Configuring CSI reference signal triggering when secondary cell is dormant

Abstract

Methods, systems, and devices for wireless communications are described. A user equipment (UE) may identify cell measurements supported by the UE, the cell measurements being associated with a UE supporting channel state information measurements of dormant secondary cells in a cell group. The UE may receive downlink control information triggering channel state information reference signal measurements for a set of cells in the cell group, the set of cells including the dormant secondary cells. The UE may perform channel state information reference signal measurements on one or more cells in the set of cells based at least in part on the downlink control information, in accordance with the cell measurements supported by the UE, to identify channel state information for each of the one or more cells.

Description

Technical Field

[0001] The following content relates to wireless communications, including channel state information reference signal triggering when configuring secondary cell dormancy. Background Art

[0002] Wireless communication systems are widely deployed to provide various types of communication content, such as voice, video, packet data, messages, broadcasts, etc. These systems can support communication with multiple users by sharing available system resources (e.g., time, frequency, and power). Examples of such multiple access systems include fourth generation (4G) systems, such as long term evolution (LTE) systems, advanced LTE (LTE-A) systems, or LTE-A Pro systems, and fifth generation (5G) systems, which may be referred to as new radio (NR) systems. These systems may employ techniques such as code division multiple access (CDMA), time division multiple access (TDMA), frequency division multiple access (FDMA), orthogonal frequency division multiple access (OFDMA), or discrete Fourier transform spread spectrum orthogonal frequency division multiplexing (DFT-S-OFDM). A wireless multiple access communication system may include one or more base stations or one or more network access nodes, each of which simultaneously supports communication of multiple communication devices, which may also be referred to as user equipment (UE). Summary of the invention

[0003] The described technology relates to improved methods, systems, devices and apparatuses for supporting channel state information (CSI) reference signal triggering when configuring secondary cell (SCell) sleep. In general, the described technology enables a user equipment (UE) to identify or otherwise determine its cell measurement support for performing reference signal measurements and reporting in the presence of a dormant cell within a cell group. Cell measurements and reports may include reference signal measurements and reports that the UE cannot perform for dormant cells. Therefore, the UE can receive downlink control information (DCI) that triggers reference signal measurements (e.g., CSI reference signal (CSI-RS) measurements) of (multiple) carriers within a cell group, and perform measurements and reports based on the cell measurements it supports. For example, based on the triggered cell being in dormant mode, the UE can discard the DCI or reporting configuration within the DCI.

[0004] A method for wireless communication at a UE is described. The method may include: identifying a cell measurement supported by the UE, the cell measurement being associated with the UE supporting CSI measurement of a dormant SCell in a cell group; receiving a DCI triggering CSI-RS measurement for a set of cells in the cell group, the set of cells including the dormant SCell; and performing CSI-RS measurement on one or more cells in the set of cells based on the DCI in accordance with the cell measurement supported by the UE to identify CSI of each of the one or more cells.

[0005] A device for wireless communication at a UE is described. The device may include a processor, a memory coupled to the processor, and instructions stored in the memory. The instructions may be executed by the processor to cause the device to identify a cell measurement supported by the UE, the cell measurement being associated with a UE supporting CSI measurement of a dormant SCell in a cell group, receive a DCI triggering CSI-RS measurement for a set of cells in the cell group, the set of cells including the dormant SCell, and based on the DCI, perform CSI-RS measurement on one or more cells in the set of cells according to the cell measurement supported by the UE to identify the CSI of each of the one or more cells.

[0006] Another apparatus for wireless communication at a UE is described. The apparatus may include means for identifying a cell measurement supported by the UE, the cell measurement being associated with a UE supporting CSI measurement of a dormant SCell in a cell group; receiving a DCI triggering CSI-RS measurement for a set of cells in the cell group, the set of cells including the dormant SCell; and performing CSI-RS measurement on one or more cells in the set of cells based on the DCI to identify CSI of each of the one or more cells according to the cell measurement supported by the UE.

[0007] A non-transitory computer-readable medium storing code for wireless communication at a UE is described. The code may include instructions executable by a processor to identify a cell measurement supported by the UE, the cell measurement associated with the UE supporting CSI measurement of dormant SCells in a cell group, receive a DCI triggering CSI-RS measurement for a set of cells in the cell group, the set of cells including the dormant SCells, and perform CSI-RS measurement on one or more cells in the set of cells based on the DCI to identify CSI of each of the one or more cells according to the cell measurement supported by the UE.

[0008] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, performing according to cell measurements supported by the UE may include operations, features, apparatus, or instructions for determining that a DCI includes at least one CSI reporting configuration associated with a dormant SCell, and discarding the DCI and suppressing CSI-RS measurements on cells in a cell set based on the DCI triggering CSI measurements on the dormant SCell.

[0009] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, execution of cell measurements supported by a UE may include operations, features, apparatus, or instructions for determining that the number of active cells in a cell group may be less than a threshold, and based on the number of active cells being less than the threshold and the DCI triggering CSI-RS measurements on dormant SCells, discarding the DCI and suppressing CSI-RS measurements.

[0010] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, execution of cell measurements supported by a UE may include operations, features, apparatus, or instructions for determining that the number of cells in a cell group may be less than a threshold, and discarding DCI and suppressing CSI-RS measurements based on the number of cells being less than the threshold and the DCI triggering CSI-RS measurements on dormant SCells.

[0011] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, performance of cell measurements supported by the UE may include operations, features, apparatus, or instructions for determining that at least one CSI reporting configuration identified in the DCI may be associated with a dormant SCell, triggering CSI measurements on the dormant SCell based on the DCI, suppressing CSI-RS measurements on cells in a set of cells identified in at least one CSI reporting configuration associated with the dormant cell, and triggering CSI measurements on the dormant SCell based on the DCI, performing CSI-RS measurements on cells in a set of cells identified in one or more other CSI reporting configurations associated with a non-dormant cell.

[0012] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, execution of cell measurements supported by a UE may include operations, features, apparatus, or instructions for determining that the number of active cells in a cell group satisfies a threshold, and based on the number of active cells that satisfy the threshold and the DCI triggering CSI-RS measurement on the dormant SCell, performing CSI-RS measurement on cells in a set of cells identified in one or more other CSI reporting configurations associated with non-dormant cells.

[0013] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, execution of cell measurements supported by a UE may include operations, features, apparatus, or instructions for determining that the number of cells in a cell group satisfies a threshold, and based on the number of cells satisfying the threshold and the DCI triggering CSI-RS measurements on the dormant SCell, performing CSI-RS measurements on cells in a set of cells identified in one or more other CSI reporting configurations associated with a non-dormant cell.

[0014] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, execution of cell measurements supported by a UE may include operations, features, apparatus, or instructions for: identifying that at least one CSI reporting configuration identified in a DCI may be associated with a non-dormant cell in a cell group, and performing CSI-RS measurements on a cell associated with at least one CSI reporting configuration associated with a non-dormant cell based on at least one CSI reporting configuration associated with a non-dormant cell and a DCI triggering CSI measurement on a dormant cell.

[0015] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, the DCI includes a downlink grant that triggers a CSI-RS measurement or an uplink grant that triggers a CSI-RS measurement.

[0016] Some examples of the methods, apparatus, and non-transitory computer-readable media described herein may also include operations, features, modules, or instructions for sending a CSI report indicating CSI of one or more cells in a cell group, wherein the CSI report indicates CSI of active cells in the cell group.

[0017] A method for wireless communication in a primary cell is described. The method may include: identifying a cell group configured for a UE; sending a DCI to the UE to trigger CSI-RS measurement of a set of cells in the cell group, the cell set including a dormant SCell, and receiving a CSI report from the UE indicating CSI of one or more cells in the cell group, the one or more cells including an active cell in the cell group.

[0018] An apparatus for wireless communication in a primary cell is described. The apparatus may include a processor, a memory coupled to the processor, and instructions stored in the memory. The instructions may be executed by the processor to cause the apparatus to identify a cell group configured for a UE, send a DCI to the UE to trigger CSI-RS measurement of a set of cells in the cell group, the set of cells including dormant SCells, and receive a CSI report from the UE indicating CSI of one or more cells in the cell group, the one or more cells including active cells in the cell group.

[0019] Another apparatus for wireless communication in a primary cell is described. The apparatus may include means for identifying a cell group configured for a UE, sending a DCI to the UE to trigger CSI-RS measurement of a set of cells in the cell group, and receiving a CSI report from the UE indicating CSI of one or more cells in the cell group, the one or more cells including an active cell in the cell group.

[0020] A non-transitory computer-readable medium storing code for wireless communication in a primary cell is described. The code may include instructions executable by a processor to identify a cell group configured for a UE, send a DCI to the UE to trigger CSI-RS measurement of a set of cells in the cell group, the cell set including a dormant SCell, and receive a CSI report from the UE indicating CSI of one or more cells in the cell group, the one or more cells including an active cell of the cell group.

[0021] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, receiving a CSI report may include operations, features, modules, or instructions for receiving a CSI report indicating CSI of a non-dormant cell in a set of cells that may be associated with a CSI reporting configuration. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 An example of a wireless communication system supporting channel state information-RS (CSI-RS) reference signal (RS) triggering when a secondary cell (SCell) is configured for dormancy according to aspects of the present disclosure is shown.

[0023] Figure 2A and Figure 2B Aspects of an example wireless communication system that supports CSI-RS triggering when SCell dormancy is configured in accordance with aspects of the present disclosure are illustrated.

[0024] Figure 3 An example of a carrier configuration supporting CSI-RS triggering when SCell dormancy is configured according to aspects of the present disclosure is shown.

[0025] Figure 4 An example of a process for supporting CSI-RS triggering when SCell dormancy is configured according to aspects of the present disclosure is shown.

[0026] Figure 5 and Figure 6 A block diagram of a device supporting CSI-RS triggering when SCell dormancy is configured according to aspects of the present disclosure is shown.

[0027] Figure 7 A block diagram of a communication manager supporting CSI-RS triggering when SCell dormancy is configured according to aspects of the present disclosure is shown.

[0028] Figure 8 A diagram of a system including devices supporting CSI-RS triggering when SCell dormancy is configured according to aspects of the present disclosure is shown.

[0029] Fig. 9 and Fig.10A block diagram of a device supporting CSI-RS triggering when SCell dormancy is configured according to aspects of the present disclosure is shown.

[0030] Fig.11 A block diagram of a communication manager supporting CSI-RS triggering when SCell dormancy is configured according to aspects of the present disclosure is shown.

[0031] Fig.12 A diagram of a system including devices supporting CSI-RS triggering when SCell dormancy is configured according to aspects of the present disclosure is shown.

[0032] Figures 13 to 16 A flow chart illustrating a method of supporting CSI-RS triggering when SCell dormancy is configured according to aspects of the present disclosure is shown. DETAILED DESCRIPTION

[0033] Some wireless communication systems may use carrier aggregation (CA) technology or similar technology, in which multiple cells (e.g., cell groups) are configured for a user equipment (UE). The UE may be configured with a primary cell (PCell) and one or more secondary cells (SCells), each of which communicates wirelessly with the UE on a corresponding carrier. CA technology may support cross-carrier scheduling, in which the PCell (for example) triggers reference signal measurements and reports of other cells within its own carrier and / or the cell group. Reference signal measurements may include the UE measuring a channel state information reference signal (CSI-RS) and / or CSI interference management (CSI-IM) resource on a carrier corresponding to the triggered cell. Generally, it is not expected that the UE performs such reference signal measurements and reports for dormant cells within a cell group. This may result in a situation where the triggered downlink control information (DCI) includes a reporting configuration that triggers reference signal measurements and reports on dormant cells, which is not supported by the UE.

[0034] Various aspects of the present disclosure are initially described in the context of a wireless communication system. In general, the described techniques enable a UE to identify or otherwise determine that its cell measurements support reference signal measurements and reporting of dormant cells within a cell group. Cell measurements and reports may include reference signal measurements and reporting of dormant cells that the UE cannot perform. Thus, the UE may receive a DCI that triggers reference signal measurements (e.g., CSI-RS / CSI-IM measurements) for carriers within a cell group, and perform measurements and reporting based on the cell measurements it supports. For example, based on the triggered cell (e.g., a cell included in a measurement request) being in dormant mode, the UE may discard the DCI or reporting configuration within the DCI.

[0035] Various aspects of the present disclosure are further illustrated and described with reference to apparatus diagrams, system diagrams, and flow charts related to CSI-RS triggering when configuring SCell sleep.

[0036] Figure 1 An example of a wireless communication system 100 that supports CSI-RS triggering when SCell dormancy is configured according to various aspects of the present disclosure is shown. The wireless communication system 100 may include one or more base stations 105, one or more UEs 115, and a core network 130. In some examples, the wireless communication system 100 may be a long term evolution (LTE) network, an advanced LTE (LTE-A) network, an LTE-A Pro network, or a new radio (NR) network. In some examples, the wireless communication system 100 may support enhanced broadband communications, ultra-reliable (e.g., mission-critical) communications, low-latency communications, communications with low-cost and low-complexity devices, or any combination thereof.

[0037] The base stations 105 may be dispersed throughout a geographic area to form the wireless communication system 100 and may be devices of different forms or with different capabilities. The base stations 105 and the UEs 115 may communicate wirelessly via one or more communication links 125. Each base station 105 may provide a coverage area 110 over which the UEs 115 and the base stations 105 may establish one or more communication links 125. The coverage area 110 may be an example of a geographic area over which the base stations 105 and the UEs 115 may support communication of signals according to one or more radio access technologies.

[0038] The UEs 115 may be dispersed throughout the coverage area 110 of the wireless communication system 100, and each UE 115 may be stationary, mobile, or both at different times. The UEs 115 may be devices of different forms or with different capabilities. Figure 1 Some example UEs 115 are shown in FIG. 1. The UEs 115 described herein can communicate with various types of devices, such as other UEs 115, base stations 105, or network devices (e.g., core network nodes, relay devices, integrated access and backhaul (IAB) nodes, or other network devices), such as Figure 1 shown.

