Beam scanning during the on period of the DRX cycle

Abstract

Techniques for periodically sending a first signal set (e.g., a reference signal) during an on period of a discontinuous reception (DRX) cycle, but not during an off period of the DRX cycle, are described herein. Such techniques may enable a user equipment (UE) operating in a DRX mode to save additional power during the DRX cycle. A periodicity for sending the first signal set during the on period may be determined. The periodicity may indicate one DRX cycle out of every N DRX cycles during which the first signal set will be sent during the on period. During other DRX cycles, the first signal set may be sent during the off period. When the first signal set is sent during the on period, the UE may avoid activating certain components during the off period, thereby saving power.

Description

[0001] Cross-references

[0002] This patent application claims priority to U.S. Patent Application No. 16 / 387,853, filed on April 18, 2019, by Islam et al., entitled “Beam Sweeping Duringan On-Period of a DRX Cycle,” which claims priority to U.S. Provisional Patent Application No. 62 / 693,233, filed on July 2, 2018, by Islam et al., entitled “Beam Sweeping During an On-Period of a DRX Cycle,” each of which is assigned to the present assignee and each of which is incorporated herein by reference in its entirety. Technical Field

[0003] The following relates generally to wireless communications, and more particularly to beam scanning during an on period of a discontinuous reception (DRX) cycle. Background Art

[0004] Wireless communication systems are widely deployed to provide various types of communication content, such as voice, video, packet data, messaging, broadcasting, etc. These systems may be able to support communication with multiple users by sharing available system resources (e.g., time, frequency, and power). Examples of such multiple access systems include fourth generation (4G) systems, such as long term evolution (LTE) systems, advanced LTE (LTE-A) systems, or LTE-A Pro systems, and fifth generation (5G) systems, which may be referred to as new radio (NR) systems. These systems may employ techniques such as code division multiple access (CDMA), time division multiple access (TDMA), frequency division multiple access (FDMA), orthogonal frequency division multiple access (OFDMA), or discrete Fourier transform spread orthogonal frequency division multiplexing (DFT-S-OFDM). A wireless multiple access communication system may include multiple base stations or network access nodes, each of which simultaneously supports communication with multiple communication devices, which may be referred to as user equipment (UE).

[0005] In some wireless communication systems, the UE may enter DRX mode to save power. A beam management procedure may be performed when the UE operates in DRX mode to maintain a communication link. Summary of the invention

[0006] The described technology relates to improved methods, systems, devices and apparatuses for supporting beam scanning during an on period of a DRX cycle. In general, the described technology provides a technology for periodically sending a first signal set (e.g., a reference signal) during an on period of a discontinuous reception (DRX) cycle (rather than during an off period of the DRX cycle). Such technology can enable a user equipment (UE) operating in a DRX mode to save additional power during the DRX cycle. A periodicity for sending the first signal set during the on period can be determined. The periodicity can indicate one DRX cycle out of every N DRX cycles, during which the first signal set will be sent during the on period. During other DRX cycles, the first signal set can be sent during the off period. When the first signal set is sent during the on period, the UE can avoid activating certain components during the off period, thereby saving power.

[0007] A wireless communication method is described. The method may include: during a first on-period of a first DRX cycle associated with a UE operating in a DRX mode, sending a first set of signals to the UE using a first beam set; and during a second on-period of a second DRX cycle associated with the UE, sending a second set of wake-up signals to the UE using a second beam set, the second on-period being different from the first on-period.

[0008] An apparatus for wireless communication is described. The apparatus may include a processor, a memory in electronic communication with the processor, and instructions stored in the memory. The instructions may be executed by the processor to cause the apparatus to: during a first on-period of a first DRX cycle associated with a UE operating in a DRX mode, send a first signal set to the UE using a first beam set; and during a second on-period of a second DRX cycle associated with the UE, send a second wake-up signal set to the UE using a second beam set, the second on-period being different from the first on-period.

[0009] Another apparatus for wireless communication is described. The apparatus may include means for transmitting a first set of signals to a UE using a first beam set during a first on-period of a first DRX cycle associated with the UE operating in a DRX mode, and transmitting a second set of wake-up signals to the UE using a second beam set during a second on-period of a second DRX cycle associated with the UE, the second on-period being different from the first on-period.

[0010] A non-transitory computer-readable medium storing code for wireless communication is described. The code may include instructions executable by a processor to: during a first on-period of a first DRX cycle associated with a UE operating in a DRX mode, send a first set of signals to the UE using a first beam set; and during a second on-period of a second DRX cycle associated with the UE, send a second set of wake-up signals to the UE using a second beam set, the second on-period being different from the first on-period.

[0011] Some examples of the methods, apparatuses, and non-transitory computer-readable media described herein may also include operations, features, components, or instructions for receiving state information about the UE from the UE, wherein sending the first set of signals may be based on receiving the state information.

[0012] Some examples of the methods, apparatuses, and non-transitory computer-readable media described herein may also include operations, features, components, or instructions for identifying a periodicity of the first signal set and the second wake-up signal set based on the reception status information.

[0013] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, receiving the status information may also include operations, features, components, or instructions for receiving the battery status information from the UE.

[0014] In some examples of methods, apparatuses, and non-transitory computer-readable media described herein, the first signal set may be sent once in every N DRX on cycles. In some examples of methods, apparatuses, and non-transitory computer-readable media described herein, the second signal set is sent during the remaining non-N on cycles.

[0015] Some examples of the methods, apparatus, and non-transitory computer-readable media described herein may also include operations, features, components, or instructions for performing the following operations: randomizing an order of first beam sets sent across one or more cells during a first on period of a first DRX cycle, wherein sending the first signal set can be based on randomizing the order.

[0016] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, randomization of the first beam set can be based on a cell identifier, a UE identifier, or a UE group identifier, or a combination thereof.

[0017] Some examples of the methods, apparatus, and non-transitory computer-readable media described herein may also include operations, features, components, or instructions for performing the following operations: based on sending the first signal set during the first on period of the first DRX cycle, avoiding sending the first signal set during the off period of the first DRX cycle.

[0018] Some examples of the methods, apparatuses, and non-transitory computer-readable media described herein may also include operations, features, components, or instructions for performing the following operations: based at least in part on sending the second wake-up signal set during the second on period of the second DRX cycle, sending the first signal set once during every M DRX off periods. In some examples of the methods, apparatuses, and non-transitory computer-readable media described herein, the value of M is 1.

[0019] Some examples of the methods, apparatuses, and non-transitory computer-readable media described herein may also include operations, features, components, or instructions for avoiding sending the first set of signals during an OFF period adjacent to the first ON period.

[0020] Some examples of the methods, apparatus, and non-transitory computer-readable media described herein may also include operations, features, components, or instructions for performing the following operations: based on sending the first signal set during the first on period of the first DRX cycle, sending a second wake-up signal set during the first on period of the first DRX cycle.

[0021] Some examples of the methods, apparatus, and non-transitory computer-readable media described herein may also include operations, features, components, or instructions for performing the following operations: encoding wake-up information into at least one reference signal in a first signal set sent during a first on period of a first DRX cycle, wherein sending the first signal set during the first on period of the first DRX cycle may be based on encoding the wake-up information into at least one reference signal.

[0022] Some examples of the methods, apparatus, and non-transitory computer-readable media described herein may also include operations, features, components, or instructions for performing the following operations: identifying a first DRX cycle as a DRX cycle in which a first signal set can be sent during an on period of the DRX cycle, wherein sending the first signal set can be based on identifying the first DRX cycle.

[0023] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, a first set of signals is transmitted with a first gNB beam set and a second set of signals is transmitted with a second gNB beam set.

[0024] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, the second set of beams may be a subset of the first set of beams.

[0025] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, a number of beams in the first beam set can be different than a number of beams in the second beam set.

[0026] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, the first signal set includes a channel state information reference signal (CSI-RS), a primary synchronization signal (PSS), a secondary synchronization signal (SSR), a demodulation reference signal (DMRS) of a physical broadcast channel (PBCH), or a tracking reference signal or a combination thereof.

[0027] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, the first set of signals includes a set of reference signals.

[0028] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, the first set of signals includes a physical downlink control channel (PDCCH) having one or more CRC bits scrambled using a radio network temporary identifier (RNTI) associated with the UE.

[0029] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, the UE may be in a connected discontinuous reception (C-DRX) mode.

[0030] A wireless communication method is described. The method may include: receiving a first signal set by a UE using a first beam set during a first on-period of a first DRX cycle associated with a UE operating in a DRX mode; and receiving a second wake-up signal set by the UE using a second beam set during a second on-period of a second DRX cycle associated with the UE, the second on-period being different from the first on-period.

[0031] An apparatus for wireless communication is described. The apparatus may include a processor, a memory in electronic communication with the processor, and instructions stored in the memory. The instructions may be executed by the processor to cause the apparatus to: receive a first signal set by a UE using a first beam set during a first on-period of a first DRX cycle associated with a UE operating in a DRX mode; and receive a second wake-up signal set by the UE using a second beam set during a second on-period of a second DRX cycle associated with the UE, the second on-period being different from the first on-period.

[0032] Another apparatus for wireless communication is described. The apparatus may include means for receiving, by a UE operating in a DRX mode, a first set of signals using a first beam set during a first on-period of a first DRX cycle associated with the UE, and receiving, by the UE, a second set of wake-up signals using a second beam set during a second on-period of a second DRX cycle associated with the UE, the second on-period being different from the first on-period.

[0033] A non-transitory computer-readable medium storing code for wireless communication is described. The code may include instructions executable by a processor to: receive a first set of signals using a first beam set by a UE during a first on-period of a first DRX cycle associated with a UE operating in a DRX mode; and receive a second set of wake-up signals using a second beam set by the UE during a second on-period of a second DRX cycle associated with the UE, the second on-period being different from the first on-period.

[0034] Some examples of the methods, apparatuses, and non-transitory computer-readable media described herein may also include operations, features, components, or instructions for performing the following operations: receiving, by the UE, state information about the UE, wherein receiving the first signal set may be based on sending the state information.

[0035] Some examples of the methods, apparatuses, and non-transitory computer-readable media described herein may also include operations, features, components, or instructions for identifying a periodicity of the first signal set and the second wake-up signal set based on the transmission status information.

[0036] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, sending the status information may also include operations, features, components, or instructions for sending the battery status information to the base station.

[0037] In some examples of methods, apparatuses, and non-transitory computer-readable media described herein, the first signal set may be received once in every N DRX on cycles. In some examples of methods, apparatuses, and non-transitory computer-readable media described herein, the second signal set is received during the remaining non-N on cycles.

[0038] Some examples of methods, apparatus, and non-transitory computer-readable media described herein may also include operations, features, components, or instructions for performing the following operations: receiving the first signal set once during every M DRX off cycles based at least in part on receiving the second wake-up signal set during the second on cycle of the second DRX cycle. In some examples of methods, apparatus, and non-transitory computer-readable media described herein, the value of M is 1.

[0039] Some examples of the methods, apparatus, and non-transitory computer-readable media described herein may also include operations, features, components, or instructions for performing the following operations: based on receiving the first signal set during the on period of the first DRX cycle, receiving a second wake-up signal set during the on period of the first DRX cycle.

[0040] Some examples of the methods, apparatus, and non-transitory computer-readable media described herein may also include operations, features, components, or instructions for identifying wake-up information encoded into at least one reference signal in the first signal set transmitted during an on period of the first DRX cycle.

[0041] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, the second set of beams may be a subset of the first set of beams.

[0042] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, a number of beams in the first beam set can be different than a number of beams in the second beam set.

[0043] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, the first set of signals includes a set of reference signals.

[0044] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, the first set of signals includes a PDCCH having one or more CRC bits scrambled using a radio network temporary identifier (RNTI) associated with the UE.

[0045] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, the first signal set includes a channel state information reference signal (CSI-RS), a primary synchronization signal (PSS), a secondary synchronization signal (SSR), a demodulation reference signal (DMRS) of a physical broadcast channel (PBCH), or a tracking reference signal or a combination thereof.

[0046] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, the UE may be in a connected discontinuous reception (C-DRX) mode. BRIEF DESCRIPTION OF THE DRAWINGS

[0047] Figure 1 An example of a wireless communication system supporting beam scanning during an on period of a discontinuous reception (DRX) cycle in accordance with aspects of the present disclosure is shown.

[0048] Figure 2 An example of a wireless communication system supporting beam scanning during an on period of a DRX cycle in accordance with aspects of the present disclosure is shown.

[0049] Figure 3 An example of a DRX cycle supporting beam scanning during an on period of the DRX cycle in accordance with aspects of the present disclosure is shown.

[0050] Figure 4An example of a DRX procedure supporting beam scanning during an on period of a DRX cycle in accordance with aspects of the present disclosure is shown.

[0051] Figure 5 An example of a DRX cycle 300 is shown that supports beam scanning during an on period of the DRX cycle in accordance with aspects of the present disclosure.

[0052] Figure 6 An example of a process flow for supporting beam scanning during an on period of a DRX cycle in accordance with aspects of the present disclosure is shown.

