Low-power wake-up signals for network energy savings
Patent Information
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2025-02-06
- Publication Date
- 2026-08-13
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Figure CN2025075904_13082026_PF_FP_ABST
Abstract
Description
LOW-POWER WAKE-UP SIGNALS FOR NETWORK ENERGY SAVINGSINTRODUCTION
[0001] The following relates to wireless communications, including low-power wake-up signals (LP-WUSs) .
[0002] Wireless communications systems are widely deployed to provide various types of communication content such as voice, video, packet data, messaging, broadcast, and so on. These systems may be 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 fourth generation (4G) systems such as Long Term Evolution (LTE) systems, LTE-Advanced (LTE-A) systems, or LTE-A Pro systems, and fifth generation (5G) systems which may be referred to as New Radio (NR) systems. These systems may employ technologies such as code division multiple access (CDMA) , time division multiple access (TDMA) , frequency division multiple access (FDMA) , orthogonal FDMA (OFDMA) , or discrete Fourier transform spread orthogonal frequency division multiplexing (DFT-S-OFDM) . A wireless multiple-access communications system may include one or more base stations, each supporting wireless communication for communication devices, which may be known as user equipment (UE) .SUMMARY
[0003] The systems, methods, and devices of this disclosure each have several innovative aspects, no single one of which is solely responsible for the desirable attributes disclosed herein.
[0004] A method for wireless communication by a user equipment (UE) is described. The method may include receiving control signaling that includes a configuration for a low-power wake-up signal (LP-WUS) that represents a set of bits, where the configuration indicates that a first bit value corresponds to a first waveform type, where the configuration further indicates that a second bit value corresponds to a second waveform type, a third waveform type, or both, and where the first waveform type includes a transition between a first energy state and a second energy state, the second waveform type includes one of the first energy state or the second energy state, and the third waveform type includes a transition between the second energy state and the first energy state, receiving, while in a sleep state, the LP-WUS, where each bit of the set of bits is associated with a respective waveform in a respective time duration of the LP-WUS, where each respective waveform includes one of the first waveform type, the second waveform type, or the third waveform type, and continuing to operate in the sleep state in accordance with respective waveforms for a first subset of bits of the set of bits, where the respective waveforms include one of the second waveform type or the third waveform type, and where the first subset of bits of the set of bits corresponds to the UE.
[0005] A UE for wireless communication is described. The UE may include one or more memories, and one or more processors coupled with the one or more memories and configured to cause the UE to receive control signaling that includes a configuration for a LP-WUS that represents a set of bits, where the configuration indicates that a first bit value corresponds to a first waveform type, where the configuration further indicates that a second bit value corresponds to a second waveform type, a third waveform type, or both, and where the first waveform type includes a transition between a first energy state and a second energy state, the second waveform type includes one of the first energy state or the second energy state, and the third waveform type includes a transition between the second energy state and the first energy state, receive, while in a sleep state, the LP-WUS, where each bit of the set of bits is associated with a respective waveform in a respective time duration of the LP-WUS, where each respective waveform includes one of the first waveform type, the second waveform type, or the third waveform type, and continue to operate in the sleep state in accordance with respective waveforms for a first subset of bits of the set of bits, where the respective waveforms include one of the second waveform type or the third waveform type, and where the first subset of bits of the set of bits corresponds to the UE.
[0006] Another UE for wireless communication is described. The UE may include means for receiving control signaling that includes a configuration for a LP-WUS that represents a set of bits, where the configuration indicates that a first bit value corresponds to a first waveform type, where the configuration further indicates that a second bit value corresponds to a second waveform type, a third waveform type, or both, and where the first waveform type includes a transition between a first energy state and a second energy state, the second waveform type includes one of the first energy state or the second energy state, and the third waveform type includes a transition between the second energy state and the first energy state, means for receiving, while in a sleep state, the LP-WUS, where each bit of the set of bits is associated with a respective waveform in a respective time duration of the LP-WUS, where each respective waveform includes one of the first waveform type, the second waveform type, or the third waveform type, and means for continuing to operate in the sleep state in accordance with respective waveforms for a first subset of bits of the set of bits, where the respective waveforms include one of the second waveform type or the third waveform type, and where the first subset of bits of the set of bits corresponds to the UE.
[0007] A non-transitory computer-readable medium storing code for wireless communication is described. The code may include instructions executable by one or more processors to cause a UE to receive control signaling that includes a configuration for a LP-WUS that represents a set of bits, where the configuration indicates that a first bit value corresponds to a first waveform type, where the configuration further indicates that a second bit value corresponds to a second waveform type, a third waveform type, or both, and where the first waveform type includes a transition between a first energy state and a second energy state, the second waveform type includes one of the first energy state or the second energy state, and the third waveform type includes a transition between the second energy state and the first energy state, receive, while in a sleep state, the LP-WUS, where each bit of the set of bits is associated with a respective waveform in a respective time duration of the LP-WUS, where each respective waveform includes one of the first waveform type, the second waveform type, or the third waveform type, and continue to operate in the sleep state in accordance with respective waveforms for a first subset of bits of the set of bits, where the respective waveforms include one of the second waveform type or the third waveform type, and where the first subset of bits of the set of bits corresponds to the UE.
[0008] Some examples of the method, UEs, and non-transitory computer-readable medium described herein may further include operations, features, means, or instructions for transmitting signaling that indicates a capability of the UE to receive the LP-WUS that includes the second waveform type, the third waveform type, or both, where the configuration for the LP-WUS may be in accordance with the capability of the UE.
[0009] Some examples of the method, UEs, and non-transitory computer-readable medium described herein may further include operations, features, means, or instructions for receiving, while in an active state, one or more channel state reference signals and transmitting, while in the active state, a channel state information report or a measurement report that indicates one or more channel measurements measured via the one or more channel state reference signals, where the respective waveforms associated with the first subset of bits include the third waveform type in accordance with the one or more channel measurements.
[0010] Some examples of the method, UEs, and non-transitory computer-readable medium described herein may further include operations, features, means, or instructions for receiving, while in an active state, one or more reference signals and transmitting, while in the active state, a layer 1 or layer 3 report that indicates one or more channel measurements measured via the one or more reference signals, where the respective waveforms associated with the first subset of bits include the third waveform type in accordance with the one or more channel measurements.
[0011] In some examples of the method, UEs, and non-transitory computer-readable medium described herein, the respective waveforms for the first subset of bits include the third waveform type and respective waveforms for a second subset of bits of the set of bits include the second waveform type.
[0012] In some examples of the method, UEs, and non-transitory computer-readable medium described herein, a presence of the second waveform type for the respective waveforms of the first subset of bits and a presence of the third waveform type in the respective waveforms for the second subset of bits may be in accordance with a first pattern of a set of multiple patterns.
[0013] Some examples of the method, UEs, and non-transitory computer-readable medium described herein may further include operations, features, means, or instructions for performing one or more timing synchronization operations via the respective waveforms for the first subset of bits in accordance with the third waveform type of the respective waveforms for the first subset of bits.
[0014] Some examples of the method, UEs, and non-transitory computer-readable medium described herein may further include operations, features, means, or instructions for adjusting an automatic gain control at the UE via the respective waveforms for the first subset of bits in accordance with the third waveform type of the respective waveforms for the first subset of bits.
[0015] In some examples of the method, UEs, and non-transitory computer-readable medium described herein, the LP-WUS further represents a set of cyclic redundancy check bits in addition to the set of bits, and respective waveforms for each bit of the set of cyclic redundancy check bits corresponds to one of the first waveform type, the second waveform type, the third waveform type, or any combination thereof.
[0016] In some examples of the method, UEs, and non-transitory computer-readable medium described herein, the control signaling further indicates whether the LP-WUS indicates the set of cyclic redundancy check bits in addition to the set of bits.
[0017] In some examples of the method, UEs, and non-transitory computer-readable medium described herein, the control signaling further indicates whether a mapping between the second waveform type and one or more bits of the set of bits occurs either prior to forward error correction coding or subsequent to the forward error correction coding, the one or more bits of the set of bits include the second bit value, and the LP-WUS may be in accordance with the control signaling.
[0018] In some examples of the method, UEs, and non-transitory computer-readable medium described herein, the respective waveforms for each bit of the first subset of bits include the second waveform type.
[0019] In some examples of the method, UEs, and non-transitory computer-readable medium described herein, the first energy state includes a presence of energy, and the second energy state includes an absence of energy.
[0020] In some examples of the method, UEs, and non-transitory computer-readable medium described herein, the first energy state includes an absence of energy, and the second energy state includes a presence of energy.
[0021] In some examples of the method, UEs, and non-transitory computer-readable medium described herein, the UE includes a main radio and a wake-up radio (WUR) , and the UE may be configured to utilize the main radio to perform one or more operations in an active state, and the UE may be configured to utilize the WUR to perform one or more operations when the UE may be in the sleep state.
[0022] In some examples of the method, UEs, and non-transitory computer-readable medium described herein, the first bit value indicates for the UE to transition from the sleep state to an active state, and the second bit value indicates for the UE to continue to perform one or more operations in the sleep state.
[0023] In some examples of the method, UEs, and non-transitory computer-readable medium described herein, a second subset of bits of the set of bits correspond to a second UE that may be different from the UE.
[0024] A method for wireless communication by a network entity is described. The method may include outputting control signaling that includes a configuration for a LP-WUS that represents a set of bits, where the configuration indicates that a first bit value corresponds to a first waveform type, where the configuration further indicates that a second bit value corresponds to a second waveform type, a third waveform type, or both, and where the first waveform type includes a transition between a first energy state and a second energy state, the second waveform type includes one of the first energy state or the second energy state, and the third waveform type includes a transition between the second energy state and the first energy state, generating the LP-WUS in accordance with the configuration, where each bit of the set of bits corresponds to a respective waveform, and where each respective waveform includes one of the first waveform type, the second waveform type, or the third waveform type, and outputting the LP-WUS, where the respective waveform of each bit of the set of bits is conveyed in a respective time duration of the LP-WUS, and where respective subsets of bits of the set of bits are each associated with a respective UE of one or more UEs.
[0025] A network entity for wireless communication is described. The network entity may include one or more memories, and one or more processors coupled with the one or more memories and configured to cause the network entity to output control signaling that includes a configuration for a LP-WUS that represents a set of bits, where the configuration indicates that a first bit value corresponds to a first waveform type, where the configuration further indicates that a second bit value corresponds to a second waveform type, a third waveform type, or both, and where the first waveform type includes a transition between a first energy state and a second energy state, the second waveform type includes one of the first energy state or the second energy state, and the third waveform type includes a transition between the second energy state and the first energy state, generate the LP-WUS in accordance with the configuration, where each bit of the set of bits corresponds to a respective waveform, and where each respective waveform includes one of the first waveform type, the second waveform type, or the third waveform type, and output the LP-WUS, where the respective waveform of each bit of the set of bits is conveyed in a respective time duration of the LP-WUS, and where respective subsets of bits of the set of bits are each associated with a respective UE of one or more UEs.
[0026] Another network entity for wireless communication is described. The network entity may include means for outputting control signaling that includes a configuration for a LP-WUS that represents a set of bits, where the configuration indicates that a first bit value corresponds to a first waveform type, where the configuration further indicates that a second bit value corresponds to a second waveform type, a third waveform type, or both, and where the first waveform type includes a transition between a first energy state and a second energy state, the second waveform type includes one of the first energy state or the second energy state, and the third waveform type includes a transition between the second energy state and the first energy state, means for generating the LP-WUS in accordance with the configuration, where each bit of the set of bits corresponds to a respective waveform, and where each respective waveform includes one of the first waveform type, the second waveform type, or the third waveform type, and means for outputting the LP-WUS, where the respective waveform of each bit of the set of bits is conveyed in a respective time duration of the LP-WUS, and where respective subsets of bits of the set of bits are each associated with a respective UE of one or more UEs.
[0027] A non-transitory computer-readable medium storing code for wireless communication is described. The code may include instructions executable by one or more processors to cause a network entity to output control signaling that includes a configuration for a LP-WUS that represents a set of bits, where the configuration indicates that a first bit value corresponds to a first waveform type, where the configuration further indicates that a second bit value corresponds to a second waveform type, a third waveform type, or both, and where the first waveform type includes a transition between a first energy state and a second energy state, the second waveform type includes one of the first energy state or the second energy state, and the third waveform type includes a transition between the second energy state and the first energy state, generate the LP-WUS in accordance with the configuration, where each bit of the set of bits corresponds to a respective waveform, and where each respective waveform includes one of the first waveform type, the second waveform type, or the third waveform type, and output the LP-WUS, where the respective waveform of each bit of the set of bits is conveyed in a respective time duration of the LP-WUS, and where respective subsets of bits of the set of bits are each associated with a respective UE of one or more UEs.
[0028] In some examples of the method, network entities, and non-transitory computer-readable medium described herein, generating the LP-WUS may include operations, features, means, or instructions for obtaining a second set of bits, where each bit of the second set of bits may be associated with a respective UE of the one or more UEs, mapping each bit of the second set of bits to one of the first waveform type, the second waveform type, or the third waveform type in accordance with a bit value of each bit of the second set of bits and the configuration, obtaining the set of bits in accordance with a forward error correction encoding procedure on the second set of bits, where each bit of the set of bits may be mapped to one of the first waveform type, the second waveform type, or the third waveform type, and applying one of the first waveform type, the second waveform type, or the third waveform type to each bit of the set of bits in accordance with mapping each bit of the set of bits to one of the first waveform type, the second waveform type, or the third waveform type.
[0029] Some examples of the method, network entities, and non-transitory computer-readable medium described herein may further include operations, features, means, or instructions for obtaining a set of cyclic redundancy check bits in accordance with obtainment of the second set of bits, where each bit of the set of cyclic redundancy check bits may be mapped to one of the first waveform type, the second waveform type, or the third waveform type at a same time as mapping each bit of the second set of bits.
[0030] In some examples of the method, network entities, and non-transitory computer-readable medium described herein, generating the LP-WUS may include operations, features, means, or instructions for obtaining a second set of bits, where each bit of the second set of bits may be associated with a respective UE of the one or more UEs, obtaining the set of bits in accordance with a forward error correction encoding procedure on the second set of bits, mapping each bit of the set of bits with one of the first waveform type, the second waveform type, or the third waveform type in accordance with a bit value of each bit of the set of bits and the configuration, and applying one of the first waveform type, the second waveform type, or the third waveform type to each bit of the set of bits in accordance with mapping each bit of the set of bits to one of the first waveform type, the second waveform type, or the third waveform type.
[0031] Some examples of the method, network entities, and non-transitory computer-readable medium described herein may further include operations, features, means, or instructions for obtaining a set of cyclic redundancy check bits in accordance with obtainment of the set of bits, where each bit of the set of cyclic redundancy check bits may be mapped to the first waveform type, the second waveform type, or the third waveform type at a same time as mapping each bit of the set of bits.
[0032] Some examples of the method, network entities, and non-transitory computer-readable medium described herein may further include operations, features, means, or instructions for obtaining, from a first UE, signaling that indicates a capability of the first UE to receive the LP-WUS that includes the second waveform type, the third waveform type, or both, where the configuration for the LP-WUS may be in accordance with the capability of the first UE.
[0033] Some examples of the method, network entities, and non-transitory computer-readable medium described herein may further include operations, features, means, or instructions for outputting, to a first UE, one or more channel state reference signals and obtaining, a channel state information report that indicates one or more channel measurements associated with the one or more channel state reference signals, where respective waveforms associated with a first subset of bits of the set of bits associated with the first UE include the third waveform type in accordance with the one or more channel measurements.
[0034] A method for wireless communication by a UE is described. The method may include receiving, while in an active state, control signaling that indicates whether the UE is to operate in accordance with a first state transition procedure or a second state transition procedure in response to reception of a LP-WUS, receiving, while in a sleep state, the LP-WUS, where the LP-WUS includes a codepoint value, and performing one of the first state transition procedure or the second state transition procedure in accordance with the control signaling and the codepoint value, where the first state transition procedure includes a transition from the sleep state to the active state in accordance with an association between the codepoint value and the UE, and where the second state transition procedure includes a continuation of operations in the sleep state in accordance with the association between the codepoint value and the UE.
[0035] A UE for wireless communication is described. The UE may include one or more memories, and one or more processors coupled with the one or more memories and configured to cause the UE to receive, while in an active state, control signaling that indicates whether the UE is to operate in accordance with a first state transition procedure or a second state transition procedure in response to reception of a LP-WUS, receive, while in a sleep state, the LP-WUS, where the LP-WUS includes a codepoint value, and perform one of the first state transition procedure or the second state transition procedure in accordance with the control signaling and the codepoint value, where the first state transition procedure includes a transition from the sleep state to the active state in accordance with an association between the codepoint value and the UE, and where the second state transition procedure includes a continuation of operations in the sleep state in accordance with the association between the codepoint value and the UE.
[0036] Another UE for wireless communication is described. The UE may include means for receiving, while in an active state, control signaling that indicates whether the UE is to operate in accordance with a first state transition procedure or a second state transition procedure in response to reception of a LP-WUS, means for receiving, while in a sleep state, the LP-WUS, where the LP-WUS includes a codepoint value, and means for performing one of the first state transition procedure or the second state transition procedure in accordance with the control signaling and the codepoint value, where the first state transition procedure includes a transition from the sleep state to the active state in accordance with an association between the codepoint value and the UE, and where the second state transition procedure includes a continuation of operations in the sleep state in accordance with the association between the codepoint value and the UE.
[0037] A non-transitory computer-readable medium storing code for wireless communication is described. The code may include instructions executable by one or more processors to cause a UE to receive, while in an active state, control signaling that indicates whether the UE is to operate in accordance with a first state transition procedure or a second state transition procedure in response to reception of a LP-WUS, receive, while in a sleep state, the LP-WUS, where the LP-WUS includes a codepoint value, and perform one of the first state transition procedure or the second state transition procedure in accordance with the control signaling and the codepoint value, where the first state transition procedure includes a transition from the sleep state to the active state in accordance with an association between the codepoint value and the UE, and where the second state transition procedure includes a continuation of operations in the sleep state in accordance with the association between the codepoint value and the UE.
[0038] In some examples of the method, UEs, and non-transitory computer-readable medium described herein, performing the first state transition procedure may include operations, features, means, or instructions for transitioning from the sleep state to the active state in accordance with the codepoint value and the first state transition procedure.
[0039] In some examples of the method, UEs, and non-transitory computer-readable medium described herein, performing the first state transition procedure may include operations, features, means, or instructions for refraining to transition from the sleep state to the active state in accordance with the codepoint value and the first state transition procedure.
[0040] In some examples of the method, UEs, and non-transitory computer-readable medium described herein, performing the second state transition procedure may include operations, features, means, or instructions for refraining to transition from the sleep state to the active state in accordance with the codepoint value and the second state transition procedure.
[0041] In some examples of the method, UEs, and non-transitory computer-readable medium described herein, performing the second state transition procedure may include operations, features, means, or instructions for transitioning from the sleep state to the active state in accordance with the codepoint value and the second state transition procedure.
[0042] In some examples of the method, UEs, and non-transitory computer-readable medium described herein, the UE includes a main radio and a WUR, and the UE may be configured to utilize the main radio to perform one or more operations in the active state, and the UE may be configured to utilize the WUR to perform one or more operations in the sleep state.
[0043] In some examples of the method, UEs, and non-transitory computer-readable medium described herein, transitioning from the active state to the sleep state may include operations, features, means, or instructions for transitioning from performing the one or more operations via the WUR to performing the one or more operations via the main radio.
[0044] A method for wireless communication by a network entity is described. The method may include outputting control signaling that indicates whether a UE is to operate in accordance with a first state transition procedure or a second state transition procedure in response to communication of a LP-WUS and outputting, to the UE, the LP-WUS that includes a codepoint value, where the first state transition procedure includes a transition, at the UE, from a sleep state to an active state in accordance with an association between the codepoint value and the UE, and where the second state transition procedure includes a continuation of operations, at the UE, in the sleep state in accordance with the association between the codepoint value and the UE.
[0045] A network entity for wireless communication is described. The network entity may include one or more memories, and one or more processors coupled with the one or more memories and configured to cause the network entity to output control signaling that indicates whether a UE is to operate in accordance with a first state transition procedure or a second state transition procedure in response to communication of a LP-WUS and output, to the UE, the LP-WUS that includes a codepoint value, where the first state transition procedure includes a transition, at the UE, from a sleep state to an active state in accordance with an association between the codepoint value and the UE, and where the second state transition procedure includes a continuation of operations, at the UE, in the sleep state in accordance with the association between the codepoint value and the UE.
[0046] Another network entity for wireless communication is described. The network entity may include means for outputting control signaling that indicates whether a UE is to operate in accordance with a first state transition procedure or a second state transition procedure in response to communication of a LP-WUS and means for outputting, to the UE, the LP-WUS that includes a codepoint value, where the first state transition procedure includes a transition, at the UE, from a sleep state to an active state in accordance with an association between the codepoint value and the UE, and where the second state transition procedure includes a continuation of operations, at the UE, in the sleep state in accordance with the association between the codepoint value and the UE.
[0047] A non-transitory computer-readable medium storing code for wireless communication is described. The code may include instructions executable by one or more processors to cause a network entity to output control signaling that indicates whether a UE is to operate in accordance with a first state transition procedure or a second state transition procedure in response to communication of a LP-WUS and output, to the UE, the LP-WUS that includes a codepoint value, where the first state transition procedure includes a transition, at the UE, from a sleep state to an active state in accordance with an association between the codepoint value and the UE, and where the second state transition procedure includes a continuation of operations, at the UE, in the sleep state in accordance with the association between the codepoint value and the UE.
[0048] In some examples of the method, network entities, and non-transitory computer-readable medium described herein, the control signaling indicates for the UE to operate in accordance with the first state transition procedure and the method, apparatuses, and non-transitory computer-readable medium may include further operations, features, means, or instructions for outputting one or more control channel messages to the UE in accordance with the codepoint value and the first state transition procedure.
[0049] In some examples of the method, network entities, and non-transitory computer-readable medium described herein, the control signaling indicates for the UE to operate in accordance with the first state transition procedure and the method, apparatuses, and non-transitory computer-readable medium may include further operations, features, means, or instructions for refraining to output one or more control channel messages to the UE in accordance with the codepoint value and the first state transition procedure.
[0050] In some examples of the method, network entities, and non-transitory computer-readable medium described herein, the control signaling indicates for the UE to operate in accordance with the second state transition procedure and the method, apparatuses, and non-transitory computer-readable medium may include further operations, features, means, or instructions for refraining to output one or more control channel messages to the UE in accordance with the codepoint value and the second state transition procedure.
[0051] In some examples of the method, network entities, and non-transitory computer-readable medium described herein, the control signaling indicates for the UE to operate in accordance with the second state transition procedure and the method, apparatuses, and non-transitory computer-readable medium may include further operations, features, means, or instructions for outputting one or more control channel messages to the UE in accordance with the codepoint value and the second state transition procedure.
[0052] Details of one or more implementations of the subject matter described in this disclosure are set forth in the accompanying drawings and the description below. Other features, aspects, and advantages will become apparent from the description, the drawings, and the claims. Note that the relative dimensions of the following figures may not be drawn to scale.BRIEF DESCRIPTION OF THE DRAWINGS
[0053] FIG. 1 shows an example of a wireless communications system that supports low-power wake-up signals (LP-WUSs) for network energy savings in accordance with one or more aspects of the present disclosure.
[0054] FIG. 2 shows an example of a network architecture that supports LP-WUSs for network energy savings in accordance with one or more aspects of the present disclosure.
[0055] FIG. 3 shows an example of a wireless communications system that supports LP-WUSs for network energy savings in accordance with one or more aspects of the present disclosure.
[0056] FIG. 4 shows examples of signaling diagrams that support LP-WUSs for network energy savings in accordance with one or more aspects of the present disclosure.
[0057] FIG. 5 shows an example of a process flow that supports LP-WUSs for network energy savings in accordance with one or more aspects of the present disclosure.
[0058] FIG. 6 shows an example of a process flow that supports LP-WUSs for network energy savings in accordance with one or more aspects of the present disclosure.
[0059] FIGs. 7 and 8 show block diagrams of devices that support LP-WUSs for network energy savings in accordance with one or more aspects of the present disclosure.
[0060] FIG. 9 shows a block diagram of a communications manager that supports LP-WUSs for network energy savings in accordance with one or more aspects of the present disclosure.
[0061] FIG. 10 shows a diagram of a system including a device that supports LP-WUSs for network energy savings in accordance with one or more aspects of the present disclosure.
[0062] FIGs. 11 and 12 show block diagrams of devices that support LP-WUSs for network energy savings in accordance with one or more aspects of the present disclosure.
[0063] FIG. 13 shows a block diagram of a communications manager that supports LP-WUSs for network energy savings in accordance with one or more aspects of the present disclosure.
[0064] FIG. 14 shows a diagram of a system including a device that supports LP-WUSs for network energy savings in accordance with one or more aspects of the present disclosure.
[0065] FIGs. 15 through 18 show flowcharts illustrating methods that support LP-WUSs for network energy savings in accordance with one or more aspects of the present disclosure.DETAILED DESCRIPTION
[0066] Some user equipments (UEs) may include a wake-up radio (WUR) (e.g., a lower power WUR) in addition to a main radio, where the WUR may be associated with lower power consumption at the UE relative to the main radio. Accordingly, to achieve power savings at the UE, the UE may enter a sleep state, in which the UE may power down the main radio. As such, a sleep state at the UE may involve powering down of the main radio. During the sleep state, the UE may use the WUR to monitor for one or more low-power wake-up signals (LP-WUSs) , which, when detected by the UE, may trigger the UE to wake-up the main radio and monitor for one or more control channels. As described herein, a low-power WUS may be a signal utilized by a network entity to indicate for the UE to transition from a sleep state to an active state. The active state at the UE may be associated with the UE performing one or more operations using the main radio, while the sleep state at the UE may be associated with the UE performing one or more operations using the WUR.
[0067] In some cases, the LP-WUS may represent a set of bits (e.g., a bitmap) , where each bit of the set of bits corresponds to a respective UE. For example, if a network entity communicates with two UEs that are operating in the sleep state, the LP-WUS may represent two bits (e.g., one for each UE) . Accordingly, to transmit the LP-WUS, the network entity may apply one or more coding methods to the LP-WUS prior to transmission of the LP-WUS. In some cases, the network entity may apply Manchester coding to LP-WUS to convey each bit of the set of bits according to a specific waveform. For example, in Manchester coding, a bit value of ‘1’ may correspond to a waveform that includes a transition from a first energy state (e.g., a presence of energy) to a second energy state (e.g., an absence of energy) during a first time duration, while a bit value of ‘0’ may correspond to a waveform that includes a transition from the second energy state (e.g., an absence of energy) to the first energy state (e.g., a presence of energy) .
[0068] In such cases, however, if a single bit of the set of bits includes a bit value of ‘1’ (e.g., indicating for the associated UE to wake-up) , the network entity may apply the first waveform (e.g., the first energy state to the second energy state) for the single bit (e.g., the bit ‘1’ ) and may still apply the second waveform (e.g., the second energy state to the first energy state) for each other bit (e.g., bits having a bit value of ‘0’ ) of the set of bits when transmitting the LP-WUS, which may increase power consumption at the network entity and be inefficient for communications with a relatively larger quantity of UEs. For example, if the set of bits includes 10 bits, and 2 bits of the 10 bits correspond to a bit value of ‘1’ , the network entity may apply the second waveform in the LP-WUS for 8 bits, which may be inefficient and increase power consumption at the network entity. Thus, techniques may be desired to increase efficiency and reduce energy consumption at the network entity for transmission of the LP-WUS.
[0069] The techniques, methods, and devices described herein provide for the network entity to convey a bit value of ‘0’ as the second energy state (e.g., an absence of energy during a time duration) , which may provide for flexibility and higher network energy efficiency for transmission of the LP-WUS. For example, the network entity may transmit a configuration (e.g., a radio resource control (RRC) configuration) for the LP-WUS. In some examples, the configuration may indicate that a first bit value (e.g., ‘1’ ) corresponds to a first waveform type (e.g., transition from the first energy state to the second energy state) and indicates that a second bit value (e.g., ‘0’ ) corresponds a second waveform type (e.g., the second energy state, the absence of energy) or a third waveform type (e.g., transition from the second energy state to the first energy state) .
