Configuration of secondary cell sleep indication

Abstract

Methods, systems, and devices for wireless communications are described. In general, the techniques described at a user equipment (UE) provide for effectively identifying a sleep state of a secondary cell (SCell) configured for communication with a base station. The UE may be configured with a duration for which the SCell will be in an indicated sleep state. Thus, when the UE receives an indication of a sleep state for the SCell, the UE may determine that the SCell is in a sleep state for the indicated duration. The UE may also be configured with a default sleep state for the SCell. Thus, after the duration expires, the UE may determine that the SCell is in a default sleep state (e.g., after the duration expires, the UE may fall back to the default sleep state for the SCell).

Description

[0001] Cross-references

[0002] This patent application claims priority to U.S. patent application No. 17 / 096,089, filed by DAMNJANOVIC et al. on November 12, 2020, entitled “CONFIGURATION FOR SECONDARY CELL DORMANCY INDICATIONS,” which claims the benefit of U.S. provisional patent application No. 62 / 937,065, filed by DAMNJANOVIC et al. on November 18, 2019, entitled “CONFIGURATION FOR SECONDARY CELL DORMANCY INDICATIONS,” which has been assigned to the assignee of this application. Technical Field

[0003] The following relates generally to wireless communications, and more particularly to configuration of a secondary cell (SCell) dormancy indication. Background Art

[0004] Wireless communication systems are widely deployed to provide various types of communication content, such as voice, video, packet data, messaging, broadcast, 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 various technologies, 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 orthogonal frequency division multiplexing (DFT-S-OFDM).

[0005] A wireless multiple access communication system may include multiple base stations or network access nodes, each of which supports communication of multiple communication devices simultaneously, which may be further referred to as user equipment (UE). Some wireless communication systems may support communication between UE and base stations on multiple cells, including a primary cell (PCell), a primary secondary cell (PSCell), and one or more SCells. In such a system, a base station may actively communicate with a UE on a subset of SCells to adapt to the traffic pattern, while other SCells may be dormant for communication between the base station and the UE. Improved techniques for indicating the dormancy state of an SCell (e.g., whether the SCell is active or dormant) may be required. Summary of the invention

[0006] The described technology relates to improved methods, systems, devices and apparatuses for supporting configuration of a secondary cell (SCell) sleep indication. In general, the technology described at a user equipment (UE) provides for efficiently identifying the sleep state of a SCell configured for communication with a base station (e.g., even when the UE does not receive an indication of the sleep state of the SCell (dynamic indication)). As described herein, the UE can be configured with a duration for which the SCell will be in an indicated sleep state. Thus, when the UE receives an indication of the sleep state of the SCell, the UE can determine that the SCell is in a sleep state for the indicated duration. The UE can also be configured with a default sleep state for the SCell. Thus, after the duration expires, the UE can determine that the SCell is in a default sleep state (e.g., after the duration expires, the UE can fall back to the default sleep state of the SCell).

[0007] A method of wireless communication at a UE is described. The method may include receiving an indication of a dormant state of a secondary cell from a base station, the dormant state indicating whether the secondary cell is dormant or active for communication between the UE and the base station, identifying a duration for which the secondary cell will be in the indicated dormant state, and communicating with the base station based on the indicated dormant state of the secondary cell.

[0008] An apparatus for wireless communication at a UE 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: receive an indication of a dormant state of a secondary cell from a base station, the dormant state indicating whether the secondary cell is dormant or active for communication between the UE and the base station, identify a duration for which the secondary cell will be in the indicated dormant state, and communicate with the base station based on the indicated dormant state of the secondary cell.

[0009] Another apparatus for wireless communication at a UE is described. The apparatus may include components for receiving an indication of a dormant state of a secondary cell from a base station, the dormant state indicating whether the secondary cell is dormant or active for communication between the UE and the base station, identifying a duration for which the secondary cell will be in the indicated dormant state, and communicating with the base station based on the indicated dormant state of the secondary cell.

[0010] 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: receive an indication of a dormant state of a secondary cell from a base station, the dormant state indicating whether the secondary cell is dormant or active for communication between the UE and the base station, identify a duration for which the secondary cell will be in the indicated dormant state, and communicate with the base station based on the indicated dormant state of the secondary cell.

[0011] Some examples of the methods, apparatuses, and non-transitory computer-readable media described herein may also include operations, features, components, or instructions for receiving signaling from a base station indicating a duration that a secondary cell may be in an indicated sleep state. Some examples of the methods, apparatuses, and non-transitory computer-readable media described herein may also include operations, features, components, or instructions for identifying a default sleep state for a secondary cell, and determining that the secondary cell may be in a default sleep state after the duration may have expired, where the default sleep state may be dormant or active. Some examples of the methods, apparatuses, and non-transitory computer-readable media described herein may also include operations, features, components, or instructions for receiving signaling from a base station indicating a default sleep state for a secondary cell.

[0012] In some examples of the methods, apparatuses, and non-transitory computer-readable media described herein, receiving an indication of a sleep state of a secondary cell may include an operation, feature, component, or instruction for receiving wake-up signaling indicating the sleep state of the secondary cell. In some examples of the methods, apparatuses, and non-transitory computer-readable media described herein, receiving an indication of a sleep state of a secondary cell may include an operation, feature, component, or instruction for receiving downlink control information about a primary cell or a primary and secondary cell, the downlink control information indicating the sleep state of the secondary cell. In some examples of the methods, apparatuses, and non-transitory computer-readable media described herein, the duration for which the secondary cell will be in the indicated sleep state is configured for a timer. Some examples of the methods, apparatuses, and non-transitory computer-readable media described herein may also include an operation, feature, component, or instruction for starting a timer when an indication of a sleep state of a secondary cell is received, and falling back to a default sleep state of the secondary cell when the timer expires.

[0013] In some examples of the methods, apparatuses, and non-transitory computer-readable media described herein, the duration that the secondary cell will be in the indicated sleep state is the number of on-durations of the discontinuous reception cycle. Some examples of the methods, apparatuses, and non-transitory computer-readable media described herein may also include operations, features, components, or instructions for starting a counter for the on-duration of the discontinuous reception cycle upon receiving an indication of the sleep state of the secondary cell, and after the counter reaches the number of on-durations of the discontinuous reception cycle, falling back to the default sleep state of the secondary cell at the end of the last on-duration.

[0014] In some examples of the methods, apparatuses, and non-transitory computer-readable media described herein, the duration for which the secondary cell will be in the indicated sleep state is a single next on-duration of the discontinuous reception cycle. Some examples of the methods, apparatuses, and non-transitory computer-readable media described herein may also include operations, features, components, or instructions for falling back to a default sleep state of the secondary cell at the end of the single next on-duration of the discontinuous reception cycle. Some examples of the methods, apparatuses, and non-transitory computer-readable media described herein may also include operations, features, components, or instructions for determining that the secondary cell may be in the indicated sleep state until the UE receives another indication of another sleep state of the secondary cell.

[0015] In some examples of methods, apparatuses, and non-transitory computer-readable media described herein, the indication of the secondary cell sleep state includes a first indication, and the indicated sleep state includes the first sleep state. Some examples of methods, apparatuses, and non-transitory computer-readable media described herein may also include operations, features, components, or instructions for receiving a second indication of a second sleep state of the secondary cell, and determining that the secondary cell may be in the second sleep state based on receiving the second indication, wherein the second indication takes precedence over the first indication.

[0016] In some examples of the methods, apparatuses, and non-transitory computer-readable media described herein, the indicated dormant state is dormant. Some examples of the methods, apparatuses, and non-transitory computer-readable media described herein may also include operations, features, components, or instructions for determining that the secondary cell may be dormant for communications between the UE and the base station for at least the identified duration. In some examples of the methods, apparatuses, and non-transitory computer-readable media described herein, the indicated dormant state may be active. Some examples of the methods, apparatuses, and non-transitory computer-readable media described herein may also include operations, features, components, or instructions for determining that the secondary cell may be active for communications between the UE and the base station for at least the identified duration.

[0017] A method of wireless communication at a base station is described. The method may include: sending signaling to a UE indicating a duration that a secondary cell will be in a dormant state; determining a dormant state of the secondary cell, the dormant state indicating whether the secondary cell is dormant or active for communication between the UE and the base station; sending an indication of the dormant state of the secondary cell to the UE based on the determination; and communicating with the UE based on the indicated dormant state of the secondary cell.

[0018] An apparatus for wireless communication at a base station 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: send signaling to a UE indicating a duration for which a secondary cell will be in a dormant state; determine a dormant state of the secondary cell, the dormant state indicating whether the secondary cell is dormant or active for communication between the UE and the base station; send an indication of the dormant state of the secondary cell to the UE based on the determination; and communicate with the UE based on the indicated dormant state of the secondary cell.

[0019] Another apparatus for wireless communication at a base station is described. The apparatus may include components for: sending signaling to a UE indicating a duration that a secondary cell will be in a dormant state; determining a dormant state of the secondary cell, the dormant state indicating whether the secondary cell is dormant or active for communication between the UE and the base station; sending an indication of the dormant state of the secondary cell to the UE based on the determination; and communicating with the UE based on the indicated dormant state of the secondary cell.

