Non-continuous downlink channel monitoring

Abstract

Methods, systems, and devices for wireless communication are described. A communication device (also referred to as a user equipment (UE)) can receive a downlink control information (DCI) message that includes an indication to enable discontinuous monitoring of a physical downlink control channel (PDCCH). The UE can enable discontinuous monitoring of the PDCCH based on the received DCI message, and disable monitoring of the PDCCH during a time period in which at least one of physical downlink shared channel (PDSCH) reception, downlink reference signal monitoring, uplink reference signal transmission, and channel reporting is enabled. In this way, the UE can experience power savings by disabling monitoring of the PDCCH during the time period while still performing other wireless operations. Thus, the UE can also include features for improved wireless communications, and in some examples, can facilitate high reliability and low latency wireless communications, among other benefits.

Description

[0001] Cross-references

[0002] This patent application claims the benefit of U.S. Provisional Patent Application No. 63 / 026,535, entitled "DISCONTINUOUS DOWNLINK CHANNEL MONITORING," filed May 18, 2020, by KIM et al.; and the benefit of U.S. Patent Application No. 17 / 313,643, entitled "DISCONTINUOUS DOWNLINK CHANNEL MONITORING," filed May 6, 2021, by KIM et al.; each of which is assigned to the assignee of this application. Technical Field

[0003] The following generally pertains to wireless communication, including discontinuous downlink channel monitoring for wireless communication in wireless communication systems. Background Technology

[0004] Wireless communication systems are widely deployed to provide various types of communication content, such as voice, video, packet data, messaging, and broadcasting. These systems may be able to support communication with multiple users by sharing available system resources (such as time, frequency, and power). Examples of such multiple access systems include fourth-generation (4G) systems such as Long Term Evolution (LTE), LTE-A Advanced (LTE-A) systems, or LTE-A Pro systems, and fifth-generation (5G) systems, which may be referred to as New Radio (NR) systems. These systems can employ 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 Extended Orthogonal Frequency Division Multiplexing (DFT-S-OFDM). A wireless multiple access communication system may include one or more base stations or one or more network access nodes, each of which simultaneously supports communication from multiple communication devices, also known as User Equipment (UE). Summary of the Invention

[0005] Various aspects of the described techniques involve configuring a communication device (which may be referred to as a user equipment (UE)) to support discontinuous downlink channel monitoring. For example, the UE can be configured to disable monitoring of the downlink channel, such as disabling monitoring of the physical downlink control channel (PDCCH) during a period when at least one of the following is enabled: physical downlink shared channel (PDSCH) reception, downlink reference signal monitoring, uplink reference signal transmission, and channel reporting. The UE can thus experience power savings by disabling PDCCH monitoring during this period while still performing other radio operations. Therefore, the described techniques can also include features for improving wireless communication, and in some examples, can facilitate high-reliability and low-latency wireless communication, among other benefits.

[0006] A method for wireless communication at a UE is described. The method may include receiving a downlink control information (DCI) message including an indication to enable discontinuous monitoring of the PDCCH, enabling discontinuous monitoring of the PDCCH based on the received DCI message, and disabling monitoring of the PDCCH during a time period in which at least one of PDSCH reception, downlink reference signal monitoring, uplink reference signal transmission, and channel reporting is enabled.

[0007] An apparatus for wireless communication is described. The apparatus may include a processor, a memory coupled to the processor, and instructions stored in the memory. The instructions are executable by the processor to cause the apparatus to receive a DCI message, the DCI message including an indication to enable discontinuous monitoring of the PDCCH, enabling discontinuous monitoring of the PDCCH based on the received DCI message, and disabling monitoring of the PDCCH during a time period in which at least one of PDSCH reception, downlink reference signal monitoring, uplink reference signal transmission, and channel reporting is enabled.

[0008] Another apparatus for wireless communication is described. The apparatus may include components for receiving a DCI message, the DCI message including an indication to enable discontinuous monitoring of the PDCCH, enabling discontinuous monitoring of the PDCCH based on the received DCI message, and disabling monitoring of the PDCCH during a time period in which at least one of PDSCH reception, downlink reference signal monitoring, uplink reference signal transmission, and channel reporting is enabled.

[0009] A non-transitory computer-readable medium is described, storing code for wireless communication at a UE. The code may include instructions executable by a processor to receive a DCI message, the DCI message including an indication to enable discontinuous monitoring of the PDCCH, enabling discontinuous monitoring of the PDCCH based on the received DCI message, and disabling monitoring of the PDCCH during a time period in which at least one of PDSCH reception, downlink reference signal monitoring, uplink reference signal transmission, and channel reporting is enabled.

[0010] In some examples of the methods, apparatuses and nontransitory computer-readable media described herein, a discontinuous reception (DRX) period comprising an active portion and an inactive portion is determined, wherein enabling discontinuous monitoring of the PDCCH comprises enabling discontinuous monitoring of the PDCCH during the DRX period, and disabling monitoring of the PDCCH comprises disabling monitoring of the PDCCH at least during the active portion of the DRX period.

[0011] In some examples of the methods, apparatuses and nontransitory computer-readable media described herein, the indication includes a discontinuous PDCCH monitoring indication (DPMI), wherein enabling discontinuous monitoring of the PDCCH during a DRX cycle may be based on the DPMI.

[0012] Some examples of the methods, apparatuses and non-transitory computer-readable media described herein may also include methods for determining whether a connection mode DRX (C-DRX) mode can be disabled for an operation, feature, component or instruction for the UE, wherein receiving a DCI message including such indication can be disabled based on the C-DRX mode.

[0013] Some examples of the methods, apparatuses, and non-transitory computer-readable media described herein may also include operations, features, components, or instructions for identifying types associated with DPMI and determining, based on the identified types associated with DPMI, whether monitoring of the PDCCH is enabled at least during the active phase.

[0014] Some examples of the methods, apparatuses, and non-transitory computer-readable media described herein may also include operations, features, components, or instructions for disabling monitoring of the PDCCH based on the identified type associated with the DPMI up to the subsequent activity portion associated with a subsequent DRX cycle.

[0015] Some examples of the methods, apparatuses, and non-transitory computer-readable media described herein may also include operations, features, components, or instructions for determining the time period during which monitoring of the PDCCH is disabled based on the identified type associated with the DPMI.

[0016] In some examples of the methods, apparatuses and non-transitory computer-readable media described herein, the time period for disabling monitoring of the PDCCH occurs within the active portion of the DRX cycle.

[0017] 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 a retransmission timer associated with a DRX cycle can be disabled, wherein disabling monitoring of the PDCCH may be based on the determination that the retransmission timer can be disabled.

[0018] Examples of the methods, apparatuses, and non-transitory computer-readable media described herein may also include operations, features, components, or instructions for determining that a retransmission timer associated with a DRX cycle can be enabled, and for enabling monitoring of the PDCCH at least during the active period based on the determination that the retransmission timer can be enabled.

[0019] 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 DPMI field in a received DCI message for downlink data transmission or uplink data transmission or both, the DPMI field including an indication of whether discontinuous PDCCH monitoring can be enabled, wherein disabling monitoring of the PDCCH may be based on the DPMI field in the received DCI message.

[0020] In some examples of the methods, apparatuses, and nontransitory computer-readable media described herein, the DPMI field corresponds to one or more non-continuous PDCCH monitoring parameters.

[0021] In some examples of the methods, apparatuses and nontransitory computer-readable media described herein, the one or more non-continuous PDCCH monitoring parameters indicate that monitoring of the PDCCH should be avoided at least during the active period.

[0022] In some examples of the methods, apparatuses and nontransitory computer-readable media described herein, the one or more non-continuous PDCCH monitoring parameters indicate the time period for disabling monitoring of the PDCCH, at least during the active period.

[0023] In some examples of the methods, apparatuses and nontransitory computer-readable media described herein, the one or more non-continuous PDCCH monitoring parameters indicate that monitoring of the PDCCH is disabled until the subsequent activity portion associated with a subsequent DRX cycle.

[0024] In some examples of the methods, apparatuses and nontransitory computer-readable media described herein, the one or more non-continuous PDCCH monitoring parameters indicate whether monitoring of the PDCCH can be disabled based on determining whether the retransmission timer can be enabled or disabled.

[0025] Some examples of the methods, apparatuses, and non-transitory computer-readable media described herein may also include operations, features, components, or instructions for transmitting uplink transmissions during an active phase while disabling monitoring of the PDCCH.

[0026] In some examples of the methods, apparatuses and non-transitory computer-readable media described herein, uplink transmissions include hybrid automatic repeat request (HARQ) feedback, channel state information (CSI) reports, or sounding reference signal (SRS) transmissions.

[0027] Some examples of the methods, apparatuses, and non-transitory computer-readable media described herein may also include operations, features, components, or instructions for enabling an inactive timer based on receiving a PDCCH during an active period.

[0028] In some examples of the methods, apparatuses and nontransitory computer-readable media described herein, the inactive timer may be separated from the time period associated with the discontinuous monitoring of the PDCCH.

[0029] 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 C-DRX mode can be enabled for the UE and for terminating monitoring of the PDCCH before the inactivity timer expires.

[0030] A method for wireless communication at a base station is described. The method may include determining whether discontinuous monitoring of the PDCCH is enabled or disabled for a UE, and sending a DCI message including an indication of whether discontinuous PDCCH monitoring is enabled or disabled for the UE during at least one of the following time periods: PDSCH reception, downlink reference signal monitoring, uplink reference signal transmission, and channel reporting.

[0031] An apparatus for wireless communication is described. The apparatus may include a processor, a memory coupled to the processor, and instructions stored in the memory. The instructions are executable by the processor to cause the apparatus to determine whether discontinuous monitoring of the PDCCH is enabled or disabled for a UE, and to send a DCI message including an indication of whether discontinuous PDCCH monitoring is enabled or disabled for the UE during at least one of the following time periods: PDSCH reception, downlink reference signal monitoring, uplink reference signal transmission, and channel reporting.

[0032] Another apparatus for wireless communication is described. This apparatus may include components for determining whether discontinuous monitoring of the PDCCH is enabled or disabled for a UE and for sending a DCI message including an indication of whether discontinuous PDCCH monitoring is enabled or disabled for the UE during at least one of the following time periods: PDSCH reception, downlink reference signal monitoring, uplink reference signal transmission, and channel reporting.

[0033] A non-transitory computer-readable medium is described, storing code for wireless communication at a base station. The code may include instructions executable by a processor to determine whether discontinuous monitoring of the PDCCH is enabled or disabled for a UE, and to send a DCI message including an indication that discontinuous PDCCH monitoring is enabled or disabled for the UE during at least one of the following time periods: PDSCH reception, downlink reference signal monitoring, uplink reference signal transmission, and channel reporting.

[0034] Some examples of the methods, apparatuses, and non-transitory computer-readable media described herein may also include methods for determining operations, features, components, or instructions that can be disabled for a UE under C-DRX mode, wherein sending DCI messages can be based on C-DRX mode being disabled.

[0035] Some examples of the methods, apparatuses, and non-transitory computer-readable media described herein may also include operations, features, components, or instructions for determining a DRX cycle that includes active and inactive portions.

[0036] In some examples of the methods, apparatuses and non-transitory computer-readable media described herein, indications include DPMI.

[0037] Some examples of the methods, apparatuses, and non-transitory computer-readable media described herein may also include operations, features, components, or instructions for assigning a type associated with DPMI, where the type corresponds to whether the UE can enable monitoring of the PDCCH at least during the active phase.

[0038] Some examples of the methods, apparatuses, and nontransitory computer-readable media described herein may also include operations, features, components, or instructions for assigning DPMI fields for downlink data transmission or uplink data transmission or both in DCI messages, the DPMI fields including indications of whether non-continuous PDCCH monitoring can be enabled.

[0039] In some examples of the methods, apparatuses, and nontransitory computer-readable media described herein, the DPMI field corresponds to one or more non-continuous PDCCH monitoring parameters.

[0040] In some examples of the methods, apparatuses and nontransitory computer-readable media described herein, the one or more non-continuous PDCCH monitoring parameters instruct the UE to disable monitoring of the PDCCH at least during the active portion of the process.

[0041] In some examples of the methods, apparatuses and nontransitory computer-readable media described herein, the one or more non-continuous PDCCH monitoring parameters indicate the time period for which the UE disables monitoring of the PDCCH at least during the active phase.

[0042] In some examples of the methods, apparatuses and nontransitory computer-readable media described herein, the one or more discontinuous PDCCH monitoring parameters instruct the UE to disable monitoring of the PDCCH until the subsequent active portion associated with a subsequent DRX cycle.

[0043] In some examples of the methods, apparatuses and nontransitory computer-readable media described herein, the one or more discontinuous PDCCH monitoring parameters instruct the UE to disable monitoring of the PDCCH based on an enabled or disabled retransmission timer. Attached Figure Description

[0044] Figure 1 and Figure 2 An example of a wireless communication system according to aspects of this disclosure is shown.

[0045] Figure 3 An example of a timeline based on aspects of this disclosure is shown.

[0046] Figure 4A and Figure 4B An example of a timeline based on aspects of this disclosure is shown.

[0047] Figures 5 to 7 An example of a timeline based on aspects of this disclosure is shown.

[0048] Figure 8 and Figure 9 A block diagram of a device according to aspects of this disclosure is shown.

[0049] Figure 10 A block diagram of a user equipment (UE) communication manager according to aspects of this disclosure is shown.

[0050] Figure 11 A diagram of a system including devices according to aspects of this disclosure is shown.

[0051] Figure 12 and Figure 13 A block diagram of an aspect according to this disclosure is shown.

[0052] Figure 14A block diagram of a base station communication manager according to aspects of this disclosure is shown.

[0053] Figure 15 A diagram of a system including devices according to aspects of this disclosure is shown.

[0054] Figures 16 to 18 A flowchart illustrating a method according to an aspect of this disclosure is shown. Detailed Implementation

[0055] Some wireless communication systems may include communication equipment that supports multiple radio access technologies, such as user equipment (UE) and base stations, such as eNodeB (eNB), next-generation NodeB, or gigabit NodeB (any of which can be referred to as gNB). Examples of radio access technologies include fourth-generation (4G) systems such as Long Term Evolution (LTE) systems and fifth-generation (5G) systems, which can be referred to as New Radio (NR) systems. UEs can support various types of applications that can have periodic or semi-periodic data traffic. Applications can be hosted by the server described herein. The server can send periodic or semi-periodic data traffic to the base station, which can forward the data traffic to the UE. The server can divide the data traffic into multiple slices (also called files) and encode each slice separately, sending the encoded slices to the base station, which can forward the data traffic to the UE using multiple transport blocks (also called transport block bursts). Each transport block burst can have a transmission delay.

