Active wake-up beam management for connected mode discontinuous reception (C-DRX) operation

Abstract

The present disclosure provides active wake-up beam management for connected mode discontinuous reception (C-DRX) operation. For example, a user equipment (UE) monitors one or more received synchronization signal blocks (SSBs) or reference signals associated with a wake-up beam set from a network entity. The UE may further determine that the wake-up beam set satisfies a distress condition. Additionally, the UE may transmit a distress indication to the network entity based on determining that the wake-up beam set satisfies the distress condition. The various aspects described herein also provide a network entity that receives a distress indication from the UE in response to transmitting the wake-up beam set, and transmits a subsequent wake-up beam set to the UE, the subsequent wake-up beam set having at least one wake-up beam that is not included in the wake-up beam set.

Description

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application claims the benefit of U.S. Provisional Application No. 62 / 711,186, filed on July 27, 2018, entitled “PROACTIVE WAKE-UP BEAM MANAGEMENT FOR CONNECTED MODE DISCONTINUOUS RECEPTION (C-DRX) OPERATION,” and U.S. Patent Application No. 16 / 522,013, filed on July 25, 2019, entitled “PROACTIVE WAKE-UP BEAM MANAGEMENT FOR CONNECTED MODE DISCONTINUOUS RECEPTION (C-DRX) OPERATION,” both of which are expressly incorporated herein by reference in their entirety.

[0003] background

[0004] Aspects of the present disclosure relate generally to wireless communication networks, and more particularly to active wake-up beam management for connected mode discontinuous reception (C-DRX) operation.

[0005] Wireless communication networks are widely deployed to provide various types of communication content such as voice, video, packet data, messaging, broadcast, etc. These systems may be multiple-access systems capable of supporting communication with multiple users by sharing the available system resources (e.g., time, frequency, and power). Examples of such multiple-access systems include code division multiple access (CDMA) systems, time division multiple access (TDMA) systems, frequency division multiple access (FDMA) systems, orthogonal frequency division multiple access (OFDMA) systems, and single-carrier frequency division multiple access (SC-FDMA) systems.

[0006] These multiple access technologies have been adopted in various telecommunication standards to provide common protocols that enable different wireless devices to communicate at city, national, regional, and even global levels. For example, the fifth generation (5G) wireless communication technology, which may be referred to as new radio (NR), is designed to expand and support diverse usage scenarios and applications relative to current mobile network generations. On the one hand, 5G communication technology may include: enhanced mobile broadband involving human-centric use cases for accessing multimedia content, services, and data; ultra-low latency (ULL) and / or ultra-reliable low latency communication (URLLC) with certain specifications on latency and reliability; and massive machine type communications, which may allow a very large number of connected devices and the transmission of relatively small amounts of non-delay-sensitive information. However, as the demand for mobile broadband access continues to grow, further improvements to NR communication technology and super-NR technology may be expected.

[0007] For example, for various communication technologies (such as but not limited to LTE and NR), actively managing wake-up beams may provide desired speed or customization levels for efficient operation. Thus, improvements to wireless communication operations may be desirable.

[0008] Overview

[0009] A brief summary of one or more aspects is given below to provide a basic understanding of such aspects. This summary is not an exhaustive overview of all conceived aspects, and is neither intended to identify the key or critical elements of all aspects nor to define the scope of any or all aspects. Its sole purpose is to present some concepts of one or more aspects in a simplified form as a prelude to a more detailed description that will be presented later.

[0010] In one aspect, the present disclosure includes a method for wireless communication at a user equipment (UE). The method may include monitoring one or more synchronization signal blocks (SSBs) or reference signals associated with a wake-up beam set from a network entity. The method may further include determining that the wake-up beam set satisfies a distress condition. Additionally, the method may include transmitting a distress indication to the network entity based on determining that the wake-up beam set satisfies the distress condition.

[0011] In another aspect, the present disclosure includes a UE for wireless communication, the UE comprising: a memory including one or more instructions, and at least one processor in communication with the memory, the at least one processor configured to execute the one or more instructions. The at least one processor may be configured to monitor one or more synchronization signal blocks (SSBs) or reference signals associated with a wake-up beam set from a network entity. The at least one processor may be further configured to determine that the wake-up beam set meets a distress condition. The at least one processor may be further configured to transmit a distress indication to the network entity based on determining that the wake-up beam set meets the distress condition.

[0012] In an additional aspect, the present disclosure includes a UE for wireless communication. The UE may include means for monitoring one or more synchronization signal blocks (SSBs) or reference signals associated with a wake-up beam set from a network entity. The UE may further include means for determining that the wake-up beam set satisfies a distress condition. Additionally, the UE may include means for transmitting a distress indication to the network entity based on determining that the wake-up beam set satisfies the distress condition.

[0013] In yet another aspect, the present disclosure includes a non-transitory computer-readable medium storing computer code executable by a processor for wireless communication at a UE. The computer-readable medium may include: code for monitoring one or more synchronization signal blocks (SSBs) or reference signals associated with a wake-up beam set from a network entity. The computer-readable medium may further include code for determining that the wake-up beam set satisfies a distress condition. The computer-readable medium may further include code for transmitting a distress indication to the network entity based on determining that the wake-up beam set satisfies the distress condition.

[0014] In one aspect, the present disclosure includes a method for wireless communication at a network entity. The method may include transmitting a wake-up beam set associated with one or more SSBs or reference signals to a UE. The method may further include: receiving a distress indication from the UE in response to transmitting the wake-up beam set. Additionally, the method may include transmitting a subsequent wake-up beam set to the UE, the subsequent wake-up beam set having at least one wake-up beam not included in the wake-up beam set.

[0015] In another aspect, the present disclosure includes a network entity for wireless communication, the network entity comprising: a memory including one or more instructions, and at least one processor in communication with the memory, the at least one processor configured to execute the one or more instructions. The at least one processor may be configured to transmit a wake-up beam set associated with one or more SSBs or reference signals to a UE. The at least one processor may be further configured to receive a distress indication from the UE in response to transmitting the wake-up beam set. The at least one processor may be further configured to transmit a subsequent wake-up beam set to the UE, the subsequent wake-up beam set having at least one wake-up beam not included in the wake-up beam set.

[0016] In an additional aspect, the present disclosure includes a network entity for wireless communication. The network entity may include means for transmitting a wake-up beam set associated with one or more SSBs or reference signals to a UE. The network entity may further include means for receiving a distress indication from the UE in response to transmitting the wake-up beam set. The network entity may further include means for transmitting a subsequent wake-up beam set to the UE, the subsequent wake-up beam set having at least one wake-up beam not included in the wake-up beam set.

[0017] In yet another aspect, the present disclosure includes a non-transitory computer-readable medium storing computer code executable by a processor for wireless communication at a network entity, including code for transmitting a wake-up beam set associated with one or more SSBs or reference signals to a UE. The computer-readable medium may further include code for receiving a distress indication from the UE in response to transmitting the wake-up beam set. Additionally, the computer-readable medium may include code for transmitting a subsequent wake-up beam set to the UE, the subsequent wake-up beam set having at least one wake-up beam not included in the wake-up beam set.