[0039] The base stations 105 may communicate with the core network 130, or with each other, or both. For example, the base stations 105 may interface with the core network 130 via one or more backhaul links 120 (e.g., via S1, N2, N3, or other interfaces). The base stations 105 may communicate with each other directly (e.g., directly between the base stations 105) or indirectly (e.g., via the core network 130), or both, via the backhaul links 120 (e.g., via X2, Xn, or other interfaces). In some examples, the backhaul links 120 may be or include one or more wireless links.

[0040] One or more base stations 105 described herein may include or may be referred to by a person of ordinary skill in the art as a base station transceiver, a radio base station, an access point, a radio transceiver, a NodeB, an eNodeB (eNB), a next generation NodeB or a giga NodeB (any of which may be referred to as a gNB), a Home NodeB, a Home eNodeB, or other suitable terminology.

[0041] 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 a "device" may also be referred to as a unit, a station, a terminal, or a client, etc. UE 115 may also include or may be referred to as a personal electronic device, such as a cellular phone, a personal digital assistant (PDA), a tablet computer, a laptop computer, or a personal computer. In some examples, UE 115 may include or be referred to as a wireless local loop (WLL) station, an Internet of Things (IoT) device, an Internet of Everything (IoE) device, or a machine type communication (MTC) device, etc., which may be implemented in various objects such as appliances or vehicles, meters, etc.

[0042] like Figure 1 As shown, the UE 115 described herein is capable of communicating with various types of devices, such as other UEs 115 that may sometimes act as relays, as well as base stations 105 and network devices, including macro eNBs or gNBs, small cell eNBs or gNBs, or relay base stations, etc.

[0043] The UE 115 and the base station 105 may communicate with each other wirelessly via one or more communication links 125 through one or more carriers. The term "carrier" may refer to a set of radio frequency spectrum resources having a defined physical layer structure for supporting the communication link 125. For example, a carrier for the communication link 125 may include a portion (e.g., bandwidth portion (BWP)) of a radio spectrum band operating according to one or more physical layer channels of a given radio access technology (e.g., LTE, LTE-A, LTE-A Pro, NR). Each physical layer channel may carry acquisition signaling (e.g., synchronization signals, system information), control signaling for coordinating carrier operations, user data, or other signaling. The wireless communication system 100 may use carrier aggregation or multi-carrier operation to support communication with the UE 115. Depending on the carrier aggregation configuration, the UE 115 may be configured with multiple downlink component carriers and one or more uplink component carriers. Carrier aggregation may be used with frequency division duplex (FDD) and time division duplex (TDD) component carriers.

[0044] In some examples (e.g., in a carrier aggregation configuration), a carrier may also have acquisition signaling or control signaling that coordinates the operation of other carriers. A carrier may be associated with a frequency channel (e.g., an Evolved Universal Mobile Telecommunications System Terrestrial Radio Access (E-UTRA) Absolute Radio Frequency Channel Number (EARFCN)) and may be located according to a channel raster for discovery by a UE 115. A carrier may operate in a standalone mode, where initial acquisition and connection may be performed by a UE 115 via the carrier, or a carrier may operate in a non-standalone mode, where a connection is anchored using a different carrier (e.g., the same or different radio access technology).

[0045] The communication link 125 shown in the wireless communication system 100 may include an uplink transmission from the UE 115 to the base station 105, or a downlink transmission from the base station 105 to the UE 115. A carrier may carry downlink or uplink communications (e.g., in FDD mode), or may be configured to carry both downlink and uplink communications (e.g., in TDD mode).

[0046] A carrier may be associated with a particular bandwidth of a radio spectrum, and in some examples, a carrier bandwidth may be referred to as a "system bandwidth" of a carrier or wireless communication system 100. For example, a carrier bandwidth may be one of a plurality of bandwidths determined for a carrier of a particular radio access technology (e.g., 1.4, 3, 5, 10, 15, 20, 40, or 80 megahertz (MHz)). A device of the wireless communication system 100 (e.g., a base station 105, a UE 115, or both) may have a hardware configuration that supports communications on a particular carrier bandwidth, or may be configured to support communications on one of a set of carrier bandwidths. In some examples, the wireless communication system 100 may include a base station 105 or a UE 115 that supports simultaneous communications via carriers associated with multiple carrier bandwidths. In some examples, each served UE 115 may be configured to operate on a portion (e.g., a subband, a BWP) or all of a carrier bandwidth.

[0047] The signal waveform transmitted on the carrier may be composed 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 using MCM technology, a resource element may be composed of a symbol period (e.g., the duration of a modulation symbol) and a subcarrier, where the symbol period and the subcarrier spacing are inversely related. The number of bits carried by each resource element may depend on the modulation scheme (e.g., the order of the modulation scheme, the coding rate of the modulation scheme, or both). Therefore, the more resource elements received by UE 115 and the higher the order of the modulation scheme, the higher the data rate of UE 115 may be. Wireless communication resources may refer to a combination of radio frequency spectrum resources, time resources, and spatial resources (e.g., spatial layers or beams), and the use of multiple spatial layers may further improve the data rate or data integrity of communications with UE 115.

[0048] One or more parameter sets for a carrier may be supported, where the parameter set may include a subcarrier spacing (Δf) and a cyclic prefix. A carrier may be divided into one or more BWPs with the same or different numbers. 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 by a UE 115 may be limited to one or more active BWPs.

[0049] The time interval of the base station 105 or the UE 115 can be expressed as a multiple of a basic time unit, and the basic time unit can be, for example, T s =1 / (Δf max ·N f ) seconds sampling period, where Δf max It can represent the maximum supported subcarrier spacing, and N fThe maximum supported discrete Fourier transform (DFT) size may be indicated. The time intervals of the communication resources may be organized according to radio frames, each radio frame 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).

[0050] Each frame may include multiple consecutively numbered subframes or time slots, and each subframe or time slot may have the same duration. In some examples, the frame may be divided (e.g., in the time domain) into subframes, and each subframe may be further divided into multiple time slots. Optionally, each frame may include a variable number of time slots, and the number of time slots may depend on the subcarrier spacing. Each time slot may include multiple symbol periods (e.g., depending on the length of a cyclic prefix pre-appended to each symbol period). In some wireless communication systems 100, the time slot may be further divided into multiple mini-time slots containing one or more symbols. In addition to the cyclic prefix, each symbol period may contain one or more (e.g., N f ) sampling period. The duration of a symbol period may depend on the subcarrier spacing or the operating frequency band.

[0051] A subframe, slot, mini-slot, or symbol may be the smallest scheduling unit (e.g., in the time domain) of the wireless communication system 100 and may be referred to as a transmission time interval (TTI). In some examples, the TTI duration (e.g., the number of symbol periods in a TTI) may be variable. Additionally or alternatively, the smallest scheduling unit of the wireless communication system 100 may be dynamically selected (e.g., in a burst of a shortened TTI (sTTI)).

[0052] Physical channels may be multiplexed on a carrier according to various techniques. For example, physical control channels and physical data channels may be multiplexed on a downlink carrier using one or more of a time division multiplexing (TDM) technique, a frequency division multiplexing (FDM) technique, or a hybrid TDM-FDM technique. A control region (e.g., a control resource set (CORESET)) of a physical control channel may be defined by a plurality of symbol periods and may be extended across a system bandwidth or a subset of a system bandwidth of a carrier. One or more control regions (e.g., CORESETs) may be configured for a group of UEs 115. For example, one or more UEs 115 may monitor or search for control information in a control region according to one or more search space sets, and each search space set may include one or more control channel candidates in one or more aggregation levels arranged in a cascaded manner. The aggregation level of a control channel candidate may refer to the number of control channel resources (e.g., control channel elements (CCEs)) associated with coded information of a control information format having a given payload size. The search space sets may include a common search space set configured for transmitting control information to multiple UEs 115 , and a UE-specific search space set for transmitting control information to a specific UE 115 .

[0053] Each base station 105 can provide communication coverage via one or more cells, such as macro cells, small cells, hot spots or other types of cells, or any combination thereof. The term "cell" can refer to a logical communication entity used to communicate with the base station 105 (e.g., via a carrier), and can be associated with an identifier (e.g., a physical cell identifier (PCID), a virtual cell identifier (VCID), etc.) used to distinguish adjacent cells. In some examples, a cell can also refer to a geographic coverage area 110 or a portion of a geographic coverage area 110 (e.g., a sector) on which a logical communication entity operates. Depending on various factors, such as the capabilities of the base station 105, these cells can range from smaller areas (e.g., structures, subsets of structures) to larger areas. For example, a cell can be or include a building, a subset of a building, or an external space between or overlapping a geographic coverage area 110, etc.

[0054] A macro cell typically covers a relatively large geographic area (e.g., a radius of several kilometers) and may allow unrestricted access to a UE 115 by subscribing to a service from a network provider that supports the macro cell. A small cell may be associated with a base station 105 with lower power than a macro cell, and the small cell may operate in a frequency band that is the same or different (e.g., licensed, unlicensed) from the macro cell. A small cell may provide unrestricted access to a UE 115 that has a service subscription to a network provider, or may provide restricted access to a UE 115 associated with a small cell (e.g., a UE 115 in a closed subscriber group (CSG), a UE 115 associated with a user in a home or office). A base station 105 may support one or more cells, and may also use one or more component carriers to support communications on one or more cells.

[0055] In some examples, a carrier may support multiple cells, and different cells may be configured according to different protocol types (e.g., MTC, narrowband IoT (NB-IoT), enhanced mobile broadband (eMBB)) that may provide access to different types of devices.

[0056] In some examples, the base stations 105 may be mobile, and thus provide communication coverage for mobile geographic coverage areas 110. In some examples, different geographic coverage areas 110 associated with different technologies may overlap, but the different geographic coverage areas 110 may be supported by the same base station 105. In other examples, overlapping geographic coverage areas 110 associated with different technologies may be supported by different base stations 105. The wireless communication system 100 may include, for example, a heterogeneous network in which different types of base stations 105 provide coverage for various geographic coverage areas 110 using the same or different radio access technologies.

[0057] The wireless communication system 100 may support synchronous or asynchronous operation. For synchronous operation, the base stations 105 may have similar frame timing, and transmissions from different base stations 105 may be approximately aligned in time. For asynchronous operation, the base stations 105 may have different frame timing, and in some examples, transmissions from different base stations 105 may not be aligned in time. The techniques described herein may be used for either synchronous or asynchronous operation.

[0058] Some UEs 115 (such as MTC or IoT devices) may be low-cost or low-complexity devices and may provide automated communication between machines (e.g., via machine-to-machine (M2M) communication). M2M communication or MTC may refer to data communication technology that allows devices to communicate with each other or with a base station 105 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 that utilizes the information or presents the information to a person interacting with the application. Some UEs 115 may be designed to collect information or implement automated behavior of machines or other devices. Examples of applications for MTC devices include smart metering, inventory monitoring, water level monitoring, equipment monitoring, healthcare monitoring, wildlife monitoring, weather and geological event monitoring, fleet management and tracking, remote security sensing, physical access control, and transaction-based commercial charging.

[0059] Some UEs 115 may be configured to employ a reduced power consumption mode of operation, such as half-duplex communication (e.g., a mode that supports unidirectional communication via transmission or reception, but does not support simultaneous transmission and reception). In some examples, half-duplex communication may be performed at a reduced peak rate. Other power saving techniques for UE 115 include entering a power saving deep sleep mode when not engaged in active communications, operating over a limited bandwidth (e.g., according to narrowband communications), or a combination of these techniques. For example, some UEs 115 may be configured to operate using a narrowband protocol type that is associated with a defined portion or range (e.g., a set of subcarriers or resource blocks (RBs)) within a carrier, within a guard band of a carrier, or outside a carrier.

[0060] The wireless communication system 100 may be configured to support ultra-reliable communication or low-latency communication, or various combinations thereof. For example, the wireless communication system 100 may be configured to support ultra-reliable low-latency communication (URLLC) or mission-critical communication. UE 115 may be designed to support ultra-reliable, low-latency or critical functions (e.g., mission-critical functions). Ultra-reliable communication may include private communication or group communication, and may be supported by one or more mission-critical services, such as mission-critical push-to-talk (MCPTT), mission-critical video (MCVideo), or mission-critical data (MCData). Support for mission-critical functions may include service priorities, and mission-critical services may be used for public safety or general commercial applications. The terms ultra-reliable, low-latency, mission-critical, and ultra-reliable low-latency may be used interchangeably here.

[0061] In some examples, UE 115 is also able to communicate directly with other UE 115 via a device-to-device (D2D) communication link 135 (e.g., using a peer-to-peer (P2P) or D2D protocol). One or more UEs 115 utilizing D2D communication may be within a geographic coverage area 110 of a base station 105. Other UEs 115 in the group may be outside the geographic coverage area 110 of the base station 105 or unable to receive transmissions from the base station 105. In some examples, a group of UEs 115 communicating via D2D communication may utilize a one-to-many (1:M) system, in which each UE 115 transmits to each other UE 115 in the group. In some examples, the base station 105 facilitates resource scheduling for D2D communication. In other cases, D2D communication is performed between UEs 115 without involving the base station 105.

[0062] In some systems, the D2D communication link 135 can be an example of a communication channel between vehicles (e.g., UE 115), such as a sidelink communication channel. In some examples, vehicles can communicate using vehicle-to-everything (V2X) communication, vehicle-to-vehicle (V2V) communication, or some combination of these communications. Vehicles can send information related to traffic conditions, signal scheduling, weather, safety, emergency situations, or any other information related to the V2X system. In some examples, vehicles in a V2X system can communicate with roadside infrastructure (such as roadside units) via one or more network nodes (e.g., base station 105) using vehicle-to-network (V2N) communication, or both.

