Discontinuous Reception Signaling for a Wireless Communication System

Abstract

Methods and apparatuses for discontinuous reception signaling in a wireless communication system are described. A base station may determine a semi-persistent scheduling (SPS) configuration and a discontinuous reception configuration (DRX) associated with the semi-persistent scheduling (SPS) configuration for a user equipment (UE). The base station may transmit the SPS configuration to the UE. The SPS configuration may indicate one or more DRX parameters of the DRX configuration. The UE may receive the semi-persistent scheduling configuration from the base station. The UE may identify one or more DRX parameters of the discontinuous reception configuration based on the SPS configuration. The UE may monitor a downlink control channel according to the DRX configuration.

Description

[0001] Cross - reference

[0002] This patent application claims priority to Greek Patent Application No. 20190100518, filed on November 15, 2019, by DIMOU et al. and assigned to the assignee hereof, entitled "DISCONTINUOUS RECEPTION SIGNALING FOR WIRELESS COMMUNICATION SYSTEMS". Technical Field

[0003] The following generally relates to wireless communication and, more specifically, to discontinuous reception signaling for wireless communication systems. Background Art

[0004] Wireless communication systems are widely deployed to provide various types of communication content, such as voice, video, packet data, messaging, broadcasting, etc. These systems may be capable of supporting communication with multiple users by sharing available system resources (e.g., time, frequency, and power). Examples of such multi - access systems include fourth - generation (4G) systems, such as Long - Term Evolution (LTE) systems, LTE - Advanced (LTE - A) systems, or LTE - A Pro systems, and fifth - generation (5G) systems, which may be referred to as New Radio (NR) systems. These systems may employ techniques such as Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), Frequency Division Multiple Access (FDMA), Orthogonal Frequency Division Multiple Access (OFDMA), or Discrete Fourier Transform Spread Orthogonal Frequency Division Multiplexing (DFT - S - OFDM). A wireless multi - access communication system may include one or more base stations or one or more network access nodes, each simultaneously supporting communication for multiple communication devices, which may also be referred to as user equipment (UE).

[0005] In some wireless communication systems, a base station may configure discontinuous reception (DRX) configurations for a UE to save power at the UE. A DRX configuration may enable the UE to monitor resources during the active period of a DRX cycle and operate in a partial low - power state or a sleep state during the inactive period of the DRX cycle. In some examples, the base station may also configure one or more semi - persistent scheduling (SPS) configurations for the UE. When multiple SPS configurations are used for a UE operating according to a DRX configuration, it is possible that the UE may receive traffic (based on the SPS configuration or re - configuration) during the inactive period of the DRX configuration, which may result in latency, inefficient communication, and relatively high signaling overhead. Summary of the Invention

[0006] The described techniques relate to improved methods, systems, devices, and apparatuses for supporting discontinuous reception signaling for a wireless communication system. Generally, the described techniques enable a base station to jointly configure a discontinuous reception (DRX) configuration and a corresponding (e.g., linked) semi-persistent scheduling (SPS) configuration for a user equipment (UE). The base station may communicate SPS configuration information to the UE. The base station may also indicate to the UE a corresponding DRX configuration or a set of corresponding DRX parameters. In some examples, the SPS configuration information may include an indication of one or more DRX parameters of the DRX configuration. Additionally or alternatively, the SPS configuration information may include one or more SPS parameters of the SPS configuration, and the UE may determine one or more DRX parameters of the DRX configuration based on the one or more SPS parameters (e.g., because of a link between the SPS parameters and the DRX parameters). Such techniques may enable more efficient communication, prevent delays associated with receiving new traffic or configuration information during an inactive period of a DRX cycle, and reduce signaling overhead for configuring an SPS configuration and a set of DRX parameters for the UE.

[0007] A method for wireless communication at a UE is described. The method may include: receiving a first SPS configuration from a base station; identifying, based on the first SPS configuration, one or more DRX parameters of a first DRX configuration, wherein the first DRX configuration is associated with the first SPS configuration; and monitoring a downlink control channel according to the first DRX configuration.

[0008] An apparatus for wireless communication at a UE is described. The apparatus may include a processor, a memory coupled to the processor, and instructions stored in the memory. The instructions may be executable by the processor to cause the apparatus to: receive a first SPS configuration from a base station; identify, based on the first SPS configuration, one or more DRX parameters of a first DRX configuration, wherein the first DRX configuration is associated with the first SPS configuration; and monitor a downlink control channel according to the first DRX configuration.

[0009] Another apparatus for wireless communication at a UE is described. The apparatus may include means for: receiving a first SPS configuration from a base station; identifying, based on the first SPS configuration, one or more DRX parameters of a first DRX configuration, wherein the first DRX configuration is associated with the first SPS configuration; and monitoring a downlink control channel according to the first DRX configuration.

[0010] Describes a non - transitory computer - readable medium storing code for wireless communication at a UE. The code may include instructions executable by a processor to: receive a first SPS configuration from a base station; identify one or more DRX parameters of a first DRX configuration based on the first SPS configuration, where the first DRX configuration is associated with the first SPS configuration; and monitor a downlink control channel according to the first DRX configuration.

[0011] In some examples of the methods, apparatuses, and non - transitory computer - readable media described herein, identifying one or more DRX parameters may include operations, features, components, or instructions for: receiving an indication of the first DRX configuration jointly with the reception of the first SPS configuration.

[0012] In some examples of the methods, apparatuses, and non - transitory computer - readable media described herein, identifying one or more DRX parameters may further include operations, features, components, or instructions for: determining a DRX configuration identifier, a DRX parameter set identifier, an association of an SPS identifier with the DRX configuration identifier, or a combination thereof based on the indication of the first DRX configuration.

[0013] In some examples of the methods, apparatuses, and non - transitory computer - readable media described herein, identifying one or more DRX parameters may include operations, features, components, or instructions for: identifying one or more SPS parameters of the first SPS configuration; and determining, by the UE, one or more DRX parameters of the first DRX configuration based on the one or more SPS parameters.

[0014] In some examples of the methods, apparatuses, and non - transitory computer - readable media described herein, the one or more SPS parameters include the periodicity of the first SPS configuration, the start time of the first SPS configuration, or both.

[0015] In some examples of the methods, apparatuses, and non - transitory computer - readable media described herein, the one or more DRX parameters include one or more offsets of the first DRX configuration, the duration of one or more active periods of the first DRX configuration, or a combination thereof.

[0016] Some examples of the methods, apparatuses, and non - transitory computer - readable media described herein may further include operations, features, components, or instructions for: receiving a second SPS configuration from a base station; identifying one or more DRX parameters of a second DRX configuration at least partially based on the second SPS configuration, where the second DRX configuration may be associated with the second SPS configuration; and monitoring a downlink control channel according to the second DRX configuration.

[0017] In some examples of the methods, apparatuses, and non-transitory computer-readable media described herein, identifying one or more DRX parameters can include operations, features, components, or instructions for: receiving downlink control information from a base station indicating one or more DRX parameters.

[0018] In some examples of the methods, apparatuses, and non-transitory computer-readable media described herein, the downlink control information includes a first SPS configuration.

[0019] In some examples of the methods, apparatuses, and non-transitory computer-readable media described herein, identifying one or more DRX parameters can include operations, features, components, or instructions for: receiving media access control (MAC) control element (CE) signaling from a base station indicating one or more DRX parameters.

[0020] In some examples of the methods, apparatuses, and non-transitory computer-readable media described herein, the first DRX configuration includes one or more active periods of the UE that overlap with one or more resource assignments of the first SPS configuration.

[0021] In some examples of the methods, apparatuses, and non-transitory computer-readable media described herein, monitoring a downlink control channel according to the first DRX configuration can further include operations, features, components, or instructions for: monitoring the downlink control channel during one or more active periods of a cycle of the first DRX configuration; and entering a low power state after one or more active periods of the cycle.

[0022] A method of wireless communication at a base station is described. The method can include: determining a first SPS configuration for a UE; determining a first DRX configuration associated with the first SPS configuration; and transmitting the first SPS configuration to the UE, the first SPS configuration indicating one or more DRX parameters of the first DRX configuration.

[0023] An apparatus for wireless communication at a base station is described. The apparatus can include a processor, a memory coupled to the processor, and instructions stored in the memory. The instructions can be executed by the processor to cause the device: to determine a first SPS configuration for a UE; to determine a first DRX configuration associated with the first SPS configuration; and to transmit the first SPS configuration to the UE, the first SPS configuration indicating one or more DRX parameters of the first DRX configuration.

[0024] Another apparatus for wireless communication at a base station is described. The apparatus can include components for: determining a first SPS configuration for a UE; determining a first DRX configuration associated with the first SPS configuration; and transmitting the first SPS configuration to the UE, the first SPS configuration indicating one or more DRX parameters of the first DRX configuration.

[0025] Describes a non - transitory computer - readable medium storing code for wireless communication at a base station. The code can include instructions executable by a processor to: determine a first SPS configuration for a UE; determine a first DRX configuration associated with the first SPS configuration; and transmit the first SPS configuration to the UE, the first SPS configuration indicating one or more DRX parameters of the first DRX configuration.

[0026] In some examples of the methods, apparatuses, and non - transitory computer - readable media described herein, transmitting the first SPS configuration to the UE can include operations, features, components, or instructions for: jointly transmitting an indication of the first DRX configuration with the transmission of the first SPS configuration.

[0027] In some examples of the methods, apparatuses, and non - transitory computer - readable media described herein, one or more DRX parameters include one or more offsets of the first DRX configuration, the duration of one or more active periods of the first DRX configuration, or a combination thereof.

[0028] Some examples of the methods, apparatuses, and non - transitory computer - readable media described herein can further include operations, features, components, or instructions for: identifying one or more SPS parameters of the first SPS configuration.

[0029] In some examples of the methods, apparatuses, and non - transitory computer - readable media described herein, one or more SPS parameters include the periodicity of the first SPS configuration, the start time of the first SPS configuration, or both.

[0030] In some examples of the methods, apparatuses, and non - transitory computer - readable media described herein, one or more DRX parameters correspond to one or more SPS parameters.

[0031] Some examples of the methods, apparatuses, and non - transitory computer - readable media described herein can further include operations, features, components, or instructions for: determining a second SPS configuration for the UE; determining a second DRX configuration associated with the second SPS configuration; and transmitting the second SPS configuration to the UE, the second SPS configuration indicating one or more DRX parameters of the second DRX configuration.

[0032] Some examples of the methods, apparatuses, and non - transitory computer - readable media described herein can further include operations, features, components, or instructions for: transmitting downlink control information indicating one or more DRX parameters to the UE.

[0033] In some examples of the methods, apparatuses, and non - transitory computer - readable media described herein, the downlink control information includes the first SPS configuration.

[0034] Some examples of the methods, apparatuses, and non-transitory computer-readable media described herein may further include operations, features, components, or instructions for: transmitting MAC CE signaling to a UE indicating one or more DRX parameters.

[0035] Some examples of the methods, apparatuses, and non-transitory computer-readable media described herein may further include operations, features, components, or instructions for: transmitting one or more messages to a UE via resource blocks associated with a first SPS configuration, where the resource blocks overlap with one or more active periods of a first DRX configuration. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 Examples of wireless communication systems supporting discontinuous reception signaling for a wireless communication system in accordance with aspects of the present disclosure are shown.

[0037] Figure 2 Examples of wireless communication systems supporting discontinuous reception signaling for a wireless communication system in accordance with aspects of the present disclosure are shown.

[0038] Figure 3 Examples of process flows supporting discontinuous reception signaling for a wireless communication system in accordance with aspects of the present disclosure are shown.

[0039] Figure 4 and Figure 5 Block diagrams of devices supporting discontinuous reception signaling for a wireless communication system in accordance with aspects of the present disclosure are shown.

[0040] Figure 6 Block diagrams of communication managers supporting discontinuous reception signaling for a wireless communication system in accordance with aspects of the present disclosure are shown.

