Enhanced wake-up signal-based power saving for wireless devices

Abstract

The present invention discloses a technology for power saving, including: establishing a radio resource control (RRC) connection with a wireless system; entering an RRC connected mode based on the established RRC connection; receiving configuration information from the wireless system, the configuration information indicating a discontinuous reception (DRX) cycle time, a DRX on period, and an offset time; determining an enhanced wake-up signal (EWUS) monitoring opportunity for the DRX cycle based on the offset time and the DRX on period; during a first DRX cycle, monitoring an EWUS during an EWUS monitoring opportunity associated with the first DRX cycle; receiving the EWUS from the wireless system during the EWUS monitoring opportunity; determining that the EWUS indicates that the wireless device skips one or more subsequent EWUS monitoring opportunities; and skipping monitoring for the EWUS based on the indicated skipped one or more subsequent EWUS monitoring opportunities.

Description

Technical Field

[0001] The present application relates to wireless devices and wireless networks, and more particularly to apparatuses, systems, and methods for generating and processing enhanced wake-up signals (WUS). Background Art

[0002] The use of wireless communication systems is growing rapidly. In recent years, wireless devices such as smartphones and tablets have become increasingly sophisticated. In addition to supporting phone calls, many mobile devices now also provide access to the Internet, email, text messaging and navigation using the Global Positioning System (GPS), and are capable of operating sophisticated applications that utilize these capabilities. In addition, there are many different wireless communication technologies and wireless communication standards. Some examples of wireless communication standards include GSM, UMTS (e.g., associated with WCDMA or TD-SCDMA air interfaces), LTE, Advanced LTE (LTE-A), HSPA, 3GPP2 CDMA2000 (e.g., 1xRTT, 1xEV-DO, HRPD, eHRPD), IEEE 802.11 (WLAN or Wi-Fi), BLUETOOTH, and LTE-A. TM wait.

[0003] The introduction of an ever-increasing number of features and functions in wireless communication devices also requires continuous improvement in wireless communication and improvements in wireless communication devices. In order to increase coverage and better serve the increasing demand and range of intended uses of wireless communication, in addition to the above-mentioned communication standards, there are also wireless communication technologies being developed, including fifth-generation (5G) new radio (NR) communication. Therefore, there is a need for improvements in the field that support such development and design. Summary of the Invention

[0004] Aspects of the present disclosure relate to apparatus, systems, and methods for power conservation, including: establishing a radio resource control (RRC) connection with a wireless device; transmitting configuration information to the wireless device, the configuration information indicating a discontinuous reception (DRX) cycle time, a DRX on period, and an offset time; transmitting an enhanced wake-up signal (EWUS) monitoring opportunity for the DRX cycle, the EWUS monitoring opportunity being based on the offset time and the DRX on period; determining that the wireless device can skip monitoring one or more subsequent EWUS monitoring opportunities; during a first DRX cycle, transmitting an EWUS for the wireless device during an EWUS monitoring opportunity associated with the first DRX cycle, the EWUS indicating that the wireless device can skip one or more subsequent EWUS monitoring opportunities; and skipping transmitting the EWUS to the wireless device during the one or more subsequent EWUS monitoring opportunities.

[0005] Another aspect of the present disclosure relates to an apparatus, system, and method for power saving, including: establishing a radio resource control (RRC) connection with a wireless system; entering an RRC connected mode based on the established RRC connection; receiving configuration information from the wireless system, the configuration information indicating a discontinuous reception (DRX) cycle time, a DRX on period, and an offset time; determining a wake-up signal (WUS) monitoring opportunity for the DRX cycle based on the offset time and the DRX on period; during a first DRX cycle, monitoring the WUS during a WUS monitoring opportunity associated with the first DRX cycle; receiving the WUS from the wireless system during the WUS monitoring opportunity; determining that the WUS indicates that the wireless device skips one or more subsequent WUS monitoring opportunities; and skipping monitoring for the WUS based on the indicated skipped one or more subsequent WUS monitoring opportunities.

[0006] The techniques described herein may be implemented in and / or used with a number of different types of devices, including, but not limited to, any of cellular telephones, wireless devices, tablet computers, wearable computing devices, portable media players, and various other computing devices.

[0007] This summary is intended to provide a brief overview of some of the subject matter described in this document. Therefore, it should be understood that the above-described features are merely examples and should not be construed as narrowing the scope or spirit of the subject matter described herein in any way. Other features, aspects, and advantages of the subject matter described herein will become apparent from the following detailed description, accompanying drawings, and claims. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] A better understanding of the present subject matter may be obtained when the following detailed description of the various aspects is considered in conjunction with the following drawings, in which:

[0009] Figure 1 An exemplary wireless communication system according to some aspects is shown;

[0010] Figure 2 A base station (BS) in communication with a user equipment (UE) device is shown according to some aspects;

[0011] Figure 3 An exemplary block diagram of a UE according to some aspects is shown;

[0012] Figure 4 An exemplary block diagram of a BS according to some aspects is shown;

[0013] Figure 5 An exemplary block diagram of a cellular communication circuit according to some aspects is shown;

[0014] Figure 6 illustrates an exemplary block diagram of a network element according to some aspects;

[0015] Figure 7 is a timing diagram illustrating reception of a physical downlink control channel (PDCCH) based on a WUS according to aspects of the present disclosure.

[0016] Figure 8 is a timing diagram illustrating a first WUS skip operation mode according to aspects of the present disclosure.

[0017] Figure 9 is a timing diagram illustrating a first WUS skip operation mode according to aspects of the present disclosure.

[0018] Figure 10 is a timing diagram illustrating a second WUS skip operation mode according to aspects of the present disclosure.

[0019] Figure 11A and Figure 11B Techniques for power conservation for wireless devices according to aspects of the present disclosure are shown.

[0020] Figure 12A and Figure 12B Techniques for power conservation by wireless nodes in accordance with aspects of the present disclosure are shown.

[0021] While the features described herein are susceptible to various modifications and alternative forms, specific aspects thereof are shown by way of example in the drawings and described in detail herein. It should be understood, however, that the drawings and detailed description thereof are not intended to limit this disclosure to the specific forms disclosed, but on the contrary, are intended to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the subject matter as defined by the appended claims. DETAILED DESCRIPTION

[0022] In some wireless communication systems, a wireless device may successfully connect to a wireless node and enter an RRC connected state. In this RRC connected state, the wireless device may monitor the physical downlink control channel (PDCCH) to obtain control information, scheduling information, paging information, etc. Instead of continuously monitoring the PDCCH, it is better to monitor the PDCCH according to the schedule in a defined monitoring instance, thereby reducing power consumption. Power consumption can be further reduced by allowing the wireless device to skip some scheduled PDCCH monitoring instances. In some cases, a wake-up signal (WUS) can be used to indicate that the wireless device should monitor the upcoming PDCCH monitoring instance. However, monitoring the WUS uses more power than not monitoring the WUS, and people expect to reduce the power consumption of wireless devices.

[0023] As will be explained further herein, enhanced WUS may be used to indicate that one or more WUS monitoring instances may be skipped.

[0024] The following is a glossary of terms that may be used in this disclosure:

[0025] Memory medium—any of various types of non-transitory memory devices or storage devices. The term "memory medium" is intended to include installation media, such as CD-ROMs, floppy disks, or tape devices; computer system memory or random access memory such as DRAM, DDR RAM, SRAM, EDO RAM, Rambus RAM, etc.; non-volatile memory such as flash memory, magnetic media, such as hard drives or optical storage devices; registers or other similar types of memory elements, etc. Memory media may also include other types of non-transitory memory or combinations thereof. In addition, the memory medium may be located in the first computer system executing the program, or may be located in a different second computer system connected to the first computer system via a network such as the Internet. In the latter case, the second computer system may provide program instructions to the first computer for execution. The term "memory medium" may include two or more memory media that may reside in different locations in different computer systems connected, for example, via a network. The memory medium may store program instructions (e.g., represented as a computer program) that can be executed by one or more processors.

[0026] Carrier Medium—storage media as described above and physical transmission media such as a bus, network, and / or other physical transmission media that carry signals such as electrical, electromagnetic, or digital signals.

[0027] Programmable hardware elements - include various hardware devices that include multiple programmable function blocks connected via programmable interconnects. Examples include FPGAs (field programmable gate arrays), PLDs (programmable logic devices), FPOAs (field programmable object arrays), and CPLDs (complex PLDs). Programmable function blocks can vary from fine-grained (combinational logic units or lookup tables) to coarse-grained (arithmetic logic units or processor cores). Programmable hardware elements may also be referred to as "configurable logic units."

[0028] Computer system—any of various types of computing or processing systems, including a personal computer system (PC), mainframe computer system, workstation, network appliance, Internet appliance, personal digital assistant (PDA), television system, grid computing system, or other device or combination of devices. In general, the term "computer system" can be broadly defined to encompass any device (or combination of devices) having at least one processor that executes instructions from a memory medium.

[0029] User Equipment (UE) (or "UE device") - any of various types of computer systems or devices that are mobile or portable and that perform wireless communication. Examples of UE devices include mobile phones or smartphones (e.g., iPhones, TM , based on Android TM phones), portable gaming devices (e.g., Nintendo DS TM PlayStation Portable TM 、Gameboy Advance TM , iPhone TM ), laptops, wearable devices (e.g., smart watches, smart glasses), PDAs, portable Internet devices, music players, data storage devices or other handheld devices, etc. In general, the term "UE" or "UE device" can be broadly defined to cover any electronic device, computing device and / or telecommunication device (or combination of devices) that can be easily transported by a user and capable of wireless communication.

[0030] Wireless Device—Any of various types of computer systems or devices that perform wireless communications. A wireless device may be portable (or mobile), or may be stationary or fixed in place. A UE is an example of a wireless device.

[0031] Communication Device—Any of various types of computer systems or devices that perform communication, where the communication may be wired or wireless. A communication device may be portable (or mobile), or may be stationary or fixed in place. A wireless device is one example of a communication device. A UE is another example of a communication device.

[0032] Base Station—The term "base station" or "wireless station" has the full scope of its ordinary meaning and includes at least a wireless communication station installed at a fixed location and used to communicate as part of a wireless telephone system or radio system. For example, if a base station is implemented in the context of LTE, it may alternatively be referred to as an "eNodeB" or "eNB." If a base station is implemented in the context of 5G NR, it may alternatively be referred to as a "gNodeB" or "gNB." Although some aspects are described in the context of LTE or 5G NR, references to "eNB," "gNB," "nodeB," "base station," "NB," etc. may also refer to one or more wireless nodes that serve a cell to provide wireless connectivity between user equipment and a generally wider network, and the concepts discussed are not limited to any particular wireless technology. Although some aspects are described in the context of LTE or 5G NR, references to "eNB," "gNB," "nodeB," "base station," "NB," etc. are not intended to limit the concepts discussed herein to any particular wireless technology, and the concepts discussed are applicable to any wireless system.

[0033] Node—As used herein, the term “node” or “wireless node” may refer to one or more devices associated with a cell that provides wireless connectivity between user equipment and a typically wired network.

[0034] Processing element (or processor)—refers to any element or combination of elements capable of performing functions in a device such as user equipment or a cellular network device. A processing element may include, for example, a processor and associated memory, portions or circuits of individual processor cores, an entire processor core, a separate processor, an array of processors, circuits such as ASICs (application-specific integrated circuits), programmable hardware elements such as field-programmable gate arrays (FPGAs), and any of the above combinations.