[0070] By providing the configuration, the network entity and the one or more UEs in communication with the network entity may align on the structure of the LP-WUS, which may improve coordination between the network entity and the one or more UEs and may improve the likelihood of the one or more UEs successfully receiving the LP-WUS due to the UEs having an indication of which waveform type to expect during the transmission.
[0071] As described herein, an energy state may correspond to the presence or absence of energy detected by a UE during a time duration. For example, the first energy state may correspond to the presence of energy, while the second energy state may correspond to the absence of energy. A waveform may correspond to the pattern of transmitted energy over a duration, and may include a transition between energy states or simply maintaining an energy state over the duration. That is, either the presence of energy, the absence of energy, or a transition between energy states over a duration or any combination of these features within the duration may be referred to as a waveform. Additionally, or alternatively, it should be understood that the first waveform type may correspond to a transition between the second energy state to the first energy state, while the third waveform type may correspond to a transition between the first energy state and the second energy state.
[0072] According to the configuration, the network entity may generate the LP-WUS, for example, by mapping each bit of the set of bits to a respective waveform (e.g., one of the first waveform type, the second waveform type, or the third waveform type) according to the bit values of each bit. In one example, the network entity may map a first bit corresponding to a first UE to the first waveform type, map a second bit corresponding to a second UE to the second waveform type, and map a third bit corresponding to a third UE to the third waveform type. Based on mapping each bit of the set of bits to a respective waveform, the network entity may transmit the LP-WUS to the first UE, the second UE, and the third UE.
[0073] As such, each UE may receive, while in the sleep state and using the WUR, the LP-WUS and determine whether to continue to operate in the sleep state or transition to an active state according to the respective waveforms of the set of bits. As described herein, the active state corresponds to a UE performing one or more operations using the main radio. Further, the sleep state may correspond to a state where the UE performs a more limited set of operations or where a subset of components are powered down as compared to the active state, and where the UE uses the WUR to receive signals.
[0074] For example, the first UE may detect that the waveform for the first bit corresponds to the first waveform type. Accordingly, the first UE may determine that the bit value of the first bit is ‘1’ and may transition into the active state. By transmitting a bit value of ‘1’ as the first waveform type, the network entity may efficiently signal to the first UE to wake-up the main radio of the first UE, which may improve coordination between devices and enable the first UE to maintain communication with the network entity, thereby reducing latency and improving efficiency of communications.
[0075] The second UE may detect that the waveform for the second bit corresponds to the second waveform type (e.g., an absence of energy) . Accordingly, the second UE may determine that the bit value of the second bit is ‘0’ and may continue to operate in the sleep state. By communicating a bit value of ‘0’ as the second waveform type (e.g., an absence of energy) , the network entity may avoid transmitting energy during the associated time duration, thereby reducing power consumption at the network entity and improving network energy efficiency.
[0076] The third UE may detect that the waveform for the third bit is the third waveform type. Accordingly, the third UE may determine that the bit value of the first is ‘0’ and may perform one or more time synchronization operations using the waveform while in the sleep state. The third waveform type may correspond to a transition between the second energy state (e.g., the absence of energy) to the first energy state (e.g., the presence of energy) . In this way, either the third waveform type or the second waveform type may correspond to a bit value of ‘0’ , such that a UE receiving the third waveform type (e.g., a transition from the second energy state to the first energy state) in a duration may have an indication that the corresponding bit is ‘0’ and the UE may differentiate the third waveform type from the second waveform type by identifying the transition from the second energy state to the first energy state. By communicating a bit value of ‘0’ as the third waveform type, the network entity may enable the third UE to perform one or more timing synchronization operations using the third waveform type, which may enable the third UE to remain in sync with the network entity, thereby reducing the likelihood of communication failures in response to the third UE transitioning into the active state. Additionally, by communicating a bit value of ‘0’ as the third waveform type, the network entity may ensure that UEs associated with poor downlink channel quality may receive an explicit indication to maintain operations in the sleep state, thereby improving coordination between the network entity and the UEs.
[0077] In some other examples, the network entity may assign one or multiple UEs to a codepoint value. As described herein, a codepoint value may be a numerical indication that is mapped to, or otherwise associated with, a UE. As such, to indicate for a UE to transition from the sleep state to the active state, the network entity may transmit, via the LP-WUS, the codepoint value to the UE, where the UE may transition from the sleep state to the active state if the codepoint value in the LP-WUS is associated with the UE.
[0078] Aspects of the disclosure are initially described in the context of wireless communications systems. Aspects of the disclosure are further illustrated by and described with reference to apparatus diagrams, system diagrams, and flowcharts that relate to LP-WUSs for network energy savings.
[0079] FIG. 1 shows an example of a wireless communications system 100 that supports LP-WUSs for network energy savings in accordance with one or more aspects of the present disclosure. The wireless communications system 100 may include one or more devices, such as one or more network devices (e.g., network entities 105) , one or more UEs 115, and a core network 130. In some examples, the wireless communications system 100 may be a Long Term Evolution (LTE) network, an LTE-Advanced (LTE-A) network, an LTE-A Pro network, a New Radio (NR) network, or a network operating in accordance with other systems and radio technologies, including future systems and radio technologies not explicitly mentioned herein.
[0080] The network entities 105 may be dispersed throughout a geographic area to form the wireless communications system 100 and may include devices in different forms or having different capabilities. In various examples, a network entity 105 may be referred to as a network element, a mobility element, a radio access network (RAN) node, or network equipment, among other nomenclature. In some examples, network entities 105 and UEs 115 may wirelessly communicate via communication link (s) 125 (e.g., a radio frequency (RF) access link) . For example, a network entity 105 may support a coverage area 110 (e.g., a geographic coverage area) over which the UEs 115 and the network entity 105 may establish the communication link (s) 125. The coverage area 110 may be an example of a geographic area over which a network entity 105 and a UE 115 may support the communication of signals according to one or more radio access technologies (RATs) . In some examples, the network entity 105 may include a communications manager 106 that facilitates communication with one or more UEs 115, such as facilitating communications of a LP-WUS, as described herein.
[0081] The UEs 115 may be dispersed throughout a coverage area 110 of the wireless communications system 100, and each UE 115 may be stationary, or mobile, or both at different times. The UEs 115 may be devices in different forms or having different capabilities. Some example UEs 115 are illustrated in FIG. 1. The UEs 115 described herein may be capable of supporting communications with various types of devices in the wireless communications system 100 (e.g., other wireless communication devices, including UEs 115 or network entities 105) , as shown in FIG. 1. In some examples, the UE 115 may include a communications manager 116 that facilitates communication with one or more UEs 115 or network entities 105, such as facilitating communications of a LP-WUS, as described herein.
[0082] As described herein, a node of the wireless communications system 100, which may be referred to as a network node, or a wireless node, may be a network entity 105 (e.g., any network entity described herein) , a UE 115 (e.g., any UE described herein) , a network controller, an apparatus, a device, a computing system, one or more components, or another suitable processing entity configured to perform any of the techniques described herein. For example, a node may be a UE 115. As another example, a node may be a network entity 105. As another example, a first node may be configured to communicate with a second node or a third node. In one aspect of this example, the first node may be a UE 115, the second node may be a network entity 105, and the third node may be a UE 115. In another aspect of this example, the first node may be a UE 115, the second node may be a network entity 105, and the third node may be a network entity 105. In yet other aspects of this example, the first, second, and third nodes may be different relative to these examples. Similarly, reference to a UE 115, network entity 105, apparatus, device, computing system, or the like may include disclosure of the UE 115, network entity 105, apparatus, device, computing system, or the like being a node. For example, disclosure that a UE 115 is configured to receive information from a network entity 105 also discloses that a first node is configured to receive information from a second node.
[0083] In some examples, network entities 105 may communicate with a core network 130, or with one another, or both. For example, network entities 105 may communicate with the core network 130 via backhaul communication link (s) 120 (e.g., in accordance with an S1, N2, N3, or other interface protocol) . In some examples, network entities 105 may communicate with one another via backhaul communication link (s) 120 (e.g., in accordance with an X2, Xn, or other interface protocol) either directly (e.g., directly between network entities 105) or indirectly (e.g., via the core network 130) . In some examples, network entities 105 may communicate with one another via a midhaul communication link 162 (e.g., in accordance with a midhaul interface protocol) or a fronthaul communication link 168 (e.g., in accordance with a fronthaul interface protocol) , or any combination thereof. The backhaul communication link (s) 120, midhaul communication links 162, or fronthaul communication links 168 may be or include one or more wired links (e.g., an electrical link, an optical fiber link) or one or more wireless links (e.g., a radio link, a wireless optical link) , among other examples or various combinations thereof. A UE 115 may communicate with the core network 130 via a communication link 155.
[0084] One or more of the network entities 105 or network equipment described herein may include or may be referred to as a base station 140 (e.g., a base transceiver station, a radio base station, an NR base station, an access point, a radio transceiver, a NodeB, an eNodeB (eNB) , a next-generation NodeB or giga-NodeB (either of which may be referred to as a gNB) , a 5G NB, a next-generation eNB (ng-eNB) , a Home NodeB, a Home eNodeB, or other suitable terminology) . In some examples, a network entity 105 (e.g., a base station 140) may be implemented in an aggregated (e.g., monolithic, standalone) base station architecture, which may be configured to utilize a protocol stack that is physically or logically integrated within one network entity (e.g., a network entity 105 or a single RAN node, such as a base station 140) .
[0085] As described herein, a node, which may be referred to as a node, a network node, a network entity, or a wireless node, may be a base station (e.g., any base station described herein) , a UE (e.g., any UE described herein) , a network controller, an apparatus, a device, a computing system, one or more components, and / or another suitable processing entity configured to perform any of the techniques described herein. For example, a network node may be a UE. As another example, a network node may be a base station. As another example, a first network node may be configured to communicate with a second network node or a third network node. In one aspect of this example, the first network node may be a UE, the second network node may be a base station, and the third network node may be a UE. In another aspect of this example, the first network node may be a UE, the second network node may be a base station, and the third network node may be a base station. In yet other aspects of this example, the first, second, and third network nodes may be different relative to these examples. Similarly, reference to a UE, base station, apparatus, device, computing system, or the like may include disclosure of the UE, base station, apparatus, device, computing system, or the like being a network node. For example, disclosure that a UE is configured to receive information from a base station also discloses that a first network node is configured to receive information from a second network node. Consistent with this disclosure, once a specific example is broadened in accordance with this disclosure (e.g., a UE is configured to receive information from a base station also discloses that a first network node is configured to receive information from a second network node) , the broader example of the narrower example may be interpreted in the reverse, but in a broad open-ended way. In the example above where a UE being configured to receive information from a base station also discloses that a first network node being configured to receive information from a second network node, the first network node may refer to a first UE, a first base station, a first apparatus, a first device, a first computing system, a first one or more components, a first processing entity, or the like configured to receive the information; and the second network node may refer to a second UE, a second base station, a second apparatus, a second device, a second computing system, a second one or more components, a second processing entity, or the like.
[0086] As described herein, communication of information (e.g., any information, signal, or the like) may be described in various aspects using different terminology. Disclosure of one communication term includes disclosure of other communication terms. For example, a first network node may be described as being configured to transmit information to a second network node. In this example and consistent with this disclosure, disclosure that the first network node is configured to transmit information to the second network node includes disclosure that the first network node is configured to provide, send, output, communicate, or transmit information to the second network node. Similarly, in this example and consistent with this disclosure, disclosure that the first network node is configured to transmit information to the second network node includes disclosure that the second network node is configured to receive, obtain, or decode the information that is provided, sent, output, communicated, or transmitted by the first network node.
[0087] In some examples, a network entity 105 may be implemented in a disaggregated architecture (e.g., a disaggregated base station architecture, a disaggregated RAN architecture) , which may be configured to utilize a protocol stack that is physically or logically distributed among multiple network entities (e.g., network entities 105) , such as an integrated access and backhaul (IAB) network, an open RAN (O-RAN) (e.g., a network configuration sponsored by the O-RAN Alliance) , or a virtualized RAN (vRAN) (e.g., a cloud RAN (C-RAN) ) . For example, a network entity 105 may include one or more of a central unit (CU) , such as a CU 160, a distributed unit (DU) , such as a DU 165, a radio unit (RU) , such as an RU 170, a RAN Intelligent Controller (RIC) , such as an RIC 175 (e.g., a Near-Real Time RIC (Near-RT RIC) , a Non-Real Time RIC (Non-RT RIC) ) , a Service Management and Orchestration (SMO) system, such as an SMO system 180, or any combination thereof. An RU 170 may also be referred to as a radio head, a smart radio head, a remote radio head (RRH) , a remote radio unit (RRU) , or a transmission reception point (TRP) . One or more components of the network entities 105 in a disaggregated RAN architecture may be co-located, or one or more components of the network entities 105 may be located in distributed locations (e.g., separate physical locations) . In some examples, one or more of the network entities 105 of a disaggregated RAN architecture may be implemented as virtual units (e.g., a virtual CU (VCU) , a virtual DU (VDU) , a virtual RU (VRU) ) .
[0088] The split of functionality between a CU 160, a DU 165, and an RU 170 is flexible and may support different functionalities depending on which functions (e.g., network layer functions, protocol layer functions, baseband functions, RF functions, or any combinations thereof) are performed at a CU 160, a DU 165, or an RU 170. For example, a functional split of a protocol stack may be employed between a CU 160 and a DU 165 such that the CU 160 may support one or more layers of the protocol stack and the DU 165 may support one or more different layers of the protocol stack. In some examples, the CU 160 may host upper protocol layer (e.g., L3 (L3) , layer 2 (L2) ) functionality and signaling (e.g., Radio Resource Control (RRC) , service data adaptation protocol (SDAP) , Packet Data Convergence Protocol (PDCP) ) . The CU 160 (e.g., one or more CUs) may be connected to a DU 165 (e.g., one or more DUs) or an RU 170 (e.g., one or more RUs) , or some combination thereof, and the DUs 165, RUs 170, or both may host lower protocol layers, such as L1 (L1) (e.g., physical (PHY) layer) or L2 (e.g., radio link control (RLC) layer, medium access control (MAC) layer) functionality and signaling, and may each be at least partially controlled by the CU 160. Additionally, or alternatively, a functional split of the protocol stack may be employed between a DU 165 and an RU 170 such that the DU 165 may support one or more layers of the protocol stack and the RU 170 may support one or more different layers of the protocol stack. The DU 165 may support one or multiple different cells (e.g., via one or multiple different RUs, such as an RU 170) . In some cases, a functional split between a CU 160 and a DU 165 or between a DU 165 and an RU 170 may be within a protocol layer (e.g., some functions for a protocol layer may be performed by one of a CU 160, a DU 165, or an RU 170, while other functions of the protocol layer are performed by a different one of the CU 160, the DU 165, or the RU 170) . A CU 160 may be functionally split further into CU control plane (CU-CP) and CU user plane (CU-UP) functions. A CU 160 may be connected to a DU 165 via a midhaul communication link 162 (e.g., F1, F1-c, F1-u) , and a DU 165 may be connected to an RU 170 via a fronthaul communication link 168 (e.g., open fronthaul (FH) interface) . In some examples, a midhaul communication link 162 or a fronthaul communication link 168 may be implemented in accordance with an interface (e.g., a channel) between layers of a protocol stack supported by respective network entities (e.g., one or more of the network entities 105) that are in communication via such communication links.
[0089] In some wireless communications systems (e.g., the wireless communications system 100) , infrastructure and spectral resources for radio access may support wireless backhaul link capabilities to supplement wired backhaul connections, providing an IAB network architecture (e.g., to a core network 130) . In some cases, in an IAB network, one or more of the network entities 105 (e.g., network entities 105 or IAB node (s) 104) may be partially controlled by each other. The IAB node (s) 104 may be referred to as a donor entity or an IAB donor. A DU 165 or an RU 170 may be partially controlled by a CU 160 associated with a network entity 105 or base station 140 (such as a donor network entity or a donor base station) . The one or more donor entities (e.g., IAB donors) may be in communication with one or more additional devices (e.g., IAB node (s) 104) via supported access and backhaul links (e.g., backhaul communication link (s) 120) . IAB node (s) 104 may include an IAB mobile termination (IAB-MT) controlled (e.g., scheduled) by one or more DUs (e.g., DUs 165) of a coupled IAB donor. An IAB-MT may be equipped with an independent set of antennas for relay of communications with UEs 115 or may share the same antennas (e.g., of an RU 170) of IAB node (s) 104 used for access via the DU 165 of the IAB node (s) 104 (e.g., referred to as virtual IAB-MT (vIAB-MT) ) . In some examples, the IAB node (s) 104 may include one or more DUs (e.g., DUs 165) that support communication links with additional entities (e.g., IAB node (s) 104, UEs 115) within the relay chain or configuration of the access network (e.g., downstream) . In such cases, one or more components of the disaggregated RAN architecture (e.g., the IAB node (s) 104 or components of the IAB node (s) 104) may be configured to operate according to the techniques described herein.
[0090] For instance, an access network (AN) or RAN may include communications between access nodes (e.g., an IAB donor) , IAB node (s) 104, and one or more UEs 115. The IAB donor may facilitate connection between the core network 130 and the AN (e.g., via a wired or wireless connection to the core network 130) . That is, an IAB donor may refer to a RAN node with a wired or wireless connection to the core network 130. The IAB donor may include one or more of a CU 160, a DU 165, and an RU 170, in which case the CU 160 may communicate with the core network 130 via an interface (e.g., a backhaul link) . The IAB donor and IAB node (s) 104 may communicate via an F1 interface according to a protocol that defines signaling messages (e.g., an F1 AP protocol) . Additionally, or alternatively, the CU 160 may communicate with the core network 130 via an interface, which may be an example of a portion of a backhaul link, and may communicate with other CUs (e.g., including a CU 160 associated with an alternative IAB donor) via an Xn-C interface, which may be an example of another portion of a backhaul link.
[0091] IAB node (s) 104 may refer to RAN nodes that provide IAB functionality (e.g., access for UEs 115, wireless self-backhauling capabilities) . A DU 165 may act as a distributed scheduling node towards child nodes associated with the IAB node (s) 104, and the IAB-MT may act as a scheduled node towards parent nodes associated with IAB node (s) 104. That is, an IAB donor may be referred to as a parent node in communication with one or more child nodes (e.g., an IAB donor may relay transmissions for UEs through other IAB node (s) 104) . Additionally, or alternatively, IAB node (s) 104 may also be referred to as parent nodes or child nodes to other IAB node (s) 104, depending on the relay chain or configuration of the AN. The IAB-MT entity of IAB node (s) 104 may provide a Uu interface for a child IAB node (e.g., the IAB node (s) 104) to receive signaling from a parent IAB node (e.g., the IAB node (s) 104) , and a DU interface (e.g., a DU 165) may provide a Uu interface for a parent IAB node to signal to a child IAB node or UE 115.
[0092] For example, IAB node (s) 104 may be referred to as parent nodes that support communications for child IAB nodes, or may be referred to as child IAB nodes associated with IAB donors, or both. An IAB donor may include a CU 160 with a wired or wireless connection (e.g., backhaul communication link (s) 120) to the core network 130 and may act as a parent node to IAB node (s) 104. For example, the DU 165 of an IAB donor may relay transmissions to UEs 115 through IAB node (s) 104, or may directly signal transmissions to a UE 115, or both. The CU 160 of the IAB donor may signal communication link establishment via an F1 interface to IAB node (s) 104, and the IAB node (s) 104 may schedule transmissions (e.g., transmissions to the UEs 115 relayed from the IAB donor) through one or more DUs (e.g., DUs 165) . That is, data may be relayed to and from IAB node (s) 104 via signaling via an NR Uu interface to MT of IAB node (s) 104 (e.g., other IAB node (s) ) . Communications with IAB node (s) 104 may be scheduled by a DU 165 of the IAB donor or of IAB node (s) 104.
[0093] In the case of the techniques described herein applied in the context of a disaggregated RAN architecture, one or more components of the disaggregated RAN architecture may be configured to support LP-WUSs for network energy savings as described herein. For example, some operations described as being performed by a UE 115 or a network entity 105 (e.g., a base station 140) may additionally, or alternatively, be performed by one or more components of the disaggregated RAN architecture (e.g., components such as an IAB node, a DU 165, a CU 160, an RU 170, an RIC 175, an SMO system 180) .
[0094] Techniques described herein, in addition to or as an alternative to be carried out between UEs 115 and base stations 105, may be implemented via additional or alternative wireless devices, including IAB nodes 104, DUs 165, CUs 160, RUs 170, and the like. For example, in some implementations, aspects described herein may be implemented in the context of a disaggregated radio access network (RAN) architecture (e.g., open RAN architecture) . In a disaggregated architecture, the RAN may be split into three areas of functionality corresponding to the CU 160, the DU 165, and the RU 170. The split of functionality between the CU 160, DU 165, and RU 170 is flexible and as such gives rise to numerous permutations of different functionalities depending upon which functions (e.g., MAC functions, baseband functions, radio frequency functions, and any combinations thereof) are performed at the CU 160, DU 165, and RU 170. For example, a functional split of the protocol stack may be employed between a DU 165 and an RU 170 such that the DU 165 may support one or more layers of the protocol stack and the RU 170 may support one or more different layers of the protocol stack.
[0095] Some wireless communications systems (e.g., wireless communications system 100) , infrastructure and spectral resources for NR access may additionally support wireless backhaul link capabilities in supplement to wireline backhaul connections, providing an IAB network architecture. One or more base stations 105 may include CUs 160, DUs 165, and RUs 170 and may be referred to as donor base stations 105 or IAB donors. One or more DUs 165 (e.g., and / or RUs 170) associated with a donor base station 105 may be partially controlled by CUs 160 associated with the donor base station 105. The one or more donor base stations 105 (e.g., IAB donors) may be in communication with one or more additional base stations 105 (e.g., IAB nodes 104) via supported access and backhaul links. IAB nodes 104 may support mobile terminal (MT) functionality controlled and / or scheduled by DUs 165 of a coupled IAB donor. In addition, the IAB nodes 104 may include DUs 165 that support communication links with additional entities (e.g., IAB nodes 104, UEs 115, etc. ) within the relay chain or configuration of the access network (e.g., downstream) . In such cases, one or more components of the disaggregated RAN architecture (e.g., one or more IAB nodes 104 or components of IAB nodes 104) may be configured to operate according to the techniques described herein.
[0096] In some examples, the wireless communications system 100 may include a core network 130 (e.g., a next generation core network (NGC) ) , one or more IAB donors, IAB nodes 104, and UEs 115, where IAB nodes 104 may be partially controlled by each other and / or the IAB donor. The IAB donor and IAB nodes 104 may be examples of aspects of base stations 105. IAB donor and one or more IAB nodes 104 may be configured as (e.g., or in communication according to) some relay chain.
[0097] For instance, the AN or RAN may refer to communications between access nodes (e.g., IAB donor) , IAB nodes 104, and one or more UEs 115. The IAB donor may facilitate connection between the core network 130 and the AN (e.g., via a wireline or wireless connection to the core network 130) . That is, an IAB donor may refer to a RAN node with a wireline or wireless connection to core network 130. The IAB donor may include a CU 160 and at least one DU 165 (e.g., and RU 170) , where the CU 160 may communicate with the core network 130 over an NG interface (e.g., some backhaul link) . The CU 160 may host layer 3 (L3) (e.g., RRC, service data adaption protocol (SDAP) , PDCP, etc. ) functionality and signaling. The at least one DU 165 and / or RU 170 may host lower layer, such as layer 1 (L1) and layer 2 (L2) (e.g., RLC, MAC, physical (PHY) , etc. ) functionality and signaling, and may each be at least partially controlled by the CU 160. The DU 165 may support one or multiple different cells. IAB donor and IAB nodes 104 may communicate over an F1 interface according to some protocol that defines signaling messages (e.g., F1 AP protocol) . Additionally, CU 160 may communicate with the core network over an NG interface (which may be an example of a portion of backhaul link) , and may communicate with other CUs 160 (e.g., a CU 160 associated with an alternative IAB donor) over an Xn-C interface (which may be an example of a portion of a backhaul link) .
[0098] IAB nodes 104 may refer to a RAN node that provides IAB functionality (e.g., access for UEs 115, wireless self-backhauling capabilities, etc. ) . IAB nodes 104 may include a DU 165 and an MT. A DU 165 may act as a distributed scheduling node towards child nodes associated with the IAB node 104, and the MT may act as a scheduled node towards parent nodes associated with the IAB node 104. That is, an IAB donor may be referred to as a parent node in communication with one or more child nodes (e.g., an IAB donor may relay transmissions for UEs through one or more other IAB nodes 104) . Additionally, an IAB node 104 may also be referred to as a parent node or a child node to other IAB nodes 104, depending on the relay chain or configuration of the AN. Therefore, the MT entity of IAB nodes 104 (e.g., MTs) may provide a Uu interface for a child node to receive signaling from a parent IAB node 104, and the DU interface (e.g., DUs 165) may provide a Uu interface for a parent node to signal to a child IAB node 104 or UE 115.
[0099] For example, IAB node 104 may be referred to a parent node associated with IAB node, and a child node associated with IAB donor. The IAB donor may include a CU 160 with a wireline (e.g., optical fiber) or wireless connection to the core network and may act as parent node to IAB nodes 104. For example, the DU 165 of IAB donor may relay transmissions to UEs 115 through IAB nodes 104, and may directly signal transmissions to a UE 115. The CU 160 of IAB donor may signal communication link establishment via an F1 interface to IAB nodes 104, and the IAB nodes 104 may schedule transmissions (e.g., transmissions to the UEs 115 relayed from the IAB donor) through the DUs 165. That is, data may be relayed to and from IAB nodes 104 via signaling over an NR Uu interface to MT of the IAB node 104. Communications with IAB node 104 may be scheduled by DU 165 of IAB donor and communications with IAB node 104 may be scheduled by DU 165 of IAB node 104.
[0100] In the case of the techniques described herein applied in the context of a disaggregated RAN architecture, one or more components of the disaggregated RAN architecture (e.g., one or more IAB nodes 104 or components of IAB nodes 104) may be configured to support techniques for large round trip times in random access channel procedures as described herein. For example, some operations described as being performed by a UE 115 or a base station 105 may additionally or alternatively be performed by components of the disaggregated RAN architecture (e.g., IAB nodes, DUs, CUs, etc. ) .
[0101] A UE 115 may include or may be referred to as a mobile device, a wireless device, a remote device, a handheld device, or a subscriber device, or some other suitable terminology, where the “device” may also be referred to as a unit, a station, a terminal, or a client, among other examples. A UE 115 may also include or may be referred to as 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, a UE 115 may include or be referred to as a wireless local loop (WLL) station, an Internet of Things (IoT) device, an Internet of Everything (IoE) device, or a machine type communications (MTC) device, among other examples, which may be implemented in various objects such as appliances, vehicles, or meters, among other examples.
[0102] The UEs 115 described herein may be able to communicate with various types of devices, such as UEs 115 that may sometimes operate as relays, as well as the network entities 105 and the network equipment including macro eNBs or gNBs, small cell eNBs or gNBs, or relay base stations, among other examples, as shown in FIG. 1.
[0103] The UEs 115 and the network entities 105 may wirelessly communicate with one another via the communication link (s) 125 (e.g., one or more access links) using resources associated with one or more carriers. The term “carrier” may refer to a set of RF spectrum resources having a defined PHY layer structure for supporting the communication link (s) 125. For example, a carrier used for the communication link (s) 125 may include a portion of an RF spectrum band (e.g., a bandwidth part (BWP) ) that is operated according to one or more PHY layer channels for a given RAT (e.g., LTE, LTE-A, LTE-A Pro, NR) . Each PHY layer channel may carry acquisition signaling (e.g., synchronization signals, system information) , control signaling that coordinates operation for the carrier, user data, or other signaling. The wireless communications system 100 may support communication with a UE 115 using carrier aggregation or multi-carrier operation. A UE 115 may be configured with multiple downlink component carriers and one or more uplink component carriers according to a carrier aggregation configuration. Carrier aggregation may be used with both frequency division duplexing (FDD) and time division duplexing (TDD) component carriers. Communication between a network entity 105 and other devices may refer to communication between the devices and any portion (e.g., entity, sub-entity) of a network entity 105. For example, the terms “transmitting, ” “receiving, ” or “communicating, ” when referring to a network entity 105, may refer to any portion of a network entity 105 (e.g., a base station 140, a CU 160, a DU 165, a RU 170) of a RAN communicating with another device (e.g., directly or via one or more other network entities, such as one or more of the network entities 105) .