[0020] A non-transitory computer-readable medium storing code for wireless communication at a base station is described. The code may include instructions executable by a processor to: send signaling to a UE indicating a duration for which a secondary cell will be in a dormant state; determine a dormant state of the secondary cell, the dormant state indicating whether the secondary cell is dormant or active for communication between the UE and the base station; send an indication of the dormant state of the secondary cell to the UE based on the determination; and communicate with the UE based on the indicated dormant state of the secondary cell.

[0021] Some examples of the methods, apparatuses, and non-transitory computer-readable media described herein may also include operations, features, components, or instructions for sending signaling to the UE indicating a default sleep state of the secondary cell, where the default sleep state may be dormant or active. In some examples of the methods, apparatuses, and non-transitory computer-readable media described herein, receiving an indication of a sleep state of the secondary cell may include operations, features, components, or instructions for receiving wake-up signaling indicating a sleep state of the secondary cell. In some examples of the methods, apparatuses, and non-transitory computer-readable media described herein, receiving an indication of a sleep state of the secondary cell may include operations, features, components, or instructions for receiving downlink control information about a primary cell or a primary and secondary cell, the downlink control information indicating a sleep state of the secondary cell.

[0022] In some examples of methods, apparatuses, and non-transitory computer-readable media described herein, the duration for which the secondary cell may be in the indicated dormant state may be configured for a timer. In some examples of methods, apparatuses, and non-transitory computer-readable media described herein, the duration for which the secondary cell may be in the indicated dormant state may be the number of on-durations of a discontinuous reception cycle at the UE. In some examples of methods, apparatuses, and non-transitory computer-readable media described herein, the duration for which the secondary cell may be in the indicated dormant state may be a single next on-duration of a discontinuous reception cycle at the UE.

[0023] In some examples of the methods, apparatuses, and non-transitory computer-readable media described herein, the duration that the secondary cell may be in the indicated sleep state may be until further notice. In some examples of the methods, apparatuses, and non-transitory computer-readable media described herein, the indication of the sleep state of the secondary cell includes a first indication, and the indicated sleep state includes the first sleep state. Some examples of the methods, apparatuses, and non-transitory computer-readable media described herein may also include operations, features, components, or instructions for sending a second indication of a second sleep state of the secondary cell, wherein the second indication takes precedence over the first indication. In some examples of the methods, apparatuses, and non-transitory computer-readable media described herein, the indicated sleep state may be dormant or active. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 An example of a wireless communication system supporting configuration for a secondary cell (SCell) dormancy indication in accordance with aspects of the present disclosure is shown.

[0025] Figure 2 An example of a wireless communication system according to aspects of the present disclosure is shown.

[0026] Figure 3An example of communication between a user equipment (UE) and a base station when the UE operates in a discontinuous reception (DRX) mode according to aspects of the present disclosure is shown.

[0027] Figure 4 An example of a process flow according to aspects of the present disclosure is shown.

[0028] Figure 5 and 6 A block diagram of a device according to aspects of the present disclosure is shown.

[0029] Figure 7 A block diagram of a communications manager in accordance with aspects of the present disclosure is shown.

[0030] Figure 8 A schematic diagram of a system including an apparatus according to aspects of the present disclosure is shown.

[0031] Fig. 9 and 10 A block diagram of a device according to aspects of the present disclosure is shown.

[0032] Fig.11 A block diagram of a communications manager in accordance with aspects of the present disclosure is shown.

[0033] Fig.12 A schematic diagram of a system including devices according to aspects of the present disclosure is shown.

[0034] Fig.13 and 14 A flow chart illustrating a method according to aspects of the present disclosure is shown. DETAILED DESCRIPTION

[0035] Some wireless communication systems may support communication between user equipment (UE) and base stations on multiple cells (e.g., a primary cell (PCell), a primary secondary cell (PSCell), or one or more secondary cells (SCells)). The use of multiple cells may allow the base station to increase the bandwidth used to communicate with the UE. For example, a base station may communicate with UEs on multiple cells on multiple aggregated carriers, a feature known as carrier aggregation (e.g., where the UE communicates with each cell at the base station on a separate carrier). To provide additional flexibility, the base station may be configured to deactivate one or more SCells or convert one or more SCells to a dormant state to accommodate the traffic pattern associated with communication with the UE. Specifically, the base station may send a dormant indication to the UE to indicate whether the SCell is active or dormant for communication with the base station. However, in some cases, the base station may not be able to indicate the dormant state of the SCell to the UE, and the UE may not be able to determine whether to communicate with the base station on the SCell. As a result, if the UE avoids communicating with the base station on the active SCell, the wireless communication system may experience a throughput loss. Optionally, if the UE attempts to communicate with the base station on the dormant SCell, the UE may waste power.

[0036] As described herein, a wireless communication system may support effective techniques for configuring a UE to identify a sleep state of a SCell (e.g., even when the UE does not receive an indication of the sleep state of the SCell). Specifically, using the techniques described herein, the UE and the base station are able to synchronize when determining whether the SCell is active or dormant for communication between the UE and the base station. Before receiving an indication of the sleep state of the SCell, the UE may be configured (e.g., explicitly configured or pre-configured via higher layer signaling) with the duration for which the SCell will be in the indicated sleep state. Therefore, when the UE receives an indication of the sleep state of the SCell, the UE may determine that the SCell is in a sleep state for the indicated duration. The UE may also be configured (e.g., explicitly configured or pre-configured via higher layer signaling) with a default sleep state for the SCell. Therefore, after the duration expires, the UE and the base station may determine that the SCell is in a default sleep state (e.g., after the duration expires, the SCell may fall back to the default sleep state).

[0037] The various aspects of the present disclosure described above are described below in the context of a wireless communication system. Then, an example of a process and signaling exchange supporting SCell sleep indication configuration is described. Various aspects of the present disclosure are further illustrated and described with reference to device diagrams, system diagrams, and flow charts related to the configuration of SCell sleep indication.

[0038] Figure 1An example of a wireless communication system supporting configuration for SCell sleep indication according to various aspects of the present disclosure is shown. The wireless communication system 100 includes a base station 105, a UE 115, and a core network 130. In some examples, the wireless communication system 100 can 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 cases, the wireless communication system 100 can support enhanced broadband communications, ultra-reliable (e.g., mission-critical) communications, low latency communications, or communications with low-cost and low-complexity devices.

[0039] The base station 105 may communicate wirelessly with the UE 115 via one or more base station antennas. The base station 105 described herein may include or may be referred to by those skilled in the art as a base transceiver station, 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 some other suitable terminology. The wireless communication system 100 may include different types of base stations 105 (e.g., macro cell or small cell base stations). The UE 115 described herein is capable of communicating with various types of base stations 105 and network devices, including macro eNBs, small cell eNBs, gNBs, relay base stations, etc.

[0040] Each base station 105 may be associated with a particular geographic coverage area 110 in which it supports communications with various UEs 115. Each base station 105 may provide communications coverage for a corresponding geographic coverage area 110 via a communication link 125, and the communication link 125 between the base station 105 and the UE 115 may utilize one or more carriers. 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 (e.g., in a physical uplink control channel (PUCCH) or a physical uplink shared channel (PUSCH)) or a downlink transmission from the base station 105 to the UE 115 (e.g., in a physical downlink control channel (PDCCH) or a physical downlink shared channel (PDSCH)). Downlink transmissions may also be referred to as forward link transmissions, and uplink transmissions may also be referred to as reverse link transmissions.

[0041] The geographic coverage area 110 of the base station 105 can be divided into sectors that constitute a portion of the geographic coverage area 110, and each sector can be associated with a cell. For example, each base station 105 can provide communication coverage for a macro cell, a small cell, a hotspot, or other types of cells, or various combinations thereof. In some examples, the base station 105 can be mobile and thus provide communication coverage for a mobile geographic coverage area 110. In some examples, different geographic coverage areas 110 associated with different technologies can overlap, and overlapping geographic coverage areas 110 associated with different technologies can be supported by the same base station 105 or by different base stations 105. The wireless communication system 100 may include, for example, a heterogeneous LTE / LTE-A / LTE-A Pro or NR network in which different types of base stations 105 provide coverage for various geographic coverage areas 110.

[0042] The term "cell" may refer to a logical communication entity for communicating with a base station 105 (e.g., via a carrier), and may be associated with an identifier (e.g., a physical cell identifier (PCID), a virtual cell identifier (VCID)) for distinguishing adjacent cells operating via the same or different carriers. In some examples, a carrier may support multiple cells, and different cells may be configured according to different protocol types that may provide access to different types of devices (e.g., machine type communication (MTC), narrowband Internet of Things (NB-IoT), enhanced mobile broadband (eMBB), or other). In some cases, the term "cell" may refer to a portion of a geographic coverage area 110 (e.g., a sector) on which a logical entity operates.

[0043] UE 115 may be dispersed throughout the wireless communication system 100, and each UE 115 may be fixed or mobile. UE 115 may also be referred to as a mobile device, a wireless device, a remote device, a handheld device, or a subscriber device, or some other suitable term, where "device" may also be referred to as a unit, a station, a terminal, or a client. UE 115 may also be 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 also refer to a wireless local loop (WLL) station, an Internet of Things (IoT) device, an Internet of Everything (IoE) device, or an MTC device, etc., which may be implemented in various items such as appliances, vehicles, meters, etc.