[0035] Channel - the medium used to transmit information from a sender (transmitter) to a receiver. It should be noted that since the characteristics of the term "channel" may vary according to different wireless protocols, the term "channel" as used in the present invention may be considered to be used in a manner that is consistent with the standard of the type of device to which the term is used. In some standards, the channel width may be variable (e.g., depending on device capabilities, frequency band conditions, etc.). For example, LTE may support scalable channel bandwidths of 1.4 MHz to 20 MHz. In contrast, a WLAN channel may be 22 MHz wide, while a Bluetooth channel may be 1 MHz wide. Other protocols and standards may include different definitions of channels. In addition, some standards may define and use multiple types of channels, such as different channels for uplink or downlink and / or different channels for different purposes such as data, control information, etc.

[0036] Frequency band—The term “frequency band” has the full breadth of its ordinary meaning and includes at least a segment of the spectrum (eg, radio frequency spectrum) in which channels are used or set aside for the same purpose.

[0037] Automatic—refers to an action or operation being performed by a computer system (e.g., software executed by the computer system) or a device (e.g., a circuit, a programmable hardware element, an ASIC, etc.) without requiring user input to directly specify or execute the action or operation. Thus, the term "automatic" is in contrast to operations that are manually performed or specified by a user, where the user provides input to directly perform the operation. An automatic process may be initiated by user-provided input, but the subsequent actions performed "automatically" are not specified by the user, i.e., they are not performed "manually," where the user specifies each action to be performed. For example, a user filling out an electronic form by selecting each field and providing input specifying information (e.g., by typing information, selecting checkboxes, radio selections, etc.) is not manually filling out the form, even though the computer system must update the form in response to the user's actions. The form can be automatically filled out by a computer system, where the computer system (e.g., software executing on the computer system) analyzes the fields of the form and fills it out without requiring any user input to specify the answers to the fields. As indicated above, a user can invoke the automatic filling of a form without participating in the actual filling out of the form (e.g., the user does not manually specify the answers to the fields; they are automatically completed). This specification provides various examples of operations that are automatically performed in response to actions that a user has taken.

[0038] About—refers to a value that is close to the correct or exact value. For example, about can refer to a value that is within 1% to 10% of the exact (or desired) value. However, it should be noted that the actual threshold (or tolerance) may depend on the application. For example, in some aspects, "about" may mean within 0.1% of some specified or desired value, while in various other aspects, the threshold may be, for example, 2%, 3%, 5%, etc., depending on the desires or requirements of the particular application.

[0039] Concurrency—refers to parallel execution or implementation, where tasks, processes, or programs are executed in an at least partially overlapping manner. For example, concurrency can be achieved using "strong" or strict parallelism, where tasks are executed (at least partially) in parallel on respective computing elements, or using "weak parallelism," where tasks are executed in an interleaved manner (e.g., by time multiplexing of execution threads).

[0040] Configured to—Various components may be described as being “configured to” perform one or more tasks. In such contexts, “configured to” is a broad statement that generally means “having the structure” to perform one or more tasks during operation. Thus, a component can be configured to perform a task even when the component is not currently performing the task (e.g., a set of electrical conductors can be configured to electrically connect a module to another module even when the two modules are not connected). In some contexts, “configured to” can be a broad statement that generally means “having the circuitry” to perform one or more tasks during operation. Thus, a component can be configured to perform a task even when the component is not currently turned on. Generally, the circuitry that forms the structure corresponding to “configured to” may include hardware circuitry.

[0041] For ease of description, various components may be described as performing one or more tasks. Such descriptions should be interpreted as including the phrase "configured to." Representing a component as being configured to perform one or more tasks expressly intends that the component not be interpreted under 35 U.S.C. §112(f).

[0042] Exemplary Wireless Communication Systems

[0043] Now go to Figure 1 , shows a simplified example of a wireless communication system according to some aspects. Note that, Figure 1 The system is only one example of a possible system, and features of the present disclosure may be implemented in any of a variety of systems as desired.

[0044] As shown, the exemplary wireless communication system includes a base station 102A that communicates with one or more user devices 106A, 106B, 106N, etc. via a transmission medium. Each user device may be referred to herein as a "user equipment" (UE). Therefore, user device 106 is referred to as a UE or UE device.

[0045] Base station (BS) 102A may be a base transceiver station (BTS) or a cell site ("cellular base station") and may include hardware that enables wireless communications with UEs 106A through 106N.

[0046] The communication area (or coverage area) of a base station may be referred to as a "cell". The base station 102A and the UE 106 may be configured to communicate over a transmission medium using any of a variety of radio access technologies (RATs), also known as wireless communication technologies or telecommunication standards, such as GSM, UMTS (associated with, for example, WCDMA or TD-SCDMA air interfaces), LTE, LTE-Advanced (LTE-A), 5G New Radio (5G-NR), HSPA, 3GPP2 CDMA2000 (e.g., 1xRTT, 1xEV-DO, HRPD, eHRPD), and the like. Note that if the base station 102A is implemented in the context of LTE, it may alternatively be referred to as an "eNodeB" or "eNB". Note that if the base station 102A is implemented in the context of 5G NR, it may alternatively be referred to as a "gNodeB" or "gNB".

[0047] As shown, base station 102A may also be configured to communicate with network 100 (e.g., a cellular service provider's core network, a telecommunications network such as the Public Switched Telephone Network (PSTN), and / or the Internet, among other possibilities). Thus, base station 102A may facilitate communications between user devices and / or between user devices and network 100. In particular, cellular base station 102A may provide UE 106 with various communication capabilities, such as voice, SMS, and / or data services.

[0048] Base station 102A and other similar base stations (such as base stations 102B...102N) operating according to the same or different cellular communication standards can therefore be provided as a network of cells that can provide continuous or nearly continuous overlapping service to UEs 106A-N and similar devices over a geographic area via one or more cellular communication standards.

[0049] Thus, although base station 102A may function as Figure 1 106A-N, each UE 106 may also be capable of receiving signals from (and possibly within communication range of) one or more other cells (which may be provided by base stations 102B-N and / or any other base stations), which may be referred to as "neighboring cells." Such cells may also be capable of facilitating communications between user devices and / or between user devices and network 100. Such cells may include "macro" cells, "micro" cells, "pico" cells, and / or cells of any other variety of granularities of service area size. For example, in Figure 1 The base stations 102A-102B shown in FIG may be macro cells, while the base station 102N may be a micro cell. Other configurations are also possible.

[0050] In some aspects, the base station 102A may be a next generation base station, such as a 5G New Radio (5G NR) base station or "gNB". In some aspects, the gNB may be connected to a legacy evolved packet core (EPC) network and / or to an NR core (NRC) / 5G core (5GC) network. In addition, a gNB cell may include one or more transition and reception points (TRPs). In addition, a UE capable of operating in accordance with 5GNR may be connected to one or more TRPs within one or more gNBs. For example, the base station 102A and one or more other base stations 102 may support joint transmissions such that the UE 106 may be able to receive transmissions from multiple base stations (and / or multiple TRPs provided by the same base station). For example, as Figure 1 As shown, base station 102A and base station 102C are both shown serving UE 106A.

[0051] It is noted that the UE 106 is capable of communicating using multiple wireless communication standards. For example, in addition to at least one cellular communication protocol (e.g., GSM, UMTS (associated with, for example, WCDMA or TD-SCDMA air interfaces), LTE, LTE-A, 5G NR, HSPA, HSDPA, HSUPA, 3GPP2 CDMA2000 (e.g., 1xRTT, 1xEV-DO, HRPD, eHRPD), etc.), the UE 106 can be configured to communicate using wireless networking (e.g., Wi-Fi) and / or peer-to-peer wireless communication protocols (e.g., Bluetooth, Wi-Fi peer-to-peer, etc.). If desired, the UE 106 can also or alternatively be configured to communicate using one or more global navigation satellite systems (GNSS, such as GPS or GLONASS), one or more mobile television broadcast standards (e.g., Advanced Television Systems Committee - Mobile / Handheld (ATSC-M / H)), and / or any other wireless communication protocols. Other combinations of wireless communication standards (including more than two wireless communication standards) are also possible.

[0052] Example User Equipment (UE)

[0053] Figure 2 1. User equipment 106 (e.g., one of devices 106A through 106N) is shown in accordance with some aspects in communication with base station 102. UE 106 may be a device with cellular communication capabilities, such as a mobile phone, handheld device, computer, laptop, tablet, smartwatch or other wearable device, or virtually any type of wireless device.

[0054] The UE 106 may include a processor (processing element) configured to execute program instructions stored in a memory. The UE 106 may perform any of the method aspects described herein by executing such stored instructions. Alternatively or in addition, the UE 106 may include a programmable hardware element, such as an FPGA (field programmable gate array), an integrated circuit, and / or any of various other possible hardware components configured to perform (e.g., individually or in combination) any of the method aspects described herein or any portion of any of the method aspects described herein.

[0055] The UE 106 may include one or more antennas for communicating using one or more wireless communication protocols or technologies. In some aspects, the UE 106 may be configured to communicate using, for example, NR or LTE using at least some shared radio components. As additional possibilities, the UE 106 may be configured to communicate using CDMA2000 (1xRTT / 1xEV-DO / HRPD / eHRPD) or LTE using a single shared radio component and / or GSM or LTE using a single shared radio component. The shared radio may be coupled to a single antenna or to multiple antennas (e.g., for MIMO) for performing wireless communications. Generally, the radio component may include any combination of a baseband processor, analog radio frequency (RF) signal processing circuitry (e.g., including filters, mixers, oscillators, amplifiers, etc.), or digital processing circuitry (e.g., for digital modulation and other digital processing). Similarly, the radio component may implement one or more receive and transmit chains using the aforementioned hardware. For example, the UE 106 may share one or more portions of a receive and / or transmit chain between multiple wireless communication technologies such as those discussed above.

[0056] In some aspects, the UE 106 may include a separate transmit chain and / or receive chain (e.g., including separate antennas and other radio components) for each wireless communication protocol with which it is configured to communicate. As another possibility, the UE 106 may include one or more radio components shared between multiple wireless communication protocols, and one or more radio components used uniquely by a single wireless communication protocol. For example, the UE 106 may include a shared radio component for communicating using either LTE or 5G NR (or, in various possibilities, either LTE or 1xRTT, or either LTE or GSM), and separate radio components for communicating using each of Wi-Fi and Bluetooth. Other configurations are also possible.

[0057] In some embodiments, a downlink resource grid may be used for downlink transmissions from any of the base stations 102 to the UE 106, while uplink transmissions may utilize similar techniques. The grid may be a time-frequency grid, referred to as a resource grid or a time-frequency resource grid, which is the physical resource in the downlink in each time slot. For OFDM systems, such a time-frequency plane representation is common practice, which makes radio resource allocation intuitive. Each column and each row of the resource grid corresponds to an OFDM symbol and an OFDM subcarrier, respectively. The duration of the resource grid in the time domain corresponds to a time slot in the radio frame. The smallest time-frequency unit in the resource grid is represented as a resource element. Each resource grid may include multiple resource blocks, which describe the mapping of specific physical channels to resource elements. Each resource block includes a collection of resource elements. Such resource blocks are used to transmit several different physical downlink channels.

