) previous to reception of the activation command. For instance, a CSI request or the CSI report may be communicated before an SCell activation command is sent (for a deactivated SCell) . The UE 115-b may receive a request signaling (e.g., the configuration information 315) for an early CSI report before an SCell activation command.
[0117] In some approaches, the network entity 105-a may output (e.g., transmit) , or the UE 115-b may obtain (e.g., receive) , via the active cell 305-a, an activation command to activate the inactive SCell 305-b for carrier aggregation with the active cell 305-a. The configuration information 315 may be communicated (e.g., output, transmitted, obtained, or received) or the channel information 320 may be communicated (e.g., output, transmitted, obtained, or received) subsequent to reception of the activation command and during an activation delay that precedes the completion of the activation of the inactive SCell 305-b. In some aspects, a CSI request or a CSI report may be communicated (e.g., output, transmitted, obtained, or received) during the SCell activation procedure. For instance, an SCell activation command may be communicated, but the SCell may not be fully activated yet (e.g., may be within the SCell activation delay) , where the early or predicted CSI report may be communicated before the SCell is fully activated.
[0118] In some examples, the activation command may be communicated (e.g., output, transmitted, obtained, or received) separate from the configuration information 315, or the configuration information 315 may be communicated (e.g., output, transmitted, obtained, or received) with the activation command. For instance, the request signaling (e.g., configuration information 315) for an early or predicted CSI report may be separate from the SCell activation command. Additionally, or alternatively, the request signaling (e.g., configuration information 315) for an early or predicted CSI report may be provided via the SCell activation command.
[0119] In some aspects, the SCell activation command may indicate a request for an early or predicted CSI report on the SCell (e.g., such that the requested CSI report is communicated before the SCell is completely activated) . In some approaches, one or more MAC-CE fields may be included in (e.g., added to) the SCell activation command for indicating which early or predicted CSI report is requested. Additionally, or alternatively, a default early or predicted CSI report may be triggered by the SCell activation command.
[0120] In some examples, the configuration information 315 may indicate the one or more resources corresponding to the inactive SCell 305-b or multiple inactive SCells, or may indicate the one or more resources corresponding to one or more active cells, where the channel information 320 may be determined based on the one or more resources. In some aspects, for CSI measurement resource configuration for an early CSI report, a CSI measurement resource configuration may include one or more reference signals from a single deactivated SCell (e.g., the inactive SCell 305-b) . For example, configuring one or more reference signals from a single deactivated SCell may be helpful for CSI requests or CSI reports during SCell activation because a single SCell to be activated may be measured.
[0121] Additionally, or alternatively, a CSI measurement resource configuration may include one or more reference signals from multiple deactivated SCells. For example, configuring reference signals from multiple deactivated SCell may be helpful for approaches where a CSI request or CSI report is communicated before an activation command because multiple candidate SCells may be measured and a subset of the candidate SCells (e.g., potential candidate SCells or candidate SCells with measurements that satisfy a condition or threshold) may be reported.
[0122] As used herein, determination (e.g., measurement, calculation, computation, or prediction) of channel information 320 may be performed in accordance with one or more approaches. In some examples, the channel information 320 may be directly measured or calculated. For instance, channel information 320 corresponding to the inactive SCell 305-b may be measured or calculated based on one or more resources or reference signals corresponding to the inactive SCell 305-b. Additionally, or alternatively, channel information 320 corresponding to the inactive SCell 305-b may be determined based on measurements or calculations corresponding to another cell (e.g., the active cell 305-a) . For instance, the UE 115-b may measure or calculate measurements for one or more resources or reference signals corresponding to the active cell 305-a, and may determine channel information 320 (e.g., one or more measurements) corresponding to the inactive SCell 305-b (without measurement (s) from the SCell 305-b in some approaches) . For instance, the UE 115-b may employ one or more deterministic calculations that relate measurements from the active cell 305-a to measurements for the inactive SCell 305-b. Additionally, or alternatively, the UE 115-b may employ one or more artificial intelligence or machine learning (AI / ML) approaches to determine (e.g., calculate, predict, or infer) measurements for the inactive SCell 305-b based on one or more measurements from the active cell 305-a. For instance, an AI / ML model may be trained (based on ground truth information or measurements from the active cell 305-a and the inactive SCell 305-b) to determine (e.g., calculate, predict, or infer) measurements for the inactive SCell 305-b based on one or more measurements from the active cell 305-a (without current measurements from the inactive SCell 305-b in some approaches) .
[0123] For a CSI measurement resource configuration for a CSI report (e.g., early or predicted CSI report) , a CSI measurement resource configuration (e.g., configuration information 315) may indicate one or more reference signals from an active cell 305-a(e.g., active PCell or SCell) and the UE 115-b may determine (e.g., predict) one or more CSI metrics applicable for the inactive SCell 305-b (e.g., a deactivated SCell) . In one example, a CSI measurement resource configuration (e.g., configuration information 315) may indicate one or more reference signals from an active cell 305-a (e.g., active PCell or SCell) , and the UE 115-b may determine (e.g., predict) CQI for an inactive SCell 305-b (e.g., a deactivated SCell) . In another example, a CSI measurement resource configuration (e.g., configuration information 315) may include one or more reference signals from an active cell 305-a (e.g., active PCell or SCell) , which may be associated with one or more reference signals from the inactive SCell 305-b (e.g., deactivated SCell) . The UE 115-b may determine (e.g., predict) an associated beam or reference signal (e.g., a “best” associated beam or reference signal) for the inactive SCell 305-b based on the one or more beams or reference signals measured in the active cell 305-a.
[0124] In some approaches, the channel information 320 may be communicated (e.g., output, transmitted, obtained, or received) after a reference signal is synchronized. The reference signal may be associated with the one or more resources. For a CSI measurement resource configuration (e.g., configuration information 315) for an early CSI report or predicted CSI report, for instance, the UE 115-b may communicate a CSI report (e.g., channel information 320) when (e.g., after or only when) a measurement reference signal has been synchronized. In some examples, the UE 115-b may store an indication of one or more quasi-colocation (QCL) properties for a reference signal associated with the one or more resources. For instance, the UE 115-b may communicate a CSI report (e.g., channel information 320) and store the QCL properties for the reported reference signal (where the reported reference signal may be synchronized in some approaches) .
[0125] In some aspects, the configuration information 315 may indicate a report configuration identifier from a set of report configuration identifiers associated with the active cell 305-a or the inactive SCell 305-b. The configuration information 315 may indicate a measurement resource identifier that may be associated with the report configuration identifier or that may be from a set of measurement resource identifiers associated with the active cell 305-a or the inactive SCell 305-b. In some examples, a measurement resource identifier may indicate (or may be utilized to determine) one or more resources (e.g., reference signal (s) ) to utilize for measurement for the determination of channel information for one or more SCells. For CSI request signaling for an early or predicted CSI report, for instance, the CSI request signaling (e.g., configuration information 315) may indicate a CSI report configuration identifier that may be from an identifier list configured in an active cell (e.g., active cell 305-a) , or the associated CSI measurement resource configuration identifier may be from an identifier list configured in an active cell (e.g., active cell 305-a) . In some approaches, the CSI measurement resource configuration (e.g., configuration information 315) may include one or more SCell indexes or may indicate one or more reference signals configured in one or more deactivated SCells (e.g., the inactive SCell 305-b) . In some examples, the configuration information 315 may indicate a report configuration identifier and a measurement resource identifier (e.g., together in a same message or communication) . In some examples, the report configuration identifier may be communicated separately from the measurement resource identifier (e.g., in separate signaling, information, or messages) . In some cases, the CSI measurement resource configuration may be carried out via RRC signaling for CSI measurement or reporting configuration under carrier aggregation.
[0126] Additionally, or alternatively, CSI request signaling (e.g., configuration information 315) may indicate a CSI report configuration identifier from an identifier list configured in a deactivated cell (e.g., the inactive SCell 305-b) , or the associated CSI measurement resource configuration identifier may be from an identifier list configured in the deactivated SCell (e.g., the inactive SCell 305-b) . In some aspects, the CSI request signaling may additionally indicate the deactivated SCell index to indicate which SCell is requested for the early or predicted CSI report.
[0127] In some examples, determination or communication of the channel information 320 (e.g., an early or predicted CSI report) may be triggered. The time domain behavior of the channel information 320 (e.g., early or predicted CSI report) may be periodical, semi-persistent, or aperiodic. In some aspects, determination or communication of the channel information 320 (e.g., early or predicted CSI report) may be triggered or requested based on RRC signaling, a MAC-CE, or DCI.
[0128] In some approaches, the network entity 105-a may output (e.g., transmit) , or the UE 115-b may obtain (e.g., receive) , an RRC reconfiguration message, where the channel information 320 transmitted previous to completion of the activation of the inactive SCell 305-b is triggered based at least in part on the RRC reconfiguration message. In some aspects, RRC signaling may be utilized (e.g., for a periodical CSI report) . After RRC reconfiguration for an SCell, for example, the UE 115-b may transmit an early or predicted CSI report (as soon as possible, for instance) , even though the SCell (e.g., the inactive SCell 305-b) is deactivated.
[0129] In some aspects, the network entity 105-a may output (e.g., transmit) , or the UE 115-b may obtain (e.g., receive) , a MAC-CE or DCI, where the channel information 320 transmitted previous to completion of the activation of the inactive SCell 305-b may be communicated (e.g., output, transmitted, obtained, or received) periodically, semi-persistently, or aperiodically based on the MAC-CE or the DCI. For instance, a MAC-CE may be utilized to trigger or request an early or predicted CSI report. In some approaches, the MAC-CE may be a dedicated early or predicted CSI report request MAC-CE, or may be a MAC-CE that is enhanced for another purpose such as an SCell activation command. In some examples, a MAC-CE may be used for requesting a periodic, semi-persistent, or aperiodic early or predicted CSI report. For a periodic or semi-persistent CSI report, a MAC-CE may be utilized to indicate the start of an early or predicted CSI report. For an aperiodic CSI report, a MAC-CE may be utilized for triggering a one-shot early or predicted CSI report.
[0130] In some approaches, DCI may be utilized for triggering or requesting a periodic, semi-persistent, or aperiodic early or predicted CSI report. For a periodic or semi-persistent CSI report, DCI may be utilized to indicate the start of an early or predicted CSI report. For an aperiodic CSI report, DCI may be utilized for triggering a one-shot early or predicted CSI report.