[0018] To achieve the foregoing and related ends, the one or more aspects include the features fully described below and particularly pointed out in the claims. The following description and drawings set forth in detail certain illustrative features of the one or more aspects. However, these features are merely indicative of several of the various ways in which the principles of the various aspects may be employed, and this description is intended to cover all such aspects and their equivalents. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The disclosed aspects will be described below in conjunction with the accompanying drawings, which are provided to illustrate rather than limit the disclosed aspects, wherein like reference numerals designate like elements, and wherein:

[0021] Figure 1is an example schematic diagram of an example of a wireless communication network including at least one base station having a wake-up beam component and at least one user equipment (UE) having a wake-up beam management component;

[0022] Figure 2A is an example conceptual diagram of active wake-up beam management for connected mode discontinuous reception (C-DRX) operation;

[0023] Figure 2B is an example conceptual diagram of the mapping of uplink resources to each wake-up beam;

[0024] Figure 3 is a flow chart of an example of a method of performing wireless communication at a UE;

[0025] Figure 4 is a flow chart of another example of a method of wireless communication at a network entity;

[0026] Figure 5 yes Figure 1 A schematic diagram of example components of a UE; and

[0027] Figure 6 yes Figure 1 A schematic diagram of example components of a base station.

[0028] Detailed Description

[0029] Various aspects are now described with reference to the accompanying drawings. In the following description, numerous specific details are set forth for explanation purposes to provide a thorough understanding of one or more aspects. However, it is apparent that such aspects may be practiced without these specific details. In addition, the term "component" as used herein may be one of the parts constituting a system, may be hardware, firmware and / or software stored on a computer-readable medium, and may be divided into other components.

[0030] The present disclosure generally relates to active wake-up beam management for connected mode discontinuous reception (C-DRX) operation. For example, in some wireless communication networks that employ certain radio access technologies (e.g., 5G / New Radio (NR)), a UE may enter a C-DRX off state to improve power consumption. During the C-DRX off state, a network entity (e.g., a base station such as a gNB) may transmit a wake-up signal or indication to the UE to trigger the UE to transition from the C-DRX off state to the C-DRX on state. Specifically, the network entity may transmit a wake-up beam set to the UE. However, in some aspects (such as long DRX cycles or high UE mobility scenarios), beam degradation may occur, resulting in the UE being unable to receive and / or detect at least a portion of the wake-up beam set from the network entity. When a beam failure occurs, the UE may immediately report the failure to the network entity and request a new beam set by initiating a beam failure recovery procedure. The beam failure recovery procedure may include: transmitting a beam failure recovery request from the UE to a network entity, receiving a response from the network entity, and receiving a new beam configuration (Radio Resource Connection (RRC)) from the network entity. However, the aforementioned procedure introduces a long latency. Therefore, it may be desirable to actively manage the wake-up beam at the UE and / or the network entity during C-DRX operation.

[0031] Thus, in one aspect, aspects of the present invention provide a UE that monitors one or more received SSBs or reference signals associated with a wake-up beam set from a network entity. The UE may further determine that the wake-up beam set satisfies a distress condition. Additionally, the UE transmits a distress indication to the network entity based on determining that the wake-up beam set satisfies the distress condition.

[0032] Aspects of the present invention provide a network entity that transmits a wake-up beam set associated with one or more SSBs or reference signals to a UE. The network entity may further receive a distress indication from the UE in response to transmitting the wake-up beam set. The network entity may additionally transmit a subsequent wake-up beam set to the UE, the subsequent wake-up beam set having at least one different wake-up beam that is not included in the wake-up beam set.

[0033] Additional features of various aspects of the invention are described below with reference to Figure 1-6 Let's describe it in more detail.

[0034] It should be noted that the technology described herein can be used for various wireless communication networks, such as CDMA, TDMA, FDMA, OFDMA, SC-FDMA and other systems. The terms "system" and "network" are often used interchangeably. A CDMA system 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 0 and A 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. A TDMA system can implement radio technologies such as Global System for Mobile Communications (GSM). OFDMA systems can implement technologies such as Ultra Mobile Broadband (UMB), Evolved UTRA (E-UTRA), IEEE 802.11 (Wi-Fi), IEEE 802.16 (WiMAX), IEEE 802.20, Flash-OFDM TM Radio technologies such as LTE and UTRA. UTRA and E-UTRA are part of the Universal Mobile Telecommunications System (UMTS). 3GPP Long Term Evolution (LTE) and Advanced LTE (LTE-A) are new UMTS versions that use E-UTRA. UTRA, E-UTRA, UMTS, LTE, LTE-A, and GSM are described in documents from an organization called the "Third Generation Partnership Project" (3GPP). CDMA2000 and UMB are described in documents from an organization called the "Third Generation Partnership Project 2" (3GPP2). The techniques described herein can be used for the systems and radio technologies mentioned above as well as for other systems and radio technologies, including cellular (e.g., LTE) communications on shared radio frequency spectrum bands. However, the following description describes an LTE / LTE-A system for example purposes, and LTE terminology is used in most of the following descriptions, but these techniques can also be applied beyond LTE / LTE-A applications (e.g., to 5G networks or other next generation communication systems).

[0035] The following description provides examples and does not limit the scope, applicability, or examples set forth in the claims. Changes may be made to the functions and arrangements of the elements discussed without departing from the scope of the present disclosure. Various examples may appropriately omit, substitute, or add various procedures or components. For example, the described methods may be performed in an order different from that described, and various steps may be added, omitted, or combined. In addition, features described with reference to some examples may be combined in other examples.

[0036] Reference Figure 1According to various aspects of the present disclosure, an example wireless communication network 100 may include: at least one base station 105 is in communication with a UE 110. The wireless communication network 100 (also known as a wireless wide area network (WWAN)) includes a base station 105, a UE 110, an evolved packet core (EPC) 160, and a 5G core (5GC) 190. The base station 105 may include a macro cell (a high-power cellular base station) and / or a small cell (a low-power cellular base station). A macro cell includes a base station. A small cell includes a femto cell, a pico cell, and a micro cell.

[0037] The UE 110 may include a wake-up beam management component 150 that is configured to actively manage a wake-up beam set 152 and / or any subsequent wake-up beam 158 received from the base station 105 to reduce a waiting time between potential beam failures from a current wake-up beam set (e.g., wake-up beam 152) and a subsequent wake-up beam set 158.

[0038] Specifically, the wake-up beam management component 150 may be configured to monitor periodic SSBs and / or channel state information reference signals (CSI-RSs) to find a wake-up beam set 152 from the base station 105 or to monitor periodic SSBs and / or CSI-RSs associated with the wake-up beam set 152. During monitoring, the wake-up beam management component 150 may detect or otherwise determine that a number of wake-up beams from the wake-up beam set 152 have fallen below a quality threshold, such that communication of a wake-up indication may not be possible on resources associated with the corresponding wake-up beams. For example, the wake-up beam set 152 may include four wake-up beams, each associated with at least one uplink resource. During a C-DRX off state or period, the wake-up beam management component 150 may determine that a number of wake-up beams (e.g., two wake-up beams) forming the wake-up beam set 152 have fallen below a quality threshold based on, for example, the reference signal received power (RSRP) of the wake-up beams (e.g., two wake-up beams) failing to meet the quality threshold. Such a failure may trigger a distress condition 154 at the UE 110, whereby the wake-up beam management component 150 may transmit a distress indication 156 to the base station 105 at a subsequent C-DRX on duration to notify the base station 105 of a failed wake-up beam from the wake-up beam set 152. The distress indication 156 may identify a failed wake-up beam from the wake-up beam set 152 and / or trigger the base station 105 to transmit a subsequent wake-up beam set 158 ​​that does not include or ignores the failed wake-up beam from the wake-up beam set 152.