[0058] The physical downlink shared channel (PDSCH) can carry user data and higher layer signaling to the UE 106. The physical downlink control channel (PDCCH) can carry information about, among other things, the transport format and resource allocation associated with the PDSCH channel. It can also inform the UE 106 of the transport format, resource allocation, and H-ARQ (Hybrid Automatic Repeat Request) information associated with the uplink shared channel. Typically, downlink scheduling (allocation of control and shared channel resource blocks to the UE 102 within a cell) can be performed at any of the base stations 102 based on channel quality information fed back from any of the UEs 106. Downlink resource allocation information can be sent on the PDCCH for (e.g., allocated to) each of the UEs.

[0059] PDCCH can use control channel elements (CCE) to transmit control information. Before being mapped to resource elements, the PDCCH complex-valued symbols can first be organized into quadruples, which can then be arranged using a sub-block interleaver for rate matching. One or more of these CCEs can be used to transmit each PDCCH, where each CCE can correspond to four sets of nine physical resource elements, called resource element groups (REGs). Four quadrature phase shift keying (QPSK) symbols can be mapped to each REG. Depending on the size of the downlink control information (DCI) and the channel conditions, one or more CCEs can be used to transmit the PDCCH. There may be four or more different PDCCH formats defined in LTE with different numbers of CCEs (e.g., aggregation levels, L=1, 2, 4, or 8).

[0060] Exemplary Communication Devices

[0061] Figure 3 1 shows an exemplary simplified block diagram of a communication device 106 according to some aspects. Figure 3 The block diagram of the communication device is only one example of a possible communication device. According to various aspects, the communication device 106 can be, among other devices, a user equipment (UE) device, a mobile device or mobile station, a wireless device or wireless station, a desktop computer or computing device, a mobile computing device (e.g., a laptop, notebook, or portable computing device), a tablet computer, and / or a combination of devices. As shown, the communication device 106 may include a set of components 300 configured to perform core functions. For example, the set of components may be implemented as a system on a chip (SOC), which may include parts for various purposes. Alternatively, the set of components 300 may be implemented as individual components or groups of components for various purposes. This set of components 300 may be coupled (e.g., communicatively; directly or indirectly) to various other circuits of the communication device 106.

[0062] For example, the communication device 106 may include various types of memory (e.g., including NAND flash memory 310), input / output interfaces such as a connector I / F 320 (e.g., for connecting to a computer system; a docking station; a charging station; input devices such as a microphone, a camera, a keyboard; output devices such as a speaker; etc.), a display 360 that may be integrated with the communication device 106 or external to it, and wireless communication circuitry 330 (e.g., for LTE, LTE-A, NR, UMTS, GSM, CDMA2000, Bluetooth, Wi-Fi, NFC, GPS, etc.). In some aspects, the communication device 106 may include wired communication circuitry (not shown), such as, for example, a network interface card for Ethernet.

[0063] Wireless communication circuitry 330 may be (e.g., communicatively; directly or indirectly) coupled to one or more antennas, such as one or more antennas 335 as shown. Wireless communication circuitry 330 may include cellular communication circuitry and / or short- to medium-range wireless communication circuitry, and may include multiple receive chains and / or multiple transmit chains for receiving and / or transmitting multiple spatial streams, such as in a multiple-input, multiple-output (MIMO) configuration.

[0064] In some aspects, as further described below, the cellular communication circuitry 330 can include one or more receive chains for multiple RATs (including and / or coupled to (e.g., communicatively; directly or indirectly) dedicated processors and / or radios (e.g., a first receive chain for LTE and a second receive chain for 5G NR). Furthermore, in some aspects, the cellular communication circuitry 330 can include a single transmit chain that can switch between radios dedicated to specific RATs. For example, a first radio can be dedicated to a first RAT (e.g., LTE) and can communicate with a dedicated receive chain and a transmit chain shared with a second radio. The second radio can be dedicated to a second RAT (e.g., 5G NR). NR) and can communicate with a dedicated receive chain and a shared transmit chain. In some aspects, the second RAT can operate at millimeter wave frequencies. Because millimeter wave systems operate at higher frequencies than typical frequencies in LTE systems, signals in the millimeter wave frequency range are severely attenuated by environmental factors. To help address this attenuation issue, millimeter wave systems typically utilize beamforming and include more antennas than LTE systems. These antennas can be organized into antenna arrays or panels composed of individual antenna elements. These antenna arrays can be coupled to a radio link.

[0065] The communication device 106 may also include and / or be configured for use with one or more user interface elements. User interface elements may include various elements such as a display 360 (which may be a touch screen display), a keyboard (which may be a separate keyboard or may be implemented as part of the touch screen display), a mouse, a microphone and / or speakers, one or more cameras, one or more buttons, and / or any of a variety of other elements capable of providing information to a user and / or receiving or interpreting user input.

[0066] The communication device 106 may also include one or more smart cards 345 having SIM (Subscriber Identity Module) functionality, such as one or more UICC cards (one or more Universal Integrated Circuit Cards) 345 .

[0067] As shown, the SOC 300 may include a processor 302 that may execute program instructions for the communication device 106 and a display circuit 304 that may perform graphics processing and provide display signals to a display 360. The one or more processors 302 may also be coupled to a memory management unit (MMU) 340 (the MMU may be configured to receive addresses from the one or more processors 302 and translate those addresses into locations in memory (e.g., memory 306, read-only memory (ROM) 350, NAND flash memory 310)), and / or to other circuits or devices such as the display circuit 304, wireless communication circuitry 330, connector I / F 320, and / or display 360. The MMU 340 may be configured to perform memory protection and page table translation or setup. In some aspects, the MMU 340 may be included as part of the processor 302.

[0068] As described above, the communication device 106 can be configured to communicate using wireless and / or wired communication circuits. As described herein, the communication device 106 may include hardware and software components for implementing any of the various features and technologies described herein. For example, by executing program instructions stored on a memory medium (e.g., a non-transient computer-readable memory medium), the processor 302 of the communication device 106 can be configured to implement part or all of the features described herein. Alternatively (or in addition thereto), the processor 302 can be configured as a programmable hardware element, such as an FPGA (field programmable gate array) or an ASIC (application-specific integrated circuit). Alternatively (or in addition thereto), in combination with one or more components in other components 300, 304, 306, 310, 320, 330, 340, 345, 350, 360, the processor 302 of the communication device 106 can be configured to implement part or all of the features described herein.

[0069] Furthermore, as described herein, processor 302 may include one or more processing elements. Thus, processor 302 may include one or more integrated circuits (ICs) configured to perform the functions of processor 302. Furthermore, each integrated circuit may include circuits (e.g., a first circuit, a second circuit, etc.) configured to perform one or more functions of processor 302.

[0070] Furthermore, as described herein, wireless communication circuitry 330 may include one or more processing elements. In other words, one or more processing elements may be included in wireless communication circuitry 330. Thus, wireless communication circuitry 330 may include one or more integrated circuits (ICs) configured to perform the functions of wireless communication circuitry 330. Furthermore, each integrated circuit may include circuitry (e.g., a first circuit, a second circuit, etc.) configured to perform the functions of wireless communication circuitry 330.

[0071] Exemplary Base Station

[0072] Figure 4 1 shows an exemplary block diagram of a base station 102 according to some aspects. Figure 4 The base station 102 is only one example of a possible base station. As shown, the base station 102 may include a processor 404 that may execute program instructions for the base station 102. The processor 404 may also be coupled to a memory management unit (MMU) 440 or other circuit or device that may be configured to receive addresses from the processor 404 and translate those addresses into locations in memory (e.g., memory 460 and read-only memory (ROM) 450).

[0073] The base station 102 may include at least one network port 470. The network port 470 may be configured to couple to a telephone network and provide access to the telephone network as described above. Figure 1 and Figure 2 Multiple devices of the telephone network described in, such as UE device 106.

[0074] The network port 470 (or an additional network port) may also or alternatively be configured to couple to a cellular network, such as a core network of a cellular service provider. The core network may provide mobility-related services and / or other services to multiple devices, such as the UE device 106. In some cases, the network port 470 may couple to a telephone network via the core network, and / or the core network may provide a telephone network (e.g., in other UE devices served by the cellular service provider).

[0075] In some aspects, base station 102 can be a next-generation base station, such as a 5G New Radio (5G NR) base station or "gNB." In such aspects, base station 102 can connect to a legacy evolved packet core (EPC) network and / or to an NR core (NRC) / 5G core (5GC) network. Furthermore, base station 102 can be considered a 5G NR cell and can include one or more transition and reception points (TRPs). Furthermore, UEs capable of operating in accordance with 5G NR can connect to one or more TRPs within one or more gNBs.

[0076] Base station 102 may include at least one antenna 434 and possibly multiple antennas. The at least one antenna 434 may be configured to function as a wireless transceiver and may be further configured to communicate with UE device 106 via radio 430. Antenna 434 communicates with radio 430 via communication chain 432. Communication chain 432 may be a receive chain, a transmit chain, or both. Radio 430 may be configured to communicate via various wireless communication standards, including but not limited to 5G NR, LTE, LTE-A, GSM, UMTS, CDMA2000, Wi-Fi, and the like.

[0077] The base station 102 may be configured to perform wireless communications using multiple wireless communication standards. In some cases, the base station 102 may include multiple radios that enable the base station 102 to communicate according to multiple wireless communication technologies. For example, as one possibility, the base station 102 may include an LTE radio component for performing communications according to LTE and a 5G NR radio component for performing communications according to 5GNR. In this case, the base station 102 may be able to operate as both an LTE base station and a 5G NR base station. When the base station 102 supports millimeter waves, the 5G NR radio component may be coupled to one or more millimeter wave antenna arrays or panels. As another possibility, the base station 102 may include a multimode radio component capable of performing communications according to any one of multiple wireless communication technologies (e.g., 5GNR and LTE, 5G NR and Wi-Fi, LTE and Wi-Fi, LTE and UMTS, LTE and CDMA2000, UMTS and GSM, etc.).

[0078] As further described later herein, BS 102 may include hardware and software components for implementing or supporting specific implementations of the features described herein. The processor 404 of the base station 102 may be configured to implement or support some or all of the embodiments of the methods described herein, for example, by executing program instructions stored on a memory medium (e.g., a non-transitory computer-readable memory medium). Alternatively, the processor 404 may be configured as a programmable hardware element such as an FPGA (field programmable gate array), or as an ASIC (application-specific integrated circuit), or a combination thereof. Alternatively (or in addition), in combination with one or more of the other components 430, 432, 434, 440, 450, 460, and 470, the processor 404 of the base station 102 may be configured to implement or support some or all of the embodiments of the features described herein.

[0079] Furthermore, as described herein, one or more processors 404 may include one or more processing elements. Thus, processor 404 may include one or more integrated circuits (ICs) configured to perform the functions of processor 404. Furthermore, each integrated circuit may include circuitry (e.g., a first circuit, a second circuit, etc.) configured to perform the functions of one or more processors 404.

[0080] Furthermore, as described herein, radio 430 may include one or more processing elements. Thus, radio 430 may include one or more integrated circuits (ICs) configured to perform the functions of radio 430. Furthermore, each integrated circuit may include circuitry (e.g., a first circuit, a second circuit, etc.) configured to perform the functions of radio 430.