[0063] The core network 130 may provide user authentication, access authorization, tracking, Internet Protocol (IP) connection, and other access, routing, or mobility functions. The core network 130 may be an evolved packet core (EPC) or a 5G core (5GC), which may include at least one control plane entity (e.g., a mobility management entity (MME), an access and mobility management function (AMF)) for managing access and mobility and at least one user plane entity (e.g., a serving gateway (S-GW), a packet data network (PDN) gateway (P-GW), or a user plane function (UPF)) for routing packets or interconnections to an external network. The control plane entity may manage non-access stratum (NAS) functions of UE 115 served by a base station 105 associated with the core network 130, such as mobility, authentication, and bearer management. User IP packets may be transmitted through user plane entities, which may provide IP address allocation and other functions. The user plane entity may be connected to a network operator IP service 150. The network operator IP service 150 may include access to the Internet, (multiple) intranets, IP multimedia subsystems (IMS), or packet-switched streaming services.

[0064] Some network devices, such as base stations 105, may include subcomponents, such as access network entities 140, which may be examples of access node controllers (ANCs). Each access network entity 140 may communicate with UE 115 through one or more other access network transport entities 145, which may be referred to as radio heads, smart radio heads, or transmission / reception points (TRPs). Each access network transport entity 145 may include one or more antenna panels. In some configurations, the various functions of each access network entity 140 or base station 105 may be distributed across various network devices (e.g., radio heads and ANCs), or merged into a single network device (e.g., base station 105).

[0065] The wireless communication system 100 may operate using one or more frequency bands, typically in the range of 300 megahertz (MHz) to 300 gigahertz (GHz). Typically, the region from 300 MHz to 3 GHz is referred to as the ultra-high frequency (UHF) region or decimeter band because the wavelengths range from approximately 1 decimeter to 1 meter long. UHF waves may be blocked or redirected by buildings and environmental features, but these waves may penetrate structures sufficient for a macro cell to provide service to a UE 115 located indoors. Transmission of UHF waves may be associated with smaller antennas and a shorter range (e.g., less than 100 kilometers) than transmission of smaller frequencies and longer waves using the high frequency (HF) or very high frequency (VHF) portions of the spectrum below 300 MHz.

[0066] The wireless communication system 100 may also operate in a super high frequency (SHF) region using a frequency band from 3 GHz to 30 GHz, also known as a centimeter wave band, or in an extremely high frequency (EHF) region of the spectrum (e.g., from 30 GHz to 300 GHz), also known as a millimeter wave band. In some examples, the wireless communication system 100 may support millimeter wave (mmW) communications between UE 115 and base station 105, and the EHF antennas of the corresponding devices may be smaller and closer than UHF antennas. In some examples, this may facilitate the use of antenna arrays within the device. However, the propagation of EHF transmissions may be affected by greater atmospheric attenuation and a shorter range than SHF or ultra-high frequency transmissions. The technology disclosed herein may be used in transmissions using one or more different frequency regions, and the designated use of frequency bands across these frequency regions may vary from country to country or regulatory agency.

[0067] The wireless communication system 100 can utilize licensed and unlicensed radio frequency spectrum bands. For example, the wireless communication system 100 can use license assisted access (LAA), LTE-unlicensed (LTE-U) radio access technology, or NR technology in an unlicensed band such as the 5 GHz industrial, scientific, and medical (ISM) band. When operating in an unlicensed radio spectrum band, devices such as base stations 105 and UEs 115 can use carrier sensing for conflict detection and avoidance. In some examples, operations in unlicensed bands can be based on carrier aggregation configurations and component carriers operating in licensed bands (e.g., LAA). Operations in unlicensed spectrum can include downlink transmissions, uplink transmissions, P2P transmissions, or D2D transmissions, among others.

[0068] The base station 105 or UE 115 may be equipped with multiple antennas that may be used to employ techniques such as transmit diversity, receive diversity, multiple-input multiple-output (MIMO) communications, or beamforming. The antennas of the base station 105 or UE 115 may be located in one or more antenna arrays or antenna panels that 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, the antennas or antenna arrays associated with the base station 105 may be located at different geographical locations. The base station 105 may have an antenna array having multiple rows and columns of antenna ports that the base station 105 may use to support beamforming for communications with the UE 115. Similarly, the UE 115 may have one or more antenna arrays that may support various MIMO or beamforming operations. Additionally or alternatively, the antenna panel may support radio frequency beamforming of signals sent via the antenna ports.

[0069] The base station 105 or UE 115 can use MIMO communication to exploit multipath signal propagation and improve spectral efficiency by sending or receiving multiple signals via different spatial layers. This technology can be referred to as spatial multiplexing. For example, multiple signals can be sent by a transmitting device via different antennas or different antenna combinations. Similarly, a receiving device can receive multiple signals via different antennas or different antenna combinations. Each of the multiple signals can be referred to as a separate spatial stream and can carry bits associated with the same data stream (e.g., the same codeword) or different data streams (e.g., different codewords). Different spatial layers can be associated with different antenna ports for channel measurement and reporting. MIMO technology includes single-user MIMO (SU-MIMO), in which multiple spatial layers are sent to the same receiving device, and multi-user MIMO (MU-MIMO), in which multiple spatial layers are sent to multiple devices.

[0070] 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 base station 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 signals communicated via antenna elements of an antenna array so that some signals propagating in a particular direction relative to the antenna array experience constructive interference, while other signals experience destructive interference. Adjustments to signals communicated via antenna elements may include the transmitting device or the receiving device applying an amplitude offset, a phase offset, or both to signals carried via antenna elements associated with the device. Adjustments associated with each antenna element may be defined by a set of beamforming weights associated with a particular direction (e.g., relative to the antenna array of the transmitting device or the receiving device, or relative to some other direction).

[0071] The base station 105 or the UE 115 may use beam scanning techniques as part of a beamforming operation. For example, the base station 105 may use multiple antennas or antenna arrays (e.g., antenna panels) to perform beamforming operations for directional communication with the UE 115. Some signals (e.g., synchronization signals, reference signals, beam selection signals, or other control signals) may be sent multiple times by the base station 105 in different directions. For example, the base station 105 may send signals based on different sets of beamforming weights associated with different transmission directions. Transmissions in different beam directions may be used to identify the beam direction (e.g., by a transmitting device such as the base station 105, or by a receiving device such as the UE 115) for later transmission or reception by the base station 105.

[0072] Some signals (e.g., data signals associated with a particular receiving device) may be sent by base station 105 in a single beam direction (e.g., a direction associated with a receiving device, such as UE 115). In some examples, a beam direction associated with transmissions along a single beam direction may be determined based on signals sent in one or more beam directions. For example, UE 115 may receive one or more signals sent by base station 105 in different directions and may report to base station 105 an indication of the signal that UE 115 received with the highest signal quality or other acceptable signal quality.

[0073] In some examples, transmissions by a device (e.g., a base station 105 or a UE 115) can be performed using multiple beam directions, and the device can use a combination of digital precoding or radio frequency beamforming to generate a combined beam for transmission (e.g., from the base station 105 to the UE 115). The UE 115 can report feedback indicating precoding weights for one or more beam directions, and the feedback can correspond to a configured number of beams across the system bandwidth or one or more subbands. The base station 105 can send a reference signal (e.g., a cell-specific reference signal (CRS), CSI-RS) that can be precoded or uncoded. The UE 115 can provide feedback for beam selection, which can be a precoding matrix indicator (PMI) or codebook-based feedback (e.g., a multi-panel codebook, a linear combination codebook, a port selection codebook). Although these techniques are described with reference to signals sent by base station 105 in one or more directions, UE 115 may employ similar techniques to send signals multiple times in different directions (e.g., to identify a beam direction for subsequent transmission or reception by UE 115) or to send signals in a single direction (e.g., to send data to a receiving device).

[0074] When receiving various signals from the base station 105, such as synchronization signals, reference signals, beam selection signals, or other control signals, a receiving device (e.g., UE 115) can try multiple reception configurations (e.g., directional listening). For example, the receiving device can try multiple reception directions by receiving via different antenna subarrays, by processing the received signals according to different antenna subarrays, by receiving according to different reception beamforming weight sets (e.g., different directional listening weight sets) applied to the signals received at multiple antenna elements of the antenna array, or by processing the received signals according to different reception beamforming weight sets applied to the signals received at multiple antenna elements of the antenna array, any of which can be referred to as "listening" according to different reception configurations or reception directions. In some examples, the receiving device can use a single reception configuration to receive along a single beam direction (e.g., when receiving data signals). The single reception configuration can be aligned in a beam direction determined based on listening according to different reception configuration directions (e.g., based on a beam direction determined to have the highest signal strength, the highest signal-to-noise ratio (SNR), or other acceptable signal quality based on listening according to multiple beam directions).

[0075] The wireless communication system 100 can be a packet-based network running according to a layered protocol stack. In the user plane, the communication of the bearer or packet data convergence protocol (PDCP) layer can be based on IP. The radio link control (RLC) layer can perform packet segmentation and reorganization to communicate through logical channels. The media access control (MAC) layer can perform priority processing and multiplex logical channels into transport channels. The MAC layer can also use error detection technology, error correction technology, or both to support retransmission of the MAC layer to improve link efficiency. In the control plane, the radio resource control (RRC) protocol layer can provide the establishment, configuration and maintenance of the RRC connection between the base station 105 or the core network 130 that supports the radio bearer of the user plane data. At the physical layer, the transport channel can be mapped to the physical channel.

[0076] UE 115 and base station 105 can support retransmission of data to increase the possibility of successfully receiving data. Hybrid automatic repeat request (HARQ) feedback is a technology for increasing the possibility of correctly receiving data through communication link 125. HARQ can include a combination of error detection (e.g., using cyclic redundancy check (CRC)), forward error correction (FEC), and retransmission (e.g., automatic repeat request (ARQ)). Under poor radio conditions (e.g., low signal-to-noise ratio conditions), HARQ can improve the throughput of the MAC layer. In some examples, a device can support HARQ feedback for the same time slot, wherein the device can provide HARQ feedback in a specific time slot for data received in the previous symbol in the time slot. In other cases, the device can provide HARQ feedback in subsequent time slots or according to some other time interval.

[0077] UE 115 may identify cell measurements supported by UE 115, such as CSI measurements of dormant SCells in a cell group. UE 115 may receive a DCI that triggers CSI-RS measurements of a set of cells in a cell group, the set of cells including the dormant SCells. UE 115 may perform CSI-RS measurements on one or more cells in the cell set based at least in part on the DCI and in accordance with the cell measurements supported by UE 115 to identify CSI of each of the one or more cells.

[0078] A base station 105 (e.g., a base station 105 configured as a PCell or otherwise associated with a PCell) may identify a cell group configured for a UE 115. The base station 105 may send a DCI to the UE 115, triggering CSI-RS measurements on a set of cells in the cell group, the set of cells including the dormant SCell. The base station 105 may receive a CSI report from the UE 115 indicating CSI of one or more cells in the cell set, the one or more cells including active (e.g., non-dormant) cells of the cell group.

[0079] Figure 2A and Figure 2B Aspects of an example wireless communication system 200 supporting CSI-RS triggering when SCell sleep is configured according to aspects of the present disclosure are shown. In some examples, the wireless communication system 200 can implement multiple aspects of the wireless communication system 100. The wireless communication system 200 may include a cell 205, a cell 210, a cell 215, a cell 220, and a UE 225, which may be examples of corresponding devices described herein. In some aspects, the cell 205, the cell 210, the cell 215, and the cell 220 may be defined as a cell group configured by the UE 225, or otherwise associated therewith. The cell 205 may be a PCell of the cell group, and the cell 210, the cell 215, and the cell 220 may be a SCell of the cell group. The cell 205, the cell 210, and the cell 215 may be in a non-sleep mode, and the cell 220 may be in a sleep mode. Figure 2A An example wireless communication system 200-a is generally shown, and Figure 2B An example of CSI reporting triggering DCI that can be implemented in a wireless communication system is generally shown.

[0080] Reference Figure 2AAs described above, UE 225 may be configured with a cell group to support CA operation, or any operation in which UE 225 communicates with multiple cells on a corresponding carrier. CA operation may include UE 225 wirelessly communicating with one or more cells within a cell group on a corresponding carrier. For example, UE 225 may perform wireless communication with cell 205 on CC0, cell 210 on CC1, cell 215 on CC2, and / or cell 220 on CC3 (e.g., when cell 220 is in an active state and non-sleep mode). Cell 205 may be configured as a PCell within a cell group, which may schedule communications with UE 225 and / or communications between UE 225 and / or SCells in a cell group. Cell 210, cell 215, and / or cell 220 may be configured as cells within a cell group. Cell 210, cell 215, and / or cell 220 may schedule communications with UE 225 and / or communications between UE 225 and / or other SCells and / or PCells in a cell group.

[0081] To support such wireless communications, UE 225 may implement various channel performance measurement and reporting techniques. For example, UE 225 may measure various reference signals and / or other transmissions from cells within a cell group, and report the information to cell 205 (e.g., PCell) and / or other cells within the cell group. For example, for each carrier associated with a cell within a cell group, UE 225 may determine reference signal received power (RSRP), reference signal strength indicator (RSSI), CSI, channel quality information (CQI), throughput, interference level, etc. Examples of such reference signals measured by UE 225 include, but are not limited to, CSI-RS, CSI-IM, synchronization signals, broadcast signals, tracking reference signals, beam management reference signals, etc. UE 225 may send a measurement report to cell 205 that carries or otherwise conveys an indication of the measured channel performance measurement results, and cell 205 may use the information for link optimization and mobility or scheduling decisions. In some aspects, the cell 205 may trigger reference signals on other cells within the cell group for measurement and reporting by the UE 225 (eg, cross-carrier triggering of aperiodic CSI (A-CSI) using DCI conveyed on the PDCCH in a CA scenario).