[0104] Signal waveforms transmitted via a carrier may be made up of multiple subcarriers (e.g., using multi-carrier modulation (MCM) techniques such as orthogonal frequency division multiplexing (OFDM) or discrete Fourier transform spread OFDM (DFT-S-OFDM) ) . In a system employing MCM techniques, a resource element may refer to resources of one symbol period (e.g., a duration of one modulation symbol) and one subcarrier, in which case the symbol period and subcarrier spacing may be inversely related. The quantity of bits carried by each resource element may depend on the modulation scheme (e.g., the order of the modulation scheme, the coding rate of the modulation scheme, or both) , such that a relatively higher quantity of resource elements (e.g., in a transmission duration) and a relatively higher order of a modulation scheme may correspond to a relatively higher rate of communication. A wireless communications resource may refer to a combination of an RF spectrum resource, a time resource, and a spatial resource (e.g., a spatial layer, a beam) , and the use of multiple spatial resources may increase the data rate or data integrity for communications with a UE 115.
[0105] The time intervals for the network entities 105 or the UEs 115 may be expressed in multiples of a basic time unit which may, for example, refer to a sampling period of Ts=1 / (Δfmax·Nf) seconds, for which Δfmax may represent a supported subcarrier spacing, and Nf may represent a supported discrete Fourier transform (DFT) size. Time intervals of a communications resource may be organized according to radio frames each having a specified duration (e.g., 10 milliseconds (ms) ) . Each radio frame may be identified by a system frame number (SFN) (e.g., ranging from 0 to 1023) .
[0106] Each frame may include multiple consecutively-numbered subframes or slots, and each subframe or slot may have the same duration. In some examples, a frame may be divided (e.g., in the time domain) into subframes, and each subframe may be further divided into a quantity of slots. Alternatively, each frame may include a variable quantity of slots, and the quantity of slots may depend on subcarrier spacing. Each slot may include a quantity of symbol periods (e.g., depending on the length of the cyclic prefix prepended to each symbol period) . In some wireless communications systems, such as the wireless communications system 100, a slot may further be divided into multiple mini-slots associated with one or more symbols. Excluding the cyclic prefix, each symbol period may be associated with one or more (e.g., Nf) sampling periods. The duration of a symbol period may depend on the subcarrier spacing or frequency band of operation.
[0107] A subframe, a slot, a mini-slot, or a symbol may be the smallest scheduling unit (e.g., in the time domain) of the wireless communications system 100 and may be referred to as a transmission time interval (TTI) . In some examples, the TTI duration (e.g., a quantity of symbol periods in a TTI) may be variable. Additionally, or alternatively, the smallest scheduling unit of the wireless communications system 100 may be dynamically selected (e.g., in bursts of shortened TTIs (sTTIs) ) .
[0108] Physical channels may be multiplexed for communication using a carrier according to various techniques. A physical control channel and a physical data channel may be multiplexed for signaling via a downlink carrier, for example, using one or more of time division multiplexing (TDM) techniques, frequency division multiplexing (FDM) techniques, or hybrid TDM-FDM techniques. A control region (e.g., a control resource set (CORESET) ) for a physical control channel may be defined by a set of symbol periods and may extend across the system bandwidth or a subset of the system bandwidth of the carrier. One or more control regions (e.g., CORESETs) may be configured for a set of the UEs 115. For example, one or more of the UEs 115 may monitor or search control regions for control information according to one or more search space sets, and each search space set may include one or multiple control channel candidates in one or more aggregation levels arranged in a cascaded manner. An aggregation level for a control channel candidate may refer to an amount of control channel resources (e.g., control channel elements (CCEs) ) associated with encoded information for a control information format having a given payload size. Search space sets may include common search space sets configured for sending control information to UEs 115 (e.g., one or more UEs) or may include UE-specific search space sets for sending control information to a UE 115 (e.g., a specific UE) .
[0109] In some examples, a network entity 105 (e.g., a base station 140, an RU 170) may be movable and therefore provide communication coverage for a moving coverage area, such as the coverage area 110. In some examples, coverage areas 110 (e.g., different coverage areas) associated with different technologies may overlap, but the coverage areas 110 (e.g., different coverage areas) may be supported by the same network entity (e.g., a network entity 105) . In some other examples, overlapping coverage areas, such as a coverage area 110, associated with different technologies may be supported by different network entities (e.g., the network entities 105) . The wireless communications system 100 may include, for example, a heterogeneous network in which different types of the network entities 105 support communications for coverage areas 110 (e.g., different coverage areas) using the same or different RATs.
[0110] The wireless communications system 100 may be configured to support ultra-reliable communications or low-latency communications, or various combinations thereof. For example, the wireless communications system 100 may be configured to support ultra-reliable low-latency communications (URLLC) . The UEs 115 may be designed to support ultra-reliable, low-latency, or critical functions. Ultra-reliable communications may include private communication or group communication and may be supported by one or more services such as push-to-talk, video, or data. Support for ultra-reliable, low-latency functions may include prioritization of services, and such services may be used for public safety or general commercial applications. The terms ultra-reliable, low-latency, and ultra-reliable low-latency may be used interchangeably herein.
[0111] In some examples, a UE 115 may be configured to support communicating directly with other UEs (e.g., one or more of the UEs 115) via a device-to-device (D2D) communication link, such as a D2D communication link 135 (e.g., in accordance with a peer-to-peer (P2P) , D2D, or sidelink protocol) . In some examples, one or more UEs 115 of a group that are performing D2D communications may be within the coverage area 110 of a network entity 105 (e.g., a base station 140, an RU 170) , which may support aspects of such D2D communications being configured by (e.g., scheduled by) the network entity 105. In some examples, one or more UEs 115 of such a group may be outside the coverage area 110 of a network entity 105 or may be otherwise unable to or not configured to receive transmissions from a network entity 105. In some examples, groups of the UEs 115 communicating via D2D communications may support a one-to-many (1: M) system in which each UE 115 transmits to one or more of the UEs 115 in the group. In some examples, a network entity 105 may facilitate the scheduling of resources for D2D communications. In some other examples, D2D communications may be carried out between the UEs 115 without an involvement of a network entity 105.
[0112] The core network 130 may provide user authentication, access authorization, tracking, Internet Protocol (IP) connectivity, and other access, routing, or mobility functions. The core network 130 may be an evolved packet core (EPC) or 5G core (5GC) , which may include at least one control plane entity that manages access and mobility (e.g., a mobility management entity (MME) , an access and mobility management function (AMF) ) and at least one user plane entity that routes packets or interconnects to external networks (e.g., a serving gateway (S-GW) , a Packet Data Network (PDN) gateway (P-GW) , or a user plane function (UPF) ) . The control plane entity may manage non-access stratum (NAS) functions such as mobility, authentication, and bearer management for the UEs 115 served by the network entities 105 (e.g., base stations 140) associated with the core network 130. User IP packets may be transferred through the user plane entity, which may provide IP address allocation as well as other functions. The user plane entity may be connected to IP services 150 for one or more network operators. The IP services 150 may include access to the Internet, Intranet (s) , an IP Multimedia Subsystem (IMS) , or a Packet-Switched Streaming Service.
[0113] The wireless communications system 100 may operate using one or more frequency bands, which may be in the range of 300 megahertz (MHz) to 300 gigahertz (GHz) . Generally, the region from 300 MHz to 3 GHz is known as the ultra-high frequency (UHF) region or decimeter band because the wavelengths range from approximately one decimeter to one meter in length. UHF waves may be blocked or redirected by buildings and environmental features, which may be referred to as clusters, but the waves may penetrate structures sufficiently for a macro cell to provide service to the UEs 115 located indoors. Communications using UHF waves may be associated with smaller antennas and shorter ranges (e.g., less than one hundred kilometers) compared to communications using the smaller frequencies and longer waves of the high frequency (HF) or very high frequency (VHF) portion of the spectrum below 300 MHz.
[0114] The wireless communications system 100 may utilize both licensed and unlicensed RF spectrum bands. For example, the wireless communications system 100 may employ License Assisted Access (LAA) , LTE-Unlicensed (LTE-U) RAT, or NR technology using an unlicensed band such as the 5 GHz industrial, scientific, and medical (ISM) band. While operating using unlicensed RF spectrum bands, devices such as the network entities 105 and the UEs 115 may employ carrier sensing for collision detection and avoidance. In some examples, operations using unlicensed bands may be based on a carrier aggregation configuration in conjunction with component carriers operating using a licensed band (e.g., LAA) . Operations using unlicensed spectrum may include downlink transmissions, uplink transmissions, P2P transmissions, or D2D transmissions, among other examples.
[0115] The electromagnetic spectrum is often subdivided, based on frequency / wavelength, into various classes, bands, channels, etc. In 5G NR two initial operating bands have been identified as frequency range designations FR1 (410 MHz –7.125 GHz) and FR2 (24.25 GHz –52.6 GHz) . It should be understood that although a portion of FR1 is greater than 6 GHz, FR1 is often referred to (interchangeably) as a “Sub-6 GHz” band in various documents and articles. A similar nomenclature issue sometimes occurs with regard to FR2, which is often referred to (interchangeably) as a “millimeter wave” band in documents and articles, despite being different from the extremely high frequency (EHF) band (30 GHz –300 GHz) which is identified by the International Telecommunications Union (ITU) as a “millimeter wave” band.
[0116] The frequencies between FR1 and FR2 are often referred to as mid-band frequencies. Recent 5G NR studies have identified an operating band for these mid-band frequencies as frequency range designation FR3 (7.125 GHz –24.25 GHz) . Frequency bands falling within FR3 may inherit FR1 characteristics and / or FR2 characteristics, and thus may effectively extend features of FR1 and / or FR2 into mid-band frequencies. In addition, higher frequency bands are currently being explored to extend 5G NR operation beyond 52.6 GHz. For example, three higher operating bands have been identified as frequency range designations FR4a or FR4-1 (52.6 GHz –71 GHz) , FR4 (52.6 GHz –114.25 GHz) , and FR5 (114.25 GHz –300 GHz) . Each of these higher frequency bands falls within the EHF band.
[0117] With the above aspects in mind, unless specifically stated otherwise, it should be understood that the term “sub-6 GHz” or the like if used herein may broadly represent frequencies that may be less than 6 GHz, may be within FR1, or may include mid-band frequencies. Further, unless specifically stated otherwise, it should be understood that the term “millimeter wave” or the like if used herein may broadly represent frequencies that may include mid-band frequencies, may be within FR2, FR4, FR4-a or FR4-1, and / or FR5, or may be within the EHF band.
[0118] A network entity 105 (e.g., a base station 140, an RU 170) or a 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) communications, or beamforming. The antennas of a network entity 105 or a UE 115 may be located within one or more antenna arrays or antenna panels, which may support MIMO operations or transmit or receive beamforming. For example, one or more base station antennas or antenna arrays may be co-located at an antenna assembly, such as an antenna tower. In some examples, antennas or antenna arrays associated with a network entity 105 may be located at diverse geographic locations. A network entity 105 may include an antenna array with a set of rows and columns of antenna ports that the network entity 105 may use to support beamforming of communications with a UE 115. Likewise, a UE 115 may include one or more antenna arrays that may support various MIMO or beamforming operations. Additionally, or alternatively, an antenna panel may support RF beamforming for a signal transmitted via an antenna port.
[0119] Beamforming, which may also be referred to as spatial filtering, directional transmission, or directional reception, is a signal processing technique that may be used at a transmitting device or a receiving device (e.g., a network entity 105, a UE 115) to shape or steer an antenna beam (e.g., a transmit beam, a receive beam) along a spatial path between the transmitting device and the receiving device. Beamforming may be achieved by combining the signals communicated via antenna elements of an antenna array such that some signals propagating along particular orientations with respect to an antenna array experience constructive interference while others experience destructive interference. The adjustment of signals communicated via the antenna elements may include a transmitting device or a receiving device applying amplitude offsets, phase offsets, or both to signals carried via the antenna elements associated with the device. The adjustments associated with each of the antenna elements may be defined by a beamforming weight set associated with a particular orientation (e.g., with respect to the antenna array of the transmitting device or receiving device, or with respect to some other orientation) .
[0120] The techniques, methods, and devices described herein provide for the network entity 105 to convey a bit value of ‘0’ as an absence of energy during a time duration, which may provide for flexibility and higher network energy efficiency for transmission of the LP-WUS. To facilitate such communications, the network entity 105 may transmit, to one or more UEs 115, control signaling that indicates a configuration for the LP-WUS, wherein the configuration indicates that a first bit value (e.g., ‘1’ ) corresponds to a first waveform type (e.g., transition from the first energy state to the second energy state) and indicates that a second bit value (e.g., ‘0’ ) corresponds to one of a second waveform type (e.g., the second energy state, the absence of energy) or a third waveform type (e.g., transition from the second energy state to the first energy state) . According to the configuration, the network entity 105 may generate the LP-WUS, for example, by mapping each bit of the set of bits to a respective waveform (e.g., one of the first waveform type, the second waveform type, or the third waveform type) according to the bit values of each bit. The network entity 105 may transmit the LP-WUS to one or more UEs 115 according to generating the LP-WUS.
[0121] FIG. 2 shows an example of a network architecture 200 (e.g., a disaggregated base station architecture, a disaggregated RAN architecture) that supports LP-WUSs for network energy savings in accordance with one or more aspects of the present disclosure. The network architecture 200 may illustrate an example for implementing one or more aspects of the wireless communications system 100. The network architecture 200 may include one or more CUs 160-a that may communicate directly with a core network 130-a via a backhaul communication link 120-a, or indirectly with the core network 130-a through one or more disaggregated network entities 105 (e.g., a Near-RT RIC 175-b via an E2 link, or a Non-RT RIC 175-aassociated with an SMO 180-a (e.g., an SMO Framework) , or both) . A CU 160-a may communicate with one or more DUs 165-a via respective midhaul communication links 162-a (e.g., an F1 interface) . The DUs 165-a may communicate with one or more RUs 170-a via respective fronthaul communication links 168-a. The RUs 170-a may be associated with respective coverage areas 110-a and may communicate with UEs 115-a via one or more communication links 125-a. In some implementations, a UE 115-a may be simultaneously served by multiple RUs 170-a.
[0122] Each of the network entities 105 of the network architecture 200 (e.g., CUs 160-a, DUs 165-a, RUs 170-a, Non-RT RICs 175-a, Near-RT RICs 175-b, SMOs 180-a, Open Clouds (O-Clouds) 205, Open eNBs (O-eNBs) 210) may include one or more interfaces or may be coupled with one or more interfaces configured to receive or transmit signals (e.g., data, information) via a wired or wireless transmission medium. Each network entity 105, or an associated processor (e.g., controller) providing instructions to an interface of the network entity 105, may be configured to communicate with one or more of the other network entities 105 via the transmission medium. For example, the network entities 105 may include a wired interface configured to receive or transmit signals over a wired transmission medium to one or more of the other network entities 105. Additionally, or alternatively, the network entities 105 may include a wireless interface, which may include a receiver, a transmitter, or transceiver (e.g., an RF transceiver) configured to receive or transmit signals, or both, over a wireless transmission medium to one or more of the other network entities 105.
[0123] In some examples, a CU 160-a may host one or more higher layer control functions. Such control functions may include RRC, PDCP, SDAP, or the like. Each control function may be implemented with an interface configured to communicate signals with other control functions hosted by the CU 160-a. A CU 160-a may be configured to handle user plane functionality (e.g., CU-UP) , control plane functionality (e.g., CU-CP) , or a combination thereof. In some examples, a CU 160-a may be logically split into one or more CU-UP units and one or more CU-CP units. A CU-UP unit may communicate bidirectionally with the CU-CP unit via an interface, such as an E1 interface when implemented in an O-RAN configuration. A CU 160-a may be implemented to communicate with a DU 165-a, as necessary, for network control and signaling.
[0124] A DU 165-a may correspond to a logical unit that includes one or more functions (e.g., base station functions, RAN functions) to control the operation of one or more RUs 170-a. In some examples, a DU 165-a may host, at least partially, one or more of an RLC layer, a MAC layer, and one or more aspects of a PHY layer (e.g., a high PHY layer, such as modules for FEC encoding and decoding, scrambling, modulation and demodulation, or the like) depending, at least in part, on a functional split, such as those defined by the 3rd Generation Partnership Project (3GPP) . In some examples, a DU 165-a may further host one or more low PHY layers. Each layer may be implemented with an interface configured to communicate signals with other layers hosted by the DU 165-a, or with control functions hosted by a CU 160-a.
[0125] In some examples, lower-layer functionality may be implemented by one or more RUs 170-a. For example, an RU 170-a, controlled by a DU 165-a, may correspond to a logical node that hosts RF processing functions, or low-PHY layer functions (e.g., performing fast Fourier transform (FFT) , inverse FFT (iFFT) , digital beamforming, physical random access channel (PRACH) extraction and filtering, or the like) , or both, based at least in part on the functional split, such as a lower-layer functional split. In such an architecture, an RU 170-a may be implemented to handle over the air (OTA) communication with one or more UEs 115-a. In some implementations, real-time and non-real-time aspects of control and user plane communication with the RU (s) 170-amay be controlled by the corresponding DU 165-a. In some examples, such a configuration may enable a DU 165-a and a CU 160-a to be implemented in a cloud-based RAN architecture, such as a vRAN architecture.
[0126] The SMO 180-a may be configured to support RAN deployment and provisioning of non-virtualized and virtualized network entities 105. For non-virtualized network entities 105, the SMO 180-a may be configured to support the deployment of dedicated physical resources for RAN coverage requirements which may be managed via an operations and maintenance interface (e.g., an O1 interface) . For virtualized network entities 105, the SMO 180-a may be configured to interact with a cloud computing platform (e.g., an O-Cloud 205) to perform network entity life cycle management (e.g., to instantiate virtualized network entities 105) via a cloud computing platform interface (e.g., an O2 interface) . Such virtualized network entities 105 can include, but are not limited to, CUs 160-a, DUs 165-a, RUs 170-a, and Near-RT RICs 175-b. In some implementations, the SMO 180-a may communicate with components configured in accordance with a 4G RAN (e.g., via an O1 interface) . Additionally, or alternatively, in some implementations, the SMO 180-a may communicate directly with one or more RUs 170-a via an O1 interface. The SMO 180-a also may include a Non-RT RIC 175-a configured to support functionality of the SMO 180-a.
[0127] The Non-RT RIC 175-a may be configured to include a logical function that enables non-real-time control and optimization of RAN elements and resources, Artificial Intelligence (AI) or Machine Learning (ML) workflows including model training and updates, or policy-based guidance of applications / features in the Near-RT RIC 175-b. The Non-RT RIC 175-a may be coupled to or communicate with (e.g., via an A1 interface) the Near-RT RIC 175-b. The Near-RT RIC 175-b may be configured to include a logical function that enables near-real-time control and optimization of RAN elements and resources via data collection and actions over an interface (e.g., via an E2 interface) connecting one or more CUs 160-a, one or more DUs 165-a, or both, as well as an O-eNB 210, with the Near-RT RIC 175-b.
[0128] In some examples, to generate AI / ML models to be deployed in the Near-RT RIC 175-b, the Non-RT RIC 175-a may receive parameters or external enrichment information from external servers. Such information may be utilized by the Near-RT RIC 175-b and may be received at the SMO 180-a or the Non-RT RIC 175-a from non-network data sources or from network functions. In some examples, the Non-RT RIC 175-a or the Near-RT RIC 175-b may be configured to tune RAN behavior or performance. For example, the Non-RT RIC 175-a may monitor long-term trends and patterns for performance and employ AI or ML models to perform corrective actions through the SMO 180-a (e.g., reconfiguration via O1) or via generation of RAN management policies (e.g., A1 policies) .
[0129] FIG. 3 shows an example of a wireless communications system 300 that supports LP-WUSs for network energy savings in accordance with one or more aspects of the present disclosure. The wireless communications system 300 may implement, or be implemented by, aspects of the wireless communications system 100 and the network architecture 200, as described herein with reference to FIGs. 1 and 2. For example, the wireless communications system 300 may be implemented by a UE 115-b, a UE 115-c, a UE 115-d, and a network entity 105-a, which may be examples of corresponding devices as described herein. The techniques described in the context of the wireless communications system 300 may enable the network entity 105-a to indicate a bit value of ‘0’ using the energy state 330-b via the LP-WUS 310.
[0130] In some cases, the network entity 105-a and the UEs 115 may utilize the LP-WUS 310 to reduce power consumption and save battery power at the UEs 115. The LP-WUS 310 may replace physical downlink control channel (PDCCH) monitoring in favor of LP-WUS triggered PDCCH monitoring, where LP-WUS monitoring may consume less power at the UE 115-b relative to PDCCH monitoring. In some cases, the LP-WUS 310 may be generated by on-off keying (OOK) modulation, where the corresponding envelop detection-based LP-WUS monitoring at the UEs 115may enable a relatively simple architecture and lower operational power.
[0131] For example, to facilitate communication of the LP-WUS 310 and to achieve power savings at the UE 115-b, the UEs 115 may include a WUR 315 and a main radio 320 (e.g., a wireless transceiver) that are coupled with an antenna 325. Accordingly, in cases that the WUR 315 is enabled to monitor for the LP-WUS 310 (e.g., during a sleep state) , the UEs 115 may place the main radio 320 into a sleep state for power savings. As such, in response to detection and reception of the LP-WUS 310 to trigger PDCCH monitoring at the UEs 115, the UEs 115 may transition (e.g., switch) to an active state and wake-up the main radio 320 to monitor for the PDCCH. In some cases, the transition to the active state may be in response to an internal WUS 331 communicated from the WUR 315 to the main radio 320. For example, to switch from operating from the sleep state to the active state, the UE 115-b may deactivate the WUR 315 and activate the main radio 320, where, in response, a voltage level of the UE 115-b may be increased due to the activation of the main radio 320. To switch from operating from the active state to the sleep state, the UE 115-b may deactivate the main radio 320 and activate the WUR 315, where, in response, the voltage level of the UE 115-b may be decreased due to the deactivation of the main radio. As such, for the UEs 115 operating in a connected mode (e.g., RRC connected mode) , the UEs 115 may achieve power saving gains from replacing the constant PDCCH monitoring with LP-WUS triggered PDCCH monitoring (e.g., monitoring the LP-WUS using the WUR 315) .
[0132] In some cases, the LP-WUS 310 may represent either a bitmap 311 or a codepoint value 312, where, the UEs 115 may have the capability to select (e.g., via capability signaling) the bitmap 311 or the codepoint value 312 for use in the LP-WUS 310. In some examples, the bitmap may provide wake-up information for the UEs 115, where, to increase the detection reliability, encoding, cyclic redundancy check operations, or both may be added to the information bits of the bitmap. For example, the bitmap 311 may include one or more bits, where each bit of bitmap 311 corresponds to a respective UE 115 that is in communication with the network entity 105-a. For example, the bitmap 311 may include three bits one for each of the UE 115-b, the UE 115-c, and the UE 115-d. A value of each bit of the bitmap 311 may indicate whether the corresponding UE 115 is to transition from the sleep state to the active state. The codepoint value 312 may also correspond to one or more UEs 115. For example, the codepoint value 312 may be utilized by the network entity 105-a to indicate to the associated UEs 115 to transition from the sleep state to the active state.
[0133] For example, if the LP-WUS 310 represents a bitmap 311, each bit of the bitmap 311 may correspond to one or more UEs 115. The network entity 105-a may generate the LP-WUS using the bit values of the bitmap 311 according to one or more cases. According to a first case, the network entity 105-b may refrain from applying CRC bits to the bitmap 311 and may proceed to perform per bit coding (e.g., using encoding 313, where one bit is mapped to one of two codewords 314) , where a threshold quantity of codewords 314 (e.g., sequences) targeting per bit position in the bitmap 311 for a UE 115 is one, and where the LP-WUS 310 may be associated with a single monitoring occasion (MO) 341. According to a second case, the network entity 105-b may refrain from applying CRC bits to the bitmap 311 and may perform bitmap 311 level coding (e.g., using encoding 313, where one bitmap 311 of L bits is mapped to one of 2L codeword or sequences) , where a threshold quantity of codewords or sequences targeting for a UE is 2L-1, where L is the number of UEs 115 associated with the bitmap 311. That is, the network entity 105-b may refrain from using CRC bits to generate the LP-WUS 310, and instead, may perform the encoding 313 on the bitmap 311 to generate the codeword 314, which may then be transmitted using the waveforms 335. According to a third case, the network entity 105-b may apply CRC bits to the bitmap 311 during generation of the LP-WUS 310.
[0134] If the LP-WUS represents a codepoint value 312, the codepoint value 312 may correspond to (e.g., be mapped to or assigned to) one or more UEs 115. As such, the network entity 105-a may generate the LP-WUS 310 using the codepoint value 312 according to one or more cases. For example, according to a first case, the network entity 105-a may utilize a one-to-one mapping from codepoint value 312 to UE 115, where a threshold quantity of codepoints targeting per MO 341 for a UE 115 may be one. According to a second case, the network entity 105-a may utilize a one-to-one or a one-to-all mapping from codepoint value 312 to UEs 115, where a threshold quantity of codepoints targeting per MO for a UE may be two. According to a third case, the network entity 105-a may utilize a one-to-X mapping from codepoints to UEs 115, where 1 ≤ X ≤ L, and where a threshold quantity of codepoints targeting per MO 341 for a UE 115 may be according to: That is, the threshold quantity of codepoints may be equal to two raised to the quantity (X) of UEs 115 mapped to a single codepoint value 312 minus 1 (e.g., 2X-1) . As described herein, L may be the quantity of UEs associated with monitoring the same LP-WUS 310 and X may be the quantity of UEs mapped to a single codepoint value 312.
[0135] In some cases, to communicate the LP-WUS 310, the network entity 105-b may apply Manchester coding, where each binary bit of the LP-WUS 310 may be transformed into one of two waveforms: high energy state to low energy state or low energy state to high energy state. Accordingly, to detect the Manchester coded bit, the UE 115-b may compare the energy of a left half of the waveform to the right half of the waveform during a time duration. In such examples, the network entity 105-a may transmit a waveform with a high energy to low energy transmission in order to facilitate timing synchronization at the receiver without additional transmission of synchronization signals.
[0136] For example, as part of Manchester coding, to indicate a bit value of ‘1’ , the network entity 105-a may utilize the waveform type 350-a, where the waveform type 350-a may correspond to a transition 340-a from an energy state 330-a (e.g., presence of energy, high energy state, among other examples) to an energy state 330-b (e.g., absence of energy, low energy state, among other examples) during the duration 345-a. Similarly, as part of Manchester coding, to indicate a bit value of ‘0’ , the network entity 105-a may utilize the waveform type 350-c (e.g., a third waveform type) , where the waveform type 350-c may correspond to a transition 340-b between the energy state 330-a and the energy state 330-b during the duration 345-e. It should be understood, however, that the network entity 105-a may utilize the waveform type 350-a to indicate a bit value of ‘0’ and utilize the waveform type 350-c to indicate a bit value of ‘1’ .
[0137] In such cases, however, if the LP-WUS 310 represents a bitmap 311 and a single UE 115 (such as, the UE 115-b) of a set of UEs 115 is indicated to wake-up via the LP-WUS 310, the network entity 105-a may still transmit the LP-WUS 310 with full energy, which may lead to low network energy efficiency. For example, if the network entity 105-a applies Manchester coding for each bit of the bitmap 311 (e.g., payload of the LP-WUS 310) , then the network entity 105-a may experience an increase in power consumption and reduced energy efficiency. For example, if the bitmap 311 includes 10 bits, and 2 bits of the 10 bits correspond to a bit value of ‘1’ , the network entity 105-b may still apply the waveform type 350-c in the LP-WUS 310 for the remaining 8 bits, which may be inefficient and increase power consumption at the network entity 105-a. For example, by applying the waveform type 350-c to each bit of the bitmap 311 having the bit value of ‘0’ , the network entity 105-a may transmit energy as part of each waveform 345, where such transmissions of the transitions 340-b may increase power consumption and decrease overall efficiency as a result. Thus, techniques may be desired to increase efficiency and reduce energy consumption at the network entity for transmission of the LP-WUS 310.
[0138] The techniques, methods, and devices described herein provide for the network entity 105-a to convey a bit value of ‘0’ as the waveform type 350-b (e.g., energy state 330-b) , which may provide for flexibility and higher network energy efficiency for transmission of the LP-WUS 310. For example, to improve energy efficiency at the network entity 105-a, the network entity 105-a may utilize the waveform type 350-b, the waveform type 350-c, or both to indicate a bit value of ‘0’ via the LP-WUS 310.