[0131] In some examples, the UE 115-b may output (e.g., transmit) , or the network entity 105-a may obtain (e.g., receive) , via the active cell 305-a, capability information indicating a capability of the UE 115-b to transmit the channel information 320 associated with the inactive SCell 305-b previous to completion of the activation of the inactive SCell 305-b for carrier aggregation with the active cell 305-a. For instance, the UE 115-b may have a capability to support an early or predicted CSI report. The capability information may indicate one or more UE capabilities. For example, the UE 115-b may indicate the UE capability to support early CSI or a predicted CSI report for a deactivated SCell (e.g., the inactive SCell 305-b) . In some approaches, the UE 115-b may indicate a UE capability of a quantity (e.g., maximum quantity) of supported early CSI or predicted CSI report (s) for one or more deactivated SCells (e.g., inactive SCell 305-b) . In some aspects, the UE 115-b may indicate a UE capability of a quantity (e.g., maximum quantity) of measurements or active reference signal (s) for early CSI or a predicted CSI report for one or more deactivated SCells (e.g., inactive SCell 305-b) . The indicated quantity may be a quantity per CSI report, per component carrier, across component carriers, per band, or any combination thereof. In some examples, the UE 115-b may indicate a UE capability of a quantity (e.g., maximum quantity) of measurement (s) or active CSI-RS port (s) for early CSI or a predicted CSI report for one or more deactivated SCells (e.g., inactive SCell 305-b) . In some aspects, the quantity of measurement (s) or active CSI-RS port (s) may be per CSI report, per component carrier, across component carriers, per band, or any combination thereof.
[0132] FIG. 4 shows an example of a timing diagram 400 that supports channel information determination for inactive cells in accordance with one or more aspects of the present disclosure. The timing diagram 400 illustrates examples of periods related to SCell activation (e.g., activation delays) . While some examples of periods are illustrated in FIG. 4, FIG. 4 may not show all types of delays (e.g., a scheduling delay for a network to trigger aperiodic CSI) that may occur during SCell activation. One or more of the devices described herein (e.g., the UE 115-b or network entity 105-a) may operate in accordance with one or more of the operations, delays, or timings described with reference to FIG. 4.
[0133] As illustrated in FIG. 4, a network entity may output (e.g., transmit) a physical downlink control channel (PDCCH) 460 to a UE. After the PDCCH 460, the network entity may output (e.g., transmit) a PDSCH 470 with a MAC-CE 465 for SCell activation (e.g., an activation command) . A first time period 405 (e.g., delay) from the PDCCH 460 to the PDSCH 470 may be referred to as a k0 period. After the PDSCH 470, the network entity may output (e.g., transmit) an ACK 475 for the PDSCH 470 or MAC-CE 465 to indicate that the PDSCH 470 or MAC-CE 465 was received. A second time period 410 (e.g., delay) from the PDSCH 470 (or MAC-CE 465) to the ACK 475 may be referred to as a k1 period. A third time period 415 (e.g., delay) corresponding to the ACK 475 may be referred to as period A. The third time period 415 or period A may occupy 1–14 symbols, in some examples.
[0134] A fourth time period 420 (e.g., delay) may be referred to as period B. The fourth time period 420 or period B may be a period for a MAC-CE L2 procedure. A fifth time period 425 (e.g., delay) may be referred to as period C. The fifth time period 425 or period C may be a period for RF tuning (e.g., for a UE to retune RF circuitry) . A sixth time period 430 (e.g., delay) may be referred to as period D. The sixth time period 430 or period D may be a period for RF warmup. A seventh time period 435 (e.g., delay) may be referred to as period E. The seventh time period 435 or period E may be a period for a processing margin (e.g., software delay for RF or baseband processing) . After the seventh time period 435, the UE may be ready 480 for reception.
[0135] An eighth fourth time period 440 (e.g., delay) may be referred to as period F. The eighth time period 440 or period F may be a period for setting AGC. A ninth time period 445 (e.g., delay) may be referred to as period I. The ninth time period 445 or period I may be a period for synchronization (e.g., communication or acquisition of a PSS, of an SSS, or of an MIB) . A tenth time period 450 (e.g., delay) may be referred to as period G. The tenth time period 450 or period G may be a period for a synchronization margin (e.g., a margin for an SSB) . An eleventh time period 455 (e.g., delay) may be referred to as period H. The eleventh time period 455 or period H may be a period for reporting (e.g., CQI reporting after an aperiodic CQI trigger 485) . After the eleventh time period 455, the UE may output (e.g., transmit) CQI 490 to the network entity. After CQI 490 transmission, SCell activation may be complete 495.
[0136] Examples of times for some of the periods are provided in Table (1) (relative to frequency range 1 (FR1) , for instance) . The values in Table (1) are given in ms, unless noted otherwise. Table (1) In Table (1) , k1+A for SCellMeasCycle > 160 ms may be 2 ms (with k1=1 and A up to 1 slot) . F for SCellMeasCycle ≤ 160 ms may be 20 ms (e.g., 1 SSB-based measurement timing configuration (SMTC) ) . F for SCellMeasCycle > 160 ms may be 40 ms (e.g., 2 SMTC) . H for SCellMeasCycle ≤ 160 ms may be 1.57 ms (e.g., 22 symbols) . While some examples of time periods are given with reference to FIG. 4, one or more of the time periods may have different values, may be omitted, may be combined, or may overlap in some cases.
[0137] In some examples of the techniques described herein, configuration information 402 (e.g., configuration information 315) or channel information 404 (e.g., channel information 320) may be communicated in a first duration 406 or a second duration 408. For instance, configuration information 402 (e.g., a CSI request) or channel information 404 (e.g., a CSI report) may be communicated in the first duration 406 before the MAC-CE 465 is communicated (e.g., before an SCell activation command is communicated) . Additionally, or alternatively, configuration information 402 (e.g., a CSI request) or channel information 404 (e.g., a CSI report) may be communicated in the second duration 408 before SCell activation is complete 495 (e.g., before the CQI 490 is fully communicated) . In some aspects, the configuration information 402 or the channel information 404 may be communicated during or before one or more of the periods described with reference to FIG. 4 (e.g., during the first period 405, the second period 410, the third period 415, the fourth period 420, the fifth period 425, the sixth period 430, the seventh period 435, the eighth period 440, the ninth period 445, the tenth period 450, the eleventh period 455, or a combination thereof. Communicating (e.g., outputting, transmitting, obtaining, or receiving) the configuration information 402 or the channel information 404 before the SCell activation is complete 495 may reduce a delay for adding an SCell via carrier aggregation in accordance with some of the techniques described herein.
[0138] FIG. 5 shows an example of a process flow 500 that supports channel information determination for inactive cells in accordance with one or more aspects of the present disclosure. The process flow 500 may include a UE 115-c, which may be an example of one or more of the UEs 115, 115-a, 115-b as described herein with reference to FIG. 1, FIG. 2, FIG. 3, or FIG. 4. The process flow 500 may also include a network entity 105-c and a network entity 105-d, one or more of which may be an example of one or more of the network entities 105, 105-a, 105-b as described herein with reference to FIG. 1, FIG. 3, or FIG. 4. The network entity 105-c may correspond to or provide an active cell. The network entity 105-d may correspond to or provide an inactive cell (e.g., inactive SCell) .
[0139] In the following description of the process flow 500, the operations between the network entity 105-c, the network entity 105-d, or the UE 115-c may be performed in the example order shown, in a different order than the example order shown, or the operations performed by the network entity 105-c, the network entity 105-d, or the UE 115-c may be performed in different orders or at different times. One or more operations may be omitted from the process flow 500, or one or more other operations may be added to the process flow 500.
[0140] At 505, the UE 115-c may output (e.g., transmit) , or the network entity 105-c may obtain (e.g., receive) , capability information. The capability information may be communicated as described with reference to FIG. 3.
[0141] At 510, the network entity 105-c may output (e.g., transmit) , or the UE 115-c may obtain (e.g., receive) , configuration information. The configuration information may be communicated as described with reference to one or more of FIG. 3 or FIG. 4.
[0142] At 515, the network entity 105-c may output (e.g., transmit) , or the UE 115-c may obtain (e.g., receive) , signaling. The signaling (e.g., reference signaling or CSI-RS, among other examples) may be communicated as described with reference to FIG. 3.
[0143] At 520, the network entity 105-d may output (e.g., transmit) , or the UE 115-c may obtain (e.g., receive) , signaling. The signaling (e.g., reference signaling or CSI-RS, among other examples) may be communicated as described with reference to FIG. 3.
[0144] At 525, the UE 115-c may output (e.g., transmit) , or the network entity 105-c may obtain (e.g., receive) , channel information. The channel information (e.g., CQI) may be communicated as described with reference to one or more of FIG. 3 or FIG. 4.
[0145] At 530, the network entity 105-c may output (e.g., transmit) , or the UE 115-c may obtain (e.g., receive) , an activation command. The activation command (e.g., a MAC-CE to activate an SCell corresponding to the network entity 105-d) may be communicated as described with reference to one or more of FIG. 3 or FIG. 4.
[0146] At 535, the network entity 105-c may output (e.g., transmit) , or the UE 115-c may obtain (e.g., receive) , communication. The communication may include payload data communicated via carrier aggregation 545.
[0147] At 540, the network entity 105-d may output (e.g., transmit) , or the UE 115-c may obtain (e.g., receive) , communication. The communication may include payload data communicated via carrier aggregation 545.
[0148] FIG. 6 shows a block diagram 600 of a device 605 that supports channel information determination for inactive cells in accordance with one or more aspects of the present disclosure. The device 605 may be an example of aspects of a UE 115 as described herein. The device 605 may include a receiver 610, a transmitter 615, and a communications manager 620. The device 605, or one or more components of the device 605 (e.g., the receiver 610, the transmitter 615, the communications manager 620) , may include at least one processor, which may be coupled with at least one memory, to, individually or collectively, support or enable the described techniques. Each of these components may be in communication with one another (e.g., via one or more buses) .
[0149] The receiver 610 may provide a means for receiving information such as packets, user data, control information, or any combination thereof associated with various information channels (e.g., control channels, data channels, information channels related to channel information determination for inactive cells) . Information may be passed on to other components of the device 605. The receiver 610 may utilize a single antenna or a set of multiple antennas.