[0081] Exemplary cellular communications circuitry

[0082] Figure 5 An exemplary simplified block diagram of a cellular communication circuit according to some aspects is shown. Note that Figure 5 The block diagram of the cellular communication circuitry is only one example of possible cellular communication circuitry; other circuitry, such as circuitry that includes or is coupled to sufficient antennas for different RATs to perform uplink activities using separate antennas, or circuitry that includes or is coupled to fewer antennas, e.g., circuitry that can be shared between multiple RATs, is also possible. According to some aspects, the cellular communication circuitry 330 can be included in a communication device such as the communication device 106 described above. As described above, the communication device 106 can be a user equipment (UE) device, a mobile device or mobile station, a wireless device or wireless station, a desktop computer or computing device, a mobile computing device (e.g., a laptop, notebook, or portable computing device), a tablet computer, and / or a combination of devices, among other devices.

[0083] The cellular communication circuitry 330 may be (e.g., communicatively; directly or indirectly) coupled to one or more antennas, such as antennas 335a-b and 336 as shown. In some aspects, the cellular communication circuitry 330 may include dedicated receive chains for multiple RATs (including and / or coupled to (e.g., communicatively; directly or indirectly) dedicated processors and / or radio components (e.g., a first receive chain for LTE and a second receive chain for 5G NR). For example, Figure 5 As shown, the cellular communication circuit 330 may include a first modem 510 and a second modem 520. The first modem 510 may be configured for communication according to a first RAT (e.g., such as LTE or LTE-A), and the second modem 520 may be configured for communication according to a second RAT (e.g., such as 5G NR).

[0084] As shown, the first modem 510 may include one or more processors 512 and a memory 516 in communication with the processor 512. The modem 510 may be in communication with a radio frequency (RF) front end 530. The RF front end 530 may include circuitry for transmitting and receiving radio signals. For example, the RF front end 530 may include receive circuitry (RX) 532 and transmit circuitry (TX) 534. In some aspects, the receive circuitry 532 may be in communication with a downlink (DL) front end 550, which may include circuitry for receiving radio signals via the antenna 335a.

[0085] Similarly, the second modem 520 may include one or more processors 522 and a memory 526 in communication with the processor 522. The modem 520 may be in communication with an RF front end 540. The RF front end 540 may include circuitry for transmitting and receiving radio signals. For example, the RF front end 540 may include receive circuitry 542 and transmit circuitry 544. In some aspects, the receive circuitry 542 may be in communication with a DL front end 560, which may include circuitry for receiving radio signals via the antenna 335b.

[0086] In some aspects, the switch 570 can couple the transmit circuitry 534 to an uplink (UL) front end 572. Furthermore, the switch 570 can couple the transmit circuitry 544 to the UL front end 572. The UL front end 572 can include circuitry for transmitting radio signals via the antenna 336. Thus, when the cellular communication circuitry 330 receives an instruction to transmit according to a first RAT (e.g., via a transmit chain including the transmit circuitry 534 and the UL front end 572), the switch 570 can be switched to a first state that allows the first modem 510 to transmit signals according to the first RAT (e.g., via a transmit chain including the transmit circuitry 534 and the UL front end 572). Similarly, when the cellular communication circuitry 330 receives an instruction to transmit according to a second RAT (e.g., via a transmit chain including the transmit circuitry 544 and the UL front end 572), the switch 570 can be switched to a second state that allows the second modem 520 to transmit signals according to the second RAT (e.g., via a transmit chain including the transmit circuitry 544 and the UL front end 572).

[0087] As described herein, the first modem 510 and / or the second modem 520 may include hardware and software components for implementing any of the various features and techniques described herein. For example, by executing program instructions stored on a memory medium (e.g., a non-transitory computer-readable memory medium), the processors 512, 522 may be configured to implement some or all of the features described herein. Alternatively (or in addition), the processors 512, 522 may be configured as programmable hardware elements, such as an FPGA (field programmable gate array) or as an ASIC (application-specific integrated circuit). Alternatively (or in addition), in combination with one or more of the other components 530, 532, 534, 540, 542, 544, 550, 570, 572, 335, and 336, the processors 512, 522 may be configured to implement some or all of the features described herein.

[0088] Furthermore, as described herein, processors 512, 522 may include one or more processing elements. Thus, processors 512, 522 may include one or more integrated circuits (ICs) configured to perform the functions of processors 512, 522. Furthermore, each integrated circuit may include circuits (e.g., a first circuit, a second circuit, etc.) configured to perform the functions of processors 512, 522.

[0089] In some aspects, the cellular communication circuitry 330 may include only one transmit / receive chain. For example, the cellular communication circuitry 330 may not include the modem 520, the RF front end 540, the DL front end 560, and / or the antenna 335b. As another example, the cellular communication circuitry 330 may not include the modem 510, the RF front end 530, the DL front end 550, and / or the antenna 335a. In some aspects, the cellular communication circuitry 330 may also not include the switch 570, and the RF front end 530 or the RF front end 540 may communicate with the UL front end 572, for example, directly.

[0090] Exemplary Network Elements

[0091] Figure 6 An exemplary block diagram of a network element 600 according to some aspects is shown. According to some aspects, the network element 600 may implement one or more logical functions / entities of a cellular core network, such as a mobility management entity (MME), a serving gateway (S-GW), an access and management function (AMF), a session management function (SMF), a network slice quota management (NSQM) function, etc. It should be noted that Figure 6The network element 600 is only one example of a possible network element 600. As shown, the core network element 600 may include one or more processors 604 that may execute program instructions for the core network element 600. The processors 604 may also be coupled to a memory management unit (MMU) 640 (which may be configured to receive addresses from the processors 604 and translate these addresses into locations in memory (e.g., memory 660 and read-only memory (ROM) 650)), or to other circuits or devices.

[0092] The network element 600 may include at least one network port 670. The network port 670 may be configured to couple to one or more base stations and / or other cellular network entities and / or devices. The network element 600 may communicate with the base stations (e.g., eNB / gNB) and / or other network entities / devices using any of a variety of communication protocols and / or interfaces.

[0093] As further described later herein, network element 600 may include hardware and software components for implementing or supporting the implementation of the features described herein. The processor 604 of core network element 600 may be configured to implement or support the implementation of part or all of the methods described herein, for example, by executing program instructions stored on a memory medium (e.g., a non-transitory computer-readable memory medium). Alternatively, processor 604 may be configured as a programmable hardware element such as an FPGA (field programmable gate array) or as an ASIC (application-specific integrated circuit), or a combination thereof.

[0094] Radio Resource Control (RRC) status

[0095] Various cellular communication technologies include the use of a Radio Resource Control (RRC) protocol (e.g., which may facilitate connection establishment and release, radio bearer establishment, reconfiguration, and release) and / or various other possible signaling functions supporting the air interface between a wireless device and a cellular base station.

[0096] A wireless device may generally operate in one of several possible states with respect to RRC. For example, in LTE, a wireless device may operate in an RRC connected state (e.g., where the wireless device may perform continuous data transmission and where handovers between cells are managed by the network and where access stratum (AS) context information is retained for the wireless device), or may operate in an RRC idle state (e.g., where the wireless device may operate in a battery-efficient state when not performing continuous data transmission, where the wireless device may handle its cell reselection activities, and where the network may not retain AS context information for the wireless device). In some cases, the wireless device may also operate in an RRC inactive state, where radio bearers for the network are suspended, but the wireless device and the wireless network maintain AS context, which facilitates faster recovery to the RRC connected state.

[0097] In some cases, while a wireless device is in an RRC Connected state, the wireless device may continuously monitor for PDCCH transmissions addressed to the wireless device. Continuously monitoring a channel can consume significant power. For example, the RF front end and corresponding modem may need to remain powered on, and one or more processors may be used to attempt to decode the transmission while monitoring the channel. To help reduce the amount of power used by the wireless device, discontinuous reception (DRX) may be implemented while in the RRC Connected state. Using DRX, the wireless device may receive a schedule from the wireless network regarding when the wireless device should monitor the PDCCH and when the wireless device does not need to monitor the PDCCH. The time instances when the wireless device should monitor the PDCCH (referred to as the On Duration) and the time instances when the wireless device does not need to monitor the PDCCH (referred to as the Off Duration) together constitute a DRX cycle. Because the wireless device does not need to monitor the PDCCH during the Off Duration, the wireless device may enter a relatively low-power state (e.g., a sleep state or other lower-power state) compared to the On Duration. For example, the wireless device may partially or completely power down the RF front end, modem, one or more processors, and / or other components that may be used to receive uplink transmissions during the Off Duration. Although monitoring the PDCCH during the DRX On-Duration reduces power consumption compared to continuously monitoring the PDCCH, additional power may be saved by not monitoring (eg, skipping) the PDCCH during certain DRX On-Durations.

[0098] Now go to Figure 7, a timing diagram 700 illustrates receiving a physical downlink control channel (PDCCH) based on a WUS according to aspects of the present disclosure. The timing diagram 700 illustrates the relationship between WUS 716 transmissions and PDCCH 718 transmissions during a plurality of DRX cycles 704 on a time axis 702. As shown, the DRX cycle 704 includes a portion of a first DRX cycle that ends at time 706, a second DRX cycle that starts at time 706 and ends at time 708, and a third DRX cycle that starts at time 708 and ends at time 710. The second and third DRX cycles include an on-duration 712 and an off-duration 714, while the first DRX cycle includes an off-duration 714. It will be appreciated that the first DRX cycle may include an on-duration 712, but the on-duration 712 may occur at Figure 7 712A. In some cases, the wireless device may be configured to monitor for a WUS 716 transmitted by the wireless node before the on-Duration 712 during which the PDCCH 718 may be transmitted. In this example, the WUS 716A may be associated with and transmitted before the PDCCH 718A during a time offset 720 before the on-Duration 712A associated with the PDCCH 718A. If the wireless device receives the WUS 716A, the wireless device may monitor for the PDCCH 718A during the on-Duration 712A. This process may be repeated for each DRX cycle. For example, the wireless device may monitor for the WUS during the time offset 720 before the on-Duration 712B. If the wireless device does not receive a WUS (e.g., a skipped WUS 724A), the wireless device may not monitor for the PDCCH (e.g., a skipped PDCCH 722A) during the next on-Duration 712B. For example, the wireless device may not start the on-duration timer during the next on-duration 712B (e.g., a monitoring opportunity for the PDCCH). The wireless device may enter or remain in a sleep state or lower power state for all or a portion of the next on-duration 712B. The wireless device then repeats the process, monitoring for another WUS during a time offset 720 before another on-duration, and so on.

[0099] The wireless device may receive a configuration message configuring connected mode DRX, for example, from a wireless node. In some cases, the wireless device may receive the configuration message from the wireless network via a radio resource control (RRC) message. The configuration message may define the DRX cycle 704, for example, by providing DRX cycle 704 timing information. In some cases, the configuration message may also include information about the WUS 716. For example, the configuration message may indicate a time offset 718 starting from the DRX On Duration 712. The time offset 718 may define a WUS monitoring opportunity period prior to the DRX On Duration 712 during which the wireless device may monitor for the WUS 716 signal. In some cases, the time offset 720 may have a predefined duration. In other cases, the time offset 720 may have a configurable duration, for example, as indicated in the configuration message.