[0082] In some aspects, the network may configure one or more active cells in the cell group (e.g., SCells in the CA group) as dormant cells. A dormant cell may be associated with a low power consumption state in which the UE 225 supports lower activity operation of the dormant cell(s), such as no PDCCH and / or PDSCH reception, no A-CSI-RS reception, no PUCCH and / or PUSCH transmission, etc. Therefore, when a cell within the cell group is in dormant mode, it may not be desirable for the UE 225 to perform reference signal measurements and reports (e.g., A-CSI measurements and reports) on the carriers of the cell.

[0083] refer to Figure 2B , typically, activation of reference signal resources for measurement by UE 225 may be based on a triggering DCI, such as triggering DCI 230. For example, cell 205 may send or transmit triggering DCI 230 to UE 225. In some aspects, triggering DCI 230 may trigger CSI-RS measurement of a set of cells in a cell group (e.g., some or all cells in a cell group). For example, triggering DCI 230 may be a CRC scrambled by C-RNTI, and may use various formats (e.g., DCI format 0_1, DCI format 1_1, or other formats, DCI format 0_1 ​​is shown only as an example). Triggering DCI 230 may include a CSI request-triggering status information element (IE) mapping 245, which may be updated by a MAC CE. For example, triggering DCI 230 may include a serving cell configuration IE 240 (e.g., ServingCellConfig0) with a corresponding CSI measurement configuration IE 250 (e.g., CSI-MeasConfig0).

[0084] In some aspects, each CSI measurement configuration IE 250 may have a corresponding CSI aperiodic trigger state 255 (e.g., CSI-AperiodicTriggerState0.0 or CSI-AperiodicTriggerState0.1), indicating up to 127 CSI aperiodic trigger states 225. Each CSI aperiodic trigger state 255 may have one or more corresponding CSI associated report configurations 260 (e.g., CSI-AssociatedReportConfiginfo0.0.0 and CSI-AssociatedReportConfiginfo0.0.1 for CSI-AperiodicTriggerState 0.0, CSI-AssociatedReportConfiginfo0.1.0 and CSI-AssociatedReportConfiginfo0.1.1 for CSI-AperiodicTriggerState 0.1, etc.). Each CSI-associated reporting configuration 260 can be linked to 48 CSI reporting configurations 265 (e.g., CSI-ReportConfig0.0, CSI-ReportConfig0.1, ..., CSI-ReportConfig0.47). Therefore, the serving cell can be configured with up to 48 CSI reporting configurations 265 and up to 128 aperiodic CSI triggering states 255. Each aperiodic CSI triggering state 255 can be linked to up to 16 CSI reporting configurations 265.

[0085] Reference again Figure 2B As described above, the trigger DCI 230 may have a corresponding format for triggering an aperiodic CSI measurement report, such as DCI format 0_1, DCI format 1_1, or other formats. For example, the trigger DCI 230 may include a CSI request field 240 that selects or otherwise selects an aperiodic CSI trigger state 255. The CSI request field 240 may span six bits (e.g., 2 6 =64 code points), code point 0 corresponds to no aperiodic CSI. For example, the mapping between code points and aperiodic CSI triggering states 255 may be configured using a MAC CE from the cell 205.

[0086] For cross-carrier aperiodic CSI reporting, the trigger DCI 230 may indicate a CSI request as well as CSI-RS / CSI-IM resources (e.g., time / frequency / space / code resources for sending reference signals to be measured by the UE 225) and PUSCH resources on which the CSI report is to be received. In some aspects, CSI reports may be received for different CCs. Thus, the CSI request may be conveyed in the trigger DCI 230 sent on the scheduling CC. The trigger DCI 230 may include a "carrier indicator" field indicating which uplink carrier sends the PUSCH (e.g., CSI report), and a "carrier" field in each CSI reporting configuration indicating which downlink carrier the corresponding CSI report is for (e.g., indicating which downlink carrier the UE 225 is to measure and report, such as CC0, CC1, CC2, and / or CC3). Thus, processing of CSI resources on multiple downlink carriers may be triggered by a CSI request in the same DCI. That is, in some examples, triggered DCI 230 may include a separate CSI request for each triggered carrier.

[0087] However, in some cases, one or more cells in a cell group may be in dormant mode. Figure 2A In the non-limiting example shown, this may include the battery 220 being in sleep mode. However, since the UE 225 may not support CSI measurement reporting of cell(s) in sleep mode, this may cause problems when the triggering DCI 230 includes a CSI request associated with a carrier of a sleep cell. Figure 2A In the non-limiting example shown, this may include triggering DCI 230 that includes CSI requests corresponding to CC1 of cell 210, CC2 of cell 215, and CC3 of cell 220 (i.e., dormant SCells in this example). UE 225 may not support aperiodic CSI reporting for dormant SCells. This results in undefined behavior of UE 225 when an aperiodic CSI triggering DCI (e.g., triggering DCI 230) indicates a CSI report configuration (CSI-ReportConfig) with a "carrier" field associated with a dormant SCell, which may occur.

[0088] Thus, aspects of the described techniques provide various mechanisms that can be implemented in the wireless communication system 200 to address issues when a CSI report configuration includes a "carrier" field associated with a dormant SCell (e.g., triggering DCI 230 includes a CSI-ReportConfig with a "carrier" field associated with CC3). For example, the UE 225 can identify or otherwise determine the cell measurements supported by the UE 225. In general, the cell measurements supported by the UE 225 can be associated with the UE 225 that supports CSI measurements of dormant SCells in a cell group. In some aspects, this can include the UE 225 determining that the cell measurements it supports do not support measurements of dormant SCells within the cell group. The UE 225 can receive a triggering measurement of a set of cells in the cell group (e.g., in Figure 2A 210, cell 215, and cell 220 in the example shown. Thus, the set of cells triggered by the triggering DCI 230 may include a dormant SCell (e.g., cell 220). Depending on the cell measurements supported by UE 225, UE 225 may perform CSI-RS measurements on one or more cells in the set of cells. In this first option, this may include UE 225 discarding the triggering DCI 230 based on the triggering of (multiple) dormant cells within the cell group. Thus, in this first option, UE 225 may suppress identifying the CSI of each of the one or more cells based on the CSI-RS measurement (e.g., ignoring the triggering DCI).

[0089] Thus, the UE 225 may be configured such that it does not expect the network to send an aperiodic CSI triggering DCI (e.g., using DCI format 0_1, DCI format 1_1, other formats) indicating a CSI report configuration (e.g., CSI-ReportConfig) with a "carrier" field associated with a dormant SCell. In some aspects, the UE 225 performing CSI measurements based on the cell measurements supported by the UE 225 may include the UE 225 not performing (e.g., suppressing performing or discarding the DCI) CSI-RS measurements based on the DCI that triggers CSI measurements on the dormant SCell. That is, if the UE 225 receives a DCI that triggers an aperiodic CSI report for any dormant SCell, the UE 225 may discard the DCI. Thus, based on the DCI 230 that triggers the indication of a dormant SCell, the UE 225 may suppress performing CSI-RS measurements on cells (e.g., any cell) in the cell group.

[0090] Figure 3An example of a carrier configuration 300 that supports CSI-RS triggering when SCell dormancy is configured according to various aspects of the present disclosure is shown. In some examples, the carrier configuration 300 can implement aspects of the wireless communication system 100 and / or 200. Various aspects of the carrier configuration 300 can be implemented by or at a UE and / or a base station (e.g., when the base station acts as a cell within a cell group or is otherwise associated with a cell within a cell group), which can be examples of corresponding devices described herein.

[0091] As described above, aspects of the described technology provide a mechanism that enables a UE to perform CSI-RS measurements on one or more cells in a set of cells triggered by a DCI based on the cell measurements it supports. That is, a DCI may trigger CSI-RS measurements for a set of cells in a cell group configured for the UE, where at least one cell in the cell group is in a dormant mode. For example, the DCI may carry or convey a CSI report configuration having a "carrier" field associated with a dormant SCell in the cell group. In reference to Figure 2A In the first option discussed, the UE may discard the DCI and refrain from performing CSI-RS measurements based on the DCI that triggers aperiodic CSI-RS measurements on the dormant SCell. That is, in the first option, the UE may not perform CSI-RS measurements on any cell in the cell group triggered by the DCI.

[0092] Therefore, the UE may treat the reception of a triggering DCI with a CSI reporting configuration having a carrier field associated with a dormant SCell as an error case and thus ignore or discard the DCI. That is, if the UE receives a DCI that triggers CSI reporting for any dormant SCell, the UE simply discards the DCI. In general, when some cells in a cell group are dormant, the reference Figure 2A The first option discussed. This may affect the configurability of non-periodic CSI reporting. That is, the "Carrier" field in the CSI report configuration indicates which downlink carrier the CSI report is targeted for (e.g., which carrier to measure and report, including at least one carrier associated with a dormant SCell). For N cells in a cell group configured for a UE (e.g., PCell+SCell(s)), there may be at least M=2 cells in the cell group configured for the UE (e.g., PCell+SCell(s)), depending on whether each SCell is triggered. N-1(e.g., 32768 when N=16) combinations of CSI aperiodic trigger states (e.g., CSI-AperiodicTriggerState). In some wireless communication systems, the maximum number of supported combinations is only 128, which is a rather small subset of all available combinations. For example, the network can select a subset downward from M by considering the frequency bandwidth relationship between carriers (e.g., intra-frequency / inter-frequency). However, when SCell dormancy is configured, the number of CSI aperiodic trigger states may increase due to some cells being in dormant mode (e.g., if reference is used). Figure 2A The first option discussed). In this case, a maximum of 128 may become inefficient.

[0093] The carrier configuration 300 shows that when some SCells are dormant, according to the reference Figure 2A The first option discussed, an example of how the number of combinations can be extended. For example, a cell group configured for a UE may include a PCell associated with CC 305 (e.g., CC0), an SCell associated with CC 310 (e.g., CC1), an SCell associated with CC 315 (e.g., CC2), and an SCell associated with CC 320 (e.g., CC 3). Carrier configuration 300 shows four non-limiting examples of different carrier combinations when one or more SCells in a cell group are dormant.

[0094] For example, in the first configuration shown in the top row, no dormancy is configured for any cell in the cell group. That is, when each cell triggered by the DCI is in non-sleep mode, one CSI non-periodic triggering state may include cells (e.g., CC0, CC1, CC2, CC3). If the network is not allowed to include the CSI non-periodic reporting configuration of any dormant SCell in the triggered DCI, depending on how many SCells are configured as dormant, the network may configure at least four different CSI non-periodic triggering states, each indicating a reporting configuration for non-sleep SCells only. Changes in SCell dormancy over time may include additional triggering states being configured.

[0095] For example, in the second configuration shown in the second row, the SCell associated with CC1 is in sleep mode. In the third configuration shown in the third row, the SCells associated with CC1 and CC2 are in sleep mode. In the fourth configuration shown in the bottom row, the SCells associated with CC1, CC2, and CC3 are all in sleep mode. In some aspects, this can also be applied to MAC CE mapping of up to 64 code points from up to 128 configured trigger states to the "CSI Request" field of the non-periodic CSI trigger DCI.

[0096] In some wireless communication systems, when the SCell switches between dormant and non-dormant, the network can reconfigure up to 128 trigger states using RRC messages and / or remap 64 configured trigger states to DCI "CSI request" code points. However, this may not work in every case, because dormant switching may be based on DCI, which is much faster than RRC configuration or MAC CE signaling, and thus may occur more frequently to follow traffic pattern changes.

[0097] Therefore, another option (e.g., a second option) may include the UE expecting that the network may send a non-periodic CSI triggering DCI (e.g., DCI format 0_1, DCI format 1_1, or other format) indicating a CSI reporting configuration (e.g., CSI-ReportConfig) having a "carrier" field associated with the dormant SCell. In this second option, the UE may ignore the CSI reporting configuration including the "carrier" field associated with the dormant SCell, and instead perform CSI measurements and reports for other cells triggered by the DCI. For example, the UE may identify the CSI reporting configuration associated with the dormant SCell, and, at least in some aspects, based on the DCI that triggers the CSI-RS measurement on the dormant SCell, suppress the CSI-RS measurement indicated in the CSI reporting configuration. In some examples, the UE may perform CSI measurements and reports based on the CSI reporting configuration associated with (multiple) non-dormant cells in the cell group identified in the triggering DCI. That is, in this second option, the UE may discard any CSI reporting configuration including the dormant SCell in the triggered DCI, and instead perform measurement and reporting of the CSI reporting configuration including (multiple) non-dormant SCells in the cell group in the triggered DCI. Therefore, this second option allows the UE to receive a triggered DCI including (multiple) CSI reporting configurations for dormant SCells.

[0098] A third option may include that the UE does not expect the network to send an aperiodic CSI trigger DCI (e.g., using DCI format 0_1, DCI format 1_1, or other format), the aperiodic CSI trigger indicating a CSI reporting configuration (e.g., CSI-ReportConfig) having a "carrier" field associated with the dormant SCell for each CSI reporting configuration indicated by the DCI. That is, in the second option discussed above, the UE may discard the CSI reporting configuration that identifies (multiple) dormant SCells in the triggering DCI. In some cases, when each CSI reporting configuration identifies a dormant SCell, the method may cause the UE to discard all CSI reporting configurations indicated in the triggering DCI. In this third option, the triggering DCI will be expected to have at least one CSI reporting configuration that only identifies (multiple) non-dormant SCells within the cell group. Therefore, the UE can identify or determine the CSI reporting configuration associated with the non-dormant SCells in the cell group, and accordingly perform CSI-RS measurements on the (multiple) cells associated with the CSI reporting configuration.