[0150] The transmitter 615 may provide a means for transmitting signals generated by other components of the device 605. For example, the transmitter 615 may transmit information such as packets, user data, control information, or any combination thereof associated with various information channels (e.g., control channels, data channels, information channels related to channel information determination for inactive cells) . In some examples, the transmitter 615 may be co-located with a receiver 610 in a transceiver module. The transmitter 615 may utilize a single antenna or a set of multiple antennas.
[0151] The communications manager 620, the receiver 610, the transmitter 615, or various combinations or components thereof may be examples of means for performing various aspects of channel information determination for inactive cells as described herein. For example, the communications manager 620, the receiver 610, the transmitter 615, or various combinations or components thereof may be capable of performing one or more of the functions described herein.
[0152] In some examples, the communications manager 620, the receiver 610, the transmitter 615, or various combinations or components thereof may be implemented in hardware (e.g., in communications management circuitry) . The hardware may include at least one of a processor, a digital signal processor (DSP) , a central processing unit (CPU) , an application-specific integrated circuit (ASIC) , a field-programmable gate array (FPGA) or other programmable logic device, a microcontroller, discrete gate or transistor logic, discrete hardware components, or any combination thereof configured as or otherwise supporting, individually or collectively, a means for performing the functions described in the present disclosure. In some examples, at least one processor and at least one memory coupled with the at least one processor may be configured to perform one or more of the functions described herein (e.g., by one or more processors, individually or collectively, executing instructions stored in the at least one memory) .
[0153] Additionally, or alternatively, the communications manager 620, the receiver 610, the transmitter 615, or various combinations or components thereof may be implemented in code (e.g., as communications management software or firmware) executed by at least one processor (e.g., referred to as a processor-executable code) . If implemented in code executed by at least one processor, the functions of the communications manager 620, the receiver 610, the transmitter 615, or various combinations or components thereof may be performed by a general-purpose processor, a DSP, a CPU, an ASIC, an FPGA, a microcontroller, or any combination of these or other programmable logic devices (e.g., configured as or otherwise supporting, individually or collectively, a means for performing the functions described in the present disclosure) .
[0154] In some examples, the communications manager 620 may be configured to perform various operations (e.g., receiving, obtaining, monitoring, outputting, transmitting) using or otherwise in cooperation with the receiver 610, the transmitter 615, or both. For example, the communications manager 620 may receive information from the receiver 610, send information to the transmitter 615, or be integrated in combination with the receiver 610, the transmitter 615, or both to obtain information, output information, or perform various other operations as described herein.
[0155] For example, the communications manager 620 is capable of, configured to, or operable to support a means for receiving, from an active cell, configuration information indicating one or more resources for measurement by the UE. The communications manager 620 is capable of, configured to, or operable to support a means for transmitting, to the active cell, channel information associated with an inactive SCell, where the channel information is determined by the UE based on the measurement of the one or more resources and is transmitted previous to completion of an activation of the inactive SCell for carrier aggregation with the active cell.
[0156] By including or configuring the communications manager 620 in accordance with examples as described herein, the device 605 (e.g., at least one processor controlling or otherwise coupled with the receiver 610, the transmitter 615, the communications manager 620, or a combination thereof) may support techniques for reduced processing, reduced power consumption, or more efficient utilization of communication resources.
[0157] FIG. 7 shows a block diagram 700 of a device 705 that supports channel information determination for inactive cells in accordance with one or more aspects of the present disclosure. The device 705 may be an example of aspects of a device 605 or a UE 115 as described herein. The device 705 may include a receiver 710, a transmitter 715, and a communications manager 720. The device 705, or one or more components of the device 705 (e.g., the receiver 710, the transmitter 715, the communications manager 720) , may include at least one processor, which may be coupled with at least one memory, to support the described techniques. Each of these components may be in communication with one another (e.g., via one or more buses) .
[0158] The receiver 710 may provide a means for receiving information such as packets, user data, control information, or any combination thereof associated with various information channels (e.g., control channels, data channels, information channels related to channel information determination for inactive cells) . Information may be passed on to other components of the device 705. The receiver 710 may utilize a single antenna or a set of multiple antennas.
[0159] The transmitter 715 may provide a means for transmitting signals generated by other components of the device 705. For example, the transmitter 715 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 channel information determination for inactive cells) . In some examples, the transmitter 715 may be co-located with a receiver 710 in a transceiver module. The transmitter 715 may utilize a single antenna or a set of multiple antennas.
[0160] The device 705, or various components thereof, may be an example of means for performing various aspects of channel information determination for inactive cells as described herein. For example, the communications manager 720 may include a configuration component 725 a channel component 730, or any combination thereof. The communications manager 720 may be an example of aspects of a communications manager 620 as described herein. In some examples, the communications manager 720, or various components thereof, may be configured to perform various operations (e.g., receiving, obtaining, monitoring, outputting, transmitting) using or otherwise in cooperation with the receiver 710, the transmitter 715, or both. For example, the communications manager 720 may receive information from the receiver 710, send information to the transmitter 715, or be integrated in combination with the receiver 710, the transmitter 715, or both to obtain information, output information, or perform various other operations as described herein.
[0161] The configuration component 725 is capable of, configured to, or operable to support a means for receiving, from an active cell, configuration information indicating one or more resources for measurement by the UE. The channel component 730 is capable of, configured to, or operable to support a means for transmitting, to the active cell, channel information associated with an inactive SCell, where the channel information is determined by the UE based on the measurement of the one or more resources and is transmitted previous to completion of an activation of the inactive SCell for carrier aggregation with the active cell.
[0162] FIG. 8 shows a block diagram 800 of a communications manager 820 that supports channel information determination for inactive cells in accordance with one or more aspects of the present disclosure. The communications manager 820 may be an example of aspects of a communications manager 620, a communications manager 720, or both, as described herein. The communications manager 820, or various components thereof, may be an example of means for performing various aspects of channel information determination for inactive cells as described herein. For example, the communications manager 820 may include a configuration component 825, a channel component 830, a capability component 835, an activation component 840, an indication component 845, a control component 850, or any combination thereof. Each of these components, or components or subcomponents thereof (e.g., one or more processors, one or more memories) , may communicate, directly or indirectly, with one another (e.g., via one or more buses) .
[0163] The configuration component 825 is capable of, configured to, or operable to support a means for receiving, from an active cell, configuration information indicating one or more resources for measurement by the UE. The channel component 830 is capable of, configured to, or operable to support a means for transmitting, to the active cell, channel information associated with an inactive SCell, where the channel information is determined by the UE based on the measurement of the one or more resources and is transmitted previous to completion of an activation of the inactive SCell for carrier aggregation with the active cell.
[0164] In some examples, the capability component 835 is capable of, configured to, or operable to support a means for transmitting, to the active cell, capability information indicating a capability of the UE to transmit the channel information associated with the inactive SCell previous to completion of the activation of the inactive SCell for carrier aggregation with the active cell.
[0165] In some examples, the activation component 840 is capable of, configured to, or operable to support a means for receiving, from the active cell, an activation command to activate the inactive SCell for carrier aggregation with the active cell, where the configuration information is received and the channel information is transmitted previous to reception of the activation command.
[0166] In some examples, the activation component 840 is capable of, configured to, or operable to support a means for receiving, from the active cell, an activation command to activate the inactive SCell for carrier aggregation with the active cell, where the configuration information is received or the channel information is transmitted subsequent to reception of the activation command and during an activation delay that precedes the completion of the activation of the inactive SCell.
[0167] In some examples, the activation command is received separate from the configuration information. In some examples, the configuration information is received with the activation command.
[0168] In some examples, the configuration information indicates the one or more resources corresponding to the inactive SCell or multiple inactive SCells, or indicates the one or more resources corresponding to one or more active cells. In some examples, the channel information is determined based on the one or more resources.
[0169] In some examples, the channel information is transmitted after a reference signal is synchronized, the reference signal associated with the one or more resources.
[0170] In some examples, the indication component 845 is capable of, configured to, or operable to support a means for storing an indication of one or more QCL properties for a reference signal associated with the one or more resources.
[0171] In some examples, the configuration information indicates a report configuration identifier and a measurement resource identifier. In some examples, the report configuration identifier is from a set of report configuration identifiers associated with the active cell or the inactive SCell and the measurement resource identifier is associated with the report configuration identifier and is from a set of measurement resource identifiers associated with the active cell or the inactive SCell.
[0172] In some examples, the control component 850 is capable of, configured to, or operable to support a means for receiving an RRC reconfiguration message, where the channel information transmitted previous to completion of the activation of the inactive SCell is triggered based on the RRC reconfiguration message.
[0173] In some examples, the control component 850 is capable of, configured to, or operable to support a means for receiving a MAC-CE or DCI, where the channel information transmitted previous to completion of the activation of the inactive SCell is transmitted periodically, semi-persistently, or aperiodically based on the MAC-CE or the DCI.
[0174] FIG. 9 shows a diagram of a system 900 including a device 905 that supports channel information determination for inactive cells in accordance with one or more aspects of the present disclosure. The device 905 may be an example of or include components of a device 605, a device 705, or a UE 115 as described herein. The device 905 may communicate (e.g., wirelessly) with one or more other devices (e.g., network entities 105, UEs 115, or a combination thereof) . The device 905 may include components for bi-directional voice and data communications including components for transmitting and receiving communications, such as a communications manager 920, an input / output (I / O) controller, such as an I / O controller 910, a transceiver 915, one or more antennas 925, at least one memory 930, code 935, and at least one processor 940. These components may be in electronic communication or otherwise coupled (e.g., operatively, communicatively, functionally, electronically, electrically) via one or more buses (e.g., a bus 945) .
[0175] The I / O controller 910 may manage input and output signals for the device 905. The I / O controller 910 may also manage peripherals not integrated into the device 905. In some cases, the I / O controller 910 may represent a physical connection or port to an external peripheral. In some cases, the I / O controller 910 may utilize an operating system such as or another known operating system. Additionally, or alternatively, the I / O controller 910 may represent or interact with a modem, a keyboard, a mouse, a touchscreen, or a similar device. In some cases, the I / O controller 910 may be implemented as part of one or more processors, such as the at least one processor 940. In some cases, a user may interact with the device 905 via the I / O controller 910 or via hardware components controlled by the I / O controller 910.