[0041] Figure 7 Diagrams of systems including devices supporting discontinuous reception signaling for a wireless communication system in accordance with aspects of the present disclosure are shown.

[0042] Figure 8 and Figure 9 Block diagrams of devices supporting discontinuous reception signaling for a wireless communication system in accordance with aspects of the present disclosure are shown.

[0043] Figure 10 Block diagrams of communication managers supporting discontinuous reception signaling for a wireless communication system in accordance with aspects of the present disclosure are shown.

[0044] Figure 11 Diagrams of systems including devices supporting discontinuous reception signaling for a wireless communication system in accordance with aspects of the present disclosure are shown.

[0045] Figures 12 to 15 A flowchart illustrating a method for supporting discontinuous reception signaling for a wireless communication system in accordance with aspects of the present disclosure is shown. Detailed Description

[0046] In some wireless communication systems, a user equipment (UE) may receive a discontinuous reception (DRX) configuration to save power at the UE. For example, the UE may be configured with DRX parameters corresponding to a DRX cycle. The UE may monitor a downlink control channel during an active period of the DRX cycle. The UE may limit power consumption (e.g., operate in a partial low-power state) by stopping to monitor the downlink control channel during an inactive period of the DRX cycle. In some examples, the UE may determine that it is not scheduled for transmission or reception for the remainder of the DRX cycle. In such examples, the UE may transition to a sleep mode and may not convey uplink data, downlink data, or control information until the next DRX cycle.

[0047] A base station may also configure a semi-persistent scheduling (SPS) configuration for the UE. The UE may receive or transmit SPS communications while operating in DRX. For example, the UE may monitor the downlink control channel during an initial active period at the start of the DRX cycle. In some cases, the UE may identify SPS resources, receive an SPS message on a downlink shared channel, and transmit feedback for the SPS message without receiving additional downlink grants or control information. However, if the SPS message is successfully received during the initial active period, the UE may stop monitoring the downlink control information outside of the initial active period. Although turning off downlink control channel monitoring in a low-power state may reduce power consumption at the UE, such techniques may also result in some latency and communication errors. For example, a base station may have multiple SPS configurations that are being used to communicate with the UE. Although some SPS configurations may include transmissions to the UE during the active period of the UE DRX configuration, other transmissions originating from the SPS configurations may occur during the inactive period of the DRX configuration for the UE. Thus, the UE may not be able to receive transmissions originating from multiple SPS configurations.

[0048] Techniques described herein may support a link between SPS configurations and DRX configurations to provide more efficient and reliable communication. For example, an SPS configuration in a set of SPS configurations may correspond to a DRX configuration or a set of DRX parameters (e.g., a one-to-one mapping). This link may provide an increased overlap between the active period of the DRX configuration and the SPS resources of the SPS configuration, which may result in reduced opportunities for latency and enable dynamic configuration of the UE with more efficient resource allocation.

[0049] Additionally or alternatively, the described techniques may support enhanced signaling of DRX parameters for a DRX configuration. For example, a base station may indicate a DRX configuration or a set of DRX parameters to a UE. In some examples, the base station may indicate DRX parameters via layer 1 signaling (e.g., downlink control information (DCI) or media access control (MAC) control element (CE)). In some examples, the DRX parameters may be associated with an SPS configuration. In such examples, the base station may jointly configure the SPS configuration and the associated DRX configuration (or a set of associated DRX parameters) for the UE. For example, the base station may transmit the SPS configuration to the UE. The base station may also indicate the associated DRX configuration or a set of associated DRX parameters to the UE, e.g., via layer 1 signaling. In some examples, the SPS configuration may include an indication of one or more DRX parameters of the DRX configuration. The indication may include a DRX configuration identifier, a DRX parameter set identifier, an association between the SPS configuration and the DRX configuration, or a combination thereof. Additionally or alternatively, the SPS configuration may include one or more SPS parameters. The UE may determine one or more DRX parameters of the DRX configuration based on the one or more SPS parameters (e.g., because of a link between the SPS parameters and the DRX parameters). Such signaling may reduce the signaling overhead associated with configuring DRX parameters for the UE associated with one of multiple SPS configurations.

[0050] Aspects of the present disclosure are initially described in the context of a wireless communication system. Aspects of the present disclosure are further illustrated and described with reference to process flows, apparatus diagrams, system diagrams, and flowcharts related to discontinuous reception signaling for a wireless communication system.

[0051] Figure 1 An example of a wireless communication system supporting discontinuous reception signaling for a wireless communication system 100 in accordance with aspects of the present disclosure is shown. The wireless communication system 100 may include one or more base stations 105, one or more UEs 115, and a core network 130. In some examples, the wireless communication system 100 may be a Long Term Evolution (LTE) network, an LTE-Advanced (LTE-A) network, an LTE-A Pro network, or a New Radio (NR) network. In some examples, the wireless communication system 100 may support enhanced broadband communication, ultra-reliable (e.g., mission-critical) communication, low-latency communication, communication with low-cost and low-complexity devices, or any combination thereof.

[0052] Base stations 105 can be dispersed throughout a geographical area to form a wireless communication system 100, and can be devices in different forms or with different capabilities. The base stations 105 and the UEs 115 can communicate wirelessly via one or more communication links 125. Each base station 105 can provide a coverage area 110, and the UEs 115 and the base stations 105 can establish one or more communication links 125 within the coverage area. The coverage area 110 can be an example of a geographical area within which the base stations 105 and the UEs 115 can support signal communication according to one or more radio access technologies.

[0053] The UEs 115 can be dispersed throughout the coverage area 110 of the wireless communication system 100, and each UE 115 can be stationary or mobile or both at different times. The UEs 115 can be devices in different forms or with different capabilities. Figure 1 Some example UEs 115 are shown. The UEs 115 described herein may be capable of communicating with various types of devices, such as other UEs 115, base stations 105, or network devices (e.g., core network nodes, relay devices, integrated access and backhaul (IAB) nodes, or other network devices), as Figure 1 shown.

[0054] The base stations 105 can communicate with the core network 130, or with each other, or both. For example, the base stations 105 can interface with the core network 130 via one or more backhaul links 120 (e.g., via S1, N2, N3, or other interfaces). The base stations 105 can communicate with each other directly (e.g., directly between the base stations 105) or indirectly (e.g., via the core network 130) or both via the backhaul links 120 (e.g., via X2, Xn, or other interfaces). In some examples, the backhaul links 120 can be or include one or more wireless links.

[0055] One or more of the base stations 105 described herein can include or can be referred to by those of ordinary skill in the art as base station transceivers, radio base stations, access points, radio transceivers, NodeB, eNodeB (eNB), next-generation NodeB, or gigabit NodeB (which can all be referred to as gNB), home NodeB, home eNodeB, or other suitable terms.

[0056] The UE 115 may include or may be referred to as a mobile device, wireless device, remote device, handheld device, or subscriber device, or some other suitable term, where "device" may also be referred to as a unit, station, terminal, or client, among other examples. The UE 115 may also include or may be referred to as a personal electronic device, such as a cellular phone, personal digital assistant (PDA), tablet computer, laptop computer, or personal computer. In some examples, the 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, among other examples, which may be implemented in various objects, such as appliances or vehicles, meters, and other examples.

[0057] The UE 115 described herein may be capable of communicating with various types of devices, such as other UE 115s that may sometimes act as relays, as well as the base station 105 and network devices including macro eNBs or gNBs, small cell eNBs or gNBs, or relay base stations, among other examples, as Figure 1 shown.

[0058] The UE 115 and the base station 105 may wirelessly communicate with each other over one or more communication links 125 on one or more carriers. The term "carrier" may refer to a set of radio spectrum resources having a defined physical layer structure for supporting the communication link 125. For example, a carrier for the communication link 125 may include a portion (e.g., bandwidth part (BWP)) of a radio spectrum band operating according to one or more physical layer channels of a given radio access technology (e.g., LTE, LTE-A, LTE-A Pro, NR). Each physical layer channel may carry acquisition signaling (e.g., synchronization signals, system information), control signaling for coordinating carrier operation, user data, or other signaling. The wireless communication system 100 may support communicating with the UE 115 using carrier aggregation or multi-carrier operation. The UE 115 may be configured with multiple downlink component carriers and one or more uplink component carriers according to a carrier aggregation configuration. Carrier aggregation may be used with frequency division duplex (FDD) and time division duplex (TDD) component carriers.

[0059] The signal waveform transmitted on a carrier can be composed of multiple subcarriers (e.g., using multi-carrier modulation (MCM) techniques such as orthogonal frequency division multiplexing (OFDM) or discrete Fourier transform spread OFDM (DFT-S-OFDM)). In a system adopting MCM techniques, a resource element can be composed of a symbol period (e.g., the duration of a modulated symbol) and a subcarrier, where the symbol period and the subcarrier spacing are inversely proportional. The number of bits carried by each resource element can depend on the modulation scheme (e.g., the order of the modulation scheme, the coding rate of the modulation scheme, or both). Therefore, the more resource elements 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 spectrum resources, time resources, and space resources (e.g., spatial layers or beams), and the use of multiple spatial layers can further increase the data rate or data integrity of communication with the UE 115.

[0060] The time interval of the base station 105 or the UE 115 can be expressed as a multiple of a basic time unit. For example, the time unit can refer to a sampling period T in seconds s = 1 / (Δf max ·N f ), where Δf max can represent the maximum supported subcarrier spacing, and N f can represent the maximum supported discrete Fourier transform (DFT) size. The time interval of communication resources can be organized according to radio frames, and each radio frame has 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).

[0061] Each frame can include a plurality of consecutively numbered subframes or time slots, and each subframe or time slot can have the same duration. In some examples, a frame can be divided into (e.g., in the time domain) subframes, and each subframe can be further divided into multiple time slots. Alternatively, each frame can include a variable number of time slots, and the number of time slots can depend on the subcarrier spacing. Each time slot can include a plurality of symbol periods (e.g., depending on the length of the cyclic prefix prefixed to each symbol period). In some wireless communication systems 100, a time slot can be further divided into multiple mini-slots containing one or more symbols. Excluding the cyclic prefix, each symbol period can contain one or more (e.g., N f ) sampling periods. The duration of the symbol period can depend on the subcarrier spacing or the operating frequency band.

[0062] A subframe, time slot, mini-slot, or symbol can be the smallest 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 TTI duration (e.g., the number of symbol periods in the TTI) can be variable. Additionally or alternatively, the smallest scheduling unit of the wireless communication system 100 can be dynamically selected (e.g., in a burst of shortened TTIs (sTTIs)).

[0063] Physical channels can be multiplexed on a carrier according to various techniques. A physical control channel and a physical data channel can be multiplexed on a downlink carrier, e.g., using one or more time-division multiplexing (TDM) techniques, frequency-division multiplexing (FDM) techniques, or hybrid TDM-FDM techniques. A control region of the physical control channel (e.g., a control resource set (CORESET)) can be defined by a plurality of symbol periods and can extend across the system bandwidth or a subset of the system bandwidth of the carrier. One or more control regions (e.g., CORESETs) can be configured for a group of UEs 115. For example, one or more of the UEs 115 can monitor or search for control information of a control region according to one or more search space sets, and each search space set can include one or more control channel candidates in one or more aggregation levels arranged in a cascaded manner. The aggregation level of a control channel candidate can refer to the number of control channel resources (e.g., control channel elements (CCEs)) associated with the coded information of a control information format having a given payload size. The search space set can include a common search space set configured to send control information to a plurality of UEs 115 and a UE-specific search space set for sending control information to a specific UE 115.

[0064] In some examples, the base station 105 can be movable and thus provide communication coverage for a mobile geographic coverage area 110. In some examples, different geographic coverage areas 110 associated with different technologies can overlap, but different geographic coverage areas 110 can be supported by the same base station 105. In other examples, overlapping geographic coverage areas 110 associated with different technologies can be supported by different base stations 105. The wireless communication system 100 can 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.