[0053] Figure 7 and 8 A block diagram of a device supporting beam scanning during an on period of a DRX cycle in accordance with aspects of the present disclosure is shown.

[0054] Fig. 9 A block diagram of a communication manager supporting beam scanning during an on period of a DRX cycle in accordance with aspects of the present disclosure is shown.

[0055] Fig.10 A diagram of a system including a device supporting beam scanning during an on period of a DRX cycle in accordance with aspects of the present disclosure is shown.

[0056] Fig.11 and 12 A block diagram of a device supporting beam scanning during an on period of a DRX cycle in accordance with aspects of the present disclosure is shown.

[0057] Fig.13 A block diagram of a communication manager supporting beam scanning during an on period of a DRX cycle in accordance with aspects of the present disclosure is shown.

[0058] Fig.14 A diagram of a system including a device supporting beam scanning during an on period of a DRX cycle in accordance with aspects of the present disclosure is shown.

[0059] Figures 15 to 18 A flow chart illustrating a method of supporting beam scanning during an on period of a DRX cycle in accordance with aspects of the present disclosure is shown. DETAILED DESCRIPTION

[0060] In some wireless communication systems, a user equipment (UE) may enter a discontinuous reception (DRX) mode to save power. In a wireless communication system that uses directional beams to establish a communication link, the UE may perform a beam management procedure when the UE operates in the DRX mode. Such a beam management procedure may consume power and may reduce the benefits of the UE operating in the DRX mode.

[0061] Techniques for periodically sending a first signal set (e.g., a reference signal) during an on period of a DRX cycle (rather than during an off period of the DRX cycle) are described herein. Such techniques may enable a UE operating in a DRX mode to save additional power during a DRX cycle. A periodicity for sending the first signal set during an on period may be determined. The periodicity may indicate that for one DRX cycle out of every N DRX cycles, the first signal set will be sent during the on period. During other DRX cycles, the first signal set may be sent during the off period. When the first signal set is sent during the on period, the UE may avoid activating certain components during the off period, thereby saving power.

[0062] Various aspects of the present disclosure are first described in the context of wireless communication systems. Various aspects of the present disclosure are described in the context of wireless communication systems and programs. Various aspects of the present disclosure are further illustrated and described with reference to device diagrams, system diagrams, and flow charts related to beam scanning during the on period of a DRX cycle.

[0063] Figure 1 An example of a wireless communication system 100 that supports beam scanning during an on period of a DRX cycle in accordance with various aspects of the present disclosure is shown. The wireless communication system 100 includes a base station 105, a UE 115, and a core network 130. In some examples, the wireless communication system 100 may be a long term evolution (LTE) network, an advanced LTE (LTE-A) network, an LTE-A Pro network, or a new radio (NR) network. In some cases, the wireless communication system 100 may support enhanced broadband communications, ultra-reliable (e.g., mission-critical) communications, low-latency communications, or communications with low-cost and low-complexity devices.

[0064] The base station 105 may communicate wirelessly with the UE 115 via one or more base station antennas. The base station 105 described herein may include or may be referred to by those skilled in the art as a transceiver base station, a radio base station, an access point, a radio transceiver, a NodeB, an eNodeB (eNB), a next generation NodeB or a giga-nodeB (any of which may be referred to as a gNB), a home NodeB, a home eNodeB, or some other suitable term. The wireless communication system 100 may include different types of base stations 105 (e.g., macro cell base stations or small cell base stations). The UE 115 described herein may be able to communicate with various types of base stations 105 and network devices, including macro eNBs, small cell eNBs, gNBs, and relay base stations, among others.

[0065] Each base station 105 may be associated with a particular geographic coverage area 110 in which communications with various UEs 115 are supported. Each base station 105 may provide communications coverage for a respective geographic coverage area 110 via a communications link 125, and the communications link 125 between the base station 105 and the UE 115 may utilize one or more carriers. The communications link 125 shown in the wireless communication system 100 may include an uplink transmission from the UE 115 to the base station 105, or a downlink transmission from the base station 105 to the UE 115. Downlink transmissions may also be referred to as forward link transmissions, and uplink transmissions may also be referred to as reverse link transmissions.

[0066] The geographic coverage area 110 of the base station 105 can be divided into sectors that constitute only a portion of the geographic coverage area 110, and each sector can be associated with a cell. For example, each base station 105 can provide communication coverage for a macro cell, a small cell, a hotspot, or other type of cell, or various combinations thereof. In some examples, the base station 105 can be mobile and thus provide communication coverage for a mobile geographic coverage area 110. In some examples, different geographic coverage areas 110 associated with different technologies can overlap, and the same base station 105 or different base stations 105 can support overlapping geographic coverage areas 110 associated with different technologies. For example, the wireless communication system 100 may include a heterogeneous LTE / LTE-A / LTE-A Pro or NR network, in which different types of base stations 105 provide coverage for various geographic coverage areas 110.

[0067] The term "cell" refers to a logical communication entity used for communication with a base station 105 (e.g., via a carrier), and may be associated with an identifier (e.g., a physical cell identifier (PCID), a virtual cell identifier (VCID)) used to distinguish between adjacent cells operating via the same or different carriers. In some examples, a carrier may support multiple cells, and different cells may be configured according to different protocol types (e.g., machine type communication (MTC), narrowband Internet of Things (NB-IoT), enhanced mobile broadband (eMBB), or other protocol types) that may provide access to different types of devices. In some cases, the term "cell" may refer to a portion (e.g., a sector) of a geographic coverage area 110 on which the logical entity operates.

[0068] UE 115 may be dispersed throughout the wireless communication system 100, and each UE 115 may be fixed or mobile. UE 115 may also be referred to as a mobile device, a wireless device, a remote device, a handheld device, or a subscriber device, or some other suitable term, where "device" may also be referred to as a unit, a station, a terminal, or a client. UE 115 may also be a personal electronic device, such as a cellular phone, a personal digital assistant (PDA), a tablet computer, a laptop computer, or a personal computer. In some examples, UE 115 may also refer to a wireless local loop (WLL) station, an Internet of Things (IoT) device, an Internet of Everything (IoE) device, or an MTC device, etc., and the UE may be implemented in various articles such as electrical appliances, vehicles, meters, etc.

[0069] Some UEs 115, such as MTC or IoT devices, may be low-cost or low-complexity devices and may provide automated communication between machines (e.g., via machine-to-machine (M2M) communication). M2M communication or MTC may refer to data communication technology that allows devices to communicate with each other or with a base station 105 without human intervention. In some examples, M2M communication or MTC may include communications from devices that integrate sensors or meters to measure or capture information and relay the information to a central server or application, which may utilize the information or present the information to humans interacting with the program or application. Some UEs 115 may be designed to collect information or implement automated behavior of machines. Examples of applications for MTC devices include smart metering, inventory monitoring, water level monitoring, equipment monitoring, healthcare monitoring, wildlife monitoring, weather and geological event monitoring, fleet management and tracking, remote security sensing, physical access control, and transaction-based business billing.

[0070] Some UEs 115 may be configured to employ a reduced power consumption mode of operation, such as half-duplex communication (e.g., a mode that supports one-way communication via transmission or reception, but not simultaneous transmission and reception). In some examples, half-duplex communication may be performed at a reduced peak rate. Other power saving techniques for UE 115 include entering a power saving "deep sleep" mode when not engaged in active communication, or operating over a limited bandwidth (e.g., in accordance with narrowband communication). In some cases, UE 115 may be designed to support critical functions (e.g., mission-critical functions), and the wireless communication system 100 may be configured to provide ultra-reliable communication for these functions.

[0071] In some cases, UE 115 may also be able to communicate directly with other UE 115 (e.g., using a peer-to-peer (P2P) or device-to-device (D2D) protocol). One or more of a group of UEs 115 utilizing D2D communication may be within the geographic coverage area 110 of the base station 105. Other UEs 115 in such a group may be outside the geographic coverage area 110 of the base station 105 or unable to receive transmissions from the base station 105. In some cases, multiple groups of UEs 115 communicating via D2D communication may utilize a one-to-many (1:M) system, in which each UE 115 transmits to each other UE 115 in the group. In some cases, the base station 105 facilitates the scheduling of resources for D2D communication. In other cases, D2D communication is performed between UEs 115 without the involvement of the base station 105.

[0072] The base stations 105 may communicate with the core network 130 and with each other. For example, the base stations 105 may be connected to the core network 130 via a backhaul link 132 (e.g., via S1, N2, N3, or other interface). The base stations 105 may communicate with each other directly (e.g., directly between the base stations 105) or indirectly (e.g., via the core network 130) via a backhaul link 134 (e.g., via X2, Xn, or other interface).

[0073] The core network 130 may provide user authentication, access authorization, tracking, Internet Protocol (IP) connectivity, and other access, routing, or mobility functions. The core network 130 may be an evolved packet core (EPC), which may include at least one mobility management entity (MME), at least one serving gateway (S-GW), and at least one packet data network (PDN) gateway (P-GW). The MME may manage non-access stratum (e.g., control plane) functions such as mobility, authentication, and bearer management for UE 115 served by a base station 105 associated with the EPC. User IP packets may be transmitted through the S-GW, which itself may be connected to the P-GW. The P-GW may provide IP address allocation and other functions. The P-GW may be connected to a network operator IP service. Operator IP services may include access to the Internet, an intranet, an IP multimedia subsystem (IMS), or a packet switched (PS) streaming service.

[0074] At least some network devices, such as base stations 105, may include subcomponents, such as access network entities, which may be examples of access node controllers (ANCs). Each access network entity may communicate with UE 115 through multiple other access network transport entities, which may be referred to as radio heads, smart radio heads, or transmit / receive points (TRPs). In some configurations, the various functions of each access network entity or base station 105 may be distributed across various network devices (e.g., radio heads and access network controllers) or merged into a single network device (e.g., base station 105).

[0075] The wireless communication system 100 can operate using one or more frequency bands typically in the range of 300 MHz to 300 GHz. Typically, because the length of the wavelength ranges from about one decimeter to one meter, the region of 300 MHz to 3 GHz is referred to as the ultra-high frequency (UHF) region or decimeter band. Buildings and environmental features may block or redirect UHF waves. However, the waves can penetrate the structure sufficiently to enable a macro cell to provide service to a UE 115 located indoors. Compared to transmissions of smaller frequencies and longer waves using the high frequency (HF) or very high frequency (VHF) portion of the spectrum below 300 MHz, transmissions of UHF waves can be associated with smaller antennas and shorter ranges (e.g., less than 100 km).

[0076] The wireless communication system 100 may also operate in the Super High Frequency (SHF) region using frequency bands from 3 GHz to 30 GHz, also known as centimeter bands. The SHF region includes bands such as the 5 GHz Industrial, Scientific, and Medical (ISM) band, which may be used from time to time by devices that can tolerate interference from other users.

[0077] The wireless communication system 100 may also operate in the extremely high frequency (EHF) region of the spectrum also referred to as millimeter band (e.g., from 30 GHz to 300 GHz). In some examples, the wireless communication system 100 may support millimeter wave (mmW) communications between the UE 115 and the base station 105, and the EHF antennas of the corresponding devices may be even smaller and more closely spaced than the UHF antennas. In some cases, this may facilitate the use of antenna arrays within the UE 115. However, the propagation of EHF transmissions may be affected by greater atmospheric attenuation and shorter distances than SHF or UHF transmissions. The techniques disclosed herein may be employed across transmissions using one or more different frequency regions, and the designated use of bands across these frequency regions may vary from country to country or regulatory agency.

[0078] In some cases, the wireless communication system 100 can utilize both licensed radio frequency spectrum bands and unlicensed radio frequency spectrum bands. For example, the wireless communication system 100 can adopt license assisted access (LAA), LTE unlicensed (LTE-U) radio access technology, or NR technology in unlicensed bands such as 5GHz ISM bands. When operating in an unlicensed radio frequency spectrum band, wireless devices such as base stations 105 and UE 115 can adopt a listen-before-talk (LBT) procedure to ensure that the channel is clear before transmitting data. In some cases, operations in unlicensed bands can be based on a combination of CA configurations and CCs operating in licensed bands (e.g., LAA). Operations in unlicensed spectrum can include downlink transmissions, uplink transmissions, peer-to-peer transmissions, or a combination of these. Duplexing in unlicensed spectrum can be based on frequency division duplexing (FDD), time division duplexing (TDD), or a combination of both.

[0079] In some examples, the base station 105 or the UE 115 may be equipped with multiple antennas, which may be used to employ techniques such as transmit diversity, receive diversity, multiple-input multiple-output (MIMO) communication, or beamforming. For example, the wireless communication system 100 may use a transmission scheme between a transmitting device (e.g., a base station 105) and a receiving device (e.g., a UE 115), wherein the transmitting device is equipped with multiple antennas and the receiving device is equipped with one or more antennas. MIMO communication may employ multipath signal propagation to improve spectral efficiency by transmitting or receiving multiple signals via different spatial layers, which may be referred to as spatial multiplexing. Multiple signals may be transmitted, for example, by a transmitting device via different antennas or different combinations of antennas. Similarly, multiple signals may be received by a receiving device via different antennas or different combinations of antennas. Each of the multiple signals may be referred to as a separate spatial stream and may carry bits associated with the same data stream (e.g., the same codeword) or different data streams. Different spatial layers may be associated with different antenna ports for channel measurement and reporting. MIMO technology includes single-user MIMO (SU-MIMO) (where multiple spatial layers are sent to the same receiving device) and multi-user MIMO (MU-MIMO) (where multiple spatial layers are sent to multiple devices).