[0099] In some aspects, the first option and / or the second option described above may be applied based on the number of SCells in the cell group configured for the UE and / or based on the number of active SCells in the cell group configured for the UE. For example, if the number of cells configured in the cell group is small, the UE may adopt the reference Figure 2A The first option discussed above does not lose configurability. However, due to the unnecessary large number of trigger states indicated by the CSI request field, efficiency can be improved by discarding fewer DCIs. Therefore, a variation may include in reference Figure 2A The first option discussed and / or referenced above Figure 3 The adaptive selection between the second options discussed. For example, if the number of active cells configured in the cell group is less than or equal to a threshold (e.g., 6), the UE may adopt the first option and discard the DCI. A non-limiting example of a threshold of 6 may assume that 7 cells in the cell group (e.g., PCell+6 SCells) may have a maximum of 128 combinations. Therefore, the UE may determine that the number of active cells in the cell group is less than the threshold, and in response, refrain from performing CSI-RS measurements (e.g., the DCI may be discarded).

[0100] Additionally or alternatively, another variation may include that the number of SCells configured in the cell group is less than or equal to a threshold value (e.g., 6), the UE may adopt the first option and discard the DCI. However, if the UE determines that the number of active SCells configured in the cell group and / or the number of SCells configured in the cell group is less than the corresponding threshold value, the UE may adopt the second option discussed above and suppress the CSI-RS measurement identified in the CSI reporting configuration based on the DCI triggering the CSI measurement of the dormant SCell.

[0101] It should be understood that the above discussion of specific DCI formats is non-limiting. That is, the described techniques are not limited to specific DCI formats, such as DCI format 0_1, DCI format 1_1. However, these techniques can be implemented for any DCI format used for non-periodic CSI triggering (e.g., downlink scheduling DCI format 1_1). Therefore, the DCI that triggers CSI-RS measurement of the cell group may include a downlink grant and / or an uplink grant that triggers CSI-RS measurement.

[0102] Figure 4 An example of a process 400 for supporting CSI-RS triggering when SCell sleep is configured according to various aspects of the present disclosure is shown. In some examples, the process 400 can implement multiple aspects of the wireless communication system 100 and / or 200 and / or the carrier configuration 300. Various aspects of the process 400 can be implemented by or on a UE 405, a PCell 410, a SCell 415, and / or a SCell 420, which can be examples of corresponding devices described herein. In some aspects, the PCell 410, the SCell 410, and the SCell 415 can define or otherwise be associated with a cell group configured for the UE 405. In some aspects, the SCell 420 can be in an active mode (e.g., a non-sleep mode) and the SCell 415 can be in a sleep mode.

[0103] At 425, the PCell 410 may identify or otherwise determine the cell group configured for the UE 405. For example, the PCell 410 may send or otherwise communicate a configuration signal (eg, an RRC signal) to the UE 405 configuring the cell group.

[0104] At 430, PCell 410 may send (and UE 405 may receive) a DCI that triggers CSI-RS measurements for a set of cells in a cell group. Typically, the set of cells may include one, some, or all of the cells configured for the cell group. In some aspects, the triggering DCI may include one or more CSI reporting configurations, each CSI reporting configuration identifying one or more SCells in the cell group. In the example shown in process 400, the triggering DCI may include a CSI reporting configuration that identifies PCell 410 and / or SCell 415 (in sleep mode in this example) and SCell 420 as the set of cells for which UE 405 performs CSI measurements and reporting.

[0105] Therefore, at 435, UE 405 may perform CSI-RS measurement on one or more cells in the cell set to identify CSI of each of the one or more cells according to the cell measurement supported by UE 405. For example, the trigger DCI may identify resources (e.g., CSI-RS and / or CSI-IM resources) of the carrier(s) associated with each trigger cell identified in the CSI reporting configuration.

[0106] In some aspects, performing CSI-RS measurements may be based on cell measurements supported by UE 405. For example, the first option (see above) Figure 2A ) may include UE 405 discarding the DCI and, based on the DCI triggering the CSI-RS measurement on the dormant SCell (e.g., SCell 415), refraining from performing CSI-RS measurements on any cell in the cell set. Figure 3 In the third option (also referred to above), UE 405 may discard the CSI reporting configurations indicated in the triggering DCI (e.g., suppress CSI-RS measurements on the cell(s) identified in those CSI reporting configurations), but may perform CSI-RS measurements on the active cell(s) identified in the other CSI reporting configurations. That is, UE 405 may discard any CSI reporting configurations in the DCI that identify dormant cells. In the third option (also referred to above), UE 405 may discard the CSI reporting configurations indicated in the triggering DCI (e.g., suppress CSI-RS measurements on the cell(s) identified in those CSI reporting configurations), but may perform CSI-RS measurements on the active cell(s) identified in the other CSI reporting configurations. Figure 3 ), UE 405 may expect that at least one CSI reporting configuration indicated in the triggering DCI is associated with an active SCell in the cell group. That is, UE 405 may identify at least one CSI reporting configuration associated with (multiple) non-dormant SCells and perform CSI-RS measurements on (multiple) cells associated with the at least one CSI reporting configuration.

[0107] In some aspects, based on the number of cells configured in the cell group and / or based on the number of active cells in the cell group, the UE 405 may adopt the first option or the second option. For example, if the UE 405 determines that the number of SCells configured in the cell group and / or the number of active SCells is less than a threshold, the UE 405 may adopt option one and discard the triggering DCI. Conversely, if the UE 405 determines that the number of SCells configured in the cell group and / or the number of active SCells meets the threshold, the UE 405 may adopt option two and discard the CSI report configuration identifying the dormant SCell in the DCI.

[0108] Thus, at 440, UE 405 may send (and PCell 410 may receive) a CSI report indicating CSI of one or more cells in a cell set (e.g., active cell(s) in a cell group). For example, for an active cell, the CSI report may indicate RSRP, RSSI, CQI, CSI, interference information, etc., of the corresponding carrier.

[0109] Figure 5 A block diagram 500 of a device 505 supporting CSI-RS triggering when SCell dormancy is configured according to aspects of the present disclosure is shown. The device 505 may be an example of aspects of the UE 115 as described herein. The device 505 may include a receiver 510, a communication manager 515, and a transmitter 520. The device 505 may also include a processor. Each of these components may communicate with each other (e.g., via one or more buses).

[0110] The receiver 510 may receive information associated with various information channels (e.g., a control channel, a data channel, or information related to a CSI-RS that triggers SCell sleep), such as packets, user data, or control information. The information may be delivered to other components of the device 505. The receiver 510 may be a reference Figure 8 Examples of aspects of transceiver 820 are described. Receiver 510 may utilize a single antenna or a collection of antennas.

[0111] The communication manager 515 may identify a cell measurement supported by the UE, the cell measurement being associated with a UE supporting CSI measurement of a dormant SCell in a cell group, receive a DCI triggering CSI-RS measurement for a set of cells in the cell group, the set of cells including the dormant SCell, and based on the DCI, perform CSI-RS measurement on one or more cells in the set of cells according to the cell measurement supported by the UE to identify CSI of each of the one or more cells. The communication manager 515 may be an example of aspects of the communication manager 810 described herein.

[0112] The communication manager 515 or its subcomponents may be implemented in hardware, in code (e.g., software or firmware) executed by a processor, or any combination thereof. If implemented in code executed by a processor, the functions of the communication manager 515 or its subcomponents may be performed by a general purpose processor, a digital signal processor (DSP), an application specific integrated circuit (ASIC), a field programmable gate array (FPGA) or other programmable logic device, discrete gate or transistor logic, discrete hardware components, or any combination thereof designed to perform the functions described in the present disclosure.

[0113] The communication manager 515 or its subcomponents can be physically located in various locations, including being distributed so that part of the functionality is implemented by one or more physical components at different physical locations. In some examples, according to aspects of the present disclosure, the communication manager 515 or its subcomponents can be separate and distinct components. In some examples, according to aspects of the present disclosure, the communication manager 515 or its subcomponents can be combined with one or more other hardware components, including but not limited to input / output (I / O) components, transceivers, network servers, another computing device, one or more other components described in the present disclosure, or a combination thereof.

[0114] Transmitter 520 can transmit signals generated by other components of device 505. In some examples, transmitter 520 can be co-located with receiver 510 in a transceiver module. For example, transmitter 520 can be a reference Figure 8 Examples of aspects of the transceiver 820 are described. The transmitter 520 may utilize a single antenna or a collection of antennas.

[0115] Figure 6 A block diagram 600 of a device 605 supporting CSI-RS triggering when SCell dormancy is configured according to aspects of the present disclosure is shown. The device 605 may be an example of aspects of the device 505 or UE 115 as described herein. The device 605 may include a receiver 610, a communication manager 615, and a transmitter 635. The device 605 may also include a processor. Each of these components may communicate with each other (e.g., via one or more buses).

[0116] The receiver 610 may receive information associated with various information channels (e.g., a control channel, a data channel, or information related to a CSI-RS that triggers SCell sleep), such as packets, user data, or control information. The information may be delivered to other components of the device 605. The receiver 610 may be a reference Figure 8 Examples of aspects of transceiver 820 are described. Receiver 610 may utilize a single antenna or a collection of antennas.

[0117] The communication manager 615 may be an example of aspects of the communication manager 515 as described herein. The communication manager 615 may include a cell measurement manager 620, a trigger manager 625, and a CSI-RS manager 630. The communication manager 615 may be an example of aspects of the communication manager 810 described herein.

[0118] The cell measurement manager 620 may identify cell measurements supported by the UE, which are associated with UEs supporting CSI measurements of dormant SCells in a cell group.

[0119] The trigger manager 625 may receive a DCI triggering CSI-RS measurement of a set of cells in a cell group, the set of cells including the dormant SCells.

[0120] The CSI-RS manager 630 may perform CSI-RS measurement on one or more cells in the cell set according to cell measurement supported by the UE based on the DCI to identify CSI of each of the one or more cells.

[0121] The transmitter 635 can transmit signals generated by other components of the device 605. In some examples, the transmitter 635 can be collocated with the receiver 610 in the transceiver module. For example, the transmitter 635 can be a reference Figure 8 Examples of aspects of the transceiver 820 are described. The transmitter 635 may utilize a single antenna or a collection of antennas.

[0122] Figure 7 A block diagram 700 of a communication manager 705 supporting CSI-RS triggering when SCell dormancy is configured according to aspects of the present disclosure is shown. The communication manager 705 may be an example of aspects of the communication manager 515, the communication manager 615, or the communication manager 810 described herein. The communication manager 705 may include a cell measurement manager 710, a trigger manager 715, a CSI-RS manager 720, a DCI discard manager 725, a CSI report configuration manager 730, an active cell manager 735, and a CSI report manager 740. Each of these modules may communicate with each other directly or indirectly (e.g., via one or more buses).

[0123] The cell measurement manager 710 may identify cell measurements supported by the UE, which are associated with UEs supporting CSI measurements of dormant SCells in a cell group.

[0124] The trigger manager 715 may receive a DCI triggering CSI-RS measurement of a set of cells in a cell group, the set of cells including the dormant SCell. In some cases, the DCI includes a downlink grant triggering CSI-RS measurement or an uplink grant triggering CSI-RS measurement.

[0125] The CSI-RS manager 720 may perform CSI-RS measurement on one or more cells in the cell set according to cell measurement supported by the UE based on the DCI to identify CSI of each of the one or more cells.

[0126] The DCI discard manager 725 may determine that the DCI includes at least one CSI reporting configuration associated with a dormant SCell. In some examples, the DCI discard manager 725 may discard the DCI based on the DCI triggering CSI measurement on the dormant SCell and suppress CSI-RS measurement on the cells in the cell set. In some examples, the DCI discard manager 725 may determine that the number of active cells in the cell group is less than a threshold. In some examples, the DCI discard manager 725 may discard the DCI and suppress CSI-RS measurement based on the number of active cells being less than a threshold and the DCI triggering CSI-RS measurement on the dormant SCell.

[0127] In some examples, the DCI discard manager 725 may determine that the number of cells in the cell group is less than a threshold. In some examples, the DCI discard manager 725 may discard the DCI and refrain from performing CSI-RS measurements based on the number of cells being less than a threshold and the DCI triggering CSI-RS measurements on dormant SCells.

[0128] The CSI report configuration manager 730 may determine that at least one CSI report configuration identified in the DCI is associated with a dormant SCell. In some examples, the CSI report configuration manager 730 may suppress CSI-RS measurements on cells in a set of cells identified in at least one CSI report configuration associated with a dormant cell based on a DCI that triggers CSI measurements on a dormant SCell. In some examples, the CSI report configuration manager 730 may perform CSI-RS measurements on cells in a set of cells identified in one or more other CSI report configurations associated with a non-dormant cell based on a DCI that triggers CSI measurements on a dormant SCell.

[0129] In some examples, the CSI report configuration manager 730 may determine that the number of active cells in the cell group meets a threshold. In some examples, the CSI report configuration manager 730 may perform CSI-RS measurements on cells in a set of cells identified in one or more other CSI reporting configurations associated with a non-dormant cell based on the number of active cells meeting the threshold and the DCI triggering CSI-RS measurements on the dormant SCell.

[0130] In some examples, the CSI report configuration manager 730 may determine that the number of cells in the cell group meets a threshold. In some examples, the CSI report configuration manager 730 may perform CSI-RS measurements identified on cells in a set of cells identified in one or more other CSI reporting configurations associated with a non-dormant cell based on the number of cells meeting the threshold and the DCI triggering the CSI-RS measurement on the dormant SCell.

[0131] The active cell manager 735 may identify that at least one CSI reporting configuration identified in the DCI is associated with a non-dormant cell in the cell group. In some examples, the active cell manager 735 may perform CSI-RS measurements on cells associated with at least one CSI reporting configuration associated with the non-dormant SCell based on the CSI reporting configuration associated with the non-dormant SCell and the DCI that triggers CSI measurement on the dormant SCell.

[0132] The CSI reporting manager 740 may send a CSI report indicating CSI of one or more cells in a set of cells, wherein the CSI report indicates CSI of active cells in the cell group.