[0039] The base station 105 may have a modem 160 including a wake-up beam component 170 configured to transmit one or more wake-up beam sets based on the qualitative status of the wake-up beams as identified by the UE 110. That is, the wake-up beam component 170 may adjust the composition of the wake-up beam set 152 based on the distress indication 156 received from the UE 105, the distress indication identifying one or more wake-up beams in the wake-up beam set 152 that fail to meet a quality threshold. Subsequently, the wake-up beam component 170 may transmit or provide a subsequent wake-up beam 158 to the UE 110 that does not include the failed wake-up beam from the wake-up beam set 152.

[0040] The wireless communication network 100 may include one or more base stations 105, one or more UEs 110, and a core network 115 (e.g., an evolved packet core (EPC) and / or a 5GC). The base stations 105 configured for 4G LTE (collectively referred to as the Evolved Universal Mobile Telecommunications System (UMTS) Terrestrial Radio Access Network (E-UTRAN)) may interface with the EPC 160 via a backhaul link 132 (e.g., an S1 interface). The base stations 105 configured for 5G NR (collectively referred to as the Next Generation RAN (NG-RAN)) may interface with the 5GC 190 via a backhaul link 184. In addition to other functions, the base station 105 may also perform one or more of the following functions: delivery of user data, radio channel encryption and decryption, integrity protection, header compression, mobility control functions (e.g., switching, dual connectivity), inter-cell interference coordination, connection establishment and release, load balancing, distribution of non-access stratum (NAS) messages, NAS node selection, synchronization, radio access network (RAN) sharing, multimedia broadcast multicast service (MBMS), subscriber and equipment tracking, RAN information management (RIM), paging, positioning, and delivery of alert messages. The base station 102 may communicate with each other directly or indirectly (e.g., through the EPC 160 or 5GC 190) on a backhaul link 134 (e.g., an X2 interface). The backhaul link 134 may be wired or wireless.

[0041] Base stations 105 may communicate wirelessly with UE 110. Each base station 105 may provide communication coverage for a respective geographic coverage area 110. There may be overlapping geographic coverage areas 130. For example, a small cell 105' may have a coverage area 130' that overlaps with the coverage area 110 of one or more macro base stations 105. A network including both small cells and macro cells may be referred to as a heterogeneous network. A heterogeneous network may also include a home evolved B node (eNB) (HeNB), which may provide services to a restricted group referred to as a closed subscriber group (CSG). A communication link 125 between a base station 105 and a UE 104 may include an uplink (UL) (also referred to as a reverse link) transmission from the UE 110 to the base station 105 and / or a downlink (DL) (also referred to as a forward link) transmission from the base station 105 to the UE 110. The communication link 125 may use multiple-input multiple-output (MIMO) antenna technology, including spatial multiplexing, beamforming, and / or transmit diversity. These communication links may be through one or more carriers. The base station 105 / UE 110 may use spectrum of up to Y MHz (e.g., 5, 10, 15, 20, 100, 400 MHz, etc.) bandwidth for each carrier allocated in a carrier aggregation for transmission in each direction for a total of up to Yx MHz (x component carriers). The carriers may or may not be adjacent to each other. The allocation of carriers may be asymmetric with respect to DL and UL (e.g., more or fewer carriers may be allocated to DL compared to UL). The component carrier may include a primary component carrier and one or more secondary component carriers. The primary component carrier may be referred to as a primary cell (PCell), and the secondary component carrier may be referred to as a secondary cell (SCell).

[0042] Some UEs 105 may communicate with each other using a device-to-device (D2D) communication link 198. The D2D communication link 198 may use DL / UL WWAN spectrum. The D2D communication link 158 may use one or more sidelink channels, such as a physical sidelink broadcast channel (PSBCH), a physical sidelink discovery channel (PSDCH), a physical sidelink shared channel (PSSCH), and a physical sidelink control channel (PSCCH). D2D communications may be through a variety of wireless D2D communication systems, such as, for example, FlashLinQ, WiMedia, Bluetooth, ZigBee, Wi-Fi based on IEEE 802.11 standards, LTE, or NR.

[0043] The small cell 105' may operate in licensed and / or unlicensed spectrum. When operating in unlicensed spectrum, the small cell 105' may employ NR and use the same 5 GHz unlicensed spectrum as used by Wi-Fi access points. The small cell 105' employing NR in the unlicensed spectrum may boost the coverage of the access network and / or increase the capacity of the access network.

[0044] Whether it is a small cell 105' or a large cell (e.g., a macro base station), the base station 105 may include an eNB, a g B node (gNB), or other types of base stations. Some base stations (such as gNBs) may operate in traditional sub-6 GHz spectrum, millimeter wave (mmW) frequencies, and / or near mmW frequencies to communicate with UE 110. When the gNB 180 operates in mmW or near mmW frequencies, the gNB 180 may be referred to as a mmW base station. Extremely high frequency (EHF) is part of the RF in the electromagnetic spectrum. EHF has a range of 30 GHz to 300 GHz and a wavelength between 1 mm and 10 mm. The radio waves in this band may be referred to as millimeter waves. Near mmW can be extended down to a frequency of 3 GHz and a wavelength of 100 mm. The super high frequency (SHF) band extends between 3 GHz and 30 GHz, which is also referred to as centimeter waves. Communications using mmW / near mmW radio frequency bands have extremely high path loss and short range. The mmW base stations may utilize beamforming with the UE 104 to compensate for the extremely high path loss and short range.

[0045] The EPC 160 may include a mobility management entity (MME) 162, other MMEs 164, a serving gateway 166, a multimedia broadcast multicast service (MBMS) gateway 168, a broadcast multicast service center (BM-SC) 170, and a packet data network (PDN) gateway 172. The MME 162 may be in communication with a home subscriber server (HSS) 174. The MME 162 is a control node that handles signaling between the UE 110 and the EPC 160. In general, the MME 162 provides bearer and connection management. All user Internet Protocol (IP) packets are delivered through the serving gateway 166, which itself is connected to the PDN gateway 172. The PDN gateway 172 provides UE IP address allocation and other functions. The PDN gateway 172 and the BM-SC 170 are connected to IP services 176. The IP services 176 may include the Internet, an intranet, an IP multimedia subsystem (IMS), a PS streaming service, and / or other IP services. The BM-SC 170 may provide functionality for MBMS user service provisioning and delivery. The BM-SC 170 may serve as an entry point for content provider MBMS transmissions, may be used to authorize and initiate MBMS bearer services within a public land mobile network (PLMN), and may be used to schedule MBMS transmissions. The MBMS gateway 168 may be used to distribute MBMS traffic to base stations 105 belonging to a multicast broadcast single frequency network (MBSFN) area that broadcasts a specific service, and may be responsible for session management (start / stop) and for collecting eMBMS-related charging information.

[0046] 5GC 190 may include access and mobility management function (AMF) 192, other AMF 193, session management function (SMF) 194, and user plane function (UPF) 195. AMF 192 may be in communication with unified data management (UDM) 196. AMF 192 is a control node that handles signaling between UE 110 and 5GC 190. In general, AMF 192 provides QoS flow and session management. All user Internet Protocol (IP) packets are delivered through UPF 195. UPF 195 provides UE IP address allocation and other functions. UPF 195 is connected to IP service 197. IP service 197 may include the Internet, intranet, IP multimedia subsystem (IMS), PS streaming service, and / or other IP services.