[0080] Beamforming (which may also be referred to as spatial filtering, directional transmission, or directional reception) is a signal processing technique that can be used at a transmitting device or a receiving device (e.g., a base station 105 or a UE 115) to shape or steer an antenna beam (e.g., a transmit beam or a receive beam) along a spatial path between the transmitting device and the receiving device. Beamforming can be achieved by combining signals communicated via antenna elements of an antenna array so that signals propagating in a particular orientation relative to the antenna array experience constructive interference, while other signals experience destructive interference. Adjustments to signals communicated via antenna elements can include the transmitting device or the receiving device applying certain amplitude and phase offsets to signals carried via each of the antenna elements associated with the device. The adjustments associated with each of the antenna elements can be defined by a set of beamforming weights associated with a particular orientation (e.g., relative to the antenna array of the transmitting device or the receiving device, or relative to some other orientation).

[0081] In one example, the base station 105 may use multiple antennas or antenna arrays to perform beamforming operations for directional communications with the UE 115. For example, some signals (e.g., synchronization signals, reference signals, beam selection signals, or other control signals) may be transmitted multiple times by the base station 105 in different directions, which may include signals transmitted according to different beamforming weight sets associated with different transmission directions. Transmissions in different beam directions may be used to identify (e.g., by the base station 105 or a receiving device such as the UE 115) a beam direction for subsequent transmission and / or reception by the base station 105. The base station 105 may transmit some signals, such as data signals associated with a particular receiving device, in a single beam direction (e.g., a direction associated with a receiving device such as the UE 115). In some examples, the beam direction associated with transmissions along a single beam direction may be determined based at least in part on signals transmitted in different beam directions. For example, UE 115 may receive one or more of the signals transmitted by base station 105 in different directions, and UE 115 may report indications of the signals it received at the highest signal quality or another acceptable signal quality to base station 105. Although these techniques are described with reference to signals transmitted by base station 105 in one or more directions, UE 115 may employ similar techniques to transmit signals multiple times in different directions (e.g., to identify a beam direction for subsequent transmission or reception by UE 115) or to transmit signals in a single direction (e.g., to send data to a receiving device).

[0082] A receiving device (e.g., UE 115, which may be an example of a mmW receiving device) may try multiple receive beams when receiving various signals such as synchronization signals, reference signals, beam selection signals, or other control signals from base station 105. For example, a receiving device may try multiple receive directions by receiving via different antenna subarrays, processing received signals according to different antenna subarrays, receiving according to different receive beamforming weight sets applied to signals received in multiple antenna elements of an antenna array, or processing received signals according to different receive beamforming weight sets applied to signals received in multiple antenna elements of an antenna array, any of which may be referred to as "listening" according to different receive beams or receive directions. In some examples, a receiving device may use a single receive beam to receive along a single beam direction (e.g., when receiving a data signal). A single receive beam may be aligned in a beam direction determined based at least in part on listening according to different receive beam directions (e.g., a beam direction having the highest signal strength, the highest signal-to-noise ratio, or otherwise acceptable signal quality determined at least in part on listening according to multiple beam directions).

[0083] In some cases, the antennas of a base station 105 or a UE 115 may be located within one or more antenna arrays that support MIMO operations or transmit or receive beamforming. For example, one or more base station antennas or antenna arrays may be co-located in an antenna assembly such as an antenna tower. In some cases, the antennas or antenna arrays associated with a base station 105 may be located in different geographic locations. A base station 105 may have an antenna array with rows and columns of multiple antenna ports that the base station 105 may use to support beamforming for communications with a UE 115. Likewise, a UE 115 may have one or more antenna arrays that may support various MIMO or beamforming operations.

[0084] In some cases, the wireless communication system 100 can be a packet-based network that operates according to a layered protocol stack. In the user plane, the communication on the bearer or packet data convergence protocol (PDCP) layer can be based on IP. In some cases, the radio link control (RLC) layer can perform packet segmentation and reorganization to communicate through logical channels. The medium access control (MAC) layer can perform priority processing and multiplexing of logical channels to transport channels. The MAC layer can also use hybrid automatic repeat request (HARQ) to provide retransmission in the MAC layer to improve link efficiency. In the control plane, the radio resource control (RRC) protocol layer can provide the establishment, configuration and maintenance of the RRC connection between the UE 115 and the base station 105 or the core network 130 that supports the radio bearer for user plane data. In the physical (PHY) layer, the transport channel can be mapped to the physical channel.

[0085] In some cases, UE 115 and base station 105 can support retransmission of data to increase the possibility of data being successfully received. HARQ feedback is a technique that increases the possibility of correctly receiving data through communication link 125. HARQ can include a combination of error detection (e.g., using cyclic redundancy check (CRC)), forward error correction (FEC) and retransmission (e.g., automatic repeat request (ARQ)). HARQ can improve the throughput in the MAC layer under poor radio conditions (e.g., signal-to-noise ratio conditions). In some cases, a wireless device can support HARQ feedback for the same time slot, wherein the device can provide HARQ feedback for data received in a previous symbol in the time slot in a specific time slot. In other cases, the device can provide HARQ feedback in a subsequent time slot or according to some other time interval.

[0086] The time interval in LTE or NR can be expressed as a multiple of the basic time unit, which can be, for example, T s =1 / 30,720,000 second sampling period. The time intervals of the communication resources may be organized according to radio frames, each radio frame having a duration of 10 milliseconds (ms), where the frame period may be expressed as T f =307,200T s. A radio frame can be identified by a system frame number (SFN) ranging from 0 to 1023. Each frame can include 10 subframes numbered from 0 to 9, and each subframe can have a duration of 1 ms. The subframe can be further divided into 2 time slots, each time slot has a duration of 0.5 ms, and each time slot can contain 6 or 7 modulation symbol periods (e.g., depending on the length of the cyclic prefix before each symbol period). In addition to the cyclic prefix, each symbol period can contain 2048 sampling periods. In some cases, a subframe can be the minimum scheduling unit of the wireless communication system 100 and can be referred to as a transmission time interval (TTI). In other cases, the minimum scheduling unit of the wireless communication system 100 can be shorter than a subframe or can be dynamically selected (e.g., in a burst of shortened TTI (sTTI) or in a selected component carrier using sTTI).

[0087] In some wireless communication systems, a time slot may be further divided into a plurality of mini-slots containing one or more symbols. In some instances, a symbol of a mini-slot or a mini-slot may be a minimum scheduling unit. For example, the duration of each symbol may vary depending on the subcarrier spacing or the operating frequency band. In addition, some wireless communication systems may implement time slot aggregation, in which a plurality of time slots or mini-slots are aggregated together and used for communication between UE 115 and base station 105.

[0088] The term "carrier" refers to a collection of radio frequency spectrum resources having a defined physical layer structure for supporting communications performed over the communication link 125. For example, a carrier of the communication link 125 may include a portion of a radio frequency spectrum that operates according to a physical layer channel for a given radio access technology. Each physical layer channel may carry user data, control information, or other signaling. A carrier may be associated with a predefined frequency channel (e.g., an Evolved UTRA (E-UTRA) Absolute Radio Frequency Channel Number (EARFCN)) and may be located according to a channel raster for discovery by a UE 115. A carrier may be a downlink or uplink (e.g., in FDD mode), or may be configured to carry downlink and uplink communications (e.g., in TDD mode). In some examples, a signal waveform transmitted over a carrier may be composed of multiple subcarriers (e.g., using a multi-carrier modulation (MCM) technique such as orthogonal frequency division multiplexing (OFDM) or DFT-s-OFDM).

[0089] The organization structure of the carrier may be different for different radio access technologies (e.g., LTE, LTE-A, LTE-A Pro, NR, etc.). For example, communications through the carrier may be organized according to TTIs or time slots, each of which may include user data and control information or signaling to support decoding of the user data. The carrier may also include dedicated acquisition signaling (e.g., synchronization signals or system information, etc.) and control signaling to coordinate the operation of the carrier. In some examples (e.g., in a carrier aggregation configuration), the carrier may also have acquisition signaling or control signaling to coordinate the operation of other carriers.

[0090] Physical channels may be multiplexed on a carrier according to various techniques. Physical control channels and physical data channels may be multiplexed on a downlink carrier, for example, using a time division multiplexing (TDM) technique, a frequency division multiplexing (FDM) technique, or a hybrid TDM-FDM technique. In some examples, control information sent in a physical control channel may be distributed in a cascaded manner between different control regions (e.g., between a common control region or common search space and one or more UE-specific control regions or UE-specific search spaces).

[0091] A carrier can be associated with a particular bandwidth of a radio frequency spectrum, and in some examples, the carrier bandwidth can be referred to as the "system bandwidth" of the carrier or wireless communication system 100. For example, the carrier bandwidth can be one of a plurality of predetermined bandwidths of a carrier for a particular radio access technology (e.g., 1.4, 3, 5, 10, 15, 20, 40, or 80 MHz). In some examples, each served UE 115 can be configured to operate on part or all of the carrier bandwidth. In other examples, some UEs 115 can be configured to operate using a narrowband protocol type associated with a predefined portion or range (e.g., a set of subcarriers or RBs) within a carrier (e.g., an "in-band" deployment of a narrowband protocol type).

[0092] In a system using MCM technology, a resource element may consist of a symbol period (e.g., the duration of a modulation symbol) and a subcarrier, where the symbol period and the subcarrier spacing are inversely related. The number of bits carried by each resource element may depend on the modulation scheme (e.g., the order of the modulation scheme). Therefore, the more resource elements received by UE 115 and the higher the order of the modulation scheme, the higher the data rate of UE 115. In a MIMO system, wireless communication resources may refer to a combination of radio frequency spectrum resources, time resources, and space resources (e.g., space layers), and the use of multiple space layers may further increase the data rate of communication with UE 115.

[0093] A device (e.g., base station 105 or UE 115) of wireless communication system 100 may have a hardware configuration that supports communication on a specific carrier bandwidth, or may be configured to support communication on one carrier bandwidth in a set of carrier bandwidths. In some examples, wireless communication system 100 may include base stations 105 and / or UEs 115 that are capable of supporting simultaneous communication via carriers associated with more than one different carrier bandwidths.

[0094] The wireless communication system 100 may support communication with the UE 115 on multiple cells or carriers, a feature that may be referred to as carrier aggregation (CA) or multi-carrier operation. Depending on the carrier aggregation configuration, the UE 115 may be configured with multiple downlink CCs and one or more uplink CCs. Carrier aggregation may be used with both FDD and TDD component carriers.

[0095] In some cases, the wireless communication system 100 can utilize an enhanced component carrier (eCC). An eCC can be characterized by one or more of the following features: a wider carrier or frequency channel bandwidth, a shorter symbol duration, a shorter TTI duration, or a modified control channel configuration. In some cases, an eCC can be associated with a carrier aggregation configuration or a dual connectivity configuration (e.g., when multiple serving cells have suboptimal or non-ideal backhaul links). An eCC can also be configured for use in an unlicensed spectrum or a shared spectrum (e.g., when more than one operator is allowed to use the spectrum). An eCC characterized by a wide carrier bandwidth can include one or more segments that can be utilized by a UE 115 that cannot monitor the entire carrier bandwidth or is otherwise configured to use a limited carrier bandwidth (e.g., to save power).

[0096] In some cases, an eCC may utilize a different symbol duration than other CCs, which may include using a shortened symbol duration compared to the symbol duration of other CCs. A shorter symbol duration may be associated with an increased spacing between adjacent subcarriers. A device utilizing an eCC (such as a UE 115 or a base station 105) may transmit a broadband signal in a shortened symbol duration (e.g., 16.67 microseconds) (e.g., according to a frequency channel or carrier bandwidth such as 20, 40, 60, 80 MHz, etc.). A TTI in an eCC may consist of one or more symbol periods. In some cases, the TTI duration (i.e., the number of symbol periods in a TTI) may be variable.

[0097] Wireless communication systems such as NR systems can utilize any combination of licensed, shared, and unlicensed spectrum bands. The flexibility of eCC symbol duration and subcarrier spacing can allow the use of eCC across multiple spectrums. In some examples, NR shared spectrum can improve spectrum utilization and spectrum efficiency, especially through dynamic vertical sharing (e.g., across frequency domain) and horizontal sharing (e.g., across time domain) of resources.

[0098] In some cases, the base station 105 may periodically transmit the first set of signals (e.g., reference signals) during an on period of the DRX cycle. By periodically transmitting during the on period, the UE 115 may not listen during a corresponding off period of the same DRX cycle, thereby allowing the UE 115 to save power when operating in DRX mode.