[0133] Figure 8 A diagram of a system 800 including a device 805 that supports CSI-RS triggering when SCell sleep is configured according to various aspects of the present disclosure is shown. The device 805 may be an example of or include components of a device 505, a device 605, or a UE 115 as described herein. The device 805 may include components for two-way voice and data communications, including components for sending and receiving communications, including a communication manager 810, an I / O controller 815, a transceiver 820, an antenna 825, a memory 830, and a processor 840. These components may communicate electronically via one or more buses (e.g., a bus 845).

[0134] The communication manager 810 can identify a cell measurement supported by the UE, which is associated with a UE supporting CSI measurement of a dormant SCell in a cell group, receive a DCI that triggers CSI-RS measurement for a set of cells in the cell group, the set of cells including the dormant SCell, and perform CSI-RS measurement on one or more cells in the set of cells based on the DCI according to the cell measurement supported by the UE to identify the CSI of each of the one or more cells.

[0135] I / O controller 815 can manage input and output signals for device 805. I / O controller 815 can also manage peripheral devices that are not integrated into device 805. In some cases, I / O controller 815 can represent a physical connection or port to an external peripheral device. In some cases, I / O controller 815 can utilize an operating system, such as Or other known operating systems. In other cases, I / O controller 815 can represent or interact with a modem, keyboard, mouse, touch screen, or similar device. In some cases, I / O controller 815 can be implemented as a part of a processor. In some cases, a user can interact with device 805 via I / O controller 815 or via hardware components controlled by I / O controller 815.

[0136] As described above, the transceiver 820 can communicate bidirectionally via one or more antennas, wired or wireless links. For example, the transceiver 820 can represent a wireless transceiver and can communicate bidirectionally with another wireless transceiver. The transceiver 820 can also include a modem to modulate packets and provide the modulated packets to the antenna for transmission, and demodulate the packets received from the antenna.

[0137] In some cases, a wireless device may include a single antenna 825. However, in some cases, a device may have more than one antenna 825 that is capable of sending or receiving multiple wireless transmissions simultaneously.

[0138] The memory 830 may include random access memory (RAM) and read-only memory (ROM). The memory 830 may store computer-readable, computer-executable code 835, including instructions that, when executed, cause the processor to perform the various functions described herein. In some cases, the memory 830 may contain a basic input / output system (BIOS), etc., which may control basic hardware or software operations, such as interaction with peripheral components or devices.

[0139] The processor 840 may include an intelligent hardware device (e.g., a general-purpose processor, a DSP, a CPU, a microcontroller, an ASIC, an FPGA, a programmable logic device, a discrete gate or transistor logic component, a discrete hardware component, or any combination thereof). In some cases, the processor 840 may be configured to operate the memory array using a memory controller. In other cases, the memory controller may be integrated into the processor 840. The processor 840 may be configured to execute computer-readable instructions stored in a memory (e.g., memory 830) so that the device 805 performs various functions (e.g., functions or tasks that support CSI-RS triggering for SCell sleep).

[0140] The code 835 may include instructions for implementing various aspects of the present disclosure, including instructions for supporting wireless communications. The code 835 may be stored in a non-transitory computer-readable medium, such as a system memory or other type of memory. In some cases, the code 835 may not be directly executable by the processor 840, but may cause a computer (e.g., when compiled and executed) to perform the functions described herein.

[0141] Fig. 9 A block diagram 900 of a device 905 supporting CSI-RS triggering when SCell dormancy is configured according to various aspects of the present disclosure is shown. The device 905 can be an example of aspects of the base station 105 as described herein. The device 905 may include a receiver 910, a communication manager 915, and a transmitter 920. The device 905 may also include a processor. Each of these components can communicate with each other (e.g., via one or more buses).

[0142] The receiver 910 may receive information associated with various information channels (e.g., a control channel, a data channel, or information related to a CSI-RS that triggers SCell sleep), such as packets, user data, or control information. The information may be delivered to other components of the device 905. The receiver 910 may be a reference Fig.12 Examples of aspects of the transceiver 1220 are described. The receiver 910 may utilize a single antenna or a collection of antennas.

[0143] The communication manager 915 may identify a cell group configured for the UE, send a DCI to the UE to trigger CSI-RS measurement of a set of cells in the cell group, the set of cells including a dormant SCell, and receive from the UE a CSI report indicating CSI of one or more cells in the cell set, the one or more cells including an active cell of the cell group. The communication manager 915 may be an example of various aspects of the communication manager 1210 described herein.

[0144] The communication manager 915 or its subcomponents may be implemented in hardware, in code (e.g., software or firmware) executed by a processor, or any combination thereof. If implemented in code executed by a processor, the functions of the communication manager 915 or its subcomponents may be performed by a general purpose processor, a DSP, an ASIC, 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 in the present disclosure.

[0145] The communication manager 915 or its subcomponents can be physically located in various locations, including being distributed so that portions of the functionality are implemented by one or more physical components at different physical locations. In some examples, according to aspects of the present disclosure, the communication manager 915 or its subcomponents can be separate and distinct components. In some examples, according to aspects of the present disclosure, the communication manager 915 or its subcomponents can be combined with one or more other hardware components, including but not limited to I / O components, transceivers, network servers, another computing device, one or more other components described in the present disclosure, or a combination thereof.

[0146] The transmitter 920 can transmit signals generated by other components of the device 905. In some examples, the transmitter 920 can be co-located with the receiver 910 in a transceiver module. For example, the transmitter 920 can be a reference Fig.12 Examples of various aspects of the transceiver 1220 are described. The transmitter 920 can utilize a single antenna or a collection of antennas.

[0147] Fig.10 A block diagram 1000 of a device 1005 supporting CSI-RS triggering when SCell sleep is configured according to various aspects of the present disclosure is shown. The device 1005 can be an example of aspects of the device 905 or base station 105 as described herein. The device 1005 may include a receiver 1010, a communication manager 1015, and a transmitter 1035. The device 1005 may also include a processor. Each of these components can communicate with each other (e.g., via one or more buses).

[0148] The receiver 1010 may receive information associated with various information channels (e.g., control channels, data channels, and information related to CSI-RS triggering for SCell sleep), such as packets, user data, or control information. The information may be delivered to other components of the device 1005. The receiver 1010 may be a reference Fig.12 Examples of aspects of the transceiver 1220 are described. The receiver 1010 may utilize a single antenna or a collection of antennas.

[0149] The communication manager 1015 may be an example of aspects of the communication manager 915 as described herein. The communication manager 1015 may include a cell group manager 1020, a trigger manager 1025, and a CSI reporting manager 1030. The communication manager 1015 may be an example of aspects of the communication manager 1210 described herein.

[0150] The cell group manager 1020 may identify the cell group configured for the UE.

[0151] The trigger manager 1025 may send a DCI to the UE to trigger CSI-RS measurement on a set of cells in a cell group, the set of cells including the dormant SCell.

[0152] The CSI reporting manager 1030 may receive, from the UE, a CSI report indicating CSI of one or more cells in the set of cells, the one or more cells comprising an active cell of the cell group.

[0153] Transmitter 1035 can transmit signals generated by other components of device 1005. In some examples, transmitter 1035 can be co-located with receiver 1010 in a transceiver module. For example, transmitter 1035 can be a reference Fig.12 Examples of aspects of the transceiver 1220 are described. The transmitter 1035 may utilize a single antenna or a collection of antennas.

[0154] Fig.11 A block diagram 1100 of a communication manager 1105 that supports CSI-RS triggering when SCell dormancy is configured according to aspects of the present disclosure is shown. The communication manager 1105 may be an example of aspects of the communication manager 915, the communication manager 1015, or the communication manager 1210 described herein. The communication manager 1105 may include a cell group manager 1110, a trigger manager 1115, a CSI report manager 1120, and an active cell manager 1125. Each of these modules may communicate with each other directly or indirectly (e.g., via one or more buses).

[0155] The cell group manager 1110 may identify the cell group configured for the UE.

[0156] The trigger manager 1115 may send a DCI to the UE to trigger CSI-RS measurement on a set of cells in a cell group, the set of cells including the dormant SCell.

[0157] The CSI reporting manager 1120 may receive, from the UE, a CSI report indicating CSI of one or more cells in the set of cells, the one or more cells comprising an active cell of the cell group.

[0158] The active cell manager 1125 may receive a CSI report indicating CSI of non-dormant cells in the set of cells associated with the CSI reporting configuration.

[0159] Fig.12A diagram of a system 1200 including a device 1205 that supports CSI-RS triggering when SCell dormancy is configured according to various aspects of the present disclosure is shown. The device 1205 may be an example of, or include components of, the device 905, device 1005, or base station 105 described herein. The device 1205 may include components for two-way voice and data communications, including components for sending and receiving communications, including a communication manager 1210, a network communication manager 1215, a transceiver 1220, an antenna 1225, a memory 1230, a processor 1240, and an inter-station communication manager 1245. These components may be in electronic communication via one or more buses (e.g., bus 1250).

[0160] The communication manager 1210 can identify a cell group configured for the UE, send a DCI to the UE to trigger CSI-RS measurement of a set of cells in the cell group, which includes dormant SCells, and receive a CSI report from the UE indicating the CSI of one or more cells in the cell set, which includes active cells of the cell group.

[0161] The network communications manager 1215 may manage communications with the core network (eg, via one or more wired backhaul links). For example, the network communications manager 1215 may manage the transmission of data communications for client devices (eg, one or more UEs 115).

[0162] As described above, the transceiver 1220 can communicate bidirectionally via one or more antennas, wired or wireless links. For example, the transceiver 1220 can represent a wireless transceiver and can communicate bidirectionally with another wireless transceiver. The transceiver 1220 can also include a modem to modulate packets and provide the modulated packets to the antenna for transmission, and demodulate packets received from the antenna.

[0163] In some cases, a wireless device may include a single antenna 1225. However, in some cases, a device may have more than one antenna 1225 that is capable of sending or receiving multiple wireless transmissions simultaneously.

[0164] Memory 1230 may include RAM, ROM, or a combination thereof. Memory 1230 may store computer readable code 1235 including instructions that, when executed by a processor (e.g., processor 1240), cause the device to perform various functions described herein. In some cases, memory 1230 may include BIOS, etc., which may control basic hardware or software operations, such as interaction with peripheral components or devices.

[0165] Processor 1240 may include an intelligent hardware device (e.g., a general-purpose processor, a DSP, a CPU, a microcontroller, an ASIC, an FPGA, a programmable logic device, a discrete gate or transistor logic component, a discrete hardware component, or any combination thereof). In some cases, processor 1240 may be configured to operate a memory array using a memory controller. In some cases, the memory controller may be integrated into processor 1240. Processor 1240 may be configured to execute computer-readable instructions stored in a memory (e.g., memory 1230) so that device 1205 performs various functions (e.g., functions or tasks that support CSI-RS triggering for SCell sleep).

[0166] The inter-site communication manager 1245 may manage communications with other base stations 105 and may include a controller or scheduler for controlling communications of UE 115 in cooperation with other base stations 105. For example, the inter-site communication manager 1245 may coordinate scheduling of transmissions to UE 115 for various interference mitigation techniques such as beamforming or joint transmission. In some examples, the inter-site communication manager 1245 may provide an X2 interface in an LTE / LTE-A wireless communication network technology to provide communications between base stations 105.

[0167] The code 1235 may include instructions that implement various aspects of the present disclosure, including supporting wireless communications. The code 1235 may be stored in a non-transitory computer-readable medium, such as a system memory or other type of memory. In some cases, the code 1235 may not be directly executable by the processor 1240, but may cause a computer (e.g., when compiled and executed) to perform the functions described herein.

[0168] Fig.13 A flow chart illustrating a method 1300 for supporting CSI-RS triggering when SCell dormancy is configured according to aspects of the present disclosure is shown. The operations of the method 1300 may be implemented by the UE 115 or components thereof described herein. For example, the operations of the method 1300 may be implemented by reference to Figures 5 to 8 In some examples, the UE may execute a set of instructions to control the functional elements of the UE to perform the functions described below. Additionally or alternatively, the UE may use dedicated hardware to perform aspects of the functions described below.

[0169] At 1305, the UE may identify a cell measurement supported by the UE, the cell measurement being associated with a UE supporting CSI measurement of a dormant SCell in a cell group. The operations of 1305 may be performed according to the methods described herein. In some examples, aspects of the operations of 1305 may be described with reference to Figures 5 to 8 The cell measurement manager described above is used to perform the measurement.

[0170] At 1310, the UE may receive a DCI that triggers CSI-RS measurement for a set of cells in a cell group, the set of cells including a dormant SCell. The operations of 1310 may be performed according to the methods described herein. In some examples, aspects of the operations of 1310 may be described with reference to Figures 5 to 8 The described trigger manager is executed.

[0171] At 1315, the UE may perform CSI-RS measurement on one or more cells in the cell set based on the DCI and according to the cell measurement supported by the UE to identify the CSI of each of the one or more cells. The operation of 1315 may be performed according to the method described herein. In some examples, various aspects of the operation of 1315 may be described with reference to Figures 5 to 8 The CSI-RS manager described herein is performed.

[0172] Fig.14 A flow chart illustrating a method 1400 for supporting CSI-RS triggering when SCell dormancy is configured according to aspects of the present disclosure is shown. The operations of the method 1400 may be implemented by the UE 115 or components thereof described herein. For example, the operations of the method 1400 may be implemented by reference to Figures 5 to 8 In some examples, the UE may execute a set of instructions to control the functional elements of the UE to perform the functions described below. Additionally or alternatively, the UE may use dedicated hardware to perform aspects of the functions described below.

[0173] At 1405, the UE may identify a cell measurement supported by the UE, the cell measurement being associated with a UE supporting CSI measurement of a dormant SCell in a cell group. The operations of 1405 may be performed according to the methods described herein. In some examples, aspects of the operations of 1405 may be described with reference to Figures 5 to 8 The cell measurement manager described above is used to perform the measurement.