[0100] In some cases, the WUS 716 may be a relatively short and simple signal compared to the PDCCH 718. In some cases, a wireless device may have a dedicated, simplified receiver for receiving the WUS 716 while using less power than a receiver for receiving the PDCCH 718. In some cases, a wireless device may use the same receiver to receive both the WUS 716 and the PDCCH 718, but may be able to reduce the amount of power consumed by the receiver when receiving the WUS 716, for example by shutting down portions of the receiver, processor, etc. While monitoring for the WUS 716 during a specified interval may reduce power consumption compared to monitoring for the PDCCH 718 during a specified interval, additional power may be saved if the wireless device can skip monitoring for the WUS 716 during one or more WUS monitoring opportunities. Skipping WUS transmissions may benefit the wireless network. For example, a wireless node may be able to use the skipped WUS monitoring opportunities to serve other wireless devices.

[0101] According to various aspects of the present disclosure, WUS (e.g., EWUS) can be enhanced by adding additional information to the WUS to indicate to the UE whether the UE can skip monitoring for the WUS in subsequent WUS monitoring opportunities. In some cases, the WUS signal can be transmitted as a DCI message (such as a DCI format 2-6 message), and bits can be added to the DCI message to indicate whether subsequent WUS monitoring opportunities can be skipped, and if so, how many subsequent WUS monitoring opportunities can be skipped. For example, a single bit can be added to indicate whether skipping of WUS monitoring opportunities is allowed, and a second bit can be added to indicate how many WUS monitoring opportunities can be skipped. In some cases, there may be one or more WUS skip operation modes.

[0102] For example, in a first enhanced WUS skipping operation mode, the wireless device may determine that the wireless device may skip one or more subsequent WUS monitoring opportunities while monitoring for PDCCH messages associated with the one or more skipped WUSs. In the first WUS skipping mode, a single WUS may indicate that the wireless device should monitor for multiple PDCCH messages, but it may skip monitoring for WUSs associated with these multiple PDCCH messages.

[0103] Figure 8 800 is a timing diagram illustrating a first WUS skipping mode of operation according to aspects of the present disclosure. The timing diagram 800 also illustrates on a time axis 802 the relationship between WUS 816 transmissions and PDCCH 818 transmissions during a plurality of DRX cycles of DRX cycle 804A to DRX cycle 804F. In the timing diagram 800, for clarity, the WUS 816 transmissions are shown in FIG. Figure 7 In comparison, the DRX on-duration and the DRX off-duration as well as the monitoring interval are omitted.

[0104] In some cases, a WUS skip value may be encoded into the WUS 816 to indicate whether a WUS monitoring opportunity may be skipped or how many WUS monitoring opportunities may be skipped. For example, the WUS skip value may be a bit added to the WUS 816 that indicates whether the wireless device may skip a WUS monitoring opportunity. In some cases, a WUS skip value of 0 may indicate that the wireless device may not skip a WUS monitoring opportunity. In such a case, the wireless device may then monitor for PDCCH during the next on-duration and monitor for another WUS during the next WUS monitoring opportunity, as described above with respect to Figure 7As discussed. In some cases, a WUS skip value of 1 may indicate that the wireless device may skip the next WUS monitoring opportunity. For example, the wireless node may determine that it needs to transmit multiple PDCCH messages to the wireless device during multiple DRX cycles, such as if the wireless device sends or receives data within a period of time. The wireless node may then transmit a first WUS 816A with an encoded skip value of 1 to the wireless device during the WUS monitoring opportunity. The wireless device may receive the first WUS 816A during the WUS monitoring opportunity and decode the WUS. In the case of a WUS skip value of 1, the wireless device may determine that the wireless device may skip a WUS monitoring opportunity and monitor for an additional PDCCH opportunity in addition to the next PDCCH monitoring opportunity. For example, the UE may monitor for the first PDCCH 818A during the next on-duration in the second DRX cycle 804B and monitor for the second PDCCH 818B during the on-duration in the third DRX cycle 804C (e.g., the on-duration immediately following the next on-duration) without monitoring for the skipped WUS 824B. After skipping the WUS 824B, the wireless device may resume monitoring for the WUS during the next WUS interval and receive the second WUS 816B. The second WUS 816B may also include a WUS skip value of 1, indicating that the wireless device may skip monitoring for the skipped WUS 824C while monitoring for PDCCHs 818C and 818D. In some cases, if the wireless device does not receive a WUS (such as the skipped WUS 824A in the fifth DRX cycle 804E), the wireless device may perform the following steps as described above with respect to the WUS 824B. Figure 7 The RX cycle 804 operates as described and does not monitor for a PDCCH, such as the skipped PDCCH 822 in the sixth DRX cycle 804F.

[0105] In some cases, the first WUS skip mode can be expanded to support skipping additional WUS monitoring opportunities. In some cases, the WUS skip value can indicate the number of WUS monitoring opportunities that can be skipped. For example, as described above, a WUS skip value of 0 can indicate that the wireless device should not skip a WUS monitoring opportunity, while a WUS skip value of 1 can indicate that the wireless device can skip one WUS monitoring opportunity. In some cases, larger WUS skip values ​​can be handled in a similar manner. For example, a second bit can be added to the WUS to enable encoding of up to four values ​​(e.g., 0 to 3) in the WUS skip value.

[0106] Figure 9 9 is a timing diagram illustrating a first WUS skip mode of operation according to aspects of the present disclosure. Figure 9, the wireless device may receive a first WUS 916A during a WUS monitoring opportunity and decode the first WUS 916A. In this example, the WUS skip value is 2, and the wireless device may determine that the wireless device may skip monitoring for two skipped WUSs 924A, 924B in DRX cycles 904B and 904C, respectively, and monitor for two additional PDCCHs 918B, 918C in DRX cycles 904C and 904D, respectively, in addition to monitoring for the next PDCCH 918A in DRX cycle 904B. In some cases, if the wireless device does not receive a WUS (such as the skipped WUS 924C in the fourth DRX cycle 804D), the wireless device may perform the following steps as described above with respect to Figure 7 and Figure 8 922 in the fifth DRX cycle 904E. Similarly, if the WUS skip value is 3, the wireless device may skip monitoring for three skipped WUS monitoring opportunities and monitor for three additional PDCCH monitoring opportunities in addition to monitoring at the next PDCCH monitoring opportunity. In some cases, the number of skipped WUS monitoring opportunities may be limited because it may be difficult for the wireless node to accurately schedule too far in advance. For example, the number of skipped WUS monitoring opportunities may be limited to 3.

[0107] In some cases, in the second WUS skipping mode of operation, the wireless device may determine that the wireless device may skip one or more subsequent WUS monitoring opportunities and the PDCCH monitoring opportunities associated with the one or more skipped WUS monitoring opportunities. This mode of operation may be useful if the wireless node determines that the wireless device will not need to transmit or receive data for a period of time. For example, the wireless node may determine that the wireless device is periodically transmitting or receiving data with relatively large intervals between transmissions, or the wireless node may have multiple, relatively small, non-time-critical data sets for the wireless device, which the wireless node may batch together and then send to the wireless device. By reducing the number of transmissions, the wireless device may be able to reduce power consumption and remain in a lower power state longer.

[0108] In some cases, in this second WUS skip mode of operation, the WUS skip value may also be encoded into the WUS. Figure 7 and Figure 8As described in the first WUS skip operation mode, a WUS skip value may be encoded as one or two bits in the WUS. In some cases, a WUS skip value of 0 may indicate that the wireless device may not skip WUS monitoring opportunities. In some cases, a WUS skip value of 1 may indicate that the wireless device may skip one WUS monitoring opportunity and the associated PDCCH monitoring opportunity. Similarly, a WUS skip value of 2 or a WUS skip value of 3 may indicate that the wireless device may skip a corresponding number of WUS monitoring opportunities and the corresponding associated PDCCH monitoring opportunities.

[0109] Figure 10 FIG. 1 is a timing diagram 1000 illustrating a second WUS skip mode of operation according to aspects of the present disclosure. Figure 10 In the first example, the wireless device may receive and decode the first WUS 1016A in the first DRX cycle 1004A to determine that the WUS skip value is 1. Subsequently, the wireless device may determine that the wireless device may not monitor for the skipped WUS 1024A in the second DRX cycle 1004B. The wireless device may also not monitor for the skipped PDCCH 1022A associated with the skipped WUS 1024A in the third DRX cycle 1004C. The wireless device may still monitor for the next PDCCH 1018A associated with the first WUS 1016A in the second DRX cycle 1004B.

[0110] exist Figure 10 In another example, the wireless device may decode the second WUS 1016B in the third DRX cycle 1004C to determine that the WUS skip value is 2. Subsequently, the wireless device may determine that the wireless device may not monitor two WUS monitoring opportunities (such as the skipped WUS 1024B and 1024C). The wireless device may also not monitor the two skipped PDCCHs 1022B and 1022C associated with the skipped WUS 1024B and 1024C, respectively. Similarly, if the WUS skip value is 3, the wireless device may skip monitoring for three skipped WUS monitoring opportunities and monitor for three additional PDCCH monitoring opportunities in addition to monitoring in the next PDCCH monitoring opportunity. In some cases, additional bits may be added to allow for the specification of any number of WUS skip values. In some cases, due to scheduling constraints, the number of WUS skip values ​​may be limited, such as to three WUS monitoring opportunities.

[0111] In some cases, the WUS may include an indication of which WUS skip mode of operation to use. For example, the WUS may include a bit indicating whether the wireless device can operate in a first WUS skip mode or a second WUS skip mode of operation. In some cases, the WUS skip mode of operation may be signaled to the wireless device using signaling different from the WUS. For example, the WUS skip mode may be indicated in a configuration message or dedicated signaling, such as a MAC CE or broadcast signaling for a UE associated with one or more wireless nodes.

[0112] In some cases, a specific behavior can be mapped to the value of the WUS skip value. For example, the WUS skip value can be mapped to one or more patterns for skipping WUS monitoring opportunities, such as skipping every other monitoring opportunity until a change occurs. For another example, a default WUS skip value can be predefined (such as predefined in a specification) and applied when no skip value is provided, or can always be applied.

[0113] In some cases, the enhanced WUS may also be applied in RRC idle mode and RRC inactive mode. For example, in RRC inactive / idle mode, the wireless node may indicate a paging interval (e.g., a DRX cycle for paging) to the wireless device. In addition, the wireless device may be configured with a WUS monitoring opportunity before the paging interval. The wireless node may transmit the enhanced WUS and employ a similar method to the above combined Figures 8 to 10 The method described above indicates whether the wireless device can skip one or more subsequent WUS monitoring opportunities. Similarly, the enhanced WUS can be used in a manner similar to the above combined Figure 10 The described manner indicates whether the wireless device may skip one or more subsequent paging intervals.