[0099] Figure 2 An example of a wireless communication system 200 is shown that supports techniques for sorting directional signals during discontinuous reception according to aspects of the present disclosure. In some examples, the wireless communication system 200 can implement aspects of the wireless communication system 100. The wireless communication system 200 can include one or more base stations 205 and one or more UEs 210. The base station 205 can be a reference Figure 1 UE 210 may be an example of a base station 105 described above. Figure 1 An example of UE 115 is described.

[0100] In the wireless communication system 200, the UE 210 may be configured to enter the DRX mode to save power. Many UE 210 may be battery-powered devices that may want to save power when not actively used. One method of saving power is to enter the DRX mode. In some cases, the UE 210 may enter a connected mode discontinuous reception (C-DRX). For the DRX mode, during the disconnection period, the UE 210 may not be allowed to transmit various signals. This condition may allow the UE 210 to save power by not activating its transmit chain and / or receive chain, and may allow the base station 205 to assign these resources to other UEs to improve resource utilization efficiency.

[0101] In some cases, the wireless communication system 200 can use one or more directional beams to communicate with the UE 210. In order to maintain the communication link established using the directional beam, the base station 205 and / or the UE 210 can perform one or more beam management procedures. These beam management procedures can be performed periodically to maintain the communication link. Compared with wider beams or omnidirectional beams, directional beams provide services for more limited geographic areas. Thus, as the UE 210 moves through the network, the communication link using the directional beam is more prone to failure or fading.

[0102] The beam management procedure may include the transmission of beam management signals 215 in both the uplink and downlink. For example, the base station 205 may send a reference signal set using multiple different beams (e.g., multiple different directions). Examples of reference signals may include a channel state information reference signal (CSI-RS), a demodulation reference signal (DMRS), a primary synchronization signal (PSS), a secondary synchronization signal (SSS), or a physical broadcast channel (PBCH) signal, or a combination thereof. The UE 210 may listen to these reference signals, may measure the channel conditions of these reference signals, and may select one or more beams (e.g., a beam with the best channel conditions) for future communications. The UE 210 may report the channel condition information or the selected beam to the base station 205. As part of the beam management procedure, a similar procedure may be performed for uplink communications. Using this information, the base station 205 may adjust the beam(s) used for the communication link with the UE 210. In this way, the base station 205 and the UE 210 may use the beam management procedure to maintain the communication link even when the UE 210 is moving through the coverage area.

[0103] When UE 210 operates in DRX mode, beam management procedures for maintaining a communication link may consume more power than desired by UE 210. Because directional beams are sensitive to the movement of UE 210, beam management procedures may be performed more frequently than other link management procedures in more omnidirectional networks.

[0104] In addition, the base station 205 can configure the wake-up signal 220 to communicate using certain directional beams. Even in the DRX mode, the base station 205 and the UE 210 can maintain active beams to ensure that the wake-up signal 220 can be detected by the UE 210. The wake-up signal 220 can be sent to the UE 210 operating in the DRX mode during the on period of the DRX mode. The wake-up signal 220 can indicate to the UE 210 that the base station 205 has information waiting to be sent to the UE 210. Upon receiving the wake-up signal 220, the UE 210 can enter the active mode and activate its transmit / receive chain to receive information from the base station 205.

[0105] Techniques for periodically sending a first signal set (e.g., reference signals) during an on period of a DRX cycle (rather than during an off period of the DRX cycle) are described herein. In such cases, the UE 210 may not monitor certain channels during the off period, thereby saving power.

[0106] Figure 3An example of a DRX cycle 300 is shown that supports techniques for sequencing directional signals during discontinuous reception in accordance with various aspects of the present disclosure. In some examples, the DRX cycle 300 can implement aspects of the wireless communication system 100 or 200.

[0107] The DRX cycle 300 illustrates how beam scanning 305 of a reference signal (e.g., a beam management procedure) and beam scanning of a wake-up signal 310 may be communicated during the DRX cycle 300. The DRX cycle 300 may include an off period 315 and an on period 320. The DRX cycle 300 may represent one off period 315 and one on period 320. During the on period 320, the UE 210 may monitor a physical downlink control channel (PDCCH) (e.g., for the wake-up signal 310). During the off period 315, the UE 210 may enter a sleep state and not monitor certain channels. During the off period 315, the UE 210 may save energy by deactivating certain components used for receiving and / or transmitting.

[0108] In some cases, to maintain a communication link using directional beams, the base station 205 and the UE 210 may perform a beam management procedure during the off period 315 of the DRX cycle 300. At least a portion of the beam management procedure may include the base station 205 sending a reference signal 325 in the beam scan 305. The reference signal 325 may be sent using a plurality of different beams or in a plurality of different directions. For example, a first reference signal 325-a may be sent in a first direction, a second reference signal 325-b may be sent in a second direction, a third reference signal 325-c may be sent in a third direction, a fourth reference signal 325-d may be sent in a fourth direction, a fifth reference signal 325-e may be sent in a fifth direction, and so on.

[0109] UE 210 may provide feedback information to base station 205 indicating one or more beams associated with reference signal 325 that may be used for a wake-up signal. For example, UE 210 may indicate that a beam associated with reference signal 325-c may be used for wake-up signal 330-a, and a beam associated with reference signal 325-e may be used for wake-up signal 330-b. Figure 4 Additional details are described regarding some of these operations.

[0110] To reduce the amount of power consumed by a UE 210 operating in DRX mode while performing beam management procedures, the base station 205 may periodically perform beam scanning 305 during an on period 320 rather than during an off period 315. During such circumstances, the UE 210 may avoid monitoring certain channels during the off period 315 of the DRX cycle 300.

[0111] Figure 4 An example of a DRX procedure 400 that supports techniques for sorting directional signals during discontinuous reception according to aspects of the present disclosure is shown. In some examples, the DRX procedure 400 can implement aspects of the wireless communication system 100 or 200. The DRX procedure 400 includes operations performed by a base station 405 and a UE 410 and communications exchanged between the base station and the UE. The base station 405 can be a reference Figures 1 to 3 Examples of base stations 105 and 205 are described. The UE may be a reference Figures 1 to 3 Examples of UEs 115 and 210 are described.

[0112] The DRX procedure 400 may include a beam scanning procedure 415, a beam restoration reception procedure 420, and a wake-up procedure 425. In some cases, the beam scanning procedure 415 and the beam restoration reception procedure 420 may be at least part of a beam management procedure.

[0113] During the beam scanning procedure 415, the base station 405 may transmit a reference signal using the plurality of beams 430. For example, each beam may be used to transmit a reference signal. Each beam in the plurality of beams 430 may represent a unique beam configuration used during the beam scanning procedure 415. In some cases, each beam may be pointed in a different direction. The beam scanning procedure 415 may be performed during an off period of a DRX cycle. Examples of reference signals may include CSI-RS, DMRS, PSS, SSS, or a combination thereof.

[0114] UE 410 may listen to reference signals that use beams that have been designated for use by base station 405 and UE 410. For example, if the communication link between base station 405 and UE 410 uses the third beam of multiple beams 430. UE 410 may measure the signal quality of the beam. If the pre-configured beam meets the signal quality threshold, UE 410 may stop listening to other reference signals and may go back to sleep. In such cases, UE 410 may not send any feedback information to base station 405. Base station 405 may interpret silence from UE 410 as indicating that the communication link is good as currently configured.

[0115] If the preconfigured beams cannot meet the signal quality threshold, the UE 410 may listen to the reference signals during the beam scanning procedure 415. The UE 410 may measure the signal quality of each of the reference signals received from the base station 405. Examples of signal quality that may be measured by the UE 410 may include received signal received power (RSRP), received signal received quality (RSRQ), signal-to-noise ratio (SNR), interference plus noise ratio (SNIR), or a combination thereof.

[0116] In some cases, UE 410 may select one or more beams for future communications (e.g., wake-up signals). In such cases, UE 410 may select a beam or beam index from beams 430 for communicating the wake-up signal. In some cases, UE 410 may identify a first beam to communicate the wake-up signal during an on period of a DRX cycle.

[0117] UE 410 may send feedback information about signal conditions measured for a reference signal to base station 405. In some cases, the feedback information may include RSRP, RSPQ, SNR, SNIR, or other measured quantities. In these cases, base station 405 may select a beam for a wake-up signal. In some cases, the feedback information may include a beam index of a beam selected by UE 410 for a wake-up signal that satisfies a corresponding threshold. In some cases, the feedback information may indicate a main beam preference and at least one or more auxiliary beam preferences. In such cases, base station 405 may place the main beam preference at the highest priority and place one or more auxiliary beam preferences at a lower priority.

[0118] In some cases, the UE 410 may report feedback information using a beam recovery receive procedure 420. During the beam recovery receive procedure 420, the base station 405 may configure its receive chain with a plurality of receive configurations 435. The base station 405 may sweep through the receive configurations 435. In some cases, there is a one-to-one mapping between the beam 430 used during the beam scanning procedure 415 and the receive configurations 435 used during the beam recovery receive procedure 420.

[0119] The UE 410 may transmit one or more beam restoration signals 440 for each beam selected by the UE 410 for future communications (e.g., a beam selected for use with a wake-up signal). The UE 410 may transmit the beam restoration signal 440 to be consistent with the receive configuration 435 associated with the selected beam. For example, the UE 410 may transmit the beam restoration signal 440 during the second receive configuration and the fifth receive configuration. This indicates that the UE 410 will prefer to communicate during the use of the second beam and the fifth beam from the plurality of beams 430.

[0120] During the wake-up procedure 425, the base station 405 may transmit a wake-up signal using one or more selected beams 445. The wake-up procedure may be performed during an on period of a DRX cycle of the UE 410. If the UE 410 determines that the base station 405 includes information waiting to be sent to the UE 410, the UE 410 may enter an active mode and receive the information from the base station 405.

[0121] In some cases, the beam scanning procedure 415 and the beam restoration reception procedure 420 may be performed during the off period of the DRX cycle. In other cases, the base station 405 and / or the UE 410 may be configured to periodically perform the beam scanning procedure 415 and / or the beam restoration reception procedure 420 during the on period of the DRX cycle. In such cases, the UE 410 may be able to save some power by performing the beam management procedure during the on period (rather than during the off period).

[0122] Figure 5 An example of a DRX cycle 500 that supports beam scanning during an on period of the DRX cycle in accordance with aspects of the present disclosure is shown. In some examples, the DRX cycle 500 can implement aspects of wireless communication systems 100 and 200.

[0123] The DRX cycle 500 shows how beam management procedures and wake-up procedures can be performed across multiple DRX cycles. In order to maintain a directional communication link when the UE is operating in DRX mode, beam scanning of a signal (e.g., a reference signal) can be performed during the disconnection period of the DRX cycle. For example, beam scanning 515 can be performed during the disconnection period 505-a of the first DRX cycle 500-a and during the disconnection period 505-b of the second DRX cycle 500-b. Performing beam scanning during the disconnection period may consume the power of the UE, thereby reducing the overall power savings associated with the DRX mode. In order to save additional power when operating in DRX mode, beam scanning of signals can be periodically communicated during the on period of the DRX cycle rather than the off period. For example, beam scanning 515 can be performed during the on period 510-c of the third DRX cycle 500-c. In such an example, the base station can avoid sending beam scanning 515 during the disconnection period 505-c of the third DRX cycle 500-c.

[0124] Each DRX cycle 500 includes an off period 505 and an on period 510. During the on period 510, the UE may monitor the PDCCH (e.g., for the wake-up signal 310). During the off period 505, the UE may enter a sleep state and not monitor certain channels. During the off period 505, the UE may save energy by deactivating certain components for receiving and / or transmitting. Each DRX cycle 500 includes at least one off period 505 and at least one on period 510. In some cases, the DRX cycle 500 may be defined as one off period 505 and one on period 510.

[0125] During the on period 510 of the DRX cycle 500, the UE may be configured to at least partially wake up (e.g., activate some or all of its communication components) and listen for a wake-up signal 535. The wake-up signal 535 may indicate to the UE whether the base station includes buffered data waiting to be sent to the UE. Sometimes, when the UE is operating in DRX mode, the UE and the base station may perform beam management procedures to maintain a communication link. When a directional beam is used to establish a communication link, the UE and the base station may perform more beam management procedures compared to other wireless communication systems. The UE may consume power when performing these beam management procedures.

[0126] As part of some beam management procedures, the base station may perform beam scanning 515 during the off period 505 of the DRX cycle 500. The beam scanning 515 may include transmitting a signal set 525 using a beam set 530. Figure 5 In FIG. 5 , each signal is represented by a box, and each beam used to transmit a signal is represented by the shading of the box. In some cases, signal 525 is a reference signal. The UE can measure the reference signal and report to the base station which signal is suitable for use in future communications.