[0056] The UE can benefit from the transmission delay between periodic or semi-periodic data traffic and the transport block bursts carrying periodic or semi-periodic data traffic to enable various operations to reduce power consumption. The UE can support Connected Mode Discontinuous Receive (CDRX) operation, where the UE can enter an active state (e.g., powering on during the active portion of the discontinuous receive (DRX) cycle (also known as the ON duration) to monitor downlink channels (e.g., the physical downlink control channel (PDCCH)) to receive periodic or non-periodic data traffic, and enter an inactive state (e.g., powering off during the inactive portion of the DRX cycle (also known as the OFF duration)) and cease monitoring the downlink channels (e.g., the PDCCH). While CDRX operation provides power savings for the UE, there may be situations where CDRX operation can introduce disadvantages to the power savings for periodic or semi-periodic data traffic. For example, an inactive timer associated with CDRX operation may prevent the UE from entering an inactive state, or may trigger the UE to enter an inactive state prematurely, potentially adversely affecting the reception of periodic or semi-periodic data traffic from the base station.

[0057] The described aspects of the technology involve configuring a UE to provide power-saving improvements by disabling downlink channel monitoring (e.g., discontinuous monitoring of the PDCCH when operating in an active state). In some examples, the UE may provide discontinuous monitoring of the PDCCH for a period of time, at least in part, based on downlink control information (DCI) messages sent from the network (e.g., a base station). The DCI message may include one or more DCI fields that may instruct the UE to disable monitoring of the PDCCH for the period of time. The UE may be configured to provide discontinuous monitoring of the PDCCH for the period of time. The UE may still perform Radio Resource Control (RRC) configured operations, such as Channel State Information Reference Signal (CSI-RS) monitoring, CSI reporting, or Sounding Reference Signal (SRS) transmission, during the period of time. In some examples, if there happens to be no RRC configured operation during the period of time, the UE may enter a lower power state, which may be similar in power consumption to the inactive portion of the DRX cycle.

[0058] In some other examples, the UE can be configured to support discontinuous monitoring of the PDCCH during a DRX cycle, which may include an active portion (also known as the ON duration) and an inactive portion (also known as the OFF duration). The time period may include or may be part of the inactive portion. When in the active portion of the DRX cycle, the UE can perform RRC-configured operations such as CSI-RS monitoring, CSI reporting, and SRS transmission. Alternatively, when in the inactive portion of the DRX cycle, the UE may not perform RRC-configured operations such as CSI-RS monitoring, CSI reporting, and SRS transmission. The inactive portion of the DRX cycle may be triggered by the arrival of data traffic authorization or the expiration of a DRX-related timer, or both. Thus, by disabling PDCCH monitoring during the active portion, the UE can experience additional power savings for periodic or semi-periodic data traffic during DRX operation.

[0059] The technologies employed by the UE can provide benefits and enhancements to its operation. In some examples, the actions performed by the UE can provide power-saving improvements. For instance, configuring the UE to disable monitoring of the PDCCH during a time period can reduce the UE's power consumption. In other examples, configuring the UE to disable monitoring of the PDCCH during a time period can facilitate low-latency wireless communication, among other benefits.

[0060] The aspects of this disclosure are initially described in the context of wireless communication systems. These aspects are further illustrated and described with reference to apparatus diagrams, system diagrams, and flowcharts relating to discontinuous downlink channel monitoring for wireless communication in wireless communication systems.

[0061] Figure 1An example of a wireless communication system 100 according to aspects of this disclosure is shown. The wireless communication system 100 may include one or more base stations 105, one or more UEs 115, and a core network 130. In some examples, the wireless communication system 100 may be an LTE network, an LTE-A network, an LTE-A Pro network, or an NR network. In some examples, the wireless communication system 100 may support enhanced broadband communication, ultra-reliable (e.g., mission-critical) communication, low-latency communication, communication with low-cost and low-complexity devices, or any combination thereof.

[0062] Base stations 105 can be distributed throughout a geographical area to form a wireless communication system 100, and can be devices of different forms or with different capabilities. Base stations 105 and UE 115 can communicate wirelessly via one or more communication links 125. Each base station 105 can provide a coverage area 110, and UE 115 and base station 105 can establish one or more communication links 125 on the coverage area 110. The coverage area 110 can be an example of a geographical area where base station 105 and UE 115 can support signal communication according to one or more radio access technologies.

[0063] UE 115 can be distributed throughout the entire coverage area 110 of the wireless communication system 100, and each UE 115 can be stationary or mobile at different times, or both. UE 115 can be devices of different forms or with different capabilities. Figure 1 Some example UE 115s are shown in the figure. Figure 1 As shown, the UE 115 described herein can communicate with various types of devices, such as other UE 115s, base station 105, or network devices (e.g., core network nodes, relay devices, integrated access and backhaul (IAB) nodes, or other network devices).

[0064] Base station 105 may communicate with core network 130, or communicate with each other, or both. For example, base station 105 may interface with core network 130 via one or more backhaul links 120 (e.g., via S1, N2, N3, or other interfaces). Base station 105 may communicate with each other directly (e.g., directly between base stations 105) or indirectly (e.g., via core network 130) or both via backhaul links 120 (e.g., via X2, Xn, or other interfaces). In some examples, backhaul link 120 may be or may include one or more radio links. The one or more base stations 105 described herein may include or may be referred to by those skilled in the art as base transceiver, radio base station, access point, radio transceiver, NodeB, eNB, next-generation NodeB or gigabit NodeB (any of which may be referred to as gNB), home NodeB, home eNodeB, or other suitable terms.

[0065] UE 115 may include or be referred to as a mobile device, wireless device, remote device, handheld device, or subscriber device, or any other suitable term, wherein "device" may also be referred to as a cell, station, terminal, or client, etc. UE 115 may also include or be referred to as a personal electronic device, such as a cellular phone, personal digital assistant (PDA), tablet, laptop, or personal computer. In some examples, UE 115 may include or be referred to as a wireless local loop (WLL) station, Internet of Things (IoT) device, Internet of Everything (IoE) device, or machine-type communication (MTC) device, etc., which can be implemented in various objects, such as appliances or vehicles, meters, etc. The UE 115 described herein can be able to communicate with various types of devices, such as other UE 115s that may sometimes act as relays, as well as base station 105 and network devices, including macro eNBs or gNBs, small cell eNBs or gNBs, or relay base stations, etc. Figure 1 As shown.

[0066] UE 115 and base station 105 can communicate wirelessly with each other via one or more communication links 125 on one or more carriers. The term "carrier" can refer to a set of radio frequency spectrum resources having a defined physical layer structure for supporting communication link 125. For example, a carrier for communication link 125 may include a portion of the radio frequency spectrum band (e.g., a bandwidth portion (BWP)) operating according to one or more physical layer channels of a given radio access technology (e.g., LTE, LTE-A, LTE-A Pro, NR). Each physical layer channel may carry acquisition signaling (e.g., synchronization signals, system information), control signaling coordinating carrier operation, user data, or other signaling. Wireless communication system 100 can use carrier aggregation or multi-carrier operation to support communication with UE 115. UE 115 can be configured with multiple downlink component carriers and one or more uplink component carriers according to a carrier aggregation configuration. Carrier aggregation can be used with frequency division duplex (FDD) and time division duplex (TDD) component carriers.

[0067] In some examples (e.g., in a carrier aggregation configuration), the carrier may also have control signaling or acquisition signaling to coordinate the operation of other carriers. The carrier may be associated with a frequency channel (e.g., an Evolved Universal Mobile Telecommunications System Terrestrial Radio Access (E-UTRA) Absolute Radio Frequency Channel Number (EARFCN)) and can be located according to a channel grating for discovery by UE 115. The carrier may operate in standalone mode, where initial acquisition and connection can be performed by UE 115 via the carrier, or the carrier may operate in non-standalone mode, where connections are anchored using different carriers (e.g., the same or different radio access technologies). The communication link 125 shown in the wireless communication system 100 may include uplink transmissions from UE 115 to base station 105 or downlink transmissions from base station 105 to UE 115. The carrier may carry downlink or uplink communication (e.g., in FDD mode), or may be configured to carry both downlink and uplink communication (e.g., in TDD mode).

[0068] A carrier can be associated with a specific bandwidth of the radio frequency spectrum, and in some examples, the carrier bandwidth can be referred to as the carrier or the “system bandwidth” of the wireless communication system 100. For example, the carrier bandwidth can be one of several defined bandwidths (e.g., 1.4, 3, 5, 10, 15, 20, 40, or 80 MHz) of a carrier for a particular radio access technology. Devices of the wireless communication system 100 (e.g., base station 105, UE 115, or both) can have a hardware configuration that supports communication over a specific carrier bandwidth, or can be configured to support communication over one carrier bandwidth in a set of carrier bandwidths. In some examples, the wireless communication system 100 may include a base station 105 or UE 115 that supports simultaneous communication via carriers associated with multiple carrier bandwidths. In some examples, each served UE 115 can be configured to operate over a portion (e.g., subband, BWP) or all of the carrier bandwidth.

[0069] The signal waveform transmitted on a carrier can consist of multiple subcarriers (e.g., using multi-carrier modulation (MCM) techniques, such as orthogonal frequency division multiplexing (OFDM) or discrete Fourier transform extended OFDM (DFT-S-OFDM)). In systems employing MCM, a resource element can consist of a symbol period (e.g., the duration of a modulation symbol) and a subcarrier, where the symbol period and subcarrier spacing are inversely related. The number of bits carried by each resource element can depend on the modulation scheme (e.g., the order of the modulation scheme, the decoding rate of the modulation scheme, or both). The more resource elements the UE 115 receives and the higher the order of the modulation scheme, the higher the data rate of the UE 115. Wireless communication resources can refer to a combination of radio frequency spectrum resources, temporal resources, and spatial resources (e.g., spatial layers or beams), and the use of multiple spatial layers can further improve the data rate or data integrity of communication with the UE 115.

[0070] One or more parameter sets for a carrier can be supported, where the parameter sets may include subcarrier spacing (Δf) and cyclic prefix. A carrier can be divided into one or more BWPs with the same or different parameter sets. In some examples, UE115 can be configured with multiple BWPs. In some examples, a single BWP of a carrier can be active at a given time, and communication of UE115 can be restricted to one or more active BWPs. The time interval of base station 105 or UE 115 can be represented as a multiple of a basic time unit; for example, a basic time unit can refer to T. s =1 / (Δf) max ·N f The sampling period is ) seconds, where Δf max This can represent the maximum supported subcarrier spacing, and N fThis can represent the maximum supported Discrete Fourier Transform (DFT) size. The time intervals for communication resources can be organized based on each radio frame having a specified duration (e.g., 10 milliseconds (ms)). Each radio frame can be identified by a System Frame Number (SFN) (e.g., ranging from 0 to 1023).

[0071] Each frame may include multiple consecutively numbered subframes or time slots, and each subframe or time slot may have the same duration. In some examples, a frame may be divided (e.g., in the time domain) into subframes, and each subframe may be further divided into multiple time slots. Alternatively, each frame may include a variable number of time slots, and the number of time slots may depend on the subcarrier spacing. Each time slot may include multiple symbol periods (e.g., depending on the length of the cyclic prefix added to each symbol period). In some wireless communication systems 100, time slots may be further divided into multiple mini-time slots containing one or more symbols. In addition to the cyclic prefix, each symbol period may contain one or more (e.g., N) symbols. f The sampling period. The duration of a symbol period can depend on the subcarrier spacing or the operating frequency band. A subframe, time slot, mini-time slot, or symbol can be the minimum scheduling unit of the wireless communication system 100 (e.g., in the time domain) and can be referred to as a transmission time interval (TTI). In some examples, the duration of the TTI (e.g., the number of symbol periods in the TTI) can be variable. Additionally or alternatively, the minimum scheduling unit of the wireless communication system 100 can be dynamically selected (e.g., in a burst of shortened TTIs (sTTIs)).

[0072] Physical channels can be multiplexed on a carrier using various techniques. Physical control channels and physical data channels can be multiplexed on a downlink carrier, for example, using one or more of Time Division Multiplexing (TDM), Frequency Division Multiplexing (FDM), or hybrid TDM-FDM techniques. The control region (e.g., a control resource set (CORESET)) of a physical control channel can be defined by multiple symbol periods and can be extended across the system bandwidth or a subset of the carrier's system bandwidth. One or more control regions (e.g., CORESETs) can be configured for a set of UEs 115. For example, one or more UEs 115 can monitor or search for control regions for control information based on one or more search space sets, and each search space set can include one or more control channel candidates at one or more aggregation levels arranged in a cascaded manner. The aggregation level of control channel candidates can refer to the number of control channel resources (e.g., control channel elements (CCEs)) associated with coded information in a control information format with a given payload size. The search space set can include a common search space set configured to send control information to multiple UEs 115 and a UE-specific search space set for sending control information to a particular UE 115.

[0073] The described aspects of the technology involve configuring UE 115 to provide power-saving improvements by disabling downlink channel monitoring (e.g., discontinuous monitoring of physical channels (e.g., PDCCH) when operating in an active state). In some examples, UE 115 may provide discontinuous monitoring of the PDCCH for a period of time, at least in part, based on a DCI message sent from the network (e.g., base station 105). The DCI message may include one or more DCI fields that may instruct UE 115 (e.g., Discontinuous PDCCH Monitoring Indication (DPMI)) to disable monitoring of the PDCCH for the period of time. UE 115 may be configured to provide discontinuous monitoring of the PDCCH for the period of time. The UE may still perform RRC-configured operations, such as CSI-RS monitoring, CSI reporting, or SRS transmission, during the period of time. In some examples, if there happens to be no RRC-configured operation during the period of time, UE 115 may enter a lower power state, which may be similar in power consumption to the inactive portion of the DRX cycle.

[0074] In some examples, the DPMI can be multiple sets of indications. For example, base station 105-a can indicate a group-specific DMPI. The indication may include fields corresponding to one or more discontinuous downlink channel monitoring parameters. In some examples, each group-specific DMPI can correspond to a cell, such as a component carrier, primary cell, or secondary cell. One or more discontinuous downlink channel parameters can correspond to a cell. In other examples, each group-specific DMPI can correspond to a set of cells. One or more discontinuous downlink channel parameters can correspond to a set of cells. In other examples, each group-specific DMPI can correspond to a DRX group (e.g., a set of DRX periods). One or more discontinuous downlink channel parameters can correspond to a DRX group. Base station 105-a and UE 115-a can support discontinuous PDCCH monitoring in carrier aggregation deployments.

[0075] In some other examples, UE 115 can be configured to support discontinuous monitoring of the PDCCH during a DRX cycle, which may include an active portion (also known as the ON duration) and an inactive portion (also known as the OFF duration). The time period may include or may be part of the inactive portion. When in the active portion of the DRX cycle, UE 115 may perform RRC-configured operations such as CSI-RS monitoring, CSI reporting, or SRS transmission. Alternatively, when in the inactive portion of the DRX cycle, UE 115 may not perform RRC-configured operations such as CSI-RS monitoring, CSI reporting, or SRS transmission. The inactive portion of the DRX cycle may be triggered by the arrival of data traffic authorization or the expiration of a DRX-related timer, or both. Thus, UE 115 can experience additional power savings for periodic or semi-periodic data traffic during CDRX operation by disabling PDCCH monitoring during the active portion. Each base station 105 may provide communication coverage via one or more cells (e.g., macro cells, small cells, hotspots, or other types of cells, or any combination thereof). The term "cell" can refer to a logical communication entity used (e.g., via a carrier) to communicate with base station 105, and can be associated with an identifier used to distinguish neighboring cells (e.g., Physical Cell Identifier (PCID), Virtual Cell Identifier (VCID), or others). In some examples, a cell can also refer to a geographic coverage area 110 or a portion of geographic coverage area 110 (e.g., a sector) on which the logical communication entity operates. Depending on various factors such as the capabilities of base station 105, the range of such a cell can range from a smaller area (e.g., structure, subset of structure) to a larger area. For example, a cell can be or can include buildings, subsets of buildings, or external space between or overlapping geographic coverage areas 110.