[0139] As described herein, the network entity 105-a may communicate with one or more UEs 115, including the UE 115-b, the UE 115-c, and the UE 115-d. As such, the network entity 105-a may obtain (e.g., generate) a bitmap 311 associated with the LP-WUS 310, where each bit of the bitmap 311 is associated with a respective UE 115, and where each bit of the bitmap 311 indicates whether the corresponding UE 115 is to transition from the sleep state to the active state (e.g., wake-up the main radio 320) . For example, a bit value of ‘0’ may indicate for the associated UE 115 to remain in the sleep state (e.g., continue to perform LP-WUS 310 monitoring via the WUR 315) , while a bit value of ‘1’ may indicate for the associated UE 115 to transition to the active state (e.g., wake-up the main radio 320) . To generate the bitmap 311, the network entity 105-b may identify which UEs 115 of the one or more UEs 115 is to transition from the sleep state to the active state. As such, if a UE 115 is identified as a candidate for the transition, the network entity 105-b may set the corresponding bit in the bitmap 311 to a ‘1’ , otherwise the corresponding bit of the bitmap 311 may be set to ‘0’ .
[0140] In some examples, in response to generating the bits of the bitmap 311, the network entity 105-a may map the bits of the bitmap 311 (e.g., second set of bits (e.g., codeword 314) ) to one of the waveform type 350-a, the waveform type 350-b, or the waveform type 350-c prior to performing forward error correction (FEC) coding (e.g., encoding 313) and according to the bit values of the respective bits of the bitmap 311.
[0141] In a first case, the network entity 105-a may map each bit of the bitmap 311 having the bit value of ‘0’ to the waveform type 350-b (e.g., the energy state 330-b) . That is, if UEs 115 associated with a bit in the bitmap 311 are indicated to refrain from waking-up the main radio 320 (e.g., have a bit value of ‘0’ ) , the network entity 105-amay refrain from transmitting any energy for this bit. In this way, the network entity 105-a may reduce power consumption and increase energy efficiency during the transmission of the LP-WUS 310. Such techniques may be further described herein with reference to the signaling diagram 400-a.
[0142] In a second case, the network entity 105-a may map each bit of the bitmap 311 having a bit value of ‘0’ to the waveform type 350-b or the waveform type 350-c according to a determination by the network entity 105-a. That is, it may be up to the network entity 105-a to determine whether energy is transmitted for a bit in cases that the UE 115 associated with the bit is indicated to refrain from waking up the main radio 320. In such examples, the network entity 105-a may determine whether to apply the waveform type 350-b or the waveform type 350-c for the associated bit based on a quality of a downlink channel between the associated UE 115 and the network entity 105-a.
[0143] For example, the network entity 105-a may transmit one or more reference signals (e.g., channel state information (CSI) reference signals (CSI-RSs) or other reference signals) to the UE 115-b while the UE 115-b is operating in the active state. The UE 115-b may measure the reference signals and transmit a measurement report back to the network entity 105-a. As such, the network entity 105-a may determine whether to use the waveform type 350-b or the waveform type 350-c for the bit of the bitmap 311 associated with the UE 115-b based on the measurement report. As an illustrative example, if the measurement report indicates relatively poor channel quality between the UE 115-b and the network entity 105-a, the network entity 105-a may determine to map the bit of the bitmap 311 associated with the UE 115-b to the waveform type 350-c, such that the UE 115-b may have an increased likelihood of reception. For example, if the UE 115-b is associated with a poor communication channel, the UE 115-b may benefit from the presence of the waveform type 350-c due to the UE 115-b being able to detect the presence of energy associated with the waveform type 350-c. In another example, if the measurement report indicates relatively good channel quality, the network entity 105-a may determine to map the bit of the bitmap 311 associated with the UE 115-b to the waveform type 350-b.
[0144] In this way, the network entity 105-a may achieve power savings due to refraining from transmitting energy for one or more bits of the LP-WUS, while also indicating the waveform type 350-c for one or more UEs 115 associated with relatively poor downlink channels, thereby maintaining or improving the likelihood such UEs 115 receive the LP-WUS 310 (e.g., due to the presence of energy in the LP-WUS 310 for bits associated with UEs 115 having relatively poor downlink channels) . Techniques to map the bits of the bitmap 311 having a bit value of ‘0’ to one of the waveform type 350-b or the waveform type 350-c may be further described herein with reference to the signaling diagram 400-b of FIG. 4.
[0145] In a third case, the network entity 105-a may map each bit of the bitmap 311 having a bit value of ‘0’ to one of the waveform type 350-b or the waveform type 350-c according to a pattern, which may enable the associated UEs 115 to perform one or more synchronization operations. For example, if UEs 115 associated with a bit (e.g., bit 0) that indicates to refrain from waking up the main radio 320, the network entity 105-amay determine whether to transmit energy for the associated bits according to a pattern, which may enable the associated UE 115 to adjust the timing or automatic gain control (AGC) , thereby reducing the likelihood of mismatched communications between the UE 115 and the network entity 105-a dur to out of sync errors.
[0146] For example, the network entity 105-a may determine to map the bit of the bitmap 311 associated with the UE 115-b to the waveform type 350-c, such that the UE 115-b may perform timing synchronization procedures or adjust the AGC using the waveform type 350-c of the associated bit. Techniques to map the bits of the bitmap 311 having a bit value of ‘0’ according to a pattern may be further described herein with reference to the signaling diagram 400-c of FIG. 4.
[0147] In response to mapping each bit of the bitmap 311 to one of the waveform type 350-a, the waveform type 350-b, and the waveform type 350-c, the network entity 105-a may perform the FEC encoding procedure (e.g., the encoding 313, apply an FEC code to the bitmap 311) to obtain a set of bits (e.g., codeword 314) . In response to obtaining the set of bits (e.g., codeword 314) , the network entity 105-a may apply the Manchester code to the set of bits (e.g., codeword 314 that is output from the FEC code) and output the LP-WUS 310 to the UEs 115.
[0148] As an illustrative example of the first case, the network entity 105-a may obtain a bitmap 311 of ‘100’ , where each bit of the bitmap 311 may correspond to a respective UE 115. If the network entity 105-a uses the first case, the network entity 105-a may map each bit of the bitmap 311 to one of the waveform types 350, such that the bitmap 311 is represented as ‘1XX’ (not shown) , where ‘1’ represents the waveform type 350-a and ‘X’ represents the waveform type 350-b. In response to mapping each bit to the respective waveform types 350, the network entity 105-a may perform the FEC encoding (e.g., a repetition code) procedure to obtain a set of bits (e.g., codeword 314) represented as ’ 11 XX XX’ (not shown) , where ‘1’ represents the waveform type 350-a and ‘X’ represents the waveform type 350-b. In such examples, the bits 316-a (e.g., the first subset of bits) of the set of bits (e.g., codeword 314) may be represented by ‘11’ and correspond to the UE 115-b, the bits 316-b (e.g., the second subset of bits) of the set of bits may be represented as ‘XX’ and correspond to the UE 115-c, and the bits 316-c (e.g., the third subset of bits) of the set of bits may be represented as ‘XX’ (not shown) and may correspond to the UE 115-d. As such, the network entity 105-a may apply the waveform types (e.g., waveform application 317) to the LP-WUS 310 to generate the LP-WUS 310, where the LP-WUS 310 may be represented as ‘1010 XXXX XXXX’ (not shown) , where ‘10’ may represent a transition 340-a.
[0149] In such examples, the network entity 105-a may transmit, via the LP-WUS 310, the bits 316-a (e.g., ‘11’ ) of the bitmap 311 via the waveforms 335-a and 335-b during the durations 345-a and 345-b, the bits 316-b (e.g., ‘XX’ ) via the waveforms 335-c and 335-d during the durations 345-c and 345-d, and transmit the bits 316-c (e.g., ‘XX’ ) via the waveforms 335-e and the 335-f (e.g., with the waveform types 350-b for both the waveforms 335-e and 335-f, which are not illustrated in FIG. 3) during the durations 345-e and 345-f. In this way, the network entity 105-a may generate the LP-WUS 310 and indicate the LP-WUS 310 to the UEs 115.
[0150] As an illustrative example of the third case, the network entity 105-a may obtain a bitmap 311 of ‘100’ . Accordingly, the network entity 105 may map each bit of the bitmap 311 to one of the waveform types 350 according to a pattern, such that the bitmap 311 is represented as ‘1X0’ , where ‘1’ represents the waveform type 350-a, ‘X’ represents the waveform type 350-b, and ‘0’ represents the waveform type 350-c. In such examples, the bits 316-a (e.g., the first subset of bits) of the set of bits (e.g., codeword 314) may be represented by ‘11’ and correspond to the UE 115-b, the bits 316-b (e.g., the second subset of bits) of the set of bits may be represented as ‘XX’ and correspond to the UE 115-c, and the bits 316-c (e.g., the third subset of bits) of the set of bits may be represented as ‘00’ and may correspond to the UE 115-d. As such, the network entity 105-a may apply the waveform types (e.g., waveform application 317) to generate the LP-WUS 310, where the LP-WUS 310 may be represented as ‘1010 XXXX 0101’ , where ‘10’ may represent a transition 340-a and ‘01’ may represent a transition 340-b.
[0151] In such examples, the network entity 105-a may transmit, via the LP-WUS 310, the bits 316-a (e.g., ‘11’ ) of the bitmap 311 via the waveforms 335-a and 335-b during the durations 345-a and 345-b, the bits 316-b (e.g., ‘XX’ ) via the waveforms 335-c and 335-d during the durations 345-c and 345-d, and transmit the bits 316-c (e.g., ‘00’ ) via the waveforms 335-e and the 335-f during the durations 345-e and 345-f. In this way, the network entity 105-a may generate the LP-WUS 310 and indicate the LP-WUS 310 to the UEs 115.
[0152] In some other examples, the network entity 105-a may perform the FEC encoding procedure on the bitmap 311 to obtain a set of bits (e.g., codeword 314) and subsequently map the set of bits (e.g., codeword 314) to one of the waveform type 350-a, the waveform type 350-b, or the waveform type 350-c. For example, in response to obtaining the bitmap 311, the network entity 105-a may perform the FEC encoding procedure to obtain a set of bits (e.g., codeword 314 or encoded bits) . In response to obtaining the set of bits (e.g., codeword 314) , the network entity 105-a may map each bit of the set of bits (e.g., codeword 314) to one of the waveform types 350.
[0153] In a first case, the network entity 105-a may map each bit of the set of bits (e.g., codeword 314) having the bit value of ‘0’ to the waveform type 350-b (e.g., the energy state 330-b) . That is, for a bit having a bit value of ‘0’ in the set of bits (e.g., codeword 314) , the network entity 105-a may refrain from transmitting energy. Such techniques may be further described herein with reference to the signaling diagram 400-a.
[0154] In a second case, the network entity 105-a may map each bit of the set of bits (e.g., codeword 314) having a bit value of ‘0’ to one of the waveform type 350-b or the waveform type 350-c according to a determination by the network entity 105-a. That is, it may be up to the network entity 105-a to determine whether energy is transmitted for a bit the set of bits (e.g., codeword 314) . In such examples, the network entity 105-a may determine whether to apply the waveform type 350-b or the waveform type 350-c for the associated bit based on a quality of a downlink channel between the associated UE 115 and the network entity 105-a.
[0155] For example, the network entity 105-a may transmit one or more reference signals to the UE 115-b while the UE 115-b is operating in the active state. The UE 115-b may measure the reference signals and transmit a measurement report back to the network entity 105-a. As such, the network entity 105-a may determine whether to use the waveform type 350-b or the waveform type 350-c for the bit of the bitmap 311 associated with the UE 115-b based on the measurement report. As an illustrative example, if the measurement report indicates relatively poor channel quality between the UE 115-b and the network entity 105-a, the network entity 105-a may determine to map the bit of the set of bits (e.g., codeword 314) associated with the UE 115-b to the waveform type 350-c, such that the UE 115-b may have an increased likelihood of reception. In another example, if the measurement report indicates relatively good channel quality, the network entity 105-a may determine to map the bit of the set of bits (e.g., codeword 314) associated with the UE 115-b to the waveform type 350-b. Techniques to map the bits of the set of bits (e.g., codeword 314) having a bit value of ‘0’ to one of the waveform type 350-b or the waveform type 350-c may be further described herein with reference to the signaling diagram 400-b of FIG. 4.
[0156] In a third case, the network entity 105-a may map each bit of the set of bits (e.g., codeword 314) having a bit value of ‘0’ to one of the waveform type 350-b or the waveform type 350-c according to pattern, which may enable the associated UEs 115 to perform one or more synchronization operations. For example, if a UE 115 associated with a bit (e.g., bit 0) is indicated to refrain from waking up the main radio 320, the network entity 105-a may determine whether to transmit energy for the associated bits according to a pattern., which may enable the associated UE 115 to adjust the timing or AGC.
[0157] For example, the network entity 105-a may determine to map the bit of the set of bits (e.g., codeword 314) associated with the UE 115-b to the waveform type 350-c, such that the UE 115-b may perform timing synchronization procedures or adjust the AGC using the waveform type 350-c of the associated bit. Techniques to map the bits of the set of bits (e.g., codeword 314) having a bit value of ‘0’ according to a pattern may be further described herein with reference to the signaling diagram 400-c of FIG. 4.
[0158] In response to mapping each bit of the set of bits (e.g., codeword 314) to one of the waveform type 350-a, the waveform type 350-b, and the waveform type 350-c, the network entity 105-a may apply the Manchester code (e.g., waveform application 317) to the set of bits (e.g., codeword 314) and output the LP-WUS 310 to the UE 115-b.
[0159] As an illustrative example of the first case, the network entity 105-a may obtain a bitmap 311 of ‘100’ , where each bit of the bitmap 311 may correspond to a respective UE 115. The network entity 105-a may perform the FEC encoding procedure (e.g., encoding 313) to obtain a set of bits (e.g., codeword 314) of ’ 11 00 00’ (not shown) . Accordingly, the network entity 105-a may map each bit of the set of bits (e.g., codeword 314) to one of the waveform types 350, such that the set of bits (e.g., codeword 314) is represented as ’ 11 XX XX’ (not shown) , where ‘1’ represents the waveform type 350-a and ‘X’ represents the waveform type 350-b. In such examples, the bits 316-a of the set of bits (e.g., codeword 314) may be represented as ‘11’ and correspond to the UE 115-b, the bits 316-b may be represented as ‘XX’ and correspond to the UE 115-c, and the bits 316-c may be represented as ‘XX’ and may correspond to the UE 115-d. As such, the network entity 105-a may generate the LP-WUS 310 according to waveform types 350 of the set of bits (e.g., codeword 314) , such that the LP-WUS 310 is represented as ’ 1010 XXXX XXXX’ (not shown) , where ‘10’ may represent the transition 340-a.
[0160] In such examples, the network entity 105-a may transmit, via the LP-WUS 310, the bits 316-a (e.g., ‘11’ ) of the bitmap 311 via the waveforms 335-a and 335-b during the durations 345-a and 345-b, the bits 316-b (e.g., ‘XX’ ) via the waveforms 335-c and 335-d during the durations 345-c and 345-d, and transmit the bits 316-c (e.g., ‘XX’ bits) via the waveforms 335-e and the 335-f (e.g., with the waveform types 350-b for both the waveforms 335-e and 335-f, which are not illustrated in FIG. 3) during the durations 345-e and 345-f. In this way, the network entity 105-a may generate the LP-WUS 310 and indicate the LP-WUS 310 to one or more UEs 115.
[0161] As an illustrative example of the third case, the network entity 105-a may obtain a bitmap 311 of ‘100’ . The network entity 105-a may perform the FEC encoding procedure obtain a set of bits (e.g., codeword 314) of ’ 11 00 00’ . Accordingly, the network entity 105 may map each bit of the set of bits (e.g., codeword 314) to one of the waveform types 350 according to a pattern, such that the set of bits (e.g., codeword 314) is represented as ’ 11 X0 X0’ (not shown) , where ‘1’ represents the waveform type 350-a, ‘X’ represents the waveform type 350-b, and ‘0’ represents the waveform type 350-c. In such examples, the bits 316-a of the set of bits (e.g., codeword 314) may be represented as ‘11’ and correspond to the UE 115-b, the bits 316-b may be represented as ‘X0’ (not shown) and may correspond to the UE 115-c, and the bits 316-c may be represented as ‘X0’ (not shown) and may correspond to the UE 115-d. As such, the network entity 105-a may generate the LP-WUS 310 according to waveform types 350 of the set of bits (e.g., codeword 314) , which may be represented as ‘1010 XX01 XX01’ (not shown) . In such examples, ‘10’ may represent the transition 340-a and 01 may represent the transition 340-b.
[0162] In such examples, the network entity 105-a may transmit, via the LP-WUS 310, the bits 316-a (e.g., ‘11’ ) via the waveforms 335-a and 335-b during the durations 345-a and 345-b, the bits 316-b (e.g., ‘X0’ ) via the waveforms 335-c and 335-d during the durations 345-c and 345-d (e.g., where the waveform 335-d corresponds to the waveform type 350-c) , and transmit the bits 316-c (e.g., ‘X0’ ) via the waveforms 335-e and the 335-f during the durations 345-e and 345-f (e.g., where the waveform 335-e corresponds to the waveform type 350-c) . In this way, the network entity 105-a may generate the LP-WUS 310 and indicate the LP-WUS 310 to one or more UEs 115.
[0163] In some examples, while the UE 115-b operates in the active state, the UE 115-b may transmit capability signaling 355 to indicate whether the UE 115-b supports receiving the waveform types 350-b in the LP-WUS 310. For example, the UE 115-b may indicate, via the capability signaling 355, whether the UE 115-b supports indicating the bit values of ‘0’ via the second waveform type, whether the UE 115-b supports indications of the bit values of ‘0’ via either the second waveform type or the third waveform type according to a determination by the network entity 105-a, or whether the UE 115-b supports indication of the bit values of ‘0’ via either the second waveform type or the third waveform type according to a pattern. In such examples, the network entity 105-a may determine to use one of the first, second, or third cases for transmission of the LP-WUS 310 according to the capability signaling. The UEs 115-c and 115-d may similar transmit capability signaling 355.
[0164] If the network entity 105-a applies a set of CRC bits (not shown) in addition to the set of bits (e.g., codeword 314) of the LP-WUS 310, the network entity 105-amay map each bit of the set of CRC bits to one of the waveform type 350-a, the waveform type 350-b, and the waveform type 350-c. For example, if the network entity 105-a applies the set of CRC bits before encoding, the network entity 105-a may map each CRC bit of the set of CRC bits to a respective waveform type 350 prior to FEC encoding. In some other examples, if the network entity 105-a applies the set of CRC bits before encoding, the network entity 105-a may map all bits, including each CRC bit of the set of CRC bits and the encoded bits, to one or more waveforms types 350 after FEC encoding. In some other examples, if the network entity 105-a applies the set of CRC bits after FEC encoding, the network entity 105-a may map each bit of the CRC bits and the encoded set of bits (e.g., codeword 314) to the one or more waveform types 350. By applying the CRC bits to the LP-WUS 310, the network entity 105-a may provide a more robust transmission scheme for the LP-WUS 310, thereby improving the likelihood that the LP-WUS 310 is successfully received and decoded by the one or more UEs 115.
[0165] In some examples, to facilitate the communication of the LP-WUS 310, the UE 115-b may receive, while operating in the active state (e.g., via the main radio 320) , control signaling 305 (e.g., RRC signaling) that indicates a configuration 306 (e.g., RRC configuration) for the LP-WUS 310. In such examples, the configuration 306 may indicate that a first bit value (e.g., ‘1’ ) corresponds to a first waveform type (e.g., transition from the energy state 330-a to the energy state 330-b) and indicates that a second bit value (e.g., ‘0’ ) corresponds to one of a second waveform type (e.g., the second energy state, the absence of energy) or a third waveform type (e.g., transition from the second energy state to the first energy state) .
[0166] That is, the network entity 105-a may indicate, via the control signaling 305, that bits of a bit value of ‘0’ are to be conveyed as the waveform type 350-b. In some other examples, the network entity 105-b may indicate, via the control signaling 305, that bits of the set of bits (e.g., codeword 314) having a bit value of ‘0’ are to be conveyed as one of the waveform type 350-b or the waveform type 350-c according to a determination by the network entity 105-a. In some examples, the network entity 105-amay indicate, via the control signaling 305, that bits of the set of bits (e.g., codeword 314) having a bit value of ‘0’ are to be conveyed as one of the waveform type 350-b or the waveform type 350-c according to pattern.
[0167] Further, in some examples, the control signaling 305 may indicate that the LP-WUS 310 is to include a set of CRC bits and may further indicate whether CRC bits of the set of CRC bits having a bit value of ‘0’ are to be conveyed as one of the waveform type 350-b or the waveform type 350-c. In some examples, the control signaling 305 may also indicate whether a mapping between the waveform type 350-b or the waveform type 350-c and the bits of the set of bits (e.g., codeword 314) having a bit value of ‘0’ is to occur prior to FEC coding or subsequent to FEC coding.
[0168] By implementing the techniques described herein, the network entity 105-amay experience improved efficiency in transmitting the LP-WUS 310 (e.g., due to refraining from generating and transmitting a signal that includes multiple transitions 340-b) , experience a reduction in power consumption (e.g., due to refraining from forming the LP-WUS 310 that has multiple transitions 340-b) , or both. Further, by providing the configuration 306 to the UE 115-b, the UE 115-b and the network entity 105-a may experience improved coordination in regards to the formation of the LP-WUS 310, which may enable the UE 115-b to receive the LP-WUS 310 with more accuracy.
[0169] FIG. 4 shows examples of signaling diagrams 400 that support LP-WUSs for network energy savings in accordance with one or more aspects of the present disclosure. The signaling diagrams 400 may be implemented by aspects of the wireless communications system 100, the network architecture 200, and the wireless communications system 300, as described herein with reference to FIGs. 1 through 3. For example, the techniques described in the context of the signaling diagrams 400 may be implemented by a network entity 105, which may be an example of the network entities 105 as described herein. The techniques described in the context of the signaling diagrams 400 may illustrate a mapping between a bitmap 410 and one or more waveform types 420 for communication of a LP-WUS.
[0170] As described herein, the LP-WUS may include one of three waveform types, including the waveform type 420-a, the waveform type 420-b, and the waveform type 420-c. As illustrated, the waveform type 420-a may be associated with a transition from the energy state 405-a to the energy state 405-b, the waveform type 420-b may be associated with the energy state 405-b (e.g., an absence of energy) , and the waveform type 420-b may be associated with a transition from the energy state 405-b to the energy state 405-a. In some examples, to indicate a bit value of ‘1’ , the network entity 105 may transmit the waveform type 420-a, and to indicate a bit value of ‘0’ , the network entity 105 may transmit the waveform type 420-c. However, it should be understood that the waveform type 420-c may be used to convey the bit value of ‘1’ , while the waveform type 420-a may be used convey the bit value of ‘0’ .
[0171] As illustrated, the bitmap 410 for the signaling diagrams 400 may include N bits (e.g., 6 bits) , where a first bit (e.g., b1) of the bitmap 410 has a bit value of ‘1’ , while the remaining bits of the bitmap 410 have bit values of ‘0’ .
[0172] With respect to the signaling diagram 400-a, the network entity 105-a may determine to refrain from transmitting energy for bits of the bitmap 410 having the bit value of ‘0’ . Accordingly, the network entity 105 may map the first bit of the bitmap 410 to the waveform type 420-a and map the remaining bits of the bitmap 410 to the waveform type 420-b. Accordingly, the network entity 105-a may transmit the first bit of the bitmap 410 via the waveform 415-a having the waveform type 420-a, while also transmitting the remaining bits of the bitmap 410 via the waveforms 415-b, 415-c, 415-d, 415-e, and 415-f having the waveform type 420-b, respectively. By doing so, the network entity 105 may refrain from transmitting energy as part of the waveforms 415-b, 415-c, 415-d, 415-e, and 415-f, which may reduce power consumption at the network entity 105 (for example, due to not transmitting any energy during such time periods) .
[0173] With respect to the signaling diagram 400-b, the network entity 105 may determine to convey one or more bits of the bitmap 410 having a bit value of ‘0’ via the waveform type 420-c or the waveform type 420-b according to one or more factors. For example, the network entity 105 may determine that the UEs 115 associated with the second bit (e.g., b2) and the Nth bit (e.g., bn) of the bitmap 410 have relatively poor downlink channel quality (e.g., based on one or more measurement reports, as described herein with reference to FIG. 3) . Accordingly, the network entity 105 may map the second bit and the Nth bit of the bitmap 410 to the waveform type 420-c, such that the UEs 115 associated with such bits may have an increased likelihood of receiving the LP-WUS. That is, due to the presence of energy in the waveforms 415 associated with the UEs 115 having relatively poor downlink channels, the UEs 115 may have an increased likelihood of receiving the associated waveforms 415. The network entity 105 may map the first bit of the bitmap 410 to the waveform type 420-a and map the remaining bits of the bitmap 410 to the waveform type 420-b. In this way, the network entity 105 may transmit each respective bit of the bitmap 410 via the waveforms 415-g, 415-h, 415-i, 415-j, 415-k, and 415-l, respectively, according to the mapping.
[0174] With respect to the signaling diagram 400-c, the network entity 105 may determine to convey one or more bits of the bitmap 410 having a bit value of ‘0’ via the waveform type 420-c or the waveform type 420-b according to a pattern 425. For example, the network entity 105 may determine to map a first subset of bits (e.g., bits 2, 4, and N) of the bitmap 410 to the waveform type 420-c and map a second subset of bits (e.g., 3 and N-1) to the waveform type 420-b in accordance with the pattern 425. Additionally, because the first bit of the bitmap 410 has the bit value of ‘1’ , the network entity 105-a may map the first bit to the waveform type 420-a. In this way, the network entity 105 may transmit each respective bit of the bitmap 410 via the waveforms 415-m, 415-n, 415-o, 415-p, 415-q, and 415-r, respectively, according to the mapping.
[0175] FIG. 5 shows an example of a process flow 500 that supports LP-WUSs for network energy savings in accordance with one or more aspects of the present disclosure. The process flow 500 may implement, or be implemented by, aspects of the wireless communications system 100, the network architecture 200, the wireless communications system 300, and the signaling diagrams 400, as described herein with reference to FIGs. 1 through 4. For example, the process flow 500 may be implemented by a UE 115-e and a network entity 105-b, which may be examples of corresponding devices as described herein. The techniques described in the context of the process flow 500 may enable the network entity 105-b to indicate a bit value of ‘0’ via the second waveform type (e.g., an absence of energy, the second energy state) .
[0176] At 505, the UE 115-e may operate in an active state 506. For example, in the active state 506, the UE 115-e may be configured to utilize the main radio to perform one or more operations, such as receive signals, transmit signals, or both.
[0177] In some examples, at 510, the UE 115-e may transmit capability signaling (e.g., capability signaling 355) , which may indicate whether the UE 115-e supports receiving various waveform types via the LP-WUS. For example, as described herein, a first waveform type may correspond to a transition from a first energy state (e.g., presence of energy) to a second energy state (e.g., absence of energy) and may be used to indicate a bit value of ‘1’ , a second waveform type may correspond to the second energy state, and a third waveform type may correspond to a transition from the second energy state to the first energy state. Further, it should be understood that the first waveform type may correspond to the transition from the second energy state to the first energy state, while the third waveform type may correspond to the transition from the first energy state to the second energy state.
[0178] In some examples, the UE 115-e may indicate, via the capability signaling, whether the UE supports operations according to the signaling diagram 400-a (e.g., bit values of ‘0’ are indicated via the second waveform type) , whether the UE 115-e supports operations according to the signaling diagram 400-b (e.g., bit values of ‘0’ are indicated via either the second waveform type or the third waveform type according to a determination by the network entity 105-b) , or whether the UE 115-e support operations according to the signaling diagram 400-c (e.g., bit values of ‘0’ are indicated via either the second waveform type or the third waveform type according to a pattern) .
[0179] In some examples, at 515, the UE 115-e may receive one or more reference signals 515 from the network entity 105-b. For example, the UE 115-e may receive one or more CSI-RSs from the network entity 105-b and obtain one or more channel measurements of the downlink channel between the UE 115-e and the network entity 105-b using the one or more CSI-RSs. Similarly, the UE 115-e may receive one or more other reference signals from the network entity 105-b and obtain one or more layer 1 (L1) or layer 3 (L3) channel measurements of the downlink channel between the UE 115-e and the network entity 105-b using the one or more other reference signals.