[0127] During the on period 510, the base station may perform scanning 520 of a wake-up signal 535 sent using beam set 540. In some cases, beam set 540 is a subset of beam set 530 used during beam scanning 515. This may be because the base station may select which beams to use for the wake-up signal 535 based on feedback from the UE after beam scanning 515.

[0128] To save additional power when operating in DRX mode, a wireless communication system including a base station and a UE may periodically cause beam scanning of a reference signal to occur during an on period 510 of a DRX cycle 500, rather than during an off period of the DRX cycle 500. For example, during a third DRX cycle 500-c, beam scanning 515 may be performed during an on period 510-c, rather than during an off period 505-c.

[0129] In some cases, the base station and / or UE may identify a periodicity for sending the reference signal 525 during the on period 510 of the DRX cycle 500. For example, the base station may be configured to send the beam scan 515 during an on period 510 in one DRX cycle out of every N DRX cycles. Figure 3 In the illustrative example of , N is equal to 3, and beam scans 515 are sent during the on period 510 every three DRX cycles.

[0130] Figure 6An example of a process flow 600 for supporting beam scanning during an on period of a DRX cycle according to aspects of the present disclosure is shown. In some examples, the process flow 600 can implement aspects of wireless communication systems 100 and 200. The process flow 600 can include functions performed and communications exchanged between a base station 605 and a UE 610. The base station 605 can be a reference Figures 1 to 5 Examples of base stations 105, 205, and 405 are described. UE 610 may be a reference Figures 1 to 5 Examples of UEs 115, 210, and 410 are described.

[0131] Process flow 600 may illustrate a technique for periodically transmitting a reference signal during the on period 510 of the DRX cycle 500, rather than during the off period 505 of the DRX cycle 500. Such techniques may enable a processor operating in a DRX mode to save additional power during the DRX cycle.

[0132] The UE 610 may optionally send status information 615 to the base station 605. The status information 615 may indicate whether the UE 610 is operating in a DRX mode or a C-DRX mode, entering a DRX mode or a C-DRX mode, leaving a DRX mode or a C-DRX mode, battery status information about the UE, or other information about the UE, or a combination thereof.

[0133] The base station 620 may determine a periodicity for sending certain signals during an on period 510 of a DRX cycle 500. For example, the base station 620 may determine a periodicity for sending a first set of signals (e.g., a reference signal) during an on period 510. The periodicity may indicate that the first set of signals may be sent during an on period 510 in one of every N DRX cycles 500, where N is an indicator of the periodicity. In some cases, the base station 605 may determine a periodicity for sending a wake-up signal during an on period 510 of a DRX cycle 500. In some cases, the UE 610 may identify the periodicity for sending a signal based on data or based on signaling from the base station 605. In some cases, the base station 605 may send a message indicating the periodicity to the UE 610, and the UE 610 may determine the periodicity based on receiving the message. In some cases, the first set of signals may be sent once in every N DRX on periods, and the second set of signals may be sent during the remaining non-N on periods. For example, if N=3, the first signal set may be sent during one of every three DRX on cycles, and the second signal set may be sent during the other two of the three DRX on cycles during the periodicity. In some cases, the first signal set may be sent once in every M DRX off cycles. In some cases, the value of M and the value of N may be different. In some cases, the value of M may be equal to 1.

[0134] At box 625, the base station 605 may optionally randomize the order of the first beam set used to send the first signal set (e.g., reference signals) during the on period 510 or the off period 505 of the DRX cycle 500. In some cases, when the network includes many nodes, the reference signal may interfere with other signals or other references. In order to reduce interference between reference signals across one or more cells (e.g., interference from adjacent cells), the order of beams used to send reference signals may be randomized to reduce the likelihood that two beams send the same signal at the same time. In some cases, the randomization of the first beam set may be based on a cell identifier, a UE identifier, a UE group identifier, or a combination thereof. In some cases, the base station 605 may randomize the beam using a cell-specific randomization seed. In some cases, the beam is a gNB beam.

[0135] At block 630, functions and communications associated with an Nth non-DRX cycle are described. The Nth non-DRX cycle may refer to a DRX cycle in which the first signal set is not transmitted during the on period 510. Examples of the Nth non-DRX cycle may include Figure 5 A first DRX cycle 500 - a and a second DRX cycle 500 - b are shown.

[0136] At block 635, the base station 605 may identify the configuration of the DRX cycle. This may include comparing the index of the DRX cycle to the periodicity or periodicity parameter. In some cases, the base station 605 may apply a modulo (mod) operator to the index of the DRX cycle to determine whether the first signal set should be sent during the on period 510.

[0137] When determining the configuration of the DRX cycle, the base station 605 may send a first signal set 640 during the disconnection period 505 of the DRX cycle 500 (e.g., the first DRX cycle 500-a and the second DRX cycle 500-b). The first signal set 640 may be an example of a reference signal. For example, the first signal set 640 may include a CSI-RS, a PSS, a SSS, a DMRS of a PBCH, or a tracking reference signal, or a combination thereof. In some cases, the first signal set 640 may include a PDCCH having one or more CRC bits scrambled using a radio network temporary identifier (RNTI) associated with the UE.

[0138] The base station 605 may send a second signal set 645 during the on period 510 of the DRX cycle 500 based on the configuration of the determined DRX cycle (e.g., the first DRX cycle 500-a and the second DRX cycle 500-b). The second signal set 645 may be an example of a wake-up signal. The number of wake-up signals sent during the on period may be different from the number of wake-up signals sent during the off period.

[0139] At block 650, functions and communications associated with an Nth DRX cycle are described. The Nth DRX cycle may refer to a DRX cycle in which a first signal set is transmitted during the on period 510. Examples of the Nth DRX cycle may include Figure 5 A third DRX cycle 500-c is shown.

[0140] At block 655, the base station 605 may identify the configuration of the DRX cycle. This may include comparing the index of the DRX cycle to the periodicity or periodicity parameter. In some cases, the base station 605 may apply a mod operator to the index of the DRX cycle to determine whether the first signal set should be sent during the on period 510.

[0141] When determining the configuration of the DRX cycle, the base station 605 may send a first signal set 665 during an on period 510 (e.g., a third DRX cycle 500-c) of the DRX cycle 500. The first signal set 665 may be an example of a reference signal. For example, the first signal set 665 may include a CSI-RS, a PSS, a SSS, a DMRS of a PBCH, or a tracking reference signal, or a combination thereof. In some cases, the first signal set 665 may include a PDCCH having one or more CRC bits scrambled using an RNTI associated with the UE. In some cases, the base station 605 may avoid sending the first signal set 665 during the off period 505 during the DRX cycle 500, because the first signal set 665 is sent during the on period 510 instead. During the off period 505 associated with the on period 510, the UE 610 may avoid monitoring the first signal set 665.

[0142] When the first signal set 665 is transmitted during the on period 510, the base station 605 may determine what to do with respect to transmitting the second signal set 670 (e.g., wake-up signals) during the on period 510. In some cases, the base station 605 may avoid transmitting the second signal set 670 and may instead wait for an on period 510 that does not include transmission of the first signal set 665 (e.g., reference signals).

[0143] In some cases, at block 660, the base station 605 may optionally encode wake-up information into the first signal set 665. In such cases, the first signal set 665 may be used both as a reference signal and as a wake-up signal. In some cases, each signal in the first signal set is encoded with at least some wake-up information. However, in other cases, a subset of the signals in the first signal set 665 are encoded with wake-up information.

[0144] In some cases, the base station 605 may transmit the second set of signals 670 during the on-period 510, as well as transmitting the first set of signals 665. In such cases, both sets of signals are transmitted within the same on-period 510.

[0145] In some cases, the base station 605 may determine a location for transmitting the first signal set 665 during the on period. The base station 605 may determine a location to distribute the "load" of training among the UEs sharing the DRX cycle. In some cases, multiple UEs may at least partially share the on period of the DRX cycle. The location of the transmission of the first signal set 665 may be located to increase the number of UEs that can receive the first signal set and thereby reduce the number of times the first signal set may need to be transmitted.

[0146] In some cases, the base station 605 may avoid sending the first signal set in an off period 505 of a DRX cycle 500 adjacent to a DRX cycle 500 in which the first signal set is sent during an on period 510. For example, if the first signal set is to be sent during an on period 510-c of a third DRX cycle 500-c, the base station 605 may also avoid sending the first signal set during an off period 505-b of a second DRX cycle or during an off period 505 of a fourth DRX cycle. Such a procedure may be configured to allow the UE 610 to save additional power.

[0147] In some cases, the beginning of the on period 510 (sometimes referred to as the "head end") can be used for fine beam training to quickly and accurately determine the desired beam. In some cases, the end of the on period 510 (sometimes referred to as the "tail end") can be used for coarse beam training to account for beam changes during the off period 505. The first signal set can be configured for fine beam training or coarse beam training. In such cases, the first signal set can be sent twice in the same on period 510. Similar operations for fine beam training and coarse beam training can also be performed during the off period 505.

[0148] UE 610 may send feedback information to base station 605 in response to receiving the first signal set. For example, UE 610 may measure the signal quality of each signal in the first signal set. UE 610 may use the information in reference to Figure 4 Aspects of process flow 600 may be similar to those described in reference to Figure 4 The DRX procedure 400 is described in conjunction with.

[0149] Figure 7 A block diagram 700 of a device 705 supporting beam scanning during an on period of a DRX cycle according to aspects of the present disclosure is shown. The device 705 may be an example of aspects of a UE 115 as described herein. The device 705 may include a receiver 710, a communication manager 715, and a transmitter 720. The device 705 may also include a processor. Each of these components may communicate with each other (e.g., via one or more buses).

[0150] The receiver 710 may receive information such as packets, user data, or control information associated with various information channels (e.g., control channels, data channels, and information related to beam scanning during an on period of a DRX cycle, etc.). The information may be delivered to other components of the device 705. The receiver 710 may be a reference Fig.10 Examples of various aspects of the transceiver 1020 are described. The receiver 710 may utilize a single antenna or a group of antennas.

[0151] The communication manager 715 may receive a first signal set by the UE using a first beam set during an on period of a first DRX cycle associated with the UE operating in DRX mode, and receive a second wake-up signal set by the UE using a second beam set during an on period of a second DRX cycle associated with the UE, the second DRX cycle being different from the first DRX cycle. The communication manager 715 may be an example of aspects of the communication manager 1010 described herein.

[0152] The communication manager 715 or its subcomponents may be implemented in hardware, in code (e.g., software or firmware) executed by a processor, or any combination thereof. If implemented in code executed by a processor, the functions of the communication manager 715 or its subcomponents may be performed by a general purpose processor, a digital signal processor (DSP), an application specific integrated circuit (ASIC), a field programmable gate array (FPGA) or other programmable logic device, discrete gate or transistor logic, discrete hardware components, or any combination thereof designed to perform the functions described in the present disclosure.

[0153] The communication manager 715 or its subcomponents can be physically located in various locations, including being distributed so that portions of the functionality are implemented by one or more physical components at different physical locations. In some examples, according to various aspects of the present disclosure, the communication manager 715 or its subcomponents can be separate and distinct components. In some examples, according to various aspects of the present disclosure, the communication manager 715 or its subcomponents can be combined with one or more other hardware components, including but not limited to: input / output (I / O) components, transceivers, network servers, another computing device, one or more other components described according to the present disclosure, or a combination thereof.

[0154] Transmitter 720 can transmit signals generated by other components of device 705. In some examples, transmitter 720 can be collocated with receiver 710 in a transceiver module. For example, transmitter 720 can be a reference Fig.10 Examples of various aspects of the transceiver 1020 are described. The transmitter 720 may utilize a single antenna or a group of antennas.

[0155] Figure 8 A block diagram 800 of a device 805 supporting beam scanning during an on period of a DRX cycle according to aspects of the present disclosure is shown. The device 805 may be an example of aspects of the device 705 or UE 115 as described herein. The device 805 may include a receiver 810, a communication manager 815, and a transmitter 830. The device 805 may also include a processor. Each of these components may communicate with each other (e.g., via one or more buses).

[0156] The receiver 810 may receive information such as packets, user data, or control information associated with various information channels (e.g., control channels, data channels, and information related to beam scanning during an on period of a DRX cycle, etc.). The information may be delivered to other components of the device 805. The receiver 810 may be a reference Fig.10 Examples of various aspects of the transceiver 1020 are described. The receiver 810 may utilize a single antenna or a group of antennas.

[0157] The communication manager 815 may be an example of aspects of the communication manager 715 as described herein. The communication manager 815 may include a beam management signal manager 820 and a wake-up signal manager 825. The communication manager 815 may be an example of aspects of the communication manager 1010 as described herein.

[0158] The beam management signal manager 820 may receive a first signal set using a first beam set by a UE during an on period of a first DRX cycle associated with the UE operating in the DRX mode.

[0159] The wake-up signal manager 820 may receive a second wake-up signal set by the UE using a second beam set during an on period of a second DRX cycle associated with the UE, the second DRX cycle being different from the first DRX cycle.