[0076] Macro cells cover a relatively large geographic area (e.g., a radius of several kilometers) and can allow unrestricted access for UE 115 with a service subscription to a network provider supporting the macro cell. In contrast, small cells can be associated with a lower-power base station 105 and can operate in the same or different (e.g., licensed, unlicensed) frequency bands as macro cells. Small cells can provide unrestricted access to UE 115 with a service subscription to a network provider, or restricted access to UE 115 associated with the small cell (e.g., UE 115 in a Closed Subscriber Group (CSG), or UE 115 associated with a user in a home or office). Base station 105 can support one or more cells and can also support communication on one or more cells using one or more component carriers. In some examples, carriers can support multiple cells and different cells can be configured based on different protocol types that can provide access to different types of devices (e.g., MTC, Narrowband IoT (NB-IoT), Enhanced Mobile Broadband (eMBB)).

[0077] In some examples, base station 105 may be mobile and provide communication coverage for mobile geographic coverage areas 110. In some examples, different geographic coverage areas 110 associated with different technologies may overlap, but different geographic coverage areas 110 may be supported by the same base station 105. In other examples, overlapping geographic coverage areas 110 associated with different technologies may be supported by different base stations 105. Wireless communication system 100 may include, for example, a heterogeneous network, in which different types of base stations 105 use the same or different radio access technologies to provide coverage for various geographic coverage areas 110.

[0078] The wireless communication system 100 can support synchronous or asynchronous operation. For synchronous operation, base stations 105 can have similar frame timings, and transmissions from different base stations 105 can be approximately time-aligned. For asynchronous operation, base stations 105 can have different frame timings, and in some examples, transmissions from different base stations 105 may not be time-aligned. The techniques described herein can be used for both synchronous and asynchronous operation.

[0079] Some UE 115s, such as MTC or IoT devices, can be low-cost or low-complexity devices and can provide automated communication between machines (e.g., via machine-to-machine (M2M) communication). M2M communication or MTC can refer to data communication technologies that allow devices to communicate with each other or with base station 105 without human intervention. In some examples, M2M communication or MTC can include communication from devices that integrate sensors or meters to measure or capture information and relay such information to a central server or application that utilizes or presents the information to a person interacting with the application. Some UE 115s can be designed to collect information or enable automated behavior of machines or other devices. Examples of applications for MTC devices include smart metering, inventory monitoring, water level monitoring, equipment monitoring, healthcare monitoring, wildlife monitoring, weather and geological event monitoring, fleet management and tracking, remote security sensing, physical access control, and transaction-based commercial toll collection.

[0080] Some UE 115s can be configured to operate in power-saving modes, such as half-duplex communication (e.g., a mode that supports unidirectional communication via transmit or receive but not simultaneous transmit and receive). In some examples, half-duplex communication can be performed at a reduced peak rate. Other power-saving techniques for UE 115s include entering a power-saving deep sleep mode when not engaged in active communication, operating on limited bandwidth (e.g., according to narrowband communication), or a combination of these techniques. For example, some UE 115s can be configured to operate using a narrowband protocol type associated with a defined portion or range (e.g., subcarrier or resource block (RB) set) within the carrier, within the carrier's guard band, or outside the carrier.

[0081] Wireless communication system 100 may be configured to support ultra-reliable communication or low-latency communication, or various combinations thereof. For example, wireless communication system 100 may be configured to support ultra-reliable low-latency communication (URLLC) or mission-critical communication. UE 115 may be designed to support ultra-reliable, low-latency, or mission-critical functions (e.g., mission-critical functions). Ultra-reliable communication may include private or group communication and may be supported by one or more mission-critical services (such as Mission-Critical Push-to-Talk (MCPTT), Mission-Critical Video (MCVideo), or Mission-Critical Data (MCData)). Support for mission-critical functions may include service prioritization, and mission-critical services may be used for public safety or general business applications. The terms ultra-reliable, low-latency, mission-critical, and ultra-reliable low-latency are used interchangeably herein.

[0082] In some examples, UE 115 may also be able to communicate directly with other UE 115 via device-to-device (D2D) communication link 135 (e.g., using peer-to-peer (P2P) or D2D protocols). One or more UE 115s utilizing D2D communication may be within the geographic coverage area 110 of base station 105. Other UE 115s in such a group may be outside the geographic coverage area 110 of base station 105 or may not be able to receive transmissions from base station 105. In some examples, the group of UE 115s communicating via D2D communication may utilize a one-to-many (1:M) system, where each UE 115 transmits to every other UE 115 in the group. In some examples, base station 105 facilitates the scheduling of resources for D2D communication. In other cases, D2D communication occurs between UE 115s without the involvement of base station 105.

[0083] In some systems, the D2D communication link 135 may be an example of a communication channel (such as a side-link communication channel) between vehicles (e.g., UE 115). In some examples, vehicles may communicate using vehicle-to-everything (V2X) communication, vehicle-to-vehicle (V2V) communication, or some combination of these communications. Vehicles may signal information related to traffic conditions, signal control, weather, safety, emergencies, or any other information relevant to the V2X system. In some examples, vehicles in a V2X system may communicate with roadside infrastructure (such as roadside units) or with the network, or both, via vehicle-to-network (V2N) communication through one or more network nodes (e.g., base station 105).

[0084] Core network 130 can provide user authentication, access authentication, tracking, Internet Protocol (IP) connectivity, and other access, routing, or mobility functions. Core network 130 can be an evolved packet core (EPC) or a 5G core (5GC), which may include at least one control plane entity (e.g., a mobility management entity (MME), access and mobility management functions (AMF)) managing access and mobility, and at least one user plane entity routing packets to or interconnecting with external networks (e.g., a serving gateway (S-GW), packet data network (PDN) gateway (P-GW), or user plane function (UPF)). The control plane entity can manage non-access stratum (NAS) functions, such as mobility, authentication, and bearer management for UE 115 served by base station 105 associated with core network 130. User IP packets can be transmitted through the user plane entity, which can provide IP address allocation and other functions. The user plane entity can connect to network operator IP service 150. Operator IP service 150 may include access to the Internet, intranet, IP Multimedia Subsystem (IMS), or packet-switched streaming services.

[0085] Some network devices, such as base station 105, may include sub-components such as access network entity 140, which may be an example of an access node controller (ANC). Each access network entity 140 may communicate with UE 115 through one or more other access network transport entities 145, which may be referred to as a radio head, smart radio head, or transmit / receive point (TRP). Each access network transport entity 145 may include one or more antenna panels. In some configurations, the various functions of each access network entity 140 or base station 105 may be distributed across various network devices (e.g., radio heads and ANCs) or combined into a single network device (e.g., base station 105).

[0086] Wireless communication system 100 can operate using one or more frequency bands ranging from 300 MHz to 300 GHz. The region from 300 MHz to 3 GHz is referred to as the Ultra High Frequency (UHF) region or decimeter band because the wavelengths range from approximately one decimeter to one meter. UHF waves can be blocked or redirected by buildings and environmental features, but the waves can penetrate structures sufficiently to allow macrocells to provide service to UE 115 located indoors. Compared to transmissions using smaller frequencies and longer waves in the High Frequency (HF) or Very High Frequency (VHF) portions of the spectrum below 300 MHz, UHF wave transmission can be associated with smaller antennas and shorter ranges (e.g., less than 100 km).

[0087] The wireless communication system 100 can also operate in the ultra-high frequency (SHF) region using a frequency band from 3 GHz to 30 GHz (also known as the centimeter band), or in the extremely high frequency (EHF) region of the spectrum (e.g., from 30 GHz to 300 GHz) (also known as the millimeter band). In some examples, the wireless communication system 100 can support millimeter-wave (mmW) communication between the UE 115 and the base station 105, and the EHF antennas of the individual devices can be smaller and more closely spaced than UHF antennas. In some examples, this can facilitate the use of antenna arrays within the devices. However, the propagation of EHF transmissions may be subject to greater atmospheric attenuation and a shorter range than SHF or UHF transmissions. The techniques disclosed herein can be adopted across transmissions using one or more different frequency regions, and the designated use of frequency bands across these frequency regions may vary by country or regulatory body.

[0088] Wireless communication system 100 can utilize licensed and unlicensed radio spectrum bands. For example, wireless communication system 100 can employ licensed assisted access (LAA), unlicensed LTE (LTE-U) radio access technology, or NR technology in unlicensed bands such as the 5 GHz Industrial, Scientific, and Medical (ISM) band. When operating in unlicensed radio spectrum bands, devices such as base station 105 and UE 115 can employ carrier sensing for collision detection and avoidance. In some examples, operation in unlicensed bands can be based on a combination of carrier aggregation configuration and component carriers operating in licensed bands (e.g., LAA). Operation in unlicensed spectrum can include downlink transmissions, uplink transmissions, P2P transmissions, or D2D transmissions, etc.

[0089] Base station 105 or UE 115 may be equipped with multiple antennas that can be used to employ technologies such as transmit diversity, receive diversity, multiple-input multiple-output (MIMO) communication, or beamforming. The antennas of base station 105 or UE 115 may be located within one or more antenna arrays or antenna panels that can support MIMO operation or transmit or receive beamforming. For example, one or more base station antennas or antenna arrays may be located together at an antenna assembly (such as an antenna tower). In some examples, the antennas or antenna arrays associated with base station 105 may be located in different geographical locations. Base station 105 may have an antenna array with multiple rows and columns of antenna ports that base station 105 can use to support beamforming for communication with UE 115. Similarly, UE 115 may have one or more antenna arrays that can support various MIMO or beamforming operations. Additionally or alternatively, antenna panels may support radio frequency beamforming for signals transmitted via antenna ports.

[0090] Base station 105 or UE 115 can use MIMO communication to utilize multipath signal propagation and improve spectral efficiency by sending or receiving multiple signals via different spatial layers. Such a technique is called spatial multiplexing. For example, multiple signals can be transmitted by a transmitting device via different antennas or different combinations of antennas. Similarly, multiple signals can be received by a receiving device via different antennas or different combinations of antennas. Each of the multiple signals can be referred to as a separate spatial stream and can carry bits associated with the same data stream (e.g., the same codeword) or different data streams (e.g., different codewords). Different spatial layers can be associated with different antenna ports used for channel measurement and reporting. MIMO techniques include single-user MIMO (SU-MIMO), where multiple spatial layers are sent to the same receiving device, and multi-user MIMO (MU-MIMO), where multiple spatial layers are sent to multiple devices.

[0091] Beamforming, also known as spatial filtering, directional transmission, or directional reception, is a signal processing technique used at transmitting or receiving devices (e.g., base station 105, UE 115) to shape or manipulate antenna beams (e.g., transmit beam, receive beam) along a spatial path between the transmitting and receiving devices. Beamforming can be achieved by combining signals transmitted via antenna elements of an antenna array such that some signals propagating relative to the antenna array in a particular direction experience constructive interference, while others experience destructive interference. The adjustment of signals transmitted via antenna elements can include the transmitting or receiving device applying amplitude shift, phase shift, or both to signals carried via antenna elements associated with that device. The adjustment associated with each antenna element can be defined by a beamforming weight set associated with a particular direction (e.g., relative to the antenna array of the transmitting or receiving device, or relative to some other direction).

[0092] Base station 105 or UE 115 may use beam scanning technology as part of beamforming operations. For example, base station 105 may use multiple antennas or antenna arrays (e.g., antenna panels) to perform beamforming operations for directional communication with UE 115. Some signals (e.g., synchronization signals, reference signals, beam selection signals, or other control signals) may be transmitted multiple times by base station 105 in different directions. For example, base station 105 may transmit signals according to different beamforming weight sets associated with different transmission directions. Transmissions in different beam directions may be used (e.g., by a transmitting device such as base station 105 or a receiving device such as UE 115) to identify beam directions for later transmission or reception by base station 105.

[0093] Some signals, such as data signals associated with a specific receiving device, may be transmitted by base station 105 in a single beam direction (e.g., the direction associated with the receiving device, such as UE 115). In some examples, the beam direction associated with transmission along a single beam direction may be determined based on the signals transmitted in one or more beam directions. For example, UE 115 may receive one or more signals transmitted by base station 105 in different directions and may report to base station 105 an indication that UE 115 received a signal with the highest signal quality or other acceptable signal quality.

[0094] In some examples, transmissions by a device (e.g., by base station 105 or UE 115) may be performed using multiple beam directions, and the device may use a combination of digital precoding or radio frequency beamforming to generate a combined beam for transmission (e.g., from base station 105 to UE 115). UE 115 may report feedback indicating precoding weights for one or more beam directions, and this feedback may correspond to a configured number of beams across the system bandwidth or one or more sub-bands. Base station 105 may transmit reference signals (e.g., cell-specific reference signals (CRS), channel state information reference signals (CSI-RS)), which may be precoded or unprecoded. UE 115 may provide feedback for beam selection, which may be a precoding matrix indicator (PMI) or codebook-based feedback (e.g., multi-panel codebook, linear combination codebook, port selection codebook). Although these techniques are described with reference to signals transmitted by base station 105 in one or more directions, UE 115 may employ similar techniques to transmit signals multiple times in different directions (e.g., to identify beam direction for UE 115 to subsequently transmit or receive) or to transmit signals in a single direction (e.g., to transmit data to a receiving device).

[0095] When receiving various signals (such as synchronization signals, reference signals, beam selection signals, or other control signals) from base station 105, the receiving device (e.g., UE 115) can attempt multiple receiving configurations (e.g., directional listening). For example, the receiving device can attempt multiple receiving directions by: receiving via different antenna subarrays; processing the received signal according to different antenna subarrays; receiving according to different sets of receiving beamforming weights applied to signals received at multiple antenna elements of the antenna array (e.g., different sets of directional listening weights); or processing the received signal according to different sets of receiving beamforming weights applied to signals received at multiple antenna elements of the antenna array, depending on the different receiving configurations or receiving directions, any of which can be referred to as "listening". In some examples, the receiving device can use a single receiving configuration to receive along a single beam direction (e.g., when receiving data signals). The single receiving configuration can be aligned based on beam directions determined according to listening in different receiving configuration directions (e.g., based on listening in multiple beam directions being determined to have the highest signal strength, highest signal-to-noise ratio (SNR), or other acceptable signal quality).

[0096] The wireless communication system 100 can be a packet-based network operating according to a layered protocol stack. In the user plane, communication at the bearer layer or Packet Data Convergence Protocol (PDCP) layer can be IP-based. The Radio Link Control (RLC) layer can perform packet segmentation and reassembly for communication on logical channels. The Media Access Control (MAC) layer can perform priority processing and multiplexing of logical channels to transport channels. The MAC layer can also use error detection techniques, error correction techniques, or both to support retransmissions 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 RRC connections between the UE 115 and the base station 105 or the core network 130 supporting radio bearers for user plane data. At the physical layer, transport channels can be mapped to physical channels.