[0047] A base station may also be referred to as a gNB, a Node B, an evolved Node B (eNB), an access point, a base transceiver station, a radio base station, a radio transceiver, a transceiver function, a basic service set (BSS), an extended service set (ESS), a transmission reception point (TRP), or some other suitable term. The base station 105 provides an access point to the EPC 160 or the 5GC 190 for the UE 110. Examples of UE 110 include a cellular phone, a smart phone, a Session Initiation Protocol (SIP) phone, a laptop, a personal digital assistant (PDA), a satellite radio, a global positioning system, a multimedia device, a video device, a digital audio player (e.g., an MP3 player), a camera, a game console, a tablet device, a smart device, a wearable device, a vehicle, an electric meter, a gas pump, a large or small kitchen appliance, a health care device, an implant, a sensor / actuator, a display, or any other similar functional device. Some UEs 104 may be referred to as IoT devices (e.g., parking meters, gas pumps, ovens, vehicles, heart monitors, etc.). UE 110 may also be referred to as a station, a mobile station, a subscriber station, a mobile unit, a subscriber unit, a wireless unit, a remote unit, a mobile device, a wireless device, a wireless communication device, a remote device, a mobile subscriber station, an access terminal, a mobile terminal, a wireless terminal, a remote terminal, a handset, a user agent, a mobile client, a client, or some other suitable terminology.

[0048] Figure 2Ais a conceptual diagram of a C-DRX timeline 200 illustrating active wake-up beam management. Specifically, at 202, during a C-DRX off period of a C-DRX cycle 220, a UE (such as UE 110) may wake up and monitor periodic SSBs or CSI-RS that are quasi-co-located (QCL) with configured N wake-up beams (e.g., N=4) (forming a wake-up beam set 152). For example, UE 110 may monitor the quality of each wake-up beam by measuring the RSRP of each wake-up beam of the wake-up beam set 152 and comparing it to a corresponding threshold (e.g., a quality threshold). In some aspects, UE 110 may also perform receive beam refinement concurrently. At 204, UE 110 may detect a distress condition 154 that causes less than K (e.g., which may be configurable, 0<K<N) beams to have characteristics (e.g., RSRP) above a quality threshold. In some aspects, a timer or counter may be used to detect the distress condition 154. Specifically, in one aspect, if the wake-up beam quality of any one of the wake-up beams in the wake-up beam set 152 drops below a quality threshold for several consecutive times, the wake-up beam may be considered lost and identified as a failed beam. In addition, if the wake-up beam quality of any one of the wake-up beams in the wake-up beam set 152 drops a threshold number of times within a configured time period, the wake-up beam may be considered lost and identified as a failed beam. Additionally, if less than K wake-up beams are considered valid or of sufficient quality (e.g., more than NK beams are lost), a distress condition 154 may be declared. However, in some aspects, a radio link failure may also occur. For example, if all N wake-up beams are lost before the UE 110 transmits at least one distress indication 156, the UE 110 may declare a radio link failure and initiate an initial access procedure to establish a connection again.

[0049] At 206, as a result of detecting the distress condition 152, the UE 110 may send a distress indication 156 to the base station 105 during the next C-DRX On duration of the C-DRX cycle 222. In some aspects, upon detecting the distress condition 154, the UE 110 may wake up for the next C-DRX On duration of the C-DRX cycle 222 to send the distress indication 156, regardless of whether a wake-up signal is present. If the UE 110 receives a wake-up signal after detecting the distress condition 154, the UE 110 may wake up for the next C-DRX On duration, send the distress indication 156, perform a beam recovery procedure, and remain on during the remainder of the C-DRX On duration. In some aspects, if the UE 110 does not receive a wake-up signal after detecting the distress condition 154, the UE 110 may return to sleep after the beam recovery procedure is completed. Upon receiving the distress indication 156, the base station 105 may perform a partial beam recovery procedure. After completing the beam recovery procedure, at 208 , a new wake-up beam set may be assigned to the UE 110 and used for the next C-DRX cycle 222 .

[0050] Figure 2B 250 is a conceptual diagram of a mapping of uplink resources to each wake-up beam from a wake-up beam set 152. Specifically, each wake-up beam from a wake-up beam set 152 may have an associated uplink resource. In some aspects, the uplink resource may correspond to a time-frequency resource on which the UE 110 may send a distress indication 156. For example, the uplink resource may correspond to a physical uplink control channel (PUCCH) resource (e.g., the distress indication 156 may be a PUCCH message), a sounding reference signal (SRS) resource, and / or a random access channel (RACH) resource. However, the precise uplink resource on which the UE 110 transmits the distress indication 156 may be mapped to a healthy wake-up beam (e.g., a quality exceeding a threshold). That is, the UE 110 may transmit the distress indication 156 on at least one uplink resource associated with a wake-up beam that meets a quality threshold. In some aspects, if there is more than one healthy wake-up beam, the UE 110 may send the distress indication 156 on multiple uplink resources (e.g., each uplink resource associated with a healthy wake-up beam). Additionally, the distress indication may include information about the failed wake-up beam. In some aspects, the base station 105 may detect the failed beam from the resources on which the distress indication 156 was received from the UE 110.

[0051] Reference Figure 3 For example, a wireless communication method 200 of operating a UE (such as UE 110) according to various aspects described herein actively manages wake-up beams during C-DRX operation according to one or more actions defined herein.

[0052] At block 302, the method 300 may monitor one or more SSBs or reference signals associated with a wake-up beam set from a network entity. For example, as described herein, the modem 140 of the UE 110 may execute the wake-up beam management component 150 to monitor one or more SSBs or reference signals to find a wake-up beam set 152 from a network entity (e.g., the base station 105) or monitor one or more SSBs or reference signals associated with the wake-up beam set 152.

[0053] In some aspects, monitoring one or more SSBs or reference signals may include monitoring during a C-DRX off period.

[0054] In some aspects, one or more SSBs or reference signals and the wake-up beam set 152 are QCL.

[0055] At block 304, method 300 can determine that the wake-up beam set satisfies the distress condition. For example, modem 140 of UE 110 can execute wake-up beam management component 150 to determine that wake-up beam set 152 satisfies the distress condition 154 as described herein.

[0056] In some aspects, determining that the wake-up beam set 152 satisfies the distress condition 154 may include determining that a number of wake-up beams from the wake-up beam set 152 fail to satisfy a quality threshold, the quality threshold representing a beam quality sufficient for wake-up indication communication. In some aspects, transmitting the distress indication 156 may include transmitting the distress indication 156 based on determining that a number of wake-up beams from the wake-up beam set 152 fail to satisfy the quality threshold.

[0057] In some aspects, determining that a number of wake-up beams from the wake-up beam set 152 fail to meet the quality threshold may include at least one of: determining that a number of wake-up beams from the wake-up beam set 152 fail to meet the quality threshold for several consecutive times, or determining that a number of wake-up beams from the wake-up beam set 152 fail to meet the quality threshold within a time period.

[0058] In some aspects, determining that a number of wake-up beams from the wake-up beam set 152 fail to satisfy the quality threshold may include determining that each wake-up beam from the wake-up beam set 152 fails to satisfy the quality threshold. Although not shown, the method 300 may further detect a radio link failure based on determining that each wake-up beam from the wake-up beam set 152 fails to satisfy the quality threshold, and perform an initial access procedure to reestablish an RRC connection with a network entity (e.g., the base station 105).