[0065] Some UEs 115 may be configured to operate in a power-reduced mode of operation, such as half-duplex communication (e.g., a mode that supports one-way communication via transmission or reception but not simultaneous transmission and reception). In some examples, half-duplex communication may be performed at a reduced peak rate. Other power-saving techniques for the UE 115 include entering a power-saving deep sleep mode when not participating in active communication, operating on limited bandwidth (e.g., according to narrowband communication), or a combination of these techniques. For example, some UEs 115 may be configured to operate using a narrowband protocol type associated with a defined portion or range within a carrier, within a guard band of the carrier, or outside the carrier (e.g., a set of subcarriers or resource blocks (RBs)).

[0066] The wireless communication system 100 may be configured to support ultra-reliable communication or low-latency communication or various combinations thereof. For example, the wireless communication system 100 may be configured to support ultra-reliable low-latency communication (URLLC) or mission-critical communication. The 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 communication or group communication and may be supported by one or more mission-critical services such as mission-critical push-to-talk (MCPTT), mission-critical video (MCVideo), or mission-critical data (MCData). Support for mission-critical functions may include service prioritization, and mission-critical services may be used for public safety or general commercial applications. The terms ultra-reliable, low-latency, mission-critical, and ultra-reliable low-latency may be used interchangeably herein.

[0067] In some examples, the UE 115 may also be capable of directly communicating with other UEs 115 via a device-to-device (D2D) communication link 135 (e.g., using a peer-to-peer (P2P) or D2D protocol). One or more UEs 115 utilizing D2D communication may be within the geographic coverage area 110 of the base station 105. Other UEs 115 in such a group may be outside the geographic coverage area 110 of the base station 105 or may otherwise be unable to receive transmissions from the base station 105. In some examples, a group of UEs 115 communicating via D2D communication may utilize a one-to-many (1:M) system where each UE 115 transmits to each other UE 115 in the group. In some examples, the base station 105 assists in scheduling resources for D2D communication. In other cases, D2D communication is performed between UEs 115 without involving the base station 105.

[0068] The core network 130 may provide user authentication, access authorization, tracking, Internet Protocol (IP) connectivity, and other access, routing, or mobility functions. The core network 130 may be an evolved packet core (EPC) or a 5G core (5GC), which may include at least one control plane entity that manages access and mobility (e.g., a mobility management entity (MME), an access and mobility management function (AMF)) and at least one user plane entity that routes or interconnects packets to an external network (e.g., a serving gateway (S-GW), a packet data network (PDN) gateway (P-GW), or a user plane function (UPF)). The control plane entity may manage non-access stratum (NAS) functions, such as mobility, authentication, and bearer management, for a UE 115 served by a base station 105 associated with the core network 130. User IP packets may be transported through the user plane entity, which may provide IP address allocation and other functions. The user plane entity may be connected to a network operator IP service 150. The operator IP service 150 may include access to the Internet, an intranet, an IP multimedia subsystem (IMS), or a packet-switched streaming service.

[0069] Some network devices, such as the base station 105, may include subcomponents, such as an access network entity 140, which may be an example of an access node controller (ANC). Each access network entity 140 may communicate with a UE 115 through one or more other access network transmitting entities 145, which may be referred to as radio heads, intelligent radio heads, or transmit / receive points (TRPs). Each access network transmitting entity 145 may include one or more antenna panels. In some configurations, the various functions of each access network entity 140 or the base station 105 may be distributed across various network devices (e.g., radio heads and ANCs) or consolidated into a single network device (e.g., the base station 105).

[0070] The wireless communication system 100 may operate using one or more frequency bands generally in the range of 300 megahertz (MHz) to 300 gigahertz (GHz). Generally, the region from 300 MHz to 3 GHz is known as the ultra-high frequency (UHF) region or the decimeter band because the wavelengths range from approximately one decimeter to one meter in length. UHF waves may be blocked or redirected by buildings and environmental features, but these waves may penetrate structures sufficiently to enable a macro cell to serve a UE 115 located indoors. Compared to transmissions at smaller frequencies and longer wavelengths using the high frequency (HF) or very high frequency (VHF) portions of the spectrum below 300 MHz, UHF wave transmissions may be associated with smaller antennas and shorter ranges (e.g., less than 100 kilometers).

[0071] The wireless communication system 100 can use both licensed and unlicensed radio spectrum bands. For example, the wireless communication system 100 can adopt licensed-assisted access (LAA), LTE-unlicensed (LTE-U) radio access technology, or NR technology in an unlicensed band such as the 5 GHz industrial, scientific, and medical (ISM) band. When operating in an unlicensed radio spectrum band, devices such as the base station 105 and the UE 115 can adopt carrier sensing for collision detection and avoidance. In some examples, the operation in the unlicensed band can be based on a carrier aggregation configuration together with component carriers operating in a licensed band (e.g., LAA). The operation in the unlicensed spectrum can include downlink transmission, uplink transmission, P2P transmission, or D2D transmission, among other examples.

[0072] The base station 105 or the UE 115 can be equipped with multiple antennas, which can be used to adopt techniques such as transmit diversity, receive diversity, multiple-input multiple-output (MIMO) communication, or beamforming. The antennas of the base station 105 or the UE 115 can be located within one or more antenna arrays or antenna panels, which can support MIMO operation or transmit or receive beamforming. For example, one or more base station antennas or antenna arrays can be co-located at an antenna assembly (such as an antenna tower). In some examples, the antennas or antenna arrays associated with the base station 105 can be located in different geographical locations. The base station 105 can include an antenna array having multiple rows and columns of antenna ports, and the base station 105 can use these antenna ports to support beamforming for communication with the UE 115. Similarly, the UE 115 can have one or more antenna arrays that can support various MIMO or beamforming operations. Additionally or alternatively, the antenna panel can support radio frequency beamforming for signals transmitted through the antenna ports.

[0073] Beamforming, also referred to as spatial filtering, directional transmission, or directional reception, is a signal processing technique that can be used at a transmitting device or a receiving device (e.g., the base station 105, the UE 115) to shape or control an antenna beam (e.g., a transmit beam, a receive beam) along a spatial path between the transmitting device and the receiving device. Beamforming can be achieved by combining signals conveyed through the antenna elements of an antenna array such that some signals propagating in a particular orientation relative to the antenna array experience constructive interference, while other signals experience destructive interference. The adjustment of the signals conveyed through the antenna elements can include applying an amplitude offset, a phase offset, or both to the signals carried by the antenna elements associated with the device at the transmitting device or the receiving device. The adjustment associated with each antenna element can be defined by a set of beamforming weights associated with a particular orientation (e.g., relative to the antenna array of the transmitting device or the receiving device, or relative to some other orientation).

[0074] The wireless communication system 100 can be a packet-based network operating according to a layered protocol stack. In the user plane, the communication at the bearer layer or the packet data convergence protocol (PDCP) layer can be IP-based. The radio link control (RLC) layer can perform packet segmentation and reassembly for communication over logical channels. The media access control (MAC) layer can perform priority handling and multiplex logical channels into 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 the RRC connection between the UE 115 and the base station 105 or the core network 130 that supports the radio bearers for user plane data. At the physical layer, the transport channels can be mapped to physical channels.

[0075] The UE 115 and the base station 105 can support retransmissions of data to increase the likelihood of successfully receiving the data. Hybrid automatic repeat request (HARQ) feedback is a technique for increasing the likelihood of correctly receiving data over the 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 the throughput at the MAC layer under poor radio conditions (e.g., low signal-to-noise ratio conditions). In some examples, the device can support simultaneous slot HARQ feedback, where the device can provide HARQ feedback for data received in the previous symbols in a particular slot during that slot. In other cases, the device can provide HARQ feedback in a subsequent slot or according to some other time interval.

[0076] The UE 115 can be configured with a DRX configuration. For example, the UE 115 can be configured with a DRX cycle that includes an active period and an inactive period. The UE 115 can communicate with the base station 105-a using full power during the active period. For example, the UE115-a may not have the ability to turn off or radio frequency (RF) functions when in the active period 210. In some cases, the active period can occur at the start of the DRX cycle. The duration of the DRX cycle (e.g., including the inactive period and the active period) can be configurable and span one or more time slots. For example, the DRX cycle can be 5 milliseconds, 10 milliseconds, 20 milliseconds, etc.

[0077] If the UE 115 receives downlink control signaling indicating a new uplink or downlink transmission for the UE 115, the UE 115 may activate the DRX inactivity timer. The UE 115 may remain active (e.g., not in a low power or sleep mode) while the DRX inactivity timer counts down. In some cases, the duration of the DRX inactivity timer may be based on the round-trip time (RTT) latency of the communication between the UE 115 and the base station 105 and multiple HARQ processes at the UE 115. While the DRX inactivity timer is active, the UE 115 may receive downlink shared channel transmissions or be scheduled for uplink shared channel transmissions. The UE 115 may then transmit or receive feedback for the uplink or downlink transmission.

[0078] In an example, the UE 115 may receive DCI on a physical downlink control channel (PDCCH) during an active period, and the DCI may schedule the UE 115 for a downlink shared channel message on a physical downlink shared channel (PDSCH) resource. The UE 115 may activate the DRX inactivity timer and monitor the PDSCH resource. If the UE 115 successfully receives the shared channel message, the UE 115 may transmit an acknowledgement (e.g., ACK) on an uplink control channel (e.g., physical uplink control channel (PUCCH)) and activate the downlink HARQ RTT timer. The downlink HARQ RTT timer may correspond to the minimum duration before a downlink assignment for which a HARQ retransmission is expected at the MAC entity of the UE 115. Once the downlink HARQ RTT timer expires, the UE 115 may enter an inactive period.

[0079] If the UE 115 is scheduled for a downlink shared channel message that is not successfully received, the UE 115 may transmit a negative acknowledgement (NACK) to the scheduling base station 105 and start the downlink HARQ RTT timer. Once the downlink HARQ RTT timer expires, the UE 115 may start the downlink DRX retransmission timer, which may correspond to the maximum duration until a downlink retransmission is received. While the downlink DRX retransmission timer counts down, the UE 115 may receive another DCI transmission scheduling a retransmission of the downlink shared channel message on the PDSCH resource. If the UE 115 successfully receives the retransmission, the UE 115 may start the downlink HARQ RTT timer and enter the inactive period once the downlink HARQ RTT timer expires.

[0080] UE 115 may be configured with SPS configurations. For example, UE 115 may be scheduled by base station 105-a for SPS communication. SPS communication may be supported to reduce scheduling overhead. In some examples, base station 105 may configure multiple SPS configurations for UE 115. Each SPS configuration may be associated with semi-periodic resources, and base station 105 may transmit downlink shared channel messages to UE 115 on the semi-periodic resources.

[0081] Each SPS configuration may have a set periodicity and an offset within the start of the DRX cycle. For example, in a DRX cycle with a 5 millisecond periodicity, a first SPS configuration may have a 2 millisecond periodicity, and the PDSCH resource may occur 0.5 ms after the start of the DRX cycle. A second SPS configuration may have a 2 millisecond periodicity, and the PDSCH resource for the second SPS configuration may occur 1.2 milliseconds after the start of the DRX cycle. A third SPS configuration may have a 10 millisecond periodicity, and the PDSCH resource is scheduled to occur 3.8 ms after the start of the DRX cycle. In other examples, the SPS configuration may have an offset different from the start of the DRX cycle, a different periodicity, etc., and UE 115 may have a different number of SPS configurations.

[0082] UE 115 may monitor SPS messages on the PDSCH when in a low power or partial sleep mode. UE 115 may also transmit feedback for SPS messages when in a partial sleep mode. In some cases, UE 115 does not successfully receive an SPS message, and UE 115 may send a NACK for the SPS message. After sending the NACK, UE 115 may exit the partial sleep mode and re-enter the active mode to monitor the PDCCH and receive scheduling information for the retransmission of the SPS message. In some cases, the DCI scheduling the retransmission may indicate new resource information (e.g., a new beam, modulation and coding scheme (MCS), etc.) for one or more of the SPS configurations.