[0176] In some cases, the device 905 may include a single antenna. However, in some other cases, the device 905 may have more than one antenna, which may be capable of concurrently transmitting or receiving multiple wireless transmissions. The transceiver 915 may communicate bi-directionally via the one or more antennas 925 using wired or wireless links as described herein. For example, the transceiver 915 may represent a wireless transceiver and may communicate bi-directionally with another wireless transceiver. The transceiver 915 may also include a modem to modulate the packets, to provide the modulated packets to one or more antennas 925 for transmission, and to demodulate packets received from the one or more antennas 925. The transceiver 915, or the transceiver 915 and one or more antennas 925, may be an example of a transmitter 615, a transmitter 715, a receiver 610, a receiver 710, or any combination thereof or component thereof, as described herein.
[0177] The at least one memory 930 may include random access memory (RAM) and read-only memory (ROM) . The at least one memory 930 may store computer-readable, computer-executable, or processor-executable code, such as the code 935. The code 935 may include instructions that, when executed by the at least one processor 940, cause the device 905 to perform various functions described herein. The code 935 may be stored in a non-transitory computer-readable medium such as system memory or another type of memory. In some cases, the code 935 may not be directly executable by the at least one processor 940 but may cause a computer (e.g., when compiled and executed) to perform functions described herein. In some cases, the at least one memory 930 may include, among other things, a basic I / O system (BIOS) which may control basic hardware or software operation such as the interaction with peripheral components or devices.
[0178] The at least one processor 940 may include one or more intelligent hardware devices (e.g., one or more general-purpose processors, one or more DSPs, one or more CPUs, one or more graphics processing units (GPUs) , one or more neural processing units (NPUs) (also referred to as neural network processors or deep learning processors (DLPs) ) , one or more microcontrollers, one or more ASICs, one or more FPGAs, one or more programmable logic devices, discrete gate or transistor logic, one or more discrete hardware components, or any combination thereof) . In some cases, the at least one processor 940 may be configured to operate a memory array using a memory controller. In some other cases, a memory controller may be integrated into the at least one processor 940. The at least one processor 940 may be configured to execute computer-readable instructions stored in a memory (e.g., the at least one memory 930) to cause the device 905 to perform various functions (e.g., functions or tasks supporting channel information determination for inactive cells) . For example, the device 905 or a component of the device 905 may include at least one processor 940 and at least one memory 930 coupled with or to the at least one processor 940, the at least one processor 940 and the at least one memory 930 configured to perform various functions described herein.
[0179] In some examples, the at least one processor 940 may include multiple processors and the at least one memory 930 may include multiple memories. One or more of the multiple processors may be coupled with one or more of the multiple memories, which may, individually or collectively, be configured to perform various functions described herein. In some examples, the at least one processor 940 may be a component of a processing system, which may refer to a system (such as a series) of machines, circuitry (including, for example, one or both of processor circuitry (which may include the at least one processor 940) and memory circuitry (which may include the at least one memory 930) ) , or components, that receives or obtains inputs and processes the inputs to produce, generate, or obtain a set of outputs. The processing system may be configured to perform one or more of the functions described herein. For example, the at least one processor 940 or a processing system including the at least one processor 940 may be configured to, configurable to, or operable to cause the device 905 to perform one or more of the functions described herein. Further, as described herein, being “configured to, ” being “configurable to, ” and being “operable to” may be used interchangeably and may be associated with a capability, when executing code 935 (e.g., processor-executable code) stored in the at least one memory 930 or otherwise, to perform one or more of the functions described herein.
[0180] For example, the communications manager 920 is capable of, configured to, or operable to support a means for receiving, from an active cell, configuration information indicating one or more resources for measurement by the UE. The communications manager 920 is capable of, configured to, or operable to support a means for transmitting, to the active cell, channel information associated with an inactive SCell, where the channel information is determined by the UE based on the measurement of the one or more resources and is transmitted previous to completion of an activation of the inactive SCell for carrier aggregation with the active cell.
[0181] By including or configuring the communications manager 920 in accordance with examples as described herein, the device 905 may support techniques for improved communication reliability, reduced latency, reduced power consumption, more efficient utilization of communication resources, improved coordination between devices, longer battery life, or improved utilization of processing capability.
[0182] In some examples, the communications manager 920 may be configured to perform various operations (e.g., receiving, monitoring, transmitting) using or otherwise in cooperation with the transceiver 915, the one or more antennas 925, or any combination thereof. For example, the communications manager 920 may be configured to receive or transmit messages or other signaling as described herein via the transceiver 915. Although the communications manager 920 is illustrated as a separate component, in some examples, one or more functions described with reference to the communications manager 920 may be supported by or performed by the at least one processor 940, the at least one memory 930, the code 935, or any combination thereof. For example, the code 935 may include instructions executable by the at least one processor 940 to cause the device 905 to perform various aspects of channel information determination for inactive cells as described herein, or the at least one processor 940 and the at least one memory 930 may be otherwise configured to, individually or collectively, perform or support such operations.
[0183] FIG. 10 shows a block diagram 1000 of a device 1005 that supports channel information determination for inactive cells in accordance with one or more aspects of the present disclosure. The device 1005 may be an example of aspects of a network entity 105 as described herein. The device 1005 may include a receiver 1010, a transmitter 1015, and a communications manager 1020. The device 1005, or one or more components of the device 1005 (e.g., the receiver 1010, the transmitter 1015, the communications manager 1020) , may include at least one processor, which may be coupled with at least one memory, to, individually or collectively, support or enable the described techniques. Each of these components may be in communication with one another (e.g., via one or more buses) .
[0184] The receiver 1010 may provide a means for obtaining (e.g., receiving, determining, identifying) information such as user data, control information, or any combination thereof (e.g., I / Q samples, symbols, packets, protocol data units, service data units) associated with various channels (e.g., control channels, data channels, information channels, channels associated with a protocol stack) . Information may be passed on to other components of the device 1005. In some examples, the receiver 1010 may support obtaining information by receiving signals via one or more antennas. Additionally, or alternatively, the receiver 1010 may support obtaining information by receiving signals via one or more wired (e.g., electrical, fiber optic) interfaces, wireless interfaces, or any combination thereof.
[0185] The transmitter 1015 may provide a means for outputting (e.g., transmitting, providing, conveying, sending) information generated by other components of the device 1005. For example, the transmitter 1015 may output information such as user data, control information, or any combination thereof (e.g., I / Q samples, symbols, packets, protocol data units, service data units) associated with various channels (e.g., control channels, data channels, information channels, channels associated with a protocol stack) . In some examples, the transmitter 1015 may support outputting information by transmitting signals via one or more antennas. Additionally, or alternatively, the transmitter 1015 may support outputting information by transmitting signals via one or more wired (e.g., electrical, fiber optic) interfaces, wireless interfaces, or any combination thereof. In some examples, the transmitter 1015 and the receiver 1010 may be co-located in a transceiver, which may include or be coupled with a modem.
[0186] The communications manager 1020, the receiver 1010, the transmitter 1015, or various combinations or components thereof may be examples of means for performing various aspects of channel information determination for inactive cells as described herein. For example, the communications manager 1020, the receiver 1010, the transmitter 1015, or various combinations or components thereof may be capable of performing one or more of the functions described herein.
[0187] In some examples, the communications manager 1020, the receiver 1010, the transmitter 1015, or various combinations or components thereof may be implemented in hardware (e.g., in communications management circuitry) . The hardware may include at least one of a processor, a DSP, a CPU, an ASIC, an FPGA or other programmable logic device, a microcontroller, discrete gate or transistor logic, discrete hardware components, or any combination thereof configured as or otherwise supporting, individually or collectively, a means for performing the functions described in the present disclosure. In some examples, at least one processor and at least one memory coupled with the at least one processor may be configured to perform one or more of the functions described herein (e.g., by one or more processors, individually or collectively, executing instructions stored in the at least one memory) .
[0188] Additionally, or alternatively, the communications manager 1020, the receiver 1010, the transmitter 1015, or various combinations or components thereof may be implemented in code (e.g., as communications management software or firmware) executed by at least one processor (e.g., referred to as a processor-executable code) . If implemented in code executed by at least one processor, the functions of the communications manager 1020, the receiver 1010, the transmitter 1015, or various combinations or components thereof may be performed by a general-purpose processor, a DSP, a CPU, an ASIC, an FPGA, a microcontroller, or any combination of these or other programmable logic devices (e.g., configured as or otherwise supporting, individually or collectively, a means for performing the functions described in the present disclosure) .
[0189] In some examples, the communications manager 1020 may be configured to perform various operations (e.g., receiving, obtaining, monitoring, outputting, transmitting) using or otherwise in cooperation with the receiver 1010, the transmitter 1015, or both. For example, the communications manager 1020 may receive information from the receiver 1010, send information to the transmitter 1015, or be integrated in combination with the receiver 1010, the transmitter 1015, or both to obtain information, output information, or perform various other operations as described herein.
[0190] For example, the communications manager 1020 is capable of, configured to, or operable to support a means for outputting, via an active cell to a UE, configuration information indicating one or more resources for measurement by the UE. The communications manager 1020 is capable of, configured to, or operable to support a means for obtaining, from the UE via the active cell, channel information associated with an inactive SCell, where the channel information is based on the measurement of the one or more resources and is obtained previous to completion of an activation of the inactive SCell for carrier aggregation with the active cell.
[0191] By including or configuring the communications manager 1020 in accordance with examples as described herein, the device 1005 (e.g., at least one processor controlling or otherwise coupled with the receiver 1010, the transmitter 1015, the communications manager 1020, or a combination thereof) may support techniques for reduced processing, reduced power consumption, or more efficient utilization of communication resources.
[0192] FIG. 11 shows a block diagram 1100 of a device 1105 that supports channel information determination for inactive cells in accordance with one or more aspects of the present disclosure. The device 1105 may be an example of aspects of a device 1005 or a network entity 105 as described herein. The device 1105 may include a receiver 1110, a transmitter 1115, and a communications manager 1120. The device 1105, or one or more components of the device 1105 (e.g., the receiver 1110, the transmitter 1115, the communications manager 1120) , may include at least one processor, which may be coupled with at least one memory, to support the described techniques. Each of these components may be in communication with one another (e.g., via one or more buses) .
[0193] The receiver 1110 may provide a means for obtaining (e.g., receiving, determining, identifying) information such as user data, control information, or any combination thereof (e.g., I / Q samples, symbols, packets, protocol data units, service data units) associated with various channels (e.g., control channels, data channels, information channels, channels associated with a protocol stack) . Information may be passed on to other components of the device 1105. In some examples, the receiver 1110 may support obtaining information by receiving signals via one or more antennas. Additionally, or alternatively, the receiver 1110 may support obtaining information by receiving signals via one or more wired (e.g., electrical, fiber optic) interfaces, wireless interfaces, or any combination thereof.