[0160] The transmitter 830 can transmit signals generated by other components of the device 805. In some examples, the transmitter 830 can be collocated with the receiver 810 in the transceiver module. For example, the transmitter 830 can be a reference Fig.10 Examples of various aspects of the transceiver 1020 are described. The transmitter 830 may utilize a single antenna or a group of antennas.

[0161] Fig. 9 A block diagram 900 of a communication manager 905 supporting beam scanning during an on period of a DRX cycle in accordance with aspects of the present disclosure is shown. The communication manager 905 may be an example of aspects of the communication manager 715, the communication manager 815, or the communication manager 1010 described herein. The communication manager 905 may include a beam management signal manager 910, a wake-up signal manager 915, a state manager 920, a periodicity manager 925, and a DRX cycle manager 930. Each of these modules may communicate with each other directly or indirectly (e.g., via one or more buses).

[0162] The beam management signal manager 910 may receive a first signal set using a first beam set by a UE during an on period of a first DRX cycle associated with a UE operating in DRX mode. In some cases, the first signal set is received once during an on period of the DRX cycle in every N DRX cycles. In some cases, the first signal set includes a reference signal set. In some cases, the first signal set includes a PDCCH having one or more CRC bits scrambled using an RNTI associated with the UE. In some cases, the first signal set includes a CSI-RS, a PSS, a SSS, a DMRS of a PBCH, or a tracking reference signal, or a combination thereof.

[0163] The wake-up signal manager 915 may receive a second wake-up signal set by the UE using a second beam set during an on period of a second DRX cycle associated with the UE, the second DRX cycle being different from the first DRX cycle. In some examples, the wake-up signal manager 915 may identify wake-up information encoded into at least one reference signal in the first signal set transmitted during the on period of the first DRX cycle. In some cases, the second beam set is a subset of the first beam set. In some cases, the number of beams in the first beam set is different from the number of beams in the second beam set.

[0164] The state manager 920 may be sent by the UE to state information about the UE, wherein receiving the first signal set is based on sending the state information. In some examples, the state manager 920 may send battery state information to the base station. In some cases, the UE is in C-DRX mode.

[0165] The periodicity manager 925 may identify the periodicity of the first signal set and the second wake-up signal set based on the transmission status information.

[0166] The DRX cycle manager 930 may receive the first signal set during the off period of the second DRX cycle based on receiving the second wake-up signal set during the on period of the second DRX cycle. In some examples, the DRX cycle manager 930 may receive the second wake-up signal set during the on period of the first DRX cycle based on receiving the first signal set during the on period of the first DRX cycle.

[0167] Fig.10A diagram of a system 1000 including a device 1005 that supports beam scanning during an on period of a DRX cycle according to aspects of the present disclosure is shown. The device 1005 may be an example of or include components of the device 705, device 805, or UE 115 described herein. The device 1005 may include components for two-way voice and data communications, including components for sending and receiving communications, including a communication manager 1010, an I / O controller 1015, a transceiver 1020, an antenna 1025, a memory 1030, and a processor 1040. These components may communicate electronically via one or more buses (e.g., bus 1045).

[0168] The communication manager 1010 can receive a first signal set by the UE using a first beam set during an on period of a first DRX cycle associated with the UE operating in DRX mode; and receive a second wake-up signal set by the UE using a second beam set during an on period of a second DRX cycle associated with the UE, the second DRX cycle being different from the first DRX cycle.

[0169] I / O controller 1015 can manage input and output signals for device 1005. I / O controller 1015 can also manage peripheral devices that are not integrated into device 1005. In some cases, I / O controller 1015 can represent a physical connection or port to an external peripheral device. In some cases, I / O controller 1015 can utilize a computer such as a , or other known operating systems. In other cases, I / O controller 1015 may represent or interact with a modem, keyboard, mouse, touch screen, or similar device. In some cases, I / O controller 1015 may be implemented as part of a processor. In some cases, a user may interact with device 1005 via I / O controller 1015 or via hardware components controlled by I / O controller 1015.

[0170] As described herein, transceiver 1020 can communicate bidirectionally via one or more antennas, wired or wireless links. For example, transceiver 1020 can represent a wireless transceiver and can communicate bidirectionally with another wireless transceiver. Transceiver 1020 can also include a modem to modulate packets and provide the modulated packets to an antenna for transmission, and demodulate packets received from an antenna.

[0171] In some cases, a wireless device may include a single antenna 1025. However, in some cases, the device may have more than one antenna 1025, which may be capable of sending or receiving multiple wireless transmissions simultaneously.

[0172] Memory 1030 may include random access memory (RAM) and read-only memory (ROM). Memory 1030 may store computer-readable, computer-executable code 1035 including instructions that, when executed, cause the processor to perform the various functions described herein. In some cases, memory 1030 may include, among other things, a basic input / output (BIOS), which may control basic hardware or software operations, such as interacting with peripheral components or devices.

[0173] Processor 1040 may include an intelligent hardware device (e.g., a general purpose processor, a DSP, a CPU, a microcontroller, an ASIC, an FPGA, a programmable logic device, a discrete gate or transistor logic component, a discrete hardware component, or any combination thereof). In some cases, processor 1040 may be configured to operate a memory array using a memory controller. In other cases, the memory controller may be integrated into processor 1040. Processor 1040 may be configured to execute computer-readable instructions stored in a memory (e.g., memory 1030) to cause device 1005 to perform various functions (e.g., functions or tasks that support beam scanning during the on period of a DRX cycle).

[0174] The code 1035 may include instructions for implementing various aspects of the present disclosure, including instructions for supporting wireless communications. The code 1035 may be stored in a non-transitory computer-readable medium such as a system memory or other type of memory. In some cases, the code 1035 may not be directly executable by the processor 1040, but may cause a computer (e.g., when compiled and executed) to perform the functions described herein.

[0175] Fig.11 A block diagram 1100 of a device 1105 supporting beam scanning during an on period of a DRX cycle according to aspects of the present disclosure is shown. The device 1105 may be an example of aspects of a base station 105 as described herein. The device 1105 may include a receiver 1110, a communication manager 1115, and a transmitter 1120. The device 1105 may also include a processor. Each of these components may communicate with each other (e.g., via one or more buses).

[0176] The receiver 1110 may receive information such as packets, user data, or control information associated with various information channels (e.g., control channels, data channels, and information related to beam scanning during an on period of a DRX cycle, etc.). The information may be delivered to other components of the device 1105. The receiver 1110 may be a reference Fig.14 Examples of various aspects of the transceiver 1420 are described. The receiver 1110 may utilize a single antenna or a group of antennas.

[0177] The communication manager 1115 may send a first signal set to the UE using a first beam set during an on period of a first DRX cycle associated with the UE operating in the DRX mode; and send a second wake-up signal set to the UE using a second beam set during an on period of a second DRX cycle associated with the UE, the second DRX cycle being different from the first DRX cycle. The communication manager 1115 may be an example of aspects of the communication manager 1410 described herein.

[0178] The communication manager 1115 or its subcomponents may be implemented in hardware, in code (e.g., software or firmware) executed by a processor, or any combination thereof. If implemented in code executed by a processor, the functions of the communication manager 1115 or its subcomponents may be controlled by a general purpose processor, a DSP, an ASIC, an FPGA or other programmable logic device, discrete gate or transistor logic, discrete hardware components, or any combination thereof designed to perform the functions described in the present disclosure.

[0179] The communication manager 1115 or its subcomponents may be physically located in various locations, including being distributed so that portions of the functionality are implemented by one or more physical components at different physical locations. In some examples, according to various aspects of the present disclosure, the communication manager 1115 or its subcomponents may be separate and distinct components. In some examples, according to various aspects of the present disclosure, the communication manager 1115 or its subcomponents may be combined with one or more other hardware components, including, but not limited to, input / output (I / O) components, transceivers, network servers, another computing device, one or more other components described according to the present disclosure, or a combination thereof.

[0180] Transmitter 1120 can transmit signals generated by other components of device 1105. In some examples, transmitter 1120 can be collocated with receiver 1110 in a transceiver module. For example, transmitter 1120 can be a reference Fig.14 Examples of various aspects of the transceiver 1420 are described. The transmitter 1120 may utilize a single antenna or a group of antennas.

[0181] Fig.12 A block diagram 1200 of a device 1205 supporting beam scanning during an on period of a DRX cycle according to aspects of the present disclosure is shown. The device 1205 may be an example of aspects of the device 1105 or UE 115 as described herein. The device 1205 may include a receiver 1210, a communication manager 1215, and a transmitter 1230. The device 1205 may also include a processor. Each of these components may communicate with each other (e.g., via one or more buses).

[0182] The receiver 1210 may receive information such as packets, user data, or control information associated with various information channels (e.g., control channels, data channels, and information related to beam scanning during an on period of a DRX cycle, etc.). The information may be delivered to other components of the device 1205. The receiver 1210 may be a reference Fig.14 Examples of various aspects of the transceiver 1420 are described. The receiver 1210 may utilize a single antenna or a group of antennas.

[0183] The communication manager 1215 may be an example of aspects of the communication manager 1115 as described herein. The communication manager 1215 may include a beam management signal manager 1220 and a wake-up signal manager 1225. The communication manager 1215 may be an example of aspects of the communication manager 1410 as described herein.

[0184] The beam management signal manager 1220 may send a first signal set to the UE using a first beam set during an on period of a first DRX cycle associated with the UE operating in the DRX mode.

[0185] The wake-up signal manager 1225 may send a second wake-up signal set to the UE using a second beam set during an on period of a second DRX cycle associated with the UE, the second DRX cycle being different from the first DRX cycle.

[0186] Transmitter 1230 can transmit signals generated by other components of device 1205. In some examples, transmitter 1230 can be collocated with receiver 1210 in a transceiver module. For example, transmitter 1230 can be a reference Fig.14 Examples of various aspects of the transceiver 1420 are described. The transmitter 1230 may utilize a single antenna or a group of antennas.

[0187] Fig.13 A block diagram 1300 of a communication manager 1305 supporting beam scanning during an on period of a DRX cycle in accordance with aspects of the present disclosure is shown. The communication manager 1305 may be an example of aspects of the communication manager 1115, the communication manager 1215, or the communication manager 1410 described herein. The communication manager 1305 may include a beam management signal manager 1310, a wake-up signal manager 1315, a state manager 1320, a periodicity manager 1325, a randomization manager 1330, a DRX cycle manager 1335, and a coding manager 1340. Each of these modules may communicate with each other directly or indirectly (e.g., via one or more buses).

[0188] The beam management signal manager 1310 may send a first signal set to the UE using a first beam set during an on period of a first DRX cycle associated with a UE operating in DRX mode. In some cases, the first signal set is sent once during the on period of the DRX cycle in every N DRX cycles. In some cases, the number of beams in the first beam set is different from the number of beams in the second beam set. In some cases, the first signal set includes a CSI-RS, a PSS, a SSS, a DMRS of a PBCH, or a tracking reference signal or a combination thereof. In some cases, the first signal set includes a reference signal set. In some cases, the first signal set includes a PDCCH having one or more CRC bits scrambled using an RNTI associated with the UE.

[0189] The wake-up signal manager 1315 may send a second wake-up signal set to the UE using a second beam set during an on period of a second DRX cycle associated with the UE, the second DRX cycle being different from the first DRX cycle. In some examples, the wake-up signal manager 1315 may send the second wake-up signal set during an on period of the first DRX cycle based on sending the first signal set during an on period of the first DRX cycle. In some cases, the second beam set is a subset of the first beam set.

[0190] The state manager 1320 may receive state information about the UE from the UE, wherein sending the first signal set is based on receiving the state information. In some examples, the state manager 1320 may receive battery state information from the UE. In some cases, the UE is in C-DRX mode.

[0191] The periodicity manager 1325 may identify the periodicity of the first signal set and the second wake-up signal set based on the received state information. In some examples, the periodicity manager 1325 may identify the first DRX cycle as a DRX cycle in which the first signal set is sent during an on period of the DRX cycle, wherein sending the first signal set is based on identifying the first DRX cycle.

[0192] The randomization manager 1330 can randomize an order of first beam sets transmitted across one or more cells during an on period of a first DRX cycle, wherein transmitting the first signal set is based on randomizing the order. In some examples, the randomization manager 1330 can randomize the first beam set, wherein the randomization of the first beam set is based on a cell identifier, a UE identifier, or a UE group identifier, or a combination thereof.

[0193] The DRX cycle manager 1335 may avoid sending the first signal set during an off period of the first DRX cycle based on sending the first signal set during a first on period of the first DRX cycle. In some examples, the DRX cycle manager 1335 may send the first signal set during an off period of the second DRX cycle based on sending the second wake-up signal set during an on period of the second DRX cycle. In some examples, the DRX cycle manager 1335 may avoid sending the first signal set during an off period of a DRX cycle adjacent to the first DRX cycle.

[0194] The encoding manager 1340 may encode the wake-up information into at least one reference signal in a first signal set transmitted during an on period of the first DRX cycle, wherein transmitting the first signal set during an on period of the first DRX cycle is based on encoding the wake-up information into at least one reference signal.