[0180] In some examples, at 520, the UE 115-e may transmit, to the UE 115-b, a measurement report to indicate one or more channel measurements of the downlink channel between the UE 115-e and the network entity 105-b. For example, if the UE 115-b receives the one or more CSI-RSs, then the UE 115-e may transmit a CSI report to the network entity 105-b. If the UE 115-b receives the one or more other reference signals, then the UE 115-e may transmit the L1 or L3 measurement report to the network entity 105-b.
[0181] In such examples, the network entity 105-b may utilized the measurement reports to determine whether to indicate a bit value of ‘0’ (e.g., second bit value) via the second waveform type or the third waveform type to the UE 115-e, as described herein with reference to the signaling diagram 400-b of FIG. 4. For example, if the UE 115-e is associated with relatively poor downlink communication quality, then the network entity 105-b may determine to utilize the third waveform type to indicate the bit value of ‘0’ to the UE 115-e via the LP-WUS, thereby ensuring the UE 115-e may successfully receive the respective waveforms of the LP-WUS. In some other examples, if the UE 115-e is associated with relatively good downlink communication quality, then the network entity 105-b may determine to utilize the second waveform type to indicate the bit value of ‘0’ to the UE 115-e, which may reduce power consumption and increase energy efficiency at the network entity 105-b.
[0182] At 525, the network entity 105-b may transmit control signaling (e.g., the control signaling 305) , where the control signaling may include a configuration (e.g., RRC configuration) for the LP-WUS. For example, the configuration may indicate that a bit value of ‘1’ (e.g., first bit value) corresponds to the first waveform type and that the bit value of ‘0’ is to correspond to the second waveform type or the third waveform type.
[0183] For example, as described herein with reference to FIGs. 3 and 4, the LP-WUS may represent a set of bits, where respective subsets of bits of the set of bits corresponds to a respective UE. As such, the network entity 105-b may indicate, via the control signaling, that bits of a bit value of ‘0’ are to be conveyed as the second waveform type (e.g., as illustrated and described herein with reference to the signaling diagram 400-a) . In some other examples, the network entity 105-b may indicate, via the control signaling, that bits of the set of bits having a bit value of ‘0’ are to be conveyed as one of the second waveform type or the third waveform type according to a determination by the network entity 105-b (e.g., as illustrated and described herein with reference to the signaling diagram 400-b) . In some examples, the network entity 105-b may indicate, via the control signaling, that bits of the set of bits having a bit value of ‘0’ are to be conveyed as one of the second waveform type or the third waveform type according to pattern (e.g., as illustrated and described herein with reference to the signaling diagram 400-c) .
[0184] Further, in some examples, the control signaling may indicate that the LP-WUS is to include a set of CRC bits and may further indicate whether CRC bits of the set of CRC bits having a bit value of ‘0’ are to be conveyed as one of the second waveform type or the third waveform type. In some examples, the control signaling may also indicate whether a mapping between the second waveform type or the third waveform type and the bits of the set of bits having a bit value of ‘0’ is to occur prior to FEC coding or subsequent to FEC coding.
[0185] At 530, the UE 115-e may operate in a sleep state 531. For example, the UE 115-e may power down the main radio of the UE 115-e and perform one or more operations using the WUR of the UE 115-e, such as monitoring for the LP-WUS.
[0186] At 535, the network entity 105-b may generate the LP-WUS for transmission to one or more UEs, including the UE 115-e. The network entity 105-b may generate the LP-WUS according to the techniques described herein with reference to FIG 3.
[0187] In one example, the network entity 105-b may map each bit of a bitmap to one of the first waveform type, the second waveform type, or the third waveform type prior to FEC coding (e.g., in accordance with the configuration) . For example, the network entity 105-b may obtain a bitmap (e.g., second set of bits) , where each bit of the bitmap corresponds to a respective UE of the one or more UEs. In accordance with obtaining the bitmap, the network entity 105-b may map each bit of the bitmap to one of the first waveform type, the second waveform type, or the third waveform type according to a bit value of each bit and according to the configuration. In response to mapping each bit of the bitmap, the network entity 105-b may obtain a set of bits for transmission via the LP-WUS by performing the FEC encoding procedure on the bitmap. In response to performing the FEC encoding procedure, the network entity 105-b may apply one of the first waveform type, the second waveform type, or the third waveform type to each bit of the set of bits according to the mapping.
[0188] In another example, the network entity 105-b may map each bit of a bitmap to one of the first waveform type, the second waveform type, or the third waveform type after FEC coding (e.g., in accordance with the configuration) . For example, the network entity 105-b may obtain a bitmap (e.g., second set of bits) , where each bit of the bitmap corresponds to a respective UE of the one or more UEs. In accordance with obtaining the bitmap, the network entity 105-b may perform the FEC encoding procedure on the bitmap to obtain a set of bits. As such, the network entity 105-b may map each bit of the set of bits to one of the first waveform type, the second waveform type, or the third waveform type according to a bit value of each bit and according to the configuration. In response to mapping each bit of the bitmap, the network entity 105-b may apply one of the first waveform type, the second waveform type, or the third waveform type to each bit of the set of bits according to the mapping.
[0189] At 540, the network entity 105-b may transmit, and the UE 115-e may receive via the WUR, the LP-WUS, where each bit of the set of bits is conveyed as a respective waveform during a respective time duration of the LP-WUS, as described and illustrated herein with reference to FIGs. 3 and 4.
[0190] At 545, if a first subset of bits of the set of bits corresponding to the UE 115-e are associated with the first waveform type, then the UE 115-e may determine that a bit value of the first subset of bits is equal to ‘1’ . Accordingly, the UE 115-e may transition to the active state 506 from the sleep state 531.
[0191] At 550, if the first subset of bits are associated with the second waveform type or the third waveform type, then the UE 115-e may determine that a bit value of the first subset of bits is equal to ‘0’ . Accordingly, the UE 115-e may continue to operate in the sleep state 531.
[0192] In some examples, at 555, if the first subset of bits are associated with the third waveform type, then the UE 115-e may determine that a bit value of the first subset of bits is equal to ‘0’ and also determine to perform one or more synchronization procedures using the respective waveforms of the first subset of bits. For example, the UE 115-e may perform a time synchronization procedure using the respective waveforms of the first subset of bits. In some other examples, the UE 115-e may adjust an AGC using the respective waveforms of the first subset of bits.
[0193] FIG. 6 shows an example of a process flow 600 that supports LP-WUSs for network energy savings in accordance with one or more aspects of the present disclosure. The process flow 600 may implement, or be implemented by, aspects of the wireless communications system 100, the network architecture 200, and the wireless communications system 300, as described herein with reference to FIGs. 1 through 3. For example, the process flow 600 may be implemented by a UE 115-f and a network entity 105-c, which may be examples of corresponding devices as described herein.
[0194] For example, as described herein, a LP-WUS (e.g., the LP-WUS 310) may indicate a codepoint value 621, where the codepoint value 621 may correspond to (e.g., be associated with or mapped to) one or more UEs 115. For example, a first codepoint value 621 may correspond to a first set of UEs 115 including the UE 115-f, while a second codepoint value 621 may correspond to a second set of UEs 115. As such, the techniques described in the context of the process flow 600 may enable the UE 115-f to perform one or more state transition procedures in response to receiving one of the first or second codepoint values 621 within a LP-WUS.
[0195] At 605, the UE 115-f may operate according to an active state 606. In such examples, the UE 115-f may be configured to utilize the main radio to perform one or more operations, such as monitor for signals, transmit signals, or both. At 610, the UE 115-f may receive, while operating in the active state 606, control signaling (e.g., RRC signaling, DCI, MAC-CE, among other examples) that indicates whether the UE 115-f is to operate according to the first state transition procedure 611 or the second state transition procedure 612. That is, according to the probability of waking up the main radio at the UE 115-f (e.g., transition from the sleep state 616 to the active state 606) , the network entity 105-c may configure the UE behavior in response to receiving the associated LP-WUS. For example, the network entity 105-c may configure the UE 115-f to follow one of the first state transition procedure 611 or the second state transition procedure 612 in response to receiving the codepoint value 621 in the LP-WUS.
[0196] As described herein, the first state transition procedure 611 may correspond to the UE 115-f transitioning from a sleep state 616 to the active state 606 based on whether the codepoint value 621 is associated with the UE 115-f. For example, if the UE 115-f receives the associated codepoint value 621 via the LP-WUS, then the UE 115-f is to transition from the sleep state 616 to the active state 606 (e.g., wake-up the main radio) , otherwise, the UE 115-f is to continue to operate in the sleep state 616 (e.g., refrain from waking up the main radio) .
[0197] The second state transition procedure 612 may correspond to the UE 115-f continuing to operate in the sleep state 616 based on whether the codepoint value 621 is associated with the UE 115-f. For example, if the UE 115-f receives the associated codepoint value 621, then the UE 115-f is to continue to operate in the sleep state 616 (e.g., refrain from waking up the main radio) , otherwise, the UE 115-f is to transition from the sleep state 616 to the active state 606 (e.g., wake-up the main radio) .
[0198] At 615, in accordance with receiving the control signaling at 610, the UE 115-f may operate in the sleep state 616. For example, the UE 115-f may transition from operating in the active state 606 to operating in the sleep state 616. As described herein, the sleep state 616 corresponds to the UE 115-f powering down the main radio of the UE 115-f and performing one or more operations using the WUR, such as monitor for a LP-WUS.
[0199] At 620, the network entity 105-c may transmit a LP-WUS that indicates the codepoint value 621. As such, in response to receiving the LP-WUS, the UE 115-f may perform one of the first state transition procedure 611 or the second state transition procedure 612 in accordance with the configuration.
[0200] At 625, if the control signaling, received at 610, indicates for the UE 115-f to perform the first state transition procedure 611, then the UE 115-f may proceed to perform the first state transition procedure 611 according to whether the UE 115-f is associated with the codepoint value 621. As described herein, an association between the UE 115-f and the codepoint value 621 may correspond to a mapping or assignment between the UE 115-f and the codepoint value 621.
[0201] For example, if the UE 115-f is associated with the codepoint value 621 indicated via the LP-WUS at 620, then the UE 115-f may proceed to transition from the sleep state 616 to the active state 606, such that the UE 115-f may utilize the main radio to monitor for and receive one or more control channels (e.g., PDCCHs) from the network entity 105-c. If the UE 115-f is not associated with the codepoint value 621 indicated via the LP-WUS at 620, then the UE 115-f may continue to operate in the sleep state 616 (e.g., continue to utilize the WUR to monitor for LP-WUSs) .
[0202] At 630, if the control signaling, received at 610, indicates for the UE 115-f to perform the second state transition procedure 612, then the UE 115-f may proceed to perform the second state transition procedure 612 according to whether the UE 115-f is associated with the codepoint value 621. As described herein, an association between the UE 115-f and the codepoint value 621 may correspond to a mapping or assignment between the UE 115-f and the codepoint value 621.
[0203] For example, if the UE 115-f is associated with the codepoint value 621 indicated via the LP-WUS at 620, then the UE 115-f may continue to operate in the sleep state 616 (e.g., continue to utilize the WUR to monitor for LP-WUSs) . If the UE 115-f is not associated with the codepoint value 621 indicated via the LP-WUS at 620, then proceed to transition from the sleep state 616 to the active state 606, such that the UE 115-f may utilize the main radio to monitor for and receive one or more control channels (e.g., PDCCHs) from the network entity 105-c.
[0204] As described herein, the network entity 105-c may configure the UE 115-f to follow one of the first state transition procedure 611 or the second state transition procedure 612 in response to receiving associated bits of a bitmap, as described herein with reference to FIGs. 3 through 5. For example, as part of the first state transition procedure 611, if the UE 115-f receives an indication of a bit value of ‘1’ (e.g., via the first waveform type) within the LP-WUS, the UE 115-f may proceed to transition from the sleep state 616 to the active state 606. Otherwise, if the UE 115-f receives an indication of a bit value of ‘0’ (e.g., via the second or third waveform types) , then the UE 115-f may continue to operate in the sleep state 616.
[0205] Similarly, as part of the second state transition procedure 612, if the UE 115-f receives an indication of a bit value of ‘1’ (e.g., via the first waveform type) within the LP-WUS, the UE 115-f may continue to operate in the sleep state 616. Otherwise, if the UE 115-f receives an indication of a bit value of ‘0’ (e.g., via the second or third waveform types) , then the UE 115-f may proceed to transition from the sleep state 616 to the active state 606.
[0206] FIG. 7 shows a block diagram 700 of a device 705 that supports LP-WUSs for network energy savings in accordance with one or more aspects of the present disclosure. 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 transmitter 715, and a communications manager 720. The device 705, or one or more components of the device 705 (e.g., the receiver 710, the transmitter 715, the communications manager 720) , may include at least one processor, which may be coupled with at least one memory, to, individually or collectively, support or enable the described techniques. Each of these components may be in communication with one another (e.g., via one or more buses) .
[0207] The receiver 710 may provide a means for receiving information such as packets, user data, control information, or any combination thereof associated with various information channels (e.g., control channels, data channels, information channels related to LP-WUSs for network energy savings) . Information may be passed on to other components of the device 705. The receiver 710 may utilize a single antenna or a set of multiple antennas.
[0208] The transmitter 715 may provide a means for transmitting signals generated by other components of the device 705. For example, the transmitter 715 may transmit information such as packets, user data, control information, or any combination thereof associated with various information channels (e.g., control channels, data channels, information channels related to LP-WUSs for network energy savings) . In some examples, the transmitter 715 may be co-located with a receiver 710 in a transceiver module. The transmitter 715 may utilize a single antenna or a set of multiple antennas.
[0209] The communications manager 720, the receiver 710, the transmitter 715, or various combinations or components thereof may be examples of means for performing various aspects of managing LP-WUSs for network energy savings as described herein. For example, the communications manager 720, the receiver 710, the transmitter 715, or various combinations or components thereof may be capable of performing one or more of the functions described herein.
[0210] In some examples, the communications manager 720, the receiver 710, the transmitter 715, or various combinations or components thereof may be implemented in hardware (e.g., in communications management circuitry) . The hardware may include at least one of a processor, a digital signal processor (DSP) , a central processing unit (CPU) , an application-specific integrated circuit (ASIC) , a field-programmable gate array (FPGA) or other programmable logic device, a microcontroller, discrete gate or transistor logic, discrete hardware components, or any combination thereof configured as or otherwise supporting, individually or collectively, a means for performing the functions described in the present disclosure. In some examples, at least one processor and at least one memory coupled with the at least one processor may be configured to perform one or more of the functions described herein (e.g., by one or more processors, individually or collectively, executing instructions stored in the at least one memory) .
[0211] Additionally, or alternatively, the communications manager 720, the receiver 710, the transmitter 715, or various combinations or components thereof may be implemented in code (e.g., as communications management software or firmware) executed by at least one processor (e.g., referred to as a processor-executable code) . If implemented in code executed by at least one processor, the functions of the communications manager 720, the receiver 710, the transmitter 715, or various combinations or components thereof may be performed by a general-purpose processor, a DSP, a CPU, an ASIC, an FPGA, a microcontroller, or any combination of these or other programmable logic devices (e.g., configured as or otherwise supporting, individually or collectively, a means for performing the functions described in the present disclosure) .
[0212] In some examples, the communications manager 720 may be configured to perform various operations (e.g., receiving, determining, obtaining, monitoring, outputting, transmitting) using or otherwise in cooperation with the receiver 710, the transmitter 715, or both. For example, the communications manager 720 may receive information from the receiver 710, send information to the transmitter 715, or be integrated in combination with the receiver 710, the transmitter 715, or both to obtain information, output information, or perform various other operations as described herein.
[0213] The communications manager 720 may support wireless communication in accordance with examples as disclosed herein. For example, the communications manager 720 is capable of, configured to, or operable to support a means for receiving control signaling that includes a configuration for a LP-WUS that represents a set of bits, where the configuration indicates that a first bit value corresponds to a first waveform type, where the configuration further indicates that a second bit value corresponds to a second waveform type, a third waveform type, or both, and where the first waveform type includes a transition between a first energy state and a second energy state, the second waveform type includes one of the first energy state or the second energy state, and the third waveform type includes a transition between the second energy state and the first energy state. The communications manager 720 is capable of, configured to, or operable to support a means for receiving, while in a sleep state, the LP-WUS, where each bit of the set of bits is associated with a respective waveform in a respective time duration of the LP-WUS, where each respective waveform includes one of the first waveform type, the second waveform type, or the third waveform type. The communications manager 720 is capable of, configured to, or operable to support a means for continuing to operate in the sleep state in accordance with respective waveforms for a first subset of bits of the set of bits, where the respective waveforms include one of the second waveform type or the third waveform type, and where the first subset of bits of the set of bits corresponds to the UE.
[0214] Additionally, or alternatively, the communications manager 720 may support wireless communication in accordance with examples as disclosed herein. For example, the communications manager 720 is capable of, configured to, or operable to support a means for receiving, while in an active state, control signaling that indicates whether the UE is to operate in accordance with a first state transition procedure or a second state transition procedure in response to reception of a LP-WUS. The communications manager 720 is capable of, configured to, or operable to support a means for receiving, while in a sleep state, the LP-WUS, where the LP-WUS includes a codepoint value. The communications manager 720 is capable of, configured to, or operable to support a means for performing one of the first state transition procedure or the second state transition procedure in accordance with the control signaling and the codepoint value, where the first state transition procedure includes a transition from the sleep state to the active state in accordance with an association between the codepoint value and the UE, and where the second state transition procedure includes a continuation of operations in the sleep state in accordance with the association between the codepoint value and the UE.
[0215] By including or configuring the communications manager 720 in accordance with examples as described herein, the device 705 (e.g., at least one processor controlling or otherwise coupled with the receiver 710, the transmitter 715, the communications manager 720, or a combination thereof) may support techniques for LP-WUS configurations, which may provide for reduced power consumption, more efficient utilization of communication resources, and improved coordination between devices.
[0216] FIG. 8 shows a block diagram 800 of a device 805 that supports LP-WUSs for network energy savings in accordance with one or more aspects of the present disclosure. The device 805 may be an example of aspects of a device 705 or a UE 115 as described herein. The device 805 may include a receiver 810, a transmitter 815, and a communications manager 820. The device 805, or one of more components of the device 805 (e.g., the receiver 810, the transmitter 815, the communications manager 820) , may include at least one processor, which may be coupled with at least one memory, to support the described techniques. Each of these components may be in communication with one another (e.g., via one or more buses) .
[0217] The receiver 810 may provide a means for receiving information such as packets, user data, control information, or any combination thereof associated with various information channels (e.g., control channels, data channels, information channels related to LP-WUSs for network energy savings) . Information may be passed on to other components of the device 805. The receiver 810 may utilize a single antenna or a set of multiple antennas.
[0218] The transmitter 815 may provide a means for transmitting signals generated by other components of the device 805. For example, the transmitter 815 may transmit information such as packets, user data, control information, or any combination thereof associated with various information channels (e.g., control channels, data channels, information channels related to LP-WUSs for network energy savings) . In some examples, the transmitter 815 may be co-located with a receiver 810 in a transceiver module. The transmitter 815 may utilize a single antenna or a set of multiple antennas.
[0219] The device 805, or various components thereof, may be an example of means for performing various aspects of LP-WUSs for network energy savings as described herein. For example, the communications manager 820 may include an LP-WUS Configuration Component 825, a WUR Component 830, a State Transition Component 835, or any combination thereof. The communications manager 820 may be an example of aspects of a communications manager 720 as described herein. In some examples, the communications manager 820, or various components thereof, may be configured to perform various operations (e.g., receiving, obtaining, monitoring, outputting, transmitting) using or otherwise in cooperation with the receiver 810, the transmitter 815, or both. For example, the communications manager 820 may receive information from the receiver 810, send information to the transmitter 815, or be integrated in combination with the receiver 810, the transmitter 815, or both to obtain information, output information, or perform various other operations as described herein.
[0220] The communications manager 820 may support wireless communication in accordance with examples as disclosed herein. The LP-WUS Configuration Component 825 is capable of, configured to, or operable to support a means for receiving control signaling that includes a configuration for a LP-WUS that represents a set of bits, where the configuration indicates that a first bit value corresponds to a first waveform type, where the configuration further indicates that a second bit value corresponds to a second waveform type, a third waveform type, or both, and where the first waveform type includes a transition between a first energy state and a second energy state, the second waveform type includes one of the first energy state or the second energy state, and the third waveform type includes a transition between the second energy state and the first energy state. The WUR Component 830 is capable of, configured to, or operable to support a means for receiving, while in a sleep state, the LP-WUS, where each bit of the set of bits is associated with a respective waveform in a respective time duration of the LP-WUS, where each respective waveform includes one of the first waveform type, the second waveform type, or the third waveform type. The State Transition Component 835 is capable of, configured to, or operable to support a means for continuing to operate in the sleep state in accordance with respective waveforms for a first subset of bits of the set of bits, where the respective waveforms include one of the second waveform type or the third waveform type, and where the first subset of bits of the set of bits corresponds to the UE.
[0221] Additionally, or alternatively, the communications manager 820 may support wireless communication in accordance with examples as disclosed herein. The State Transition Component 835 is capable of, configured to, or operable to support a means for receiving, while in an active state, control signaling that indicates whether the UE is to operate in accordance with a first state transition procedure or a second state transition procedure in response to reception of a LP-WUS. The WUR Component 830 is capable of, configured to, or operable to support a means for receiving, while in a sleep state, the LP-WUS, where the LP-WUS includes a codepoint value. The State Transition Component 835 is capable of, configured to, or operable to support a means for performing one of the first state transition procedure or the second state transition procedure in accordance with the control signaling and the codepoint value, where the first state transition procedure includes a transition from the sleep state to the active state in accordance with an association between the codepoint value and the UE, and where the second state transition procedure includes a continuation of operations in the sleep state in accordance with the association between the codepoint value and the UE.
[0222] FIG. 9 shows a block diagram 900 of a communications manager 920 that supports LP-WUSs for network energy savings in accordance with one or more aspects of the present disclosure. The communications manager 920 may be an example of aspects of a communications manager 720, a communications manager 820, or both, as described herein. The communications manager 920, or various components thereof, may be an example of means for performing various aspects of LP-WUSs for network energy savings as described herein. For example, the communications manager 920 may include an LP-WUS Configuration Component 925, a WUR Component 930, a State Transition Component 935, a Capability Signaling Component 940, a CSI-RS Component 945, a CSI report component 950, a reference signal component 955, a L1 or layer 2 measurement report component 960, a time synchronization component 965, an AGC component 970, or any combination thereof. Each of these components, or components or subcomponents thereof (e.g., one or more processors, one or more memories) , may communicate, directly or indirectly, with one another (e.g., via one or more buses) .
[0223] The communications manager 920 may support wireless communication in accordance with examples as disclosed herein. The LP-WUS Configuration Component 925 is capable of, configured to, or operable to support a means for receiving control signaling that includes a configuration for a LP-WUS that represents a set of bits, where the configuration indicates that a first bit value corresponds to a first waveform type, where the configuration further indicates that a second bit value corresponds to a second waveform type, a third waveform type, or both, and where the first waveform type includes a transition between a first energy state and a second energy state, the second waveform type includes one of the first energy state or the second energy state, and the third waveform type includes a transition between the second energy state and the first energy state. The WUR Component 930 is capable of, configured to, or operable to support a means for receiving, while in a sleep state, the LP-WUS, where each bit of the set of bits is associated with a respective waveform in a respective time duration of the LP-WUS, where each respective waveform includes one of the first waveform type, the second waveform type, or the third waveform type. The State Transition Component 935 is capable of, configured to, or operable to support a means for continuing to operate in the sleep state in accordance with respective waveforms for a first subset of bits of the set of bits, where the respective waveforms include one of the second waveform type or the third waveform type, and where the first subset of bits of the set of bits corresponds to the UE.
[0224] In some examples, the Capability Signaling Component 940 is capable of, configured to, or operable to support a means for transmitting signaling that indicates a capability of the UE to receive the LP-WUS that includes the second waveform type, the third waveform type, or both, where the configuration for the LP-WUS is in accordance with the capability of the UE.
[0225] In some examples, the CSI-RS Component 945 is capable of, configured to, or operable to support a means for receiving, while in an active state, one or more CSI-RS.In some examples, the CSI report component 950 is capable of, configured to, or operable to support a means for transmitting, while in the active state, a CSI report or a measurement report that indicates one or more channel measurements measured via the one or more CSI-RS, where the respective waveforms associated with the first subset of bits include the third waveform type in accordance with the one or more channel measurements.
[0226] In some examples, the reference signal component 955 is capable of, configured to, or operable to support a means for receiving, while in an active state, one or more reference signals. In some examples, the L1 or layer 2 measurement report component 960 is capable of, configured to, or operable to support a means for transmitting, while in the active state, a L1 or L3 report that indicates one or more channel measurements measured via the one or more reference signals, where the respective waveforms associated with the first subset of bits include the third waveform type in accordance with the one or more channel measurements.
[0227] In some examples, the respective waveforms for the first subset of bits include the third waveform type and respective waveforms for a second subset of bits of the set of bits include the second waveform type.
[0228] In some examples, a presence of the second waveform type for the respective waveforms of the first subset of bits and a presence of the third waveform type in the respective waveforms for the second subset of bits is in accordance with a first pattern of a set of multiple patterns.
[0229] In some examples, the time synchronization component 965 is capable of, configured to, or operable to support a means for performing one or more timing synchronization operations via the respective waveforms for the first subset of bits in accordance with the third waveform type of the respective waveforms for the first subset of bits.
[0230] In some examples, the AGC component 970 is capable of, configured to, or operable to support a means for adjusting an AGC at the UE via the respective waveforms for the first subset of bits in accordance with the third waveform type of the respective waveforms for the first subset of bits.
[0231] In some examples, the LP-WUS further represents a set of cyclic redundancy check bits in addition to the set of bits, and respective waveforms for each bit of the set of cyclic redundancy check bits corresponds to one of the first waveform type, the second waveform type, the third waveform type, or any combination thereof.
[0232] In some examples, the control signaling further indicates whether the LP-WUS indicates the set of cyclic redundancy check bits in addition to the set of bits.
[0233] In some examples, the control signaling further indicates whether a mapping between the second waveform type and one or more bits of the set of bits occurs either prior to forward error correction coding or subsequent to the forward error correction coding, the one or more bits of the set of bits include the second bit value, and the LP-WUS is in accordance with the control signaling.
[0234] In some examples, the respective waveforms for each bit of the first subset of bits include the second waveform type.
[0235] In some examples, the first energy state includes a presence of energy, and the second energy state includes an absence of energy.
[0236] In some examples, the first energy state includes an absence of energy, and the second energy state includes a presence of energy.
[0237] In some examples, the UE includes a main radio and a WUR, and the UE is configured to utilize the main radio to perform one or more operations in an active state, and the UE is configured to utilize the WUR to perform one or more operations when the UE is in the sleep state.
[0238] In some examples, the first bit value indicates for the UE to transition from the sleep state to an active state, and the second bit value indicates for the UE to continue to perform one or more operations in the sleep state.
[0239] In some examples, a second subset of bits of the set of bits correspond to a second UE that is different from the UE.
[0240] Additionally, or alternatively, the communications manager 920 may support wireless communication in accordance with examples as disclosed herein. In some examples, the State Transition Component 935 is capable of, configured to, or operable to support a means for receiving, while in an active state, control signaling that indicates whether the UE is to operate in accordance with a first state transition procedure or a second state transition procedure in response to reception of a LP-WUS. In some examples, the WUR Component 930 is capable of, configured to, or operable to support a means for receiving, while in a sleep state, the LP-WUS, where the LP-WUS includes a codepoint value. In some examples, the State Transition Component 935 is capable of, configured to, or operable to support a means for performing one of the first state transition procedure or the second state transition procedure in accordance with the control signaling and the codepoint value, where the first state transition procedure includes a transition from the sleep state to the active state in accordance with an association between the codepoint value and the UE, and where the second state transition procedure includes a continuation of operations in the sleep state in accordance with the association between the codepoint value and the UE.
[0241] In some examples, to support performing the first state transition procedure, the State Transition Component 935 is capable of, configured to, or operable to support a means for transitioning from the sleep state to the active state in accordance with the codepoint value and the first state transition procedure.