[0097] UE 115 and base station 105 can support data retransmission to increase the likelihood of successful data reception. Hybrid Automatic Repeat Request (HARQ) feedback is a technique used to increase the likelihood of correct data reception on communication link 125. HARQ can include a combination of error detection (e.g., using Cyclic Redundancy Check (CRC)), forward error correction (FEC), and retransmission (e.g., Automatic Repeat Request (ARQ)). HARQ can improve MAC layer throughput under poor radio conditions (e.g., low signal-to-noise ratio conditions). In some examples, the device can support same-slot HARQ feedback, where the device can provide HARQ for data received in previous symbols within a specific time slot. In other cases, the device can provide HARQ feedback in subsequent time slots or according to a different time interval.

[0098] Figure 2 An example of a wireless communication system 200 according to aspects of this disclosure is shown. The wireless communication system 200 may implement or be implemented by aspects of the wireless communication system 100. For example, the wireless communication system 200 may include a base station 105-a and a UE 115-a, which may be examples of base station 105 and UE 115 described herein. The wireless communication system 200 may support a variety of radio access technologies, including 4G systems such as LTE systems, LTE-A systems, or LTE-A Pro systems, and 5G systems, which may be referred to as NR systems. The wireless communication system 200 may include features for improving power savings, and in some examples, may facilitate highly reliable and low-latency wireless communication, among other benefits.

[0099] Base station 105-a and UE 115-a can support various types of applications that may have periodic or semi-periodic data services 205. Base station 105-a can wirelessly communicate with server 210, which can provide periodic or semi-periodic data services 205 to base station 105-a for forwarding to UE 115-a. Server 210 can be a cloud server, a server associated with an application subscription provider, a proxy server, a web server, an application server, or any combination thereof. Server 210 may include an application distribution platform. The application distribution platform can allow UE 115-a to discover, browse, share, and download applications via base station 105-a, and provide digital distribution of applications from the application distribution platform. Thus, digital distribution can be a form of delivering content such as data without using a physical medium, but rather through an online delivery medium such as the Internet. For example, UE 115-a can upload or download applications for streaming, downloading, uploading, or processing data (e.g., images, audio, video). Server 210 can also send various information to UE 115-a via base station 105-a, such as instructions or commands for downloading applications on UE 115-a.

[0100] For example, base station 105-a and UE 115-a can support mixed reality (XR) applications, which can have periodic or semi-periodic XR data services. XR applications can support various frame rates, such as 60MHz or 120MHz. Server 210 can generate 60MHz XR frames, which can correspond to a periodicity of 16.67ms. Optionally, server 210 can generate 120MHz XR frames, which can correspond to a periodicity of 8.33ms. Server 210 can send periodic or semi-periodic XR data services to base station 105-a, which can forward the XR data services to UE 115-a. Server 210 can divide the XR data services into multiple slices (also called files) and encode each slice separately, sending the encoded slices to base station 105-a. Base station 105-a can use multiple transport blocks (also called transport block bursts) to forward the XR data services to UE 115-a. In some examples, there may be transmission delays between each transport block burst.

[0101] UE 115-a can benefit from periodic or semi-periodic data traffic 205, including benefiting from the transmission delay between transport block bursts carrying periodic or semi-periodic data traffic 205, to enable various operations to reduce power consumption. For example, UE 115-a can support CDRX operation, where UE 115-a can enter an active state (e.g., powered on during the active duration (also known as the active portion) of a DRX cycle) to monitor downlink channels (e.g., PDCCH) to receive periodic or semi-periodic data traffic 205, and enter an inactive state (e.g., powered off during the inactive duration (also known as the inactive portion) of a DRX cycle) and stop monitoring downlink channels (e.g., PDCCH). Although CDRX operation provides power savings for UE 115-a, there may be situations where CDRX operation may provide disadvantages to the power savings of UE 115-a. For example, an inactivity timer associated with CDRX operation can prevent UE 115-a from entering an inactive state, or can trigger UE 115-a to enter an inactive state prematurely, thereby affecting the reception of periodic or semi-periodic data services 205.

[0102] UE 115-a can provide power savings at UE 115-a by enabling discontinuous monitoring of the downlink channel (e.g., disabling downlink channel monitoring when operating in an active state). UE 115-a can enable or disable PDCCH monitoring autonomously or based on an indication received from base station 105-a (also known as a discontinuous PDCCH monitoring indication (DPMI)). The indication may include fields corresponding to one or more discontinuous downlink channel monitoring parameters. These one or more discontinuous downlink channel parameters may indicate that downlink channel monitoring should be avoided during a time period (e.g., the active duration of a DRX cycle). In some examples, the one or more discontinuous downlink channel parameters may indicate the time period for disabling downlink channel monitoring. In some other examples, the one or more discontinuous downlink channel parameters may indicate that downlink channel monitoring is disabled until the subsequent active duration associated with a subsequent DRX cycle, or that downlink channel monitoring is disabled based on determining whether a retransmission timer is enabled or disabled.

[0103] In some examples, the DPMI can be multiple sets of indications. For example, base station 105-a can indicate a group-specific DMPI. The indication may include fields corresponding to one or more discontinuous downlink channel monitoring parameters. In some examples, each group-specific DMPI can correspond to a cell, such as a component carrier, primary cell, or secondary cell. One or more discontinuous downlink channel parameters can correspond to a cell. In other examples, each group-specific DMPI can correspond to a set of cells. One or more discontinuous downlink channel parameters can correspond to a set of cells. In other examples, each group-specific DMPI can correspond to a DRX group (e.g., a set of DRX periods). One or more discontinuous downlink channel parameters can correspond to a DRX group. Base station 105-a and UE 115-a can support discontinuous PDCCH monitoring in carrier aggregation deployments.

[0104] UE 115-a can disable downlink channel monitoring during a time period while continuing other wireless communication operations, such as PDSCH reception, downlink reference signal monitoring, uplink reference information transmission, and channel reporting. In some other examples, UE 115-a can disable downlink channel monitoring during the active duration of the DRX cycle while continuing other wireless communication operations, such as PDSCH reception, downlink reference signal monitoring, uplink reference information transmission, and channel reporting. Thus, UE 115-a can experience additional power savings by enabling discontinuous monitoring of the downlink channel during a time period. By configuring UE 115-a to disable PDCCH monitoring during a time period, UE 115-a can reduce power consumption. Additionally or alternatively, configuring UE 115-a to disable PDCCH monitoring during a time period can facilitate low-latency wireless communication, among other benefits.

[0105] Figure 3 An example of timeline 300 according to aspects of this disclosure is shown. Timeline 300 can be implemented as described in reference to [references to other documents]. Figure 1 and Figure 2 Aspects of the wireless communication systems 100 and 200 may be implemented by or based on aspects of the wireless communication systems 100 and 200. Timeline 300 may be based on the configuration of base station 105 or UE 115 and implemented by UE 115 to reduce the power consumption of UE 115. Timeline 300 may also be based on the configuration of base station 105 or UE 115 and implemented by UE 115 to promote high reliability and low latency wireless communication in the wireless communication system, as well as other benefits. Figure 3In the example, UE 115 can receive data service 305 via transport block burst 310. Data service 305 can be semi-periodic or periodic. For example, periodicity 315 may exist between two consecutive transport block bursts 310. UE 115 can determine power-saving timing 320 at least in part based on periodicity 315 between two consecutive transport block bursts 310 to experience additional power savings. UE 115 can disable monitoring of downlink channels (such as PDCCH for data service 305) during power-saving timing 320, but other radio operations such as PDSCH reception, downlink reference signal monitoring, uplink reference signal transmission, and channel reporting (e.g., CSI reporting) can still be performed during power-saving timing 320.

[0106] Figure 4A An example of timeline 400-a according to an aspect of this disclosure is shown. Timeline 400-a can be referenced separately. Figure 1 and Figure 2 The aspects of the described wireless communication systems 100 and 200 may be implemented by or based on aspects of the wireless communication systems 100 and 200. Timeline 400-a may be based on the configuration of base station 105 or UE 115 and implemented by UE 115 to reduce the power consumption of UE 115. Timeline 400-a may also be based on the configuration of base station 105 or UE 115 and implemented by UE 115 to promote high reliability and low latency wireless communication in the wireless communication system, as well as other benefits.

[0107] Referring to timeline 400-a, base station 105 may transmit downlink channel 405 to UE 115. Downlink channel 405 may include PDCCH or PDSCH, or a combination of both. PDCCH may schedule transport block bursts carrying data service 420 within PDSCH. In some examples, data service 420 may be semi-periodic or periodic. For example, data service 420 may be an XR data service, and in some examples, it may be an XR frame segmented into multiple XR slices. Base station 105 may transmit on downlink channel 405 during a time period (e.g., the activity duration of a DRX period), and UE 115 may receive a single transport block or transport block burst carrying data service 420 on downlink channel 405 during the same time period.

[0108] Timeline 400-a may include one or more activity durations 410, which may be one or more time slots in which UE 115 monitors one or more downlink channels 405 to receive data service 420. In some examples, one or more activity durations 410 may be part of the activity duration of a DRX cycle, and UE 115 may monitor one or more downlink channels 405 during the activity duration. Additionally or alternatively, timeline 400-a may include activity durations 415, which may be one or more activity time slots in which UE 115 does not monitor one or more downlink channels 405 of data service 420.

[0109] Base station 105 can transmit data service 420 according to the periodicity associated with data service 420, and UE 115 can receive data service 420 according to the periodicity associated with data service 420. In some examples, there may be a delay between two transmissions of data service 420. For example, base station 105 may transmit and UE 115 may receive data service 420 at a first time, and then base station 105 may transmit and UE 115 may receive data service 420 at a second time. The difference between the first and second times can be the delay between two transmissions of data service 420. Because, as described herein, data service 420 can be semi-periodic or periodic, UE 115 can benefit from this and can implement various operations to reduce power consumption.

[0110] exist Figure 4AIn the example, DRX mode (e.g., CDRX mode) can be disabled. Base station 105 can send a message including DPMI 425 to UE 115. When DRX mode is disabled, DPMI 425 can trigger UE 115 to perform discontinuous monitoring of one or more downlink channels 405 (such as PDCCH) to reduce power consumption. For example, UE 115 can disable PDCCH monitoring of one or more downlink channels 405 during activity duration 415. Although PDCCH monitoring of one or more downlink channels 405 is disabled during activity duration 415, PDSCH reception, downlink reference signal monitoring, uplink reference signal transmission, and channel reporting can still be enabled during activity duration 415. That is, UE 115 can still perform PDSCH reception, downlink reference signal monitoring (e.g., demodulation reference signal (DMRS) monitoring), uplink reference signal transmission (e.g., SRS transmission), and channel reporting (e.g., CSI reporting) during activity duration 415. Therefore, UE 115 can experience additional power savings for periodic or semi-periodic data traffic 420 by disabling the PDCCH monitoring one or more downlink channels 405 during the active duration 415, where UE 115 does not expect data traffic 420 from base station 105. In other words, UE 115 can remain active and reduce power consumption.

[0111] Figure 4B An example of timeline 400-b according to an aspect of this disclosure is shown. Timeline 400-b can be referenced separately. Figure 1 and Figure 2 The aspects of the described wireless communication systems 100 and 200 may be implemented by or based on aspects of the wireless communication systems 100 and 200. Timeline 400-b may be based on the configuration of base station 105 or UE 115 and implemented by UE 115 to reduce the power consumption of UE 115. Timeline 400-b may also be based on the configuration of base station 105 or UE 115 and implemented by UE 115 to promote high reliability and low latency wireless communication in the wireless communication system, among other benefits.

[0112] Referring to timeline 400-b, base station 105 may transmit downlink channel 405 to UE 115. Downlink channel 405 may include PDCCH or PDSCH, or a combination of both. PDCCH may schedule one or more transport block bursts carrying data service 420 in PDSCH. In some examples, data service 420 may be semi-periodic or periodic as described herein. For example, data service 420 may be an XR data service, and in some examples, it may be an XR frame segmented into multiple XR slices. Base station 105 may transmit on downlink channel 405 during an active duration (e.g., the active portion of a DRX cycle), and UE 115 may receive multiple transport block bursts carrying data service 420 on downlink channel 405 during the active duration.

[0113] Timeline 400-b may include one or more activity durations 410, which may be one or more time slots in which UE 115 monitors one or more downlink channels 405 to receive data service 420. The one or more activity durations 410 may be part of the activity duration of a DRX cycle, and UE 115 may monitor the PDCCH of one or more downlink channels 405 during the activity duration. Additionally or alternatively, timeline 400-b may include activity durations 415, which may be one or more activity time slots in which UE 115 does not monitor the PDCCH of one or more downlink channels 405 for data service 420.

[0114] Base station 105 can transmit data service 420 according to the periodicity associated with data service 420, and UE 115 can receive data service 420 according to the periodicity associated with data service 420. In some examples, there may be a delay between two transmissions of data service 420. For example, base station 105 may transmit and UE 115 may receive data service 420 at a first time, and then base station 105 may transmit and UE 115 may receive data service at a second time. The difference between the first time and the second time can be the delay between two transmissions of data service 420. Since data service 420 is semi-periodic or periodic as described herein, UE 115 can implement various operations to reduce power consumption.

[0115] exist Figure 4BIn the example, DRX mode (e.g., CDRX mode) can be enabled. Base station 105 can send a message including DPMI 425 to UE 115. When DRX mode is enabled, DPMI 425 can trigger UE 115 to perform discontinuous monitoring of the PDCCH of one or more downlink channels 405 to save power. For example, UE 115 can disable monitoring of the PDCCH of one or more downlink channels 405 during the active duration 415. DPMI 425 can also trigger UE 115 to disable monitoring of the PDCCH of one or more downlink channels 405, for example, before the DRX inactivity timer 435 expires. The DRX inactivity timer 435 can define the duration for which UE 115 should remain active after receiving the PDCCH of one or more downlink channels 405. That is, the DRX inactivity timer 435 specifies how long UE 115 should remain "ON" after receiving the PDCCH. The DRX inactivity timer 435 may be unaffected by DPMI 425. In some examples, UE 115 can remain active while the DRX inactivity timer 435 is running.

[0116] By triggering UE 115 to disable monitoring of the PDCCH of one or more downlink channels 405 during the active duration 415, UE 115 can experience additional power savings during DRX operation. For example, UE 115 can disable monitoring of the PDCCH of one or more downlink channels 405 during the active DRX duration. In some cases, UE 115 can still perform PDSCH reception, downlink reference signal monitoring, uplink reference information transmission, and channel reporting (e.g., CSI reporting) during the active duration 415. Therefore, UE 115 can experience additional power savings for periodic or semi-periodic data traffic 420 by enabling discontinuous monitoring of the PDCCH of one or more downlink channels 405 during the active duration 415. In other words, UE 115 can remain active and experience reduced power consumption. Discontinuous monitoring of the PDCCH of downlink channels 405 can be used when DRX is enabled or disabled.