[0083] Although turning off PDCCH monitoring in the low-power mode can reduce the power consumption at the UE 115, some conventional techniques can also cause some latency and communication errors. For example, the base station 105 may have new traffic for the UE 115, but the UE 115 may be in the low-power mode. Therefore, the UE 115 cannot receive the PDCCH carrying DCI to indicate the new traffic until the next DRX cycle and active period start. If the new traffic is of high priority or high urgency, such as URLLC, the latency may be catastrophic for the UE 115. In another example, the UE 115 may enter the low-power mode under non-optimal resource allocation, quasi-co-location (QCL) mapping, or assumptions, and the UE 115 may have better performance under different beams, MCS, PRBs, etc. However, the UE 115 may not be able to receive the downlink control channel signaling indicating the modification of these parameters (e.g., SPS reconfiguration for another SPS configuration) until the next active period starts.

[0084] The UE 115 and the base station 105 implementing the techniques described herein can support joint signaling of SPS configuration and DRX configuration to provide more efficient and reliable communication. For example, an SPS configuration in a set of SPS configurations can correspond to a DRX configuration or a set of DRX parameters (e.g., one-to-one mapping), which can provide an increased overlap between the active period of the DRX configuration and the SPS resources of the SPS configuration.

[0085] The techniques described can also support enhanced signaling of the DRX parameters of the DRX configuration. When the number of SPS configurations is relatively high, this enhanced signaling can reduce the signaling overhead in the wireless communication system 100. For example, the UE 115 can signal the updated DRX parameters each time the UE 115 is reconfigured with a different SPS configuration. Thus, the base station 105 can jointly configure the SPS configuration and the associated DRX configuration (or a set of associated DRX parameters) for the UE to save resources. For example, the base station 105 can transmit the SPS configuration to the UE 115. The base station can also indicate the associated DRX configuration or a set of associated DRX parameters to the UE 115, e.g., via layer 1 signaling (e.g., DCI signaled through PDCCH or MAC-CE). In some examples, the SPS configuration can include an indication of one or more DRX parameters of the DRX configuration. Additionally or alternatively, the SPS configuration can include one or more SPS parameters. The UE 115 can determine one or more DRX parameters of the DRX configuration based on the one or more SPS parameters (e.g., because of the link between the SPS parameters and the DRX parameters).

[0086] Figure 2FIG. 0 illustrates an example of a wireless communication system 200 that supports discontinuous reception signaling for a wireless communication system 200 in accordance with aspects of the present disclosure. In some examples, wireless communication system 200 may implement aspects of wireless communication system 100. Wireless communication system 200 may include UE 115-a and base station 105-a, which may be corresponding examples of UE 115 and base station 105 as referenced Figure 1 and described.

[0087] UE 115-a may be configured with a DRX configuration. For example, UE 115-a may be configured with one or more DRX cycles 205 in accordance with the DRX configuration. DRX cycle 205 may include an active period 210 and a sleep period 215. In some cases, sleep period 215 may be referred to as an inactive period or may include aspects of a partial sleep period. When in active period 210, UE 115-a may detect the PDCCH for downlink control channel signaling. When in sleep period 215, UE 115-a may stop monitoring the PDCCH to reduce power consumption at UE 115-a. In some cases, sleep period 215 may include a period for a sleep mode, a period for a partial sleep mode, or both. When in a partial sleep mode, UE 115-a may stop monitoring the PDCCH. During the sleep mode, UE 115-a may turn off traditional communication functions. For example, UE 115-a may turn off radio frequency capabilities such that UE 115-a does not transmit or detect incoming transmissions. For example, when UE 115-a has no other pending communication during DRX cycle 205, UE 115-a may deactivate some radio functions and transition to the sleep mode.

[0088] UE 115-a may also support one or more SPS configurations. For example, UE 115-a may have multiple possible SPS configurations, each of which may have different periodicities and different offsets from the start (i.e., the beginning) of DRX cycle 205. The base station 105-a may configure an SPS configuration, an SPS reconfiguration (e.g., reconfigure a new SPS configuration and an associated resource assignment for UE 115-a via DCI), or SPS activation for UE 115-a. For example, the base station 105-a may indicate an SPS configuration information element (e.g., SPS-Config) to UE 115-a. The SPS configuration information element may be used to configure downlink semi-persistent communication (e.g., downlink SPS may be configured for at most one cell in a cell group). Such an information element may include one or more SPS parameters of the SPS configuration. For example, one or more SPS parameters may include one or more allocated resources for SPS communication, an assignment start time, the periodicity of SPS communication (e.g., 10 ms, 20 ms, 32 ms, etc.), the number of HARQ processes (e.g., an integer from 1 to 8), resources associated with the PUCCH (e.g., PUCCH resource identifier), an MCS table (e.g., indicating QAM64 and other examples of MCS), and other examples of SPS parameters. In some examples, the base station 105-a may reconfigure the SPS configuration of UE 115-a by indicating that UE 115-a should perform a resource modification such as a beam change, a physical resource block (PRB) change, an MCS change, a QCL association change, or any combination thereof.

[0089] When operating in a partial sleep mode during the sleep period 215, the UE 115-a may receive SPS messages (e.g., on a downlink shared channel) and transmit feedback. If the UE 115-a sends feedback including a NACK for an SPS message, the UE 115-a may enter an active mode to monitor the PDCCH that may schedule a retransmission of the SPS message. In some examples, the SPS message may be successfully received during the initial active period, and the UE 115-a may stop monitoring the PDCCH outside of the initial active period 210. Although turning off downlink control channel monitoring in a low-power state may reduce power consumption at the UE 115-a, such techniques may also cause some latency and communication errors. For example, the base station 105-a may have new traffic for the UE 115-a, but the UE 115-a may be in a low-power mode (e.g., between active periods 210 or during the sleep period 215). Thus, the UE 115-a may not be able to receive permission for the new traffic until the next DRX cycle 205 begins. If the new traffic is of high priority or high urgency (e.g., URLLC traffic), this latency may be catastrophic for the UE 115-a. In another example, the UE 115-a may enter a low-power mode under a relatively inefficient resource allocation, and the UE 115-a may have better performance under a different resource allocation. However, the UE may not be able to receive DCI indicating a modification to the resource allocation (e.g., SPS reconfiguration) until the next active period 210 begins.

[0090] The SPS configuration of the UE 115-a may be linked to the DRX configuration of the UE 115-a to reduce the probability of latency occurring in ineffective communication. For example, each of the SPS configurations of the UE 115-a may include a corresponding DRX configuration or a set of corresponding DRX parameters. In other words, there may be a one-to-one mapping between each possible SPS configuration and each DRX configuration or each set of DRX parameters. This linkage may provide an increased overlap between the active period 210 of the DRX cycle 205 and the SPS messages of the corresponding SPS configuration. For example, the DRX parameters may set one or more active or inactive timers of the DRX cycle 205, the number of active periods 210 of the DRX cycle 205, one or more offsets of the active periods 210 of the DRX cycle 205, etc., such that any high-priority traffic or SPS reconfiguration message (e.g., transmitted according to the linked SPS configuration or a set of SPS parameters) may be received during the active period 210.

[0091] In some examples, the base station 105-a may configure one or more DRX parameters associated with an SPS configuration for the UE 115-a via layer 2 signaling (e.g., via RRC messaging). For example, the base station 105-a may signal one or more information elements (e.g., a set of DRX-Config information elements, where each element is defined according to the SPS configuration), or the base station 105-a may signal multiple sets of DRX parameters (e.g., when a single DRX configuration is associated with multiple SPS configurations). However, such signaling may result in relatively high signaling overhead.

[0092] Accordingly, the base station 105-a or the UE 115-a may employ the enhanced signaling techniques described herein to reduce signaling overhead. For example, the base station 105-a may jointly configure an SPS configuration and a corresponding DRX configuration or a set of corresponding DRX parameters for the UE 115-a to reduce signaling overhead. The base station 105-a may transmit the SPS configuration (e.g., in a set of SPS configurations) to the UE 115-a. The base station 105-a may also indicate the associated DRX configuration or a set of associated DRX parameters to the UE 115-a.

[0093] In some examples, the base station 105-a may explicitly indicate one or more DRX parameters corresponding to an SPS configuration via layer 1 signaling (e.g., DCI or MAC-CE). In some examples, the base station 105-a may indicate one or more DRX parameters independent of an SPS configuration, reconfiguration, or activation. For example, the base station 105-a may use DCI to signal one or more DRX parameters (e.g., DRX configuration identifier, DRX parameter group identifier, DRX timer, DRX offset, DRX start, and other examples), even if the DCI does not include an SPS configuration or reconfiguration. Such examples may enable the base station 105-a to configure or reconfigure DRX parameters independent of whether the DRX configuration is linked to (i.e., corresponds to) an SPS configuration at the device. Additionally or alternatively, the base station 105-a may explicitly indicate one or more DRX parameters to the UE 115-a jointly with an SPS configuration or reconfiguration (e.g., using DCI). For example, the base station 105-a may configure an SPS configuration (e.g., an SPS-Config information element) for the UE 115-a, and the SPS configuration may include an indication of a DRX configuration or one or more DRX parameters. The indication of the DRX parameters may be included in the SPS configuration information element. As an example, the indication may include a DRX configuration identifier (e.g., DRXConfig ID), a DRX parameter group identifier (e.g., DRX ParametersGroup ID), an association between the SPS configuration identifier and the DRX configuration identifier, and other examples.

[0094] In some other examples, the base station 105-a may implicitly indicate one or more DRX parameters corresponding to the SPS configuration. For example, the base station 105-a may signal to the UE 115-a the SPS configuration or reconfiguration, and the UE 115-a may identify one or more SPS parameters of the SPS configuration based on the signaling. The UE 115-a may determine one or more DRX parameters of the corresponding DRX configuration based on the SPS parameters (e.g., according to a pre-configured relationship or setting between the SPS parameters and the DRX parameters). As an illustrative example, the UE 115-a may identify the DRX offset, timer, configuration, etc. at least partially based on the SPS periodicity parameter and the SPS start parameter. Table 1 may show some possible example settings and associations between the SPS parameters and the DRX parameters.

[0095]

[0096] Table 1

[0097] In some examples, the UE 115-a may determine some DRX parameters of the DRX configuration according to defined settings, and determine some DRX parameters based on signaling from the base station 105-a (e.g., an explicit indication of the DRX parameters via layer 1 or layer 2 signaling).

[0098] Figure 3 FIG. 300 shows an example of a process flow supporting discontinuous reception signaling for a wireless communication system in accordance with aspects of the present disclosure. In some examples, the process flow 300 may implement aspects of the wireless communication system 100 and / or 200. The process flow 300 includes a UE 115-b and a base station 105-b, which may be corresponding examples of the UE 115 and the base station 105 described with reference to Figure 1 the UE 115 and the base station 105 described above.

[0099] At 305, the base station 105-b may determine an SPS configuration (e.g., one of a plurality of SPS configurations as described with reference to Figure 1 and Figure 2 . The SPS configuration may include one or more SPS parameters. The base station 105-b may configure the SPS configuration for the UE 115-b for subsequent SPS communication.

[0100] At 310, the base station 105-b may determine the DRX configuration of the UE 115-b. For example, the base station 105-b may identify one or more DRX parameters corresponding to the determined SPS configuration (e.g., of the DRX configuration). In other words, the base station 105-b may identify a set of DRX parameters linked to the SPS configuration.