[0114] Figure 11A and Figure 11B Techniques for power conservation in wireless devices according to aspects of the present disclosure are shown. Figure 11A, an exemplary wireless device behavior 1100 is described. At step 1102, a radio resource control (RRC) connection may be established with a wireless system. At step 1104, an RRC connected mode may be entered based on the established RRC connection. For example, the wireless device may establish an RRC connection with a wireless node, and the wireless device may enter RRC connected mode. In some cases, steps 1102 and 1104 may be optional. For example, the wireless device may be in RRC idle mode. As another example, the wireless device may have established an RRC connection with the wireless system but be in RRC inactive mode. At step 1106, configuration information indicating a discontinuous reception (DRX) cycle time, a DRX on period, and an offset time may be received from the wireless node. For example, the wireless device may receive a configuration message including information defining the DRX cycle and WUS timing information. At step 1108, a WUS monitoring opportunity may be determined for the DRX cycle based on the offset time and the DRX on period. For example, the WUS monitoring opportunity may be determined based on the offset time of the DRX on duration. At step 1110, during a first DRX cycle, the wireless device may monitor for a WUS during a WUS monitoring opportunity associated with the first DRX cycle. For example, the wireless device may monitor for a WUS during the first WUS monitoring opportunity. At step 1112, the wireless device may receive a WUS from the wireless system during the WUS monitoring opportunity. For example, the wireless device may receive a DCI message indicating that the wireless device should monitor the PDCCH during the next PDCCH monitoring opportunity. At step 1114, the wireless device may determine that the WUS indicates that the wireless device skips one or more subsequent WUS monitoring opportunities. For example, the WUS may include an encoded WUS skip value indicating that the wireless device may skip one or more WUS monitoring opportunities. At step 1116, the wireless device may skip monitoring for the WUS based on the indicated skipping of the one or more subsequent WUS monitoring opportunities.

[0115] Figure 11BOptional behaviors in exemplary wireless device behavior 1100 are described. At step 1120, the WUS may instruct the wireless device to skip one or more WUS monitoring opportunities and PDCCH monitoring instances associated with the one or more WUS monitoring opportunities. For example, in a second WUS skip operation mode, the wireless device may skip one or more WUS monitoring opportunities. The wireless device may also skip one or more PDCCH monitoring opportunities associated with the skipped one or more WUS monitoring opportunities. At step 1122, the WUS may instruct the wireless device to skip one or more WUS monitoring opportunities associated with the one or more WUS monitoring opportunities. For example, in a first WUS skip operation mode, the wireless device may skip one or more WUS monitoring opportunities. In some cases, for the first WUS skip operation mode or the second WUS skip operation mode, the WUS may include an encoded value indicating the number of WUS monitoring opportunities to be skipped. In some cases, the WUS may include an indication of whether to skip monitoring of PDCCH instances associated with the WUS monitoring opportunities.

[0116] Figure 12A and Figure 12B Techniques for power conservation by wireless nodes according to aspects of the present disclosure are shown. Figure 12A , exemplary wireless node behavior 1200 is described. At step 1202, a radio resource control (RRC) connection may be established with a wireless device. For example, the wireless device may establish an RRC connection with the wireless node, and the wireless device may enter RRC connected mode. At step 1204, configuration information indicating a discontinuous reception (DRX) cycle time, a DRX on period, and an offset time may be transmitted to the wireless node. For example, the wireless node may determine a DRX cycle and WUS timing information for the wireless device. At step 1206, a wake-up signal (WUS) monitoring opportunity for the DRX cycle, a WUS based on the offset time, and a DRX on period may be transmitted to the wireless device. For example, the wireless node may transmit a configuration message indicating the determined DRX cycle and WUS timing information to the wireless device. At step 1208, it may be determined that the wireless device may skip monitoring one or more subsequent WUS monitoring opportunities. For example, the wireless node may determine that the wireless node has data to transmit to the wireless device in two or more PDCCH messages. The wireless node may determine the number of PDCCH messages to use, for example, based on the amount of data to be transmitted. The number of subsequent WUS monitoring opportunities that can be skipped can be based on the number of PDCCH messages. For another example, the wireless node can determine not to transmit a certain number of PDCCH messages to the wireless device. The number of subsequent WUS monitoring opportunities that can be skipped can be based on the number of PDCCH messages determined not to be transmitted.

[0117] At step 1210, during a first DRX cycle, a WUS may be transmitted to the wireless device during a WUS monitoring opportunity associated with the first DRX cycle, the WUS indicating that the wireless device may skip one or more subsequent WUS monitoring opportunities. For example, the WUS may be transmitted as a DCI message. In some cases, the WUS may also indicate whether to skip monitoring a PDCCH instance associated with the WUS monitoring opportunity. In some cases, the WUS includes an encoded value that indicates the WUS monitoring opportunity and the number of PDCCH monitoring instances associated with the plurality of WUS monitoring opportunities based on a pattern. At step 1212, transmission of the WUS to the wireless device may be skipped during one or more subsequent WUS monitoring opportunities.

[0118] Figure 12B Optional behaviors in example wireless node behavior 1200 are described. At step 1220, the wireless node may determine that the wireless node has data to transmit to the wireless device in two or more PDCCH messages. For example, the wireless node may have data for the wireless device that requires multiple PDCCH messages to transmit. The wireless node may, for example, in a first WUS skipping operation mode, instruct the wireless device to skip one or more WUS monitoring opportunities while still monitoring multiple PDCCH monitoring opportunities. At step 1222, the wireless node determines to transmit a certain number of PDCCH messages. At step 1224, the wireless node may determine not to transmit a certain number of PDCCH messages to the wireless device. For example, the wireless node may determine that the wireless device may skip one or more subsequent WUS monitoring opportunities and PDCCH monitoring opportunities associated with the one or more skipped WUS monitoring opportunities.

[0119] Notice, Figure 11B and Figure 12B The dashed lines and dashed arrows around the boxes in indicate optional steps that you can perform.

[0120] Example

[0121] In the following sections, additional exemplary aspects are provided.

[0122] According to embodiment 1, a method for power saving of a wireless device includes: establishing a radio resource control (RRC) connection with a wireless system; entering an RRC connected mode based on the established RRC connection; receiving configuration information from the wireless system, the configuration information indicating a discontinuous reception (DRX) cycle time, a DRX on period, and an offset time; determining an enhanced wake-up signal (EWUS) monitoring opportunity for the DRX cycle based on the offset time and the DRX on period; during a first DRX cycle, monitoring for EWUS during an EWUS monitoring opportunity associated with the first DRX cycle; receiving an EWUS from the wireless system during the EWUS monitoring opportunity; determining that the EWUS indicates that the wireless device skips one or more subsequent EWUS monitoring opportunities; and skipping monitoring for the EWUS based on the indicated skipped one or more subsequent EWUS monitoring opportunities.

[0123] Embodiment 2 includes the subject matter of embodiment 1 and further includes: determining that the EWUS indicates that the wireless device monitors a physical downlink control channel (PDCCH) instance in the next DRX cycle, wherein the PDCCH instance is associated with an EWUS monitoring opportunity; and monitoring the PDCCH instance in the next DRX cycle based on the EWUS.

[0124] Embodiment 3 includes the subject matter of embodiment 2 and further includes skipping monitoring a PDCCH instance associated with a next EWUS monitoring opportunity.

[0125] Embodiment 4 includes the subject matter of embodiment 1, wherein the EWUS instructs the wireless device to skip a plurality of EWUS monitoring opportunities and PDCCH monitoring instances associated with the plurality of EWUS monitoring opportunities, and wherein skipping monitoring comprises skipping monitoring for EWUS in a plurality of DRX cycles based on the EWUS.

[0126] Embodiment 5 includes the subject matter of embodiment 4, wherein the EWUS includes an encoded value indicating a number of EWUS monitoring opportunities to skip.

[0127] Embodiment 6 includes the subject matter of embodiment 5, wherein the encoded value is encoded in two bits of a downlink control message.

[0128] Embodiment 7 includes the subject matter of embodiment 1, wherein the EWUS instructs the wireless device to skip a plurality of EWUS monitoring opportunities, and wherein skipping monitoring comprises skipping monitoring for the EWUS in a plurality of DRX cycles based on the EWUS.

[0129] Embodiment 8 includes the subject matter of embodiment 7 and further includes: determining that an EWUS indicates that the wireless device monitors a physical downlink control channel (PDCCH) instance in multiple DRX cycles; and monitoring the PDCCH instance in multiple DRX cycles based on the indication based on the EWUS.

[0130] Embodiment 9 includes the subject matter of embodiment 7, wherein the EWUS includes an encoded value indicating a number of EWUS monitoring opportunities to skip.

[0131] Embodiment 10 includes the subject matter of embodiment 1, wherein the EWUS indicates whether to skip monitoring of a PDCCH instance associated with an EWUS monitoring opportunity.

[0132] Embodiment 11 includes the subject matter of embodiment 1, wherein the EWUS is transmitted in a downlink control message.

[0133] Embodiment 12 includes the subject matter of embodiment 1, wherein the EWUS is associated with a predetermined default number of EWUS monitoring opportunities to be skipped.

[0134] According to embodiment 13, a method for power saving of a wireless device includes: receiving configuration information from a wireless system, the configuration information indicating a discontinuous reception (DRX) cycle time, a DRX on time period, and an offset time; determining an enhanced wake-up signal (EWUS) monitoring opportunity for the DRX cycle based on the offset time and the DRX on time period; during a first DRX cycle, monitoring for EWUS during an EWUS monitoring opportunity associated with the first DRX cycle; receiving an EWUS from the wireless system during the EWUS monitoring opportunity; determining that the EWUS indicates that the wireless device skips one or more subsequent EWUS monitoring opportunities; and skipping monitoring for the EWUS based on the indicated skipped one or more subsequent EWUS monitoring opportunities.

[0135] Embodiment 14 includes the subject matter of embodiment 13, wherein the wireless device is in RRC idle mode.

[0136] Embodiment 15 includes the subject matter of embodiment 13, wherein the wireless device is in RRC inactive mode.

[0137] According to embodiment 16, a wireless device includes: an antenna; a radio component, the radio component being operably coupled to the antenna; and a processor, the processor being operably coupled to the radio component; wherein the wireless device is configured to: establish a radio resource control (RRC) connection with a wireless system; enter an RRC connected mode based on the established RRC connection; receive configuration information from the wireless system, the configuration information indicating a discontinuous reception (DRX) cycle time, a DRX on period, and an offset time; determine an enhanced wakeup signal (EWUS) monitoring opportunity for the DRX cycle based on the offset time and the DRX on period; during a first DRX cycle, monitor for EWUS during an EWUS monitoring opportunity associated with the first DRX cycle; receive an EWUS from the wireless system during the EWUS monitoring opportunity; determine that the EWUS indicates that the wireless device skips one or more subsequent EWUS monitoring opportunities; and skip monitoring for the EWUS based on the indicated skipped one or more subsequent EWUS monitoring opportunities.

[0138] Embodiment 17 includes the subject matter of embodiment 16, wherein the wireless device is further configured to: determine that the EWUS indicates that the wireless device monitors a physical downlink control channel (PDCCH) instance in a next DRX cycle, wherein the PDCCH instance is associated with an EWUS monitoring opportunity; and monitor the PDCCH instance in the next DRX cycle based on the EWUS.

[0139] Embodiment 18 includes the subject matter of embodiment 17, wherein the wireless device is further configured to skip monitoring a PDCCH instance associated with a next EWUS monitoring opportunity.

[0140] Embodiment 19 includes the subject matter of embodiment 16, wherein the EWUS instructs the wireless device to skip a plurality of EWUS monitoring opportunities and PDCCH monitoring instances associated with the plurality of EWUS monitoring opportunities, and wherein the wireless device is further configured to skip monitoring for EWUS in a plurality of DRX cycles based on the EWUS to skip monitoring.