[0117] Figure 5 An example of timeline 500 according to aspects of this disclosure is shown. Timeline 500 can be implemented with reference to each other. Figure 1 and Figure 2Aspects of the described wireless communication systems 100 and 200 may be implemented by or based on aspects of the wireless communication systems 100 and 200. Timeline 500 may be based on the configuration of base station 105 or UE 115 and implemented by UE 115 to reduce the power consumption of UE 115. Timeline 500 may also be based on the configuration of base station 105 or UE 115 and implemented by UE 115 to promote high reliability and low latency wireless communication in the wireless communication system, among other benefits.

[0118] UE 115 can monitor the downlink channel carrying data traffic during the active duration. During the active duration, UE 115 can be in an active state (e.g., the transceiver of UE 115 can be powered on). Similarly, UE 115 can choose not to monitor the downlink channel during the inactive duration of the DRX cycle. When in an inactive duration, UE 115 can be in an inactive state (e.g., the transceiver of UE 115 can be powered off) for power saving. Reference Figure 5 UE 115 may receive a downlink channel during the activity duration 505. The downlink channel may include PDCCH 510 or PDSCH 515, or a combination thereof. PDCCH 510 or PDSCH 515, or a combination thereof, may carry a transport block or transport block burst carrying data traffic. In some examples, the data traffic may be semi-periodic or periodic as described herein. For example, the data traffic may be XR data traffic, and in some examples, it may be an XR frame divided into multiple XR slices. Base station 105 may transmit on the downlink channel during the activity duration 505, and UE 115 may receive a transport block or transport block burst on the downlink channel during the activity duration 505.

[0119] PDCCH 510 may carry a DCI message containing a DPMI. UE 115 may determine the type associated with the DPMI and, based on the identified type associated with the DPMI, determine whether to disable monitoring of PDCCH 510 at least during the active duration 525. UE 115 may determine that the type associated with the DPMI corresponds to a first type, thereby enabling the disabling of monitoring of PDCCH 510 during the active duration 525. For example, UE 115 may disable monitoring of PDCCH 510 during the active duration 525 until the active duration 535 following the inactive duration 530. In some examples, the active duration 525 may be a portion of the active duration 505 of a DRX cycle. Alternatively, UE 115 may determine a period 540 for disabling monitoring of PDCCH 510 based on the identified type associated with the DPMI. Period 540 may include the active duration 525 and the inactive duration 530 during which UE 115 does not monitor PDCCH 510 according to the DMPI. UE 115 can disable monitoring of PDCCH 510 during time period 540. Time period 540 can be a configured duration (e.g., via an RRC configuration message). In some examples, if a previous PDCCH scheduled before time period 540 falls within time period 540 (e.g., is received during time period 540), UE 115 can still receive PDSCH during time period 540.

[0120] UE 115 may send feedback 520 to base station 105 during activity duration 525. Feedback 520 may be HARQ feedback (e.g., positive acknowledgment or negative acknowledgment). In some other examples, UE 115 may send a CSI report to base station 105 during activity duration 525. The CSI report may include CSI parameters such as Channel Quality Indicator (CQI), Precoding Matrix Indicator (PMI), or CSI Reference Signal (CSI-RS) Indicator (CRI). In some other examples, one or more CSI parameters may additionally or alternatively include one or more of Synchronization Signal Physical Broadcast Channel (SS / PBCH) Block Resource Indicator (SSBRI), Layer Indicator (LI), Rank Indicator (RI), or Layer 1 Reference Signal Received Power (L1-RSRP). In other examples, UE 115 may send an uplink reference signal, such as a Sounding Reference Signal (SRS), to base station 105 during activity duration 525, which base station 105 may use to estimate the uplink channel quality between base station 105 and UE 115. Although PDCCH monitoring is disabled during activity duration 525, PDSCH reception, downlink reference signal monitoring, uplink reference signal transmission, and channel reporting can still be enabled for UE 115 during activity duration 525.

[0121] Figure 6 An example of a timeline 600 according to aspects of this disclosure is shown. Timeline 600 can be implemented with reference to... Figure 1 and Figure 2 Aspects of the described wireless communication systems 100 and 200 may be implemented by or based on aspects of the wireless communication systems 100 and 200. Timeline 600 may be based on the configuration of base station 105 or UE 115 and implemented by UE 115 to reduce the power consumption of UE 115. Timeline 600 may also be based on the configuration of base station 105 or UE 115 and implemented by UE 115 to promote high reliability and low latency wireless communication in the wireless communication system, among other benefits.

[0122] UE 115 can operate in DRX mode. In DRX mode, UE 115 can monitor the downlink channel carrying data traffic during the active duration of the DRX cycle. During the active duration, UE 115 can be active (e.g., the receiver or transmitter of UE 115, or both, can be powered on). Similarly, UE 115 can not monitor the downlink channel during the inactive duration of the DRX cycle. During the inactive duration, UE 115 can be inactive (e.g., the receiver or transmitter of UE 115, or both, can be powered off) to reduce power consumption.

[0123] refer to Figure 6 UE 115 may receive a downlink channel during the activity duration 605. The downlink channel may include PDCCH 610 or PDSCH 615, or a combination thereof. PDCCH 610 or PDSCH 615, or a combination thereof, may carry a transport block or transport block burst carrying data traffic. In some examples, the data traffic may be semi-periodic or periodic as described herein. For example, the data traffic may be XR data traffic, and in some examples, it may be an XR frame divided into multiple XR slices. Base station 105 may transmit on the downlink channel during the activity duration 605 of the DRX cycle, and UE 115 may receive a transport block or transport block burst on the downlink channel during the activity duration 605 of the DRX cycle.

[0124] PDCCH 610 may carry a DCI message containing a DPMI. UE 115 may determine the type associated with the DPMI and, based on the identified type associated with the DPMI, determine whether to enable discontinuous monitoring of PDCCH 610 at least during the active duration 605. The active duration 605 may be part of a DRX cycle. UE 115 may determine that the type associated with the DPMI corresponds to a second type. UE 115 may disable monitoring of PDCCH 610 during the active duration 605 until the next active duration 620 after the inactive duration 625 of the DRX cycle. Alternatively, UE 115 may determine a period 630 for disabling monitoring of PDCCH 610 based on the second type associated with the DPMI. UE 115 may disable monitoring of PDCCH 610 during period 630.

[0125] In some examples, UE 115 can disable monitoring of PDCCH 610 only when the retransmission timer (e.g., DRX retransmission timer) is not running. UE 115 can send feedback 635 to base station 105 during activity duration 605. Feedback 635 can be HARQ feedback (e.g., positive acknowledgment or negative acknowledgment). Although PDCCH 610 is monitored during activity duration 605, feedback reporting for UE 115 can still be enabled during activity duration 605. Figure 6 In the example, feedback 635 can be a negative acknowledgment associated with a transport block or transport block burst carried by PDSCH 615 scheduled by PDCCH 610. As a result, retransmission of a transport block or transport block burst carried by PDSCH 615 scheduled by PDCCH 610 can occur based on feedback 635.

[0126] In some examples, UE 115 may enable Round-Trip Timer (RTT) timer 640. While RTT timer 640 is running, UE 115 may disable monitoring of PDCCH 610 based on DMPI. In some examples, if UE 115 has already sent a negative acknowledgment to base station 105, UE 115 may enable DRX retransmission timer 645, which defines the duration for which UE 115 may wait for a retransmission from base station 105. A retransmission may be a transport block or transport block burst carried by PDSCH 615 scheduled by a previously unreceived PDCCH 610. UE 115 may enable monitoring of PDCCH 610 based on DRX retransmission timer 645 during a portion of the active duration 605, and disable monitoring of PDCCH 610 during the active duration 650 when DRX retransmission timer 645 is not running. Based on the received DPMI, UE 115 can determine whether the retransmission timer is running and enable or disable monitoring of PDCCH 610. UE 115 can start, pause, and resume discontinuous monitoring of PDCCH, at least in part, based on whether the RTT timer or DRX retransmission timer is running.

[0127] Figure 7 An example of timeline 700 according to aspects of this disclosure is shown. Timeline 700 can be implemented with reference to each other. Figure 1 and Figure 2 Aspects of the wireless communication systems 100 and 200 may be implemented by or based on aspects of the wireless communication systems 100 and 200. Timeline 700 may be based on the configuration of base station 105 or UE 115 and implemented by UE 115 to reduce the power consumption of UE 115. Timeline 700 may also be based on the configuration of base station 105 or UE 115 and implemented by UE 115 to promote high reliability and low latency wireless communication in the wireless communication system, as well as other benefits.

[0128] UE 115 can operate in DRX mode. In DRX mode, UE 115 can monitor the downlink channel carrying data traffic during the active duration of the DRX cycle. During the active duration, UE 115 can be in an active state (e.g., the UE's transceiver can be powered on). Similarly, during the inactive duration of the DRX cycle, UE 115 can not monitor the downlink channel. During the inactive duration, UE 115 can be in an inactive state (e.g., the UE 115's transceiver can be powered off) to reduce power consumption. Reference Figure 7UE 115 can receive downlink channels during the activity duration 705. The downlink channels may include multiple PDCCH 710s or multiple PDSCH 715s, or a combination thereof. Multiple PDCCH 710s or multiple PDSCH 715s, or a combination thereof, may carry transport block bursts carrying data services. Figure 7 In the example, base station 105 may transmit on the downlink channel during the activity duration 705 of the DRX cycle, and UE 115 may receive multiple transport block bursts carrying data services on the downlink channel during the activity duration 705 of the DRX cycle. Multiple transport block bursts may also correspond to multiple feedback procedures (e.g., multiple feedback 720).

[0129] UE 115 can enable RTT timer 725, which can be defined as follows: Figure 6 The UE 115, as described above, expects a retransmission prior to the retransmission. For example, a retransmission may occur for a first PDSCH 715 scheduled by a first PDCCH 710. In some examples, the UE 115 may enable a DRX retransmission timer 730, which may define a period during which the UE 115 may remain active to wait for a retransmission from base station 105. The retransmission may be a previously unreceived transport block burst carried by the first PDSCH 715 and scheduled by the first PDCCH 710. The UE 115 may enable monitoring of the PDCCH 710 based on the DRX retransmission timer 730 during a portion of the active duration 705 (e.g., active duration 735). Based on the received DPMI, the UE 115 may determine whether the retransmission timer is running, and if the retransmission timer is running, enable monitoring of the PDCCH 710 to schedule one or more retransmissions of the transport block burst carried by the PDSCH 715. If UE 115 receives a DMPI indicating that monitoring of the PDCCH is disabled and the retransmission timer is not running, UE 115 may disable monitoring of the PDCCH for the duration of the activity period 735. UE 115 may start and stop discontinuous monitoring of the PDCCH based at least in part on whether the RTT timer or the DRX retransmission timer is running.

[0130] Figure 8 A block diagram 800 of a device 805 according to an aspect of this disclosure is shown. Device 805 may be an example of an aspect of UE 115 as described herein. Device 805 may include a receiver 810, a UE communication manager 815, and a transmitter 820. Device 805 may also include a processor. Each of these components may communicate with each other (e.g., via one or more buses).

[0131] Receiver 810 can 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 discontinuous downlink channel monitoring). This information can be passed to other components of device 805. Receiver 810 can serve as a reference. Figure 11 Examples of aspects of the transceiver 1120. The receiver 810 may utilize a single antenna or an array of antennas.

[0132] The UE communication manager 815 can receive DCI messages that include instructions to enable discontinuous monitoring of the PDCCH, enable discontinuous monitoring of the PDCCH based on the received DCI message, and disable monitoring of the PDCCH during at least one of the following time periods: PDSCH reception, downlink reference signal monitoring, uplink reference signal transmission, and channel reporting. The UE communication manager 815 may be an example of an aspect of the UE communication manager 1110 described herein.

[0133] The UE communication manager 815 can be implemented as an integrated circuit or chipset of a modem, and the receiver 810 and transmitter 820 can be implemented as analog components (e.g., amplifiers, filters, antennas) coupled to the modem to enable the wireless transmission and reception of device 805. The UE communication manager 815 described herein can be implemented to achieve one or more potential advantages. Various implementations can enable power savings in device 805. At least one implementation allows the UE communication manager 815 to effectively disable monitoring of the PDCCH during a time period while performing other radio operations such as CSI-RS monitoring, CSI reporting, or SRS transmission. At least one implementation allows the UE communication manager 815 to disable monitoring of the PDCCH during the active portion of the DRX cycle.

[0134] The UE communication manager 815 or its sub-components may be implemented in hardware, processor-executable code (e.g., software or firmware), or any combination thereof. If implemented in processor-executable code, the functionality of the UE communication manager 815 or its sub-components may be performed by a general-purpose processor, DSP, application-specific integrated circuit (ASIC), 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 this disclosure.

[0135] The UE communication manager 815 or its sub-components may be physically located in various locations, including being distributed such that some functions are implemented by one or more physical components in different physical locations. In some examples, according to various aspects of this disclosure, the UE communication manager 815 or its sub-components may be separate and distinct components. In some examples, the UE communication manager 815 or its sub-components may be combined with one or more other hardware components, including but not limited to input / output (I / O) components, transceivers, network servers, other computing devices, one or more other components described in this disclosure, or combinations thereof.

[0136] Transmitter 820 can transmit signals generated by other components of device 805. In some examples, transmitter 820 may be co-located with receiver 810 in a transceiver assembly. For example, transmitter 820 may be a reference... Figure 11 Examples of aspects of the transceiver 1120 described. The transmitter 820 may utilize a single antenna or an array of antennas.

[0137] Figure 9 A block diagram 900 of a device 905 according to an aspect of this disclosure is shown. Device 905 may be an example of an aspect of device 805 or UE 115 as described herein. Device 905 may include a receiver 910, a UE communication manager 915, and a transmitter 930. Device 905 may also include a processor. Each of these components may communicate with each other (e.g., via one or more buses).

[0138] Receiver 910 can 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 discontinuous downlink channel monitoring). This information can be passed to other components of device 905. Receiver 910 can serve as a reference. Figure 11 Examples of aspects of the transceiver 1120. The receiver 910 may utilize a single antenna or an array of antennas.

[0139] As described herein, UE communication manager 915 may be an example of an aspect of UE communication manager 815. UE communication manager 915 may include message component 920 and monitoring component 925. UE communication manager 915 may be an example of an aspect of UE communication manager 1110 described herein. Message component 920 may receive a DCI message including an indication to enable discontinuous monitoring of the PDCCH. Monitoring component 925 may enable discontinuous monitoring of the PDCCH based on the received DCI message and disable monitoring of the PDCCH during at least one of the following time periods: PDSCH reception, downlink reference signal monitoring, uplink reference signal transmission, and channel reporting.

[0140] Transmitter 930 can transmit signals generated by other components of device 905. In some examples, transmitter 930 may be co-located with receiver 910 in a transceiver assembly. For example, transmitter 930 may be a reference... Figure 11 Examples of aspects of the transceiver 1120 are described. The transmitter 930 may utilize a single antenna or an array of antennas.

[0141] Figure 10 A block diagram 1000 of a UE communication manager 1005 according to aspects of this disclosure is shown. The UE communication manager 1005 may be an example of aspects of the UE communication manager 815, UE communication manager 915, or UE communication manager 1110 described herein. The UE communication manager 1005 may include a message component 1010, a monitoring component 1015, a DRX component 1020, and a timer component 1025. Each of these components may communicate with each other directly or indirectly (e.g., via one or more buses).