[0242] In some examples, to support performing the first state transition procedure, the State Transition Component 935 is capable of, configured to, or operable to support a means for refraining to transition from the sleep state to the active state in accordance with the codepoint value and the first state transition procedure.
[0243] In some examples, to support performing the second state transition procedure, the State Transition Component 935 is capable of, configured to, or operable to support a means for refraining to transition from the sleep state to the active state in accordance with the codepoint value and the second state transition procedure.
[0244] In some examples, to support performing the second state transition procedure, the State Transition Component 935 is capable of, configured to, or operable to support a means for transitioning from the sleep state to the active state in accordance with the codepoint value and the second state transition procedure.
[0245] In some examples, the UE includes a main radio and a WUR, and the UE is configured to utilize the main radio to perform one or more operations in the active state, and the UE is configured to utilize the WUR to perform one or more operations in the sleep state.
[0246] In some examples, to support transitioning from the active state to the sleep state, the State Transition Component 935 is capable of, configured to, or operable to support a means for transitioning from performing the one or more operations via the WUR to performing the one or more operations via the main radio.
[0247] FIG. 10 shows a diagram of a system 1000 including a device 1005 that supports LP-WUSs for network energy savings in accordance with one or more aspects of the present disclosure. The device 1005 may be an example of or include components of a device 705, a device 805, or a UE 115 as described herein. The device 1005 may communicate (e.g., wirelessly) with one or more other devices (e.g., network entities 105, UEs 115, or a combination thereof) . The device 1005 may include components for bi-directional voice and data communications including components for transmitting and receiving communications, such as a communications manager 1020, an input / output (I / O) controller, such as an I / O controller 1010, a transceiver 1015, one or more antennas 1025, at least one memory 1030, code 1035, and at least one processor 1040. These components may be in electronic communication or otherwise coupled (e.g., operatively, communicatively, functionally, electronically, electrically) via one or more buses (e.g., a bus 1045) .
[0248] The I / O controller 1010 may manage input and output signals for the device 1005. The I / O controller 1010 may also manage peripherals not integrated into the device 1005. In some cases, the I / O controller 1010 may represent a physical connection or port to an external peripheral. In some cases, the I / O controller 1010 may utilize an operating system such as or another known operating system. Additionally, or alternatively, the I / O controller 1010 may represent or interact with a modem, a keyboard, a mouse, a touchscreen, or a similar device. In some cases, the I / O controller 1010 may be implemented as part of one or more processors, such as the at least one processor 1040. In some cases, a user may interact with the device 1005 via the I / O controller 1010 or via hardware components controlled by the I / O controller 1010.
[0249] In some cases, the device 1005 may include a single antenna. However, in some other cases, the device 1005 may have more than one antenna, which may be capable of concurrently transmitting or receiving multiple wireless transmissions. The transceiver 1015 may communicate bi-directionally via the one or more antennas 1025 using wired or wireless links as described herein. For example, the transceiver 1015 may represent a wireless transceiver and may communicate bi-directionally with another wireless transceiver. The transceiver 1015 may also include a modem to modulate the packets, to provide the modulated packets to one or more antennas 1025 for transmission, and to demodulate packets received from the one or more antennas 1025. The transceiver 1015, or the transceiver 1015 and one or more antennas 1025, may be an example of a transmitter 715, a transmitter 815, a receiver 710, a receiver 810, or any combination thereof or component thereof, as described herein.
[0250] The at least one memory 1030 may include random access memory (RAM) and read-only memory (ROM) . The at least one memory 1030 may store computer-readable, computer-executable, or processor-executable code, such as the code 1035. The code 1035 may include instructions that, when executed by the at least one processor 1040, cause the device 1005 to perform various functions described herein. The code 1035 may be stored in a non-transitory computer-readable medium such as system memory or another type of memory. In some cases, the code 1035 may not be directly executable by the at least one processor 1040 but may cause a computer (e.g., when compiled and executed) to perform functions described herein. In some cases, the at least one memory 1030 may include, among other things, a basic I / O system (BIOS) which may control basic hardware or software operation such as the interaction with peripheral components or devices.
[0251] The at least one processor 1040 may include one or more intelligent hardware devices (e.g., one or more general-purpose processors, one or more DSPs, one or more CPUs, one or more graphics processing units (GPUs) , one or more neural processing units (NPUs) (also referred to as neural network processors or deep learning processors (DLPs) ) , one or more microcontrollers, one or more ASICs, one or more FPGAs, one or more programmable logic devices, discrete gate or transistor logic, one or more discrete hardware components, or any combination thereof) . In some cases, the at least one processor 1040 may be configured to operate a memory array using a memory controller. In some other cases, a memory controller may be integrated into the at least one processor 1040. The at least one processor 1040 may be configured to execute computer-readable instructions stored in a memory (e.g., the at least one memory 1030) to cause the device 1005 to perform various functions (e.g., functions or tasks supporting LP-WUSs for network energy savings) . For example, the device 1005 or a component of the device 1005 may include at least one processor 1040 and at least one memory 1030 coupled with or to the at least one processor 1040, the at least one processor 1040 and the at least one memory 1030 configured to perform various functions described herein.
[0252] In some examples, the at least one processor 1040 may include multiple processors and the at least one memory 1030 may include multiple memories. One or more of the multiple processors may be coupled with one or more of the multiple memories, which may, individually or collectively, be configured to perform various functions described herein. In some examples, the at least one processor 1040 may be a component of a processing system, which may refer to a system (such as a series) of machines, circuitry (including, for example, one or both of processor circuitry (which may include the at least one processor 1040) and memory circuitry (which may include the at least one memory 1030) ) , or components, that receives or obtains inputs and processes the inputs to produce, generate, or obtain a set of outputs. The processing system may be configured to perform one or more of the functions described herein. For example, the at least one processor 1040 or a processing system including the at least one processor 1040 may be configured to, configurable to, or operable to cause the device 1005 to perform one or more of the functions described herein. Further, as described herein, being “configured to, ” being “configurable to, ” and being “operable to” may be used interchangeably and may be associated with a capability, when executing code 1035 (e.g., processor-executable code) stored in the at least one memory 1030 or otherwise, to perform one or more of the functions described herein.
[0253] The communications manager 1020 may support wireless communication in accordance with examples as disclosed herein. For example, the communications manager 1020 is capable of, configured to, or operable to support a means for receiving control signaling that includes a configuration for a LP-WUS that represents a set of bits, where the configuration indicates that a first bit value corresponds to a first waveform type, where the configuration further indicates that a second bit value corresponds to a second waveform type, a third waveform type, or both, and where the first waveform type includes a transition between a first energy state and a second energy state, the second waveform type includes one of the first energy state or the second energy state, and the third waveform type includes a transition between the second energy state and the first energy state. The communications manager 1020 is capable of, configured to, or operable to support a means for receiving, while in a sleep state, the LP-WUS, where each bit of the set of bits is associated with a respective waveform in a respective time duration of the LP-WUS, where each respective waveform includes one of the first waveform type, the second waveform type, or the third waveform type. The communications manager 1020 is capable of, configured to, or operable to support a means for continuing to operate in the sleep state in accordance with respective waveforms for a first subset of bits of the set of bits, where the respective waveforms include one of the second waveform type or the third waveform type, and where the first subset of bits of the set of bits corresponds to the UE.
[0254] Additionally, or alternatively, the communications manager 1020 may support wireless communication in accordance with examples as disclosed herein. For example, the communications manager 1020 is capable of, configured to, or operable to support a means for receiving, while in an active state, control signaling that indicates whether the UE is to operate in accordance with a first state transition procedure or a second state transition procedure in response to reception of a LP-WUS. The communications manager 1020 is capable of, configured to, or operable to support a means for receiving, while in a sleep state, the LP-WUS, where the LP-WUS includes a codepoint value. The communications manager 1020 is capable of, configured to, or operable to support a means for performing one of the first state transition procedure or the second state transition procedure in accordance with the control signaling and the codepoint value, where the first state transition procedure includes a transition from the sleep state to the active state in accordance with an association between the codepoint value and the UE, and where the second state transition procedure includes a continuation of operations in the sleep state in accordance with the association between the codepoint value and the UE.
[0255] By including or configuring the communications manager 1020 in accordance with examples as described herein, the device 1005 may support techniques for LP-WUS configurations, which may provide for reduced power consumption, more efficient utilization of communication resources, and improved coordination between devices.
[0256] In some examples, the communications manager 1020 may be configured to perform various operations (e.g., receiving, monitoring, transmitting) using or otherwise in cooperation with the transceiver 1015, the one or more antennas 1025, or any combination thereof. Although the communications manager 1020 is illustrated as a separate component, in some examples, one or more functions described with reference to the communications manager 1020 may be supported by or performed by the at least one processor 1040, the at least one memory 1030, the code 1035, or any combination thereof. For example, the code 1035 may include instructions executable by the at least one processor 1040 to cause the device 1005 to perform various aspects of LP-WUSs for network energy savings as described herein, or the at least one processor 1040 and the at least one memory 1030 may be otherwise configured to, individually or collectively, perform or support such operations.
[0257] FIG. 11 shows a block diagram 1100 of a device 1105 that supports LP-WUSs for network energy savings in accordance with one or more aspects of the present disclosure. The device 1105 may be an example of aspects of a network entity 105 as described herein. The device 1105 may include a receiver 1110, a transmitter 1115, and a communications manager 1120. The device 1105, or one or more components of the device 1105 (e.g., the receiver 1110, the transmitter 1115, the communications manager 1120) , may include at least one processor, which may be coupled with at least one memory, to, individually or collectively, support or enable the described techniques. Each of these components may be in communication with one another (e.g., via one or more buses) .
[0258] The receiver 1110 may provide a means for obtaining (e.g., receiving, determining, identifying) information such as user data, control information, or any combination thereof (e.g., I / Q samples, symbols, packets, protocol data units, service data units) associated with various channels (e.g., control channels, data channels, information channels, channels associated with a protocol stack) . Information may be passed on to other components of the device 1105. In some examples, the receiver 1110 may support obtaining information by receiving signals via one or more antennas. Additionally, or alternatively, the receiver 1110 may support obtaining information by receiving signals via one or more wired (e.g., electrical, fiber optic) interfaces, wireless interfaces, or any combination thereof.
[0259] The transmitter 1115 may provide a means for outputting (e.g., transmitting, providing, conveying, sending) information generated by other components of the device 1105. For example, the transmitter 1115 may output information such as user data, control information, or any combination thereof (e.g., I / Q samples, symbols, packets, protocol data units, service data units) associated with various channels (e.g., control channels, data channels, information channels, channels associated with a protocol stack) . In some examples, the transmitter 1115 may support outputting information by transmitting signals via one or more antennas. Additionally, or alternatively, the transmitter 1115 may support outputting information by transmitting signals via one or more wired (e.g., electrical, fiber optic) interfaces, wireless interfaces, or any combination thereof. In some examples, the transmitter 1115 and the receiver 1110 may be co-located in a transceiver, which may include or be coupled with a modem.
[0260] The communications manager 1120, the receiver 1110, the transmitter 1115, or various combinations or components thereof may be examples of means for performing various aspects of managing LP-WUSs for network energy savings as described herein. For example, the communications manager 1120, the receiver 1110, the transmitter 1115, or various combinations or components thereof may be capable of performing one or more of the functions described herein.
[0261] In some examples, the communications manager 1120, the receiver 1110, the transmitter 1115, or various combinations or components thereof may be implemented in hardware (e.g., in communications management circuitry) . The hardware may include at least one of a processor, a DSP, a CPU, an ASIC, an FPGA or other programmable logic device, a microcontroller, discrete gate or transistor logic, discrete hardware components, or any combination thereof configured as or otherwise supporting, individually or collectively, a means for performing the functions described in the present disclosure. In some examples, at least one processor and at least one memory coupled with the at least one processor may be configured to perform one or more of the functions described herein (e.g., by one or more processors, individually or collectively, executing instructions stored in the at least one memory) .
[0262] Additionally, or alternatively, the communications manager 1120, the receiver 1110, the transmitter 1115, or various combinations or components thereof may be implemented in code (e.g., as communications management software or firmware) executed by at least one processor (e.g., referred to as a processor-executable code) . If implemented in code executed by at least one processor, the functions of the communications manager 1120, the receiver 1110, the transmitter 1115, or various combinations or components thereof may be performed by a general-purpose processor, a DSP, a CPU, an ASIC, an FPGA, a microcontroller, or any combination of these or other programmable logic devices (e.g., configured as or otherwise supporting, individually or collectively, a means for performing the functions described in the present disclosure) .
[0263] In some examples, the communications manager 1120 may be configured to perform various operations (e.g., receiving, determining, obtaining, monitoring, outputting, transmitting) using or otherwise in cooperation with the receiver 1110, the transmitter 1115, or both. For example, the communications manager 1120 may receive information from the receiver 1110, send information to the transmitter 1115, or be integrated in combination with the receiver 1110, the transmitter 1115, or both to obtain information, output information, or perform various other operations as described herein.
[0264] The communications manager 1120 may support wireless communication in accordance with examples as disclosed herein. For example, the communications manager 1120 is capable of, configured to, or operable to support a means for outputting control signaling that includes a configuration for a LP-WUS that represents a set of bits, where the configuration indicates that a first bit value corresponds to a first waveform type, where the configuration further indicates that a second bit value corresponds to a second waveform type, a third waveform type, or both, and where the first waveform type includes a transition between a first energy state and a second energy state, the second waveform type includes one of the first energy state or the second energy state, and the third waveform type includes a transition between the second energy state and the first energy state. The communications manager 1120 is capable of, configured to, or operable to support a means for generating the LP-WUS in accordance with the configuration, where each bit of the set of bits corresponds to a respective waveform, and where each respective waveform includes one of the first waveform type, the second waveform type, or the third waveform type. The communications manager 1120 is capable of, configured to, or operable to support a means for outputting the LP-WUS, where the respective waveform of each bit of the set of bits is conveyed in a respective time duration of the LP-WUS, and where respective subsets of bits of the set of bits are each associated with a respective UE of one or more UEs.
[0265] Additionally, or alternatively, the communications manager 1120 may support wireless communication in accordance with examples as disclosed herein. For example, the communications manager 1120 is capable of, configured to, or operable to support a means for outputting control signaling that indicates whether a UE is to operate in accordance with a first state transition procedure or a second state transition procedure in response to communication of a LP-WUS. The communications manager 1120 is capable of, configured to, or operable to support a means for outputting, to the UE, the LP-WUS that includes a codepoint value, where the first state transition procedure includes a transition, at the UE, from a sleep state to an active state in accordance with an association between the codepoint value and the UE, and where the second state transition procedure includes a continuation of operations, at the UE, in the sleep state in accordance with the association between the codepoint value and the UE.
[0266] By including or configuring the communications manager 1120 in accordance with examples as described herein, the device 1105 (e.g., at least one processor controlling or otherwise coupled with the receiver 1110, the transmitter 1115, the communications manager 1120, or a combination thereof) may support techniques for LP-WUS for network energy savings, which may provide for reduced power consumption, more efficient utilization of communication resources, and improved coordination between devices.
[0267] FIG. 12 shows a block diagram 1200 of a device 1205 that supports LP-WUSs for network energy savings in accordance with one or more aspects of the present disclosure. The device 1205 may be an example of aspects of a device 1105 or a network entity 105 as described herein. The device 1205 may include a receiver 1210, a transmitter 1215, and a communications manager 1220. The device 1205, or one of more components of the device 1205 (e.g., the receiver 1210, the transmitter 1215, the communications manager 1220) , may include at least one processor, which may be coupled with at least one memory, to support the described techniques. Each of these components may be in communication with one another (e.g., via one or more buses) .
[0268] The receiver 1210 may provide a means for obtaining (e.g., receiving, determining, identifying) information such as user data, control information, or any combination thereof (e.g., I / Q samples, symbols, packets, protocol data units, service data units) associated with various channels (e.g., control channels, data channels, information channels, channels associated with a protocol stack) . Information may be passed on to other components of the device 1205. In some examples, the receiver 1210 may support obtaining information by receiving signals via one or more antennas. Additionally, or alternatively, the receiver 1210 may support obtaining information by receiving signals via one or more wired (e.g., electrical, fiber optic) interfaces, wireless interfaces, or any combination thereof.
[0269] The transmitter 1215 may provide a means for outputting (e.g., transmitting, providing, conveying, sending) information generated by other components of the device 1205. For example, the transmitter 1215 may output information such as user data, control information, or any combination thereof (e.g., I / Q samples, symbols, packets, protocol data units, service data units) associated with various channels (e.g., control channels, data channels, information channels, channels associated with a protocol stack) . In some examples, the transmitter 1215 may support outputting information by transmitting signals via one or more antennas. Additionally, or alternatively, the transmitter 1215 may support outputting information by transmitting signals via one or more wired (e.g., electrical, fiber optic) interfaces, wireless interfaces, or any combination thereof. In some examples, the transmitter 1215 and the receiver 1210 may be co-located in a transceiver, which may include or be coupled with a modem.
[0270] The device 1205, or various components thereof, may be an example of means for performing various aspects of LP-WUSs for network energy savings as described herein. For example, the communications manager 1220 may include an LP-WUS configuration manager 1225, an LP-WUS generation manager 1230, an LP-WUS communication manager 1235, or any combination thereof. The communications manager 1220 may be an example of aspects of a communications manager 1120 as described herein. In some examples, the communications manager 1220, or various components thereof, may be configured to perform various operations (e.g., receiving, obtaining, monitoring, outputting, transmitting) using or otherwise in cooperation with the receiver 1210, the transmitter 1215, or both. For example, the communications manager 1220 may receive information from the receiver 1210, send information to the transmitter 1215, or be integrated in combination with the receiver 1210, the transmitter 1215, or both to obtain information, output information, or perform various other operations as described herein.
[0271] The communications manager 1220 may support wireless communication in accordance with examples as disclosed herein. The LP-WUS configuration manager 1225 is capable of, configured to, or operable to support a means for outputting control signaling that includes a configuration for a LP-WUS that represents a set of bits, where the configuration indicates that a first bit value corresponds to a first waveform type, where the configuration further indicates that a second bit value corresponds to a second waveform type, a third waveform type, or both, and where the first waveform type includes a transition between a first energy state and a second energy state, the second waveform type includes one of the first energy state or the second energy state, and the third waveform type includes a transition between the second energy state and the first energy state. The LP-WUS generation manager 1230 is capable of, configured to, or operable to support a means for generating the LP-WUS in accordance with the configuration, where each bit of the set of bits corresponds to a respective waveform, and where each respective waveform includes one of the first waveform type, the second waveform type, or the third waveform type. The LP-WUS communication manager 1235 is capable of, configured to, or operable to support a means for outputting the LP-WUS, where the respective waveform of each bit of the set of bits is conveyed in a respective time duration of the LP-WUS, and where respective subsets of bits of the set of bits are each associated with a respective UE of one or more UEs.
[0272] Additionally, or alternatively, the communications manager 1220 may support wireless communication in accordance with examples as disclosed herein. The LP-WUS configuration manager 1225 is capable of, configured to, or operable to support a means for outputting control signaling that indicates whether a UE is to operate in accordance with a first state transition procedure or a second state transition procedure in response to communication of a LP-WUS. The LP-WUS generation manager 1230 is capable of, configured to, or operable to support a means for outputting, to the UE, the LP-WUS that includes a codepoint value, where the first state transition procedure includes a transition, at the UE, from a sleep state to an active state in accordance with an association between the codepoint value and the UE, and where the second state transition procedure includes a continuation of operations, at the UE, in the sleep state in accordance with the association between the codepoint value and the UE.
[0273] FIG. 13 shows a block diagram 1300 of a communications manager 1320 that supports LP-WUSs for network energy savings in accordance with one or more aspects of the present disclosure. The communications manager 1320 may be an example of aspects of a communications manager 1120, a communications manager 1220, or both, as described herein. The communications manager 1320, or various components thereof, may be an example of means for performing various aspects of LP-WUSs for network energy savings as described herein. For example, the communications manager 1320 may include an LP-WUS configuration manager 1325, an LP-WUS generation manager 1330, an LP-WUS communication manager 1335, a bitmap manager 1340, a waveform mapping manager 1345, a FEC manager 1350, a waveform application manager 1355, a UE capability manager 1360, a CSI-RS manager 1365, a CSI report manager 1370, a PDCCH manager 1375, an CRC manager 1380, or any combination thereof. Each of these components, or components or subcomponents thereof (e.g., one or more processors, one or more memories) , may communicate, directly or indirectly, with one another (e.g., via one or more buses) . The communications may include communications within a protocol layer of a protocol stack, communications associated with a logical channel of a protocol stack (e.g., between protocol layers of a protocol stack, within a device, component, or virtualized component associated with a network entity 105, between devices, components, or virtualized components associated with a network entity 105) , or any combination thereof.
[0274] The communications manager 1320 may support wireless communication in accordance with examples as disclosed herein. The LP-WUS configuration manager 1325 is capable of, configured to, or operable to support a means for outputting control signaling that includes a configuration for a LP-WUS that represents a set of bits, where the configuration indicates that a first bit value corresponds to a first waveform type, where the configuration further indicates that a second bit value corresponds to a second waveform type, a third waveform type, or both, and where the first waveform type includes a transition between a first energy state and a second energy state, the second waveform type includes one of the first energy state or the second energy state, and the third waveform type includes a transition between the second energy state and the first energy state. The LP-WUS generation manager 1330 is capable of, configured to, or operable to support a means for generating the LP-WUS in accordance with the configuration, where each bit of the set of bits corresponds to a respective waveform, and where each respective waveform includes one of the first waveform type, the second waveform type, or the third waveform type. The LP-WUS communication manager 1335 is capable of, configured to, or operable to support a means for outputting the LP-WUS, where the respective waveform of each bit of the set of bits is conveyed in a respective time duration of the LP-WUS, and where respective subsets of bits of the set of bits are each associated with a respective UE of one or more UEs.
[0275] In some examples, to support generating the LP-WUS, the bitmap manager 1340 is capable of, configured to, or operable to support a means for obtaining a second set of bits, where each bit of the second set of bits is associated with a respective UE of the one or more UEs. In some examples, to support generating the LP-WUS, the waveform mapping manager 1345 is capable of, configured to, or operable to support a means for mapping each bit of the second set of bits to one of the first waveform type, the second waveform type, or the third waveform type in accordance with a bit value of each bit of the second set of bits and the configuration. In some examples, to support generating the LP-WUS, the FEC manager 1350 is capable of, configured to, or operable to support a means for obtaining the set of bits in accordance with a forward error correction encoding procedure on the second set of bits, where each bit of the set of bits is mapped to one of the first waveform type, the second waveform type, or the third waveform type. In some examples, to support generating the LP-WUS, the waveform application manager 1355 is capable of, configured to, or operable to support a means for applying one of the first waveform type, the second waveform type, or the third waveform type to each bit of the set of bits in accordance with mapping each bit of the set of bits to one of the first waveform type, the second waveform type, or the third waveform type.
[0276] In some examples, the CRC manager 1380 is capable of, configured to, or operable to support a means for obtaining a set of cyclic redundancy check bits in accordance with obtainment of the second set of bits, where each bit of the set of cyclic redundancy check bits is mapped to one of the first waveform type, the second waveform type, or the third waveform type at a same time as mapping each bit of the second set of bits.
[0277] In some examples, to support generating the LP-WUS, the bitmap manager 1340 is capable of, configured to, or operable to support a means for obtaining a second set of bits, where each bit of the second set of bits is associated with a respective UE of the one or more UEs. In some examples, to support generating the LP-WUS, the FEC manager 1350 is capable of, configured to, or operable to support a means for obtaining the set of bits in accordance with a forward error correction encoding procedure on the second set of bits. In some examples, to support generating the LP-WUS, the waveform mapping manager 1345 is capable of, configured to, or operable to support a means for mapping each bit of the set of bits with one of the first waveform type, the second waveform type, or the third waveform type in accordance with a bit value of each bit of the set of bits and the configuration. In some examples, to support generating the LP-WUS, the waveform application manager 1355 is capable of, configured to, or operable to support a means for applying one of the first waveform type, the second waveform type, or the third waveform type to each bit of the set of bits in accordance with mapping each bit of the set of bits to one of the first waveform type, the second waveform type, or the third waveform type.
[0278] In some examples, the CRC manager 1380 is capable of, configured to, or operable to support a means for obtaining a set of cyclic redundancy check bits in accordance with obtainment of the set of bits, where each bit of the set of cyclic redundancy check bits is mapped to the first waveform type, the second waveform type, or the third waveform type at a same time as mapping each bit of the set of bits.
[0279] In some examples, the UE capability manager 1360 is capable of, configured to, or operable to support a means for obtaining, from a first UE, signaling that indicates a capability of the first UE to receive the LP-WUS that includes the second waveform type, the third waveform type, or both, where the configuration for the LP-WUS is in accordance with the capability of the first UE.
[0280] In some examples, the CSI-RS manager 1365 is capable of, configured to, or operable to support a means for outputting, to a first UE, one or more CSI-RS. In some examples, the CSI report manager 1370 is capable of, configured to, or operable to support a means for obtaining, a CSI report that indicates one or more channel measurements associated with the one or more CSI-RS, where respective waveforms associated with a first subset of bits of the set of bits associated with the first UE include the third waveform type in accordance with the one or more channel measurements.
[0281] Additionally, or alternatively, the communications manager 1320 may support wireless communication in accordance with examples as disclosed herein. In some examples, the LP-WUS configuration manager 1325 is capable of, configured to, or operable to support a means for outputting control signaling that indicates whether a UE is to operate in accordance with a first state transition procedure or a second state transition procedure in response to communication of a LP-WUS. In some examples, the LP-WUS generation manager 1330 is capable of, configured to, or operable to support a means for outputting, to the UE, the LP-WUS that includes a codepoint value, where the first state transition procedure includes a transition, at the UE, from a sleep state to an active state in accordance with an association between the codepoint value and the UE, and where the second state transition procedure includes a continuation of operations, at the UE, in the sleep state in accordance with the association between the codepoint value and the UE.
[0282] In some examples, the control signaling indicates for the UE to operate in accordance with the first state transition procedure, and the PDCCH manager 1375 is capable of, configured to, or operable to support a means for outputting one or more control channel messages to the UE in accordance with the codepoint value and the first state transition procedure.
[0283] In some examples, the control signaling indicates for the UE to operate in accordance with the first state transition procedure, and the PDCCH manager 1375 is capable of, configured to, or operable to support a means for refraining to output one or more control channel messages to the UE in accordance with the codepoint value and the first state transition procedure.
[0284] In some examples, the control signaling indicates for the UE to operate in accordance with the second state transition procedure, and the PDCCH manager 1375 is capable of, configured to, or operable to support a means for refraining to output one or more control channel messages to the UE in accordance with the codepoint value and the second state transition procedure.
[0285] In some examples, the control signaling indicates for the UE to operate in accordance with the second state transition procedure, and the PDCCH manager 1375 is capable of, configured to, or operable to support a means for outputting one or more control channel messages to the UE in accordance with the codepoint value and the second state transition procedure.
[0286] FIG. 14 shows a diagram of a system 1400 including a device 1405 that supports LP-WUSs for network energy savings in accordance with one or more aspects of the present disclosure. The device 1405 may be an example of or include components of a device 1105, a device 1205, or a network entity 105 as described herein. The device 1405 may communicate with other network devices or network equipment such as one or more of the network entities 105, UEs 115, or any combination thereof. The communications may include communications over one or more wired interfaces, over one or more wireless interfaces, or any combination thereof. The device 1405 may include components that support outputting and obtaining communications, such as a communications manager 1420, a transceiver 1410, one or more antennas 1415, at least one memory 1425, code 1430, and at least one processor 1435. These components may be in electronic communication or otherwise coupled (e.g., operatively, communicatively, functionally, electronically, electrically) via one or more buses (e.g., a bus 1440) .