[0059] At block 306, method 300 may transmit the distress indication to a network entity. For example, as described herein, modem 140 of UE 110 may execute wake-up beam management component 150 to transmit distress indication 156 to a network entity (eg, base station 105).

[0060] In some aspects, each wake-up beam from the set of wake-up beams 152 may be associated with an uplink resource. In some aspects, transmitting the distress indication 156 may include transmitting the distress indication 156 on at least one uplink resource associated with a wake-up beam from the set of wake-up beams 152 that satisfies a quality threshold.

[0061] In some aspects, the distress indication 156 may include information regarding a number of wake-up beams from the set of wake-up beams 152 that fail to meet a quality threshold.

[0062] In some aspects, transmitting the distress indication 156 may include transmitting the distress indication 156 at a subsequent C-DRX On duration.

[0063] In some aspects, the distress indication 156 may trigger transmission of a subsequent wake-up beam set 158 ​​from a network entity (eg, the base station 105 ) having at least one wake-up beam that is not included in the wake-up beam set 152 .

[0064] In some aspects, although not shown, the method 300 may monitor one or more SSBs or reference signals for a subsequent wake-up beam set 158 ​​from a network entity (e.g., base station 105) in response to transmitting the distress indication 156, or monitor one or more SSBs or reference signals associated with the subsequent wake-up beam set 158.

[0065] Reference Figure 4 For example, a wireless communication method 300 of operating a network entity (such as a base station 105) according to various aspects described herein communicates with a UE that actively manages a wake-up beam according to one or more actions defined herein.

[0066] At block 402, the method 300 may transmit a wake-up beam set associated with one or more SSBs or reference signals to a UE. For example, the base station 105 may execute the transceiver 502 and / or the RF front end 588 to transmit the wake-up beam set 152 associated with one or more SSBs or reference signals to the UE 110 as described herein.

[0067] At block 404, method 300 may receive a distress indication from a UE. For example, base station 105 may execute transceiver 502 and / or RF front end 588 to receive distress indication 156 from UE 110 as described herein.

[0068] In some aspects, the distress indication 156 may include information regarding a number of wake-up beams from the set of wake-up beams 152 that fail to meet a quality threshold, which indicates a beam quality sufficient for wake-up indication communication.

[0069] At block 406, the method 300 may transmit a subsequent wake-up beam set to the UE, the subsequent wake-up beam set having at least one wake-up beam not included in the wake-up beam set. For example, as described herein, the base station 105 may execute the transceiver 502 and / or the RF front end 588 to transmit a subsequent wake-up beam set 158 ​​to the UE 110, the subsequent wake-up beam set 110 having at least one wake-up beam not included in the wake-up beam set 152.

[0070] Although not shown, method 300 may determine, based at least on uplink resources used to receive the distress indication from UE 110, at least one wake-up beam that fails to meet a quality threshold.

[0071] Although not shown, the method 300 may perform a partial beam recovery procedure in response to receiving the distress indication 156 .

[0072] Reference Figure 5 , an example of an implementation of UE 110 may include various components, some of which have been described above, but also include components such as one or more processors 512 and memory 516 in communication via one or more buses 544 and transceiver 502, which may operate in conjunction with modem 140 and wake-up beam management component 150 as described herein. In addition, one or more processors 512, modem 140, memory 516, transceiver 502, radio frequency (RF) front end 588, and one or more antennas 565 may be configured to support voice and / or data calls (simultaneously or non-simultaneously) in one or more radio access technologies. In some aspects, modem 140 may be the same as or similar to modem 140.

[0073] In one aspect, the one or more processors 512 may include a modem 140 using one or more modem processors. Various functions related to the wake-up beam management component 150 may be included in the modem 140 and / or the processor 512, and may be performed by a single processor in one aspect, while in other aspects, different ones of the functions may be performed by a combination of two or more different processors. For example, in one aspect, the one or more processors 512 may include any one or any combination of the following: a modem processor, or a baseband processor, or a digital signal processor, or a transmit processor, or a receiver processor, or a transceiver processor associated with the transceiver 502. In other aspects, some of the features of the one or more processors 512 and / or the modem 140 associated with the wake-up beam management component 150 may be performed by the transceiver 502.

[0074] In addition, the memory 516 can be configured to store local versions of data and / or applications 575 used herein, or the wake-up beam management component 150 and / or one or more subcomponents thereof executed by the at least one processor 512. The memory 516 may include any type of computer-readable medium usable by a computer or the at least one processor 512, such as random access memory (RAM), read-only memory (ROM), tape, magnetic disk, optical disk, volatile memory, non-volatile memory, and any combination thereof. In one aspect, for example, when the UE 110 is operating the at least one processor 512 to execute one or more of the wake-up beam management component 150 and / or its subcomponents, the memory 512 may be a non-transitory computer-readable storage medium storing one or more computer-executable codes and / or data associated therewith that define the wake-up beam management component 150 and / or one or more of its subcomponents.

[0075] The transceiver 502 may include at least one receiver 506 and at least one transmitter 508. The receiver 506 may include hardware, firmware, and / or software code executable by a processor for receiving data, the code including instructions and stored in a memory (e.g., a computer-readable medium). The receiver 506 may be, for example, an RF receiver. In one aspect, the receiver 506 may receive signals transmitted by at least one base station 105. Additionally, the receiver 506 may process such received signals and may also obtain measurements of these signals, such as but not limited to Ec / Io, SNR, RSRP, RSSI, etc. The transmitter 508 may include hardware, firmware, and / or software code executable by a processor for transmitting data, the code including instructions and stored in a memory (e.g., a computer-readable medium). Suitable examples of the transmitter 508 may include, but are not limited to, an RF transmitter.

[0076] Also, in an aspect, the UE 110 may include an RF front end 588 that may operate in communication with the one or more antennas 565 and the transceiver 502 for receiving and transmitting radio transmissions, such as wireless communications transmitted by at least one base station 105 or wireless transmissions transmitted by the UE 110. The RF front end 588 may be communicatively coupled with the one or more antennas 565 and may include one or more low noise amplifiers (LNAs) 590, one or more switches 592, one or more power amplifiers (PAs) 598, and one or more filters 596 for transmitting and receiving RF signals.

[0077] In one aspect, the LNA 590 can amplify the received signal to a desired output level. In one aspect, each LNA 590 can have a specified minimum and maximum gain value. In one aspect, the RF front end 588 can use one or more switches 592 to select a particular LNA 590 and its specified gain value based on the desired gain value for a particular application.

[0078] In addition, for example, one or more PAs 598 can be used by the RF front end 588 to amplify the signal to obtain an RF output at a desired output power level. In one aspect, each PA 598 can have a specified minimum and maximum gain value. In one aspect, the RF front end 588 can use one or more switches 592 to select a particular PA 598 and a corresponding specified gain value based on a desired gain value for a particular application.

[0079] In addition, for example, one or more filters 596 can be used by the RF front end 588 to filter the received signal to obtain the input RF signal. Similarly, in one aspect, for example, a corresponding filter 596 can be used to filter the output from the corresponding PA 598 to produce an output signal for transmission. In one aspect, each filter 596 can be connected to a specific LNA 590 and / or PA 598. In one aspect, the RF front end 588 can use one or more switches 592 to select a transmit or receive path using a specified filter 596, LNA 590, and / or PA 598 based on the configuration as specified by the transceiver 502 and / or the processor 512.