[0142] Message component 1010 can receive DCI messages that include an indication to enable discontinuous monitoring of the PDCCH. In some examples, message component 1010 can identify the type associated with DPMI. In some examples, message component 1010 can determine whether to enable PDCCH monitoring at least during the active phase based on the identified type associated with DPMI. In some examples, message component 1010 can identify a DPMI field in the received DCI message for downlink or uplink data transmission, the DPMI field including an indication of whether discontinuous PDCCH monitoring is enabled by the received DCI message, wherein disabling PDCCH monitoring is based on the DPMI field in the received DCI message. In some examples, message component 1010 can transmit uplink transmissions during the active phase while disabling PDCCH monitoring.

[0143] The indication may include DPMI, where enabling discontinuous monitoring of the PDCCH during a discontinuous receive cycle is based on DPMI. In some cases, the DPMI field corresponds to one or more discontinuous PDCCH monitoring parameters. In some cases, one or more discontinuous PDCCH monitoring parameters indicate that monitoring of the PDCCH should be avoided at least during the active portion of the cycle. In some cases, one or more discontinuous PDCCH monitoring parameters indicate the time period for disabling PDCCH monitoring at least during the active portion of the cycle, based at least in part on the enabling of C-DRX (e.g., if Connection Mode DRX is enabled). In some cases, one or more discontinuous PDCCH monitoring parameters indicate that monitoring of the PDCCH is disabled until the subsequent active portion associated with a subsequent discontinuous receive cycle. In some cases, one or more discontinuous PDCCH monitoring parameters indicate that monitoring of the PDCCH is disabled based on determining whether a retransmission timer is enabled or disabled. In some cases, uplink transmissions include HARQ feedback, channel state information reporting, or probe reference signal transmission.

[0144] Monitoring component 1015 can enable discontinuous monitoring of the PDCCH based on received DCI messages. In some examples, monitoring component 1015 can disable monitoring of the PDCCH during a period in which at least one of PDSCH reception, downlink reference signal monitoring, uplink reference signal transmission, and channel reporting is enabled. In some examples, monitoring component 1015 can disable monitoring of the PDCCH based on an identified type associated with DPMI until the subsequent active portion associated with a subsequent discontinuous reception cycle. In some examples, monitoring component 1015 can determine the period for disabling monitoring of the PDCCH based on an identified type associated with DPMI. In some cases, the period for disabling monitoring of the PDCCH occurs at least in part within the active portion of a discontinuous reception cycle based on C-DRX being enabled.

[0145] DRX component 1020 can determine that connected-mode discontinuous reception mode is disabled for the UE, wherein receiving a DCI message including this indication is based on the disabled connected-mode discontinuous reception mode. In some examples, DRX component 1020 can determine that connected-mode discontinuous reception mode is enabled for the UE. In some examples, DRX component 1020 can terminate monitoring of the PDCCH before the inactivity timer expires. In some cases, a discontinuous reception period including active and inactive portions is determined, wherein enabling discontinuous monitoring of the PDCCH includes: enabling discontinuous monitoring of the PDCCH during the discontinuous reception period, and disabling monitoring of the PDCCH includes: disabling monitoring of the PDCCH at least during the active portion of the discontinuous reception period.

[0146] Timer component 1025 can determine that a retransmission timer associated with a discontinuous reception period is disabled, wherein disabling monitoring of the PDCCH is based on determining that the retransmission timer is disabled. In some examples, timer component 1025 can determine that a retransmission timer associated with a discontinuous reception period is enabled. In some examples, timer component 1025 can enable monitoring of the PDCCH at least during the active portion of the reception period based on determining that the retransmission timer is enabled. In some examples, timer component 1025 can enable an inactivity timer based on receiving the PDCCH during the active portion of the reception period. In some cases, the inactivity timer is separate from the time period associated with discontinuous monitoring of the PDCCH.

[0147] Figure 11 A diagram of a system 1100 including device 1105 according to aspects of this disclosure is shown. Device 1105 may be an example of device 805, device 905, or UE 115 as described herein, or include components thereof. Device 1105 may include components for bidirectional voice and data communication, including components for transmitting and receiving communications, including a UE communication manager 1110, an I / O controller 1115, a transceiver 1120, an antenna 1125, a memory 1130, and a processor 1140. These components may communicate electronically via one or more buses (e.g., bus 1145).

[0148] The UE communication manager 1110 can receive DCI messages, which include an indication to enable discontinuous monitoring of the PDCCH, an indication to enable discontinuous monitoring of the PDCCH based on the received DCI message, and an indication to disable monitoring of the PDCCH during at least one of the following time periods: PDSCH reception, downlink reference signal monitoring, uplink reference signal transmission, and channel reporting.

[0149] The device 1105 described herein can be implemented to achieve one or more potential advantages. Various implementations can enable power savings in the device 1105. At least one implementation allows the processor 1140 of the device 1105 (e.g., a processor controlling the UE communication manager 1110 or incorporated into the UE communication manager 1110) to disable monitoring of the PDCCH during a time period while performing other radio operation CSI-RS monitoring, CSI reporting, and SRS transmissions. At least one implementation allows the processor 1140 of the device 1105 to disable monitoring of the PDCCH during the active portion of a DRX cycle while performing other radio operation CSI-RS monitoring, CSI reporting, and SRS transmissions during that active portion of the DRX cycle.

[0150] I / O controller 1115 can manage the input and output signals of device 1105. I / O controller 1115 can also manage peripheral devices not integrated into device 1105. In some cases, I / O controller 1115 can represent a physical connection or port to an external peripheral device. In some cases, I / O controller 1115 can utilize, for example... MS- MS- The operating system or another known operating system. In other cases, the I / O controller 1115 may represent or interact with a modem, keyboard, mouse, touchscreen, or similar device. In some cases, the I / O controller 1115 may be implemented as part of the processor. In some cases, the user may interact with the device 1105 via the I / O controller 1115 or via hardware components controlled by the I / O controller 1115.

[0151] As described above, transceiver 1120 can communicate bidirectionally via one or more antennas, wired or wireless links. For example, transceiver 1120 can represent a wireless transceiver and can communicate bidirectionally with another wireless transceiver. Transceiver 1120 may also include a modem for modulating packets and providing the modulated packets to the antenna for transmission, and for demodulating packets received from the antenna. In some cases, device 1105 may include a single antenna 1125. However, in some cases, device 1105 may have more than one antenna 1125, which may be able to transmit or receive multiple wireless transmissions simultaneously.

[0152] Memory 1130 may include RAM and ROM. Memory 1130 may store computer-readable, computer-executable code 1135, which includes instructions that, when executed, cause processor 1140 to perform the various functions described herein. In some cases, memory 1130 may contain a BIOS, which controls basic hardware or software operations, such as interaction with peripheral components or devices.

[0153] Code 1135 may include instructions for implementing aspects of this disclosure, including instructions for supporting wireless communication. Code 1135 may be stored in a non-transitory computer-readable medium such as system memory or other types of memory. In some cases, code 1135 may not be directly executed by processor 1140, but may enable a computer (e.g., when compiled and executed) to perform the functions described herein.

[0154] Processor 1140 may include intelligent hardware devices (e.g., general-purpose processors, DSPs, CPUs, microcontrollers, ASICs, FPGAs, programmable logic devices, discrete gate or transistor logic components, discrete hardware components, or any combination thereof). In some cases, processor 1140 may be configured to operate a memory array using a memory controller. In other cases, the memory controller may be integrated into processor 1140. Processor 1140 may be configured to execute computer-readable instructions stored in memory (e.g., memory 1130) to cause device 1105 to perform various functions (e.g., functions or tasks supporting discontinuous downlink channel monitoring).

[0155] Figure 12 A block diagram 1200 of a device 1205 according to an aspect of this disclosure is shown. Device 1205 may be an example of an aspect of base station 105 as described herein. Device 1205 may include a receiver 1210, a base station communication manager 1215, and a transmitter 1220. Device 1205 may also include a processor. Each of these components may communicate with each other (e.g., via one or more buses).

[0156] Receiver 1210 can 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 discontinuous downlink channel monitoring). This information can be passed to other components of device 1205. Receiver 1210 can serve as a reference. Figure 15 Examples of aspects of the transceiver 1520 described. The receiver 1210 may utilize a single antenna or an array of antennas.

[0157] Base station communication manager 1215 can determine whether discontinuous monitoring of PDCCH is enabled or disabled for the UE, and send a DCI message including an indication that discontinuous PDCCH monitoring is enabled or disabled for the UE during at least one of the following time periods: PDSCH reception, downlink reference signal monitoring, uplink reference signal transmission, and signal reporting. Base station communication manager 1215 may be an example of an aspect of base station communication manager 1510 described herein.

[0158] The base station communication manager 1215 or its sub-components may be implemented in hardware, processor-executable code (e.g., software or firmware), or any combination thereof. If implemented in processor-executable code, the functionality of the base station communication manager 1215 or its sub-components may be performed by a general-purpose processor, DSP, application-specific integrated circuit (ASIC), 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 this disclosure.

[0159] The base station communication manager 1215 or its sub-components may be physically located in various locations, including being distributed such 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 this disclosure, the base station communication manager 1215 or its sub-components may be separate and distinct components. In some examples, the base station communication manager 1215 or its sub-components may be combined with one or more other hardware components, including but not limited to input / output (I / O) components, transceivers, network servers, other computing devices, one or more other components described in this disclosure, or combinations thereof, according to various aspects of this disclosure.

[0160] Transmitter 1220 can transmit signals generated by other components of device 1205. In some examples, transmitter 1220 may be co-located with receiver 1210 in a transceiver assembly. For example, transmitter 1220 may be a reference... Figure 15 Examples of aspects of the transceiver 1520 described. The transmitter 1220 may utilize a single antenna or an array of antennas.

[0161] Figure 13 A block diagram 1300 of device 1305 according to an aspect of this disclosure is shown. Device 1305 may be an example of an aspect of device 1205 or base station 105 described herein. Device 1305 may include receiver 1310, base station communication manager 1315, and transmitter 1330. Device 1305 may also include a processor. Each of these components may communicate with each other (e.g., via one or more buses).

[0162] Receiver 1310 can 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 discontinuous downlink channel monitoring). This information can be passed to other components of device 1305. Receiver 1310 can serve as a reference. Figure 15 Examples of aspects of the transceiver 1520 described. The receiver 1310 may utilize a single antenna or an array of antennas.

[0163] Base station communication manager 1315 may be an example of an aspect of base station communication manager 1215 as described herein. Base station communication manager 1315 may include monitoring component 1320 and messaging component 1325. Base station communication manager 1315 may be an example of an aspect of base station communication manager 1510 described herein. Monitoring component 1320 may determine whether discontinuous monitoring of PDCCH is enabled or disabled for the UE. Messaging component 1325 may send a DCI message that includes an indication of whether discontinuous PDCCH monitoring is enabled or disabled for the UE during at least one of the following time periods: PDSCH reception, downlink reference signal monitoring, uplink reference signal transmission, and channel reporting.

[0164] Transmitter 1330 can transmit signals generated by other components of device 1305. In some examples, transmitter 1330 may be co-located with receiver 1310 in a transceiver assembly. For example, transmitter 1330 may be a reference... Figure 15 Examples of various aspects of the transceiver 1520 are described. The transmitter 1330 may utilize a single antenna or an array of antennas.

[0165] Figure 14 A block diagram 1400 of a base station communication manager 1405 according to an aspect of this disclosure is shown. The base station communication manager 1405 may be an example of an aspect of the base station communication manager 1215, base station communication manager 1315, or base station communication manager 1510 described herein. The base station communication manager 1405 may include a monitoring component 1410, a messaging component 1415, and a DRX component 1420. Each of these components may communicate with each other directly or indirectly (e.g., via one or more buses).

[0166] Monitoring component 1410 can determine whether discontinuous monitoring of the PDCCH is enabled or disabled for the UE. Message component 1415 can send a DCI message including an indication of whether discontinuous PDCCH monitoring is enabled or disabled for the UE during at least one of the following time periods: PDSCH reception, downlink reference signal monitoring, uplink reference signal transmission, and channel reporting. In some examples, message component 1415 can assign a type associated with DPMI, where the type corresponds to whether the UE has enabled PDCCH monitoring at least during the active portion of the time. In some examples, message component 1415 can assign a DPMI field in the DCI message for downlink data transmission or uplink data transmission, or both, and this DPMI field includes an indication of whether discontinuous PDCCH monitoring is enabled.

[0167] In some cases, the indication includes DPMI. In some cases, the DPMI field corresponds to one or more discontinuous PDCCH monitoring parameters. In some cases, the one or more discontinuous PDCCH monitoring parameters indicate that the UE should avoid disabling PDCCH monitoring at least during the active portion. In some cases, the one or more discontinuous PDCCH monitoring parameters indicate the time period for which the UE should disable PDCCH monitoring at least during the active portion. In some cases, the one or more discontinuous PDCCH monitoring parameters indicate that the UE should disable PDCCH monitoring until the subsequent active portion associated with the subsequent discontinuous reception cycle. In some cases, the one or more discontinuous PDCCH monitoring parameters indicate that the UE should disable PDCCH monitoring based on an enabled or disabled retransmission timer. DRX component 1420 can determine that the connected-mode discontinuous reception mode is disabled for the UE, wherein sending DCI messages is based on the connected-mode discontinuous reception mode being disabled. In some examples, DRX component 1420 can determine a discontinuous reception cycle that includes both active and inactive portions.

[0168] Figure 15 A diagram of a system 1500 including device 1505 according to aspects of this disclosure is shown. Device 1505 may be an example of device 1205, device 1305, or base station 105 described herein, or include components thereof. Device 1505 may include components for bidirectional voice and data communication, including components for transmitting and receiving communications, including base station communication manager 1510, network communication manager 1515, transceiver 1520, antenna 1525, memory 1530, processor 1540, and inter-station communication manager 1545. These components may communicate electronically via one or more buses (e.g., bus 1550).

[0169] The base station communication manager 1510 can determine whether discontinuous monitoring of the PDCCH is enabled or disabled for the UE, and send a DCI message that includes an indication of whether discontinuous PDCCH monitoring is enabled or disabled for the UE during at least one of the following time periods: PDSCH reception, downlink reference signal monitoring, uplink reference signal transmission, and channel reporting.

[0170] The network communication manager 1515 can manage communication with the core network (e.g., via one or more wired backhaul links). For example, the network communication manager 1515 can manage the transmission of data communication by client devices (such as one or more UEs 115).

[0171] As described above, transceiver 1520 can communicate bidirectionally via one or more antennas, wired or wireless links. For example, transceiver 1520 can represent a wireless transceiver and can communicate bidirectionally with another wireless transceiver. Transceiver 1520 may also include a modem for modulating packets and providing the modulated packets to the antenna for transmission, and for demodulating packets received from the antenna. In some cases, device 1505 may include a single antenna 1525. However, in some cases, device 1505 may have more than one antenna 1525, which may be able to transmit or receive multiple wireless transmissions simultaneously.