[0141] Embodiment 20 includes the subject matter of embodiment 16, wherein the EWUS includes an encoded value indicating a number of EWUS monitoring opportunities to skip.

[0142] Embodiment 21 includes the subject matter of embodiment 20, wherein the encoded value is encoded in two bits of a downlink control message.

[0143] Embodiment 22 includes the subject matter of embodiment 16, wherein the EWUS instructs the wireless device to skip a plurality of EWUS monitoring opportunities, and wherein the wireless device is further configured to skip monitoring for EWUS in a plurality of DRX cycles based on the EWUS to skip monitoring.

[0144] Embodiment 23 includes the subject matter of embodiment 22, wherein the wireless device is further configured to: determine that an EWUS indicates that the wireless device monitors a plurality of physical downlink control channel (PDCCH) instances in a plurality of DRX cycles; and monitor the PDCCH instances in the plurality of DRX cycles based on the indication based on the EWUS.

[0145] Embodiment 24 includes the subject matter of embodiment 22, wherein the EWUS includes an encoded value indicating a number of EWUS monitoring opportunities to skip.

[0146] Embodiment 25 includes the subject matter of embodiment 16, wherein the EWUS indicates whether to skip monitoring of a PDCCH instance associated with an EWUS monitoring opportunity.

[0147] Embodiment 26 includes the subject matter of embodiment 16, wherein the EWUS is transmitted in a downlink control message.

[0148] Embodiment 27 includes the subject matter according to embodiment 16, wherein the EWUS is associated with a predetermined default number of EWUS monitoring opportunities to be skipped.

[0149] According to embodiment 28, a method for power saving of a wireless device includes: receiving configuration information from a wireless system, the configuration information indicating a discontinuous reception (DRX) cycle time, a DRX on time period, and an offset time; determining an enhanced wake-up signal (EWUS) monitoring opportunity for the DRX cycle based on the offset time and the DRX on time period; during a first DRX cycle, monitoring for EWUS during an EWUS monitoring opportunity associated with the first DRX cycle; receiving EWUS from the wireless system during the EWUS monitoring opportunity; determining that the EWUS indicates that the wireless device skips one or more subsequent EWUS monitoring opportunities; and skipping monitoring for EWUS based on the indicated skipped one or more subsequent EWUS monitoring opportunities.

[0150] Embodiment 29 includes the subject matter of embodiment 28, wherein the wireless device is in RRC idle mode.

[0151] Embodiment 30 includes the subject matter of embodiment 28, wherein the wireless device is in RRC inactive mode.

[0152] According to embodiment 31, a method for power saving includes: establishing a radio resource control (RRC) connection with a wireless device; transmitting configuration information to the wireless device, the configuration information indicating a discontinuous reception (DRX) cycle time, a DRX on time period, and an offset time; transmitting an enhanced wake-up signal (EWUS) monitoring opportunity for the DRX cycle, the EWUS monitoring opportunity being based on the offset time and the DRX on time period; determining that the wireless device can skip monitoring one or more subsequent EWUS monitoring opportunities; during a first DRX cycle, transmitting an EWUS for the wireless device during an EWUS monitoring opportunity associated with the first DRX cycle, the EWUS indicating that the wireless device can skip the one or more subsequent EWUS monitoring opportunities; and skipping transmitting the EWUS to the wireless device during the one or more subsequent EWUS monitoring opportunities.

[0153] Embodiment 32 includes the subject matter of embodiment 31, wherein the EWUS instructs the wireless device to monitor a physical downlink control channel (PDCCH) instance in a next DRX cycle, wherein the PDCCH instance is associated with an EWUS monitoring opportunity.

[0154] Embodiment 33 includes the subject matter of embodiment 31, and further includes: determining to transmit data to the wireless device in two or more physical downlink control channel (PDCCH) messages; and determining the number of PDCCH messages to be transmitted, and wherein one or more subsequent EWUS monitoring opportunities are determined based on the number of PDCCH messages to be transmitted.

[0155] Embodiment 34 includes the subject matter of embodiment 33, wherein the EWUS includes an encoded value indicating a number of EWUS monitoring opportunities to skip.

[0156] Embodiment 35 includes the subject matter of embodiment 31, wherein skipping transmitting the EWUS comprises skipping transmitting the EWUS in a next EWUS monitoring opportunity, and further comprises skipping transmitting a PDCCH message associated with the next EWUS monitoring opportunity.

[0157] Embodiment 36 includes the subject matter of embodiment 31, and further includes determining not to transmit a first number of physical downlink control channel (PDCCH) messages to the wireless device, wherein the first number is two or more, wherein the EWUS indicates the first number of skipped EWUS transmissions to the wireless device, and wherein skipping transmitting the EWUS includes skipping transmitting PDCCH messages associated with the skipped EWUS transmissions.

[0158] Embodiment 37 includes the subject matter of embodiment 31, wherein the EWUS includes an encoded value indicating an EWUS monitoring opportunity to be skipped and a number of PDCCH monitoring instances associated with the plurality of EWUS monitoring opportunities.

[0159] Embodiment 38 includes the subject matter of embodiment 31, wherein the EWUS is transmitted in a downlink control message.

[0160] Embodiment 39 includes the subject matter of embodiment 31, wherein the EWUS indicates whether to skip monitoring of a PDCCH instance associated with an EWUS monitoring opportunity.

[0161] Embodiment 40 includes the subject matter of embodiment 31, wherein the EWUS is associated with a predetermined default number of EWUS monitoring opportunities to be skipped.

[0162] According to embodiment 41, a device comprises: an antenna; a radio component, the radio component being operably coupled to the antenna; and a processor, the processor being operably coupled to the radio component; wherein the device is configured to: establish a radio resource control (RRC) connection with a wireless device; transmit configuration information to the wireless device, the configuration information indicating a discontinuous reception (DRX) cycle time, a DRX on time period, and an offset time; transmit an enhanced wake-up signal (EWUS) monitoring opportunity for the DRX cycle, the EWUS monitoring opportunity being based on the offset time and the DRX on time period; determine that the wireless device can skip monitoring one or more subsequent EWUS monitoring opportunities; during a first DRX cycle, transmit an EWUS for the wireless device during an EWUS monitoring opportunity associated with the first DRX cycle, the EWUS indicating that the wireless device can skip the one or more subsequent EWUS monitoring opportunities; and skip transmitting the EWUS to the wireless device during one or more subsequent EWUS monitoring opportunities.

[0163] Embodiment 42 includes the subject matter of embodiment 41, wherein the EWUS instructs the wireless device to monitor a physical downlink control channel (PDCCH) instance in a next DRX cycle, wherein the PDCCH instance is associated with an EWUS monitoring opportunity.

[0164] Embodiment 43 includes the subject matter of embodiment 41, wherein the device is further configured to: determine to transmit data to the wireless device in two or more physical downlink control channel (PDCCH) messages; and determine the number of PDCCH messages to be transmitted, and wherein one or more subsequent EWUS monitoring opportunities are determined based on the number of PDCCH messages to be transmitted.

[0165] Embodiment 44 includes the subject matter of embodiment 43, wherein the EWUS includes an encoded value indicating a number of EWUS monitoring opportunities to skip.

[0166] Embodiment 45 includes the subject matter of embodiment 41, wherein the device is configured to skip transmitting an EWUS by skipping transmitting an EWUS in a next EWUS monitoring opportunity; and wherein the device is further configured to skip transmitting a PDCCH message associated with the next EWUS monitoring opportunity.

[0167] Embodiment 46 includes the subject matter of embodiment 41, wherein the device is further configured to determine not to transmit a first number of physical downlink control channel (PDCCH) messages to the wireless device, wherein the first number is two or more, wherein the EWUS indicates the first number of skipped EWUS transmissions to the wireless device, and wherein skipping transmitting the EWUS includes skipping transmitting PDCCH messages associated with the skipped EWUS transmissions.

[0168] Embodiment 47 includes the subject matter of embodiment 41, wherein the EWUS includes an encoded value indicating an EWUS monitoring opportunity to be skipped and a number of PDCCH monitoring instances associated with the plurality of EWUS monitoring opportunities.

[0169] Embodiment 48 includes the subject matter of embodiment 41, wherein the EWUS is transmitted in a downlink control message.

[0170] Embodiment 49 includes the subject matter of embodiment 41, wherein the EWUS indicates whether to skip monitoring of a PDCCH instance associated with an EWUS monitoring opportunity.

[0171] Embodiment 50 includes the subject matter of embodiment 41, wherein the EWUS is associated with a predetermined default number of EWUS monitoring opportunities to be skipped.

[0172] According to embodiment 51, a non-transitory computer-readable medium comprising computer-readable code, which is capable of being executed by a processor to: establish a radio resource control (RRC) connection with a wireless device; transmit configuration information to the wireless device, the configuration information indicating a discontinuous reception (DRX) cycle time, a DRX on time period and an offset time; transmit an enhanced wake-up signal (EWUS) monitoring opportunity for the DRX cycle, the EWUS monitoring opportunity being based on the offset time and the DRX on time period; determine that the wireless device can skip monitoring one or more subsequent EWUS monitoring opportunities; during a first DRX cycle, transmit an EWUS for the wireless device during an EWUS monitoring opportunity associated with the first DRX cycle, the EWUS indicating that the wireless device can skip one or more subsequent EWUS monitoring opportunities; and skip transmitting the EWUS to the wireless device during the one or more subsequent EWUS monitoring opportunities.

[0173] Embodiment 52 includes the subject matter of embodiment 51, wherein the EWUS instructs the wireless device to monitor a physical downlink control channel (PDCCH) instance in a next DRX cycle, wherein the PDCCH instance is associated with an EWUS monitoring opportunity.

[0174] Embodiment 53 includes the subject matter of embodiment 51, wherein the device is further configured to: determine to transmit data to the wireless device in two or more physical downlink control channel (PDCCH) messages; and determine the number of PDCCH messages to be transmitted, and wherein one or more subsequent EWUS monitoring opportunities are determined based on the number of PDCCH messages to be transmitted.

[0175] Embodiment 54 includes the subject matter of embodiment 53, wherein the EWUS includes an encoded value indicating a number of EWUS monitoring opportunities to skip.

[0176] Embodiment 55 includes the subject matter of embodiment 51, wherein the device is configured to skip transmitting an EWUS by skipping transmitting an EWUS in a next EWUS monitoring opportunity; and wherein the device is further configured to skip transmitting a PDCCH message associated with the next EWUS monitoring opportunity.

[0177] Embodiment 56 includes the subject matter of embodiment 51, wherein the device is further configured to determine not to transmit a first number of physical downlink control channel (PDCCH) messages to the wireless device, wherein the first number is two or more, wherein the EWUS indicates the first number of skipped EWUS transmissions to the wireless device, and wherein skipping transmitting the EWUS includes skipping transmitting PDCCH messages associated with the skipped EWUS transmissions.

[0178] Embodiment 57 includes the subject matter of embodiment 51, wherein the EWUS includes an encoded value indicating an EWUS monitoring opportunity to be skipped and a number of PDCCH monitoring instances associated with the plurality of EWUS monitoring opportunities.

[0179] Embodiment 58 includes the subject matter of embodiment 51, wherein the EWUS is transmitted in a downlink control message.