[0044] The base stations 105 may communicate with the core network 130 and with each other. For example, the base stations 105 may interface with the core network 130 via a backhaul link 132 (e.g., via an S1 interface, an N2 interface, an N3 interface, 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) via a backhaul link 134 (e.g., via an X2, Xn, or other interface).

[0045] The core network 130 may provide user authentication, access authorization, tracking, Internet Protocol (IP) connectivity, and other access, routing, or mobility functions. The core network 130 may be an evolved packet core (EPC), which may include at least one mobility management entity (MME), at least one serving gateway (S-GW), and at least one packet data network (PDN) gateway (P-GW). The MME may manage non-access stratum (e.g., control plane) functions, such as mobility, authentication, and bearer management of UEs 115 served by base stations 105 associated with the EPC. User IP packets may be transmitted through the S-GW, which itself may be connected to the P-GW. The P-GW may provide IP address allocation and other functions. The P-GW may be connected to the IP services of the network operator. The operator's IP services may include access to the Internet, intranet, IP multimedia subsystem (IMS), or packet switched (PS) streaming services.

[0046] At least some of the network devices, such as base stations 105, may include subcomponents, such as access network entities, which may be examples of access node controllers (ANCs). Each access network entity may communicate with UE 115 through multiple other access network transport entities, which may be referred to as radio heads, smart radio heads, or transmission reception points (TRPs). In some configurations, the various functions of each access network entity or base station 105 may be distributed across various network devices (e.g., radio heads and access network controllers), or combined into a single network device (e.g., base station 105).

[0047] In some cases, the wireless communication system 100 can utilize licensed and unlicensed radio bands. For example, the wireless communication system 100 can adopt license assisted access (LAA), unlicensed LTE (LTE-U) radio access technology, or NR technology in an unlicensed band such as the 5GHz ISM band. When operating in an unlicensed radio band, wireless devices such as base stations 105 and UE 115 can adopt a listen-before-talk (LBT) procedure to ensure that the frequency channel is idle before sending data. In some cases, operations in unlicensed bands can be based on a carrier aggregation configuration combined with component carriers operating in a licensed band (e.g., LAA). Operations in unlicensed spectrum can include downlink transmissions, uplink transmissions, peer-to-peer transmissions, or a combination of these. Duplexing in unlicensed spectrum can be based on frequency division duplexing (FDD), time division duplexing (TDD), or a combination of both.

[0048] In some cases, the wireless communication system 100 can be a packet-based network that operates according to a layered protocol stack. In the user plane, the communication at the bearer or packet data convergence protocol (PDCP) layer can be IP-based. The radio link control (RLC) layer can perform packet segmentation and reorganization to communicate on a logical channel. The medium access control (MAC) layer can perform priority processing and multiplexing of logical channels to transport channels. The MAC layer can also use hybrid automatic repeat request (HARQ) to provide retransmission at 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 (which supports the radio bearer of user plane data) between the UE 115 and the base station 105 or the core network 130. At the physical layer, the transport channel can be mapped to the physical channel.

[0049] The term "carrier" may refer to a collection of radio resources having a defined physical layer structure for supporting communications on the communication link 125. For example, a carrier of the communication link 125 may include a portion of a radio spectrum band that operates according to a physical layer channel for a given radio access technology. Each physical layer channel may carry user data, control information, or other signaling. A carrier may be associated with a predefined frequency channel (e.g., an Evolved Universal Mobile Telecommunications System Terrestrial Radio Access (E-UTRA) Absolute Radio Channel Number (EARFCN)) and may be located according to a channel raster for discovery by a UE 115. A carrier may be a downlink or uplink (e.g., in FDD mode) or may be configured to carry downlink and uplink communications (e.g., in TDD mode). In some examples, a signal waveform transmitted on a carrier may be composed of multiple subcarriers (e.g., using a multi-carrier modulation (MCM) technique such as orthogonal frequency division multiplexing (OFDM) or discrete Fourier transform spread OFDM (DFT-S-OFDM)).

[0050] For different radio access technologies (e.g., LTE, LTE-A, LTE-A Pro, NR), the organizational structure of the carrier may be different. For example, communications on the carrier may be organized according to TTIs or time slots, where each TTI or time slot may include user data and control information or signaling that supports decoding user data. The carrier may also include dedicated acquisition signaling (e.g., synchronization signals or system information, etc.) and control signaling that coordinates carrier operations. In some examples (e.g., in a carrier aggregation configuration), the carrier may also have acquisition signaling or control signaling that coordinates the operations of other carriers. Physical channels may be multiplexed on the carrier according to various techniques. For example, physical control channels and physical data channels may be multiplexed on a downlink carrier using time division multiplexing (TDM) technology, frequency division multiplexing (FDM) technology, or hybrid TDM-FDM technology. In some examples, the control information transmitted in the physical control channel may be distributed in a cascaded manner between different control areas (e.g., between a common control area or a common search space and one or more UE-specific control areas or UE-specific search spaces).

[0051] A carrier can be associated with a particular bandwidth of the radio spectrum, and in some examples, the carrier bandwidth can be referred to as the "system bandwidth" of the carrier or wireless communication system 100. For example, the carrier bandwidth can be one of a plurality of predetermined bandwidths of a carrier for a particular radio access technology (e.g., 1.4 MHz, 3 MHz, 5 MHz, 10 MHz, 15 MHz, 20 MHz, 40 MHz, or 80 MHz). In some examples, each served UE 115 can be configured to operate on part or all of the carrier bandwidth. In other examples, some UEs 115 can be configured to operate using a narrowband protocol type associated with a predefined portion or range (e.g., a set of subcarriers or RBs) within a carrier (e.g., an "in-band" deployment of a narrowband protocol type).

[0052] The wireless communication system 100 may support communication between the base station 105 and the UE 115 over multiple cells or carriers (e.g., PCell, PSCell, and one or more SCells), a feature that may be referred to as carrier aggregation or multi-carrier operation. 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 both FDD and TDD component carriers. The use of carrier aggregation may allow the base station 105 to increase the bandwidth used to communicate with the UE 115. To provide additional flexibility, the base station 105 may be configured to deactivate one or more SCells or convert one or more SCells to a dormant state to accommodate the traffic pattern associated with the communication with the UE. Specifically, the base station 105 may send a dormancy indication to the UE 115 to indicate whether the SCell is active or dormant for communication between the UE 115 and the base station 105 (i.e., for triggering dormancy-like behavior of the SCell). An active SCell may refer to an SCell through which the base station 105 or the UE 115 may send or receive data or control information, and a dormant SCell may refer to an SCell through which the base station 105 or the UE 115 may avoid sending and receiving data or control information.

[0053] In some cases, when UE 115 operates in discontinuous reception (DRX) mode, the message used to send the sleep indication may depend on whether UE 115 is within or outside the DRX active time (e.g., the on duration). For example, when UE 115 is outside the DRX active time (e.g., in the off duration of the DRX cycle), the base station 105 may send a sleep indication to UE 115 in a wake-up signal (WUS) in the PDCCH (e.g., where the WUS may indicate that UE 115 is to transition to a wake-up state within the next on duration in the DRX cycle). That is, an explicit information field for UE 115 may be introduced into the PDCCH WUS for transitioning from sleep-like behavior to non-sleep-like behavior on an activated SCell. Optionally, when UE 115 is within the DRX active time (e.g., within the on duration of the DRX cycle), the base station 105 may send a sleep indication to UE 115 in a downlink control information (DCI) on a PCell or PSCell. That is, an explicit information field may be introduced in at least DCI format 0-1 and DCI format 1-1 on a PCell or PSCell for switching between sleep-like and non-sleep-like behaviors on an activated SCell. Thus, a transition of a sleep state triggered outside of a DRX active time may be unidirectional (e.g., from sleep to active), while a transition of a sleep state triggered within a DRX active time may be bidirectional (e.g., from sleep to active or from active to sleep).

[0054] In the above example, the base station 105 may send a control message indicating the sleep state of the SCell to the UE 115. However, in other examples, the base station 105 may not be able to indicate the sleep state of the SCell to the UE 115. For example, the WUS may not be configured, or the WUS may be configured not to have a field for sleep indication (e.g., the SCell sleep behavior indication of the WUS may not be configured), and as a result, the SCell sleep behavior indication may not be sent outside the DRX active time. In addition, after the UE 115 enters the DRX active time and before the UE 115 receives the SCell sleep indication (e.g., in the DCI), the UE 115 may not be configured with the sleep state of the SCell. Therefore, when the UE 115 fails to receive an indication of the SCell sleep state from the base station 105, the UE 115 may not be able to determine whether to communicate with the base station 105 on the SCell. If the UE 115 avoids communicating with the base station 105 on the active SCell, the wireless communication system may experience a throughput loss. Alternatively, if UE 115 attempts to communicate with base station 105 on a dormant SCell, UE 115 may waste power. Wireless communication system 100 may support efficient techniques for configuring UE 115 to recognize the dormant state of a SCell (e.g., even when UE 115 does not receive an indication of the dormant state of the SCell).