[0172] Memory 1530 may include RAM, ROM, or a combination thereof. Memory 1530 may store computer-readable code 1535 including instructions that, when executed by a processor (e.g., processor 1540), cause the device to perform the various functions described herein. In some cases, memory 1530 may include a BIOS, which controls basic hardware or software operations, such as interaction with peripheral components or devices.

[0173] Code 1535 may include instructions for implementing aspects of this disclosure, including instructions for supporting wireless communication. Code 1535 may be stored in a non-transitory computer-readable medium such as system memory or other types of memory. In some cases, code 1535 may not be directly executed by processor 1540, but may enable a computer (e.g., when compiled and executed) to perform the functions described herein.

[0174] Processor 1540 may include intelligent hardware devices (e.g., general-purpose processors, DSPs, CPUs, microcontrollers, ASICs, FPGAs, programmable logic devices, discrete gate or transistor logic components, discrete hardware components, or any combination thereof). In some cases, processor 1540 may be configured to operate a memory array using a memory controller. In some cases, the memory controller may be integrated into processor 1540. Processor 1540 may be configured to execute computer-readable instructions stored in memory (e.g., memory 1530) to cause device 1505 to perform various functions (e.g., functions or tasks supporting discontinuous downlink channel monitoring).

[0175] Inter-site communication manager 1545 can manage communication with other base stations 105 and may include a controller or scheduler for controlling communication with UE 115 and with other base stations 105. For example, inter-site communication manager 1545 can coordinate the scheduling of transmissions to UE 115 for various interference mitigation techniques, such as beamforming or joint transmission. In some examples, inter-site communication manager 1545 may provide an X2 interface within LTE / LTE-A wireless communication network technology to facilitate communication between base stations 105.

[0176] Figure 16 A flowchart of method 1600 according to an aspect of this disclosure is shown. Operation of method 1600 can be implemented by a UE 115 or its components as described herein. For example, operation of method 1600 can be implemented by, as referenced... Figures 8 to 11 The UE communication manager is executed. In some examples, the UE can execute a set of instructions to control the UE's functional elements to perform the functions described below. Additionally or alternatively, the UE can use dedicated hardware to perform various aspects of the functions described below.

[0177] At point 1605, the UE may receive a DCI message including an indication to enable discontinuous monitoring of the PDCCH. Operation at point 1605 can be performed according to the methods described herein. In some examples, aspects of operation at point 1605 may be determined by reference to [reference needed]. Figures 8 to 11 The described message component is executed.

[0178] At point 1610, the UE can enable discontinuous monitoring of the PDCCH based on the received DCI message. The operation of point 1610 can be performed according to the methods described herein. In some examples, aspects of the operation of point 1610 can be derived from, as referenced... Figures 8 to 11 The described monitoring component is executed.

[0179] At point 1615, the UE can disable PDCCH monitoring during at least one of the following time periods: PDSCH reception, downlink reference signal monitoring, uplink reference signal transmission, and channel reporting. Operation at point 1615 can be performed according to the methods described herein. In some examples, aspects of operation at point 1615 can be determined by reference to... Figures 8 to 11 The described monitoring component is executed.

[0180] Figure 17 A flowchart of method 1700 according to an aspect of this disclosure is shown. Operation of method 1700 may be implemented by UE 115 or its components as described herein. For example, operation of method 1700 may be implemented by, as referenced... Figures 8 to 11The UE communication manager is described in the following examples. In some examples, the UE can execute a set of instructions to control the UE's functional elements to perform the functions described below. Additionally or alternatively, the UE can use dedicated hardware to perform aspects of the functions described below.

[0181] At point 1705, the UE can determine the DRX cycle, including both active and inactive portions. Operation at point 1705 can be performed according to the methods described herein. In some examples, aspects of operation at point 1705 can be derived from, as referenced... Figures 8 to 11 The described DRX component is executed.

[0182] At point 1710, the UE can enable discontinuous monitoring of the PDCCH during the DRX cycle. Operation at point 1710 can be performed according to the methods described herein. In some examples, aspects of operation at point 1710 can be derived from, as referenced... Figures 8 to 11 The described monitoring component is executed.

[0183] At point 1715, the UE can disable PDCCH monitoring at least during the active portion of the DRX cycle, in which at least one of PDSCH reception, downlink reference signal monitoring, uplink reference signal transmission, and channel reporting is enabled. Operation at point 1715 can be performed according to the methods described herein. In some examples, aspects of operation at point 1715 can be determined by reference to... Figures 8 to 11 The monitoring component described is used to perform this.

[0184] Figure 18 A flowchart of a method 1800 supporting discontinuous downlink channel monitoring according to aspects of this disclosure is shown. Operation of method 1800 can be implemented by a base station 105 or its components as described herein. For example, operation of method 1800 can be implemented by, as referenced... Figures 12 to 15 The base station communication manager is executed. In some examples, the base station may execute a set of instructions to control the functional elements of the base station to perform the functions described below. Additionally or alternatively, the base station may use dedicated hardware to perform aspects of the functions described below.

[0185] At point 1805, the base station can determine whether discontinuous monitoring of the PDCCH is enabled or disabled for the UE. The operation at point 1805 can be performed according to the methods described herein. In some examples, aspects of the operation at point 1805 can be determined by reference to [reference needed]. Figures 12 to 15 The described monitoring component is executed.

[0186] At 1810, the base station can send a DCI message that includes an indication of whether discontinuous PDCCH monitoring is enabled or disabled for the UE during a time period in which at least one of PDSCH reception, downlink reference signal monitoring, uplink reference signal transmission, and channel reporting is enabled. Operation of 1810 can be performed according to the methods described herein. In some examples, aspects of the operation of 1810 can be determined by reference to... Figures 12 to 15 The described message component is executed.

[0187] It should be noted that the methods described herein depict possible implementations, and the operations and steps can be rearranged or otherwise modified, and other implementations are possible. Furthermore, aspects from two or more methods can be combined.

[0188] The following provides an overview of various aspects of this application:

[0189] Aspect 1: A method for wireless communication at a UE, comprising: receiving a DCI message including an indication to enable discontinuous monitoring of a PDCCH; enabling discontinuous monitoring of the PDCCH at least in part based on the received DCI message; and disabling monitoring of the PDCCH during a time period in which at least one of PDSCH, downlink reference signal monitoring, uplink reference signal transmission, and channel reporting is enabled.

[0190] Aspect 2: The method according to aspect 1 further includes: determining a DRX cycle including an active portion and an inactive portion, wherein enabling discontinuous monitoring of the PDCCH includes: enabling discontinuous monitoring of the PDCCH during the DRX cycle, and disabling monitoring of the PDCCH includes: disabling monitoring of the PDCCH at least during the active portion of the DRX cycle.

[0191] Aspect 3: The method according to aspect 2, wherein the indication includes DPMI, and enabling discontinuous monitoring of PDCCH during the DRX cycle is at least in part based on the DPMI.

[0192] Aspect 4: The method according to aspect 3 further includes: determining that C-DRX mode is disabled for the UE, wherein receiving the DCI message including the indication is at least partially based on the C-DRX mode being disabled.

[0193] Aspect 5: The method according to any one of Aspects 3 to 4 further includes: identifying the type associated with the DPMI; and determining, at least in part, whether to enable monitoring of the PDCCH at least during the active period based on the identified type associated with the DPMI.

[0194] Aspect 6: The method according to aspect 5 further includes: disabling monitoring of the PDCCH at least in part based on the identified type associated with the DPMI, until the subsequent activity portion associated with a subsequent DRX cycle.

[0195] Aspect 7: The method according to aspect 6 further includes: determining, at least in part, a time period for disabling monitoring of the PDCCH based on the identified type associated with the DPMI.

[0196] Aspect 8: The method according to aspect 7, wherein, at least in part based on C-DRX being enabled, the time period for disabling monitoring of PDCCH occurs within the active portion of the DRX cycle.

[0197] Aspect 9: The method according to any one of aspects 5 to 8 further includes: determining that a retransmission timer associated with the DRX cycle is disabled, wherein disabling monitoring of the PDCCH is based at least in part on determining that the retransmission timer is disabled.

[0198] Aspect 10: The method according to any one of aspects 5 to 9 further includes: determining that a retransmission timer associated with the DRX cycle is enabled; and, based at least in part on determining that the retransmission timer is enabled, enabling monitoring of the PDCCH at least during the active portion of the process.

[0199] Aspect 11: The method according to any one of aspects 3 to 10 further includes: identifying a DPMI field in a received DCI message for downlink data transmission or uplink data transmission, the DPMI field including an indication of whether discontinuous PDCCH monitoring is enabled by the received DCI message, wherein disabling monitoring of the PDCCH is based at least in part on the DPMI field in the received DCI message.

[0200] Aspect 12: According to the method of aspect 11, wherein the DPMI field corresponds to one or more non-continuous PDCCH monitoring parameters.

[0201] Aspect 13: The method according to aspect 12, wherein the one or more non-continuous PDCCH monitoring parameters indicate that monitoring of the PDCCH should be avoided at least during the active period.

[0202] Aspect 14: The method according to any one of aspects 12 to 13, wherein the one or more non-continuous PDCCH monitoring parameters indicate a period of time for disabling monitoring of the PDCCH at least during the active portion.

[0203] Aspect 15: The method according to any one of aspects 12 to 14, wherein the one or more discontinuous PDCCH monitoring parameters indicate that monitoring of the PDCCH is disabled until the subsequent activity portion associated with a subsequent DRX cycle.

[0204] Aspect 16: The method according to any one of aspects 12 to 15, wherein the one or more discontinuous PDCCH monitoring parameters indicate that monitoring of the PDCCH is disabled at least in part based on determining whether the retransmission timer is enabled or disabled.

[0205] Aspect 17: The method according to any one of aspects 2 to 16 further includes: sending an uplink transmission during the active portion while disabling monitoring of the PDCCH, wherein the uplink transmission includes HARQ feedback, CSI report, or SRS transmission.

[0206] Aspect 18: The method according to any one of aspects 2 to 17 further includes: enabling an inactivity timer based at least in part on receiving the PDCCH during the active portion, wherein the inactivity timer is separate from the time period associated with discontinuous monitoring of the PDCCH.

[0207] Aspect 19: The method according to aspect 18 further includes: determining that C-DRX mode is enabled for the UE; and terminating monitoring of the PDCCH before the inactivity timer expires.

[0208] Aspect 20: A method for wireless communication at a base station, comprising: determining whether discontinuous monitoring of PDCCH is enabled or disabled for a UE; and transmitting a DCI message during a time period in which at least one of PDSCH reception, downlink reference signal monitoring, uplink reference signal transmission, and channel reporting is enabled, the DCI message including an indication of whether discontinuous PDCCH monitoring is enabled or disabled for the UE.

[0209] Aspect 21: The method according to aspect 20 further includes: determining that C-DRX mode is disabled for the UE, wherein sending the DCI message is based at least in part on the C-DRX mode being disabled.

[0210] Aspect 22: The method according to any one of aspects 20 to 21 further includes: determining a DRX cycle comprising an active portion and an inactive portion, wherein the indication includes DPMI.

[0211] Aspect 23: The method according to aspect 22 further includes: assigning a type associated with the DPMI, wherein the type corresponds to whether the UE will enable monitoring of the PDCCH at least during the active portion.

[0212] Aspect 24: The method according to any one of aspects 22 to 23 further includes: allocating a DPMI field in the DCI message for downlink data transmission or uplink data transmission or both, the DPMI field including an indication of whether non-continuous PDCCH monitoring is enabled, wherein the DPMI field corresponds to one or more non-continuous PDCCH monitoring parameters.

[0213] Aspect 25: The method according to aspect 24, wherein the one or more discontinuous PDCCH monitoring parameters instruct the UE to avoid disabling monitoring of the PDCCH at least during the active portion.

[0214] Aspect 26: The method according to any one of aspects 24 to 25, wherein the one or more discontinuous PDCCH monitoring parameters are at least partially based on the C-DRX mode being enabled to indicate a period of time during which the UE disables monitoring of the PDCCH at least during the active portion.

[0215] Aspect 27: The method according to any one of aspects 24 to 26, wherein the one or more discontinuous PDCCH monitoring parameters instruct the UE to disable monitoring of the PDCCH until the subsequent activity portion associated with a subsequent DRX cycle.

[0216] Aspect 28: The method according to any one of aspects 24 to 27, wherein the one or more discontinuous PDCCH monitoring parameters instruct the UE to disable monitoring of the PDCCH at least in part based on an enabled or disabled retransmission timer.

[0217] Aspect 29: 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 methods of any one of Aspects 1 to 19.

[0218] Aspect 30: An apparatus for wireless communication at a UE, comprising at least one component for performing the method of any one of aspects 1 to 19.

[0219] Aspect 31: A non-transitory computer-readable medium storing code for wireless communication at a UE, the code including instructions executable by a processor to perform the methods of any one of aspects 1 to 19.

[0220] Aspect 32: An apparatus for wireless communication 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 methods of any one of aspects 20 to 28.

[0221] Aspect 33: An apparatus for wireless communication at a base station, comprising at least one component for performing the method of any one of aspects 20 to 28.

[0222] Aspect 34: A non-transitory computer-readable medium storing code for wireless communication at a base station, the code including instructions executable by a processor to perform the methods of any one of aspects 20 to 28.

[0223] While aspects of LTE, LTE-A, LTE-A Pro, or NR systems may be described for illustrative purposes, and the terms LTE, LTE-A, LTE-A Pro, or NR may be used in most of the description, the techniques described herein are applicable beyond LTE, LTE-A, LTE-A Pro, or NR networks. For example, the techniques described may be applicable to a variety of other wireless communication systems, such as Ultra Mobile Broadband (UMB), IEEE 802.11 (Wi-Fi), IEEE 802.16 (WiMAX), IEEE 802.20, Flash-OFDM, and other systems and radio technologies not explicitly mentioned herein.

[0224] The information and signals described herein can be represented using any of a variety of different techniques and skills. For example, data, instructions, commands, information, signals, bits, symbols, and chips that may be referenced throughout the description can be represented by voltage, current, electromagnetic waves, magnetic fields or particles, light fields or particles, or any combination thereof.

[0225] The various illustrative blocks and components described in connection with this disclosure may be implemented or executed using a general-purpose processor, DSP, ASIC, CPU, FPGA or other programmable logic device, discrete gate or transistor logic, discrete hardware component or any combination thereof to perform the functions described herein. The general-purpose processor may be a microprocessor, but alternatively, it may be any processor, controller, microcontroller or state machine. The processor may also be implemented as a combination of computing devices (e.g., a combination of a DSP and a microprocessor, multiple microprocessors, one or more microprocessors combined with a DSP core, or any other such configuration).

[0226] The functions described herein can be implemented in hardware, software executed by a processor, firmware, or any combination thereof. If implemented in software executed by a processor, these functions can be stored or transmitted thereon as one or more instructions or code on a computer-readable medium. Other examples and implementations are within the scope of this disclosure and the appended claims. For example, due to the nature of software, the functions described herein can be implemented using software executed by a processor, hardware, firmware, hardwiring, or any combination thereof. Features implementing the functions can also be physically located in various locations, including being distributed such that portions of the function are implemented in different physical locations.