[0080] As such, the transceiver 502 may be configured to transmit and receive wireless signals via the RF front end 588 through the one or more antennas 565. In an aspect, the transceiver may be tuned to operate at a specified frequency so that the UE 110 may communicate, for example, with one or more base stations 105 or one or more cells associated with the one or more base stations 105. In an aspect, the modem 140 may configure the transceiver 502 to operate at a specified frequency and power level based on, for example, a UE configuration of the UE 110 and a communication protocol used by the modem 140.

[0081] In one aspect, the modem 140 may be a multi-band-multi-mode modem that processes digital data and communicates with the transceiver 502 so that the digital data is sent and received using the transceiver 502. In one aspect, the modem 140 may be multi-band and configured to support multiple frequency bands for a specific communication protocol. In one aspect, the modem 140 may be multi-mode and configured to support multiple operating networks and communication protocols. In one aspect, the modem 140 may control one or more components (e.g., RF front end 588, transceiver 502) of the UE 110 to enable transmission and / or reception of signals from the network based on a specified modem configuration. In one aspect, the modem configuration may be based on the mode of the modem and the frequency band used. In another aspect, the modem configuration may be based on UE configuration information associated with the UE 110, such as provided by the network during cell selection and / or cell reselection.

[0082] Reference Figure 6 , an example of an implementation of the base station 105 may include various components, some of which have been described above, but also include components such as one or more processors 612, memory 616, and a transceiver 602 in communication via one or more buses 644, which may operate in conjunction with the modem 160 and the wake-up beam component 170 to implement one or more functions described herein.

[0083] The transceiver 602, receiver 606, transmitter 608, one or more processors 612, memory 616, applications 675, bus 644, RF front end 688, LNA 690, switch 692, filter 696, PA 698, and one or more antennas 665 may be the same or similar to the corresponding components of UE 110 described above, but are configured or otherwise programmed for base station operation rather than UE operation.

[0084] Some further example embodiments

[0085] An example method for wireless communication at a user equipment, the method comprising: monitoring one or more synchronization signal blocks (SSBs) or reference signals associated with a wake-up beam set from a network entity; determining that the wake-up beam set satisfies a distress condition; and transmitting a distress indication to the network entity based on determining that the wake-up beam set satisfies the distress condition.

[0086] According to the above-mentioned example method, determining that the wake-up beam set meets the distress condition includes: determining that a number of wake-up beams from the wake-up beam set fail to meet a quality threshold, and the quality threshold represents a quality threshold sufficient for wake-up indication communication, and transmitting the distress indication includes: transmitting the distress indication based on determining that a number of wake-up beams from the wake-up beam set fail to meet the quality threshold.

[0087] According to one or more of the above-mentioned example methods, each wake-up beam from the wake-up beam set is associated with an uplink resource, and wherein transmitting the distress indication includes: transmitting the distress indication on at least one uplink resource associated with a wake-up beam from the wake-up beam set that meets the quality threshold.

[0088] According to one or more of the above-mentioned example methods, determining that several wake-up beams from the wake-up beam set cannot meet the quality threshold includes at least one of the following: determining that several wake-up beams from the wake-up beam set cannot meet the quality threshold for several consecutive times, or determining that several wake-up beams from the wake-up beam set cannot meet the quality threshold within a time period.

[0089] According to one or more of the above-mentioned example methods, determining that several wake-up beams from the wake-up beam set fail to meet a quality threshold includes: determining that each wake-up beam from the wake-up beam set fails to meet the quality threshold, the method further includes: detecting a radio link failure based on determining that each wake-up beam from the wake-up beam set fails to meet the quality threshold; and performing an initial access procedure to reestablish a radio resource control (RRC) connection with the network entity.

[0090] According to one or more of the above example methods, wherein the distress indication includes information about a number of wake-up beams from the set of wake-up beams that fail to meet the quality threshold.

[0091] According to one or more of the above example methods, wherein monitoring one or more SSBs or reference signals includes monitoring during a connected mode discontinuous reception (C-DRX) off period.

[0092] According to one or more of the above example methods, transmitting the distress indication includes: transmitting the distress indication during a subsequent C-DRX on duration.

[0093] According to one or more of the above example methods, wherein the distress indication triggers transmission of a subsequent wake-up beam set from the network entity, the subsequent wake-up beam set having at least one wake-up beam not included in the wake-up beam set.

[0094] According to one or more of the above example methods, further comprising: monitoring one or more SSBs or reference signals associated with a subsequent wake-up beam set from the network entity in response to transmitting the distress indication.

[0095] According to one or more of the above example methods, the one or more SSBs or reference signals are quasi-co-located (QCL) with the wake-up beam set.

[0096] An example method for wireless communication at a network entity, the method comprising: transmitting a wake-up beam set associated with one or more synchronization signal blocks (SSBs) or reference signals to a user equipment (UE); receiving a distress indication from the UE in response to transmitting the wake-up beam set; and transmitting a subsequent wake-up beam set to the UE, the subsequent wake-up beam set having at least one wake-up beam not included in the wake-up beam set.

[0097] According to the above example method, wherein the distress indication includes information about a number of wake-up beams from the set of wake-up beams that fail to meet a quality threshold, the quality threshold representing a beam quality sufficient for wake-up indication communication.

[0098] According to one or more of the above example methods, further comprising: determining at least one wake-up beam that fails to meet a quality threshold based at least on uplink resources used to receive the distress indication from the UE.

[0099] According to one or more of the above example methods, further comprising: performing a partial beam restoration procedure in response to receiving the distress indication.

[0100] An example user equipment (UE) comprises: a memory; at least one processor in communication with the memory, wherein the processor is configured to: monitor one or more synchronization signal blocks (SSBs) or reference signals associated with a wake-up beam set from a network entity; determine that the wake-up beam set satisfies a distress condition; and transmit a distress indication to the network entity based on determining that the wake-up beam set satisfies the distress condition.

[0101] According to the above-mentioned example UE, in order to determine that the wake-up beam set meets the distress condition, the at least one processor is further configured to: determine that a number of wake-up beams from the wake-up beam set fail to meet a quality threshold, and the quality threshold represents a beam quality sufficient for wake-up indication communication, and in order to transmit the distress indication, the at least one processor is further configured to: transmit the distress indication based on determining that a number of wake-up beams from the wake-up beam set fail to meet the quality threshold.

[0102] According to one or more UEs in the above-mentioned example UEs, each wake-up beam from the wake-up beam set is associated with an uplink resource, and wherein in order to transmit the distress indication, the at least one processor is further configured to: transmit the distress indication on at least one uplink resource associated with the wake-up beam from the wake-up beam set that meets the quality threshold.

[0103] According to one or more UEs in the above-mentioned example UEs, in order to determine that several wake-up beams from the wake-up beam set fail to meet the quality threshold, the at least one processor is further configured to: determine that several wake-up beams from the wake-up beam set fail to meet the quality threshold for several consecutive times, or determine that several wake-up beams from the wake-up beam set fail to meet the quality threshold within a time period.