[0055] Figure 2 An example of a wireless communication system 200 that supports configuration for SCell sleep indication according to various aspects of the present disclosure is shown. The wireless communication system 200 includes a UE 115-a, which may be a reference Figure 1 The wireless communication system 200 also includes a base station 105-a, which may be a reference Figure 1 An example of a base station 105 is described. The base station 105-a can provide communication coverage for the coverage area 110-a. For example, the base station 105-a can send a downlink signal to a UE 115-a in the coverage area 110-a on resources of the carrier 205. The wireless communication system 200 can implement various aspects of the wireless communication system 100. For example, the wireless communication system 200 can support efficient techniques for configuring the UE 115-a to identify the dormant state of the SCell (e.g., even when the UE 115 does not receive an indication of the dormant state of the SCell).

[0056] exist Figure 2In an example, UE 115-a may receive an SCell sleep configuration from base station 105-a, which indicates parameters for identifying sleep states of different SCells or different SCell groups. According to the techniques described herein, UE 115-a may also be configured with a default sleep state for each SCell or SCell group (e.g., a default SCell behavior, which may be sleep-like or non-sleep-like behavior), or a duration for which the SCell or SCell group will be in the indicated sleep state. Base station 105-a may send signaling to UE 115-a indicating the default sleep state for each SCell or SCell group, or indicating the duration for which the SCell or SCell group will be in the indicated sleep state. Optionally, UE 115-a may be pre-configured with a default sleep state for each SCell or SCell group, or pre-configured with a duration for which the SCell or SCell group will be in the indicated sleep state. In some cases, if the default dormant state of an SCell or SCell group is not signaled to UE 115-a (e.g., the default SCell behavior is not explicitly configured in the signaling), UE 115-a can determine that the SCell or SCell group is dormant (e.g., dormant-like behavior can be assumed to improve energy saving).

[0057] As reference Figure 1 As described, the base station 105-a may send a sleep indication 210 indicating a sleep state of the SCell to the UE 115-a (e.g., in a WUS or in a DCI). The UE 115-a may receive the sleep indication 210 and identify the sleep state of the SCell, and the UE 115-a may determine that the SCell is in the duration configured for the SCell (e.g., the duration of time the SCell will be in the indicated sleep state). If the UE 115-a receives another sleep indication indicating another sleep state of the SCell within the configured duration, the UE 115-a may determine that the SCell is in another indicated sleep state (i.e., the most recently indicated sleep state may override the previously indicated sleep state). Thus, using these techniques, if the UE 115-a is indicated an SCell sleep state (e.g., SCell behavior) instead of the configured default sleep state of the SCell, the indicated sleep state may persist for the configured duration (e.g., only for the configured duration) unless another SCell sleep state is indicated during that duration. At the end of the duration, UE 115-a can fall back to the configured default behavior. That is, when the duration expires, UE 115-a can determine that the SCell is in the default dormant state.

[0058] In some cases, a timer at UE 115-a may be configured with the duration described above, and UE 115-a may determine that the SCell is in the indicated sleep state for the duration of the timer. In this case, once a sleep state of the SCell (e.g., SCell behavior) that is different from the default sleep state (e.g., default behavior) is indicated to UE 115-a, UE 115-a may start or restart the timer. Then, when the timer expires, UE 115-a may determine that the SCell is in the default sleep state (e.g., the SCell sleep state may fall back to the default sleep state). In some examples, an infinite timer may be configured, which may imply that UE 115-a will adhere to the previously indicated SCell sleep state until another indication of another sleep state is received (e.g., until further notice).

[0059] In other cases, the above-mentioned duration may be the number (e.g., one or more) of the on-durations of the DRX cycle for which the UE 115-a is to determine that the SCell is in the indicated sleep state (e.g., the duration may be synchronized with the DRX cycle). In this case, the UE 115-a may keep counting the on-duration after receiving the sleep indication 210. Then, after the count reaches the number of on-durations of the DRX cycle corresponding to the duration, the UE 115-a may determine that the SCell is in the default sleep state at the end of the last on-duration (e.g., the SCell sleep state may fall back to the default sleep state). That is, once the UE enters the off-duration after the last on-duration, which causes the count to reach the number of on-durations of the DRX cycle corresponding to the duration, the UE 115-a may determine that the SCell is in the default sleep state (e.g., all SCells or all SCell groups may switch to the configured default sleep state). In one example, the UE 115 may increment the count at the beginning or end of each on-duration. In some cases, the UE 115-a may enter the off-duration or DRX idle time after the DRX idle timer expires.

[0060] Figure 3 An example of communication 300 between a UE 115 and a base station 105 when the UE 115 operates in a DRX mode is shown according to aspects of the present disclosure. Figure 3In the example of , before or during the on-duration 305-a, the UE 115 may not receive a sleep indication of the SCell. Therefore, the UE 115 can determine that the SCell is in a default sleep state, and the UE 115 can communicate with the base station 105 based on the default sleep state of the SCell. Then, the UE 115 can receive a WUS 310-a including a sleep indication indicating the sleep state of the SCell before a second on-duration 305-b, or the UE 115 can receive a DCI in the PDCCH 315-a including a sleep indication indicating the sleep state of the SCell during the second on-duration 305-b. Therefore, the UE 115 can determine that the SCell is in the indicated sleep state for the duration configured at the UE 115 (e.g., as shown in reference to Figure 2 described).

[0061] The UE 115 may then communicate with the base station 105 based on the indicated sleep state of the SCell. For example, if the UE 115 determines that the SCell is active (e.g., if the indicated sleep state of the SCell is active), the UE 115 may receive data in the PDSCH 320 from the base station 105 in the on-duration 305-b. The UE 115 may then receive a WUS 310-b without an SCell sleep indication before the third on-duration 305-c, or the UE 115 may receive a DCI in the PDCCH 315-b during the third on-duration 305-c without an SCell sleep indication. Therefore, if the configured duration of the sleep state indicated in the WUS 310-a or in the DCI in the PDCCH 315-a has not expired, the UE 115 may still determine that the SCell is in the indicated sleep state. Alternatively, if the configured duration of the sleep state indicated in the WUS 310-a or indicated in the DCI in the PDCCH 315-a has expired, the UE 115 may determine that the SCell is in the default sleep state. Figure 3 The described techniques are described in the context of a single continuous DRX cycle at the UE 115 , but it should be understood that each scenario described for each On-Duration 305 may be isolated and applicable independently.

[0062] Figure 4 An example of a process flow 400 for supporting configuration of an SCell sleep indication according to aspects of the present disclosure is shown. The process flow 400 shows various aspects of a technique performed by a UE 115-b, which may be a reference Figure 1-3The process flow 400 also illustrates various aspects of the technique performed by the base station 105-b, which may be a reference to Figure 1-3 An example of a base station 105 is described. As described herein, the UE 115-b in the process flow 400 can support efficient techniques for identifying the dormant state of the SCell (e.g., even when the UE 115-b does not receive an indication of the dormant state of the SCell).

[0063] At 405, the base station 105-b may send, and the UE 115-b may receive, signaling (e.g., RRC signaling) indicating the duration that the SCell will be in an indicated sleep state. At 410, the base station 105-b may send, and the UE 115-b may receive, signaling (e.g., RRC signaling) indicating a default sleep state for the SCell. The indication of the duration that the SCell will be in the indicated sleep state and the indication of the default sleep state for the SCell may be signaled in the same message or in different messages. In addition, in some examples, the UE 115-b may be configured (e.g., pre-configured) with the duration and default sleep state for the SCell, rather than signaling the duration and default sleep state to the UE 115-b.

[0064] At 415, the base station 105-b may send, and the UE 115-b may receive, an indication of a dormant state of the SCell. The dormant state may indicate whether the SCell is dormant or active for communications between the UE 115-b and the base station 105-b. In some cases, the base station 105-b may send, and the UE 115-b may receive, an indication of the dormant state of the SCell in wake-up signaling or in a DCI in a PDCCH on a PCell or PSCell. At 420, the UE 115-b may identify (e.g., based on the signaling received at 405 or based on a configuration at the UE 115-b) a duration for which the SCell will be in the indicated dormant state. At 425, the UE 115-b may then communicate with the base station 105-b based on the indicated dormant state of the SCell. For example, if the SCell is dormant, the UE 115-b can avoid attempting to communicate (e.g., send or receive signals) with the base station 105-b on the SCell; or if the SCell is active, the UE 115-b can communicate with the base station 105-b on the SCell.

[0065] In some cases, the indication of the sleep state of the SCell received at 415 may be a first indication, and the indicated sleep state may be the first sleep state. In this case, UE 115-b may receive a second indication of a second sleep state of the SCell from base station 105-b, and the second indication may overwrite the first indication. Therefore, UE 115-b may determine that the SCell is in the second sleep state based on receiving the second indication. That is, UE 115-b may determine that the SCell is in the indicated sleep state until UE 115-b receives another indication of another sleep state of the SCell (e.g., until further notification), and UE 115-b may continue to communicate with base station 105-b based on the indicated sleep state of the SCell until UE 115-b receives another indication of another sleep state of the SCell.