[0194] The transmitter 1115 may provide a means for outputting (e.g., transmitting, providing, conveying, sending) information generated by other components of the device 1105. For example, the transmitter 1115 may output information such as user data, control information, or any combination thereof (e.g., I / Q samples, symbols, packets, protocol data units, service data units) associated with various channels (e.g., control channels, data channels, information channels, channels associated with a protocol stack) . In some examples, the transmitter 1115 may support outputting information by transmitting signals via one or more antennas. Additionally, or alternatively, the transmitter 1115 may support outputting information by transmitting signals via one or more wired (e.g., electrical, fiber optic) interfaces, wireless interfaces, or any combination thereof. In some examples, the transmitter 1115 and the receiver 1110 may be co-located in a transceiver, which may include or be coupled with a modem.
[0195] The device 1105, or various components thereof, may be an example of means for performing various aspects of channel information determination for inactive cells as described herein. For example, the communications manager 1120 may include a configuration manager 1125 a channel manager 1130, or any combination thereof. The communications manager 1120 may be an example of aspects of a communications manager 1020 as described herein. In some examples, the communications manager 1120, or various components thereof, may be configured to perform various operations (e.g., receiving, obtaining, monitoring, outputting, transmitting) using or otherwise in cooperation with the receiver 1110, the transmitter 1115, or both. For example, the communications manager 1120 may receive information from the receiver 1110, send information to the transmitter 1115, or be integrated in combination with the receiver 1110, the transmitter 1115, or both to obtain information, output information, or perform various other operations as described herein.
[0196] The configuration manager 1125 is capable of, configured to, or operable to support a means for outputting, via an active cell to a UE, configuration information indicating one or more resources for measurement by the UE. The channel manager 1130 is capable of, configured to, or operable to support a means for obtaining, from the UE via the active cell, channel information associated with an inactive SCell, where the channel information is based on the measurement of the one or more resources and is obtained previous to completion of an activation of the inactive SCell for carrier aggregation with the active cell.
[0197] FIG. 12 shows a block diagram 1200 of a communications manager 1220 that supports channel information determination for inactive cells in accordance with one or more aspects of the present disclosure. The communications manager 1220 may be an example of aspects of a communications manager 1020, a communications manager 1120, or both, as described herein. The communications manager 1220, or various components thereof, may be an example of means for performing various aspects of channel information determination for inactive cells as described herein. For example, the communications manager 1220 may include a configuration manager 1225, a channel manager 1230, a capability manager 1235, an activation manager 1240, a control manager 1245, or any combination thereof. Each of these components, or components or subcomponents thereof (e.g., one or more processors, one or more memories) , may communicate, directly or indirectly, with one another (e.g., via one or more buses) . The communications may include communications within a protocol layer of a protocol stack, communications associated with a logical channel of a protocol stack (e.g., between protocol layers of a protocol stack, within a device, component, or virtualized component associated with a network entity 105, between devices, components, or virtualized components associated with a network entity 105) , or any combination thereof.
[0198] The configuration manager 1225 is capable of, configured to, or operable to support a means for outputting, via an active cell to a UE, configuration information indicating one or more resources for measurement by the UE. The channel manager 1230 is capable of, configured to, or operable to support a means for obtaining, from the UE via the active cell, channel information associated with an inactive SCell, where the channel information is based on the measurement of the one or more resources and is obtained previous to completion of an activation of the inactive SCell for carrier aggregation with the active cell.
[0199] In some examples, the capability manager 1235 is capable of, configured to, or operable to support a means for obtaining, from the UE via the active cell, capability information indicating a capability of the UE to transmit the channel information associated with the inactive SCell previous to completion of the activation of the inactive SCell for carrier aggregation with the active cell.
[0200] In some examples, the activation manager 1240 is capable of, configured to, or operable to support a means for outputting, to the UE via the active cell, an activation command to activate the inactive SCell for carrier aggregation with the active cell, where the configuration information is output and the channel information is obtained previous to reception of the activation command.
[0201] In some examples, the activation manager 1240 is capable of, configured to, or operable to support a means for outputting, to the UE via the active cell, an activation command to activate the inactive SCell for carrier aggregation with the active cell, where the configuration information is output or the channel information is obtained subsequent to reception of the activation command and during an activation delay that precedes the completion of the activation of the inactive SCell.
[0202] In some examples, the activation command is output separate from the configuration information. In some examples, the configuration information is output with the activation command.
[0203] In some examples, the configuration information indicates the one or more resources corresponding to the inactive SCell or multiple inactive SCells, or indicates the one or more resources corresponding to one or more active cells.
[0204] In some examples, the channel information is obtained after a reference signal is synchronized, the reference signal associated with the one or more resources.
[0205] In some examples, the configuration information indicates a report configuration identifier and a measurement resource identifier. In some examples, the report configuration identifier is from a set of report configuration identifiers associated with the active cell or the inactive SCell and the measurement resource identifier is associated with the report configuration identifier and is from a set of measurement resource identifiers associated with the active cell or the inactive SCell.
[0206] In some examples, the control manager 1245 is capable of, configured to, or operable to support a means for outputting an RRC reconfiguration message, where the channel information obtained previous to completion of the activation of the inactive SCell is triggered based on the RRC reconfiguration message.
[0207] In some examples, the control manager 1245 is capable of, configured to, or operable to support a means for outputting a MAC-CE or DCI, where the channel information transmitted previous to completion of the activation of the inactive SCell is obtained periodically, semi-persistently, or aperiodically based on the MAC-CE or the DCI.
[0208] FIG. 13 shows a diagram of a system 1300 including a device 1305 that supports channel information determination for inactive cells in accordance with one or more aspects of the present disclosure. The device 1305 may be an example of or include components of a device 1005, a device 1105, or a network entity 105 as described herein. The device 1305 may communicate with other network devices or network equipment such as one or more of the network entities 105, UEs 115, or any combination thereof. The communications may include communications over one or more wired interfaces, over one or more wireless interfaces, or any combination thereof. The device 1305 may include components that support outputting and obtaining communications, such as a communications manager 1320, a transceiver 1310, one or more antennas 1315, at least one memory 1325, code 1330, and at least one processor 1335. These components may be in electronic communication or otherwise coupled (e.g., operatively, communicatively, functionally, electronically, electrically) via one or more buses (e.g., a bus 1340) .
[0209] The transceiver 1310 may support bi-directional communications via wired links, wireless links, or both as described herein. In some examples, the transceiver 1310 may include a wired transceiver and may communicate bi-directionally with another wired transceiver. Additionally, or alternatively, in some examples, the transceiver 1310 may include a wireless transceiver and may communicate bi-directionally with another wireless transceiver. In some examples, the device 1305 may include one or more antennas 1315, which may be capable of transmitting or receiving wireless transmissions (e.g., concurrently) . The transceiver 1310 may also include a modem to modulate signals, to provide the modulated signals for transmission (e.g., by one or more antennas 1315, by a wired transmitter) , to receive modulated signals (e.g., from one or more antennas 1315, from a wired receiver) , and to demodulate signals. In some implementations, the transceiver 1310 may include one or more interfaces, such as one or more interfaces coupled with the one or more antennas 1315 that are configured to support various receiving or obtaining operations, or one or more interfaces coupled with the one or more antennas 1315 that are configured to support various transmitting or outputting operations, or a combination thereof. In some implementations, the transceiver 1310 may include or be configured for coupling with one or more processors or one or more memory components that are operable to perform or support operations based on received or obtained information or signals, or to generate information or other signals for transmission or other outputting, or any combination thereof. In some implementations, the transceiver 1310, or the transceiver 1310 and the one or more antennas 1315, or the transceiver 1310 and the one or more antennas 1315 and one or more processors or one or more memory components (e.g., the at least one processor 1335, the at least one memory 1325, or both) , may be included in a chip or chip assembly that is installed in the device 1305. In some examples, the transceiver 1310 may be operable to support communications via one or more communications links (e.g., communication link (s) 125, backhaul communication link (s) 120, a midhaul communication link 162, a fronthaul communication link 168) .
[0210] The at least one memory 1325 may include RAM, ROM, or any combination thereof. The at least one memory 1325 may store computer-readable, computer-executable, or processor-executable code, such as the code 1330. The code 1330 may include instructions that, when executed by one or more of the at least one processor 1335, cause the device 1305 to perform various functions described herein. The code 1330 may be stored in a non-transitory computer-readable medium such as system memory or another type of memory. In some cases, the code 1330 may not be directly executable by a processor of the at least one processor 1335 but may cause a computer (e.g., when compiled and executed) to perform functions described herein. In some cases, the at least one memory 1325 may include, among other things, a BIOS which may control basic hardware or software operation such as the interaction with peripheral components or devices. In some examples, the at least one processor 1335 may include multiple processors and the at least one memory 1325 may include multiple memories. One or more of the multiple processors may be coupled with one or more of the multiple memories which may, individually or collectively, be configured to perform various functions herein (for example, as part of a processing system) .
[0211] The at least one processor 1335 may include one or more intelligent hardware devices (e.g., one or more general-purpose processors, one or more DSPs, one or more CPUs, one or more graphics processing units (GPUs) , one or more neural processing units (NPUs) (also referred to as neural network processors or deep learning processors (DLPs) ) , one or more microcontrollers, one or more ASICs, one or more FPGAs, one or more programmable logic devices, discrete gate or transistor logic, one or more discrete hardware components, or any combination thereof) . In some cases, the at least one processor 1335 may be configured to operate a memory array using a memory controller. In some other cases, a memory controller may be integrated into one or more of the at least one processor 1335. The at least one processor 1335 may be configured to execute computer-readable instructions stored in a memory (e.g., one or more of the at least one memory 1325) to cause the device 1305 to perform various functions (e.g., functions or tasks supporting channel information determination for inactive cells) . For example, the device 1305 or a component of the device 1305 may include at least one processor 1335 and at least one memory 1325 coupled with one or more of the at least one processor 1335, the at least one processor 1335 and the at least one memory 1325 configured to perform various functions described herein. The at least one processor 1335 may be an example of a cloud-computing platform (e.g., one or more physical nodes and supporting software such as operating systems, virtual machines, or container instances) that may host the functions (e.g., by executing code 1330) to perform the functions of the device 1305. The at least one processor 1335 may be any one or more suitable processors capable of executing scripts or instructions of one or more software programs stored in the device 1305 (such as within one or more of the at least one memory 1325) .