[0104] According to one or more UEs in the above-mentioned example UEs, in order to determine that several wake-up beams from the wake-up beam set fail to meet the quality threshold, the at least one processor is further configured to: determine that each wake-up beam from the wake-up beam set fails to meet the quality threshold, the at least one processor is further configured to: detect a radio link failure based on determining that each wake-up beam from the wake-up beam set fails to meet the quality threshold; and perform an initial access procedure to reestablish a radio resource control (RRC) connection with the network entity.

[0105] According to one or more of the above example UEs, the distress indication includes information about a number of wake-up beams from the wake-up beam set that fail to meet the quality threshold.

[0106] According to one or more of the above example UEs, in order to monitor the one or more SSBs or reference signals, the at least one processor is further configured to: monitor during a connected mode discontinuous reception (C-DRX) off period.

[0107] According to one or more of the above example UEs, wherein in order to transmit the distress indication, the at least one processor is further configured to: transmit the distress indication during a subsequent C-DRX on duration.

[0108] According to one or more of the above example UEs, the distress indication triggers transmission of a subsequent wake-up beam set from the network entity, the subsequent wake-up beam set having at least one wake-up beam that is not included in the wake-up beam set.

[0109] According to one or more of the above example UEs, the at least one processor is further configured to: monitor one or more SSBs or reference signals associated with a subsequent wake-up beam set from the network entity in response to transmitting the distress indication.

[0110] According to one or more UEs in the above-mentioned example UEs, the one or more SSBs or reference signals are quasi-co-located (QCL) with the wake-up beam set.

[0111] An example network entity comprises: a memory; at least one processor in communication with the memory, wherein the processor is configured to: transmit a wake-up beam set associated with one or more synchronization signal blocks (SSBs) or reference signals to a user equipment (UE); receive a distress indication from the UE in response to transmitting the wake-up beam set; and transmit a subsequent wake-up beam set to the UE, the subsequent wake-up beam set having at least one wake-up beam not included in the wake-up beam set.

[0112] According to the above example network entity, wherein the distress indication includes information about a number of wake-up beams from the set of wake-up beams that fail to meet a quality threshold, the quality threshold representing a beam quality sufficient for wake-up indication communication.

[0113] According to one or more of the above example network entities, the at least one processor is further configured to: determine at least one wake-up beam that fails to meet a quality threshold based at least on uplink resources used to receive the distress indication from the UE.

[0114] According to one or more of the above example network entities, the at least one processor is further configured to: perform a partial beam restoration procedure in response to receiving the distress indication.

[0115] An example apparatus for wireless communications, comprising: means for monitoring one or more synchronization signal blocks (SSBs) or reference signals associated with a wake-up beam set from a network entity; means for determining that the wake-up beam set satisfies a distress condition; and means for transmitting a distress indication to the network entity based on determining that the wake-up beam set satisfies the distress condition.

[0116] An example non-transitory computer-readable medium storing computer code executable by a processor for wireless communication at a UE includes: code for monitoring one or more synchronization signal blocks (SSBs) or reference signals associated with a wake-up beam set from a network entity; code for determining that the wake-up beam set satisfies a distress condition; and code for transmitting a distress indication to the network entity based on determining that the wake-up beam set satisfies the distress condition.

[0117] An example apparatus for wireless communications includes: means for transmitting a wake-up beam set associated with one or more synchronization signal blocks (SSBs) or reference signals to a user equipment (UE); means for receiving a distress indication from the UE in response to transmitting the wake-up beam set; and means for transmitting a subsequent wake-up beam set to the UE, the subsequent wake-up beam set having at least one wake-up beam not included in the wake-up beam set.

[0118] An example non-transitory computer-readable medium storing computer code executable by a processor for wireless communication at a UE, comprising: code for transmitting a wake-up beam set associated with one or more synchronization signal blocks (SSBs) or reference signals to a user equipment (UE); code for receiving a distress indication from the UE in response to transmitting the wake-up beam set; and code for transmitting a subsequent wake-up beam set to the UE, the subsequent wake-up beam set having at least one wake-up beam not included in the wake-up beam set.

[0119] The above detailed description set forth above in conjunction with the accompanying drawings describes examples and does not represent the only examples that can be implemented or fall within the scope of the claims. The term "example" when used in this description means "used as an example, instance, or illustration", and does not mean "better than" or "better than other examples". This detailed description includes specific details to provide an understanding of the described techniques. However, these techniques can be practiced without these specific details. In some instances, well-known structures and devices are shown in block diagram form to avoid obscuring the concepts of the described examples.

[0120] Information and signals may be represented using any of a variety of different techniques and technologies. For example, data, instructions, commands, information, signals, bits, symbols, and chips that may be mentioned throughout the above description may be represented by voltages, currents, electromagnetic waves, magnetic fields or magnetic particles, optical fields or optical particles, computer executable codes or instructions stored on computer-readable media, or any combination thereof.

[0121] The various illustrative blocks and components described in conjunction with the disclosure herein may be implemented or executed with a specially programmed device, such as, but not limited to, a processor designed to perform the functions described herein, a digital signal processor (DSP), an ASIC, an FPGA or other programmable logic device, discrete gate or transistor logic, discrete hardware components, or any combination thereof. The specially programmed processor may be a microprocessor, but in the alternative, the processor may be any conventional processor, controller, microcontroller, or state machine. The specially programmed processor may also be implemented as a combination of computing devices, for example, a combination of a DSP and a microprocessor, a plurality of microprocessors, one or more microprocessors in conjunction with a DSP core, or any other such configuration.

[0122] 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, each function may be stored as one or more instructions or codes on a non-transient computer-readable medium or transmitted by it. Other examples and implementations fall within the scope and spirit of the present disclosure and the appended claims. For example, due to the nature of software, each of the above functions may be implemented using software, hardware, firmware, hard wiring, or any combination thereof executed by a specially programmed processor. The features that implement the functions may also be physically located in various locations, including being distributed so that the various parts of the functions are implemented at different physical locations. In addition, as used herein (including in the claims), the "or" used in the enumeration of items followed by "at least one of" indicates a disjunctive enumeration, so that, for example, the enumeration of "at least one of A, B, or C" represents A or B or C or AB or AC or BC or ABC (i.e., A and B and C).

[0123] Computer-readable media include both computer storage media and communication media, including any media that facilitates a computer program to be transferred from one place to another. Storage media can be any available media that can be accessed by a general or special-purpose computer. As an example and not limitation, computer-readable media may include RAM, ROM, EEPROM, CD-ROM or other optical disk storage, disk storage or other magnetic storage devices, or any other media that can be used to carry or store the desired program code means in the form of instructions or data structures and can be accessed by a general or special-purpose computer or a general or special-purpose processor. Any connection is also properly referred to as computer-readable media. For example, if software is transmitted from a website, server, or other remote source using coaxial cable, fiber optic cable, twisted pair, digital subscriber line (DSL), or wireless technologies such as infrared, radio, and microwaves, then the coaxial cable, fiber optic cable, twisted pair, DSL, or wireless technologies such as infrared, radio, and microwaves are included in the definition of medium. Disk and disc as used herein include compact disc (CD), laser disc, optical disc, digital versatile disc (DVD), floppy disk, and Blu-ray disc, wherein disk usually reproduces data magnetically, while disc reproduces data optically with laser. Combinations of the above media are also included in the scope of computer-readable media.