[0174] At 1410, the UE may receive a DCI triggering CSI-RS measurement for a set of cells in a cell group, the set of cells including a dormant SCell. The operations of 1410 may be performed according to the methods described herein. In some examples, aspects of the operations of 1410 may be described with reference to Figures 5 to 8 The described trigger manager is executed.

[0175] At 1415, the UE may perform CSI-RS measurement on one or more cells in the cell set based on the DCI and according to the cell measurement supported by the UE to identify the CSI of each of the one or more cells. The operation of 1415 may be performed according to the method described herein. In some examples, various aspects of the operation of 1415 may be described with reference to Figures 5 to 8 The CSI-RS manager described herein is performed.

[0176] At 1420, the UE may determine that the DCI includes at least one CSI reporting configuration associated with a dormant SCell. The operations of 1420 may be performed according to the methods described herein. In some examples, aspects of the operations of 1420 may be described with reference to Figures 5 to 8 The DCI discard manager described herein is used to perform the above operations.

[0177] At 1425, the UE may discard the DCI and, based on the DCI that triggers the CSI measurement on the dormant SCell, refrain from performing CSI-RS measurements on cells in the cell set. The operations of 1425 may be performed according to the methods described herein. In some examples, aspects of the operations of 1425 may be described with reference to Figures 5 to 8 The DCI discard manager described herein is used to perform the above operations.

[0178] Fig.15 A flow chart illustrating a method 1500 for supporting CSI-RS triggering when SCell dormancy is configured according to aspects of the present disclosure is shown. The operations of the method 1500 may be implemented by the UE 115 or components thereof as described herein. For example, the operations of the method 1500 may be implemented by reference to Figures 5 to 8 In some examples, the UE may execute a set of instructions to control the functional elements of the UE to perform the functions described below. Additionally or alternatively, the UE may use dedicated hardware to perform aspects of the functions described below.

[0179] At 1505, the UE may identify a cell measurement supported by the UE, the cell measurement being associated with a UE supporting CSI measurement of a dormant SCell in a cell group. The operations of 1505 may be performed according to the methods described herein. In some examples, aspects of the operations of 1505 may be described with reference to Figures 5 to 8 The cell measurement manager described above is used to perform the measurement.

[0180] At 1510, the UE may receive a DCI triggering CSI-RS measurement for a set of cells in a cell group, the set of cells including a dormant SCell. The operations of 1510 may be performed according to the methods described herein. In some examples, aspects of the operations of 1510 may be described with reference to Figures 5 to 8 The described trigger manager is executed.

[0181] At 1515, the UE may perform CSI-RS measurement on one or more cells in the cell set based on the DCI and according to the cell measurement supported by the UE to identify the CSI of each of the one or more cells. The operation of 1515 may be performed according to the method described herein. In some examples, various aspects of the operation of 1515 may be described with reference to Figures 5 to 8 The CSI-RS manager described herein is performed.

[0182] At 1520, the UE may determine that at least one CSI reporting configuration identified in the DCI is associated with a dormant SCell. The operations of 1520 may be performed according to the methods described herein. In some examples, aspects of the operations of 1520 may be described with reference to Figures 5 to 8 The described CSI reporting configuration manager is used to perform.

[0183] At 1525, the UE may, based on the DCI triggering the CSI measurement on the dormant SCell, suppress the CSI-RS measurement on the cells in the set of cells identified in at least one CSI reporting configuration associated with the dormant cell. The operations of 1525 may be performed according to the methods described herein. In some examples, aspects of the operations of 1525 may be described with reference to Figures 5 to 8 The described CSI reporting configuration manager is used to perform.

[0184] At 1530, the UE may perform CSI-RS measurements on cells in a set of cells identified in one or more other CSI reporting configurations associated with a non-dormant cell based on the DCI that triggers CSI measurements on the dormant SCell. The operations of 1530 may be performed according to the methods described herein. In some examples, aspects of the operations of 1530 may be described with reference to Figures 5 to 8 The described CSI reporting configuration manager is used to perform.

[0185] Fig.16 A flow chart illustrating a method 1600 for supporting CSI-RS triggering when SCell dormancy is configured according to aspects of the present disclosure is shown. The operations of the method 1600 may be implemented by the base station 105 or components thereof as described herein. For example, the operations of the method 1600 may be implemented by reference to Figures 9 to 12 In some examples, the base station may execute a set of instructions to control the functional elements of the base station to perform the functions described below. Additionally or alternatively, the base station may use dedicated hardware to perform the functional aspects described below.

[0186] At 1605, the base station may identify a cell group configured for the UE. The operations of 1605 may be performed according to the methods described herein. In some examples, aspects of the operations of 1605 may be described with reference to Figures 9 to 12The cell group manager described is executed.

[0187] At 1610, the base station may send a DCI to the UE to trigger CSI-RS measurement of a set of cells in the cell group, the set of cells including the dormant SCell. The operation of 1610 may be performed according to the method described herein. In some examples, various aspects of the operation of 1610 may be referred to as Figures 9 to 12 Described in the trigger manager to execute.

[0188] At 1615, the base station may receive a CSI report from the UE, the CSI report indicating CSI of one or more cells in the cell set, the one or more cells comprising an active cell of the cell group. The operations of 1615 may be performed according to the methods described herein. In some examples, aspects of the operations of 1615 may be described with reference to Figures 9 to 12 The described CSI reporting manager is used to perform

[0189] It should be noted that the methods described herein describe possible implementations, and that the operations and steps may be rearranged or modified, and other implementations are possible. In addition, aspects of two or more methods may be combined.

[0190] Although aspects of LTE, LTE-A, LTE-A Pro, or NR systems 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 techniques described may be applicable to various other wireless communication systems, such as Ultra Mobile Broadband (UMB), Institute of Electrical and Electronics Engineers (IEEE) 802.11 (Wi-Fi), IEEE 802.16 (WiMAX), IEEE 802.20, Flash-OFDM, and other systems and radio technologies not explicitly mentioned herein.

[0191] The information and signals described herein may be represented using any of a variety of different techniques and methods. For example, data, instructions, commands, information, signals, bits, symbols, and chips cited throughout the specification may be represented by voltages, currents, electromagnetic waves, magnetic fields or particles, optical fields or particles, or any combination thereof.

[0192] The various illustrative blocks and components described in conjunction with the disclosure herein may be implemented or executed with a general purpose processor, a DSP, an ASIC, a CPU, an FPGA or other programmable logic device, discrete gate or transistor logic, discrete hardware components, or any combination thereof designed to perform the functions described herein. A general purpose processor may be a microprocessor, but alternatively, 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, a plurality of microprocessors, a combination of one or more microprocessors with a DSP core, or any other such configuration).

[0193] The functions described herein may be implemented in hardware, software executed by a processor, firmware, or any combination thereof. If implemented in software executed by a processor, the functions may be stored or transmitted as one or more instructions or codes on a computer-readable medium. Other examples and implementations are within the scope of this disclosure and the appended claims. For example, due to the nature of software, the functions described herein may be implemented using software executed by a processor, hardware, firmware, hardwiring, or any combination of these. Features that implement the functions may also be physically located in various locations, including being distributed so that parts of the functions are implemented in different physical locations.

[0194] Computer-readable media include non-temporary computer storage media and communication media, including any media that facilitates the transfer of computer programs from one place to another. Non-temporary storage media can be any available media that can be accessed by a general or special computer. As an example and not limitation, non-temporary computer-readable media may include random access memory (RAM), read-only memory (ROM), electrically erasable programmable ROM (EEPROM), flash memory, compact disk (CD) ROM or other optical disk storage, disk storage or other magnetic storage device, or may be used to carry or store desired program code devices in the form of instructions or data structures and any other non-temporary media that can be accessed by a general or special computer or a general or special processor. Similarly, any connection is properly referred to as a computer-readable medium. For example, if a coaxial cable, fiber optic cable, twisted pair, digital subscriber line (DSL) or wireless technologies such as infrared, radio and microwaves are used to transmit software from a website, server or other remote source, coaxial cable, fiber optic cable, twisted pair, DSL or wireless technologies such as infrared, radio and microwaves are included in the definition of computer-readable media. Disk and disc, as used herein, includes CD, laser disc, optical disc, digital versatile disc (DVD), floppy disk and Blu-ray disc where disks usually reproduce data magnetically, while discs reproduce data optically with lasers. Combinations of the above are also included within the scope of computer-readable media.

[0195] As used herein, including in the claims, “or” used in a list of items (e.g., a list of items preceded by a phrase such as “at least one” or “one or more”) means an inclusive list, so that, for example, a list of at least one of A, B, or C means A or B or C or AB or AC or BC or ABC (i.e., A and B and C). In addition, as used herein, the phrase “based on” should not be construed to refer to a closed set of conditions. For example, an example step described as “based on condition A” can be based on condition A and condition B without departing from the scope of this disclosure. In other words, as used herein, the phrase “based on” should be interpreted in the same manner as the phrase “based at least in part on”

[0196] In the drawings, similar components or features may have the same reference number. In addition, various components of the same type may be distinguished by following the reference number with a dash and a second reference number, the second reference number being used to distinguish similar components. If only the first reference number is used in the specification, the description applies to any one of the similar components having the same first reference number, regardless of the second reference number or other subsequent reference numbers.

[0197] The description set forth herein, in conjunction with the accompanying drawings, describes example configurations and does not represent all examples that may be implemented or within the scope of the claims. The term "example" as used herein means "serving as an example, instance, or illustration," rather than "preferred" or "superior to other examples." The detailed description includes specific details for the purpose of providing an understanding of the described techniques. However, these techniques may be implemented without these specific details. In some cases, known structures and devices are shown in block diagram form to avoid obscuring the concepts of the described examples.

[0198] The description provided here is to enable those of ordinary skill in the art to make or use the present disclosure. Various modifications to the present disclosure will be apparent to those of ordinary skill in the art, and the general principles defined herein may be applied to other variations without departing from the scope of the present disclosure. Therefore, the present disclosure is not limited to the examples and designs described herein, but conforms to the broadest scope consistent with the principles and novel features disclosed herein.

Claims

1. A method for wireless communication at a user equipment (UE), comprising: Identifying a cell measurement supported by the UE, the cell measurement being associated with a UE supporting channel state information measurement of a dormant secondary cell in a cell group; receiving downlink control information triggering channel state information reference signal measurement for a set of cells in the cell group, the set of cells including a dormant secondary cell; Determining that at least one channel state information reporting configuration identified in the downlink control information is associated with the dormant secondary cell; as well as Based at least in part on the downlink control information that triggers the channel state information measurement of the dormant secondary cell, suppressing the channel state information reference signal measurement of one or more cells in the set of cells identified in the at least one channel state information reporting configuration associated with the dormant cell.

2. The method according to claim 1, wherein: Suppressing the performance of channel state information reference signal measurements includes: Based at least in part on the downlink control information triggering the channel state information measurement of the dormant secondary cell, the downlink control information is discarded and channel state information reference signal measurement is refrained from being performed on cells in the set of cells.

3. The method according to claim 2, wherein: Suppressing the performance of channel state information reference signal measurements includes: determining that the number of active cells in the cell group is less than a threshold; and Based at least in part on the number of active cells being less than the threshold and downlink control information triggering channel state information reference signal measurement on a dormant secondary cell, discarding downlink control information and refraining from performing channel state information reference signal measurement.

4. The method according to claim 2, wherein: Suppressing the performance of channel state information reference signal measurements includes: Determining that the number of cells in the cell group is less than a threshold; and Based at least in part on the number of cells being less than the threshold and the downlink control information triggering the channel state information reference signal measurement on the dormant secondary cell, the downlink control information is discarded and the channel state information reference signal measurement is refrained from being performed.

5. The method according to claim 1, wherein: Suppressing the performance of channel state information reference signal measurements includes: Based at least in part on the downlink control information triggering the channel state information measurement of the dormant secondary cell, channel state information reference signal measurement is performed on cells in the set of cells identified in one or more other channel state information reporting configurations associated with the non-dormant cell.

6. The method according to claim 5, wherein: Suppressing the performance of channel state information reference signal measurements includes: determining that the number of active cells in the cell group satisfies a threshold; and Based at least in part on the number of active cells satisfying the threshold and the downlink control information triggering the channel state information reference signal measurement of the dormant secondary cell, channel state information reference signal measurement is performed on the cells in the set of cells identified in the one or more other channel state information reporting configurations associated with the non-dormant cells.

7. The method according to claim 5, wherein: Suppressing the performance of channel state information reference signal measurements includes: Determining that the number of cells in the cell group meets a threshold; and Based at least in part on the number of cells satisfying the threshold and the downlink control information triggering the channel state information reference signal measurement on the dormant secondary cell, perform channel state information reference signal measurement on the cells in the set of cells identified in the one or more other channel state information reporting configurations associated with the non-dormant cell.

8. The method according to claim 1, wherein: Suppressing the performance of channel state information reference signal measurements includes: Identifying that at least one channel state information reporting configuration identified in the downlink control information is associated with a non-dormant secondary cell in the cell group; and Based at least in part on the at least one channel state information reporting configuration associated with the non-dormant secondary cell and the downlink control information that triggers the channel state information measurement on the dormant secondary cell, channel state information reference signal measurement is performed on the cell associated with the at least one channel state information reporting configuration associated with the non-dormant cell.

9. The method according to claim 1, wherein: The downlink control information includes a downlink grant triggering a channel state information reference signal measurement or an uplink grant triggering a channel state information reference signal measurement.

10. The method according to claim 1, further comprising: A channel state information report is sent indicating channel state information of the one or more cells in the set of cells, wherein the channel state information report indicates channel state information of active cells in the set of cells.

11. A method for wireless communication at a primary cell, comprising: Identify a cell group configured for a user equipment (UE); Sending downlink control information to the UE for triggering channel state information reference signal measurement of a set of cells in the cell group, the set of cells including a dormant secondary cell, wherein at least one channel state information reporting configuration identified in the downlink control information is associated with the dormant secondary cell; as well as A channel state information report is received from a UE indicating channel state information of one or more cells in the set of cells, the one or more cells comprising an active cell of the group of cells.