[0227] Computer-readable media includes both non-transitory computer storage media and communication media, with the latter including any medium that facilitates the transfer of a computer program from one place to another. Non-transitory storage media can be any available medium accessible by a general-purpose or special-purpose computer. By way of example, and not limitation, non-transitory computer-readable media can include random access memory (RAM), read-only memory (ROM), electrically erasable programmable ROM (EEPROM), flash memory, compact disc (CD) ROM or other optical disc storage, magnetic disk storage or other magnetic storage devices, or any other non-transitory medium that can be used to carry or store desired program code components in the form of instructions or data structures and is accessible by a general-purpose or special-purpose computer or a general-purpose or special-purpose processor. Furthermore, any connection is properly referred to as computer-readable media. For example, if software is transmitted from a website, server, or other remote source using coaxial cable, fiber optic cable, twisted pair, digital subscriber line (DSL), or wireless technology (such as infrared, radio, and microwave), then coaxial cable, fiber optic cable, twisted pair, or DSL or wireless technology (such as infrared, radio, and microwave) is included in the definition of computer-readable media. As used herein, discs and platters include CDs, laser discs, optical discs, digital multifunction discs (DVDs), floppy disks, and Blu-ray discs, where discs typically reproduce data magnetically, while platters reproduce data optically using lasers. Combinations of the above are also included within the scope of computer-readable media.

[0228] As used herein, including in the claims, “or” as used in a list of items (e.g., a list of items beginning with phrases such as “at least one of…” or “one or more of…”) signifies an inclusive list, such that, for example, a list of at least one of A, B, or C means A or B or C or AB or AC or BC or ABC (i.e., A, B, and C). Furthermore, as used herein, the phrase “based on” should not be construed as a reference to a closed set of conditions. For example, an example step described as “based on condition A” could be based on conditions A and B without departing from the scope of this disclosure. In other words, as used herein, the phrase “based on” should be interpreted in the same manner as the phrase “at least partially based on.” Moreover, as used herein, the phrase “set” should be interpreted as including the possibility of a set of members. That is, the phrase “set” should be interpreted in the same manner as “one or more.”

[0229] In the accompanying drawings, similar components or features may have the same reference numeral. Furthermore, various components of the same type can be distinguished by adding a dash after the reference numeral and by a second label to differentiate between similar components. If only the first reference numeral is used in the specification, the description applies to any similar component having the same first reference numeral, regardless of the second or other subsequent reference numerals.

[0230] The description herein, illustrated with reference to the accompanying drawings, describes an example configuration and does not represent all possible examples or all examples within the scope of the claims. The term "example" as used herein means "serving as an example, instance, or illustration," and not "preferred" or "superior to other examples." Detailed descriptions include specific details to provide an understanding of the described techniques. However, these techniques can be practiced without these specific details. In some cases, known structures and devices are shown in block diagram form to avoid obscuring the concepts of the described examples.

[0231] The description provided herein is intended to enable those skilled in the art to make or use this disclosure. Various modifications to this disclosure will be readily 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 this disclosure. Therefore, this disclosure is not limited to the examples and designs described herein, but should be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An apparatus for wireless communication, comprising: at least one processor; at least one memory coupled with the at least one processor and having instructions stored therein that are executable by the at least one processor, alone or in combination, to cause the apparatus to: receive a downlink control information message comprising an indication to enable discontinuous monitoring of a physical downlink control channel; based at least in part on the received downlink control information message, enable the discontinuous monitoring of the physical downlink control channel; and disable monitoring of the physical downlink control channel during a time period in which at least one of a physical downlink shared channel, downlink reference signal monitoring, uplink reference signal transmission, and channel reporting is enabled. the instructions executable by the at least one processor to further cause the apparatus to:

2. The apparatus of claim 1, wherein, determine a discontinuous reception cycle comprising an active portion and an inactive portion, wherein the instructions executable by the at least one processor to enable the discontinuous monitoring of the physical downlink control channel are executable to cause the apparatus to: enable the discontinuous monitoring of the physical downlink control channel during the discontinuous reception cycle, and wherein the instructions executable by the at least one processor to disable monitoring of the physical downlink control channel are executable to cause the apparatus to: disable monitoring of the physical downlink control channel at least during the active portion of the discontinuous reception cycle. the indication comprises a discontinuous physical downlink control channel monitoring indication, wherein the instructions executable by the at least one processor to enable the discontinuous monitoring of the physical downlink control channel during the discontinuous reception cycle are executable based at least in part on the discontinuous physical downlink control channel monitoring indication.

3. The apparatus of claim 2, wherein, the instructions executable by the at least one processor to further cause the apparatus to:

4. The apparatus of claim 3, wherein, determine that a connected mode discontinuous reception mode is disabled for the apparatus, wherein the instructions to receive the downlink control information message comprising the indication are executable by the at least one processor based at least in part on the connected mode discontinuous reception mode being disabled. the instructions executable by the at least one processor to further cause the apparatus to:

5. The apparatus of claim 3, wherein, identify a type associated with the discontinuous physical downlink control channel monitoring indication; and determine whether to enable monitoring of the physical downlink control channel at least during the active portion based at least in part on the identified type associated with the discontinuous physical downlink control channel monitoring indication. the instructions executable by the at least one processor to further cause the apparatus to:

6. The apparatus of claim 5, wherein, disable the monitoring of the physical downlink control channel based at least in part on the identified type associated with the discontinuous physical downlink control channel monitoring indication until a subsequent active portion associated with a subsequent discontinuous reception cycle. the instructions executable by the at least one processor to further cause the apparatus to:

7. The apparatus of claim 6, wherein, ​ determining the time period for disabling the monitoring of the physical downlink control channel based at least in part on the identified type associated with the discontinuous physical downlink control channel monitoring indication.

8. The apparatus of claim 7, wherein, the time period for disabling the monitoring of the physical downlink control channel occurs within the active portion of the discontinuous reception cycle based at least in part on connected mode discontinuous reception being enabled.

9. The apparatus of claim 5, wherein, the instructions executable by the at least one processor to further cause the apparatus to: determine that a retransmission timer associated with the discontinuous reception cycle is disabled, wherein the instructions to disable the monitoring of the physical downlink control channel are executable by the at least one processor based at least in part on determining that the retransmission timer is disabled.

10. The apparatus of claim 5, wherein, the instructions executable by the at least one processor to further cause the apparatus to: determine that a retransmission timer associated with the discontinuous reception cycle is enabled; and enable monitoring of the physical downlink control channel at least during the active portion based at least in part on determining that the retransmission timer is enabled.

11. The apparatus of claim 3, wherein, the instructions executable by the at least one processor to further cause the apparatus to: identify a discontinuous physical downlink control channel monitoring indication field in a received downlink control information message for a downlink data transmission or an uplink data transmission, the discontinuous physical downlink control channel monitoring indication field comprising an indication of whether discontinuous physical downlink control channel monitoring is enabled by the received downlink control information message, wherein the instructions to disable monitoring of the physical downlink control channel are executable by the at least one processor based at least in part on the discontinuous physical downlink control channel monitoring indication field in the received downlink control information message.

12. The apparatus of claim 11, wherein, the discontinuous physical downlink control channel monitoring indication field corresponds to one or more discontinuous physical downlink control channel monitoring parameters.

13. The apparatus of claim 12, wherein, the one or more discontinuous physical downlink control channel monitoring parameters indicate to refrain from disabling the monitoring of the physical downlink control channel at least during the active portion.

14. The apparatus of claim 12, wherein, the one or more discontinuous physical downlink control channel monitoring parameters indicate the time period for disabling the monitoring of the physical downlink control channel at least during the active portion.

15. The apparatus of claim 12, wherein, the one or more discontinuous physical downlink control channel monitoring parameters indicate to disable the monitoring of the physical downlink control channel until a subsequent active portion associated with a subsequent discontinuous reception cycle.

16. The apparatus of claim 12, wherein, the one or more discontinuous physical downlink control channel monitoring parameters indicate to disable the monitoring of the physical downlink control channel based at least in part on determining whether a retransmission timer is enabled or disabled.

17. The apparatus of claim 2, wherein, the instructions executable by the at least one processor to further cause the apparatus to: transmit an uplink transmission during the active portion while disabling monitoring of the physical downlink control channel, wherein the uplink transmission includes hybrid automatic repeat request feedback, channel state information reporting, or sounding reference signal transmission.

18. The apparatus of claim 2, wherein, The instructions executable by the at least one processor further cause the apparatus to: enable an inactivity timer based at least in part on receiving the physical downlink control channel during the active portion, wherein the inactivity timer is separate from the time period associated with the discontinuous monitoring of the physical downlink control channel.

19. The apparatus of claim 18, wherein, The instructions executable by the at least one processor further cause the apparatus to: determine that a connected mode discontinuous reception mode is enabled for the apparatus; and terminate monitoring of the physical downlink control channel prior to expiration of the inactivity timer.

20. An apparatus for wireless communication, comprising: at least one processor; at least one memory coupled with the at least one processor and having instructions stored therein that are executable by the at least one processor, alone or in combination, to cause the apparatus to: determine whether to enable or disable discontinuous monitoring of a physical downlink control channel for a user equipment (UE); and transmit a downlink control information message including an indication of whether discontinuous physical downlink control channel monitoring is enabled or disabled for the UE during a time period in which at least one of a physical downlink shared channel reception, a downlink reference signal monitoring, an uplink reference signal transmission, and a channel report is enabled.

21. The apparatus of claim 20, wherein, The instructions to transmit the downlink control information message executable by the at least one processor to cause the apparatus to: determine that a connected mode discontinuous reception mode is disabled for the UE, wherein the instructions to transmit the downlink control information message are executable by the at least one processor based at least in part on the connected mode discontinuous reception mode being disabled.

22. The apparatus of claim 20, wherein, The instructions to transmit the downlink control information message executable by the at least one processor to cause the apparatus to: determine a discontinuous reception cycle including an active portion and an inactive portion, wherein the indication includes a discontinuous physical downlink control channel monitoring indication.

23. The apparatus of claim 22, wherein, The instructions to transmit the downlink control information message executable by the at least one processor to cause the apparatus to: assign a type associated with the discontinuous physical downlink control channel monitoring indication, wherein the type corresponds to whether the UE is to enable monitoring of the physical downlink control channel at least during the active portion.

24. The apparatus of claim 22, wherein, The instructions to transmit the downlink control information message executable by the at least one processor to cause the apparatus to: allocating a non-contiguous physical downlink control channel monitoring indication field in a downlink control information message for downlink data transmission or uplink data transmission or both, the non-contiguous physical downlink control channel monitoring indication field including an indication of whether non-contiguous physical downlink control channel monitoring is enabled, wherein the non-contiguous physical downlink control channel monitoring indication field corresponds to one or more non-contiguous physical downlink control channel monitoring parameters.

25. The apparatus of claim 24, wherein, the one or more non-contiguous physical downlink control channel monitoring parameters indicating to the UE to avoid disabling the monitoring of the physical downlink control channel at least during the active portion.

26. The apparatus of claim 24, wherein, the one or more non-contiguous physical downlink control channel monitoring parameters indicating to the UE to disable the monitoring of the physical downlink control channel at least during the active portion based at least in part on a connected mode discontinuous reception mode being enabled.

27. The apparatus of claim 24, wherein, the one or more non-contiguous physical downlink control channel monitoring parameters indicating to the UE to disable the monitoring of the physical downlink control channel until a subsequent active portion associated with a subsequent discontinuous reception cycle.

28. The apparatus of claim 24, wherein, the one or more non-contiguous physical downlink control channel monitoring parameters indicating to the UE to disable the monitoring of the physical downlink control channel based at least in part on an enabled or disabled retransmission timer.

29. A method for wireless communication at a user equipment, UE, comprising: receiving a downlink control information message, the downlink control information message including an indication to enable non-contiguous monitoring of a physical downlink control channel; based at least in part on the received downlink control information message, enabling the non-contiguous monitoring of the physical downlink control channel; and disabling monitoring of the physical downlink control channel during a time period in which at least one of physical downlink shared channel reception, downlink reference signal monitoring, uplink reference signal transmission, and channel reporting is enabled.

30. A method for wireless communication at a base station, comprising: determining whether to enable or disable non-contiguous monitoring of a physical downlink control channel for a user equipment, UE; and transmitting a downlink control information message, the downlink control information message including an indication of whether non-contiguous physical downlink control channel monitoring is enabled or disabled for the UE during a time period in which at least one of physical downlink shared channel reception, downlink reference signal monitoring, uplink reference signal transmission, and channel reporting is enabled.

31. An apparatus for wireless communication, comprising: means for receiving a downlink control information message, the downlink control information message including an indication to enable non-contiguous monitoring of a physical downlink control channel; means for enabling the non-contiguous monitoring of the physical downlink control channel based at least in part on the received downlink control information message; and means for disabling monitoring of the physical downlink control channel during a time period in which at least one of physical downlink shared channel reception, downlink reference signal monitoring, uplink reference signal transmission, and channel reporting is enabled.

32. An apparatus for wireless communication, comprising: means for determining whether discontinuous monitoring of a physical downlink control channel is enabled or disabled for a user equipment (UE); and means for transmitting a downlink control information message including an indication of whether discontinuous physical downlink control channel monitoring is enabled or disabled for the UE during a time period in which at least one of physical downlink shared channel reception, downlink reference signal monitoring, uplink reference signal transmission, and channel reporting is enabled.

33. A non-transitory computer-readable medium storing code for wireless communication, the code comprising instructions executable by one or more processors to: receive a downlink control information message including an indication to enable discontinuous monitoring of a physical downlink control channel; enable the discontinuous monitoring of the physical downlink control channel based at least in part on the received downlink control information message; and disable monitoring of the physical downlink control channel during a time period in which at least one of physical downlink shared channel reception, downlink reference signal monitoring, uplink reference signal transmission, and channel reporting is enabled.

34. A non-transitory computer-readable medium storing code for wireless communication, the code comprising instructions executable by one or more processors to: determine whether discontinuous monitoring of a physical downlink control channel is enabled or disabled for a user equipment (UE); and transmit a downlink control information message including an indication of whether discontinuous physical downlink control channel monitoring is enabled or disabled for the UE during a time period in which at least one of physical downlink shared channel reception, downlink reference signal monitoring, uplink reference signal transmission, and channel reporting is enabled.

35. A program product comprising instructions executable by one or more processors to: receive a downlink control information message including an indication to enable discontinuous monitoring of a physical downlink control channel; enable the discontinuous monitoring of the physical downlink control channel based at least in part on the received downlink control information message; and disable monitoring of the physical downlink control channel during a time period in which at least one of physical downlink shared channel reception, downlink reference signal monitoring, uplink reference signal transmission, and channel reporting is enabled.

36. A program product comprising instructions executable by one or more processors to: determine whether discontinuous monitoring of a physical downlink control channel is enabled or disabled for a user equipment (UE); and ​ transmitting a downlink control information message including an indication of whether discontinuous physical downlink control channel monitoring is enabled or disabled for the UE during a time period in which at least one of physical downlink shared channel reception, downlink reference signal monitoring, uplink reference signal transmission, and channel reporting is enabled.

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