[0124] The previous description of the disclosure is provided to enable those skilled in the art to make or use the disclosure. Various modifications to the disclosure will be readily apparent to those skilled in the art, and the common principles defined herein may be applied to other variations without departing from the spirit or scope of the disclosure. In addition, although the elements of the described aspects and / or embodiments may be described or claimed in the singular, the plural is also contemplated unless explicitly stated to be limited to the singular. In addition, all or part of any aspect and / or embodiment may be used in conjunction with all or part of any other aspect and / or embodiment, unless otherwise stated. Thus, the disclosure is not limited to the examples and designs described herein, but should be granted the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A method for wireless communication at a user equipment, the method comprising: monitoring one or more synchronization signal blocks (SSBs) or reference signals associated with a wake-up beam set from a network entity during a connected mode discontinuous reception (C-DRX) off period; determining, during the C-DRX off period, that the wake-up beam set satisfies a distress condition; waking up at a subsequent C-DRX on duration in response to determining that the wake-up beam set satisfies the distress condition; transmitting a distress indication to the network entity after waking up during the subsequent C-DRX on duration in response to determining that the wake-up beam set satisfies the distress condition; as well as After transmitting the distress indication to the network entity, transitioning from a C-DRX on state to a C-DRX off state, wherein transitioning from the C-DRX on state to the C-DRX off state comprises: Transitioning to the C-DRX OFF state after remaining in an ON state until an end of the subsequent C-DRX ON duration of a C-DRX cycle in response to determining that a wake-up signal is received from the network entity during the C-DRX OFF period.

2. The method of claim 1, wherein determining that the wake-up beam set satisfies the distress condition comprises: determining that a number of wake-up beams from the set of wake-up beams fail to satisfy a quality threshold, the quality threshold indicating sufficient beam quality for wake-up indication communication, and Wherein transmitting the distress indication comprises transmitting the distress indication based on determining that the number of wake-up beams from the set of wake-up beams fail to meet the quality threshold.

3. The method of claim 2, wherein each wake-up beam from the set of wake-up beams is associated with an uplink resource, and Wherein transmitting the distress indication comprises: The distress indication is transmitted on at least one uplink resource associated with a wake-up beam from the set of wake-up beams that satisfies the quality threshold.

4. The method of claim 2, wherein determining that the number of wake-up beams from the set of wake-up beams fails to meet the quality threshold comprises at least one of: determining that the number of wake-up beams from the set of wake-up beams fail to meet the quality threshold for a number of consecutive times, or It is determined that the number of wake-up beams from the set of wake-up beams fail to satisfy the quality threshold within a time period.

5. The method of claim 2, wherein determining that the number of wake-up beams from the set of wake-up beams fails to meet a quality threshold comprises: Determining that each wake-up beam from the set of wake-up beams fails to meet the quality threshold, the method further comprising: detecting a radio link failure based on determining that each wake-up beam from the set of wake-up beams fails to meet the quality threshold; and An initial access procedure is performed to re-establish a radio resource control (RRC) connection with the network entity. 6 . The method of claim 2 , wherein the distress indication comprises information about the number of wake-up beams from the set of wake-up beams that fail to meet the quality threshold.

7. The method of claim 1, further comprising receiving the wake-up signal from the network entity after determining the distress condition and before transmitting the distress indication.

8. The method of claim 1, wherein transmitting the distress indication comprises: Even if the wake-up signal is not received from the network entity after determining the distress condition, the distress indication is transmitted to the network entity at the subsequent C-DRX on duration.

9. The method of claim 1, wherein the distress indication triggers transmission of a subsequent wake-up beam set from the network entity, the subsequent wake-up beam set having at least one wake-up beam that is not included in the wake-up beam set.

10. The method of claim 9, further comprising monitoring the one or more SSBs or reference signals associated with the subsequent wake-up beam set from the network entity in response to transmitting the distress indication.

11. The method of claim 1, wherein the one or more SSBs or reference signals are quasi-co-located (QCL) with the wake-up beam set.

12. A user equipment (UE), comprising: Memory; as well as at least one processor in communication with the memory, wherein the processor is configured to: monitoring one or more synchronization signal blocks (SSBs) or reference signals associated with a wake-up beam set from a network entity during a connected mode discontinuous reception (C-DRX) off period; determining, during the C-DRX off period, that the wake-up beam set satisfies a distress condition; waking up at a subsequent C-DRX on duration in response to determining that the wake-up beam set satisfies the distress condition; transmitting a distress indication to the network entity after waking up during the subsequent C-DRX on duration in response to determining that the wake-up beam set satisfies the distress condition; as well as After transmitting the distress indication to the network entity, transitioning from a C-DRX on state to a C-DRX off state, wherein transitioning from the C-DRX on state to the C-DRX off state comprises: Transitioning to the C-DRX OFF state after remaining in an ON state until an end of the subsequent C-DRX ON duration of a C-DRX cycle in response to determining that a wake-up signal is received from the network entity during the C-DRX OFF period.

13. The UE of claim 12, wherein to determine that the wake-up beam set satisfies the distress condition, the at least one processor is further configured to: determining that a number of wake-up beams from the set of wake-up beams fail to satisfy a quality threshold, the quality threshold indicating sufficient beam quality for wake-up indication communication, and Wherein, to transmit the distress indication, the at least one processor is further configured to: transmit the distress indication based on determining that the number of wake-up beams from the set of wake-up beams fail to meet the quality threshold.

14. The UE of claim 13, wherein each wake-up beam from the set of wake-up beams is associated with an uplink resource, and Wherein, to transmit the distress indication, the at least one processor is further configured to: transmit the distress indication on at least one uplink resource associated with a wake-up beam from the set of wake-up beams that meets the quality threshold.

15. The UE of claim 13, wherein in order to determine that the number of wake-up beams from the set of wake-up beams cannot satisfy the quality threshold, the at least one processor is further configured to: determining that the number of wake-up beams from the set of wake-up beams fail to meet the quality threshold for a number of consecutive times, or It is determined that the number of wake-up beams from the set of wake-up beams fail to satisfy the quality threshold within a time period.

16. The UE of claim 13, wherein in order to determine that the number of wake-up beams from the wake-up beam set cannot satisfy a quality threshold, the at least one processor is further configured to determine that each wake-up beam from the wake-up beam set cannot satisfy the quality threshold, the at least one processor is further configured to: detecting a radio link failure based on determining that each wake-up beam from the set of wake-up beams fails to meet the quality threshold; and An initial access procedure is performed to re-establish a radio resource control (RRC) connection with the network entity. 17 . The UE of claim 13 , wherein the distress indication comprises information about the number of wake-up beams from the set of wake-up beams that fail to meet the quality threshold.

18. The UE of claim 12, wherein the at least one processor is further configured to receive the wake-up signal from the network entity after determining the distress condition and before transmitting the distress indication.

19. The UE of claim 12, wherein the at least one processor is configured to transmit the distress indication to the network entity at the subsequent C-DRX on duration even if the wake-up signal is not received from the network entity after determining the distress condition.

20. The UE of claim 12, wherein the distress indication triggers transmission of a subsequent wake-up beam set from the network entity, the subsequent wake-up beam set having at least one wake-up beam not included in the wake-up beam set.

21. The UE of claim 20, wherein the at least one processor is further configured to monitor the one or more SSBs or reference signals associated with the subsequent wake-up beam set from the network entity in response to transmitting the distress indication.

22. The UE of claim 12, wherein the one or more SSBs or reference signals are quasi-co-located (QCL) with the wake-up beam set.

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