[0066] In some cases, UE 115-b may identify a default sleep state for the SCell (e.g., based on signaling received at 410 or based on a configuration at UE 115-b), and UE 115-b may determine that the SCell is in a default sleep state (e.g., where the default sleep state is dormant or active) after a duration expires. In one example, a duration may be configured for a timer, and UE 115-b may start the timer when 415 receives an indication of the sleep state for the SCell. Then, at 430, when the timer expires, UE 115-b may fall back to the default sleep state for the SCell. In another example, the duration may be the number of on-durations of a DRX cycle, and UE 115-b may start a counter for the on-durations of a DRX cycle when 415 receives an indication of the sleep state for the SCell. Then, at 430, UE 115-b may fall back to the default sleep state for the SCell at the end of the last on-duration after the counter reaches the number of on-durations of the DRX cycle. In yet another example, the duration may be a single next on-duration of the DRX cycle, and the UE 115-b may fall back to the default sleep state of the SCell at the end of the single next on-duration. In this example, the UE 115-b may not receive signaling indicating the duration (e.g., at 405). Instead, the UE 115-b may be configured to determine that the cell sleep indication (or the indicated sleep state) is valid for the next or first DRX activity time (e.g., in the absence of any RRC configuration). At 435, the UE 115-b may communicate with the base station 105-b based on the default sleep state of the SCell.

[0067] Figure 5A block diagram 500 of a device 505 supporting configuration for SCell sleep indication according to aspects of the present disclosure is shown. The device 505 may be an example of aspects of a UE 115 as described herein. The device 505 may include a receiver 510, a communication manager 515, and a transmitter 520. The device 505 also includes a processor. Each of these components may communicate with each other (e.g., via one or more buses).

[0068] The receiver 510 may receive information such as packets, user data, or control information associated with various information channels (e.g., control channels, data channels, and information related to the default sleep state of the SCell, etc.). The information may be passed 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 group of antennas.

[0069] The communication manager 515 may be implemented as an integrated circuit or chipset of the device 505, and the receiver 510 and the transmitter 520 may be implemented as analog components (e.g., amplifiers, filters, antennas) coupled to the modem of the device 505 to enable wireless transmission and reception. The communication manager 515 may be an example of aspects of the communication manager 810 as described herein. The actions performed by the communication manager 515 described herein may be implemented to achieve one or more potential advantages. At least one embodiment may enable the communication manager 515 to support activation and deactivation of secondary cells to adapt to traffic patterns, thereby maximizing throughput and saving power.

[0070] For example, the communication manager 515 may receive an indication of a dormant state of a secondary cell from a base station, the dormant state indicating whether the secondary cell is dormant or active for communications between the UE and the base station; identify a duration for which the secondary cell will be in the indicated dormant state; and communicate with the base station based on the indicated dormant state of the secondary cell. By communicating with the base station for at least a duration based on the indicated dormant state of the secondary cell and falling back to a default dormant state after expiration of the duration, one or more processors of the device 505 (e.g., processor(s) controlling the communication manager 515 or in conjunction with the communication manager 515) may save power (e.g., extend battery life) while improving throughput because the UE may communicate on the secondary cell when the secondary cell is active and avoid attempting to communicate on the secondary cell when the secondary cell is dormant.

[0071] 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 DSP, an application specific integrated circuit (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.

[0072] The communication manager 515 or its subcomponents can be physically located in a variety of locations, including being distributed so that portions of functionality are implemented by one or more physical components at different physical locations. In some examples, according to various aspects of the present disclosure, the communication manager 515 or its subcomponents can be separate and distinct components. In some examples, according to various 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.

[0073] Transmitter 520 can transmit signals generated by other components of device 505. In some examples, transmitter 520 can be collocated 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 group of antennas.

[0074] Figure 6 A block diagram 600 of a device 605 supporting configuration for SCell sleep indication 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 also includes a processor. Each of these components may communicate with each other (e.g., via one or more buses).

[0075] The receiver 610 may receive information such as packets, user data, or control information associated with various information channels (e.g., control channels, data channels, and information related to the default sleep state of the SCell, etc.). The information may be passed 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 group of antennas.

[0076] Communications manager 615 may be an example of aspects of communications manager 515 as described herein. Communications manager 615 may include sleep state manager 620, timing manager 625, and cell manager 630. Communications manager 615 may be an example of aspects of communications manager 810 as described herein.

[0077] The dormancy state manager 620 may receive an indication of a dormancy state of a secondary cell from a base station, the dormancy state indicating whether the secondary cell is dormant or active for communication between the UE and the base station. The timing manager 625 may identify the duration for which the secondary cell will be in the indicated dormancy state. The cell manager 630 may communicate with the base station based on the indicated dormancy state of the secondary cell.

[0078] Transmitter 635 can transmit signals generated by other components of device 605. In some examples, transmitter 635 can be collocated with receiver 610 in a transceiver module. For example, 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 group of antennas.

[0079] Figure 7 A block diagram 700 of a communication manager 705 supporting configuration for SCell sleep indication 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 as described herein. The communication manager 705 may include a sleep state manager 710, a timing manager 715, a cell manager 720, a WUS manager 725, and a DCI manager 730. Each of these components may communicate directly or indirectly with each other (e.g., via one or more buses).

[0080] The dormancy state manager 710 may receive an indication of a dormancy state of a secondary cell from a base station, the dormancy state indicating whether the secondary cell is dormant or active for communication between the UE and the base station. The timing manager 715 may identify a duration for which the secondary cell will be in the indicated dormancy state. The cell manager 720 may communicate with the base station based on the indicated dormancy state of the secondary cell.

[0081] In some examples, the timing manager 715 may receive signaling from the base station indicating the duration that the secondary cell will be in the indicated dormant state. In some examples, the dormant state manager 710 may identify the default dormant state of the secondary cell. In some examples, the dormant state manager 710 may determine that the secondary cell is in the default dormant state after the duration expires, where the default dormant state is dormant or active. In some examples, the dormant state manager 710 may receive signaling from the base station indicating the default dormant state of the secondary cell. The WUS manager 725 may receive wake-up signaling indicating the dormant state of the secondary cell. The DCI manager 730 may receive downlink control information about the primary cell or the primary and secondary cells indicating the dormant state of the secondary cell.

[0082] In some examples, the timing manager 715 may start a timer upon receiving an indication of a sleep state of a secondary cell. In some examples, when the timer expires, the sleep state manager 710 may fall back to the default sleep state of the secondary cell. In some examples, upon receiving an indication of a sleep state of a secondary cell, the timing manager 715 may start a counter for the on-duration of the discontinuous reception cycle. In some examples, after the counter reaches the number of on-durations of the discontinuous reception cycle, the sleep state manager 710 may fall back to the default sleep state of the secondary cell at the end of the last on-duration. In some examples, the sleep state manager 710 may fall back to the default sleep state of the secondary cell at the end of a single next on-duration of the discontinuous reception cycle.

[0083] In some examples, the sleep state manager 710 may determine that the secondary cell is in the indicated sleep state until the UE receives another indication of another sleep state of the secondary cell. In some examples, the sleep state manager 710 may receive a second indication of a second sleep state of the secondary cell, wherein the second indication covers the first indication. In some examples, the sleep state manager 710 may determine that the secondary cell is in the second sleep state based on receiving the second indication. In some examples, the sleep state manager 710 may determine that the secondary cell is dormant for communication between the UE and the base station for at least the identified duration. In some examples, the sleep state manager 710 may determine that the secondary cell is active for communication between the UE and the base station for at least the identified duration.

[0084] Figure 8A schematic diagram of a system 800 according to aspects of the present disclosure is shown, the system including a device 805 supporting configuration of an SCell sleep indication. The device 805 may be an example of a device 505, a device 605, or a UE 115 described herein or include components thereof. 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).

[0085] The communication manager 810 may receive an indication of a dormant state of a secondary cell from a base station, the dormant state indicating whether the secondary cell is dormant or active for communication between the UE and the base station, identify a duration for which the secondary cell will be in the indicated dormant state, and communicate with the base station based on the indicated dormant state of the secondary cell.

[0086] 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 another known operating system. 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 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.

[0087] 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 packets received from the antenna.

[0088] 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.

[0089] The memory 830 may include RAM and 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, among other things, a BIOS that may control basic hardware or software operations (such as interaction with peripheral components or devices).

[0090] 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) to cause the device 805 to perform various functions (e.g., functions or tasks supporting configuration for SCell sleep indication).

[0091] 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.

[0092] Fig. 9 A block diagram 900 of a device 905 supporting configuration for SCell sleep indication according to various aspects of the present disclosure is shown. The device 905 may be an example of various aspects of a 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 also includes a processor. Each of these components may communicate with each other (e.g., via one or more buses).

[0093] The receiver 910 may receive information such as packets, user data, or control information associated with various information channels (e.g., control channels, data channels, and information related to the default sleep state of the SCell, etc.). The information may be passed 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 group of antennas.

[0094] The communication manager 915 may send signaling to the UE indicating the duration that the secondary cell will be in a dormant state; determine a dormant state of the secondary cell indicating whether the secondary cell is dormant or active for communications between the UE and the base station; send an indication of the dormant state of the secondary cell to the UE based on the determination; and communicate with the UE based on the indicated dormant state of the secondary cell. The communication manager 915 may be an example of aspects of the communication manager 1210 as described herein.

[0095] 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 application specific integrated circuit (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.

[0096] 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 various aspects of the present disclosure, the communication manager 915 or its subcomponents can be separate and distinct components. In some examples, according to various 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 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.