[0101] At 315, base station 105-b may transmit configuration signaling to UE 115-b. For example, base station 105-b may configure the determined SPS configuration to UE 115-b, as referenced herein Figure 1 and Figure 2 described. Base station 105-b may jointly configure the determined DRX configuration to UE 115-b, as referenced herein Figure 1 and Figure 2 described. For example, base station 105-b may signal one or more DRX parameters via layer 1 signaling (e.g., DCI) independent of whether the DRX parameters are linked to (i.e., correspond to) the determined SPS configuration. Additionally or alternatively, base station 105-b may signal one or more DRX parameters corresponding to the determined SPS configuration, as described herein. For example, the configuration signaling may include explicitly signaling one or more DRX parameters (e.g., via DCI including the SPS configuration), implicitly signaling one or more DRX parameters (e.g., via a defined setting between the parameters of the SPS configuration and the DRX parameters), or a combination thereof.

[0102] At 320, UE 115-b may identify DRX parameters based on the configuration signaling. For example, UE 115-b may receive or determine one or more DRX parameters of the DRX configuration, as referenced herein Figure 2 described. At 325, UE 115-b may monitor communications according to the DRX configuration and the SPS configuration. For example, UE 115-b may monitor the downlink control channel (e.g., for SPS messages transmitted for resources scheduled via the SPS configuration) during the active period of the DRX configuration.

[0103] Figure 4 FIG. 400 is a block diagram illustrating a device 405 that supports discontinuous reception signaling for a wireless communication system in accordance with aspects of the present disclosure. Device 405 may be an example of aspects of UE 115 as described herein. Device 405 may include a receiver 410, a communication manager 415, and a transmitter 420. Device 405 may also include a processor. Each of these components may communicate with one another (e.g., via one or more buses).

[0104] The receiver 410 may receive information such as packets, user data, or control information associated with various information channels (e.g., control channels, data channels, and information related to discontinuous reception signaling for a wireless communication system, etc.). The information may be passed to other components of device 405. The receiver 410 may be an example of aspects of transceiver 720 as referenced Figure 7 described. The receiver 410 may utilize a single antenna or a set of antennas.

[0105] The communication manager 415 can receive a first SPS configuration from a base station, identify one or more DRX parameters of a first DRX configuration based on the first SPS configuration, where the first DRX configuration is associated with the first SPS configuration, and monitor a downlink control channel according to the first DRX configuration. The communication manager 415 can be an example of aspects of the communication manager 710 described herein.

[0106] The communication manager 415 or its subcomponents can be implemented in hardware, code executed by a processor (e.g., software or firmware), or any combination thereof. If implemented in code executed by a processor, the functions of the communication manager 415 or its subcomponents can be executed by a general-purpose processor, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field-programmable gate array (FPGA), or other programmable logic device, discrete gate or transistor logic, discrete hardware components, or any combination thereof designed to perform the functions described in this disclosure.

[0107] The communication manager 415 or its subcomponents can be physically located at various positions, including being distributed such that portions of the functions are implemented by one or more physical components at different physical locations. In some examples, the communication manager 415 or its subcomponents can be separate and distinct components according to various aspects of this disclosure. In some examples, the communication manager 415 or its subcomponents can be combined with one or more other hardware components, including but not limited to input / output (I / O) components, transceivers, network servers, another computing device, one or more other components described in this disclosure, or combinations thereof according to various aspects of this disclosure.

[0108] The actions performed by the communication manager 415 as described herein can be implemented to achieve one or more potential advantages. One implementation can enable a wireless device (such as UE 115 or base station 105) to jointly indicate one or more SPS configurations (e.g., a set of SPS parameters) and one or more corresponding DRX configurations (e.g., one or more linked DRX parameters). By linking the SPS configuration with an associated DRX configuration or a set of associated DRX parameters (e.g., DRX timer, offset, start, etc.), the likelihood of latency and inefficient communication can be reduced due to, for example, the active period of the DRX configuration being consistent with new traffic or an SPS configuration (or reconfiguration) transmitted to UE 115 and other example advantages.

[0109] Based on implementing signaling as described herein, a processor of UE 115 (e.g., a processor controlling receiver 410, communication manager 415, transmitter 420, or a combination thereof) and / or base station 105 may reduce signaling overhead associated with configuring a relatively high number of SPS configurations and corresponding DRX configurations for UE 115. For example, the signaling may include an indication of a DRX configuration that is linked to the SPS configuration and transmitted either together with or independently of the SPS configuration. Additionally or alternatively, the signaling may include signaling of SPS parameters of the SPS configuration, and a processor of UE 115 may operate to determine one or more corresponding DRX parameters based on the SPS parameters. Accordingly, UE 115 (e.g., a processor of UE 115) and / or base station 105 may achieve reduced signaling overhead.

[0110] Transmitter 420 may transmit signals generated by other components of device 405. In some examples, transmitter 420 may be collocated with receiver 410 in a transceiver module. For example, transmitter 420 may be an example of aspects of transceiver 720 described in Figure 7 reference. Transmitter 420 may utilize a single antenna or a set of antennas.

[0111] Figure 5 FIG. 500 is a block diagram of a device 505 supporting discontinuous reception signaling for a wireless communication system in accordance with aspects of the present disclosure. Device 505 may be an example of aspects of device 405 or UE 115 as described herein. Device 505 may include a receiver 510, a communication manager 515, and a transmitter 535. Device 505 may also include a processor. Each of these components may communicate with one another (e.g., via one or more buses).

[0112] Receiver 510 may receive information such as packets, user data, or control information associated with various information channels (e.g., control channels, data channels, and information related to DRX signaling for a wireless communication system, etc.). The information may be passed to other components of device 505. Receiver 510 may be an example of aspects of transceiver 720 described in Figure 7 reference. Receiver 510 may utilize a single antenna or a set of antennas.

[0113] Communication manager 515 may be an example of aspects of communication manager 415 as described herein. Communication manager 515 may include an SPS component 520, a DRX component 525, and a monitoring component 530. Communication manager 515 may be an example of aspects of communication manager 710 described herein.

[0114] SPS component 520 may receive a first SPS configuration from a base station.

[0115] The DRX component 525 may identify one or more DRX parameters of a first DRX configuration based on a first SPS configuration, where the first DRX configuration is associated with the first SPS configuration.

[0116] The monitoring component 530 may monitor a downlink control channel according to the first DRX configuration.

[0117] The transmitter 535 may transmit signals generated by other components of the device 505. In some examples, the transmitter 535 may be collocated with the receiver 510 in a transceiver module. For example, the transmitter 535 may be an example of an aspect of the transceiver 720 described in Figure 7 reference. The transmitter 535 may utilize a single antenna or a set of antennas.

[0118] Figure 6 FIG. 600 is a block diagram illustrating a communication manager 605 that supports discontinuous reception signaling for a wireless communication system in accordance with aspects of the present disclosure. The communication manager 605 may be an example of aspects of the communication manager 415, the communication manager 515, or the communication manager 710 described herein. The communication manager 605 may include an SPS component 610, a DRX component 615, a monitoring component 620, a DCI component 625, a MAC component 630, and a low power component 635. Each of these modules may communicate directly or indirectly with one another (e.g., via one or more buses).

[0119] The SPS component 610 may receive a first SPS configuration from a base station. In some examples, the SPS component 610 may identify one or more SPS parameters of the first SPS configuration. In some examples, the SPS component 610 may receive a second SPS configuration from the base station.

[0120] The DRX component 615 may identify one or more DRX parameters of a first DRX configuration based on a first SPS configuration, where the first DRX configuration is associated with the first SPS configuration. In some examples, the DRX component 615 may receive an indication of the first DRX configuration jointly with the reception of the first SPS configuration. In some examples, the DRX component 615 may determine a DRX configuration identifier, a DRX parameter set identifier, an association of an SPS identifier with the DRX configuration identifier, or a combination thereof based on an indication of the first DRX configuration. In some examples, the DRX component 615 may determine one or more DRX parameters of the first DRX configuration by the UE based on one or more SPS parameters.

[0121] In some examples, the DRX component 615 may identify one or more DRX parameters of a second DRX configuration based on a second SPS configuration, where the second DRX configuration is associated with the second SPS configuration. In some cases, one or more SPS parameters include the periodicity of the first SPS configuration, the start time of the first SPS configuration, or both. In some cases, one or more DRX parameters include one or more offsets of the first DRX configuration, the duration of one or more active periods of the first DRX configuration, or a combination thereof.

[0122] The monitoring component 620 may monitor the downlink control channel according to the first DRX configuration. In some examples, the monitoring component 620 may monitor the downlink control channel according to the second DRX configuration. In some examples, the monitoring component 620 may monitor the downlink control channel during one or more active periods of a cycle of the first DRX configuration. In some cases, the first DRX configuration includes one or more active periods of the UE that overlap with one or more resource assignments of the first SPS configuration.

[0123] The DCI component 625 may receive downlink control information from the base station indicating one or more DRX parameters. In some cases, the downlink control information includes the first SPS configuration.

[0124] The MAC component 630 may receive media access control (MAC) control element signaling from the base station indicating one or more DRX parameters.

[0125] The low power component 635 may enter a low power state after one or more active periods of a cycle.

[0126] Figure 7 FIG. shows a diagram of a system 700 including a device 705 that supports discontinuous reception signaling for a wireless communication system in accordance with aspects of the present disclosure. The device 705 may be an example of or include components of the device 405, the device 505, or the UE 115 described herein. The device 705 may include components for two-way voice and data communication, including components for transmitting and receiving communications, including a communication manager 710, an I / O controller 715, a transceiver 720, an antenna 725, a memory 730, and a processor 740. These components may communicate electronically via one or more buses (e.g., bus 745).

[0127] The communication manager 710 may receive a first SPS configuration from the base station, identify one or more DRX parameters of a first DRX configuration based on the first SPS configuration, where the first DRX configuration is associated with the first SPS configuration, and monitor the downlink control channel according to the first DRX configuration.

[0128] The I / O controller 715 can manage the input and output signals of the device 705. The I / O controller 715 can also manage peripheral devices not integrated into the device 705. In some cases, the I / O controller 715 can represent a physical connection or port to an external peripheral device. In some cases, the I / O controller 715 can utilize an operating system such as or another known operating system. In other cases, the I / O controller 715 can represent or interact with a modem, keyboard, mouse, touch screen, or similar device. In some cases, the I / O controller 715 can be implemented as part of a processor. In some cases, a user can interact with the device 705 through the I / O controller 715 or through hardware components controlled by the I / O controller 715.

[0129] The transceiver 720 can communicate bidirectionally through one or more antennas, wired or wireless links as described herein. For example, the transceiver 720 can represent a wireless transceiver and can communicate bidirectionally with another wireless transceiver. The transceiver 720 can also include a modem to modulate packets and provide the modulated packets to the antenna for transmission, and to demodulate packets received from the antenna.

[0130] In some cases, a wireless device can include a single antenna 725. However, in some cases, the device can have more than one antenna 725 that may be capable of simultaneously transmitting or receiving multiple wireless transmissions.

[0131] The memory 730 can include random access memory (RAM) and read-only memory (ROM). The memory 730 can store computer-readable, computer-executable code 735 including instructions that, when executed, cause the processor to perform the various functions described herein. In some cases, among other things, the memory 730 can contain a basic input / output system (BIOS) that can control basic hardware or software operations, such as interactions with peripheral components or devices.

[0132] The processor 740 can 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, the processor 740 can be configured to operate a memory array using a memory controller. In other cases, the memory controller can be integrated into the processor 740. The processor 740 can be configured to execute computer-readable instructions stored in a memory (e.g., memory 730) to cause the device 705 to perform various functions (e.g., functions or tasks supporting DRX signaling for a wireless communication system).

[0133] Code 735 may include instructions to implement aspects of the present disclosure, including instructions to support wireless communication. Code 735 may be stored in a non-transitory computer-readable medium (such as system memory or other types of memory). In some cases, code 735 may not be directly executable by the processor 740, but may cause a computer (e.g., when compiled and executed) to perform the functions described herein.

[0134] Figure 8 FIG. 800 is a block diagram illustrating a device 805 that supports discontinuous reception signaling for a wireless communication system in accordance with aspects of the present disclosure. The device 805 may be an example of aspects of the base station 105 as described herein. The device 805 may include a receiver 810, a communication manager 815, and a transmitter 820. The device 805 may also include a processor. Each of these components may communicate with one another (e.g., via one or more buses).