[0195] Fig.14 A diagram of a system 1400 including a device 1405 supporting beam scanning during an on period of a DRX cycle according to aspects of the present disclosure is shown. The device 1405 may be an example of or include components of the device 1105, device 1205, or base station 105 described herein. The device 1405 may include components for two-way voice and data communications, including components for sending and receiving communications, including a communication manager 1410, a network communication manager 1415, a transceiver 1420, an antenna 1425, a memory 1430, a processor 1440, and an inter-station communication manager 1445. These components may communicate electronically via one or more buses (e.g., bus 1450).

[0196] The communication manager 1410 can use a first beam set to send a first signal set to the UE during an on-period of a first DRX cycle associated with the UE operating in DRX mode; and use a second beam set to send a second wake-up signal set to the UE during an on-period of a second DRX cycle associated with the UE, wherein the second DRX cycle is different from the first DRX cycle.

[0197] The network communications manager 1415 may manage communications with the core network (eg, via one or more wired backhaul links). For example, the network communications manager 1415 may manage the transmission of data communications for client devices, such as one or more UEs 115.

[0198] As described herein, transceiver 1420 can communicate bidirectionally via one or more antennas, wired or wireless links. For example, transceiver 1420 can represent a wireless transceiver and can communicate bidirectionally with another wireless transceiver. Transceiver 1420 can also include a modem to modulate packets and provide the modulated packets to an antenna for transmission, and demodulate packets received from an antenna.

[0199] In some cases, a wireless device may include a single antenna 1425. However, in some cases, the device may have more than one antenna 1425, which may be capable of sending or receiving multiple wireless transmissions simultaneously.

[0200] Memory 1430 may include RAM, ROM, or a combination thereof. Memory 1430 may store computer readable code 1435 including instructions that, when executed by a processor (e.g., processor 1440), cause the device to perform various functions described herein. In some cases, memory 1430 may include, among other things, a BIOS that may control basic hardware or software operations, such as interacting with peripheral components or devices.

[0201] Processor 1440 may include an intelligent hardware device (e.g., a general purpose processor, a DSP, a CPU, a microcontroller, an ASIC, an FPGA, a programmable logic device, a discrete gate or transistor logic component, a discrete hardware component, or any combination thereof). In some cases, processor 1440 may be configured to operate a memory array using a memory controller. In some cases, the memory controller may be integrated into processor 1440. Processor 1440 may be configured to execute computer-readable instructions stored in a memory (e.g., memory 1430) to cause the device to perform various functions (e.g., functions or tasks that support beam scanning during the on period of a DRX cycle).

[0202] The inter-site communication manager 1445 may manage communications with other base stations 105 and may include a controller or scheduler for controlling communications with UE 115 in collaboration with other base stations 105. For example, the inter-site communication manager 1445 may coordinate scheduling of transmissions to UE 115 for various interference mitigation techniques such as beamforming or joint transmission. In some examples, the inter-site communication manager 1445 may provide an X2 interface within an LTE / LTE-A wireless communication network technology to provide communications between base stations 105.

[0203] The code 1435 may include instructions for implementing various aspects of the present disclosure, including instructions for supporting wireless communications. The code 1435 may be stored in a non-transitory computer-readable medium such as a system memory or other type of memory. In some cases, the code 1435 may not be directly executable by the processor 1440, but may cause a computer (e.g., when compiled and executed) to perform the functions described herein.

[0204] Fig.15 A flow chart illustrating a method 1500 for supporting beam scanning during an on period of a DRX cycle according to aspects of the present disclosure is shown. The operations of the method 1500 may be implemented by a base station 105 or components thereof as described herein. For example, the operations of the method 1500 may be implemented by a base station 105 or components thereof as described herein. Figures 11 to 14 In some examples, the base station may execute an instruction set to control functional elements of the base station to perform the functions described herein. Additionally or alternatively, the base station may use dedicated hardware to perform various aspects of the functions described herein.

[0205] At 1505, a base station may transmit a first signal set to a UE operating in a DRX mode using a first beam set during a first on period of a first DRX cycle associated with the UE. Operation 1505 may be performed according to methods described herein. In some examples, the base station may transmit a first signal set to the UE using a first beam set during a first on period of a first DRX cycle associated with the UE operating in a DRX mode. Figures 11 to 14 The described beam management signal manager performs aspects of operation 1505.

[0206] At 1510, the base station may send a second wake-up signal set to the UE using a second beam set during a second on-period of a second DRX cycle associated with the UE, the second on-period being different from the first on-period. Operation 1510 may be performed according to the methods described herein. In some examples, the Figures 11 to 14 The described wake-up signal manager performs aspects of operation 1510 .

[0207] Fig.16 A flow chart illustrating a method 1600 for supporting beam scanning during an on period of a DRX cycle according to aspects of the present disclosure is shown. The operations of the method 1600 may be implemented by a base station 105 or components thereof as described herein. For example, the operations of the method 1600 may be implemented by a base station 105 or components thereof as described herein. Figures 11 to 14 In some examples, the base station may execute an instruction set to control functional elements of the base station to perform the functions described herein. Additionally or alternatively, the base station may use dedicated hardware to perform various aspects of the functions described herein.

[0208] At 1605, the base station may receive state information about the UE from the UE operation. Operation 1605 may be performed according to the methods described herein. In some examples, the base station may receive state information about the UE from the UE operation. Figures 11 to 14 The described state manager performs various aspects of operation 1605.

[0209] At 1610, the base station may identify the periodicity of the first signal set and the second wake-up signal set based on the reception state information. Operation 1610 may be performed according to the methods described herein. In some examples, the base station may identify the periodicity of the first signal set and the second wake-up signal set based on the reception state information. Figures 11 to 14 The described periodicity manager performs aspects of operation 1610.

[0210] At 1615, the base station may transmit a first signal set to the UE using a first beam set during a first on period of a first DRX cycle associated with the UE operating in the DRX mode based on the identification periodicity. Operation 1615 may be performed according to the methods described herein. In some examples, the base station may transmit a first signal set to the UE using a first beam set during a first on period of a first DRX cycle associated with the UE operating in the DRX mode. Figures 11 to 14 The described beam management signal manager performs aspects of operation 1615.

[0211] At 1620, the base station may send a second wake-up signal set to the UE using a second beam set during a second on period of a second DRX cycle associated with the UE based on the identification periodicity, the second on period being different from the first on period. Operation 1620 may be performed according to the methods described herein. In some examples, the base station may be configured as described in reference to Figures 11 to 14 The wake-up signal manager is described to perform aspects of operation 1620.

[0212] Fig.17 A flow chart illustrating a method 1700 for supporting beam scanning during an on period of a DRX cycle according to aspects of the present disclosure is shown. The operations of the method 1700 may be implemented by a UE 115 or a component thereof as described herein. For example, the operations of the method 1700 may be implemented by a UE 115 or a component thereof as described herein. Figures 7 to 10 In some examples, the UE may execute an instruction set to control the functional elements of the UE to perform the functions described herein. Additionally or alternatively, the UE may use dedicated hardware to perform various aspects of the functions described herein.

[0213] At 1705, the UE may receive a first set of signals using a first beam set during a first on period of a first DRX cycle associated with the UE operating in DRX mode. Operation 1705 may be performed according to methods described herein. In some examples, the UE may receive a first set of signals using a first beam set during a first on period of a first DRX cycle associated with the UE operating in DRX mode. Figures 7 to 10 The described beam management signal manager performs aspects of operation 1705.

[0214] At 1710, the UE may receive a second set of wake-up signals using a second beam set during a second on period of a second DRX cycle associated with the UE, the second on period being different from the first on period. Operation 1710 may be performed according to methods described herein. In some examples, the UE may receive a second set of wake-up signals using a second beam set during a second on period of a second DRX cycle associated with the UE, the second on period being different from the first on period. Figures 7 to 10 The described wake-up signal manager performs aspects of operation 1710 .

[0215] Fig.18 A flow chart illustrating a method 1800 for supporting beam scanning during an on period of a DRX cycle according to aspects of the present disclosure is shown. The operations of the method 1800 may be implemented by a UE 115 or a component thereof as described herein. For example, the operations of the method 1800 may be implemented by a UE 115 or a component thereof as described herein. Figures 7 to 10 In some examples, the UE may execute an instruction set to control the functional elements of the UE to perform the functions described herein. Additionally or alternatively, the UE may use dedicated hardware to perform various aspects of the functions described herein.

[0216] At 1805, the UE may send status information about the UE by the UE. Operation 1805 may be performed according to the methods described herein. In some examples, the UE may be sent by the UE as described in reference to Figures 7 to 10 The described state manager performs various aspects of operation 1805.

[0217] At 1810, the UE may identify the periodicity of the first signal set and the second wake-up signal set based on the transmission state information. Operation 1810 may be performed according to the methods described herein. In some examples, the UE may be configured as shown in FIG. Figures 7 to 10 The described periodic manager performs aspects of operation 1810.

[0218] At 1815, the UE may receive a first signal set using a first beam set during a first on period of a first DRX cycle associated with the UE operating in DRX mode based on the identification periodicity. Operation 1815 may be performed according to methods described herein. In some examples, the UE may receive a first signal set using a first beam set during a first on period of a first DRX cycle associated with the UE operating in DRX mode based on the identification periodicity. Figures 7 to 10 The described beam management signal manager performs aspects of operation 1815.

[0219] At 1820, the UE may receive a second set of wake-up signals using a second beam set during a second on period of a second DRX cycle associated with the UE based on the identification periodicity, the second on period being different from the first on period. Operation 1820 may be performed according to the methods described herein. In some examples, the UE may receive a second set of wake-up signals using a second beam set during a second on period of a second DRX cycle associated with the UE based on the identification periodicity, the second on period being different from the first on period. Figures 7 to 10The wake-up signal manager is described to perform aspects of operation 1820.

[0220] It should be noted that the methods described herein describe possible embodiments, and that operations and steps may be rearranged or otherwise modified, and other embodiments are possible. Furthermore, aspects from two or more methods may be combined.

[0221] The technology described herein can be used in various wireless communication systems, such as code division multiple access (CDMA), time division multiple access (TDMA), frequency division multiple access (FDMA), orthogonal frequency division multiple access (OFDMA), single carrier frequency division multiple access (SC-FDMA) and other systems. CDMA systems can implement radio technologies such as CDMA2000, Universal Terrestrial Radio Access (UTRA). CDMA2000 covers IS-2000, IS-95 and IS-856 standards. IS-2000 versions are commonly referred to as CDMA2000 1X, 1X, etc. IS-856 (TIA-856) is commonly referred to as CDMA2000 1xEV-DO, High Rate Packet Data (HRPD), etc. UTRA includes Wideband CDMA (WCDMA) and other variants of CDMA. TDMA systems can implement radio technologies such as Global System for Mobile Communications (GSM).

[0222] OFDMA systems can implement radio technologies such as Ultra Mobile Broadband (UMB), E-UTRA, Institute of Electrical and Electronics Engineers (IEEE) 802.11 (Wi-Fi), IEEE 802.16 (WiMAX), IEEE 802.20, Flash-Orthogonal Frequency Division Multiplexing (Flash-OFDM), etc. UTRA and E-UTRA are part of Universal Mobile Telecommunications System (UMTS). LTE, LTE-A and LTE-APro are UMTS versions using E-UTRA. UTRA, E-UTRA, UMTS, LTE, LTE-A, LTE-A Pro, NR and GSM are described in documents of an organization named "3rd Generation Partnership Project" (3GPP). CDMA2000 and UMB are described in documents from an organization named "3rd Generation Partnership Project 2" (3GPP2). The techniques described above can be used for the systems and radio technologies mentioned herein and other systems and radio technologies. Although aspects of LTE, LTE-A, LTE-A Pro, or NR systems may be described for example purposes, and LTE, LTE-A, LTE-A Pro, or NR terminology may be used in many of the descriptions, the techniques described herein may be applicable beyond LTE, LTE-A, LTE-A Pro, or NR applications.

[0223] A macro cell typically covers a relatively large geographic area (e.g., a radius of several kilometers) and may allow unrestricted access to a UE 115 that subscribes to a service from a network provider. A small cell may be associated with a base station 105 with lower power than a macro cell, and the small cell may operate in a frequency band that is the same or different (e.g., licensed, unlicensed, etc.) from the macro cell. According to various examples, a small cell may include a pico cell, a femto cell, and a micro cell. A pico cell, for example, may cover a small geographic area and may allow unrestricted access to a UE 115 that subscribes to a service from a network provider. A femto cell may also cover a small geographic area (e.g., a home) and may provide unrestricted access to a UE 115 associated with a femto cell (e.g., a UE 115 in a closed subscriber group (CSG), a UE 115 of a home user, etc.). An eNB for a macro cell may be referred to as a macro eNB. An eNB for a small cell may be referred to as a small cell eNB, a pico eNB, a femto eNB, or a home eNB. An eNB may support one or more (eg, two, three, four, etc.) cells and may also support communication using one or more component carriers.