[0097] The transmitter 920 can transmit signals generated by other components of the device 905. In some examples, the transmitter 920 can be collocated with the receiver 910 in the transceiver module. For example, the transmitter 920 can be a reference Fig.12 Examples of aspects of the transceiver 1220 are described. The transmitter 920 may utilize a single antenna or a group of antennas.

[0098] Fig.10 A block diagram 1000 of a device 1005 supporting configuration for SCell sleep indication according to aspects of the present disclosure is shown. The device 1005 may 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 also includes a processor. Each of these components may communicate with each other (e.g., via one or more buses).

[0099] The receiver 1010 may receive information such as packets, user data, or control information associated with various information channels (e.g., control channels, data channels, and information related to the default sleep state of the SCell, etc.). The information may be passed 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 group of antennas.

[0100] 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 timing manager 1020, a sleep state manager 1025, and a cell manager 1030. The communication manager 1015 may be an example of aspects of the communication manager 1210 as described herein.

[0101] The timing manager 1020 may send signaling to the UE indicating the duration that the secondary cell will be in the dormant state. The dormant state manager 1025 may determine the dormant state of the secondary cell, indicating whether the secondary cell is dormant or active for communication between the UE and the base station; and send an indication of the dormant state of the secondary cell to the UE based on the determination. The cell manager 1030 may communicate with the UE based on the indicated dormant state of the secondary cell.

[0102] Transmitter 1035 can transmit signals generated by other components of device 1005. In some examples, transmitter 1035 can be collocated 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 group of antennas.

[0103] Fig.11 A block diagram 1100 of a communication manager 1105 supporting configuration for SCell sleep indication 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 as described herein. The communication manager 1105 may include a timing manager 1110, a sleep state manager 1115, a cell manager 1120, a WUS manager 1125, and a DCI manager 1130. Each of these components may communicate directly or indirectly with each other (e.g., via one or more buses).

[0104] The timing manager 1110 may send signaling to the UE indicating the duration that the secondary cell will be in a dormant state. The dormant state manager 1115 may determine a dormant state of the secondary cell, which indicates whether the secondary cell is dormant or active for communication between the UE and the base station. In some examples, the dormant state manager 1115 may send an indication of the dormant state of the secondary cell to the UE based on the determination. The cell manager 1120 may communicate with the UE based on the indicated dormant state of the secondary cell.

[0105] In some examples, the sleep state manager 1115 may send a signaling indicating a default sleep state of the secondary cell to the UE, wherein the default sleep state is sleep or active. The WUS manager 1125 may send a wake-up signaling indicating the sleep state of the secondary cell. The DCI manager 1130 may send downlink control information indicating the sleep state of the secondary cell about the primary cell or the primary and secondary cells. In some cases, the duration of the indicated sleep state of the secondary cell is configured for a timer. In some cases, the duration of the indicated sleep state of the secondary cell is the number of on-durations of the discontinuous reception cycle at the UE. In some cases, the duration of the indicated sleep state of the secondary cell is the single next on-duration of the discontinuous reception cycle at the UE. In some cases, the duration of the indicated sleep state of the secondary cell is until further notice. In some examples, the sleep state manager 1115 may send a second indication of a second sleep state of the secondary cell, wherein the second indication covers the first indication. In some cases, the indicated sleep state is sleep or active.

[0106] Fig.12 A schematic diagram of a system 1200 according to aspects of the present disclosure is shown, the system including a device 1205 supporting configuration of an SCell sleep indication. 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).

[0107] The communication manager 1210 can send signaling to the UE indicating the duration that the secondary cell will be in the indicated dormant state; determine the dormant state of the secondary cell, which indicates whether the secondary cell is dormant or active for communication between the UE and the base station; send an indication of the dormant state of the secondary cell to the UE based on the determination; and communicate with the UE based on the indicated dormant state of the secondary cell.

[0108] 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 such as one or more UEs 115 .

[0109] 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.

[0110] 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.

[0111] 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 contain, among other things, a BIOS that may control basic hardware or software operations (such as interaction with peripheral components or devices).

[0112] 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) to cause device 1205 to perform various functions (e.g., functions or tasks supporting configuration for SCell sleep indication).

[0113] The inter-site communication manager 1245 may manage communications with other base stations 105 and may include a controller or scheduler for cooperating with other base stations 105 to control communications with UE 115. For example, the inter-site communication manager 1245 may coordinate the 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 within an LTE / LTE-A wireless communication network technology to provide communications between base stations 105.

[0114] The code 1235 may include instructions for implementing various aspects of the present disclosure, including instructions for 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.

[0115] Fig.13 1 is a flow chart illustrating a method 1300 for supporting configuration of an SCell sleep indication according to aspects of the present disclosure. The operations of the method 1300 may be implemented by the UE 115 or components thereof, as 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 various aspects of the functions described below.

[0116] At 1305, the UE may receive an indication of a dormant state of a secondary cell from a base station, the dormant state indicating whether the secondary cell is dormant or active for communications between the UE and the base station. The operations at 1305 may be performed according to the methods described herein. In some examples, aspects of the operations at 1305 may be performed as described in reference to Figures 5 to 8 Describes the dormant state manager to perform.

[0117] At 1310, the UE may identify the duration that the secondary cell will be in the indicated dormant state. The operations at 1310 may be performed according to the methods described herein. In some examples, aspects of the operations at 1310 may be as described in reference to Figures 5 to 8 Described in the timing manager to perform.

[0118] At 1315, the UE may communicate with the base station based on the indicated dormant state of the secondary cell. The operations at 1315 may be performed according to the methods described herein. In some examples, aspects of the operations at 1315 may be as described in reference to Figures 5 to 8 The cell manager described is executed.

[0119] Fig.14 A flow chart illustrating a method 1400 for supporting configuration of an SCell sleep indication according to aspects of the present disclosure is shown. The operations of the method 1400 may be implemented by the base station 105 or components thereof, as described herein. For example, the operations of the method 1400 may be implemented by reference to Figures 9 to 12In 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 various aspects of the functions described below.

[0120] At 1405, the base station may send signaling to the UE indicating the duration that the secondary cell will be in a dormant state. The operations at 1405 may be performed according to the methods described herein. In some examples, aspects of the operations at 1405 may be performed as described in reference to Figures 9 to 12 Described in the timing manager to perform.

[0121] At 1410, the base station may determine a dormant state of the secondary cell, the dormant state indicating whether the secondary cell is dormant or active for communication between the UE and the base station. The operations at 1410 may be performed according to the methods described herein. In some examples, aspects of the operations at 1410 may be performed as described in reference to Figures 9 to 12 Describes the dormant state manager to perform.

[0122] At 1415, the base station may send an indication of the dormant state of the secondary cell to the UE based on the determination. The operations at 1415 may be performed according to the methods described herein. In some examples, aspects of the operations at 1415 may be as described in reference to Figures 9 to 12 Describes the dormant state manager to perform.

[0123] At 1420, the base station may communicate with the UE based on the indicated dormant state of the secondary cell. The operations at 1420 may be performed according to the methods described herein. In some examples, aspects of the operations at 1420 may be performed as described in reference to Figures 9 to 12 The cell manager described is executed.

[0124] It should be noted that the methods described herein describe possible implementations, and that operations and steps may be rearranged or otherwise modified, and that other implementations are possible. Furthermore, aspects from two or more methods may be combined.

[0125] The following provides an overview of various aspects of the disclosure:

[0126] Aspect 1: A method for wireless communication at a UE, comprising: receiving an indication of a dormant state of a secondary cell from a base station, the dormant state indicating whether the secondary cell is dormant or active for communication between the UE and the base station; identifying a duration for which the secondary cell will be in the indicated dormant state; and communicating with the base station based at least in part on the indicated dormant state of the secondary cell.

[0127] Aspect 2: The method according to aspect 1 further includes: receiving signaling from a base station indicating a duration for which the secondary cell will be in the indicated dormant state.

[0128] Aspect 3: The method according to any one of aspects 1 to 2 further includes: identifying a default dormant state of the secondary cell; and determining that the secondary cell is in the default dormant state after the duration expires, wherein the default dormant state is dormant or active.

[0129] Aspect 4: The method according to aspect 3 further includes: receiving signaling indicating a default dormant state of the secondary cell from a base station.

[0130] Aspect 5: According to the method according to any one of aspects 1 to 4, receiving an indication of the sleep state of the secondary cell includes: receiving wake-up signaling indicating the sleep state of the secondary cell.

[0131] Aspect 6: According to the method according to any one of aspects 1 to 5, receiving the indication of the dormant state of the secondary cell includes: receiving downlink control information indicating the dormant state of the secondary cell on the primary cell or the primary and secondary cells.

[0132] Aspect 7: A method according to any one of Aspects 1 to 6, wherein the duration that the secondary cell will be in the indicated sleep state is configured for a timer, and the method also includes: starting the timer when an indication of the sleep state of the secondary cell is received; and when the timer expires, falling back to the default sleep state of the secondary cell.

[0133] Aspect 8: A method according to any one of Aspects 1 to 7, wherein the duration that the secondary cell will be in the indicated sleep state is the number of on-duration times of the discontinuous reception cycle, and the method further includes: upon receiving an indication of the sleep state of the secondary cell, starting a counter for the on-duration time of the discontinuous reception cycle; and after the counter reaches the number of on-duration times of the discontinuous reception cycle, falling back to the default sleep state of the secondary cell at the end of the last on-duration time.