12. The method according to claim 11, wherein: The receiving channel status information report includes: A channel state information report is received, where the channel state information report indicates channel state information of a non-dormant cell in the cell set that is associated with a channel state information report configuration.

13. An apparatus for wireless communication at a user equipment (UE), comprising: processor, a memory coupled to the processor; as well as Instructions stored in the memory and executable by the processor to cause the device to: Identifying a cell measurement supported by the UE, the cell measurement being associated with a UE supporting channel state information measurement of a dormant secondary cell in a cell group; receiving downlink control information triggering channel state information reference signal measurement for a set of cells in the cell group, the set of cells including a dormant secondary cell; Determining that at least one channel state information reporting configuration identified in the downlink control information is associated with the dormant secondary cell; as well as Based at least in part on the downlink control information that triggers the channel state information measurement of the dormant secondary cell, suppressing the channel state information reference signal measurement of one or more cells in the set of cells identified in the at least one channel state information reporting configuration associated with the dormant cell.

14. The device according to claim 13, wherein: Suppressing the performance of channel state information reference signal measurements includes: Based at least in part on the downlink control information triggering the channel state information measurement of the dormant secondary cell, the downlink control information is discarded and channel state information reference signal measurement is refrained from being performed on cells in the set of cells.

15. The device according to claim 14, wherein: Suppressing the performance of channel state information reference signal measurements includes: determining that the number of active cells in the cell group is less than a threshold; and Based at least in part on the number of active cells being less than the threshold and downlink control information triggering channel state information reference signal measurement on a dormant secondary cell, discarding downlink control information and refraining from performing channel state information reference signal measurement.

16. The device according to claim 14, wherein: Suppressing the performance of channel state information reference signal measurements includes: Determining that the number of cells in the cell group is less than a threshold; and Based at least in part on the number of cells being less than the threshold and the downlink control information triggering the channel state information reference signal measurement on the dormant secondary cell, the downlink control information is discarded and the channel state information reference signal measurement is refrained from being performed.

17. The device according to claim 13, wherein: Suppressing the performance of channel state information reference signal measurements includes: Based at least in part on the downlink control information triggering the channel state information measurement of the dormant secondary cell, channel state information reference signal measurement is performed on cells in the set of cells identified in one or more other channel state information reporting configurations associated with the non-dormant cell.

18. The device according to claim 17, wherein: Suppressing the performance of channel state information reference signal measurements includes: determining that the number of active cells in the cell group satisfies a threshold; and Based at least in part on the number of active cells satisfying the threshold and the downlink control information triggering the channel state information reference signal measurement of the dormant secondary cell, channel state information reference signal measurement is performed on the cells in the set of cells identified in the one or more other channel state information reporting configurations associated with the non-dormant cells.

19. The device according to claim 17, wherein: Suppressing the performance of channel state information reference signal measurements includes: Determining that the number of cells in the cell group meets a threshold; and Based at least in part on the number of cells satisfying the threshold and the downlink control information triggering the channel state information reference signal measurement on the dormant secondary cell, perform channel state information reference signal measurement on the cells in the set of cells identified in the one or more other channel state information reporting configurations associated with the non-dormant cell.

20. The device according to claim 13, wherein: Suppressing the performance of channel state information reference signal measurements includes: Identifying that at least one channel state information reporting configuration identified in the downlink control information is associated with a non-dormant secondary cell in the cell group; and Based at least in part on the at least one channel state information reporting configuration associated with the non-dormant secondary cell and the downlink control information that triggers the channel state information measurement on the dormant secondary cell, channel state information reference signal measurement is performed on the cell associated with the at least one channel state information reporting configuration associated with the non-dormant cell.

21. The device according to claim 13, wherein: The downlink control information includes a downlink grant triggering a channel state information reference signal measurement or an uplink grant triggering a channel state information reference signal measurement.

22. The device according to claim 13, wherein: The instructions are further executable by the processor to cause the device to: A channel state information report is sent indicating channel state information of the one or more cells in the set of cells, wherein the channel state information report indicates channel state information of active cells in the set of cells.

23. An apparatus for wireless communication at a primary cell, comprising: processor, a memory coupled to the processor; as well as Instructions stored in the memory and executable by the processor to cause the device to: Identify a cell group configured for a user equipment (UE); Sending downlink control information to the UE for triggering channel state information reference signal measurement of a set of cells in the cell group, the set of cells including a dormant secondary cell, wherein at least one channel state information reporting configuration identified in the downlink control information is associated with the dormant secondary cell; as well as A channel state information report is received from a UE indicating channel state information of one or more cells in the set of cells, the one or more cells comprising an active cell of the group of cells.

24. The device according to claim 23, wherein: The instructions for receiving a channel state information report are executable by the processor so that the apparatus: A channel state information report is received, where the channel state information report indicates channel state information of a non-dormant cell in the cell set that is associated with a channel state information report configuration.

25. An apparatus for wireless communication at a user equipment (UE), comprising: A component for identifying a cell measurement supported by a UE, the cell measurement being associated with a UE supporting channel state information measurement of a dormant secondary cell in a cell group; means for receiving downlink control information for triggering channel state information reference signal measurement for a set of cells in the cell group, the set of cells including a dormant secondary cell; means for determining that at least one channel state information reporting configuration identified in the downlink control information is associated with the dormant secondary cell; as well as A means for suppressing, based at least in part on downlink control information triggering channel state information measurement of the dormant secondary cell, performing channel state information reference signal measurement on one or more cells in the set of cells identified in the at least one channel state information reporting configuration associated with the dormant cell.

26. The device according to claim 25, wherein The component for refraining from performing channel state information reference signal measurement comprises: Means for discarding downlink control information and refraining from performing channel state information reference signal measurements on cells in the set of cells based at least in part on the downlink control information triggering the channel state information measurement on the dormant secondary cell.

27. The device according to claim 26, wherein: The component for refraining from performing channel state information reference signal measurement comprises: means for determining that the number of active cells in the cell group is less than a threshold; and Means for discarding downlink control information and refraining from performing channel state information reference signal measurements based at least in part on the number of active cells being less than the threshold and downlink control information triggering channel state information reference signal measurements on a dormant secondary cell.

28. The device according to claim 26, wherein The component for refraining from performing channel state information reference signal measurement comprises: means for determining that the number of cells in the cell group is less than a threshold; and Means for discarding downlink control information and refraining from performing channel state information reference signal measurements based at least in part on the number of cells being less than the threshold and the downlink control information triggering channel state information reference signal measurements on dormant secondary cells.

29. The device according to claim 25, wherein: The component for refraining from performing channel state information reference signal measurement comprises: Means for performing channel state information reference signal measurements on cells in the set of cells identified in one or more other channel state information reporting configurations associated with non-dormant cells based at least in part on downlink control information triggering channel state information measurements on dormant secondary cells.

30. The device according to claim 29, wherein: The component for refraining from performing channel state information reference signal measurement comprises: means for determining that the number of active cells in the cell group satisfies a threshold; and A component for performing channel state information reference signal measurements on cells in the set of cells identified in the one or more other channel state information reporting configurations associated with non-dormant cells based at least in part on the number of active cells satisfying the threshold and triggering downlink control information for channel state information reference signal measurements on dormant secondary cells.

31. The device according to claim 29, wherein: The component for refraining from performing channel state information reference signal measurement comprises: means for determining that the number of cells in the cell group satisfies a threshold; and A component for performing channel state information reference signal measurements on cells identified in the set of cells identified in the one or more other channel state information reporting configurations associated with the non-dormant cell based at least in part on the number of cells satisfying the threshold and triggering downlink control information for the channel state information reference signal measurement of the dormant secondary cell.

32. The apparatus of claim 25, wherein: The component for refraining from performing channel state information reference signal measurement comprises: means for identifying that at least one channel state information reporting configuration identified in the downlink control information is associated with a non-dormant secondary cell in the cell group; and A component for performing channel state information reference signal measurement on a cell associated with at least one channel state information reporting configuration associated with a non-dormant secondary cell based at least in part on at least one channel state information reporting configuration associated with the non-dormant secondary cell and downlink control information that triggers channel state information measurement on the dormant secondary cell.

33. The apparatus of claim 25, wherein: The downlink control information includes a downlink grant triggering a channel state information reference signal measurement or an uplink grant triggering a channel state information reference signal measurement.

34. The apparatus of claim 25, further comprising: Means for sending a channel state information report indicating channel state information of the one or more cells in the set of cells, wherein the channel state information report indicates channel state information of active cells in the set of cells.

35. An apparatus for wireless communication at a primary cell, comprising: means for identifying a cell group configured for a user equipment (UE); means for sending, to the UE, downlink control information for triggering channel state information reference signal measurement of a set of cells in the cell group, the set of cells comprising a dormant secondary cell, wherein at least one channel state information reporting configuration identified in the downlink control information is associated with the dormant secondary cell; as well as Means for receiving, from a UE, a channel state information report indicating channel state information of one or more cells in the set of cells, the one or more cells comprising an active cell of the group of cells.

36. The device according to claim 35, wherein The means for receiving a channel state information report comprises: A means for receiving a channel state information report indicating channel state information of a non-dormant cell in the set of cells associated with a channel state information reporting configuration.

37. A non-transitory computer-readable medium storing code for wireless communication at a user equipment (UE), the code comprising instructions executable by a processor to: Identifying a cell measurement supported by the UE, the cell measurement being associated with a UE supporting channel state information measurement of a dormant secondary cell in a cell group; receiving downlink control information triggering channel state information reference signal measurement for a set of cells in the cell group, the set of cells including a dormant secondary cell; determining that at least one channel state information reporting configuration identified in the downlink control information is associated with the dormant secondary cell; and Based at least in part on the downlink control information that triggers the channel state information measurement of the dormant secondary cell, suppressing the channel state information reference signal measurement of one or more cells in the set of cells identified in the at least one channel state information reporting configuration associated with the dormant cell.

38. The non-transitory computer readable medium of claim 37, wherein: Suppressing the performance of channel state information reference signal measurements includes: Based at least in part on the downlink control information triggering the channel state information measurement on the dormant secondary cell, the downlink control information is discarded and channel state information reference signal measurement is refrained from being performed on cells in the set of cells.

39. The non-transitory computer readable medium of claim 38, wherein: Suppressing the performance of channel state information reference signal measurements includes: determining that the number of active cells in the cell group is less than a threshold; and Based at least in part on the number of active cells being less than the threshold and downlink control information triggering channel state information reference signal measurement on a dormant secondary cell, discarding downlink control information and refraining from performing channel state information reference signal measurement.

40. The non-transitory computer readable medium of claim 38, wherein: Suppressing the performance of channel state information reference signal measurements includes: Determining that the number of cells in the cell group is less than a threshold; and Based at least in part on the number of cells being less than the threshold and the downlink control information triggering the channel state information reference signal measurement on the dormant secondary cell, the downlink control information is discarded and the channel state information reference signal measurement is refrained from being performed.

41. The non-transitory computer readable medium of claim 37, wherein: Suppressing the performance of channel state information reference signal measurements includes: Based at least in part on the downlink control information triggering the channel state information measurement of the dormant secondary cell, channel state information reference signal measurement is performed on cells in the set of cells identified in one or more other channel state information reporting configurations associated with the non-dormant cell.

42. The non-transitory computer readable medium of claim 41, wherein: Suppressing the performance of channel state information reference signal measurements includes: determining that the number of active cells in the cell group satisfies a threshold; and Based at least in part on the number of active cells satisfying the threshold and the downlink control information triggering the channel state information reference signal measurement of the dormant secondary cell, channel state information reference signal measurement is performed on the cells in the set of cells identified in the one or more other channel state information reporting configurations associated with the non-dormant cells.

43. The non-transitory computer readable medium of claim 41, wherein: Suppressing the performance of channel state information reference signal measurements includes: Determining that the number of cells in the cell group meets a threshold; and Based at least in part on the number of cells satisfying the threshold and the downlink control information triggering the channel state information reference signal measurement on the dormant secondary cell, perform channel state information reference signal measurement on cells identified in the set of cells identified in the one or more other channel state information reporting configurations associated with the non-dormant cell.

44. The non-transitory computer readable medium of claim 37, wherein: Suppressing the performance of channel state information reference signal measurements includes: Identifying that at least one channel state information reporting configuration identified in the downlink control information is associated with a non-dormant secondary cell in the cell group; and Based at least in part on the at least one channel state information reporting configuration associated with the non-dormant secondary cell and the downlink control information that triggers the channel state information measurement on the dormant secondary cell, channel state information reference signal measurement is performed on the cell associated with the at least one channel state information reporting configuration associated with the non-dormant cell.

45. The non-transitory computer readable medium of claim 37, wherein: The downlink control information includes a downlink grant triggering a channel state information reference signal measurement or an uplink grant triggering a channel state information reference signal measurement.

46. ​​The non-transitory computer readable medium of claim 37, wherein: The instructions are further executable to: A channel state information report is sent indicating channel state information of the one or more cells in the set of cells, wherein the channel state information report indicates channel state information of active cells in the set of cells.

47. A non-transitory computer readable medium storing code for wireless communication at a primary cell, the code comprising instructions executable by a processor to: Identify a cell group configured for a user equipment (UE); Sending downlink control information to the UE that triggers channel state information reference signal measurement of a set of cells in the cell group, the set of cells including a dormant secondary cell, wherein at least one channel state information reporting configuration identified in the downlink control information is associated with the dormant secondary cell; and A channel state information report is received from a UE indicating channel state information of one or more cells in the set of cells, the one or more cells comprising an active cell of the group of cells.

48. The non-transitory computer readable medium of claim 47, wherein: The instructions for receiving a channel state information report may be executed to: A channel state information report is received, where the channel state information report indicates channel state information of a non-dormant cell in the cell set that is associated with a channel state information report configuration.

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