[0212] In some examples, the at least one processor 1335 may include multiple processors and the at least one memory 1325 may include multiple memories. One or more of the multiple processors may be coupled with one or more of the multiple memories, which may, individually or collectively, be configured to perform various functions herein. In some examples, the at least one processor 1335 may be a component of a processing system, which may refer to a system (such as a series) of machines, circuitry (including, for example, one or both of processor circuitry (which may include the at least one processor 1335) and memory circuitry (which may include the at least one memory 1325) ) , or components, that receives or obtains inputs and processes the inputs to produce, generate, or obtain a set of outputs. The processing system may be configured to perform one or more of the functions described herein. For example, the at least one processor 1335 or a processing system including the at least one processor 1335 may be configured to, configurable to, or operable to cause the device 1305 to perform one or more of the functions described herein. Further, as described herein, being “configured to, ” being “configurable to, ” and being “operable to” may be used interchangeably and may be associated with a capability, when executing code stored in the at least one memory 1325 or otherwise, to perform one or more of the functions described herein.
[0213] In some examples, a bus 1340 may support communications of (e.g., within) a protocol layer of a protocol stack. In some examples, a bus 1340 may support communications associated with a logical channel of a protocol stack (e.g., between protocol layers of a protocol stack) , which may include communications performed within a component of the device 1305, or between different components of the device 1305 that may be co-located or located in different locations (e.g., where the device 1305 may refer to a system in which one or more of the communications manager 1320, the transceiver 1310, the at least one memory 1325, the code 1330, and the at least one processor 1335 may be located in one of the different components or divided between different components) .
[0214] In some examples, the communications manager 1320 may manage aspects of communications with a core network 130 (e.g., via one or more wired or wireless backhaul links) . For example, the communications manager 1320 may manage the transfer of data communications for client devices, such as one or more UEs 115. In some examples, the communications manager 1320 may manage communications with one or more other network entities 105 and may include a controller or scheduler for controlling communications with UEs 115 (e.g., in cooperation with the one or more other network devices) . In some examples, the communications manager 1320 may support an X2 interface within an LTE / LTE-A wireless communications network technology to provide communication between network entities 105.
[0215] For example, the communications manager 1320 is capable of, configured to, or operable to support a means for outputting, via an active cell to a UE, configuration information indicating one or more resources for measurement by the UE. The communications manager 1320 is capable of, configured to, or operable to support a means for obtaining, from the UE via the active cell, channel information associated with an inactive SCell, where the channel information is based on the measurement of the one or more resources and is obtained previous to completion of an activation of the inactive SCell for carrier aggregation with the active cell.
[0216] By including or configuring the communications manager 1320 in accordance with examples as described herein, the device 1305 may support techniques for improved communication reliability, reduced latency, reduced power consumption, more efficient utilization of communication resources, improved coordination between devices, longer battery life, or improved utilization of processing capability.
[0217] In some examples, the communications manager 1320 may be configured to perform various operations (e.g., receiving, obtaining, monitoring, outputting, transmitting) using or otherwise in cooperation with the transceiver 1310, the one or more antennas 1315 (e.g., where applicable) , or any combination thereof. For example, the communications manager 1320 may be configured to receive or transmit messages or other signaling as described herein via the transceiver 1310. Although the communications manager 1320 is illustrated as a separate component, in some examples, one or more functions described with reference to the communications manager 1320 may be supported by or performed by the transceiver 1310, one or more of the at least one processor 1335, one or more of the at least one memory 1325, the code 1330, or any combination thereof (for example, by a processing system including at least a portion of the at least one processor 1335, the at least one memory 1325, the code 1330, or any combination thereof) . For example, the code 1330 may include instructions executable by one or more of the at least one processor 1335 to cause the device 1305 to perform various aspects of channel information determination for inactive cells as described herein, or the at least one processor 1335 and the at least one memory 1325 may be otherwise configured to, individually or collectively, perform or support such operations.
[0218] FIG. 14 shows a flowchart illustrating a method 1400 that supports channel information determination for inactive cells in accordance with one or more aspects of the present disclosure. The operations of the method 1400 may be implemented by a UE or its components as described herein. For example, the operations of the method 1400 may be performed by a UE 115 as described with reference to FIGs. 1 through 9. In some examples, a UE may execute a set of instructions to control the functional elements of the UE to perform the described functions. Additionally, or alternatively, the UE may perform aspects of the described functions using special-purpose hardware.
[0219] At 1405, the method may include receiving, from an active cell, configuration information indicating one or more resources for measurement by the UE. The operations of 1405 may be performed in accordance with examples as disclosed herein. In some examples, aspects of the operations of 1405 may be performed by a configuration component 825 as described with reference to FIG. 8. Additionally, or alternatively, means for performing 1405 may, but not necessarily, include, for example, antenna 925, transceiver 915, I / O controller 910, communications manager 920, memory 930 (including code 935) , processor 940, and / or bus 945.
[0220] At 1410, the method may include transmitting, to the active cell, channel information associated with an inactive SCell, where the channel information is determined by the UE based on the measurement of the one or more resources and is transmitted previous to completion of an activation of the inactive SCell for carrier aggregation with the active cell. For instance, the method may include transmitting the channel information associated with the inactive SCell to the active cell, where the transmission may be initiated prior to the activation of the inactive SCell being completed. The operations of 1410 may be performed in accordance with examples as disclosed herein. In some examples, aspects of the operations of 1410 may be performed by a channel component 830 as described with reference to FIG. 8. Additionally, or alternatively, means for performing 1410 may, but not necessarily, include, for example, antenna 925, transceiver 915, I / O controller 910, communications manager 920, memory 930 (including code 935) , processor 940, and / or bus 945.
[0221] FIG. 15 shows a flowchart illustrating a method 1500 that supports channel information determination for inactive cells in accordance with one or more aspects of the present disclosure. The operations of the method 1500 may be implemented by a UE or its components as described herein. For example, the operations of the method 1500 may be performed by a UE 115 as described with reference to FIGs. 1 through 9. In some examples, a UE may execute a set of instructions to control the functional elements of the UE to perform the described functions. Additionally, or alternatively, the UE may perform aspects of the described functions using special-purpose hardware.
[0222] At 1505, the method may include transmitting, to an active cell, capability information indicating a capability of a UE to transmit the channel information associated with an inactive SCell previous to completion of an activation of the inactive SCell for carrier aggregation with the active cell. The operations of 1505 may be performed in accordance with examples as disclosed herein. In some examples, aspects of the operations of 1505 may be performed by a capability component 835 as described with reference to FIG. 8. Additionally, or alternatively, means for performing 1505 may, but not necessarily, include, for example, antenna 925, transceiver 915, I / O controller 910, communications manager 920, memory 930 (including code 935) , processor 940, and / or bus 945.
[0223] At 1510, the method may include receiving, from the active cell, configuration information indicating one or more resources for measurement by the UE. The operations of 1510 may be performed in accordance with examples as disclosed herein. In some examples, aspects of the operations of 1510 may be performed by a configuration component 825 as described with reference to FIG. 8. Additionally, or alternatively, means for performing 1510 may, but not necessarily, include, for example, antenna 925, transceiver 915, I / O controller 910, communications manager 920, memory 930 (including code 935) , processor 940, and / or bus 945.
[0224] At 1515, the method may include transmitting, to the active cell, channel information associated with the inactive SCell, where the channel information is determined by the UE based on the measurement of the one or more resources and is transmitted previous to completion of an activation of the inactive SCell for carrier aggregation with the active cell. The operations of 1515 may be performed in accordance with examples as disclosed herein. In some examples, aspects of the operations of 1515 may be performed by a channel component 830 as described with reference to FIG. 8. Additionally, or alternatively, means for performing 1515 may, but not necessarily, include, for example, antenna 925, transceiver 915, I / O controller 910, communications manager 920, memory 930 (including code 935) , processor 940, and / or bus 945.
[0225] FIG. 16 shows a flowchart illustrating a method 1600 that supports channel information determination for inactive cells in accordance with one or more aspects of the present disclosure. The operations of the method 1600 may be implemented by a network entity or its components as described herein. For example, the operations of the method 1600 may be performed by a network entity as described with reference to FIGs. 1 through 5 and 10 through 13. In some examples, a network entity may execute a set of instructions to control the functional elements of the network entity to perform the described functions. Additionally, or alternatively, the network entity may perform aspects of the described functions using special-purpose hardware.
[0226] At 1605, the method may include outputting, via an active cell to a UE, configuration information indicating one or more resources for measurement by the UE. The operations of 1605 may be performed in accordance with examples as disclosed herein. In some examples, aspects of the operations of 1605 may be performed by a configuration manager 1225 as described with reference to FIG. 12. Additionally, or alternatively, means for performing 1605 may, but not necessarily, include, for example, antenna 1315, transceiver 1310, communications manager 1320, memory 1325 (including code 1330) , processor 1335, and / or bus 1340.
[0227] At 1610, the method may include obtaining, from the UE via the active cell, channel information associated with an inactive SCell, where the channel information is based on the measurement of the one or more resources and is obtained previous to completion of an activation of the inactive SCell for carrier aggregation with the active cell. The operations of 1610 may be performed in accordance with examples as disclosed herein. In some examples, aspects of the operations of 1610 may be performed by a channel manager 1230 as described with reference to FIG. 12. Additionally, or alternatively, means for performing 1610 may, but not necessarily, include, for example, antenna 1315, transceiver 1310, communications manager 1320, memory 1325 (including code 1330) , processor 1335, and / or bus 1340.
[0228] FIG. 17 shows a flowchart illustrating a method 1700 that supports channel information determination for inactive cells in accordance with one or more aspects of the present disclosure. The operations of the method 1700 may be implemented by a network entity or its components as described herein. For example, the operations of the method 1700 may be performed by a network entity as described with reference to FIGs. 1 through 5 and 10 through 13. In some examples, a network entity may execute a set of instructions to control the functional elements of the network entity to perform the described functions. Additionally, or alternatively, the network entity may perform aspects of the described functions using special-purpose hardware.
[0229] At 1705, the method may include obtaining, from a UE via an active cell, capability information indicating a capability of the UE to transmit channel information associated with an inactive SCell previous to completion of an activation of the inactive SCell for carrier aggregation with the active cell. The operations of 1705 may be performed in accordance with examples as disclosed herein. In some examples, aspects of the operations of 1705 may be performed by a capability manager 1235 as described with reference to FIG. 12. Additionally, or alternatively, means for performing 1705 may, but not necessarily, include, for example, antenna 1315, transceiver 1310, communications manager 1320, memory 1325 (including code 1330) , processor 1335, and / or bus 1340.