[0224] The wireless communication system 100 or the systems described herein may support synchronous or asynchronous operation. For synchronous operation, the base stations 105 may have similar frame timing, and transmissions from different base stations 105 may be approximately aligned in time. For asynchronous operation, the base stations 105 may have different frame timing, and transmissions from different base stations 105 may not be aligned in time. The techniques described herein may be used for synchronous or asynchronous operation.

[0225] The information and signals described herein may be represented using any of a variety of different technologies and techniques. For example, data, instructions, commands, information, signals, bits, symbols, and chips that may be mentioned throughout the above description may be represented by voltage, current, electromagnetic waves, magnetic fields or particles, optical fields or particles, or any combination thereof.

[0226] The various illustrative blocks and modules described in conjunction with the disclosure herein may be implemented or performed with a general purpose processor, a DSP, an ASIC, an FPGA, or other programmable logic device (PLD), discrete gate or transistor logic, discrete hardware components, or any combination thereof designed to perform the functions described herein. A general purpose processor may be a microprocessor, but optionally, the processor may be any conventional processor, controller, microcontroller, or state machine. The processor may also be implemented as a combination of computing devices (e.g., a combination of a DSP and a microprocessor, a plurality of microprocessors, one or more microprocessors combined with a DSP core, or any other such configuration).

[0227] The functions described herein may be implemented in hardware, software executed by a processor, firmware, or any combination thereof. If implemented in software executed by a processor, the functions may be stored on or sent via a computer-readable medium as one or more instructions or codes. Other examples and implementations are within the scope of the present disclosure and the appended claims. For example, due to the nature of software, the functions described herein may be implemented using software executed by a processor, hardware, firmware, hard wiring, or any combination of these. Features that implement the functions may also be physically located in a variety of locations, including being distributed so that parts of the functions are implemented at different physical locations.

[0228] Computer-readable media include both non-transitory computer storage media and communication media (including any media that facilitates the transfer of computer programs from one place to another). Non-transitory storage media can be any available media that can be accessed by a general or special computer. For example and without limitation, non-transitory computer-readable media may include RAM, ROM, electrically erasable programmable read-only memory (EEPROM), compact disc (CD) ROM, flash memory, or other optical disc storage devices, magnetic disk storage devices or other magnetic storage devices, or any other non-transitory media that can be used to carry or store the required program code methods in the form of instructions or data structures and can be accessed by general or special computers, or general or special processors. In addition, any connection is appropriately referred to as a computer-readable medium. For example, if software is sent from a website, server or other remote source using coaxial cable, optical cable, twisted pair, digital subscriber line (DSL) or wireless technologies such as infrared, radio and microwave, coaxial cable, optical fiber cable, twisted pair, DSL or wireless technologies such as infrared, radio and microwave are included in the definition of the medium. Disk and disc, as used herein, includes CD, laser disc, optical disc, digital versatile disc (DVD), floppy disk and Blu-ray disc, where disks usually reproduce data magnetically, while discs reproduce data optically with the aid of lasers. Combinations of the above are also included within the scope of computer-readable media.

[0229] Moreover, as used herein (including in the claims), "or" as used in a list of items (e.g., a list of items beginning with a phrase such as "at least one of..." or "one or more") indicates an inclusive list, so that, for example, at least one of A, B, or C means A or B or C or AB or AC or BC or ABC (i.e., A and B and C). Moreover, as used herein, the phrase "based on" should not be interpreted as a reference to a closed set of conditions. For example, an exemplary step described as "based on condition A" can be based on both condition A and condition B without departing from the scope of the present disclosure. In other words, as used herein, the phrase "based on" should be interpreted in the same manner as the phrase "based at least in part on."

[0230] In the drawings, similar components or features may have the same reference number. In addition, various components of the same type may be distinguished by following the reference number with a dash and a second label that distinguishes the similar components. If only the first numerical reference number is used in the specification, the description applies to any of the similar components having the same first reference number, regardless of the second or other subsequent reference numbers.

[0231] The descriptions set forth herein in conjunction with the accompanying drawings describe exemplary configurations and do not represent all examples that may be implemented or within the scope of the claims. The term "exemplary" as used herein means "used as an example, paradigm, or illustration," rather than "preferred" or "superior to other examples." In order to provide an understanding of the described techniques, the detailed description includes specific details. However, these techniques may be practiced without these specific details. In some examples, well-known structures and devices are shown in block diagram form in order to avoid making the concepts of the described examples unclear.

[0232] The description herein is provided to enable those skilled in the art to make or use the present disclosure. Various modifications to the present disclosure will be apparent to those skilled in the art, and the general principles defined herein may be applied to other variations without departing from the scope of the present disclosure. Therefore, the present disclosure is not limited to the examples and designs described herein, but should be given the broadest scope consistent with the principles and novel features disclosed herein.

Claims

1. A method for wireless communication, comprising: During a first on period of a first DRX cycle associated with a user equipment (UE) operating in a discontinuous reception (DRX) mode, transmitting a first set of wake-up signals to the UE using a first beam set, the first beam set being selected as part of a first beam scanning procedure during a first off period of the first DRX cycle; as well as During a second on period of a second DRX cycle associated with the UE, a second wake-up signal set is sent to the UE using a second beam set, and the second beam set is selected as part of a second beam scanning procedure during a second off period of the second DRX cycle, and the second on period is different from the first on period.

2. The method according to claim 1, further comprising: State information regarding the UE is received from the UE, wherein sending the first set of wake-up signals is based at least in part on receiving the state information.

3. The method according to claim 2, further comprising: A periodicity of the first set of wake-up signals and the second set of wake-up signals is identified based at least in part on receiving the state information.

4. The method according to claim 1, wherein: The first wake-up signal set is sent once in every N DRX on cycles, where N is an integer equal to or greater than 2.

5. The method according to claim 4, wherein: The second wake-up signal set is sent during the remaining DRX on cycles except the DRX on cycle during which the first wake-up signal set is sent.

6. The method according to claim 1, further comprising: Randomizing an order of the first beam sets transmitted across one or more cells during the first on period of the first DRX cycle, wherein transmitting the first wake-up signal set is based at least in part on randomizing the order.

7. The method according to claim 6, wherein: The randomization of the first beam set is based at least in part on a cell identifier, a UE identifier, or a UE group identifier, or a combination thereof.

8. The method according to claim 1, further comprising: Perform a third beam scanning procedure during a third on period of a third DRX cycle associated with the UE, and avoid sending a third wake-up signal set during a third off period of the third DRX cycle based at least in part on sending the first wake-up signal set and the second wake-up signal set.

9. The method according to claim 1, further comprising: Based at least in part on sending the second set of wake-up signals during the second on period of the second DRX cycle, sending the first set of wake-up signals once during every M DRX off periods, where M is a positive integer.

10. The method according to claim 8, further comprising: Avoid sending a wake-up signal set during an off period of a DRX cycle adjacent to the third DRX cycle.

11. The method according to claim 1, further comprising: The second set of wake-up signals is sent during the first on period of the first DRX cycle based at least in part on sending the first set of wake-up signals during the first on period of the first DRX cycle.

12. The method according to claim 1, further comprising: Encode wake-up information into at least one reference signal in the first wake-up signal set sent during the first on period of the first DRX cycle, wherein sending the first wake-up signal set during the first on period of the first DRX cycle is at least partially based on encoding the wake-up information into the at least one reference signal.

13. The method according to claim 1, further comprising: The first DRX cycle is identified as a DRX cycle in which the first set of wake-up signals is sent during an on period of the DRX cycle, wherein sending the first set of wake-up signals is based at least in part on identifying the first DRX cycle.

14. The method according to claim 1, wherein: The first wake-up signal set is sent together with a first gNB beam set, and the second wake-up signal set is sent together with a second gNB beam set.

15. The method according to claim 1, wherein: The first wake-up signal set includes a channel state information reference signal CSI-RS, a primary synchronization signal PSS, a secondary synchronization signal SSR, a demodulation reference signal DMRS of a physical broadcast channel PBCH, or a tracking reference signal or a combination thereof.

16. The method according to claim 1, wherein: The first wake-up signal set includes a reference signal set.

17. The method according to claim 1, wherein: The first wake-up signal set includes a physical downlink control channel (PDCCH) having one or more cyclic redundancy check (CRC) bits scrambled using a radio network temporary identifier (RNTI) associated with the UE.

18. The method according to claim 1, wherein: The UE is in a connected discontinuous reception C-DRX mode.

19. A method for wireless communication, comprising: receiving, during a first on period of a first DRX cycle associated with a user equipment (UE) operating in a discontinuous reception (DRX) mode, a first set of wake-up signals by the UE using a first beam set, the first beam set being selected as part of a first beam scanning procedure during a first off period of the first DRX cycle; as well as During a second on period of a second DRX cycle associated with the UE, a second wake-up signal set is received by the UE using a second beam set, the second beam set being selected as part of a second beam scanning procedure during a second off period of the second DRX cycle, the second on period being different from the first on period.

20. The method according to claim 19, further comprising: State information about the UE is received by the UE, wherein receiving the first set of wake-up signals is based at least in part on sending the state information.

21. The method according to claim 20, further comprising: A periodicity of the first set of wake-up signals and the second set of wake-up signals is identified based at least in part on sending the status information.

22. The method according to claim 19, wherein: The first wake-up signal set is received once in every N DRX on cycles, where N is an integer equal to or greater than 2.

23. The method according to claim 22, wherein: The second wake-up signal set is received during the remaining DRX on cycles except the DRX on cycle during which the first wake-up signal set is sent.

24. The method of claim 19, further comprising: Based at least in part on receiving the second set of wake-up signals during the second on period of the second DRX cycle, the first set of wake-up signals is received once during every M DRX off periods, where M is a positive integer.

25. The method of claim 19, further comprising: A third wake-up signal set is received during a third on period of a third DRX cycle, and the second wake-up signal set is received during the first on period of the first DRX cycle based at least in part on receiving the first wake-up signal set and the second wake-up signal set.

26. The method of claim 19, further comprising: Identify wake-up information encoded into at least one reference signal in the first wake-up signal set transmitted during the first on period of the first DRX cycle.

27. The method of claim 19, wherein: The first wake-up signal set includes a physical downlink control channel (PDCCH) having one or more cyclic redundancy check (CRC) bits scrambled using a radio network temporary identifier (RNTI) associated with the UE.

28. The method of claim 19, wherein: The first wake-up signal set includes a channel state information reference signal CSI-RS, a primary synchronization signal PSS, a secondary synchronization signal SSR, a demodulation reference signal DMRS of a physical broadcast channel PBCH, or a tracking reference signal or a combination thereof.

29. An apparatus for wireless communication, comprising: processor, a memory in electronic communication with the processor; as well as instructions stored in the memory and executable by the processor to cause the apparatus to: During a first on period of a first DRX cycle associated with a user equipment (UE) operating in a discontinuous reception (DRX) mode, transmitting a first set of wake-up signals to the UE using a first beam set, the first beam set being selected as part of a first beam scanning procedure during a first off period of the first DRX cycle; as well as During a second on period of a second DRX cycle associated with the UE, a second wake-up signal set is sent to the UE using a second beam set, and the second beam set is selected as part of a second beam scanning procedure during a second off period of the second DRX cycle, and the second on period is different from the first on period.

30. An apparatus for wireless communication, comprising: processor, a memory in electronic communication with the processor; as well as instructions stored in the memory and executable by the processor to cause the apparatus to: receiving, during a first on period of a first DRX cycle associated with a user equipment (UE) operating in a discontinuous reception (DRX) mode, a first set of wake-up signals by the UE using a first beam set, the first beam set being selected as part of a first beam scanning procedure during a first off period of the first DRX cycle; as well as During a second on period of a second DRX cycle associated with the UE, a second wake-up signal set is received by the UE using a second beam set, the second beam set being selected as part of a second beam scanning procedure during a second off period of the second DRX cycle, the second on period being different from the first on period.

31. A non-transitory computer-readable medium storing code for wireless communication, the code comprising instructions executable by a processor to: During a first on period of a first DRX cycle associated with a user equipment (UE) operating in a discontinuous reception (DRX) mode, transmitting a first set of wake-up signals to the UE using a first beam set, the first beam set being selected as part of a first beam scanning procedure during a first off period of the first DRX cycle; and During a second on period of a second DRX cycle associated with the UE, a second wake-up signal set is sent to the UE using a second beam set, and the second beam set is selected as part of a second beam scanning procedure during a second off period of the second DRX cycle, and the second on period is different from the first on period.

32. A non-transitory computer-readable medium storing code for wireless communication, the code comprising instructions executable by a processor to: receiving, during a first on period of a first DRX cycle associated with a user equipment (UE) operating in a discontinuous reception (DRX) mode, a first set of wake-up signals by the UE using a first beam set, the first beam set being selected as part of a first beam scanning procedure during a first off period of the first DRX cycle; and During a second on period of a second DRX cycle associated with the UE, a second wake-up signal set is received by the UE using a second beam set, the second beam set being selected as part of a second beam scanning procedure during a second off period of the second DRX cycle, the second on period being different from the first on period.

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