[0287] The transceiver 1410 may support bi-directional communications via wired links, wireless links, or both as described herein. In some examples, the transceiver 1410 may include a wired transceiver and may communicate bi-directionally with another wired transceiver. Additionally, or alternatively, in some examples, the transceiver 1410 may include a wireless transceiver and may communicate bi-directionally with another wireless transceiver. In some examples, the device 1405 may include one or more antennas 1415, which may be capable of transmitting or receiving wireless transmissions (e.g., concurrently) . The transceiver 1410 may also include a modem to modulate signals, to provide the modulated signals for transmission (e.g., by one or more antennas 1415, by a wired transmitter) , to receive modulated signals (e.g., from one or more antennas 1415, from a wired receiver) , and to demodulate signals. In some implementations, the transceiver 1410 may include one or more interfaces, such as one or more interfaces coupled with the one or more antennas 1415 that are configured to support various receiving or obtaining operations, or one or more interfaces coupled with the one or more antennas 1415 that are configured to support various transmitting or outputting operations, or a combination thereof. In some implementations, the transceiver 1410 may include or be configured for coupling with one or more processors or one or more memory components that are operable to perform or support operations based on received or obtained information or signals, or to generate information or other signals for transmission or other outputting, or any combination thereof. In some implementations, the transceiver 1410, or the transceiver 1410 and the one or more antennas 1415, or the transceiver 1410 and the one or more antennas 1415 and one or more processors or one or more memory components (e.g., the at least one processor 1435, the at least one memory 1425, or both) , may be included in a chip or chip assembly that is installed in the device 1405. In some examples, the transceiver 1410 may be operable to support communications via one or more communications links (e.g., communication link (s) 125, backhaul communication link (s) 120, a midhaul communication link 162, a fronthaul communication link 168) .
[0288] The at least one memory 1425 may include RAM, ROM, or any combination thereof. The at least one memory 1425 may store computer-readable, computer-executable, or processor-executable code, such as the code 1430. The code 1430 may include instructions that, when executed by one or more of the at least one processor 1435, cause the device 1405 to perform various functions described herein. The code 1430 may be stored in a non-transitory computer-readable medium such as system memory or another type of memory. In some cases, the code 1430 may not be directly executable by a processor of the at least one processor 1435 but may cause a computer (e.g., when compiled and executed) to perform functions described herein. In some cases, the at least one memory 1425 may include, among other things, a BIOS which may control basic hardware or software operation such as the interaction with peripheral components or devices. In some examples, the at least one processor 1435 may include multiple processors and the at least one memory 1425 may include multiple memories. One or more of the multiple processors may be coupled with one or more of the multiple memories which may, individually or collectively, be configured to perform various functions herein (for example, as part of a processing system) .
[0289] The at least one processor 1435 may include one or more intelligent hardware devices (e.g., one or more general-purpose processors, one or more DSPs, one or more CPUs, one or more graphics processing units (GPUs) , one or more neural processing units (NPUs) (also referred to as neural network processors or deep learning processors (DLPs) ) , one or more microcontrollers, one or more ASICs, one or more FPGAs, one or more programmable logic devices, discrete gate or transistor logic, one or more discrete hardware components, or any combination thereof) . In some cases, the at least one processor 1435 may be configured to operate a memory array using a memory controller. In some other cases, a memory controller may be integrated into one or more of the at least one processor 1435. The at least one processor 1435 may be configured to execute computer-readable instructions stored in a memory (e.g., one or more of the at least one memory 1425) to cause the device 1405 to perform various functions (e.g., functions or tasks supporting LP-WUSs for network energy savings) . For example, the device 1405 or a component of the device 1405 may include at least one processor 1435 and at least one memory 1425 coupled with one or more of the at least one processor 1435, the at least one processor 1435 and the at least one memory 1425 configured to perform various functions described herein. The at least one processor 1435 may be an example of a cloud-computing platform (e.g., one or more physical nodes and supporting software such as operating systems, virtual machines, or container instances) that may host the functions (e.g., by executing code 1430) to perform the functions of the device 1405. The at least one processor 1435 may be any one or more suitable processors capable of executing scripts or instructions of one or more software programs stored in the device 1405 (such as within one or more of the at least one memory 1425) .
[0290] In some examples, the at least one processor 1435 may include multiple processors and the at least one memory 1425 may include multiple memories. One or more of the multiple processors may be coupled with one or more of the multiple memories, which may, individually or collectively, be configured to perform various functions herein. In some examples, the at least one processor 1435 may be a component of a processing system, which may refer to a system (such as a series) of machines, circuitry (including, for example, one or both of processor circuitry (which may include the at least one processor 1435) and memory circuitry (which may include the at least one memory 1425) ) , or components, that receives or obtains inputs and processes the inputs to produce, generate, or obtain a set of outputs. The processing system may be configured to perform one or more of the functions described herein. For example, the at least one processor 1435 or a processing system including the at least one processor 1435 may be configured to, configurable to, or operable to cause the device 1405 to perform one or more of the functions described herein. Further, as described herein, being “configured to, ” being “configurable to, ” and being “operable to” may be used interchangeably and may be associated with a capability, when executing code stored in the at least one memory 1425 or otherwise, to perform one or more of the functions described herein.
[0291] In some examples, a bus 1440 may support communications of (e.g., within) a protocol layer of a protocol stack. In some examples, a bus 1440 may support communications associated with a logical channel of a protocol stack (e.g., between protocol layers of a protocol stack) , which may include communications performed within a component of the device 1405, or between different components of the device 1405 that may be co-located or located in different locations (e.g., where the device 1405 may refer to a system in which one or more of the communications manager 1420, the transceiver 1410, the at least one memory 1425, the code 1430, and the at least one processor 1435 may be located in one of the different components or divided between different components) .
[0292] In some examples, the communications manager 1420 may manage aspects of communications with a core network 130 (e.g., via one or more wired or wireless backhaul links) . For example, the communications manager 1420 may manage the transfer of data communications for client devices, such as one or more UEs 115. In some examples, the communications manager 1420 may manage communications with one or more other network entities 105, and may include a controller or scheduler for controlling communications with UEs 115 (e.g., in cooperation with the one or more other network devices) . In some examples, the communications manager 1420 may support an X2 interface within an LTE / LTE-A wireless communications network technology to provide communication between network entities 105.
[0293] The communications manager 1420 may support wireless communication in accordance with examples as disclosed herein. For example, the communications manager 1420 is capable of, configured to, or operable to support a means for outputting control signaling that includes a configuration for a LP-WUS that represents a set of bits, where the configuration indicates that a first bit value corresponds to a first waveform type, where the configuration further indicates that a second bit value corresponds to a second waveform type, a third waveform type, or both, and where the first waveform type includes a transition between a first energy state and a second energy state, the second waveform type includes one of the first energy state or the second energy state, and the third waveform type includes a transition between the second energy state and the first energy state. The communications manager 1420 is capable of, configured to, or operable to support a means for generating the LP-WUS in accordance with the configuration, where each bit of the set of bits corresponds to a respective waveform, and where each respective waveform includes one of the first waveform type, the second waveform type, or the third waveform type. The communications manager 1420 is capable of, configured to, or operable to support a means for outputting the LP-WUS, where the respective waveform of each bit of the set of bits is conveyed in a respective time duration of the LP-WUS, and where respective subsets of bits of the set of bits are each associated with a respective UE of one or more UEs.
[0294] Additionally, or alternatively, the communications manager 1420 may support wireless communication in accordance with examples as disclosed herein. For example, the communications manager 1420 is capable of, configured to, or operable to support a means for outputting control signaling that indicates whether a UE is to operate in accordance with a first state transition procedure or a second state transition procedure in response to communication of a LP-WUS. The communications manager 1420 is capable of, configured to, or operable to support a means for outputting, to the UE, the LP-WUS that includes a codepoint value, where the first state transition procedure includes a transition, at the UE, from a sleep state to an active state in accordance with an association between the codepoint value and the UE, and where the second state transition procedure includes a continuation of operations, at the UE, in the sleep state in accordance with the association between the codepoint value and the UE.
[0295] By including or configuring the communications manager 1420 in accordance with examples as described herein, the device 1405 may support techniques for LP-WUS configurations, which may provide for reduced power consumption, more efficient utilization of communication resources, and improved coordination between devices.
[0296] In some examples, the communications manager 1420 may be configured to perform various operations (e.g., receiving, obtaining, monitoring, outputting, transmitting) using or otherwise in cooperation with the transceiver 1410, the one or more antennas 1415 (e.g., where applicable) , or any combination thereof. Although the communications manager 1420 is illustrated as a separate component, in some examples, one or more functions described with reference to the communications manager 1420 may be supported by or performed by the transceiver 1410, one or more of the at least one processor 1435, one or more of the at least one memory 1425, the code 1430, or any combination thereof (for example, by a processing system including at least a portion of the at least one processor 1435, the at least one memory 1425, the code 1430, or any combination thereof) . For example, the code 1430 may include instructions executable by one or more of the at least one processor 1435 to cause the device 1405 to perform various aspects of LP-WUSs for network energy savings as described herein, or the at least one processor 1435 and the at least one memory 1425 may be otherwise configured to, individually or collectively, perform or support such operations.
[0297] FIG. 15 shows a flowchart illustrating a method 1500 that supports LP-WUSs for network energy savings in accordance with one or more aspects of the present disclosure. The operations of the method 1500 may be implemented by a UE or its components as described herein. For example, the operations of the method 1500 may be performed by a UE 115 as described with reference to FIGs. 1 through 10. In some examples, a UE may execute a set of instructions to control the functional elements of the UE to perform the described functions. Additionally, or alternatively, the UE may perform aspects of the described functions using special-purpose hardware.
[0298] At 1505, the method may include receiving control signaling that includes a configuration for a LP-WUS that represents a set of bits, where the configuration indicates that a first bit value corresponds to a first waveform type, where the configuration further indicates that a second bit value corresponds to a second waveform type, a third waveform type, or both, and where the first waveform type includes a transition between a first energy state and a second energy state, the second waveform type includes one of the first energy state or the second energy state, and the third waveform type includes a transition between the second energy state and the first energy state. The operations of 1505 may be performed in accordance with examples as disclosed herein. In some examples, aspects of the operations of 1505 may be performed by an LP-WUS Configuration Component 925 as described with reference to FIG. 9.
[0299] At 1510, the method may include receiving, while in a sleep state, the LP-WUS, where each bit of the set of bits is associated with a respective waveform in a respective time duration of the LP-WUS, where each respective waveform includes one of the first waveform type, the second waveform type, or the third waveform type. The operations of 1510 may be performed in accordance with examples as disclosed herein. In some examples, aspects of the operations of 1510 may be performed by a WUR Component 930 as described with reference to FIG. 9.
[0300] At 1515, the method may include continuing to operate in the sleep state in accordance with respective waveforms for a first subset of bits of the set of bits, where the respective waveforms include one of the second waveform type or the third waveform type, and where the first subset of bits of the set of bits corresponds to the UE. The operations of 1515 may be performed in accordance with examples as disclosed herein. In some examples, aspects of the operations of 1515 may be performed by a State Transition Component 935 as described with reference to FIG. 9.
[0301] FIG. 16 shows a flowchart illustrating a method 1600 that supports LP-WUSs for network energy savings in accordance with one or more aspects of the present disclosure. The operations of the method 1600 may be implemented by a network entity or its components as described herein. For example, the operations of the method 1600 may be performed by a network entity as described with reference to FIGs. 1 through 6 and 11 through 14. In some examples, a network entity may execute a set of instructions to control the functional elements of the network entity to perform the described functions. Additionally, or alternatively, the network entity may perform aspects of the described functions using special-purpose hardware.
[0302] At 1605, the method may include outputting control signaling that includes a configuration for a LP-WUS that represents a set of bits, where the configuration indicates that a first bit value corresponds to a first waveform type, where the configuration further indicates that a second bit value corresponds to a second waveform type, a third waveform type, or both, and where the first waveform type includes a transition between a first energy state and a second energy state, the second waveform type includes one of the first energy state or the second energy state, and the third waveform type includes a transition between the second energy state and the first energy state. The operations of 1605 may be performed in accordance with examples as disclosed herein. In some examples, aspects of the operations of 1605 may be performed by an LP-WUS configuration manager 1325 as described with reference to FIG. 13.
[0303] At 1610, the method may include generating the LP-WUS in accordance with the configuration, where each bit of the set of bits corresponds to a respective waveform, and where each respective waveform includes one of the first waveform type, the second waveform type, or the third waveform type. The operations of 1610 may be performed in accordance with examples as disclosed herein. In some examples, aspects of the operations of 1610 may be performed by an LP-WUS generation manager 1330 as described with reference to FIG. 13.
[0304] At 1615, the method may include outputting the LP-WUS, where the respective waveform of each bit of the set of bits is conveyed in a respective time duration of the LP-WUS, and where respective subsets of bits of the set of bits are each associated with a respective UE of one or more UEs. The operations of 1615 may be performed in accordance with examples as disclosed herein. In some examples, aspects of the operations of 1615 may be performed by an LP-WUS communication manager 1335 as described with reference to FIG. 13.
[0305] FIG. 17 shows a flowchart illustrating a method 1700 that supports LP-WUSs for network energy savings in accordance with one or more aspects of the present disclosure. The operations of the method 1700 may be implemented by a UE or its components as described herein. For example, the operations of the method 1700 may be performed by a UE 115 as described with reference to FIGs. 1 through 10. In some examples, a UE may execute a set of instructions to control the functional elements of the UE to perform the described functions. Additionally, or alternatively, the UE may perform aspects of the described functions using special-purpose hardware.
[0306] At 1705, the method may include receiving, while in an active state, control signaling that indicates whether the UE is to operate in accordance with a first state transition procedure or a second state transition procedure in response to reception of a LP-WUS. The operations of 1705 may be performed in accordance with examples as disclosed herein. In some examples, aspects of the operations of 1705 may be performed by a State Transition Component 935 as described with reference to FIG. 9.
[0307] At 1710, the method may include receiving, while in a sleep state, the LP-WUS, where the LP-WUS includes a codepoint value. The operations of 1710 may be performed in accordance with examples as disclosed herein. In some examples, aspects of the operations of 1710 may be performed by a WUR Component 930 as described with reference to FIG. 9.
[0308] At 1715, the method may include performing one of the first state transition procedure or the second state transition procedure in accordance with the control signaling and the codepoint value, where the first state transition procedure includes a transition from the sleep state to the active state in accordance with an association between the codepoint value and the UE, and where the second state transition procedure includes a continuation of operations in the sleep state in accordance with the association between the codepoint value and the UE. The operations of 1715 may be performed in accordance with examples as disclosed herein. In some examples, aspects of the operations of 1715 may be performed by a State Transition Component 935 as described with reference to FIG. 9.
[0309] FIG. 18 shows a flowchart illustrating a method 1800 that supports LP-WUSs for network energy savings in accordance with one or more aspects of the present disclosure. The operations of the method 1800 may be implemented by a network entity or its components as described herein. For example, the operations of the method 1800 may be performed by a network entity as described with reference to FIGs. 1 through 6 and 11 through 14. In some examples, a network entity may execute a set of instructions to control the functional elements of the network entity to perform the described functions. Additionally, or alternatively, the network entity may perform aspects of the described functions using special-purpose hardware.
[0310] At 1805, the method may include outputting control signaling that indicates whether a UE is to operate in accordance with a first state transition procedure or a second state transition procedure in response to communication of a LP-WUS. The operations of 1805 may be performed in accordance with examples as disclosed herein. In some examples, aspects of the operations of 1805 may be performed by an LP-WUS configuration manager 1325 as described with reference to FIG. 13.
[0311] At 1810, the method may include outputting, to the UE, the LP-WUS that includes a codepoint value, where the first state transition procedure includes a transition, at the UE, from a sleep state to an active state in accordance with an association between the codepoint value and the UE, and where the second state transition procedure includes a continuation of operations, at the UE, in the sleep state in accordance with the association between the codepoint value and the UE. The operations of 1810 may be performed in accordance with examples as disclosed herein. In some examples, aspects of the operations of 1810 may be performed by an LP-WUS generation manager 1330 as described with reference to FIG. 13.
[0312] The following provides an overview of aspects of the present disclosure:
[0313] Aspect 1: An apparatus for wireless communication at a UE, comprising: one or more memories; and one or more processors coupled with the one or more memories and configured to cause the UE to: receive control signaling that comprises a configuration for a LP-WUS that represents a set of bits, wherein the configuration indicates that a first bit value corresponds to a first waveform type, wherein the configuration further indicates that a second bit value corresponds to a second waveform type, a third waveform type, or both, and wherein the first waveform type comprises a transition between a first energy state and a second energy state, the second waveform type comprises one of the first energy state or the second energy state, and the third waveform type comprises a transition between the second energy state and the first energy state; receive, while in a sleep state, the LP-WUS, wherein each bit of the set of bits is associated with a respective waveform in a respective time duration of the LP-WUS, wherein each respective waveform comprises one of the first waveform type, the second waveform type, or the third waveform type; and continue to operate in the sleep state in accordance with respective waveforms for a first subset of bits of the set of bits, wherein the respective waveforms comprise one of the second waveform type or the third waveform type, and wherein the first subset of bits of the set of bits corresponds to the UE.
[0314] Aspect 2: The apparatus of aspect 1, wherein the one or more processors are configured to cause the UE to: transmit signaling that indicates a capability of the UE to receive the LP-WUS that comprises the second waveform type, the third waveform type, or both, wherein the configuration for the LP-WUS is in accordance with the capability of the UE.
[0315] Aspect 3: The apparatus of any of aspects 1 through 2, wherein the one or more processors are configured to cause the UE to: receive, while in an active state, one or more channel state reference signals; and transmit, while in the active state, a channel state information report or a measurement report that indicates one or more channel measurements measured via the one or more channel state reference signals, wherein the respective waveforms associated with the first subset of bits comprise the third waveform type in accordance with the one or more channel measurements.
[0316] Aspect 4: The apparatus of any of aspects 1 through 3, wherein the one or more processors are configured to cause the UE to: receive, while in an active state, one or more reference signals; and transmit, while in the active state, a layer 1 or layer 3 report that indicates one or more channel measurements measured via the one or more reference signals, wherein the respective waveforms associated with the first subset of bits comprise the third waveform type in accordance with the one or more channel measurements.
[0317] Aspect 5: The apparatus of any of aspects 1 through 4, wherein the respective waveforms for the first subset of bits comprise the third waveform type and respective waveforms for a second subset of bits of the set of bits comprise the second waveform type.
[0318] Aspect 6: The apparatus of aspect 5, wherein a presence of the second waveform type for the respective waveforms of the first subset of bits and a presence of the third waveform type in the respective waveforms for the second subset of bits is in accordance with a first pattern of a plurality of patterns.
[0319] Aspect 7: The apparatus of any of aspects 5 through 6, wherein the one or more processors are configured to cause the UE to: perform one or more timing synchronization operations via the respective waveforms for the first subset of bits in accordance with the third waveform type of the respective waveforms for the first subset of bits.
[0320] Aspect 8: The apparatus of any of aspects 5 through 7, wherein the one or more processors are configured to cause the UE to: adjust an automatic gain control at the UE via the respective waveforms for the first subset of bits in accordance with the third waveform type of the respective waveforms for the first subset of bits.
[0321] Aspect 9: The apparatus of any of aspects 1 through 8, wherein the LP-WUS further represents a set of cyclic redundancy check bits in addition to the set of bits, and respective waveforms for each bit of the set of cyclic redundancy check bits corresponds to one of the first waveform type, the second waveform type, the third waveform type, or any combination thereof.
[0322] Aspect 10: The apparatus of aspect 9, wherein the control signaling further indicates whether the LP-WUS indicates the set of cyclic redundancy check bits in addition to the set of bits.
[0323] Aspect 11: The apparatus of any of aspects 1 through 10, wherein the control signaling further indicates whether a mapping between the second waveform type and one or more bits of the set of bits occurs either prior to forward error correction coding or subsequent to the forward error correction coding, the one or more bits of the set of bits comprise the second bit value, and the LP-WUS is in accordance with the control signaling.
[0324] Aspect 12: The apparatus of any of aspects 1 through 4, wherein the respective waveforms for each bit of the first subset of bits comprise the second waveform type.
[0325] Aspect 13: The apparatus of any of aspects 1 through 12, wherein the first energy state comprises a presence of energy, and the second energy state comprises an absence of energy.
[0326] Aspect 14: The apparatus of any of aspects 1 through 12, wherein the first energy state comprises an absence of energy, and the second energy state comprises a presence of energy.
[0327] Aspect 15: The apparatus of any of aspects 1 through 14, wherein the UE comprises a main radio and a WUR, and the UE is configured to utilize the main radio to perform one or more operations in an active state, and the UE is configured to utilize the WUR to perform one or more operations when the UE is in the sleep state.
[0328] Aspect 16: The apparatus of any of aspects 1 through 15, wherein the first bit value indicates for the UE to transition from the sleep state to an active state, and the second bit value indicates for the UE to continue to perform one or more operations in the sleep state.
[0329] Aspect 17: The apparatus of any of aspects 1 through 16, wherein a second subset of bits of the set of bits correspond to a second UE that is different from the UE.
[0330] Aspect 18: An apparatus for wireless communication at a network entity, comprising: one or more memories; and one or more processors coupled with the one or more memories and configured to cause the network entity to: output control signaling that comprises a configuration for a LP-WUS that represents a set of bits, wherein the configuration indicates that a first bit value corresponds to a first waveform type, wherein the configuration further indicates that a second bit value corresponds to a second waveform type, a third waveform type, or both, and wherein the first waveform type comprises a transition between a first energy state and a second energy state, the second waveform type comprises one of the first energy state or the second energy state, and the third waveform type comprises a transition between the second energy state and the first energy state; generate the LP-WUS in accordance with the configuration, wherein each bit of the set of bits corresponds to a respective waveform, and wherein each respective waveform comprises one of the first waveform type, the second waveform type, or the third waveform type; and output the LP-WUS, wherein the respective waveform of each bit of the set of bits is conveyed in a respective time duration of the LP-WUS, and wherein respective subsets of bits of the set of bits are each associated with a respective UE of one or more UEs.
[0331] Aspect 19: The apparatus of aspect 18, wherein, to generate the LP-WUS, wherein the one or more processors are configured to cause the network entity to: obtain a second set of bits, wherein each bit of the second set of bits is associated with a respective UE of the one or more UEs; map each bit of the second set of bits to one of the first waveform type, the second waveform type, or the third waveform type in accordance with a bit value of each bit of the second set of bits and the configuration; obtain the set of bits in accordance with a forward error correction encoding procedure on the second set of bits, wherein each bit of the set of bits is mapped to one of the first waveform type, the second waveform type, or the third waveform type; and apply one of the first waveform type, the second waveform type, or the third waveform type to each bit of the set of bits in accordance with mapping each bit of the set of bits to one of the first waveform type, the second waveform type, or the third waveform type.
[0332] Aspect 20: The apparatus of aspect 19, wherein the one or more processors are configured to cause the network entity to: obtain a set of cyclic redundancy check bits in accordance with obtainment of the second set of bits, wherein each bit of the set of cyclic redundancy check bits is mapped to one of the first waveform type, the second waveform type, or the third waveform type at a same time as mapping each bit of the second set of bits.
[0333] Aspect 21: The apparatus of aspect 18, wherein, to generate the LP-WUS, the one or more processors are configured to cause the network entity to: obtain a second set of bits, wherein each bit of the second set of bits is associated with a respective UE of the one or more UEs; obtain the set of bits in accordance with a forward error correction encoding procedure on the second set of bits; map each bit of the set of bits with one of the first waveform type, the second waveform type, or the third waveform type in accordance with a bit value of each bit of the set of bits and the configuration; and apply one of the first waveform type, the second waveform type, or the third waveform type to each bit of the set of bits in accordance with mapping each bit of the set of bits to one of the first waveform type, the second waveform type, or the third waveform type.
[0334] Aspect 22: The apparatus of aspect 21, wherein the one or more processors are configured to cause the network entity to: obtain a set of cyclic redundancy check bits in accordance with obtainment of the set of bits, wherein each bit of the set of cyclic redundancy check bits is mapped to the first waveform type, the second waveform type, or the third waveform type at a same time as mapping each bit of the set of bits.
[0335] Aspect 23: The apparatus of any of aspects 18 through 22, wherein the one or more processors are configured to cause the network entity to: obtain, from a first UE, signaling that indicates a capability of the first UE to receive the LP-WUS that comprises the second waveform type, the third waveform type, or both, wherein the configuration for the LP-WUS is in accordance with the capability of the first UE.
[0336] Aspect 24: The apparatus of any of aspects 18 through 23, wherein the one or more processors are configured to cause the network entity to: output, to a first UE, one or more channel state reference signals; and obtain, a channel state information report that indicates one or more channel measurements associated with the one or more channel state reference signals, wherein respective waveforms associated with a first subset of bits of the set of bits associated with the first UE comprise the third waveform type in accordance with the one or more channel measurements.
[0337] Aspect 25: An apparatus for wireless communication at a UE, comprising: one or more memories; and one or more processors coupled with the one or more memories and configured to cause the UE to: receive, while in an active state, control signaling that indicates whether the UE is to operate in accordance with a first state transition procedure or a second state transition procedure in response to reception of a LP-WUS; receive, while in a sleep state, the LP-WUS, wherein the LP-WUS comprises a codepoint value; and perform one of the first state transition procedure or the second state transition procedure in accordance with the control signaling and the codepoint value, wherein the first state transition procedure comprises a transition from the sleep state to the active state in accordance with an association between the codepoint value and the UE, and wherein the second state transition procedure comprises a continuation of operations in the sleep state in accordance with the association between the codepoint value and the UE.
[0338] Aspect 26: The apparatus of aspect 25, wherein the control signaling indicates for the UE to operate in accordance with the first state transition procedure, wherein the codepoint value is associated with the UE, and wherein, to perform the first state transition procedure, the one or more processors are configured to cause the UE to: transition from the sleep state to the active state in accordance with the codepoint value and the first state transition procedure.
[0339] Aspect 27: The apparatus of aspect 25, wherein the control signaling indicates for the UE to operate in accordance with the first state transition procedure, wherein the codepoint value is unassociated with the UE, and wherein, to perform the first state transition procedure, the one or more processors are configured to cause the UE to: refrain to transition from the sleep state to the active state in accordance with the codepoint value and the first state transition procedure.
[0340] Aspect 28: The apparatus of aspect 25, wherein the control signaling indicates for the UE to operate in accordance with the second state transition procedure, wherein the codepoint value is associated with the UE, and wherein, to perform the second state transition procedure, the one or more processors are configured to cause the UE to: refrain to transition from the sleep state to the active state in accordance with the codepoint value and the second state transition procedure.
[0341] Aspect 29: The apparatus of aspect 25, wherein the control signaling indicates for the UE to operate in accordance with the second state transition procedure, wherein the codepoint value is unassociated with the UE, and wherein, to perform the second state transition procedure, the one or more processors are configured to cause the UE to: transition from the sleep state to the active state in accordance with the codepoint value and the second state transition procedure.
[0342] Aspect 30: The apparatus of aspect 25, wherein the UE comprises a main radio and a WUR, and the UE is configured to utilize the main radio to perform one or more operations in the active state, and the UE is configured to utilize the WUR to perform one or more operations in the sleep state.
[0343] Aspect 31: The apparatus of aspect 30, wherein, to transition from the active state to the sleep state, the one or more processors are configured to cause the UE to: transition from performing the one or more operations via the WUR to performing the one or more operations via the main radio.
[0344] Aspect 32: An apparatus for wireless communication at a network entity, comprising: one or more memories; and one or more processors coupled with the one or more memories and configured to cause the network entity to: output control signaling that indicates whether a UE is to operate in accordance with a first state transition procedure or a second state transition procedure in response to communication of a LP-WUS; and output, to the UE, the LP-WUS that comprises a codepoint value, wherein the first state transition procedure comprises a transition, at the UE, from a sleep state to an active state in accordance with an association between the codepoint value and the UE, and wherein the second state transition procedure comprises a continuation of operations, at the UE, in the sleep state in accordance with the association between the codepoint value and the UE.
[0345] Aspect 33: The apparatus of aspect 32, wherein the control signaling indicates for the UE to operate in accordance with the first state transition procedure, wherein the codepoint value is associated with the UE, and wherein the one or more processors are configured to cause the network entity to: output one or more control channel messages to the UE in accordance with the codepoint value and the first state transition procedure.
[0346] Aspect 34: The apparatus of aspect 32, wherein the control signaling indicates for the UE to operate in accordance with the first state transition procedure, wherein the codepoint value is unassociated with the UE, and wherein the one or more processors are configured to cause the network entity to: refrain to output one or more control channel messages to the UE in accordance with the codepoint value and the first state transition procedure.
[0347] Aspect 35: The apparatus of aspect 32, wherein the control signaling indicates for the UE to operate in accordance with the second state transition procedure, wherein the codepoint value is associated with the UE, and wherein the one or more processors are configured to cause the network entity to: refrain to output one or more control channel messages to the UE in accordance with the codepoint value and the second state transition procedure.