[0135] The receiver 810 may receive information such as packets, user data, or control information associated with various information channels (e.g., control channels, data channels, and information associated with DRX signaling for a wireless communication system, etc.). The information may be passed to other components of the device 805. The receiver 810 may be an example of aspects of the transceiver 1120 described herein. The receiver 810 may utilize a single antenna or a set of antennas. Figure 11 The receiver 810 may utilize a single antenna or a set of antennas.

[0136] The communication manager 815 may determine a first SPS configuration for a UE, determine a first DRX configuration associated with the first SPS configuration, and transmit the first SPS configuration to the UE, the first SPS configuration indicating one or more DRX parameters of the first DRX configuration. The communication manager 815 may be an example of aspects of the communication manager 1110 described herein.

[0137] The communication manager 815 or its sub-components may be implemented in hardware, code executed by a processor (e.g., software or firmware), or any combination thereof. If implemented in code executed by a processor, the functions of the communication manager 815 or its sub-components may be executed by a general-purpose processor, a DSP, an application specific integrated circuit (ASIC), an FPGA, or other programmable logic device, discrete gate or transistor logic, discrete hardware components, or any combination thereof designed to perform the functions described in the present disclosure.

[0138] The communication manager 815 or its sub-components may be physically located at 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, the communication manager 815 or its sub-components may be separate and distinct components in accordance with various aspects of the present disclosure. In some examples, the 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, another computing device, one or more other components described in the present disclosure, or combinations thereof, in accordance with various aspects of the present disclosure.

[0139] The transmitter 820 may transmit signals generated by other components of the device 805. In some examples, the transmitter 820 may be collocated with the receiver 810 in a transceiver module. For example, the transmitter 820 may be an example of aspects of the transceiver 1120 described in reference Figure 11 The transmitter 820 may utilize a single antenna or a set of antennas.

[0140] Figure 9 Block diagram 900 shows a device 905 supporting discontinuous reception signaling for a wireless communication system in accordance with various aspects of the present disclosure. The device 905 may be an example of aspects of the device 805 or the base station 105 described herein. The device 905 may include a receiver 910, a communication manager 915, and a transmitter 935. The device 905 may also include a processor. Each of these components may communicate with one another (e.g., via one or more buses).

[0141] The receiver 910 may receive information such as packets, user data, or control information associated with various information channels (e.g., control channels, data channels, and information related to DRX signaling for a wireless communication system, etc.). The information may be passed to other components of the device 905. The receiver 910 may be an example of aspects of the transceiver 1120 described in reference Figure 11 The receiver 910 may utilize a single antenna or a set of antennas.

[0142] The communication manager 915 may be an example of aspects of the communication manager 815 described herein. The communication manager 915 may include a scheduling component 920, a configuration component 925, and a transmitting component 930. The communication manager 915 may be an example of aspects of the communication manager 1110 described herein.

[0143] The scheduling component 920 may determine a first SPS configuration for the UE.

[0144] The configuration component 925 may determine a first DRX configuration associated with the first SPS configuration.

[0145] The transmitting component 930 may transmit a first SPS configuration to the UE, and the first SPS configuration indicates one or more DRX parameters of the first DRX configuration.

[0146] The transmitter 935 may transmit signals generated by other components of the device 905. In some examples, the transmitter 935 may be collocated with the receiver 910 in the transceiver module. For example, the transmitter 935 may be an example of aspects of the transceiver 1120 described in Figure 11 reference. The transmitter 935 may utilize a single antenna or a set of antennas.

[0147] Figure 10 Block diagram 1000 of a communication manager 1005 that supports discontinuous reception signaling for a wireless communication system according to aspects of the present disclosure is shown. The communication manager 1005 may be an example of aspects of the communication manager 815, the communication manager 915, or the communication manager 1110 described herein. The communication manager 1005 may include a scheduling component 1010, a configuration component 1015, a transmitting component 1020, an indicating component 1025, a parameter component 1030, a downlink component 1035, a control component 1040, and a messaging component 1045. Each of these modules may communicate directly or indirectly with each other (e.g., via one or more buses).

[0148] The scheduling component 1010 may determine a first SPS configuration for the UE. In some examples, the scheduling component 1010 may determine a second SPS configuration for the UE.

[0149] The configuration component 1015 may determine a first DRX configuration associated with the first SPS configuration. In some examples, the configuration component 1015 may determine a second DRX configuration associated with the second SPS configuration. In some cases, one or more DRX parameters include one or more offsets of the first DRX configuration, the duration of one or more active periods of the first DRX configuration, or a combination thereof.

[0150] The transmitting component 1020 may transmit a first SPS configuration to the UE, and the first SPS configuration indicates one or more DRX parameters of the first DRX configuration. In some examples, the transmitting component 1020 may transmit a second SPS configuration to the UE, and the second SPS configuration indicates one or more DRX parameters of the second DRX configuration.

[0151] The indicating component 1025 may transmit an indication of the first DRX configuration in conjunction with the transmission of the first SPS configuration.

[0152] Parameter component 1030 may identify one or more SPS parameters of a first SPS configuration. In some cases, the one or more SPS parameters include the periodicity of the first SPS configuration, the start time of the first SPS configuration, or both. In some cases, one or more DRX parameters correspond to the one or more SPS parameters.

[0153] Downlink component 1035 may transmit downlink control information indicating one or more DRX parameters to the UE. In some cases, the downlink control information includes the first SPS configuration.

[0154] Control component 1040 may transmit media access control (MAC) control element signaling indicating one or more DRX parameters to the UE.

[0155] Messaging component 1045 may transmit one or more messages to the UE via a resource block associated with the first SPS configuration, where the resource block overlaps with one or more active periods of the first DRX configuration.

[0156] Figure 11 FIG. 1100 illustrates a system 1100 including a device 1105 that supports discontinuous reception signaling for a wireless communication system, in accordance with aspects of the present disclosure. Device 1105 may be an example of or include components of device 805, device 905, or base station 105 as described herein. Device 1105 may include components for two-way voice and data communication, including components for transmitting and receiving communication, including communication manager 1110, network communication manager 1115, transceiver 1120, antenna 1125, memory 1130, processor 1140, and inter-station communication manager 1145. These components may communicate electronically via one or more buses (e.g., bus 1150).

[0157] Communication manager 1110 may determine a first SPS configuration for the UE, determine a first DRX configuration associated with the first SPS configuration, and transmit the first SPS configuration to the UE, the first SPS configuration indicating one or more DRX parameters of the first DRX configuration.

[0158] Network communication manager 1115 may manage communication with the core network (e.g., via one or more wired backhaul links). For example, network communication manager 1115 may manage the transmission of data communication for client devices such as one or more UEs 115.

[0159] The transceiver 1120 can communicate bidirectionally via one or more antennas, wired or wireless links as described herein. For example, the transceiver 1120 can represent a wireless transceiver and can communicate bidirectionally with another wireless transceiver. The transceiver 1120 can also include a modem to modulate packets and provide the modulated packets to the antenna for transmission, and to demodulate packets received from the antenna.

[0160] In some cases, the wireless device can include a single antenna 1125. However, in some cases, the device can have more than one antenna 1125 that may be capable of simultaneously transmitting or receiving multiple wireless transmissions.

[0161] The memory 1130 can include RAM, ROM, or a combination thereof. The memory 1130 can store computer-readable code 1135 including instructions that, when executed by a processor (e.g., processor 1140), cause the device to perform the various functions described herein. In some cases, among other things, the memory 1130 can contain a BIOS that can control basic hardware or software operations, such as interactions with peripheral components or devices.

[0162] The processor 1140 can 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, the processor 1140 can be configured to operate a memory array using a memory controller. In some cases, the memory controller can be integrated into the processor 1140. The processor 1140 can be configured to execute computer-readable instructions stored in a memory (e.g., memory 1130) to cause the device 1105 to perform various functions (e.g., functions or tasks supporting DRX signaling for a wireless communication system).

[0163] The inter-station communication manager 1145 can manage communication with other base stations 105 and can include a controller or scheduler for controlling the communication of the UE 115 that collaborates with other base stations 105. For example, the inter-station communication manager 1145 can coordinate the scheduling of transmissions to the UE 115 for various interference mitigation techniques such as beamforming or joint transmission. In some examples, the inter-station communication manager 1145 can provide an X2 interface within the LTE / LTE-A wireless communication network technology to provide communication between the base stations 105.

[0164] Code 1135 may include instructions to implement aspects of the present disclosure, including instructions to support 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 executable by the processor 1140 but may cause a computer (e.g., when compiled and executed) to perform the functions described herein.

[0165] Figure 12 A flowchart illustrating a method 1200 for supporting discontinuous reception signaling for a wireless communication system in accordance with aspects of the present disclosure is shown. Operations of method 1200 may be implemented by a UE 115 or its components as described herein. For example, operations of method 1200 may be performed by a communication manager as described with reference to Figures 4 to 7 described. In some examples, the UE may execute a set of instructions to control functional elements of the UE to perform the functions described herein. Additionally or alternatively, the UE may use special-purpose hardware to perform aspects of the functions described herein.

[0166] At 1205, the UE may receive a first SPS configuration from a base station. The operation of 1205 may be performed in accordance with the methods described herein. In some examples, aspects of the operation of 1205 may be performed by an SPS component as described with reference to Figures 4 to 7 described.

[0167] At 1210, the UE may identify one or more DRX parameters of a first DRX configuration based on the first SPS configuration, wherein the first DRX configuration is associated with the first SPS configuration. The operation of 1210 may be performed in accordance with the methods described herein. In some examples, aspects of the operation of 1210 may be performed by a DRX component as described with reference to Figures 4 to 7 described.

[0168] At 1215, the UE may monitor a downlink control channel according to the first DRX configuration. The operation of 1215 may be performed in accordance with the methods described herein. In some examples, aspects of the operation of 1215 may be performed by a monitoring component as described with reference to Figures 4 to 7 described.

[0169] Figure 13 A flowchart illustrating a method 1300 for supporting discontinuous reception signaling for a wireless communication system in accordance with aspects of the present disclosure is shown. Operations of method 1300 may be implemented by a UE 115 or its components as described herein. For example, operations of method 1300 may be performed by a communication manager as described with reference to Figures 4 to 7be performed by the described communication manager. In some examples, the UE may execute a set of instructions to control the functional elements of the UE to perform the functions described herein. Additionally or alternatively, the UE may use dedicated hardware to perform aspects of the functions described herein.

[0170] At 1305, the UE may receive a first SPS configuration from the base station. The operation of 1305 may be performed according to the methods described herein. In some examples, aspects of the operation of 1305 may be performed by an SPS component as referenced Figures 4 to 7 described.

[0171] At 1310, the UE may identify one or more DRX parameters of a first DRX configuration based on the first SPS configuration, where the first DRX configuration is associated with the first SPS configuration. The operation of 1310 may be performed according to the methods described herein. In some examples, aspects of the operation of 1310 may be performed by a DRX component as referenced Figures 4 to 7 described.

[0172] At 1315, the UE may receive an indication of the first DRX configuration jointly with the reception of the first SPS configuration. The operation of 1315 may be performed according to the methods described herein. In some examples, aspects of the operation of 1315 may be performed by a DRX component as referenced Figures 4 to 7 described.

[0173] At 1320, the UE may monitor a downlink control channel according to the first DRX configuration. The operation of 1320 may be performed according to the methods described herein. In some examples, aspects of the operation of 1320 may be performed by a monitoring component as referenced Figures 4 to 7 described.

[0174] Figure 14 FIG. shows a flowchart of a method 1400 that illustrates support for discontinuous reception signaling for a wireless communication system in accordance with aspects of the present disclosure. The operations of method 1400 may be implemented by a base station 105 or its components as described herein. For example, the operations of method 1400 may be performed by a communication manager as referenced Figures 8 to 11 described. 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 herein. Additionally or alternatively, the base station may use dedicated hardware to perform aspects of the functions described herein.