[0180] Embodiment 59 includes the subject matter of embodiment 51, wherein the EWUS indicates whether to skip monitoring of a PDCCH instance associated with an EWUS monitoring opportunity.

[0181] Embodiment 60 includes the subject matter of embodiment 51, wherein the EWUS is associated with a predetermined default number of EWUS monitoring opportunities to be skipped.

[0182] According to a method of embodiment 61, the method comprises any action or combination of actions as substantially described herein in the detailed description.

[0183] According to a method as described in Example 62, the method is substantially described herein with reference to each or any combination of the figures included herein or with reference to each or any combination of the paragraphs in the detailed description.

[0184] According to embodiment 63, a wireless device is configured to perform any action or combination of actions as substantially described herein in a specific embodiment included in the wireless device.

[0185] According to embodiment 64, a wireless station is configured to perform any action or combination of actions as substantially described herein in the detailed description as included in the wireless station.

[0186] According to embodiment 65, a non-transitory computer readable medium stores instructions that, when executed, cause performance of any action or combination of actions as substantially described herein in the detailed description.

[0187] According to embodiment 66, an integrated circuit is configured to perform any action or combination of actions as substantially described herein in the detailed description.

[0188] Yet another exemplary aspect may include a method comprising: performing, by a device, any or all of the foregoing embodiments.

[0189] Yet another exemplary aspect may include a non-transitory computer-accessible storage medium including program instructions that, when executed at a device, cause the device to implement any or all portions of any of the aforementioned embodiments.

[0190] Yet another exemplary aspect may include a computer program comprising instructions for performing any or all of any of the aforementioned embodiments.

[0191] Yet another exemplary aspect may include an apparatus comprising means for performing any or all of the elements of any of the aforementioned embodiments.

[0192] Yet another exemplary aspect may include an apparatus comprising a processor configured to cause the device to perform any or all elements of any of the aforementioned embodiments.

[0193] It is understood that the use of personally identifiable information should be subject to privacy policies and practices that are generally recognized to meet or exceed industry or government requirements for maintaining user privacy. Specifically, personally identifiable information data should be managed and processed to minimize the risk of unintentional or unauthorized access or use, and the nature of authorized use should be clearly stated to users.

[0194] Aspects of the present disclosure can be implemented in any of a variety of forms. For example, some aspects can be implemented as computer-implemented methods, computer-readable storage media, or computer systems. Other aspects can be implemented using one or more custom-designed hardware devices such as ASICs. Other aspects can be implemented using one or more programmable hardware elements such as FPGAs.

[0195] In some aspects, a non-transitory computer-readable storage medium may be configured such that it stores program instructions and / or data, wherein the program instructions, if executed by a computer system, cause the computer system to perform a method, such as any one of the method aspects described herein, or any combination of the method aspects described herein, or any subset of any method aspects described herein, or any combination of such subsets.

[0196] In some aspects, a device (e.g., UE 106, BS 102, network element 600) may be configured to include a processor (or a group of processors) and a memory medium, wherein the memory medium stores program instructions, wherein the processor is configured to read and execute the program instructions from the memory medium, wherein the program instructions are executable to implement any of the various method aspects described herein (or any combination of the method aspects described herein, or any subset of any method aspects, or any combination of such subsets). The device may be implemented in any of various forms.

[0197] Although the above aspects have been described in considerable detail, numerous variations and modifications will become apparent to those skilled in the art once the above disclosure is fully appreciated. It is intended that the following claims be interpreted to encompass all such variations and modifications.

Claims

1. A method for power conservation in a wireless device, comprising: For a radio resource control (RRC) connection with a wireless system, entering an RRC connected mode; receiving configuration information from a wireless system, the configuration information indicating a discontinuous reception (DRX) cycle time, a DRX on period, and an offset time; Determine an enhanced wake-up signal EWUS monitoring opportunity for the DRX cycle based on the offset time and the DRX on period; receiving an EWUS from the wireless system during an EWUS monitoring opportunity associated with a first DRX cycle; determining that an EWUS instructs the wireless device to skip one or more subsequent EWUS monitoring opportunities within one or more DRX cycles following the first DRX cycle, wherein the EWUS further indicates whether to skip monitoring of a Physical Downlink Control Channel (PDCCH) instance associated with the one or more subsequent EWUS monitoring opportunities; as well as Monitoring for the EWUS is skipped based on the indicated skipping of one or more subsequent EWUS monitoring opportunities.

2. The method according to claim 1, further comprising: determining that an EWUS instructs the wireless device to monitor a PDCCH instance in a next DRX cycle, wherein the PDCCH instance is associated with an EWUS monitoring opportunity; as well as The PDCCH instance in the next DRX cycle is monitored based on the EWUS. 3 . The method of claim 2 , further comprising skipping monitoring a PDCCH instance associated with a next EWUS monitoring opportunity.

4. The method of claim 1 , wherein the EWUS instructs the wireless device to skip a plurality of EWUS monitoring opportunities and PDCCH monitoring instances associated with the plurality of EWUS monitoring opportunities, and wherein skipping monitoring comprises skipping monitoring for the EWUS in a plurality of DRX cycles based on the EWUS. The method of claim 4 , wherein the EWUS includes an encoded value indicating a number of EWUS monitoring opportunities to be skipped. The method of claim 5 , wherein the encoded value is encoded in two bits of a downlink control message. 7 . The method of claim 1 , wherein the EWUS instructs the wireless device to skip a plurality of EWUS monitoring opportunities, and wherein skipping monitoring comprises skipping monitoring for the EWUS in a plurality of DRX cycles based on the EWUS.

8. The method according to claim 7, further comprising: determining that an EWUS instructs the wireless device to monitor Physical Downlink Control Channel (PDCCH) instances in the plurality of DRX cycles; as well as The PDCCH instances in the plurality of DRX cycles are monitored according to the indication based on the EWUS.

9. The method of claim 7, wherein the EWUS includes an encoded value indicating a number of EWUS monitoring opportunities to skip.

10. The method of claim 1, wherein the EWUS is transmitted in a downlink control message. The method of claim 1 , wherein the EWUS is associated with a predetermined default number of EWUS monitoring opportunities to be skipped.

12. A method for power conservation in a wireless device, comprising: receiving configuration information from a wireless system, the configuration information indicating a discontinuous reception (DRX) cycle time, a DRX on period, and an offset time; Determine an enhanced wake-up signal EWUS monitoring opportunity for the DRX cycle based on the offset time and the DRX on period; receiving an EWUS from the wireless system during an EWUS monitoring opportunity associated with a first DRX cycle; determining that an EWUS instructs the wireless device to skip one or more subsequent EWUS monitoring opportunities within one or more DRX cycles following the first DRX cycle, wherein the EWUS further indicates whether to skip monitoring of a Physical Downlink Control Channel (PDCCH) instance associated with the one or more subsequent EWUS monitoring opportunities; as well as Monitoring for the EWUS is skipped based on the indicated skipping of one or more subsequent EWUS monitoring opportunities.

13. The method of claim 12, wherein the wireless device is in RRC idle mode.

14. The method of claim 12, wherein the wireless device is in RRC inactive mode.

15. A wireless device, comprising: antenna; a radio operatively coupled to the antenna; as well as a processor operatively coupled to the radio; The wireless device is configured to: For a radio resource control (RRC) connection with a wireless system, entering an RRC connected mode; receiving configuration information from a wireless system, the configuration information indicating a discontinuous reception (DRX) cycle time, a DRX on period, and an offset time; Determine an enhanced wake-up signal EWUS monitoring opportunity for the DRX cycle based on the offset time and the DRX on period; receiving an EWUS from the wireless system during an EWUS monitoring opportunity associated with a first DRX cycle; determining that an EWUS instructs the wireless device to skip one or more subsequent EWUS monitoring opportunities within one or more DRX cycles following the first DRX cycle, wherein the EWUS further indicates whether to skip monitoring of a Physical Downlink Control Channel (PDCCH) instance associated with the one or more subsequent EWUS monitoring opportunities; as well as Monitoring for the EWUS is skipped based on the indicated skipping of one or more subsequent EWUS monitoring opportunities.

16. The wireless device of claim 15, wherein the wireless device is further configured to: determining that an EWUS indicates that the wireless device monitors a Physical Downlink Control Channel (PDCCH) instance in a next DRX cycle, wherein the PDCCH instance is associated with an EWUS monitoring opportunity; and The PDCCH instance in the next DRX cycle is monitored based on the EWUS. 17 . The wireless device of claim 16 , wherein the wireless device is further configured to skip monitoring a PDCCH instance associated with a next EWUS monitoring opportunity.

18. The wireless device of claim 15 , wherein an EWUS instructs the wireless device to skip a plurality of EWUS monitoring opportunities and PDCCH monitoring instances associated with the plurality of EWUS monitoring opportunities, and wherein the wireless device is further configured to skip monitoring by skipping monitoring for EWUS in a plurality of DRX cycles based on the EWUS.

19. The wireless device of claim 15, wherein the EWUS includes an encoded value indicating a number of EWUS monitoring opportunities to skip.

20. The wireless device of claim 19, wherein the encoded value is encoded in two bits of a downlink control message.

21. The wireless device of claim 15, wherein an EWUS instructs the wireless device to skip a plurality of EWUS monitoring opportunities, and wherein the wireless device is further configured to skip monitoring by skipping monitoring for EWUS in a plurality of DRX cycles based on the EWUS.

22. The wireless device of claim 21 , wherein the wireless device is further configured to: determining that an EWUS instructs the wireless device to monitor Physical Downlink Control Channel (PDCCH) instances in the plurality of DRX cycles; and The PDCCH instances in the plurality of DRX cycles are monitored according to the indication based on the EWUS.

23. The wireless device of claim 21, wherein the EWUS includes an encoded value indicating a number of EWUS monitoring opportunities to skip.

24. The wireless device of claim 15, wherein the EWUS is transmitted in a downlink control message.

25. The wireless device of claim 15, wherein the EWUS is associated with a predetermined default number of EWUS monitoring opportunities to be skipped.

26. A wireless device, comprising: antenna; a radio operatively coupled to the antenna; as well as a processor operatively coupled to the radio; The wireless device is configured to: receiving configuration information from a wireless system, the configuration information indicating a discontinuous reception (DRX) cycle time, a DRX on period, and an offset time; Determine an enhanced wake-up signal EWUS monitoring opportunity for the DRX cycle based on the offset time and the DRX on period; receiving an EWUS from the wireless system during an EWUS monitoring opportunity associated with a first DRX cycle; determining that an EWUS instructs the wireless device to skip one or more subsequent EWUS monitoring opportunities within one or more DRX cycles following the first DRX cycle, wherein the EWUS further indicates whether to skip monitoring of a Physical Downlink Control Channel (PDCCH) instance associated with the one or more subsequent EWUS monitoring opportunities; as well as Monitoring for the EWUS is skipped based on the indicated skipping of one or more subsequent EWUS monitoring opportunities.

27. The wireless device of claim 26, wherein the wireless device is in RRC idle mode.

28. The wireless device of claim 26, wherein the wireless device is in RRC inactive mode.

29. A non-transitory computer-readable medium storing instructions that, when executed by a processor of a wireless device, cause the processor to perform the method of any one of claims 1 to 14.

30. An integrated circuit comprising circuitry configured to perform the method of any one of claims 1 to 14.

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