[0134] Aspect 9: A method according to any one of Aspects 1 to 8, wherein the duration that the secondary cell will be in the indicated sleep state is a single next on-duration of a discontinuous reception cycle, and the method also includes: falling back to the default sleep state of the secondary cell at the end of the single next on-duration of the discontinuous reception cycle.

[0135] Aspect 10: The method according to any one of aspects 1 to 9 further includes: determining that the secondary cell is in the indicated dormant state until the UE receives another indication of another dormant state of the secondary cell.

[0136] Aspect 11: A method according to any one of Aspects 1 to 10, wherein the indication of the sleep state of the secondary cell includes a first indication, and the indicated sleep state includes the first sleep state, the method further comprising: receiving a second indication of a second sleep state of the secondary cell, wherein the second indication covers the first indication; and determining that the secondary cell is in the second sleep state based at least in part on receiving the second indication.

[0137] Aspect 12: The method according to any one of aspects 1 to 11, wherein the indicated dormant state is dormant, the method further comprising: determining that the secondary cell is dormant for communication between the UE and the base station for at least the identified duration.

[0138] Aspect 13: The method according to any one of aspects 1 to 12, wherein the indicated dormant state is active, the method further comprising: determining that the secondary cell is active for communication between the UE and the base station for at least the identified duration.

[0139] Aspect 14: A method for wireless communication at a base station, comprising: sending signaling to a UE indicating the duration that a secondary cell will be in a dormant state; determining a dormant state of the secondary cell, the dormant state indicating whether the secondary cell is dormant or active for communication between the UE and the base station; sending an indication of the dormant state of the secondary cell to the UE based at least in part on the determination; and communicating with the UE based at least in part on the indicated dormant state of the secondary cell.

[0140] Aspect 15: The method according to aspect 14 further includes: sending signaling indicating a default dormant state of the secondary cell to the UE, wherein the default dormant state is dormant or active.

[0141] Aspect 16: According to the method according to any one of Aspects 14 to 15, sending an indication of the dormant state of the secondary cell includes: sending wake-up signaling indicating the dormant state of the secondary cell.

[0142] Aspect 17: According to the method according to any one of aspects 14 to 16, sending the indication of the dormant state of the secondary cell includes: sending downlink control information indicating the dormant state of the secondary cell with respect to the primary cell or the primary and secondary cells.

[0143] Aspect 18: The method according to any one of aspects 14 to 17, wherein a duration for which the secondary cell is to be in the indicated dormant state is configured for a timer.

[0144] Aspect 19: The method according to any one of aspects 14 to 18, wherein the duration that the secondary cell is to be in the indicated dormant state is the number of on-durations of a discontinuous reception cycle at the UE.

[0145] Aspect 20: The method according to any one of aspects 14 to 19, wherein the duration for which the secondary cell is to be in the indicated dormant state is a single next on-duration of a discontinuous reception cycle at the UE.

[0146] Aspect 21: The method according to any one of aspects 14 to 20, wherein the duration for which the secondary cell is to be in the indicated dormant state is until further notification.

[0147] Aspect 22: A method according to any one of Aspects 14 to 21, wherein the indication of the sleep state of the secondary cell includes a first indication, and the indicated sleep state includes the first sleep state, and the method further includes: sending a second indication of a second sleep state of the secondary cell, wherein the second indication covers the first indication.

[0148] Aspect 23: The method according to any one of aspects 14 to 22, wherein the indicated sleep state is sleep or active.

[0149] Aspect 24: An apparatus for wireless communication at a UE, comprising a processor; a memory coupled to the processor; and instructions stored in the memory and executable by the processor to cause the apparatus to perform the method of any one of Aspects 1 to 13.

[0150] Aspect 25: An apparatus for wireless communication at a UE, comprising at least one component for performing the method of any one of aspects 1 to 13.

[0151] Aspect 26: A non-transitory computer-readable medium storing code for wireless communication at a UE, the code comprising instructions executable by a processor to perform the method of any one of aspects 1 to 13.

[0152] Aspect 27: An apparatus for performing wireless communications at a base station, comprising a processor; a memory coupled to the processor; and instructions stored in the memory and executable by the processor to cause the apparatus to perform the method of any one of Aspects 14 to 23.

[0153] Aspect 28: An apparatus for wireless communication at a base station, comprising at least one component for performing the method of any one of aspects 14 to 23.

[0154] Aspect 29: A non-transitory computer-readable medium storing code for wireless communication at a base station, the code comprising instructions executable by a processor to perform the method of any one of aspects 14 to 23.

[0155] The technology described herein can be used in various wireless communication systems, such as code division multiple access (CDMA), time division multiple access (TDMA), frequency division multiple access (FDMA), orthogonal frequency division multiple access (OFDMA), single carrier frequency division multiple access (SC-FDMA) and other systems. CDMA systems can implement radio technologies such as CDMA2000, Universal Terrestrial Radio Access (UTRA), etc. CDMA2000 covers IS-2000, IS-95 and IS-856 standards. IS-2000 versions are commonly referred to as CDMA2000 1X, 1X, etc. IS-856 (TIA-856) is commonly referred to as CDMA2000 1xEV-DO, High Speed ​​Packet Data (HRPD), etc. UTRA includes Wideband CDMA (WCDMA) and other variants of CDMA. TDMA systems can implement radio technologies such as Global System for Mobile Communications (GSM).

[0156] OFDMA systems can implement radio technologies such as Ultra Mobile Broadband (UMB), Evolved UTRA (E-UTRA), Institute of Electrical and Electronics Engineers (IEEE) 802.11 (Wi-Fi), IEEE 802.16 (WiMAX), IEEE 802.20, Flash-OFDM, etc. UTRA and E-UTRA are part of Universal Mobile Telecommunications System (UMTS). LTE, LTE-A, and LTE-A Pro are versions of UMTS using E-UTRA. UTRA, E-UTRA, UMTS, LTE, LTE-A, LTE-A Pro, NR, and GSM are described in documents from an organization named "3rd Generation Partnership Project (3GPP)". CDMA2000 and UMB are described in documents from an organization named "3rd Generation Partnership Project 2 (3GPP2)". The technology described herein can be used for the systems and radio technologies mentioned herein as well as other systems and radio technologies. Although aspects of an LTE, LTE-A, LTE-A Pro, or NR system may be described for example purposes, and LTE, LTE-A, LTE-A Pro, or NR terminology may be used in much of the description, the techniques described herein may be applicable beyond LTE, LTE-A, LTE-A Pro, or NR applications.

[0157] A macro cell typically covers a relatively large geographic area (e.g., a radius of several kilometers) and may allow unrestricted access to UEs that subscribe to services from a network provider. Compared to a macro cell, a small cell may be associated with a low-power base station, and the small cell may operate in the same or different frequency bands as the macro cell (e.g., authorized, unauthorized, etc.). According to various examples, a small cell may include a pico cell, a femto cell, and a micro cell. For example, a pico cell may cover a smaller geographic area and may allow unrestricted access to UEs that subscribe to services from a network provider. A femto cell may also cover a smaller geographic area (e.g., a home) and may provide restricted access to UEs associated with a femto cell (e.g., UEs in a closed subscriber group (CSG), UEs of home users, etc.). The eNB of a macro cell may be referred to as a macro eNB. The eNB of a small cell may be referred to as a small cell eNB, a pico eNB, a femto eNB, or a home eNB. The eNB may support one or more (e.g., two, three, four, etc.) cells and may also support communications using one or more component carriers.

[0158] The wireless communication system described herein can support synchronous or asynchronous operation. For synchronous operation, the base stations can have similar frame timing, and transmissions from different base stations can be approximately aligned in time. For asynchronous operation, the base stations can have different frame timing, and transmissions from different base stations may not be aligned in time. The technology described herein can be used for synchronous and asynchronous operation.

[0159] The information and signals described herein may be represented using any of a variety of different technologies and methods. For example, data, instructions, commands, information, signals, bits, symbols, and chips that may be referenced throughout the description may be represented by voltages, currents, electromagnetic waves, magnetic fields or particles, optical fields or particles, or any combination thereof.

[0160] The various illustrative blocks and modules described in conjunction with the disclosure herein may be implemented or executed with 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 herein. A general purpose processor may be a microprocessor, but alternatively, the processor may be any conventional processor, controller, microcontroller, or state machine. The processor may also be implemented as a combination of computing devices, such as a combination of a DSP and a microprocessor, a plurality of microprocessors, one or more microprocessors combined with a DSP core, or any other such configuration.

[0161] 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 on or transmitted by a computer-readable medium as one or more instructions or codes. 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 thereof. Features that implement the functions may also be physically located in different locations, including being distributed so that parts of the functions are implemented in different physical locations.