[0175] At 1405, the base station may determine a first SPS configuration for the UE. The operation of 1405 may be performed according to the methods described herein. In some examples, aspects of the operation of 1405 may be performed by a scheduling component as referenced Figures 8 to 11 described.

[0176] At 1410, the base station may determine a first DRX configuration associated with a first SPS configuration. The operation of 1410 may be performed according to the methods described herein. In some examples, aspects of the operation of 1410 may be performed by a configuration component as described with reference to Figures 8 to 11 the description.

[0177] At 1415, the base station may transmit a first SPS configuration to the UE, the first SPS configuration indicating one or more DRX parameters of the first DRX configuration. The operation of 1415 may be performed according to the methods described herein. In some examples, aspects of the operation of 1415 may be performed by a transmission component as described with reference to Figures 8 to 11 the description.

[0178] Figure 15 FIG. shows a flowchart of a method 1500 for supporting discontinuous reception signaling for a wireless communication system in accordance with aspects of the present disclosure. The operations of method 1500 may be implemented by a base station 105 or its components as described herein. For example, the operations of method 1500 may be performed by a communication manager as described with reference to Figures 8 to 11 the description. 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 herein. Additionally or alternatively, the base station may use dedicated hardware to perform aspects of the functions described herein.

[0179] At 1505, the base station may determine a first SPS configuration for the UE. The operation of 1505 may be performed according to the methods described herein. In some examples, aspects of the operation of 1505 may be performed by a scheduling component as described with reference to Figures 8 to 11 the description.

[0180] At 1510, the base station may determine a first DRX configuration associated with the first SPS configuration. The operation of 1510 may be performed according to the methods described herein. In some examples, aspects of the operation of 1510 may be performed by a configuration component as described with reference to Figures 8 to 11 the description.

[0181] At 1515, the base station may transmit a first SPS configuration to the UE, the first SPS configuration indicating one or more DRX parameters of the first DRX configuration. The operation of 1515 may be performed according to the methods described herein. In some examples, aspects of the operation of 1515 may be performed by a transmission component as described with reference to Figures 8 to 11 the description.

[0182] At 1520, the base station may transmit an indication of the first DRX configuration jointly with the transmission of the first SPS configuration. The operation of 1520 may be performed according to the methods described herein. In some examples, aspects of the operation of 1520 may be performed by a component as described with reference to Figures 8 to 11performed by the described indication component.

[0183] It should be noted that the methods described herein describe possible implementations, and the operations and steps can be rearranged or otherwise modified, and other implementations are possible. In addition, aspects from two or more methods can be combined.

[0184] The following provides an overview of aspects of the present disclosure:

[0185] Aspect 1: A method for wireless communication at a UE, comprising: receiving a first semi-persistent scheduling configuration from a base station; identifying one or more discontinuous reception parameters of a first discontinuous reception configuration at least partially based on the first semi-persistent scheduling configuration, wherein the first discontinuous reception configuration is associated with the first semi-persistent scheduling configuration; and monitoring a downlink control channel according to the first discontinuous reception configuration.

[0186] Aspect 2: The method according to Aspect 1, wherein identifying the one or more discontinuous reception parameters comprises: receiving an indication of the first discontinuous reception configuration jointly with the reception of the first semi-persistent scheduling configuration.

[0187] Aspect 3: The method according to Aspect 2, wherein identifying the one or more discontinuous reception parameters further comprises: determining at least partially based on the indication of the first discontinuous reception configuration an association between a discontinuous reception configuration identifier, a discontinuous reception parameter set identifier, a semi-persistent scheduling identifier and the discontinuous reception configuration identifier, or a combination thereof.

[0188] Aspect 4: The method according to any one of Aspects 1 to 3, wherein identifying the one or more discontinuous reception parameters comprises: identifying one or more semi-persistent scheduling parameters of the first semi-persistent scheduling configuration; and determining by the UE the one or more discontinuous reception parameters of the first discontinuous reception configuration at least partially based on the one or more semi-persistent scheduling parameters.

[0189] Aspect 5: The method according to Aspect 4, wherein the one or more semi-persistent scheduling parameters comprise the periodicity of the first semi-persistent scheduling configuration, the start time of the first semi-persistent scheduling configuration, or both.

[0190] Aspect 6: The method according to any one of Aspects 1 to 5, wherein the one or more discontinuous reception parameters comprise one or more offsets of the first discontinuous reception configuration, the duration of one or more active periods of the first discontinuous reception configuration, or a combination thereof.

[0191] Aspect 7: The method according to any one of Aspects 1 to 6 further includes: receiving a second semi-persistent scheduling configuration from the base station; identifying one or more discontinuous reception parameters of a second discontinuous reception configuration at least partially based on the second semi-persistent scheduling configuration, wherein the second discontinuous reception configuration is associated with the second semi-persistent scheduling configuration; and monitoring the downlink control channel according to the second discontinuous reception configuration.

[0192] Aspect 8: The method according to any one of Aspects 1 to 7, wherein identifying the one or more discontinuous reception parameters includes: receiving downlink control information from the base station indicating the one or more discontinuous reception parameters.

[0193] Aspect 9: The method according to Aspect 8, wherein the downlink control information includes the first semi-persistent scheduling configuration.

[0194] Aspect 10: The method according to any one of Aspects 1 to 9, wherein identifying the one or more discontinuous reception parameters includes: receiving media access control (MAC) control element signaling from the base station indicating the one or more discontinuous reception parameters.

[0195] Aspect 11: The method according to any one of Aspects 1 to 10, wherein the first discontinuous reception configuration includes one or more active periods of the UE that overlap with one or more resource assignments of the first semi-persistent scheduling configuration.

[0196] Aspect 12: The method according to any one of Aspects 1 to 11, wherein monitoring the downlink control channel according to the first discontinuous reception configuration further includes: monitoring the downlink control channel during one or more active periods of a cycle of the first discontinuous reception configuration; and entering a low power state after the one or more active periods of the cycle.

[0197] Aspect 13: A method for wireless communication at a base station, including: determining a first semi-persistent scheduling configuration for a UE; determining a first discontinuous reception configuration associated with the first semi-persistent scheduling configuration; and transmitting the first semi-persistent scheduling configuration to the UE, the first semi-persistent scheduling configuration indicating one or more discontinuous reception parameters of the first discontinuous reception configuration.

[0198] Aspect 14: The method according to Aspect 13, wherein transmitting the first semi-persistent scheduling configuration to the UE includes: jointly transmitting an indication of the first discontinuous reception configuration with the transmission of the first semi-persistent scheduling configuration.

[0199] Aspect 15: The method according to any one of Aspects 13 to 14, wherein the one or more discontinuous reception parameters include one or more offsets of the first discontinuous reception configuration, the duration of one or more active periods of the first discontinuous reception configuration, or a combination thereof.

[0200] Aspect 16: The method according to any one of Aspects 13 to 15, further comprising: identifying one or more semi-persistent scheduling parameters of the first semi-persistent scheduling configuration.

[0201] Aspect 17: The method according to Aspect 16, wherein the one or more semi-persistent scheduling parameters include the periodicity of the first semi-persistent scheduling configuration, the start time of the first semi-persistent scheduling configuration, or both.

[0202] Aspect 18: The method according to any one of Aspects 16 to 17, wherein the one or more discontinuous reception parameters correspond to the one or more semi-persistent scheduling parameters.

[0203] Aspect 19: The method according to any one of Aspects 13 to 18, further comprising: determining a second semi-persistent scheduling configuration for the UE; determining a second discontinuous reception configuration associated with the second semi-persistent scheduling configuration; and transmitting the second semi-persistent scheduling configuration to the UE, the second semi-persistent scheduling configuration indicating one or more discontinuous reception parameters of the second discontinuous reception configuration.

[0204] Aspect 20: The method according to any one of Aspects 13 to 19, further comprising: transmitting downlink control information indicating the one or more discontinuous reception parameters to the UE.

[0205] Aspect 21: The method according to Aspect 20, wherein the downlink control information includes the first semi-persistent scheduling configuration.

[0206] Aspect 22: The method according to any one of Aspects 13 to 21, further comprising: transmitting media access control (MAC) control element signaling indicating the one or more discontinuous reception parameters to the UE.

[0207] Aspect 23: The method according to any one of Aspects 13 to 22, further comprising: transmitting one or more messages to the UE via a resource block associated with the first semi-persistent scheduling configuration, wherein the resource block overlaps with one or more active periods of the first discontinuous reception configuration.

[0208] Aspect 24: An apparatus for wireless communication at a UE, comprising: a processor; a memory coupled to the processor; and instructions stored in the memory and executable by the processor to cause the apparatus to perform the method according to any one of Aspects 1 to 12.

[0209] Aspect 25: An apparatus for wireless communication at a UE, comprising at least one component for performing the method according to any one of Aspects 1 to 12.

[0210] Aspect 26: A non-transitory computer-readable medium storing code for wireless communication at a UE, the code comprising instructions executable by a processor to perform the method according to any one of Aspects 1 to 12.

[0211] Aspect 27: 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 method according to any one of Aspects 13 to 23.

[0212] Aspect 28: An apparatus for wireless communication at a base station, comprising at least one apparatus for performing the method according to any one of Aspects 13 to 23.

[0213] Aspect 29: A non-transitory computer-readable medium storing code for wireless communication at a base station, the code comprising instructions executable by a processor to perform the method according to any one of Aspects 13 to 23.

[0214] Although aspects of LTE, LTE-A, LTE-A Pro, or NR systems may be described for example purposes, and the LTE, LTE-A, LTE-A Pro, or NR terminology may be used in many descriptions, the techniques described herein also apply outside of LTE, LTE-A, LTE-A Pro, or NR networks. For example, the described techniques may apply to various other wireless communication systems such as Ultra Mobile Broadband (UMB), Institute of Electrical and Electronics Engineers (IEEE) 802.11 (Wi-Fi), IEEE 802.16 (WiMAX), IEEE 802.20, Flash-OFDM, and other systems and radio technologies not explicitly mentioned herein.

[0215] The information and signals described herein can be represented using any of a variety of different technologies. For example, data, instructions, commands, information, signals, bits, symbols, and chips that may be referred to throughout the description may be represented by voltage, current, electromagnetic waves, magnetic fields or particles, optical fields or particles, or any combination thereof.

[0216] The various illustrative blocks and components described in connection with the present disclosure may be implemented or performed with a general purpose processor, a DSP, an ASIC, a CPU, an FPGA or other programmable logic device, discrete gate or transistor logic, discrete hardware components, or any combination thereof designed to perform the functions described herein. A general purpose processor may be a microprocessor, but in the alternative, the processor may be any processor, controller, microcontroller, or state machine. The processor may also be implemented as a combination of computing devices, e.g., a combination of a DSP and a microprocessor, multiple microprocessors, one or more microprocessors in conjunction with a DSP core, or any other such configuration.

[0217] The functions described herein may be implemented in hardware, software executed by a processor, firmware, or any combination thereof. If implemented in software executed by a processor, the functions may be stored on or transmitted via a computer-readable medium as one or more instructions or code. Other examples and implementations are within the scope of the present disclosure and the appended claims. For example, due to the nature of software, the functions described herein may be implemented using software executed by a processor, hardware, firmware, hardwiring, or any combination thereof. The features implementing the functions may also be physically located at different positions, including being distributed such that portions of the functions are implemented at different physical locations.