[0230] At 1710, the method may include outputting, via the active cell to the UE, configuration information indicating one or more resources for measurement by the UE. The operations of 1710 may be performed in accordance with examples as disclosed herein. In some examples, aspects of the operations of 1710 may be performed by a configuration manager 1225 as described with reference to FIG. 12. Additionally, or alternatively, means for performing 1710 may, but not necessarily, include, for example, antenna 1315, transceiver 1310, communications manager 1320, memory 1325 (including code 1330) , processor 1335, and / or bus 1340.
[0231] At 1715, the method may include obtaining, from the UE via the active cell, channel information associated with the inactive SCell, where the channel information is based on the measurement of the one or more resources and is obtained previous to completion of the activation of the inactive SCell for carrier aggregation with the active cell. The operations of 1715 may be performed in accordance with examples as disclosed herein. In some examples, aspects of the operations of 1715 may be performed by a channel manager 1230 as described with reference to FIG. 12. Additionally, or alternatively, means for performing 1715 may, but not necessarily, include, for example, antenna 1315, transceiver 1310, communications manager 1320, memory 1325 (including code 1330) , processor 1335, and / or bus 1340.
[0232] The following provides an overview of aspects of the present disclosure:
[0233] Aspect 1: A method for wireless communications at a UE, comprising: receiving, from an active cell, configuration information indicating one or more resources for measurement by the UE; and transmitting, to the active cell, channel information associated with an inactive SCell, wherein the channel information is determined by the UE based at least in part on the measurement of the one or more resources and is transmitted previous to completion of an activation of the inactive SCell for carrier aggregation with the active cell.
[0234] Aspect 2: The method of aspect 1, further comprising: transmitting, to the active cell, capability information indicating a capability of the UE to transmit the channel information associated with the inactive SCell previous to completion of the activation of the inactive SCell for carrier aggregation with the active cell.
[0235] Aspect 3: The method of any of aspects 1 through 2, further comprising: receiving, from the active cell, an activation command to activate the inactive SCell for carrier aggregation with the active cell, wherein the configuration information is received and the channel information is transmitted previous to reception of the activation command.
[0236] Aspect 4: The method of any of aspects 1 through 2, further comprising: receiving, from the active cell, an activation command to activate the inactive SCell for carrier aggregation with the active cell, wherein the configuration information is received or the channel information is transmitted subsequent to reception of the activation command and during an activation delay that precedes the completion of the activation of the inactive SCell.
[0237] Aspect 5: The method of aspect 4, wherein the activation command is received separate from the configuration information, or the configuration information is received with the activation command.
[0238] Aspect 6: The method of any of aspects 1 through 5, wherein the configuration information indicates the one or more resources corresponding to the inactive SCell or multiple inactive SCells, or indicates the one or more resources corresponding to one or more active cells, and the channel information is determined based at least in part on the one or more resources.
[0239] Aspect 7: The method of any of aspects 1 through 6, wherein the channel information is transmitted after a reference signal is synchronized, the reference signal associated with the one or more resources.
[0240] Aspect 8: The method of any of aspects 1 through 7, further comprising: storing an indication of one or more QCL properties for a reference signal associated with the one or more resources.
[0241] Aspect 9: The method of any of aspects 1 through 8, wherein the configuration information indicates a report configuration identifier and a measurement resource identifier, the report configuration identifier is from a set of report configuration identifiers associated with the active cell or the inactive SCell and the measurement resource identifier is associated with the report configuration identifier and is from a set of measurement resource identifiers associated with the active cell or the inactive SCell.
[0242] Aspect 10: The method of any of aspects 1 through 9, further comprising: receiving an RRC reconfiguration message, wherein the channel information transmitted previous to completion of the activation of the inactive SCell is triggered based at least in part on the RRC reconfiguration message.
[0243] Aspect 11: The method of any of aspects 1 through 10, further comprising: receiving a MAC-CE or DCI, wherein the channel information transmitted previous to completion of the activation of the inactive SCell is transmitted periodically, semi-persistently, or aperiodically based at least in part on the MAC-CE or the DCI.
[0244] Aspect 12: A method for wireless communications at a network entity, comprising: outputting, via an active cell to a UE, configuration information indicating one or more resources for measurement by the UE; and obtaining, from the UE via the active cell, channel information associated with an inactive SCell, wherein the channel information is based at least in part on the measurement of the one or more resources and is obtained previous to completion of an activation of the inactive SCell for carrier aggregation with the active cell.
[0245] Aspect 13: The method of aspect 12, further comprising: obtaining, from the UE via the active cell, capability information indicating a capability of the UE to transmit the channel information associated with the inactive SCell previous to completion of the activation of the inactive SCell for carrier aggregation with the active cell.
[0246] Aspect 14: The method of any of aspects 12 through 13, further comprising: outputting, to the UE via the active cell, an activation command to activate the inactive SCell for carrier aggregation with the active cell, wherein the configuration information is output and the channel information is obtained previous to reception of the activation command.
[0247] Aspect 15: The method of any of aspects 12 through 13, further comprising: outputting, to the UE via the active cell, an activation command to activate the inactive SCell for carrier aggregation with the active cell, wherein the configuration information is output or the channel information is obtained subsequent to reception of the activation command and during an activation delay that precedes the completion of the activation of the inactive SCell.
[0248] Aspect 16: The method of aspect 15, wherein the activation command is output separate from the configuration information, or the configuration information is output with the activation command.
[0249] Aspect 17: The method of any of aspects 12 through 16, wherein the configuration information indicates the one or more resources corresponding to the inactive SCell or multiple inactive SCells, or indicates the one or more resources corresponding to one or more active cells.
[0250] Aspect 18: The method of any of aspects 12 through 17, wherein the channel information is obtained after a reference signal is synchronized, the reference signal associated with the one or more resources.
[0251] Aspect 19: The method of any of aspects 12 through 18, wherein the configuration information indicates a report configuration identifier and a measurement resource identifier, wherein the report configuration identifier is from a set of report configuration identifiers associated with the active cell or the inactive SCell and the measurement resource identifier is associated with the report configuration identifier and is from a set of measurement resource identifiers associated with the active cell or the inactive SCell.
[0252] Aspect 20: The method of any of aspects 12 through 19, further comprising: outputting an RRC reconfiguration message, wherein the channel information obtained previous to completion of the activation of the inactive SCell is triggered based at least in part on the RRC reconfiguration message.
[0253] Aspect 21: The method of any of aspects 12 through 20, further comprising: outputting a MAC-CE or DCI, wherein the channel information transmitted previous to completion of the activation of the inactive SCell is obtained periodically, semi-persistently, or aperiodically based at least in part on the MAC-CE or the DCI.
[0254] Aspect 22: A UE comprising one or more memories storing processor-executable code, a transceiver, and one or more processors coupled with the one or more memories and the transceiver, the one or more processors configured to perform a method of any of aspects 1 through 11.
[0255] Aspect 23: A UE comprising at least one means for performing a method of any of aspects 1 through 11.
[0256] Aspect 24: A non-transitory computer-readable medium storing code the code comprising instructions executable by one or more processors to perform a method of any of aspects 1 through 11.
[0257] Aspect 25: A network entity comprising one or more memories storing processor-executable code, and one or more processors coupled with the one or more memories and individually or collectively operable to execute the code to cause the network entity to perform a method of any of aspects 12 through 21.
[0258] Aspect 26: A network entity comprising at least one means for performing a method of any of aspects 12 through 21.
[0259] Aspect 27: A non-transitory computer-readable medium storing code the code comprising instructions executable by one or more processors to perform a method of any of aspects 12 through 21.
[0260] It should be noted that the methods described herein describe possible implementations. The operations and the steps may be rearranged or otherwise modified and other implementations are possible. Further, aspects from two or more of the methods may be combined.
[0261] Although aspects of an LTE, LTE-A, LTE-A Pro, or NR system may be described for purposes of example, and LTE, LTE-A, LTE-A Pro, or NR terminology may be used in much of the description, the techniques described herein are applicable beyond LTE, LTE-A, LTE-A Pro, or NR networks. For example, the described techniques may be applicable to various other wireless communications systems such as Ultra Mobile Broadband (UMB) , Institute of Electrical and Electronics Engineers (IEEE) 802.11 (Wi-Fi) , IEEE 802.16 (WiMAX) , IEEE 802.20, Flash-OFDM, as well as other systems and radio technologies not explicitly mentioned herein.
[0262] Information and signals described herein may be represented using any of a variety of different technologies and techniques. For example, data, instructions, commands, information, signals, bits, symbols, and chips that may be referenced throughout the description may be represented by voltages, currents, electromagnetic waves, magnetic fields or particles, optical fields or particles, or any combination thereof.
[0263] The various illustrative blocks and components described in connection with the disclosure herein may be implemented or performed using a general-purpose processor, a DSP, an ASIC, a CPU, a graphics processing unit (GPU) , a neural processing unit (NPU) , an FPGA or other programmable logic device, discrete gate or transistor logic, discrete hardware components, or any combination thereof designed to perform the functions described herein. A general-purpose processor may be a microprocessor but, in the alternative, the processor may be any processor, controller, microcontroller, or state machine. A processor may also be implemented as a combination of computing devices (e.g., a combination of a DSP and a microprocessor, multiple microprocessors, one or more microprocessors in conjunction with a DSP core, or any other such configuration) . Any functions or operations described herein as being capable of being performed by a processor may be performed by multiple processors that, individually or collectively, are capable of performing the described functions or operations.
[0264] The functions described herein may be implemented using hardware, software executed by a processor, firmware, or any combination thereof. If implemented using software executed by a processor, the functions may be stored as or transmitted using one or more instructions or code of a computer-readable medium. Other examples and implementations are within the scope of the disclosure and appended claims. For example, due to the nature of software, functions described herein may be implemented using software executed by a processor, hardware, firmware, hardwiring, or combinations of any of these. Features implementing functions may also be physically located at various positions, including being distributed such that portions of functions are implemented at different physical locations.