[0162] Computer-readable media include non-transitory computer storage media and communication media, and communication media include any media that facilitates the transfer of computer programs from one place to another. Non-transitory storage media can be any available media that can be accessed by general or special computers. As an example and not limitation, non-transitory 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 devices, magnetic disk storage devices or other magnetic storage devices, or any other non-transitory media that can be used to carry or store desired program code components in the form of instructions or data structures and can be accessed by general or special computers or general or special processors. In addition, 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 technology (such as infrared, radio and microwave) is used to send software from a website, server or other remote source, coaxial cable, fiber optic cable, twisted pair, DSL or wireless technology (such as infrared, radio and microwave) are included in the definition of medium. Optical disc and disk, as used herein, include CD, laser disc, optical disc, digital versatile disc (DVD), floppy disk and Blu-ray disc, where disks usually reproduce data magnetically, while disks reproduce data optically with lasers. Combinations of the above are also included within the scope of computer-readable media.

[0163] As used herein, "or" used in a claim when listing (e.g., listings beginning with "at least one" or "one or more") means an inclusive listing, for example, 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 interpreted as a reference to a closed set of conditions. For example, an exemplary step described as "based on condition A" can be based on condition A and condition B without departing from the scope of the present disclosure. In other words, as used herein, the phrase "based on" should be interpreted in the same manner as the phrase "based at least in part on."

[0164] In the drawings, similar components or features may have the same reference label. In addition, various components of the same type may be distinguished by following the reference label with a dash and a second label that distinguishes between the similar components. If only the first reference label is used in the specification, the description applies to any one similar component having the same first reference label, regardless of the second reference label or other subsequent reference labels.

[0165] Example configurations are described herein in conjunction with the accompanying drawings and do not represent all examples that may be implemented or within the scope of the claims. The term "exemplary" as used herein means "used as an example, instance, or illustration," rather than "preferred" or "superior to other examples." In order to provide an understanding of the described technology, the detailed description includes specific details. However, these methods can be implemented without these specific details. In some cases, well-known structures and devices are shown in block diagram form to avoid obscuring the concepts of the examples described.

[0166] The description herein is to enable those skilled in the art to make or use the present disclosure. Various modifications to the present disclosure will be apparent to those skilled 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 widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A method for wireless communication at a user equipment (UE), comprising: receiving an indication of a dormant state of a secondary cell from a base station, the dormant state indicating whether the secondary cell is dormant or active for communication between a UE and the base station; identifying a duration that the secondary cell will be in the indicated dormant state; as well as Communicating with the base station based at least in part on the indicated dormant state and the identified duration of the secondary cell.

2. The method according to claim 1, further comprising: Signaling is received from the base station indicating a duration for which the secondary cell is to be in the indicated dormant state.

3. The method according to claim 1, further comprising: identifying a default dormant state of the secondary cell; as well as After the duration expires, it is determined that the secondary cell is in the default dormant state, wherein the default dormant state is dormant or active.

4. The method according to claim 3, further comprising: Signaling indicating the default dormant state of the secondary cell is received from the base station.

5. The method according to claim 1, wherein receiving the indication of the dormant state of the secondary cell comprises: receiving wake-up signaling indicating the dormant state of the secondary cell.

6. The method according to claim 1, wherein receiving the indication of the dormant state of the secondary cell comprises: Downlink control information indicating the dormant state of the secondary cell is received on a primary cell or a primary secondary cell.

7. The method according to claim 1, wherein the duration that the secondary cell is to be in the indicated dormant state is configured for a timer, the method further comprising: starting the timer upon receiving the indication of the dormant state of the secondary cell; as well as When the timer expires, the secondary cell returns to a default dormant state.

8. The method according to claim 1, wherein the duration that the secondary cell is to be in the indicated dormant state is the number of on-durations of a discontinuous reception cycle, the method further comprising: upon receiving the indication of the dormant state of the secondary cell, starting a counter for an on-duration of the discontinuous reception period; as well as After the counter reaches the number of on-durations of the discontinuous reception cycle, fall back to a default dormant state of the secondary cell at the end of a last on-duration.

9. The method according to claim 1, wherein the duration for which the secondary cell is to be in the indicated dormant state is a single next on-duration of a discontinuous reception cycle, the method further comprising: The method further includes returning to a default dormant state of the secondary cell at the end of the single next on-duration of the discontinuous reception cycle.

10. The method according to claim 1, further comprising: The secondary cell is determined to be in the indicated dormant state until the UE receives another indication of another dormant state of the secondary cell.

11. The method according to claim 1, wherein the indication of the sleep state of the secondary cell comprises a first indication, and the indicated sleep state comprises a first sleep state, the method further comprising: receiving a second indication of a second dormant state of the secondary cell, wherein the second indication covers the first indication; and determining that the secondary cell is in the second dormant state based at least in part on receiving the second indication.

12. The method of claim 1, wherein the indicated sleep state is sleep, the method further comprising: It is determined that the secondary cell is dormant for communication between the UE and the base station for at least the identified duration.

13. The method of claim 1 , wherein the indicated sleep state is active, the method further comprising: It is determined that the secondary cell is active for communication between the UE and the base station for at least the identified duration.

14. A method for wireless communication at a base station, comprising: sending signaling to a user equipment (UE) indicating a duration that the secondary cell will be in a dormant state; determining the dormant state of the secondary cell, the dormant state indicating whether the secondary cell is dormant or active for communication between the UE and the base station; sending, to the UE, an indication of the dormant state of the secondary cell based at least in part on the determination; as well as Communicate with the UE based at least in part on the indicated dormant state of the secondary cell and the duration.

15. The method according to claim 14, further comprising: Signaling indicating a default dormant state of the secondary cell is sent to the UE, wherein the default dormant state is dormant or active.

16. The method according to claim 14, wherein sending the indication of the dormant state of the secondary cell comprises: Sending wake-up signaling indicating the dormant state of the secondary cell.

17. The method according to claim 14, wherein sending the indication of the dormant state of the secondary cell comprises: Downlink control information indicating the dormant state of the secondary cell is sent with respect to the primary cell or the primary and secondary cells. 18 . The method according to claim 14 , wherein a duration that the secondary cell is to be in the indicated dormant state is configured for a timer.

19. The method of claim 14, wherein the duration that the secondary cell is to be in the indicated dormant state is the number of on-durations of a discontinuous reception cycle at the UE.

20. The method of claim 14, wherein the duration that the secondary cell is to be in the indicated dormant state is a single next on-duration of a discontinuous reception cycle at the UE.

21. The method of claim 14, wherein the duration that the secondary cell is to be in the indicated dormant state is until further notice.

22. The method of claim 14, wherein the indication of the sleep state of the secondary cell comprises a first indication, and the indicated sleep state comprises a first sleep state, the method further comprising: Sending a second indication of a second dormant state of the secondary cell, wherein the second indication covers the first indication.

23. The method of claim 14, wherein the indicated sleep state is either dormant or active.

24. An apparatus for wireless communication at a user equipment (UE), comprising: means for receiving an indication of a dormant state of a secondary cell from a base station, the dormant state indicating whether the secondary cell is dormant or active for communication between a UE and the base station; means for identifying a duration for which the secondary cell will be in the indicated dormant state; as well as Means for communicating with the base station based at least in part on the indicated dormant state and the identified duration of the secondary cell.

25. The apparatus according to claim 24, further comprising: Means for receiving signaling from the base station indicating a duration for which the secondary cell will be in the indicated dormant state.

26. The apparatus of claim 24, further comprising: means for identifying a default dormant state of the secondary cell; as well as means for determining that the secondary cell is in the default dormant state after expiration of the duration, wherein the default dormant state is dormant or active.

27. The apparatus according to claim 26, further comprising: Means for receiving signaling from the base station indicating the default dormant state of the secondary cell.

28. An apparatus for wireless communication at a base station, comprising: means for sending signalling to a user equipment (UE) indicating a duration for which the secondary cell will be in a dormant state; means for determining the dormant state of the secondary cell, the dormant state indicating whether the secondary cell is dormant or active for communication between the UE and the base station; means for sending an indication of the dormant state of the secondary cell to the UE based at least in part on the determination; as well as Means for communicating with the UE based at least in part on the indicated dormant state of the secondary cell and the duration.

29. The apparatus according to claim 28, further comprising: Means for sending signaling to the UE indicating a default dormant state of the secondary cell, wherein the default dormant state is dormant or active.

30. The apparatus of claim 28, wherein the means for sending an indication of the dormant state of the secondary cell further comprises: A means for sending wake-up signaling indicating the dormant state of the secondary cell.

31. 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: receiving an indication of a dormant state of a secondary cell from a base station, the dormant state indicating whether the secondary cell is dormant or active for communication between a UE and the base station; identifying a duration that the secondary cell will be in the indicated dormant state; as well as Communicating with the base station based at least in part on the indicated dormant state and the identified duration of the secondary cell.

32. An apparatus for wireless communication at a base station, 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: sending signaling to a user equipment (UE) indicating a duration that the secondary cell will be in a dormant state; determining the dormant state of the secondary cell, the dormant state indicating whether the secondary cell is dormant or active for communication between the UE and the base station; sending, to the UE, an indication of the dormant state of the secondary cell based at least in part on the determination; as well as Communicate with the UE based at least in part on the indicated dormant state of the secondary cell and the duration.

33. A non-transitory computer readable medium having stored thereon code comprising instructions executable by a processor to implement the method of any one of claims 1 to 13.

34. A non-transitory computer readable medium having stored thereon code comprising instructions executable by a processor to implement the method of any one of claims 14 to 23.

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