[0348] Aspect 36: The apparatus of aspect 32, wherein the control signaling indicates for the UE to operate in accordance with the second state transition procedure, wherein the codepoint value is unassociated with the UE, and wherein the one or more processors are configured to cause the network entity to: output one or more control channel messages to the UE in accordance with the codepoint value and the second state transition procedure.
[0349] Aspect 37: A method for wireless communication at UE, comprising: receiving control signaling that comprises a configuration for a LP-WUS that represents a set of bits, wherein the configuration indicates that a first bit value corresponds to a first waveform type, wherein the configuration further indicates that a second bit value corresponds to a second waveform type, a third waveform type, or both, and wherein the first waveform type comprises a transition between a first energy state and a second energy state, the second waveform type comprises one of the first energy state or the second energy state, and the third waveform type comprises a transition between the second energy state and the first energy state; receiving, while in a sleep state, the LP-WUS, wherein each bit of the set of bits is associated with a respective waveform in a respective time duration of the LP-WUS, wherein each respective waveform comprises one of the first waveform type, the second waveform type, or the third waveform type; and continuing to operate in the sleep state in accordance with respective waveforms for a first subset of bits of the set of bits, wherein the respective waveforms comprise one of the second waveform type or the third waveform type, and wherein the first subset of bits of the set of bits corresponds to the UE.
[0350] Aspect 38: The method of aspect 37, further comprising: transmitting signaling that indicates a capability of the UE to receive the LP-WUS that comprises the second waveform type, the third waveform type, or both, wherein the configuration for the LP-WUS is in accordance with the capability of the UE.
[0351] Aspect 39: The method of any of aspects 37 through 38, further comprising: receiving, while in an active state, one or more channel state reference signals; and transmitting, while in the active state, a channel state information report or a measurement report that indicates one or more channel measurements measured via the one or more channel state reference signals, wherein the respective waveforms associated with the first subset of bits comprise the third waveform type in accordance with the one or more channel measurements.
[0352] Aspect 40: The method of any of aspects 37 through 39, further comprising: receiving, while in an active state, one or more reference signals; and transmitting, while in the active state, a layer 1 or layer 3 report that indicates one or more channel measurements measured via the one or more reference signals, wherein the respective waveforms associated with the first subset of bits comprise the third waveform type in accordance with the one or more channel measurements.
[0353] Aspect 41: The method of any of aspects 37 through 40, wherein the respective waveforms for the first subset of bits comprise the third waveform type and respective waveforms for a second subset of bits of the set of bits comprise the second waveform type.
[0354] Aspect 42: The method of aspect 41, wherein a presence of the second waveform type for the respective waveforms of the first subset of bits and a presence of the third waveform type in the respective waveforms for the second subset of bits is in accordance with a first pattern of a plurality of patterns.
[0355] Aspect 43: The method of any of aspects 41 through 42, further comprising: performing one or more timing synchronization operations via the respective waveforms for the first subset of bits in accordance with the third waveform type of the respective waveforms for the first subset of bits.
[0356] Aspect 44: The method of any of aspects 41 through 43, further comprising: adjusting an automatic gain control at the UE via the respective waveforms for the first subset of bits in accordance with the third waveform type of the respective waveforms for the first subset of bits.
[0357] Aspect 45: The method of any of aspects 37 through 44, wherein the LP-WUS further represents a set of cyclic redundancy check bits in addition to the set of bits, and respective waveforms for each bit of the set of cyclic redundancy check bits corresponds to one of the first waveform type, the second waveform type, the third waveform type, or any combination thereof.
[0358] Aspect 46: The method of aspect 45, wherein the control signaling further indicates whether the LP-WUS indicates the set of cyclic redundancy check bits in addition to the set of bits.
[0359] Aspect 47: The method of any of aspects 37 through 46, wherein the control signaling further indicates whether a mapping between the second waveform type and one or more bits of the set of bits occurs either prior to forward error correction coding or subsequent to the forward error correction coding, the one or more bits of the set of bits comprise the second bit value, and the LP-WUS is in accordance with the control signaling.
[0360] Aspect 48: The method of aspect 37 through 40, wherein the respective waveforms for each bit of the first subset of bits comprise the second waveform type.
[0361] Aspect 49: The method of any of aspects 37 through 48, wherein the first energy state comprises a presence of energy, and the second energy state comprises an absence of energy.
[0362] Aspect 50: The method of any of aspects 37 through 48, wherein the first energy state comprises an absence of energy, and the second energy state comprises a presence of energy.
[0363] Aspect 51: The method of any of aspects 37 through 50, wherein the UE comprises a main radio and a WUR, and the UE is configured to utilize the main radio to perform one or more operations in an active state, and the UE is configured to utilize the WUR to perform one or more operations when the UE is in the sleep state.
[0364] Aspect 52: The method of any of aspects 37 through 51, wherein the first bit value indicates for the UE to transition from the sleep state to an active state, and the second bit value indicates for the UE to continue to perform one or more operations in the sleep state.
[0365] Aspect 53: The method of any of aspects 37 through 52, wherein a second subset of bits of the set of bits correspond to a second UE that is different from the UE.
[0366] Aspect 54: A method for wireless communication at a network entity, comprising: outputting control signaling that comprises a configuration for a LP-WUS that represents a set of bits, wherein the configuration indicates that a first bit value corresponds to a first waveform type, wherein the configuration further indicates that a second bit value corresponds to a second waveform type, a third waveform type, or both, and wherein the first waveform type comprises a transition between a first energy state and a second energy state, the second waveform type comprises one of the first energy state or the second energy state, and the third waveform type comprises a transition between the second energy state and the first energy state; generating the LP-WUS in accordance with the configuration, wherein each bit of the set of bits corresponds to a respective waveform, and wherein each respective waveform comprises one of the first waveform type, the second waveform type, or the third waveform type; and outputting the LP-WUS, wherein the respective waveform of each bit of the set of bits is conveyed in a respective time duration of the LP-WUS, and wherein respective subsets of bits of the set of bits are each associated with a respective UE of one or more UEs.
[0367] Aspect 55: The method of aspect 54, wherein generating the LP-WUS comprises: obtaining a second set of bits, wherein each bit of the second set of bits is associated with a respective UE of the one or more UEs; mapping each bit of the second set of bits to one of the first waveform type, the second waveform type, or the third waveform type in accordance with a bit value of each bit of the second set of bits and the configuration; obtaining the set of bits in accordance with a forward error correction encoding procedure on the second set of bits, wherein each bit of the set of bits is mapped to one of the first waveform type, the second waveform type, or the third waveform type; and applying one of the first waveform type, the second waveform type, or the third waveform type to each bit of the set of bits in accordance with mapping each bit of the set of bits to one of the first waveform type, the second waveform type, or the third waveform type.
[0368] Aspect 56: The method of aspect 55, further comprising: obtaining a set of cyclic redundancy check bits in accordance with obtainment of the second set of bits, wherein each bit of the set of cyclic redundancy check bits is mapped to one of the first waveform type, the second waveform type, or the third waveform type at a same time as mapping each bit of the second set of bits.
[0369] Aspect 57: The method of aspect 54, wherein generating the LP-WUS comprises: obtaining a second set of bits, wherein each bit of the second set of bits is associated with a respective UE of the one or more UEs; obtaining the set of bits in accordance with a forward error correction encoding procedure on the second set of bits; mapping each bit of the set of bits with one of the first waveform type, the second waveform type, or the third waveform type in accordance with a bit value of each bit of the set of bits and the configuration; and applying one of the first waveform type, the second waveform type, or the third waveform type to each bit of the set of bits in accordance with mapping each bit of the set of bits to one of the first waveform type, the second waveform type, or the third waveform type.
[0370] Aspect 58: The method of aspect 57, further comprising: obtaining a set of cyclic redundancy check bits in accordance with obtainment of the set of bits, wherein each bit of the set of cyclic redundancy check bits is mapped to the first waveform type, the second waveform type, or the third waveform type at a same time as mapping each bit of the set of bits.
[0371] Aspect 59: The method of any of aspects 54 through 58, further comprising: obtaining, from a first UE, signaling that indicates a capability of the first UE to receive the LP-WUS that comprises the second waveform type, the third waveform type, or both, wherein the configuration for the LP-WUS is in accordance with the capability of the first UE.
[0372] Aspect 60: The method of any of aspects 54 through 59, further comprising: outputting, to a first UE, one or more channel state reference signals; and obtaining, a channel state information report that indicates one or more channel measurements associated with the one or more channel state reference signals, wherein respective waveforms associated with a first subset of bits of the set of bits associated with the first UE comprise the third waveform type in accordance with the one or more channel measurements.
[0373] Aspect 61: A method for wireless communication at a UE, comprising: receiving, while in an active state, control signaling that indicates whether the UE is to operate in accordance with a first state transition procedure or a second state transition procedure in response to reception of a LP-WUS; receiving, while in a sleep state, the LP-WUS, wherein the LP-WUS comprises a codepoint value; and performing one of the first state transition procedure or the second state transition procedure in accordance with the control signaling and the codepoint value, wherein the first state transition procedure comprises a transition from the sleep state to the active state in accordance with an association between the codepoint value and the UE, and wherein the second state transition procedure comprises a continuation of operations in the sleep state in accordance with the association between the codepoint value and the UE.
[0374] Aspect 62: The method of aspect 61, wherein the control signaling indicates for the UE to operate in accordance with the first state transition procedure, wherein the codepoint value is associated with the UE, and wherein performing the first state transition procedure comprises: transitioning from the sleep state to the active state in accordance with the codepoint value and the first state transition procedure.
[0375] Aspect 63: The method of aspect 61, wherein the control signaling indicates for the UE to operate in accordance with the first state transition procedure, wherein the codepoint value is unassociated with the UE, and wherein performing the first state transition procedure comprises: refraining to transition from the sleep state to the active state in accordance with the codepoint value and the first state transition procedure.
[0376] Aspect 64: The method of aspect 61, wherein the control signaling indicates for the UE to operate in accordance with the second state transition procedure, wherein the codepoint value is associated with the UE, and wherein performing the second state transition procedure comprises: refraining to transition from the sleep state to the active state in accordance with the codepoint value and the second state transition procedure.
[0377] Aspect 65: The method of aspect 61, wherein the control signaling indicates for the UE to operate in accordance with the second state transition procedure, wherein the codepoint value is unassociated with the UE, and wherein performing the second state transition procedure comprises: transitioning from the sleep state to the active state in accordance with the codepoint value and the second state transition procedure.
[0378] Aspect 66: The method of aspect 61, wherein the UE comprises a main radio and a WUR, and the UE is configured to utilize the main radio to perform one or more operations in the active state, and the UE is configured to utilize the WUR to perform one or more operations in the sleep state.
[0379] Aspect 67: The method of aspect 66, wherein transitioning from the active state to the sleep state comprises: transitioning from performing the one or more operations via the WUR to performing the one or more operations via the main radio.
[0380] Aspect 68: A method for wireless communication at a network entity, comprising: outputting control signaling that indicates whether a UE is to operate in accordance with a first state transition procedure or a second state transition procedure in response to communication of a LP-WUS; and outputting, to the UE, the LP-WUS that comprises a codepoint value, wherein the first state transition procedure comprises a transition, at the UE, from a sleep state to an active state in accordance with an association between the codepoint value and the UE, and wherein the second state transition procedure comprises a continuation of operations, at the UE, in the sleep state in accordance with the association between the codepoint value and the UE.
[0381] Aspect 69: The method of aspect 68, wherein the control signaling indicates for the UE to operate in accordance with the first state transition procedure, wherein the codepoint value is associated with the UE, and wherein the method further comprises: outputting one or more control channel messages to the UE in accordance with the codepoint value and the first state transition procedure.
[0382] Aspect 70: The method of aspect 68, wherein the control signaling indicates for the UE to operate in accordance with the first state transition procedure, wherein the codepoint value is unassociated with the UE, and wherein the method further comprises: refraining to output one or more control channel messages to the UE in accordance with the codepoint value and the first state transition procedure.
[0383] Aspect 71: The method of aspect 68, wherein the control signaling indicates for the UE to operate in accordance with the second state transition procedure, wherein the codepoint value is associated with the UE, and wherein the method further comprises: refraining to output one or more control channel messages to the UE in accordance with the codepoint value and the second state transition procedure.
[0384] Aspect 72: The method of aspect 68, wherein the control signaling indicates for the UE to operate in accordance with the second state transition procedure, wherein the codepoint value is unassociated with the UE, and wherein the method further comprises: outputting one or more control channel messages to the UE in accordance with the codepoint value and the second state transition procedure.
[0385] Aspect 73: A UE for wireless communication, comprising at least one means for performing a method of any of aspects 37 through 53.
[0386] Aspect 74: A non-transitory computer-readable medium storing code for wireless communication, the code comprising instructions executable by one or more processors to cause a UE to perform a method of any of aspects 37 through 53.
[0387] Aspect 75: A network entity for wireless communication, comprising at least one means for performing a method of any of aspects 54 through 60.
[0388] Aspect 76: A non-transitory computer-readable medium storing code for wireless communication, the code comprising instructions executable by one or more processors to cause a network entity to perform a method of any of aspects 54 through 60.
[0389] Aspect 77: A UE for wireless communication, comprising at least one means for performing a method of any of aspects 61 through 67.
[0390] Aspect 78: A non-transitory computer-readable medium storing code for wireless communication, the code comprising instructions executable by one or more processors to cause a UE to perform a method of any of aspects 61 through 67.
[0391] Aspect 79: A network entity for wireless communication, comprising at least one means for performing a method of any of aspects 68 through 72.
[0392] Aspect 80: A non-transitory computer-readable medium storing code for wireless communication, the code comprising instructions executable by one or more processors to cause a network entity to perform a method of any of aspects 68 through 72.
[0393] It should be noted that the methods described herein describe possible implementations. The operations and the steps may be rearranged or otherwise modified and other implementations are possible. Further, aspects from two or more of the methods may be combined.
[0394] Although aspects of an LTE, LTE-A, LTE-A Pro, or NR system may be described for purposes of example, and LTE, LTE-A, LTE-A Pro, or NR terminology may be used in much of the description, the techniques described herein are applicable beyond LTE, LTE-A, LTE-A Pro, or NR networks. For example, the described techniques may be applicable to various other wireless communications systems such as Ultra Mobile Broadband (UMB) , Institute of Electrical and Electronics Engineers (IEEE) 802.11 (Wi-Fi) , IEEE 802.16 (WiMAX) , IEEE 802.20, Flash-OFDM, as well as other systems and radio technologies not explicitly mentioned herein.
[0395] 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 referenced throughout the description may be represented by voltages, currents, electromagnetic waves, magnetic fields or particles, optical fields or particles, or any combination thereof.
[0396] The various illustrative blocks and components described in connection with the disclosure herein may be implemented or performed using a general-purpose processor, a DSP, an ASIC, a CPU, a graphics processing unit (GPU) , a neural processing unit (NPU) , an FPGA or other programmable logic device, discrete gate or transistor logic, discrete hardware components, or any combination thereof designed to perform the functions described herein. A general-purpose processor may be a microprocessor but, in the alternative, the processor may be any processor, controller, microcontroller, or state machine. A processor may also be implemented as a combination of computing devices (e.g., a combination of a DSP and a microprocessor, multiple microprocessors, one or more microprocessors in conjunction with a DSP core, or any other such configuration) . Any functions or operations described herein as being capable of being performed by a processor may be performed by multiple processors that, individually or collectively, are capable of performing the described functions or operations.
[0397] The functions described herein may be implemented using hardware, software executed by a processor, firmware, or any combination thereof. If implemented using software executed by a processor, the functions may be stored as or transmitted using one or more instructions or code of a computer-readable medium. Other examples and implementations are within the scope of the disclosure and appended claims. For example, due to the nature of software, functions described herein may be implemented using software executed by a processor, hardware, firmware, hardwiring, or combinations of any of these. Features implementing functions may also be physically located at various positions, including being distributed such that portions of functions are implemented at different physical locations.
[0398] Computer-readable media includes both non-transitory computer storage media and communication media including any medium that facilitates transfer of a computer program from one location to another. A non-transitory storage medium may be any available medium that may be accessed by a general-purpose or special-purpose computer. By way of example, and not limitation, non-transitory computer-readable media may include RAM, ROM, electrically erasable programmable ROM (EEPROM) , flash memory, compact disk (CD) ROM or other optical disk storage, magnetic disk storage or other magnetic storage devices, or any other non-transitory medium that may be used to carry or store desired program code means in the form of instructions or data structures and that may be accessed by a general-purpose or special-purpose computer or a general-purpose or special-purpose processor. Also, any connection is properly termed a computer-readable medium. For example, if the software is transmitted from a website, server, or other remote source using a coaxial cable, fiber optic cable, twisted pair, digital subscriber line (DSL) , or wireless technologies such as infrared, radio, and microwave, then the coaxial cable, fiber optic cable, twisted pair, DSL, or wireless technologies such as infrared, radio, and microwave are included in the definition of computer-readable medium. Disk and disc, as used herein, include CD, laser disc, optical disc, digital versatile disc (DVD) , floppy disk, and Blu-ray disc. Disks may reproduce data magnetically, and discs may reproduce data optically using lasers. Combinations of the above are also included within the scope of computer-readable media. Any functions or operations described herein as being capable of being performed by a memory may be performed by multiple memories that, individually or collectively, are capable of performing the described functions or operations.
[0399] As used herein, including in the claims, “or” as used in a list of items (e.g., a list of items prefaced by a phrase such as “at least one of” or “one or more of” ) indicates an inclusive list such that, for example, a list of at least one of A, B, or C means A or B or C or AB or AC or BC or ABC (i.e., A and B and C) . Also, as used herein, the phrase “based on” shall not be construed as a reference to a closed set of conditions. For example, an example step that is described as “based on condition A” may be based on both a condition A and a condition B without departing from the scope of the present disclosure. In other words, as used herein, the phrase “based on” shall be construed in the same manner as the phrase “based at least in part on. ”
[0400] As used herein, including in the claims, the article “a” before a noun is open-ended and understood to refer to “at least one” of those nouns or “one or more” of those nouns. Thus, the terms “a, ” “at least one, ” “one or more, ” and “at least one of one or more” may be interchangeable. For example, if a claim recites “a component” that performs one or more functions, each of the individual functions may be performed by a single component or by any combination of multiple components. Thus, the term “acomponent” having characteristics or performing functions may refer to “at least one of one or more components” having a particular characteristic or performing a particular function. Subsequent reference to a component introduced with the article “a” using the terms “the” or “said” may refer to any or all of the one or more components. For example, a component introduced with the article “a” may be understood to mean “one or more components, ” and referring to “the component” subsequently in the claims may be understood to be equivalent to referring to “at least one of the one or more components. ” Similarly, subsequent reference to a component introduced as “one or more components” using the terms “the” or “said” may refer to any or all of the one or more components. For example, referring to “the one or more components” subsequently in the claims may be understood to be equivalent to referring to “at least one of the one or more components. ”
[0401] The term “determine” or “determining” encompasses a variety of actions and, therefore, “determining” can include calculating, computing, processing, deriving, investigating, looking up (such as via looking up in a table, a database, or another data structure) , ascertaining, and the like. Also, “determining” can include receiving (e.g., receiving information) , accessing (e.g., accessing data stored in memory) , and the like. Also, “determining” can include resolving, obtaining, selecting, choosing, establishing, and other such similar actions.
[0402] In the appended figures, similar components or features may have the same reference label. Further, various components of the same type may be distinguished by following the reference label by a dash and a second label that distinguishes among the similar components. If just the first reference label is used in the specification, the description is applicable to any one of the similar components having the same first reference label irrespective of the second reference label or other subsequent reference label.
[0403] The description set forth herein, in connection with the appended drawings, describes example configurations and does not represent all the examples that may be implemented or that are within the scope of the claims. The term “example” used herein means “serving as an example, instance, or illustration” and not “preferred” or “advantageous over other examples. ” The detailed description includes specific details for the purpose of providing an understanding of the described techniques. These techniques, however, may be practiced without these specific details. In some figures, known structures and devices are shown in block diagram form in order to avoid obscuring the concepts of the described examples.
[0404] The description herein is provided to enable a person having ordinary skill in the art to make or use the disclosure. Various modifications to the disclosure will be apparent to a person having ordinary skill in the art, and the generic principles defined herein may be applied to other variations without departing from the scope of the disclosure. Thus, the disclosure is not limited to the examples and designs described herein but is to be accorded the broadest scope consistent with the principles and novel features disclosed herein.
Claims
An apparatus for wireless communication at user equipment (UE) , comprising:one or more memories; andone or more processors coupled with the one or more memories and configured to cause the UE to:receive control signaling that comprises a configuration for a low-power wake-up signal that represents a set of bits, wherein the configuration indicates that a first bit value corresponds to a first waveform type, wherein the configuration further indicates that a second bit value corresponds to a second waveform type, a third waveform type, or both, and wherein the first waveform type comprises a transition between a first energy state and a second energy state, the second waveform type comprises one of the first energy state or the second energy state, and the third waveform type comprises a transition between the second energy state and the first energy state;receive, while in a sleep state, the low-power wake-up signal, wherein each bit of the set of bits is associated with a respective waveform in a respective time duration of the low-power wake-up signal, wherein each respective waveform comprises one of the first waveform type, the second waveform type, or the third waveform type; andcontinue to operate in the sleep state in accordance with respective waveforms for a first subset of bits of the set of bits, wherein the respective waveforms comprise one of the second waveform type or the third waveform type, and wherein the first subset of bits of the set of bits corresponds to the UE.The apparatus of claim 1, wherein the one or more processors are configured to cause the UE to:transmit signaling that indicates a capability of the UE to receive the low-power wake-up signal that comprises the second waveform type, the third waveform type, or both, wherein the configuration for the low-power wake-up signal is in accordance with the capability of the UE.The apparatus of claim 1, wherein the one or more processors are configured to cause the UE to:receive, while in an active state, one or more channel state information reference signals; andtransmit, while in the active state, a channel state information report or a measurement report that indicates one or more channel measurements measured via the one or more channel state information reference signals, wherein the respective waveforms associated with the first subset of bits comprise the third waveform type in accordance with the one or more channel measurements.The apparatus of claim 1, wherein the one or more processors are configured to cause the UE to:receive, while in an active state, one or more reference signals; andtransmit, while in the active state, a layer 1 or layer 3 report that indicates one or more channel measurements measured via the one or more reference signals, wherein the respective waveforms associated with the first subset of bits comprise the third waveform type in accordance with the one or more channel measurements.The apparatus of claim 1, wherein the respective waveforms for the first subset of bits comprise the third waveform type and respective waveforms for a second subset of bits of the set of bits comprise the second waveform type.The apparatus of claim 5, wherein a presence of the second waveform type for the respective waveforms of the first subset of bits and a presence of the third waveform type in the respective waveforms for the second subset of bits is in accordance with a first pattern of a plurality of patterns.The apparatus of claim 5, wherein the one or more processors are configured to cause the UE to:perform one or more timing synchronization operations via the respective waveforms for the first subset of bits in accordance with the third waveform type of the respective waveforms for the first subset of bits.The apparatus of claim 5, wherein the one or more processors are configured to cause the UE to:adjust an automatic gain control at the UE via the respective waveforms for the first subset of bits in accordance with the third waveform type of the respective waveforms for the first subset of bits.The apparatus of claim 1, wherein the low-power wake-up signal further represents a set of cyclic redundancy check bits in addition to the set of bits, and respective waveforms for each bit of the set of cyclic redundancy check bits corresponds to one of the first waveform type, the second waveform type, the third waveform type, or any combination thereof.The apparatus of claim 1, wherein the control signaling further indicates whether a mapping between the second waveform type and one or more bits of the set of bits occurs either prior to forward error correction coding or subsequent to the forward error correction coding, the one or more bits of the set of bits comprise the second bit value, and the low-power wake-up signal is in accordance with the control signaling.The apparatus of claim 1, wherein the first energy state comprises a presence of energy, and the second energy state comprises an absence of energy.The apparatus of claim 1, wherein the first energy state comprises an absence of energy, and the second energy state comprises a presence of energy.The apparatus of claim 1, wherein the UE comprises a main radio and a wake-up radio, and the UE is configured to utilize the main radio to perform one or more operations in an active state, and the UE is configured to utilize the wake-up radio to perform one or more operations when the UE is in the sleep state.An apparatus for wireless communication at a network entity, comprising:one or more memories; andone or more processors coupled with the one or more memories and configured to cause the network entity to:output control signaling that comprises a configuration for a low-power wake-up signal that represents a set of bits, wherein the configuration indicates that a first bit value corresponds to a first waveform type, wherein the configuration further indicates that a second bit value corresponds to a second waveform type, a third waveform type, or both, and wherein the first waveform type comprises a transition between a first energy state and a second energy state, the second waveform type comprises one of the first energy state or the second energy state, and the third waveform type comprises a transition between the second energy state and the first energy state;generate the low-power wake-up signal in accordance with the configuration, wherein each bit of the set of bits corresponds to a respective waveform, and wherein each respective waveform comprises one of the first waveform type, the second waveform type, or the third waveform type; andoutput the low-power wake-up signal, wherein the respective waveform of each bit of the set of bits is conveyed in a respective time duration of the low-power wake-up signal, and wherein respective subsets of bits of the set of bits are each associated with a respective user equipment (UE) of one or more UEs.The apparatus of claim 14, wherein, to generate the low-power wake-up signal, the one or more processors are configured to cause the network entity to:obtain a second set of bits, wherein each bit of the second set of bits is associated with a respective UE of the one or more UEs;map each bit of the second set of bits to one of the first waveform type, the second waveform type, or the third waveform type in accordance with a bit value of each bit of the second set of bits and the configuration;obtain the set of bits in accordance with a forward error correction encoding procedure on the second set of bits, wherein each bit of the set of bits is mapped to one of the first waveform type, the second waveform type, or the third waveform type; andapply one of the first waveform type, the second waveform type, or the third waveform type to each bit of the set of bits in accordance with mapping each bit of the set of bits to one of the first waveform type, the second waveform type, or the third waveform type.The apparatus of claim 15, wherein the one or more processors are configured to cause the network entity to:obtain a set of cyclic redundancy check bits in accordance with obtainment of the second set of bits, wherein each bit of the set of cyclic redundancy check bits is mapped to one of the first waveform type, the second waveform type, or the third waveform type at a same time as mapping each bit of the second set of bits.The apparatus of claim 14, wherein, to generate the low-power wake-up signal, the one or more processors are configured to cause the network entity to:obtain a second set of bits, wherein each bit of the second set of bits is associated with a respective UE of the one or more UEs;obtain the set of bits in accordance with a forward error correction encoding procedure on the second set of bits;map each bit of the set of bits with one of the first waveform type, the second waveform type, or the third waveform type in accordance with a bit value of each bit of the set of bits and the configuration; andapply one of the first waveform type, the second waveform type, or the third waveform type to each bit of the set of bits in accordance with mapping each bit of the set of bits to one of the first waveform type, the second waveform type, or the third waveform type.The apparatus of claim 17, wherein the one or more processors are configured to cause the network entity to:obtain a set of cyclic redundancy check bits in accordance with obtainment of the set of bits, wherein each bit of the set of cyclic redundancy check bits is mapped to the first waveform type, the second waveform type, or the third waveform type at a same time as mapping each bit of the set of bits.An apparatus for wireless communication at a user equipment (UE) , comprising:one or more memories; andone or more processors coupled with the one or more memories and configured to cause the UE to:receive, while in an active state, control signaling that indicates whether the UE is to operate in accordance with a first state transition procedure or a second state transition procedure in response to reception of a low-power wake-up signal;receive, while in a sleep state, the low-power wake-up signal, wherein the low-power wake-up signal comprises a codepoint value; andperform one of the first state transition procedure or the second state transition procedure in accordance with the control signaling and the codepoint value, wherein the first state transition procedure comprises a transition from the sleep state to the active state in accordance with an association between the codepoint value and the UE, and wherein the second state transition procedure comprises a continuation of operations in the sleep state in accordance with the association between the codepoint value and the UE.The apparatus of claim 19, wherein the control signaling indicates for the UE to operate in accordance with the first state transition procedure, wherein the codepoint value is associated with the UE, and wherein, to perform the first state transition procedure, the one or more processors are configured to cause the UE to:transition from the sleep state to the active state in accordance with the codepoint value and the first state transition procedure.