[0265] Computer-readable media includes both non-transitory computer storage media and communication media including any medium that facilitates transfer of a computer program from one location to another. A non-transitory storage medium may be any available medium that may be accessed by a general-purpose or special-purpose computer. By way of example, and not limitation, non-transitory computer-readable media may include RAM, ROM, electrically erasable programmable ROM (EEPROM) , flash memory, compact disk (CD) ROM or other optical disk storage, magnetic disk storage or other magnetic storage devices, or any other non-transitory medium that may be used to carry or store desired program code means in the form of instructions or data structures and that may be accessed by a general-purpose or special-purpose computer or a general-purpose or special-purpose processor. Also, any connection is properly termed a computer-readable medium. For example, if the software is transmitted from a website, server, or other remote source using a coaxial cable, fiber optic cable, twisted pair, digital subscriber line (DSL) , or wireless technologies such as infrared, radio, and microwave, then the coaxial cable, fiber optic cable, twisted pair, DSL, or wireless technologies such as infrared, radio, and microwave are included in the definition of computer-readable medium. Disk and disc, as used herein, include CD, laser disc, optical disc, digital versatile disc (DVD) , floppy disk, and Blu-ray disc. Disks may reproduce data magnetically, and discs may reproduce data optically using lasers. Combinations of the above are also included within the scope of computer-readable media. Any functions or operations described herein as being capable of being performed by a memory may be performed by multiple memories that, individually or collectively, are capable of performing the described functions or operations.
[0266] As used herein, including in the claims, “or” as used in a list of items (e.g., a list of items prefaced by a phrase such as “at least one of” or “one or more of” ) indicates an inclusive list such that, for example, a list of at least one of A, B, or C means A or B or C or AB or AC or BC or ABC (i.e., A and B and C) . Also, as used herein, the phrase “based on” shall not be construed as a reference to a closed set of conditions. For example, an example step that is described as “based on condition A” may be based on both a condition A and a condition B without departing from the scope of the present disclosure. In other words, as used herein, the phrase “based on” shall be construed in the same manner as the phrase “based at least in part on. ”
[0267] As used herein, including in the claims, the article “a” before a noun is open-ended and understood to refer to “at least one” of those nouns or “one or more” of those nouns. Thus, the terms “a, ” “at least one, ” “one or more, ” and “at least one of one or more” may be interchangeable. For example, if a claim recites “a component” that performs one or more functions, each of the individual functions may be performed by a single component or by any combination of multiple components. Thus, the term “a component” having characteristics or performing functions may refer to “at least one of one or more components” having a particular characteristic or performing a particular function. Subsequent reference to a component introduced with the article “a” using the terms “the” or “said” may refer to any or all of the one or more components. For example, a component introduced with the article “a” may be understood to mean “one or more components, ” and referring to “the component” subsequently in the claims may be understood to be equivalent to referring to “at least one of the one or more components. ” Similarly, subsequent reference to a component introduced as “one or more components” using the terms “the” or “said” may refer to any or all of the one or more components. For example, referring to “the one or more components” subsequently in the claims may be understood to be equivalent to referring to “at least one of the one or more components. ”
[0268] The term “determine” or “determining” encompasses a variety of actions and, therefore, “determining” can include calculating, computing, processing, deriving, investigating, looking up (such as via looking up in a table, a database, or another data structure) , ascertaining, and the like. Also, “determining” can include receiving (e.g., receiving information) , accessing (e.g., accessing data stored in memory) , and the like. Also, “determining” can include resolving, obtaining, selecting, choosing, establishing, and other such similar actions.
[0269] In the appended figures, similar components or features may have the same reference label. Further, various components of the same type may be distinguished by following the reference label by a dash and a second label that distinguishes among the similar components. If just the first reference label is used in the specification, the description is applicable to any one of the similar components having the same first reference label irrespective of the second reference label or other subsequent reference label.
[0270] The description set forth herein, in connection with the appended drawings, describes example configurations and does not represent all the examples that may be implemented or that are within the scope of the claims. The term “example” used herein means “serving as an example, instance, or illustration” and not “preferred” or “advantageous over other examples. ” The detailed description includes specific details for the purpose of providing an understanding of the described techniques. These techniques, however, may be practiced without these specific details. In some figures, known structures and devices are shown in block diagram form in order to avoid obscuring the concepts of the described examples.
[0271] The description herein is provided to enable a person having ordinary skill in the art to make or use the disclosure. Various modifications to the disclosure will be apparent to a person having ordinary skill in the art, and the generic principles defined herein may be applied to other variations without departing from the scope of the disclosure. Thus, the disclosure is not limited to the examples and designs described herein but is to be accorded the broadest scope consistent with the principles and novel features disclosed herein.
Claims
1.A user equipment (UE) , comprising:one or more memories storing processor-executable code;a transceiver; andone or more processors coupled with the one or more memories and the transceiver, the one or more processors configured to:receive, via the transceiver, from an active cell, configuration information indicating one or more resources for measurement by the UE; andtransmit, via the transceiver, to the active cell, channel information associated with an inactive secondary cell, wherein the one or more processors are configured to determine the channel information based at least in part on the measurement of the one or more resources and transmit the channel information previous to completion of an activation of the inactive secondary cell for carrier aggregation with the active cell.2.The UE of claim 1, wherein the one or more processors are configured to:transmit, via the transceiver, to the active cell, capability information indicating a capability of the UE to transmit the channel information associated with the inactive secondary cell previous to completion of the activation of the inactive secondary cell for carrier aggregation with the active cell.3.The UE of claim 1, wherein the one or more processors are configured to:receive, via the transceiver, from the active cell, an activation command to activate the inactive secondary cell for carrier aggregation with the active cell, wherein the one or more processors are configured to receive the configuration information and transmit the channel information previous to reception of the activation command.4.The UE of claim 1, wherein the one or more processors are configured to:receive, via the transceiver, from the active cell, an activation command to activate the inactive secondary cell for carrier aggregation with the active cell, wherein the one or more processors are configured to receive the configuration information or transmit the channel information subsequent to reception of the activation command and during an activation delay that precedes the completion of the activation of the inactive secondary cell.5.The UE of claim 4, wherein the one or more processors are configured to receive the activation command separate from the configuration information or receive the configuration information with the activation command.6.The UE of claim 1, wherein the configuration information indicates the one or more resources corresponding to the inactive secondary cell or multiple inactive secondary cells or indicates the one or more resources corresponding to one or more active cells, and wherein the one or more processors are configured to determine the channel information based at least in part on the one or more resources.7.The UE of claim 1, wherein the one or more processors are configured to transmit, via the transceiver, the channel information after a reference signal is synchronized, the reference signal associated with the one or more resources.8.The UE of claim 1, wherein the one or more processors are configured to:store an indication of one or more quasi-colocation (QCL) properties for a reference signal associated with the one or more resources.9.The UE of claim 1, wherein the configuration information indicates a report configuration identifier and a measurement resource identifier, wherein the report configuration identifier is from a set of report configuration identifiers associated with the active cell or the inactive secondary cell and the measurement resource identifier is associated with the report configuration identifier and is from a set of measurement resource identifiers associated with the active cell or the inactive secondary cell.10.The UE of claim 1, wherein the one or more processors are configured to:receive, via the transceiver, a radio resource control (RRC) reconfiguration message, wherein the one or more processors are configured to transmit the channel information previous to completion of the activation of the inactive secondary cell based at least in part on the RRC reconfiguration message being a trigger for the channel information.11.The UE of claim 1, wherein the one or more processors are configured to:receive, via the transceiver, a medium access control-control element (MAC-CE) or downlink control information (DCI) , wherein the one or more processors are configured to transmit the channel information previous to completion of the activation of the inactive secondary cell periodically, semi-persistently, or aperiodically based at least in part on the MAC-CE or the DCI.12.A network entity, comprising:one or more memories storing processor-executable code; andone or more processors coupled with the one or more memories, the one or more processors configured to:output, via an active cell to a user equipment (UE) , configuration information indicating one or more resources for measurement by the UE; andobtain, from the UE via the active cell, channel information associated with an inactive secondary cell, wherein the channel information is based at least in part on the measurement of the one or more resources and the one or more processors are configured to obtain the channel information previous to completion of an activation of the inactive secondary cell for carrier aggregation with the active cell.13.The network entity of claim 12, wherein the one or more processors are configured to:obtain, from the UE via the active cell, capability information indicating a capability of the UE to transmit the channel information associated with the inactive secondary cell previous to completion of the activation of the inactive secondary cell for carrier aggregation with the active cell.14.The network entity of claim 12, wherein the one or more processors are configured to:output, to the UE via the active cell, an activation command to activate the inactive secondary cell for carrier aggregation with the active cell, wherein the one or more processors are configured to output the configuration information and obtain the channel information previous to reception of the activation command.15.The network entity of claim 12, wherein the one or more processors are configured to:output, to the UE via the active cell, an activation command to activate the inactive secondary cell for carrier aggregation with the active cell, wherein the one or more processors are configured to output the configuration information or obtain the channel information subsequent to reception of the activation command and during an activation delay that precedes the completion of the activation of the inactive secondary cell.16.The network entity of claim 12, wherein the configuration information indicates the one or more resources corresponding to the inactive secondary cell or multiple inactive secondary cells or indicates the one or more resources corresponding to one or more active cells.17.The network entity of claim 12, wherein the configuration information indicates a report configuration identifier and a measurement resource identifier, wherein the report configuration identifier is from a set of report configuration identifiers associated with the active cell or the inactive secondary cell and the measurement resource identifier is associated with the report configuration identifier and is from a set of measurement resource identifiers associated with the active cell or the inactive secondary cell.18.The network entity of claim 12, wherein the one or more processors are configured to:output a radio resource control (RRC) reconfiguration message, wherein the one or more processors are configured to obtain the channel information previous to completion of the activation of the inactive secondary cell based at least in part on the RRC reconfiguration message being a trigger for the channel information.19.The network entity of claim 12, wherein the one or more processors are configured to:output a medium access control-control element (MAC-CE) or downlink control information (DCI) , wherein the one or more processors are configured to obtain the channel information previous to completion of the activation of the inactive secondary cell periodically, semi-persistently, or aperiodically based at least in part on the MAC-CE or the DCI.20.A method for wireless communications at a user equipment (UE) , comprising:receiving, from an active cell, configuration information indicating one or more resources for measurement by the UE; andtransmitting, to the active cell, channel information associated with an inactive secondary cell, wherein the channel information is determined by the UE based at least in part on the measurement of the one or more resources and is transmitted previous to completion of an activation of the inactive secondary cell for carrier aggregation with the active cell.