[0218] Computer-readable media includes both non-transitory computer storage media and communication media including any medium that facilitates transfer of a computer program from one place to another. A non-transitory storage medium may be any available medium that can be accessed by a general or special purpose computer. By way of example and not limitation, non-transitory computer-readable media may include RAM, ROM, electrically erasable programmable ROM (EEPROM), flash memory, compact 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 the desired program code in the form of instructions or data structures and that can be accessed by a general or special purpose computer or a general or special purpose processor. Additionally, any connection is properly termed a computer-readable medium. For example, if software is transmitted from a website, server, or other remote source using a coaxial cable, fiber optic cable, twisted pair, digital subscriber line (DSL), or wireless technologies such as infrared, radio, and microwave, then the coaxial cable, fiber optic cable, twisted pair, DSL, or wireless technologies such as infrared, radio, and microwave are included in the definition of computer-readable medium. As used herein, disk and disc include CD, laser disc, optical disc, digital versatile disc (DVD), floppy disk, and Blu-ray disc where disks usually reproduce data magnetically and discs reproduce data optically with lasers. Combinations of the above are also included within the scope of computer-readable media.

[0219] As used herein, including in the claims, the "or" used in a list of items (a list of items led by a phrase such as "at least one" or "one or more") indicates an inclusive list, such that, for example, a list of at least one of A, B, or C means A or B or C or AB or AC or BC or ABC (i.e., A, B, and C). Additionally, as used herein, the phrase "based on" should not be construed as a reference to a closed set of conditions. For example, an exemplary step described as "based on condition A" can be based on both condition A and condition B without departing from the scope of the present disclosure. In other words, as used herein, the phrase "based on" should be interpreted in the same manner as the phrase "at least partially based on".

[0220] In the figures, similar components or features may have the same reference label. Additionally, various components of the same type can be distinguished by following the reference label with a dash and a second label that differentiates the similar components. If only the first reference label is used in the specification, the description applies to any one of the similar components having the same first reference label, regardless of the second reference label or any other subsequent reference labels.

[0221] The description set forth herein describes exemplary configurations in conjunction with the figures and does not represent all examples that can be implemented or that are 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". To provide an understanding of the described technology, the detailed description includes specific details. However, the technology can be practiced without these specific details. In some instances, well-known structures and devices are shown in block diagram form in order to avoid unnecessarily obscuring the concepts of the described examples.

[0222] The present description is provided to enable a person of ordinary skill in the art to make or use the present disclosure. Various modifications to the present disclosure will be apparent to a person of ordinary skill in the art, and the general principles defined herein can be applied to other variations without departing from the scope of the present disclosure. Thus, the present disclosure is not limited to the examples and designs described herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A method for wireless communication at a user equipment (UE), comprising: Receiving an indication of a mapping between a plurality of semi - persistent scheduling configurations and a plurality of corresponding discontinuous reception configurations from a network device; Receiving an indication of a first semi - persistent scheduling configuration from the network device, wherein the plurality of semi - persistent scheduling configurations includes the first semi - persistent scheduling configuration; Identifying one or more discontinuous reception parameters of a first discontinuous reception configuration at least partially based on the indication of the first semi - persistent scheduling configuration and at least partially based on the mapping, wherein the first discontinuous reception configuration is associated with the first semi - persistent scheduling configuration; And Monitoring a downlink control channel according to the first discontinuous reception configuration.

2. The method according to claim 1, wherein identifying the one or more discontinuous reception parameters comprises: Receiving an indication of the first discontinuous reception configuration jointly with the reception of the first semi - persistent scheduling configuration.

3. The method according to claim 2, wherein identifying the one or more discontinuous reception parameters further comprises: Determining at least partially based on the indication of the first discontinuous reception configuration an association of a discontinuous reception configuration identifier, a discontinuous reception parameter set identifier, a semi - persistent scheduling identifier with the discontinuous reception configuration identifier, or a combination thereof.

4. The method according to claim 1, wherein identifying the one or more discontinuous reception parameters comprises: Identifying one or more semi - persistent scheduling parameters of the first semi - persistent scheduling configuration; And Determining by the UE the one or more discontinuous reception parameters of the first discontinuous reception configuration at least partially based on the one or more semi - persistent scheduling parameters.

5. The method according to claim 4, wherein the one or more semi - persistent scheduling parameters include the periodicity of the first semi - persistent scheduling configuration, the start time of the first semi - persistent scheduling configuration, or both.

6. The method according to claim 1, wherein the one or more discontinuous reception parameters include one or more offsets of the first discontinuous reception configuration, the duration of one or more active periods of the first discontinuous reception configuration, or a combination thereof.

7. The method according to claim 1, further comprising: Receiving an indication of a second semi - persistent scheduling configuration from the network device, wherein the plurality of semi - persistent scheduling configurations includes the second semi - persistent scheduling configuration; Identifying one or more discontinuous reception parameters of a second discontinuous reception configuration at least partially based on the indication of the second semi - persistent scheduling configuration and at least partially based on the mapping, wherein the second discontinuous reception configuration is associated with the second semi - persistent scheduling configuration; And Monitoring the downlink control channel according to the second discontinuous reception configuration.

8. The method according to claim 1, wherein Receiving the indication of the first semi - persistent scheduling configuration comprises: Receiving downlink control information from the network device indicating the first semi - persistent scheduling configuration.

9. The method according to claim 1, wherein Receiving the indication of the first semi - persistent scheduling configuration comprises: Receive media access control (MAC) control element signaling from the network device indicating the first semi-persistent scheduling configuration.

10. The method according to claim 1, wherein the first discontinuous reception configuration includes one or more active periods of the UE that overlap with one or more resource assignments of the first semi-persistent scheduling configuration.

11. The method according to claim 1, wherein further monitoring the downlink control channel according to the first discontinuous reception configuration includes: Monitoring the downlink control channel during one or more active periods of a cycle of the first discontinuous reception configuration; And Entering a low power state after one or more active periods of the cycle.

12. A method for wireless communication at a network device, comprising: Determining a first semi-persistent scheduling configuration for a user equipment (UE); Determining a first discontinuous reception configuration associated with the first semi-persistent scheduling configuration; Transmitting an indication of a mapping between a plurality of semi-persistent scheduling configurations and a plurality of corresponding discontinuous reception configurations to the UE, wherein the plurality of semi-persistent scheduling configurations includes the first semi-persistent scheduling configuration; And Transmitting an indication of the first semi-persistent scheduling configuration to the UE, the first semi-persistent scheduling configuration indicating one or more discontinuous reception parameters of the first discontinuous reception configuration based at least in part on the mapping and at least in part on the indication of the first semi-persistent scheduling configuration.

13. The method according to claim 12, wherein transmitting the first semi-persistent scheduling configuration to the UE includes: Transmitting an indication of the first discontinuous reception configuration jointly with the transmission of the first semi-persistent scheduling configuration.

14. The method according to claim 12, wherein the one or more discontinuous reception parameters include one or more offsets of the first discontinuous reception configuration, a duration of one or more active periods of the first discontinuous reception configuration, or a combination thereof.

15. The method according to claim 12, further comprising: Identifying one or more semi-persistent scheduling parameters of the first semi-persistent scheduling configuration.

16. The method according to claim 15, wherein the one or more semi-persistent scheduling parameters include the periodicity of the first semi-persistent scheduling configuration, the start time of the first semi-persistent scheduling configuration, or both.

17. The method according to claim 15, wherein the one or more discontinuous reception parameters correspond to the one or more semi-persistent scheduling parameters.

18. The method according to claim 12, further comprising: Determining a second semi-persistent scheduling configuration for the UE, wherein the plurality of semi-persistent scheduling configurations includes the second semi-persistent scheduling configuration; Determining a second discontinuous reception configuration associated with the second semi-persistent scheduling configuration; And Transmitting the second semi-persistent scheduling configuration to the UE, the second semi-persistent scheduling configuration indicating one or more discontinuous reception parameters of the second discontinuous reception configuration based at least in part on the mapping and at least in part on the indication of the second semi-persistent scheduling configuration.

19. The method according to claim 12, wherein transmitting the indication of the first semi-persistent scheduling configuration comprises: Transmitting downlink control information to the UE indicating the first semi-persistent scheduling configuration.

20. The method according to claim 12, wherein transmitting the indication of the first semi-persistent scheduling configuration comprises: Transmitting media access control (MAC) control element signaling to the UE indicating the first semi-persistent scheduling configuration.

21. The method according to claim 12, further comprising: Transmitting one or more messages to the UE via a resource block associated with the first semi-persistent scheduling configuration, wherein the resource block overlaps with one or more active periods of the first discontinuous reception configuration.

22. An apparatus for wireless communication at a user equipment (UE), comprising: One or more processors, A memory coupled to the one or more processors; And Instructions stored in the memory and executable by the one or more processors to cause the apparatus to: Receive an indication of a mapping between a plurality of semi-persistent scheduling configurations and a plurality of corresponding discontinuous reception configurations from a network device; Receive an indication of a first semi-persistent scheduling configuration from the network device, wherein the plurality of semi-persistent scheduling configurations includes the first semi-persistent scheduling configuration; Identify one or more discontinuous reception parameters of a first discontinuous reception configuration at least in part based on the indication of the first semi-persistent scheduling configuration and at least in part based on the mapping, wherein the first discontinuous reception configuration is associated with the first semi-persistent scheduling configuration; And Monitor a downlink control channel according to the first discontinuous reception configuration.

23. The apparatus according to claim 22, wherein the instructions for identifying the one or more discontinuous reception parameters are executable by the one or more processors to cause the apparatus to: Receive an indication of the first discontinuous reception configuration jointly with the reception of the first semi-persistent scheduling configuration.

24. The apparatus according to claim 23, wherein the instructions for identifying the one or more discontinuous reception parameters are further executable by the one or more processors to cause the apparatus to: Determine at least in part based on the indication of the first discontinuous reception configuration an association between a discontinuous reception configuration identifier, a discontinuous reception parameter set identifier, a semi-persistent scheduling identifier and the discontinuous reception configuration identifier, or a combination thereof.

25. The apparatus according to claim 22, wherein the first discontinuous reception configuration includes one or more active periods of the UE that overlap with one or more resource assignments of the first semi-persistent scheduling configuration.

26. An apparatus for wireless communication at a network device, comprising: One or more processors, A memory coupled to the one or more processors; And Instructions stored in the memory and executable by the one or more processors to cause the apparatus to: Determine a first semi-persistent scheduling configuration for a user equipment (UE); Determine a first discontinuous reception configuration associated with the first semi-persistent scheduling configuration; Transmit an indication of a mapping between a plurality of semi-persistent scheduling configurations and a plurality of corresponding discontinuous reception configurations to the UE, wherein the plurality of semi-persistent scheduling configurations includes the first semi-persistent scheduling configuration; And Transmit an indication of the first semi-persistent scheduling configuration to the UE, the first semi-persistent scheduling configuration indicating one or more discontinuous reception parameters of the first discontinuous reception configuration based at least in part on the mapping and at least in part on the indication of the first semi-persistent scheduling configuration.

27. The apparatus according to claim 26, wherein the instructions for transmitting the first semi-persistent scheduling configuration to the UE are executable by the one or more processors to cause the apparatus to: Transmit an indication of the first discontinuous reception configuration jointly with the transmission of the first semi-persistent scheduling configuration.

28. The apparatus according to claim 26, wherein the one or more discontinuous reception parameters include one or more offsets of the first discontinuous reception configuration, a duration of one or more active periods of the first discontinuous reception configuration, or a combination thereof.

29. The apparatus according to claim 26, wherein the instructions are further executable by the one or more processors to cause the apparatus to: Identify one or more semi-persistent scheduling parameters of the first semi-persistent scheduling configuration.

30. The apparatus according to claim 26, wherein the indication is further executable by the one or more processors to cause the apparatus to: Transmit one or more messages to the UE via a resource block associated with the first semi-persistent scheduling configuration, wherein the resource block overlaps with one or more active periods of the first discontinuous reception configuration.

31. A computer-readable medium having program code recorded thereon, wherein the program code is executable by one or more processors of a user equipment UE to cause the processors to perform the method according to any one of claims 1-11.

32. A computer-readable medium having program code recorded thereon, wherein the program code is executable by one or more processors of a network device to cause the processors to perform the method according to any one of claims 12-21.

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